:root {
    --indigo: #303b67;
    --indigo-deep: #252d52;
    --indigo-soft: #e6e7ef;
    --vermilion: #c4553e;
    --vermilion-deep: #a84231;
    --vermilion-soft: #f5e1da;
    --paper: #f5f0e7;
    --paper-deep: #e9e1d4;
    --surface: #fffaf1;
    --surface-strong: #ffffff;
    --ink: #25283a;
    --ink-2: #565564;
    --ink-3: #777482;
    --border: #d6cbbd;
    --border-strong: #b9ad9f;
    --danger: #a83f36;
    --warning: #9a6429;
    --success: #465b76;
    --primary: var(--indigo);
    --primary-hover: var(--indigo-deep);
    --primary-soft: var(--indigo-soft);
    --bg: var(--paper);
    --radius-xs: 3px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-soft: 0 14px 38px rgba(48, 59, 103, 0.08);
    --shadow-lift: 0 18px 50px rgba(48, 59, 103, 0.13);
    --z-nav: 40;
    --z-toast: 80;
    --z-modal: 70;
    --speed-fast: 160ms;
    --speed-base: 210ms;
    --ease-out: cubic-bezier(.16, 1, .3, 1);
    --safe-top: var(--app-safe-top-inset,env(safe-area-inset-top, 0px));
}

/* ---- 首次使用向导 / 支持作者 ---- */
body.has-modal-open { overflow: hidden; }
.onboarding-overlay { z-index: calc(var(--z-modal) + 2); padding: 24px; }
.onboarding-dialog { display: grid; grid-template-columns: 260px minmax(0, 1fr); grid-template-rows: minmax(0,1fr); width: min(960px, 100%); height: min(760px, calc(100dvh - 48px)); overflow: hidden; border: 1px solid var(--border-strong); border-radius: var(--radius-md); background: var(--surface); box-shadow: var(--shadow-lift); }
.onboarding-dialog:focus { outline: 3px solid var(--vermilion); outline-offset: 3px; }
.onboarding-rail { display: flex; flex-direction: column; min-height: 640px; padding: 28px 24px; color: var(--surface); background: var(--action-bg); }
.onboarding-brand { display: flex; align-items: center; gap: 12px; color: var(--surface); }
.onboarding-brand > span { display: grid; place-items: center; width: 50px; height: 50px; border: 1px solid rgba(255,255,255,.48); font-family: Georgia,serif; font-size: .9rem; letter-spacing: .04em; }
.onboarding-brand strong { font-size: 1rem; }
.onboarding-rail > p { margin: 28px 0 0; color: rgba(255,250,241,.82); font-size: .86rem; line-height: 1.72; }
.onboarding-steps { display: grid; gap: 0; margin: 32px 0; padding: 0; list-style: none; }
.onboarding-steps li { position: relative; display: grid; grid-template-columns: 34px 1fr; align-items: center; gap: 10px; min-height: 54px; color: rgba(255,250,241,.58); }
.onboarding-steps li::after { position: absolute; top: 44px; bottom: -10px; left: 16px; width: 1px; content: ""; background: rgba(255,255,255,.2); }
.onboarding-steps li:last-child::after { display: none; }
.onboarding-steps li span { display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid rgba(255,255,255,.36); border-radius: 50%; font-family: Georgia,serif; font-variant-numeric: tabular-nums; }
.onboarding-steps li.is-current { color: var(--surface); }
.onboarding-steps li.is-current span { border-color: var(--vermilion-soft); background: var(--accent-bg); }
.onboarding-steps li.is-complete { color: rgba(255,250,241,.82); }
.onboarding-steps li.is-complete span { border-color: var(--surface); color: var(--indigo); background: var(--surface); }
.onboarding-privacy { margin-top: auto !important; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.2); font-size: .75rem !important; }
.onboarding-stage { display: grid; grid-template-rows: auto minmax(0,1fr) auto; min-height: 0; overflow: hidden; }
.onboarding-stage__header { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; padding: 0 30px; border-bottom: 1px solid var(--border); }
.onboarding-stage__header > span { color: var(--ink-3); font-size: .78rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.onboarding-skip { min-height: 44px; padding: 0 4px; color: var(--ink-2); }
.onboarding-panel { min-height: 0; padding: 30px; overflow-y: auto; }
.onboarding-panel.is-active { animation: onboarding-reveal .34s var(--ease-out) both; }
.onboarding-panel h2 { max-width: 690px; margin: 4px 0 12px; font-family: Georgia,"Times New Roman","Microsoft YaHei UI",serif; font-size: clamp(2rem,4vw,3rem); line-height: 1.06; letter-spacing: -.035em; }
.onboarding-panel h2:focus { outline: none; }
.onboarding-lead { margin: 0; color: var(--vermilion); font-size: .82rem; font-weight: 800; letter-spacing: .08em; }
.onboarding-intro { max-width: 68ch; margin: 0; color: var(--ink-2); font-size: .96rem; line-height: 1.75; }
.onboarding-note { margin: 20px 0 0; color: var(--ink-3); font-size: .8rem; }
.onboarding-feature-list { margin-top: 24px; border-top: 2px solid var(--indigo); }
.onboarding-feature-list article { display: grid; grid-template-columns: 66px 1fr; gap: 16px; padding: 16px 4px; border-bottom: 1px solid var(--border); }
.onboarding-feature-list article > span { align-self: start; color: var(--vermilion); font-family: Georgia,"Microsoft YaHei UI",serif; font-size: 1.05rem; font-weight: 700; }
.onboarding-feature-list strong { display: block; font-size: 1rem; }
.onboarding-feature-list p { margin: 4px 0 0; color: var(--ink-2); font-size: .84rem; }
.onboarding-ai-state { display: flex; align-items: center; gap: 12px; margin: 22px 0 18px; padding: 14px 0; border-block: 1px solid var(--border); }
.onboarding-ai-state .status-dot { flex: 0 0 auto; }
.onboarding-ai-state.is-ready .status-dot { background: var(--action-bg); box-shadow: 0 0 0 4px var(--indigo-soft); }
.onboarding-ai-state strong { display: block; }
.onboarding-ai-state p { margin: 3px 0 0; color: var(--ink-2); font-size: .8rem; }
.onboarding-secret-field { margin-top: 7px; }
.onboarding-secret-field input { min-height: 50px; }
.onboarding-key-actions { display: flex; align-items: center; gap: 14px; margin-top: 12px; }
.onboarding-key-actions > span { color: var(--ink-3); font-size: .78rem; line-height: 1.5; }
.onboarding-key-help { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--border); }
.onboarding-key-help summary { min-height: 44px; color: var(--indigo); font-weight: 700; cursor: pointer; }
.onboarding-key-help p { margin: 6px 0 0; color: var(--ink-2); font-size: .8rem; line-height: 1.65; }
.onboarding-rank-ledger { display: grid; gap: 10px; margin-top: 22px; padding: 18px 0; border-block: 2px solid var(--indigo); }
.onboarding-rank-ledger > div { display: grid; grid-template-columns: 92px minmax(120px,1fr) 44px; align-items: center; gap: 12px; }
.onboarding-rank-ledger b,.onboarding-rank-ledger strong { font-size: .8rem; }
.onboarding-rank-ledger strong { text-align: right; font-variant-numeric: tabular-nums; }
.onboarding-rank-ledger span { height: 7px; background: var(--paper-deep); }
.onboarding-rank-ledger i { display: block; width: var(--weight); height: 100%; min-width: 14px; background: var(--accent-bg); }
.onboarding-rank-note,.onboarding-ready { margin-top: 18px; padding: 16px 18px; background: var(--paper); box-shadow: inset 0 2px 0 var(--indigo); }
.onboarding-rank-note p,.onboarding-ready p { margin: 5px 0 0; color: var(--ink-2); font-size: .82rem; line-height: 1.65; }
.onboarding-ai-capabilities { margin: 22px 0 0; padding: 0; border-top: 2px solid var(--indigo); list-style: none; }
.onboarding-ai-capabilities li { display: grid; grid-template-columns: minmax(150px,.65fr) minmax(0,1.35fr); gap: 18px; padding: 15px 2px; border-bottom: 1px solid var(--border); }
.onboarding-ai-capabilities strong { color: var(--indigo); }
.onboarding-ai-capabilities span { color: var(--ink-2); font-size: .82rem; line-height: 1.6; }
.onboarding-actions { display: flex; justify-content: space-between; gap: 12px; padding: 16px 30px calc(16px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); border-top: 1px solid var(--border); background: var(--surface); }
.onboarding-actions .btn { min-width: 124px; }
@keyframes onboarding-reveal { from { opacity: .35; transform: translateY(10px); clip-path: inset(0 0 12% 0); } to { opacity: 1; transform: translateY(0); clip-path: inset(0); } }

.tool-link-button { display: flex; align-items: center; justify-content: space-between; gap: 1rem; width: 100%; min-height: 58px; padding: .8rem 0; border: 0; border-top: 1px solid var(--border); color: var(--ink); background: transparent; text-align: left; cursor: pointer; }
.tool-link-button span { color: var(--ink-3); font-size: .75rem; font-weight: 400; }
.tool-link-button:hover b,.tool-link-button:focus-visible b { color: var(--vermilion); }
.settings-section--support { align-items: center; }
.support-author-panel { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.support-author-panel p { max-width: 58ch; margin: 0; color: var(--ink-2); line-height: 1.7; }
.support-author-panel .btn { flex: 0 0 auto; }
.support-modal__card { width: min(900px,100%); padding: 0; overflow: hidden auto; }
.support-modal__header { align-items: start; padding: 24px 26px 18px; border-bottom: 2px solid var(--indigo); }
.support-modal__header h2 { max-width: 720px; margin: 0; font-family: Georgia,"Times New Roman","Microsoft YaHei UI",serif; font-size: clamp(1.65rem,3vw,2.5rem); line-height: 1.12; }
.support-modal__header p { margin: 8px 0 0; color: var(--ink-2); }
.support-code-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 1px; background: var(--border); }
.support-code { margin: 0; padding: 24px; background: var(--surface); }
.support-code > div { display: grid; place-items: center; min-height: 370px; padding: 10px; background: var(--surface-strong); border: 1px solid var(--border); }
.support-code img { display: block; width: auto; max-width: 100%; max-height: 410px; object-fit: contain; }
.support-code figcaption { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-top: 13px; }
.support-code figcaption strong { color: var(--indigo); font-size: 1rem; }
.support-code figcaption span { color: var(--ink-3); font-size: .75rem; }
.support-modal__thanks { max-width: 70ch; margin: 0 auto; padding: 20px 26px 8px; color: var(--ink-2); text-align: center; line-height: 1.7; }
.support-modal__done { display: block; min-width: 140px; margin: 14px auto 24px; }
.welcome-overlay { z-index: calc(var(--z-modal) + 3); padding: 24px; }
.welcome-dialog { width: min(590px,100%); max-height: calc(100dvh - 48px); overflow-y: auto; padding: clamp(28px,5vw,50px); border: 1px solid var(--border-strong); border-radius: var(--radius-md); background: var(--surface); box-shadow: inset 0 5px 0 var(--vermilion),var(--shadow-lift); }
.welcome-dialog:focus { outline: 3px solid var(--vermilion); outline-offset: 3px; }
.welcome-dialog h2 { max-width: 11ch; margin: 8px 0 16px; color: var(--indigo); font: 700 clamp(2.25rem,6vw,4rem)/1.03 Georgia,"Microsoft YaHei UI",serif; letter-spacing: -.04em; }
.welcome-dialog > p:not(.eyebrow) { color: var(--ink-2); line-height: 1.75; }
.welcome-route { display: grid; grid-template-columns: auto 1fr; gap: 4px 16px; margin: 26px 0; padding: 18px 0; border-block: 2px solid var(--indigo); }
.welcome-route span { grid-row: span 2; align-self: center; padding-right: 16px; border-right: 1px solid var(--border); color: var(--vermilion); font-weight: 800; }
.welcome-route strong { color: var(--indigo); }
.welcome-route small,.welcome-dialog > small { color: var(--ink-3); line-height: 1.6; }
.welcome-actions { display: grid; grid-template-columns: 1.15fr .85fr; gap: 12px; margin-bottom: 14px; }
.welcome-actions .btn { min-height: 50px; }
.onboarding-help-panel { align-self: center; }
.onboarding-help-panel p { margin-top: 0; color: var(--ink-2); line-height: 1.7; }

@media (max-width: 767px) {
    .onboarding-overlay { align-items: end; padding: 0; }
    .onboarding-dialog { grid-template-columns: 1fr; grid-template-rows: auto minmax(0,1fr); width: 100%; height: calc(100dvh - var(--app-safe-top-inset,env(safe-area-inset-top))); border-width: 1px 0 0; border-radius: var(--radius-md) var(--radius-md) 0 0; }
    .onboarding-rail { display: block; min-height: 0; padding: 14px 16px 10px; }
    .onboarding-brand > span { width: 38px; height: 38px; }
    .onboarding-rail > p { display: none; }
    .onboarding-steps { grid-template-columns: repeat(4,1fr); gap: 6px; margin: 12px 0 0; }
    .onboarding-steps li { display: grid; grid-template-columns: 1fr; justify-items: center; gap: 3px; min-height: 42px; font-size: .68rem; }
    .onboarding-steps li::after { top: 16px; right: -9px; bottom: auto; left: calc(50% + 17px); width: calc(100% - 25px); height: 1px; }
    .onboarding-steps li span { width: 30px; height: 30px; background: var(--action-bg); z-index: 1; }
    .onboarding-privacy { display: none !important; }
    .onboarding-stage { min-height: 0; }
    .onboarding-stage__header { min-height: 50px; padding: 0 16px; }
    .onboarding-panel { padding: 20px 16px; }
    .onboarding-panel h2 { font-size: clamp(1.8rem,8.2vw,2.45rem); }
    .onboarding-feature-list { margin-top: 18px; }
    .onboarding-feature-list article { grid-template-columns: 54px 1fr; gap: 10px; padding: 12px 2px; }
    .onboarding-key-actions { align-items: stretch; flex-direction: column; }
    .onboarding-key-actions .btn { width: 100%; }
    .onboarding-rank-ledger > div { grid-template-columns: 78px minmax(80px,1fr) 38px; gap: 8px; }
    .onboarding-ai-capabilities li { grid-template-columns: 1fr; gap: 4px; }
    .onboarding-actions { position: sticky; bottom: 0; padding: 12px 16px calc(12px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
    .onboarding-actions .btn { flex: 1; min-width: 0; min-height: 48px; }
    .welcome-overlay { align-items: end; padding: 0; }
    .welcome-dialog { width: 100%; max-height: calc(100dvh - var(--app-safe-top-inset,env(safe-area-inset-top))); padding: 28px 18px calc(22px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); border-width: 1px 0 0; border-radius: var(--radius-md) var(--radius-md) 0 0; }
    .welcome-dialog h2 { font-size: clamp(2.1rem,11vw,3.25rem); }
    .welcome-actions { grid-template-columns: 1fr; }
    .support-author-panel { align-items: stretch; flex-direction: column; gap: 14px; }
    .support-author-panel .btn { width: 100%; }
    .support-modal { align-items: end; padding: 0; }
    .support-modal__card { width: 100%; max-height: calc(92dvh - var(--app-safe-top-inset,env(safe-area-inset-top))); border-radius: var(--radius-md) var(--radius-md) 0 0; }
    .support-modal__header { padding: 20px 16px 15px; }
    .support-code-grid { grid-template-columns: 1fr; }
    .support-code { padding: 18px 16px; }
    .support-code > div { min-height: 0; }
    .support-code img { max-height: none; }
    .support-modal__thanks { padding-inline: 16px; text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
    .onboarding-panel.is-active { animation: none; }
}
html { scroll-padding-top: calc(64px + var(--safe-top)); }

/* Notes management: fixed desktop rail and compact mobile drawer. */
.note-manager-drawer-trigger,
.note-manager-backdrop,
.note-manager-drawer__handle,
.note-manager-drawer__close { display: none; }
.notes-insight {
    position: sticky;
    top: 76px;
    max-height: calc(100dvh - 96px);
    overflow-y: auto;
    overscroll-behavior: contain;
}
.notes-insight .note-history-list { max-height: min(34dvh,360px); }
.note-manager-heading-actions { display: flex; align-items: center; gap: .55rem; }
.rank-card--summary { background: var(--surface); color: var(--ink); }
.rank-card--summary .rank-card__heading h2,
.rank-card--summary .rank-summary__identity strong,
.rank-card--summary .rank-summary__facts dd { color: var(--indigo); }
.rank-card--summary .rank-summary__identity span,
.rank-card--summary .rank-summary__identity p,
.rank-card--summary .rank-summary__facts dt,
.rank-card--summary .home-rank-advice p { color: var(--ink-2); }
.rank-card--summary .text-link { color: var(--indigo); }
.ai-usage-ledger--focused .ai-usage-visuals { grid-template-columns: 1fr; }
.ai-usage-day-detail { min-height: 1.5rem; margin: .5rem 0 0; color: var(--ink-2); font-size: .8rem; line-height: 1.6; }

@media (max-width: 767px) {
    .note-manager-drawer-trigger {
        display: flex;
        width: 100%;
        min-height: 48px;
        margin: 0 0 12px;
        padding: .7rem 1rem;
        align-items: center;
        justify-content: space-between;
        border: 1px solid var(--indigo);
        background: var(--surface);
        color: var(--indigo);
        font: inherit;
        font-weight: 800;
    }
    .note-manager-drawer-trigger strong { color: var(--vermilion); font-variant-numeric: tabular-nums; }
    .notes-insight { position: static; max-height: none; overflow: visible; }
    .notes-insight .note-manager {
        position: fixed;
        z-index: 92;
        inset: auto 0 0;
        max-height: 75dvh;
        padding: 0 18px calc(18px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom)));
        overflow: hidden;
        background: var(--surface);
        border-top: 5px solid var(--indigo);
        box-shadow: 0 -12px 28px rgba(32,35,49,.18);
        transform: translateY(105%);
        transition: transform var(--speed-base) ease;
    }
    .notes-insight .note-manager.is-open { transform: translateY(0); }
    .note-manager-drawer__handle { display: grid; min-height: 32px; place-items: center; touch-action: pan-y; }
    .note-manager-drawer__handle span { width: 44px; height: 4px; background: var(--border-strong); }
    .note-manager-drawer__close { display: inline-grid; place-items: center; }
    .notes-insight .note-history-list { max-height: calc(75dvh - 150px); }
    .note-manager-backdrop {
        display: block;
        position: fixed;
        z-index: 91;
        inset: 0;
        border: 0;
        background: rgba(32,35,49,.42);
        opacity: 0;
        transition: opacity var(--speed-base) ease;
    }
    .note-manager-backdrop[hidden] { display: none; }
    .note-manager-backdrop.is-open { opacity: 1; }
    body.note-drawer-open { overflow: hidden; }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-width: 320px;
    min-height: 100dvh;
    background: var(--paper);
    color: var(--ink);
    font-family: "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
    font-size: 14px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}
body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    opacity: .16;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.86' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.08'/%3E%3C/svg%3E");
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button, select { cursor: pointer; }
button { border: 0; }
img, svg { display: block; max-width: 100%; }
[x-cloak] { display: none !important; }
::selection { background: var(--vermilion-soft); color: var(--ink); }

:focus-visible {
    outline: 3px solid rgba(196, 85, 62, .45);
    outline-offset: 3px;
}
.skip-link {
    position: fixed;
    left: 1rem;
    top: -5rem;
    z-index: 100;
    padding: .75rem 1rem;
    color: var(--on-action);
    background: var(--action-bg);
    border-radius: var(--radius-sm);
    transition: top var(--speed-fast) var(--ease-out);
}
.skip-link:focus { top: 1rem; }

/* Shell */
.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-nav);
    height: 64px;
    background: rgba(245, 240, 231, .96);
    border-bottom: 1px solid var(--border);
}
.site-header__inner {
    width: min(1500px, 100%);
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; width: fit-content; }
.brand__mark {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    color: var(--on-action);
    background: var(--action-bg);
    border: 1px solid var(--indigo-deep);
    border-radius: var(--radius-sm);
    font-family: Georgia, "Times New Roman", serif;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .08em;
}
.brand__copy { display: grid; line-height: 1.15; }
.brand__copy strong { font-size: 15px; letter-spacing: -.02em; }
.brand__copy small { margin-top: 3px; color: var(--ink-3); font-size: 10px; }
.desktop-nav { display: flex; align-items: center; gap: 4px; }
.nav-link {
    position: relative;
    min-width: 72px;
    min-height: 42px;
    display: grid;
    place-items: center;
    padding: 0 16px;
    color: var(--ink-2);
    font-weight: 600;
    transition: color var(--speed-fast), background var(--speed-fast);
}
.nav-link::after {
    content: "";
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 2px;
    height: 2px;
    background: var(--accent-bg);
    transform: scaleX(0);
    transition: transform var(--speed-base) var(--ease-out);
}
.nav-link:hover, .nav-link.is-active { color: var(--indigo); background: rgba(255,255,255,.45); }
.nav-link.is-active::after { transform: scaleX(1); }
.header-status {
    justify-self: end;
    min-height: 42px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0 12px;
    color: var(--ink-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
}
.status-dot { width: 7px; height: 7px; background: var(--accent-bg); border-radius: 50%; }
.site-main { width: 100%; min-height: calc(100dvh - 64px); }
.mobile-nav { display: none; }

/* Shared page system */
.page-shell, .dashboard {
    width: min(1500px, 100%);
    margin: 0 auto;
    padding: 20px 24px 32px;
}
.page-header {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 18px;
}
.page-header__copy { min-width: 0; }
.page-kicker, .panel-head, .section-kicker {
    color: var(--vermilion);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .08em;
}
.page-title {
    margin: 4px 0 0;
    font-size: clamp(26px, 3vw, 42px);
    line-height: 1.08;
    letter-spacing: -.05em;
    text-wrap: balance;
}
.page-description { max-width: 66ch; margin: 7px 0 0; color: var(--ink-2); }
.page-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.surface, .panel, .chart-card, .card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}
.panel, .chart-card, .card { padding: 18px; }
.panel-head { margin-bottom: 12px; color: var(--ink-3); }
.section-heading { margin: 0; font-size: 17px; line-height: 1.3; }
.section-note { margin: 4px 0 0; color: var(--ink-3); font-size: 12px; }
.numeric, .metric-value, .metric-number { font-variant-numeric: tabular-nums; }

.btn-act, .button, .btn-confirm {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0 17px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-weight: 700;
    transition: transform var(--speed-fast), background var(--speed-fast), color var(--speed-fast), border-color var(--speed-fast);
}
.btn-act:hover, .button:hover, .btn-confirm:hover { transform: translateY(-1px); }
.btn-act:active, .button:active, .btn-confirm:active { transform: translateY(1px); }
.btn-act-primary, .button--primary, .btn-confirm { background: var(--accent-bg); color: var(--on-action); }
.btn-act-primary:hover, .button--primary:hover, .btn-confirm:hover { background: var(--vermilion-deep); }
.btn-act-secondary, .btn-act-review, .button--secondary { background: transparent; color: var(--indigo); border-color: var(--border-strong); }
.btn-act-secondary:hover, .btn-act-review:hover, .button--secondary:hover { background: var(--indigo-soft); border-color: var(--indigo); }
.button--text { min-height: 44px; display: inline-flex; align-items: center; color: var(--indigo); font-weight: 700; border-bottom: 1px solid currentColor; }
.btn-sm { min-height: 36px; padding: 0 12px; font-size: 12px; }
button:disabled, .is-disabled { opacity: .48; cursor: not-allowed; transform: none !important; }

select, input[type="text"], input[type="number"], input[type="file"], textarea, .field {
    width: 100%;
    min-height: 44px;
    padding: 10px 12px;
    background: var(--surface-strong);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
}
textarea { min-height: 160px; resize: vertical; }
label { color: var(--ink-2); font-weight: 600; }
.form-row { display: grid; gap: 7px; }
.field-help { color: var(--ink-3); font-size: 12px; }
.form-error { color: var(--danger); font-size: 12px; }

/* Common data and states */
.metrics, .metric-strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.metric, .metric-item { min-width: 0; padding: 12px 14px; border-left: 1px solid var(--border); }
.metric:first-child, .metric-item:first-child { border-left: 0; }
.metric-value, .metric-number { font-size: clamp(22px, 2.4vw, 34px); font-weight: 800; line-height: 1; letter-spacing: -.04em; }
.metric-label { margin-top: 5px; color: var(--ink-3); font-size: 11px; }
.progress-track, .wb-progress-bar, .level-stage-bar, .level-progress-bar {
    height: 6px;
    overflow: hidden;
    background: var(--paper-deep);
    border-radius: var(--radius-xs);
}
.progress-fill, .wb-progress-fill, .level-stage-fill, .level-progress-fill {
    height: 100%;
    background: var(--accent-bg);
    transition: opacity 600ms var(--ease-out);
}
.state-block {
    min-height: 150px;
    display: grid;
    place-items: center;
    padding: 24px;
    color: var(--ink-2);
    text-align: center;
    border: 1px dashed var(--border-strong);
    background: rgba(255,255,255,.35);
}
.state-block strong { display: block; margin-bottom: 5px; color: var(--ink); font-size: 16px; }
.skeleton { position: relative; overflow: hidden; background: var(--paper-deep); color: transparent !important; }
.skeleton::after { content: ""; position: absolute; inset: 0; background: rgba(255,255,255,.48); transform: translateX(-100%); animation: skeleton 1.15s infinite; }
@keyframes skeleton { to { transform: translateX(100%); } }
.toast-stack { position: fixed; top: 78px; right: 18px; z-index: var(--z-toast); display: grid; gap: 8px; width: min(360px, calc(100vw - 36px)); }
.toast { padding: 12px 14px; color: var(--on-action); background: var(--action-bg); border: 1px solid rgba(255,255,255,.22); border-radius: var(--radius-sm); box-shadow: var(--shadow-lift); }
.toast--success { background: var(--success); }
.toast--error { background: var(--danger); }
.toast--warning { background: var(--warning); }

/* Legacy-compatible workspace primitives */
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 14px; }
.topbar-left { flex: 1; min-width: 0; }
.topbar-greet { color: var(--vermilion); font-size: 11px; font-weight: 800; letter-spacing: .08em; }
.topbar-quote { margin-top: 4px; font-family: Georgia, "Times New Roman", serif; font-size: 18px; color: var(--ink); }
.topbar-author { color: var(--ink-3); font-size: 11px; }
.topbar-center, .topbar-right { display: flex; align-items: center; gap: 8px; }
.main-grid { display: grid; grid-template-columns: minmax(230px, .75fr) minmax(0, 1.35fr) minmax(260px, .9fr); gap: 14px; }
.workbench { display: grid; grid-template-columns: minmax(220px, .75fr) minmax(0, 1.45fr) minmax(240px, .8fr); gap: 14px; }
.workbench__context, .workbench__main, .workbench__insight { min-width: 0; }
.workbench__main { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 20px; }
.workbench__context, .workbench__insight { padding: 18px; background: var(--surface); border-top: 1px solid var(--border); }

.review-tabs, .learn-tabs { display: flex; gap: 4px; }
.review-tab, .learn-tab {
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: 9px 12px;
    color: var(--ink-2);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: background var(--speed-fast), color var(--speed-fast), border-color var(--speed-fast);
}
.review-tab:hover, .learn-tab:hover, .review-tab.active, .learn-tab.active { color: var(--indigo); background: var(--indigo-soft); border-color: rgba(48,59,103,.18); }

.quiz-options { display: grid; gap: 8px; margin-top: 14px; }
.quiz-opt-btn {
    min-height: 48px;
    padding: 10px 14px;
    text-align: left;
    background: var(--surface-strong);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: border-color var(--speed-fast), transform var(--speed-fast), background var(--speed-fast);
}
.quiz-opt-btn:hover { border-color: var(--indigo); transform: translateX(2px); }
.quiz-opt-btn.correct { background: var(--indigo-soft); border-color: var(--indigo); color: var(--indigo-deep); }
.quiz-opt-btn.wrong { background: var(--vermilion-soft); border-color: var(--vermilion); color: var(--danger); }
.sentence-block { margin-top: 8px; padding: 12px 14px; background: rgba(255,255,255,.45); border-top: 1px solid var(--border); }
.english-word, .study-card-word-main, .review-card-word-main, .quiz-word-big { font-family: Georgia, "Times New Roman", serif; }
.study-card-word-main, .review-card-word-main { font-size: clamp(34px, 6vw, 58px); font-weight: 700; line-height: 1.05; letter-spacing: -.04em; }
.study-card-phonetic, .review-card-phonetic { margin-top: 7px; color: var(--ink-3); }
.study-card-meaning, .review-card-meaning { margin-top: 12px; font-size: 17px; }
.study-card-word, .review-card-word { padding: 28px; text-align: center; background: var(--surface-strong); border: 1px solid var(--border); }
.review-card-hint { margin-top: 14px; color: var(--ink-3); font-size: 12px; }

.word-list { display: grid; gap: 4px; max-height: 420px; overflow-y: auto; }
.word-list-item, .article-item {
    display: block;
    min-height: 44px;
    padding: 10px 11px;
    background: rgba(255,255,255,.34);
    border-bottom: 1px solid var(--border);
    transition: background var(--speed-fast), color var(--speed-fast);
}
.word-list-item:hover, .word-list-item.active, .article-item:hover, .article-item.active { background: var(--indigo-soft); color: var(--indigo); }
.article-item-title { font-weight: 700; }
.article-item-meta { margin-top: 3px; color: var(--ink-3); font-size: 11px; }
.topic-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.topic-tag { min-height: 36px; padding: 7px 10px; color: var(--ink-2); border: 1px solid var(--border); border-radius: var(--radius-sm); background: transparent; }
.topic-tag.active { color: var(--on-action); background: var(--action-bg); border-color: var(--indigo); }
.article-body { max-width: 72ch; margin: 0 auto; font-family: Georgia, "Times New Roman", serif; font-size: 17px; line-height: 1.9; }

.modal-overlay { position: fixed; inset: 0; z-index: var(--z-modal); display: grid; place-items: center; padding: 18px; background: rgba(37,40,58,.54); }
.modal-card { width: min(620px, 100%); max-height: min(760px, 90dvh); overflow-y: auto; padding: 22px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); box-shadow: var(--shadow-lift); }
.modal-box { width: min(620px, 100%); max-height: min(760px, 90dvh); overflow-y: auto; padding: 22px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); box-shadow: var(--shadow-lift); }
.modal-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 14px; }

/* Growth and data */
.growth-grid, .charts-row { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.chart-card { min-width: 0; }
.chart-card h3 { margin: 0 0 10px; font-size: 15px; }
.chart-card-full { grid-column: 1 / -1; }
.profile-hero, .growth-hero { display: grid; grid-template-columns: 220px minmax(0,1fr) minmax(220px,.7fr); gap: 20px; margin-bottom: 14px; padding: 22px; background: var(--action-bg); color: var(--on-action); border-radius: var(--radius-md); }
.profile-figure-col { display: grid; justify-items: center; }
.profile-info-col, .profile-promo-col { align-self: center; }
.figure-ring-container { position: relative; width: 150px; height: 150px; }
.figure-ring-svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.figure-inner { position: absolute; inset: 17px; display: grid; place-items: center; overflow: hidden; background: var(--surface); border-radius: 50%; }
.level-name-plate { text-align: center; }
.level-rank-badge { color: var(--vermilion); font-size: 11px; font-weight: 800; }
.level-name-big { font: 800 24px Georgia, serif; }
.level-stage-sm { color: var(--ink-3); font-size: 11px; }
.level-promo-col { display: grid; gap: 4px; }
.promo-row { display: flex; align-items: center; gap: 7px; color: rgba(255,255,255,.48); font-size: 11px; }
.promo-dot { width: 6px; height: 6px; background: currentColor; border-radius: 50%; }
.promo-row.done { color: rgba(255,255,255,.72); }
.promo-row.current { color: var(--on-action); font-weight: 800; }
.promo-line { flex: 1; height: 1px; background: currentColor; opacity: .4; }
.score-line, .level-extra-row { display: flex; justify-content: space-between; gap: 10px; font-size: 12px; }

/* Utility layouts */
.tool-grid { display: grid; grid-template-columns: minmax(260px,.7fr) minmax(0,1.3fr); gap: 14px; }
.settings-list { display: grid; gap: 0; }
.settings-row { min-height: 72px; display: grid; grid-template-columns: minmax(0,1fr) minmax(180px,.65fr); align-items: center; gap: 20px; padding: 14px 0; border-bottom: 1px solid var(--border); }
.settings-row:last-child { border-bottom: 0; }
.settings-row h3 { margin: 0; font-size: 15px; }
.settings-row p { margin: 4px 0 0; color: var(--ink-3); font-size: 12px; }
.shortcut-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 8px; }
.shortcut-link { min-height: 82px; display: flex; flex-direction: column; justify-content: space-between; padding: 13px; background: rgba(255,255,255,.4); border: 1px solid var(--border); border-radius: var(--radius-sm); transition: transform var(--speed-fast), border-color var(--speed-fast), background var(--speed-fast); }
.shortcut-link:hover { transform: translateY(-2px); border-color: var(--indigo); background: var(--surface-strong); }
.shortcut-link strong { font-size: 14px; }
.shortcut-link small { color: var(--ink-3); }
.error-page { min-height: calc(100dvh - 64px); display: grid; place-items: center; padding: 28px; }
.error-page__card { width: min(760px,100%); display: grid; grid-template-columns: .8fr 1.2fr; gap: 34px; align-items: center; padding: 36px; background: var(--surface); border: 1px solid var(--border); }
.error-code { font: 800 clamp(72px,13vw,150px) Georgia,serif; color: var(--indigo); line-height: .8; }

/* Small compatibility helpers */
.hidden { display: none !important; }
.text-center { text-align: center; }
.fade-in { animation: fade-in 260ms var(--ease-out); }
@keyframes fade-in { from { opacity: 0; transform: translateY(6px); } }
.fixed { position: fixed; }.inset-0 { inset: 0; }.z-50 { z-index: 50; }.flex { display: flex; }.grid { display: grid; }.items-center { align-items: center; }.justify-center { justify-content: center; }.justify-between { justify-content: space-between; }.gap-2 { gap: .5rem; }.gap-3 { gap: .75rem; }.gap-4 { gap: 1rem; }.w-full { width: 100%; }.font-bold { font-weight: 700; }.font-semibold { font-weight: 600; }

@media (min-width: 1200px) {
    .desktop-density { min-height: calc(100dvh - 104px); }
    .main-grid--dashboard { grid-template-columns: minmax(230px,.76fr) minmax(420px,1.35fr) minmax(300px,.9fr); }
}

@media (max-width: 1199px) {
    .site-header__inner { padding: 0 18px; }
    .page-shell, .dashboard { padding: 18px; }
    .main-grid, .workbench { grid-template-columns: minmax(220px,.72fr) minmax(0,1.28fr); }
    .main-grid > :last-child, .workbench__insight { grid-column: 1 / -1; }
    .profile-hero, .growth-hero { grid-template-columns: 180px minmax(0,1fr); }
    .profile-promo-col { grid-column: 1 / -1; }
}

@media (max-width: 767px) {
    html { scroll-padding-top: calc(54px + var(--safe-top)); }
    body { padding-bottom: calc(68px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
    .site-header { height: calc(54px + var(--safe-top)); padding-top: var(--safe-top); }
    .site-header__inner { height: 54px; grid-template-columns: 1fr auto; padding: 0 max(14px,var(--app-safe-right-inset,env(safe-area-inset-right))) 0 max(14px,var(--app-safe-left-inset,env(safe-area-inset-left))); }
    .brand__mark { width: 34px; height: 34px; }
    .brand__copy small { display: none; }
    .desktop-nav, .header-status { display: none; }
    .site-main { min-height: calc(100dvh - 54px - var(--safe-top)); }
    .mobile-nav {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: var(--z-nav);
        min-height: calc(64px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom)));
        display: grid;
        grid-template-columns: repeat(5,minmax(0,1fr));
        padding-bottom: var(--app-safe-bottom-inset,env(safe-area-inset-bottom));
        background: var(--surface);
        border-top: 1px solid var(--border);
    }
    .mobile-nav__item { min-width: 0; min-height: 64px; display: grid; place-items: center; align-content: center; gap: 2px; color: var(--ink-3); white-space: nowrap; }
    .mobile-nav__item span { font-family: Georgia,serif; font-size: 14px; line-height: 1; }
    .mobile-nav__item b { font-size: 10px; }
    .mobile-nav__item.is-active { color: var(--vermilion); background: var(--vermilion-soft); }
    body.has-ime-open { padding-bottom: 0; }
    body.has-ime-open .mobile-nav { display: none; }
    .page-shell, .dashboard { padding: 14px 12px 24px; }
    .page-header { align-items: flex-start; margin-bottom: 14px; }
    .page-actions { width: 100%; }
    .page-actions > * { flex: 1; }
    .page-title { font-size: 28px; }
    .page-description { font-size: 13px; }
    .topbar { align-items: flex-start; flex-direction: column; }
    .topbar-center, .topbar-right { width: 100%; }
    .topbar-right > * { flex: 1; }
    .main-grid, .workbench, .tool-grid, .growth-grid, .charts-row, .profile-hero, .growth-hero, .error-page__card { grid-template-columns: 1fr; }
    .main-grid > *, .workbench__insight, .chart-card-full, .profile-promo-col { grid-column: auto; }
    .workbench { gap: 10px; }
    .workbench__context { order: 2; }
    .workbench__main { order: 1; padding: 16px 14px; }
    .workbench__insight { order: 3; }
    .metrics, .metric-strip { grid-template-columns: repeat(2,1fr); }
    .metric:nth-child(3), .metric-item:nth-child(3) { border-left: 0; border-top: 1px solid var(--border); }
    .metric:nth-child(4), .metric-item:nth-child(4) { border-top: 1px solid var(--border); }
    .review-tabs, .learn-tabs { overflow-x: auto; scroll-snap-type: x proximity; }
    .review-tab, .learn-tab { flex: 0 0 auto; scroll-snap-align: start; }
    .profile-hero, .growth-hero { text-align: center; }
    .profile-info-col { text-align: left; }
    .figure-ring-container { width: 132px; height: 132px; }
    .settings-row { grid-template-columns: 1fr; gap: 10px; }
    .shortcut-grid { grid-template-columns: 1fr 1fr; }
    .toast-stack { top: 64px; right: 12px; }
    .article-body { font-size: 16px; line-height: 1.78; }
    .modal-card { padding: 18px 14px; }
    .error-page { min-height: calc(100dvh - 122px); }
    .error-page__card { padding: 24px 18px; text-align: center; }
}

/* ===== 2026-08-22 首页三核心任务台 ===== */
.home-shell--focused { width: min(1480px, calc(100% - 2rem)); }
.home-intro--compact { grid-template-columns: minmax(0,1.4fr) minmax(260px,.6fr); align-items: end; padding-block: .85rem; }
.home-intro--compact h1 { font-size: clamp(2rem,3.4vw,3.7rem); white-space: nowrap; }
.home-intro__promise { max-width: 38ch; margin: 0 0 .25rem auto; color: var(--ink-2); font-size: .9rem; line-height: 1.65; }
.home-triad { display: grid; grid-template-columns: minmax(0,1.9fr) minmax(320px,.85fr); grid-template-rows: auto minmax(0,1fr); grid-template-areas: "vocab ai" "vocab rank"; gap: 1rem; align-items: stretch; }
.vocab-command { grid-area: vocab; min-width: 0; height: 100%; display: grid; grid-template-rows: auto minmax(0,1fr) auto; padding: clamp(1.4rem,3vw,2.6rem); border: 1px solid var(--border-strong); border-top: 6px solid var(--vermilion); background: var(--surface); box-shadow: var(--shadow-soft); }
.vocab-command__heading { display: flex; align-items: end; justify-content: space-between; gap: 1rem; padding-bottom: 1.1rem; border-bottom: 2px solid var(--indigo); }
.vocab-command__heading h2 { margin: 0; font: 700 clamp(2rem,3.4vw,3.8rem)/1 Georgia,"Microsoft YaHei UI",serif; letter-spacing: -.035em; }
.vocab-command__workspace { min-height: 0; display: grid; grid-template-columns: minmax(210px,.58fr) minmax(0,1.42fr); grid-template-rows: repeat(4,auto); column-gap: clamp(1.25rem,3vw,2.5rem); row-gap: 1rem; align-content: space-between; padding-block: 1.5rem; }
.vocab-command .task-book-cover { grid-column: 1; grid-row: 1/-1; width: 100%; height: 100%; min-height: 420px; margin: 0; }
.vocab-command__controls { grid-column: 2; grid-row: 1; min-width: 0; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 1rem; align-content: start; }
.vocab-command__controls .field-group { min-width: 0; }
.vocab-command__controls label { display: block; margin-bottom: .4rem; color: var(--ink-2); font-size: .78rem; font-weight: 700; }
.vocab-command__controls select { width: 100%; min-height: 48px; padding: .65rem .75rem; border: 1px solid var(--border-strong); background: var(--surface-strong); color: var(--ink); font: inherit; }
.vocab-command__book-summary { grid-column: 2; grid-row: 3; min-width: 0; }
.vocab-command__book-summary .wordbook-progress { margin: 0 0 .65rem; }
.vocab-command__book-summary .helper-text { margin-bottom: 0; }
.vocab-command__workspace .primary-actions { grid-column: 2; grid-row: 2; grid-template-columns: repeat(2,minmax(0,1fr)); margin: 0; }
.vocab-command__workspace .daily-progress-pair { grid-column: 2; grid-row: 4; align-self: end; }
.daily-progress-pair { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); margin: 0; border-block: 1px solid var(--border-strong); }
.daily-progress-pair article { min-width: 0; padding: 1.15rem clamp(.8rem,2vw,1.5rem); }
.daily-progress-pair article + article { border-left: 1px solid var(--border); }
.daily-progress-pair article > span { color: var(--ink-2); font-size: clamp(1rem,1.5vw,1.3rem); }
.daily-progress-pair article > div { display: flex; align-items: baseline; gap: .8rem; margin-top: .55rem; white-space: nowrap; }
.daily-progress-pair strong { color: var(--ink); font: 800 clamp(3.2rem,5.4vw,6rem)/.9 Georgia,serif; font-variant-numeric: tabular-nums; }
.daily-progress-pair small { color: var(--ink-3); font: 500 clamp(1.4rem,2.5vw,2.4rem)/1 Georgia,serif; font-variant-numeric: tabular-nums; }
.daily-progress-pair small b { font: inherit; }
.daily-progress-pair p { min-height: 1.4em; margin: .65rem 0 0; color: var(--ink-3); font-size: .76rem; }
.vocab-command__brief { display: grid; grid-template-columns: minmax(0,1.35fr) minmax(230px,.65fr); gap: 1rem; align-items: stretch; margin-top: 1.25rem; }
.vocab-command__facts { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); margin: 0; border: 1px solid var(--border); }
.vocab-command__facts div { display: flex; justify-content: space-between; gap: .7rem; padding: .7rem; }
.vocab-command__facts div:nth-child(even) { border-left: 1px solid var(--border); }
.vocab-command__facts div:nth-child(n+3) { border-top: 1px solid var(--border); }
.vocab-command__facts dt { color: var(--ink-3); font-size: .72rem; }
.vocab-command__facts dd { margin: 0; color: var(--indigo); font-weight: 800; font-variant-numeric: tabular-nums; }
.vocab-command .btn-large { min-height: 68px; align-items: flex-start; justify-content: center; flex-direction: column; padding-inline: 1.15rem; }
.home-triad > .ai-quick-chat { grid-area: ai; min-height: 0; }
.home-triad > .ai-quick-chat h2 { max-width: 18ch; margin: 0; font: 700 clamp(1.35rem,2vw,1.9rem)/1.15 Georgia,"Microsoft YaHei UI",serif; }
.home-triad > .ai-quick-chat .ai-chat-messages { max-height: 150px; }
.home-triad > .rank-card--summary { grid-area: rank; min-height: 0; display: flex; flex-direction: column; padding: 1.25rem; color: var(--ink); background: var(--surface); border: 1px solid var(--border); border-top: 5px solid var(--indigo); }
.home-triad > .rank-card--summary > .text-link { margin-top: auto; }
.rank-card--summary .eyebrow { color: var(--vermilion); }
.rank-card--summary h2 { color: var(--ink); font: 700 1.45rem/1.1 Georgia,"Microsoft YaHei UI",serif; }
.rank-card--summary .rank-stamp { color: var(--indigo); border-color: var(--indigo); }
.rank-summary__identity { display: grid; grid-template-columns: 132px minmax(0,1fr); gap: 1rem; align-items: center; padding-block: 1rem; border-block: 1px solid var(--border); }
.rank-summary__identity .rank-figure { width: 132px; height: 132px; }
.rank-summary__identity > div:last-child > strong,.rank-summary__identity > div:last-child > span { display: block; }
.rank-summary__identity > div:last-child > strong { color: var(--indigo); font: 700 2rem Georgia,"Microsoft YaHei UI",serif; }
.rank-summary__identity > div:last-child > span { margin-top: .3rem; color: var(--ink-3); font-size: .78rem; }
.rank-summary__identity p { margin: .75rem 0 0; color: var(--ink-2); font-size: .78rem; line-height: 1.65; }
.rank-card--summary .rank-card__progress { margin: 1rem 0; background: var(--paper-deep); }
.rank-summary__facts { margin: 0; }
.rank-summary__facts div { display: flex; justify-content: space-between; gap: 1rem; padding: .65rem 0; border-top: 1px solid var(--border); }
.rank-summary__facts dd { margin: 0; color: var(--indigo); font-weight: 800; }
.rank-card--summary .home-rank-advice { margin-block: .85rem; padding-block: .8rem; border-block: 1px solid var(--border); }
.rank-card--summary .home-rank-advice span { color: var(--vermilion); font-size: .7rem; font-weight: 800; }
.rank-card--summary .home-rank-advice p { margin: .4rem 0 0; color: var(--ink-2); line-height: 1.65; }

@media (max-width: 1199px) {
    .home-triad { grid-template-columns: repeat(2,minmax(0,1fr)); grid-template-rows: auto auto; grid-template-areas: "vocab vocab" "ai rank"; }
    .vocab-command { height: auto; grid-template-rows: auto auto auto; }
    .vocab-command__workspace { align-content: start; }
    .vocab-command .task-book-cover { min-height: 360px; }
}

@media (max-width: 767px) {
    .home-shell--focused { width: min(100% - 1rem,680px); margin-bottom: 6rem; }
    .home-intro--compact { display: none; }
    .home-triad { display: flex; flex-direction: column; }
    .vocab-command { order: 1; display: block; padding: 1rem; }
    .home-triad > .ai-quick-chat { order: 2; }
    .home-triad > .rank-card--summary { order: 3; }
    .vocab-command__heading { align-items: start; }
    .vocab-command__heading h2 { font-size: 1.8rem; }
    .vocab-command__workspace { grid-template-columns: minmax(72px,1fr) minmax(0,3fr); grid-template-rows: auto auto auto auto; gap: .75rem; align-content: start; padding-block: .8rem; }
    .vocab-command .task-book-cover { grid-column: 1; grid-row: 1; min-width: 0; min-height: 0; height: 100%; padding: .55rem; box-shadow: 5px 5px 0 var(--paper-deep); }
    .vocab-command .task-book-cover::before { inset: .35rem; }
    .vocab-command .task-book-cover::after { font-size: 2.7rem; }
    .vocab-command .task-book-cover > span { font-size: .58rem; }
    .vocab-command .task-book-cover strong { max-width: 5ch; font-size: .85rem; line-height: 1.15; }
    .vocab-command .task-book-cover small { max-width: 8ch; font-size: .44rem; letter-spacing: .08em; }
    .vocab-command .task-book-cover i { right: .55rem; width: 5px; height: 28px; }
    .vocab-command__controls { grid-column: 2; grid-row: 1; grid-template-columns: 1fr; gap: .6rem; }
    .vocab-command__controls label { margin-bottom: .25rem; }
    .vocab-command__controls select { min-height: 44px; padding: .5rem .6rem; }
    .vocab-command__workspace .primary-actions { grid-column: 1/-1; grid-row: 2; grid-template-columns: repeat(2,minmax(0,1fr)); gap: .55rem; }
    .vocab-command__workspace .primary-actions .btn { min-width: 0; min-height: 56px; padding: .6rem .7rem; }
    .vocab-command__workspace .primary-actions .btn b { font-size: .9rem; white-space: nowrap; }
    .vocab-command__workspace .primary-actions .btn span { font-size: .62rem; }
    .vocab-command__book-summary { grid-column: 1/-1; grid-row: 3; }
    .vocab-command__book-summary .helper-text { display: none; }
    .vocab-command__workspace .daily-progress-pair { grid-column: 1/-1; grid-row: 4; }
    .daily-progress-pair article { padding: 1rem .75rem; }
    .daily-progress-pair strong { font-size: clamp(3.3rem,18vw,5rem); }
    .daily-progress-pair small { font-size: clamp(1.35rem,7vw,2rem); }
    .daily-progress-pair article > div { gap: .35rem; }
    .daily-progress-pair p { font-size: .7rem; }
    .vocab-command__brief { grid-template-columns: 1fr; }
    .vocab-command .btn-large { min-height: 62px; }
    .home-triad > .ai-quick-chat,.home-triad > .rank-card--summary { width: 100%; }
    .rank-summary__identity { grid-template-columns: 112px minmax(0,1fr); }
    .rank-summary__identity .rank-figure { width: 112px; height: 112px; }
}

/* 桌面首页：背词与段位形成一个紧凑任务组，AI 贯穿右栏。 */
@media (min-width: 1200px) {
    .home-triad {
        grid-template-rows: auto auto;
        grid-template-areas: "vocab ai" "rank ai";
        column-gap: 1rem;
        row-gap: 0;
    }
    .vocab-command {
        height: auto;
        grid-template-rows: auto auto auto;
        padding: clamp(1.35rem,2.25vw,2rem);
        box-shadow: none;
    }
    .vocab-command__workspace {
        grid-template-columns: minmax(190px,.52fr) minmax(0,1.48fr);
        row-gap: .75rem;
        align-content: start;
        padding-block: 1.15rem;
    }
    .vocab-command .task-book-cover { min-height: 330px; }
    .vocab-command__brief { margin-top: .9rem; }

    .home-triad > .rank-card--summary {
        display: grid;
        grid-template-columns: minmax(135px,.58fr) minmax(245px,1.05fr) minmax(250px,1.15fr) auto;
        grid-template-areas: "rank-heading rank-identity rank-facts rank-link" "rank-progress rank-progress rank-progress rank-progress";
        gap: .55rem 1.25rem;
        align-items: center;
        padding: .9rem 1.35rem 1rem;
        border-top: 0;
        box-shadow: var(--shadow-soft);
    }
    .home-triad > .rank-card--summary .rank-card__heading { grid-area: rank-heading; }
    .home-triad > .rank-card--summary .rank-card__heading h2 { display: none; }
    .home-triad > .rank-card--summary .rank-summary__identity {
        grid-area: rank-identity;
        display: grid;
        grid-template-columns: 76px minmax(0,1fr);
        gap: .7rem;
        align-items: center;
        padding: 0;
        border: 0;
    }
    .home-triad > .rank-card--summary .rank-summary__identity p,
    .home-triad > .rank-card--summary .home-rank-advice { display: none; }
    .home-triad > .rank-card--summary .rank-figure { display: grid; width: 76px; height: 76px; }
    .home-triad > .rank-card--summary .rank-summary__identity > div:last-child > strong { font-size: 1.45rem; }
    .home-triad > .rank-card--summary .rank-summary__facts {
        grid-area: rank-facts;
        display: grid;
        grid-template-columns: repeat(2,minmax(0,1fr));
    }
    .home-triad > .rank-card--summary .rank-summary__facts div { padding: .25rem .75rem; border: 0; }
    .home-triad > .rank-card--summary .rank-summary__facts div + div { border-left: 1px solid var(--border); }
    .home-triad > .rank-card--summary .rank-card__progress { grid-area: rank-progress; margin: 0; }
    .home-triad > .rank-card--summary > .text-link { grid-area: rank-link; margin: 0; white-space: nowrap; }

    .home-triad > .ai-quick-chat {
        display: flex;
        flex-direction: column;
        min-height: 0;
    }
    .home-triad > .ai-quick-chat .ai-chat-messages {
        flex: 1 1 auto;
        min-height: 190px;
        max-height: none;
    }
}

/* Learn overview and settings */
.plan-board { display: grid; grid-template-columns: 1.35fr .8fr .9fr; border: 1px solid var(--border-strong); background: var(--surface); }.plan-board article { min-width: 0; padding: clamp(1rem,2.5vw,2rem); }.plan-board article + article { border-left: 1px solid var(--border); }.plan-board__primary { color: var(--on-action); background: var(--action-bg); }.plan-board__primary .eyebrow { color: #f2b9aa; }.plan-board h2 { margin: 0 0 1rem; }.plan-modules { display: grid; grid-template-columns: repeat(4,1fr); gap: .5rem; margin: .4rem 0 1.1rem; }.plan-modules > div { padding: .7rem .4rem; border-top: 1px solid rgba(255,255,255,.35); border-left: 1px solid rgba(255,255,255,.18); background: rgba(255,255,255,.06); }.plan-modules strong { display: block; font: 700 clamp(1.3rem,2.2vw,1.9rem)/1 Georgia,serif; font-variant-numeric: tabular-nums; }.plan-modules span { display: block; margin-top: .15rem; color: #c9ccdb; font-size: .72rem; }.plan-facts { margin: 0; }.plan-facts div { display: flex; justify-content: space-between; padding: .75rem 0; border-top: 1px solid var(--border); }.plan-facts dd { margin: 0; }
.training-directory { padding: 1.25rem; border: 1px solid var(--border); background: var(--surface); }.training-directory > .section-heading > p { color: var(--ink-3); }.training-directory__grid { display: grid; grid-template-columns: repeat(4,1fr); margin-top: 1rem; border-top: 1px solid var(--border); border-left: 1px solid var(--border); }.training-directory__grid a { min-height: 190px; padding: 1.25rem; border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); }.training-directory__grid span { color: var(--vermilion); font-size: .68rem; font-weight: 800; letter-spacing: .12em; }.training-directory__grid h3 { margin: .6rem 0; font: 700 1.5rem Georgia,"Microsoft YaHei UI",serif; }.training-directory__grid p { color: var(--ink-2); }.training-directory__grid b { color: var(--ink-3); font-size: .72rem; }.training-directory__grid a:hover { background: var(--indigo-soft); }
.training-difficulty { padding: 1.25rem; border: 1px solid var(--border); background: var(--surface); }.training-difficulty > .section-heading > p { color: var(--ink-2); }.difficulty-fieldset { min-width: 0; margin: 0; padding: 0; border: 0; }.difficulty-grid { display: grid; grid-template-columns: repeat(6,1fr); gap: .6rem; margin-top: 1rem; }.difficulty-option { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .2rem; min-height: 96px; padding: .8rem .4rem; border: 1px solid var(--border-strong); background: var(--paper); cursor: pointer; text-align: center; transition: border-color var(--speed-fast), background var(--speed-fast), transform var(--speed-fast) var(--ease-out), box-shadow var(--speed-fast); }.difficulty-option:hover { transform: translateY(-2px); border-color: var(--indigo); }.difficulty-option input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }.difficulty-option:focus-within { outline: 3px solid var(--vermilion); outline-offset: 2px; }.difficulty-option:has(input:checked) { border-color: var(--indigo); background: var(--indigo-soft); box-shadow: inset 0 0 0 1px var(--indigo); }.difficulty-option__name { font-size: .84rem; font-weight: 800; color: var(--ink); }.difficulty-option__stars { color: var(--vermilion); font-size: .8rem; letter-spacing: .04em; }.difficulty-actions { display: flex; flex-wrap: wrap; align-items: center; gap: .8rem 1rem; margin-top: 1rem; }.difficulty-actions .muted { margin: 0; }.settings-layout { display: grid; grid-template-columns: 200px minmax(0,1fr); gap: 1rem; }.settings-index { position: sticky; top: 88px; align-self: start; border-top: 2px solid var(--indigo); }.settings-index a { display: block; min-height: 44px; padding: .7rem .5rem; border-bottom: 1px solid var(--border); color: var(--ink-2); }.settings-index a:hover { color: var(--vermilion); }.settings-content { border-top: 2px solid var(--indigo); }.settings-section { display: grid; grid-template-columns: minmax(220px,.8fr) minmax(320px,1.2fr); gap: 2rem; padding: 1.5rem 1rem; border-bottom: 1px solid var(--border); background: var(--surface); }.settings-section h2 { margin: 0; }.settings-section > div > p:last-child { color: var(--ink-2); }.setting-control { display: grid; grid-template-columns: 1fr auto; gap: .6rem; align-content: start; }.setting-control label,.setting-control small { grid-column: 1/-1; }.setting-control select { min-height: 46px; padding: .6rem; border: 1px solid var(--border-strong); background: var(--surface-strong); }.wordbook-list article,.tool-links a { display: flex; justify-content: space-between; gap: 1rem; padding: .8rem 0; border-top: 1px solid var(--border); }.wordbook-list p,.tool-links span { margin: .2rem 0 0; color: var(--ink-3); font-size: .75rem; }
/* 词库概览（2026-08-16）：单列全宽 section + 自适应网格，对齐站内 section-heading 范式 */
.settings-section--wordbooks { grid-template-columns: 1fr; gap: 1rem; }
.settings-section--wordbooks .section-heading { padding-bottom: .8rem; border-bottom: 1px solid var(--border); }
.wb-card-title { display: flex; align-items: center; gap: .45rem; flex-wrap: wrap; min-width: 0; }
.wb-card-title strong { color: var(--indigo); font-size: 1rem; overflow-wrap: anywhere; }
.wb-current { padding: 1px 8px; border-radius: 999px; background: var(--action-bg); color: var(--on-action); font-size: .68rem; font-weight: 700; flex: 0 0 auto; }
.wb-card-desc { margin: 0 0 .9rem; color: var(--ink-3); font-size: .75rem; line-height: 1.5; overflow-wrap: anywhere; }
.wb-progress { height: 8px; margin-bottom: .7rem; background: var(--paper-deep); border-radius: 4px; overflow: hidden; }
.wb-progress span { display: block; height: 100%; background: var(--accent-bg); border-radius: 4px; }
.wb-status-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: .35rem; color: var(--ink-3); font-size: .72rem; margin-bottom: .9rem; }
.wb-status-row span { min-width: 0; overflow-wrap: anywhere; }
.wb-status-row b { color: var(--indigo); font-variant-numeric: tabular-nums; }
.wb-actions { display: flex; gap: .5rem; margin-top: auto; }
.btn-sm { min-height: 30px; padding: .3rem .8rem; font-size: .78rem; }
.wb-modal { width: min(760px, 100%); }
.wb-modal .modal-header { margin-bottom: 12px; }
.wb-modal-title { margin: 0; font-size: 1.05rem; color: var(--indigo); }
.wb-modal-search { margin-bottom: 12px; }
.wb-modal-search .spelling-input { width: 100%; }
.wb-modal-body { max-height: 60dvh; overflow-y: auto; padding-right: 4px; }
/* 单词行：仿批次反馈页卡片，纸墨风格 */
.wb-word-list { display: grid; gap: 8px; }
.wb-word-row {
    display: grid;
    grid-template-columns: minmax(140px, auto) 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: var(--surface-strong);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}
.wb-word-row:hover { border-color: var(--indigo); background: var(--indigo-soft); }
.wb-word-main { display: flex; flex-direction: column; gap: 2px; }
.wb-word-en { font-family: Georgia, "Times New Roman", serif; font-size: 17px; font-weight: 700; color: var(--indigo); line-height: 1.2; }
.wb-word-phonetic { color: var(--ink-3); font-size: 12px; font-family: Georgia, serif; }
.wb-word-meaning { color: var(--ink-2); font-size: 13px; line-height: 1.5; margin: 0; }
.wb-status { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 700; color: var(--ink-2); background: var(--indigo-soft); white-space: nowrap; }
.wb-status--mastered { color: var(--on-action); background: var(--action-bg); }
.wb-status--new { color: var(--ink-3); background: transparent; border: 1px solid var(--border); }
.wb-count-note { margin-top: 10px; text-align: right; }

/* 词书目录：默认收起的编辑式手风琴与本地生成封面 */
.wb-accordion { border-top: 2px solid var(--indigo); }
.wb-accordion .wb-card { min-width: 0; padding: 0; border: 0; border-bottom: 1px solid var(--border-strong); border-radius: 0; background: var(--surface); box-shadow: none; }
.wb-accordion .wb-card--current { border-top: 0; background: var(--paper); }
.wb-accordion .wb-card--fav { border-left: 0; }
.wb-accordion .wb-card--fav .wb-card-title strong::before { content: none; }
.wb-accordion__trigger { width: 100%; min-height: 132px; display: grid; grid-template-columns: 78px minmax(0,1fr) auto; gap: 1.15rem; align-items: center; padding: 14px 18px; border: 0; background: transparent; color: var(--ink); text-align: left; cursor: pointer; }
.wb-accordion__trigger:hover { background: var(--paper); }
.wb-accordion__trigger:focus-visible { position: relative; z-index: 1; outline: 3px solid var(--vermilion); outline-offset: -3px; }
.wb-cover { width: 78px; aspect-ratio: .72; display: grid; grid-template-rows: auto 1fr auto; padding: 9px 8px; color: var(--on-action); background: var(--action-bg); border: 1px solid var(--indigo-deep); box-shadow: 6px 6px 0 var(--paper-deep); }
.wb-cover > span { padding-bottom: 5px; border-bottom: 2px solid #f2b9aa; color: #f2b9aa; font: 700 11px Georgia,serif; letter-spacing: .06em; }
.wb-cover strong { align-self: center; color: var(--on-action); font-size: 13px; line-height: 1.25; }
.wb-cover small { color: #d9dbea; font: 600 7px/1.2 Georgia,sans-serif; letter-spacing: .06em; }
.wb-cover--fav { color: var(--indigo); background: var(--paper); border-color: var(--vermilion); box-shadow: 6px 6px 0 var(--vermilion-soft); }
.wb-cover--fav strong { color: var(--indigo); }.wb-cover--fav small { color: var(--ink-3); }
.wb-card-summary { min-width: 0; display: grid; gap: .45rem; }
.wb-accordion .wb-card-title strong { color: var(--indigo); font-size: 1.08rem; }
.wb-accordion .wb-card-desc { margin: 0; color: var(--ink-3); font-size: .78rem; line-height: 1.55; }
.wb-accordion .wb-progress { width: min(520px,100%); height: 7px; margin: .15rem 0 0; border-radius: 0; }
.wb-accordion .wb-progress span { border-radius: 0; }
.wb-card-measure { min-width: 76px; display: grid; grid-template-columns: auto auto; justify-content: end; align-items: baseline; gap: 3px; color: var(--vermilion); text-align: right; }
.wb-card-measure strong { font: 700 1.35rem Georgia,serif; font-variant-numeric: tabular-nums; }.wb-card-measure small { font-size: .7rem; }
.wb-chevron { grid-column: 1/-1; justify-self: end; width: 12px; height: 12px; margin-top: 12px; background: var(--action-bg); clip-path: polygon(0 0,100% 50%,0 100%,0 70%,55% 50%,0 30%); rotate: 90deg; transition: rotate var(--speed-fast) var(--ease-out); }
.wb-accordion__trigger[aria-expanded="true"] .wb-chevron { rotate: -90deg; }
.wb-accordion__panel { padding: 0 18px 18px 114px; }
.wb-accordion__panel[hidden] { display: none; }
.wb-accordion .wb-status-row { margin-bottom: .9rem; padding-top: .9rem; border-top: 1px solid var(--border); font-size: .75rem; }
.wb-accordion .wb-actions { flex-wrap: wrap; align-items: center; }
.wb-current-note { color: var(--ink-3); font-size: .75rem; }
.wb-preview-empty { padding: 2rem 1rem; }

@media (max-width: 767px) {
    .wb-accordion__trigger { min-height: 116px; grid-template-columns: 60px minmax(0,1fr) auto; gap: .85rem; padding: 12px; }
    .wb-cover { width: 60px; padding: 7px 6px; box-shadow: 4px 4px 0 var(--paper-deep); }
    .wb-cover > span { font-size: 9px; }.wb-cover strong { font-size: 11px; }.wb-cover small { font-size: 6px; }
    .wb-card-measure { min-width: 48px; }.wb-card-measure strong { font-size: 1rem; }
    .wb-card-desc { display: -webkit-box; overflow: hidden; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
    .wb-accordion__panel { padding: 0 12px 14px; }
    .wb-accordion .wb-status-row { grid-template-columns: repeat(2,1fr); gap: .65rem; }
    .wb-accordion .wb-actions .btn { min-height: 44px; flex: 1; }
}
.tool-links { display: grid; }.service-status { display: flex; gap: .8rem; align-items: start; padding: 1rem; border: 1px solid var(--border); background: var(--paper); }.service-status .status-dot { margin-top: .4rem; background: var(--warning); }.service-status.is-ready .status-dot { background: var(--action-bg); }.service-status p,.local-note p { margin-bottom: 0; color: var(--ink-2); }.local-note { padding: 1rem; border-top: 3px solid var(--vermilion); background: var(--paper); }
@media (max-width: 1199px) { .plan-board { grid-template-columns: 1.3fr 1fr; }.plan-board article:last-child { grid-column: 1/-1; border-top: 1px solid var(--border); border-left: 0; }.training-directory__grid { grid-template-columns: repeat(2,1fr); }.difficulty-grid { grid-template-columns: repeat(3,1fr); } }
@media (max-width: 767px) { .plan-board,.training-directory__grid,.settings-layout,.settings-section { grid-template-columns: 1fr; }.plan-board article + article { border-top: 1px solid var(--border); border-left: 0; }.plan-board article:last-child { grid-column: auto; }.plan-modules { grid-template-columns: repeat(2,1fr); }.training-directory__grid a { min-height: 160px; }.training-directory > .section-heading { align-items: start; flex-direction: column; }.grammar-directory > .section-heading { align-items: flex-start; flex-direction: column; gap: .4rem; }.section-heading__aside { align-items: flex-start; text-align: left; }.difficulty-grid { grid-template-columns: 1fr; }.difficulty-actions { flex-direction: column; align-items: stretch; }.difficulty-actions .btn { width: 100%; }.settings-index { position: static; display: grid; grid-template-columns: repeat(2,1fr); }.settings-section { gap: .8rem; padding: 1.2rem .8rem; }.setting-control { grid-template-columns: 1fr; }.setting-control label,.setting-control small { grid-column: auto; } }

.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.subheading { margin: 1.5rem 0 .7rem; padding-top: .8rem; border-top: 1px solid var(--border); font-size: 1rem; }.work-textarea { width: 100%; min-height: 220px; padding: .8rem; resize: vertical; border: 1px solid var(--border-strong); background: var(--surface-strong); line-height: 1.65; }.work-textarea--large { min-height: 56dvh; }.file-field { display: grid; gap: .4rem; margin: .8rem 0; padding: .7rem; border: 1px dashed var(--border-strong); color: var(--ink-2); }.file-field input { width: 100%; }.editor-actions { display: flex; flex-wrap: wrap; gap: .7rem; align-items: center; margin-top: .8rem; }.editor-actions .file-field { margin: 0; }.selection-list { min-height: 120px; max-height: 42dvh; margin-bottom: .8rem; overflow: auto; padding: .7rem; border: 1px solid var(--border); background: var(--paper); color: var(--ink-2); }.review-tabs--horizontal { display: flex; gap: .5rem; margin: 1rem 0; }.review-tabs--horizontal .review-tab { min-height: 44px; }.chart--compact { height: 200px; }.modal-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1rem; }.icon-button { width: 44px; height: 44px; border: 1px solid var(--border); background: var(--surface); font-size: 1.25rem; }
@media (max-width: 767px) { .work-textarea--large { min-height: 42dvh; }.focus-shell--reading .focus-context { order: 0; }.focus-shell--reading .focus-stage { order: 1; }.focus-shell--reading .focus-insight { order: 2; } }

/* Homepage refinement: richer rank, stronger actions, aligned columns */
.home-intro blockquote p { font-size: clamp(1.15rem, 1.35vw, 1.45rem); line-height: 1.35; }
.home-intro cite { margin-top: .5rem; font-size: .8rem; }
.home-workbench { grid-template-columns: minmax(250px,.72fr) minmax(500px,1.55fr) minmax(370px,1.04fr); align-items: stretch; }
.home-rail,.home-center { height: 100%; align-content: stretch; }
.home-rail--left { grid-template-rows: minmax(0,1fr) auto; }
.home-center { grid-template-rows: auto auto minmax(0,1fr); }
.home-rail--right { grid-template-rows: minmax(0,1fr) auto; }
.home-chart--heatmap { height: 290px; }

.task-core { padding: 1.4rem 1.55rem 1.55rem; }
.task-core__body { display: grid; grid-template-columns: minmax(145px,.42fr) minmax(0,1.58fr); gap: 1.5rem; align-items: stretch; margin-top: 1.15rem; }
.task-book-cover { position: relative; isolation: isolate; min-height: 230px; display: flex; flex-direction: column; justify-content: space-between; overflow: hidden; padding: 1rem; color: #fffaf1; background: var(--action-bg); border: 1px solid var(--indigo-deep); box-shadow: 8px 8px 0 var(--paper-deep); }
.task-book-cover::before { content: ""; position: absolute; z-index: -1; inset: .55rem; border: 1px solid rgba(255,250,241,.38); }
.task-book-cover::after { content: "CET"; position: absolute; z-index: -1; right: -.18em; bottom: -.3em; color: rgba(255,250,241,.08); font: 700 5.2rem/1 Georgia,serif; }
.task-book-cover > span { align-self: start; padding-bottom: .35rem; border-bottom: 2px solid #f0b3a5; color: #f0b3a5; font: 700 .72rem Georgia,serif; letter-spacing: .16em; }
.task-book-cover strong { max-width: 8ch; font: 700 clamp(1.35rem,2vw,2rem)/1.15 Georgia,"Microsoft YaHei UI",serif; text-wrap: balance; }
.task-book-cover small { max-width: 14ch; color: #d8dbea; font-size: .58rem; letter-spacing: .12em; }
.task-book-cover i { position: absolute; top: 0; right: 1rem; width: 8px; height: 45px; background: var(--accent-bg); }
.task-plan { display: flex; min-width: 0; flex-direction: column; }
.task-numbers { margin: .2rem 0 .85rem; border-block: 1px solid var(--border); }
.task-numbers div { padding: .8rem .7rem; }
.task-numbers strong { font-size: clamp(2rem,3vw,3.25rem); }
.task-numbers span { font-size: .72rem; }
.task-explanation { margin: 0 0 .9rem; }
.primary-actions { margin-top: auto; grid-template-columns: 1.35fr 1fr; }
.primary-actions .btn { min-height: 64px; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; padding: .75rem 1rem; }
.primary-actions .btn b { font-size: 1rem; }
.primary-actions .btn span { margin-top: .1rem; font-size: .68rem; font-weight: 400; opacity: .78; }
.btn-review { color: var(--on-action); background: var(--accent-bg); }
.btn-review:hover { color: var(--on-action); background: var(--vermilion-deep); transform: translateY(-2px); }

.outcome-training-grid { display: grid; grid-template-columns: minmax(0,1.25fr) minmax(210px,.75fr); gap: 1rem; align-items: stretch; margin-top: .5rem; }
.achievement-plot { min-width: 0; }
.training-links--embedded { padding: 0; border: 0; border-left: 1px solid var(--border); background: transparent; }
.training-links--embedded a { padding-left: 1rem; }

.rank-card { min-height: 630px; display: flex; flex-direction: column; color: var(--ink); background: var(--surface); border-top: 5px solid var(--indigo); }
.rank-card .eyebrow { color: var(--vermilion); }
.rank-card__heading { display: flex; align-items: start; justify-content: space-between; gap: 1rem; padding-bottom: .8rem; border-bottom: 1px solid var(--border); }
.rank-card__heading h2 { margin: 0; color: var(--ink); font: 700 1.3rem Georgia,"Microsoft YaHei UI",serif; }
.rank-card .rank-stamp { color: var(--indigo); border-color: var(--indigo); }
.rank-card__profile { display: grid; grid-template-columns: minmax(150px,1fr) minmax(145px,.92fr); gap: .9rem; margin-top: 1rem; }
.rank-portrait { min-width: 0; text-align: center; }
.rank-figure { position: relative; width: min(100%,180px); aspect-ratio: 1; margin: 0 auto; display: grid; place-items: center; overflow: hidden; border-radius: 50%; background: var(--paper); }
.rank-ring { position: absolute; z-index: 2; inset: 0; width: 100%; height: 100%; transform: rotate(-90deg); }
.rank-ring circle { fill: none; stroke: var(--paper-deep); stroke-width: 7; }
.rank-ring .rank-ring__progress { stroke: var(--vermilion); stroke-linecap: butt; stroke-dasharray: 351.86; stroke-dashoffset: 351.86; transition: stroke-dashoffset .55s var(--ease-out); }
.rank-portrait-image { display: block; opacity: 0; transition: opacity .28s var(--ease-out), transform .55s var(--ease-out), clip-path .55s var(--ease-out); }
.rank-portrait-image.is-revealed { opacity: 1; transform: translateY(0); clip-path: inset(0); }
.rank-portrait-image--home { position: absolute; z-index: 1; left: 50%; bottom: 8%; width: 82%; height: 82%; object-fit: contain; object-position: center bottom; border: 0; border-radius: 0; clip-path: none; transform: translateX(-50%); }
.rank-portrait-image--home.is-revealed { transform: translateX(-50%); clip-path: none; }
.rank-figure.is-image-missing::after,.rank-legacy-figure.is-image-missing::after { content: "段"; position: absolute; inset: 0; display: grid; place-items: center; color: var(--indigo); font: 700 2rem Georgia,"Microsoft YaHei UI",serif; }
.rank-portrait__name strong { display: block; margin-top: .3rem; color: var(--indigo); font: 700 1.85rem Georgia,"Microsoft YaHei UI",serif; }
.rank-portrait__name span { color: var(--ink-3); font-size: .72rem; }
.rank-ladder-wrap > p { margin: 0 0 .35rem; color: var(--ink-3); font-size: .65rem; }
.rank-ladder { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--border); }
.rank-ladder button { position: relative; width: 100%; min-height: 28px; display: flex; align-items: center; gap: .5rem; padding: .2rem .25rem; color: var(--ink-3); background: transparent; border-bottom: 1px solid var(--border); text-align: left; font-size: .72rem; transition: color var(--speed-fast), background var(--speed-fast), transform var(--speed-fast); }
.rank-ladder button span { width: 1.25rem; color: var(--border-strong); font: 700 .65rem Georgia,serif; }
.rank-ladder button:hover,.rank-ladder button:focus-visible { color: var(--indigo); background: var(--indigo-soft); transform: translateX(.3rem); }
.rank-ladder button.is-passed { color: var(--ink-2); }
.rank-ladder button.is-current { color: var(--on-action); background: var(--action-bg); font-weight: 800; }
.rank-ladder button.is-current span { color: #f0b3a5; }
.rank-hover-detail { min-height: 78px; margin: 1rem 0 .8rem; padding: .75rem; color: var(--ink); background: var(--paper); border: 1px solid var(--border); }
.rank-hover-detail strong { color: var(--indigo); }
.rank-hover-detail p { margin: .25rem 0 0; color: var(--ink-2); font-size: .72rem; line-height: 1.5; }
.rank-card .rank-card__progress { margin: auto 0 .4rem; background: var(--paper-deep); }
.rank-card .rail-facts div { border-color: var(--border); }
.rank-card .text-link { color: var(--indigo); }
.rank-card .ability-mini { background: var(--border); }
.rank-card .ability-mini div { background: var(--surface); }
.rank-card .ability-mini span { color: var(--ink-3); }

@media (max-width: 1199px) {
    .home-workbench { grid-template-columns: minmax(240px,.72fr) minmax(470px,1.28fr); }
    .home-rail--right { grid-column: 1/-1; display: grid; grid-template-columns: minmax(0,1.25fr) minmax(300px,.75fr); grid-template-rows: 1fr; }
    .rank-card { min-height: 600px; }
}
@media (max-width: 767px) {
    .home-intro blockquote { display: none; }
    .task-core__body { grid-template-columns: 108px minmax(0,1fr); gap: .9rem; }
    .task-book-cover { min-height: 210px; padding: .75rem; box-shadow: 5px 5px 0 var(--paper-deep); }
    .task-book-cover strong { font-size: 1.1rem; }
    .task-numbers { grid-template-columns: repeat(3,1fr); }
    .task-numbers strong { font-size: 1.7rem; }
    .task-numbers span { font-size: .62rem; }
    .task-explanation { font-size: .72rem; }
    .primary-actions { grid-template-columns: 1fr; }
    .primary-actions .btn { min-height: 56px; }
    .primary-actions .btn-primary { display: flex; }
    .mobile-primary-action { display: none; }
    .outcome-training-grid { grid-template-columns: 1fr; }
    .training-links--embedded { border-top: 1px solid var(--border); border-left: 0; }
    .training-links--embedded a { padding-left: 0; }
    .rank-card { min-height: 0; }
    .rank-card__profile { grid-template-columns: 1fr 1fr; }
    .rank-figure { width: 150px; }
    .home-chart--heatmap { height: 300px; }
}
@media (max-width: 390px) {
    .task-core__body { grid-template-columns: 1fr; }
    .task-book-cover { min-height: 160px; }
    .task-book-cover strong { max-width: 12ch; }
}

/* Homepage: central task core with two information rails */
.home-shell { width: min(1480px, calc(100% - 2rem)); margin: 0 auto 2rem; }
.home-intro { display: grid; grid-template-columns: 1.2fr .8fr; gap: 2rem; align-items: end; padding: 1rem 0 .8rem; border-bottom: 2px solid var(--indigo); }
.home-intro h1 { margin: 0; font: 700 clamp(2rem,4vw,4.4rem)/1 Georgia,"Microsoft YaHei UI",serif; letter-spacing: -.045em; }.home-intro blockquote { margin: 0; padding-top: .65rem; border-top: 2px solid var(--vermilion); color: var(--ink-2); }.home-intro blockquote p { margin: 0; font: italic 1rem/1.45 Georgia,serif; }.home-intro cite { display: block; margin-top: .35rem; font-size: .72rem; font-style: normal; }
.home-metrics { grid-column: 1/-1; display: grid; grid-template-columns: repeat(4,1fr); margin: 0; border: 1px solid var(--border-strong); background: var(--surface); }.home-metrics article { display: grid; grid-template-columns: 1fr auto; padding: .8rem 1rem; }.home-metrics article + article { border-left: 1px solid var(--border); }.home-metrics span,.home-metrics small { color: var(--ink-3); }.home-metrics strong { grid-row: span 2; color: var(--indigo); font: 700 2rem/1 Georgia,serif; font-variant-numeric: tabular-nums; }.home-metrics small { font-size: .68rem; }
.home-workbench { display: grid; grid-template-columns: minmax(230px,.76fr) minmax(440px,1.5fr) minmax(260px,.86fr); gap: .8rem; align-items: start; }.home-rail,.task-core,.home-center { min-width: 0; }.home-rail,.home-center { display: grid; gap: .8rem; }.rail-section,.rank-card,.training-links,.task-core,.wordbook-panel,.core-achievement { padding: 1rem; border: 1px solid var(--border); background: var(--surface); }.rail-section h2,.rank-card h2,.training-links h2 { margin: 0; font-size: 1rem; }
.home-chart { height: 190px; }.home-chart--heatmap { height: 165px; }.field-label { display: block; margin: 1rem 0 .35rem; color: var(--ink-3); font-size: .75rem; }.inline-setting { display: grid; grid-template-columns: 1fr auto; gap: .5rem; }.inline-setting select,.wordbook-panel select { min-height: 44px; padding: .55rem .7rem; border: 1px solid var(--border-strong); background: var(--surface-strong); }.rail-facts { margin: 1rem 0 0; }.rail-facts div { display: flex; justify-content: space-between; gap: 1rem; padding: .55rem 0; border-top: 1px solid var(--border); }.rail-facts dd { margin: 0; font-weight: 800; font-variant-numeric: tabular-nums; }.helper-text { color: var(--ink-3); font-size: .72rem; }
.task-core { position: relative; padding: clamp(1.25rem,2.5vw,2.3rem); border-top: 5px solid var(--vermilion); box-shadow: var(--shadow-soft); }.task-core__heading { display: flex; align-items: end; justify-content: space-between; border-bottom: 1px solid var(--border); padding-bottom: 1rem; }.task-core__heading h2 { margin: 0; font: 700 clamp(1.8rem,3vw,3rem)/1 Georgia,"Microsoft YaHei UI",serif; }.task-date { color: var(--ink-3); font-size: .75rem; }.task-numbers { display: grid; grid-template-columns: repeat(3,1fr); margin: 1.25rem 0; }.task-numbers div { padding: .4rem 1rem; }.task-numbers div + div { border-left: 1px solid var(--border); }.task-numbers strong { display: block; color: var(--indigo); font: 700 clamp(2.5rem,5vw,5rem)/.9 Georgia,serif; font-variant-numeric: tabular-nums; }.task-numbers span { color: var(--ink-3); font-size: .75rem; }.task-explanation { padding: .75rem; border-top: 2px solid var(--indigo); background: var(--paper); color: var(--ink-2); }.primary-actions { display: grid; grid-template-columns: 1.5fr 1fr; gap: .65rem; margin: 1rem 0 0; }.btn-large { min-height: 54px; font-size: 1rem; }.wordbook-panel h3,.core-achievement h3 { margin: 0; }.wordbook-panel .section-heading { align-items: center; }.wordbook-panel select { max-width: 190px; }.wordbook-progress { height: 9px; margin: 1rem 0 .6rem; background: var(--paper-deep); }.wordbook-progress span { display: block; width: 0; height: 100%; background: var(--accent-bg); }.wordbook-status { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem; color: var(--ink-3); font-size: .72rem; }
.rank-card { background: var(--action-bg); color: var(--on-action); }.rank-card .eyebrow { color: #f2b9aa; }.rank-card__top { display: grid; grid-template-columns: auto 1fr; gap: .8rem; align-items: start; }.rank-card h2 { font: 700 2rem Georgia,serif; }.rank-card p { margin: .15rem 0; color: #d9dbea; }.rank-stamp { padding: .35rem .5rem; border: 1px solid rgba(255,255,255,.55); font-variant-numeric: tabular-nums; }.rank-card__progress { height: 7px; margin: .9rem 0; background: rgba(255,255,255,.15); }.rank-card__progress span { display: block; height: 100%; width: 0; background: #f2b9aa; }.rank-card .rail-facts div { border-color: rgba(255,255,255,.18); }.rank-card .text-link { color: var(--on-action); }.ability-mini { display: grid; grid-template-columns: repeat(5,1fr); gap: 1px; margin: .8rem 0; background: rgba(255,255,255,.15); }.ability-mini div { padding: .45rem .2rem; text-align: center; background: var(--action-bg); }.ability-mini span,.ability-mini b { display: block; }.ability-mini span { color: #c8cada; font-size: .62rem; }
.training-links a { position: relative; display: grid; grid-template-columns: 1fr auto; gap: 0 .7rem; min-height: 58px; padding: .75rem 2.3rem .75rem 0; border-top: 1px solid var(--border); }.training-links a:hover b { color: var(--vermilion); }.training-links b { font-size: .9rem; }.training-links span { grid-column: 1; color: var(--ink-3); font-size: .68rem; }.training-links i { position: absolute; right: .1rem; top: 50%; translate: 0 -50%; color: var(--border-strong); font: 700 1.6rem Georgia,serif; }.mobile-primary-action { display: none; }

@media (max-width: 1199px) {
    .home-workbench { grid-template-columns: minmax(230px,.7fr) minmax(420px,1.3fr); }.home-rail--right { grid-column: 1/-1; grid-template-columns: 1.1fr 1fr 1fr; }.home-rail--right > * { min-width: 0; }
}
@media (max-width: 767px) {
    .home-shell { width: min(100% - 1rem,680px); margin-bottom: 7rem; }.home-intro { grid-template-columns: 1fr; gap: .8rem; }.home-intro blockquote { display: none; }.home-intro h1 { font-size: 2.35rem; }
    .home-metrics { grid-template-columns: repeat(2,1fr); order: 2; }.home-metrics article:nth-child(3) { border-left: 0; }.home-metrics article:nth-child(n+3) { border-top: 1px solid var(--border); }
    .home-workbench { display: flex; flex-direction: column; align-items: stretch; }.home-center,.home-rail--left,.home-rail--right { display: contents; }.home-workbench > *, .home-center > *, .home-rail > * { width: 100%; }.task-core { order: 1; padding: 1rem; }.ai-quick-chat { order: 2; }.home-metrics { order: 3; }.wordbook-panel { order: 4; }.rank-card { order: 5; }.core-achievement { order: 6; }.training-links { order: 7; }.home-rail--left .rail-section:nth-child(2) { order: 8; }.home-rail--left .rail-section:first-child { order: 9; }.home-rail--right .rail-section { order: 10; }
    .task-numbers strong { font-size: 2.7rem; }.task-numbers div { padding-inline: .5rem; }.primary-actions { grid-template-columns: 1fr; }.primary-actions .btn-primary { display: none; }.wordbook-panel .section-heading { align-items: stretch; flex-direction: column; }.wordbook-panel select { width: 100%; max-width: none; }
    .home-chart--heatmap { height: 240px; }.mobile-primary-action { position: fixed; z-index: 36; left: .7rem; right: .7rem; bottom: calc(64px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); display: block; padding: .5rem; border: 1px solid var(--border); background: var(--surface); box-shadow: var(--shadow-lift); }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: 1ms !important; animation-iteration-count: 1 !important; transition-duration: 1ms !important; }
}

/* 2026-08 学习助理与高密度数据界面增强 */
.heatmap-achievement .window-note,
.heatmap-achievement .chart-summary { font-size: 13px; line-height: 1.55; }
.achievement-84__heading span,
.achievement-bars span,
.achievement-bars strong,
.achievement-milestone > div:first-child { font-size: 14px; }
.achievement-84__heading h3 { font-size: 18px; line-height: 1.55; }
.achievement-84__heading > strong small,
.achievement-records span,
.current-level-summary span,
.current-level-summary small { font-size: 12px; }
.achievement-records strong { font-size: 15px; }
.current-level-summary p { font-size: 16px; line-height: 1.7; }

.ai-quick-chat { min-height: 390px; padding: clamp(1.1rem,2vw,1.5rem); border: 1px solid var(--border); border-top: 4px solid var(--indigo); background: var(--surface); }
.ai-chat-heading { display: flex; justify-content: space-between; gap: 1rem; align-items: start; }
.ai-chat-heading h2,.ai-chat-heading h3 { max-width: 23ch; margin: 0; font: 700 clamp(1.35rem,2.2vw,2rem)/1.2 Georgia,"Microsoft YaHei UI",serif; }
.ai-chat-heading__actions,.notes-ai-heading__actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: .6rem; }
.assistant-language-switch { display: inline-grid; grid-template-columns: repeat(2,1fr); padding: 3px; border: 1px solid var(--border-strong); background: var(--paper); }
.assistant-language-switch button { min-width: 64px; min-height: 38px; padding: .35rem .65rem; border: 0; background: transparent; color: var(--ink-3); font: inherit; font-size: .76rem; font-weight: 700; line-height: 1; cursor: pointer; }
.assistant-language-switch button[aria-pressed="true"] { background: var(--action-bg); color: var(--on-action); }
.assistant-language-switch button:focus-visible { outline: 3px solid var(--vermilion); outline-offset: 2px; }
.assistant-language-switch button:disabled { opacity: .55; cursor: wait; }
.assistant-scene-compact { margin: -.25rem 0 1rem 4rem; padding: .8rem; border-block: 1px solid var(--border-strong); background: var(--paper); }
.assistant-scene-compact label { display: block; margin-bottom: .35rem; color: var(--ink-2); font-size: .74rem; font-weight: 800; }
.assistant-scene-compact > div { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: .55rem; }
.assistant-scene-compact select { min-width: 0; min-height: 44px; padding: .55rem .65rem; border: 1px solid var(--border-strong); background: var(--surface-strong); color: var(--ink); font: inherit; }
.ai-greeting { display: grid; grid-template-columns: 48px 1fr; gap: .9rem; align-items: center; margin: 1.25rem 0; padding: 1rem 0; border-block: 1px solid var(--border-strong); }
.ai-greeting__mark { width: 48px; height: 48px; display: grid; place-items: center; color: var(--on-action); background: var(--action-bg); font: 700 1rem Georgia,serif; }
.ai-greeting p { margin: 0; color: var(--ink); font-size: 1rem; font-weight: 650; line-height: 1.65; }
.ai-greeting[data-source="local"]::after { content: "本地学习提示"; grid-column: 2; color: var(--ink-3); font-size: .75rem; }
.ai-chat-messages { max-height: 260px; overflow: auto; display: grid; gap: .65rem; }
.ai-message { padding: .8rem 0; border-bottom: 1px solid var(--border); }
.ai-message strong { color: var(--vermilion); font-size: .75rem; }
.ai-message p { margin: .3rem 0 0; line-height: 1.65; }
.ai-message--user { padding-left: 12%; }
.ai-message--user strong { color: var(--indigo); }
.ai-citations { display: grid; gap: .35rem; margin-top: .55rem; }
.ai-citations span { padding: .5rem; background: var(--paper); color: var(--ink-2); font-size: .76rem; }
.ai-action-preview { margin-top: .7rem; padding: .8rem; border: 1px solid var(--border-strong); background: var(--paper); }
.ai-action-preview > div { display: flex; flex-wrap: wrap; gap: .5rem; }
.ai-chat-form { display: grid; grid-template-columns: 1fr auto; gap: .65rem; margin-top: 1rem; }
.ai-chat-form textarea,.assistant-composer textarea { width: 100%; min-height: 52px; padding: .75rem; resize: vertical; border: 1px solid var(--border-strong); background: var(--surface-strong); color: var(--ink); font: inherit; line-height: 1.5; }
.ai-chat-prompts { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: .65rem; }
.ai-chat-prompts button,.text-button { min-height: 36px; padding: .4rem .65rem; border: 0; border-bottom: 1px solid var(--border-strong); color: var(--indigo); background: transparent; cursor: pointer; font: inherit; font-size: .75rem; }
.ai-chat-prompts button:hover,.text-button:hover { color: var(--vermilion); border-color: var(--vermilion); }
.ai-chat-privacy { margin: .8rem 0 0; color: var(--ink-3); font-size: .72rem; }

.settings-section--ai { align-items: start; }
.ai-settings-panel { display: grid; gap: .75rem; }
.secret-field { display: grid; grid-template-columns: 1fr auto; }
.secret-field input,.notes-search-row input { min-width: 0; min-height: 46px; padding: .65rem .75rem; border: 1px solid var(--border-strong); background: var(--surface-strong); color: var(--ink); font: inherit; }
.secret-field button { min-width: 64px; border: 1px solid var(--border-strong); border-left: 0; background: var(--paper); color: var(--indigo); cursor: pointer; }
.ai-settings-actions { display: flex; flex-wrap: wrap; gap: .55rem; }
.btn-danger { color: var(--danger); border-color: var(--danger); }
.ai-account-ledger { display: grid; grid-template-columns: repeat(2,1fr); border: 1px solid var(--border); }
.ai-account-ledger div { min-height: 76px; padding: .75rem; }
.ai-account-ledger div:nth-child(even) { border-left: 1px solid var(--border); }
.ai-account-ledger div:nth-child(n+3) { border-top: 1px solid var(--border); }
.ai-account-ledger span,.ai-account-ledger strong { display: block; }
.ai-account-ledger span { color: var(--ink-3); font-size: .75rem; }
.ai-account-ledger strong { margin-top: .3rem; color: var(--indigo); font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }

.notes-studio { display: grid; grid-template-columns: minmax(190px,.65fr) minmax(430px,1.55fr) minmax(240px,.8fr); border: 1px solid var(--border-strong); background: var(--surface); }
.notes-studio > * { min-width: 0; padding: 1.2rem; }
.notes-studio > * + * { border-left: 1px solid var(--border); }
.notes-index,.notes-insight { display: grid; gap: 2rem; align-content: start; }
.notes-main { display: grid; gap: 2rem; }
.note-editor { padding-bottom: 1.5rem; border-bottom: 2px solid var(--indigo); }
.note-editor .work-textarea--large { min-height: 38dvh; }
.conversation-index { display: grid; }
.conversation-item { position: relative; border-bottom: 1px solid var(--border); }
.conversation-link { width: 100%; min-height: 58px; padding: .65rem 3rem .65rem .65rem; border: 0; background: transparent; color: var(--ink); text-align: left; cursor: pointer; transition: background var(--speed-fast),box-shadow var(--speed-fast); }
.conversation-link:hover { background: var(--indigo-soft); }
.conversation-link:focus-visible { outline: 3px solid var(--vermilion); outline-offset: 2px; }
.conversation-link strong,.conversation-link span { display: block; }
.conversation-link span { margin-top: .2rem; color: var(--ink-3); font-size: .72rem; }
.conversation-item.is-active .conversation-link { background: var(--paper-deep); box-shadow: inset 3px 0 0 var(--vermilion); }
.conversation-item.is-active .conversation-link strong { color: var(--indigo); }
.conversation-delete { position: absolute; top: 50%; right: .35rem; transform: translateY(-50%); min-width: 2.75rem; min-height: 2.5rem; padding: .3rem .5rem; border: 0; background: transparent; color: var(--ink-3); font: inherit; font-size: .72rem; cursor: pointer; transition: color var(--speed-fast),background var(--speed-fast); }
.conversation-delete:hover { color: var(--on-action); background: var(--accent-bg); }
.conversation-delete:focus-visible { outline: 3px solid var(--vermilion); outline-offset: 2px; }
.notes-ai-chat { scroll-margin-top: 90px; }
.notes-ai-heading { align-items: flex-start; }
.assistant-scene-directory { margin: 1rem 0; padding: 1rem; border-block: 1px solid var(--border-strong); background: var(--paper); }
.assistant-scene-directory > div:first-child { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: .75rem; }
.assistant-scene-directory > div:first-child strong { color: var(--indigo); font: 700 1.05rem Georgia,serif; }
.assistant-scene-directory > div:first-child span { color: var(--ink-3); font-size: .74rem; }
.assistant-scene-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); border-top: 1px solid var(--border); border-left: 1px solid var(--border); }
.assistant-scene-grid button { min-height: 68px; display: grid; align-content: center; gap: .2rem; padding: .65rem; border: 0; border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--surface); color: var(--ink); text-align: left; cursor: pointer; }
.assistant-scene-grid button:hover { background: var(--indigo-soft); }
.assistant-scene-grid button:focus-visible { position: relative; outline: 3px solid var(--vermilion); outline-offset: -3px; }
.assistant-scene-grid strong { color: var(--indigo); font-size: .82rem; }
.assistant-scene-grid span { color: var(--ink-3); font-size: .7rem; }
.assistant-turn-controls { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: .65rem; }
.assistant-turn-controls button { min-height: 40px; padding: .45rem .7rem; border: 1px solid var(--border-strong); background: var(--surface); color: var(--indigo); font: inherit; font-size: .75rem; font-weight: 700; cursor: pointer; }
.assistant-turn-controls button:hover { border-color: var(--vermilion); color: var(--vermilion); }
.notes-search-row { display: grid; grid-template-columns: 1fr auto; gap: .55rem; margin: 1rem 0; }
.assistant-thread { height: 420px; overflow: auto; display: flex; flex-direction: column; gap: .85rem; padding: .7rem 1rem .7rem 0; }
.assistant-empty { min-height: 220px; display: grid; place-content: center; text-align: center; color: var(--ink-2); }
.assistant-empty strong { color: var(--indigo); font: 700 1.3rem Georgia,"Microsoft YaHei UI",serif; }
.assistant-message { width: min(88%,720px); display: flex; align-items: flex-start; gap: .65rem; }
.assistant-message--user { flex-direction: row-reverse; align-self: flex-end; }
.assistant-message__bubble { min-width: 0; padding: .75rem .9rem; background: var(--paper); border: 1px solid var(--border); border-radius: 2px 14px 14px 14px; }
.assistant-message--user .assistant-message__bubble { background: var(--indigo-soft); border-color: #bcc0d2; border-radius: 14px 2px 14px 14px; }
.assistant-message__bubble > strong { color: var(--vermilion); font-size: .75rem; }
.assistant-message--user .assistant-message__bubble > strong { color: var(--indigo); }
.assistant-message__bubble > p { margin: .3rem 0 0; line-height: 1.75; overflow-wrap: anywhere; }
.assistant-stream-status { margin-top: .65rem !important; color: var(--ink-3); font-size: .8rem; }
.assistant-citations { display: grid; gap: .45rem; margin-top: .65rem; }
.assistant-citations blockquote { margin: 0; padding: .65rem; background: var(--paper); color: var(--ink-2); font-size: .78rem; line-height: 1.6; }
.assistant-action { margin-top: .8rem; padding: .85rem; border: 1px solid var(--border-strong); background: var(--paper); }
.assistant-action > div { display: flex; flex-wrap: wrap; gap: .5rem; }
.assistant-composer { display: grid; grid-template-columns: 1fr auto; gap: .65rem; margin-top: 1rem; }
.ai-summary { display: grid; gap: .8rem; }
.ai-summary article { padding-bottom: .75rem; border-bottom: 1px solid var(--border); }
.ai-summary article p { margin: .3rem 0 0; color: var(--ink-2); line-height: 1.65; }
.memory-rule { color: var(--ink-2); font-size: .78rem; line-height: 1.65; }
.memory-list article { display: flex; justify-content: space-between; gap: .6rem; padding: .7rem 0; border-top: 1px solid var(--border); }
.memory-list span { color: var(--vermilion); font-size: .68rem; font-weight: 800; }
.memory-list p { margin: .25rem 0 0; line-height: 1.55; }
.memory-list button { flex: none; align-self: start; border: 0; background: transparent; color: var(--ink-3); cursor: pointer; }

.note-manager { min-width: 0; }
.note-history-count { color: var(--vermilion); font-weight: 800; font-variant-numeric: tabular-nums; }
.note-history-search { width: 100%; min-height: 44px; margin: .8rem 0 .45rem; padding: .6rem .7rem; border: 1px solid var(--border-strong); background: var(--surface-strong); color: var(--ink); font: inherit; }
.note-history-list { max-height: 360px; overflow-y: auto; border-top: 1px solid var(--border); }
.note-history-item { width: 100%; min-height: 82px; display: grid; gap: .45rem; padding: .75rem .35rem; border: 0; border-bottom: 1px solid var(--border); background: transparent; color: var(--ink); text-align: left; cursor: pointer; }
.note-history-item:hover { background: var(--paper); }.note-history-item:focus-visible { outline: 3px solid var(--vermilion); outline-offset: -3px; }
.note-history-item__heading { display: flex; justify-content: space-between; gap: .6rem; align-items: baseline; }.note-history-item__heading strong { color: var(--indigo); font-size: .82rem; }.note-history-item__heading small { color: var(--ink-3); font-size: .65rem; white-space: nowrap; }
.note-history-item__preview { display: -webkit-box; overflow: hidden; -webkit-line-clamp: 2; -webkit-box-orient: vertical; color: var(--ink-2); font-size: .75rem; line-height: 1.55; }
.note-history-empty { padding: 1.2rem .35rem; color: var(--ink-2); }.note-history-empty strong { color: var(--indigo); }.note-history-empty p { margin: .35rem 0 0; font-size: .75rem; line-height: 1.55; }
.note-manager-modal[hidden] { display: none; }
.note-modal-card { width: min(760px,100%); border-radius: 0; }
.note-modal-card .modal-header { padding-bottom: .9rem; border-bottom: 1px solid var(--border); }.note-modal-card .modal-header h2 { margin: 0; }
.note-modal-state { min-height: 1.5rem; margin-bottom: .6rem; color: var(--ink-3); font-size: .75rem; }
.note-modal-preview { min-height: 240px; max-height: 45dvh; overflow-y: auto; padding: 1.1rem; white-space: pre-wrap; overflow-wrap: anywhere; color: var(--ink); background: var(--paper); border: 1px solid var(--border); font-size: .95rem; line-height: 1.8; }
.note-modal-editor { width: 100%; min-height: 320px; max-height: 52dvh; padding: 1rem; resize: vertical; background: var(--surface-strong); border: 1px solid var(--indigo); color: var(--ink); font: inherit; line-height: 1.75; }
.note-modal-editor[hidden],.note-modal-preview[hidden],.note-modal-summary[hidden] { display: none; }
.note-modal-summary { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--border); }.note-modal-summary h3 { margin: 0 0 .6rem; color: var(--indigo); font-size: .9rem; }.note-modal-summary pre { max-height: 180px; margin: 0; overflow: auto; white-space: pre-wrap; color: var(--ink-2); font: .78rem/1.65 "Microsoft YaHei UI",sans-serif; }
.note-modal-actions { display: flex; justify-content: space-between; gap: 1rem; margin-top: 1.1rem; padding-top: 1rem; border-top: 2px solid var(--indigo); }.note-modal-actions > div { display: flex; flex-wrap: wrap; gap: .55rem; }

.radar-ledger { padding-bottom: 1.5rem; }
.radar-triptych { display: grid; grid-template-columns: repeat(3,1fr); margin-top: 1rem; border-top: 1px solid var(--border-strong); }
.radar-triptych figure { min-width: 0; margin: 0; padding: 1rem; }
.radar-triptych figure + figure { border-left: 1px solid var(--border); }
.radar-triptych figcaption { display: flex; justify-content: space-between; gap: .5rem; align-items: baseline; }
.radar-triptych figcaption strong { font-size: 1rem; }
.radar-triptych figcaption span { color: var(--ink-3); font-size: .72rem; }
.radar-chart { height: 330px; }
.ai-usage-metrics { display: grid; grid-template-columns: repeat(5,1fr); margin: 1rem 0 1.5rem; border-block: 2px solid var(--indigo); }
.ai-usage-metrics div { padding: 1rem; }
.ai-usage-metrics div + div { border-left: 1px solid var(--border); }
.ai-usage-metrics span,.ai-usage-metrics strong,.ai-usage-metrics small { display: block; }
.ai-usage-metrics span,.ai-usage-metrics small { color: var(--ink-3); }
.ai-usage-metrics span { font-size: .75rem; }
.ai-usage-metrics strong { margin: .4rem 0; color: var(--indigo); font: 700 clamp(1.35rem,2.4vw,2.2rem) Georgia,serif; font-variant-numeric: tabular-nums; }
.ai-usage-metrics small { font-size: .68rem; }
.ai-usage-visuals { display: grid; grid-template-columns: 1.25fr .9fr .85fr; gap: 1rem; }
.ai-usage-visuals > section { min-width: 0; padding-top: .8rem; border-top: 1px solid var(--border-strong); }
.ai-usage-visuals h3 { margin: 0; font-size: 1rem; }
.ai-outcome-list { margin-top: .8rem; }
.ai-outcome-list article { display: grid; grid-template-columns: 1fr auto; gap: .2rem .7rem; padding: .65rem 0; border-bottom: 1px solid var(--border); }
.ai-outcome-list span { color: var(--vermilion); font-weight: 800; }
.ai-outcome-list small { grid-column: 1/-1; color: var(--ink-3); }
.ai-usage-learning { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1rem; }
.ai-usage-learning > section { min-width: 0; padding-top: .8rem; border-top: 1px solid var(--border-strong); }
.ai-usage-learning h3 { margin: 0; font-size: 1rem; }
.ai-list { margin: .8rem 0 0; padding: 0; list-style: none; }
.ai-list li { padding: .55rem 0; border-bottom: 1px solid var(--border); }
.ai-list li:last-child { border-bottom: 0; }
.ai-list time,.ai-list span { display: block; color: var(--ink-3); font-size: .72rem; }
.ai-list strong { color: var(--indigo); }
.ai-list p { margin: .15rem 0 0; color: var(--ink-2); font-size: .8rem; line-height: 1.55; }

.grammar-heading h1 { max-width: 16ch; }
.grammar-directory { margin-bottom: 1rem; padding: 1.25rem; border: 1px solid var(--border-strong); border-top: 4px solid var(--vermilion); background: var(--surface); }
.grammar-groups { display: grid; gap: 1.5rem; margin-top: 1rem; }
.grammar-group header { display: flex; justify-content: space-between; gap: 1rem; align-items: baseline; margin-bottom: .55rem; }
.grammar-group h3 { margin: 0; font-size: 1rem; }
.grammar-group header span { color: var(--ink-3); font-size: .75rem; }
.grammar-category-grid { display: grid; grid-template-columns: repeat(4,1fr); border-top: 1px solid var(--border-strong); border-left: 1px solid var(--border-strong); }
.grammar-category { position: relative; min-height: 132px; display: grid; align-content: start; gap: .35rem; padding: .9rem; border: 0; border-right: 1px solid var(--border-strong); border-bottom: 1px solid var(--border-strong); background: var(--paper); color: var(--ink); text-align: left; cursor: pointer; }
.grammar-category:hover,.grammar-category:focus-visible { background: var(--indigo-soft); }
.grammar-category.is-active { color: var(--on-action); background: var(--action-bg); }
.grammar-category.is-priority:not(.is-active)::after { content: "建议优先"; position: absolute; right: .6rem; top: .55rem; color: var(--vermilion); font-size: .65rem; font-weight: 800; }
.grammar-category > span { color: var(--vermilion); font-size: .68rem; font-weight: 800; }
.grammar-category.is-active > span,.grammar-category.is-active small,.grammar-category.is-active b { color: #dfe1eb; }
.grammar-category strong { max-width: 9ch; font: 700 1.05rem/1.35 Georgia,"Microsoft YaHei UI",serif; }
.grammar-category small,.grammar-category b { color: var(--ink-3); font-size: .7rem; font-weight: 400; }
.grammar-workbench { display: grid; grid-template-columns: minmax(180px,.58fr) minmax(420px,1.65fr) minmax(220px,.7fr); border: 1px solid var(--border-strong); background: var(--surface); }
.grammar-workbench > * { min-width: 0; padding: 1.2rem; }
.grammar-workbench > * + * { border-left: 1px solid var(--border); }
.grammar-context,.grammar-method { align-self: start; position: sticky; top: 88px; }
.grammar-stage { min-height: 560px; }
.grammar-stage .question-prompt { font-size: clamp(1.35rem,2.4vw,2rem); line-height: 1.45; }
.quiz-opt-btn { grid-template-columns: 34px 1fr; align-items: center; text-align: left; }
.quiz-opt-btn > span { color: var(--vermilion); font: 700 1rem Georgia,serif; }

@media (min-width:768px) and (max-width:1199px) {
    .notes-studio { grid-template-columns: 210px minmax(0,1fr); }
    .notes-insight { grid-column: 1/-1; grid-template-columns: repeat(2,1fr); border-top: 1px solid var(--border); border-left: 0 !important; }
    .radar-triptych { grid-template-columns: repeat(2,1fr); }
    .radar-triptych figure:last-child { grid-column: 1/-1; border-top: 1px solid var(--border); border-left: 0; }
    .ai-usage-metrics { grid-template-columns: repeat(3,1fr); }
    .ai-usage-metrics div:nth-child(4) { border-left: 0; }
    .ai-usage-metrics div:nth-child(n+4) { border-top: 1px solid var(--border); }
    .ai-usage-visuals { grid-template-columns: 1fr 1fr; }
    .ai-usage-visuals > section:last-child { grid-column: 1/-1; }
    .grammar-category-grid { grid-template-columns: repeat(3,1fr); }
    .grammar-workbench { grid-template-columns: 190px minmax(0,1fr); }
    .grammar-method { grid-column: 1/-1; position: static; border-top: 1px solid var(--border); border-left: 0 !important; }
}

@media (max-width:767px) {
    .achievement-84__heading h3 { font-size: 17px; }
    .achievement-bars span,.achievement-bars strong { font-size: 13px; }
    .ai-quick-chat { min-height: 0; }
    .ai-chat-heading,.ai-chat-form,.assistant-composer { grid-template-columns: 1fr; }
    .ai-chat-heading { display: grid; }
    .ai-chat-heading__actions,.notes-ai-heading__actions { justify-content: space-between; }
    .assistant-language-switch { width: 100%; }
    .assistant-language-switch button { min-height: 44px; }
    .assistant-scene-compact { margin-left: 0; }
    .assistant-scene-compact > div { grid-template-columns: 1fr; }
    .ai-message--user,.assistant-message--user { padding-left: 4%; }
    .ai-chat-form .btn,.assistant-composer .btn { min-height: 48px; }
    .ai-account-ledger { grid-template-columns: 1fr; }
    .ai-account-ledger div:nth-child(even) { border-left: 0; }
    .ai-account-ledger div + div { border-top: 1px solid var(--border); }
    .notes-studio { grid-template-columns: 1fr; border-inline: 0; }
    .notes-studio > * + * { border-top: 1px solid var(--border); border-left: 0; }
    .notes-main { order: -1; }
    .notes-index { grid-template-columns: 1fr; }
    .assistant-thread { height: 58dvh; }
    .notes-search-row { grid-template-columns: 1fr; }
    .notes-ai-heading { align-items: stretch; flex-direction: column; }
    .notes-ai-heading__actions { display: grid; grid-template-columns: 1fr; width: 100%; }
    .assistant-scene-directory > div:first-child { align-items: flex-start; flex-direction: column; gap: .2rem; }
    .assistant-scene-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .note-history-list { max-height: 430px; }
    .note-manager-modal { padding: 10px; align-items: end; }
    .note-modal-card { width: 100%; max-height: 92dvh; padding: 16px; }
    .note-modal-preview { min-height: 220px; }.note-modal-editor { min-height: 45dvh; }
    .note-modal-actions { flex-direction: column-reverse; }.note-modal-actions > div { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); }.note-modal-actions .btn { min-height: 46px; }
    .achievements-ledger { grid-template-columns: 1fr; }.achievements-ledger > * { grid-column: 1; }
    .achievement-rhythm { grid-template-columns: 1fr; }.achievement-rhythm > p { align-self: auto; }.achievement-rhythm__grid { grid-template-columns: 1fr; }
    .radar-triptych { grid-template-columns: 1fr; }
    .radar-triptych figure + figure { border-top: 1px solid var(--border); border-left: 0; }
    .radar-chart { height: 310px; }
    .ai-usage-metrics { grid-template-columns: 1fr 1fr; }
    .ai-usage-metrics div + div { border-left: 0; }
    .ai-usage-metrics div:nth-child(even) { border-left: 1px solid var(--border); }
    .ai-usage-metrics div:nth-child(n+3) { border-top: 1px solid var(--border); }
    .ai-usage-metrics div:last-child { grid-column: 1/-1; border-left: 0; }
    .ai-usage-visuals { grid-template-columns: 1fr; }
    .ai-usage-learning { grid-template-columns: 1fr; }
    .grammar-directory { margin-inline: -.5rem; padding: 1rem .5rem; border-inline: 0; }
    .grammar-category-grid { grid-template-columns: repeat(2,1fr); }
    .grammar-category { min-height: 142px; padding: .75rem; }
    .grammar-category strong { font-size: 1rem; }
    .grammar-workbench { grid-template-columns: 1fr; border-inline: 0; }
    .grammar-workbench > * + * { border-top: 1px solid var(--border); border-left: 0; }
    .grammar-context,.grammar-method { position: static; }
    .grammar-context { order: -1; }
    .grammar-stage { min-height: 520px; }
}

/* Unified states and focused workspaces */
[hidden] { display: none !important; }
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    margin: -1px !important;
    padding: 0 !important;
    overflow: hidden !important;
    clip: rect(0 0 0 0) !important;
    clip-path: inset(50%) !important;
    white-space: nowrap !important;
    border: 0 !important;
}
.btn { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: .45rem; padding: .7rem 1rem; border: 1px solid var(--indigo); color: var(--indigo); background: transparent; font: inherit; font-size: .82rem; font-weight: 800; line-height: 1.2; text-decoration: none; cursor: pointer; transition: color var(--speed-fast),background var(--speed-fast),transform var(--speed-fast) var(--ease-out); }
.btn:hover:not(:disabled) { transform: translateY(-2px); }.btn:focus-visible { outline: 3px solid var(--vermilion); outline-offset: 3px; }.btn:disabled { cursor: not-allowed; opacity: .45; }.btn-primary { color: var(--on-action); background: var(--action-bg); }.btn-primary:hover:not(:disabled) { color: var(--on-action); background: var(--indigo-deep); }.btn-secondary { color: var(--indigo); background: var(--surface); }.btn-secondary:hover:not(:disabled) { background: var(--indigo-soft); }.btn-block { width: 100%; }.btn-large { min-height: 60px; padding: .9rem 1.2rem; }
.toast-stack { position: fixed; z-index: var(--z-toast); right: 1rem; bottom: 1rem; display: grid; gap: .5rem; pointer-events: none; }
.toast { max-width: min(360px, calc(100vw - 2rem)); padding: .8rem 1rem; color: var(--on-action); background: var(--action-bg); outline: 1px solid var(--vermilion); opacity: 0; transform: translateY(8px); transition: opacity var(--speed-fast), transform var(--speed-fast); pointer-events: auto; }
.toast.is-visible { opacity: 1; transform: none; }
.toast--error { background: var(--danger); }.toast--warning { background: var(--warning); }.toast--success { background: var(--success); }
.region-state { margin: 1rem 0; padding: 1rem; border: 1px solid var(--border); background: var(--surface); color: var(--ink-2); }
.region-state--loading { border-top: 3px solid var(--indigo); }.region-state--error { border-top: 3px solid var(--danger); color: var(--danger); }
.empty-state { padding: clamp(2rem, 6vw, 5rem); text-align: center; border: 1px dashed var(--border-strong); background: var(--surface); }
.empty-state h2 { margin-top: 0; }.muted { color: var(--ink-3); }.difficulty-chip { display: inline-flex; align-items: center; width: fit-content; margin: .2rem 0; padding: .32rem .6rem; border: 1px solid var(--border); background: var(--paper); color: var(--ink-3); font-size: .72rem; font-weight: 700; }.difficulty-chip.is-set { color: var(--indigo); border-color: var(--indigo); background: var(--indigo-soft); }.section-heading__aside { display: flex; flex-direction: column; align-items: flex-end; gap: .3rem; text-align: right; }
.eyebrow { margin: 0 0 .45rem; color: var(--vermilion); font-size: .7rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.page-shell { width: min(1400px, calc(100% - 2rem)); margin: 0 auto; }
.page-heading { display: flex; align-items: end; justify-content: space-between; gap: 2rem; margin-bottom: 1.25rem; padding: 1.4rem 0 1.1rem; border-bottom: 2px solid var(--indigo); }
.page-heading h1 { max-width: 850px; margin: 0; font-family: Georgia, "Times New Roman", "Microsoft YaHei UI", serif; font-size: clamp(2rem, 4vw, 4.2rem); line-height: 1.02; letter-spacing: -.045em; white-space: nowrap; }
.page-heading p:last-child { max-width: 720px; margin: .75rem 0 0; color: var(--ink-2); }
.section-block { margin-bottom: 1rem; }.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 1rem; }.section-heading h2,.section-heading h3 { margin: 0; }
.rank-ledger { display: grid; grid-template-columns: .8fr 1.35fr 1fr; border: 1px solid var(--border-strong); background: var(--surface); }
.rank-ledger > div { min-width: 0; padding: clamp(1rem, 2.5vw, 2rem); }.rank-ledger > div + div { border-left: 1px solid var(--border); }
.rank-ledger__identity { color: var(--on-action); background: var(--action-bg); }.rank-ledger__identity .eyebrow { color: #f2b9aa; }.rank-ledger__identity h2 { margin: .45rem 0; font: 700 clamp(2.4rem, 5vw, 5rem)/1 Georgia, serif; }
.rank-diagnostic { display: block; margin-top: 1.6rem; padding-top: .8rem; color: var(--on-action); border-top: 1px solid rgba(255,255,255,.35); font-size: .76rem; line-height: 1.5; }
.rank-seal { float: right; padding: .28rem .5rem; border: 1px solid rgba(255,255,255,.55); font-variant-numeric: tabular-nums; }
.progress-track { height: 10px; margin: 1.1rem 0; overflow: hidden; background: var(--paper-deep); }.progress-track span { display: block; height: 100%; width: 0; background: var(--accent-bg); transition: opacity .5s var(--ease-out); }
.threshold-list,.advice-list { display: grid; gap: .5rem; }.threshold { padding: .55rem .7rem; border-top: 2px solid var(--border-strong); background: var(--paper); font-size: .78rem; }.threshold.is-met { border-color: var(--indigo); }.advice-list p { margin: 0; padding: .7rem 0; border-bottom: 1px solid var(--border); }
.metric-ledger { display: grid; grid-template-columns: repeat(4,1fr); border: 1px solid var(--border); background: var(--surface); }.metric-ledger article { padding: 1rem 1.2rem; }.metric-ledger article + article { border-left: 1px solid var(--border); }.metric-ledger span,.metric-ledger small { display: block; color: var(--ink-3); }.metric-ledger strong { display: block; margin: .25rem 0; color: var(--indigo); font: 700 2rem/1 Georgia, serif; font-variant-numeric: tabular-nums; }
.metric-ledger--five { grid-template-columns: repeat(5,1fr); }.capability-verdict { display: grid; grid-template-columns: minmax(210px,.65fr) minmax(360px,1.35fr); gap: clamp(1.5rem,4vw,4rem); align-items: center; padding: clamp(1.4rem,3vw,2.4rem); color: var(--on-action); background: var(--action-bg); }.capability-verdict .eyebrow { color: #f2b9aa; }.capability-verdict h2 { margin: .3rem 0 0; font-size: clamp(1.25rem,2vw,1.8rem); }.capability-verdict blockquote { margin: 0; font: 700 clamp(1.25rem,2.4vw,2.15rem)/1.45 Georgia,"Microsoft YaHei UI",serif; }.capability-verdict > p { grid-column: 2; margin: -1.5rem 0 0; color: #d7dbea; font-size: .72rem; }
.growth-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; }.data-panel { min-width: 0; padding: 1.2rem; border: 1px solid var(--border); background: var(--surface); }.data-panel--lead { grid-row: span 2; }.data-panel--wide { grid-column: span 2; }.data-panel h2 { margin: 0; font-size: 1.15rem; }.chart { height: 245px; }.chart--large { height: 480px; }.chart--heatmap { height: 180px; overflow: hidden; }.chart-summary { padding-top: .7rem; border-top: 1px solid var(--border); color: var(--ink-2); font-size: .78rem; }
.data-panel--full { grid-column: 1/-1; }.chart--contribution { height: 360px; }.chart--achievements { height: 360px; }.score-ledger { margin-top: 1rem; border-top: 2px solid var(--indigo); }.score-ledger__head,.score-ledger__row { display: grid; grid-template-columns: minmax(260px,2fr) repeat(5,minmax(72px,.55fr)); align-items: center; gap: .7rem; padding: .75rem .6rem; }.score-ledger__head { color: var(--ink-3); border-bottom: 1px solid var(--border-strong); font-size: .7rem; font-weight: 800; }.score-ledger__row { min-height: 76px; border-bottom: 1px solid var(--border); font-variant-numeric: tabular-nums; }.score-ledger__row > span,.score-ledger__row > strong[data-label] { text-align: right; }.score-ledger__dimension strong,.score-ledger__dimension span { display: block; }.score-ledger__dimension strong { color: var(--indigo); }.score-ledger__dimension span { margin-top: .2rem; color: var(--ink-3); font-size: .72rem; }.score-ledger__total { display: flex; justify-content: flex-end; align-items: baseline; gap: 1rem; padding: 1rem .6rem; color: var(--indigo); }.score-ledger__total strong { font: 700 2rem Georgia,serif; }.ledger-formula { margin-bottom: 0; padding-top: 1rem; color: var(--ink-2); border-top: 1px solid var(--border); font-size: .78rem; }.home-rank-advice { margin: 1rem 0; padding: .8rem 0; border-block: 1px solid var(--border); }.home-rank-advice span { color: var(--vermilion); font-size: .68rem; font-weight: 800; }.home-rank-advice p { margin: .35rem 0 0; color: var(--ink-2); font-size: .76rem; line-height: 1.55; }
.achievements-ledger { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 1.2rem; }
.achievements-ledger > .section-heading,.achievement-rhythm { grid-column: 1/-1; }
.achievement-chart-block { min-width: 0; padding-top: 1rem; border-top: 1px solid var(--border); }.achievement-chart-block h3 { color: var(--indigo); }
.achievement-rhythm { display: grid; grid-template-columns: minmax(180px,.45fr) minmax(0,1.55fr); gap: 1.2rem 2rem; padding-top: 1.2rem; border-top: 2px solid var(--indigo); }.achievement-rhythm > p { margin: 0; color: var(--ink-2); align-self: end; }
.achievement-rhythm__grid { grid-column: 1/-1; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 1rem; }.achievement-rhythm figure { min-width: 0; margin: 0; padding: 1rem; background: var(--paper); border: 1px solid var(--border); }.achievement-rhythm figcaption { display: flex; justify-content: space-between; gap: 1rem; }.achievement-rhythm figcaption strong { color: var(--indigo); }.achievement-rhythm figcaption span { color: var(--vermilion); font-weight: 800; font-variant-numeric: tabular-nums; }.chart--rhythm { height: 150px; }
.achievement-rhythm > .chart-summary { grid-column: 1/-1; }
.timeline-list { margin: 1rem 0 0; padding: 0; max-height: 300px; overflow-y: auto; overflow-x: hidden; list-style: none; }.timeline-list li { display: grid; grid-template-columns: 1fr auto; gap: .15rem 1rem; padding: .7rem 0; border-top: 1px solid var(--border); }.timeline-list time { grid-column: 1/-1; color: var(--ink-3); font-size: .72rem; }
.focus-shell { width: min(1400px, calc(100% - 2rem)); min-height: calc(100dvh - 104px); margin: 0 auto; display: grid; grid-template-columns: minmax(230px,.58fr) minmax(0,1.7fr); border-inline: 1px solid var(--border); background: var(--surface); }
.focus-shell > * { min-width: 0; padding: clamp(1.2rem,3vw,2.4rem); }.focus-shell > * + * { border-left: 1px solid var(--border); }.focus-context h1 { margin: .25rem 0 1rem; font: 700 clamp(2rem,4vw,4rem)/1 Georgia,serif; }.focus-context p { color: var(--ink-2); }.compact-facts { margin: 2rem 0; }.compact-facts div { display: flex; justify-content: space-between; padding: .7rem 0; border-top: 1px solid var(--border); }.compact-facts dd { margin: 0; font-variant-numeric: tabular-nums; }.focus-insight h2 { margin-top: 0; }.method-list { padding-left: 1.1rem; }.method-list li { margin-bottom: 1rem; }.task-kicker { color: var(--ink-2); }.choice-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: .7rem; }.choice-button { min-height: 56px; padding: .7rem; border: 1px solid var(--border-strong); background: var(--surface-strong); font: 700 1.1rem Georgia,serif; }.choice-button:hover:not(:disabled) { border-color: var(--indigo); }.choice-button.is-correct { color: var(--on-action); background: var(--action-bg); }.choice-button.is-wrong { color: var(--on-action); background: var(--danger); }.answer-panel { margin-top: 1.5rem; padding: 1rem; border-top: 2px solid var(--vermilion); }.english-word { display: block; color: var(--indigo); font: 700 2rem Georgia,serif; }.mobile-action-bar { display: none; }.difficulty-badge { flex: none; padding: .3rem .55rem; color: var(--indigo); border: 1px solid var(--indigo); font-size: .7rem; font-weight: 800; }
.choice-button.is-selected { color: var(--on-action); background: var(--action-bg); }.speaking-panel { max-width: 640px; margin: 2rem auto 0; padding: 1.4rem; text-align: left; border-block: 1px solid var(--border-strong); background: var(--paper); }.speaking-cue { margin-top: 0; color: var(--ink); font-size: 1.05rem; font-weight: 700; }.speaking-panel .btn { margin: .5rem 0; }.speaking-panel blockquote { margin: 1rem 0 0; padding: 1rem; color: var(--indigo); background: var(--surface); font: italic 1.05rem/1.55 Georgia,serif; }
.privacy-note { margin-top: 2rem; padding-top: 1rem; border-top: 2px solid var(--indigo); }.privacy-note p { margin-bottom: 0; color: var(--ink-2); font-size: .78rem; line-height: 1.65; }
.diagnostic-shell { width: min(1180px,calc(100% - 2rem)); margin: 0 auto; padding: clamp(1.5rem,4vw,4rem) 0 5rem; }.diagnostic-heading { display: grid; grid-template-columns: minmax(0,1.7fr) minmax(240px,.7fr); gap: clamp(2rem,6vw,6rem); align-items: end; padding-bottom: 2rem; border-bottom: 3px solid var(--indigo); }.diagnostic-heading h1 { max-width: 850px; margin: .4rem 0 1rem; font: 700 clamp(2.5rem,6vw,5.8rem)/.98 Georgia,"Microsoft YaHei UI",serif; letter-spacing: -.04em; }.diagnostic-heading > div > p:last-child { max-width: 70ch; color: var(--ink-2); line-height: 1.75; }.diagnostic-promise { padding: 1rem 0; border-block: 1px solid var(--border); }.diagnostic-promise strong,.diagnostic-promise span { display: block; }.diagnostic-promise strong { color: var(--vermilion); font-size: 1.1rem; }.diagnostic-promise span { margin-top: .45rem; color: var(--ink-2); font-size: .8rem; line-height: 1.6; }
.diagnostic-intro { padding-top: 2rem; }.diagnostic-route { display: grid; grid-template-columns: repeat(4,1fr); border: 1px solid var(--border-strong); }.diagnostic-route div { min-height: 120px; display: grid; align-content: center; padding: 1.2rem; }.diagnostic-route div + div { border-left: 1px solid var(--border); }.diagnostic-route strong,.diagnostic-route span { display: block; }.diagnostic-route strong { color: var(--indigo); font-size: 1.05rem; }.diagnostic-route span { margin-top: .35rem; color: var(--ink-3); font-size: .78rem; }
.diagnostic-workspace { display: grid; grid-template-columns: 210px minmax(0,1fr); gap: clamp(1.5rem,4vw,4rem); padding-top: 2rem; }.diagnostic-progress { grid-row: span 3; position: sticky; top: 92px; align-self: start; }.diagnostic-progress > span,.diagnostic-progress > strong { display: block; }.diagnostic-progress > span { color: var(--ink-2); }.diagnostic-progress > strong { color: var(--indigo); font: 700 2.5rem Georgia,serif; }.diagnostic-task { max-width: 820px; }.diagnostic-task h2 { margin: .4rem 0 1.5rem; font: 700 clamp(1.8rem,4vw,3.3rem)/1.1 Georgia,"Microsoft YaHei UI",serif; }.diagnostic-task section { padding: 1.2rem 0; border-top: 1px solid var(--border); }.diagnostic-task h3 { font-size: 1rem; line-height: 1.6; }.diagnostic-reading { max-height: 360px; margin-bottom: 2rem; padding: 1.4rem; overflow: auto; white-space: pre-line; color: var(--ink-2); background: var(--surface); border: 1px solid var(--border); font: 1rem/1.85 Georgia,serif; }
.diagnostic-question { display: grid; gap: .5rem; }.diagnostic-question label { display: block; cursor: pointer; }.diagnostic-question input { position: absolute; opacity: 0; }.diagnostic-question span { min-height: 50px; display: flex; align-items: center; gap: .8rem; padding: .65rem .8rem; border: 1px solid var(--border); background: var(--surface); }.diagnostic-question b { flex: none; color: var(--indigo); font: 700 1rem Georgia,serif; }.diagnostic-question input:checked + span { color: var(--on-action); background: var(--action-bg); border-color: var(--indigo); }.diagnostic-question input:checked + span b { color: var(--on-action); }.diagnostic-question input:focus-visible + span { outline: 3px solid var(--vermilion); outline-offset: 2px; }.diagnostic-dialogue .text-link { min-height: 44px; padding: 0; border: 0; background: transparent; cursor: pointer; }.diagnostic-actions { display: flex; flex-wrap: wrap; gap: .7rem; padding-top: 1rem; border-top: 2px solid var(--indigo); }.diagnostic-result { max-width: 820px; padding-top: clamp(2rem,6vw,6rem); }.diagnostic-result h2 { font: 700 clamp(2rem,5vw,4rem)/1.05 Georgia,"Microsoft YaHei UI",serif; }.diagnostic-can-do { padding: 1.2rem 0; color: var(--indigo); border-block: 1px solid var(--border); font: 700 clamp(1.2rem,3vw,1.8rem)/1.5 Georgia,"Microsoft YaHei UI",serif; }.diagnostic-result-score { display: flex; align-items: baseline; gap: 1rem; }.diagnostic-result-score strong { color: var(--vermilion); font: 700 3rem Georgia,serif; }
.error-page { width: min(760px,calc(100% - 2rem)); min-height: 70dvh; margin: 0 auto; display: grid; align-content: center; }.error-page h1 { margin: 0; font: 700 clamp(3rem,9vw,7rem)/.95 Georgia,serif; }.error-page > p:not(.eyebrow) { max-width: 560px; color: var(--ink-2); font-size: 1.05rem; }.action-row { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1rem; }

@media (max-width: 1199px) {
    .rank-ledger { grid-template-columns: 1fr 1.5fr; }.rank-ledger__advice { grid-column: 1/-1; border-top: 1px solid var(--border); border-left: 0 !important; }
    .growth-grid { grid-template-columns: repeat(2,1fr); }.data-panel--lead { grid-row: auto; }.data-panel--timeline { grid-column: 1/-1; }.metric-ledger--five { grid-template-columns: repeat(3,1fr); }.metric-ledger--five article:nth-child(4) { border-top: 1px solid var(--border); border-left: 0; }.metric-ledger--five article:nth-child(5) { border-top: 1px solid var(--border); }.focus-shell { grid-template-columns: .7fr 1.3fr; }.focus-insight { grid-column: 1/-1; border-top: 1px solid var(--border); border-left: 0 !important; }
}
@media (max-width: 767px) {
    .page-shell { width: min(100% - 1rem, 680px); }.page-heading { align-items: stretch; flex-direction: column; }.page-heading h1 { font-size: 2.35rem; }
    .rank-ledger,.metric-ledger,.growth-grid,.capability-verdict { grid-template-columns: 1fr; }.rank-ledger > div + div,.metric-ledger article + article { border-top: 1px solid var(--border); border-left: 0; }.rank-ledger__advice,.data-panel--wide,.data-panel--full { grid-column: auto; }.metric-ledger article { display: grid; grid-template-columns: 1fr auto; }.metric-ledger strong { grid-row: span 2; }.capability-verdict > p { grid-column: auto; margin: 0; }.chart--large { height: 340px; }.chart--contribution { height: 330px; }.chart--heatmap { height: 250px; }.score-ledger__head { display: none; }.score-ledger__row { grid-template-columns: repeat(5,1fr); gap: .6rem; padding: 1rem 0; }.score-ledger__dimension { grid-column: 1/-1; }.score-ledger__row > span,.score-ledger__row > strong[data-label] { text-align: left; }.score-ledger__row [data-label]::before { content: attr(data-label); display: block; margin-bottom: .2rem; color: var(--ink-3); font-size: .62rem; font-weight: 400; }
    .focus-shell { width: 100%; min-height: auto; grid-template-columns: 1fr; border-inline: 0; }.focus-shell > * + * { border-top: 1px solid var(--border); border-left: 0; }.focus-stage { order: -1; }.focus-context h1 { font-size: 2.25rem; }.focus-insight { padding-bottom: 7rem; }.choice-grid { grid-template-columns: 1fr; }.speaking-panel { padding: 1rem; }
    .diagnostic-shell { width: min(100% - 1rem,680px); padding-top: 1rem; }.diagnostic-heading { grid-template-columns: 1fr; gap: 1rem; }.diagnostic-heading h1 { font-size: 2.6rem; }.diagnostic-route { grid-template-columns: repeat(2,1fr); }.diagnostic-route div { min-height: 96px; }.diagnostic-route div:nth-child(even) { border-left: 1px solid var(--border); }.diagnostic-route div:nth-child(n+3) { border-top: 1px solid var(--border); }.diagnostic-workspace { grid-template-columns: 1fr; gap: 1rem; }.diagnostic-progress { position: static; grid-row: auto; display: grid; grid-template-columns: 1fr auto; align-items: center; }.diagnostic-progress .progress-track { grid-column: 1/-1; margin: .5rem 0; }.diagnostic-progress > strong { font-size: 1.5rem; }.diagnostic-reading { max-height: 300px; padding: 1rem; }.diagnostic-actions { position: sticky; bottom: calc(64px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); z-index: 20; padding: .7rem; background: var(--surface); border: 1px solid var(--border); }.diagnostic-actions .btn { flex: 1 1 140px; }
    .mobile-action-bar { position: fixed; z-index: 35; left: .7rem; right: .7rem; bottom: calc(64px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); display: block; padding: .5rem; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow-lift); }.toast-stack { bottom: calc(132px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
}

/* 2026-08-29 · 消息提示只占内容高度，避免 top/bottom 同时生效拉满屏幕。 */
.toast-stack {
    top: 78px;
    bottom: auto;
    width: min(320px, calc(100vw - 2rem));
    align-content: start;
}
.toast {
    width: fit-content;
    max-width: 100%;
    justify-self: end;
    padding: .65rem .8rem;
    font-size: .82rem;
    line-height: 1.45;
}
@media (max-width: 767px) {
    .toast-stack { top: 64px; right: .75rem; bottom: auto; width: min(300px, calc(100vw - 1.5rem)); }
}

/* Final homepage cascade: keep the refinement above legacy compatibility rules. */
.home-rail--right .rank-card { min-height: 630px; display: flex; flex-direction: column; color: var(--ink); background: var(--surface); border-top: 5px solid var(--indigo); }
.home-rail--right .rank-card .eyebrow { color: var(--vermilion); }
.home-rail--right .rank-card h2 { color: var(--ink); }
.home-rail--right .rank-card .rank-stamp { color: var(--indigo); border-color: var(--indigo); }
.home-rail--right .rank-card .rank-card__progress { background: var(--paper-deep); }
.home-rail--right .rank-card .rail-facts div { border-color: var(--border); }
.home-rail--right .rank-card .text-link { color: var(--indigo); }
.home-rail--right .rank-card .ability-mini { background: var(--border); }
.home-rail--right .rank-card .ability-mini div { background: var(--surface); }
.home-rail--right .rank-card .ability-mini span { color: var(--ink-3); }
.primary-actions .btn-primary { display: flex; color: var(--on-action); background: var(--action-bg); }
.primary-actions .btn-primary:hover { color: var(--on-action); background: var(--indigo-deep); transform: translateY(-2px); }
.primary-actions .btn-review { color: var(--on-action); background: var(--accent-bg); }
.mobile-primary-action { display: none; }

@media (max-width: 1199px) {
    .home-rail--right .rank-card { min-height: 600px; }
}
@media (max-width: 767px) {
    .home-rail--right .rank-card { min-height: 0; }
    .primary-actions .btn-primary { display: flex; }
    .mobile-primary-action { display: none; }
}

/* Rolling 12-week achievement visualization and adaptive task advice */
.heatmap-achievement { display: flex; min-height: 0; flex-direction: column; }
.window-note { margin: .3rem 0 0; color: var(--ink-3); font-size: .6rem; line-height: 1.4; }
.achievement-84 { flex: 1; margin-top: 1rem; padding-top: 1rem; border-top: 2px solid var(--indigo); }
.achievement-84__heading { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: .75rem; align-items: start; }
.achievement-84__heading span { color: var(--vermilion); font-size: .68rem; font-weight: 800; letter-spacing: .12em; }
.achievement-84__heading h3 { margin: .35rem 0 0; font-size: .88rem; line-height: 1.55; text-wrap: pretty; }
.achievement-84__heading > strong { min-width: 74px; padding: .6rem .5rem; color: var(--on-action); background: var(--action-bg); text-align: center; font: 700 1.75rem/1 Georgia,serif; font-variant-numeric: tabular-nums; }
.achievement-84__heading > strong small { display: block; margin-top: .3rem; color: #d9dbea; font: 500 .58rem/1.2 "Microsoft YaHei UI",sans-serif; }
.achievement-bars { display: grid; gap: .7rem; margin-top: 1.1rem; }
.achievement-bars > div { display: grid; grid-template-columns: 64px minmax(40px,1fr) auto; gap: .55rem; align-items: center; }
.achievement-bars span { color: var(--ink-2); font-size: .68rem; }
.achievement-bars strong { min-width: 55px; text-align: right; font-size: .68rem; font-variant-numeric: tabular-nums; }
.achievement-bar { height: 7px; overflow: hidden; background: var(--paper-deep); }
.achievement-bar i,.milestone-track i { display: block; width: 0; height: 100%; background: var(--accent-bg); transition: opacity .55s var(--ease-out); }
.achievement-bars > div:nth-child(2) .achievement-bar i { background: var(--action-bg); }
.achievement-bars > div:nth-child(3) .achievement-bar i { background: var(--border-strong); }
.achievement-records { display: grid; grid-template-columns: 1fr 1.25fr; gap: 1px; margin-top: 1rem; background: var(--border); border: 1px solid var(--border); }
.achievement-records > div { min-width: 0; padding: .7rem; background: var(--paper); }
.achievement-records span,.achievement-records strong { display: block; }
.achievement-records span { color: var(--ink-3); font-size: .62rem; }
.achievement-records strong { margin-top: .25rem; color: var(--indigo); font-size: .75rem; font-variant-numeric: tabular-nums; }
.achievement-milestone { margin-top: 1rem; padding: .8rem; color: var(--on-action); background: var(--action-bg); }
.achievement-milestone > div:first-child { display: flex; justify-content: space-between; gap: .6rem; font-size: .65rem; }
.achievement-milestone strong { text-align: right; }
.milestone-track { height: 7px; margin-top: .65rem; background: rgba(255,255,255,.18); }
.milestone-track i { background: #f0b3a5; }
.current-level-summary { margin-top: 1rem; padding: .9rem 0 0; border-top: 1px solid var(--border-strong); }
.current-level-summary > div { display: flex; justify-content: space-between; gap: .75rem; align-items: baseline; }
.current-level-summary span { color: var(--vermilion); font-size: .68rem; font-weight: 800; letter-spacing: .08em; }
.current-level-summary small { color: var(--ink-3); font-size: .58rem; text-align: right; }
.current-level-summary p { margin: .45rem 0 0; color: var(--ink); font-size: .76rem; font-weight: 650; line-height: 1.65; text-wrap: pretty; }
.current-level-summary[data-evidence="limited"] p { color: var(--ink-2); }
.task-advice { display: grid; gap: .2rem; }
.task-advice strong { color: var(--indigo); font-size: .82rem; }
.task-advice span { color: var(--ink-2); font-size: .7rem; line-height: 1.45; }

@media (max-width: 1199px) {
    .achievement-84 { min-height: 330px; }
}
@media (max-width: 767px) {
    .achievement-84 { min-height: 0; }
    .achievement-84__heading h3 { font-size: .82rem; }
    .achievement-bars > div { grid-template-columns: 60px minmax(40px,1fr) auto; }
}

/* ===== 2026-08-16 学习/复习重布置：闪卡四档评级、看义打词、批次反馈、当日即时复现 ===== */

/* --- 通用小组件 --- */
.kbd {
    display: inline-grid;
    place-items: center;
    min-width: 20px;
    min-height: 20px;
    padding: 0 5px;
    color: var(--ink-2);
    background: var(--surface-strong);
    border: 1px solid var(--border-strong);
    border-bottom-width: 2px;
    border-radius: var(--radius-xs);
    font: 700 11px/1 Georgia, "Microsoft YaHei UI", sans-serif;
    font-variant-numeric: tabular-nums;
}
.kbd-hints { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; color: var(--ink-3); font-size: 12px; }
.panel-sub { color: var(--ink-3); font-size: 12px; font-weight: 600; }
.topbar-progress { display: flex; align-items: center; gap: 10px; }

/* --- 进度环 --- */
.progress-ring { position: relative; width: 46px; height: 46px; flex: none; }
.ring-svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-track, .ring-fill { fill: none; stroke-width: 5; }
.ring-track { stroke: var(--paper-deep); }
.ring-fill { stroke: var(--vermilion); stroke-linecap: round; stroke-dasharray: 169.65; stroke-dashoffset: 169.65; transition: stroke-dashoffset 320ms var(--ease-out); }
.ring-label { position: absolute; inset: 0; display: grid; place-items: center; color: var(--ink-3); font-size: 10px; font-weight: 700; font-variant-numeric: tabular-nums; }

/* --- 队列侧栏 --- */
.word-queue { display: grid; align-content: start; gap: 2px; }
.queue-word {
    position: relative;
    min-height: 42px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 8px 10px;
    background: rgba(255,255,255,.34);
    border-bottom: 1px solid var(--border);
    transition: background var(--speed-fast), box-shadow var(--speed-fast);
}
.queue-word:hover { background: var(--indigo-soft); }
.queue-word.current { background: var(--surface-strong); box-shadow: inset 3px 0 0 var(--vermilion); }
.queue-word.current .queue-word-text { color: var(--indigo); font-weight: 700; }
.queue-word.passed { opacity: .55; }
.queue-word.passed .queue-word-text { text-decoration: line-through; }
.queue-word-text {
    min-width: 0;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 15px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.queue-word-status, .queue-word-mode-dots { display: flex; align-items: center; gap: 4px; flex: none; }
.queue-word-status { color: var(--success); font: 700 12px Georgia, serif; font-variant-numeric: tabular-nums; }
.mode-dot {
    width: 20px; height: 20px;
    display: grid; place-items: center;
    color: var(--ink-3);
    background: var(--paper-deep);
    border-radius: 50%;
    font: 700 10px Georgia, serif;
    transition: background var(--speed-fast), color var(--speed-fast);
}
.mode-dot.passed { color: var(--on-action); background: var(--accent-bg); }

/* --- 模式徽章 / 标签图标 --- */
.mode-badges { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 6px; }
.mode-badge {
    min-height: 40px;
    display: flex; align-items: center; justify-content: space-between;
    gap: 6px; padding: 7px 10px;
    color: var(--ink-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,.4);
    font-size: 12px; font-weight: 600;
    font-variant-numeric: tabular-nums;
    transition: border-color var(--speed-fast), background var(--speed-fast), color var(--speed-fast);
}
.mode-badge.active { color: var(--indigo); border-color: var(--indigo); background: var(--indigo-soft); }
.mode-badge.passed { color: var(--success); border-color: var(--border-strong); background: var(--surface-strong); }
.mode-badge b { font-weight: 800; }
.tab-icon {
    width: 22px; height: 22px;
    display: grid; place-items: center; flex: none;
    color: var(--indigo);
    background: var(--indigo-soft);
    border-radius: 50%;
    font: 700 11px Georgia, serif;
}
.review-tab.active .tab-icon { color: var(--on-action); background: var(--accent-bg); }

/* --- 状态药丸 / 移入熟记 --- */
.status-pills { display: flex; flex-wrap: wrap; gap: 6px; }
.status-pill {
    min-height: 32px; padding: 5px 12px;
    color: var(--ink-2);
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    background: transparent;
    font-size: 12px; font-weight: 600;
    transition: background var(--speed-fast), color var(--speed-fast), border-color var(--speed-fast);
}
.status-pill:hover { border-color: var(--indigo); color: var(--indigo); }
.status-pill.active { color: var(--on-action); background: var(--action-bg); border-color: var(--indigo); }
.status-area { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin: 14px 0 4px; }
.btn-slay {
    min-height: 34px; padding: 5px 14px;
    color: var(--vermilion);
    border: 1px solid var(--vermilion);
    border-radius: var(--radius-sm);
    background: transparent;
    font-size: 12px; font-weight: 700;
    transition: background var(--speed-fast), color var(--speed-fast), transform var(--speed-fast) var(--ease-out);
}
.btn-slay:hover { color: var(--on-action); background: var(--accent-bg); }
.btn-slay.slain { transform: scale(.92); opacity: .6; }

/* --- 题目与选项 --- */
.quiz-word-big { font-size: clamp(30px, 5vw, 46px); font-weight: 700; line-height: 1.08; letter-spacing: -.03em; color: var(--indigo); text-align: center; }
.quiz-word-meta { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 6px; }
.quiz-stars { color: var(--vermilion); font-size: 13px; letter-spacing: .08em; }
.quiz-tag { padding: 3px 8px; color: var(--ink-2); border: 1px solid var(--border-strong); border-radius: 999px; font-size: 11px; font-weight: 700; }
.quiz-tag.must { color: var(--vermilion); border-color: var(--vermilion); }
.quiz-tag.priority { color: var(--warning); border-color: var(--warning); }
.quiz-tag.follow { color: var(--success); border-color: var(--border-strong); }
.quiz-tag.done-tag { color: var(--on-action); background: var(--action-bg); border-color: var(--indigo); }
.quiz-tag.skip { color: var(--ink-3); }
.quiz-sentence {
    margin: 14px 0 0; padding: 12px 14px;
    color: var(--ink-2);
    background: rgba(255,255,255,.45);
    border-top: 1px solid var(--border);
    font-family: Georgia, "Times New Roman", serif;
    font-size: 15px; line-height: 1.6; text-align: center;
}
.quiz-options { display: grid; gap: 8px; margin-top: 14px; }
.quiz-opt-btn {
    width: 100%; display: grid;
    grid-template-columns: 40px minmax(0,1fr);
    gap: 14px; align-items: center;
}
.quiz-opt-btn > .opt-letter { align-self: stretch; display: grid; place-items: center; color: var(--vermilion); border-right: 1px solid var(--border); font: 700 1rem Georgia, serif; }
.quiz-opt-btn .opt-text { min-width: 0; display: flex; flex-wrap: wrap; gap: 6px 12px; color: var(--ink); font-weight: 500; }
.quiz-opt-btn .opt-sense { display: inline-flex; align-items: center; line-height: 1.55; }
.quiz-opt-btn .opt-sense + .opt-sense::before { content: "·"; margin-right: 12px; color: var(--border-strong); font-weight: 800; }
.quiz-opt-btn:disabled { opacity: 1; cursor: default; }
.quiz-opt-btn.correct .opt-text { color: var(--indigo-deep); font-weight: 700; }
.quiz-opt-btn.wrong .opt-text { color: var(--danger); }

/* --- 学习/复习卡片 --- */
.study-card-word, .review-card-word {
    padding: 30px 24px;
    text-align: center;
    background: var(--surface-strong);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}
.study-card-word-main, .review-card-word-main { font-size: clamp(34px, 6vw, 58px); font-weight: 700; line-height: 1.05; letter-spacing: -.04em; color: var(--indigo); }
.study-card-phonetic, .review-card-phonetic { margin-top: 7px; color: var(--ink-3); }
.study-card-meaning, .review-card-meaning { margin-top: 12px; font-size: 17px; color: var(--ink); }
.review-card-hint { margin-top: 14px; color: var(--ink-3); font-size: 12px; }
.review-card-word { cursor: pointer; transition: border-color var(--speed-fast), box-shadow var(--speed-fast); }
.review-card-word:hover { border-color: var(--indigo); box-shadow: var(--shadow-soft); }
.review-card-word.is-flipped { border-color: var(--indigo); }
.review-card-frequency { margin-top: 10px; color: var(--vermilion); letter-spacing: .1em; }
.review-card-sentence { margin-top: 12px; font-family: Georgia, "Times New Roman", serif; font-size: 15px; color: var(--ink-2); line-height: 1.55; max-width: 46ch; margin-left: auto; margin-right: auto; }
.review-card-sentence-zh { margin-top: 10px; font-size: 13px; color: var(--ink-3); line-height: 1.55; max-width: 46ch; margin-left: auto; margin-right: auto; }

/* --- 闪卡四档评级 --- */
.flashcard-tip { margin-top: 12px; color: var(--ink-3); font-size: 12px; text-align: center; }
.rating-keys { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 10px; margin-top: 18px; }
.rating-key {
    min-height: 88px;
    display: grid;
    grid-template-rows: auto 1fr auto;
    justify-items: center;
    align-content: center;
    gap: 6px;
    padding: 12px 8px;
    color: var(--indigo);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-md);
    background: var(--surface-strong);
    transition: transform var(--speed-fast) var(--ease-out), border-color var(--speed-fast), box-shadow var(--speed-fast);
}
.rating-key:hover { transform: translateY(-2px); border-color: var(--indigo); box-shadow: var(--shadow-soft); }
.rating-key:disabled { opacity: .5; cursor: default; transform: none; }
.rating-key .rk-name { font-weight: 700; font-size: 15px; }
.rating-key .interval-preview { color: var(--ink-3); font-size: 11px; }
.rating-key--recognize { color: var(--indigo); }
.rating-key--vague { color: var(--warning); }
.rating-key--vague:hover { border-color: var(--warning); }
.rating-key--forget { color: var(--vermilion); }
.rating-key--forget:hover { border-color: var(--vermilion); }
.rating-key--mastered { color: var(--success); }
.rating-key--mastered:hover { border-color: var(--success); }

/* --- 拼写 --- */
.spelling-input {
    display: block;
    max-width: 420px;
    margin: 14px auto;
    text-align: center;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 24px;
    letter-spacing: .05em;
}
.spelling-input:focus { border-color: var(--indigo); outline: 3px solid rgba(48,59,103,.18); outline-offset: 2px; }
.spell-result { margin-top: 14px; text-align: center; }
.spell-correct { color: var(--success); font-weight: 800; font-size: 15px; }
.spell-wrong { color: var(--danger); font-weight: 600; font-size: 14px; }
.spell-wrong--big { font-size: 16px; line-height: 1.7; }
.spell-wrong--big b { font-family: Georgia, serif; font-size: 19px; color: var(--indigo); }
.spell-wrong b { font-family: Georgia, serif; font-size: 15px; color: var(--indigo); }
.spell-retry-hint { display: block; margin-top: 4px; color: var(--ink-2); font-weight: 500; font-size: 14px; }
.quiz-sentence-zh { margin-top: 0; padding: 8px 14px; color: var(--ink-3); font-size: 13px; line-height: 1.6; text-align: center; background: rgba(255,255,255,.3); }
/* 相关单词标签（2026-08-16）：扁平 chips，复用设计 token */
.link-chip { display: inline-block; margin: 2px 4px 2px 0; padding: 3px 10px; border: 1px solid var(--border-strong); border-radius: 999px; background: var(--surface-strong); color: var(--indigo); font-family: Georgia, serif; font-size: 13px; line-height: 1.4; }
.link-chip--btn { cursor: pointer; background: var(--surface-strong); }
.link-chip--btn:hover { border-color: var(--indigo); }
.link-chip--on { background: var(--action-bg); border-color: var(--indigo); color: var(--surface-strong); }
/* 单词收藏（2026-08-16）：心形 SVG + 朱红强调，无 emoji */
.fav-icon { width: 15px; height: 15px; fill: currentColor; flex: 0 0 auto; }
.btn-fav-toggle { display: inline-flex; align-items: center; gap: 5px; padding: 4px 12px; font-size: 13px; border: 1px solid var(--border-strong); border-radius: 999px; background: var(--surface-strong); color: var(--ink-2); cursor: pointer; }
.btn-fav-toggle:hover { border-color: var(--vermilion); color: var(--vermilion); }
.btn-fav-on { background: var(--accent-bg); border-color: var(--vermilion); color: var(--on-action); }
.btn-fav-on .fav-icon { fill: #fff; }

/* --- 批次反馈页 --- */
.batch-stats { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 12px; color: var(--ink-2); font-size: 13px; }
.batch-stats b { color: var(--indigo); font-variant-numeric: tabular-nums; }
.batch-list { display: grid; gap: 8px; max-height: 46dvh; overflow-y: auto; padding-right: 4px; }
.batch-item {
    padding: 12px 14px;
    background: var(--surface-strong);
    border: 1px solid var(--border);
    box-shadow: inset 3px 0 var(--border-strong);
    border-radius: var(--radius-sm);
}
.batch-item--wrong { box-shadow: inset 3px 0 var(--vermilion); }
.batch-word-row { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.batch-word { font-family: Georgia, "Times New Roman", serif; font-size: 18px; font-weight: 700; color: var(--indigo); }
.batch-wrongs { color: var(--vermilion); font-size: 11px; font-weight: 700; }
.batch-meaning { margin-top: 3px; color: var(--ink-2); font-size: 13px; }
.batch-sentence { margin-top: 5px; color: var(--ink-3); font-size: 12px; font-family: Georgia, serif; }

/* --- 复习主区头部 --- */
.mode-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.mode-header .panel-head { margin: 0; }

@media (max-width: 767px) {
    .main-grid > main { order: 1; grid-column: 1 !important; }
    .main-grid > aside { order: 2; grid-column: 1 !important; }
    .quiz-options { gap: 10px; }
    .quiz-opt-btn { min-height: 58px; padding: 10px 12px; grid-template-columns: 38px minmax(0,1fr); gap: 14px; }
    .quiz-opt-btn .opt-text { gap: 8px 12px; font-size: 15px; }
    .word-queue { max-height: 260px !important; }
    .rating-keys { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .status-area { flex-direction: column; align-items: stretch; }
    .status-pills { justify-content: center; }
    .batch-list { max-height: 40dvh; }
}

/* ===== 2026-08-22 手机端任务优先：最终层叠 ===== */
.reading-settings-toggle { display: none; }

@media (min-width: 768px) {
    .reading-settings-disclosure[open] > .reading-settings-body { display: block; }
}

@media (max-width: 767px) {
    #learn-hub { display: flex; flex-direction: column; }
    #learn-hub > .page-heading { order: 0; margin-bottom: .7rem; }
    #learn-hub > [data-region-status] { order: 1; }
    #learn-hub > .training-directory { order: 2; }
    #learn-hub > .plan-board { order: 3; }
    #learn-hub > .training-difficulty { order: 4; }
    #learn-hub .training-directory__grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
    #learn-hub .training-directory__grid a { min-height: 150px; padding: 1rem; }
    #learn-hub .training-directory__grid h3 { font-size: 1.25rem; }
    #learn-hub .training-directory__grid p { font-size: .76rem; line-height: 1.55; }

    .focus-shell--reading .focus-stage { order: 1; }
    .focus-shell--reading .focus-insight { order: 2; padding-bottom: 1.2rem; }
    .focus-shell--reading .focus-context { order: 3; padding-top: 0; padding-bottom: 7rem; }
    .reading-settings-toggle { width: 100%; min-height: 52px; display: flex; justify-content: space-between; align-items: center; padding: .75rem 1rem; border: 1px solid var(--border-strong); background: var(--surface); color: var(--indigo); font: inherit; font-weight: 800; cursor: pointer; list-style: none; }
    .reading-settings-toggle::-webkit-details-marker { display: none; }
    .reading-settings-toggle b { color: var(--vermilion); font-size: .72rem; }
    .reading-settings-disclosure:not([open]) > .reading-settings-body { display: none; }
    .reading-settings-disclosure[open] > .reading-settings-body { display: block; padding-top: 1rem; }
    .focus-shell--reading .article-content { line-height: 1.85 !important; }
    .focus-shell--reading .quiz-options { grid-template-columns: 1fr !important; }

    .grammar-page { display: flex; flex-direction: column; }
    .grammar-page > .grammar-heading { order: 0; }
    .grammar-page > .grammar-workbench { order: 1; }
    .grammar-page > .grammar-directory { order: 2; }
    .grammar-workbench .grammar-stage { order: 1; }
    .grammar-workbench .grammar-context { order: 2; }
    .grammar-workbench .grammar-method { order: 3; }

    .writing-workbench .focus-context { order: 1; padding-top: 1rem; }
    .writing-workbench .focus-stage { order: 2; }
    .writing-workbench .focus-insight { order: 3; }
    .writing-workbench .work-textarea { min-height: 42dvh; }
}

/* Final contrast guard for the condensed home rank summary. */
.rank-card--summary a.text-link { color: var(--indigo) !important; }

@media (max-width: 767px) {
    .home-shell--focused > .home-intro.home-intro--compact { display: none; }
}
/* ============================================================
   2026-08-22 · AI 对话头像/气泡 与 段位路线图
   ============================================================ */

/* ---- AI 对话：头像 + 气泡（区分 AI 与用户）---- */
.chat-avatar { flex: none; width: 34px; height: 34px; object-fit: cover; vertical-align: middle; border-radius: 50%; background: var(--paper); border: 1px solid var(--border-strong); }
.chat-avatar--ai { background: var(--surface-strong); }
.chat-avatar--user { background: var(--indigo-soft); }
.assistant-message .chat-avatar,.control-msg .chat-avatar { width: 40px; height: 40px; }
.chat-avatar--rank-1 { background: var(--surface); border: 2px solid #75654f; box-shadow: 0 0 0 2px #d8cbb9; }
.chat-avatar--rank-2 { background: var(--surface); border: 2px solid #69728f; box-shadow: 0 0 0 2px #c9ccda; }
.chat-avatar--rank-3 { background: var(--surface); border: 2px solid #c4553e; box-shadow: 0 0 0 2px #e7b9ac; }
.chat-avatar--rank-4 { background: var(--surface); border: 2px double #4f5b84; box-shadow: 0 0 0 2px #b9bfd2; }
.chat-avatar--rank-5 { background: #efd4ca; border: 2px double #a94734; box-shadow: 0 0 0 3px #f3e5dd; }
.chat-avatar--rank-6 { background: #e4ded2; border: 3px solid #665c4d; box-shadow: 0 0 0 2px #c9bfaf; }
.chat-avatar--rank-7 { background: var(--surface); border: 3px solid #303b67; box-shadow: 0 0 0 2px #aeb5cf; }
.chat-avatar--rank-8 { background: #ecd1c7; border: 3px double #963d2d; box-shadow: 0 0 0 3px #f2e1da; }
.chat-avatar--rank-9 { background: var(--surface); border: 3px double #222d59; box-shadow: 0 0 0 3px #bec3d7; }
.chat-avatar--rank-10 { background: var(--action-bg); border: 3px double var(--vermilion); box-shadow: 0 0 0 3px #e7b4a7; }
.ai-greeting .chat-avatar--ai.avatar--greeting { width: 46px; height: 46px; border: 2px solid var(--indigo-soft); }

.home-triad .ai-quick-chat .ai-message { display: flex; gap: .6rem; align-items: flex-start; padding: .8rem 0; border-bottom: 1px solid var(--border); }
.home-triad .ai-quick-chat .ai-message__bubble { min-width: 0; max-width: 86%; padding: .55rem .7rem; line-height: 1.6; }
.home-triad .ai-quick-chat .ai-message p { margin: .3rem 0 0; line-height: 1.6; }
.home-triad .ai-quick-chat .ai-message--assistant .ai-message__bubble { background: var(--paper); border: 1px solid var(--border); border-radius: 2px 12px 12px 12px; }
.home-triad .ai-quick-chat .ai-message--assistant strong { color: var(--vermilion); }
.home-triad .ai-quick-chat .ai-message--user { flex-direction: row-reverse; padding-left: 0; }
.home-triad .ai-quick-chat .ai-message--user .ai-message__bubble { background: var(--indigo-soft); border-radius: 12px 2px 12px 12px; }
.home-triad .ai-quick-chat .ai-message--user strong { color: var(--indigo); }

/* ---- growth 左侧段位面板：纸本工笔段位形象 ---- */
.rank-ledger__identity .rank-legacy-figure { position: relative; width: min(100%,230px); aspect-ratio: 4 / 5; display: grid; place-items: center; margin: .95rem auto 1.1rem; overflow: hidden; background: var(--paper); border: 1px solid rgba(255,255,255,.42); border-radius: 2px; }
.rank-portrait-image--growth { width: 100%; height: 100%; object-fit: cover; object-position: center; clip-path: inset(0 0 14% 0); transform: translateY(8px); }

/* ---- growth 段位路线图（10 段位 + 分数）---- */
.rank-ladder { margin-top: 1.1rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.rank-ladder__track { position: relative; display: grid; grid-template-columns: repeat(10, 1fr); }
.rank-ladder__track::before { content: ""; position: absolute; left: 12px; right: 12px; top: 15px; height: 2px; background: var(--border-strong); }
.rank-ladder__step { min-width: 0; display: grid; justify-items: center; gap: .3rem; padding: .35rem 0 .15rem; text-align: center; }
.rank-ladder__node { width: 22px; height: 22px; display: grid; place-items: center; border-radius: 50%; background: var(--surface); border: 2px solid var(--border-strong); color: var(--ink-3); font-size: .62rem; font-weight: 800; }
.rank-ladder__step strong { font-size: .66rem; color: var(--ink-3); white-space: nowrap; }
.rank-ladder__step small { font-size: .56rem; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.rank-ladder__step--done .rank-ladder__node { border-color: var(--indigo); background: var(--action-bg); color: var(--on-action); }
.rank-ladder__step--done strong, .rank-ladder__step--done small { color: var(--indigo); }
.rank-ladder__step--current .rank-ladder__node { border-color: var(--vermilion); background: var(--accent-bg); color: var(--on-action); box-shadow: 0 0 0 3px var(--vermilion-soft); }
.rank-ladder__step--current strong { color: var(--vermilion); font-weight: 800; }
.rank-ladder__step--current small { color: var(--vermilion); font-weight: 700; }

@media (max-width: 767px) {
    .rank-ladder__track { grid-template-columns: repeat(5, 1fr); row-gap: .55rem; }
    .rank-ladder__track::before { display: none; }
    .rank-ledger__identity .rank-legacy-figure { width: min(74vw,260px); }
}

@media (prefers-reduced-motion: reduce) {
    .rank-portrait-image { opacity: 1; clip-path: inset(0); transform: none; transition: none; }
}

/* ============================================================
   2026-08-29 · 十级科举档案长卷
   ============================================================ */
.rank-archive { grid-template-columns: minmax(240px,.72fr) minmax(560px,1.65fr) minmax(280px,.88fr); align-items: stretch; }
.rank-archive > div { padding: clamp(1.1rem,2.2vw,1.8rem); }
.rank-archive .rank-ledger__identity { display: flex; flex-direction: column; }
.rank-archive .rank-ledger__identity h2 { font-size: clamp(3rem,4.6vw,4.8rem); }
.rank-identity-metrics { display: grid; grid-template-columns: 1fr 1fr; margin-top: auto; border-top: 1px solid rgba(255,255,255,.32); border-bottom: 1px solid rgba(255,255,255,.32); }
.rank-identity-metrics span { padding: .75rem .35rem; color: rgba(255,255,255,.78); font-size: .76rem; }
.rank-identity-metrics span + span { border-left: 1px solid rgba(255,255,255,.25); }
.rank-identity-metrics strong { display: block; margin-top: .18rem; color: var(--on-action); font: 700 1.35rem Georgia,serif; font-variant-numeric: tabular-nums; }
.rank-next-progress { display: grid; grid-template-columns: auto minmax(180px,1fr); align-items: center; gap: 1rem; padding: .85rem 0; border-top: 1px solid var(--border); }
.rank-next-progress > span { color: var(--ink-2); font-size: .78rem; }
.rank-scroll { position: relative; overflow: visible; }
.rank-archive .rank-ladder { margin: .25rem 0 0; padding: 1rem 0 .85rem; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.rank-archive .rank-ladder__track { gap: .1rem; }
.rank-archive .rank-ladder__track::before { top: 22px; left: 4%; right: 4%; background: var(--border-strong); }
.rank-archive .rank-ladder__step { position: relative; z-index: 1; width: 100%; min-height: 66px; margin: 0; padding: .15rem .05rem; border: 0; background: transparent; color: var(--ink-3); cursor: pointer; font: inherit; }
.rank-archive .rank-ladder__step:hover,
.rank-archive .rank-ladder__step:focus-visible { color: var(--indigo); background: transparent; transform: translateY(-3px); }
.rank-archive .rank-ladder__step:focus-visible { outline: 2px solid var(--vermilion); outline-offset: 3px; }
.rank-archive .rank-ladder__node { width: 30px; height: 30px; background: var(--surface); font-size: .72rem; }
.rank-archive .rank-ladder__step strong { font-size: .7rem; }
.rank-archive .rank-ladder__step small { font-size: .61rem; }
.rank-ladder__step--reached .rank-ladder__node { border-color: var(--indigo); background: var(--action-bg); color: var(--on-action); }
.rank-ladder__step--reached strong { color: var(--indigo); }
.rank-ladder__step--current .rank-ladder__node { border-color: var(--vermilion); background: var(--accent-bg); color: var(--on-action); box-shadow: 0 0 0 4px var(--vermilion-soft); }
.rank-ladder__step--current strong,.rank-ladder__step--current small { color: var(--vermilion); }
.rank-ladder__step--next .rank-ladder__node { border-color: var(--vermilion); color: var(--vermilion); }
.rank-ladder__button.is-selected::after { content: ""; position: absolute; left: 50%; bottom: -14px; width: 1px; height: 14px; background: var(--accent-bg); }
.rank-tooltip { position: absolute; z-index: 5; right: 1.8rem; top: 8.8rem; max-width: 28rem; padding: .45rem .65rem; background: var(--action-bg); color: var(--on-action); border: 1px solid var(--indigo); font-size: .7rem; box-shadow: 4px 6px 16px rgba(37,40,58,.12); }
.rank-dossier { display: grid; grid-template-columns: minmax(125px,.4fr) minmax(0,1fr); gap: 1.2rem; min-height: 285px; padding-top: 1.2rem; }
.rank-dossier > figure { min-height: 250px; margin: 0; overflow: hidden; background: var(--paper); border: 1px solid var(--border); }
.rank-dossier > figure img { width: 100%; height: 100%; max-height: 285px; object-fit: cover; object-position: center; clip-path: inset(0 0 13% 0); transform: translateY(6px); }
.rank-dossier__copy { min-width: 0; }
.rank-dossier__heading { display: flex; align-items: flex-start; justify-content: space-between; gap: .8rem; padding-bottom: .75rem; border-bottom: 2px solid var(--indigo); }
.rank-dossier__heading h4 { margin: .22rem 0 0; color: var(--indigo); font: 700 clamp(2rem,3.2vw,3.25rem)/1 Georgia,"Microsoft YaHei",serif; }
.rank-state-badge { flex: none; padding: .3rem .5rem; border: 1px solid var(--border-strong); color: var(--ink-2); font-size: .68rem; }
.rank-state-badge--current,.rank-state-badge--next { border-color: var(--vermilion); color: var(--vermilion); }
.rank-state-badge--reached { border-color: var(--indigo); color: var(--indigo); }
.rank-positioning { display: block; margin-top: .8rem; color: var(--vermilion); font-size: .95rem; }
.rank-dossier__copy > p { margin: .45rem 0; color: var(--ink-2); line-height: 1.65; }
.rank-dossier__copy .rank-capability { padding: .6rem .7rem; background: var(--paper); color: var(--indigo); font-weight: 700; }
.rank-dossier__facts { display: grid; grid-template-columns: repeat(2,1fr); margin: .75rem 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.rank-dossier__facts > div { padding: .55rem .2rem; }
.rank-dossier__facts > div + div { padding-left: .8rem; border-left: 1px solid var(--border); }
.rank-dossier__facts dt { color: var(--ink-3); font-size: .68rem; }
.rank-dossier__facts dd { margin: .18rem 0 0; color: var(--indigo); font: 700 1.05rem Georgia,"Microsoft YaHei",serif; }
.rank-dossier__close { display: none; }
.rank-condition-list { display: grid; gap: .15rem; margin-top: 1rem; }
.rank-condition-list p { display: grid; grid-template-columns: 2.4rem 1fr; align-items: start; gap: .65rem; margin: 0; padding: .75rem 0; border-bottom: 1px solid var(--border); color: var(--ink-2); line-height: 1.6; }
.rank-condition-list p span { color: var(--vermilion); font-size: .66rem; font-weight: 800; }
.rank-condition-list p.is-met span { color: var(--indigo); }
.rank-advice-divider { display: flex; align-items: center; gap: .6rem; margin-top: 1.35rem; color: var(--ink-3); font-size: .66rem; }
.rank-advice-divider::after { content: ""; height: 1px; flex: 1; background: var(--border); }

@media (max-width: 1199px) and (min-width: 768px) {
    .rank-archive { grid-template-columns: minmax(230px,.72fr) minmax(0,1.5fr); }
    .rank-archive .rank-ledger__advice { grid-column: 1/-1; }
    .rank-dossier { grid-template-columns: 150px minmax(0,1fr); }
}

/* 阅读库存只在“换文章与设置”中解释，不抢占主题面。 */
.reading-inventory { margin: 1.1rem 0; padding: 1rem 0; border-top: 2px solid var(--indigo); border-bottom: 1px solid var(--border); }
.reading-inventory h2 { margin: .15rem 0 .7rem; font-size: 1.05rem; }
.reading-inventory__numbers { display: flex; align-items: baseline; gap: .35rem; }
.reading-inventory__numbers strong { color: var(--indigo); font: 700 2rem Georgia,serif; font-variant-numeric: tabular-nums; }
.reading-inventory__numbers span { color: var(--ink-3); font-size: .72rem; }
.reading-inventory .progress-track { margin: .5rem 0; }
.reading-inventory > p { margin: .5rem 0 .75rem; color: var(--ink-3); font-size: .7rem; line-height: 1.55; }
.reading-inventory .btn { width: 100%; min-height: 44px; }
.reading-source-link { display: inline-block; margin-top: .35rem; color: var(--indigo); font-size: .72rem; text-decoration: underline; text-underline-offset: 3px; }
.reading-source-meta { margin-top: .45rem; max-width: 52rem; font-size: .72rem; color: var(--ink-muted); }
.reading-source-meta summary { cursor: pointer; color: var(--indigo); }
.reading-source-meta dl { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: .25rem .8rem; margin: .45rem 0 0; }
.reading-source-meta dl div:last-child { grid-column: 1 / -1; }
.reading-source-meta dt { display: inline; font-weight: 700; color: var(--ink); }
.reading-source-meta dd { display: inline; margin-left: .35rem; }

@media (max-width: 767px) {
    .rank-archive { grid-template-columns: 1fr; }
    .rank-next-progress { grid-template-columns: 1fr; gap: .45rem; }
    .rank-archive .rank-ladder { overflow-x: auto; padding-bottom: 1rem; scrollbar-width: thin; }
    .rank-archive .rank-ladder__track { width: 720px; grid-template-columns: repeat(10,1fr); row-gap: 0; }
    .rank-archive .rank-ladder__track::before { display: block; }
    .rank-archive .rank-ladder__step { min-height: 72px; }
    .rank-tooltip { display: none; }
    .rank-dossier { display: none; position: fixed; z-index: 81; left: 0; right: 0; bottom: 0; max-height: 75dvh; grid-template-columns: 92px minmax(0,1fr); gap: .8rem; padding: 3rem 1rem calc(1rem + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); overflow-y: auto; background: var(--surface); border-top: 4px solid var(--indigo); box-shadow: 0 -12px 36px rgba(37,40,58,.2); }
    .rank-dossier.is-open { display: grid; }
    .rank-dossier > figure { min-height: 145px; }
    .rank-dossier > figure img { max-height: 180px; }
    .rank-dossier__heading h4 { font-size: 2.15rem; }
    .rank-dossier__close { position: absolute; top: .6rem; right: .8rem; display: block; min-width: 52px; min-height: 36px; border: 1px solid var(--border-strong); background: var(--paper); color: var(--indigo); font: inherit; font-size: .7rem; }
    body.rank-dossier-open { overflow: hidden; }
    body.rank-dossier-open::before { content: ""; position: fixed; z-index: 80; inset: 0; background: rgba(37,40,58,.36); }
    .rank-dossier .threshold-list,.rank-dossier__facts { grid-column: 1/-1; }
}
/* ============================================================
   2026-08-22 · 单词专练（选词填空）
   ============================================================ */
.cloze-workbench { display: grid; grid-template-columns: minmax(0,1.55fr) minmax(270px,.65fr); gap: 1rem; align-items: start; }
.cloze-passage { min-width: 0; padding: 1.4rem; background: var(--surface); border: 1px solid var(--border-strong); }
.cloze-content { margin-top: 1.1rem; color: var(--ink-2); font-size: 1.02rem; line-height: 2.2; }
.cloze-gap { display: inline-flex; align-items: center; gap: .35rem; margin: 0 .18rem; padding: .15rem .3rem .15rem .45rem; vertical-align: baseline; background: var(--paper); border-bottom: 2px solid var(--vermilion); }
.cloze-gap__base { color: var(--indigo); font-weight: 700; font-size: .8rem; line-height: 1; }
.cloze-input { width: 9ch; min-height: 28px; padding: .15rem .3rem; border: 1px solid var(--border-strong); background: var(--surface-strong); text-align: center; font: inherit; font-size: .92rem; }
.cloze-input:focus-visible { outline: 2px solid var(--vermilion); outline-offset: 1px; }
.cloze-gap small { display: block; color: var(--ink-3); font-size: .6rem; }
.cloze-input.is-correct { border-color: var(--success); background: var(--surface); }
.cloze-input.is-wrong { border-color: var(--danger); background: var(--surface); }
.cloze-side { min-width: 0; padding: 1.2rem; background: var(--surface); border: 1px solid var(--border); }
.cloze-bank { margin: 1rem 0 .6rem; display: flex; flex-wrap: wrap; gap: .5rem; }
.bank-chip { min-height: 36px; padding: .35rem .62rem; border: 1px solid var(--border-strong); background: var(--paper); color: var(--indigo); cursor: pointer; font: inherit; }
.bank-chip:hover { border-color: var(--vermilion); color: var(--vermilion); }
.cloze-result { margin: .9rem 0; padding: .8rem; background: var(--paper); border: 1px solid var(--border-strong); }
.cloze-result p { margin: 0; }
.cloze-result strong { color: var(--vermilion); font-variant-numeric: tabular-nums; }
.cloze-result__list { margin-top: .5rem; font-size: .76rem; color: var(--ink-3); line-height: 1.7; }

@media (max-width: 767px) {
    .cloze-workbench { grid-template-columns: 1fr; }
    .cloze-content { font-size: 1rem; line-height: 2.1; }
}
/* ============================================================
   2026-08-23 · 控制台（工作台）
   ============================================================ */
.control-workbench { display: grid; grid-template-columns: var(--sidebar-w, 220px) 8px minmax(0,1fr) 8px var(--preview-w, 340px); gap: 0 1rem; align-items: stretch; min-height: calc(100dvh - 200px); }
.control-resizer { cursor: col-resize; background: var(--border); align-self: stretch; }
.control-resizer:hover { background: var(--accent-bg); }
@media (max-width: 767px) { .control-resizer { display: none; } }
.control-sidebar, .control-chat, .control-preview { min-width: 0; background: var(--surface); border: 1px solid var(--border); }
.control-sidebar { display: flex; flex-direction: column; padding: 1rem; }
.control-panel-head { display: flex; justify-content: space-between; align-items: center; gap: .6rem; margin-bottom: .6rem; }
.control-panel-head h2 { margin: 0; font-size: 1rem; }
.control-categories { display: grid; gap: .15rem; margin-bottom: 1rem; }
.cat-item { padding: .45rem .6rem; cursor: pointer; border-radius: 4px; }
.cat-item:hover { background: var(--paper); }
.cat-item.is-active { background: var(--indigo-soft); color: var(--indigo); }
.cat-item--child { padding-left: 1.4rem; font-size: .82rem; }
.cat-item b { font-weight: 600; }
.control-notes { overflow: auto; max-height: 60vh; display: grid; gap: .25rem; }
.note-item { padding: .5rem .6rem; border-bottom: 1px solid var(--border); cursor: pointer; }
.note-item:hover { background: var(--paper); }
.note-item.is-active { outline: 1px solid var(--vermilion); outline-offset: -1px; background: var(--paper); }
.note-item b { display: block; color: var(--ink); font-size: .86rem; }
.note-item span { color: var(--ink-3); font-size: .68rem; }
.control-chat { display: flex; flex-direction: column; min-height: 70dvh; }
.control-chat__head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1rem; border-bottom: 1px solid var(--border); }
.control-chat__head h2 { margin: 0; }
.control-chat__head-actions { display: flex; align-items: center; gap: .65rem; }
.control-assistant-scenes { margin: 0; padding: .7rem 1rem; }
.control-chat__context { color: var(--muted); font-size: .72rem; }
.control-chat__context.is-bound { color: var(--indigo); }
.control-chat__context.is-error { color: var(--vermilion); }
.control-messages { flex: 1; overflow: auto; padding: 1rem; display: flex; flex-direction: column; gap: .85rem; }
.control-msg { width: min(88%,720px); display: flex; align-items: flex-start; gap: .65rem; }
.control-msg--user { flex-direction: row-reverse; align-self: flex-end; }
.control-msg__bubble { min-width: 0; padding: .75rem .9rem; background: var(--paper); border: 1px solid var(--border); border-radius: 2px 14px 14px 14px; }
.control-msg--user .control-msg__bubble { background: var(--indigo-soft); border-color: #bcc0d2; border-radius: 14px 2px 14px 14px; }
.control-msg strong { color: var(--vermilion); font-size: .74rem; display: block; }
.control-msg--user strong { color: var(--indigo); }
.control-msg p { margin: .25rem 0 0; line-height: 1.65; overflow-wrap: anywhere; }
.control-composer { display: grid; grid-template-columns: 1fr auto; gap: .6rem; padding: .8rem; border-top: 1px solid var(--border); }
.control-composer textarea { min-height: 46px; padding: .6rem; border: 1px solid var(--border-strong); background: var(--surface-strong); font: inherit; resize: vertical; }
.control-preview { display: flex; }
.control-note-editor { display: flex; flex-direction: column; gap: .7rem; padding: 1rem; width: 100%; }
.note-date-field { color: var(--ink-3); font-size: .72rem; }
.note-input { padding: .6rem; border: 1px solid var(--border-strong); background: var(--surface-strong); font: inherit; font-size: 1rem; }
.note-textarea { min-height: 46vh; padding: .6rem; border: 1px solid var(--border-strong); background: var(--surface-strong); font: inherit; resize: vertical; line-height: 1.7; }
.note-color-row { display: flex; gap: .5rem; }
.color-dot { width: 22px; height: 22px; border-radius: 50%; border: 2px solid var(--border-strong); cursor: pointer; }
.color-dot--black { background: var(--ink); }
.color-dot--blue { background: #2f4b9c; }
.color-dot--red { background: #c4553e; }
.color-dot.is-active { outline: 2px solid var(--vermilion); outline-offset: 2px; }
.control-note-editor .note-textarea { border-bottom: 3px solid var(--ink); }
.control-note-editor[data-color="blue"] .note-textarea { border-bottom: 3px solid #2f4b9c; }
.control-note-editor[data-color="red"] .note-textarea { border-bottom: 3px solid #c4553e; }
.note-actions { display: flex; gap: .6rem; }

@media (max-width: 1199px) {
    .control-workbench { grid-template-columns: minmax(180px,.6fr) minmax(0,1.4fr); }
    .control-preview { grid-column: 1/-1; }
}
@media (max-width: 767px) {
    .control-workbench { grid-template-columns: 1fr; }
    .control-sidebar { order: 2; }
    .control-chat { order: 1; }
    .control-preview { order: 3; }
    .control-notes { max-height: 40vh; }
}
@media (min-width: 768px) { .control-mobile-actions { display: none; } }
@media (max-width: 767px) {
    .control-mobile-actions { display: flex; gap: .4rem; }
    .control-sidebar { position: fixed; z-index: 45; top: 0; left: 0; bottom: 0; width: 76vw; max-width: 320px; transform: translateX(-100%); transition: transform .22s var(--ease-out); background: var(--surface); box-shadow: var(--shadow-lift); }
    .control-sidebar.is-open { transform: translateX(0); }
    .control-preview { position: fixed; z-index: 45; inset: 0; background: var(--surface); display: none; overflow: auto; }
    .control-preview.is-open { display: flex; }
}

.control-composer { display: flex; flex-direction: column; gap: .6rem; }
.control-attachments { display: flex; flex-wrap: wrap; gap: .4rem; }
.control-attachment { display: inline-flex; align-items: center; gap: .4rem; padding: .3rem .55rem; background: var(--paper); border: 1px solid var(--border-strong); font-size: .78rem; }
.control-attachment button { border: 0; background: transparent; color: var(--vermilion); cursor: pointer; font-size: .9rem; line-height: 1; }
.control-composer__row { display: flex; gap: .6rem; }
.control-vision-note { margin: 0; color: var(--ink-3); font-size: .76rem; line-height: 1.5; }
/* ============================================================
   2026-08-23 · 阅读答题卡弹窗
   ============================================================ */
.questions-head { display: flex; justify-content: space-between; align-items: center; gap: .6rem; }
.questions-head h2 { margin: 0; }
.answer-choice { margin-top: .5rem; padding: .5rem .6rem; border: 1px dashed var(--border-strong); background: var(--paper); color: var(--indigo); font-size: .82rem; cursor: pointer; }
.answer-choice:hover { border-color: var(--vermilion); }
.answer-card-box { width: min(760px, 96vw); max-height: 82vh; overflow: auto; }
.answer-card-q { padding: .9rem 0; border-bottom: 1px solid var(--border); }
.answer-card-q:last-child { border-bottom: 0; }
.answer-card-q__head { display: grid; gap: .25rem; margin-bottom: .6rem; }
.answer-card-q__head b { color: var(--ink); }
.answer-card-q .quiz-options { margin-top: 0; }
.quiz-opt-btn.is-selected { color: var(--on-action); background: var(--action-bg); border-color: var(--indigo); }
/* ============================================================
   2026-08-23 · 阅读句子标注（做题=绿 / 陌生=红 / 擦除）
   ============================================================ */
.mark-toolbar { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin-bottom: 12px; padding: .6rem .7rem; background: var(--paper); border: 1px solid var(--border); border-radius: 6px; }
.mark-toolbar__label { color: var(--ink-2); font-size: .72rem; font-weight: 700; }
.mark-btn { min-height: 30px; padding: .25rem .6rem; border: 1px solid var(--border-strong); background: var(--surface); color: var(--ink-2); cursor: pointer; font: inherit; font-size: .76rem; }
.mark-btn:hover { border-color: var(--vermilion); }
.mark-btn.is-active { color: var(--on-action); border-color: var(--vermilion); background: var(--accent-bg); }
.mark-btn--green.is-active { border-color: #2f9e5f; background: #2f9e5f; }
.mark-btn--red { color: var(--danger); }
.article-word-ann { border-radius: 2px; padding: 0 1px; cursor: pointer; }
.article-word-ann:hover { background: var(--indigo-soft); }
.article-word-ann.mark-green { background: rgba(47,158,95,.28); box-shadow: inset 0 -2px 0 rgba(47,158,95,.9); }
.article-word-ann.mark-red { background: rgba(196,85,62,.26); box-shadow: inset 0 -2px 0 rgba(196,85,62,.9); }
.article-word-ann.mark-both { background: var(--indigo-soft); box-shadow: inset 0 -2px 0 var(--indigo); text-decoration: underline dashed var(--vermilion); text-underline-offset: .22em; }
/* ===== 控制台（工作台）桌面端紧凑化：填满视口、去除大留白 ===== */
.control-page { width: min(calc(100% - 1rem), 1480px); }
.control-page .page-heading { padding: .7rem 0 .6rem; margin-bottom: .7rem; }
.control-page .page-heading h1 { font-size: clamp(1.5rem, 2.4vw, 2.4rem); line-height: 1.04; }
.control-page .page-heading p { font-size: .84rem; margin-top: .4rem; }
.control-workbench { min-height: calc(100dvh - 140px); }
.control-sidebar { padding: .8rem .9rem; }
.control-chat { min-height: calc(100dvh - 140px); }
.control-notes { max-height: none; flex: 1; overflow: auto; }
.control-note-editor { height: 100%; }
.control-note-editor .note-textarea { flex: 1; min-height: 0; }
.control-messages { min-height: 0; flex: 1; }
.control-preview { overflow: auto; }

.grade-comments { margin-top: 1rem; padding-top: .8rem; border-top: 2px solid var(--indigo); }
.grade-comment { padding: .6rem .7rem; margin-top: .5rem; border: 1px solid var(--border-strong); background: var(--paper); }
.grade-comment b { font-size: .8rem; display: block; }
.grade-comment p { margin: .3rem 0 0; color: var(--ink-2); font-size: .8rem; line-height: 1.6; }
.grade-comment.is-correct { border-color: var(--success); }
.grade-comment.is-correct b { color: var(--success); }
.grade-comment.is-wrong { border-color: var(--danger); }
.grade-comment.is-wrong b { color: var(--danger); }

/* ============================================================
   2026-08-28 · 非首页训练工作台统一精修
   保留既有大区骨架，只收敛题面、状态与移动优先级。
   ============================================================ */
.topbar-greet { margin: 0; color: var(--indigo); font: 700 clamp(1.45rem,2.4vw,2.2rem)/1.1 Georgia,"Microsoft YaHei UI",serif; }
.dashboard .queue-word { width: 100%; min-height: 44px; display: flex; border: 0; border-bottom: 1px solid var(--border); background: transparent; color: inherit; font: inherit; text-align: left; }
.dashboard .queue-word:focus-visible { position: relative; z-index: 1; }
.dashboard .panel > [x-show] { max-width: 900px; margin-inline: auto; }
.dashboard .quiz-options { display: grid; gap: .7rem; }
.dashboard .quiz-opt-btn { min-height: 58px; display: grid; grid-template-columns: 2.4rem minmax(0,1fr); align-items: center; gap: .8rem; padding: .8rem 1rem; text-align: left; }
.dashboard .opt-letter { width: 2rem; height: 2rem; display: grid; place-items: center; border: 1px solid var(--border-strong); color: var(--indigo); font: 700 1rem Georgia,serif; }
.dashboard .opt-text { min-width: 0; display: grid; gap: .28rem; }
.dashboard .opt-sense { display: block; line-height: 1.55; }
.dashboard .opt-sense + .opt-sense { padding-top: .28rem; border-top: 1px solid var(--border); }
.dashboard .quiz-opt-btn.correct .opt-letter { color: var(--on-action); background: var(--action-bg); border-color: var(--indigo); }
.dashboard .quiz-opt-btn.wrong .opt-letter { color: var(--on-action); background: var(--accent-bg); border-color: var(--vermilion); }
.answer-followup { margin-top: 1.2rem; padding: 1rem; border-block: 1px solid var(--border); background: var(--paper); }
.answer-followup h2 { margin: .15rem 0 .8rem; font-size: 1rem; }
.answer-followup .status-pills { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: .45rem; }
.answer-followup .status-pill { min-height: 44px; border-radius: 0; }
.answer-followup__actions { display: flex; align-items: center; justify-content: space-between; gap: .7rem; margin-top: .8rem; }
.study-card-primary-actions { display: flex; gap: .65rem; margin-top: .8rem; }
.study-card-primary-actions .btn-act { flex: 1; width: 100%; min-height: 52px; justify-content: center; }
.study-card-sentences { margin-top: .8rem; border-top: 1px solid var(--border); }
.study-card-sentences summary,.rule-details summary { min-height: 44px; display: flex; align-items: center; color: var(--indigo); font-weight: 800; cursor: pointer; }
.spelling-input { min-height: 48px; }
.review-tabs .review-tab { width: 100%; min-height: 48px; border: 0; border-bottom: 1px solid var(--border); font: inherit; cursor: pointer; }
.review-mode-summary { display: grid; gap: .25rem; margin-top: .7rem; padding: .75rem; background: var(--paper); border-block: 1px solid var(--border); color: var(--ink-2); font-size: .78rem; }
.review-mode-summary strong,.review-mode-summary b { color: var(--indigo); }
.rule-details p { margin: 0 0 .8rem; color: var(--ink-3); font-size: .76rem; line-height: 1.65; }
.rating-key,.btn-fav-toggle,.btn-slay { min-height: 44px; }

.practice-context-bar { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; padding-bottom: 1rem; border-bottom: 2px solid var(--indigo); }
.practice-context-bar--stacked { display: grid; }
.practice-context-bar h2 { margin: .12rem 0 .3rem; color: var(--indigo); font: 700 clamp(1.5rem,3vw,2.4rem)/1.15 Georgia,"Microsoft YaHei UI",serif; }
.practice-context-bar p { margin: 0; color: var(--ink-3); }
.practice-choice-list { display: grid; gap: .6rem; margin-top: .8rem; }
.choice-button { width: 100%; min-height: 56px; display: grid; grid-template-columns: 2.4rem minmax(0,1fr); align-items: center; gap: .75rem; padding: .75rem .9rem; color: var(--ink); text-align: left; font: inherit; cursor: pointer; }
.choice-button__letter { width: 2rem; height: 2rem; display: grid; place-items: center; border: 1px solid var(--border-strong); color: var(--indigo); font: 700 1rem Georgia,serif; }
.choice-button__copy { min-width: 0; line-height: 1.55; }
.choice-button.is-selected { color: var(--indigo); background: var(--indigo-soft); border-color: var(--indigo); }
.choice-button.is-selected .choice-button__letter { color: var(--on-action); background: var(--action-bg); border-color: var(--indigo); }
.choice-button.is-correct { color: var(--on-action); background: var(--action-bg); border-color: var(--indigo); }
.choice-button.is-wrong { color: var(--on-action); background: var(--accent-bg); border-color: var(--vermilion); }
.task-state { min-height: 1.5rem; margin: -.8rem 0 1rem; color: var(--ink-3); font-size: .78rem; text-align: center; }

.focus-shell--reading { grid-template-columns: minmax(250px,.62fr) minmax(0,2.1fr); }
.focus-shell--reading .focus-stage { padding: clamp(1.2rem,2.5vw,2.2rem); }
.topic-tags { display: flex; flex-wrap: wrap; gap: .4rem; }
.topic-tag { min-height: 44px; padding: .55rem .75rem; border: 1px solid var(--border); background: transparent; color: var(--ink-2); font: inherit; cursor: pointer; }
.topic-tag.active,.topic-tag[aria-pressed="true"] { color: var(--on-action); background: var(--action-bg); border-color: var(--indigo); }
.article-list { display: grid; gap: .35rem; }
.article-item { width: 100%; min-height: 58px; display: grid; gap: .25rem; padding: .7rem; border: 1px solid transparent; border-bottom-color: var(--border); background: transparent; color: inherit; text-align: left; font: inherit; cursor: pointer; }
.article-item:hover,.article-item[aria-current="true"] { border-color: var(--indigo); background: var(--paper); }
.article-item-title { color: var(--ink); font-weight: 800; }
.article-item-meta { display: flex; flex-wrap: wrap; gap: .7rem; color: var(--ink-3); font-size: .72rem; }

@media (min-width: 768px) {
    .reading-settings .article-list {
        max-block-size: clamp(22rem,52dvh,34rem);
        overflow-y: auto;
        overscroll-behavior: contain;
        scrollbar-gutter: stable;
        scrollbar-color: var(--indigo) var(--paper-deep);
        scrollbar-width: thin;
        padding-inline-end: .35rem;
    }
    .reading-settings .article-list::-webkit-scrollbar { width: 8px; }
    .reading-settings .article-list::-webkit-scrollbar-track { background: var(--paper-deep); }
    .reading-settings .article-list::-webkit-scrollbar-thumb { background: var(--action-bg); border: 2px solid var(--paper-deep); }
}

.difficulty-prompt { z-index: calc(var(--z-modal) + 4); }
.difficulty-prompt__card { width: min(520px,100%); border-top: 4px solid var(--indigo); }
.difficulty-prompt__label { margin: 0 0 .55rem; color: var(--vermilion); font-size: .74rem; font-weight: 800; letter-spacing: .12em; }
.difficulty-prompt__card h2 { margin: 0; font: 700 clamp(1.45rem,5vw,2rem)/1.18 Georgia,"Microsoft YaHei UI",serif; }
.difficulty-prompt__card > p:last-of-type { margin: .9rem 0 0; color: var(--ink-2); line-height: 1.75; }
.difficulty-prompt__actions { display: flex; justify-content: flex-end; gap: .7rem; margin-top: 1.35rem; }
.difficulty-prompt__actions .btn { min-height: 48px; }
.training-difficulty { scroll-margin-top: 104px; }

.settings-section--sync { align-items: start; }
.device-sync-panel { display: grid; gap: 1rem; }
.device-sync-state { display: grid; grid-template-columns: 14px 1fr; gap: .8rem; align-items: start; padding: .85rem 0; border-block: 1px solid var(--border); }
.device-sync-state > span { width: 12px; height: 12px; margin-top: .3rem; border: 2px solid var(--indigo); border-radius: 50%; background: var(--paper); }
.device-sync-state[data-state="waiting"] > span,.device-sync-state[data-state="preview"] > span { background: var(--accent-bg); border-color: var(--vermilion); }
.device-sync-state[data-state="completed"] > span { background: var(--action-bg); }
.device-sync-state[data-state="error"] > span { border-color: var(--danger); background: var(--danger); }
.device-sync-state p { margin: .25rem 0 0; color: var(--ink-2); line-height: 1.65; }
.device-sync-pairing { display: grid; grid-template-columns: minmax(180px,220px) 1fr; gap: 1.2rem; align-items: start; padding: 1rem; background: var(--paper); border: 1px solid var(--border); }
.device-sync-pairing img { width: 100%; aspect-ratio: 1; object-fit: contain; border: 8px solid #fff; }
.device-sync-panel label { display: block; margin: .8rem 0 .35rem; font-weight: 800; }
.device-sync-panel textarea { width: 100%; min-height: 86px; resize: vertical; padding: .7rem; border: 1px solid var(--border-strong); background: var(--surface-strong); color: var(--ink); font: 600 .72rem/1.45 ui-monospace,Consolas,monospace; overflow-wrap: anywhere; }
.device-sync-actions { display: flex; flex-wrap: wrap; gap: .65rem; margin-top: .8rem; }
.device-sync-preview { padding: 1rem; border-top: 3px solid var(--indigo); background: var(--paper); }
.device-sync-preview h3 { margin: 0; }
.device-sync-preview dl { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); margin: 1rem 0; border-block: 1px solid var(--border); }
.device-sync-preview dl div { padding: .7rem .45rem; }
.device-sync-preview dl div + div { border-left: 1px solid var(--border); }
.device-sync-preview dt { color: var(--ink-3); font-size: .7rem; }
.device-sync-preview dd { margin: .25rem 0 0; color: var(--indigo); font: 700 1.2rem Georgia,serif; font-variant-numeric: tabular-nums; }

@media (max-width: 767px) {
    .reading-settings .article-list { max-block-size: none; overflow: visible; padding-inline-end: 0; }
    .difficulty-prompt { place-items: end center; padding: 0; }
    .difficulty-prompt__card { width: 100%; max-height: calc(92dvh - var(--app-safe-top-inset,env(safe-area-inset-top))); border-radius: var(--radius-md) var(--radius-md) 0 0; padding: 22px 18px max(18px,var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
    .difficulty-prompt__actions { display: grid; grid-template-columns: 1fr; }
    .difficulty-prompt__actions .btn { width: 100%; }
    .device-sync-pairing { grid-template-columns: 1fr; }
    .device-sync-pairing img { width: min(240px,100%); margin-inline: auto; }
    .device-sync-actions { display: grid; grid-template-columns: 1fr; }
    .device-sync-actions .btn { width: 100%; min-height: 48px; }
    .device-sync-preview dl { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .device-sync-preview dl div + div { border-left: 0; }
    .device-sync-preview dl div:nth-child(even) { border-left: 1px solid var(--border); }
    .device-sync-preview dl div:nth-child(n+3) { border-top: 1px solid var(--border); }
}
.reading-task { max-width: 880px; margin-inline: auto; }
.reading-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem; }
.reading-toolbar .btn { min-width: 44px; padding-inline: .7rem; }
.reading-toolbar output { min-width: 52px; color: var(--ink-3); text-align: center; font-variant-numeric: tabular-nums; }
.reading-evidence-strip { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 1.2rem; margin: 1rem 0; padding: .9rem 1rem; border-block: 1px solid var(--border); background: var(--paper); }
.reading-evidence-strip div { display: grid; }
.reading-evidence-strip span { color: var(--ink-3); font-size: .72rem; }
.reading-evidence-strip strong { color: var(--indigo); font: 700 1.8rem Georgia,serif; }
.reading-evidence-strip p { margin: 0; color: var(--ink-2); font-size: .8rem; }
.mark-btn { min-height: 44px; border-radius: 0; }
.mark-btn[aria-pressed="true"],.mark-btn.is-active { color: var(--on-action); background: var(--action-bg); border-color: var(--indigo); }
.article-content { padding: clamp(1rem,3vw,2rem) 0; color: var(--ink); font-family: Georgia,"Microsoft YaHei UI",serif; line-height: 1.95; white-space: pre-line; }
.article-word-ann { border-radius: 0; outline-offset: 3px; }
.article-word-ann.mark-green { background: transparent; box-shadow: inset 0 -2px 0 var(--indigo); }
.article-word-ann.mark-red { background: transparent; box-shadow: inset 0 -2px 0 var(--vermilion); text-decoration: underline dashed var(--vermilion); text-underline-offset: .2em; }
.article-word-ann.mark-both { background: var(--indigo-soft); box-shadow: inset 0 -2px 0 var(--indigo); text-decoration: underline dashed var(--vermilion); text-underline-offset: .22em; }
.reading-question-section { margin-top: 1rem; padding-top: 1.2rem; border-top: 3px solid var(--indigo); }
.practice-question { min-width: 0; margin: 0; padding: 1.25rem 0; border: 0; border-bottom: 1px solid var(--border); }
.practice-question legend { width: 100%; display: grid; gap: .5rem; padding: 0; line-height: 1.55; }
.question-type { width: fit-content; padding: .2rem .45rem; border: 1px solid var(--border); color: var(--vermilion); font-size: .7rem; font-weight: 800; }
.reading-task-actions { position: sticky; bottom: 0; z-index: 8; display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1rem; padding: .8rem 0; background: var(--surface); border-top: 1px solid var(--border); }
.answer-progress-grid { display: grid; grid-template-columns: repeat(5,minmax(70px,1fr)); gap: .5rem; }
.answer-progress-item { min-height: 58px; display: grid; place-items: center; border: 1px solid var(--border); background: var(--paper); color: var(--ink-3); cursor: pointer; }
.answer-progress-item.is-complete { color: var(--on-action); background: var(--action-bg); border-color: var(--indigo); }
.lookup-result { display: grid; gap: .5rem; }
.lookup-result p,.lookup-result strong,.lookup-result small { margin: 0; }
.lookup-result strong { color: var(--indigo); font-size: 1rem; line-height: 1.7; }
.modal-overlay.is-open { display: flex; }
.modal-overlay[hidden] { display: none !important; }

.writing-workbench { width: min(1560px,calc(100% - 2rem)); grid-template-columns: minmax(500px,1.3fr) minmax(360px,.95fr) minmax(220px,.55fr); }
.writing-editor { display: flex; flex-direction: column; gap: .75rem; }
.writing-editor h1 { margin: .2rem 0 .5rem; }
.writing-standard-row { display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: end; gap: .8rem; }
.writing-standard-row select { width: 100%; min-height: 48px; }
.writing-ocr { border-block: 1px solid var(--border); padding-block: 1rem; margin-block: .75rem 1rem; }
.writing-ocr__heading { display: flex; align-items: center; justify-content: space-between; gap: .75rem; }
.writing-ocr__heading h2 { margin: .2rem 0 0; font-size: 1.05rem; }
.writing-ocr__heading > span { color: var(--ink-3); font-variant-numeric: tabular-nums; white-space: nowrap; }
.writing-ocr__actions { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: .75rem; margin-block: .75rem; }
.writing-ocr__actions .btn { width: 100%; min-height: 48px; padding-inline: .75rem; cursor: pointer; white-space: nowrap; }
.writing-ocr__state { margin-top: .75rem; }
.writing-ocr__state ul { margin: .5rem 0 0; padding-left: 1.2rem; }
.writing-word-target { min-height: 48px; display: grid; align-content: center; padding: .35rem .8rem; border: 1px solid var(--border); background: var(--paper); }
.writing-word-target span { color: var(--ink-3); font-size: .68rem; }
.writing-word-target strong { color: var(--indigo); font-variant-numeric: tabular-nums; }
.writing-textarea { flex: 1; min-height: 48vh; font: 1rem/1.8 Georgia,"Microsoft YaHei UI",serif; }
.writing-editor-state { display: flex; justify-content: space-between; gap: 1rem; color: var(--ink-3); font-size: .76rem; }
.essay-preview { display: grid; grid-template-columns: 100px 1fr; gap: .8rem; align-items: center; padding: .7rem; border: 1px solid var(--border); background: var(--paper); }
.essay-preview img { width: 100px; height: 76px; object-fit: cover; }
.essay-preview div { display: grid; gap: .2rem; }
.writing-result-stage { overflow: auto; }
.writing-result-stage > .empty-state { min-height: 280px; display: grid; place-content: center; align-self: start; }
.writing-workbench .focus-insight { background: var(--paper); }
.writing-report > header { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; padding-bottom: 1rem; border-bottom: 2px solid var(--indigo); }
.writing-report h2 { margin: .2rem 0; }
.writing-total-score { color: var(--vermilion); font: 700 clamp(3rem,7vw,5rem)/1 Georgia,serif; }
.writing-score-grid { display: grid; grid-template-columns: repeat(5,1fr); border-bottom: 1px solid var(--border); }
.writing-score-grid div { padding: 1rem .6rem; text-align: center; }
.writing-score-grid div + div { border-left: 1px solid var(--border); }
.writing-score-grid span { display: block; color: var(--ink-3); font-size: .72rem; }
.writing-score-grid strong { color: var(--indigo); font: 700 1.5rem Georgia,serif; }
.writing-report section { margin-top: 1.5rem; }
.writing-feedback-list { display: grid; gap: .6rem; }
.writing-feedback-list article { padding: .8rem 0; border-top: 1px solid var(--border); }
.writing-feedback-list strong,.writing-feedback-list span { display: block; }
.writing-feedback-list span { color: var(--ink-3); font-size: .78rem; }
.writing-report blockquote { margin: 1.5rem 0 0; padding: 1rem; border-block: 1px solid var(--border); color: var(--indigo); font-weight: 700; line-height: 1.7; }

.cloze-input { min-height: 44px; }
.cloze-gap.is-current { background: var(--indigo-soft); outline: 2px solid var(--indigo); outline-offset: 2px; }
.bank-chip { min-height: 44px; }
.bank-chip.is-used { color: var(--ink-3); background: var(--border); text-decoration: line-through; }
.cloze-side #cloze-submit { position: sticky; bottom: 0; }
.cloze-result__details { display: grid; gap: .5rem; }
.cloze-result__details article { display: grid; gap: .18rem; padding: .7rem; border: 1px solid var(--border); background: var(--surface); }
.cloze-result__details article.is-wrong { border-color: var(--vermilion); }
.cloze-result__details span,.cloze-result__details small { color: var(--ink-2); }

.training-directory__grid a.is-recommended { border-color: var(--vermilion); box-shadow: inset 0 3px 0 var(--vermilion); }
.training-recommend-action { display: block; margin-top: auto; padding-top: .7rem; color: var(--vermilion); border-top: 1px solid var(--border); font-weight: 800; }
.control-inline-form { display: grid; gap: .45rem; margin-bottom: .8rem; padding: .7rem; border: 1px solid var(--border); background: var(--paper); }
.control-inline-form[hidden] { display: none; }
.control-inline-form label { color: var(--ink-3); font-size: .7rem; font-weight: 800; }
.control-inline-form input,.control-inline-form select { min-height: 44px; padding: .55rem; border: 1px solid var(--border-strong); background: var(--surface); font: inherit; }
.control-inline-form > div { display: flex; gap: .4rem; }
.control-inline-form p { margin: 0; color: var(--vermilion); font-size: .72rem; }
.cat-item,.note-item { width: 100%; min-height: 44px; display: block; border: 0; border-bottom: 1px solid var(--border); background: transparent; color: inherit; font: inherit; text-align: left; }
.control-workbench { height: calc(100dvh - 140px); min-height: 620px; }
.control-sidebar,.control-chat,.control-preview { min-height: 0; overflow: hidden; }
.control-sidebar { display: flex; flex-direction: column; }
.control-categories { flex: 0 1 auto; overflow: auto; }
.control-chat { height: 100%; min-height: 0; }
.control-composer { position: sticky; bottom: 0; background: var(--surface); }
.control-preview { height: 100%; }
.note-actions { align-items: center; flex-wrap: wrap; }
#control-note-state { margin-left: auto; color: var(--ink-3); font-size: .72rem; }
.control-drawer-backdrop { display: none; }
.export-question-item { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--border); }
.export-question-item h3,.export-question-item p { margin: 0; }
.export-question-item p { color: var(--ink-3); font-size: .76rem; }
.selection-item { display: grid; grid-template-columns: 1.5rem 1fr; gap: .5rem; padding: .65rem 0; border-bottom: 1px solid var(--border); }
.selection-item > span { color: var(--vermilion); font: 700 1rem Georgia,serif; }
.selection-item strong,.selection-item small { display: block; }
.selection-item small { color: var(--ink-3); }
.diagnostic-route { grid-template-columns: repeat(2,1fr); }
.score-ledger-panel > summary { min-height: 64px; cursor: pointer; list-style: none; }
.score-ledger-panel > summary::-webkit-details-marker { display: none; }
.score-ledger-panel > summary small::before { content: "＋ "; color: var(--vermilion); }
.score-ledger-panel[open] > summary { padding-bottom: 1rem; border-bottom: 1px solid var(--border); }
.score-ledger-panel[open] > summary small::before { content: "－ "; }

@media (max-width: 767px) {
    .page-heading h1 { max-width: 100%; white-space: normal !important; font-size: clamp(2rem,10vw,3rem) !important; line-height: 1.05; overflow-wrap: anywhere; }
    .dashboard .topbar { gap: .7rem; }
    .dashboard .topbar-quote { max-width: 30ch; }
    .dashboard .panel { padding: 1rem; }
    .dashboard .quiz-opt-btn { min-height: 62px; grid-template-columns: 2.2rem minmax(0,1fr); padding: .75rem; }
    .answer-followup .status-pills { grid-template-columns: repeat(2,1fr); }
    .answer-followup__actions { align-items: stretch; flex-direction: column; }
    .focus-shell--reading { grid-template-columns: 1fr; }
    .reading-task { width: 100%; }
    .practice-context-bar { display: grid; }
    .reading-toolbar { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); }
    .reading-evidence-strip { grid-template-columns: 1fr; gap: .5rem; }
    .reading-task-actions { bottom: calc(64px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); display: grid; grid-template-columns: 1fr 1fr; padding: .7rem; margin-inline: -.7rem; }
    .reading-task-actions .btn:first-child { grid-column: 1/-1; }
    .answer-progress-grid { grid-template-columns: repeat(4,1fr); }
    .writing-workbench { grid-template-columns: 1fr; }
    .writing-textarea { min-height: 48vh; }
    .writing-standard-row { grid-template-columns: 1fr; }
    .writing-ocr__heading { align-items: flex-start; }
    .writing-ocr__heading > span { white-space: normal; text-align: right; font-size: .78rem; }
    .writing-ocr__actions { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); }
    .writing-ocr__actions .btn { min-height: 44px; justify-content: center; }
    .writing-submit-bar { position: sticky; z-index: 20; bottom: calc(64px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); padding: .6rem 0; background: var(--surface); }
    .writing-score-grid { grid-template-columns: repeat(5,minmax(64px,1fr)); overflow-x: auto; }
    .cloze-side #cloze-submit { bottom: calc(64px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
    .study-page .topbar-left { display: none; }
    .study-page .topbar { margin-bottom: .7rem; }
    .study-page .topbar-right { align-items: center; }
    .study-card-phase { display: flex; flex-direction: column; }
    .study-card-phase > .mode-header { order: 1; }
    .study-card-phase > .study-card-word { order: 2; }
    .study-card-primary-actions { position: relative; z-index: 2; order: 3; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); }
    .study-card-primary-actions.has-retry { grid-template-columns: 1fr 1fr; }
    .study-card-primary-actions.has-retry > :first-child { grid-column: 1/-1; }
    .study-card-phase > .answer-followup { order: 4; }
    .study-card-phase > .study-card-example-heading { order: 5; }
    .study-card-phase > .study-card-example { order: 6; }
    .study-card-phase > .study-card-sentences { order: 7; }
    body:has(.control-page) { overflow: hidden; padding-bottom: 0; }
    .site-main:has(.control-page) { min-height: 0; }
    .control-page { width: 100%; height: calc(100dvh - 118px - var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); padding: 0; }
    .control-page .page-heading { display: none; }
    .control-workbench { height: 100%; min-height: 0; }
    .control-chat { height: 100%; }
    .control-chat { border-inline: 0; border-bottom: 0; }
    .control-chat__head { align-items: flex-start; flex-wrap: wrap; }
    .control-chat__head-actions { width: 100%; align-items: stretch; flex-direction: column; }
    .control-chat__context { width: 100%; }
    .control-composer { bottom: 0; padding-bottom: calc(.8rem + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
    .control-drawer-backdrop { position: fixed; z-index: 44; inset: 0; display: block; border: 0; background: rgba(37,40,58,.45); }
    .control-drawer-backdrop[hidden] { display: none; }
    .control-sidebar,.control-preview { padding-bottom: calc(64px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
    .color-dot { width: 44px; height: 44px; }
    .diagnostic-question span { min-height: 52px; }
    #learn-hub .training-directory__grid a.is-recommended { order: -1; }
    #learn-hub .training-recommend-action { display: block; }
}

@media (min-width: 768px) and (max-width: 1199px) {
    .writing-workbench { width: min(100% - 1rem,1120px); grid-template-columns: minmax(380px,.95fr) minmax(0,1.05fr); }
    .writing-workbench .focus-insight { grid-column: 1 / -1; border-top: 1px solid var(--border); border-left: 0; }
}

/* ===== 2026-08-29 · 阅读拖选标注、固定答题卡与紧凑手机首屏 ===== */
.reading-context-bar { align-items: end; }
.reading-evidence-strip { grid-template-columns: minmax(130px,auto) minmax(180px,1fr); }
.reading-evidence-copy { display: grid; grid-template-columns: auto auto; align-items: baseline; gap: .1rem .6rem; }
.reading-evidence-copy span { grid-column: 1; }
.reading-evidence-copy strong { grid-column: 2; grid-row: 1 / span 2; }
.reading-evidence-copy small { grid-column: 1; color: var(--ink-3); font-size: .72rem; }
.reading-mastery-track { height: 10px; overflow: hidden; background: var(--border); }
.reading-mastery-track > span { display: block; height: 100%; background: var(--accent-bg); }
.article-content { user-select: text; -webkit-user-select: text; }
.article-word-ann { cursor: text; }
.reading-after-article { display: grid; gap: .8rem; margin-top: 1rem; padding-top: 1rem; border-top: 2px solid var(--indigo); }
.reading-after-article > p { margin: 0; color: var(--ink-3); }
.reading-after-article > div:not(.answer-panel) { display: flex; flex-wrap: wrap; gap: .6rem; }
.reading-answer-card-fab { position: fixed; right: max(1rem,var(--app-safe-right-inset,env(safe-area-inset-right))); bottom: max(1rem,var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); z-index: 34; min-width: 132px; min-height: 52px; display: flex; align-items: center; justify-content: space-between; gap: .75rem; padding: .7rem .85rem; border: 1px solid var(--indigo); background: var(--action-bg); color: var(--on-action); font: inherit; font-weight: 800; box-shadow: 8px 10px 24px rgba(37,40,58,.2); cursor: pointer; }
.reading-answer-card-fab[hidden] { display: none; }
.reading-answer-card-fab strong { min-width: 2.6rem; padding: .15rem .35rem; background: var(--surface); color: var(--indigo); font-variant-numeric: tabular-nums; }
.answer-card-box { width: min(820px,calc(100vw - 2rem)); max-height: min(86dvh,900px); padding: 0; overflow: hidden; }
.answer-card-box .modal-head { position: sticky; top: 0; z-index: 3; margin: 0; padding: 1rem 1.2rem; background: var(--surface); border-bottom: 2px solid var(--indigo); }
.answer-card-box .modal-head > div { display: grid; gap: .15rem; }
.answer-card-box .modal-head small { color: var(--ink-3); font-variant-numeric: tabular-nums; }
#answer-card-body { max-height: calc(86dvh - 76px); overflow-y: auto; padding: 0 1.2rem 1.2rem; }
.answer-card-question-list { display: grid; }
.answer-card-question { scroll-margin-top: 5rem; }
.answer-card-actions { position: sticky; bottom: 0; z-index: 2; padding: .8rem 0; background: var(--surface); border-top: 1px solid var(--border); }
.answer-card-actions .btn { width: 100%; }
.lookup-result__word { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.modal-head__actions { display: flex; align-items: center; gap: .5rem; }
.pronounce-button { min-width: 64px; min-height: 44px; padding: .45rem .7rem; border: 1px solid var(--indigo); background: transparent; color: var(--indigo); font: inherit; font-weight: 800; cursor: pointer; }
.pronounce-button:hover,.pronounce-button:focus-visible { background: var(--action-bg); color: var(--on-action); }
.word-pronounce-row { display: flex; align-items: center; gap: .7rem; }
.word-pronounce-row--center { justify-content: center; }
.study-card-word > .pronounce-button { margin: .55rem auto 0; }
.wb-pronounce { min-width: 58px; min-height: 38px; margin-top: .35rem; font-size: .75rem; }

/* 四六级选词填空：空位不再展示原词或逐空提示。 */
.cloze-gap { min-width: 9ch; padding: .1rem .2rem; background: transparent; border-bottom: 2px solid var(--indigo); }
.cloze-input { width: 10ch; border: 0; background: transparent; font-weight: 800; }
.cloze-input::placeholder { color: var(--ink-3); font-weight: 500; }

@media (max-width: 767px) {
    .focus-shell--reading .focus-stage { padding: .65rem .75rem 6rem; }
    .reading-task { max-width: none; }
    .reading-context-bar { gap: .55rem; padding-bottom: .65rem; }
    .reading-context-bar .task-kicker { margin-bottom: .2rem; font-size: .65rem; }
    .reading-context-bar h2 { margin: 0; font-size: clamp(1.45rem,7vw,2rem); line-height: 1.08; }
    .reading-context-bar p:last-child { margin: .35rem 0 0; font-size: .78rem; line-height: 1.45; }
    .reading-toolbar { display: grid; grid-template-columns: 44px minmax(48px,auto) 44px; justify-content: start; gap: .35rem; }
    .reading-toolbar .btn { min-height: 44px; padding: .4rem; }
    .reading-evidence-strip { grid-template-columns: auto minmax(0,1fr); gap: .7rem; margin: .55rem 0; padding: .65rem .7rem; }
    .reading-evidence-copy { min-width: 96px; }
    .reading-evidence-copy strong { font-size: 1.35rem; }
    .reading-evidence-copy span,.reading-evidence-copy small { font-size: .65rem; }
    .mark-toolbar { gap: .35rem; margin-bottom: .45rem; padding: .5rem; }
    .mark-toolbar__label { width: 100%; }
    .mark-btn { flex: 1; min-height: 44px; padding-inline: .35rem; }
    .focus-shell--reading .article-content { padding-top: .8rem; }
    .reading-answer-card-fab { right: .75rem; bottom: calc(72px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); min-width: 120px; min-height: 48px; }
    .answer-card-box { width: calc(100vw - 1rem); max-height: calc(100dvh - 82px - var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
    #answer-card-body { max-height: calc(100dvh - 154px - var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); padding-inline: .8rem; }
    .answer-card-question { padding-block: 1rem; }
    .answer-card-question .choice-button { min-height: 52px; }
}

/* 2026-08-29：段位长卷、Skill 管理与 AI 成果账单。 */
.rank-archive .rank-ladder { display: grid; grid-template-columns: 1fr; gap: .7rem; padding: .8rem 0; }
.rank-ladder__volume { min-width: 0; }
.rank-ladder__volume > header { display: flex; align-items: baseline; gap: .55rem; margin-bottom: .35rem; padding: 0 .25rem; }
.rank-ladder__volume > header span { color: var(--vermilion); font-size: .68rem; font-weight: 800; letter-spacing: .12em; }
.rank-ladder__volume > header strong { color: var(--ink-2); font-size: .75rem; }
.rank-archive .rank-ladder__volume .rank-ladder__track { grid-template-columns: repeat(5,minmax(54px,1fr)); gap: .35rem; }
.rank-archive .rank-ladder__volume .rank-ladder__track::before { left: 7%; right: 7%; top: 25px; }
.rank-archive .rank-ladder__volume .rank-ladder__step { min-height: 78px; padding: .3rem .15rem; }
.rank-archive .rank-ladder__volume .rank-ladder__node { width: 34px; height: 34px; }
.rank-archive .rank-ladder__volume .rank-ladder__step strong { font-size: .76rem; }
.rank-archive .rank-ladder__volume .rank-ladder__step small { font-size: .65rem; }

.settings-section--skills { align-items: start; }
.skill-settings-panel { display: grid; gap: 1rem; }
.skill-list { border-top: 2px solid var(--indigo); }
.skill-item { display: grid; grid-template-columns: minmax(120px,.45fr) minmax(220px,1fr) auto; gap: 1rem; align-items: center; min-height: 94px; padding: .85rem .25rem; border-bottom: 1px solid var(--border); }
.skill-item.is-enabled { box-shadow: inset 3px 0 0 var(--vermilion); padding-left: .8rem; }
.skill-item__index { display: grid; gap: .3rem; }
.skill-item__index span { color: var(--vermilion); font-size: .67rem; font-weight: 800; letter-spacing: .1em; }
.skill-item__index strong { color: var(--indigo); font-size: 1rem; }
.skill-item__copy p { margin: 0; color: var(--ink-2); line-height: 1.55; }
.skill-item__copy .skill-item__rules { margin-top: .35rem; color: var(--ink-3); font-size: .74rem; }
.skill-item__actions { display: grid; justify-items: end; gap: .35rem; min-width: 112px; }
.skill-switch { position: relative; min-width: 84px; min-height: 38px; padding: .45rem .75rem .45rem 2rem; border: 1px solid var(--border-strong); background: var(--paper); color: var(--ink-2); font: inherit; font-size: .75rem; cursor: pointer; }
.skill-switch::before { content: ""; position: absolute; left: .55rem; top: 50%; width: .8rem; height: .8rem; transform: translateY(-50%); border: 2px solid var(--border-strong); border-radius: 50%; background: var(--surface); }
.skill-switch[aria-checked="true"] { border-color: var(--indigo); color: var(--indigo); font-weight: 800; }
.skill-switch[aria-checked="true"]::before { border-color: var(--vermilion); background: var(--accent-bg); }
.skill-create { border-top: 1px solid var(--border-strong); }
.skill-create > summary { min-height: 44px; display: flex; align-items: center; color: var(--indigo); font-weight: 800; cursor: pointer; }
.skill-create form { display: grid; gap: .55rem; padding: .75rem 0 0; }
.skill-create input,.skill-create textarea,.skill-workbench textarea { width: 100%; padding: .7rem; border: 1px solid var(--border-strong); background: var(--surface-strong); color: var(--ink); font: inherit; }
.skill-create textarea,.skill-workbench textarea { resize: vertical; line-height: 1.6; }
.skill-create label,.skill-workbench label { color: var(--ink-2); font-size: .78rem; font-weight: 800; }
.settings-disclosure { display: block; padding: 0; }
.settings-disclosure > summary { min-height: 94px; display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.25rem 1rem; cursor: pointer; list-style: none; }
.settings-disclosure > summary::-webkit-details-marker { display: none; }
.settings-disclosure > summary > span:first-child { display: grid; gap: .25rem; }
.settings-disclosure > summary strong { color: var(--ink); font-size: 1.25rem; }
.settings-disclosure > summary small { color: var(--ink-3); }
.settings-disclosure__action { color: var(--indigo); font-weight: 800; }
.settings-disclosure[open] .settings-disclosure__action { color: var(--vermilion); }
.settings-disclosure__action span:last-child { display: none; }
.settings-disclosure[open] .settings-disclosure__action span:first-child { display: none; }
.settings-disclosure[open] .settings-disclosure__action span:last-child { display: inline; }
.settings-disclosure > .wordbook-list { padding: 0 1rem 1.25rem; }

.skill-workbench { display: grid; grid-template-columns: minmax(240px,.7fr) minmax(360px,1.3fr); gap: 1.25rem; margin-bottom: 1rem; padding: 1rem 1.15rem; border-block: 2px solid var(--indigo); background: var(--surface); }
.skill-workbench__heading { display: flex; justify-content: space-between; gap: 1rem; align-items: start; }
.skill-workbench__heading h2 { margin: .2rem 0; }
.skill-workbench__heading p:last-child { margin: 0; color: var(--ink-2); line-height: 1.6; }
.skill-workbench__editor { display: grid; gap: .45rem; }
.skill-workbench__editor > div { display: flex; align-items: center; gap: .75rem; }
.skill-workbench__editor span { color: var(--ink-3); font-size: .75rem; }

.ai-outcome-ledger { display: grid; grid-template-columns: minmax(260px,.55fr) minmax(520px,1.45fr); gap: 1.5rem; margin-bottom: 1.35rem; padding: 1rem 0 1.2rem; border-bottom: 1px solid var(--border-strong); }
.ai-outcome-ledger h3 { margin: .25rem 0; font: 700 clamp(1.15rem,1.8vw,1.55rem)/1.3 Georgia,"Microsoft YaHei UI",serif; }
.ai-outcome-ledger > div:first-child > p:last-child { color: var(--ink-2); line-height: 1.65; }
.ai-outcome-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; margin: 0; }
.ai-outcome-list article { display: grid; grid-template-columns: 1fr auto; gap: .25rem .75rem; padding: .65rem 0; border-bottom: 1px solid var(--border); }
.ai-outcome-list article > div { min-width: 0; }
.ai-outcome-list strong,.ai-outcome-list small { display: block; }
.ai-outcome-list strong { color: var(--ink); }
.ai-outcome-list small { margin-top: .15rem; color: var(--ink-3); font-size: .69rem; line-height: 1.45; }
.ai-outcome-list article > span { align-self: start; color: var(--vermilion); white-space: nowrap; }
.ai-outcome-list article > span b { margin-right: .18rem; font: 700 1.35rem Georgia,serif; }
.ai-outcome-list i { grid-column: 1/-1; height: 3px; background: var(--paper-deep); overflow: hidden; }
.ai-outcome-list i em { display: block; height: 100%; background: var(--action-bg); }

@media (max-width: 1199px) {
    .ai-outcome-ledger { grid-template-columns: 1fr; }
    .skill-item { grid-template-columns: minmax(110px,.4fr) 1fr; }
    .skill-item__actions { grid-column: 1/-1; display: flex; justify-content: flex-end; align-items: center; }
}

@media (min-width: 768px) and (max-width: 1199px) {
    .skill-item > summary { grid-template-columns: minmax(0,1fr) auto 18px; }
    .skill-item__purpose { grid-column: 1/-1; }
}

@media (max-width: 767px) {
    .skill-item { grid-template-columns: 1fr; gap: .5rem; padding: .85rem .25rem; }
    .skill-item.is-enabled { padding-left: .75rem; }
    .skill-item__actions { grid-column: auto; justify-content: flex-start; flex-wrap: wrap; }
    .skill-switch { min-height: 44px; }
    .settings-disclosure > summary { min-height: 82px; padding: 1rem .75rem; }
    .settings-disclosure > .wordbook-list { padding-inline: .75rem; }
    .skill-workbench { grid-template-columns: 1fr; padding: .9rem; }
    .skill-workbench__heading { display: grid; }
    .skill-workbench__editor > div { align-items: stretch; flex-direction: column; }
    .ai-outcome-list { grid-template-columns: 1fr; }
    .rank-archive .rank-ladder { display: flex; gap: .75rem; overflow-x: auto; scroll-snap-type: x mandatory; }
    .rank-archive .rank-ladder__volume { flex: 0 0 calc(100vw - 2.25rem); width: calc(100vw - 2.25rem); margin-bottom: 0; scroll-snap-align: start; }
    .rank-archive .rank-ladder__volume .rank-ladder__track { width: 100%; }
}

/* Generic modal rules are declared earlier in the file; keep these product-specific surfaces authoritative. */
.modal-overlay.onboarding-overlay { z-index: calc(var(--z-modal) + 2); padding: 24px; }
.modal-overlay.support-modal { z-index: calc(var(--z-toast) + 1); }
.modal-card.support-modal__card { width: min(900px,100%); padding: 0; overflow: hidden auto; }
.modal-header.support-modal__header { align-items: start; padding: 24px 26px 18px; }
.modal-card.support-modal__card .support-modal__done { display: block; min-width: 140px; margin: 14px auto 24px; }

@media (max-width: 767px) {
    .modal-overlay.onboarding-overlay,
    .modal-overlay.support-modal { place-items: end center; padding: 0; }
    .modal-card.support-modal__card { width: 100%; max-height: calc(92dvh - var(--app-safe-top-inset,env(safe-area-inset-top))); padding: 0; border-radius: var(--radius-md) var(--radius-md) 0 0; }
    .modal-header.support-modal__header { padding: 20px 16px 15px; }
}

/* DeepSeek API Key acquisition guide */
.onboarding-api-explainer { display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: center; gap: 20px; margin: 20px 0 4px; padding: 16px 18px; background: var(--paper); box-shadow: inset 0 2px 0 var(--indigo); }
.onboarding-api-explainer strong { display: block; color: var(--indigo); }
.onboarding-api-explainer p { margin: 5px 0 0; color: var(--ink-2); font-size: .82rem; line-height: 1.65; }
.onboarding-api-explainer code { padding: .05rem .28rem; color: var(--indigo); background: var(--indigo-soft); font-family: Consolas,"Courier New",monospace; font-size: .78rem; }
.onboarding-api-explainer .btn { white-space: nowrap; }
.modal-overlay.deepseek-guide-overlay { z-index: calc(var(--z-toast) + 3); padding: 24px; }
.deepseek-guide-dialog { display: grid; grid-template-rows: auto minmax(0,1fr) auto; width: min(1080px,100%); max-height: min(820px,calc(100dvh - 48px)); overflow: hidden; border: 1px solid var(--border-strong); border-radius: var(--radius-md); background: var(--surface); box-shadow: var(--shadow-lift); }
.deepseek-guide-dialog:focus { outline: 3px solid var(--vermilion); outline-offset: 3px; }
.deepseek-guide-header { display: flex; align-items: start; justify-content: space-between; gap: 18px; padding: 20px 24px 17px; border-bottom: 2px solid var(--indigo); }
.deepseek-guide-header span { color: var(--vermilion); font-size: .76rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.deepseek-guide-header h2 { margin: 4px 0 0; font-family: Georgia,"Times New Roman","Microsoft YaHei UI",serif; font-size: clamp(1.6rem,3vw,2.5rem); line-height: 1.08; letter-spacing: -.03em; }
.deepseek-guide-body { display: grid; grid-template-columns: minmax(0,1.55fr) minmax(270px,.65fr); min-height: 0; overflow: hidden; }
.deepseek-guide-visual { display: grid; place-items: center; min-height: 430px; padding: 22px; overflow: hidden; border-right: 1px solid var(--border); background: var(--paper); }
.deepseek-guide-visual img { display: block; width: 100%; height: 100%; max-height: 520px; object-fit: contain; object-position: center; background: var(--surface-strong); border: 1px solid var(--border); }
.deepseek-guide-copy { align-self: center; padding: 28px; }
.deepseek-guide-copy > p:first-child { margin: 0; color: var(--ink); font-size: 1rem; line-height: 1.75; }
.deepseek-guide-warning { margin: 20px 0; padding: 14px 16px; color: var(--ink-2); background: var(--paper); box-shadow: inset 0 2px 0 var(--vermilion); font-size: .82rem; line-height: 1.65; }
.deepseek-guide-copy .text-link { display: inline-flex; align-items: center; min-height: 44px; font-weight: 800; }
.deepseek-guide-actions { display: grid; grid-template-columns: minmax(120px,auto) 1fr minmax(120px,auto); align-items: center; gap: 20px; padding: 14px 24px calc(14px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); border-top: 1px solid var(--border); }
.deepseek-guide-dots { display: flex; justify-content: center; gap: 8px; }
.deepseek-guide-dots > span { display: block; width: 24px; height: 4px; background: var(--paper-deep); }
.deepseek-guide-dots > span.is-current { background: var(--accent-bg); }

@media (max-width: 767px) {
    .onboarding-api-explainer { grid-template-columns: 1fr; gap: 12px; padding: 14px; }
    .onboarding-api-explainer .btn { width: 100%; }
    .modal-overlay.deepseek-guide-overlay { place-items: end center; padding: 0; }
    .deepseek-guide-dialog { width: 100%; max-height: calc(100dvh - var(--app-safe-top-inset,env(safe-area-inset-top))); border-width: 1px 0 0; border-radius: var(--radius-md) var(--radius-md) 0 0; }
    .deepseek-guide-header { padding: 16px; }
    .deepseek-guide-header h2 { font-size: clamp(1.55rem,7vw,2.1rem); }
    .deepseek-guide-body { grid-template-columns: 1fr; overflow-y: auto; }
    .deepseek-guide-visual { min-height: 260px; max-height: 38dvh; padding: 12px; border-right: 0; border-bottom: 1px solid var(--border); }
    .deepseek-guide-visual img { max-height: calc(38dvh - 24px); }
    .deepseek-guide-copy { padding: 18px 16px; }
    .deepseek-guide-warning { margin: 14px 0; }
    .deepseek-guide-actions { grid-template-columns: 1fr 1fr; gap: 10px; padding: 12px 16px calc(12px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
    .deepseek-guide-actions .btn { min-height: 48px; }
    .deepseek-guide-dots { grid-column: 1/-1; grid-row: 1; }
    #deepseek-guide-back { grid-column: 1; }
    #deepseek-guide-next { grid-column: 2; }
}

/* Profile: compact Skill directory and verified update center. */
.settings-section--skills.settings-disclosure { display: block; padding: 0; }
.settings-disclosure__body--skills { display: grid; grid-template-columns: minmax(220px,.8fr) minmax(320px,1.2fr); gap: 2rem; padding: 0 1rem 1.5rem; }
.settings-disclosure__intro h2 { margin: 0 0 .55rem; }
.settings-disclosure__intro p { max-width: 52ch; color: var(--ink-2); line-height: 1.65; }
.skill-list { border-top: 2px solid var(--indigo); }
.skill-item,
.skill-item.is-enabled { display: block; min-height: 0; padding: 0; border-bottom: 1px solid var(--border); box-shadow: none; }
.skill-item > summary { display: grid; grid-template-columns: minmax(120px,.5fr) minmax(220px,1fr) auto 18px; gap: .9rem; align-items: center; min-height: 76px; padding: .75rem .35rem; cursor: pointer; list-style: none; }
.skill-item > summary::-webkit-details-marker { display: none; }
.skill-item > summary:hover { background: var(--paper); }
.skill-item > summary:focus-visible { outline: 3px solid var(--vermilion); outline-offset: 2px; }
.skill-item__purpose { color: var(--ink-2); font-size: .78rem; line-height: 1.5; }
.skill-item__state { min-width: 64px; color: var(--ink-3); font-size: .72rem; font-weight: 800; text-align: right; }
.skill-item__state.is-on { color: var(--vermilion); }
.skill-item__chevron { width: 10px; height: 10px; border-right: 2px solid var(--indigo); border-bottom: 2px solid var(--indigo); transform: rotate(45deg); transition: transform var(--speed-fast) var(--ease-out); }
.skill-item[open] .skill-item__chevron { transform: rotate(225deg); }
.skill-item__panel { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 1rem; align-items: start; padding: .2rem .35rem 1rem; }
.skill-item__actions { display: flex; flex-wrap: wrap; justify-content: flex-end; align-items: center; gap: .55rem; min-width: 0; }
.skill-create > summary { min-height: 48px; }

.settings-section--updates { align-items: start; }
.update-center { display: grid; gap: 1rem; }
.update-version-line { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); border-block: 2px solid var(--indigo); }
.update-version-line > div { min-height: 82px; padding: .85rem 1rem; }
.update-version-line > div + div { border-left: 1px solid var(--border); }
.update-version-line span,.update-version-line strong { display: block; }
.update-version-line span { color: var(--ink-3); font-size: .75rem; }
.update-version-line strong { margin-top: .25rem; color: var(--indigo); font: 700 1.15rem/1.3 Georgia,"Microsoft YaHei UI",serif; font-variant-numeric: tabular-nums; }
.update-state { display: grid; grid-template-columns: 14px 1fr; gap: .8rem; align-items: start; padding: .85rem 0; }
.update-state__mark { width: 12px; height: 12px; margin-top: .3rem; border: 2px solid var(--indigo); border-radius: 50%; background: var(--paper); }
.update-state[data-state="current"] .update-state__mark,.update-state[data-state="ready_for_native"] .update-state__mark { background: var(--action-bg); }
.update-state[data-state="available"] .update-state__mark { border-color: var(--vermilion); background: var(--accent-bg); }
.update-state[data-state="error"] .update-state__mark { border-color: var(--danger); background: var(--danger); }
.update-state strong { color: var(--ink); }
.update-state p { margin: .25rem 0 0; color: var(--ink-2); line-height: 1.55; }
.update-progress { height: 8px; overflow: hidden; background: var(--paper-deep); }
.update-progress span { display: block; width: 100%; height: 100%; background: var(--accent-bg); transform: scaleX(var(--update-progress-scale,0)); transform-origin: left center; transition: transform .28s var(--ease-out); }
.update-actions { display: flex; flex-wrap: wrap; gap: .65rem; }
.update-modal { z-index: calc(var(--z-modal) + 3); }
.modal-card.update-modal__card { width: min(760px,100%); padding: 0; overflow: hidden auto; }
.update-modal__header { align-items: start; padding: 24px 26px 18px; border-bottom: 2px solid var(--indigo); }
.update-modal__header h2 { margin: 0; font: 700 clamp(1.55rem,3vw,2.25rem)/1.15 Georgia,"Microsoft YaHei UI",serif; }
.update-modal__header p { margin: .45rem 0 0; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.update-modal__body { display: grid; gap: 1.35rem; padding: 1.3rem 1.6rem; }
.update-modal__body h3 { margin: 0 0 .55rem; }
.update-data-promise { padding: 1rem; border-block: 1px solid var(--border-strong); background: var(--paper); }
.update-data-promise p,.update-release-notes { margin: .45rem 0 0; color: var(--ink-2); line-height: 1.7; white-space: pre-wrap; }
.update-release-notes { max-height: 30dvh; overflow-y: auto; }
.update-modal__actions { display: flex; justify-content: flex-end; gap: .7rem; padding: 1rem 1.6rem 1.4rem; border-top: 1px solid var(--border); }

@media (max-width: 767px) {
    .settings-disclosure__body--skills { grid-template-columns: 1fr; gap: .9rem; padding: 0 .75rem 1rem; }
    .skill-item > summary { grid-template-columns: minmax(0,1fr) auto 18px; min-height: 64px; padding: .6rem .2rem; }
    .skill-item__purpose { grid-column: 1/-1; }
    .skill-item__state { min-height: 24px; display: flex; align-items: center; }
    .skill-item__panel { grid-template-columns: 1fr; }
    .skill-item__actions { justify-content: flex-start; }
    .skill-switch,.skill-item__actions a,.skill-item__actions button,.skill-create > summary { min-height: 48px; }
    .settings-section--updates { gap: 1rem; }
    .update-version-line { grid-template-columns: 1fr; }
    .update-version-line > div { min-height: 68px; }
    .update-version-line > div + div { border-left: 0; border-top: 1px solid var(--border); }
    .update-actions { display: grid; grid-template-columns: 1fr; }
    .update-actions .btn { min-height: 48px; width: 100%; }
    .update-modal__header { padding: 20px 18px 14px; }
    .update-modal__body { padding: 1rem 1.1rem; }
    .update-modal__actions { display: grid; grid-template-columns: 1fr; padding: .9rem 1.1rem max(1rem,var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
    .update-modal__actions .btn { width: 100%; min-height: 48px; }
    .support-author-panel .btn { min-height: 48px; }
}

/* ===== 2026-09-01 · 阅读词汇状态、AI 补充与手机任务栏 ===== */
.reading-context-main { min-width: 0; }
.reading-source-actions { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; margin-top: .55rem; }
.reading-source-actions .reading-source-link,
.reading-source-toggle { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; margin: 0; padding: .45rem .7rem; border: 1px solid var(--border-strong); background: transparent; color: var(--indigo); font: inherit; font-size: .76rem; font-weight: 800; text-decoration: none; cursor: pointer; }
.reading-source-actions .reading-source-link:hover,
.reading-source-toggle:hover,
.reading-source-actions .reading-source-link:focus-visible,
.reading-source-toggle:focus-visible { border-color: var(--indigo); background: var(--indigo-soft); }
.reading-source-panel { margin-top: .65rem; padding: .7rem .8rem; border-block: 1px solid var(--border); background: var(--paper); }
.reading-source-panel dl { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: .45rem 1rem; margin: 0; }
.reading-source-panel dl > div:last-child { grid-column: 1/-1; }
.reading-source-panel dt { color: var(--ink-3); font-size: .68rem; font-weight: 800; }
.reading-source-panel dd { margin: .12rem 0 0; color: var(--ink-2); font-size: .76rem; line-height: 1.55; }

.reading-vocabulary-tools { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: .7rem; align-items: stretch; margin: 1rem 0 .65rem; }
.reading-evidence-toggle { display: grid; grid-template-columns: minmax(145px,auto) minmax(120px,1fr) auto; align-items: center; gap: 1rem; min-height: 70px; padding: .75rem .9rem; border: 1px solid var(--border); background: var(--paper); color: var(--ink); text-align: left; cursor: pointer; }
.reading-evidence-toggle:hover,.reading-evidence-toggle:focus-visible,.reading-evidence-toggle[aria-pressed="true"] { border-color: var(--indigo); }
.reading-evidence-toggle > b { color: var(--indigo); font-size: .75rem; white-space: nowrap; }
.reading-vocabulary-list-button { min-width: 150px; padding: .65rem 1rem; border: 1px solid var(--indigo); background: var(--surface); color: var(--indigo); font: inherit; font-weight: 800; cursor: pointer; }
.reading-vocabulary-list-button:hover,.reading-vocabulary-list-button:focus-visible { background: var(--action-bg); color: var(--on-action); }
.reading-mastery-legend { display: flex; flex-wrap: wrap; gap: .45rem 1rem; margin: 0 0 .7rem; padding: .55rem .7rem; border-block: 1px solid var(--border); color: var(--ink-2); font-size: .7rem; }
.reading-mastery-legend span { display: inline-flex; align-items: center; gap: .35rem; }
.reading-mastery-legend span::before { content: ""; width: 1.6rem; height: 4px; background: var(--mastery-color,var(--border-strong)); }
.reading-mastery-legend [data-status="unlisted"] { --mastery-color: #8a8790; }
.reading-mastery-legend [data-status="stranger"] { --mastery-color: #bd4b3c; }
.reading-mastery-legend [data-status="vague"] { --mastery-color: #b47a32; }
.reading-mastery-legend [data-status="consolidating"] { --mastery-color: #76688f; }
.reading-mastery-legend [data-status="mastered"] { --mastery-color: #4c5c8a; }
.reading-mastery-legend [data-status="familiar"] { --mastery-color: #2e665f; }
.article-word-ann[class*="mastery-"] { text-decoration-line: underline; text-decoration-thickness: 3px; text-underline-offset: .22em; }
.article-word-ann.mastery-unlisted { text-decoration-style: dotted; text-decoration-color: #8a8790; }
.article-word-ann.mastery-stranger { text-decoration-color: #bd4b3c; }
.article-word-ann.mastery-vague { text-decoration-color: #b47a32; }
.article-word-ann.mastery-consolidating { text-decoration-color: #76688f; }
.article-word-ann.mastery-mastered { text-decoration-color: #4c5c8a; }
.article-word-ann.mastery-familiar { text-decoration-color: #2e665f; }

.mark-toolbar.is-engaged { border-color: var(--indigo); box-shadow: inset 3px 0 0 var(--vermilion); }
.article-content.is-marking { user-select: none; -webkit-user-select: none; touch-action: none; cursor: crosshair; }
.article-content.is-marking .article-word-ann { cursor: crosshair; }
.study-card-phase { scroll-margin-top: calc(76px + var(--safe-top)); }

.vocabulary-modal-box { width: min(760px,calc(100vw - 2rem)); max-height: min(86dvh,820px); padding: 0; overflow: hidden; }
.vocabulary-modal-box .modal-head { margin: 0; padding: 1rem 1.15rem; border-bottom: 2px solid var(--indigo); }
.vocabulary-modal-box .modal-head > div { display: grid; gap: .15rem; }
.vocabulary-modal-box .modal-head small { color: var(--ink-3); font-size: .72rem; }
.vocabulary-tabs { display: grid; grid-template-columns: repeat(2,1fr); padding: .7rem 1.15rem 0; }
.vocabulary-tabs button { min-height: 48px; border: 1px solid var(--border-strong); background: var(--surface); color: var(--ink-2); font: inherit; font-weight: 800; cursor: pointer; }
.vocabulary-tabs button + button { border-left: 0; }
.vocabulary-tabs button.is-active { border-color: var(--indigo); background: var(--action-bg); color: var(--on-action); }
.vocabulary-word-list { max-height: calc(86dvh - 150px); overflow-y: auto; padding: .65rem 1.15rem 1.15rem; }
.vocabulary-word-row { display: grid; grid-template-columns: minmax(0,1fr) 92px; gap: .55rem; min-height: 64px; padding: .55rem 0; border-bottom: 1px solid var(--border); }
.vocabulary-word-open { display: flex; align-items: center; justify-content: space-between; gap: .7rem; min-width: 0; padding: .45rem .55rem; border: 0; background: transparent; color: var(--ink); text-align: left; cursor: pointer; }
.vocabulary-word-open > span { min-width: 0; }
.vocabulary-word-open strong,.vocabulary-word-open small { display: block; }
.vocabulary-word-open strong { overflow: hidden; color: var(--indigo); font-family: Georgia,"Times New Roman",serif; font-size: 1.05rem; text-overflow: ellipsis; }
.vocabulary-word-open small { margin-top: .12rem; color: var(--ink-3); font-size: .68rem; }
.vocabulary-word-open > b { flex: 0 0 auto; color: var(--ink-2); font-size: .7rem; }
.vocabulary-favorite,.vocabulary-enrich { min-height: 48px; align-self: center; border: 1px solid var(--border-strong); background: var(--surface); color: var(--indigo); font: inherit; font-size: .72rem; font-weight: 800; cursor: pointer; }
.vocabulary-favorite.is-active { border-color: var(--vermilion); color: var(--vermilion); }

.lookup-result { display: grid; gap: .8rem; }
.lookup-result__facts { display: grid; gap: .35rem; padding-bottom: .75rem; border-bottom: 1px solid var(--border); }
.lookup-result__facts p,.lookup-result__facts strong,.lookup-result__facts small { margin: 0; }
.lookup-result__facts p,.lookup-result__facts small { color: var(--ink-3); }
.lookup-match-note,.lookup-ai-offer,.lookup-ai-detail { margin: 0; padding: .8rem .9rem; background: var(--paper); color: var(--ink-2); line-height: 1.6; }
.lookup-match-note b { color: var(--indigo); }
.lookup-favorite { min-height: 46px; border: 1px solid var(--border-strong); background: var(--surface); color: var(--indigo); font: inherit; font-weight: 800; cursor: pointer; }
.lookup-favorite.is-active { border-color: var(--vermilion); color: var(--vermilion); }
.lookup-ai-offer { display: grid; gap: .5rem; border-top: 2px solid var(--indigo); }
.lookup-ai-offer p { margin: 0; }
.lookup-ai-offer .btn { justify-self: start; }
.lookup-ai-detail { border-top: 2px solid var(--vermilion); }
.lookup-ai-heading { display: flex; align-items: start; justify-content: space-between; gap: 1rem; }
.lookup-ai-heading > div { display: grid; gap: .25rem; }
.lookup-ai-heading span { color: var(--vermilion); font-size: .68rem; font-weight: 800; }
.lookup-ai-heading strong { color: var(--ink); }
.lookup-ai-heading .text-button { min-height: 44px; border: 0; background: transparent; color: var(--indigo); font: inherit; font-size: .72rem; font-weight: 800; cursor: pointer; }
.lookup-ai-detail > p { margin: .7rem 0; }
.lookup-ai-detail dl { display: grid; gap: .65rem; margin: 0; }
.lookup-ai-detail dl > div { padding-top: .55rem; border-top: 1px solid var(--border); }
.lookup-ai-detail dt { color: var(--indigo); font-size: .72rem; font-weight: 800; }
.lookup-ai-detail dd { display: grid; gap: .22rem; margin: .25rem 0 0; }
.lookup-ai-detail dd span { display: block; }
.lookup-empty { display: grid; gap: .7rem; padding: .4rem 0; }
.lookup-empty p { margin: 0; color: var(--ink-2); line-height: 1.65; }
.lookup-empty .btn { justify-self: start; }

@media (max-width: 767px) {
    /* These rules stay last so later desktop declarations cannot squeeze the phone charts. */
    .achievements-ledger { grid-template-columns: minmax(0,1fr); gap: .9rem; }
    .achievements-ledger > * { grid-column: 1; min-width: 0; }
    .achievement-rhythm { grid-template-columns: minmax(0,1fr); gap: .8rem; }
    .achievement-rhythm > p { align-self: auto; }
    .achievement-rhythm__grid { grid-column: 1; grid-template-columns: minmax(0,1fr); gap: .8rem; }
    .achievement-rhythm figure { width: 100%; padding: .75rem; }
    .chart--achievements { width: 100%; height: 280px; }
    .chart--rhythm { width: 100%; height: 150px; }

    .reading-context-bar { display: grid; grid-template-columns: minmax(0,1fr); align-items: start; }
    .reading-source-actions { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: .45rem; }
    .reading-source-actions .reading-source-link,.reading-source-toggle { width: 100%; min-height: 48px; padding-inline: .35rem; font-size: .7rem; text-align: center; }
    .reading-source-panel dl { grid-template-columns: 1fr; }
    .reading-source-panel dl > div:last-child { grid-column: auto; }
    .reading-toolbar { grid-template-columns: 76px minmax(66px,auto) 76px; justify-content: center; width: 100%; margin-top: .15rem; }
    .reading-toolbar .btn { min-height: 48px; padding: .25rem .6rem; }
    .reading-toolbar output { align-self: center; }
    .reading-vocabulary-tools { grid-template-columns: minmax(0,1fr) 112px; gap: .45rem; margin-top: .7rem; }
    .reading-evidence-toggle { grid-template-columns: 1fr; gap: .45rem; min-height: 96px; padding: .65rem .7rem; }
    .reading-evidence-toggle > b { justify-self: start; }
    .reading-vocabulary-list-button { min-width: 0; min-height: 48px; padding: .45rem; }
    .reading-mastery-legend { gap: .45rem .7rem; }
    .mark-toolbar { position: sticky; top: calc(58px + var(--safe-top)); z-index: 36; display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); margin-inline: -.25rem; padding: .5rem; background: var(--surface); box-shadow: 0 8px 18px rgba(48,59,103,.12); }
    .mark-toolbar__label { grid-column: 1/-1; }
    .mark-btn { width: 100%; min-height: 48px; }
    .study-card-phase { scroll-margin-top: calc(62px + var(--safe-top)); }
    .vocabulary-modal-box { width: 100%; max-height: calc(92dvh - var(--safe-top)); border-radius: var(--radius-md) var(--radius-md) 0 0; }
    .vocabulary-word-list { max-height: calc(92dvh - 156px - var(--safe-top)); padding-inline: .8rem; }
    .vocabulary-word-row { grid-template-columns: minmax(0,1fr) 84px; }
    .vocabulary-word-open { min-height: 48px; }
    .lookup-ai-heading { display: grid; }
    .lookup-ai-heading .text-button { justify-self: start; }
}

/* 2026-09-05 · compact mobile workbench and verified device-sync result */
.device-sync-result-modal__card { width: min(720px,100%); padding: 0; overflow: hidden; }
.device-sync-result-modal__header { padding: 1.15rem 1.25rem 1rem; border-bottom: 2px solid var(--indigo); }
.device-sync-result-modal__header > p:first-child { margin: 0 0 .35rem; color: var(--vermilion); font-size: .68rem; font-weight: 800; letter-spacing: .13em; }
.device-sync-result-modal__header h2 { margin: 0; color: var(--ink); font: 700 clamp(1.5rem,4vw,2.2rem)/1.12 Georgia,"Microsoft YaHei UI",serif; }
.device-sync-result-modal__header > p:last-child { margin: .45rem 0 0; color: var(--ink-2); }
.device-sync-result-hero { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); background: var(--paper); border-bottom: 1px solid var(--border); }
.device-sync-result-hero > div { min-width: 0; padding: 1rem 1.25rem; }
.device-sync-result-hero > div + div { border-left: 1px solid var(--border); }
.device-sync-result-hero span,.device-sync-result-hero strong { display: block; }
.device-sync-result-hero span { color: var(--ink-3); font-size: .72rem; }
.device-sync-result-hero strong { margin-top: .3rem; color: var(--indigo); font-size: 1.05rem; font-variant-numeric: tabular-nums; word-break: keep-all; }
.device-sync-result-list { max-height: 42dvh; overflow-y: auto; padding: .45rem 1.25rem; }
.device-sync-result-list > div { display: grid; grid-template-columns: minmax(96px,.7fr) minmax(0,1.3fr) auto; gap: .75rem; align-items: center; min-height: 54px; border-bottom: 1px solid var(--border); }
.device-sync-result-list span { color: var(--ink-2); font-size: .78rem; }
.device-sync-result-list b { color: var(--indigo); font-size: .74rem; white-space: nowrap; }
.device-sync-result-empty { grid-template-columns: 1fr !important; gap: .25rem !important; padding: 1rem 0; }
.device-sync-result-meta { margin: 0; padding: .8rem 1.25rem; color: var(--ink-3); font-size: .72rem; border-top: 1px solid var(--border); }
.device-sync-result-actions { display: flex; justify-content: flex-end; gap: .65rem; padding: 1rem 1.25rem; border-top: 2px solid var(--indigo); }
.device-sync-result-actions .btn { min-height: 48px; }

/* 拼写正确详情：滚动正文与常驻操作分层，窄屏也不遮挡下一步。 */
.spelling-detail-modal { z-index: calc(var(--z-toast) + 1); }
.spelling-detail-modal__card { display: grid; grid-template-rows: minmax(0,1fr) auto; width: min(680px,100%); max-height: min(780px,calc(100dvh - 36px)); overflow: hidden; background: var(--surface); border: 1px solid var(--border-strong); border-radius: var(--radius-md); box-shadow: var(--shadow-lift); }
.spelling-detail-modal__card:focus { outline: 3px solid var(--vermilion); outline-offset: 3px; }
.spelling-detail-modal__body { min-height: 0; overflow-y: auto; overscroll-behavior: contain; padding: 1.4rem 1.5rem; }
.spelling-detail-modal__header { display: flex; align-items: start; justify-content: space-between; gap: 1rem; padding-bottom: 1rem; border-bottom: 2px solid var(--indigo); }
.spelling-detail-modal__header .eyebrow { margin: 0 0 .25rem; }
.spelling-detail-modal__header h2 { margin: 0; color: var(--indigo); font: 800 clamp(2.3rem,7vw,4.5rem)/1 Georgia,"Times New Roman",serif; overflow-wrap: anywhere; }
.spelling-detail-modal__phonetic { margin: .35rem 0 0; color: var(--ink-3); font-size: 1rem; }
.spelling-detail-modal__quick-actions { display: flex; align-items: center; flex-wrap: wrap; gap: .6rem; margin: 1rem 0; }
.spelling-detail-modal__quick-actions .btn-act { min-height: 48px; }
.spelling-detail-modal__quick-actions .status-pill { display: inline-flex; align-items: center; min-height: 38px; margin-left: auto; }
.spelling-detail-modal__meaning { padding: 1rem; background: var(--paper); border-inline-start: 4px solid var(--vermilion); }
.spelling-detail-modal__meaning strong { color: var(--vermilion); }
.spelling-detail-modal__meaning p { margin: .35rem 0 0; color: var(--ink); font-size: 1rem; line-height: 1.75; }
.spelling-detail-modal__examples { margin-top: 1.2rem; }
.spelling-detail-modal__examples h3 { margin: 0 0 .5rem; color: var(--indigo); font-size: .9rem; }
.spelling-detail-modal__examples .sentence-block { margin-bottom: .65rem; }
.spelling-detail-modal__examples p { margin-block: .2rem; }
.spelling-detail-modal__footer { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: .75rem; padding: 1rem 1.5rem max(1rem,var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); border-top: 1px solid var(--border); background: var(--surface); box-shadow: 0 -8px 20px rgba(37,40,58,.06); }
.spelling-detail-modal__footer .btn-act { min-height: 52px; justify-content: center; }

@media (max-width: 767px) {
    .page-heading h1 { overflow-wrap: normal !important; word-break: keep-all; text-wrap: balance; }
    h1,h2,h3 { text-wrap: balance; }
    .btn,button,[role="button"],dt,dd { text-wrap: balance; }

    .control-chat__head { flex-wrap: nowrap; align-items: center; min-height: 60px; padding: .4rem .5rem; }
    .control-chat__head > .section-heading,.control-chat__context { display: none; }
    .control-chat__head-actions { display: flex; flex-direction: row; align-items: stretch; width: 100%; gap: .45rem; }
    .control-mobile-actions { order: 1; display: grid; grid-template-columns: minmax(72px,.82fr) minmax(104px,1.18fr); flex: 1 1 auto; gap: .4rem; min-width: 0; }
    .control-mobile-actions .btn { min-width: 0; min-height: 48px; padding: .35rem .55rem; white-space: nowrap; }
    .control-chat__head-actions .assistant-language-switch { order: 2; flex: 0 0 96px; width: 96px; height: 50px; padding: 0; border: 0; box-shadow: inset 0 0 0 1px var(--border-strong); }
    .control-chat__head-actions .assistant-language-switch button { min-width: 0; min-height: 50px; padding: .25rem; font-size: 0; transition: color 160ms ease,background-color 160ms ease,box-shadow 160ms ease,transform 160ms cubic-bezier(.16,1,.3,1); }
    .control-chat__head-actions .assistant-language-switch button::after { font-size: .72rem; }
    .control-chat__head-actions .assistant-language-switch button[data-control-language="zh"]::after { content: "中"; }
    .control-chat__head-actions .assistant-language-switch button[data-control-language="en"]::after { content: "EN"; }
    .control-chat__head-actions .assistant-language-switch button[aria-pressed="true"] { box-shadow: inset 0 -3px 0 rgba(255,255,255,.38); }
    .control-messages { overscroll-behavior: contain; }
    .control-composer { flex: 0 0 auto; }

    .settings-page > .page-heading { display: block; margin: 0 0 .75rem; padding: .5rem 0 .75rem; border-bottom: 0; }
    .settings-page > .page-heading > div { display: none; }
    .settings-page > .page-heading > .btn { width: 100%; min-height: 48px; }

    .vocab-command__facts div { display: grid; grid-template-columns: minmax(0,1fr); gap: .22rem; align-content: start; }
    .vocab-command__facts dt { font-size: .68rem; white-space: nowrap; word-break: keep-all; }
    .vocab-command__facts dd { justify-self: start; white-space: nowrap; word-break: keep-all; }

    .device-sync-result-modal { align-items: end; padding: var(--safe-top) .5rem calc(64px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
    .device-sync-result-modal__card { max-height: calc(92dvh - var(--safe-top)); }
    .device-sync-result-hero > div { padding: .85rem .9rem; }
    .device-sync-result-list { max-height: 38dvh; padding-inline: .9rem; }
    .device-sync-result-list > div { grid-template-columns: 1fr auto; gap: .25rem .7rem; padding: .55rem 0; }
    .device-sync-result-list span { grid-column: 1/-1; grid-row: 2; }
    .device-sync-result-list b { grid-column: 2; grid-row: 1; }
    .device-sync-result-actions { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); padding: .8rem .9rem; }
    .device-sync-result-actions .btn { width: 100%; }
    .modal-overlay.spelling-detail-modal { place-items: end center; padding: max(8px,var(--app-safe-top-inset,env(safe-area-inset-top))) 0 0; }
    .spelling-detail-modal__card { width: 100%; max-height: calc(100dvh - max(8px,var(--app-safe-top-inset,env(safe-area-inset-top)))); border-width: 1px 0 0; border-radius: var(--radius-md) var(--radius-md) 0 0; }
    .spelling-detail-modal__body { padding: 1rem; }
    .spelling-detail-modal__footer { padding: .75rem 1rem max(.75rem,var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
    .spelling-detail-modal__header h2 { font-size: clamp(2rem,10vw,3.2rem); }
    .spelling-detail-modal__quick-actions .status-pill { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
    .control-chat__head-actions .assistant-language-switch button { transition-duration: 0.01ms; transform: none !important; }
}

/* 2026-09-10 · 今日加练、三模式复习与纯净阅读 */
.home-extra-card,.study-completion-card { width: min(560px,100%); padding: clamp(1.25rem,4vw,2rem); border-top: 5px solid var(--vermilion); background: var(--surface); box-shadow: var(--shadow-lift); }
.home-extra-card h2,.study-completion-card h2 { margin: .25rem 0 .65rem; color: var(--indigo); font: 700 clamp(1.55rem,4vw,2.3rem)/1.1 Georgia,"Microsoft YaHei UI",serif; }
.home-extra-card > p:not(.eyebrow),.study-completion-card > p:not(.eyebrow) { color: var(--ink-2); line-height: 1.65; }
.home-extra-options,.study-extra-picker > div { display: grid; grid-template-columns: repeat(4,1fr); gap: .55rem; margin: 1rem 0; }
.home-extra-options button,.study-extra-picker button { min-height: 52px; border: 1px solid var(--indigo); background: var(--surface); color: var(--indigo); font: inherit; font-weight: 800; cursor: pointer; }
.home-extra-options button:hover,.home-extra-options button:focus-visible,.study-extra-picker button:hover,.study-extra-picker button:focus-visible { background: var(--action-bg); color: var(--on-action); }
.home-extra-card > .btn-act,.study-completion-actions .btn-act { min-height: 48px; justify-content: center; }
.study-goal-complete { display: grid; justify-items: start; gap: .7rem; padding: clamp(1.2rem,4vw,2.2rem); border-block: 2px solid var(--indigo); background: var(--paper); }
.study-goal-complete h2,.study-goal-complete p { margin: 0; }
.study-completion-numbers { display: grid; grid-template-columns: repeat(3,1fr); margin: 1.2rem 0; border-block: 1px solid var(--border); }
.study-completion-numbers span { padding: .85rem; color: var(--ink-2); }
.study-completion-numbers span + span { border-left: 1px solid var(--border); }
.study-completion-numbers b { color: var(--vermilion); font-size: 1.2rem; white-space: nowrap; }
.study-completion-actions,.review-complete-actions { display: flex; gap: .65rem; margin-top: 1rem; }
.study-extra-picker { margin-top: 1rem; padding-top: .8rem; border-top: 1px solid var(--border); }
.study-extra-picker > p { margin: 0; color: var(--ink-2); font-weight: 800; }

.review-workspace { width: min(1180px,calc(100% - 2rem)); margin: 0 auto; padding: clamp(1rem,3vw,2.2rem) 0 4rem; }
.review-compact-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.review-total-progress { display: grid; grid-template-columns: auto auto minmax(120px,240px); align-items: center; gap: .6rem; }
.review-total-progress > strong { color: var(--indigo); font: 700 1.5rem Georgia,serif; }
.review-total-progress > span { color: var(--ink-2); font-size: .76rem; }
.review-total-progress__track,.review-current-progress i,.review-queue-word__bars i { display: block; overflow: hidden; height: 6px; background: var(--paper-deep); }
.review-total-progress__track i,.review-current-progress em,.review-queue-word__bars em { display: block; height: 100%; background: var(--action-bg); transition: width .2s ease; }
.review-layout { display: grid; grid-template-columns: minmax(230px,.58fr) minmax(0,1.7fr); border: 1px solid var(--border); background: var(--surface); }
.review-sidebar { min-width: 0; padding: 1rem; border-right: 1px solid var(--border); background: var(--paper); }
.review-tabs--three { display: grid; grid-template-columns: 1fr; gap: 0; border-top: 2px solid var(--indigo); }
.review-tabs--three button { display: grid; gap: .12rem; min-height: 58px; padding: .65rem .75rem; border: 0; border-bottom: 1px solid var(--border); background: transparent; color: var(--ink-2); text-align: left; font: inherit; cursor: pointer; }
.review-tabs--three button span { font-weight: 800; }
.review-tabs--three button small { color: var(--ink-3); }
.review-tabs--three button.active { background: var(--action-bg); color: var(--on-action); }
.review-tabs--three button.active small { color: rgba(255,255,255,.75); }
.review-rules { margin: .75rem 0 1rem; color: var(--ink-2); font-size: .75rem; line-height: 1.6; }
.review-rules summary { min-height: 44px; display: flex; align-items: center; color: var(--indigo); font-weight: 800; cursor: pointer; }
.review-rules p { margin: .25rem 0; }
.review-queue { max-height: 58dvh; overflow-y: auto; scrollbar-width: thin; scrollbar-color: var(--indigo) var(--paper-deep); }
.review-queue-word { width: 100%; min-height: 58px; display: grid; grid-template-columns: minmax(0,1fr) 72px; gap: .65rem; align-items: center; padding: .55rem; border: 0; border-bottom: 1px solid var(--border); background: transparent; color: var(--ink); text-align: left; cursor: pointer; }
.review-queue-word.current { background: var(--indigo-soft); box-shadow: inset 3px 0 var(--vermilion); }
.review-queue-word.core-done { opacity: .68; }
.review-queue-word__label b,.review-queue-word__label small { display: block; }
.review-queue-word__label b { overflow: hidden; color: var(--indigo); font-family: Georgia,serif; text-overflow: ellipsis; }
.review-queue-word__label small { margin-top: .15rem; color: var(--ink-3); font-size: .65rem; }
.review-queue-word__bars { display: grid; gap: 4px; }
.review-queue-word__bars i { height: 4px; }
.review-queue-word__bars i.optional em { background: var(--accent-bg); }
.review-task-card { min-width: 0; padding: clamp(1.1rem,3vw,2rem); }
.review-current-progress { display: grid; grid-template-columns: repeat(3,1fr); margin-bottom: 1.25rem; border-block: 1px solid var(--border); }
.review-current-progress > div { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: .35rem .6rem; padding: .65rem .75rem; }
.review-current-progress > div + div { border-left: 1px solid var(--border); }
.review-current-progress span b,.review-current-progress span small { display: block; }
.review-current-progress span b { font-size: .76rem; }
.review-current-progress span small { color: var(--ink-3); font-size: .62rem; }
.review-current-progress i { grid-column: 1/-1; height: 5px; }
.review-current-progress strong { color: var(--ink-3); font-size: .75rem; }
.review-current-progress .is-active { background: var(--paper); }
.review-current-progress .is-done strong { color: var(--indigo); }
.review-current-progress > div:last-child em { background: var(--accent-bg); }
.review-task-heading { display: flex; align-items: start; justify-content: space-between; gap: 1rem; margin-bottom: 1.1rem; }
.review-task-heading h1 { margin: .2rem 0 0; color: var(--ink); font: 700 clamp(1.45rem,3vw,2.4rem)/1.15 Georgia,"Microsoft YaHei UI",serif; }
.review-mode-panel { max-width: 760px; margin: 0 auto; }
.review-meaning-prompt,.review-listening-lead { margin: 1rem auto; max-width: 48ch; color: var(--ink-2); text-align: center; line-height: 1.65; }
.review-primary-action,.review-next-action { width: 100%; min-height: 52px; justify-content: center; margin-top: .75rem; }
.review-next-action { background: var(--accent-bg); border-color: var(--vermilion); }
.review-listen-button { display: flex; min-width: 180px; min-height: 56px; justify-content: center; margin: 1rem auto; }
.review-listening-answer { margin-top: 1rem; padding: 1rem; border-top: 2px solid var(--indigo); background: var(--paper); }
.review-listening-empty { padding: 2rem 1rem; }
.review-complete-card { align-self: stretch; display: grid; place-content: center; min-height: 430px; }
.review-complete-card h1 { margin: .3rem 0 .7rem; color: var(--indigo); font: 700 clamp(2rem,5vw,3.8rem)/1 Georgia,"Microsoft YaHei UI",serif; }
.review-complete-card > p:last-of-type { color: var(--ink-2); }
.review-empty { width: min(720px,calc(100% - 2rem)); margin: 3rem auto; }

.article-area--loaded { padding: 0; border: 0; text-align: left; }
.article-area--loaded .article-content { text-align: left; }
.reading-article-meta { display: flex; flex-wrap: wrap; gap: .25rem .55rem; align-items: center; }
.reading-difficulty-stars { display: inline-flex; gap: .08rem; color: var(--border-strong); white-space: nowrap; }
.reading-difficulty-stars .is-filled { color: var(--vermilion); }
.reading-mobile-source { display: none; }

@media (max-width: 767px) {
    .home-extra-options,.study-extra-picker > div { grid-template-columns: repeat(2,1fr); }
    .study-completion-card { align-self: end; width: 100%; padding-bottom: max(1rem,var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
    .study-completion-numbers { grid-template-columns: 1fr; }
    .study-completion-numbers span + span { border-left: 0; border-top: 1px solid var(--border); }
    .study-completion-actions { display: grid; grid-template-columns: repeat(2,1fr); }

    .review-workspace { width: 100%; padding: .65rem .75rem 6rem; }
    .review-compact-head { min-height: 52px; margin-bottom: .65rem; }
    .review-total-progress { grid-template-columns: auto auto; gap: .25rem .55rem; }
    .review-total-progress__track { grid-column: 1/-1; min-width: 150px; }
    .review-compact-head > .btn-act { min-height: 48px; }
    .review-layout { display: flex; flex-direction: column; border: 0; background: transparent; }
    .review-sidebar { display: contents; }
    .review-tabs--three { order: 0; grid-template-columns: repeat(3,1fr); position: sticky; top: calc(54px + var(--safe-top)); z-index: 35; border: 1px solid var(--border); background: var(--surface); box-shadow: 0 8px 20px rgba(48,59,103,.1); }
    .review-tabs--three button { min-width: 0; min-height: 58px; padding: .35rem .2rem; border-bottom: 0; text-align: center; }
    .review-tabs--three button + button { border-left: 1px solid var(--border); }
    .review-tabs--three button span { font-size: .75rem; white-space: nowrap; }
    .review-tabs--three button small { font-size: .58rem; }
    .review-rules { order: 2; margin: .45rem 0; }
    .review-queue { order: 3; max-height: 220px; margin-top: .45rem; padding: .65rem; border: 1px solid var(--border); background: var(--paper); }
    .review-task-card { order: 1; margin-top: .65rem; padding: .8rem; border: 1px solid var(--border); background: var(--surface); }
    .review-current-progress { margin-bottom: .8rem; }
    .review-current-progress > div { padding: .45rem .35rem; }
    .review-current-progress span b { font-size: .64rem; white-space: nowrap; }
    .review-current-progress span small { font-size: .55rem; }
    .review-task-heading { align-items: center; margin-bottom: .65rem; }
    .review-task-heading .task-kicker { display: none; }
    .review-task-heading h1 { font-size: 1.2rem; }
    .review-task-heading .btn-fav-toggle { min-height: 48px; }
    .review-mode-panel .quiz-word-big { font-size: clamp(2.35rem,14vw,4.4rem); }
    .review-mode-panel .quiz-sentence { text-align: left; }
    .review-complete-card { min-height: 360px; }
    .review-complete-actions { display: grid; grid-template-columns: 1fr; }

    .reading-source-block--desktop { display: none; }
    .reading-mobile-source { display: block; margin-top: 1.5rem; padding-top: 1rem; border-top: 2px solid var(--indigo); }
    .reading-source-block--mobile { display: block; }
    .reading-article-meta { justify-content: flex-start; text-align: left; }
    .article-area--loaded .reading-task,.article-area--loaded .article-content { text-align: left; }
}

@media (max-width: 900px) and (hover: none) {
    .reading-source-block--desktop { display: none; }
    .reading-mobile-source { display: block; margin-top: 1.5rem; padding-top: 1rem; border-top: 2px solid var(--indigo); }
    .reading-source-block--mobile { display: block; }
    html.reading-immersive,body.reading-immersive { background: var(--surface); }
    body.reading-immersive { padding: 0 !important; overflow-y: auto; }
    body.reading-immersive .site-header,body.reading-immersive .mobile-nav,body.reading-immersive .skip-link,
    body.reading-immersive .reading-settings,body.reading-immersive .reading-context-bar,
    body.reading-immersive .reading-vocabulary-tools,body.reading-immersive .reading-mastery-legend,
    body.reading-immersive .mark-toolbar,body.reading-immersive .reading-mobile-source,
    body.reading-immersive .reading-after-article,body.reading-immersive .reading-answer-card-fab { display: none !important; }
    body.reading-immersive .site-main { min-height: 100dvh; }
    body.reading-immersive .focus-shell--reading { display: block; width: 100%; min-height: 100dvh; border: 0; background: var(--surface); }
    body.reading-immersive .focus-shell--reading .focus-stage { padding: max(1rem,var(--app-safe-top-inset,env(safe-area-inset-top))) clamp(1rem,5vw,2rem) max(1rem,var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); border: 0; }
    body.reading-immersive .article-area--loaded,.reading-immersive .reading-task { border: 0; }
    body.reading-immersive .article-content { max-width: 72ch; margin: 0 auto; padding: 0; line-height: 1.9 !important; }
}

@media (prefers-reduced-motion: reduce) {
    .review-total-progress__track i,.review-current-progress em,.review-queue-word__bars em { transition: none; }
}

/* 2026-09-14 · 手机控制台消息框与纵向段位卷轴。 */
.control-composer__surface { display: flex; flex-direction: column; gap: .6rem; }
.control-assistant-scenes__summary,.rank-ladder__status { display: none; }
.assistant-scene-compact > .control-assistant-scenes__picker { display: block; }
.control-assistant-scenes__picker > div { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: .55rem; }

@media (max-width: 767px) {
    .control-assistant-scenes { padding: .5rem; background: var(--paper); }
    .control-assistant-scenes__picker > div { grid-template-columns: minmax(0,1fr) minmax(104px,auto); }
    .control-assistant-scenes__picker .btn { min-height: 48px; }
    .control-assistant-scenes.is-collapsed { padding: .35rem .5rem; }
    .control-assistant-scenes.is-collapsed .control-assistant-scenes__picker { display: none; }
    .control-assistant-scenes.is-collapsed .control-assistant-scenes__summary {
        width: 100%; min-height: 48px; display: grid; grid-template-columns: auto minmax(0,1fr) auto;
        align-items: center; gap: .55rem; padding: .45rem .7rem; border: 1px solid var(--border-strong);
        background: var(--surface); color: var(--ink-2); text-align: left; font: inherit; cursor: pointer;
    }
    .control-assistant-scenes__summary span { color: var(--vermilion); font-size: .64rem; font-weight: 800; letter-spacing: .08em; }
    .control-assistant-scenes__summary strong { min-width: 0; overflow: hidden; color: var(--indigo); font-size: .76rem; text-overflow: ellipsis; white-space: nowrap; }
    .control-assistant-scenes__summary small { color: var(--ink-3); font-size: .65rem; white-space: nowrap; }

    .control-composer { padding: .5rem; gap: .3rem; border-top: 1px solid var(--border); }
    .control-composer__surface {
        display: grid; grid-template-columns: minmax(0,1fr) auto; gap: .35rem;
        padding: .4rem; overflow: hidden; background: var(--surface-strong); border: 1px solid var(--border-strong);
        border-radius: 18px; box-shadow: 0 8px 22px rgba(48,59,103,.08);
    }
    .control-composer__surface:focus-within { border-color: var(--indigo); box-shadow: 0 0 0 3px var(--indigo-soft); }
    .control-attachments { grid-column: 1/-1; padding: 0 .25rem; }
    .control-composer textarea {
        grid-column: 1/-1; min-height: 52px; max-height: 24dvh; padding: .45rem .5rem;
        border: 0; outline: 0; background: transparent; resize: none; line-height: 1.55;
    }
    .control-composer__row { grid-column: 1/-1; justify-content: flex-end; align-items: center; gap: .45rem; }
    .control-composer__attach { width: 48px; min-width: 48px; height: 48px; padding: 0; border-radius: 50%; }
    .control-composer__attach > span[aria-hidden="true"] { display: block; font-size: 1.55rem; font-weight: 400; line-height: 1; }
    .control-composer__attach-label { display: none; }
    .control-composer__send { min-width: 78px; min-height: 48px; padding: .5rem .9rem; border-radius: 14px; }
    .control-vision-note { display: none; }

    .rank-scroll { min-width: 0; overflow: visible; }
    .rank-archive .rank-ladder {
        display: grid; grid-template-columns: 1fr; gap: 1rem; width: 100%;
        padding: .65rem 0; overflow: visible; scroll-snap-type: none;
    }
    .rank-archive .rank-ladder__volume {
        width: 100%; min-width: 0; margin: 0; padding: .7rem;
        background: var(--paper); border: 1px solid var(--border); scroll-snap-align: none;
    }
    .rank-ladder__volume > header { margin: 0; padding: 0 .25rem .6rem; border-bottom: 1px solid var(--border); }
    .rank-ladder__volume > header span { font-size: .65rem; }
    .rank-ladder__volume > header strong { font-size: .72rem; }
    .rank-archive .rank-ladder__volume .rank-ladder__track {
        position: relative; width: 100%; display: grid; grid-template-columns: 1fr; gap: 0; padding-top: .25rem;
    }
    .rank-archive .rank-ladder__volume .rank-ladder__track::before {
        display: block; left: 24px; right: auto; top: 1rem; bottom: 1rem; width: 2px; height: auto;
        background: var(--border-strong);
    }
    .rank-archive .rank-ladder__volume .rank-ladder__step {
        width: 100%; min-height: 62px; display: grid; grid-template-columns: 48px minmax(0,1fr) auto;
        grid-template-rows: auto auto; justify-items: stretch; align-items: center; gap: .12rem .7rem;
        padding: .45rem .35rem; text-align: left; border-bottom: 1px solid rgba(214,203,189,.72);
    }
    .rank-archive .rank-ladder__volume .rank-ladder__step:last-child { border-bottom: 0; }
    .rank-archive .rank-ladder__volume .rank-ladder__step:hover,
    .rank-archive .rank-ladder__volume .rank-ladder__step:focus-visible { transform: none; background: var(--surface); }
    .rank-archive .rank-ladder__volume .rank-ladder__node {
        grid-column: 1; grid-row: 1/3; z-index: 1; width: 34px; height: 34px; justify-self: center;
    }
    .rank-archive .rank-ladder__volume .rank-ladder__step strong {
        grid-column: 2; grid-row: 1; align-self: end; color: var(--ink); font-size: .9rem;
    }
    .rank-archive .rank-ladder__volume .rank-ladder__step small {
        grid-column: 2; grid-row: 2; align-self: start; color: var(--ink-3); font-size: .68rem;
    }
    .rank-ladder__status {
        grid-column: 3; grid-row: 1/3; display: inline-flex; align-items: center; justify-content: center;
        min-width: 54px; min-height: 30px; padding: .25rem .45rem; color: var(--ink-3);
        border: 1px solid var(--border); background: var(--surface); font-size: .62rem; font-weight: 800; white-space: nowrap;
    }
    .rank-ladder__step--reached .rank-ladder__status { color: var(--indigo); border-color: var(--indigo); }
    .rank-ladder__step--current { background: linear-gradient(90deg,var(--vermilion-soft),transparent 72%) !important; }
    .rank-ladder__step--current .rank-ladder__status { color: var(--on-action); border-color: var(--vermilion); background: var(--accent-bg); }
    .rank-ladder__step--next .rank-ladder__status { color: var(--vermilion); border-color: var(--vermilion); }
    .rank-ladder__button.is-selected::after { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    .control-assistant-scenes__summary,.control-composer__surface { transition: none; }
}

/* v0.3.9: compact mobile tasks, shared spelling keyboard and conversation management. */
.control-tools-toggle { display:none; }
.control-management-tabs { display:flex; border-bottom:1px solid var(--border); margin-bottom:.7rem; }
.control-management-tabs button { flex:1; min-height:48px; border:0; background:transparent; color:var(--ink-2); font:inherit; cursor:pointer; }
.control-management-tabs [aria-selected="true"] { color:var(--indigo); background:var(--indigo-soft); font-weight:700; }
#control-history-query { display:grid; gap:.45rem; margin:.75rem 0; }
#control-history-query input,#control-history-query select { min-width:0; width:100%; min-height:44px; }
.control-history-item { display:grid; grid-template-columns:1fr auto auto; align-items:center; border-bottom:1px solid var(--border); gap:.2rem; }
.control-history-open { min-width:0; padding:.7rem .3rem; border:0; background:transparent; text-align:left; cursor:pointer; color:var(--ink); }
.control-history-open strong,.control-history-open small { display:block; overflow-wrap:anywhere; }
.control-history-open small { margin-top:.25rem; color:var(--ink-2); font-size:.7rem; }
.control-history-item > button { min-height:48px; }
#control-history-state:empty { display:none; }
.spelling-keyboard[hidden] { display:none !important; }
.spelling-keyboard { position:fixed; z-index:90; inset:auto 0 0; padding:8px 4px calc(16px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); background:var(--paper-deep); border-top:1px solid var(--border-strong); user-select:none; touch-action:manipulation; }
.spelling-keyboard__row { display:flex; justify-content:center; gap:4px; margin-top:8px; }
.spelling-keyboard__row:first-child { margin-top:0; }
.spelling-keyboard__row:nth-child(2) { padding:0 5%; }
.spelling-keyboard__row:nth-child(3) { padding:0; }
.spelling-keyboard button { flex:1; min-width:0; height:44px; min-height:44px; border:1px solid var(--border); border-radius:6px; background:var(--surface-strong); box-shadow:0 1px 1px rgba(37,40,58,.13); color:var(--ink); font:500 21px/1 system-ui,sans-serif; padding:2px; cursor:pointer; touch-action:none; }
.spelling-keyboard button svg { display:block; width:22px; height:22px; margin:auto; fill:none; stroke:currentColor; stroke-width:1.7; stroke-linejoin:round; stroke-linecap:round; }
.spelling-keyboard button[data-key="shift"],.spelling-keyboard button[data-key="delete"] { flex:1.5; background:var(--border); }
.spelling-keyboard button[data-key="shift"][aria-pressed="true"] { color:var(--indigo); background:var(--indigo-soft); border-color:var(--indigo); }
.spelling-keyboard .shift-lock-line { display:none; }
.spelling-keyboard [data-shift="locked"] .shift-lock-line { display:block; }
.spelling-keyboard button:active,.spelling-keyboard button[data-pressed] { background:var(--indigo-soft); transform:translateY(1px); }
.spelling-keyboard button[data-key="delete"],.spelling-keyboard__row:last-child button { font-size:14px; }
.spelling-keyboard button[data-key="enter"] { flex:2; color:var(--on-action); background:var(--action-bg); }
.spelling-keyboard button[data-key=" "] { flex:2; }
@media(max-width:767px) and (max-height:600px), (pointer:coarse) and (orientation:landscape) and (max-height:600px) {
    .spelling-keyboard button { height:44px; min-height:44px; }
}
@media(max-width:767px) and (max-height:500px) and (orientation:landscape), (pointer:coarse) and (orientation:landscape) and (max-height:600px) {
    .spelling-keyboard { display:grid; grid-template-columns:repeat(12,minmax(0,1fr)); grid-template-rows:repeat(3,44px); gap:6px; padding-block:6px; }
    .spelling-keyboard__row { display:contents; }
    .spelling-keyboard__row:first-child button { grid-row:1; }
    .spelling-keyboard__row:nth-child(2) button { grid-row:2; }
    .spelling-keyboard__row:nth-child(3) button { grid-row:3; }
    .spelling-keyboard button[data-key="delete"] { grid-row:1; grid-column:11 / 13; }
    .spelling-keyboard button[data-key="-"] { grid-row:2; grid-column:10; }
    .spelling-keyboard button[data-key="'"] { grid-row:2; grid-column:11; }
    .spelling-keyboard button[data-key="hide"] { grid-row:2; grid-column:12; }
    .spelling-keyboard button[data-key="shift"] { grid-row:3; grid-column:1; }
    .spelling-keyboard button[data-key=" "] { grid-row:3; grid-column:9 / 11; }
    .spelling-keyboard button[data-key="enter"] { grid-row:3; grid-column:11 / 13; }
}
.growth-mobile-fold { min-width:0; }
@media (min-width:768px) {
    .growth-mobile-fold { display:contents; }
    .growth-mobile-fold > summary { display:none; }
    .growth-mobile-title { display:none; }
}
@media (max-width:767px) {
    :root { --mobile-nav-height:56px; }
    body { padding-bottom:calc(56px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
    .mobile-nav { min-height:calc(56px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
    .mobile-nav__item { min-height:56px; gap:2px; }
    .mobile-nav__item .mobile-nav__icon { display:grid; place-items:center; width:38px; height:25px; border-radius:8px; }
    .mobile-nav__icon svg { width:20px; height:20px; }
    .mobile-nav__item b { font-size:11px; font-weight:500; }
    .mobile-nav__item.is-active { background:transparent; }
    .mobile-nav__item.is-active .mobile-nav__icon { background:var(--vermilion-soft); }
    .mobile-nav__item.is-active svg { stroke-width:2.4; }
    .mobile-nav__item.is-active b { font-weight:800; }
    .mobile-action-bar { bottom:calc(56px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
    .review-workspace { padding-bottom:calc(70px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
    .review-current-progress { display:none; }
    .review-tabs--three button { min-height:52px; }
    .review-tabs--three button small span { font-size:inherit; }
    .review-mode-panel,.review-task-card,.word-pronounce-row { min-width:0; max-width:100%; }
    .review-mode-panel .word-pronounce-row { display:grid; grid-template-columns:minmax(0,1fr) 48px; gap:8px; }
    .review-mode-panel .quiz-word-big { min-width:0; max-width:100%; font-size:clamp(22px,8vw,42px); overflow-wrap:anywhere; word-break:normal; }
    .review-mode-panel .pronounce-button { min-width:48px; width:48px; padding:.25rem; }
    .review-task-heading h1 { font-size:18px; }
    .review-meaning-prompt { margin:.5rem 0; text-align:left; font-size:16px; }
    .review-mode-panel .quiz-sentence { font-size:19px; line-height:1.5; overflow-wrap:anywhere; padding:.6rem 0; }
    .quiz-opt-btn .opt-text { min-width:0; overflow-wrap:anywhere; }
    body.has-spelling-keyboard { padding-bottom:calc(var(--spelling-keyboard-height,200px) + 66px); }
    body.has-spelling-keyboard .mobile-nav { display:none; }
    body.has-spelling-keyboard .spelling-input--docked { position:fixed; z-index:91; left:12px; bottom:calc(var(--spelling-keyboard-height,200px) + 6px); width:calc(100% - 24px); height:48px; min-height:48px; margin:0; background:var(--surface-strong); font-size:20px; border:2px solid var(--indigo); box-shadow:0 3px 10px rgba(37,40,58,.15); }
    body.has-spelling-keyboard .review-task-card { max-height:calc(100dvh - var(--spelling-keyboard-height,200px) - 240px - var(--safe-top,0px)); min-height:0; overflow-y:auto; overscroll-behavior:contain; padding-bottom:12px; }
    body.has-spelling-keyboard .review-primary-action { display:none; }
    body.has-spelling-keyboard .review-queue,body.has-spelling-keyboard .review-rules { display:none; }
    body.has-spelling-keyboard .review-workspace { padding-bottom:0; }
    body.has-spelling-keyboard .review-compact-head { min-height:36px; margin-bottom:4px; }
    body.has-spelling-keyboard .review-task-heading .btn-fav-toggle { min-height:40px; }
    body.has-spelling-keyboard .spell-card { padding-bottom:66px; }
    .control-tools-toggle { display:inline-flex; align-items:center; justify-content:center; min-height:44px; padding:0 .5rem; border:0; background:transparent; color:var(--indigo); font-family:inherit; font-size:12px; font-weight:600; line-height:1.2; white-space:nowrap; cursor:pointer; }
    body:has(.control-page) .site-header .header-status { display:none; }
    .control-page { height:calc(100dvh - 110px - var(--safe-top,0px) - var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
    body.has-ime-open .control-page { height:calc(100dvh - 54px - var(--safe-top,0px)); }
    .control-tools-folded .control-chat__head,.control-tools-folded #control-english-scenes { display:none !important; }
    .control-chat__head { min-height:52px; padding:2px 6px; }
    .control-mobile-actions button { min-height:46px; padding:.25rem; }
    .control-chat__head-actions .assistant-language-switch { height:46px; }
    .control-chat__head-actions .assistant-language-switch button { min-height:46px; }
    .control-composer { padding:4px 6px; gap:0; }
    .control-composer__surface { display:grid; grid-template-columns:44px minmax(0,1fr) 58px; align-items:end; gap:4px; padding:3px; border-radius:14px; box-shadow:none; overflow:visible; }
    .control-composer__row { display:contents; }
    .control-composer__surface .control-composer__attach { grid-column:1; grid-row:2; width:44px; min-width:44px; height:44px; min-height:44px; border:0; background:transparent; }
    .control-composer textarea { grid-column:2; grid-row:2; min-width:0; width:100%; min-height:44px; max-height:104px; padding:10px 2px; font-size:16px; line-height:24px; overflow-y:auto; }
    .control-composer__surface .control-composer__send { grid-column:3; grid-row:2; min-width:0; min-height:44px; height:44px; padding:.2rem; border-radius:10px; font-size:13px; }
    .control-attachments { grid-column:1/-1; grid-row:1; }
    .control-attachments:empty { display:none; }
    .control-sidebar,.control-preview { bottom:calc(56px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom))); }
    .control-history-open { padding:.7rem .2rem; }
    #growth-app > .page-heading { display:flex; flex-direction:row; align-items:center; gap:8px; padding:0 0 10px; margin-bottom:10px; }
    #growth-app > .page-heading h1 { font-size:22px; margin:0; }
    #growth-app > .page-heading .growth-desktop-title,#growth-app > .page-heading p { display:none; }
    #growth-refresh { width:auto; min-height:44px; padding:.4rem .65rem; white-space:nowrap; font-size:12px; }
    #growth-app .rank-archive { display:flex; flex-direction:column; gap:10px; margin-top:0; }
    #growth-app .rank-ledger__identity { display:grid; grid-template-columns:88px minmax(0,1fr); grid-template-rows:auto auto auto; column-gap:14px; row-gap:3px; padding:12px; min-height:0; }
    #growth-app .rank-ledger__identity > .eyebrow { display:none; }
    #growth-app #rank-legacy-figure { grid-column:1; grid-row:1/4; width:88px; height:110px; min-height:0; margin:0; padding:0; align-self:center; }
    #growth-app .rank-portrait-image--growth { width:100%; height:100%; object-fit:contain; clip-path:none; }
    #growth-app #g-rank { grid-column:2; width:auto; justify-self:start; border:0; padding:0; font-size:12px; }
    #growth-app #rank-title { grid-column:2; margin:0; font-size:30px; line-height:1.15; }
    #growth-app .rank-identity-metrics { grid-column:2; margin:0; border:0; gap:8px; }
    #growth-app .rank-identity-metrics span { padding:0; border:0; font-size:11px; }
    #growth-app .rank-identity-metrics strong { display:inline; margin-left:3px; font-size:17px; }
    #growth-app .rank-diagnostic { grid-column:1/-1; margin:4px 0 0; font-size:11px; }
    #growth-app .rank-ledger__progress { padding:0; }
    #growth-app .rank-ledger__progress > .section-heading { margin:0 0 6px; }
    #growth-app .rank-ledger__progress > .section-heading > div { display:none; }
    #growth-app #g-gap { font-size:13px; }
    #growth-app .rank-next-progress { margin:0 0 10px; }
    #growth-app .rank-ledger__advice { padding:12px; min-height:0; }
    #growth-app .rank-ledger__advice > .eyebrow { display:none; }
    #growth-app .rank-ledger__advice h3 { font-size:18px; }
    #growth-app .section-block { margin-top:12px; }
    #growth-app .radar-ledger { margin-top:12px; }
    #growth-app .radar-ledger .section-heading h2 { font-size:18px; }
    #growth-app .radar-ledger .section-heading .eyebrow,#growth-app .radar-ledger .section-heading small { display:none; }
    #growth-app .radar-triptych { gap:8px; }
    #growth-app .radar-chart { height:230px; }
    #growth-app .growth-grid { gap:8px; }
    .growth-mobile-fold { display:block; grid-column:1/-1; border:1px solid var(--border); background:var(--surface); margin-top:8px; }
    .growth-mobile-fold > summary { min-height:48px; display:list-item; padding:12px; font-size:14px; font-weight:700; color:var(--indigo); cursor:pointer; }
    .growth-mobile-fold > :not(summary) { margin:0; border:0; }
    .growth-mobile-fold[open] > summary { border-bottom:1px solid var(--border); }
    #growth-app [id] { scroll-margin-top:64px; }
}
@media (max-width:767px) and (max-height:500px) {
    .spelling-keyboard button { height:44px; min-height:44px; }
    body.has-spelling-keyboard .site-header,body.has-spelling-keyboard .review-compact-head { display:none; }
    body.has-spelling-keyboard .review-tabs--three { position:static; }
    body.has-spelling-keyboard .review-tabs--three button { min-height:36px; }
    body.has-spelling-keyboard .review-task-card { max-height:calc(100dvh - var(--spelling-keyboard-height,160px) - 105px); }
}

@media (max-width:767px) {
 body.has-spelling-keyboard .study-spelling-panel { max-height:calc(100dvh - var(--spelling-keyboard-height,200px) - 200px); overflow-y:auto; overscroll-behavior:contain; padding-bottom:12px; }
 body.has-spelling-keyboard .study-spelling-panel > button { display:none; }
 body.has-spelling-keyboard .spelling-input--docked { max-width:none; }
 #growth-app > .page-heading h1 { font-size:22px !important; }
 #growth-app .rank-next-progress { grid-template-columns:auto minmax(0,1fr); padding:4px 0; gap:10px; min-height:24px; }
 #growth-app .rank-next-progress > span { margin:0; }
 #growth-app .rank-next-progress .progress-track { height:8px; min-height:8px; margin:0; }
 #growth-app .rank-ledger__progress > .section-heading { margin:0; }
 #growth-app .rank-ledger__progress > .section-heading #g-gap::before { content:'还差 '; }
 .spelling-keyboard button[data-key="delete"] { flex:1.5; white-space:nowrap; }
}
@media (max-width:767px) and (max-height:500px) {
 body.has-spelling-keyboard .review-task-card { max-height:calc(100dvh - var(--spelling-keyboard-height,160px) - 130px); }
}
@media (min-width:768px) and (max-width:1199px) {
 .control-resizer { display:none; }
 .control-workbench { height:auto; grid-template-rows:minmax(560px,calc(100dvh - 220px)) auto; }
 .control-preview { min-height:360px; }
}

/* v0.3.10: one coherent next-rank summary. */
#growth-app .rank-next-progress {display:block;padding:16px;border:0;margin:0;}
.rank-next-progress__labels {display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:10px;font-size:14px;}
#growth-app .rank-next-progress .progress-track {height:8px;min-height:8px;}
#growth-app #g-gap::before {content:none;}
#recover-spelling {display:block;margin:12px 0;font-size:13px;line-height:1.6;}

/* The cloze reader shares the paper, ink and vermilion palette. */
.cloze-reader {--reader-font:18px;max-width:960px;margin:auto;padding:0 24px 110px;}
.cloze-toolbar,.cloze-markbar {display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:10px 0;border-bottom:1px solid var(--border);background:var(--paper,var(--surface));}
.cloze-toolbar button,.cloze-markbar button {font:inherit;font-size:13px;padding:8px 10px;border:1px solid var(--border);background:transparent;color:var(--indigo,var(--action-bg));cursor:pointer;}
.cloze-markbar {padding:6px 0;gap:6px;font-size:12px;}
.cloze-markbar button[aria-pressed=true] {background:var(--action-bg);color:var(--on-action);}
.cloze-article {padding:24px 0;border:0;}
.cloze-article h1 {font-size:clamp(24px,5vw,34px);line-height:1.25;margin:8px 0 10px;}
.cloze-article header p {font-size:12px;}
#cloze-content {font-size:var(--reader-font);line-height:1.9;white-space:pre-wrap;overflow-wrap:break-word;color:var(--ink,#222);}
.cloze-gap-button {display:inline-block;min-width:2.8em;max-width:100%;padding:0 .3em;margin:0 .15em;font:inherit;font-weight:600;line-height:1.65;border:0;border-bottom:2px solid var(--action-bg);background:transparent;color:var(--action-bg);cursor:pointer;}
.cloze-gap-button:focus-visible,.cloze-gap-button.is-current {outline:2px solid #b94e32;outline-offset:2px;}
.cloze-gap-button.is-correct {background:var(--success-soft);}.cloze-gap-button.is-wrong {background:var(--danger-soft);}
.cloze-token.mark-highlight {background:#f6dfa0;}.cloze-token.mark-underline {text-decoration:underline;text-underline-offset:4px;}.cloze-token.mark-unknown {color:#a6422e;font-weight:600;}
.cloze-dock {position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:min(100%,960px);display:flex;align-items:center;justify-content:flex-end;gap:10px;background:var(--surface);padding:10px 16px;z-index:30;border-top:1px solid var(--border);}
.cloze-dock>span {margin-right:auto;font-size:13px;}.cloze-dock .btn {min-height:42px;padding:8px 16px;}
.cloze-sheet {position:fixed;inset:0;z-index:160;background:#171d3155;display:flex;align-items:center;justify-content:center;}
.cloze-sheet[hidden] {display:none;}.cloze-sheet>section {background:var(--surface);width:min(640px,100%);max-height:80dvh;overflow:auto;padding:18px 20px;box-shadow:0 10px 35px #17203b33;}
.cloze-sheet header {display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}.cloze-sheet button {cursor:pointer;min-height:40px;font:inherit;}
#cloze-numbers {display:flex;flex-wrap:wrap;gap:6px;}#cloze-numbers button {min-width:40px;border:1px solid var(--border);background:transparent;}#cloze-numbers .is-current {outline:2px solid var(--action-bg);}#cloze-numbers .is-correct {background:var(--success-soft);}#cloze-numbers .is-wrong {background:var(--danger-soft);}#cloze-numbers .is-filled {font-weight:700;color:var(--action-bg);}
#cloze-bank {display:flex;flex-wrap:wrap;gap:8px;}#cloze-bank button {padding:6px 12px;border:1px solid var(--border);background:var(--surface);}#cloze-bank button.is-used {text-decoration:underline;color:var(--ink-2);}#cloze-bank button:disabled {opacity:.55;}
#cloze-explanation {margin-top:16px;line-height:1.7;font-size:14px;}#cloze-result {border-top:2px solid var(--action-bg);padding:16px 0;font-size:14px;}
#cloze-filter {display:flex;flex-wrap:wrap;gap:8px;}#cloze-filter input {min-width:0;flex:1 1 180px;}#cloze-filter select {width:auto;min-width:0;}#cloze-library-list button {display:flex;flex-direction:column;align-items:flex-start;width:100%;padding:14px 0;border:0;border-bottom:1px solid var(--border);background:transparent;text-align:left;}#cloze-library-list span {font-size:12px;color:var(--ink-2);}
@media(max-width:767px){.cloze-reader {padding:0 16px 132px;}.cloze-toolbar {position:sticky;top:var(--app-header-height,56px);z-index:25;flex-wrap:nowrap;overflow-x:auto;}.cloze-toolbar button {flex-shrink:0;}.cloze-markbar {gap:4px;}.cloze-markbar button {padding:6px 8px;min-height:38px;}.cloze-article {padding:18px 0;}.cloze-dock {bottom:calc(56px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom,0px)));}.cloze-sheet {align-items:flex-end;}.cloze-sheet>section {max-height:62dvh;padding:16px 16px calc(16px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom,0px)));}.cloze-sheet button {min-height:44px;}}

.word-detail-trigger {border:0;background:transparent;padding:0;color:inherit;cursor:pointer;max-width:100%;}
.word-learning-detail {width:min(680px,calc(100% - 24px));max-height:85dvh;overflow:auto;background:var(--surface);color:#23263a;border:1px solid #c8c3b6;padding:22px;}
.word-learning-detail::backdrop {background:#17203b66;}.word-learning-detail header {display:flex;align-items:center;justify-content:space-between;gap:14px;}.word-learning-detail h2 {overflow-wrap:anywhere;font-size:28px;}.word-learning-detail h3 {font-size:15px;margin:22px 0 8px;}.word-learning-detail p {white-space:pre-wrap;line-height:1.8;font-size:15px;}.word-learning-detail footer {display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}.word-learning-detail button {min-height:42px;padding:8px 12px;}