/* Independent account and operations surfaces; colors come from the learning themes. */
.admin-nav svg{width:19px;height:19px}.admin-readiness.admin-panel-body{padding:22px}
.account-shell,.admin-shell{margin:0;padding:0;min-height:100dvh;background:var(--paper);color:var(--ink);font-family:"Microsoft YaHei UI","PingFang SC",system-ui,sans-serif;font-size:14px;line-height:1.65}
.account-shell *,.admin-shell *{box-sizing:border-box}
.account-shell [hidden],.admin-shell [hidden]{display:none!important}
.account-shell a,.admin-shell a{text-decoration:none}
.account-shell button,.admin-shell button,.account-shell input,.admin-shell input,.account-shell select,.admin-shell select,.admin-shell textarea{font:inherit}
.account-shell button,.admin-shell button{cursor:pointer}
.account-shell button:disabled,.admin-shell button:disabled{cursor:default;opacity:.55}
.aa-sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.aa-skip{position:fixed;top:-100px;left:18px;z-index:100;padding:12px 20px;color:var(--on-action);background:var(--action-bg);border-radius:8px}.aa-skip:focus{top:12px}
.aa-topbar{display:flex;justify-content:space-between;align-items:center;gap:20px;max-width:1440px;margin:auto;padding:26px 44px}
.aa-brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink);font-weight:700;font-size:16px;line-height:1.4}
.aa-brand-mark{display:grid;place-items:center;width:44px;height:44px;flex:none;border:1px solid var(--border-strong);border-radius:7px;color:var(--indigo);font:15px Georgia,serif;letter-spacing:.02em}
.aa-brand small{display:block;margin-top:3px;color:var(--ink-3);font-size:11px;font-weight:500;letter-spacing:.08em}
.aa-topbar-actions{display:flex;align-items:center;gap:22px;min-width:0}
.aa-topbar-actions select{min-height:44px;max-width:122px;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--ink-2);padding:8px 30px 8px 12px}
.aa-link{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:44px;color:var(--indigo);font-size:13px;font-weight:600}.aa-link:hover{text-decoration:underline!important;text-underline-offset:4px}
.aa-eyebrow{margin:0 0 12px;color:var(--vermilion);font-size:12px;font-weight:700;letter-spacing:.1em}
.account-layout{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(340px,.88fr);gap:70px;align-items:start;width:min(1120px,100%);margin:46px auto 40px;padding:0 40px}
.account-intro{position:relative;min-height:540px;padding:24px 0 0}.account-intro h1{margin:20px 0 25px;font-size:clamp(30px,3.6vw,45px);font-weight:600;letter-spacing:-.045em;line-height:1.5;font-family:"Noto Serif SC","Songti SC",SimSun,serif}.account-intro-copy{max-width:345px;margin:0;color:var(--ink-2);font-size:15px;line-height:1.95}
.account-bookmark{display:flex;align-items:center;gap:24px;max-width:330px;margin:55px 0 28px;padding:25px 0;border-block:1px solid var(--border)}.account-bookmark>span{color:var(--indigo);font:38px "Songti SC",SimSun,serif;letter-spacing:.14em}.account-bookmark i{width:1px;height:40px;background:var(--border-strong)}.account-bookmark small{color:var(--ink-3);font-size:12px;letter-spacing:.15em;line-height:1.9}.account-intro-note{max-width:340px;color:var(--ink-3);font-size:12px;line-height:1.9}
.account-card{padding:32px 34px 30px;border:1px solid var(--border);border-radius:16px;background:var(--surface);box-shadow:var(--shadow-soft);min-width:0}.account-card-heading h2{margin:0;font-size:26px;letter-spacing:-.035em;line-height:1.4}.account-card-heading>p:last-child{margin:12px 0 25px;color:var(--ink-2);font-size:13px;line-height:1.8}
.aa-form{display:grid;gap:18px}.aa-form label{display:grid;gap:7px;color:var(--ink);font-size:13px;font-weight:600}.aa-form input,.aa-form textarea,.aa-form select{display:block;width:100%;min-width:0;min-height:46px;padding:10px 12px;border:1px solid var(--border-strong);border-radius:8px;background:var(--surface-strong);color:var(--ink);font-size:14px;font-weight:400;line-height:1.6}.aa-form textarea{min-height:110px;resize:vertical}.aa-form small{color:var(--ink-3);font-size:12px;font-weight:400;line-height:1.7}.aa-form input:focus,.aa-form select:focus,.aa-form textarea:focus{border-color:var(--indigo);outline:2px solid var(--indigo-soft);outline-offset:2px}.aa-password-field{display:flex;overflow:hidden;border:1px solid var(--border-strong);border-radius:8px;background:var(--surface-strong)}.aa-password-field:focus-within{outline:2px solid var(--indigo-soft);outline-offset:2px;border-color:var(--indigo)}.aa-password-field input{border:0;border-radius:0;flex:1;width:1px}.aa-password-field input:focus{outline:0}.aa-password-field button{flex:none;min-width:54px;min-height:46px;padding:0 12px;border:0;border-left:1px solid var(--border);background:transparent;color:var(--ink-2);font-size:12px;font-weight:600}
.aa-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 17px;border:1px solid transparent;border-radius:8px;font-size:13px;font-weight:650;line-height:1.5;letter-spacing:.01em;white-space:normal;text-align:center;transition:background .15s,border-color .15s,box-shadow .15s,transform .15s}.aa-button:hover:not(:disabled){transform:translateY(-1px)}.aa-button:active:not(:disabled){transform:translateY(0)}.aa-button-primary{background:var(--action-bg);color:var(--on-action);box-shadow:0 2px 0 #00000012}.aa-button-primary:hover:not(:disabled){background:var(--action-hover);color:var(--on-action)}.aa-button-secondary{border-color:var(--border-strong);background:var(--surface);color:var(--ink)}.aa-button-secondary:hover:not(:disabled){border-color:var(--indigo);background:var(--indigo-soft);color:var(--indigo)}.aa-button-quiet{border-color:var(--border);background:transparent;color:var(--ink-2)}.aa-button-danger{border-color:var(--danger);background:var(--danger-soft);color:var(--danger)}.aa-button-full{width:100%}.aa-button-small{padding:7px 11px;font-size:12px}.aa-form-between{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:-9px 0 -3px}.aa-form-foot{display:flex;align-items:center;justify-content:center;gap:6px;margin:0;color:var(--ink-2);font-size:12px}.aa-return{justify-self:center}.aa-hint{margin:0;color:var(--ink-2);font-size:13px;line-height:1.85}.aa-message{margin:0 0 20px;padding:12px 14px;border:1px solid var(--border);border-left:3px solid var(--indigo);border-radius:6px;background:var(--indigo-soft);color:var(--ink);font-size:13px;line-height:1.8;overflow-wrap:anywhere}.aa-message[data-tone=error]{border-color:var(--danger);background:var(--danger-soft);color:var(--danger)}.aa-message[data-tone=success]{border-color:var(--success);background:var(--success-soft);color:var(--ink)}.aa-loading{padding:25px 0;color:var(--ink-3);font-size:13px}.account-footer{display:flex;justify-content:center;gap:12px;padding:15px 24px 28px;color:var(--ink-3);font-size:11px}.account-footer a{color:var(--ink-2)}.aa-details{margin:0 0 22px;border-block:1px solid var(--border)}.aa-details>div{display:grid;grid-template-columns:84px minmax(0,1fr);gap:12px;padding:11px 0;border-bottom:1px solid var(--border)}.aa-details>div:last-child{border:0}.aa-details dt{color:var(--ink-3);font-size:12px}.aa-details dd{margin:0;font-size:13px;overflow-wrap:anywhere}.aa-security-password{margin:26px 0;padding:24px 0;border-block:1px solid var(--border)}.aa-security-password h3{margin:0;font-size:16px}
.admin-shell{display:grid;grid-template-columns:228px minmax(0,1fr)}.admin-sidebar{position:sticky;top:0;display:flex;flex-direction:column;height:100dvh;padding:28px 20px 20px;border-right:1px solid var(--border);background:var(--surface)}.admin-sidebar .aa-brand{font-size:14px;gap:10px}.admin-sidebar .aa-brand-mark{width:40px;height:40px;font-size:13px}.admin-nav-caption{margin:45px 12px 13px;color:var(--ink-3);font-size:11px;letter-spacing:.06em}.admin-nav{display:grid;gap:5px}.admin-nav a{display:flex;align-items:center;gap:12px;min-height:46px;padding:10px 13px;border:1px solid transparent;border-radius:7px;color:var(--ink-2);font-size:13px;font-weight:500;transition:background .15s,color .15s}.admin-nav a>span{display:grid;place-items:center;width:22px;flex:none;font-size:20px;line-height:1}.admin-nav a:hover{color:var(--indigo);background:var(--paper)}.admin-nav a[aria-current=page]{color:var(--indigo);border-color:var(--border);background:var(--indigo-soft);font-weight:700}.admin-sidebar-bottom{display:grid;margin-top:auto;padding:24px 10px 0;border-top:1px solid var(--border)}.admin-sidebar-bottom .aa-link{justify-content:flex-start;font-size:12px}.admin-sidebar-bottom p{margin:14px 0 0;color:var(--ink-3);font-size:10px}.admin-workspace{display:flex;flex-direction:column;min-width:0;min-height:100dvh}.admin-topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:85px;padding:17px 36px;border-bottom:1px solid var(--border);background:var(--surface)}.admin-topbar>p{display:flex;align-items:center;gap:8px;margin:0;color:var(--ink-3);font-size:12px}.admin-live-dot{width:6px;height:6px;background:var(--success);border-radius:50%}.admin-account{display:block;max-width:180px;min-height:44px;padding:11px 0;color:var(--ink);font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.admin-main{width:100%;max-width:1472px;flex:1;margin:0 auto;padding:35px 36px 48px;min-width:0}.admin-page-heading{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:30px}.admin-page-heading .aa-eyebrow{margin-bottom:7px;font-size:11px}.admin-page-heading h1{margin:0;font-size:28px;font-weight:650;letter-spacing:-.04em;line-height:1.4}.admin-page-heading>div>p:last-child{margin:9px 0 0;color:var(--ink-3);font-size:12px}.admin-page-heading>.aa-button{flex:none}.admin-footer{display:flex;justify-content:space-between;gap:14px;padding:20px 36px;border-top:1px solid var(--border);color:var(--ink-3);font-size:10px}
.admin-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:26px}.admin-stat{padding:20px 22px;border:1px solid var(--border);border-radius:10px;background:var(--surface)}.admin-stat p{margin:0;color:var(--ink-2);font-size:12px}.admin-stat strong{display:block;margin-top:12px;font-size:30px;line-height:1.3;letter-spacing:-.025em;font-weight:600;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.admin-stat small{display:block;margin-top:10px;color:var(--ink-3);font-size:11px}.admin-panel{min-width:0;margin-bottom:22px;border:1px solid var(--border);border-radius:10px;background:var(--surface);overflow:hidden}.admin-panel-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 22px;border-bottom:1px solid var(--border)}.admin-panel-heading h2{margin:0;font-size:15px;font-weight:650}.admin-panel-heading p{margin:4px 0 0;color:var(--ink-3);font-size:12px}.admin-panel-body{padding:22px}.admin-overview-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:22px}.admin-overview-grid .admin-panel{margin-bottom:0}.admin-shortcuts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.admin-shortcut{display:block;min-height:100px;padding:18px;border:1px solid var(--border);border-radius:8px;color:var(--ink)}.admin-shortcut:hover{border-color:var(--indigo);background:var(--paper)}.admin-shortcut strong{display:block;font-size:13px}.admin-shortcut span{display:block;margin-top:7px;color:var(--ink-3);font-size:11px}.admin-readiness{margin:0;padding:0;list-style:none}.admin-readiness li{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:13px 0;border-bottom:1px solid var(--border);font-size:12px}.admin-readiness li:first-child{padding-top:0}.admin-readiness li:last-child{padding-bottom:0;border:0}.admin-readiness span{color:var(--ink-3)}.admin-readiness strong{text-align:right;font-size:12px;font-weight:500}.admin-toolbar{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;padding:18px 22px;border-bottom:1px solid var(--border)}.admin-search{display:flex;align-items:flex-end;gap:10px;flex:1;min-width:0}.admin-search label{display:grid;gap:6px;min-width:0;max-width:360px;flex:1;color:var(--ink-3);font-size:11px}.admin-search input,.admin-filter{width:100%;min-width:0;min-height:44px;padding:9px 12px;border:1px solid var(--border);border-radius:7px;background:var(--surface-strong);color:var(--ink);font-size:13px}.admin-filter{width:auto;max-width:155px}.admin-table-wrap{width:100%;overflow:auto;overscroll-behavior-x:contain}.admin-table{width:100%;min-width:640px;border-collapse:collapse;text-align:left;font-size:12px;line-height:1.7}.admin-table caption{padding:16px 22px;text-align:left;color:var(--ink-3)}.admin-table th{padding:12px 18px;border-bottom:1px solid var(--border);background:var(--paper);color:var(--ink-3);font-size:11px;font-weight:600;white-space:nowrap}.admin-table th:first-child,.admin-table td:first-child{padding-left:22px}.admin-table th:last-child,.admin-table td:last-child{padding-right:22px}.admin-table td{max-width:320px;padding:13px 18px;border-bottom:1px solid var(--border);color:var(--ink-2);vertical-align:middle;overflow-wrap:anywhere}.admin-table tr:last-child td{border-bottom:0}.admin-table tbody tr:hover{background:var(--paper)}.admin-cell-primary{display:block;color:var(--ink);font-size:13px;font-weight:600}.admin-cell-secondary{display:block;margin-top:3px;color:var(--ink-3);font-size:11px}.admin-row-actions{display:flex;gap:7px;align-items:center;min-width:100px}.admin-badge{display:inline-block;max-width:100%;padding:3px 8px;border:1px solid var(--border);border-radius:5px;color:var(--ink-2);background:var(--paper);font-size:10px;font-weight:500;line-height:1.6;white-space:nowrap}.admin-badge[data-tone=success]{color:var(--success);border-color:var(--success);background:var(--success-soft)}.admin-badge[data-tone=danger]{color:var(--danger);border-color:var(--danger);background:var(--danger-soft)}.admin-pagination{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:15px 22px;border-top:1px solid var(--border)}.admin-pagination>p{margin:0;color:var(--ink-3);font-size:11px}.admin-pagination>div{display:flex;align-items:center;gap:8px}.admin-pagination .aa-button{min-width:44px}.admin-pagination span{padding:0 7px;color:var(--ink-2);font-size:11px}.admin-empty{text-align:center;padding:54px 22px}.admin-empty h2{margin:0 0 8px;font-size:17px}.admin-empty p{margin:0;color:var(--ink-3);font-size:12px}.admin-empty .aa-button{margin-top:20px}.admin-settings{max-width:720px}.admin-settings .aa-form{gap:23px}.aa-switch{grid-template-columns:minmax(0,1fr) 44px;align-items:center;padding-bottom:20px;border-bottom:1px solid var(--border)}.aa-switch span>small{display:block;margin-top:4px}.aa-switch input[type=checkbox]{width:22px;min-height:22px;justify-self:end;accent-color:var(--action-bg)}.admin-settings-note{margin:0 0 24px;padding:13px 16px;border:1px solid var(--border);border-radius:7px;color:var(--ink-2);font-size:12px;line-height:1.8}.aa-dialog{width:min(580px,calc(100% - 32px));max-height:calc(100dvh - 48px);padding:0;border:1px solid var(--border-strong);border-radius:14px;background:var(--surface);color:var(--ink);box-shadow:var(--shadow-lift);overflow:auto}.aa-dialog::backdrop{background:#11182780;backdrop-filter:blur(3px)}.aa-dialog-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:15px 22px;border-bottom:1px solid var(--border)}.aa-dialog-heading h2{margin:0;font-size:18px}.aa-icon-button{display:grid;place-items:center;width:44px;min-height:44px;border:1px solid var(--border);border-radius:8px;background:transparent;color:var(--ink-2);font-size:24px}.aa-dialog #admin-dialog-content{padding:22px}.aa-dialog-footer{display:flex;justify-content:flex-end;gap:10px;flex-wrap:wrap;padding-top:8px}.aa-dialog .aa-hint{margin-bottom:18px}.aa-dialog .aa-message{margin-bottom:18px}.admin-json-editor{font-family:Consolas,monospace!important;font-size:12px!important;min-height:300px!important}.admin-metric-line{display:grid;grid-template-columns:minmax(100px,1fr) auto;gap:20px;padding:11px 0;border-bottom:1px solid var(--border);font-size:12px}.admin-metric-line:last-child{border-bottom:0}.admin-metric-line span{color:var(--ink-3)}.admin-metric-line strong{font-weight:600;font-variant-numeric:tabular-nums}
@media(min-width:1600px){.admin-main{padding-top:44px}.account-layout{margin-top:75px}}
@media(max-width:1150px){.account-layout{gap:35px}.account-card{padding:28px}.admin-shell{grid-template-columns:200px minmax(0,1fr)}.admin-sidebar{padding-inline:14px}.admin-main{padding:28px 24px 40px}.admin-topbar{padding-inline:24px}.admin-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-overview-grid{grid-template-columns:1fr}.admin-page-heading h1{font-size:25px}.admin-toolbar{flex-wrap:wrap}.admin-search{min-width:240px}.admin-footer{padding-inline:24px}}
@media(max-width:760px){.aa-topbar{padding:17px 20px;gap:12px}.aa-topbar .aa-brand{font-size:14px}.aa-topbar-actions{gap:12px}.aa-topbar-actions select{max-width:100px;padding-left:9px;font-size:12px}.aa-topbar>.aa-topbar-actions>.aa-link{font-size:0;gap:0}.aa-topbar>.aa-topbar-actions>.aa-link>span{font-size:20px}.account-layout{display:block;max-width:520px;margin:24px auto 20px;padding:0 20px}.account-intro{min-height:0;padding:0}.account-intro>.aa-eyebrow,.account-intro-copy,.account-bookmark,.account-intro-note{display:none}.account-intro h1{margin:8px 0 27px;font-size:28px;line-height:1.45}.account-intro h1 br{display:none}.account-card{padding:25px 23px;border-radius:12px}.account-card-heading h2{font-size:24px}.account-footer{padding-bottom:calc(24px + var(--app-safe-bottom-inset,env(safe-area-inset-bottom)))}.admin-shell{display:block}.admin-sidebar{position:static;height:auto;padding:16px 18px 0;border-right:0;border-bottom:1px solid var(--border)}.admin-sidebar>.aa-brand{font-size:14px}.admin-nav-caption{display:none}.admin-nav{display:flex;gap:6px;overflow:auto;margin:17px -18px 0;padding:0 14px 12px;scrollbar-width:thin}.admin-nav a{flex:none;min-height:44px;padding:8px 12px;font-size:12px}.admin-nav a>span{display:none}.admin-sidebar-bottom{position:absolute;top:16px;right:18px;margin:0;padding:0;border:0}.admin-sidebar-bottom>a:first-child{display:flex;min-height:40px}.admin-sidebar-bottom>a:nth-child(2),.admin-sidebar-bottom p{display:none}.admin-workspace{min-height:calc(100dvh - 134px)}.admin-topbar{min-height:68px;padding:10px 20px}.admin-topbar>p{font-size:11px}.admin-account{max-width:110px;font-size:11px}.admin-main{padding:26px 18px 32px}.admin-page-heading{align-items:flex-start;gap:12px;margin-bottom:24px}.admin-page-heading h1{font-size:23px}.admin-page-heading>div>p:last-child{max-width:260px;font-size:11px}.admin-page-heading>.aa-button{font-size:11px;padding:9px 12px}.admin-stats{gap:10px;margin-bottom:18px}.admin-stat{padding:17px 15px}.admin-stat p{font-size:11px}.admin-stat strong{font-size:27px}.admin-stat small{font-size:10px}.admin-overview-grid{gap:18px}.admin-panel-heading{padding:16px}.admin-panel-body{padding:17px}.admin-shortcuts{gap:9px}.admin-shortcut{padding:14px;min-height:100px}.admin-toolbar{padding:15px;gap:10px}.admin-search{min-width:100%;gap:8px}.admin-search label{max-width:none}.admin-filter{max-width:145px}.admin-table th,.admin-table td{padding-inline:14px}.admin-table th:first-child,.admin-table td:first-child{padding-left:16px}.admin-table th:last-child,.admin-table td:last-child{padding-right:16px}.admin-pagination{padding:14px;gap:10px;align-items:flex-start;flex-wrap:wrap}.admin-footer{padding:18px;flex-wrap:wrap;font-size:10px}.aa-dialog{max-height:calc(100dvh - 30px)}.aa-dialog-heading{padding:12px 18px}.aa-dialog #admin-dialog-content{padding:18px}}
@media(prefers-reduced-motion:reduce){.aa-button,.admin-nav a{transition:none}.aa-button:hover:not(:disabled){transform:none}}