:root{--bg:#f5f4ee;--bg-raised:#faf9f5;--bg-overlay:#fffdf9;--bg-inset:#efede6;--bg-active:#e9e5db;--fg:#1f1e1d;--fg-2:#3d3d3a;--fg-muted:#6e6b64;--fg-faint:#98958d;--border:#e5e1d8;--border-strong:#d4cfc3;--border-faint:#eeece4;--accent:#d97757;--accent-hover:#c15f3c;--accent-text:#a64a28;--accent-text-hover:#7c3a1e;--accent-soft:#f7e8e1;--accent-soft-border:#ecd5c8;--success:#3e7a46;--success-soft:#ebf1e7;--success-border:#d3e0cc;--danger:#c7351f;--danger-soft:#fbeae6;--danger-border:#f2cfc8;--warning:#9a6b15;--warning-soft:#f7f0dc;--warning-border:#e8dab8;--info:#47617a;--info-soft:#e8edf3;--info-border:#d2dee9;--tag-blue-bg:#e8edf3;--tag-blue-text:#3f5b78;--tag-blue-border:#d2dee9;--tag-orange-bg:#f8ece0;--tag-orange-text:#9a5b21;--tag-orange-border:#edd5be;--tag-green-bg:#eaf0e5;--tag-green-text:#4a724f;--tag-green-border:#d5e0ce;--tag-purple-bg:#eeeaf3;--tag-purple-text:#6a5580;--tag-purple-border:#dcd4e7;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, 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12px;display:flex}.frame-dot{border-radius:50%;width:10px;height:10px}.frame-dot.red{background:#ff5f57}.frame-dot.yellow{background:#febc2e}.frame-dot.green{background:#28c840}.frame-title{text-align:center;color:var(--fg-faint);flex:1;margin-right:42px;font-size:12px}.panel-frame-body{padding:16px}.reveal{opacity:0;transition:opacity .6s,transform .6s;transform:translateY(28px)}.reveal.revealed{opacity:1;transform:none}@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transition:none;transform:none}}.mock-chip{color:var(--accent-text);background:var(--accent-soft);border-radius:var(--radius-pill);margin:3px 6px 3px 0;padding:3px 10px;font-size:12px;font-weight:600;display:inline-block}.mock-pills{border:1px solid var(--border);border-radius:var(--radius-sm);gap:0;width:fit-content;margin-bottom:12px;display:flex;overflow:hidden}.mock-pill{color:var(--accent-text);background:var(--bg-overlay);border:none;border-right:1px solid var(--border);cursor:pointer;padding:6px 14px;font-size:13px;font-weight:600;transition:all .15s}.mock-pill:last-child{border-right:none}.mock-pill:hover:not(.active){background:var(--accent-soft)}.mock-pill.active{background:var(--accent);color:#fff}.mock-fake-btn{color:var(--accent-text);background:var(--accent-soft);border:1px solid var(--accent-soft-border);border-radius:var(--radius-sm);cursor:pointer;padding:5px 12px;font-size:12px;font-weight:600;transition:background .15s}.mock-fake-btn:hover{background:var(--accent-soft-border)}.mock-status-chip{white-space:nowrap;border-radius:4px;padding:2px 8px;font-size:12px;font-weight:600}.mock-status-chip.done{color:var(--success);background:var(--success-soft)}.mock-status-chip.busy{color:var(--accent-text);background:var(--accent-soft);animation:1.4s ease-in-out infinite mockPulse}.mock-status-chip.pending{color:var(--fg-muted);background:var(--bg-inset)}@keyframes mockPulse{0%,to{opacity:1}50%{opacity:.45}}@keyframes mockFadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.mock-fade{animation:.3s mockFadeIn}.mock-img-placeholder{border:2px dashed var(--border);border-radius:var(--radius-sm);color:var(--fg-faint);background:var(--bg-inset);justify-content:center;align-items:center;font-size:12px;display:flex}@media (width<=768px){.showcase-section{grid-template-columns:1fr;gap:24px;padding:40px 16px}.showcase-section.reverse .showcase-copy{order:0}.showcase-section.reverse .showcase-panel{order:1}.showcase-copy h3{font-size:21px}}.mock-worksheet{font-size:13px}.mock-upload-row{align-items:center;gap:14px;margin-bottom:14px;display:flex}.mock-hw-img{object-fit:cover;border-radius:var(--radius-sm);border:1px solid var(--border);flex-shrink:0;width:150px;height:84px}.mock-upload-meta{flex-direction:column;gap:5px;min-width:0;display:flex}.mock-student-chip{color:var(--accent-text);background:var(--accent-soft);border-radius:var(--radius-pill);width:fit-content;padding:3px 10px;font-size:13px;font-weight:700}.mock-ocr-status{color:var(--success);font-size:12.5px;font-weight:600}.mock-ocr-caption{color:var(--fg-faint);font-size:11px}.mock-error-row{border-radius:var(--radius-sm);align-items:flex-start;gap:10px;padding:8px 10px;transition:background .15s;display:flex}.mock-error-row:hover{background:var(--accent-soft)}.mock-err-badge{color:var(--danger);background:var(--danger-soft);border:1px solid var(--danger-border);white-space:nowrap;border-radius:4px;margin-top:2px;padding:1px 7px;font-size:11px;font-weight:700}.mock-err-line{color:var(--fg-muted);margin:0;-webkit-text-decoration:line-through #c7351f66;text-decoration:line-through #c7351f66}.mock-orig-line{color:var(--fg-muted);margin:0}.mock-fix-line{color:var(--fg);margin:2px 0 0;font-weight:500}.mock-drill-item{background:var(--bg-inset);border-radius:var(--radius-sm);color:var(--fg);align-items:baseline;gap:8px;margin:0 0 10px;padding:7px 10px;display:flex}.mock-blank{border-bottom:2px dotted var(--accent);color:var(--accent-text);letter-spacing:1px}.mock-blank-line{border-bottom:2px dotted var(--fg-faint);flex:1;min-width:60px}.mock-up-badge{color:var(--success);background:var(--success-soft);border:1px solid var(--success-border);white-space:nowrap;border-radius:4px;margin-top:2px;padding:1px 7px;font-size:11px;font-weight:700}.mock-ws-footer{border-top:1px solid var(--border-faint);align-items:center;gap:10px;margin-top:14px;padding-top:12px;display:flex}.mock-print-preview{align-items:center;gap:6px;margin-left:auto;display:flex}.mock-print-preview img{object-fit:cover;border:1px solid var(--border);border-radius:4px;width:42px;height:58px}.mock-print-ph{width:42px;height:58px;font-size:16px}.mock-print-preview span{color:var(--fg-faint);font-size:11px}.mock-continuation{font-size:13px}.mock-story-card{background:linear-gradient(135deg, var(--accent-soft), var(--bg-raised));border:1px solid var(--accent-soft-border);border-radius:var(--radius-sm);margin-bottom:12px;padding:10px 14px}.mock-story-card p{color:var(--fg-2);margin:0;font-style:italic;line-height:1.65}.mock-story-para1{font-weight:600;color:var(--fg)!important;margin-top:6px!important}.mock-cw-para{color:var(--fg);margin:0 0 10px;line-height:1.7}.mock-cw-para strong{color:var(--fg)}.mock-method-table{border-collapse:collapse;width:100%;font-size:12.5px}.mock-method-table th{text-align:left;background:var(--bg-inset);color:var(--fg);border-bottom:1px solid var(--border);white-space:nowrap;padding:6px 8px}.mock-method-table td{border-bottom:1px solid var(--bg-inset);color:var(--fg);vertical-align:top;padding:6px 8px}.mock-method-table td:first-child{white-space:nowrap;color:var(--accent-text);font-weight:600}.mock-method-table td:nth-child(2){white-space:nowrap}.mock-method-more td{text-align:center;color:var(--fg-faint);border-bottom:none;font-size:12px}.mock-pattern-group{margin-bottom:8px}.mock-pattern-label{color:var(--fg);background:var(--bg-inset);border-radius:4px;margin-right:8px;padding:2px 9px;font-size:12px;font-weight:700;display:inline-block}.mock-vocab{font-size:13px}.mock-section-list{flex-direction:column;gap:6px;margin-bottom:12px;display:flex}.mock-section-row{border:1px solid var(--border-faint);border-radius:var(--radius-sm);cursor:pointer;background:var(--bg-overlay);align-items:center;gap:8px;padding:7px 10px;transition:border-color .15s,background .15s;display:flex}.mock-section-row:hover{background:var(--accent-soft)}.mock-section-row.checked{border-color:var(--accent-soft-border);background:var(--accent-soft)}.mock-section-row input{accent-color:var(--accent);cursor:pointer}.mock-section-name{color:var(--fg);font-weight:600}.mock-section-words{color:var(--fg-faint);margin-right:auto;font-size:11.5px}.mock-vocab-scroll{border:1px solid var(--border-faint);border-radius:var(--radius-sm);max-height:190px;overflow-y:auto}.mock-vocab-table{border-collapse:collapse;width:100%;font-size:12px}.mock-vocab-table th{text-align:left;background:var(--bg-inset);color:var(--fg);white-space:nowrap;border-bottom:1px solid var(--border);padding:6px 8px;position:sticky;top:0}.mock-vocab-table td{border-bottom:1px solid var(--bg-inset);color:var(--fg);vertical-align:top;padding:6px 8px}.mock-vocab-table td:first-child{color:var(--accent-text);white-space:nowrap;font-weight:700}.mock-vocab-table td:nth-child(2){white-space:nowrap;color:var(--fg-muted)}.mock-editable{border-bottom:1px dashed var(--accent);cursor:text}.mock-edit-hint{color:var(--fg-faint);margin:8px 0 0;font-size:11.5px}.mock-word-list p,.mock-dict-list p{color:var(--fg);margin:0 0 7px}.mock-word-list strong{color:var(--accent-text)}.mock-dict-blank{color:var(--accent-text);letter-spacing:1px;border-bottom:1px solid var(--border);margin-left:6px}.mock-list-more{font-size:11.5px;color:var(--fg-faint)!important}.mock-vocab-footer{border-top:1px solid var(--border-faint);gap:10px;margin-top:10px;padding-top:12px;display:flex}.mock-practical{font-size:13px}.mock-prompt-box{background:var(--bg-inset);border:1px solid var(--border-faint);border-radius:var(--radius-sm);color:var(--fg-2);margin-bottom:12px;padding:10px 14px;line-height:1.7}.mock-essay-preview{background:var(--bg-overlay);border:1px solid var(--accent-soft-border);border-left:3px solid var(--accent);border-radius:var(--radius-sm);color:var(--fg);margin:0;padding:12px 14px;font-size:13.5px;line-height:1.75}.mock-essay-salutation{margin:0}.mock-essay-body{text-indent:2em;margin:4px 0 0}.mock-essay-note{color:var(--fg-muted);margin:6px 0 0;font-size:11.5px}.mock-chip-row{border-top:1px solid var(--border-faint);margin-top:14px;padding-top:12px}.mock-chip-label{color:var(--fg);margin-right:8px;font-size:12px;font-weight:700;display:inline-block}@font-face{font-family:Hengshui;src:url(/fonts/hengshui.ttf)format("truetype");font-weight:400;font-style:normal;font-display:swap}.mock-copybook{grid-template-columns:minmax(0,5fr) minmax(0,7fr);align-items:start;gap:16px;font-size:13px;display:grid}.mc-controls{flex-direction:column;align-items:flex-start;gap:12px;display:flex}.mc-ctrl-group{flex-direction:column;gap:6px;display:flex}.mc-ctrl-title{color:var(--fg-2);font-size:12px;font-weight:700}.mc-checkbox{color:var(--fg-2);cursor:default;align-items:center;gap:6px;font-size:12.5px;display:flex}.mc-checkbox input{accent-color:var(--accent);cursor:default}.mc-ai-btn{align-self:flex-start}.mc-hint{color:var(--fg-faint);margin:2px 0 0;font-size:11.5px}.mc-paper{border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);background:#fff;padding:14px 16px 16px}.mc-paper-head{border-bottom:1px solid var(--border-faint);justify-content:space-between;align-items:baseline;margin-bottom:10px;padding-bottom:8px;display:flex}.mc-paper-title{color:var(--fg);font-size:14px;font-weight:700}.mc-paper-name{color:var(--fg-muted);font-size:11px}.mc-svg{width:100%;height:auto;display:block}.mc-loading{color:var(--fg-faint);margin:24px 0;font-size:12px}@media (width<=560px){.mock-copybook{grid-template-columns:1fr}}.print-marquee{background:var(--bg-raised);padding:64px 0 72px;overflow:hidden}.print-marquee-title{text-align:center;color:var(--fg);margin:0 0 8px;padding:0 24px;font-size:28px}.print-marquee-sub{text-align:center;color:var(--fg-muted);margin:0 0 32px;padding:0 24px;font-size:14px}.marquee-viewport{position:relative;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,#0000,#000 6% 94%,#0000);mask-image:linear-gradient(90deg,#0000,#000 6% 94%,#0000)}.marquee-track{width:max-content;animation:55s linear infinite marqueeScroll;display:flex}.marquee-viewport:hover .marquee-track{animation-play-state:paused}.marquee-track img{border:1px solid var(--border);border-radius:var(--radius-sm);width:auto;height:340px;box-shadow:var(--shadow-md);-webkit-user-select:none;user-select:none;background:#fff;margin-right:20px}@keyframes marqueeScroll{0%{transform:translate(0)}to{transform:translate(-50%)}}@media (prefers-reduced-motion:reduce){.marquee-track{animation:none}}@media (width<=768px){.print-marquee{padding:40px 0 48px}.print-marquee-title{font-size:22px}.marquee-track img{height:240px}}.home-page{background:var(--bg);min-height:100vh}.home-hero-band{background:radial-gradient(900px 600px at 28% 0,#d9775714 0%,#f5f4ee00 70%)}.home-hero-split{box-sizing:border-box;grid-template-columns:minmax(0,1fr) 1px 400px;align-items:center;gap:48px;max-width:1160px;min-height:78vh;margin:0 auto;padding:72px 24px 88px;display:grid}.hero-left{animation:.5s both heroIn}.hero-right{animation:.5s 80ms both heroIn}@keyframes heroIn{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}@media (prefers-reduced-motion:reduce){.hero-left,.hero-right{animation:none}}.hero-left h1{color:var(--fg);letter-spacing:-.01em;white-space:nowrap;margin:0 0 14px;font-size:clamp(30px,8.3vw - 48px,44px);font-weight:600;line-height:1.15}.home-subtitle{color:var(--fg-muted);margin:0 0 24px;font-size:20px}.hero-bullets{margin:0 0 28px;padding:0;list-style:none}.hero-bullets li{color:var(--fg-2);padding-left:24px;font-size:15px;line-height:2;position:relative}.hero-bullets li:before{content:"✓";color:var(--success);font-weight:700;position:absolute;left:0}.hero-cta{color:var(--accent-text);background:var(--bg-overlay);border:1.5px solid var(--accent);border-radius:var(--radius-pill);cursor:pointer;padding:10px 22px;font-size:15px;font-weight:600;transition:background .15s}.hero-cta:hover{background:var(--accent-soft)}.hero-cta.solid{color:#fff;background:var(--accent);border-color:var(--accent)}.hero-cta.solid:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.hero-divider{background:linear-gradient(180deg, transparent, var(--border-strong) 20%, var(--border-strong) 80%, transparent);align-self:stretch;width:1px}.showcase-title{text-align:center;color:var(--fg);max-width:1100px;margin:0 auto;padding:56px 24px 0;font-size:30px}.home-bottom-cta{text-align:center;background:#262624;padding:72px 24px}.home-bottom-cta h2{color:var(--bg);margin:0 0 8px;font-size:28px}.home-bottom-cta p{color:#b8b4aa;margin:0 0 24px;font-size:15px}.home-bottom-cta .hero-cta.solid{background:var(--accent);color:#fff;border-color:var(--accent)}.home-bottom-cta .hero-cta.solid:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.home-footer{text-align:center;border-top:1px solid var(--border-faint);background:var(--bg);padding:20px 0}.home-footer p{color:var(--fg-faint);margin:0;font-size:12px}.own-api-link{color:var(--fg-faint);cursor:pointer;background:0 0;border:none;font-size:12px;text-decoration:underline}.own-api-link:hover{color:var(--fg-muted)}@media (width<=960px){.home-hero-split{grid-template-columns:minmax(0,1fr) 1px 340px;gap:28px}.hero-left h1{font-size:clamp(24px,8.3vw - 40px,34px)}}@media (width<=768px){.home-hero-split{grid-template-columns:1fr;gap:32px;min-height:0;padding:40px 16px 48px}.hero-divider{display:none}.hero-left h1{font-size:clamp(20px,7vw,28px)}.home-subtitle{font-size:16px}.showcase-title{padding-top:40px;font-size:22px}.home-bottom-cta{padding:48px 16px}.home-bottom-cta h2{font-size:22px}}.hw-btn-sm{border:1px solid var(--border-strong);background:var(--bg-overlay);color:var(--fg-2);cursor:pointer;border-radius:4px;padding:4px 12px;font-size:12px;font-weight:600}.hw-btn-sm:hover:not(:disabled){background:var(--bg-inset)}.hw-btn-sm:disabled{opacity:.5;cursor:not-allowed}.hw-btn-xs{border:1px solid var(--border);background:var(--bg-overlay);color:var(--fg-muted);cursor:pointer;border-radius:3px;padding:2px 8px;font-size:11px}.hw-btn-xs:hover{background:var(--danger-soft);color:var(--danger);border-color:var(--danger-border)}.hw-label-nomargin{margin:0}.hw-input-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:16px;display:grid}.hw-input-group{flex-direction:column;gap:6px;display:flex}.hw-text-input{border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--bg-overlay);color:var(--fg);padding:8px 12px;font-family:inherit;font-size:13px}.hw-text-input:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 2px #d9775726}.hw-text-input:disabled{background:var(--bg-inset)}.hw-ocr-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:8px;display:flex}.hw-ocr-model-label{color:var(--fg-muted);font-size:12px;font-weight:600}.hw-ocr-model-select{align-items:center;gap:6px;display:flex}.hw-drop-zone{border:2px dashed var(--border-strong);border-radius:var(--radius-md);text-align:center;cursor:pointer;background:var(--bg-raised);padding:32px 24px;transition:all .2s}.hw-drop-zone:hover:not(.disabled),.hw-drop-zone.drag-over{border-color:var(--accent);background:var(--accent-soft)}.hw-drop-zone.disabled{cursor:not-allowed;opacity:.5}.hw-drop-icon{margin-bottom:8px;font-size:36px}.hw-drop-text{color:var(--fg-2);margin-bottom:4px;font-size:14px;font-weight:600}.hw-drop-hint{color:var(--fg-faint);font-size:12px}.hw-ocr-loading{color:var(--accent-text);align-items:center;gap:8px;padding:16px 0;font-size:13px;display:flex}.spinner-sm{border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;width:16px;height:16px;animation:.8s linear infinite spin}.hw-ocr-error{color:var(--danger);font-size:13px}.hw-ocr-textarea{border:1px solid var(--border);border-radius:var(--radius-sm);resize:vertical;box-sizing:border-box;background:var(--bg-overlay);width:100%;color:var(--fg);padding:8px 12px;font-family:inherit;font-size:13px;line-height:1.6}.hw-ocr-textarea:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 2px #d9775726}.hw-ocr-filename{color:var(--fg-muted);white-space:nowrap;text-overflow:ellipsis;max-width:220px;font-size:12px;overflow:hidden}.hw-handwriting-badge{border-radius:var(--radius-pill);color:var(--accent-text);background:var(--accent-soft);border:1px solid var(--accent-soft-border);cursor:help;align-items:center;gap:2px;padding:1px 8px;font-size:12px;font-weight:700;display:inline-flex}.hw-student-pills{align-items:center;gap:6px;margin:16px 0 10px;padding:2px 2px 6px;display:flex;overflow-x:auto}.hw-student-pill{border-radius:var(--radius-pill);border:1px solid var(--border);background:var(--bg-overlay);color:var(--fg-muted);cursor:pointer;white-space:nowrap;flex-shrink:0;align-items:center;gap:5px;padding:4px 12px;font-size:12px;font-weight:600;transition:all .15s;display:inline-flex}.hw-student-pill:hover:not(:disabled){border-color:var(--accent-soft-border);color:var(--fg-2)}.hw-student-pill.active{background:var(--accent-soft);border-color:var(--accent-soft-border);color:var(--accent-text)}.hw-student-pill .st-done{color:var(--success)}.hw-student-pill .st-error{color:var(--danger)}.hw-student-pill .st-busy{color:var(--accent-text)}.hw-pills-clear{flex-shrink:0;margin-left:auto}.hw-verify-panel{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-raised);overflow:hidden}.hw-verify-head{background:var(--bg-inset);border-bottom:1px solid var(--border-faint);flex-wrap:wrap;align-items:center;gap:10px;padding:10px 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.15s}.level-pill:last-child{border-right:none}.level-pill:hover:not(:disabled){background:var(--accent-soft)}.level-pill.active{background:var(--accent);color:#fff}.exam-checkbox{color:var(--fg-2);cursor:pointer;align-items:center;gap:6px;padding-bottom:8px;font-size:13px;display:flex}.exam-checkbox input[type=checkbox]{width:15px;height:15px;accent-color:var(--accent);cursor:pointer}.exam-section-head{align-items:center;gap:10px;margin-bottom:10px;display:flex}.exam-section-title{flex:1;font-size:15px}.exam-section-title .editable-display{color:var(--fg);font-size:15px;font-weight:700}.exam-controls{flex-shrink:0;gap:4px;display:flex}.exam-type-badge{color:#fff;background:var(--fg-muted);border-radius:4px;flex-shrink:0;padding:2px 6px;font-size:11px;font-weight:700}.exam-badge-section{background:var(--fg-2)}.exam-badge-passage{background:var(--tag-green-text)}.exam-badge-choice{background:var(--tag-blue-text)}.exam-badge-blank{background:var(--tag-orange-text)}.exam-badge-essay{background:var(--tag-purple-text)}.exam-badge-other{background:var(--fg-muted)}.exam-question{border:1px solid var(--border-faint);border-radius:var(--radius-sm);background:var(--bg-overlay);margin-bottom:10px;padding:10px 12px}.exam-question-head{align-items:center;gap:8px;margin-bottom:6px;display:flex}.exam-question-number{flex-shrink:0;width:70px}.exam-question-number .editable-display{color:var(--fg);font-weight:700}.exam-options{border-top:1px dashed var(--border-faint);margin-top:8px;padding-top:8px}.exam-option-row{align-items:center;gap:8px;margin-bottom:6px;display:flex}.exam-option-label{flex-shrink:0;width:60px}.exam-option-label .editable-display{color:var(--accent-text);font-weight:700}.exam-option-text{flex:1}.exam-answer-row{align-items:center;gap:8px;margin-top:8px;display:flex}.exam-answer-label{color:var(--success);flex-shrink:0;font-size:12px;font-weight:700}.exam-answer-field{flex:1}.exam-answer-field .editable-display{color:var(--success)}.exam-add-question{flex-wrap:wrap;gap:6px;margin-top:4px;display:flex}.exam-add-section{margin-bottom:24px}.editable-display{cursor:pointer;border:1px solid #0000;border-radius:4px;min-height:20px;padding:2px 4px}.editable-display:hover{background:var(--accent-soft);border-color:var(--accent-soft-border)}.editable-pre{font-family:inherit;font-size:inherit;white-space:pre-wrap;margin:0}.editable-input{width:100%;font-family:inherit;font-size:inherit;border:1.5px solid var(--accent);box-sizing:border-box;border-radius:4px;outline:none;padding:4px 8px}.editable-textarea{resize:vertical;min-height:80px}.cell-empty{color:var(--fg-faint);font-size:12px}@media (width<=1200px){.exam-section-head{flex-wrap:wrap}.exam-section-title{min-width:60%}.exam-meta-grid .exam-field{min-width:100%}}.exam-upload-row{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:8px;display:flex}.exam-upload-hint{color:var(--fg-faint);font-size:12px}.exam-manifest-report{background:var(--warning-soft);border:1px solid var(--warning-border);border-radius:var(--radius-md);color:var(--fg-2);flex-direction:column;gap:4px;margin-bottom:12px;padding:10px 14px;font-size:13px;display:flex}.exam-manifest-report b{color:var(--warning);font-weight:600}.exam-chunk-guard{color:var(--warning);font-size:12px}.vision-pages{background:var(--bg-raised);border:1px solid var(--border-color,var(--bg-inset));border-radius:var(--radius-md);margin:8px 0 4px;padding:10px 12px}.vision-head{color:var(--fg-2);justify-content:space-between;align-items:center;gap:8px;margin-bottom:8px;font-size:13px;font-weight:600;display:flex}.vision-list{flex-direction:column;gap:4px;display:flex}.vision-item{border-radius:var(--radius-sm);background:var(--bg-inset);flex-wrap:wrap;align-items:center;gap:8px;padding:4px 8px;font-size:12.5px;display:flex}.vision-label{text-overflow:ellipsis;white-space:nowrap;max-width:45%;color:var(--fg);overflow:hidden}.vision-status{color:var(--fg-muted);flex:1;min-width:60px}.vision-done .vision-status{color:var(--success)}.vision-error .vision-status{color:var(--danger)}.vision-preview{flex-basis:100%}.vision-preview summary{cursor:pointer;color:var(--fg-faint);font-size:12px}.vision-preview pre{background:var(--bg-overlay);border:1px solid var(--bg-inset);border-radius:var(--radius-sm);white-space:pre-wrap;word-break:break-word;max-height:220px;margin:6px 0 2px;padding:8px 10px;font-size:12px;line-height:1.55;overflow:auto}.vision-hint{color:var(--fg-faint);margin:8px 0 0;font-size:12px}.exam-section-card{scroll-margin-top:112px}.app{background:var(--bg);min-height:100vh}.app-header{background:var(--bg-raised);color:var(--fg);border-bottom:1px solid var(--border-faint);box-shadow:var(--shadow-sm);align-items:center;gap:16px;padding:20px 32px;display:flex}.app-header h1{letter-spacing:-.01em;white-space:nowrap;color:var(--fg);margin:0;font-size:22px;font-weight:600}.app-subtitle{color:var(--fg-muted);white-space:nowrap;text-overflow:ellipsis;flex:1;min-width:0;font-size:13px;font-weight:400;overflow:hidden}.header-right{flex-shrink:0;align-items:center;gap:14px;display:flex}.stage-switch{background:var(--bg-inset);border:1px solid var(--border);border-radius:var(--radius-pill);padding:3px;display:inline-flex}.stage-btn{color:var(--fg-muted);border-radius:var(--radius-pill);cursor:pointer;background:0 0;border:none;padding:4px 14px;font-size:12px;font-weight:600;transition:all .15s}.stage-btn:hover{color:var(--fg)}.stage-btn.active{background:var(--bg-overlay);color:var(--fg);box-shadow:var(--shadow-sm);font-weight:700}.btn-logout{color:var(--fg-muted);border:1px solid var(--border);border-radius:var(--radius-pill);cursor:pointer;background:0 0;padding:4px 14px;font-size:12px;transition:all .15s}.btn-logout:hover{background:var(--bg-inset);color:var(--fg);border-color:var(--border-strong)}.app-body{max-width:1400px;margin:0 auto;padding:20px 24px}.tab-bar{background:var(--bg-inset);border-radius:var(--radius-lg);flex-wrap:wrap;gap:2px;margin-bottom:24px;padding:3px;display:inline-flex}.tab-btn{color:var(--fg-muted);border-radius:var(--radius-pill);cursor:pointer;background:0 0;border:none;align-items:center;gap:6px;padding:7px 16px;font-size:14px;font-weight:500;transition:all .15s;display:flex}.tab-btn:hover:not(.disabled){color:var(--fg-2)}.tab-btn.active{color:var(--fg);background:var(--bg-overlay);box-shadow:var(--shadow-sm), inset 0 0 0 1px var(--border-faint);font-weight:600}.tab-btn.disabled{opacity:.5;cursor:not-allowed}.tab-icon{font-size:16px}.tab-badge{background:var(--bg-inset);color:var(--fg-faint);border-radius:var(--radius-pill);padding:1px 8px;font-size:10px;font-weight:400}.placeholder{text-align:center;color:var(--fg-muted);padding:80px 20px}.placeholder-icon{margin-bottom:16px;font-size:64px;display:block}.placeholder h3{color:var(--fg-2);margin:0 0 8px;font-size:20px}.placeholder p{margin:0;font-size:14px}@media (width<=768px){.app-header{flex-direction:column;align-items:flex-start;gap:8px;padding:16px 20px}.app-header h1{font-size:18px}.app-subtitle{white-space:normal}.header-right{flex-wrap:wrap;gap:10px}.app-body{padding:12px 14px}.tab-btn{padding:8px 12px;font-size:13px}.tab-badge{display:none}}