:root{--module-columns: minmax(320px, 1.04fr) minmax(360px, 1.18fr) minmax(320px, 1fr);--module-row-gap: clamp(16px, 2vh, 24px);font-family:Avenir Next,PingFang SC,Hiragino Sans GB,sans-serif;color:#0f172a;background:radial-gradient(circle at top left,rgba(141,197,255,.24),transparent 24%),radial-gradient(circle at bottom right,rgba(214,229,255,.38),transparent 30%),linear-gradient(180deg,#f4f7fb,#edf2f8);line-height:1.5;font-weight:400}:root[data-theme=teams]{--role-primary: #5b5fc7;--role-bg: #f4f5fb;--role-surface: #ffffff;--role-soft: #f8f8ff;--role-line: #dfe3f2;--role-text: #1f2937;--role-muted: #64748b}:root[data-theme=academic]{--role-primary: #1d4ed8;--role-bg: #f3f6fb;--role-surface: #ffffff;--role-soft: #f7faff;--role-line: #d7e0ee;--role-text: #172033;--role-muted: #64748b}:root[data-theme=focus]{--role-primary: #047857;--role-bg: #f2f7f4;--role-surface: #ffffff;--role-soft: #f6fbf8;--role-line: #d7e8df;--role-text: #163126;--role-muted: #5d7169}:root[data-theme=pro]{--role-primary: #8b5cf6;--role-bg: #101217;--role-surface: #171a22;--role-soft: #202431;--role-line: #2c3140;--role-text: #e5e7eb;--role-muted: #a5adbd;color-scheme:dark}.login-shell{min-height:100vh}.role-shell{height:100vh;display:grid;grid-template-columns:252px minmax(0,1fr);gap:16px;padding:16px;background:var(--role-bg);color:var(--role-text)}.role-sidebar,.role-topbar,.role-panel{background:var(--role-surface);border:1px solid var(--role-line);border-radius:18px}.role-sidebar{min-height:0;display:grid;grid-template-rows:auto 1fr auto auto;overflow:visible}.role-sidebar footer{padding:14px 16px;border-top:1px solid var(--role-line);color:var(--role-muted);font-size:12px}.role-nav{padding:14px;display:grid;align-content:start;gap:8px}.role-nav button{min-height:42px;border:0;border-radius:11px;padding:0 13px;text-align:left;background:var(--role-soft);color:var(--role-text);font-weight:700}.role-nav 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var(--role-line);border-radius:18px;padding:18px;display:grid;gap:12px}.modal-panel label{display:grid;gap:6px;color:var(--role-muted);font-weight:700}.modal-panel input{min-height:40px;border:1px solid var(--role-line);border-radius:10px;padding:0 12px;background:var(--role-soft);color:var(--role-text)}.theme-grid{display:grid;gap:10px}.theme-grid button{border:1px solid var(--role-line);border-radius:14px;padding:12px;display:grid;grid-template-columns:34px 1fr;gap:4px 10px;align-items:center;text-align:left;background:var(--role-soft);color:var(--role-text)}.theme-grid button.active{border-color:var(--role-primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--role-primary) 18%,transparent)}.theme-swatch{grid-row:span 2;width:34px;height:34px;border-radius:10px}.notification-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:46px;padding:7px 12px;border-bottom:1px solid var(--role-line);background:color-mix(in srgb,var(--role-soft) 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var(--role-line);border-radius:16px;background:var(--role-surface);color:var(--role-text);box-shadow:0 20px 46px #0f172a29;overflow:hidden}.queue-toggle{width:100%;height:48px;border:0;background:var(--role-surface);color:var(--role-text);padding:0 14px;display:flex;align-items:center;justify-content:space-between;gap:12px}.queue-toggle span{color:var(--role-muted);font-size:13px}.queue-list{--queue-item-height: 92px;display:grid;gap:8px;padding:0 12px 12px;max-height:calc(var(--queue-item-height) * 3);overflow-y:auto}.queue-progress{height:6px;overflow:hidden;border-radius:999px;background:#e5e7eb}.queue-progress i,.queue-progress b{display:block;height:100%;border-radius:inherit;background:#2563eb}.queue-item small{color:#b91c1c;line-height:1.35}.teacher-video-frame,.teacher-board-roi{display:grid;gap:10px}.teacher-video-frame-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.teacher-frame-preview,.teacher-frame-empty{min-height:180px;border:1px solid var(--role-line);border-radius:8px;overflow:hidden;background:#f8fafc}.teacher-frame-preview img{display:block;width:100%;aspect-ratio:16 / 9;object-fit:contain}.teacher-frame-empty{display:grid;place-items:center;color:var(--role-muted)}.campus-dashboard,.teacher-dashboard,.admin-workspace{min-width:0;width:100%;display:grid;gap:14px}.report-snap-section{min-width:0;scroll-snap-align:start;scroll-snap-stop:always}.report-snap-reviews{min-height:calc(100vh - 104px)}.metric-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.metric-card{min-width:0;background:var(--role-surface);border:1px solid var(--role-line);border-radius:16px;padding:16px}.metric-card span{color:var(--role-muted);font-size:13px}.metric-card strong{display:block;margin-top:8px;font-size:32px;line-height:1}.workspace-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(340px,.92fr);gap:14px}.workspace-grid .wide{grid-column:1 / -1}.research-video-panel 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#2563eb2e;font-size:13px;line-height:1.45;font-weight:800;text-align:left;cursor:pointer;z-index:20}.teacher-toast-bubble:before{content:"";position:absolute;left:14px;top:14px;width:14px;height:14px;border-radius:999px;background:var(--toast-dot);box-shadow:0 0 0 5px var(--toast-halo)}.teacher-toast-bubble:after{content:"";position:absolute;right:34px;bottom:-8px;width:16px;height:16px;transform:rotate(45deg);border-right:1px solid var(--toast-border);border-bottom:1px solid var(--toast-border);background:#fff}.teacher-toast-bubble strong{display:block;margin-bottom:2px;font-size:14px}.teacher-toast-bubble small{color:var(--role-muted);font-weight:700}.teacher-toast-bubble.info{--toast-dot: #2563eb;--toast-halo: #dbeafe;--toast-border: #bfdbfe;--toast-ink: #1e3a8a}.teacher-toast-bubble.running{--toast-dot: #7c3aed;--toast-halo: #ede9fe;--toast-border: #ddd6fe;--toast-ink: #4c1d95}.teacher-toast-bubble.success{--toast-dot: #22c55e;--toast-halo: #dcfce7;--toast-border: 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