/* 天门 306 核心样式表 - 包含主题变量、基础布局、学科标色、答题卡与各类学习弹窗样式 */
        :root {
            /* 默认暗黑模式变量 (现代化通透黑曜石系统) */
            --bg-page: #090a10;
            --bg-panel: #10131e;
            --bg-panel-hover: #161a29;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(59, 130, 246, 0.4);
            --text-main: #f8fafc;
            --text-muted: #94a3b8;
            --text-dark: #64748b;
            
            --primary: #3b82f6;
            --primary-light: #60a5fa;
            --primary-glow: rgba(59, 130, 246, 0.22);
            --grid-color: rgba(255, 255, 255, 0.018);

            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 9999px;
            
            /* 专业学科标色 */
            --color-syl: #ef4444; /* 生理 */
            --color-bll: #f97316; /* 病理 */
            --color-nk:  #eab308; /* 内科 */
            --color-wk:  #10b981; /* 外科 */
            --color-sh:  #8b5cf6; /* 生化 */
        }

        /* 浅色模式变量 */
        body.light-theme {
            --bg-page: #f1f5f9;
            --bg-panel: #ffffff;
            --bg-panel-hover: #f8fafc;
            --border-color: #e2e8f0;
            --border-hover: #cbd5e1;
            --text-main: #0f172a;
            --text-muted: #475569;
            --text-dark: #94a3b8;
            
            --primary-glow: rgba(59, 130, 246, 0.08);
            --grid-color: rgba(15, 23, 42, 0.02);
        }

        body[data-skin="medical"] {
            --primary: #0ea5e9;
            --primary-light: #38bdf8;
            --primary-glow: rgba(14, 165, 233, 0.24);
            --color-syl: #0ea5e9;
            --color-bll: #14b8a6;
            --color-nk: #6366f1;
            --color-wk: #22c55e;
            --color-sh: #a855f7;
        }
        body.dark-theme[data-skin="medical"] {
            --bg-page: #07111f;
            --bg-panel: #0e1d31;
            --bg-panel-hover: #132a46;
            --border-color: #1e3a5f;
            --border-hover: #2f6ea5;
            --text-main: #eaf6ff;
            --text-muted: #93b6d6;
            --grid-color: rgba(56, 189, 248, 0.035);
        }
        body.light-theme[data-skin="medical"] {
            --bg-page: #eaf6ff;
            --bg-panel: #ffffff;
            --bg-panel-hover: #f0f9ff;
            --border-color: #bae6fd;
            --border-hover: #7dd3fc;
            --text-main: #082f49;
            --text-muted: #38677f;
        }

        body[data-skin="forest"] {
            --primary: #16a34a;
            --primary-light: #4ade80;
            --primary-glow: rgba(34, 197, 94, 0.2);
            --color-syl: #84cc16;
            --color-bll: #22c55e;
            --color-nk: #14b8a6;
            --color-wk: #15803d;
            --color-sh: #65a30d;
        }
        body.dark-theme[data-skin="forest"] {
            --bg-page: #07130d;
            --bg-panel: #102018;
            --bg-panel-hover: #183026;
            --border-color: #244333;
            --border-hover: #3b6b50;
            --text-main: #eefbf2;
            --text-muted: #9bc4a8;
            --grid-color: rgba(74, 222, 128, 0.03);
        }
        body.light-theme[data-skin="forest"] {
            --bg-page: #effaf1;
            --bg-panel: #ffffff;
            --bg-panel-hover: #f5fff6;
            --border-color: #bbf7d0;
            --border-hover: #86efac;
            --text-main: #12351f;
            --text-muted: #4f765c;
        }

        body[data-skin="paper"] {
            --primary: #b45309;
            --primary-light: #f59e0b;
            --primary-glow: rgba(245, 158, 11, 0.16);
            --color-syl: #dc2626;
            --color-bll: #d97706;
            --color-nk: #ca8a04;
            --color-wk: #16a34a;
            --color-sh: #7c3aed;
        }
        body.dark-theme[data-skin="paper"] {
            --bg-page: #15110b;
            --bg-panel: #201a12;
            --bg-panel-hover: #2d2418;
            --border-color: #4a3720;
            --border-hover: #7c5524;
            --text-main: #fff8e8;
            --text-muted: #ccb994;
            --grid-color: rgba(245, 158, 11, 0.025);
        }
        body.light-theme[data-skin="paper"] {
            --bg-page: #f7f1df;
            --bg-panel: #fffaf0;
            --bg-panel-hover: #fff4d6;
            --border-color: #e7d9b5;
            --border-hover: #d6b979;
            --text-main: #352514;
            --text-muted: #776341;
        }

        body[data-skin="orange-cat"] {
            --primary: #f97316;
            --primary-light: #fb923c;
            --primary-glow: rgba(249, 115, 22, 0.22);
            --color-syl: #f97316;
            --color-bll: #ef4444;
            --color-nk: #eab308;
            --color-wk: #22c55e;
            --color-sh: #a855f7;
        }
        body.dark-theme[data-skin="orange-cat"] {
            --bg-page: #170d08;
            --bg-panel: #24140d;
            --bg-panel-hover: #361d10;
            --border-color: #57301b;
            --border-hover: #9a4d1a;
            --text-main: #fff3e8;
            --text-muted: #d7a77f;
            --grid-color: rgba(251, 146, 60, 0.035);
        }
        body.light-theme[data-skin="orange-cat"] {
            --bg-page: #fff1df;
            --bg-panel: #fffaf5;
            --bg-panel-hover: #ffe8cc;
            --border-color: #fed7aa;
            --border-hover: #fdba74;
            --text-main: #431407;
            --text-muted: #8a4b25;
        }

        body[data-skin="cyber"] {
            --primary: #8b5cf6;
            --primary-light: #22d3ee;
            --primary-glow: rgba(34, 211, 238, 0.18);
            --color-syl: #f43f5e;
            --color-bll: #fb7185;
            --color-nk: #22d3ee;
            --color-wk: #34d399;
            --color-sh: #a78bfa;
        }
        body.dark-theme[data-skin="cyber"] {
            --bg-page: #080713;
            --bg-panel: #111025;
            --bg-panel-hover: #1a1838;
            --border-color: #2c2754;
            --border-hover: #5146a3;
            --text-main: #f4f1ff;
            --text-muted: #aba4d8;
            --grid-color: rgba(34, 211, 238, 0.035);
        }
        body.light-theme[data-skin="cyber"] {
            --bg-page: #f2f4ff;
            --bg-panel: #ffffff;
            --bg-panel-hover: #eef2ff;
            --border-color: #c7d2fe;
            --border-hover: #a5b4fc;
            --text-main: #20134d;
            --text-muted: #5f5694;
        }

        /* 现代极简 Pro 皮肤 (去 AI 感，高级石墨灰与沉稳冷钢蓝，纯净磨砂质感) */
        body[data-skin="modern-pro"] {
            --primary: #3b82f6;
            --primary-light: #60a5fa;
            --primary-glow: rgba(59, 130, 246, 0.16);
            --color-syl: #38bdf8;
            --color-bll: #fb923c;
            --color-nk: #fbbf24;
            --color-wk: #34d399;
            --color-sh: #a78bfa;
        }
        body.dark-theme[data-skin="modern-pro"] {
            --bg-page: #090a0f;
            --bg-panel: #11131a;
            --bg-panel-hover: #181b24;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 255, 255, 0.18);
            --text-main: #f8fafc;
            --text-muted: #8b9bb4;
            --grid-color: transparent;
        }
        body.light-theme[data-skin="modern-pro"] {
            --bg-page: #f6f8fa;
            --bg-panel: #ffffff;
            --bg-panel-hover: #f1f5f9;
            --border-color: #e2e8f0;
            --border-hover: #cbd5e1;
            --text-main: #0f172a;
            --text-muted: #64748b;
            --grid-color: transparent;
        }

        /* 1.  Apple Pro 灵动 (毛玻璃、微发光渐变、极简纯净排版) */
        body[data-skin="apple-glass"] {
            --primary: #0071e3;
            --primary-light: #47a0ff;
            --primary-glow: rgba(0, 113, 227, 0.22);
            --color-syl: #2997ff;
            --color-bll: #ff6482;
            --color-nk: #ff9f0a;
            --color-wk: #30d158;
            --color-sh: #bf5af2;
        }
        body.dark-theme[data-skin="apple-glass"] {
            --bg-page: #000000;
            --bg-panel: rgba(28, 28, 30, 0.75);
            --bg-panel-hover: rgba(44, 44, 46, 0.88);
            --border-color: rgba(255, 255, 255, 0.14);
            --border-hover: rgba(255, 255, 255, 0.3);
            --text-main: #f5f5f7;
            --text-muted: #98989f;
            --grid-color: transparent;
        }
        body.light-theme[data-skin="apple-glass"] {
            --bg-page: #f5f5f7;
            --bg-panel: rgba(255, 255, 255, 0.82);
            --bg-panel-hover: #ffffff;
            --border-color: rgba(0, 0, 0, 0.08);
            --border-hover: rgba(0, 0, 0, 0.18);
            --text-main: #1d1d1f;
            --text-muted: #6e6e73;
            --grid-color: transparent;
        }
        body[data-skin="apple-glass"] .workspace-panel,
        body[data-skin="apple-glass"] .mobile-tabs {
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-radius: 16px;
        }

        /* 2.  Linear 极客暗黑 (深空石墨黑、等宽科技感、冷钢蓝高光) */
        body[data-skin="linear-dark"] {
            --primary: #5e6ad2;
            --primary-light: #828fff;
            --primary-glow: rgba(94, 106, 210, 0.28);
            --color-syl: #4ea8de;
            --color-bll: #f77f00;
            --color-nk: #fcbf49;
            --color-wk: #2a9d8f;
            --color-sh: #9d4edd;
        }
        body.dark-theme[data-skin="linear-dark"] {
            --bg-page: #08090d;
            --bg-panel: #0f1015;
            --bg-panel-hover: #151720;
            --border-color: #1e2029;
            --border-hover: #323545;
            --text-main: #f3f4f6;
            --text-muted: #8b8f9e;
            --grid-color: rgba(255, 255, 255, 0.015);
        }
        body.light-theme[data-skin="linear-dark"] {
            --bg-page: #f8f9fa;
            --bg-panel: #ffffff;
            --bg-panel-hover: #f1f3f5;
            --border-color: #e9ecef;
            --border-hover: #ced4da;
            --text-main: #212529;
            --text-muted: #6c757d;
            --grid-color: transparent;
        }

        /* 3.  纸质典藏文献 (天然米白护眼纸感、双线微边框、典雅阅读) */
        body[data-skin="editorial-paper"] {
            --primary: #8b4513;
            --primary-light: #b86b35;
            --primary-glow: rgba(139, 69, 19, 0.16);
            --color-syl: #a0522d;
            --color-bll: #c0392b;
            --color-nk: #d35400;
            --color-wk: #27ae60;
            --color-sh: #8e44ad;
        }
        body.dark-theme[data-skin="editorial-paper"] {
            --bg-page: #141716;
            --bg-panel: #1b201d;
            --bg-panel-hover: #242b27;
            --border-color: #333d37;
            --border-hover: #4a5950;
            --text-main: #f0ede6;
            --text-muted: #9ba8a0;
            --grid-color: transparent;
        }
        body.light-theme[data-skin="editorial-paper"] {
            --bg-page: #faf6ee;
            --bg-panel: #ffffff;
            --bg-panel-hover: #fbf8f2;
            --border-color: #e6decb;
            --border-hover: #cfc1a5;
            --text-main: #2c2523;
            --text-muted: #736762;
            --grid-color: transparent;
        }

        /* 4.  京都抹茶雅致 (深邃青苔墨绿、淡雅竹青与温润静心) */
        body[data-skin="matcha"] {
            --primary: #2e7d32;
            --primary-light: #4caf50;
            --primary-glow: rgba(46, 125, 50, 0.22);
            --color-syl: #43a047;
            --color-bll: #e67e22;
            --color-nk: #f1c40f;
            --color-wk: #27ae60;
            --color-sh: #8e44ad;
        }
        body.dark-theme[data-skin="matcha"] {
            --bg-page: #0c1411;
            --bg-panel: #121e19;
            --bg-panel-hover: #192a23;
            --border-color: #21392e;
            --border-hover: #325847;
            --text-main: #edf7f2;
            --text-muted: #8eae9e;
            --grid-color: transparent;
        }
        body.light-theme[data-skin="matcha"] {
            --bg-page: #f4f8f5;
            --bg-panel: #ffffff;
            --bg-panel-hover: #edf5f0;
            --border-color: #c8ded2;
            --border-hover: #a3c7b3;
            --text-main: #12241b;
            --text-muted: #4e6b5c;
            --grid-color: transparent;
        }

        /* 5.  落日莫兰迪 (高级暖灰粉、奶霜白与肉桂暖棕、温柔静谧) */
        body[data-skin="morandi"] {
            --primary: #c27ba0;
            --primary-light: #d59bb7;
            --primary-glow: rgba(194, 123, 160, 0.2);
            --color-syl: #b48ead;
            --color-bll: #d08770;
            --color-nk: #ebcb8b;
            --color-wk: #a3be8c;
            --color-sh: #b48ead;
        }
        body.dark-theme[data-skin="morandi"] {
            --bg-page: #151114;
            --bg-panel: #1e191d;
            --bg-panel-hover: #292227;
            --border-color: #382c35;
            --border-hover: #503d4c;
            --text-main: #f7f1f5;
            --text-muted: #ad9ba9;
            --grid-color: transparent;
        }
        body.light-theme[data-skin="morandi"] {
            --bg-page: #faf4f7;
            --bg-panel: #ffffff;
            --bg-panel-hover: #f6edf2;
            --border-color: #e8d5e0;
            --border-hover: #d9bccd;
            --text-main: #2b1f28;
            --text-muted: #73596c;
            --grid-color: transparent;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            height: 100%;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            background-color: var(--bg-page);
            color: var(--text-main);
            height: 100vh;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            padding: 16px;
            transition: background-color 0.3s, color 0.3s;
        }

        /* 顶部导航 (现代化旗舰质感) */
        body > header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 18px 14px 18px;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 14px;
            flex-shrink: 0;
            background: transparent;
        }

        .header-title-area h1 {
            font-size: 1.25rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-main);
        }

        .header-title-area p {
            font-size: 0.68rem;
            color: var(--text-muted);
            margin-top: 3px;
            display: inline-flex;
            align-items: center;
            padding: 1px 8px;
            border-radius: 9999px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.05);
            letter-spacing: 0.02em;
        }
        body.light-theme .header-title-area p {
            background: rgba(0, 0, 0, 0.04);
            border: 1px solid rgba(0, 0, 0, 0.06);
        }

        .header-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        /* 顶部时光机控制条 */
        .time-machine-bar {
            background: linear-gradient(90deg, rgba(59, 130, 246, 0.08) 0%, rgba(139, 92, 246, 0.08) 100%);
            border: 1px solid rgba(59, 130, 246, 0.25);
            border-radius: 10px;
            padding: 7px 14px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 12px;
            flex-shrink: 0;
            font-size: 0.78rem;
        }
        body.light-theme .time-machine-bar {
            background: #eff6ff;
            border-color: #bfdbfe;
        }

        .time-machine-display {
            font-weight: 700;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .time-machine-date {
            font-family: 'JetBrains Mono', monospace;
            background: rgba(0, 0, 0, 0.3);
            padding: 2px 8px;
            border-radius: 6px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: #60a5fa;
            font-size: 0.82rem;
            font-weight: 700;
        }
        body.light-theme .time-machine-date {
            background: #ffffff;
            color: #2563eb;
            border-color: #cbd5e1;
        }

        .time-machine-controls {
            display: flex;
            gap: 6px;
        }

        .time-btn {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-main);
            padding: 3px 10px;
            border-radius: 6px;
            font-size: 0.72rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .time-btn:hover {
            border-color: var(--border-hover);
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-1px);
        }
        .time-btn:active {
            transform: scale(0.96);
        }

        /* 顶部各控制按钮 (现代化 Pill 胶囊体系) */
        .theme-switch-btn, .cloud-sync-btn {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-main);
            padding: 5px 12px;
            border-radius: 9999px;
            font-size: 0.74rem;
            font-weight: 600;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
            transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
            user-select: none;
        }
        .theme-switch-btn:hover, .cloud-sync-btn:hover {
            border-color: rgba(255, 255, 255, 0.22);
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-1px);
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
        }
        .theme-switch-btn:active, .cloud-sync-btn:active {
            transform: scale(0.96);
        }
        body.light-theme .theme-switch-btn,
        body.light-theme .cloud-sync-btn {
            background: #ffffff;
            border-color: #e2e8f0;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
        }
        body.light-theme .theme-switch-btn:hover,
        body.light-theme .cloud-sync-btn:hover {
            border-color: #cbd5e1;
            background: #f8fafc;
        }
        body.light-theme .theme-switch-btn.wrong-mgmt-btn {
            background: rgba(16, 185, 129, 0.08) !important;
            border-color: rgba(16, 185, 129, 0.25) !important;
            color: #059669 !important;
        }
        body.light-theme .theme-switch-btn.ai-nav-btn {
            background: rgba(59, 130, 246, 0.08) !important;
            border-color: rgba(59, 130, 246, 0.25) !important;
            color: #2563eb !important;
        }
        body.light-theme .theme-switch-btn.logout-btn {
            background: rgba(239, 68, 68, 0.06) !important;
            border-color: rgba(239, 68, 68, 0.2) !important;
            color: #dc2626 !important;
        }

        .skin-picker {
            position: relative;
        }
        .skin-menu {
            position: absolute;
            top: calc(100% + 8px);
            right: 0;
            width: 250px;
            display: none;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 8px;
            padding: 10px;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            background: var(--bg-panel);
            box-shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
            z-index: 10020;
        }
        .skin-menu.show {
            display: grid;
        }
        .skin-option {
            border: 1px solid var(--border-color);
            background: var(--bg-panel-hover);
            color: var(--text-main);
            border-radius: 10px;
            padding: 9px;
            cursor: pointer;
            text-align: left;
            min-height: 58px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 7px;
        }
        .skin-option.active {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 2px var(--primary-glow);
        }
        .skin-option-name {
            font-size: 0.74rem;
            font-weight: 800;
        }
        .skin-swatches {
            display: flex;
            gap: 4px;
        }
        .skin-swatches i {
            width: 14px;
            height: 14px;
            border-radius: 50%;
            border: 1px solid rgba(255,255,255,0.36);
        }

        /* 核心布局三栏 */
        .app-layout {
            display: grid;
            grid-template-columns: 310px 1fr 390px;
            gap: 16px;
            flex: 1;
            min-height: 0;
            transition: grid-template-columns 0.3s ease;
        }

        /* 专注模式 */
        .app-layout.focus-mode {
            grid-template-columns: 1fr;
        }
        .app-layout.focus-mode .subject-scroller,
        .app-layout.focus-mode .calendar-panel {
            display: none !important;
        }
        body.focus-mode header,
        body.focus-mode .time-machine-bar {
            display: none !important;
        }
        body.focus-mode .pending-workspace .panel-heading,
        body.focus-mode .pending-workspace .today-summary-bar {
            display: none !important;
        }
        body.focus-mode .pending-workspace .pending-list-scroll {
            flex: 1 1 auto;
            min-height: 0;
            padding-bottom: 112px !important;
            scroll-padding-bottom: 128px;
        }
        body.focus-mode .mobile-exit-focus-btn,
        body.focus-mode .mobile-focus-top-btn {
            display: flex;
            position: fixed;
            right: 24px;
            z-index: 10000;
            background: rgba(30, 41, 59, 0.88);
            color: #f8fafc;
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 10px 18px;
            border-radius: 9999px;
            font-size: 0.82rem;
            font-weight: 600;
            align-items: center;
            gap: 6px;
            backdrop-filter: blur(8px);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
            cursor: pointer;
            transition: transform 0.2s, background-color 0.2s;
        }
        body.focus-mode .mobile-exit-focus-btn {
            bottom: 24px;
        }
        body.focus-mode .mobile-focus-top-btn {
            bottom: 76px;
            width: 42px;
            height: 42px;
            padding: 0;
            justify-content: center;
            font-size: 1.05rem;
        }
        body.focus-mode .mobile-exit-focus-btn:active,
        body.focus-mode .mobile-focus-top-btn:active {
            transform: scale(0.95);
            background: rgba(15, 23, 42, 0.95);
        }
        body.light-theme.focus-mode .mobile-exit-focus-btn,
        body.light-theme.focus-mode .mobile-focus-top-btn {
            background: rgba(255, 255, 255, 0.92);
            color: #0f172a;
            border: 1px solid rgba(0, 0, 0, 0.1);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }

        .focus-mode-btn {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            color: var(--text-main);
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 0.72rem;
            font-weight: 500;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all 0.3s;
        }
        .focus-mode-btn:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--border-hover);
        }
        body.light-theme .focus-mode-btn {
            background: rgba(0, 0, 0, 0.02);
        }
        body.light-theme .focus-mode-btn:hover {
            background: rgba(0, 0, 0, 0.06);
        }
        .focus-mode-btn.active {
            background: rgba(59, 130, 246, 0.15);
            border-color: rgba(59, 130, 246, 0.4);
            color: var(--primary-light);
        }
        .panel-heading-actions {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 8px;
            flex-wrap: wrap;
        }

        /* 现代化工作面板体系 */
        .workspace-panel {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: 14px;
            display: flex;
            flex-direction: column;
            padding: 16px;
            min-height: 0;
            box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.25);
            transition: background-color 0.25s ease, border-color 0.25s ease;
            contain: layout style;
        }
        body.light-theme .workspace-panel {
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }

        .panel-heading {
            font-size: 0.84rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.02em;
            margin-bottom: 12px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-shrink: 0;
        }
        body.light-theme .panel-heading {
            border-bottom-color: #f1f5f9;
        }

        /* ==================== 左侧：科目完成度与章节目录 ==================== */
        .subject-scroller {
            overflow-y: auto;
            scrollbar-width: thin;
        }
        .subject-scroller::-webkit-scrollbar {
            width: 4px;
        }
        .subject-scroller::-webkit-scrollbar-thumb {
            background: rgba(255,255,255,0.05);
            border-radius: 2px;
        }

        .subject-stack {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .subject-group {
            border: 1px solid var(--border-color);
            border-radius: 10px;
            overflow: hidden;
            transition: all 0.2s;
        }

        .subject-header-row {
            background: rgba(255, 255, 255, 0.01);
            padding: 12px;
            display: flex;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            transition: all 0.2s;
            user-select: none;
        }
        body.light-theme .subject-header-row {
            background: #f8fafc;
        }
        .subject-header-row:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        body.light-theme .subject-header-row:hover {
            background: #f1f5f9;
        }

        /* 现代化多形态科目徽标 (统一高级清爽配色，彻底杜绝突兀黑块与刺眼荧光) */
        .subject-badge-squircle {
            width: 44px;
            height: 38px;
            border-radius: 9px;
            border: 1px solid var(--border-color);
            background: color-mix(in srgb, var(--primary) 8%, var(--bg-panel));
            color: var(--text-main);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            flex-shrink: 0;
            transition: all 0.25s ease;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }
        body.light-theme .subject-badge-squircle {
            background: #f1f5f9;
            border-color: #e2e8f0;
            color: #1e293b;
        }

        .subject-badge-squircle .badge-label {
            display: flex;
            align-items: center;
            justify-content: center;
            white-space: nowrap;
        }

        /*  Linear 极客：深色深邃石墨微框 / 浅色纯净冷灰微框 */
        body.dark-theme[data-skin="linear-dark"] .subject-badge-squircle {
            border-radius: 6px;
            background: #141722;
            border-color: #262b3d;
            color: #e2e8f0;
        }
        body.light-theme[data-skin="linear-dark"] .subject-badge-squircle {
            border-radius: 6px;
            background: #f1f3f5;
            border-color: #dee2e6;
            color: #212529;
        }

        /*  纸质典藏：古典双线书本印章 */
        body.dark-theme[data-skin="editorial-paper"] .subject-badge-squircle {
            border-radius: 4px;
            background: #1e2420;
            border: 1.5px solid #38453d;
            color: #f0ede6;
        }
        body.light-theme[data-skin="editorial-paper"] .subject-badge-squircle {
            border-radius: 4px;
            background: #fff;
            border: 1.5px solid #d4c8b0;
            color: #2c2523;
        }

        /*  京都抹茶：雅致茶砖微印 */
        body.dark-theme[data-skin="matcha"] .subject-badge-squircle {
            border-radius: 7px;
            background: #16241e;
            border-color: #284235;
            color: #edf7f2;
        }
        body.light-theme[data-skin="matcha"] .subject-badge-squircle {
            border-radius: 7px;
            background: #edf5f0;
            border-color: #c0dbc9;
            color: #163324;
        }

        /*  落日莫兰迪：温润柔雾微印 */
        body.dark-theme[data-skin="morandi"] .subject-badge-squircle {
            border-radius: 8px;
            background: #231c21;
            border-color: #42323f;
            color: #f7f1f5;
        }
        body.light-theme[data-skin="morandi"] .subject-badge-squircle {
            border-radius: 8px;
            background: #f6edf2;
            border-color: #e3ccda;
            color: #3b2836;
        }

        /* 现代化科目信息与胶囊进度槽 */
        .subject-meta-info {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
            min-width: 0;
        }

        .subject-lbl-name {
            font-size: 0.84rem;
            font-weight: 700;
            color: var(--text-main);
        }

        .subject-reset-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 1px 7px;
            font-size: 0.68rem;
            font-weight: 600;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            border-radius: 4px;
            cursor: pointer;
            transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            opacity: 0.8;
            line-height: 1.3;
            letter-spacing: 0.02em;
            user-select: none;
        }
        .subject-reset-btn:hover {
            opacity: 1;
            color: #ef4444;
            border-color: rgba(239, 68, 68, 0.45);
            background: rgba(239, 68, 68, 0.1);
            transform: translateY(-1px);
        }
        .subject-reset-btn:active {
            transform: translateY(0);
        }
        body.light-theme .subject-reset-btn {
            border-color: #cbd5e1;
            background: #ffffff;
        }
        body.light-theme .subject-reset-btn:hover {
            border-color: #f87171;
            background: #fef2f2;
        }

        .subject-progress-track {
            width: 100%;
            height: 4px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.06);
            overflow: hidden;
        }
        body.light-theme .subject-progress-track {
            background: #e2e8f0;
        }

        .subject-progress-fill {
            height: 100%;
            border-radius: 999px;
            background: var(--primary);
            transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* 兼容保留旧圆圈 */
        .circle-ring-box {
            width: 48px;
            height: 48px;
            position: relative;
            flex-shrink: 0;
            display: none;
        }

        .accordion-arrow {
            font-size: 0.7rem;
            color: var(--text-dark);
            transition: transform 0.2s;
        }
        .subject-group.expanded .accordion-arrow {
            transform: rotate(90deg);
        }

        /* 章节展开面板 */
        .chapters-list-panel {
            display: none;
            border-top: 1px solid var(--border-color);
            padding: 8px;
            background: rgba(0,0,0,0.15);
            flex-direction: column;
            gap: 6px;
        }
        body.light-theme .chapters-list-panel {
            background: rgba(241, 245, 249, 0.5);
        }
        .subject-group.expanded .chapters-list-panel {
            display: flex;
        }

        .chapter-item {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.04);
            border-radius: 8px;
            padding: 8px 12px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            margin-bottom: 3px;
            transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
        }
        body.light-theme .chapter-item {
            background: #ffffff;
            border-color: #e2e8f0;
        }
        .chapter-item:hover {
            border-color: rgba(255, 255, 255, 0.12);
            background: rgba(255, 255, 255, 0.05);
            transform: translateX(2px);
        }
        body.light-theme .chapter-item:hover {
            background: #f8fafc;
            border-color: #cbd5e1;
        }

        .chapter-name-text {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.35;
        }

        .chapter-actions {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .stage-badge {
            font-size: 0.65rem;
            padding: 2px 7px;
            border-radius: 9999px;
            font-weight: 700;
            font-family: 'JetBrains Mono', monospace;
        }
        .stage-0 { background: rgba(255, 255, 255, 0.05); color: var(--text-dark); border: 1px solid rgba(255, 255, 255, 0.06); }
        .stage-active { background: rgba(59, 130, 246, 0.12); color: #60a5fa; border: 1px solid rgba(59, 130, 246, 0.28); }
        .stage-done { background: rgba(16, 185, 129, 0.12); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.28); }

        .btn-reset-chapter {
            background: none;
            border: none;
            color: var(--text-dark);
            cursor: pointer;
            font-size: 0.75rem;
            padding: 3px;
            border-radius: 4px;
            transition: all 0.18s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .btn-reset-chapter:hover {
            color: #ef4444;
            background: rgba(239, 68, 68, 0.1);
        }

        .btn-quick-complete {
            background: rgba(59, 130, 246, 0.12);
            border: 1px solid rgba(59, 130, 246, 0.25);
            color: #60a5fa;
            font-size: 0.68rem;
            padding: 3px 9px;
            border-radius: 9999px;
            cursor: pointer;
            font-weight: 700;
            transition: all 0.18s ease;
        }
        .btn-quick-complete:hover {
            background: #2563eb;
            border-color: #3b82f6;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
        }


        /* ==================== 中间：今日待复习区 (自适应算法) ==================== */
        .pending-workspace {
            min-height: 0;
            gap: 10px;
        }

        /* ===== Apple 风格：温故分类分段选择器 (Segmented Control) ===== */
        .middle-review-tab-bar {
            display: flex;
            gap: 6px;
            padding: 4px;
            background: rgba(0, 0, 0, 0.32);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 12px;
            flex-shrink: 0;
            user-select: none;
            margin-bottom: 2px;
        }
        body.light-theme .middle-review-tab-bar {
            background: #f1f5f9;
            border-color: #e2e8f0;
        }
        .middle-review-tab-btn {
            flex: 1;
            padding: 7px 12px;
            border-radius: 9px;
            background: transparent;
            border: 1px solid transparent;
            color: var(--text-muted);
            font-size: 0.8rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .middle-review-tab-btn:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.04);
        }
        .middle-review-tab-btn.active {
            background: #2563eb;
            color: #ffffff;
            font-weight: 700;
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.35);
        }
        .middle-review-tab-btn:active {
            transform: scale(0.98);
        }
        .middle-review-tab-btn .tab-badge {
            padding: 1px 7px;
            border-radius: 9999px;
            background: rgba(0, 0, 0, 0.25);
            font-size: 0.68rem;
            font-family: 'JetBrains Mono', monospace;
            font-weight: 700;
        }
        .middle-review-tab-btn.active .tab-badge {
            background: rgba(255, 255, 255, 0.25);
            color: #ffffff;
        }

        /* ===== shadcn/ui 风格：今日温故数据概览指标卡 ===== */
        .today-summary-bar {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 14px;
            padding: 6px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 8px;
            flex-shrink: 0;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
        }
        body.light-theme .today-summary-bar {
            background: #f8fafc;
            border-color: #e2e8f0;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }

        .summary-stat-item {
            cursor: pointer;
            font: inherit;
            color: var(--text-main);
            min-width: 0;
            background: rgba(255, 255, 255, 0.035);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 10px;
            padding: 8px 10px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            text-align: center;
            position: relative;
            overflow: hidden;
            transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .summary-stat-item:hover {
            background: rgba(255, 255, 255, 0.07);
            border-color: rgba(255, 255, 255, 0.14);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }
        .summary-stat-item.active { border-color: #60a5fa; background: rgba(59,130,246,0.13); box-shadow: inset 0 0 0 1px #60a5fa; }
        .summary-stat-item[data-review-category="overdue"].active { border-color:#f87171; background:rgba(239,68,68,0.13); box-shadow:inset 0 0 0 1px #f87171; }
        .summary-stat-item[data-review-category="done"].active { border-color:#34d399; background:rgba(16,185,129,0.13); box-shadow:inset 0 0 0 1px #34d399; }
        .summary-stat-item:focus-visible { outline:2px solid var(--primary); outline-offset:3px; }
        body.light-theme .summary-stat-item.active { background:#eff6ff; border-color:#3b82f6; }
        body.light-theme .summary-stat-item[data-review-category="overdue"].active { background:#fef2f2; border-color:#ef4444; }
        body.light-theme .summary-stat-item[data-review-category="done"].active { background:#ecfdf5; border-color:#10b981; }
        .summary-stat-item:nth-child(1)::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: #3b82f6; }
        .summary-stat-item:nth-child(2)::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: #ef4444; }
        .summary-stat-item:nth-child(3)::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: #10b981; }
        body.light-theme .summary-stat-item {
            background: #ffffff;
            border-color: #e2e8f0;
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
        }
        body.light-theme .summary-stat-item:hover {
            border-color: #cbd5e1;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
        }

        .stat-lbl {
            font-size: 0.68rem;
            color: var(--text-muted);
            font-weight: 600;
            letter-spacing: 0.3px;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .stat-lbl svg {
            flex-shrink: 0;
        }
        .stat-val {
            font-family: 'JetBrains Mono', 'Outfit', monospace, sans-serif;
            font-size: 1.38rem;
            font-weight: 800;
            line-height: 1.1;
            letter-spacing: -0.5px;
        }

        .stat-val.blue {
            color: #60a5fa;
            text-shadow: 0 0 20px rgba(59, 130, 246, 0.25);
        }
        .stat-val.red {
            color: #f87171;
            text-shadow: 0 0 20px rgba(239, 68, 68, 0.25);
        }
        .stat-val.green {
            color: #34d399;
            text-shadow: 0 0 20px rgba(16, 185, 129, 0.25);
        }
        body.light-theme .stat-val.blue { color: #2563eb; text-shadow: none; }
        body.light-theme .stat-val.red { color: #dc2626; text-shadow: none; }
        body.light-theme .stat-val.green { color: #059669; text-shadow: none; }

        .pending-list-scroll {
            flex: 1;
            overflow-y: auto;
            -webkit-overflow-scrolling: touch;
            overscroll-behavior-y: contain;
            display: block;
            padding-right: 4px;
            padding-bottom: 96px;
            scroll-padding-bottom: 120px;
        }
        .pending-list-scroll::-webkit-scrollbar {
            width: 4px;
        }
        .pending-list-scroll::-webkit-scrollbar-thumb {
            background: rgba(255,255,255,0.06);
            border-radius: 2px;
        }

        /* 待复习卡片 */
        .pending-card {
            background: rgba(255, 255, 255, 0.015);
            border: 1px solid rgba(255, 255, 255, 0.03);
            border-radius: 10px;
            padding: 14px 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: all 0.25s ease;
            position: relative;
        }
        body.light-theme .pending-card {
            background: #ffffff;
            border-color: #e2e8f0;
            box-shadow: 0 2px 8px rgba(0,0,0,0.02);
        }
        .pending-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-1px);
        }

        .pending-info {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .pending-sub-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            flex-shrink: 0;
            box-shadow: 0 0 8px var(--sub-color);
        }

        .pending-meta-box {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .pending-title {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.35;
        }

        .pending-path {
            font-size: 0.68rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .overdue-tag {
            background: rgba(239, 68, 68, 0.1);
            color: #f87171;
            border: 1px solid rgba(239, 68, 68, 0.15);
            font-size: 0.65rem;
            padding: 1px 5px;
            border-radius: 4px;
            font-weight: 700;
        }
        body.light-theme .overdue-tag {
            background: rgba(220, 38, 38, 0.05);
            color: #dc2626;
            border-color: rgba(220, 38, 38, 0.12);
        }

        .btn-complete-task {
            background: var(--primary);
            border: 1px solid var(--primary-light);
            color: #fff;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 0.75rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.2s;
            box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
            flex-shrink: 0;
        }
        .btn-complete-task:hover {
            background: var(--primary-light);
            box-shadow: 0 4px 16px rgba(59, 130, 246, 0.35);
        }
        .btn-complete-task.completed {
            background: rgba(16, 185, 129, 0.1) !important;
            border-color: rgba(16, 185, 129, 0.2) !important;
            color: #34d399 !important;
            box-shadow: none !important;
            cursor: default;
        }

        /* 现代化温故空状态占位 (极简仪式感与行动引导) */
        .empty-placeholder {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            min-height: 240px;
            gap: 12px;
            text-align: center;
            padding: 36px 20px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.015);
            border: 1px dashed rgba(255, 255, 255, 0.08);
            margin: 12px 0;
        }
        body.light-theme .empty-placeholder {
            background: #f8fafc;
            border-color: #e2e8f0;
        }
        .empty-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 9999px;
            background: rgba(16, 185, 129, 0.12);
            border: 1px solid rgba(16, 185, 129, 0.28);
            color: #34d399;
            font-size: 1.5rem;
            font-weight: 800;
            box-shadow: 0 4px 16px rgba(16, 185, 129, 0.15);
        }

        /* ==================== 右侧：艾宾浩斯温故日历与前瞻 ==================== */
        .calendar-panel {
            overflow-y: auto;
            gap: 12px;
            scrollbar-width: thin;
        }
        .calendar-panel::-webkit-scrollbar {
            width: 4px;
        }
        .calendar-panel::-webkit-scrollbar-thumb {
            background: rgba(255,255,255,0.06);
            border-radius: 2px;
        }

        .calendar-widget-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 8px;
        }

        .month-indicator {
            font-size: 0.95rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.01em;
            font-family: 'JetBrains Mono', monospace;
        }

        .month-nav-row {
            display: flex;
            gap: 4px;
        }

        .month-nav-btn {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-muted);
            width: 26px;
            height: 26px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 0.85rem;
            font-weight: 700;
            transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .month-nav-btn:hover {
            border-color: var(--border-hover);
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-main);
            transform: translateY(-1px);
        }
        .month-nav-btn:active {
            transform: scale(0.92);
        }
        body.light-theme .month-nav-btn {
            background: #ffffff;
            border-color: #cbd5e1;
        }

        .week-headers {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            text-align: center;
            margin-bottom: 6px;
        }

        .week-header-day {
            font-size: 0.68rem;
            font-weight: 700;
            color: var(--text-muted);
            text-transform: uppercase;
        }

        /* 日历网格 */
        .calendar-day-grid {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            gap: 5px;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 12px;
        }

        .day-cell {
            aspect-ratio: 1.05;
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 8px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            position: relative;
            transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
        }
        body.light-theme .day-cell {
            background: #f8fafc;
            border: 1px solid #e2e8f0;
        }

        .day-cell:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(59, 130, 246, 0.4);
            transform: scale(1.04);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
            z-index: 2;
        }

        .day-cell.dimmed {
            opacity: 0.25;
            cursor: default;
            pointer-events: none;
        }

        /* 今日日期高亮 */
        .day-cell.today-marker {
            background: linear-gradient(135deg, #2563eb, #3b82f6);
            border-color: #60a5fa;
            color: #fff;
            font-weight: 800;
            box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
        }
        body.light-theme .day-cell.today-marker {
            background: #2563eb;
            border-color: #3b82f6;
            color: #fff;
            box-shadow: 0 4px 10px rgba(37, 99, 235, 0.25);
        }

        /* 精细的小圆点容器 */
        .day-indicator-dots {
            display: flex;
            gap: 2px;
            position: absolute;
            bottom: 3px;
        }

        .indicator-dot {
            width: 3.5px;
            height: 3.5px;
            border-radius: 50%;
        }

        .day-cell.selected-day {
            border-color: #8b5cf6;
            background: rgba(139, 92, 246, 0.1);
            box-shadow: 0 0 8px rgba(139, 92, 246, 0.15);
        }
        body.light-theme .day-cell.selected-day {
            border-color: #7c3aed;
            background: rgba(124, 58, 237, 0.05);
        }

        /* 底部前瞻列表面板 */
        .schedule-panel {
            background: rgba(255, 255, 255, 0.01);
            border: 1px solid rgba(255, 255, 255, 0.03);
            border-radius: 10px;
            padding: 12px;
            flex: 1;
            display: flex;
            flex-direction: column;
            min-height: 200px;
        }
        body.light-theme .schedule-panel {
            background: #f8fafc;
            border-color: #e2e8f0;
        }

        .schedule-title-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.76rem;
            color: var(--text-muted);
            margin-bottom: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            padding-bottom: 6px;
            flex-shrink: 0;
        }
        body.light-theme .schedule-title-row {
            border-color: #e2e8f0;
        }

        .schedule-date-lbl {
            color: var(--text-main);
            font-weight: 700;
        }

        .schedule-tasks-box {
            flex: 1;
            overflow-y: auto;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .schedule-task-item {
            background: rgba(255, 255, 255, 0.015);
            border: 1px solid rgba(255, 255, 255, 0.03);
            border-radius: 6px;
            padding: 8px 10px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: all 0.2s;
        }
        body.light-theme .schedule-task-item {
            background: #ffffff;
            border-color: #e2e8f0;
        }

        .task-inner-layout {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .task-dot-sub {
            width: 6.5px;
            height: 6.5px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .task-name-main {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.3;
        }

        .task-chapter-sub {
            font-size: 0.66rem;
            color: var(--text-muted);
            margin-top: 1px;
            display: block;
        }

        .task-status-tag {
            font-size: 0.65rem;
            padding: 1.5px 6px;
            border-radius: 4px;
            font-weight: 700;
        }

        .review-dashboard-section {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 12px;
            padding: 12px;
            margin-bottom: 12px;
            transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
        }
        body.light-theme .review-dashboard-section {
            background: #ffffff;
            border-color: #e2e8f0;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
        }
        .review-dashboard-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            margin-bottom: 10px;
        }
        .review-dashboard-head h3 {
            margin: 0;
            font-size: 0.8rem;
            color: var(--text-main);
            font-weight: 800;
            letter-spacing: 0.01em;
        }
        .review-dashboard-head span {
            font-size: 0.68rem;
            color: var(--text-muted);
            white-space: nowrap;
            font-family: 'JetBrains Mono', monospace;
        }
        .review-dashboard-grid {
            display: grid;
            grid-template-columns: repeat(4, minmax(0, 1fr));
            gap: 8px;
        }
        .review-dashboard-stat,
        .review-pressure-card,
        .review-history-card,
        .review-date-summary-card {
            min-width: 0;
            background: rgba(0, 0, 0, 0.28);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 9px;
            padding: 9px 8px;
            position: relative;
            overflow: hidden;
            transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .review-dashboard-stat:hover,
        .review-pressure-card:hover,
        .review-history-card:hover {
            border-color: rgba(255, 255, 255, 0.12);
            transform: translateY(-1px);
        }
        body.light-theme .review-dashboard-stat,
        body.light-theme .review-pressure-card,
        body.light-theme .review-history-card,
        body.light-theme .review-date-summary-card {
            background: #f8fafc;
            border-color: #e2e8f0;
        }
        .review-dashboard-stat span,
        .review-pressure-card span,
        .review-history-card span,
        .review-date-summary-card span {
            display: block;
            color: var(--text-muted);
            font-size: 0.65rem;
            font-weight: 600;
            line-height: 1.2;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .review-dashboard-stat strong,
        .review-pressure-card strong,
        .review-history-card strong,
        .review-date-summary-card strong {
            display: block;
            margin-top: 5px;
            font-size: 1.15rem;
            font-weight: 800;
            line-height: 1;
            color: var(--text-main);
            font-family: 'JetBrains Mono', monospace;
            letter-spacing: -0.02em;
        }
        .review-stat-blue::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: #3b82f6; }
        .review-stat-green::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: #10b981; }
        .review-stat-yellow::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: #f59e0b; }
        .review-stat-red::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: #ef4444; }
        .review-stat-purple::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: #a855f7; }

        .review-stat-blue strong { color: #60a5fa; }
        .review-stat-green strong { color: #34d399; }
        .review-stat-yellow strong { color: #fbbf24; }
        .review-stat-red strong { color: #f87171; }
        .review-stat-purple strong { color: #c084fc; }
        body.light-theme .review-stat-blue strong { color: #2563eb; }
        body.light-theme .review-stat-green strong { color: #16a34a; }
        body.light-theme .review-stat-yellow strong { color: #d97706; }
        body.light-theme .review-stat-red strong { color: #dc2626; }
        body.light-theme .review-stat-purple strong { color: #9333ea; }
        .review-pressure-grid {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 7px;
        }
        .review-pressure-meter {
            height: 5px;
            margin-top: 8px;
            background: rgba(148, 163, 184, 0.16);
            border-radius: 999px;
            overflow: hidden;
        }
        .review-pressure-meter i {
            display: block;
            height: 100%;
            border-radius: inherit;
        }
        .real-exam-rank-controls {
            display: flex;
            flex-wrap: wrap;
            gap: 7px;
            margin-bottom: 9px;
        }
        .real-exam-rank-controls button {
            height: 28px;
            padding: 0 10px;
            border-radius: 999px;
            border: 1px solid rgba(148, 163, 184, 0.18);
            background: rgba(255, 255, 255, 0.03);
            color: var(--text-main);
            font-size: 0.68rem;
            font-weight: 800;
            cursor: pointer;
        }
        body.light-theme .real-exam-rank-controls button {
            background: #ffffff;
            border-color: #cbd5e1;
        }
        .real-exam-rank-controls button.active {
            color: #bfdbfe;
            background: rgba(59, 130, 246, 0.13);
            border-color: rgba(59, 130, 246, 0.34);
        }
        body.light-theme .real-exam-rank-controls button.active {
            color: #1d4ed8;
            background: #dbeafe;
            border-color: #93c5fd;
        }
        .real-exam-rank-list {
            display: flex;
            flex-direction: column;
            gap: 7px;
            max-height: 318px;
            overflow-y: auto;
            padding-right: 2px;
        }
        .real-exam-rank-row {
            display: grid;
            grid-template-columns: 48px 1fr 76px;
            align-items: center;
            gap: 8px;
            padding: 8px;
            border-radius: 7px;
            background: rgba(15, 23, 42, 0.56);
            border: 1px solid rgba(148, 163, 184, 0.12);
            cursor: pointer;
            transition: all 0.16s ease;
        }
        .real-exam-rank-row:hover {
            background: rgba(59, 130, 246, 0.12);
            border-color: rgba(59, 130, 246, 0.35);
            transform: translateY(-1px);
        }
        body.light-theme .real-exam-rank-row {
            background: #ffffff;
            border-color: #e2e8f0;
        }
        .real-exam-rank-code {
            width: 48px;
            min-height: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            line-height: 1.08;
            border-radius: 6px;
            background: rgba(37, 99, 235, 0.12);
            border: 1px solid rgba(37, 99, 235, 0.22);
            color: #bfdbfe;
            font-size: 0.6rem;
            font-weight: 900;
        }
        body.light-theme .real-exam-rank-code {
            color: #1d4ed8;
            background: #dbeafe;
            border-color: #93c5fd;
        }
        .real-exam-rank-title {
            min-width: 0;
        }
        .real-exam-rank-title strong {
            display: block;
            color: var(--text-main);
            font-size: 0.72rem;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .real-exam-rank-title span {
            display: block;
            margin-top: 4px;
            color: var(--text-muted);
            font-size: 0.62rem;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .real-exam-rank-score {
            text-align: right;
            white-space: nowrap;
        }
        .real-exam-rank-score strong {
            display: block;
            font-size: 0.8rem;
        }
        .real-exam-rank-score span {
            display: block;
            margin-top: 4px;
            color: var(--text-muted);
            font-size: 0.62rem;
        }
        .review-history-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 7px;
        }
        .history-range-btn {
            border: 1px solid rgba(148, 163, 184, 0.18);
            background: rgba(255, 255, 255, 0.03);
            color: var(--text-main);
            border-radius: 999px;
            padding: 0 10px;
            height: 28px;
            font-size: 0.7rem;
            font-weight: 800;
            cursor: pointer;
            white-space: nowrap;
        }
        body.light-theme .history-range-btn {
            background: #fff;
            border-color: #cbd5e1;
        }
        .history-range-menu {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 6px;
            margin-bottom: 10px;
        }
        .history-range-menu button {
            border: 1px solid rgba(148, 163, 184, 0.18);
            background: rgba(255, 255, 255, 0.03);
            color: var(--text-main);
            border-radius: 8px;
            padding: 8px 0;
            font-size: 0.7rem;
            font-weight: 700;
            cursor: pointer;
        }
        .history-range-menu button.active {
            background: rgba(59, 130, 246, 0.16);
            border-color: rgba(59, 130, 246, 0.36);
            color: #60a5fa;
        }
        body.light-theme .history-range-menu button {
            background: #fff;
            border-color: #e2e8f0;
        }
        body.light-theme .history-range-menu button.active {
            background: #dbeafe;
            border-color: #93c5fd;
            color: #2563eb;
        }
        .review-history-card.wide {
            grid-column: span 2;
        }
        .calendar-day-grid.pressure-calendar {
            border-bottom: 0;
            padding-bottom: 0;
        }
        .day-pressure-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            position: absolute;
            bottom: 4px;
        }
        .day-cell.pressure-low .day-pressure-dot { background: #22c55e; }
        .day-cell.pressure-mid .day-pressure-dot { background: #f59e0b; }
        .day-cell.pressure-high .day-pressure-dot { background: #ef4444; }
        .review-date-summary-grid {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 7px;
        }

        /* ==================== 皮肤形状语言：不只换颜色，也换组件骨架 ==================== */
        body[data-skin] .workspace-panel,
        body[data-skin] .subject-header-row,
        body[data-skin] .chapter-item,
        body[data-skin] .pending-card,
        body[data-skin] .question-pending-card,
        body[data-skin] .review-dashboard-section,
        body[data-skin] .calendar-widget,
        body[data-skin] .schedule-panel,
        body[data-skin] .theme-switch-btn,
        body[data-skin] .cloud-sync-btn,
        body[data-skin] .time-btn,
        body[data-skin] .day-cell {
            transition: background-color 0.22s ease, border-color 0.22s ease, border-radius 0.22s ease, box-shadow 0.22s ease, transform 0.22s ease;
        }

        body[data-skin="medical"] .workspace-panel,
        body[data-skin="medical"] .pending-card,
        body[data-skin="medical"] .question-pending-card,
        body[data-skin="medical"] .review-dashboard-section,
        body[data-skin="medical"] .calendar-widget,
        body[data-skin="medical"] .schedule-panel {
            border-radius: 6px;
            box-shadow: none;
        }
        body[data-skin="medical"] .subject-header-row {
            border-radius: 6px;
            border-left: 5px solid var(--sub-theme-color);
            padding-left: 13px;
            background: linear-gradient(90deg, color-mix(in srgb, var(--sub-theme-color) 13%, transparent), rgba(255,255,255,0.018));
        }
        body.light-theme[data-skin="medical"] .subject-header-row {
            background: linear-gradient(90deg, color-mix(in srgb, var(--sub-theme-color) 12%, #fff), #fff);
        }
        body[data-skin="medical"] .circle-ring-box {
            width: 52px;
            height: 38px;
            border-radius: 6px;
            border: 1px solid color-mix(in srgb, var(--sub-theme-color) 48%, var(--border-color));
            background: color-mix(in srgb, var(--sub-theme-color) 12%, var(--bg-panel));
        }
        body[data-skin="medical"] .circle-ring-svg {
            display: none;
        }
        body[data-skin="medical"] .circle-ring-text {
            font-size: 0.74rem;
            letter-spacing: 0.02em;
            color: var(--sub-theme-color);
        }
        body[data-skin="medical"] .subject-lbl-prog::before {
            content: "";
            display: inline-block;
            width: 26px;
            height: 3px;
            margin-right: 6px;
            vertical-align: middle;
            border-radius: 999px;
            background: var(--sub-theme-color);
        }
        body[data-skin="medical"] .theme-switch-btn,
        body[data-skin="medical"] .cloud-sync-btn,
        body[data-skin="medical"] .time-btn,
        body[data-skin="medical"] .month-nav-btn {
            border-radius: 5px;
            box-shadow: inset 0 -1px 0 rgba(255,255,255,0.08);
        }
        body[data-skin="medical"] .day-cell {
            border-radius: 4px;
        }
        body[data-skin="medical"] .mobile-tabs {
            border-top: 1px solid color-mix(in srgb, var(--primary) 36%, var(--border-color));
        }
        body[data-skin="medical"] .mobile-tab.active {
            border-top: 3px solid var(--primary-light);
            background: color-mix(in srgb, var(--primary) 8%, transparent);
        }

        body[data-skin="paper"] {
            background-image: linear-gradient(var(--grid-color) 1px, transparent 1px);
            background-size: 100% 28px;
        }
        body[data-skin="paper"] .workspace-panel,
        body[data-skin="paper"] .pending-card,
        body[data-skin="paper"] .question-pending-card,
        body[data-skin="paper"] .review-dashboard-section,
        body[data-skin="paper"] .calendar-widget,
        body[data-skin="paper"] .schedule-panel {
            border-radius: 4px;
            border-style: solid;
            box-shadow: 0 1px 0 rgba(0,0,0,0.04), inset 0 0 0 1px rgba(255,255,255,0.22);
        }
        body[data-skin="paper"] .subject-header-row {
            border-radius: 4px;
            border-left: 0;
            border-top: 1px solid color-mix(in srgb, var(--sub-theme-color) 40%, var(--border-color));
            box-shadow: inset 0 -2px 0 color-mix(in srgb, var(--sub-theme-color) 30%, transparent);
        }
        body[data-skin="paper"] .circle-ring-box {
            width: 56px;
            height: 34px;
            border-radius: 3px;
            border: 1px solid color-mix(in srgb, var(--sub-theme-color) 45%, var(--border-color));
            background: color-mix(in srgb, var(--sub-theme-color) 11%, var(--bg-panel));
            transform: rotate(-1deg);
        }
        body[data-skin="paper"] .circle-ring-svg {
            display: none;
        }
        body[data-skin="paper"] .circle-ring-text {
            color: var(--sub-theme-color);
        }
        body[data-skin="paper"] .chapter-item,
        body[data-skin="paper"] .theme-switch-btn,
        body[data-skin="paper"] .cloud-sync-btn,
        body[data-skin="paper"] .time-btn,
        body[data-skin="paper"] .month-nav-btn {
            border-radius: 3px;
        }
        body[data-skin="paper"] .pending-card::before,
        body[data-skin="paper"] .review-dashboard-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 14px;
            right: 14px;
            height: 2px;
            background: color-mix(in srgb, var(--primary) 35%, transparent);
            opacity: 0.7;
        }
        body[data-skin="paper"] .pending-card,
        body[data-skin="paper"] .review-dashboard-section {
            position: relative;
            overflow: hidden;
        }
        body[data-skin="paper"] .mobile-tab.active {
            background: color-mix(in srgb, var(--primary) 16%, transparent);
            border-radius: 4px 4px 0 0;
        }

        body[data-skin="orange-cat"] .workspace-panel,
        body[data-skin="orange-cat"] .pending-card,
        body[data-skin="orange-cat"] .question-pending-card,
        body[data-skin="orange-cat"] .review-dashboard-section,
        body[data-skin="orange-cat"] .calendar-widget,
        body[data-skin="orange-cat"] .schedule-panel {
            border-radius: 14px;
            border-width: 2px;
            box-shadow: 4px 4px 0 color-mix(in srgb, var(--primary) 28%, rgba(0,0,0,0.28));
        }
        body[data-skin="orange-cat"] .subject-header-row {
            border-radius: 16px;
            border-width: 2px;
            box-shadow: 3px 3px 0 color-mix(in srgb, var(--sub-theme-color) 30%, rgba(0,0,0,0.25));
        }
        body[data-skin="orange-cat"] .circle-ring-box {
            width: 50px;
            height: 46px;
            border-radius: 58% 42% 54% 46%;
            border: 2px solid color-mix(in srgb, var(--sub-theme-color) 65%, var(--border-color));
            background: color-mix(in srgb, var(--sub-theme-color) 15%, var(--bg-panel));
            box-shadow: 2px 2px 0 color-mix(in srgb, var(--sub-theme-color) 28%, transparent);
        }
        body[data-skin="orange-cat"] .circle-ring-svg {
            display: none;
        }
        body[data-skin="orange-cat"] .chapter-item,
        body[data-skin="orange-cat"] .theme-switch-btn,
        body[data-skin="orange-cat"] .cloud-sync-btn,
        body[data-skin="orange-cat"] .time-btn,
        body[data-skin="orange-cat"] .month-nav-btn {
            border-radius: 999px;
            border-width: 2px;
        }
        body[data-skin="orange-cat"] .pending-card:hover,
        body[data-skin="orange-cat"] .subject-header-row:hover {
            transform: translate(-1px, -1px);
            box-shadow: 5px 5px 0 color-mix(in srgb, var(--primary) 26%, rgba(0,0,0,0.28));
        }
        body[data-skin="orange-cat"] .day-cell {
            border-radius: 11px;
            border-width: 2px;
        }
        body[data-skin="orange-cat"] .mobile-tabs {
            height: 64px;
            border-top-width: 2px;
        }
        body[data-skin="orange-cat"] .mobile-tab.active {
            border-radius: 999px;
            margin: 8px 4px;
            background: color-mix(in srgb, var(--primary) 18%, transparent);
        }

        body[data-skin="cyber"] .workspace-panel,
        body[data-skin="cyber"] .pending-card,
        body[data-skin="cyber"] .question-pending-card,
        body[data-skin="cyber"] .review-dashboard-section,
        body[data-skin="cyber"] .calendar-widget,
        body[data-skin="cyber"] .schedule-panel,
        body[data-skin="cyber"] .subject-header-row,
        body[data-skin="cyber"] .chapter-item,
        body[data-skin="cyber"] .day-cell {
            border-radius: 2px;
            clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
        }
        body[data-skin="cyber"] .workspace-panel,
        body[data-skin="cyber"] .review-dashboard-section,
        body[data-skin="cyber"] .pending-card,
        body[data-skin="cyber"] .subject-header-row {
            box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--primary-light) 18%, transparent), 0 0 18px color-mix(in srgb, var(--primary) 8%, transparent);
        }
        body[data-skin="cyber"] .circle-ring-box {
            width: 50px;
            height: 36px;
            border-radius: 2px;
            clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
            border: 1px solid color-mix(in srgb, var(--sub-theme-color) 70%, var(--border-color));
            background: color-mix(in srgb, var(--sub-theme-color) 12%, var(--bg-panel));
        }
        body[data-skin="cyber"] .circle-ring-svg {
            display: none;
        }
        body[data-skin="cyber"] .circle-ring-text,
        body[data-skin="cyber"] .subject-lbl-val,
        body[data-skin="cyber"] .month-indicator {
            font-family: 'JetBrains Mono', monospace;
        }
        body[data-skin="cyber"] .theme-switch-btn,
        body[data-skin="cyber"] .cloud-sync-btn,
        body[data-skin="cyber"] .time-btn,
        body[data-skin="cyber"] .month-nav-btn {
            border-radius: 2px;
            clip-path: polygon(0 0, calc(100% - 7px) 0, 100% 7px, 100% 100%, 7px 100%, 0 calc(100% - 7px));
        }
        body[data-skin="cyber"] .mobile-tab.active {
            background: color-mix(in srgb, var(--primary-light) 14%, transparent);
            clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
        }

        body[data-skin="forest"] .workspace-panel,
        body[data-skin="forest"] .pending-card,
        body[data-skin="forest"] .question-pending-card,
        body[data-skin="forest"] .review-dashboard-section,
        body[data-skin="forest"] .calendar-widget,
        body[data-skin="forest"] .schedule-panel {
            border-radius: 18px 10px 18px 10px;
            box-shadow: 0 10px 24px rgba(0,0,0,0.08);
        }
        body[data-skin="forest"] .subject-header-row {
            border-radius: 22px 8px 22px 8px;
            background: linear-gradient(135deg, color-mix(in srgb, var(--sub-theme-color) 11%, transparent), rgba(255,255,255,0.018));
        }
        body[data-skin="forest"] .circle-ring-box {
            width: 46px;
            height: 46px;
            border-radius: 70% 30% 70% 30%;
            border: 1px solid color-mix(in srgb, var(--sub-theme-color) 50%, var(--border-color));
            background: color-mix(in srgb, var(--sub-theme-color) 12%, var(--bg-panel));
            transform: rotate(-6deg);
        }
        body[data-skin="forest"] .circle-ring-svg {
            display: none;
        }
        body[data-skin="forest"] .circle-ring-text {
            transform: rotate(6deg);
            color: var(--sub-theme-color);
        }
        body[data-skin="forest"] .chapter-item,
        body[data-skin="forest"] .theme-switch-btn,
        body[data-skin="forest"] .cloud-sync-btn,
        body[data-skin="forest"] .time-btn {
            border-radius: 999px;
        }
        body[data-skin="forest"] .day-cell {
            border-radius: 12px 5px 12px 5px;
        }

                /* ==================== 贺银成5500题 极简极美重构 UI ==================== */
                /* ==================== 贺银成5500题 极简极美重构 UI ==================== */
                /* ==================== 贺银成5500题 极简极美重构 UI ==================== */
                /* ==================== 贺银成5500题 极简极美重构 UI ==================== */
        
        .he5500-section.collapsed .he5500-subject-list,
        .he5500-section.collapsed .subject-stack {
            display: none !important;
        }
        .he5500-drawer-toggle-btn {
            border: 1px solid var(--border-color);
            background: color-mix(in srgb, var(--primary) 10%, var(--bg-panel));
            color: var(--primary-light);
            border-radius: 6px;
            padding: 2px 8px;
            font-size: 0.75rem;
            font-weight: 800;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .he5500-drawer-toggle-btn:hover {
            background: var(--primary);
            color: #ffffff;
        }
    
.he5500-section {
            margin-top: 10px;
            margin-bottom: 10px;
            padding: 11px 12px;
            position: relative;
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 12px;
            transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .he5500-section:hover {
            border-color: rgba(255, 255, 255, 0.12);
            background: rgba(255, 255, 255, 0.035);
        }
        body.light-theme .he5500-section {
            background: #ffffff;
            border-color: #e2e8f0;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
        }
        body.light-theme .he5500-section:hover {
            border-color: #cbd5e1;
            background: #f8fafc;
        }

        .he5500-heading {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            padding: 2px 0;
            color: var(--text-main);
            user-select: none;
        }
        .he5500-heading-title {
            display: flex;
            align-items: center;
            gap: 9px;
            font-size: 0.86rem;
            font-weight: 800;
            letter-spacing: 0.01em;
        }
        .he5500-heading-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: linear-gradient(135deg, rgba(239, 68, 68, 0.18), rgba(249, 115, 22, 0.18));
            color: #f97316;
            font-size: 0.78rem;
            box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
        }
        .he5500-heading-count {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 2px 9px;
            border-radius: 9999px;
            background: rgba(59, 130, 246, 0.12);
            border: 1px solid rgba(59, 130, 246, 0.25);
            color: var(--primary-light);
            font-size: 0.68rem;
            font-weight: 700;
            font-family: 'JetBrains Mono', monospace;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
        }
        body.light-theme .he5500-heading-count {
            background: #eff6ff;
            border-color: #bfdbfe;
            color: #2563eb;
        }

        .he5500-subject-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .he5500-subject-card {
            position: relative;
            border: 1px solid var(--border-color);
            background: var(--bg-panel);
            border-radius: 12px;
            overflow: hidden;
            transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
        }
        body.light-theme .he5500-subject-card {
            background: #ffffff;
            border-color: var(--border-color);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
        }
        .he5500-subject-card:hover {
            transform: translateY(-2px);
            border-color: var(--border-hover);
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
        }

        .he5500-subject-head {
            width: 100%;
            border: 0;
            background: transparent;
            color: var(--text-main);
            padding: 10px 12px;
            display: flex;
            align-items: center;
            gap: 10px;
            cursor: pointer;
            text-align: left;
        }

        .he5500-badge-wrapper {
            position: relative;
            flex-shrink: 0;
        }
        .he5500-badge {
            width: 42px;
            height: 38px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-main);
            background: color-mix(in srgb, var(--primary) 8%, var(--bg-panel));
            border: 1px solid var(--border-color);
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
            transition: transform 0.22s ease;
        }
        body.light-theme .he5500-badge {
            background: #f1f5f9;
            border-color: #e2e8f0;
            color: #1e293b;
        }
        .he5500-subject-card:hover .he5500-badge {
            transform: scale(1.03);
        }

        /* 专属主题形态联动 (彻底杜绝浅色模式下的黑块与刺眼荧光) */
        /*  Linear 极客 */
        body.dark-theme[data-skin="linear-dark"] .he5500-badge {
            border-radius: 6px;
            background: #141722;
            border-color: #262b3d;
            color: #e2e8f0;
        }
        body.light-theme[data-skin="linear-dark"] .he5500-badge {
            border-radius: 6px;
            background: #f1f3f5;
            border-color: #dee2e6;
            color: #212529;
        }

        /*  纸质典藏 */
        body.dark-theme[data-skin="editorial-paper"] .he5500-badge {
            border-radius: 4px;
            background: #1e2420;
            border: 1.5px solid #38453d;
            color: #f0ede6;
        }
        body.light-theme[data-skin="editorial-paper"] .he5500-badge {
            border-radius: 4px;
            background: #fff;
            border: 1.5px solid #d4c8b0;
            color: #2c2523;
        }

        /*  京都抹茶 */
        body.dark-theme[data-skin="matcha"] .he5500-badge {
            border-radius: 7px;
            background: #16241e;
            border-color: #284235;
            color: #edf7f2;
        }
        body.light-theme[data-skin="matcha"] .he5500-badge {
            border-radius: 7px;
            background: #edf5f0;
            border-color: #c0dbc9;
            color: #163324;
        }

        /*  落日莫兰迪 */
        body.dark-theme[data-skin="morandi"] .he5500-badge {
            border-radius: 8px;
            background: #231c21;
            border-color: #42323f;
            color: #f7f1f5;
        }
        body.light-theme[data-skin="morandi"] .he5500-badge {
            border-radius: 8px;
            background: #f6edf2;
            border-color: #e3ccda;
            color: #3b2836;
        }

        .he5500-subject-main {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .he5500-title-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
        }
        .he5500-subject-name {
            font-size: 0.9rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.2px;
        }

        .he5500-rate-badge {
            font-size: 0.65rem;
            font-weight: 800;
            padding: 2px 7px;
            border-radius: 999px;
            font-family: 'JetBrains Mono', monospace;
            line-height: 1.2;
        }
        .he5500-rate-badge.rate-none {
            background: color-mix(in srgb, var(--text-muted) 12%, transparent);
            color: var(--text-muted);
        }
        .he5500-rate-badge.rate-low {
            background: rgba(239, 68, 68, 0.14);
            color: #ef4444;
            border: 1px solid rgba(239, 68, 68, 0.28);
        }
        .he5500-rate-badge.rate-mid {
            background: rgba(245, 158, 11, 0.14);
            color: #f59e0b;
            border: 1px solid rgba(245, 158, 11, 0.28);
        }
        .he5500-rate-badge.rate-high {
            background: rgba(34, 197, 94, 0.14);
            color: #10b981;
            border: 1px solid rgba(34, 197, 94, 0.28);
        }

        .he5500-progress-bar-container {
            width: 100%;
        }
        .he5500-progress-track {
            height: 5px;
            width: 100%;
            background: color-mix(in srgb, var(--text-muted) 16%, transparent);
            border-radius: 999px;
            overflow: hidden;
        }
        .he5500-progress-fill {
            height: 100%;
            background: var(--primary);
            border-radius: 999px;
            transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .he5500-stats-row {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--text-muted);
            font-size: 0.67rem;
            font-weight: 600;
        }
        .he5500-stat-pill {
            display: inline-flex;
            align-items: center;
        }
        .he5500-stat-pill.highlight {
            color: var(--text-main);
            font-weight: 700;
        }
        .he5500-stat-dot {
            opacity: 0.4;
            font-size: 0.6rem;
        }

        .he5500-arrow-box {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: color-mix(in srgb, var(--text-muted) 10%, transparent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            flex-shrink: 0;
            transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .he5500-subject-card:hover .he5500-arrow-box {
            background: color-mix(in srgb, var(--he-color) 15%, transparent);
            color: var(--he-color);
        }
        .he5500-subject-card.open .he5500-arrow-box {
            transform: rotate(180deg);
            background: color-mix(in srgb, var(--he-color) 20%, transparent);
            color: var(--he-color);
        }

        .he5500-chapter-list {
            display: none;
            padding: 8px 10px 10px 10px;
            border-top: 1px solid color-mix(in srgb, var(--he-color) 18%, var(--border-color));
            background: color-mix(in srgb, var(--he-color) 3%, rgba(0, 0, 0, 0.15));
            flex-direction: column;
            gap: 6px;
            position: relative;
        }
        body.light-theme .he5500-chapter-list {
            background: color-mix(in srgb, var(--he-color) 3%, #f8fafc);
        }
        .he5500-subject-card.open .he5500-chapter-list {
            display: flex;
            animation: he5500SlideDown 0.22s cubic-bezier(0.16, 1, 0.3, 1);
        }
        @keyframes he5500SlideDown {
            from { opacity: 0; transform: translateY(-4px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .he5500-chapter-btn {
            border: 1px solid color-mix(in srgb, var(--border-color) 80%, transparent);
            background: color-mix(in srgb, var(--bg-panel) 90%, transparent);
            color: var(--text-main);
            border-radius: 9px;
            padding: 9px 12px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            text-align: left;
            transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
        }
        body.light-theme .he5500-chapter-btn {
            background: #ffffff;
            border-color: #e2e8f0;
        }
        .he5500-chapter-btn:hover {
            border-color: color-mix(in srgb, var(--he-color) 45%, var(--border-hover));
            background: color-mix(in srgb, var(--he-color) 8%, var(--bg-panel-hover));
            transform: translateX(3px);
        }
        .he5500-ch-info {
            display: flex;
            align-items: center;
            gap: 8px;
            min-width: 0;
        }
        .he5500-ch-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 22px;
            height: 20px;
            padding: 0 5px;
            border-radius: 5px;
            background: color-mix(in srgb, var(--he-color) 12%, transparent);
            color: var(--he-color);
            font-size: 0.65rem;
            font-weight: 800;
            font-family: 'JetBrains Mono', monospace;
            flex-shrink: 0;
        }
        .he5500-ch-name {
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .he5500-ch-action {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .he5500-ch-count {
            color: var(--text-muted);
            font-size: 0.68rem;
            font-weight: 600;
            font-family: 'JetBrains Mono', monospace;
        }
        .he5500-ch-start-tag {
            font-size: 0.68rem;
            font-weight: 800;
            color: var(--he-color);
            opacity: 0;
            transform: translateX(-4px);
            transition: all 0.2s ease;
        }
        .he5500-chapter-btn:hover .he5500-ch-start-tag {
            opacity: 1;
            transform: translateX(0);
        }

        .he5500-modal {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 100050;
            background: rgba(15, 23, 42, 0.68);
            backdrop-filter: blur(10px);
            align-items: center;
            justify-content: center;
            padding: 18px;
        }
        .he5500-modal.show {
            display: flex;
        }
        .he5500-card {
            width: min(780px, 96vw);
            max-height: min(86vh, 820px);
            display: flex;
            flex-direction: column;
            overflow: hidden;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            background: var(--bg-panel);
            color: var(--text-main);
            box-shadow: 0 24px 70px rgba(0,0,0,0.45);
            animation: he5500ModalPop 0.24s cubic-bezier(0.16, 1, 0.3, 1);
        }
        @keyframes he5500ModalPop {
            from { opacity: 0; transform: scale(0.96); }
            to { opacity: 1; transform: scale(1); }
        }
        .he5500-modal-head,
        .he5500-modal-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            padding: 14px 18px;
            border-bottom: 1px solid var(--border-color);
        }
        .he5500-modal-foot {
            border-top: 1px solid var(--border-color);
            border-bottom: 0;
            flex-wrap: wrap;
            background: color-mix(in srgb, var(--bg-panel) 95%, transparent);
        }
        .he5500-modal-title {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
            min-width: 0;
        }
        .he5500-pill {
            display: inline-flex;
            align-items: center;
            min-height: 28px;
            padding: 4px 11px;
            border-radius: 999px;
            background: color-mix(in srgb, var(--primary) 14%, transparent);
            color: var(--primary-light);
            border: 1px solid color-mix(in srgb, var(--primary) 32%, var(--border-color));
            font-size: 0.74rem;
            font-weight: 800;
        }
        .he5500-modal-close {
            border: 0;
            background: transparent;
            color: var(--text-main);
            font-size: 1.7rem;
            line-height: 1;
            cursor: pointer;
            border-radius: 8px;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.18s ease;
        }
        .he5500-modal-close:hover {
            background: color-mix(in srgb, var(--text-muted) 15%, transparent);
        }
        .he5500-modal-body {
            overflow: auto;
            padding: 18px;
        }
        .he5500-question {
            border: 1px solid var(--border-color);
            background: color-mix(in srgb, var(--bg-panel-hover) 65%, transparent);
            border-radius: 12px;
            padding: 16px;
            line-height: 1.75;
            font-size: 0.95rem;
            font-weight: 700;
            white-space: pre-wrap;
        }
        .he5500-options {
            display: flex;
            flex-direction: column;
            gap: 9px;
            margin-top: 14px;
        }
        .he5500-option {
            border: 1px solid var(--border-color);
            background: color-mix(in srgb, var(--bg-panel-hover) 55%, transparent);
            color: var(--text-main);
            border-radius: 11px;
            padding: 12px 14px;
            cursor: pointer;
            text-align: left;
            line-height: 1.55;
            font-size: 0.88rem;
            transition: all 0.18s ease;
        }
        .he5500-option:hover {
            border-color: var(--border-hover);
            background: var(--bg-panel-hover);
            transform: translateX(2px);
        }
        .he5500-option.selected {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 2px var(--primary-glow);
            background: color-mix(in srgb, var(--primary) 12%, var(--bg-panel));
        }
        .he5500-option.correct {
            border-color: rgba(34, 197, 94, 0.65);
            background: rgba(34, 197, 94, 0.16);
        }
        .he5500-option.wrong {
            border-color: rgba(239, 68, 68, 0.65);
            background: rgba(239, 68, 68, 0.15);
        }
        .he5500-answer {
            display: none;
            margin-top: 14px;
            border: 1px solid color-mix(in srgb, var(--primary) 26%, var(--border-color));
            background: color-mix(in srgb, var(--primary) 8%, transparent);
            border-radius: 12px;
            padding: 14px;
            line-height: 1.7;
            color: var(--text-main);
            white-space: pre-wrap;
        }
        .he5500-actions {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .he5500-btn {
            border: 1px solid var(--border-color);
            background: var(--bg-panel-hover);
            color: var(--text-main);
            border-radius: 9px;
            padding: 8px 14px;
            cursor: pointer;
            font-size: 0.78rem;
            font-weight: 800;
            transition: all 0.18s ease;
        }
        .he5500-btn:hover {
            border-color: var(--border-hover);
            transform: translateY(-1px);
        }
        .he5500-btn.primary {
            background: var(--primary);
            border-color: var(--primary-light);
            color: #fff;
            box-shadow: 0 3px 10px color-mix(in srgb, var(--primary) 30%, transparent);
        }


        /* ==================== 坚果云 WebDAV 同步弹窗 (Modal) ==================== */
        .sync-modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(4px);
            z-index: 100;
            display: none;
            align-items: center;
            justify-content: center;
        }
        .sync-modal-overlay.active {
            display: flex;
        }

        .sync-modal-content {
            background: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: 14px;
            width: min(420px, calc(100vw - 32px));
            max-height: calc(100vh - 32px);
            max-height: calc(100dvh - 32px);
            overflow-y: auto;
            overscroll-behavior: contain;
            box-sizing: border-box;
            padding: 24px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        body.light-theme .sync-modal-content {
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
        }

        .sync-modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .sync-modal-title {
            font-size: 1rem;
            font-weight: 700;
        }
        .sync-modal-close {
            background: none;
            border: none;
            color: var(--text-muted);
            cursor: pointer;
            font-size: 1.25rem;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .form-label {
            font-size: 0.72rem;
            font-weight: 700;
            color: var(--text-muted);
        }
        .form-input {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid var(--border-color);
            color: var(--text-main);
            padding: 8px 12px;
            border-radius: 8px;
            font-size: 0.8rem;
            font-family: inherit;
        }
        body.light-theme .form-input {
            background: #f8fafc;
        }
        .form-input:focus {
            border-color: var(--primary);
            outline: none;
        }

        .sync-actions-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
            margin-top: 8px;
        }

        .sync-btn-primary {
            background: var(--primary);
            border: 1px solid var(--primary-light);
            color: #fff;
            padding: 8px 12px;
            border-radius: 8px;
            font-size: 0.75rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.2s;
            text-align: center;
        }
        .sync-btn-primary:hover {
            background: var(--primary-light);
        }

        .sync-btn-secondary {
            background: rgba(255,255,255,0.02);
            border: 1px solid var(--border-color);
            color: var(--text-main);
            padding: 8px 12px;
            border-radius: 8px;
            font-size: 0.75rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.2s;
            text-align: center;
        }
        body.light-theme .sync-btn-secondary {
            background: #f1f5f9;
        }
        .sync-btn-secondary:hover {
            background: rgba(255,255,255,0.05);
            border-color: var(--border-hover);
        }

        .sync-help-text {
            font-size: 0.66rem;
            color: var(--text-dark);
            line-height: 1.4;
            background: rgba(255, 255, 255, 0.01);
            border: 1px dashed var(--border-color);
            border-radius: 6px;
            padding: 8px;
        }

        /* 题级颗粒度重构新增样式 */
        .cors-warning-banner {
            display: none;
            background: rgba(239, 68, 68, 0.1);
            border: 1px dashed #ef4444;
            color: #f87171;
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 0.75rem;
            margin-bottom: 12px;
            flex-direction: column;
            gap: 6px;
            line-height: 1.4;
        }
        body.light-theme .cors-warning-banner {
            background: #fef2f2;
            border-color: #fca5a5;
            color: #991b1b;
        }
        .middle-chapter-header {
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 16px 0 8px 0;
            padding: 6px 12px;
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 0.75rem;
            font-weight: 700;
        }
        body.light-theme .middle-chapter-header {
            background: #f8fafc;
        }
        .subject-review-drawer {
            margin: 14px 0 10px 0;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
            background: rgba(255, 255, 255, 0.025);
        }
        body.light-theme .subject-review-drawer {
            background: #f8fafc;
        }
        .subject-review-header {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 10px;
            cursor: pointer;
            user-select: none;
        }
        .subject-review-title {
            display: flex;
            align-items: center;
            gap: 8px;
            min-width: 0;
            flex: 1;
            font-size: 0.78rem;
            font-weight: 800;
            color: var(--text-main);
        }
        .subject-review-caret {
            color: var(--text-muted);
            font-size: 0.72rem;
            width: 12px;
            text-align: center;
        }
        .subject-review-actions {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .btn-subject-advance {
            border: 1px solid rgba(34, 197, 94, 0.45);
            background: rgba(34, 197, 94, 0.12);
            color: #86efac;
            border-radius: 6px;
            padding: 5px 8px;
            font-size: 0.68rem;
            font-weight: 800;
            cursor: pointer;
        }
        .btn-subject-advance:hover {
            border-color: rgba(34, 197, 94, 0.85);
            background: rgba(34, 197, 94, 0.22);
        }
        body.light-theme .btn-subject-advance {
            background: #ecfdf5;
            color: #047857;
            border-color: #86efac;
        }
        .subject-review-body {
            padding: 0 8px 8px;
        }
        .subject-review-drawer.collapsed .subject-review-body {
            display: none;
        }
        .middle-chapter-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
        }
        .middle-chapter-name {
            color: var(--text-main);
        }
        .middle-chapter-count {
            color: var(--text-muted);
            font-size: 0.68rem;
            font-weight: 400;
        }
        /* ===== shadcn/ui 风格：温故卡片与微交互 ===== */
        .question-pending-card {
            background: var(--bg-panel);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 12px;
            margin-bottom: 10px;
            overflow: hidden;
            content-visibility: auto;
            contain-intrinsic-size: auto 68px;
            contain: layout style;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
            transition: border-color 0.2s cubic-bezier(0.16, 1, 0.3, 1),
                        box-shadow 0.2s cubic-bezier(0.16, 1, 0.3, 1),
                        transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .question-pending-card:hover {
            border-color: rgba(59, 130, 246, 0.45);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(59, 130, 246, 0.15);
            transform: translateY(-1px);
        }
        body.light-theme .question-pending-card {
            background: #ffffff;
            border-color: #e2e8f0;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
        }
        body.light-theme .question-pending-card:hover {
            border-color: #93c5fd;
            box-shadow: 0 6px 18px rgba(37, 99, 235, 0.08);
        }
        .question-pending-card.bookmarked {
            border-color: rgba(59, 130, 246, 0.6);
            box-shadow: inset 3px 0 0 rgba(59, 130, 246, 0.9), 0 2px 10px rgba(59, 130, 246, 0.12);
        }
        .question-pending-card.bookmark-hit {
            animation: bookmarkPulse 1.2s ease;
        }
        @keyframes bookmarkPulse {
            0% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.6), inset 3px 0 0 rgba(59, 130, 246, 0.85); }
            100% { box-shadow: 0 0 0 14px rgba(59, 130, 246, 0), inset 3px 0 0 rgba(59, 130, 246, 0.85); }
        }
        .q-card-top-row {
            padding: 12px 14px;
            cursor: pointer;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .q-card-title-box {
            display: flex;
            gap: 8px;
            font-size: 0.82rem;
            line-height: 1.45;
            align-items: flex-start;
        }
        .q-card-section {
            display: inline-flex;
            align-items: center;
            background: rgba(59, 130, 246, 0.1);
            color: var(--primary-light, #60a5fa);
            border: 1px solid rgba(59, 130, 246, 0.22);
            border-radius: 6px;
            padding: 1px 6px;
            font-size: 0.68rem;
            font-weight: 700;
            white-space: nowrap;
            letter-spacing: 0.2px;
        }
        body.light-theme .q-card-section {
            background: #eff6ff;
            color: #2563eb;
            border-color: #bfdbfe;
        }
        .q-card-text-summary {
            color: var(--text-main);
            font-weight: 500;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            flex: 1;
            min-width: 0;
        }
        .q-card-icon-btn {
            width: 26px;
            height: 26px;
            border-radius: 7px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            background: rgba(255, 255, 255, 0.03);
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            flex: 0 0 auto;
            font-size: 0.82rem;
            line-height: 1;
            transition: all 0.15s ease;
        }
        .q-card-icon-btn:hover {
            border-color: rgba(255, 255, 255, 0.2);
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.07);
        }
        .q-card-bookmark-btn.active {
            color: #60a5fa;
            background: rgba(59, 130, 246, 0.15);
            border-color: rgba(59, 130, 246, 0.5);
        }
        .q-card-question-toggle.open {
            color: #34d399;
            background: rgba(16, 185, 129, 0.14);
            border-color: rgba(16, 185, 129, 0.45);
        }
        .q-card-question-drawer {
            display: none;
            margin: 0 14px 10px;
            padding: 10px 12px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 8px;
            background: rgba(0, 0, 0, 0.25);
            color: var(--text-main);
            font-size: 0.82rem;
            line-height: 1.6;
            white-space: pre-wrap;
        }
        .question-pending-card.question-open .q-card-question-drawer {
            display: block;
        }
        body.light-theme .q-card-question-drawer {
            background: #f8fafc;
            border-color: #e2e8f0;
        }
        .q-card-badge-box {
            display: flex;
            gap: 6px;
            align-items: center;
            flex-wrap: wrap;
        }
        .q-badge {
            display: inline-flex;
            align-items: center;
            gap: 3px;
            font-size: 0.65rem;
            padding: 2px 8px;
            border-radius: 9999px; /* shadcn 标志性微胶囊 */
            font-weight: 600;
            line-height: 1.2;
            letter-spacing: 0.2px;
        }
        .diff-easy { background: rgba(16, 185, 129, 0.12); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.25); }
        .diff-medium { background: rgba(245, 158, 11, 0.12); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.25); }
        .diff-hard { background: rgba(239, 68, 68, 0.12); color: #f87171; border: 1px solid rgba(239, 68, 68, 0.25); }
        .imp-high { background: rgba(239, 68, 68, 0.14); color: #f87171; border: 1px solid rgba(239, 68, 68, 0.35); font-weight: 700; }
        .imp-mid { background: rgba(59, 130, 246, 0.12); color: #60a5fa; border: 1px solid rgba(59, 130, 246, 0.25); }
        .imp-low { background: rgba(255, 255, 255, 0.04); color: var(--text-muted); border: 1px solid rgba(255, 255, 255, 0.08); }
        .stage-badge-num { background: rgba(139, 92, 246, 0.12); color: #c084fc; border: 1px solid rgba(139, 92, 246, 0.25); }
        .overdue-badge { background: rgba(239, 68, 68, 0.18); color: #ef4444; border: 1px solid rgba(239, 68, 68, 0.45); font-weight: 700; }
        
        .q-card-expand-body {
            display: none;
            padding: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            background: rgba(0, 0, 0, 0.2);
        }
        body.light-theme .q-card-expand-body {
            background: #f8fafc;
        }
        .q-card-question-full {
            font-size: 0.8rem;
            color: var(--text-main);
            line-height: 1.45;
            margin-bottom: 10px;
            white-space: pre-wrap;
        }
        .q-card-answer-box {
            margin-bottom: 12px;
        }
        .q-card-answer-box img {
            max-width: 100%;
            border-radius: 6px;
            border: 1px solid var(--border-color);
        }
        .dynamic-crop-container {
            position: relative;
            width: 100%;
            overflow: hidden;
            border-radius: 8px;
            background: #fff;
            border: 1px solid var(--border-color);
        }
        .dynamic-crop-image {
            position: absolute;
            left: 0;
            top: 0;
            display: block;
            max-width: none !important;
            border: 0 !important;
            border-radius: 0 !important;
        }
        .dynamic-crop-stack {
            display: flex;
            flex-direction: column;
            gap: 0;
            width: 100%;
            overflow: hidden;
            border-radius: 8px;
            background: #fff;
        }
        .dynamic-crop-stack .dynamic-crop-segment {
            border: 0;
            border-radius: 0;
            margin: 0;
            box-shadow: none;
        }
        .dynamic-crop-stack.single,
        .dynamic-crop-stack.single .dynamic-crop-segment {
            border-radius: 8px;
        }
        .q-card-actions-row {
            display: flex;
            justify-content: flex-end;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .btn-q-complete {
            background: #10b981;
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #ffffff;
            padding: 5px 14px;
            border-radius: 8px;
            font-size: 0.74rem;
            font-weight: 600;
            cursor: pointer;
            box-shadow: 0 1px 2px rgba(16, 185, 129, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.2);
            transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .btn-q-complete:hover {
            background: #059669;
            box-shadow: 0 3px 8px rgba(16, 185, 129, 0.4);
            transform: translateY(-1px);
        }
        .btn-q-complete:active {
            transform: translateY(0);
        }
        .btn-q-star {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-muted);
            padding: 5px 11px;
            border-radius: 8px;
            font-size: 0.72rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .btn-q-star:hover {
            border-color: rgba(255, 255, 255, 0.22);
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.07);
            transform: translateY(-1px);
        }
        .btn-q-star.active {
            color: #f59e0b;
            border-color: rgba(245, 158, 11, 0.45);
            background: rgba(245, 158, 11, 0.1);
        }
        .btn-q-lecture {
            background: rgba(139, 92, 246, 0.08);
            border: 1px solid rgba(139, 92, 246, 0.25);
            color: #c084fc;
            padding: 5px 11px;
            border-radius: 8px;
            font-size: 0.72rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .btn-q-lecture:hover {
            background: rgba(139, 92, 246, 0.18);
            border-color: #c084fc;
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-q-annotation {
            background: rgba(245, 158, 11, 0.08);
            border: 1px solid rgba(245, 158, 11, 0.25);
            color: #fbbf24;
            padding: 5px 11px;
            border-radius: 8px;
            font-size: 0.72rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .btn-q-annotation:hover {
            background: rgba(245, 158, 11, 0.18);
            border-color: #fbbf24;
            transform: translateY(-1px);
        }
        .btn-q-reset {
            background: transparent;
            border: 1px solid transparent;
            color: var(--text-dark, #64748b);
            padding: 5px 10px;
            border-radius: 8px;
            font-size: 0.72rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .btn-q-reset:hover {
            background: rgba(239, 68, 68, 0.08);
            border-color: rgba(239, 68, 68, 0.25);
            color: #ef4444;
        }
        .btn-q-again {
            background: linear-gradient(135deg, #f59e0b, #d97706);
            border: none;
            color: white;
            padding: 4px 12px;
            border-radius: 6px;
            font-size: 0.72rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
        }
        .btn-q-again:hover {
            filter: brightness(1.1);
        }
        .btn-q-reset {
            background: transparent;
            border: 1px solid rgba(239, 68, 68, 0.3);
            color: #ef4444;
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 0.72rem;
            cursor: pointer;
            transition: all 0.2s;
        }
        .btn-q-reset:hover {
            background: rgba(239, 68, 68, 0.1);
            border-color: #ef4444;
        }
        .btn-q-lecture {
            background: rgba(139, 92, 246, 0.1);
            border: 1px solid rgba(139, 92, 246, 0.3);
            color: #c084fc;
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 0.72rem;
            cursor: pointer;
            transition: all 0.2s;
        }
        .btn-q-lecture:hover {
            background: rgba(139, 92, 246, 0.2);
            border-color: #c084fc;
            color: #fff;
        }
        .btn-q-annotation {
            background: rgba(245, 158, 11, 0.1);
            border: 1px solid rgba(245, 158, 11, 0.35);
            color: #f59e0b;
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 0.72rem;
            cursor: pointer;
            transition: all 0.2s;
            font-weight: 700;
        }
        .btn-q-annotation.has-note {
            background: rgba(245, 158, 11, 0.2);
            color: #fbbf24;
        }
        .q-card-annotation-box,
        .task-annotation-box {
            margin: 8px 0;
            padding: 9px 11px;
            border-left: 3px solid #f59e0b;
            border-radius: 6px;
            background: rgba(245, 158, 11, 0.08);
            color: var(--text-main);
            font-size: 0.78rem;
            line-height: 1.55;
            white-space: pre-wrap;
            max-height: 3.4em;
            overflow: hidden;
        }
        .home-annotation-mask {
            position: fixed;
            inset: 0;
            z-index: 12000;
            display: none;
            align-items: center;
            justify-content: center;
            padding: 18px;
            background: rgba(15, 23, 42, 0.72);
            backdrop-filter: blur(6px);
        }
        .home-annotation-modal {
            width: min(680px, 96vw);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            background: var(--bg-panel);
            box-shadow: 0 22px 70px rgba(0, 0, 0, 0.45);
            overflow: hidden;
        }
        .home-annotation-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 13px 16px;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-main);
            font-weight: 800;
        }
        .home-annotation-modal textarea {
            width: 100%;
            min-height: 220px;
            resize: vertical;
            border: 0;
            outline: none;
            padding: 14px 16px;
            box-sizing: border-box;
            background: var(--bg-panel-hover);
            color: var(--text-main);
            font-size: 0.95rem;
            line-height: 1.65;
        }
        .home-annotation-actions {
            display: flex;
            justify-content: flex-end;
            gap: 10px;
            padding: 12px 16px;
            border-top: 1px solid var(--border-color);
        }
        .home-annotation-actions button {
            border: 1px solid var(--border-color);
            border-radius: 7px;
            padding: 8px 14px;
            background: var(--bg-panel-hover);
            color: var(--text-main);
            cursor: pointer;
            font-weight: 800;
        }
        .home-annotation-actions .primary {
            background: #2563eb;
            border-color: #2563eb;
            color: #fff;
        }
        .bookmark-modal-list {
            max-height: min(58vh, 460px);
            overflow: auto;
            padding: 10px;
        }
        .bookmark-modal-item {
            width: 100%;
            border: 1px solid var(--border-color);
            border-radius: 7px;
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-main);
            padding: 10px 11px;
            margin-bottom: 8px;
            text-align: left;
            cursor: pointer;
        }
        .bookmark-modal-item:hover {
            border-color: rgba(59, 130, 246, 0.55);
            background: rgba(59, 130, 246, 0.12);
        }
        .bookmark-modal-item-title {
            font-size: 0.8rem;
            font-weight: 800;
            margin-bottom: 4px;
        }
        .bookmark-modal-item-text {
            font-size: 0.74rem;
            color: var(--text-muted);
            line-height: 1.45;
        }
        body.light-theme .bookmark-modal-item {
            background: #f8fafc;
        }
        @media (max-width: 768px), (orientation: portrait) and (max-width: 1200px) {
            .panel-heading-actions {
                gap: 6px;
            }
            .q-card-title-box {
                gap: 5px;
            }
            .q-card-section {
                max-width: 42%;
                overflow: hidden;
                text-overflow: ellipsis;
            }
            .q-card-icon-btn {
                width: 24px;
                height: 24px;
                font-size: 0.78rem;
            }
            .q-card-question-drawer {
                margin-left: 10px;
                margin-right: 10px;
                font-size: 0.8rem;
            }
        }
        
        /* 章节名链接与重置按钮样式 */
        .chapter-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .chapter-name-link {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--text-main);
            text-decoration: none;
            flex-grow: 1;
            overflow: hidden;
            font-size: 0.75rem;
        }
        .chapter-name-link:hover .chapter-name-text {
            color: var(--primary-light);
            text-decoration: underline;
        }
        body.light-theme .chapter-name-link:hover .chapter-name-text {
            color: #2563eb;
        }
        .chapter-name-text {
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .chapter-progress-text-small {
            font-size: 0.65rem;
            color: var(--text-muted);
            white-space: nowrap;
        }
        .chapter-actions {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .due-today-badge-dot {
            width: 6px;
            height: 6px;
            background: #ef4444;
            border-radius: 50%;
            box-shadow: 0 0 6px #ef4444;
        }
        .btn-reset-chapter {
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 0.75rem;
            padding: 2px;
            opacity: 0.5;
            transition: opacity 0.2s;
        }
        .btn-reset-chapter:hover {
            opacity: 1;
        }
        
        /* 右栏题级预览项目 */
        .schedule-task-item-q {
            background: var(--bg-page);
            border: 1px solid var(--border-color);
            border-radius: 6px;
            margin-bottom: 6px;
            overflow: hidden;
            transition: all 0.2s;
        }
        .schedule-task-item-q:hover {
            border-color: var(--border-hover);
        }
        .task-q-header {
            padding: 8px 10px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 0.72rem;
        }
        .task-q-body {
            display: none;
            padding: 10px;
            border-top: 1px solid var(--border-color);
            background: rgba(0, 0, 0, 0.1);
        }
        body.light-theme .task-q-body {
            background: #f8fafc;
        }
        .schedule-task-item-q.expanded .task-q-body {
            display: block;
        }
        .q-text-lbl {
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .q-answer-box img {
            max-width: 100%;
            border-radius: 4px;
            border: 1px solid var(--border-color);
            margin-top: 4px;
        }

        /* ==================== 响应式自适应样式 (Responsive Styles) ==================== */
        
        /* 移动端底部 Tab 栏默认隐藏 */
        .mobile-tabs {
            display: none;
        }
        .mobile-exit-focus-btn,
        .mobile-focus-top-btn {
            display: none;
        }

        /* 讲义灯箱弹窗样式重构 */
        
        .lecture-modal-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 20px;
            background: #0f172a !important;
            border-bottom: 1px solid rgba(255,255,255,0.12) !important;
            flex-shrink: 0;
            gap: 12px;
        }
        .lecture-modal-page-num, #home-lecture-page-num {
            color: #ffffff !important;
            font-weight: 700 !important;
            font-size: 0.9rem !important;
            letter-spacing: 0.5px !important;
            text-shadow: 0 1px 2px rgba(0,0,0,0.6) !important;
            display: inline-flex !important;
            align-items: center !important;
        }
        .lecture-modal-btn {
            background: rgba(255,255,255,0.1) !important;
            color: #ffffff !important;
            border: 1px solid rgba(255,255,255,0.2) !important;
            padding: 6px 14px !important;
            border-radius: 6px !important;
            cursor: pointer !important;
            font-size: 0.8rem !important;
            font-weight: 600 !important;
            transition: all 0.15s ease !important;
        }
        .lecture-modal-btn:hover {
            background: rgba(255,255,255,0.2) !important;
            border-color: rgba(255,255,255,0.35) !important;
        }

        .lecture-modal-close-btn {
            background: rgba(239, 68, 68, 0.2);
            color: #f87171;
            border: 1px solid rgba(239, 68, 68, 0.3);
            padding: 6px 14px;
            border-radius: 6px;
            cursor: pointer;
            font-size: 0.85rem;
            font-weight: 600;
            white-space: nowrap;
        }

        /* 平板尺寸自适应 (768px - 1200px) */
        @media (min-width: 769px) and (max-width: 1200px) {
            .app-layout {
                grid-template-columns: 260px 1fr 310px;
                gap: 12px;
            }
            .workspace-panel {
                padding: 12px;
            }
            .time-machine-bar {
                padding: 8px 12px;
                font-size: 0.75rem;
            }
        }

        
        /* ==================== 移动端 (手机竖屏 <= 768px) 极致轻量化与滑动体验 ==================== */
        @media (max-width: 768px), (orientation: portrait) and (max-width: 1200px) {
            html, body {
                height: 100% !important;
                min-height: 100% !important;
                overflow: hidden !important;
            }

            body {
                padding: 4px 6px 0 6px !important;
                display: flex !important;
                flex-direction: column !important;
            }

            /* 1. 顶部 Header 移动端响应式重构：自适应分层，彻底杜绝按钮挤扁竖排 */
            body > header {
                flex-direction: column !important;
                align-items: stretch !important;
                justify-content: flex-start !important;
                padding: 6px 8px 8px 8px !important;
                margin-bottom: 4px !important;
                max-height: none !important;
                gap: 6px !important;
            }
            .header-title-area {
                display: flex !important;
                align-items: center !important;
                justify-content: space-between !important;
                width: 100% !important;
            }
            .header-title-area h1 {
                font-size: 1.05rem !important;
                line-height: 1.2 !important;
            }
            .header-title-area p {
                display: none !important;
            }
            .header-meta {
                width: 100% !important;
                display: flex !important;
                align-items: center !important;
                gap: 6px !important;
                flex-wrap: nowrap !important;
                overflow-x: auto !important;
                -webkit-overflow-scrolling: touch !important;
                scrollbar-width: none !important;
                padding-bottom: 2px !important;
            }
            .header-meta::-webkit-scrollbar {
                display: none !important;
            }
            .header-meta .theme-switch-btn,
            .header-meta .cloud-sync-btn,
            .header-meta .skin-picker button {
                white-space: nowrap !important;
                flex-shrink: 0 !important;
                padding: 4px 10px !important;
                font-size: 0.72rem !important;
                line-height: 1.2 !important;
                height: 28px !important;
                box-sizing: border-box !important;
            }

            /* 2. 模拟时间机器：默认收纳为一行极简微条 (点击展开/收起) */
            .time-machine-bar {
                padding: 3px 8px !important;
                margin-bottom: 4px !important;
                border-radius: 8px !important;
                font-size: 0.68rem !important;
                display: flex !important;
                flex-direction: row !important;
                align-items: center !important;
                justify-content: space-between !important;
                gap: 6px !important;
                background: color-mix(in srgb, var(--primary) 6%, var(--bg-panel-hover)) !important;
            }
            .time-machine-controls {
                display: none !important; /* 默认折叠收纳 */
                width: 100% !important;
                justify-content: space-between !important;
                gap: 4px !important;
                margin-top: 4px !important;
            }
            .time-machine-bar.expanded .time-machine-controls {
                display: flex !important; /* 展开时呈现 */
            }
            .time-machine-bar.expanded {
                flex-direction: column !important;
                align-items: stretch !important;
            }
            .time-machine-toggle-btn {
                display: inline-flex !important;
                align-items: center;
                gap: 2px;
                padding: 2px 6px;
                border-radius: 4px;
                border: 1px solid var(--border-color);
                background: var(--bg-panel-hover);
                color: var(--primary);
                font-size: 0.65rem;
                font-weight: 700;
                cursor: pointer;
            }

            /* 3. 中间栏：单层滚动架构 (彻底根治向下滑不动的 Bug) */
            .app-layout {
                flex: 1 1 0% !important;
                min-height: 0 !important;
                height: 100% !important;
                position: relative !important;
                overflow: hidden !important;
                display: flex !important;
                flex-direction: column !important;
            }
            .app-layout > .workspace-panel {
                flex: 1 1 0% !important;
                min-height: 0 !important;
                height: 100% !important;
                overflow-y: auto !important;
                -webkit-overflow-scrolling: touch !important;
                touch-action: pan-y !important;
                padding: 6px 6px 85px 6px !important; /* 留出底部Tab栏 */
                box-sizing: border-box !important;
            }

            /* 移除中间列表的二级滚动，让整个 workspace 统一惯性滚动 */
            .pending-workspace .pending-list-scroll {
                overflow: visible !important;
                height: auto !important;
                max-height: none !important;
                padding: 0 !important;
            }

            /* 4. 数据概览栏：手机端转为紧凑微胶囊行 (从 75px 压缩到 28px) */
            .today-summary-bar {
                display: flex !important;
                flex-direction: row !important;
                align-items: center !important;
                justify-content: space-between !important;
                gap: 4px !important;
                padding: 4px 8px !important;
                margin: 4px 0 6px 0 !important;
                border-radius: 8px !important;
                background: var(--bg-panel-hover) !important;
            }
            .summary-stat-item {
                flex: 1 !important;
                display: flex !important;
                flex-direction: row !important;
                align-items: center !important;
                justify-content: center !important;
                gap: 4px !important;
                padding: 2px 4px !important;
            }
            .summary-stat-item .stat-lbl {
                font-size: 0.65rem !important;
            }
            .summary-stat-item .stat-val {
                font-size: 0.82rem !important;
                font-weight: 800 !important;
            }

            /* 5. 专注模式手机端 100% 满屏沉浸 */
            body.focus-mode header,
            body.focus-mode .time-machine-bar,
            body.focus-mode .mobile-tabs,
            body.focus-mode .panel-heading,
            body.focus-mode .middle-review-tab-bar,
            body.focus-mode .today-summary-bar {
                display: none !important;
            }
            body.focus-mode .app-layout > .workspace-panel {
                padding: 6px 6px 20px 6px !important;
            }
        }

        /* 手机端尺寸自适应 (<= 768px) */
        @media (max-width: 768px), (orientation: portrait) and (max-width: 1200px) {
            html {
                height: 100%;
                min-height: 100vh;
                min-height: 100dvh;
            }

            body {
                padding: 8px 8px 0 8px;
                height: 100vh;
                height: 100dvh;
                min-height: 100vh;
                min-height: 100dvh;
                overflow: hidden;
                display: flex;
                flex-direction: column;
                transition: padding 0.25s ease;
            }
            
            body > header {
                flex-direction: column;
                align-items: stretch !important;
                gap: 10px;
                padding: 4px 8px 12px 8px;
                transition: max-height 0.25s ease, padding 0.25s ease, margin 0.25s ease, opacity 0.25s ease, border 0.25s ease;
                max-height: 250px;
                overflow: hidden;
            }
            body.header-collapsed > header {
                max-height: 0 !important;
                padding-top: 0 !important;
                padding-bottom: 0 !important;
                margin-bottom: 0 !important;
                opacity: 0 !important;
                border-bottom: none !important;
                pointer-events: none;
            }
            .header-title-area h1 {
                font-size: 1.1rem;
            }
            .header-meta {
                justify-content: space-between;
                width: 100%;
                flex-wrap: wrap;
            }
            
            .time-machine-bar {
                flex-direction: column;
                align-items: stretch !important;
                gap: 8px;
                padding: 8px 12px;
            }
            .time-machine-controls {
                justify-content: space-between;
            }
            
            /* 主布局在移动端/竖屏下转为 Flex 相对定位容器 (彻底锁定视口可见高度) */
            .app-layout {
                display: flex !important;
                flex-direction: column !important;
                grid-template-columns: 1fr !important;
                gap: 0;
                flex: 1 1 0% !important;
                min-height: 0 !important;
                height: 100% !important;
                position: relative !important;
                overflow: hidden !important;
            }
            
            /* 手机/竖屏端隐藏非当前激活的面板 */
            .app-layout > .workspace-panel {
                display: none !important;
                flex: 1 1 0% !important;
                min-height: 0 !important;
                height: 100% !important;
                max-height: 100% !important;
                padding-bottom: 90px; /* 留出底部 Tab 栏空间 */
                overflow-y: auto !important;
                -webkit-overflow-scrolling: touch !important;
                touch-action: pan-y !important;
                overscroll-behavior-y: auto !important;
                box-sizing: border-box !important;
            }
            
            /* 移动端专注模式适配 */
            body.focus-mode > header {
                display: none !important;
            }
            body.focus-mode .time-machine-bar {
                display: none !important;
            }
            body.focus-mode .mobile-tabs {
                display: none !important;
            }
            body.focus-mode {
                padding: 0 !important;
            }
            body.focus-mode .app-layout > .workspace-panel {
                padding-bottom: 20px !important;
                height: 100vh !important;
            }

            body.focus-mode .pending-workspace {
                gap: 0 !important;
                padding: 8px !important;
            }

            body.focus-mode .pending-workspace .panel-heading,
            body.focus-mode .pending-workspace .today-summary-bar {
                display: none !important;
            }

            body.focus-mode .pending-workspace .pending-list-scroll {
                flex: 1 1 auto;
                min-height: 0;
                height: 100%;
                padding-right: 0;
                padding-bottom: 132px !important;
                scroll-padding-bottom: 150px;
            }
            
            /* 专注模式下中间栏头部和数据栏自动折叠 */
            .pending-workspace .panel-heading,
            .pending-workspace .today-summary-bar {
                transition: max-height 0.25s ease, padding 0.25s ease, margin 0.25s ease, opacity 0.25s ease, border 0.25s ease;
            }
            .pending-workspace.collapsed .panel-heading {
                max-height: 0 !important;
                padding-top: 0 !important;
                padding-bottom: 0 !important;
                margin-top: 0 !important;
                margin-bottom: 0 !important;
                opacity: 0 !important;
                border: none !important;
                overflow: hidden !important;
                pointer-events: none;
            }
            .pending-workspace.collapsed .today-summary-bar {
                max-height: 0 !important;
                padding-top: 0 !important;
                padding-bottom: 0 !important;
                margin-top: 0 !important;
                margin-bottom: 0 !important;
                opacity: 0 !important;
                border: none !important;
                overflow: hidden !important;
                pointer-events: none;
            }
            
            /* 移动端浮动退出专注按钮 */
            .mobile-exit-focus-btn,
            .mobile-focus-top-btn {
                display: none;
            }
            body.focus-mode .mobile-exit-focus-btn,
            body.focus-mode .mobile-focus-top-btn {
                display: flex;
                position: fixed;
                right: 24px;
                z-index: 10000;
                background: rgba(30, 41, 59, 0.85);
                color: #f8fafc;
                border: 1px solid rgba(255, 255, 255, 0.15);
                padding: 10px 18px;
                border-radius: 9999px;
                font-size: 0.82rem;
                font-weight: 600;
                align-items: center;
                gap: 6px;
                backdrop-filter: blur(8px);
                box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
                cursor: pointer;
                transition: transform 0.2s, background-color 0.2s;
            }
            body.focus-mode .mobile-exit-focus-btn {
                bottom: 24px;
            }
            body.focus-mode .mobile-focus-top-btn {
                bottom: 76px;
                width: 42px;
                height: 42px;
                padding: 0;
                justify-content: center;
                font-size: 1.05rem;
            }
            body.focus-mode .mobile-exit-focus-btn:active,
            body.focus-mode .mobile-focus-top-btn:active {
                transform: scale(0.95);
                background: rgba(15, 23, 42, 0.95);
            }
            body.light-theme.focus-mode .mobile-exit-focus-btn,
            body.light-theme.focus-mode .mobile-focus-top-btn {
                background: rgba(255, 255, 255, 0.9);
                color: #0f172a;
                border: 1px solid rgba(0, 0, 0, 0.1);
                box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            }
            
            /* 激活的面板显示 */
            .app-layout.mobile-tab-tasks > .pending-workspace {
                display: flex !important;
            }
            /* 移动端/竖屏端目录页：固定滚动视口，避免内容撑高父容器后无法触摸滚动 */
            .app-layout.mobile-tab-directory > .subject-scroller {
                display: block !important;
                position: absolute !important;
                top: 0 !important;
                bottom: 0 !important;
                left: 0 !important;
                right: 0 !important;
                width: 100% !important;
                height: auto !important;
                overflow-y: auto !important;
                -webkit-overflow-scrolling: touch !important;
                touch-action: pan-y !important;
                overscroll-behavior-y: auto !important;
                padding-bottom: 160px !important;
                box-sizing: border-box !important;
            }
            .app-layout.mobile-tab-directory .subject-stack {
                flex: 0 0 auto !important;
                width: 100%;
                padding-bottom: 0px !important;
            }
            .app-layout.mobile-tab-directory .he5500-section {
                flex: 0 0 auto !important;
                margin-top: 14px !important;
                margin-bottom: 24px !important;
            }
            .app-layout.mobile-tab-tasks > .pending-workspace {
                padding-bottom: 100px !important;
            }
            .app-layout.mobile-tab-calendar > .calendar-panel {
                padding-bottom: 120px !important;
            }
            .app-layout.mobile-tab-calendar > .calendar-panel {
                display: flex !important;
                min-height: 0;
                overflow-y: auto !important;
                -webkit-overflow-scrolling: touch;
                overscroll-behavior: contain;
                padding-bottom: calc(178px + env(safe-area-inset-bottom, 0px)) !important;
                scroll-padding-bottom: calc(196px + env(safe-area-inset-bottom, 0px));
            }
            .app-layout.mobile-tab-calendar .review-dashboard-section:last-of-type {
                margin-bottom: calc(48px + env(safe-area-inset-bottom, 0px));
            }

            body.header-collapsed .app-layout.mobile-tab-directory > .subject-scroller {
                padding-bottom: 140px !important;
            }

            /* 移动端底部 Tab 栏展示 */
            /* 移动端底部 Tab 栏展示 (现代 Floating Dock 质感) */
            .mobile-tabs {
                display: flex !important;
                position: fixed;
                bottom: 0;
                left: 0;
                right: 0;
                height: 58px;
                background: rgba(16, 19, 30, 0.92);
                border-top: 1px solid rgba(255, 255, 255, 0.08);
                box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.35);
                z-index: 9999;
                justify-content: space-around;
                align-items: center;
                padding: 0 12px;
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
            }
            .mobile-tab {
                flex: 1;
                display: flex;
                flex-direction: column;
                align-items: center;
                justify-content: center;
                color: var(--text-muted);
                font-size: 0.72rem;
                font-weight: 600;
                cursor: pointer;
                height: 100%;
                gap: 3px;
                transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
                user-select: none;
            }
            .mobile-tab:active {
                transform: scale(0.92);
            }
            .mobile-tab-icon {
                font-size: 1.15rem;
                line-height: 1;
            }
            .mobile-tab.active {
                color: #60a5fa;
                font-weight: 800;
            }
            body.light-theme .mobile-tabs {
                background: rgba(255, 255, 255, 0.94);
                border-top-color: #e2e8f0;
                box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.06);
            }
            body.light-theme .mobile-tab.active {
                color: #2563eb;
            }
            
            /* 讲义弹窗移动端头部优化 */
            .lecture-modal-header {
                padding: 10px;
                flex-direction: column-reverse;
                align-items: stretch;
                gap: 8px;
            }
            .lecture-modal-btn-group {
                justify-content: space-between;
                width: 100%;
            }
            .lecture-modal-zoom-btn {
                display: none !important; /* 手机上隐藏缩放，直接手势/双击放大 */
            }
            .lecture-modal-close-btn {
                width: 100%;
                text-align: center;
                padding: 8px 0;
            }
            
            /* 卡片按钮适配 */
            .q-card-actions-row {
                flex-wrap: wrap;
                gap: 8px;
            }
            .q-card-actions-row button {
                flex: 1;
                min-width: 100px;
                text-align: center;
                justify-content: center;
            }
            .skin-picker {
                position: static;
            }
            .skin-menu {
                position: fixed;
                top: auto;
                right: 10px;
                left: 10px;
                bottom: 72px;
                width: auto;
                max-height: min(55vh, 360px);
                overflow-y: auto;
            }
        }

    
        /* ==================== 1. 全局快搜 (Raycast 旗舰级极客风格) ==================== */
        .global-search-trigger {
            margin: 4px 4px 12px 4px;
            padding: 9px 14px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            cursor: pointer;
            transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
            user-select: none;
        }
        .global-search-trigger:hover {
            border-color: rgba(59, 130, 246, 0.5);
            background: rgba(255, 255, 255, 0.05);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(59, 130, 246, 0.15);
        }
        .global-search-trigger:active {
            transform: scale(0.98);
        }
        body.light-theme .global-search-trigger {
            background: #ffffff;
            border-color: #e2e8f0;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
        }
        body.light-theme .global-search-trigger:hover {
            border-color: #93c5fd;
            background: #f8fafc;
        }
        .search-trigger-left {
            display: flex;
            align-items: center;
            gap: 9px;
            color: var(--text-muted);
            font-size: 0.8rem;
            font-weight: 500;
        }
        .search-trigger-kbd {
            font-size: 0.65rem;
            font-weight: 700;
            padding: 2px 7px;
            border-radius: 6px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-muted);
            font-family: 'JetBrains Mono', monospace;
        }

        /* 全局快搜模态弹窗 */
        .global-search-backdrop {
            position: fixed;
            inset: 0;
            z-index: 99999;
            background: rgba(0, 0, 0, 0.65);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            display: none;
            align-items: flex-start;
            justify-content: center;
            padding: 60px 16px 20px 16px;
        }
        .global-search-backdrop.show {
            display: flex;
        }
        .global-search-backdrop {
            position: fixed;
            inset: 0;
            z-index: 1000000; /* 最高层级 */
            background: rgba(0, 0, 0, 0.72);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            display: none;
            align-items: flex-start;
            justify-content: center;
            padding: 24px 14px 20px 14px;
            box-sizing: border-box;
        }
        .global-search-backdrop.show {
            display: flex;
        }
        .global-search-modal {
            width: min(720px, 96vw);
            max-height: 85vh;
            background: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            display: flex;
            flex-direction: column;
            overflow: hidden;
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
            animation: searchModalSlide 0.2s cubic-bezier(0.16, 1, 0.3, 1);
        }
        @keyframes searchModalSlide {
            from { opacity: 0; transform: translateY(-16px) scale(0.98); }
            to { opacity: 1; transform: translateY(0) scale(1); }
        }
        .global-search-header {
            padding: 12px 18px;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 12px;
            background: color-mix(in srgb, var(--primary) 5%, var(--bg-panel));
            flex-shrink: 0;
            min-height: 52px;
            box-sizing: border-box;
        }
        .search-icon-big {
            font-size: 1.2rem;
            color: var(--primary);
            flex-shrink: 0;
        }
        .global-search-input {
            flex: 1;
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-main);
            font-size: 16px; /* 防止 iOS 自动缩放 */
            font-weight: 600;
            padding: 4px 0;
        }
        .global-search-input::placeholder {
            color: var(--text-muted);
            font-size: 0.95rem;
            font-weight: 400;
        }
        .global-search-close-btn {
            background: transparent;
            border: none;
            color: var(--text-muted);
            font-size: 1.3rem;
            cursor: pointer;
            padding: 0 4px;
            border-radius: 6px;
            transition: color 0.2s;
        }
        .global-search-close-btn:hover {
            color: var(--text-main);
        }
        .global-search-filter-bar {
            padding: 10px 16px;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 8px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            background: var(--bg-panel-hover);
            flex-shrink: 0;
            min-height: 48px;
            box-sizing: border-box;
        }
        .global-search-filter-bar::-webkit-scrollbar {
            height: 4px;
        }
        .search-filter-chip {
            padding: 5px 12px;
            border-radius: 999px;
            font-size: 0.76rem;
            font-weight: 700;
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-muted);
            cursor: pointer;
            white-space: nowrap;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all 0.2s;
        }
        .search-filter-chip.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #ffffff !important;
            box-shadow: 0 2px 8px var(--primary-glow);
        }
        .global-search-body {
            flex: 1 1 auto;
            overflow-y: auto;
            -webkit-overflow-scrolling: touch;
            padding: 12px 16px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            min-height: 180px;
        }
        .search-result-item {
            padding: 12px 14px;
            border-radius: 10px;
            background: var(--bg-panel-hover);
            border: 1px solid var(--border-color);
            cursor: pointer;
            transition: all 0.2s;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .search-result-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-hover);
            transform: translateX(2px);
        }
        .search-res-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
        }
        .search-res-badge {
            font-size: 0.68rem;
            font-weight: 800;
            padding: 2px 7px;
            border-radius: 6px;
        }
        .badge-note { background: rgba(245, 158, 11, 0.15); color: #f59e0b; border: 1px solid rgba(245, 158, 11, 0.3); }
        .badge-mne { background: rgba(56, 189, 248, 0.15); color: #38bdf8; border: 1px solid rgba(56, 189, 248, 0.3); }
        .badge-exam { background: rgba(59, 130, 246, 0.15); color: #60a5fa; border: 1px solid rgba(59, 130, 246, 0.3); }
        .badge-study { background: rgba(16, 185, 129, 0.15); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.3); }
        .badge-he { background: rgba(168, 85, 247, 0.15); color: #c084fc; border: 1px solid rgba(168, 85, 247, 0.3); }
        .badge-xiaoliang { background: rgba(245, 158, 11, 0.15); color: #f59e0b; border: 1px solid rgba(245, 158, 11, 0.3); }
        .search-res-meta {
            font-size: 0.72rem;
            color: var(--text-muted);
        }
        .search-res-title {
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.45;
        }
        .search-res-snippet {
            font-size: 0.78rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .search-highlight {
            color: var(--primary-light);
            background: color-mix(in srgb, var(--primary) 18%, transparent);
            padding: 1px 3px;
            border-radius: 3px;
            font-weight: 700;
        }
        .search-highlight-note {
            color: #fbbf24;
            background: rgba(245, 158, 11, 0.22);
            padding: 1px 4px;
            border-radius: 3px;
            font-weight: 700;
        }
        .global-search-footer {
            padding: 10px 18px;
            border-top: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: flex-end;
            background: var(--bg-panel-hover);
            font-size: 0.72rem;
            color: var(--text-muted);
        }

        
        /* ==================== 2. 医考初试倒计时卡片 (无Emoji · 动态时分秒) ==================== */
        /* ==================== 2. 医考初试倒计时卡片 (现代化精工仪表盘) ==================== */
        .exam-countdown-banner {
            margin: 4px 4px 14px 4px;
            padding: 13px 15px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.12) 0%, rgba(16, 21, 35, 0.9) 100%);
            border: 1px solid rgba(59, 130, 246, 0.28);
            display: flex;
            flex-direction: column;
            gap: 8px;
            box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.08);
            transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .exam-countdown-banner:hover {
            border-color: rgba(59, 130, 246, 0.45);
            box-shadow: 0 6px 24px -2px rgba(0, 0, 0, 0.5), 0 0 16px rgba(59, 130, 246, 0.15);
        }
        body.light-theme .exam-countdown-banner {
            background: linear-gradient(135deg, #eff6ff 0%, #ffffff 100%);
            border-color: #bfdbfe;
            box-shadow: 0 2px 10px rgba(59, 130, 246, 0.08);
        }
        .countdown-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .countdown-title-badge {
            font-size: 0.75rem;
            font-weight: 800;
            color: var(--primary-light);
            display: flex;
            align-items: center;
            gap: 6px;
            letter-spacing: 0.02em;
        }
        body.light-theme .countdown-title-badge {
            color: #2563eb;
        }
        .countdown-target-date {
            font-size: 0.68rem;
            font-weight: 600;
            color: var(--text-muted);
            font-family: 'JetBrains Mono', monospace;
            padding: 1px 6px;
            border-radius: 4px;
            background: rgba(0, 0, 0, 0.2);
        }
        body.light-theme .countdown-target-date {
            background: rgba(0, 0, 0, 0.04);
        }
        .countdown-main-timer {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            gap: 8px;
            padding: 2px 0;
        }
        .countdown-days-wrap {
            display: flex;
            align-items: baseline;
            gap: 5px;
        }
        .countdown-prefix-text {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--text-muted);
        }
        .countdown-days-num {
            font-size: 2.1rem;
            font-weight: 900;
            color: #ffffff;
            font-family: 'JetBrains Mono', monospace;
            letter-spacing: -0.03em;
            line-height: 1;
            text-shadow: 0 0 20px rgba(59, 130, 246, 0.4);
        }
        body.light-theme .countdown-days-num {
            color: #0f172a;
            text-shadow: none;
        }
        .countdown-days-unit {
            font-size: 0.85rem;
            font-weight: 800;
            color: var(--primary-light);
        }
        body.light-theme .countdown-days-unit {
            color: #2563eb;
        }
        .countdown-sub-hms {
            display: flex;
            align-items: center;
            gap: 3px;
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--text-main);
            background: rgba(0, 0, 0, 0.4);
            padding: 4px 10px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.3);
        }
        body.light-theme .countdown-sub-hms {
            background: #ffffff;
            border-color: #cbd5e1;
            box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.04);
        }
        .countdown-hms-num {
            color: #60a5fa;
            font-weight: 800;
        }
        body.light-theme .countdown-hms-num {
            color: #2563eb;
        }
        .countdown-quote {
            font-size: 0.68rem;
            color: var(--text-muted);
            line-height: 1.4;
            display: flex;
            align-items: center;
            gap: 5px;
        }
/* ==================== 4. 真题榜 6 级动态热力色彩 ==================== */
        .real-exam-rank-code.heat-unattempted {
            background: rgba(59, 130, 246, 0.12);
            color: #60a5fa;
            border: 1px solid rgba(59, 130, 246, 0.3);
        }
        .real-exam-rank-code.heat-critical {
            background: rgba(239, 68, 68, 0.18);
            color: #f87171;
            border: 1px solid rgba(239, 68, 68, 0.45);
        }
        .real-exam-rank-code.heat-warning {
            background: rgba(249, 115, 22, 0.18);
            color: #fb923c;
            border: 1px solid rgba(249, 115, 22, 0.45);
        }
        .real-exam-rank-code.heat-moderate {
            background: rgba(234, 179, 8, 0.18);
            color: #fde047;
            border: 1px solid rgba(234, 179, 8, 0.45);
        }
        .real-exam-rank-code.heat-proficient {
            background: rgba(16, 185, 129, 0.18);
            color: #34d399;
            border: 1px solid rgba(16, 185, 129, 0.45);
        }
        .real-exam-rank-code.heat-mastered {
            background: rgba(5, 150, 105, 0.28);
            color: #6ee7b7;
            border: 1.5px solid rgba(16, 185, 129, 0.6);
            box-shadow: 0 0 8px rgba(16, 185, 129, 0.25);
        }

    
        /* 时间机器展开/收起样式 */
        .time-machine-toggle-btn {
            display: none;
            align-items: center;
            gap: 2px;
            padding: 3px 8px;
            border-radius: 6px;
            border: 1px solid var(--border-color);
            background: var(--bg-panel-hover);
            color: var(--primary);
            font-size: 0.72rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .time-machine-toggle-btn:hover {
            background: var(--bg-card-hover);
            border-color: var(--primary);
        }

        @media (max-width: 768px), (orientation: portrait) and (max-width: 1200px) {
            .time-machine-toggle-btn {
                display: inline-flex !important;
            }
            .time-machine-bar {
                padding: 4px 10px !important;
                margin-bottom: 6px !important;
                border-radius: 10px !important;
                font-size: 0.72rem !important;
                display: flex !important;
                flex-direction: column !important;
                align-items: stretch !important;
                gap: 6px !important;
                background: color-mix(in srgb, var(--primary) 6%, var(--bg-panel-hover)) !important;
            }
            .time-machine-bar .time-machine-controls {
                display: none !important; /* 移动端默认折叠 */
                width: 100% !important;
                flex-direction: row !important;
                justify-content: space-between !important;
                gap: 4px !important;
                padding-top: 4px !important;
                border-top: 1px dashed var(--border-color) !important;
            }
            .time-machine-bar.expanded .time-machine-controls {
                display: flex !important; /* 展开时呈现 */
            }
            .time-machine-controls .time-btn {
                flex: 1 !important;
                padding: 5px 2px !important;
                font-size: 0.68rem !important;
                text-align: center !important;
            }
        }

    
        .interactive-cloze-layer {
            position: absolute !important;
            inset: 0 !important;
            pointer-events: auto !important;
            z-index: 25 !important;
        }
        .interactive-cloze-box {
            position: absolute !important;
            background: #f59e0b !important;
            opacity: 1 !important;
            border: 1px solid #d97706 !important;
            border-radius: 3px !important;
            cursor: pointer !important;
            pointer-events: auto !important;
            z-index: 30 !important;
            box-shadow: 0 1px 4px rgba(0,0,0,0.2) !important;
            transition: opacity 0.15s ease !important;
            box-sizing: border-box !important;
        }
        .interactive-cloze-box:hover {
            filter: brightness(1.08) !important;
            box-shadow: 0 0 8px rgba(245, 158, 11, 0.8) !important;
        }
        .interactive-cloze-box.revealed {
            opacity: 0 !important;
            border-color: transparent !important;
            box-shadow: none !important;
            pointer-events: auto !important;
        }

    
/* ==================== 极速丝滑性能加速引擎 (GPU+0延迟) ==================== */
html, body, button, a, input, select, textarea, 
.nav-item, .qa-card, .modal-btn, .action-btn, .chapter-item, 
.mm-sub-tab, .mm-tool-btn, .tab-btn, .home-tab-btn, .lecture-modal-btn {
    touch-action: manipulation !important;
    -webkit-tap-highlight-color: transparent !important;
}

.modal, .lecture-modal, #home-lecture-modal, #home-mindmap-modal,
.modal-content-wrapper, .mm-canvas-container, .mm-image-wrapper,
.sidebar, .mm-sidebar, .app-layout {
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

@media (max-width: 1024px) {
    /* 移动端与平板降载：移除极度消耗显存的实时模糊，替换为高性能高质感纯色背景 */
    .sidebar, .mm-sidebar, .lecture-modal-header, .modal-header,
    .mm-top-toolbar, .mm-audio-player-bar, .home-top-nav, .search-container {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }
}

/* ==================== 今日温故知识总览看板 & 大纲视图 ==================== */
.review-overview-card {
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.65), rgba(15, 23, 42, 0.85));
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 10px 12px;
    margin-bottom: 12px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}
body.light-theme .review-overview-card {
    background: linear-gradient(145deg, #ffffff, #f1f5f9);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.overview-top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 1px dashed var(--border-color);
}
.overview-title-wrap {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
    font-weight: 800;
    color: var(--text-main);
}
.overview-title-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 6px;
    background: rgba(59, 130, 246, 0.18);
    color: #60a5fa;
}

/* 树状总览地图胶囊容器 */
.overview-tree-body {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.overview-subject-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.overview-subject-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--text-main);
}
.overview-subject-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}
.overview-chapters-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding-left: 12px;
}
.overview-chapter-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 3px 7px;
    font-size: 0.68rem;
    color: var(--text-main);
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
}
body.light-theme .overview-chapter-pill {
    background: #ffffff;
}
.overview-chapter-pill:hover {
    border-color: var(--primary);
    background: rgba(59, 130, 246, 0.12);
    color: var(--primary);
}
.overview-chapter-count {
    background: rgba(59, 130, 246, 0.2);
    color: #60a5fa;
    border-radius: 999px;
    padding: 0 5px;
    font-size: 0.62rem;
    font-weight: 800;
    font-family: 'JetBrains Mono', monospace;
}

/* 题卡列表中的章节标题栏与小节细分条 */
.review-group-chapter-divider {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 7px 10px;
    margin: 10px 0 6px 0;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.04);
    border-left: 3px solid var(--primary);
    font-size: 0.74rem;
    font-weight: 800;
    color: var(--text-main);
    scroll-margin-top: 14px;
}
body.light-theme .review-group-chapter-divider {
    background: #e2e8f0;
}
.review-group-section-tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--text-muted);
    padding: 4px 6px 2px 4px;
    margin-top: 4px;
}

/* 今日已完成折叠抽屉 */
.today-done-drawer {
    margin-top: 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    background: rgba(16, 185, 129, 0.03);
}
.today-done-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 10px;
    cursor: pointer;
    background: rgba(16, 185, 129, 0.06);
    user-select: none;
}
.today-done-title {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.74rem;
    font-weight: 800;
    color: #10b981;
}
.today-done-list {
    padding: 6px 10px 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.today-done-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 5px 8px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    font-size: 0.68rem;
    color: var(--text-main);
}

/* ==================== 温故日历所选日期明细清单 (抽屉概况版) ==================== */
.selected-date-tasks-panel {
    margin-top: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.025);
    transition: all 0.2s ease;
}
body.light-theme .selected-date-tasks-panel {
    background: #f8fafc;
}
.selected-date-tasks-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 10px;
    background: rgba(255, 255, 255, 0.04);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--text-main);
    cursor: pointer;
    user-select: none;
    transition: background 0.15s ease;
}
.selected-date-tasks-header:hover {
    background: rgba(255, 255, 255, 0.07);
}
.selected-date-tasks-panel.collapsed .selected-date-tasks-header {
    border-bottom: none;
}
.selected-date-tasks-panel.collapsed .selected-date-tasks-list {
    display: none;
}

.selected-date-tasks-list {
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* 日历概况科目分组 */
.cal-overview-subject-box {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 6px 8px;
    background: rgba(255, 255, 255, 0.02);
}
body.light-theme .cal-overview-subject-box {
    background: #ffffff;
}
.cal-overview-subject-title {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 4px;
}
.cal-overview-chapter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    padding-left: 6px;
}
.cal-overview-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.25);
    border-radius: 5px;
    padding: 3px 6px;
    font-size: 0.65rem;
    color: var(--text-main);
    cursor: pointer;
    transition: all 0.15s ease;
}
.cal-overview-chip:hover {
    background: rgba(59, 130, 246, 0.2);
    border-color: var(--primary);
    color: var(--primary);
}
.cal-overview-chip-count {
    background: var(--primary);
    color: #ffffff;
    border-radius: 999px;
    padding: 0 4px;
    font-size: 0.6rem;
    font-weight: 800;
    font-family: 'JetBrains Mono', monospace;
}

/* 总览卡片折叠 */
.review-overview-card.collapsed .overview-tree-body {
    display: none;
}
.review-overview-card.collapsed .overview-top-bar {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}
.overview-top-bar {
    cursor: pointer;
    user-select: none;
}
.overview-top-bar:hover .overview-title-wrap {
    color: var(--primary);
}

.fold-caret-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: transform 0.2s ease;
}
.collapsed .fold-caret-icon {
    transform: rotate(-90deg);
}

/* 科目抽屉箭头与今日完成抽屉折叠 */
.subject-review-caret {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    width: 14px;
    height: 14px;
    transition: transform 0.2s ease;
}
.subject-review-drawer.collapsed .subject-review-caret {
    transform: rotate(-90deg);
}
.today-done-drawer.collapsed .today-done-list {
    display: none;
}
.today-done-drawer.collapsed .today-done-header {
    border-bottom: none;
}
.today-done-header {
    cursor: pointer;
    user-select: none;
}

.selected-date-empty-tip {
    text-align: center;
    padding: 12px 8px;
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* 顶部温故看板中的专属电台胶囊按钮 */
.overview-actions-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
}
@media (max-width: 600px) {
    .today-summary-bar .summary-stat-item {
        flex-direction: column !important;
        min-height: 44px;
        gap: 2px !important;
    }
    .today-summary-bar .stat-lbl { white-space: nowrap; gap: 3px; }
    .today-summary-bar .stat-lbl svg { flex-shrink: 0; }
    .overview-top-bar { flex-wrap: wrap; }
    .overview-title-wrap { flex-basis: 100%; }
    .overview-actions-wrap { flex-wrap: wrap; gap: 6px; }
    .overview-actions-wrap > a, .overview-actions-wrap > button {
        white-space: nowrap;
        flex-shrink: 0;
        min-height: 32px;
    }
}
.overview-radio-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 9px;
    border-radius: 6px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.16) 0%, rgba(139, 92, 246, 0.22) 100%);
    border: 1px solid rgba(139, 92, 246, 0.45);
    color: #c7d2fe;
    font-size: 0.68rem;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.2s ease;
    user-select: none;
}
.overview-radio-btn:hover {
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    color: #ffffff;
    border-color: #ffffff;
    box-shadow: 0 2px 10px rgba(99, 102, 241, 0.38);
    transform: translateY(-1px);
}
body.light-theme .overview-radio-btn {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(139, 92, 246, 0.14) 100%);
    color: #4338ca;
    border-color: rgba(99, 102, 241, 0.35);
}
body.light-theme .overview-radio-btn:hover {
    color: #ffffff;
}

/* ==================== 今日温故错题自测与批注交互样式 (还原图一高质感) ==================== */
.overview-practice-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 10px;
    border-radius: 6px;
    background: var(--primary-glow);
    border: 1px solid var(--primary);
    color: var(--primary-light, var(--primary));
    font-size: 0.68rem;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    user-select: none;
}
.overview-practice-btn:hover {
    background: var(--primary);
    color: #ffffff !important;
    border-color: var(--primary);
    box-shadow: 0 4px 14px var(--primary-glow);
    transform: translateY(-1px);
}
body.light-theme .overview-practice-btn {
    background: var(--primary-glow);
    color: var(--primary);
    border-color: var(--primary);
}
body.light-theme .overview-practice-btn:hover {
    background: var(--primary);
    color: #ffffff !important;
}
.overview-practice-btn.empty-wrong {
    opacity: 0.88;
    background: rgba(255, 255, 255, 0.03);
    border-color: var(--border-color);
    color: var(--text-muted);
}
.overview-practice-btn.empty-wrong:hover {
    background: var(--primary-glow);
    border-color: var(--primary);
    color: var(--primary-light, var(--text-main));
}
body.light-theme .overview-practice-btn.empty-wrong {
    background: rgba(0, 0, 0, 0.03) !important;
    border-color: var(--border-color) !important;
    color: var(--text-muted) !important;
}
body.light-theme .overview-practice-btn.empty-wrong:hover {
    background: var(--primary-glow) !important;
    border-color: var(--primary) !important;
    color: var(--primary) !important;
}

/* 错题弹窗专属：根据当前主题色自适应的主功能操作按钮 */
.wrong-theme-btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 16px;
    border-radius: 8px;
    background: var(--primary);
    border: 1px solid var(--primary);
    color: #ffffff !important;
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
    box-shadow: 0 2px 8px var(--primary-glow);
}
.wrong-theme-btn-primary:hover {
    filter: brightness(1.1);
    box-shadow: 0 4px 16px var(--primary-glow);
    transform: translateY(-1px);
}
.wrong-theme-btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}
.wrong-theme-btn-secondary:hover {
    background: var(--primary-glow);
    border-color: var(--primary);
    color: var(--primary-light, var(--primary));
    transform: translateY(-1px);
}
body.light-theme .wrong-theme-btn-secondary {
    background: #f8fafc;
    border-color: var(--border-color);
    color: var(--text-main);
}
body.light-theme .wrong-theme-btn-secondary:hover {
    background: var(--primary-glow);
    border-color: var(--primary);
    color: var(--primary);
}

.wrong-practice-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(10, 11, 16, 0.82);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 100005;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 16px;
    box-sizing: border-box;
}
#topic-manager .topic-manager-box{max-width:880px;height:calc(100vh - 40px);height:min(840px,calc(100dvh - 40px));max-height:none;min-height:0;padding:0;background:var(--bg-panel);color:var(--text-main)}
#topic-manager .topic-manager-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px;border-bottom:1px solid var(--border-color);flex-shrink:0}
#topic-manager h2{margin:0;font-size:18px;color:inherit}
#topic-manager .topic-manager-toolbar{padding:12px 18px;border-bottom:1px solid var(--border-color);flex-shrink:0}
#topic-manager .topic-manager-toolbar p{margin:0 0 8px;font-size:13px;color:var(--text-muted)}
#topic-manager .topic-manager-toolbar>details{margin:0 0 10px;font-size:13px}
#topic-manager button{width:auto;min-height:36px;margin:0;padding:6px 12px;background:var(--bg-panel-hover);color:var(--text-main);border:1px solid var(--border-color);border-radius:7px}
#topic-manager .topic-manager-toolbar input{display:block;box-sizing:border-box;width:100%;padding:10px 12px;border:1px solid var(--border-color);border-radius:8px;background:var(--bg-panel-hover);color:var(--text-main);font:inherit;font-size:14px}
#topic-manager .topic-manager-list{flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;padding:14px 18px;overscroll-behavior:contain;touch-action:pan-y;-webkit-overflow-scrolling:touch}
#topic-manager .topic-manager-subject{margin:0 0 20px}
#topic-manager .topic-manager-subject>h3{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:15px;margin:0 0 10px;color:var(--text-main)}
#topic-manager small{color:var(--text-muted);font-size:12px;font-weight:400;overflow-wrap:anywhere}
#topic-manager .topic-manager-group{border:1px solid var(--border-color);border-radius:9px;background:var(--bg-panel-hover);margin:8px 0;overflow:hidden}
#topic-manager .topic-manager-group>summary,#topic-manager .topic-manager-question>summary{display:flex;align-items:center;gap:10px;padding:12px;cursor:pointer;list-style:none;font-size:14px;font-weight:600;color:var(--text-main)}
#topic-manager summary::-webkit-details-marker{display:none}
#topic-manager .topic-manager-group>summary::before,#topic-manager .topic-manager-question>summary::before{content:'›';color:var(--text-muted);font-size:20px;flex:none}
#topic-manager .topic-manager-group[open]>summary::before,#topic-manager .topic-manager-question[open]>summary::before{transform:rotate(90deg)}
#topic-manager summary>span{flex:1;min-width:0;overflow-wrap:anywhere}
#topic-manager summary>small{flex:none;max-width:40%;text-align:right}
#topic-manager .topic-manager-group>.topic-manager-group{margin:8px 12px}
#topic-manager .topic-manager-question{border-top:1px solid var(--border-color);margin:0}
#topic-manager .topic-manager-question>summary{font-weight:400;line-height:1.65}
#topic-manager .topic-manager-question>summary>span{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
#topic-manager .topic-manager-question-content{padding:0 14px 14px;line-height:1.75;font-size:14px;overflow-wrap:anywhere}
#topic-manager .topic-manager-question-content p{white-space:pre-wrap;margin:8px 0}
#topic-manager .topic-manager-question-content details{margin-top:12px}
#topic-manager .topic-manager-question-content select{width:100%;max-width:100%;margin-top:8px}
#topic-manager footer{padding:10px 18px;border-top:1px solid var(--border-color);color:var(--text-muted);font-size:12px;flex-shrink:0}
#topic-manager :focus-visible{outline:2px solid var(--primary);outline-offset:-2px}
@media(max-width:480px){#topic-manager{padding:8px}#topic-manager .topic-manager-box{height:calc(100vh - 16px);height:calc(100dvh - 16px)}#topic-manager .topic-manager-list,#topic-manager .topic-manager-header,#topic-manager .topic-manager-toolbar{padding:12px}#topic-manager summary>small{max-width:35%;font-size:11px}}
body.light-theme .wrong-practice-modal-backdrop {
    background: rgba(15, 23, 42, 0.45);
}

.wrong-practice-box {
    background: #131520;
    color: #f8fafc;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 14px;
    width: 100%;
    max-width: 680px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    overflow: hidden;
    animation: wrongFadeIn 0.2s ease;
}
body.light-theme .wrong-practice-box {
    background: #ffffff !important;
    color: #0f172a !important;
    border: 1px solid #cbd5e1 !important;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15) !important;
}

@keyframes wrongFadeIn {
    from { opacity: 0; transform: scale(0.97); }
    to { opacity: 1; transform: scale(1); }
}

.wrong-practice-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 18px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
body.light-theme .wrong-practice-header {
    background: #f8fafc !important;
    border-bottom: 1px solid #e2e8f0 !important;
}

.wrong-practice-title-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
}
.wrong-practice-badge {
    font-size: 0.78rem;
    font-weight: 800;
    background: rgba(59, 130, 246, 0.18);
    color: #60a5fa;
    padding: 3px 10px;
    border-radius: 6px;
}
body.light-theme .wrong-practice-badge {
    background: #eff6ff !important;
    color: #2563eb !important;
    border: 1px solid #bfdbfe;
}

/* 错题弹窗顶部药丸胶囊栏 (100% 还原用户指定设计) */
.wrong-header-pills-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.wrong-pill-qnum {
    display: inline-flex;
    align-items: center;
    padding: 3px 12px;
    border-radius: 999px;
    background: var(--primary);
    color: #ffffff !important;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.2px;
    box-shadow: 0 1px 4px var(--primary-glow);
}
.wrong-pill-type {
    display: inline-flex;
    align-items: center;
    padding: 3px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-main);
    font-size: 0.76rem;
    font-weight: 700;
    border: 1px solid rgba(255, 255, 255, 0.08);
}
body.light-theme .wrong-pill-type {
    background: #f1f5f9;
    color: #334155;
    border-color: #e2e8f0;
}
.wrong-pill-stats {
    display: inline-flex;
    align-items: center;
    padding: 3px 12px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 800;
    transition: all 0.2s ease;
}
.wrong-pill-stats.has-attempts {
    background: rgba(59, 130, 246, 0.15);
    color: var(--primary-light, #60a5fa);
    border: 1px solid rgba(59, 130, 246, 0.3);
}
body.light-theme .wrong-pill-stats.has-attempts {
    background: #e0f2fe !important;
    color: #0284c7 !important;
    border-color: #bae6fd !important;
}
.wrong-pill-stats.no-attempts {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-muted);
    border: 1px dashed rgba(255, 255, 255, 0.12);
}
body.light-theme .wrong-pill-stats.no-attempts {
    background: #f8fafc !important;
    color: #94a3b8 !important;
    border-color: #cbd5e1 !important;
}

.wrong-practice-progress {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
}
body.light-theme .wrong-practice-progress {
    color: #475569 !important;
}

.wrong-close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.15rem;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
    transition: all 0.15s;
}
.wrong-close-btn:hover {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

.wrong-practice-body {
    flex: 1;
    overflow-y: auto;
    padding: 18px 22px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.wrong-q-stem-row {
    line-height: 1.65;
}
.wrong-type-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 800;
    padding: 2px 7px;
    border-radius: 4px;
    margin-right: 6px;
    vertical-align: 1px;
}
.wrong-type-tag.single {
    background: rgba(59, 130, 246, 0.18);
    color: #60a5fa;
}
body.light-theme .wrong-type-tag.single {
    background: #dbeafe !important;
    color: #1d4ed8 !important;
}
.wrong-type-tag.multi {
    background: rgba(139, 92, 246, 0.18);
    color: #c084fc;
}
body.light-theme .wrong-type-tag.multi {
    background: #ede9fe !important;
    color: #6d28d9 !important;
}

.wrong-source-tag {
    font-size: 0.68rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.06);
    padding: 2px 8px;
    border-radius: 4px;
    margin-right: 8px;
}
body.light-theme .wrong-source-tag {
    background: #f1f5f9 !important;
    color: #475569 !important;
    border: 1px solid #e2e8f0;
}

.wrong-stem-text {
    display: inline;
    font-size: 0.95rem;
    font-weight: 700;
    color: #f8fafc;
    line-height: 1.7;
}
body.light-theme .wrong-stem-text {
    color: #0f172a !important;
}

/* 选项卡片列表 */
.wrong-options-list {
    display: flex;
    flex-direction: column;
    gap: 9px;
}
.wrong-option-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 11px 15px;
    border-radius: 9px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.03);
    cursor: pointer;
    transition: all 0.15s ease;
    user-select: none;
}
body.light-theme .wrong-option-item {
    background: #ffffff !important;
    border: 1px solid #cbd5e1 !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.wrong-option-item:hover {
    border-color: #3b82f6;
    background: rgba(59, 130, 246, 0.08);
}
body.light-theme .wrong-option-item:hover {
    background: #f0f7ff !important;
    border-color: #3b82f6 !important;
}

.wrong-option-item.selected {
    border-color: #3b82f6 !important;
    background: rgba(59, 130, 246, 0.2) !important;
}
body.light-theme .wrong-option-item.selected {
    background: #eff6ff !important;
    border-color: #2563eb !important;
}

.wrong-option-item.is-correct {
    border-color: #10b981 !important;
    background: rgba(16, 185, 129, 0.18) !important;
}
body.light-theme .wrong-option-item.is-correct {
    background: #ecfdf5 !important;
    border-color: #059669 !important;
}

.wrong-option-item.is-wrong {
    border-color: #ef4444 !important;
    background: rgba(239, 68, 68, 0.18) !important;
}
body.light-theme .wrong-option-item.is-wrong {
    background: #fef2f2 !important;
    border-color: #dc2626 !important;
}

.wrong-option-key {
    width: 25px;
    height: 25px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.78rem;
    font-weight: 800;
    color: #f8fafc;
    flex-shrink: 0;
    transition: all 0.15s;
}
body.light-theme .wrong-option-key {
    background: #f1f5f9 !important;
    border: 1px solid #94a3b8 !important;
    color: #1e293b !important;
}

.wrong-option-item.selected .wrong-option-key {
    background: #3b82f6 !important;
    border-color: #3b82f6 !important;
    color: #ffffff !important;
}
.wrong-option-item.is-correct .wrong-option-key {
    background: #10b981 !important;
    border-color: #10b981 !important;
    color: #ffffff !important;
}
.wrong-option-item.is-wrong .wrong-option-key {
    background: #ef4444 !important;
    border-color: #ef4444 !important;
    color: #ffffff !important;
}

.wrong-option-val {
    font-size: 0.88rem;
    color: #f1f5f9;
    line-height: 1.55;
    flex: 1;
}
body.light-theme .wrong-option-val {
    color: #0f172a !important;
    font-weight: 500;
}

/* 答案反馈条 */
.wrong-answer-feedback {
    margin-top: 4px;
}
.wrong-result-bar {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 15px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.84rem;
}
body.light-theme .wrong-result-bar {
    background: #f8fafc !important;
    border: 1px solid #cbd5e1 !important;
    color: #0f172a !important;
}

.wrong-judge-tag {
    font-weight: 800;
    padding: 3px 10px;
    border-radius: 5px;
    font-size: 0.74rem;
    margin-left: auto;
}
.wrong-judge-tag.correct {
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.4);
}
body.light-theme .wrong-judge-tag.correct {
    background: #d1fae5 !important;
    color: #047857 !important;
}
.wrong-judge-tag.wrong {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.4);
}
body.light-theme .wrong-judge-tag.wrong {
    background: #fee2e2 !important;
    color: #b91c1c !important;
}

.wrong-explanation-box {
    margin-top: 8px;
    border: 1px dashed rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    overflow: hidden;
}
body.light-theme .wrong-explanation-box {
    border-color: #cbd5e1 !important;
}

.wrong-exp-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 9px 13px;
    background: rgba(255, 255, 255, 0.03);
    font-size: 0.76rem;
    font-weight: 700;
    color: var(--text-muted);
    cursor: pointer;
}
body.light-theme .wrong-exp-header {
    background: #f1f5f9 !important;
    color: #334155 !important;
}
.wrong-exp-body {
    padding: 12px 14px;
    font-size: 0.82rem;
    line-height: 1.65;
    color: #f1f5f9;
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}
body.light-theme .wrong-exp-body {
    background: #f8fafc !important;
    color: #1e293b !important;
    border-top: 1px solid #e2e8f0 !important;
}

/* 我的手写批注卡片 */
.wrong-annotation-card {
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 9px;
    padding: 11px 14px;
    background: rgba(255, 255, 255, 0.02);
}
body.light-theme .wrong-annotation-card {
    background: #f8fafc !important;
    border: 1px solid #e2e8f0 !important;
}

.wrong-annotation-title {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.74rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 7px;
}
body.light-theme .wrong-annotation-title {
    color: #475569 !important;
}

.wrong-annotation-saved-tip {
    margin-left: auto;
    font-size: 0.7rem;
    color: #10b981;
    font-weight: 700;
    opacity: 0;
    transition: opacity 0.2s ease;
}
.wrong-annotation-input {
    width: 100%;
    min-height: 60px;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 7px;
    color: #f8fafc;
    font-size: 0.82rem;
    padding: 9px 11px;
    box-sizing: border-box;
    outline: none;
    resize: vertical;
    font-family: inherit;
    transition: border-color 0.2s ease;
}
body.light-theme .wrong-annotation-input {
    background: #ffffff !important;
    border: 1px solid #cbd5e1 !important;
    color: #0f172a !important;
}
.wrong-annotation-input:focus {
    border-color: #3b82f6 !important;
}

/* 底部操作条 */
.wrong-practice-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 11px 18px;
    background: rgba(255, 255, 255, 0.03);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}
body.light-theme .wrong-practice-footer {
    background: #f8fafc !important;
    border-top: 1px solid #e2e8f0 !important;
}

.wrong-nav-btn {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 6px;
    color: #f8fafc;
    padding: 7px 15px;
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}
body.light-theme .wrong-nav-btn {
    background: #ffffff !important;
    border: 1px solid #cbd5e1 !important;
    color: #334155 !important;
}
.wrong-nav-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.14);
}
body.light-theme .wrong-nav-btn:hover:not(:disabled) {
    background: #f1f5f9 !important;
}
.wrong-nav-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.wrong-submit-btn {
    background: #3b82f6;
    border: none;
    border-radius: 6px;
    color: #fff;
    padding: 7px 18px;
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s;
}
.wrong-submit-btn:hover {
    background: #2563eb;
}

.wrong-next-btn {
    background: rgba(255, 255, 255, 0.09);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 6px;
    color: #f8fafc;
    padding: 7px 18px;
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.15s;
}
body.light-theme .wrong-next-btn {
    background: #ffffff !important;
    border: 1px solid #cbd5e1 !important;
    color: #1e293b !important;
}
.wrong-next-btn:hover {
    background: rgba(59, 130, 246, 0.2);
    border-color: #3b82f6;
    color: #60a5fa;
}
body.light-theme .wrong-next-btn:hover {
    background: #eff6ff !important;
    border-color: #2563eb !important;
    color: #2563eb !important;
}

/* 上传 PDF 与微调区域样式 */
.wrong-drop-zone {
    border: 2px dashed rgba(59, 130, 246, 0.4);
    border-radius: 12px;
    padding: 36px 20px;
    text-align: center;
    background: rgba(59, 130, 246, 0.03);
    cursor: pointer;
    transition: all 0.2s ease;
}
body.light-theme .wrong-drop-zone {
    background: #f8fafc !important;
    border-color: #93c5fd !important;
}
.wrong-drop-zone:hover {
    background: rgba(59, 130, 246, 0.08);
    border-color: #3b82f6;
}
body.light-theme .wrong-drop-zone:hover {
    background: #eff6ff !important;
}

.wrong-chapter-preview-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 380px;
    overflow-y: auto;
    margin-top: 10px;
}
.wrong-preview-group-card {
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 9px;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.02);
}
body.light-theme .wrong-preview-group-card {
    background: #ffffff !important;
    border: 1px solid #e2e8f0 !important;
}

.wrong-preview-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}
.wrong-chapter-select {
    background: #131520;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    color: #f8fafc;
    font-size: 0.72rem;
    padding: 4px 8px;
    outline: none;
}
body.light-theme .wrong-chapter-select {
    background: #ffffff !important;
    border: 1px solid #cbd5e1 !important;
    color: #0f172a !important;
}

.wrong-preview-sample-text {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
body.light-theme .wrong-preview-sample-text {
    color: #64748b !important;
}

/* 题号快速选择与导航抽屉 */
.wrong-grid-toggle-btn {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 6px;
    padding: 3px 9px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    color: var(--text-main);
    transition: all 0.15s ease;
}
body.light-theme .wrong-grid-toggle-btn {
    background: #ffffff !important;
    border: 1px solid #cbd5e1 !important;
    color: #0f172a !important;
}

.wrong-number-grid-panel {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(38px, 1fr));
    gap: 7px;
    padding: 12px 18px;
    max-height: 180px;
    overflow-y: auto;
    background: #0f121d;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
body.light-theme .wrong-number-grid-panel {
    background: #f1f5f9 !important;
    border-bottom: 1px solid #e2e8f0 !important;
}

.wrong-grid-item {
    height: 32px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s ease;
}
body.light-theme .wrong-grid-item {
    background: #ffffff !important;
    border: 1px solid #cbd5e1 !important;
    color: #475569 !important;
}
.wrong-grid-item:hover {
    transform: translateY(-1px);
    border-color: #3b82f6;
    color: #3b82f6;
}
.wrong-grid-item.correct {
    background: rgba(16, 185, 129, 0.2) !important;
    border-color: #10b981 !important;
    color: #10b981 !important;
}
.wrong-grid-item.wrong {
    background: rgba(239, 68, 68, 0.2) !important;
    border-color: #ef4444 !important;
    color: #ef4444 !important;
}
.wrong-grid-item.current {
    box-shadow: 0 0 0 2px #3b82f6;
    color: #ffffff !important;
    font-weight: 800;
}
body.light-theme .wrong-grid-item.current {
    background: #2563eb !important;
    color: #ffffff !important;
}

/* 重做此题按钮 */
.wrong-reset-btn {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.4);
    border-radius: 6px;
    color: #f59e0b;
    padding: 7px 13px;
    font-size: 0.78rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.15s;
}
body.light-theme .wrong-reset-btn {
    background: #fef3c7 !important;
    border-color: #f59e0b !important;
    color: #b45309 !important;
}

/* 章节胶囊上的错题微标 */
.ch-wrong-badge {
    display: inline-flex;
    align-items: center;
    background: rgba(239, 68, 68, 0.18);
    border: 1px solid rgba(239, 68, 68, 0.45);
    border-radius: 999px;
    padding: 1px 7px;
    font-size: 0.65rem;
    font-weight: 800;
    color: #ef4444;
    margin-left: 5px;
    cursor: pointer;
    transition: all 0.15s ease;
}
body.light-theme .ch-wrong-badge {
    background: #fee2e2 !important;
    border-color: #f87171 !important;
    color: #b91c1c !important;
}
.ch-wrong-badge:hover {
    background: #ef4444 !important;
    color: #ffffff !important;
    border-color: #ef4444 !important;
    transform: scale(1.06);
}

/* 导入微调单题行 */
.wrong-expand-items-btn {
    background: transparent;
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 5px;
    color: #3b82f6;
    font-size: 0.7rem;
    padding: 3px 8px;
    cursor: pointer;
    transition: all 0.15s;
}
.wrong-expand-items-btn:hover {
    background: rgba(59, 130, 246, 0.12);
}
.wrong-group-expanded-items {
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px dashed rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 220px;
    overflow-y: auto;
}
body.light-theme .wrong-group-expanded-items {
    border-top-color: #cbd5e1 !important;
}
.wrong-single-item-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 5px 8px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 6px;
}
body.light-theme .wrong-single-item-row {
    background: #f1f5f9 !important;
}
.wrong-single-item-left {
    display: flex;
    align-items: center;
    gap: 6px;
    overflow: hidden;
    flex: 1;
}
.wrong-single-idx {
    font-size: 0.68rem;
    font-weight: 800;
    color: var(--text-muted);
}
body.light-theme .wrong-single-idx {
    color: #64748b !important;
}
.wrong-single-stem {
    font-size: 0.74rem;
    color: #f8fafc;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}
body.light-theme .wrong-single-stem {
    color: #0f172a !important;
}
.wrong-single-ans {
    font-size: 0.68rem;
    font-weight: 800;
    color: #10b981;
    background: rgba(16, 185, 129, 0.12);
    padding: 1px 5px;
    border-radius: 4px;
    flex-shrink: 0;
}
body.light-theme .wrong-single-ans {
    background: #d1fae5 !important;
    color: #047857 !important;
}
.wrong-chapter-select-mini {
    background: #131520;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 5px;
    color: #f8fafc;
    font-size: 0.68rem;
    padding: 3px 6px;
    max-width: 150px;
    outline: none;
}
body.light-theme .wrong-chapter-select-mini {
    background: #ffffff !important;
    border: 1px solid #cbd5e1 !important;
    color: #0f172a !important;
}

/* 错题弹窗顶部常驻操作按钮组（无论何时做题均可随时导入或换章） */
.wrong-header-actions-wrap {
    display: flex;
    align-items: center;
    gap: 7px;
    flex-wrap: wrap;
}
.wrong-header-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 10px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #f1f5f9;
    font-size: 0.72rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
    user-select: none;
}
.wrong-header-action-btn:hover {
    background: var(--primary-glow);
    border-color: var(--primary);
    color: var(--primary-light, #ffffff);
    transform: translateY(-1px);
}
body.light-theme .wrong-header-action-btn {
    background: #ffffff !important;
    border-color: #cbd5e1 !important;
    color: #334155 !important;
}
body.light-theme .wrong-header-action-btn:hover {
    background: var(--primary-glow) !important;
    border-color: var(--primary) !important;
    color: var(--primary) !important;
}

/* 题号网格抽屉面板底部操作卡条 */
.wrong-grid-panel-footer {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 8px;
    margin-top: 4px;
    border-top: 1px dashed rgba(255, 255, 255, 0.1);
}
body.light-theme .wrong-grid-panel-footer {
    border-top-color: #cbd5e1 !important;
}
.wrong-grid-footer-tip {
    font-size: 0.68rem;
    color: var(--text-muted);
}
.wrong-grid-footer-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 5px;
    color: var(--text-main);
    font-size: 0.68rem;
    font-weight: 600;
    padding: 3px 8px;
    cursor: pointer;
    transition: all 0.15s ease;
}
.wrong-grid-footer-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-glow);
}
body.light-theme .wrong-grid-footer-btn {
    background: #ffffff !important;
    border-color: #cbd5e1 !important;
    color: #475569 !important;
}

/* 保证导入错题 PDF 弹窗始终压在自测做题弹窗最顶层，无缝叠层 */
#wrong-import-modal {
    z-index: 100010 !important;
}

#wrong-manager-modal {
    z-index: 100012 !important;
}

#wrong-single-tune-modal {
    z-index: 100015 !important;
}

/* 做题界面章节徽章旁的即时微调小胶囊 */
.wrong-tune-mini-btn {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 2px 7px;
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.16);
    color: var(--text-muted);
    font-size: 0.68rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.15s ease;
    user-select: none;
}
.wrong-tune-mini-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: var(--primary-glow);
    transform: scale(1.04);
}
body.light-theme .wrong-tune-mini-btn {
    background: #ffffff !important;
    border-color: #cbd5e1 !important;
    color: #475569 !important;
}
body.light-theme .wrong-tune-mini-btn:hover {
    color: var(--primary) !important;
    background: #e0f2fe !important;
    border-color: #38bdf8 !important;
}

/* 错题库管理面板样式 */
.wrong-manage-group-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    padding: 10px 14px;
    margin-bottom: 9px;
    transition: border-color 0.2s;
}
body.light-theme .wrong-manage-group-card {
    background: #f8fafc !important;
    border-color: #e2e8f0 !important;
}
.wrong-manage-group-card:hover {
    border-color: rgba(59, 130, 246, 0.35);
}
.wrong-manage-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}
.wrong-manage-items-list {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px dashed rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    gap: 7px;
    max-height: 240px;
    overflow-y: auto;
}
body.light-theme .wrong-manage-items-list {
    border-top-color: #cbd5e1 !important;
}
.wrong-manage-item-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 6px 10px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 6px;
    font-size: 0.74rem;
}
body.light-theme .wrong-manage-item-row {
    background: #ffffff !important;
    border: 1px solid #e2e8f0;
}

@media (max-width: 640px) {
    .wrong-header-action-btn span,
    .wrong-tune-mini-btn span {
        display: none;
    }
    .wrong-header-action-btn {
        padding: 3px 6px;
    }
}

/* ==================== 西综 AI 智能考点助教样式 ==================== */
@import url("./ai_assistant.css");






/* 温故主题分类：与现有错题面板共用配色，窄屏控件自动换行。 */
#topic-classification-panel { font-size: .84rem; line-height: 1.55; }
#topic-classification-panel h3 { margin: 0 0 6px; font-size: 1rem; }
#topic-classification-panel > button, #topic-classification-panel > select { margin: 4px 5px 8px 0; max-width: 100%; }
#topic-classification-panel details { margin-top: 10px; }
#topic-classification-panel summary, #topic-manager summary { cursor: pointer; padding: 8px 0; font-weight: 700; }
#topic-classification-panel p { margin: 5px 0; overflow-wrap: anywhere; }
#topic-classification-panel small { display: block; color: var(--text-muted); margin-top: 4px; }
#topic-manager input { box-sizing: border-box; padding: 9px; margin: 12px 0; background: var(--bg-panel-hover); color: var(--text-main); border: 1px solid var(--border-color); border-radius: 6px; }
#topic-manager select { max-width: 100%; }
.topic-import-panel { padding: 8px 0; margin: 0; }
.wrong-import-library-bar { display:flex; align-items:center; justify-content:space-between; gap:16px; padding:12px 0; border-bottom:1px solid var(--border-color); color:var(--text-muted); font-size:13px; }
.wrong-import-library-bar strong { color:var(--text-main); font-weight:600; }
.wrong-import-library-menu { position:relative; }
.wrong-import-library-menu > summary { cursor:pointer; list-style:none; padding:8px 0 8px 12px; }
.wrong-import-library-menu > div { position:absolute; z-index:5; right:0; top:100%; width:220px; padding:12px; background:var(--bg-panel-hover); border:1px solid var(--border-color); border-radius:10px; box-shadow:0 8px 24px rgba(0,0,0,.2); }
.wrong-import-library-menu p { margin:0 0 8px; font-size:12px; }
.wrong-import-library-menu button { display:block; width:100%; text-align:left; margin:4px 0; background:transparent; border:0; }
.wrong-import-library-menu .library-danger { color:#ef7777; }
#topic-classification-panel > h3 { font-size:17px; font-weight:600; margin:18px 0 6px; }
#topic-classification-panel > p { color:var(--text-muted); font-weight:400; }
.topic-import-toolbar { display:flex; flex-wrap:wrap; align-items:center; gap:8px; padding:12px 0; margin:8px 0; border-bottom:1px solid var(--border-color); }
.topic-import-toolbar .topic-primary-action { margin-left:auto; background:var(--primary); color:#fff; border-color:var(--primary); }
#topic-classification-panel .topic-import-toolbar > button { min-height:44px; }
#topic-classification-panel .wrong-nav-btn { min-height:40px; padding:8px 12px; font-size:14px; }
.topic-import-settings { display:flex; flex-wrap:wrap; gap:4px 20px; }
#topic-classification-panel .topic-advanced, #topic-classification-panel .topic-duplicates { padding:0; border:0; margin:0; font-size:13px; }
#topic-classification-panel .topic-advanced > summary, #topic-classification-panel .topic-duplicates > summary { font-weight:400; color:var(--text-muted); }
#topic-classification-panel .topic-advanced[open], #topic-classification-panel .topic-duplicates[open] { width:100%; }
#topic-classification-panel .topic-duplicates > div { max-height:240px; overflow:auto; }
#topic-classification-panel .topic-advanced select, #topic-classification-panel .topic-advanced button { margin:8px 6px 0 0; }
#topic-classification-panel .topic-preview-row { padding:16px 0; border-bottom:1px solid var(--border-color); }
#topic-classification-panel .topic-preview-row { padding:20px 0; }
#topic-classification-panel .topic-preview-row > p { font-weight:400; }
#topic-classification-panel .topic-question-status { margin-left:auto; font-size:11px; padding:3px 7px; border-radius:4px; background:rgba(127,127,127,.08); }
#topic-classification-panel .topic-question-edit { margin:8px 0 0; color:var(--text-muted); font-size:13px; }
#topic-classification-panel .topic-question-edit > summary { cursor:pointer; }
#topic-classification-panel .topic-question-edit select { margin-top:10px; }
#topic-classification-panel .topic-group-actions { padding:0; margin:6px 0 0; font-size:12px; color:var(--text-muted); border:0; }
#topic-classification-panel .topic-question-group { position:relative; }
#topic-classification-panel .topic-question-group > summary { padding-right:100px; }
#topic-classification-panel .topic-group-actions { position:absolute; right:0; top:0; margin:0; z-index:1; }
#topic-classification-panel .topic-group-actions > summary { font-weight:400; }
#topic-classification-panel .topic-group-actions[open] { width:min(320px,100%); background:var(--bg-panel-hover); padding:0 10px 10px; border:1px solid var(--border-color); border-radius:8px; }
#topic-classification-panel .topic-question-detail, #topic-classification-panel .topic-question-edit { display:inline-block; margin:0 18px 0 0; vertical-align:top; }
#topic-classification-panel .topic-question-detail > summary, #topic-classification-panel .topic-question-edit > summary { font-weight:400; font-size:12px; padding:5px 0; }
#topic-classification-panel .topic-question-detail[open], #topic-classification-panel .topic-question-edit[open] { display:block; margin:6px 0 10px; }
#topic-classification-panel .topic-progress-detail { margin:12px 0; font-size:12px; color:var(--text-muted); }
#topic-classification-panel .topic-progress-detail[data-error] > summary { color:#d7ae72; }
#topic-classification-panel .topic-import-toolbar .wrong-nav-btn:not(.topic-primary-action) { background:transparent; border-color:var(--border-color); color:var(--text-main); }
#topic-classification-panel .topic-question-numbering { display:flex; align-items:center; gap:12px; margin-bottom:8px; }
#topic-classification-panel .topic-question-numbering strong { color:var(--text-main); font-size:15px; }
#topic-classification-panel .topic-question-numbering span { color:var(--text-muted); font-size:12px; }
#topic-classification-panel .topic-preview-row > p { font-size:15px; line-height:1.75; font-weight:400; margin:10px 0 14px; }
#topic-classification-panel .topic-preview-row select { width:100%; max-width:520px; min-height:40px; font-size:14px; }
#topic-classification-panel .topic-question-detail { margin:0 18px 0 0; color:var(--text-muted); }
#topic-classification-panel .topic-question-detail summary { font-size:13px; font-weight:400; }
.review-overview-card { background:var(--bg-panel-hover); box-shadow:none; padding:14px 16px; }
.overview-subject-row { display:block; border-top:1px solid var(--border-color); }
.overview-subject-row > summary { display:flex; padding:12px 0; font-size:14px; cursor:pointer; gap:8px; }
.overview-subject-row > summary::after { content:'展开'; margin-left:auto; font-size:12px; font-weight:400; color:var(--text-muted); }
.overview-subject-row[open] > summary::after { content:'收起'; }
.overview-subject-row .overview-chapters-wrap { display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); padding:0 0 12px; gap:0 20px; }
.overview-subject-row .overview-chapter-pill { display:flex; border:0; border-bottom:1px solid var(--border-color); border-radius:0; background:transparent; padding:10px 0; font-size:13px; gap:8px; }
.overview-subject-row .overview-chapter-pill > span:first-child { flex:1; overflow-wrap:anywhere; }
.overview-subject-row .overview-chapter-count { background:transparent; color:var(--text-muted); font-size:12px; white-space:nowrap; }
.overview-subject-row .ch-wrong-badge { white-space:nowrap; }
.overview-chapter-tree { padding:0 0 8px 12px; }
.overview-chapter-row { border-top:1px solid var(--border-color); }
.overview-chapter-row > summary { display:flex; align-items:center; gap:10px; padding:11px 0; cursor:pointer; font-size:13px; list-style:none; }
.overview-chapter-row > summary::-webkit-details-marker { display:none; }
.overview-chapter-row > summary::before { content:'›'; color:var(--text-muted); font-size:17px; width:10px; }
.overview-chapter-row[open] > summary::before { content:'⌄'; }
.overview-chapter-title { flex:1; font-weight:600; }
.overview-chapter-meta { color:var(--text-muted); font-size:12px; }
.overview-chapter-row .overview-chapters-wrap { padding-left:20px; }
@media (max-width: 600px) {
  #topic-classification-panel select { width: 100%; }
  #topic-classification-panel > button { padding: 7px 10px; }
  #topic-manager .wrong-practice-box { margin: 8px; }
  .topic-import-toolbar .topic-primary-action { margin-left:0; }
  .overview-subject-row .overview-chapters-wrap { grid-template-columns:1fr; }
}