/* ===== 发声学科普 · 样式（从 index.html 拆分而来）===== */
        /* ===== 全局变量（深色科技风） ===== */
        :root {
            --bg-body: #0b0e17;
            --bg-nav: #111827;
            --bg-card: #1a2236;
            --bg-card-hover: #25304a;
            --bg-control: #141c2b;
            --border-color: #2a3a5c;
            --text-primary: #e8edf5;
            --text-secondary: #94a3b8;
            --text-muted: #475569;
            --accent: #f5c542;
            --accent-glow: rgba(245, 197, 66, 0.25);
            --accent-hover: #ffd966;
            --shadow: 0 8px 32px rgba(0,0,0,0.6);
            --radius: 16px;
            --transition: 0.3s ease;
            --organ-brain: #4a5a8a;
            --organ-brain-stroke: #8a9fd0;
            --organ-lung: #4d6a7a;
            --organ-lung-stroke: #6b9bb0;
            --organ-diaphragm: #f5c542;
            --organ-throat: #2a334a;
            --organ-throat-stroke: #4a5a7a;
            --organ-resonance: #3d4a63;
            --organ-resonance-stroke: #8aaccc;
            --organ-tongue: #b57a5a;
            --organ-tongue-stroke: #d4a082;
            --organ-lips: #b57a5a;
            --organ-body-fill: #1f2638;
            --organ-body-stroke: #3e465e;
            --grid-color: #2a3145;
        }
        .style-realistic {
            --bg-body: #f0ebe5;
            --bg-nav: #e8ddd0;
            --bg-card: #ffffff;
            --bg-card-hover: #f5f0ea;
            --bg-control: #f5f0ea;
            --border-color: #c9b99a;
            --text-primary: #2d2a24;
            --text-secondary: #5a4f42;
            --text-muted: #8a7a6a;
            --accent: #c0392b;
            --accent-glow: rgba(192,57,43,0.25);
            --accent-hover: #e74c3c;
            --organ-brain: #d4a0a0;
            --organ-brain-stroke: #b88080;
            --organ-lung: #e8b4b4;
            --organ-lung-stroke: #c08080;
            --organ-diaphragm: #b5651e;
            --organ-throat: #b07a5a;
            --organ-throat-stroke: #8a5a3a;
            --organ-resonance: #c9b99a;
            --organ-resonance-stroke: #a88a6a;
            --organ-tongue: #b57a5a;
            --organ-tongue-stroke: #9a6a4a;
            --organ-lips: #b57a5a;
            --organ-body-fill: #e8ddd0;
            --organ-body-stroke: #b09a80;
            --grid-color: #d5c8b8;
        }
        * { margin:0; padding:0; box-sizing:border-box; }
        body {
            font-family: 'Segoe UI', 'PingFang SC', Roboto, sans-serif;
            background: var(--bg-body);
            color: var(--text-primary);
            transition: background 0.3s, color 0.3s;
            padding-top: 70px;
            min-height: 100vh;
        }
        /* ===== 导航栏 ===== */
        .navbar {
            position: fixed; top:0; left:0; right:0; z-index:100;
            background: var(--bg-nav);
            border-bottom: 1px solid var(--border-color);
            padding: 0 24px;
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            transition: background 0.3s;
            box-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        /* min-width:0 让品牌区可被压缩（否则小屏下会把工具区挤出视口） */
        .nav-left { display:flex; align-items:center; gap:6px; cursor:pointer; min-width:0; overflow:hidden; }
        .nav-logo {
            font-weight:700; font-size:20px; color:var(--accent); letter-spacing:1px;
            white-space:nowrap; overflow:hidden; text-overflow:ellipsis; min-width:0;
        }
        .nav-logo-sub { font-size:13px; color:var(--text-muted); font-weight:400; margin-left:4px; }
        .nav-links { display:flex; gap:4px; overflow-x:auto; flex:1; justify-content:center; padding:0 12px; }
        .nav-links button {
            background:transparent; border:none; color:var(--text-secondary);
            padding:6px 14px; border-radius:40px; font-size:14px; font-weight:500;
            cursor:pointer; transition:all 0.2s; white-space:nowrap;
        }
        .nav-links button:hover { color:var(--text-primary); background:var(--bg-card); }
        .nav-links button.active { color:#141926; background:var(--accent); box-shadow:0 0 20px var(--accent-glow); }
        .nav-tools { display:flex; gap:8px; align-items:center; flex-shrink:0; }
        .nav-tools .btn-group { display:flex; background:var(--bg-control); border-radius:30px; padding:3px; border:1px solid var(--border-color); }
        .nav-tools .btn-group button {
            border:none; background:transparent; color:var(--text-secondary);
            padding:4px 12px; border-radius:30px; font-size:12px; font-weight:600; cursor:pointer; transition:0.2s;
        }
        .nav-tools .btn-group button.active { background:var(--accent); color:#141926; }
        .nav-tools .btn-group button:hover:not(.active) { color:var(--text-primary); }

        /* ===== 汉堡菜单按钮（桌面端隐藏） ===== */
        .nav-toggle {
            display:none; flex-direction:column; justify-content:center; gap:5px;
            width:42px; height:42px; background:var(--bg-control); border:1px solid var(--border-color);
            border-radius:10px; cursor:pointer; padding:10px; flex-shrink:0;
        }
        .nav-toggle .toggle-bar {
            display:block; height:2px; border-radius:2px; background:var(--text-secondary);
            transition:transform 0.25s, opacity 0.25s;
        }
        .nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(1) { transform:translateY(7px) rotate(45deg); }
        .nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(2) { opacity:0; }
        .nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(3) { transform:translateY(-7px) rotate(-45deg); }

        .main { max-width:1400px; margin:0 auto; padding:20px 24px 60px; }
        .page { display:none; animation:fadeIn 0.35s ease; }
        .page.active { display:block; }
        @keyframes fadeIn { from{opacity:0;transform:translateY(10px)} to{opacity:1;transform:translateY(0)} }

        /* ===== 卡片 ===== */
        .card-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:20px; margin:20px 0; }
        .card {
            background:var(--bg-card); border-radius:var(--radius); padding:20px;
            border:1px solid var(--border-color); transition:0.3s; cursor:pointer;
            overflow:hidden;
        }
        .card:hover { background:var(--bg-card-hover); transform:translateY(-4px); box-shadow:var(--shadow); }
        .card h3 { color:var(--accent); margin-bottom:6px; font-size:20px; display:flex; align-items:center; gap:8px; }
        .card .card-img {
            width:100%; height:180px; object-fit:cover; border-radius:10px;
            margin:10px 0; background:var(--bg-control);
        }
        /* 骨架屏：图片加载完成前占位，避免布局跳动 */
        .card .card-img.loading { background:var(--bg-control) linear-gradient(90deg,transparent,var(--bg-card-hover),transparent) 0/40% 100% no-repeat; animation:shimmer 1.2s infinite; }
        @keyframes shimmer { to { background-position:-140% 0; } }
        .card .card-preview { color:var(--text-secondary); font-size:14px; line-height:1.6; }
        .card .card-hint { display:inline-block; margin-top:8px; color:var(--accent); font-size:13px; font-weight:600; }

        .page-title { font-size:32px; font-weight:700; margin-bottom:4px; color:var(--text-primary); }
        .page-sub { color:var(--text-secondary); margin-bottom:20px; font-size:17px; line-height:1.6; }

        /* ===== 开发日志排版 ===== */
        .devlog-card { line-height:1.9; }
        .devlog-card h4 { color:var(--accent); margin:24px 0 10px; font-size:19px; }
        .devlog-card h4:first-child { margin-top:2px; }
        .devlog-card p { margin:0 0 12px; font-size:15px; color:var(--text-secondary); }

        /* ===== 首页SVG ===== */
        .hero-svg-wrap { background:var(--bg-card); border-radius:var(--radius); padding:20px; border:1px solid var(--border-color); }
        .hero-svg-wrap svg { width:100%; height:auto; display:block; background:var(--bg-card); border-radius:12px; cursor:default; }
        .organ-click { transition:filter 0.2s, opacity 0.2s; cursor:pointer; }
        .organ-click:hover { filter:drop-shadow(0 0 16px var(--accent-glow)); opacity:1!important; }
        .organ-click .label { pointer-events:none; fill:var(--text-muted); font-size:12px; font-weight:bold; opacity:0.7; }
        /* 器官呼吸呼吸动画 */
        @keyframes breatheOrg {
            0%, 100% { transform:scale(1); }
            50% { transform:scale(1.012); }
        }
        #homeSvg .organ-click { transform-origin:center; transform-box:fill-box; animation:breatheOrg 6s ease-in-out infinite; }
        #homeSvg .organ-click:nth-child(2) { animation-duration:6.5s; animation-delay:0.3s; }
        #homeSvg .organ-click:nth-child(3) { animation-duration:5.5s; animation-delay:0.8s; }
        #homeSvg .organ-click:nth-child(4) { animation-duration:7s; animation-delay:0.1s; }
        #homeSvg .organ-click:nth-child(5) { animation-duration:6s; animation-delay:0.5s; }
        #homeSvg .organ-click:hover { animation-play-state:paused; }
        /* 发声全流程气流动画 */
        @keyframes dashFlow { to { stroke-dashoffset:-120; } }
        .airflow-path { fill:none; stroke:var(--accent); stroke-width:3; stroke-dasharray:8 10; stroke-linecap:round; opacity:0.85; animation:dashFlow 4s linear infinite; pointer-events:none; }
        #homeSvg .air-flow-text { font-size:12px; fill:var(--accent); font-weight:bold; }

        /* ===== 模拟器 ===== */
        .sim-layout { display:grid; grid-template-columns:1fr 340px; gap:24px; }
        @media(max-width:1000px){ .sim-layout{grid-template-columns:1fr;} }
        .sim-canvas { background:var(--bg-card); border-radius:var(--radius); padding:16px; border:1px solid var(--border-color); }
        .sim-canvas svg { width:100%; height:auto; display:block; background:var(--bg-card); border-radius:12px; }
        .sim-controls { display:flex; flex-direction:column; gap:14px; }
        .sim-controls .slider-group { background:var(--bg-control); border-radius:var(--radius); padding:12px 16px; border:1px solid var(--border-color); }
        .sim-controls .slider-group label { display:flex; justify-content:space-between; font-size:14px; color:var(--text-secondary); margin-bottom:4px; }
        .sim-controls .slider-group label span:last-child { color:var(--accent); font-weight:700; min-width:32px; text-align:right; }
        .sim-controls input[type=range] { width:100%; height:5px; -webkit-appearance:none; background:var(--border-color); border-radius:10px; outline:none; }
        .sim-controls input[type=range]::-webkit-slider-thumb { -webkit-appearance:none; width:18px; height:18px; border-radius:50%; background:var(--accent); cursor:pointer; box-shadow:0 0 16px var(--accent-glow); border:2px solid var(--bg-card); }
        .sim-controls .range-labels { display:flex; justify-content:space-between; color:var(--text-muted); font-size:10px; margin-top:2px; }
        .preset-select { background:var(--bg-control); border:1px solid var(--border-color); color:var(--text-primary); padding:10px 14px; border-radius:40px; font-size:14px; font-weight:600; width:100%; cursor:pointer; outline:none; }
        .preset-select option { background:var(--bg-card); }
        .action-btn { background:var(--accent); border:none; padding:14px 0; border-radius:60px; font-weight:700; font-size:18px; color:#141926; cursor:pointer; transition:0.2s; box-shadow:0 6px 24px var(--accent-glow); }
        .action-btn:hover { transform:scale(1.02); background:var(--accent-hover); }
        .action-btn:disabled { opacity:0.5; cursor:not-allowed; transform:none; }
        .compare-btn { background:var(--bg-card); color:var(--accent); border:1px solid var(--border-color); font-size:14px; padding:11px 0; box-shadow:none; }
        .compare-btn:hover { background:var(--accent); color:#141926; }
        .principle-jump { background:transparent; border:1px dashed var(--border-color); color:var(--text-secondary); padding:10px 0; border-radius:40px; cursor:pointer; font-weight:600; transition:0.2s; font-size:13px; }
        .principle-jump:hover { border-color:var(--accent); color:var(--accent); }
        .principle-links { display:flex; align-items:center; gap:12px; }
        .principle-tech { color:var(--text-secondary); font-size:13px; text-decoration:underline; text-underline-offset:3px; transition:0.2s; }
        .principle-tech:hover { color:var(--accent); }
        #resultBadge { text-align:center; padding:10px; background:var(--bg-control); border-radius:40px; font-weight:700; font-size:16px; border:1px solid var(--border-color); color:var(--text-secondary); min-height:46px; display:flex; align-items:center; justify-content:center; }
        #resultBadge.active { border-color:var(--accent); color:var(--accent); }
        .status-light { display:inline-block; width:12px; height:12px; border-radius:50%; margin-right:8px; background:var(--border-color); }
        .health-panel { background:var(--bg-control); border-radius:var(--radius); padding:12px 16px; border:1px solid var(--border-color); font-size:14px; color:var(--text-secondary); line-height:1.6; min-height:50px; }
        .health-panel strong { color:var(--accent); }
        .sim-tip { display:flex; align-items:center; gap:10px; background:var(--bg-control); border:1px solid var(--border-color); border-left:4px solid var(--accent); border-radius:var(--radius); padding:11px 16px; font-size:13.5px; color:var(--text-secondary); line-height:1.5; margin-bottom:16px; }
        .sim-tip .sim-tip-icon { font-size:18px; flex-shrink:0; line-height:1; }
        .sim-tip strong { color:var(--accent); }
        .recorder-area { display:flex; gap:8px; flex-wrap:wrap; align-items:center; }
        .recorder-area button { background:var(--bg-card); border:1px solid var(--border-color); color:var(--text-primary); padding:6px 16px; border-radius:40px; cursor:pointer; font-weight:600; transition:0.2s; font-size:13px; }
        .recorder-area button:hover { background:var(--accent); color:#141926; border-color:var(--accent); }
        .recorder-area button.recording {
            background:var(--accent); color:#141926; border-color:var(--accent);
            animation:recPulse 1.1s ease-in-out infinite;
        }
        @keyframes recPulse {
            0%,100% { box-shadow:0 0 0 0 var(--accent-glow); }
            50%     { box-shadow:0 0 0 7px rgba(245,197,66,0); }
        }
        .recorder-area canvas { border-radius:12px; background:var(--bg-card); border:1px solid var(--border-color); width:100%; height:50px; }
        .recorder-area canvas#pitchCanvas { height:40px; margin-top:4px; }
        .mode-selector { display:flex; gap:8px; background:var(--bg-control); padding:4px; border-radius:40px; border:1px solid var(--border-color); }
        .mode-selector button { flex:1; padding:8px 0; border:none; background:transparent; color:var(--text-secondary); font-weight:600; border-radius:30px; cursor:pointer; transition:0.2s; font-size:13px; }
        .mode-selector button.active { background:var(--accent); color:#141926; }

        .organ-svg { transition:filter 0.2s; cursor:pointer; }
        .organ-svg:hover { filter:drop-shadow(0 0 12px var(--accent-glow)); }

        /* ===== Tooltip ===== */
        #tooltip { position:fixed; background:rgba(0,0,0,0.88); backdrop-filter:blur(8px); color:#f0f4ff; padding:10px 16px; border-radius:12px; font-size:13px; pointer-events:none; opacity:0; transition:opacity 0.2s; border:1px solid rgba(255,255,255,0.1); max-width:240px; z-index:999; line-height:1.5; }
        #tooltip .name { font-weight:700; color:var(--accent); font-size:15px; }
        #tooltip .desc { color:#c8d0e0; font-size:12px; }
        .style-realistic #tooltip { background:rgba(50,40,30,0.92); border-color:rgba(200,180,150,0.3); }

        /* ===== 详情视图（独立路由页，保留导航栏） ===== */
        #page-detail .back-btn {
            background: var(--bg-card); border:1px solid var(--border-color);
            color: var(--text-primary); padding:8px 20px;
            border-radius:40px; cursor:pointer; font-weight:600;
            transition:0.2s; margin-bottom:18px; font-size:16px;
        }
        #page-detail .back-btn:hover { background:var(--accent); color:#141926; border-color:var(--accent); }
        #page-detail .detail-title { font-size:32px; font-weight:700; color:var(--accent); margin-bottom:10px; }
        #page-detail .detail-img {
            max-width:100%; max-height:300px; border-radius:12px;
            margin:16px 0; background:var(--bg-control);
            object-fit:contain;
        }
        #page-detail .detail-body {
            max-width:800px; color:var(--text-secondary); font-size:16px; line-height:1.8;
        }
        #page-detail .detail-body ul { padding-left:24px; margin:12px 0; }
        #page-detail .detail-body li { margin:6px 0; }
        #page-detail .detail-body strong { color:var(--text-primary); }

        @media(max-width:768px){
            .nav-links {
                gap:2px; padding:0 4px; flex-direction:column;
                position:absolute; top:64px; left:0; right:0;
                background:var(--bg-nav); border-bottom:1px solid var(--border-color);
                box-shadow:0 12px 30px rgba(0,0,0,0.4);
                padding:10px 12px; align-items:stretch; justify-content:flex-start;
                display:none;
            }
            .nav-links.open { display:flex; }
            .nav-links button { font-size:14px; padding:12px 16px; text-align:left; border-radius:10px; }
            .nav-toggle { display:flex; }
            /* 小屏收紧工具区，配合 .nav-left 可压缩，避免导航项溢出视口 */
            .navbar { gap:6px; }
            .nav-tools { gap:6px; }
            .icon-btn { width:34px; height:34px; }
            .nav-tools .btn-group button { font-size:10px; padding:3px 9px; }
            .nav-logo { font-size:15px; }
            .sim-layout { grid-template-columns:1fr; }
            .main { padding:12px; }
            .page-title { font-size:24px; }
            .card-grid { grid-template-columns:1fr; }
            .navbar { padding:0 12px; }
            .nav-logo-sub { display:none; }
            .detail-overlay { padding:70px 16px 30px; }
            .detail-overlay .back-btn { top:10px; left:12px; padding:6px 14px; font-size:14px; }
            #page-detail .back-btn { padding:6px 14px; font-size:14px; }
        }

        /* ===== 页脚 ===== */
        .footer {
            border-top:1px solid var(--border-color);
            margin-top:40px; padding:28px 24px 40px;
            text-align:center; color:var(--text-secondary); font-size:13px;
        }
        .footer-brand { margin-bottom:12px; }
        .footer-name { font-weight:700; font-size:18px; color:var(--accent); letter-spacing:1px; }
        .footer-name-en { font-size:13px; color:var(--text-muted); font-weight:400; margin-left:4px; }
        .footer-links { margin:8px 0; line-height:1.9; }
        .footer-item { margin:0 10px; }
        .footer-label { color:var(--text-primary); font-weight:600; }
        .footer-links a { color:var(--accent); text-decoration:none; }
        .footer-links a:hover { text-decoration:underline; }
        .footer-disclaimer {
            max-width:800px; margin:12px auto 0; color:var(--text-muted);
            font-size:12px; line-height:1.7;
        }
        .footer-copy { margin-top:14px; color:var(--text-muted); font-size:12px; }
        .footer-name-inline { font-weight:600; color:var(--text-secondary); }

        @media(max-width:768px){
            .footer { padding:20px 16px 32px; }
            .footer-item { display:block; margin:4px 0; }
        }

        /* ===== 访问计数器 ===== */
        .visit-counter {
            text-align:center; margin-top:40px; padding:18px 16px 6px;
            color:var(--text-secondary); font-size:14px;
            display:flex; justify-content:center; align-items:center; gap:6px;
        }
        .visit-icon { font-size:18px; }
        .visit-label { font-weight:600; color:var(--text-primary); }
        .visit-number {
            color:var(--accent); font-weight:700; font-size:20px;
            font-variant-numeric: tabular-nums;
            padding:2px 10px; border-radius:8px;
            background:rgba(245,197,66,0.08); border:1px solid rgba(245,197,66,0.25);
            min-width:80px; display:inline-block; text-align:center;
            letter-spacing:1px;
            transition: transform .25s ease;
        }
        .visit-number.bump { transform: scale(1.08); }

        /* ==================================================================
           新增：无障碍 / 焦点 / 减弱动效
           ================================================================== */
        :focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 6px;
        }
        .card:focus-visible { outline-offset:-2px; }
        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after {
                animation-duration: 0.001ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.001ms !important;
                scroll-behavior: auto !important;
            }
        }
        html { scroll-behavior: smooth; }
        ::selection { background: var(--accent); color:#141926; }

        /* ===== 顶部图标按钮 ===== */
        .icon-btn {
            display:flex; align-items:center; justify-content:center;
            width:38px; height:38px; flex-shrink:0;
            background:var(--bg-control); border:1px solid var(--border-color);
            border-radius:50%; color:var(--text-secondary); cursor:pointer;
            transition:0.2s;
        }
        .icon-btn:hover { color:var(--accent); border-color:var(--accent); transform:scale(1.06); }

        /* ==================================================================
           全站搜索
           ================================================================== */
        .search-mask {
            position:fixed; inset:0; z-index:1000;
            background:rgba(4,7,14,.72); backdrop-filter:blur(6px);
            display:flex; justify-content:center; align-items:flex-start;
            padding:12vh 16px 16px; animation:fadeIn .18s ease;
        }
        .search-mask[hidden] { display:none; }
        .search-box {
            width:100%; max-width:640px; background:var(--bg-card);
            border:1px solid var(--border-color); border-radius:18px;
            box-shadow:0 24px 70px rgba(0,0,0,.55); overflow:hidden;
            display:flex; flex-direction:column; max-height:70vh;
        }
        .search-head {
            display:flex; align-items:center; gap:10px; padding:14px 18px;
            border-bottom:1px solid var(--border-color); color:var(--text-secondary);
        }
        .search-head input {
            flex:1; background:transparent; border:none; outline:none;
            color:var(--text-primary); font-size:16px; font-family:inherit;
        }
        .search-head input::placeholder { color:var(--text-muted); }
        .search-head kbd {
            font-size:11px; padding:3px 7px; border-radius:6px;
            border:1px solid var(--border-color); color:var(--text-muted);
            background:var(--bg-control); font-family:inherit;
        }
        .search-results { overflow-y:auto; padding:8px; flex:1; }
        .search-result {
            display:flex; align-items:center; gap:12px; padding:11px 14px;
            border-radius:12px; cursor:pointer; transition:0.15s;
        }
        .search-result:hover, .search-result.sel { background:var(--bg-card-hover); }
        .search-result .sr-icon { font-size:20px; flex-shrink:0; }
        .search-result .sr-main { flex:1; min-width:0; }
        .search-result .sr-title { font-weight:600; color:var(--text-primary); font-size:15px; }
        .search-result .sr-preview {
            font-size:12px; color:var(--text-muted); line-height:1.5;
            overflow:hidden; text-overflow:ellipsis; display:-webkit-box;
            -webkit-line-clamp:1; -webkit-box-orient:vertical;
        }
        .search-result .sr-sec {
            font-size:11px; color:var(--accent); background:var(--bg-control);
            border:1px solid var(--border-color); border-radius:20px;
            padding:2px 9px; flex-shrink:0; white-space:nowrap;
        }
        .search-empty { padding:34px 18px; text-align:center; color:var(--text-muted); font-size:14px; }
        .search-mark { background:var(--accent); color:#141926; border-radius:3px; padding:0 2px; font-weight:700; }
        .search-foot {
            padding:9px 18px; border-top:1px solid var(--border-color);
            font-size:11px; color:var(--text-muted); text-align:center;
        }
        @media(max-width:768px){ .search-mask { padding:8vh 10px 10px; } .search-foot { display:none; } }

        /* ==================================================================
           首页：数据速览 / 板块入口 / 流程步骤
           ================================================================== */
        .stat-strip {
            display:grid; grid-template-columns:repeat(auto-fit,minmax(130px,1fr));
            gap:12px; margin:22px 0 4px;
        }
        .stat-item {
            background:var(--bg-card); border:1px solid var(--border-color);
            border-radius:14px; padding:14px 12px; text-align:center;
            transition:0.25s;
        }
        .stat-item:hover { border-color:var(--accent); transform:translateY(-3px); box-shadow:var(--shadow); }
        .stat-num {
            font-size:26px; font-weight:800; color:var(--accent); line-height:1.1;
            font-variant-numeric:tabular-nums;
        }
        .stat-num small { font-size:14px; font-weight:600; margin-left:1px; }
        .stat-cap { font-size:12px; color:var(--text-secondary); margin-top:4px; }

        .section-label {
            margin:30px 0 12px; font-size:15px; font-weight:700;
            color:var(--text-secondary); display:flex; align-items:center; gap:10px;
        }
        .section-label::after {
            content:''; flex:1; height:1px;
            background:linear-gradient(90deg,var(--border-color),transparent);
        }

        .home-sections {
            display:grid; grid-template-columns:repeat(auto-fit,minmax(210px,1fr)); gap:14px;
        }
        .home-sec-card {
            background:var(--bg-card); border:1px solid var(--border-color);
            border-radius:14px; padding:16px; cursor:pointer; transition:0.25s;
            display:flex; flex-direction:column; gap:6px; position:relative; overflow:hidden;
        }
        .home-sec-card::before {
            content:''; position:absolute; inset:0 auto 0 0; width:3px;
            background:var(--accent); opacity:0; transition:0.25s;
        }
        .home-sec-card:hover { transform:translateY(-4px); box-shadow:var(--shadow); border-color:var(--accent); }
        .home-sec-card:hover::before { opacity:1; }
        .home-sec-card .hs-icon { font-size:24px; }
        .home-sec-card .hs-title { font-weight:700; font-size:16px; color:var(--text-primary); }
        .home-sec-card .hs-desc { font-size:12px; color:var(--text-muted); line-height:1.6; flex:1; }
        .home-sec-card .hs-count {
            font-size:11px; color:var(--accent); border:1px solid var(--border-color);
            border-radius:20px; padding:2px 9px; align-self:flex-start; background:var(--bg-control);
        }

        .flow-steps { display:grid; grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); gap:12px; }
        .flow-step {
            background:var(--bg-card); border:1px solid var(--border-color);
            border-radius:14px; padding:16px; cursor:pointer; transition:0.25s;
            position:relative; text-align:left;
        }
        .flow-step:hover { border-color:var(--accent); transform:translateY(-3px); box-shadow:var(--shadow); }
        .flow-step .fs-n {
            width:26px; height:26px; border-radius:50%; background:var(--accent); color:#141926;
            font-weight:800; font-size:13px; display:flex; align-items:center;
            justify-content:center; margin-bottom:8px;
        }
        .flow-step .fs-title { font-weight:700; font-size:15px; color:var(--text-primary); }
        .flow-step .fs-desc { font-size:12px; color:var(--text-muted); line-height:1.6; margin-top:4px; }
        .flow-step .fs-organ { font-size:11px; color:var(--accent); margin-top:6px; display:block; }

        /* ==================================================================
           详情页：上下篇 / 正文排版
           ================================================================== */
        .detail-nav {
            display:grid; grid-template-columns:1fr 1fr; gap:12px;
            margin:34px 0 8px; max-width:800px;
        }
        .detail-nav-btn {
            display:flex; align-items:center; gap:10px; text-align:left;
            background:var(--bg-card); border:1px solid var(--border-color);
            border-radius:14px; padding:12px 16px; cursor:pointer;
            transition:0.2s; color:var(--text-primary); font-family:inherit; overflow:hidden;
        }
        .detail-nav-btn.next { justify-content:flex-end; text-align:right; }
        .detail-nav-btn:hover { border-color:var(--accent); background:var(--bg-card-hover); transform:translateY(-2px); }
        .detail-nav-btn:disabled { opacity:.35; cursor:not-allowed; transform:none; }
        .detail-nav-btn .dn-arrow { font-size:18px; color:var(--accent); flex-shrink:0; }
        .detail-nav-btn .dn-text { display:flex; flex-direction:column; min-width:0; }
        .detail-nav-btn .dn-label { font-size:11px; color:var(--text-muted); }
        .detail-nav-btn .dn-title {
            font-size:14px; font-weight:600; white-space:nowrap;
            overflow:hidden; text-overflow:ellipsis;
        }
        @media(max-width:600px){ .detail-nav { grid-template-columns:1fr; } .detail-nav-btn.next { justify-content:flex-start; text-align:left; } }

        #page-detail .detail-body h4 {
            color:var(--accent); font-size:17px; margin:20px 0 8px;
            padding-left:10px; border-left:3px solid var(--accent);
        }
        #page-detail .detail-body p { margin:10px 0; }
        #page-detail .detail-body em { color:var(--text-primary); font-style:italic; }
        #page-detail .detail-body .sources,
        #page-detail .detail-body .source {
            margin-top:22px; padding:12px 16px; font-size:12.5px; line-height:1.8;
            color:var(--text-muted); background:var(--bg-control);
            border:1px dashed var(--border-color); border-radius:12px;
        }
        #page-detail .detail-body .sources strong { color:var(--text-secondary); }

        /* ===== 返回顶部 ===== */
        .to-top {
            position:fixed; right:22px; bottom:22px; z-index:90;
            width:46px; height:46px; border-radius:50%;
            background:var(--bg-card); border:1px solid var(--border-color);
            color:var(--accent); cursor:pointer; display:flex;
            align-items:center; justify-content:center;
            box-shadow:0 8px 26px rgba(0,0,0,.4);
            opacity:0; transform:translateY(14px) scale(.9); pointer-events:none;
            transition:opacity .28s, transform .28s, background .2s;
        }
        .to-top.show { opacity:1; transform:none; pointer-events:auto; }
        .to-top:hover { background:var(--accent); color:#141926; }
        @media(max-width:768px){ .to-top { right:14px; bottom:14px; width:42px; height:42px; } }

        /* ===== 录音计时 ===== */
        .recorder-area { position:relative; }
        .rec-timer {
            width:100%; text-align:center; font-size:12px; font-weight:700;
            color:var(--accent); letter-spacing:1px; font-variant-numeric:tabular-nums;
        }
        .rec-timer[hidden] { display:none; }

        /* ===== noscript ===== */
        .noscript-tip {
            max-width:900px; margin:20px auto; padding:14px 18px; text-align:center;
            background:rgba(245,197,66,.1); border:1px solid var(--accent);
            border-radius:12px; color:var(--text-primary); font-size:14px;
        }

        /* ===== 打印 ===== */
        @media print {
            .navbar, .nav-toggle, .to-top, .visit-counter, footer, .recorder-area, .detail-nav { display:none !important; }
            body { background:#fff; color:#000; padding-top:0; }
            .page { display:none !important; }
            .page.active { display:block !important; }
            .card, .sim-canvas, .sim-controls { border-color:#ccc; box-shadow:none; }
        }