:root {
            --bg-primary: #f8fafc;
            --bg-secondary: #ffffff;
            --bg-tertiary: #f1f5f9;
            --text-primary: #1e293b;
            --text-secondary: #64748b;
            --text-muted: #94a3b8;
            --border-color: #e2e8f0;
            --accent-color: #2563eb;
            --accent-hover: #1d4ed8;
            --shadow-color: rgba(0, 0, 0, 0.06);
            --card-bg: #ffffff;
            --input-bg: #ffffff;
        }
        
        [data-theme="dark"] {
            --bg-primary: #0f172a;
            --bg-secondary: #1e293b;
            --bg-tertiary: #334155;
            --text-primary: #f8fafc;
            --text-secondary: #cbd5e1;
            --text-muted: #64748b;
            --border-color: #334155;
            --accent-color: #60a5fa;
            --accent-hover: #60a5fa;
            --shadow-color: rgba(0, 0, 0, 0.3);
            --card-bg: #1e293b;
            --input-bg: #1e293b;
        }
        
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: var(--bg-primary);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-primary);
            line-height: 1.6;
            transition: background-color 0.3s ease, color 0.3s ease;
        }

        .navbar {
            position: fixed;
            top: 0; left: 0; right: 0;
            display: flex;
            justify-content: center;
            align-items: center;
            background-color: var(--bg-secondary);
            backdrop-filter: blur(8px);
            box-shadow: 0 1px 3px var(--shadow-color);
            padding: 16px;
            z-index: 100;
            height: 70px;
            transition: background-color 0.3s ease, box-shadow 0.3s ease;
        }
        .navbar-inner {
            width: 100%;
            max-width: 1200px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .navbar-brand {
            display: flex;
            flex-direction: column;
            gap: 2px;
            color: var(--text-primary);
            text-decoration: none;
        }
        .navbar-brand-top {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
        }
        .navbar-brand svg { width: 26px; height: 26px; color: var(--accent-color); }
        .navbar-brand-sub {
            font-size: 11px;
            color: var(--text-muted);
            font-weight: 500;
            padding-left: 36px;
            letter-spacing: 0.5px;
        }

        /* 入场动画（.fade-in 容器与热门榜单项共用） */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(8px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in { animation: fadeInUp 0.25s ease-out; }
        
        .theme-toggle {
            position: fixed;
            top: 16px;
            right: 16px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--bg-secondary);
            border: 2px solid var(--border-color);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 101;
            transition: all 0.3s ease;
            box-shadow: 0 2px 8px var(--shadow-color);
        }
        
        @media (min-width: 1220px) {
            .theme-toggle {
                right: calc((100vw - 1200px) / 2 + 16px);
            }
        }
        .theme-toggle:hover {
            transform: scale(1.1);
            box-shadow: 0 4px 12px var(--shadow-color);
        }
        .theme-toggle svg {
            width: 22px;
            height: 22px;
            color: var(--text-primary);
            transition: color 0.3s ease;
        }
        .theme-toggle .sun-icon { display: none; }
        .theme-toggle .moon-icon { display: block; }
        [data-theme="dark"] .theme-toggle .sun-icon { display: block; }
        [data-theme="dark"] .theme-toggle .moon-icon { display: none; }
        
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--bg-secondary);
            border: 2px solid var(--border-color);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 99;
            transition: all 0.3s ease;
            box-shadow: 0 2px 8px var(--shadow-color);
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
        }
        .back-to-top.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .back-to-top:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px var(--shadow-color);
        }
        .back-to-top svg {
            width: 22px;
            height: 22px;
            color: var(--text-primary);
        }
        
        @media (max-width: 768px) {
            .back-to-top { bottom: 20px; right: 20px; width: 40px; height: 40px; }
            .back-to-top svg { width: 20px; height: 20px; }
        }
        @media (max-width: 480px) {
            .back-to-top { bottom: 16px; right: 16px; width: 38px; height: 38px; }
            .back-to-top svg { width: 18px; height: 18px; }
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 80px 16px 20px;
        }

        .search-header { text-align: center; margin-bottom: 16px; }
        .search-title { font-size: 28px; font-weight: 600; color: var(--text-primary); margin-bottom: 6px; }
        .search-desc { font-size: 14px; color: var(--text-secondary); }

        .search-box {
            display: flex;
            gap: 8px;
            margin: 20px auto;
            width: 100%;
            max-width: 700px;
            padding: 6px;
            background: var(--bg-secondary);
            border-radius: 16px;
            box-shadow: 0 8px 30px var(--shadow-color);
            border: 1px solid var(--border-color);
            transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .search-box input {
            flex: 1;
            /* <input> 的默认固有宽度约 170px，不给 min-width:0 的话它拒绝收缩，
               会在 280~300px 级超窄屏（如 Galaxy Fold 外屏）把搜索框顶出容器 */
            min-width: 0;
            border: none;
            border-radius: 12px;
            padding: 18px 24px;
            font-size: 16px;
            text-align: left;
            letter-spacing: 1px;
            background: var(--input-bg);
            color: var(--text-primary);
        }
        .search-box input:focus { outline: none; box-shadow: 0 0 0 2px var(--accent-color); }
        .search-box button {
            background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
            color: #fff;
            border: none;
            border-radius: 12px;
            padding: 0 40px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s ease;
        }
        .search-box button:hover { transform: translateY(-1px); }

        .error {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 12px 20px;
            background: #fef2f2;
            color: #dc2626;
            border-radius: 12px;
            margin: 16px auto;
            max-width: 700px;
            border: 1px solid #fecaca;
        }
        .error svg { width: 20px; height: 20px; flex-shrink: 0; }
        [data-theme="dark"] .error { background: #450a0a; border-color: #7f1d1d; color: #fca5a5; }

        .main {
            display: grid;
            /* 用 minmax(0,1fr) 而不是 1fr：1fr 的最小值是 auto(=min-content)，
               结果卡里 12 位联行号不换行、二维码面板固定 210px，会把左栏的 min-content
               顶到约 573px，网格整体溢出容器 —— 769~1000px 宽度下出现横向滚动条。 */
            grid-template-columns: minmax(0, 1fr) 320px;
            gap: 20px;
            margin-top: 20px;
        }

        .left, .right {
            background: var(--bg-secondary);
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 4px 20px var(--shadow-color);
            border: 1px solid var(--border-color);
            transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
        }

        /* 右栏 sticky：二维码与热门榜滚动时常驻首屏 */
        .right {
            position: sticky;
            top: 76px;
            align-self: start;
        }

        .empty-state {
            text-align: center;
            padding: 32px 20px;
        }
        .empty-state svg {
            width: 64px;
            height: 64px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .empty-state h2, .empty-state h3 { font-size: 18px; color: var(--text-primary); margin-bottom: 8px; }
        .empty-state p { color: var(--text-secondary); }
        .empty-state-desc { margin-top: 24px; color: var(--text-muted); font-size: 13px; }
        .empty-state-qr { margin-top: 20px; text-align: center; }
        .empty-qr-img { width: 140px; height: 140px; border-radius: 12px; box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
        .empty-qr-hint { margin-top: 10px; font-size: 13px; color: var(--text-muted); }

        .item {
            display: flex;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .item:last-child { border-bottom: none; }
        .item dt, .item dd { margin: 0; }
        .item dt {
            width: 100px;
            min-width: 100px;
            color: var(--text-secondary);
            font-weight: 500;
            flex-shrink: 0;
            word-break: keep-all;
        }
        .item dd {
            color: var(--text-primary);
            font-size: 15px;
            line-height: 1.6;
            word-break: break-all;
            overflow-wrap: break-word;
            -webkit-text-size-adjust: 100%;
        }

        .code-breakdown {
            background: linear-gradient(135deg, #eff6ff 0%, #f8fafc 100%);
            border: 1px solid #bfdbfe;
            border-radius: 12px;
            padding: 14px 16px;
            margin-bottom: 16px;
            text-align: center;
        }
        [data-theme="dark"] .code-breakdown {
            background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
            border-color: #334155;
        }
        .code-breakdown-title {
            font-size: 13px;
            font-weight: 600;
            color: #1e40af;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        [data-theme="dark"] .code-breakdown-title { color: #93c5fd; }
        .code-boxes {
            display: flex;
            gap: 10px;
            justify-content: center;
            align-items: stretch;
        }
        .code-box {
            flex: 1;
            min-width: 0;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 10px 8px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            transition: border-color 0.2s ease;
        }
        [data-theme="dark"] .code-box {
            background: #1e293b;
            border-color: #334155;
        }
        .code-digits {
            font-size: 20px;
            font-weight: 700;
            color: var(--accent-color);
            font-variant-numeric: tabular-nums;
            letter-spacing: 2px;
            line-height: 1.2;
        }
        .code-label {
            font-size: 11px;
            color: var(--text-secondary);
            font-weight: 400;
            margin-top: 4px;
            white-space: nowrap;
        }
        .code-arrow {
            display: flex;
            align-items: center;
            color: var(--text-muted);
            font-size: 14px;
            flex-shrink: 0;
        }

        .code-text {
            color: var(--accent-color);
            font-weight: 600;
            cursor: pointer;
            text-decoration: none !important;
            border-bottom: none !important;
            -webkit-text-decoration: none !important;
        }
        [data-theme="dark"] .code-text {
            color: #ffffff;
        }

        .mini-btn {
            display: inline-block;
            background: #07c160;
            color: #fff;
            font-size: 16px;
            font-weight: bold;
            padding: 12px 48px;
            margin-bottom: 16px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            box-shadow: 0 4px 12px rgba(7,193,96,0.3);
            text-decoration: none;
            transition: all 0.2s;
        }
        .mini-btn:hover {
            background: #06ad56;
            transform: translateY(-1px);
        }
        .mini-btn:active { transform: scale(0.96); }
        .mini-btn.loading { opacity: 0.7; pointer-events: none; position: relative; color: transparent; }
        .mini-btn.loading::after {
            content: "";
            position: absolute; top: 50%; left: 50%;
            width: 20px; height: 20px;
            margin: -10px 0 0 -10px;
            border: 2px solid rgba(255,255,255,0.3);
            border-top-color: #fff;
            border-radius: 50%;
            animation: btn-spin 0.6s linear infinite;
        }
        @keyframes btn-spin { to { transform: rotate(360deg); } }
        .mini-btn.error { background: #e64340; box-shadow: 0 4px 12px rgba(230,67,64,0.3); }
        .qrcode-fallback-tip {
            display: none;
            color: #07c160;
            font-weight: 600;
            font-size: 15px;
            margin-bottom: 8px;
        }
        .qrcode-fallback-tip.show { display: block; }
        .qrcode-img-highlight { outline: 3px solid #07c160; outline-offset: 4px; border-radius: 12px; }

        .hot-title {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
        }
        .hot-title svg { width: 18px; height: 18px; color: var(--accent-color); }
        #hotList > div { color: var(--text-secondary); }

        .hot-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .hot-empty {
            color: var(--text-secondary);
            font-size: 14px;
            text-align: center;
            padding: 20px;
        }
        .hot-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            background: var(--bg-tertiary);
            border-radius: 12px;
            font-size: 14px;
            color: var(--accent-color);
            text-decoration: none;
            font-weight: 600;
            border: 1px solid var(--border-color);
            transition: all 0.2s;
            animation: fadeInUp 0.25s ease-out both;
        }
        .hot-rank {
            width: 22px;
            height: 22px;
            border-radius: 6px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            flex-shrink: 0;
            background: var(--border-color);
            color: var(--text-secondary);
        }
        .hot-item:nth-child(1) .hot-rank { background: #ef4444; color: #fff; }
        .hot-item:nth-child(2) .hot-rank { background: #f97316; color: #fff; }
        .hot-item:nth-child(3) .hot-rank { background: #f59e0b; color: #fff; }
        .hot-item:hover {
            background: var(--accent-color);
            color: #ffffff !important;
            border-color: var(--accent-color);
            transform: translateX(4px);
            box-shadow: 0 2px 8px var(--shadow-color);
        }
        .hot-item:hover .hot-rank { background: rgba(255,255,255,0.25); color: #fff; }
        [data-theme="dark"] .hot-item:hover {
            background: var(--accent-hover);
            color: #ffffff !important;
        }

        /* 详情页结果卡（核心信息置顶，左信息右小程序面板） */
        .result-hero {
            display: flex;
            align-items: center;
            /* 左栏变窄时让二维码面板换到下一行，而不是把卡片撑破。
               配合下面的 flex-basis：主区 320 + 间距 24 + 面板 210 = 554，
               卡片内宽小于 554 时面板才换行。 */
            flex-wrap: wrap;
            gap: 24px;
            background: linear-gradient(135deg, var(--accent-color) 0%, #1d4ed8 100%);
            border-radius: 16px;
            padding: 24px;
            margin-bottom: 20px;
            color: #fff;
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.25);
        }
        /* flex-basis 给 320 而非 0：给 flex 换行一个可计算的基准宽度，否则 basis=0 永远不换行 */
        .result-hero-main { flex: 1 1 320px; min-width: 0; }
        .result-hero-label { font-size: 13px; opacity: 0.85; margin-bottom: 6px; }
        /* 分享按钮紧贴支行名称：名称不再用 flex:1 撑满整行，按钮只占自身宽度跟在文字后面。
           不设 flex-wrap —— 名称有 word-break:break-all，最小宽度仅 1 字，长名称会自动收缩换行，
           按钮始终留在同一行；若允许换行，长名称会把按钮挤到下一行。 */
        .result-hero-name-row {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            margin-bottom: 16px;
        }
        .result-hero-name {
            min-width: 0;
            font-size: 20px;
            font-weight: 700;
            line-height: 1.4;
            word-break: break-all;
        }
        /* 名称首行高 20px*1.4=28px，按钮 36px，上移 4px 使按钮在首行垂直居中 */
        .result-hero-name-row .share-btn { margin-top: -4px; }
        .share-btn {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.16);
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.45);
            border-radius: 50%;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .share-btn:hover { background: rgba(255, 255, 255, 0.28); transform: translateY(-1px); }
        .share-btn:active { transform: scale(0.92); }
        .share-btn svg { width: 17px; height: 17px; }
        .share-btn.copied { background: #10b981; border-color: #10b981; }
        .result-hero-code-row {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .result-hero-code {
            font-family: 'Courier New', monospace;
            font-size: 26px;
            font-weight: 700;
            letter-spacing: 2px;
            background: rgba(255, 255, 255, 0.15);
            padding: 8px 16px;
            border-radius: 10px;
            cursor: pointer;
        }
        .result-hero-meta { margin-top: 14px; font-size: 13px; opacity: 0.85; }

        /* 面包屑。本站没有省市/银行的列表页，所以只做「首页 › 支行」两级 ——
           硬造不存在的中间层级属于虚假面包屑，会被搜索引擎判为误导。 */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 12px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .breadcrumb a { color: var(--accent-color); text-decoration: none; }
        .breadcrumb a:hover { text-decoration: underline; }
        .breadcrumb-sep { color: var(--text-muted); }
        .breadcrumb-current { color: var(--text-secondary); word-break: break-all; }

        /* GEO：答案前置摘要。AI 引擎与精选摘要都偏好可自包含摘录的结论句，
           原先「联行号为 X」只出现在折叠的 FAQ 里，首屏只有视觉化的卡片。 */
        .answer-lead {
            margin-bottom: 20px;
            padding: 14px 16px;
            background: var(--bg-tertiary);
            border-left: 3px solid var(--accent-color);
            border-radius: 8px;
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-primary);
        }
        .answer-lead strong { color: var(--accent-color); }
        /* 结果卡右侧小程序面板：固定白底（深色模式下二维码仍需白底保证可扫） */
        .hero-qr {
            flex-shrink: 0;
            width: 210px;
            /* 换行独占一行时水平居中；未换行时主区 flex-grow 已吃掉全部剩余空间，
               两个 auto 边距恒为 0，不影响原有排版 */
            margin-left: auto;
            margin-right: auto;
            background: #ffffff;
            border-radius: 12px;
            padding: 16px;
            text-align: center;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
        }
        .hero-qr .mini-btn {
            width: 100%;
            font-size: 14px;
            padding: 10px 12px;
            margin-bottom: 0;
        }
        .hero-qr img {
            display: block;
            margin: 12px auto 0;
            width: 130px;
            height: 130px;
            border-radius: 10px;
            object-fit: contain;
        }
        .hero-qr .mini-card-hint { margin-top: 10px; font-size: 12px; color: #64748b; }
        .hero-qr .qrcode-fallback-tip { margin-top: 8px; font-size: 13px; }
        .copy-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #fff;
            color: var(--accent-color);
            border: none;
            border-radius: 10px;
            padding: 10px 18px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
        }
        .copy-btn:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,0,0,0.15); }
        .copy-btn:active { transform: scale(0.96); }
        .copy-btn svg { width: 16px; height: 16px; }
        .copy-btn.copied { background: #10b981; color: #fff; }

        #toast {
            position: fixed;
            top: 24px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--text-primary);
            color: var(--bg-secondary);
            padding: 10px 20px;
            border-radius: 8px;
            font-size: 14px;
            display: none;
            z-index: 999;
        }

        @media (max-width: 768px) {
            /* 同样用 minmax(0,1fr)：单栏下 1fr 的最小值仍是 min-content，
               窄屏（如 320px）会被结果卡内容顶出容器 */
            .main { grid-template-columns: minmax(0, 1fr); }
            /* 首页热门榜提前；详情页保持结果优先，小程序卡/热门榜在主内容之后 */
            .main:not(.is-detail) .right { order: -1; }
            .right { position: static; }
            /* 移动端结果卡纵向堆叠，小程序面板落到信息下方 */
            .result-hero { flex-direction: column; align-items: stretch; gap: 16px; }
            /* 联行号与复制按钮同一行；按钮文案已固定为"复制"两字 */
            .result-hero-code-row { flex-wrap: nowrap; }
            .result-hero-code { font-size: 20px; padding: 6px 12px; letter-spacing: 1px; }
            .copy-btn { padding: 8px 12px; font-size: 13px; flex-shrink: 0; }
            .hero-qr { width: 100%; }
            /* 移动端无扫码场景：面板只留打开按钮 */
            .hero-qr img,
            .hero-qr .mini-card-hint { display: none; }
            .navbar { backdrop-filter: none; }
            .container { padding: 75px 14px 16px; }
            .search-header { margin-bottom: 12px; }
            .search-title { font-size: 22px; margin-bottom: 4px; }
            .search-desc { font-size: 13px; }
            .search-box { margin: 16px auto; }
            .search-box input { padding: 14px 18px; font-size: 15px; }
            .search-box button { padding: 0 28px; font-size: 15px; }
            .main { gap: 16px; margin-top: 16px; }
            .left, .right { padding: 18px; }
            .empty-state { padding: 24px 16px; }
            .empty-state-desc { font-size: 12px; margin-top: 16px; }
            .empty-qr-img { width: 110px; height: 110px; }
            .item { padding: 10px 0; }
            .item dt { font-size: 13px; min-width: auto; word-break: keep-all; }
            .item dd { font-size: 15px; line-height: 1.5; -webkit-text-size-adjust: 100%; }
            .hot-title { margin-bottom: 12px; font-size: 15px; }
            .hot-item { padding: 10px 14px; font-size: 13px; }
            .mini-btn { font-size: 15px; padding: 10px 36px; margin-bottom: 0; }
        }
        @media (max-width: 480px) {
            .navbar-inner { gap: 6px; }
            .search-title { font-size: 20px; }
            .search-desc { font-size: 12px; }
            .search-box { margin: 12px auto; padding: 5px; }
            .search-box input { padding: 12px 16px; font-size: 14px; }
            .search-box button { padding: 0 20px; font-size: 14px; }
            .container { padding: 70px 12px 14px; }
            .main { gap: 14px; margin-top: 14px; }
            .left, .right { padding: 16px; }
            .empty-state { padding: 20px 12px; }
            .empty-state svg { width: 48px; height: 48px; }
            .empty-state h2, .empty-state h3 { font-size: 16px; margin-bottom: 6px; }
            .empty-state p { font-size: 12px; }
            .item { padding: 8px 0; }
            .item dt { font-size: 12px; width: 80px; min-width: auto; word-break: keep-all; }
            .item dd { font-size: 14px; line-height: 1.5; -webkit-text-size-adjust: 100%; }
            .code-breakdown { padding: 14px 10px; margin-bottom: 16px; }
            .code-breakdown-title { font-size: 12px; margin-bottom: 10px; }
            /* 超窄屏（320px 级）放不下「12 位联行号 + 复制按钮」并排，允许换行 */
            .result-hero-code-row { flex-wrap: wrap; }
            .code-boxes { flex-wrap: wrap; gap: 6px; }
            .code-box { flex: 1 1 calc(50% - 3px); padding: 10px 4px; }
            .code-digits { font-size: 22px; letter-spacing: 1px; }
            .code-label { font-size: 11px; margin-top: 4px; }
            .code-arrow { display: none; }
            .hot-title { margin-bottom: 10px; font-size: 14px; }
            .hot-item { padding: 8px 12px; font-size: 12px; gap: 8px; }
        }
        
        /* 240px 级极窄屏（已低于任何在售机型，Galaxy Fold 外屏是 280px）：
           12 位联行号本身占 180px，是整张卡片的 min-content 来源，允许它折行，
           避免整页出现横向滚动条。overflow-wrap:anywhere 会同时把 min-content 降到 1 字，
           所以它只在真的放不下时才生效，正常宽度下无任何影响。 */
        @media (max-width: 300px) {
            .result-hero-code { overflow-wrap: anywhere; }
        }

        .site-footer {
            margin-top: 48px;
            padding: 32px 16px;
            background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
            border-top: 1px solid var(--border-color);
            text-align: center;
            transition: background-color 0.3s ease, border-color 0.3s ease;
        }
        .site-footer .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0;
        }
        .footer-line1 {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 8px;
            font-weight: 500;
        }
        .footer-line2 {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            max-width: 800px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .footer-line1 { font-size: 13px; }
            .footer-line2 { font-size: 12px; }
        }
        
        .info-section {
            margin-top: 40px;
            background: var(--bg-secondary);
            border-radius: 16px;
            padding: 28px;
            box-shadow: 0 4px 20px var(--shadow-color);
            border: 1px solid var(--border-color);
            transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .info-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .info-title svg { width: 20px; height: 20px; color: var(--accent-color); }
        .info-content {
            color: var(--text-secondary);
            line-height: 1.8;
            font-size: 14px;
        }
        .info-content h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 20px 0 10px 0;
        }
        .info-content ul {
            padding-left: 20px;
            margin: 10px 0;
        }
        .info-content li {
            margin: 8px 0;
            color: var(--text-secondary);
        }
        .info-content strong {
            color: var(--text-primary);
            font-weight: 600;
        }
        [data-theme="dark"] .info-content strong { color: var(--accent-color); }
        [data-theme="dark"] .info-content { color: var(--text-secondary); }
        .info-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 16px;
            margin-top: 16px;
        }
        .info-card {
            background: var(--bg-tertiary);
            border-radius: 12px;
            padding: 16px;
            border: 1px solid var(--border-color);
            transition: background-color 0.3s ease, border-color 0.3s ease;
        }
        .info-card h3, .info-card h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-color);
            margin-bottom: 8px;
        }
        .info-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .faq-item {
            background: var(--bg-tertiary);
            border-radius: 10px;
            margin: 10px 0;
            border: 1px solid var(--border-color);
            transition: background-color 0.3s ease, border-color 0.3s ease;
        }
        .faq-question {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 14px 16px;
            cursor: pointer;
            list-style: none;
            user-select: none;
        }
        .faq-question::-webkit-details-marker { display: none; }
        .faq-question::marker { content: none; }
        .faq-question svg { width: 16px; height: 16px; color: #2563eb; flex-shrink: 0; }
        .faq-question span { flex: 1; }
        .faq-chevron {
            color: var(--text-muted) !important;
            transition: transform 0.2s ease;
        }
        .faq-item[open] .faq-chevron { transform: rotate(180deg); }
        .faq-answer {
            font-size: 13px;
            color: #64748b;
            line-height: 1.7;
            padding: 0 16px 14px 40px;
            white-space: pre-line;
        }
        
        @media (max-width: 768px) {
            .info-section { padding: 20px; margin-top: 28px; }
            .info-title { font-size: 16px; margin-bottom: 12px; }
            .info-content { font-size: 13px; }
            .info-content h3 { font-size: 14px; margin: 16px 0 8px 0; }
            .info-grid { grid-template-columns: 1fr; }
            .info-card { padding: 14px; }
            .faq-question { font-size: 13px; padding: 12px 14px; }
            .faq-answer { font-size: 12px; padding: 0 14px 12px 36px; }
        }
        @media (max-width: 480px) {
            .info-section { padding: 16px; margin-top: 24px; }
            .info-title { font-size: 15px; }
            .info-content { font-size: 12px; }
            .info-content h3 { font-size: 13px; }
            .faq-question { font-size: 12px; }
            .faq-answer { font-size: 11px; }
        }