:root {
            --bg: #f5f6f8;
            --surface: #ffffff;
            --surface-alt: #f9fafb;
            --border: #e5e7eb;
            --border-hover: #cbd5e1;
            --text: #1e293b;
            --text2: #64748b;
            --text3: #94a3b8;
            --accent: #3b82f6;
            --accent-light: #60a5fa;
            --accent-soft: #eff6ff;
            --green: #10b981;
            --green-soft: #ecfdf5;
            --orange: #f59e0b;
            --radius: 14px;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.06),0 1px 3px rgba(0,0,0,0.04);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.07),0 2px 6px rgba(0,0,0,0.03);
            --transition: 0.22s cubic-bezier(0.4,0,0.2,1);
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            background: var(--bg); color: var(--text); line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        .container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

        /* 导航栏——与首页一致 */
        .navbar {
            background: rgba(255,255,255,0.82); backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--border);
            position: sticky; top: 0; z-index: 100;
        }
        .nav-inner {
            display: flex; align-items: center; justify-content: space-between;
            flex-wrap: wrap; gap: 8px; padding: 10px 0;
        }
        .logo { font-weight: 700; font-size: 1.25rem; color: var(--text); letter-spacing: -0.4px; white-space: nowrap; }
        .logo .dot { color: var(--accent); font-weight: 800; }
        .nav-links { display: flex; align-items: center; gap: 2px; flex-wrap: wrap; }
        .nav-links a {
            color: var(--text2); text-decoration: none; padding: 7px 13px;
            border-radius: 20px; font-size: 0.88rem; font-weight: 500;
            transition: var(--transition); white-space: nowrap; letter-spacing: -0.1px;
        }
        .nav-links a:hover { color: var(--accent); background: var(--accent-soft); }
        .nav-links a.active { color: var(--accent); background: var(--accent-soft); font-weight: 600; }
        .nav-links a.nav-cta {
            background: var(--accent); color: #fff; border-radius: 20px;
            padding: 8px 18px; font-weight: 600; margin-left: 4px;
            box-shadow: 0 2px 12px rgba(59,130,246,0.25); transition: var(--transition);
        }
        .nav-links a.nav-cta:hover { background: #2563eb; box-shadow: 0 4px 20px rgba(59,130,246,0.35); transform: translateY(-1px); color: #fff; }
        .nav-flow-sep { color: var(--text3); font-size: 0.65rem; margin: 0 1px; user-select: none; pointer-events: none; }
        @media (max-width: 768px) {
            .nav-flow-sep { display: none; }
            .nav-links a { padding: 6px 10px; font-size: 0.78rem; border-radius: 16px; }
            .nav-links a.nav-cta { padding: 7px 14px; margin-left: 0; }
            .logo { font-size: 1.1rem; }
        }

        /* 页面顶部 */
        .page-hero {
            background: var(--surface); border: 1px solid var(--border);
            border-radius: 20px; padding: 36px 28px; margin: 28px 0 24px;
            box-shadow: var(--shadow-md); text-align: center;
        }
        .eyebrow { color: var(--accent); font-weight: 600; font-size: 0.85rem; letter-spacing: 0.4px; margin-bottom: 8px; }
        .page-hero h1 { font-size: 2rem; font-weight: 700; letter-spacing: -0.5px; margin: 0 0 8px; }
        .page-hero p { color: var(--text2); font-size: 1rem; max-width: 600px; margin: 0 auto; }

        /* 通用区块 */
        .section { padding: 18px 0; }
        .section-title { font-size: 1.5rem; font-weight: 700; text-align: center; margin: 0 0 6px; letter-spacing: -0.3px; }
        .section-sub { text-align: center; color: var(--text2); font-size: 0.9rem; margin: 0 0 24px; }

        /* 信息卡片 */
        .info-card {
            background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
            padding: 22px 24px; margin: 0 0 24px; box-shadow: var(--shadow-sm);
        }

        /* 推荐器 */
        .recommender {
            background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
            padding: 22px 24px; margin: 0 0 28px; box-shadow: var(--shadow-sm);
        }
        .recommender h2 { font-size: 1.25rem; font-weight: 700; margin-bottom: 6px; }
        .check-group { display: flex; flex-wrap: wrap; gap: 10px; margin: 12px 0; }
        .check-pill {
            background: var(--surface-alt); border: 1px solid var(--border); border-radius: 24px;
            padding: 8px 18px; font-size: 0.85rem; cursor: pointer; display: flex; align-items: center; gap: 6px;
            transition: var(--transition); font-weight: 500;
            -webkit-user-select: none; user-select: none;
        }
        .check-pill:hover { border-color: var(--accent-light); background: #fff; }
        .check-pill input[type="checkbox"] { accent-color: var(--accent); }
        .result-box {
            background: var(--accent-soft); border-radius: 12px; padding: 14px 18px;
            font-size: 0.9rem; color: var(--text); margin-top: 12px;
        }
        .result-links { margin-top: 8px; display: flex; gap: 10px; flex-wrap: wrap; }
        .result-link {
            color: var(--accent); font-weight: 600; font-size: 0.82rem; text-decoration: none;
            padding: 4px 12px; background: #fff; border-radius: 16px; border: 1px solid var(--border);
            transition: var(--transition);
        }
        .result-link:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

        /* 模式对比卡片 */
        .compare-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin: 8px 0 24px; }
        .mode-card {
            background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
            padding: 22px 18px; text-align: center; box-shadow: var(--shadow-sm); transition: var(--transition);
        }
        .mode-card:hover { border-color: var(--accent-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }
        .mode-icon { font-size: 2rem; margin-bottom: 8px; }
        .mode-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 6px; }
        .mode-card p { color: var(--text2); font-size: 0.82rem; margin-bottom: 10px; }
        .mode-badge {
            display: inline-block; padding: 4px 12px; border-radius: 20px; font-size: 0.7rem; font-weight: 700;
        }
        .badge-global { background: #fef3c7; color: #b45309; }
        .badge-rule { background: var(--accent-soft); color: var(--accent); }
        .badge-direct { background: #f1f5f9; color: var(--text2); }

        .tip-box {
            background: var(--accent-soft); border-left: 4px solid var(--accent); padding: 12px 16px;
            border-radius: 6px; font-size: 0.85rem; color: var(--text); margin: 16px 0;
        }
        .tip-box a { color: var(--accent); font-weight: 600; }

        /* 场景卡片 */
        .scene-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin: 8px 0 24px; }
        .scene-card {
            background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
            padding: 20px 18px; box-shadow: var(--shadow-sm); transition: var(--transition);
        }
        .scene-card:hover { border-color: var(--accent-light); transform: translateY(-2px); }
        .scene-card h4 { font-weight: 700; margin-bottom: 6px; }
        .scene-card p { color: var(--text2); font-size: 0.82rem; margin-bottom: 8px; }
        .scene-link { color: var(--accent); font-weight: 600; font-size: 0.8rem; text-decoration: none; }
        .scene-link:hover { text-decoration: underline; }

        /* 代码块 */
        .code-block {
            background: #1e293b; color: #e2e8f0; border-radius: 12px; padding: 16px 20px;
            font-family: 'SF Mono', 'Cascadia Code', 'Consolas', monospace; font-size: 0.8rem;
            line-height: 1.7; overflow-x: auto; margin: 16px 0;
        }

        /* Clash迁移创意卡片 */
        .clash-migration {
            background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
            border: 1px solid #fed7aa; border-radius: var(--radius); padding: 22px 24px;
            margin: 28px 0; display: flex; flex-wrap: wrap; gap: 18px; align-items: center;
            box-shadow: var(--shadow-sm);
        }
        .clash-migration h3 { font-size: 1.15rem; font-weight: 700; }
        .clash-migration p { color: var(--text2); font-size: 0.88rem; flex: 1; }
        .clash-btn {
            background: var(--accent); color: #fff; padding: 10px 22px; border-radius: 24px;
            font-weight: 600; text-decoration: none; font-size: 0.85rem; transition: var(--transition);
            white-space: nowrap;
        }
        .clash-btn:hover { background: #2563eb; transform: translateY(-1px); }

        /* 底部矩阵 */
        .bottom-matrix {
            display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin: 20px 0 28px;
        }
        .matrix-item {
            background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
            padding: 16px 20px; text-decoration: none; color: var(--text); font-weight: 600;
            font-size: 0.88rem; display: flex; align-items: center; gap: 8px;
            box-shadow: var(--shadow-sm); transition: var(--transition);
        }
        .matrix-item:hover { border-color: var(--accent-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }
        .matrix-icon { font-size: 1.3rem; }

        /* CTA下载号召 */
        .cta-download {
            background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
            border: 1px solid #bfdbfe; border-radius: 20px; padding: 32px 24px;
            text-align: center; margin: 24px 0 20px;
        }
        .cta-download h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 6px; }
        .cta-download p { color: var(--text2); margin-bottom: 18px; }
        .btn-download-cta {
            display: inline-block; padding: 12px 28px; border-radius: 28px; font-weight: 700;
            text-decoration: none; background: var(--accent); color: #fff;
            box-shadow: 0 4px 16px rgba(59,130,246,0.3); transition: var(--transition);
        }
        .btn-download-cta:hover { background: #2563eb; transform: translateY(-2px); box-shadow: 0 6px 22px rgba(59,130,246,0.4); }

        /* Footer */
        .footer {
            border-top: 1px solid var(--border); padding: 22px 16px; text-align: center; background: var(--surface); margin-top: 20px;
        }
        .footer-links { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-bottom: 10px; }
        .footer-links a { color: var(--text2); text-decoration: none; font-size: 0.8rem; transition: var(--transition); }
        .footer-links a:hover { color: var(--accent); }
        .copyright { color: var(--text3); font-size: 0.7rem; }

        @media (max-width: 600px) {
            .page-hero h1 { font-size: 1.5rem; }
            .clash-migration { flex-direction: column; align-items: flex-start; }
        }