/* roulang page: index */
:root {
            --primary: #1E40AF;
            --primary-dark: #1E3A8A;
            --accent: #0284C7;
            --accent-glow: #38BDF8;
            --bg-light: #F8FAFC;
            --surface: #FFFFFF;
            --text-main: #0F172A;
            --text-muted: #334155;
            --text-sub: #64748B;
            --border-color: #E2E8F0;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            scroll-behavior: smooth;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.6;
            overflow-x: hidden;
        }
        .container-box {
            width: 100%;
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .section-py {
            padding-top: 5.5rem;
            padding-bottom: 5.5rem;
        }
        @media (max-width: 768px) {
            .section-py {
                padding-top: 3.5rem;
                padding-bottom: 3.5rem;
            }
        }
        .card-shadow {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.02);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .card-shadow:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
            border-color: #CBD5E1;
        }
        .gold-vip-badge {
            background: linear-gradient(135deg, #F59E0B, #D97706);
            color: #FFFFFF;
            font-weight: 600;
        }
        .tabular-nums {
            font-variant-numeric: tabular-nums;
        }
        details summary::-webkit-details-marker {
            display: none;
        }