/* roulang page: index */
:root {
            --primary: #2563eb;
            --primary-dark: #1e3a8a;
            --secondary: #7c3aed;
            --accent-green: #059669;
            --dark-bg: #0f172a;
            --light-bg: #f8fafc;
            --card-radius: 1.25rem;
            --card-radius-lg: 1.5rem;
            --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
            color: #334155;
            background-color: #ffffff;
            -webkit-font-smoothing: antialiased;
        }

        .hero-pattern {
            background-image: linear-gradient(135deg, rgba(30, 58, 138, 0.94) 0%, rgba(15, 23, 42, 0.96) 100%), url('/assets/images/3e9e2cd44ec62d1f.jpg');
            background-size: cover;
            background-position: center;
        }

        .dark-section-bg {
            background-image: linear-gradient(180deg, rgba(15, 23, 42, 0.98) 0%, rgba(30, 41, 59, 0.95) 100%), url('/assets/images/0190e9661f0323d8.webp');
            background-size: cover;
            background-position: center;
        }

        .card-custom {
            border-radius: var(--card-radius);
            transition: var(--transition-smooth);
            box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.05);
        }

        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 30px -10px rgba(37, 99, 235, 0.12);
        }

        .badge-pill {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        /* 优化手风琴指示标 */
        details summary::-webkit-details-marker {
            display: none;
        }
        details summary {
            list-style: none;
        }
        details[open] summary svg {
            transform: rotate(180deg);
        }