/* roulang page: index */
:root {
            --primary: #5F3DC4;
            --primary-dark: #2D1B69;
            --accent-teal: #00C9A7;
            --accent-cyan: #0EB8E2;
            --bg-base: #F8F9FD;
            --text-title: #1A1D2E;
            --text-body: #4E536A;
            --border-light: rgba(95, 61, 196, 0.08);
            --shadow-card: 0 10px 30px -5px rgba(45, 27, 105, 0.05);
            --shadow-hover: 0 20px 40px -10px rgba(45, 27, 105, 0.12);
        }

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        body {
            background-color: var(--bg-base);
            color: var(--text-body);
            overflow-x: hidden;
        }

        .bento-card {
            background: #FFFFFF;
            border-radius: 20px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .bento-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(95, 61, 196, 0.2);
        }

        .pill-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 9999px;
            background: rgba(95, 61, 196, 0.08);
            color: var(--primary);
            font-size: 0.875rem;
            font-weight: 600;
        }

        .gradient-brand {
            background: linear-gradient(135deg, #2D1B69 0%, #5F3DC4 100%);
        }

        .gradient-accent {
            background: linear-gradient(135deg, #00C9A7 0%, #0EB8E2 100%);
        }

        .gradient-text {
            background: linear-gradient(135deg, #2D1B69 0%, #5F3DC4 60%, #0EB8E2 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-banner-bg {
            background-image: linear-gradient(to bottom, rgba(15, 17, 35, 0.88), rgba(45, 27, 105, 0.82)), url('/assets/images/750de91504d6e4e8.webp');
            background-size: cover;
            background-position: center;
        }

        .section-padding {
            padding-top: 5.5rem;
            padding-bottom: 5.5rem;
        }

        details summary::-webkit-details-marker {
            display: none;
        }