/* roulang page: index */
:root {
            --primary: #0F172A;
            --indigo: #4F46E5;
            --accent: #FF5722;
            --night: #090D16;
            --soft-bg: #F8FAFC;
            --border-color: #E2E8F0;
            --text-main: #1E293B;
            --text-muted: #64748B;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--soft-bg);
            color: var(--text-main);
            overflow-x: hidden;
        }
        .header-glass {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
        }
        .coral-gradient {
            background: linear-gradient(135deg, #FF5722 0%, #FF7043 100%);
        }
        .indigo-gradient {
            background: linear-gradient(135deg, #4F46E5 0%, #6366F1 100%);
        }
        .card-custom {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: 14px;
            box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-custom:hover {
            transform: translateY(-4px);
            border-color: #CBD5E1;
            box-shadow: 0 12px 30px -4px rgba(15, 23, 42, 0.12);
        }
        .btn-coral {
            background-color: var(--accent);
            color: #ffffff;
            transition: all 0.25s ease;
        }
        .btn-coral:hover {
            background-color: #F4511E;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px -2px rgba(255, 87, 34, 0.38);
        }
        .hero-bg {
            background-image: linear-gradient(180deg, rgba(15, 23, 42, 0.88) 0%, rgba(9, 13, 22, 0.95) 100%), url('/assets/images/3eb608a6d0a98dad.webp');
            background-size: cover;
            background-position: center;
        }
        .dark-section-bg {
            background-image: linear-gradient(180deg, rgba(9, 13, 22, 0.96) 0%, rgba(15, 23, 42, 0.98) 100%), url('/assets/images/16bc45eb18a639e4.webp');
            background-size: cover;
            background-position: center;
        }