/* roulang page: index */
:root {
            --primary: #0066CC;
            --primary-dark: #004C99;
            --accent: #00B4D8;
            --darkbg: #0A192F;
            --surface: #F8FAFC;
            --text-main: #0F172A;
            --text-muted: #64748B;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Source Han Sans CN", sans-serif;
            color: #334155;
            background-color: var(--surface);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        .hero-pattern {
            background: linear-gradient(135deg, rgba(10, 25, 47, 0.92) 0%, rgba(0, 102, 204, 0.82) 100%), url('/assets/images/fa209469e390c40b.webp') center/cover no-repeat;
        }
        .glass-card {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(226, 232, 240, 0.8);
        }
        .dark-glass-card {
            background: rgba(16, 36, 64, 0.85);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(0, 180, 216, 0.2);
        }
        .coupon-ticket {
            position: relative;
            background: #ffffff;
            border: 2px dashed #00B4D8;
            border-radius: 12px;
        }
        .coupon-ticket::before, .coupon-ticket::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            background: #0A192F;
            border-radius: 50%;
            top: 50%;
            transform: translateY(-50%);
        }
        .coupon-ticket::before { left: -11px; }
        .coupon-ticket::after { right: -11px; }