/* roulang page: index */
:root {
            --primary-dark: #0E1318;
            --primary-accent: #D97706;
            --primary-accent-hover: #B45309;
            --border-light: #E2E8F0;
            --border-dark: #1E293B;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: #F8FAFC;
            color: #334155;
            overflow-x: hidden;
        }
        /* 优惠券票据立体锯齿与视觉质感 */
        .coupon-card {
            position: relative;
            background: linear-gradient(135deg, #1A222C 0%, #11171E 100%);
            border: 1px solid #334155;
        }
        .coupon-card::before, .coupon-card::after {
            content: '';
            position: absolute;
            top: 50%;
            width: 22px;
            height: 22px;
            background-color: #0E1318;
            border-radius: 50%;
            transform: translateY(-50%);
            z-index: 10;
        }
        .coupon-card::before { left: -11px; }
        .coupon-card::after { right: -11px; }
        .coupon-perforation {
            border-left: 2px dashed rgba(217, 119, 6, 0.4);
        }
        /* 微交互质感 */
        .card-elevate {
            transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-elevate:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 30px -10px rgba(15, 23, 42, 0.12);
        }
        .badge-pulse {
            position: relative;
        }
        .badge-pulse::after {
            content: '';
            position: absolute;
            width: 8px;
            height: 8px;
            background-color: #10B981;
            border-radius: 50%;
            top: 50%;
            left: -12px;
            transform: translateY(-50%);
            box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
            animation: pulse-ring 2s infinite;
        }
        @keyframes pulse-ring {
            0% { transform: translateY(-50%) scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
            70% { transform: translateY(-50%) scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
            100% { transform: translateY(-50%) scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
        }