/* roulang page: index */
:root {
            --primary: #F95738;
            --primary-hover: #EA580C;
            --secondary: #0284C7;
            --success: #10B981;
            --bg-base: #F8FAFC;
            --bg-muted: #F1F5F9;
            --text-main: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border: #E2E8F0;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-base);
            color: var(--text-body);
            line-height: 1.75;
            overflow-x: hidden;
        }
        .coupon-mask {
            background-image: radial-gradient(circle at 0 center, transparent 12px, #ffffff 13px),
                              radial-gradient(circle at 100% center, transparent 12px, #ffffff 13px);
            background-size: 100% 100%;
        }
        .coupon-mask-dark {
            background-image: radial-gradient(circle at 0 center, transparent 12px, #0F172A 13px),
                              radial-gradient(circle at 100% center, transparent 12px, #0F172A 13px);
            background-size: 100% 100%;
        }
        .coupon-tear-line {
            border-left: 2px dashed #CBD5E1;
        }
        .glow-orange {
            box-shadow: 0 10px 25px -5px rgba(249, 87, 56, 0.3);
        }