/* roulang page: index */
:root {
            --bg-deep: #0B0E14;
            --surface-elevated: #151A23;
            --border-card: #1D2330;
            --primary-indigo: #6366F1;
            --accent-emerald: #10B981;
            --text-main: #F1F5F9;
            --text-muted: #94A3B8;
        }
        body {
            background-color: var(--bg-deep);
            color: var(--text-main);
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
        }
        .glow-indigo {
            box-shadow: 0 0 35px -8px rgba(99, 102, 241, 0.28);
        }
        .glow-emerald {
            box-shadow: 0 0 35px -8px rgba(16, 185, 129, 0.28);
        }
        .hero-pattern {
            background-image: radial-gradient(rgba(99, 102, 241, 0.15) 1px, transparent 1px);
            background-size: 32px 32px;
        }