/* roulang page: index */
:root {
            --primary: #0B192C;
            --accent: #00E5FF;
            --highlight: #0077FE;
            --bg-light: #F8FAFC;
            --text-main: #0F172A;
            --text-muted: #475569;
            --border-color: rgba(226, 232, 240, 0.9);
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--text-main);
            background-color: #FFFFFF;
            overflow-x: hidden;
        }
        .mono-num {
            font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
            font-feature-settings: "tnum";
            font-variant-numeric: tabular-nums;
        }
        .hero-glow {
            background: radial-gradient(circle at 50% 30%, rgba(0, 229, 255, 0.15) 0%, rgba(11, 25, 44, 0.85) 60%, #070F1E 100%);
        }
        .grid-pattern {
            background-size: 32px 32px;
            background-image: linear-gradient(to right, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
                              linear-gradient(to bottom, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
        }
        .cyber-border {
            border: 1px solid rgba(0, 229, 255, 0.2);
        }
        .custom-scrollbar::-webkit-scrollbar {
            height: 6px;
        }
        .custom-scrollbar::-webkit-scrollbar-track {
            background: #0B192C;
        }
        .custom-scrollbar::-webkit-scrollbar-thumb {
            background: #00E5FF;
            border-radius: 3px;
        }