/* roulang page: index */
:root {
            --bg-dark: #0C0F17;
            --primary: #00E5FF;
            --accent-violet: #7C3AED;
            --accent-emerald: #10B981;
            --border-glow: rgba(0, 229, 255, 0.18);
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-dark);
            color: #F1F5F9;
            overflow-x: hidden;
        }
        .glow-cyan {
            box-shadow: 0 0 25px rgba(0, 229, 255, 0.2);
        }
        .glow-card:hover {
            box-shadow: 0 10px 30px -10px rgba(0, 229, 255, 0.25);
            border-color: rgba(0, 229, 255, 0.4);
            transform: translateY(-4px);
        }
        details summary::-webkit-details-marker {
            display:none;
        }
        details[open] summary svg {
            transform: rotate(180deg);
        }