/* roulang page: index */
:root {
            --color-primary: #06B6D4;
            --color-secondary: #3B82F6;
            --color-accent: #10B981;
            --bg-dark: #0B1120;
            --bg-deeper: #020617;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            background-color: var(--bg-deeper);
            color: #f1f5f9;
            overflow-x: hidden;
        }
        .glow-btn {
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.35);
            transition: all 0.25s ease-in-out;
        }
        .glow-btn:hover {
            box-shadow: 0 0 30px rgba(6, 182, 212, 0.7);
            transform: translateY(-2px);
        }
        .glow-card {
            background: rgba(15, 23, 42, 0.7);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(6, 182, 212, 0.2);
            transition: all 0.3s ease;
        }
        .glow-card:hover {
            border-color: rgba(6, 182, 212, 0.55);
            box-shadow: 0 0 25px rgba(6, 182, 212, 0.15);
            transform: translateY(-2px);
        }
        .custom-scroll::-webkit-scrollbar {
            height: 6px;
        }
        .custom-scroll::-webkit-scrollbar-thumb {
            background: rgba(6, 182, 212, 0.3);
            border-radius: 4px;
        }