/* roulang page: index */
:root {
            --bg-base: #0A0F1D;
            --bg-card: rgba(17, 24, 39, 0.75);
            --border-glass: rgba(255, 255, 255, 0.08);
            --cyan-glow: #00E5FF;
        }
        body {
            background-color: var(--bg-base);
            color: #94A3B8;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
        }
        .glass-panel {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
        }
        .glass-panel-hover:hover {
            border-color: rgba(0, 229, 255, 0.35);
            box-shadow: 0 8px 32px 0 rgba(0, 229, 255, 0.12);
            transform: translateY(-3px);
            transition: all 0.3s ease;
        }
        .glow-btn {
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.35);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .glow-btn:hover {
            box-shadow: 0 0 30px rgba(0, 229, 255, 0.6);
            transform: scale(1.02);
        }