/* roulang page: index */
:root {
            --bg-deep: #070B19;
            --bg-card: rgba(16, 26, 54, 0.68);
            --cyan-glow: #00F0FF;
            --blue-tech: #3B82F6;
            --border-glow: rgba(0, 240, 255, 0.22);
            --text-main: #F8FAFC;
            --text-muted: #94A3B8;
        }
        body {
            background-color: var(--bg-deep);
            color: var(--text-main);
            overflow-x: hidden;
        }
        .glass-panel {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glow);
            box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.08), 0 8px 32px rgba(0, 0, 0, 0.45);
        }
        .glass-panel-hover {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .glass-panel-hover:hover {
            border-color: rgba(0, 240, 255, 0.5);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.25), inset 0 1px 1px rgba(255, 255, 255, 0.15);
            transform: translateY(-3px);
        }
        .glow-btn {
            background: linear-gradient(135deg, #00F0FF 0%, #3B82F6 100%);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
            transition: all 0.3s ease;
        }
        .glow-btn:hover {
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.6);
            transform: translateY(-1px);
        }
        .glow-btn:active {
            transform: translateY(1px);
        }
        .glow-btn-outline {
            border: 1px solid #00F0FF;
            box-shadow: inset 0 0 12px rgba(0, 240, 255, 0.2), 0 0 15px rgba(0, 240, 255, 0.2);
            transition: all 0.3s ease;
        }
        .glow-btn-outline:hover {
            background: rgba(0, 240, 255, 0.12);
            box-shadow: inset 0 0 18px rgba(0, 240, 255, 0.4), 0 0 25px rgba(0, 240, 255, 0.4);
        }
        .glow-text {
            text-shadow: 0 0 12px rgba(0, 240, 255, 0.6);
        }
        .scan-line {
            background: linear-gradient(to bottom, transparent 50%, rgba(0, 240, 255, 0.05) 51%);
            background-size: 100% 4px;
        }