/* roulang page: index */
:root {
            --bg-base: #070B19;
            --bg-surface: #0D152D;
            --bg-elevated: #131F3F;
            --primary: #00E5FF;
            --accent: #00FF87;
            --danger: #FF3B30;
            --text-main: #F1F5F9;
            --text-muted: #94A3B8;
            --border-glow: rgba(0, 229, 255, 0.18);
        }
        body {
            background-color: var(--bg-base);
            color: var(--text-main);
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
        }
        .font-num {
            font-family: 'DIN Alternate', 'Inter', -apple-system, Roboto, sans-serif;
        }
        .glass-panel {
            background: rgba(19, 31, 63, 0.65);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glow);
        }
        .glass-panel-hover {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .glass-panel-hover:hover {
            border-color: rgba(0, 229, 255, 0.45);
            box-shadow: 0 10px 30px -10px rgba(0, 229, 255, 0.25);
            transform: translateY(-2px);
        }
        .glow-btn-primary {
            background: linear-gradient(135deg, #00E5FF 0%, #0099FF 100%);
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.35);
            transition: all 0.3s ease;
        }
        .glow-btn-primary:hover {
            box-shadow: 0 0 30px rgba(0, 229, 255, 0.6);
            transform: translateY(-2px);
        }
        .glow-btn-outline {
            border: 1px solid rgba(0, 229, 255, 0.5);
            background: rgba(0, 229, 255, 0.05);
            backdrop-filter: blur(8px);
            transition: all 0.3s ease;
        }
        .glow-btn-outline:hover {
            background: rgba(0, 229, 255, 0.15);
            border-color: #00E5FF;
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.3);
            transform: translateY(-2px);
        }
        .glow-text-cyan {
            text-shadow: 0 0 12px rgba(0, 229, 255, 0.5);
        }
        .glow-text-green {
            text-shadow: 0 0 12px rgba(0, 255, 135, 0.5);
        }
        .live-dot {
            animation: pulse-dot 1.5s cubic-bezier(0.4, 0, 0.6, 1) infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(1.2); }
        }