/* roulang page: index */
:root {
            --bg-main: #070d19;
            --bg-secondary: #0c1527;
            --bg-card: rgba(17, 29, 53, 0.65);
            --border-card: rgba(255, 255, 255, 0.08);
            --color-primary: #2563eb;
            --color-cyan: #06b6d4;
            --color-emerald: #10b981;
            --color-text-main: #ffffff;
            --color-text-muted: #94a3b8;
        }

        body {
            background-color: var(--bg-main);
            color: #e2e8f0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
        }

        /* 玻璃拟态卡片 */
        .glass-panel {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-card);
            transition: all 0.3s ease;
        }

        .glass-panel:hover {
            border-color: rgba(6, 182, 212, 0.35);
            box-shadow: 0 10px 30px -10px rgba(6, 182, 212, 0.15);
        }

        /* 发光按钮 */
        .glow-btn {
            background: linear-gradient(135deg, #2563eb, #06b6d4);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
        }

        .glow-btn:hover {
            box-shadow: 0 0 25px rgba(6, 182, 212, 0.55);
            transform: translateY(-2px);
        }

        .glow-btn:active {
            transform: scale(0.96);
        }

        .glow-outline-btn {
            border: 1px solid rgba(6, 182, 212, 0.6);
            background: rgba(6, 182, 212, 0.05);
            color: #38bdf8;
            transition: all 0.3s ease;
        }

        .glow-outline-btn:hover {
            background: rgba(6, 182, 212, 0.15);
            border-color: #38bdf8;
            box-shadow: 0 0 15px rgba(6, 182, 212, 0.3);
        }

        /* 呼吸光点 */
        .pulse-dot {
            animation: pulseGlow 2s infinite;
        }

        @keyframes pulseGlow {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(1.2); }
        }

        /* 网格背景线 */
        .bg-grid {
            background-size: 40px 40px;
            background-image: 
                linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
        }