/* roulang page: index */
:root {
            --bg-main: #060913;
            --bg-card: rgba(15, 23, 42, 0.7);
            --border-card: rgba(255, 255, 255, 0.08);
            --primary-blue: #0066FF;
            --accent-cyan: #00F2FE;
            --status-green: #10B981;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
        }

        html {
            scroll-behavior: smooth;
            background-color: var(--bg-main);
            color: var(--text-primary);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

        body {
            background-color: var(--bg-main);
            overflow-x: hidden;
        }

        /* 玻璃拟态卡片 */
        .glass-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: 16px;
        }

        .glass-panel-hover {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .glass-panel-hover:hover {
            border-color: rgba(0, 242, 254, 0.3);
            box-shadow: 0 20px 40px -15px rgba(0, 102, 255, 0.25);
            transform: translateY(-4px);
        }

        /* 发光按钮 */
        .btn-glow-primary {
            background: linear-gradient(135deg, #0066FF 0%, #00F2FE 100%);
            box-shadow: 0 0 20px rgba(0, 242, 254, 0.35);
            transition: all 0.3s ease;
        }

        .btn-glow-primary:hover {
            box-shadow: 0 0 28px rgba(0, 242, 254, 0.6);
            transform: scale(1.02);
        }

        .btn-glow-secondary {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: all 0.3s ease;
        }

        .btn-glow-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.3);
            color: #FFFFFF;
        }

        /* 背景装饰网格 */
        .tech-grid-bg {
            background-image: radial-gradient(rgba(0, 102, 255, 0.12) 1px, transparent 1px);
            background-size: 32px 32px;
        }

        /* 渐变文字 */
        .gradient-text {
            background: linear-gradient(135deg, #FFFFFF 20%, #00F2FE 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .gradient-blue-text {
            background: linear-gradient(135deg, #60A5FA 0%, #00F2FE 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }