/* roulang page: index */
:root {
            --bg-main: #0D1117;
            --bg-secondary: #161B22;
            --primary: #00F2FE;
            --secondary: #4FACFE;
            --accent-purple: #7F00FF;
            --accent-orange: #FF6A00;
            --text-main: #F0F6FC;
            --text-muted: #8B949E;
            --border-line: #30363D;
        }
        body {
            background-color: var(--bg-main);
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
        }
        .text-gradient {
            background: linear-gradient(135deg, #00F2FE 0%, #4FACFE 50%, #7F00FF 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .text-gradient-orange {
            background: linear-gradient(135deg, #FF6A00 0%, #E100FF 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .border-glow:hover {
            border-color: rgba(0, 242, 254, 0.4);
            box-shadow: 0 0 20px rgba(0, 242, 254, 0.2);
        }
        .hero-pattern {
            background-image: radial-gradient(rgba(0, 242, 254, 0.1) 1px, transparent 1px);
            background-size: 32px 32px;
        }