/* roulang page: index */
:root {
            --bg-deep: #0B0C10;
            --bg-card: #12141A;
            --accent-violet: #7928CA;
            --accent-pink: #FF0080;
            --text-main: #FFFFFF;
            --text-sub: #E5E6EB;
            --text-muted: #86909C;
            --border-dim: rgba(255, 255, 255, 0.08);
            --border-active: rgba(121, 40, 202, 0.4);
        }
        html {
            scroll-behavior: smooth;
            background-color: var(--bg-deep);
            color: var(--text-sub);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        body {
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }
        .glow-border {
            border: 1px solid var(--border-dim);
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .glow-border:hover {
            border-color: var(--border-active);
            transform: translateY(-2px);
            box-shadow: 0 10px 30px -10px rgba(121, 40, 202, 0.25);
        }
        .gradient-text {
            background: linear-gradient(135deg, #FFFFFF 0%, #E5E6EB 45%, #7928CA 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .neon-pill {
            background: linear-gradient(90deg, #7928CA 0%, #FF0080 100%);
        }
        .glass-nav {
            background: rgba(11, 12, 16, 0.85);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-dim);
        }
        .custom-scrollbar::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }
        .custom-scrollbar::-webkit-scrollbar-thumb {
            background: #2D3039;
            border-radius: 3px;
        }