/* roulang page: index */
:root {
            --bg-main: #0A0D14;
            --bg-card: #121722;
            --bg-hover: #182030;
            --primary: #00F298;
            --secondary: #6C5CE7;
            --danger: #FF7675;
            --text-main: #FFFFFF;
            --text-muted: #94A3B8;
            --border-line: rgba(255, 255, 255, 0.08);
        }
        html {
            scroll-behavior: smooth;
            background-color: var(--bg-main);
            color: var(--text-main);
            font-family: 'Inter', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }
        .code-font {
            font-family: 'JetBrains Mono', monospace;
        }
        .glow-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-line);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .glow-card:hover {
            border-color: rgba(0, 242, 152, 0.4);
            box-shadow: 0 0 25px rgba(0, 242, 152, 0.08);
            transform: translateY(-2px);
        }
        .badge-pill {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 500;
            background: rgba(0, 242, 152, 0.1);
            color: var(--primary);
            border: 1px solid rgba(0, 242, 152, 0.2);
        }
        .btn-primary {
            background-color: var(--primary);
            color: #0A0D14;
            font-weight: 600;
            transition: all 0.2s ease;
        }
        .btn-primary:hover {
            box-shadow: 0 0 20px rgba(0, 242, 152, 0.4);
            transform: translateY(-1px);
        }
        .btn-ghost {
            background: transparent;
            color: #FFFFFF;
            border: 1px solid var(--border-line);
            transition: all 0.2s ease;
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.05);
            border-color: rgba(255, 255, 255, 0.2);
        }