/* roulang page: index */
:root {
            --primary: #0284c7;
            --primary-dark: #0f172a;
            --accent: #6366f1;
            --surface-bg: #f8fafc;
            --border-color: #e2e8f0;
            --text-main: #1e293b;
            --text-muted: #64748b;
        }

        body {
            font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--surface-bg);
            color: var(--text-main);
            overflow-x: hidden;
        }

        .tabular-nums {
            font-variant-numeric: tabular-nums;
        }

        .grid-bg-pattern {
            background-size: 32px 32px;
            background-image: 
                linear-gradient(to right, rgba(226, 232, 240, 0.4) 1px, transparent 1px),
                linear-gradient(to bottom, rgba(226, 232, 240, 0.4) 1px, transparent 1px);
        }

        .dark-grid-pattern {
            background-size: 32px 32px;
            background-image: 
                linear-gradient(to right, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
                linear-gradient(to bottom, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
        }

        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
        }

        .accordion-content.active {
            max-height: 280px;
        }

        .search-badge {
            transition: all 0.2s ease-in-out;
        }
        .search-badge:hover {
            transform: translateY(-2px);
        }