/* roulang page: index */
:root {
            --primary: #1d4ed8;
            --primary-dark: #1e40af;
            --accent: #f97316;
            --accent-hover: #ea580c;
            --text-dark: #0f172a;
            --text-muted: #475569;
            --border-light: #e2e8f0;
            --bg-page: #f8fafc;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-page);
            color: var(--text-dark);
            overflow-x: hidden;
        }
        .card-shadow {
            box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
            transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-shadow:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 30px -4px rgba(15, 23, 42, 0.12);
        }
        details summary::-webkit-details-marker {
            display: none;
        }
        .text-balance {
            text-wrap: balance;
        }