/* roulang page: index */
:root {
            --primary-color: #0052CC;
            --accent-color: #FF5500;
            --dark-color: #0F172A;
            --light-bg: #F8FAFC;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--light-bg);
            color: #334155;
            line-height: 1.625;
        }
        .header-shadow {
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }
        .text-glow {
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
        }
        details summary::-webkit-details-marker {
            display: none;
        }