/* roulang page: index */
:root {
            --primary: #0F3E36;
            --primary-dark: #0B1E1A;
            --accent: #10B981;
            --gold: #C59B27;
            --bg-light: #F8FAFC;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: #F8FAFC;
            color: #334155;
            overflow-x: hidden;
        }
        .tabular-nums {
            font-variant-numeric: tabular-nums;
        }
        .hero-bg-overlay {
            background: linear-gradient(135deg, rgba(15, 62, 54, 0.94) 0%, rgba(11, 30, 26, 0.98) 100%);
        }
        /* Details Summary 无原生三角符号与过渡 */
        details summary::-webkit-details-marker {
            display: none;
        }
        details summary {
            list-style: none;
        }
        details[open] summary svg {
            transform: rotate(180deg);
        }