/* roulang page: index */
:root {
            --primary-teal: #0F766E;
            --primary-emerald: #059669;
            --dark-surface: #061C18;
            --slate-text: #0F172A;
            --muted-text: #475569;
            --light-bg: #F8FAFC;
            --border-color: #E2E8F0;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--light-bg);
            color: var(--slate-text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        .hero-pattern {
            background-image: radial-gradient(rgba(15, 118, 110, 0.12) 1px, transparent 1px), radial-gradient(rgba(15, 118, 110, 0.12) 1px, #F8FAFC 1px);
            background-size: 28px 28px;
            background-position: 0 0, 14px 14px;
        }
        .card-glow {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-glow:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px -6px rgba(15, 118, 110, 0.15), 0 0 0 1px rgba(16, 185, 129, 0.25);
        }
        details > summary::-webkit-details-marker {
            display: none;
        }