/* roulang page: index */
:root {
            --color-brand-primary: #0F766E;
            --color-signal-pass: #10B981;
            --color-signal-warn: #F59E0B;
            --color-dark-bg: #0F172A;
            --color-slate-light: #F8FAFC;
        }
        body {
            font-family: PingFang SC, "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            color: #334155;
            background-color: #F8FAFC;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        .hero-pattern {
            background-image: radial-gradient(rgba(15, 118, 110, 0.12) 1px, transparent 1px);
            background-size: 28px 28px;
        }
        .radar-sweep {
            position: relative;
            overflow: hidden;
        }
        .radar-sweep::after {
            content: '';
            position: absolute;
            top: 0; left: -100%; width: 100%; height: 100%;
            background: linear-gradient(90deg, transparent, rgba(16, 185, 129, 0.15), transparent);
            animation: radarSweep 3.5s infinite;
        }
        @keyframes radarSweep {
            0% { left: -100%; }
            100% { left: 100%; }
        }
        details summary::-webkit-details-marker {
            display: none;
        }