/* roulang page: index */
:root {
            --primary: #101826;
            --accent: #00D285;
            --secondary: #F59E0B;
            --bg-light: #F8FAFC;
            --text-main: #1E293B;
            --text-sub: #64748B;
            --border-color: #E2E8F0;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text-main);
            background-color: #ffffff;
            line-height: 1.6;
        }
        .gold-badge {
            background: linear-gradient(135deg, #d4af37 0%, #aa771c 100%);
        }
        .hero-mesh {
            background: radial-gradient(circle at 80% 20%, rgba(0, 210, 133, 0.15) 0%, transparent 40%),
                        radial-gradient(circle at 20% 80%, rgba(245, 158, 11, 0.1) 0%, transparent 40%),
                        linear-gradient(180deg, #101826 0%, #0B0F17 100%);
        }
        .grid-pattern {
            background-image: radial-gradient(rgba(226, 232, 240, 0.6) 1px, transparent 1px);
            background-size: 24px 24px;
        }
        .dark-grid-pattern {
            background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
            background-size: 24px 24px;
        }