/* roulang page: index */
:root {
            --primary: #10B981;
            --primary-dark: #059669;
            --dark-surface: #0F172A;
            --dark-deep: #0B0F17;
            --accent: #F97316;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --bg-light: #F8FAFC;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            line-height: 1.75;
            color: var(--text-main);
            background-color: var(--bg-light);
        }
        .hero-pattern {
            background-image: radial-gradient(rgba(16, 185, 129, 0.12) 1px, transparent 1px);
            background-size: 24px 24px;
        }
        .badge-pulse {
            animation: pulse-ring 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
        }
        @keyframes pulse-ring {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.1); }
        }
        .tab-btn.active {
            border-color: #10B981;
            color: #10B981;
            background-color: #ECFDF5;
        }
        .carousel-slide {
            display: none;
            opacity: 0;
            transition: opacity 0.5s ease-in-out;
        }
        .carousel-slide.active {
            display: block;
            opacity: 1;
        }