/* roulang page: index */
:root {
            --primary: #1E40AF;
            --primary-dark: #0F172A;
            --primary-light: #3B82F6;
            --accent-green: #10B981;
            --accent-amber: #F59E0B;
            --bg-light: #F8FAFC;
        }
        body {
            font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
            color: #1E293B;
            line-height: 1.75;
            background-color: #FFFFFF;
        }
        .hero-pattern {
            background-image: linear-gradient(135deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 64, 175, 0.9) 100%), url('/assets/images/8381dcadb72bf35b.webp');
            background-size: cover;
            background-position: center;
        }
        .cta-pattern {
            background-image: linear-gradient(135deg, rgba(15, 23, 42, 0.98) 0%, rgba(30, 64, 175, 0.95) 100%), url('/assets/images/67be08fe82c873ad.webp');
            background-size: cover;
            background-position: center;
        }
        .card-shadow {
            box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
            transition: all 0.3s ease;
        }
        .card-shadow:hover {
            box-shadow: 0 10px 25px -3px rgba(15, 23, 42, 0.12);
            transform: translateY(-2px);
        }