/* roulang page: index */
:root {
            --brand-primary: #0D3B36;
            --brand-accent: #E5A93C;
            --brand-mint: #10B981;
            --brand-bg: #F8FAFC;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--brand-bg);
            color: #1E293B;
            overflow-x: hidden;
        }
        .hero-gradient {
            background: linear-gradient(135deg, rgba(13, 59, 54, 0.95) 0%, rgba(21, 94, 84, 0.9) 60%, rgba(26, 75, 110, 0.85) 100%);
        }
        .card-shadow {
            box-shadow: 0 10px 30px -5px rgba(13, 59, 54, 0.05), 0 8px 12px -6px rgba(0, 0, 0, 0.03);
        }
        .card-hover {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 35px -5px rgba(13, 59, 54, 0.12), 0 10px 15px -5px rgba(0, 0, 0, 0.04);
        }
        .video-overlay-pattern {
            background-image: radial-gradient(rgba(255, 255, 255, 0.15) 1px, transparent 1px);
            background-size: 24px 24px;
        }