/* roulang page: index */
:root {
            --med-navy: #0F4C81;
            --med-teal: #059669;
            --med-amber: #F59E0B;
            --med-dark: #0B192C;
            --med-bg: #F8FAFC;
            --med-text: #1E293B;
            --med-muted: #64748B;
            --med-border: #E2E8F0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--med-bg);
            color: var(--med-text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        .hero-gradient {
            background: linear-gradient(135deg, rgba(15, 76, 129, 0.95) 0%, rgba(11, 25, 44, 0.92) 100%);
        }
        .stat-card-shadow {
            box-shadow: 0 4px 20px -2px rgba(15, 76, 129, 0.08);
        }
        .med-card-hover {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .med-card-hover:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px -4px rgba(15, 76, 129, 0.12);
        }