/* roulang page: index */
:root {
            --primary-color: #0f4c81;
            --secondary-color: #0d6e6e;
            --accent-color: #f26419;
            --text-main: #1f2937;
            --text-muted: #64748b;
            --bg-light: #f8fafc;
            --border-color: #e2e8f0;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text-main);
            background-color: #ffffff;
            line-height: 1.75;
        }
        .hero-pattern {
            background-image: linear-gradient(to right, rgba(15, 76, 129, 0.95), rgba(13, 110, 110, 0.88)), url('/assets/images/e61b418f51862b7b.webp');
            background-size: cover;
            background-position: center;
        }
        .cta-bg {
            background-image: linear-gradient(to right, rgba(15, 23, 42, 0.96), rgba(15, 76, 129, 0.92)), url('/assets/images/fb68b6f68da95c6e.jpg');
            background-size: cover;
            background-position: center;
        }
        .timeline-line::before {
            content: '';
            position: absolute;
            top: 24px;
            left: 0;
            right: 0;
            height: 2px;
            background: #cbd5e1;
            z-index: 1;
        }
        @media (max-width: 768px) {
            .timeline-line::before {
                display: none;
            }
        }