/* roulang page: index */
:root {
            --primary: #0d9488;
            --primary-dark: #0f766e;
            --secondary: #0f172a;
            --bg-light: #f8fafc;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: #ffffff;
            color: #334155;
            line-height: 1.75;
            overflow-x: hidden;
        }
        .hero-banner-bg {
            background-image: linear-gradient(135deg, rgba(15, 23, 42, 0.94), rgba(13, 148, 136, 0.88)), url('/assets/images/1cbef5761f16a957.webp');
            background-size: cover;
            background-position: center;
        }
        .dark-section-bg {
            background-image: linear-gradient(rgba(15, 23, 42, 0.96), rgba(15, 23, 42, 0.98)), url('/assets/images/a2eb1697bb26baf0.webp');
            background-size: cover;
            background-position: center;
        }
        .cta-box-bg {
            background-image: linear-gradient(135deg, rgba(13, 148, 136, 0.95), rgba(15, 23, 42, 0.95)), url('/assets/images/85fdab9dedeba51f.webp');
            background-size: cover;
            background-position: center;
        }