/* roulang page: index */
:root {
            --brand-navy: #0F4C81;
            --brand-teal: #00A887;
            --brand-coral: #F28E2B;
            --brand-dark: #0A192F;
        }
        html { scroll-behavior: smooth; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; }
        .hero-bg {
            background-image: linear-gradient(to right, rgba(10, 25, 47, 0.94), rgba(15, 76, 129, 0.88)), url('/assets/images/a2baebd793f55b0a.jpg');
            background-size: cover;
            background-position: center;
        }
        .deep-tech-bg {
            background-image: linear-gradient(to bottom, rgba(10, 25, 47, 0.97), rgba(15, 76, 129, 0.95)), url('/assets/images/cb89aa698cacda32.jpg');
            background-size: cover;
            background-position: center;
        }