/* roulang page: index */
:root {
            --primary: #0F52BA;
            --primary-dark: #0B3C8A;
            --accent: #00D26A;
            --accent-orange: #FF6B00;
            --bg-light: #F8FAFC;
            --text-main: #0F172A;
            --text-muted: #64748B;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            background-color: var(--bg-light);
            color: #334155;
        }
        .hero-video-bg {
            background-image: linear-gradient(to bottom, rgba(11, 19, 43, 0.85), rgba(15, 82, 186, 0.8)), url('/assets/images/68650d9bb2042e68.png');
            background-size: cover;
            background-position: center;
        }
        .gradient-dark-section {
            background-color: #0B132B;
            background-image: radial-gradient(circle at 50% 50%, #1C2541 0%, #0B132B 100%);
        }