/* roulang page: index */
:root {
            --primary: #0F52BA;
            --secondary: #0A2540;
            --accent: #00D4B2;
            --cta: #FF6B35;
            --bg-light: #F8FAFC;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-light);
            color: #334155;
            overflow-x: hidden;
        }
        .hero-mesh {
            background: linear-gradient(135deg, rgba(15, 82, 186, 0.95), rgba(10, 37, 64, 0.92)), url('/assets/images/47bec88a23586a4c.webp') center/cover no-repeat;
        }
        .tech-dark-grid {
            background-color: #0B132B;
            background-image: radial-gradient(rgba(0, 212, 178, 0.15) 1px, transparent 0);
            background-size: 24px 24px;
        }