/* roulang page: index */
:root {
            --primary: #1E3A8A;
            --primary-blue: #2563EB;
            --primary-cyan: #0284C7;
            --surface-bg: #F8FAFC;
            --dark-bg: #0B1120;
            --border-color: #E2E8F0;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            background-color: var(--surface-bg);
            color: #1E293B;
            overflow-x: hidden;
            scroll-behavior: smooth;
        }
        .hero-glow {
            background: radial-gradient(circle at 50% 30%, rgba(37, 99, 235, 0.15) 0%, rgba(2, 132, 199, 0.05) 50%, transparent 80%);
        }
        .card-shadow {
            box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
        }
        .card-shadow-hover:hover {
            box-shadow: 0 20px 35px -8px rgba(37, 99, 235, 0.12), 0 10px 15px -3px rgba(0, 0, 0, 0.04);
            transform: translateY(-4px);
        }
        .hide-scrollbar::-webkit-scrollbar {
            display: none;
        }
        .hide-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }