/* roulang page: index */
:root {
            --primary: #0F4C81;
            --primary-light: #1E6091;
            --accent-grad: linear-gradient(135deg, #FF5E3A 0%, #FF2A54 100%);
            --hero-grad: linear-gradient(180deg, #0A1128 0%, #0F2042 100%);
            --card-shadow: 0 10px 25px -5px rgba(15, 76, 129, 0.08), 0 8px 10px -6px rgba(15, 76, 129, 0.04);
            --card-hover-shadow: 0 20px 30px -10px rgba(15, 76, 129, 0.15);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: #334155;
            background-color: #FFFFFF;
        }
        .card-transition {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-transition:hover {
            transform: translateY(-4px);
            box-shadow: var(--card-hover-shadow);
        }
        .hero-pattern {
            background-image: radial-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px);
            background-size: 24px 24px;
        }