/* roulang page: index */
:root {
            --brand-primary: #0F4C81;
            --brand-gradient: linear-gradient(135deg, #0F4C81 0%, #1E7B85 50%, #00B4D8 100%);
            --bg-body: #F8FAFC;
        }
        body {
            background-color: var(--bg-body);
            color: #334155;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
        }
        .gradient-brand {
            background: var(--brand-gradient);
        }
        .gradient-text {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .card-hover-fx {
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .card-hover-fx:hover {
            transform: translateY(-6px);
            box-shadow: 0 20px 35px -10px rgba(15, 76, 129, 0.16);
        }