/* roulang page: index */
:root {
            --primary-navy: #0F1E2E;
            --accent-orange: #FF5E1E;
            --accent-cyan: #00A896;
            --bg-light: #F8FAFC;
        }
        body {
            font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: #1E293B;
            background-color: #FFFFFF;
            line-height: 1.7;
        }
        .text-balance {
            text-wrap: balance;
        }
        .smooth-scroll {
            scroll-behavior: smooth;
        }
        .shadow-soft {
            box-shadow: 0 4px 20px -2px rgba(15, 30, 46, 0.08);
        }
        .card-hover {
            transition: all 0.25s ease-in-out;
        }
        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px -4px rgba(15, 30, 46, 0.12);
        }