/* roulang page: index */
:root {
            --primary: #1E40AF;
            --primary-hover: #1D4ED8;
            --secondary: #0284C7;
            --dark: #0F172A;
            --bg-light: #F8FAFC;
            --text-main: #0F172A;
            --text-sub: #334155;
            --text-muted: #64748B;
            --border-color: #E2E8F0;
        }
        html {
            scroll-behavior: smooth;
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
        }
        .hero-banner {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(30, 64, 175, 0.88) 100%), url('/assets/images/3f954aa06f040be4.webp') center/cover no-repeat;
        }
        .stat-card-glow {
            box-shadow: 0 10px 25px -5px rgba(2, 132, 199, 0.1), 0 8px 10px -6px rgba(2, 132, 199, 0.1);
        }