/* roulang page: index */
:root {
            --brand-primary: #10B981;
            --brand-dark: #059669;
            --accent-color: #F59E0B;
            --bg-main: #F8FAFC;
            --card-bg: #FFFFFF;
            --text-title: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border-color: #E2E8F0;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-main);
            color: var(--text-body);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        .custom-shadow {
            box-shadow: 0 10px 30px -5px rgba(16, 185, 129, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
        }

        .card-hover {
            transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 35px -10px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
            border-color: #cbd5e1;
        }

        .hero-bg-pattern {
            background-image: radial-gradient(#10b981 0.75px, transparent 0.75px), radial-gradient(#059669 0.75px, #f8fafc 0.75px);
            background-size: 30px 30px;
            background-position: 0 0, 15px 15px;
            background-opacity: 0.15;
        }

        .smooth-scroll {
            scroll-behavior: smooth;
        }