/* roulang page: index */
:root {
            --primary: #1D4ED8;
            --accent: #F97316;
            --healthy: #10B981;
            --darkbg: #0F172A;
            --lightbg: #F8FAFC;
            --text-main: #0F172A;
            --text-muted: #64748B;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--lightbg);
            color: #334155;
            -webkit-font-smoothing: antialiased;
        }
        .hero-bg {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(29, 78, 216, 0.78) 100%), url('/assets/images/fcd6327b556cec36.webp') center/cover no-repeat;
        }
        .deep-banner-bg {
            background: linear-gradient(rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.95)), url('/assets/images/858aa1b6f2366782.jpg') center/cover no-repeat;
        }
        .cta-box-bg {
            background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
        }
        .card-custom-shadow {
            box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-custom-shadow:hover {
            box-shadow: 0 20px 25px -5px rgba(29, 78, 216, 0.12);
            transform: translateY(-4px);
        }
        .accordion-content {
            transition: max-height 0.3s ease-out, opacity 0.3s ease-out;
            max-height: 0;
            overflow: hidden;
            opacity: 0;
        }
        .accordion-content.open {
            max-height: 280px;
            opacity: 1;
        }