/* roulang page: index */
:root {
            --primary: #0F4C81;
            --secondary: #1E3A8A;
            --accent: #F59E0B;
            --surface: #FFFFFF;
            --bg-body: #F8FAFC;
            --text-main: #0F172A;
            --text-muted: #475569;
            --border-soft: rgba(226, 232, 240, 0.8);
            --radius-card: 1.5rem;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-body);
            color: var(--text-main);
            overflow-x: hidden;
            line-height: 1.6;
        }

        .badge-pill {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.875rem;
            border-radius: 9999px;
            font-size: 0.8125rem;
            font-weight: 600;
            line-height: 1.25rem;
            backdrop-filter: blur(8px);
        }

        .hero-pattern {
            background-image: radial-gradient(rgba(15, 76, 129, 0.08) 1px, transparent 1px);
            background-size: 24px 24px;
        }

        .card-custom {
            background-color: var(--surface);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: 0 25px 30px -5px rgba(15, 76, 129, 0.12), 0 10px 12px -5px rgba(15, 76, 129, 0.04);
            border-color: rgba(15, 76, 129, 0.2);
        }

        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease-out, opacity 0.25s ease-out;
            opacity: 0;
        }

        .accordion-item.active .accordion-content {
            max-height: 300px;
            opacity: 1;
        }

        .accordion-item.active .accordion-icon {
            transform: rotate(180deg);
        }

        .accordion-item.active {
            border-color: #0F4C81;
        }