/* roulang page: index */
:root {
            --primary: #0F4C81;
            --accent: #00A896;
            --highlight: #FF5722;
            --bg-light: #F8FAFC;
            --text-main: #0A0E17;
            --text-body: #334155;
            --text-muted: #64748B;
        }
        body {
            font-family: var(--font-sans, system-ui, -apple-system, sans-serif);
            color: var(--text-body);
            background-color: #FFFFFF;
            overflow-x: hidden;
        }
        .text-main { color: var(--text-main); }
        .bg-surface { background-color: var(--bg-light); }
        .hero-bg {
            background-image: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(15, 76, 129, 0.82) 100%), url('/assets/images/5085c03a66ef1cd9.png');
            background-size: cover;
            background-position: center;
        }
        .card-elevated {
            background: #FFFFFF;
            border: 1px solid #E2E8F0;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-elevated:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px -4px rgba(15, 76, 129, 0.12);
            border-color: #CBD5E1;
        }
        .dark-strip-bg {
            background-image: radial-gradient(circle at top right, #1E293B 0%, #0F172A 100%), url('/assets/images/6d45cc8cc1d66280.png');
            background-size: cover;
            background-blend-mode: overlay;
        }
        .accordion-content {
            transition: max-height 0.3s ease-out, opacity 0.3s ease-out;
            max-height: 0;
            overflow: hidden;
            opacity: 0;
        }
        .accordion-content.active {
            max-height: 250px;
            opacity: 1;
        }