/* roulang page: index */
:root {
            --primary: #0A58CA;
            --primary-hover: #084298;
            --dark-navy: #0B192C;
            --accent-cyan: #00A3C4;
            --amber-alert: #EAA023;
            --bg-light: #F4F7FA;
            --text-main: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border-color: #E2E8F0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text-body);
            background-color: #FFFFFF;
            overflow-x: hidden;
        }
        .hero-banner {
            background-image: linear-gradient(rgba(11, 25, 44, 0.85), rgba(11, 25, 44, 0.88)), url('/assets/images/8c03d4f871820cfb.webp');
            background-size: cover;
            background-position: center;
        }
        .card-custom {
            transition: all 0.25s ease-in-out;
            border: 1px solid var(--border-color);
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 32px -6px rgba(10, 88, 202, 0.12);
            border-color: #CBD5E1;
        }
        .faq-item input:checked ~ .faq-content {
            max-height: 240px;
            padding-bottom: 1.25rem;
        }
        .faq-item input:checked ~ label .faq-icon {
            transform: rotate(180deg);
        }
        .hide-scrollbar::-webkit-scrollbar {
            display: none;
        }
        .hide-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }