/* roulang page: index */
:root {
            --hth-primary: #2E7DBF;
            --hth-primary-dark: #1C5C89;
            --hth-primary-light: #E5F0F8;
            --hth-accent: #C79A54;
            --hth-body-bg: #F6F9FC;
            --hth-white: #FFFFFF;
            --hth-text: #1F2A35;
            --hth-text-secondary: #5B6B7A;
            --hth-text-muted: #7B8A99;
            --hth-border: #DCE7EF;
            --hth-card-border: #E3EBF2;
            --hth-footer-bg: #233039;
            --hth-footer-text: #EAF0F5;
            --hth-footer-link: #B7C3CC;
            --hth-radius-lg: 16px;
            --hth-radius-md: 8px;
            --hth-radius-sm: 4px;
            --hth-radius-image: 12px;
            --hth-shadow: 0 6px 24px rgba(26, 45, 80, 0.06);
            --hth-shadow-hover: 0 14px 34px rgba(26, 45, 80, 0.10);
            --hth-transition: 0.25s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background-color: var(--hth-body-bg);
            color: var(--hth-text);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
            font-weight: 400;
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            height: auto;
        }

        a {
            color: var(--hth-primary);
            text-decoration: none;
            transition: color var(--hth-transition);
        }

        a:hover {
            color: var(--hth-primary-dark);
        }

        button,
        input {
            font-family: inherit;
        }

        p {
            margin-top: 0;
        }

        .container,
        .container-lg {
            max-width: 1200px;
        }

        .hth-section {
            padding: 88px 0;
        }

        .section-head {
            max-width: 760px;
        }

        .section-kicker {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.12em;
            color: var(--hth-primary);
            background: var(--hth-primary-light);
            padding: 5px 12px;
            border-radius: 4px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .section-head h2,
        .section-title {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.35;
            letter-spacing: -0.01em;
            color: var(--hth-text);
            margin: 0 0 16px 0;
        }

        .section-lead {
            color: var(--hth-text-secondary);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .site-header {
            background: #fff;
            position: sticky;
            top: 0;
            z-index: 1050;
            border-bottom: 1px solid transparent;
            transition: border-color var(--hth-transition), box-shadow var(--hth-transition);
            box-shadow: 0 8px 30px rgba(26, 45, 80, 0.04);
        }

        .site-header .navbar {
            min-height: 72px;
            padding: 0 24px;
            position: relative;
        }

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            column-gap: 10px;
            margin-right: 24px;
            padding: 0;
            max-width: 100%;
        }

        .brand-mark {
            width: 36px;
            height: 36px;
            background: var(--hth-primary);
            border-radius: 8px;
            color: #fff;
            font-weight: 800;
            font-size: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex: 0 0 36px;
            box-shadow: 0 6px 14px rgba(46, 125, 191, 0.22);
        }

        .brand-text {
            color: var(--hth-text);
            font-size: 19px;
            font-weight: 800;
            letter-spacing: -0.01em;
            line-height: 1.16;
        }

        .brand-text:hover {
            color: var(--hth-primary);
        }

        .site-nav .navbar-nav {
            align-items: center;
            column-gap: 6px;
        }

        .site-nav .navbar-nav .nav-link {
            color: var(--hth-text-secondary);
            font-weight: 600;
            font-size: 16px;
            padding: 12px 14px;
            border-radius: 8px;
            position: relative;
            transition: color var(--hth-transition), background var(--hth-transition);
        }

        .site-nav .navbar-nav .nav-link:hover {
            color: var(--hth-primary);
            background: var(--hth-primary-light);
        }

        .site-nav .navbar-nav .nav-link.active {
            color: var(--hth-primary);
            font-weight: 700;
            background: transparent;
        }

        .site-nav .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 5px;
            height: 2px;
            border-radius: 2px;
            background: var(--hth-primary);
        }

        .site-toggler {
            border: 1px solid var(--hth-border);
            background: var(--hth-white);
            border-radius: 8px;
            width: 46px;
            height: 46px;
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            padding: 0;
        }

        .site-toggler span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--hth-primary);
            border-radius: 2px;
            transition: transform var(--hth-transition), opacity var(--hth-transition);
        }

        .site-toggler:hover span {
            background: var(--hth-primary-dark);
        }

        @media (max-width: 991.98px) {
            .site-header .navbar {
                padding: 10px 16px;
            }

            .site-header .navbar-collapse {
                position: absolute;
                top: calc(100% + 1px);
                left: 0;
                right: 0;
                background: #fff;
                padding: 18px 20px 26px;
                border-bottom: 1px solid var(--hth-border);
                border-radius: 0 0 16px 16px;
                box-shadow: 0 18px 30px rgba(26, 45, 80, 0.08);
            }

            .site-nav .navbar-nav {
                align-items: stretch;
            }

            .site-nav .navbar-nav .nav-link {
                padding: 14px 12px;
                border-bottom: 1px solid var(--hth-primary-light);
                border-radius: 0;
            }

            .site-nav .navbar-nav .nav-link:last-child {
                border-bottom: 0;
            }

            .site-nav .navbar-nav .nav-link.active::after {
                display: none;
            }

            .site-nav .navbar-nav .nav-link.active {
                background: var(--hth-primary-light);
            }

            .brand-text {
                font-size: 16px;
            }
        }

        .hero {
            background: linear-gradient(180deg, #EAF2F8 0%, #F7FAFC 100%);
            overflow: hidden;
            position: relative;
        }

        .hero-wrap {
            min-height: 88vh;
            display: flex;
            align-items: center;
            padding: 80px 0;
            position: relative;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.88);
            border: 1px solid var(--hth-border);
            color: var(--hth-primary-dark);
            font-size: 14px;
            font-weight: 600;
            padding: 7px 16px;
            border-radius: 999px;
            box-shadow: var(--hth-shadow);
            margin-bottom: 22px;
        }

        .hero-badge i {
            font-size: 14px;
        }

        .hero h1 {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.22;
            letter-spacing: -0.02em;
            color: var(--hth-text);
            margin-bottom: 20px;
        }

        .hero h1 .text-accent {
            color: var(--hth-primary);
        }

        .hero-lead {
            font-size: 18px;
            color: var(--hth-text-secondary);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 14px;
        }

        .hero-note {
            color: var(--hth-text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 18px;
        }

        .hero-quick {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px 22px;
            font-size: 14px;
            color: var(--hth-text-muted);
            border-top: 1px solid rgba(220, 231, 239, 0.6);
            padding-top: 18px;
        }

        .hero-quick a {
            color: var(--hth-text-secondary);
            font-weight: 600;
            border-bottom: 1px dashed var(--hth-border);
        }

        .hero-quick a:hover {
            color: var(--hth-primary);
            border-bottom-color: var(--hth-primary);
        }

        .hero-visual {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 18px 50px rgba(26, 45, 80, 0.10);
            aspect-ratio: 4 / 3;
            background: var(--hth-primary-light);
        }

        .hero-visual img,
        .hero-visual picture img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .hero-visual .hero-visual-caption {
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 16px;
            background: rgba(35, 48, 57, 0.78);
            color: #fff;
            border-radius: 12px;
            padding: 12px 16px;
            font-size: 14px;
            line-height: 1.45;
            backdrop-filter: blur(4px);
        }

        .btn {
            border-radius: 8px;
            font-weight: 700;
            font-size: 15px;
            padding: 11px 24px;
            transition: background var(--hth-transition), border-color var(--hth-transition), box-shadow var(--hth-transition), transform var(--hth-transition);
            border: 1px solid transparent;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .btn-hth-primary {
            background: var(--hth-primary);
            color: #fff;
            border-color: var(--hth-primary);
            box-shadow: 0 10px 22px rgba(46, 125, 191, 0.16);
        }

        .btn-hth-primary:hover {
            background: var(--hth-primary-dark);
            border-color: var(--hth-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 14px 26px rgba(46, 125, 191, 0.22);
        }

        .btn-hth-outline {
            background: var(--hth-white);
            color: var(--hth-primary);
            border-color: var(--hth-primary);
        }

        .btn-hth-outline:hover {
            background: var(--hth-primary);
            color: #fff;
            border-color: var(--hth-primary);
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(46, 125, 191, 0.14);
        }

        .btn-hth-ghost {
            background: var(--hth-primary-light);
            color: var(--hth-primary-dark);
            border-color: transparent;
        }

        .btn-hth-ghost:hover {
            background: var(--hth-primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .hth-card {
            background: var(--hth-white);
            border: 1px solid var(--hth-card-border);
            border-radius: var(--hth-radius-lg);
            box-shadow: var(--hth-shadow);
            transition: transform var(--hth-transition), box-shadow var(--hth-transition);
        }

        .hth-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--hth-shadow-hover);
        }

        .issue-section {
            background: var(--hth-white);
        }

        .issue-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .issue-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            padding: 22px 0;
            border-bottom: 1px solid var(--hth-border);
        }

        .issue-item:last-child {
            border-bottom: 0;
        }

        .issue-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--hth-primary-light);
            color: var(--hth-primary);
            font-weight: 800;
            font-size: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex: 0 0 44px;
        }

        .issue-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 6px 0;
            line-height: 1.45;
        }

        .issue-item p {
            margin: 0;
            color: var(--hth-text-secondary);
            line-height: 1.7;
            font-size: 15px;
        }

        .issue-media {
            border-radius: 16px;
            overflow: hidden;
            position: sticky;
            top: 160px;
        }

        .issue-media img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            display: block;
            border-radius: 16px;
        }

        .step-section {
            background: var(--hth-body-bg);
        }

        .step-flow {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            margin-top: 44px;
            position: relative;
        }

        .step-card {
            background: var(--hth-white);
            border: 1px solid var(--hth-card-border);
            border-radius: 16px;
            padding: 28px;
            box-shadow: var(--hth-shadow);
            transition: transform var(--hth-transition), box-shadow var(--hth-transition);
            position: relative;
        }

        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--hth-shadow-hover);
        }

        .step-number {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--hth-primary-light);
            color: var(--hth-primary);
            font-size: 18px;
            font-weight: 800;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }

        .step-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin: 0 0 12px 0;
        }

        .step-card p {
            color: var(--hth-text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }

        .data-section {
            background: var(--hth-white);
        }

        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .data-card {
            background: var(--hth-white);
            border: 1px solid var(--hth-card-border);
            border-radius: 16px;
            padding: 28px 26px;
            box-shadow: var(--hth-shadow);
            transition: transform var(--hth-transition), box-shadow var(--hth-transition);
        }

        .data-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--hth-shadow-hover);
        }

        .data-num {
            font-size: 38px;
            line-height: 1;
            font-weight: 800;
            color: var(--hth-accent);
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }

        .data-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 10px 0;
        }

        .data-card p {
            color: var(--hth-text-muted);
            font-size: 14px;
            line-height: 1.65;
            margin: 0;
        }

        .testimonial-section {
            background: var(--hth-body-bg);
        }

        .testimonial-left {
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .testimonial-left .hth-card {
            flex: 1;
        }

        .testimonial-card {
            padding: 30px;
            border-radius: 16px;
            background: var(--hth-white);
            position: relative;
        }

        .testimonial-card:before {
            content: "“";
            position: absolute;
            top: 8px;
            right: 28px;
            font-size: 76px;
            line-height: 1;
            color: rgba(46, 125, 191, 0.12);
            font-family: Georgia, serif;
        }

        .testimonial-main {
            margin-top: 44px;
        }

        .testimonial-main .testimonial-card {
            min-height: 220px;
        }

        .testimonial-stars {
            color: var(--hth-accent);
            font-size: 15px;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }

        .testimonial-text {
            font-size: 16px;
            color: var(--hth-text-secondary);
            line-height: 1.85;
            margin-bottom: 16px;
        }

        .testimonial-person {
            font-weight: 700;
            font-size: 14px;
            color: var(--hth-text);
            border-top: 1px solid var(--hth-border);
            padding-top: 14px;
        }

        .testimonial-tag {
            display: inline-block;
            margin-top: 10px;
            font-size: 12px;
            color: var(--hth-primary);
            background: var(--hth-primary-light);
            padding: 4px 10px;
            border-radius: 4px;
            font-weight: 600;
        }

        .rating-row {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 10px;
            font-size: 14px;
            color: var(--hth-text-muted);
            margin-top: 16px;
        }

        .rating-dots i {
            color: var(--hth-accent);
        }

        .faq-home-section {
            background: var(--hth-white);
        }

        .accordion-item {
            background: var(--hth-white);
            border: 1px solid var(--hth-card-border);
            border-radius: 12px !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--hth-shadow);
        }

        .accordion-button {
            background: var(--hth-white);
            color: var(--hth-text);
            font-weight: 700;
            font-size: 16px;
            padding: 18px 22px;
            border: 0;
            line-height: 1.5;
        }

        .accordion-button:not(.collapsed) {
            background: var(--hth-white);
            color: var(--hth-text);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(46, 125, 191, 0.15);
            border-color: transparent;
        }

        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232E7DBF'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }

        .accordion-body {
            padding: 0 22px 22px;
            color: var(--hth-text-secondary);
            line-height: 1.8;
            font-size: 15px;
        }

        .news-section {
            background: var(--hth-body-bg);
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .news-card-item {
            background: var(--hth-white);
            border: 1px solid var(--hth-card-border);
            border-radius: 16px;
            padding: 18px;
            display: flex;
            gap: 18px;
            align-items: stretch;
            box-shadow: var(--hth-shadow);
            transition: transform var(--hth-transition), box-shadow var(--hth-transition);
        }

        .news-card-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--hth-shadow-hover);
        }

        .news-thumb {
            width: 180px;
            min-width: 180px;
            border-radius: 12px;
            overflow: hidden;
            background: var(--hth-primary-light);
            aspect-ratio: 4 / 3;
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .news-content {
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 6px;
        }

        .content-tag {
            background: var(--hth-primary-light);
            color: var(--hth-primary-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
        }

        .content-time {
            color: var(--hth-text-muted);
            font-size: 13px;
        }

        .news-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--hth-text);
            margin-bottom: 8px;
            display: block;
        }

        .news-title:hover {
            color: var(--hth-primary);
        }

        .news-summary {
            color: var(--hth-text-secondary);
            font-size: 14px;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 10px;
        }

        .news-link {
            margin-top: auto;
            font-size: 14px;
            font-weight: 700;
            color: var(--hth-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .news-link:hover {
            color: var(--hth-primary-dark);
        }

        .news-link i {
            transition: transform var(--hth-transition);
        }

        .news-link:hover i {
            transform: translateX(3px);
        }

        .aside-card {
            background: var(--hth-white);
            border: 1px solid var(--hth-card-border);
            border-radius: 16px;
            padding: 26px;
            box-shadow: var(--hth-shadow);
            margin-bottom: 20px;
        }

        .aside-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .aside-card p {
            color: var(--hth-text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .aside-link-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .aside-link-list li a {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--hth-text-secondary);
            font-weight: 600;
            font-size: 15px;
            padding: 10px 0;
            border-bottom: 1px solid var(--hth-border);
        }

        .aside-link-list li:last-child a {
            border-bottom: 0;
        }

        .aside-link-list li a:hover {
            color: var(--hth-primary);
        }

        .empty-panel {
            background: var(--hth-white);
            border: 1px dashed var(--hth-border);
            border-radius: 16px;
            padding: 60px 30px;
            text-align: center;
        }

        .empty-orb {
            width: 66px;
            height: 66px;
            background: var(--hth-primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 20px;
            color: var(--hth-primary);
        }

        .empty-panel .empty-text {
            color: var(--hth-text-secondary);
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .cta-section {
            position: relative;
            overflow: hidden;
            border-radius: 0;
        }

        .cta-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
        }

        .cta-overlay {
            position: absolute;
            inset: 0;
            background: rgba(35, 48, 57, 0.72);
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
            padding: 80px 0;
        }

        .cta-content h2 {
            font-size: 30px;
            font-weight: 800;
            margin: 0 0 16px 0;
            line-height: 1.35;
        }

        .cta-content p {
            max-width: 620px;
            margin: 0 auto 28px;
            color: rgba(234, 240, 245, 0.82);
            font-size: 16px;
            line-height: 1.8;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-white-solid {
            background: #fff;
            color: var(--hth-primary-dark);
            border-color: #fff;
            font-weight: 700;
        }

        .btn-white-solid:hover {
            background: var(--hth-primary-light);
            border-color: var(--hth-primary-light);
            color: var(--hth-primary-dark);
            transform: translateY(-2px);
        }

        .btn-white-line {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.7);
            color: #fff;
        }

        .btn-white-line:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .site-footer {
            background: var(--hth-footer-bg);
            color: var(--hth-footer-text);
            padding: 64px 0 0;
        }

        .site-footer h3 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 18px 0;
            letter-spacing: 0.02em;
        }

        .footer-brand-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand-title .brand-mark {
            background: var(--hth-primary);
        }

        .footer-desc {
            color: var(--hth-footer-link);
            font-size: 14px;
            line-height: 1.75;
            max-width: 280px;
            margin-bottom: 0;
        }

        .footer-menu {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-menu li a {
            color: var(--hth-footer-link);
            font-size: 15px;
            padding: 5px 0;
            display: inline-block;
            transition: color var(--hth-transition), transform var(--hth-transition);
        }

        .footer-menu li a:hover {
            color: #fff;
            transform: translateX(3px);
        }

        .footer-bottom {
            border-top: 1px solid rgba(183, 195, 204, 0.18);
            padding: 20px 0;
            margin-top: 40px;
            font-size: 13px;
            color: var(--hth-footer-link);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
        }

        .footer-bottom a {
            color: var(--hth-footer-link);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        @media (max-width: 991.98px) {
            .hero-wrap {
                min-height: auto;
                padding: 60px 0;
            }

            .hero h1 {
                font-size: 32px;
            }

            .hero-lead {
                font-size: 16px;
            }

            .visually-trigger {
                margin-top: 30px;
            }

            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .testimonial-main {
                margin-top: 16px;
            }

            .section-head h2,
            .section-title {
                font-size: 24px;
            }
        }

        @media (max-width: 767.98px) {
            .hth-section {
                padding: 56px 0;
            }

            .hero-wrap {
                padding: 44px 0;
            }

            .hero h1 {
                font-size: 28px;
                line-height: 1.3;
            }

            .hero-actions {
                width: 100%;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .hero-quick {
                padding-top: 16px;
            }

            .step-flow {
                grid-template-columns: 1fr;
            }

            .data-grid {
                grid-template-columns: 1fr;
            }

            .news-card-item {
                flex-direction: column;
            }

            .news-thumb {
                width: 100%;
                aspect-ratio: 16 / 9;
            }

            .footer-bottom {
                justify-content: center;
                text-align: center;
            }

            .cta-content {
                padding: 56px 16px;
            }

            .cta-content h2 {
                font-size: 24px;
            }

            .cta-actions .btn {
                width: 100%;
            }
        }

        @media (max-width: 420px) {
            .container,
            .site-header .navbar {
                padding-left: 16px;
                padding-right: 16px;
            }

            .brand-mark {
                width: 32px;
                height: 32px;
                font-size: 13px;
                flex: 0 0 32px;
                border-radius: 6px;
            }

            .brand-text {
                font-size: 15px;
            }

            .data-card {
                padding: 22px;
            }
        }

/* roulang page: article */
:root {
            --hth-primary: #2E7DBF;
            --hth-primary-dark: #1C5C89;
            --hth-primary-soft: #E5F0F8;
            --hth-gold: #C79A54;
            --hth-bg: #F6F9FC;
            --hth-card-bg: #FFFFFF;
            --hth-text: #1F2A35;
            --hth-text-secondary: #5B6B7A;
            --hth-text-muted: #7B8A99;
            --hth-border: #DCE7EF;
            --hth-card-border: #E3EBF2;
            --hth-footer-bg: #233039;
            --hth-footer-text: #EAF0F5;
            --hth-footer-link: #B7C3CC;
            --hth-font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
            --hth-radius-lg: 16px;
            --hth-radius-sm: 8px;
            --hth-shadow: 0 6px 24px rgba(26, 45, 80, 0.06);
            --hth-shadow-hover: 0 14px 34px rgba(26, 45, 80, 0.10);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            margin: 0;
            font-family: var(--hth-font);
            font-size: 16px;
            line-height: 1.75;
            color: var(--hth-text);
            background-color: var(--hth-bg);
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--hth-primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--hth-primary-dark);
        }

        img {
            max-width: 100%;
            display: block;
            object-fit: cover;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1040;
            background: #FFFFFF;
            box-shadow: 0 1px 12px rgba(26, 45, 80, 0.05);
            border-bottom: 1px solid var(--hth-card-border);
        }

        .site-header .navbar {
            min-height: 72px;
            padding-top: 0;
            padding-bottom: 0;
        }

        .site-header .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-right: 24px;
            padding: 0;
            line-height: 1;
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--hth-primary);
            border-radius: 10px;
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 800;
            letter-spacing: 0.02em;
            box-shadow: 0 6px 14px rgba(46, 125, 191, 0.18);
        }

        .brand-text {
            font-size: 19px;
            font-weight: 800;
            color: var(--hth-text);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .site-header .navbar-nav {
            gap: 2px;
        }

        .site-header .nav-link {
            position: relative;
            font-size: 16px;
            font-weight: 500;
            color: #32404E;
            padding: 8px 16px !important;
            border-radius: 8px;
        }

        .site-header .nav-link:hover,
        .site-header .nav-link:focus {
            color: var(--hth-primary);
            background: rgba(46, 125, 191, 0.06);
        }

        .site-header .nav-link.active {
            color: var(--hth-primary);
            font-weight: 600;
        }

        .site-header .nav-link.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: var(--hth-primary);
        }

        .site-toggler {
            width: 44px;
            height: 44px;
            border: 1px solid var(--hth-border);
            border-radius: 8px;
            background: #FFFFFF;
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            padding: 0;
        }

        .site-toggler span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--hth-primary);
            border-radius: 2px;
            transition: all 0.2s ease;
        }

        .site-toggler:focus-visible,
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(46, 125, 191, 0.35);
            outline-offset: 2px;
        }

        .page-banner {
            background-color: var(--hth-primary-soft);
            background-image: linear-gradient(120deg, rgba(229, 240, 248, 0.96) 0%, rgba(246, 249, 252, 0.92) 100%), url('/assets/images/backpic/back-2.webp');
            background-repeat: no-repeat;
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--hth-card-border);
        }

        .page-banner-inner {
            padding: 64px 0 60px;
        }

        .breadcrumb-nav {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--hth-text-muted);
            margin-bottom: 20px;
        }

        .breadcrumb-nav a {
            color: var(--hth-text-muted);
            display: inline-flex;
        }

        .breadcrumb-nav a:hover {
            color: var(--hth-primary);
        }

        .breadcrumb-nav .sep {
            color: #A9B7C5;
            font-size: 13px;
        }

        .breadcrumb-nav .dcrumb-current {
            color: var(--hth-text);
            max-width: 260px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .page-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(46, 125, 191, 0.10);
            color: var(--hth-primary-dark);
            border: 1px solid rgba(46, 125, 191, 0.15);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 18px;
        }

        .page-kicker i {
            width: 6px;
            height: 6px;
            background: var(--hth-primary);
            border-radius: 50%;
            display: inline-block;
        }

        .article-title {
            font-size: 32px;
            line-height: 1.25;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--hth-text);
            margin: 0 0 18px;
            max-width: 860px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px 22px;
            color: var(--hth-text-muted);
            font-size: 14px;
            margin-top: 20px;
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .meta-badge {
            display: inline-flex;
            background: var(--hth-primary-soft);
            color: var(--hth-primary-dark);
            font-weight: 600;
            border-radius: 4px;
            padding: 2px 10px;
            font-size: 13px;
        }

        .article-section {
            padding: 80px 0;
        }

        .article-main,
        .article-aside {
            min-width: 0;
        }

        .article-panel {
            background: var(--hth-card-bg);
            border: 1px solid var(--hth-card-border);
            border-radius: var(--hth-radius-lg);
            box-shadow: var(--hth-shadow);
            padding: 48px 52px;
        }

        .article-body {
            font-size: 16px;
            color: var(--hth-text);
        }

        .article-body p {
            margin: 0 0 1.6em;
            line-height: 1.9;
        }

        .article-body h2 {
            font-size: 23px;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin: 48px 0 18px;
            color: var(--hth-text);
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 36px 0 14px;
            color: var(--hth-text);
            line-height: 1.5;
        }

        .article-body h4 {
            font-size: 16px;
            font-weight: 700;
            margin: 28px 0 10px;
            color: var(--hth-text);
        }

        .article-body a {
            color: var(--hth-primary);
            text-decoration: underline;
            text-underline-offset: 4px;
            text-decoration-color: rgba(46, 125, 191, 0.35);
        }

        .article-body a:hover {
            color: var(--hth-primary-dark);
            text-decoration-color: var(--hth-primary-dark);
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 1.6em;
            padding-left: 1.4em;
        }

        .article-body li {
            margin-bottom: 8px;
        }

        .article-body img {
            max-width: 100%;
            border-radius: 12px;
            margin: 28px auto;
            height: auto;
        }

        .article-body blockquote {
            position: relative;
            margin: 32px 0;
            padding: 20px 24px;
            background: var(--hth-bg);
            border-left: 4px solid var(--hth-primary);
            border-radius: 0 12px 12px 0;
            color: #4A5A68;
            font-size: 15px;
            line-height: 1.8;
        }

        .article-body blockquote p {
            margin-bottom: 0;
        }

        .article-body table {
            display: block;
            width: 100%;
            overflow-x: auto;
            border-collapse: collapse;
            margin: 28px 0;
            font-size: 14px;
            background: #FFFFFF;
            border: 1px solid var(--hth-border);
            border-radius: 8px;
        }

        .article-body table th,
        .article-body table td {
            border: 1px solid var(--hth-border);
            padding: 12px 14px;
            text-align: left;
            white-space: nowrap;
        }

        .article-body table th {
            background: var(--hth-primary-soft);
            color: var(--hth-primary-dark);
            font-weight: 600;
        }

        .article-body hr {
            border: 0;
            border-top: 1px solid var(--hth-border);
            margin: 36px 0;
        }

        .article-bottom-cards {
            margin-top: 40px;
            padding-top: 32px;
            border-top: 1px solid var(--hth-border);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .article-bottom-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            background: var(--hth-bg);
            border: 1px solid var(--hth-border);
            border-radius: 12px;
            padding: 18px 22px;
            transition: all 0.2s ease;
        }

        .article-bottom-card:hover {
            background: var(--hth-primary-soft);
            border-color: var(--hth-primary);
            box-shadow: var(--hth-shadow-hover);
            transform: translateY(-2px);
        }

        .article-bottom-link {
            font-weight: 600;
            color: var(--hth-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .article-bottom-link .arrow {
            transition: transform 0.2s ease;
        }

        .article-bottom-card:hover .article-bottom-link .arrow {
            transform: translateX(3px);
        }

        .aside-widget {
            background: #FFFFFF;
            border: 1px solid var(--hth-card-border);
            border-radius: var(--hth-radius-lg);
            box-shadow: var(--hth-shadow);
            padding: 24px;
            margin-bottom: 24px;
        }

        .aside-widget-head {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
            font-size: 17px;
            font-weight: 700;
            color: var(--hth-text);
            line-height: 1.3;
        }

        .aside-widget-head::before {
            content: "";
            flex: 0 0 auto;
            width: 4px;
            height: 18px;
            background: var(--hth-primary);
            border-radius: 2px;
        }

        .article-side-banner {
            background: var(--hth-primary-soft);
            border-radius: 14px;
            overflow: hidden;
            margin-bottom: 20px;
        }

        .article-side-banner img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }

        .side-cat-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .side-cat-list a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 14px;
            background: var(--hth-bg);
            border: 1px solid transparent;
            border-radius: 10px;
            color: var(--hth-text-secondary);
            font-weight: 500;
            font-size: 14px;
            transition: all 0.2s ease;
        }

        .side-cat-list a:hover {
            background: var(--hth-primary-soft);
            border-color: rgba(46, 125, 191, 0.25);
            color: var(--hth-primary-dark);
            transform: translateX(2px);
        }

        .side-cat-list .cat-index {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 26px;
            height: 26px;
            background: #FFFFFF;
            color: var(--hth-primary);
            border-radius: 8px;
            font-weight: 700;
            font-size: 12px;
        }

        .side-note {
            background: #FFFFFF;
            border: 1px solid rgba(199, 154, 84, 0.4);
            border-radius: 12px;
            padding: 16px;
            margin-bottom: 18px;
        }

        .side-note p {
            font-size: 13px;
            color: var(--hth-text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        .btn-hth {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--hth-primary);
            color: #FFFFFF;
            border: 1px solid var(--hth-primary);
            border-radius: var(--hth-radius-sm);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.2;
            padding: 14px 28px;
            min-height: 46px;
            transition: all 0.2s ease;
            text-decoration: none;
        }

        .btn-hth:hover {
            background: var(--hth-primary-dark);
            border-color: var(--hth-primary-dark);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(28, 92, 137, 0.24);
        }

        .btn-outline-hth {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #FFFFFF;
            color: var(--hth-primary);
            border: 1px solid var(--hth-primary);
            border-radius: var(--hth-radius-sm);
            font-weight: 600;
            font-size: 15px;
            padding: 12px 22px;
            min-height: 46px;
            transition: all 0.2s ease;
            text-decoration: none;
        }

        .btn-outline-hth:hover {
            background: var(--hth-primary);
            border-color: var(--hth-primary);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(46, 125, 191, 0.2);
        }

        .btn-back-section {
            margin-top: 18px;
        }

        .btn-back-section .btn-hth {
            min-width: 150px;
        }

        .notfound-section {
            padding: 110px 0;
            min-height: 60vh;
            display: flex;
            align-items: center;
        }

        .notfound-box {
            background: #FFFFFF;
            border: 1px solid var(--hth-card-border);
            border-radius: var(--hth-radius-lg);
            box-shadow: var(--hth-shadow);
            padding: 64px 40px;
            text-align: center;
            position: relative;
        }

        .notfound-icon {
            width: 84px;
            height: 84px;
            margin: 0 auto 24px;
            background: var(--hth-primary-soft);
            border: 2px dashed rgba(46, 125, 191, 0.3);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 34px;
            color: var(--hth-primary);
        }

        .notfound-title {
            font-size: 24px;
            font-weight: 800;
            margin: 0 0 12px;
            color: var(--hth-text);
        }

        .notfound-text {
            color: var(--hth-text-secondary);
            font-size: 15px;
            max-width: 480px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        .site-footer {
            background: var(--hth-footer-bg);
            color: var(--hth-footer-text);
            padding: 64px 0 26px;
            margin-top: auto;
        }

        .site-footer .footer-brand-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #FFFFFF;
        }

        .site-footer .brand-mark {
            background: #FFFFFF;
            color: var(--hth-primary);
            box-shadow: none;
        }

        .footer-desc {
            margin: 18px 0 0;
            color: var(--hth-footer-link);
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
        }

        .site-footer h3 {
            font-size: 16px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
        }

        .footer-menu {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-menu a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--hth-footer-link);
            font-size: 14px;
            transition: color 0.2s ease;
        }

        .footer-menu a:hover {
            color: #FFFFFF;
        }

        .footer-bottom {
            margin-top: 44px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px 16px;
            color: #8FA1AE;
            font-size: 13px;
        }

        .footer-bottom a {
            color: #A9B7C5;
        }

        @media (max-width: 1199px) {
            .article-panel {
                padding: 40px 40px;
            }
        }

        @media (max-width: 991px) {
            .site-header .site-toggler {
                display: inline-flex;
            }

            .site-header .navbar-collapse {
                background: #FFFFFF;
                border-top: 1px solid var(--hth-border);
                padding: 12px 0 20px;
                margin: 0 -6px;
                border-radius: 0 0 12px 12px;
                box-shadow: 0 18px 28px rgba(26, 45, 80, 0.08);
            }

            .site-header .navbar-nav {
                width: 100%;
                flex-direction: column;
                gap: 2px;
                margin-top: 12px;
                padding-left: 8px;
                padding-right: 8px;
            }

            .site-header .nav-link {
                width: 100%;
                display: flex;
                align-items: center;
                justify-content: space-between;
                padding: 14px 10px !important;
                border-bottom: 1px solid var(--hth-border);
                border-radius: 8px;
                font-size: 15px;
            }

            .site-header .nav-link:last-of-type {
                border-bottom: 0;
            }

            .site-header .nav-link.active::after {
                display: none;
            }

            .site-header .nav-link.active {
                background: var(--hth-primary-soft);
                color: var(--hth-primary-dark);
                font-weight: 600;
            }

            .article-section {
                padding: 56px 0;
            }

            .article-panel {
                padding: 32px 30px;
            }

            .article-aside {
                margin-top: 8px;
            }

            .page-banner-inner {
                padding: 48px 0 44px;
            }

            .article-title {
                font-size: 28px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .site-header .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .brand-text {
                font-size: 16px;
            }

            .brand-mark {
                width: 34px;
                height: 34px;
                font-size: 13px;
                border-radius: 8px;
            }

            .site-header .navbar {
                min-height: 64px;
            }

            .page-banner-inner {
                padding: 36px 0 36px;
            }

            .article-title {
                font-size: 24px;
                line-height: 1.35;
            }

            .article-meta {
                gap: 6px 14px;
                font-size: 13px;
                margin-top: 16px;
            }

            .article-section {
                padding: 38px 0;
            }

            .article-panel {
                padding: 26px 20px;
                border-radius: 14px;
            }

            .article-body {
                font-size: 15px;
            }

            .article-body h2 {
                font-size: 20px;
                margin-top: 36px;
            }

            .article-body h3 {
                font-size: 17px;
            }

            .page-kicker {
                font-size: 12px;
                padding: 5px 10px;
                line-height: 1.2;
            }

            .aside-widget {
                padding: 20px;
            }

            .notfound-section {
                padding: 64px 0;
            }

            .notfound-box {
                padding: 40px 24px;
            }

            .btn-hth,
            .btn-outline-hth {
                width: 100%;
                padding-left: 16px;
                padding-right: 16px;
            }

            .site-footer {
                padding-top: 48px;
            }

            .site-footer h3 {
                margin-top: 18px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .breadcrumb-nav .dcrumb-current {
                max-width: 180px;
            }
        }

        @media (max-width: 480px) {
            .brand-text {
                font-size: 15px;
            }

            .brand-mark {
                width: 30px;
                height: 30px;
                font-size: 12px;
            }

            .site-header .navbar-brand {
                gap: 7px;
            }

            .article-title {
                font-size: 22px;
            }

            .article-panel {
                padding: 22px 16px;
            }

            .article-bottom-card {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
        }

/* roulang page: category1 */
:root{
    --clr-primary:#2E7DBF;
    --clr-primary-dark:#1C5C89;
    --clr-primary-light:#E5F0F8;
    --clr-accent:#C79A54;
    --clr-body-bg:#F6F9FC;
    --clr-white:#FFFFFF;
    --clr-text:#1F2A35;
    --clr-text-muted:#5B6B7A;
    --clr-text-faint:#7B8A99;
    --clr-border:#DCE7EF;
    --clr-border-card:#E3EBF2;
    --clr-footer-bg:#233039;
    --clr-footer-text:#EAF0F5;
    --clr-nav-link:#32404E;
    --radius-lg:16px;
    --radius-md:8px;
    --radius-sm:4px;
    --shadow-soft:0 6px 24px rgba(26,45,80,.06);
    --shadow-hover:0 14px 34px rgba(26,45,80,.10);
    --font-base:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI","Helvetica Neue",Arial,sans-serif;
    --section-gap:88px;
}
html{scroll-behavior:smooth}
body{
    font-family:var(--font-base);
    background-color:var(--clr-body-bg);
    color:var(--clr-text);
    line-height:1.75;
    margin:0;
    -webkit-font-smoothing:antialiased;
}
*,*::before,*::after{box-sizing:border-box}
img{display:block;max-width:100%}
a{color:var(--clr-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--clr-primary-dark)}
h1,h2,h3,h4{
    line-height:1.35;
    font-weight:700;
    letter-spacing:-.01em;
    margin:0 0 .5em;
}
p{margin:0 0 1rem}
.container{
    max-width:1200px;
    --bs-gutter-x:1.25rem;
}
.section-gap{padding:var(--section-gap) 0}
.site-header{
    position:sticky;
    top:0;
    z-index:1080;
    background:var(--clr-white);
    box-shadow:var(--shadow-soft);
    border-bottom:1px solid var(--clr-border);
}
.site-header .navbar{
    background:var(--clr-white);
    min-height:72px;
    padding:0;
}
.site-header .navbar-brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    margin:0;
    padding:0;
    color:var(--clr-text);
    font-weight:700;
    letter-spacing:0;
}
.brand-mark{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    height:34px;
    padding:0 11px;
    border-radius:var(--radius-md);
    background:var(--clr-primary);
    color:var(--clr-white);
    font-size:16px;
    font-weight:800;
    letter-spacing:.05em;
}
.brand-text{
    color:var(--clr-text);
    font-size:17px;
    font-weight:800;
    white-space:nowrap;
}
.site-header .navbar-nav .nav-link{
    position:relative;
    color:var(--clr-nav-link);
    font-size:16px;
    font-weight:500;
    padding:0 16px !important;
    line-height:72px;
    white-space:nowrap;
}
.site-header .navbar-nav .nav-link:hover{
    color:var(--clr-primary);
}
.site-header .navbar-nav .nav-link.active{
    color:var(--clr-primary);
    font-weight:700;
}
.site-header .navbar-nav .nav-link.active::after{
    content:"";
    position:absolute;
    left:16px;
    right:16px;
    bottom:14px;
    height:2px;
    border-radius:2px;
    background:var(--clr-primary);
}
.site-header .navbar-nav .nav-link.active[aria-current="page"]::after{
    background:var(--clr-primary);
}
.site-toggler{
    width:44px;
    height:44px;
    border:1px solid var(--clr-border);
    border-radius:var(--radius-md);
    background:var(--clr-white);
    padding:10px;
    display:inline-flex;
    flex-direction:column;
    justify-content:center;
    gap:5px;
}
.site-toggler span{
    display:block;
    width:20px;
    height:2px;
    margin:0 auto;
    background:var(--clr-primary);
    border-radius:2px;
    transition:opacity .2s ease,transform .2s ease;
}
.site-toggler:focus{
    outline:none;
    box-shadow:0 0 0 3px rgba(46,125,191,.15);
}
.entry-hero{
    position:relative;
    padding:56px 0 70px;
    background:#fbfdff;
    border-bottom:1px solid var(--clr-border);
    overflow:hidden;
}
.entry-hero::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:url("/assets/images/backpic/back-1.webp");
    background-size:cover;
    background-position:center;
    opacity:.26;
    pointer-events:none;
}
.entry-hero .container{
    position:relative;
    z-index:2;
}
.breadcrumb-line{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    font-size:14px;
    color:var(--clr-text-faint);
    margin-bottom:24px;
}
.breadcrumb-line a{
    color:var(--clr-text-faint);
    text-decoration:none;
}
.breadcrumb-line a:hover{
    color:var(--clr-primary);
}
.breadcrumb-line .sep{
    color:#b9c8d4;
}
.breadcrumb-line .current{
    color:var(--clr-text-muted);
    font-weight:500;
}
.pill-label{
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:var(--clr-primary-light);
    color:var(--clr-primary-dark);
    font-size:13px;
    font-weight:700;
    padding:7px 14px;
    border-radius:100px;
    margin-bottom:18px;
}
.pill-label i{
    color:var(--clr-primary);
}
.entry-title{
    font-size:33px;
    font-weight:800;
    line-height:1.3;
    color:var(--clr-text);
    margin-bottom:18px;
    max-width:680px;
}
.entry-title .title-suffix{
    color:var(--clr-text-muted);
    font-weight:600;
    display:block;
    font-size:26px;
    line-height:1.4;
    margin-top:4px;
}
.hero-lead{
    font-size:16px;
    color:var(--clr-text-muted);
    line-height:1.9;
    max-width:620px;
    margin-bottom:30px;
}
.hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    align-items:center;
    margin-bottom:18px;
}
.btn-local{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:9px;
    border-radius:var(--radius-md);
    padding:.8rem 1.75rem;
    font-size:15px;
    font-weight:700;
    line-height:1.2;
    border:1px solid transparent;
    cursor:pointer;
    transition:background-color .2s ease,box-shadow .2s ease,border-color .2s ease,transform .2s ease,color .2s ease;
    text-decoration:none;
}
.btn-primary-site{
    background:var(--clr-primary);
    color:var(--clr-white);
    box-shadow:0 6px 18px rgba(46,125,191,.2);
}
.btn-primary-site:hover{
    background:var(--clr-primary-dark);
    color:var(--clr-white);
    transform:translateY(-2px);
    box-shadow:0 10px 24px rgba(46,125,191,.28);
}
.btn-secondary-site{
    background:var(--clr-white);
    border-color:var(--clr-primary);
    color:var(--clr-primary);
}
.btn-secondary-site:hover{
    background:var(--clr-primary);
    border-color:var(--clr-primary);
    color:var(--clr-white);
    transform:translateY(-2px);
}
.btn-light-site{
    background:var(--clr-white);
    color:var(--clr-primary) !important;
    box-shadow:0 8px 24px rgba(0,19,38,.15);
}
.btn-light-site:hover{
    background:#F7FAFD;
    color:var(--clr-primary-dark) !important;
    transform:translateY(-2px);
}
.hero-note{
    font-size:13px;
    color:var(--clr-text-faint);
    display:flex;
    align-items:center;
    gap:7px;
}
.hero-note i{
    color:var(--clr-primary);
}
.hero-guide-card{
    background:var(--clr-white);
    border:1px solid var(--clr-border-card);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-soft);
    padding:28px;
    max-width:440px;
    margin-left:auto;
}
.hero-guide-card .guide-title{
    font-size:18px;
    font-weight:700;
    color:var(--clr-text);
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:18px;
}
.hero-guide-card .guide-title i{
    color:var(--clr-primary);
}
.guide-list{
    list-style:none;
    margin:0;
    padding:0;
}
.guide-list li{
    display:flex;
    align-items:center;
    gap:12px;
    padding:12px 0;
    border-bottom:1px dashed var(--clr-border);
}
.guide-list li:last-child{
    border-bottom:0;
}
.guide-list .num{
    flex:0 0 34px;
    width:34px;
    height:34px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    border-radius:50%;
    background:var(--clr-primary-light);
    color:var(--clr-primary-dark);
    font-size:13px;
    font-weight:800;
}
.guide-list a{
    color:var(--clr-text);
    font-weight:600;
    text-decoration:none;
}
.guide-list a:hover{
    color:var(--clr-primary);
}
.content-zone{
    padding:72px 0 70px;
}
.whitespace-card{
    background:var(--clr-white);
    border:1px solid var(--clr-border-card);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-soft);
}
.content-sidebar{
    position:sticky;
    top:96px;
    display:flex;
    flex-direction:column;
    gap:18px;
}
.side-card{
    background:var(--clr-white);
    border:1px solid var(--clr-border-card);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-soft);
    padding:24px 22px;
}
.side-card .side-title{
    font-size:16px;
    font-weight:800;
    color:var(--clr-text);
    padding-left:12px;
    border-left:4px solid var(--clr-primary);
    margin-bottom:14px;
    line-height:1.4;
}
.side-menu,.side-links{
    list-style:none;
    margin:0;
    padding:0;
}
.side-menu li a{
    display:block;
    padding:8px 12px;
    border-radius:var(--radius-md);
    color:var(--clr-text-muted);
    font-size:14px;
    text-decoration:none;
}
.side-menu li a:hover{
    background:var(--clr-primary-light);
    color:var(--clr-primary-dark);
}
.side-note{
    display:flex;
    align-items:flex-start;
    gap:10px;
    font-size:14px;
    color:var(--clr-text-muted);
    line-height:1.7;
    margin:0;
}
.side-note i{
    color:var(--clr-accent);
    font-size:17px;
    margin-top:2px;
}
.side-cta p{
    font-size:14px;
    color:var(--clr-text-muted);
    margin-bottom:14px;
    line-height:1.7;
}
.btn-side-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-weight:700;
    color:var(--clr-primary);
    font-size:14px;
    text-decoration:none;
}
.btn-side-link i{
    transition:transform .2s ease;
}
.btn-side-link:hover i{
    transform:translateX(3px);
}
.content-block{
    margin-bottom:56px;
}
.content-block:last-child{
    margin-bottom:0;
}
.section-kicker{
    display:inline-block;
    background:var(--clr-primary-light);
    color:var(--clr-primary-dark);
    font-size:13px;
    font-weight:700;
    padding:5px 13px;
    border-radius:100px;
    margin-bottom:12px;
}
.content-title{
    font-size:26px;
    font-weight:800;
    line-height:1.4;
    margin-bottom:14px;
}
.content-desc{
    color:var(--clr-text-muted);
    font-size:15px;
    max-width:720px;
    margin-bottom:24px;
}
.prep-card{
    padding:26px;
    background:var(--clr-white);
    border:1px solid var(--clr-border-card);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-soft);
    margin-top:20px;
}
.check-list{
    list-style:none;
    margin:0;
    padding:0;
}
.check-list li{
    display:flex;
    gap:14px;
    align-items:flex-start;
    padding:13px 0;
    border-bottom:1px solid #edf3f8;
}
.check-list li:last-child{
    border-bottom:0;
}
.check-list .icon{
    flex:0 0 34px;
    width:34px;
    height:34px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    border-radius:50%;
    background:var(--clr-primary-light);
    color:var(--clr-primary-dark);
    font-size:13px;
}
.check-list strong{
    display:block;
    font-size:15px;
    font-weight:700;
    color:var(--clr-text);
    margin-bottom:3px;
}
.check-list p{
    margin:0;
    font-size:14px;
    color:var(--clr-text-muted);
    line-height:1.7;
}
.media-frame{
    border-radius:12px;
    overflow:hidden;
    background:var(--clr-primary-light);
    height:100%;
    min-height:220px;
}
.media-frame img{
    width:100%;
    height:100%;
    object-fit:cover;
}
.step-card{
    background:var(--clr-white);
    border:1px solid var(--clr-border-card);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-soft);
    padding:26px 24px;
    margin-top:20px;
}
.step-list{
    list-style:none;
    margin:0;
    padding:0;
    counter-reset:stepIndex;
}
.step-list li{
    position:relative;
    display:flex;
    gap:18px;
    padding:22px 0;
    counter-increment:stepIndex;
}
.step-list li:not(:last-child){
    border-bottom:1px dashed var(--clr-border);
}
.step-num{
    position:relative;
    flex:0 0 48px;
    width:48px;
    height:48px;
    border-radius:50%;
    background:var(--clr-primary);
    color:var(--clr-white);
    font-size:18px;
    font-weight:800;
    display:flex;
    align-items:center;
    justify-content:center;
    z-index:2;
}
.step-list li:not(:last-child)::before{
    content:"";
    position:absolute;
    left:23px;
    top:70px;
    bottom:-6px;
    width:2px;
    background:var(--clr-border);
    z-index:1;
}
.step-body h3{
    font-size:18px;
    font-weight:700;
    color:var(--clr-text);
    margin:0 0 6px;
}
.step-body p{
    margin:0;
    font-size:15px;
    color:var(--clr-text-muted);
    line-height:1.85;
}
.trouble-panel{
    background:var(--clr-white);
    border:1px solid var(--clr-border-card);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-soft);
    padding:20px 22px;
    margin-top:20px;
}
.trouble-item{
    display:flex;
    gap:15px;
    align-items:flex-start;
    padding:16px 0;
}
.trouble-item + .trouble-item{
    border-top:1px solid #edf3f8;
}
.trouble-icon{
    flex:0 0 32px;
    width:32px;
    height:32px;
    border-radius:9px;
    background:var(--clr-primary-light);
    color:var(--clr-primary-dark);
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-size:14px;
    margin-top:3px;
}
.trouble-body h3{
    font-size:16px;
    font-weight:700;
    color:var(--clr-text);
    margin:0 0 7px;
    line-height:1.45;
}
.trouble-body p{
    font-size:15px;
    margin:0;
    color:var(--clr-text-muted);
    line-height:1.8;
}
.hth-callout{
    border-left:4px solid var(--clr-primary);
    background:var(--clr-primary-light);
    border-radius:var(--radius-md);
    padding:18px 20px;
    margin-top:22px;
    font-size:14px;
    line-height:1.85;
    color:#335265;
    display:flex;
    gap:12px;
}
.hth-callout i{
    color:var(--clr-primary);
    font-size:20px;
    line-height:1.5;
}
.faq-compact{
    max-width:860px;
}
.hth-accordion .accordion-item{
    background:var(--clr-white);
    border:1px solid var(--clr-border-card);
    border-radius:var(--radius-md);
    box-shadow:var(--shadow-soft);
    margin-bottom:14px;
    overflow:hidden;
}
.hth-accordion .accordion-button{
    background:var(--clr-white);
    color:var(--clr-text);
    font-size:17px;
    font-weight:700;
    line-height:1.5;
    padding:20px 24px;
    box-shadow:none !important;
    border:0;
    transition:color .2s,background .2s;
}
.hth-accordion .accordion-button.collapsed::after,
.hth-accordion .accordion-button::after{
    background-image:none;
    font-family:"Font Awesome 6 Free";
    font-weight:900;
    content:"\f078";
    color:var(--clr-primary);
    width:18px;
    height:18px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    transition:transform .25s ease;
    font-size:15px;
}
.hth-accordion .accordion-button:not(.collapsed)::after{
    transform:rotate(180deg);
    color:var(--clr-primary);
}
.hth-accordion .accordion-button:not(.collapsed){
    background:var(--clr-white);
    color:var(--clr-primary-dark);
}
.hth-accordion .accordion-button:focus{
    box-shadow:0 0 0 3px rgba(46,125,191,.12) !important;
    outline:none;
}
.hth-accordion .accordion-body{
    padding:0 24px 22px;
    color:var(--clr-text-muted);
    font-size:15px;
    line-height:1.85;
}
.accordion-button .faq-badge{
    display:inline-block;
    background:var(--clr-primary-light);
    color:var(--clr-primary-dark);
    border-radius:4px;
    font-size:12px;
    font-weight:600;
    padding:2px 8px;
    margin-right:10px;
    vertical-align:1px;
}
.cta-wrap{
    padding:0 0 80px;
}
.cta-panel{
    position:relative;
    background-color:#2E7DBF;
    background-image:url("/assets/images/backpic/back-3.webp");
    background-size:cover;
    background-position:center;
    border-radius:20px;
    color:var(--clr-white);
    padding:64px 28px;
    overflow:hidden;
    box-shadow:0 18px 40px rgba(28,92,137,.22);
}
.cta-panel::before{
    content:"";
    position:absolute;
    inset:0;
    background:rgba(24,78,119,.86);
}
.cta-inner{
    position:relative;
    z-index:2;
    max-width:760px;
    margin:0 auto;
    text-align:center;
}
.cta-inner h2{
    color:var(--clr-white);
    font-size:28px;
    font-weight:800;
    line-height:1.45;
    margin-bottom:14px;
}
.cta-inner p{
    color:#e8f2fa;
    font-size:16px;
    line-height:1.85;
    margin-bottom:30px;
}
.cta-actions{
    display:flex;
    justify-content:center;
    flex-wrap:wrap;
    gap:14px;
}
.btn-light-normal{
    background:var(--clr-white);
    color:var(--clr-primary) !important;
}
.btn-light-normal:hover{
    background:#EAF3FA;
    color:var(--clr-primary-dark) !important;
}
.btn-outline-light-rounded{
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.7);
    color:var(--clr-white) !important;
}
.btn-outline-light-rounded:hover{
    background:rgba(255,255,255,.18);
    border-color:#fff;
    color:#fff !important;
}
.site-footer{
    background:var(--clr-footer-bg);
    color:#bfccd7;
    padding:64px 0 0;
    font-size:14px;
}
.site-footer .footer-brand-title{
    display:flex;
    align-items:center;
    gap:10px;
    color:var(--clr-footer-text);
    font-size:17px;
    font-weight:800;
    margin-bottom:12px;
}
.site-footer .brand-mark{
    background:var(--clr-primary);
}
.footer-desc{
    color:#aebbc6;
    font-size:14px;
    line-height:1.9;
    max-width:340px;
    margin:12px 0 0;
}
.site-footer h3{
    color:#fff;
    font-size:16px;
    font-weight:700;
    margin-bottom:16px;
}
.footer-menu{
    list-style:none;
    margin:0;
    padding:0;
}
.footer-menu li{
    margin-bottom:10px;
}
.footer-menu a{
    color:#B7C3CC;
    text-decoration:none;
    font-size:14px;
    line-height:1.7;
    transition:color .18s ease,padding-left .18s ease;
}
.footer-menu a:hover{
    color:#fff;
    padding-left:3px;
}
.footer-bottom{
    border-top:1px solid rgba(255,255,255,.12);
    margin-top:48px;
    padding:20px 0 24px;
    display:flex;
    justify-content:space-between;
    flex-wrap:wrap;
    gap:8px;
    color:#93a4af;
    font-size:13px;
}
@media(max-width:1199.98px){
    .site-header .navbar-nav .nav-link{
        padding:0 12px !important;
        font-size:15px;
    }
}
@media(max-width:991.98px){
    :root{
        --section-gap:64px;
    }
    .content-zone{
        padding:56px 0 54px;
    }
    .site-header .navbar-collapse{
        background:var(--clr-white);
        border-top:1px solid var(--clr-border);
        padding:10px 0 16px;
        margin-top:8px;
        box-shadow:0 16px 24px rgba(26,45,80,.05);
    }
    .site-header .navbar-nav .nav-link{
        line-height:1.5;
        padding:12px 8px !important;
        border-bottom:1px solid #edf3f8;
        font-size:15px;
    }
    .site-header .navbar-nav .nav-link.active::after{
        left:8px;
        right:auto;
        width:24px;
        bottom:2px;
        display:none;
    }
    .hero-guide-card{
        margin-left:0;
        max-width:100%;
    }
    .content-sidebar{
        position:static;
        margin-top:8px;
    }
    .content-block,.content-block:last-child{
        margin-bottom:44px;
    }
}
@media(max-width:767.98px){
    body{
        font-size:15px;
    }
    .site-header .navbar{
        min-height:64px;
    }
    .brand-mark{
        height:30px;
        padding:0 9px;
        font-size:14px;
        border-radius:6px;
    }
    .brand-text{
        font-size:15px;
    }
    .breadcrumb-line{
        font-size:13px;
        margin-bottom:18px;
    }
    .entry-hero{
        padding-bottom:52px;
    }
    .entry-title,
    .entry-title .title-suffix{
        font-size:24px;
    }
    .entry-title .title-suffix{
        font-size:18px;
    }
    .hero-lead{
        font-size:15px;
        margin-bottom:22px;
    }
    .btn-local{
        width:100%;
    }
    .hero-note{
        font-size:12px;
    }
    .content-zone{
        padding:48px 0 40px;
    }
    .content-block,.content-block:last-child{
        margin-bottom:40px;
    }
    .prep-card{
        padding:20px;
    }
    .media-frame{
        margin-top:20px;
    }
    .step-card,
    .trouble-panel{
        padding:18px 16px;
    }
    .step-list li{
        gap:14px;
        padding:18px 0;
    }
    .step-num{
        flex:0 0 42px;
        width:42px;
        height:42px;
        font-size:16px;
    }
    .step-list li:not(:last-child)::before{
        left:20px;
        top:60px;
    }
    .content-title{
        font-size:22px;
    }
    .section-kicker{
        font-size:12px;
    }
    .cta-panel{
        padding:44px 20px;
        border-radius:16px;
    }
    .cta-inner h2{
        font-size:22px;
    }
    .cta-inner p{
        font-size:15px;
    }
    .footer-bottom{
        flex-direction:column;
        text-align:center;
    }
}
@media(max-width:575.98px){
    .container{
        padding-left:16px;
        padding-right:16px;
    }
    .brand-text{
        font-size:14px;
        letter-spacing:-.02em;
    }
    .site-header .navbar-collapse .nav-link{
        font-size:15px;
        padding-left:0 !important;
    }
}

/* roulang page: category2 */
:root {
            --site-brand: #2E7DBF;
            --site-brand-dark: #1C5C89;
            --site-brand-soft: #E5F0F8;
            --site-accent: #C79A54;
            --site-bg: #F6F9FC;
            --site-white: #FFFFFF;
            --site-text: #1F2A35;
            --site-subtext: #5B6B7A;
            --site-muted: #7B8A99;
            --site-border: #DCE7EF;
            --site-border-light: #E3EBF2;
            --site-footer: #233039;
            --site-footer-text: #EAF0F5;
            --radius-card: 16px;
            --radius-btn: 8px;
            --radius-tag: 4px;
            --shadow-card: 0 6px 24px rgba(26, 45, 80, 0.06);
            --shadow-hover: 0 14px 34px rgba(26, 45, 80, 0.10);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--site-bg);
            color: var(--site-text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: var(--site-brand);
            text-decoration: none;
            transition: color .2s ease;
        }

        a:hover {
            color: var(--site-brand-dark);
        }

        img {
            max-width: 100%;
            vertical-align: middle;
        }

        :focus-visible {
            outline: 2px solid var(--site-brand);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: 1240px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding-top: 80px;
            padding-bottom: 80px;
        }

        .section-sm {
            padding-top: 48px;
            padding-bottom: 48px;
        }

        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            color: var(--site-text);
            letter-spacing: -0.01em;
            line-height: 1.35;
        }

        h1,
        h2,
        h3,
        h4,
        p {
            margin-top: 0;
            margin-bottom: 1rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            font-weight: 600;
            line-height: 1.4;
            border-radius: var(--radius-btn);
            padding: .75rem 1.75rem;
            border: 1px solid transparent;
            background-color: transparent;
            transition: all .2s ease;
            min-height: 44px;
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--site-brand);
            border-color: var(--site-brand);
            color: #fff;
            box-shadow: 0 6px 16px rgba(46, 125, 191, 0.20);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--site-brand-dark);
            border-color: var(--site-brand-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(46, 125, 191, 0.26);
        }

        .btn-light-outline {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.65);
            color: #fff;
            backdrop-filter: none;
        }

        .btn-light-outline:hover {
            background: #fff;
            border-color: #fff;
            color: var(--site-brand-dark);
            transform: translateY(-2px);
        }

        .btn-white {
            background: #fff;
            border-color: #fff;
            color: var(--site-brand-dark);
            box-shadow: 0 8px 24px rgba(12, 32, 55, 0.12);
        }

        .btn-white:hover {
            background: var(--site-brand-soft);
            border-color: var(--site-brand-soft);
            color: var(--site-brand-dark);
            transform: translateY(-2px);
        }

        .arrow-link {
            display: inline-flex;
            align-items: center;
            gap: .35rem;
            font-weight: 600;
            color: var(--site-brand);
            text-decoration: none;
            border-bottom: 1px solid transparent;
            padding-bottom: 2px;
            transition: all .2s ease;
        }

        .arrow-link i {
            transition: transform .2s ease;
        }

        .arrow-link:hover {
            color: var(--site-brand-dark);
            border-color: currentColor;
        }

        .arrow-link:hover i {
            transform: translateX(4px);
        }

        /* Header / Nav */
        .site-header {
            background: #FFFFFF;
            position: sticky;
            top: 0;
            z-index: 1080;
            border-bottom: 1px solid var(--site-border-light);
            box-shadow: 0 4px 18px rgba(26, 45, 80, 0.04);
        }

        .site-header .navbar {
            min-height: 72px;
            padding-top: 0;
            padding-bottom: 0;
        }

        .site-header .navbar .container {
            padding-left: 24px;
            padding-right: 24px;
        }

        .site-header .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: .65rem;
            margin-right: 1rem;
            padding: 8px 0;
            font-size: 0;
        }

        .brand-mark {
            background: var(--site-brand);
            color: #fff;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 15px;
            letter-spacing: .04em;
            box-shadow: 0 6px 14px rgba(46, 125, 191, 0.22);
        }

        .brand-text {
            font-size: 1.16rem;
            font-weight: 800;
            color: var(--site-brand-dark);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }

        .site-header .navbar-nav {
            gap: 4px;
        }

        .site-header .navbar-nav .nav-link {
            display: inline-block;
            position: relative;
            padding: .6rem 1.1rem;
            font-size: 16px;
            font-weight: 500;
            color: #32404E;
            border-radius: 8px;
            text-decoration: none;
            transition: background .2s, color .2s;
        }

        .site-header .navbar-nav .nav-link:hover {
            color: var(--site-brand);
            background: var(--site-brand-soft);
        }

        .site-header .navbar-nav .nav-link.active {
            color: var(--site-brand);
            font-weight: 700;
        }

        .site-header .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            bottom: 2px;
            width: 22px;
            height: 3px;
            border-radius: 3px;
            background: var(--site-brand);
        }

        .site-toggler {
            border: 1px solid transparent;
            background: transparent;
            width: 44px;
            height: 44px;
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 0;
            border-radius: 8px;
        }

        .site-toggler span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--site-brand-dark);
            margin: 3px 0;
            border-radius: 2px;
            transition: all .25s ease;
        }

        .site-toggler:focus {
            box-shadow: none;
            background: var(--site-brand-soft);
        }

        /* Page head */
        .page-head {
            background: #FFFFFF;
            border-bottom: 1px solid var(--site-border-light);
            padding: 50px 0 26px;
            position: relative;
            overflow: hidden;
        }

        .page-head::before {
            content: "";
            position: absolute;
            right: -80px;
            top: -60px;
            width: 320px;
            height: 320px;
            background: rgba(229, 240, 248, 0.5);
            border-radius: 50%;
            z-index: 0;
        }

        .page-head .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: .5rem;
            font-size: 14px;
            color: var(--site-muted);
            margin-bottom: 18px;
        }

        .breadcrumb-nav a {
            color: var(--site-muted);
            text-decoration: none;
        }

        .breadcrumb-nav a:hover {
            color: var(--site-brand);
        }

        .breadcrumb-nav .sep {
            color: #B4C2CE;
        }

        .breadcrumb-nav .current {
            color: var(--site-text);
            font-weight: 600;
        }

        .page-head h1 {
            font-size: 32px;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 10px;
        }

        .page-head .lead {
            color: var(--site-subtext);
            font-size: 16px;
            max-width: 820px;
            margin-bottom: 0;
        }

        .page-note {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            font-size: 13px;
            background: var(--site-brand-soft);
            color: var(--site-brand-dark);
            border-radius: 999px;
            padding: 4px 12px;
            margin-bottom: 14px;
        }

        /* Category cover */
        .category-cover {
            position: relative;
            min-height: 360px;
            background-position: center;
            background-size: cover;
            background-color: #244e6c;
            background-repeat: no-repeat;
            display: flex;
            align-items: center;
            padding: 70px 0;
            margin-bottom: 88px;
        }

        .category-cover .cover-overlay {
            position: absolute;
            inset: 0;
            background: rgba(20, 45, 68, 0.58);
        }

        .category-cover .container {
            position: relative;
            z-index: 2;
        }

        .category-cover h2 {
            color: #fff;
            font-size: 30px;
            font-weight: 800;
            max-width: 760px;
            margin-bottom: 14px;
        }

        .category-cover p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 16px;
            max-width: 680px;
            margin-bottom: 26px;
        }

        .category-cover .btn {
            margin-right: 10px;
            margin-bottom: 10px;
        }

        .badge-type {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            background: rgba(255, 255, 255, 0.16);
            color: #fff;
            font-size: 14px;
            border-radius: var(--radius-tag);
            padding: 6px 14px;
            margin-bottom: 18px;
            font-weight: 600;
        }

        .badge-type i {
            color: #F0C97B;
        }

        /* Section heading */
        .section-heading {
            margin-bottom: 48px;
        }

        .section-heading .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: .5rem;
            font-weight: 700;
            color: var(--site-brand);
            background: var(--site-brand-soft);
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 14px;
            margin-bottom: 12px;
        }

        .section-heading h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .section-heading p {
            color: var(--site-subtext);
            max-width: 720px;
            font-size: 16px;
        }

        /* Feature area */
        .feature-area {
            padding-bottom: 30px;
        }

        .feature-row {
            background: #FFFFFF;
            border: 1px solid var(--site-border-light);
            border-radius: 20px;
            box-shadow: var(--shadow-card);
            padding: 44px 40px;
            margin-bottom: 26px;
            transition: transform .25s ease, box-shadow .25s ease;
        }

        .feature-row:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .feature-media,
        .feature-content {
            display: block;
        }

        .feature-media img {
            width: 100%;
            height: 100%;
            min-height: 240px;
            max-height: 360px;
            object-fit: cover;
            border-radius: 14px;
            background: var(--site-brand-soft);
            box-shadow: 0 8px 20px rgba(20, 45, 68, 0.08);
        }

        .feature-count {
            font-size: 15px;
            font-weight: 800;
            color: var(--site-brand);
            letter-spacing: .06em;
            margin-bottom: 4px;
        }

        .feature-tag {
            display: inline-block;
            font-size: 13px;
            line-height: 1;
            padding: 5px 11px;
            border-radius: var(--radius-tag);
            background: var(--site-brand-soft);
            color: var(--site-brand-dark);
            font-weight: 600;
            margin-bottom: 10px;
        }

        .feature-content h3 {
            font-size: 23px;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .feature-content p {
            color: var(--site-subtext);
            margin-bottom: 16px;
        }

        .feature-check-list {
            list-style: none;
            padding: 0;
            margin: 0 0 18px;
        }

        .feature-check-list li {
            display: flex;
            align-items: flex-start;
            gap: .55rem;
            margin-bottom: 8px;
            color: #3C4D5C;
            font-size: 15px;
        }

        .feature-check-list li i {
            color: var(--site-brand);
            margin-top: 6px;
            font-size: 14px;
        }

        .feature-link-line {
            border-top: 1px solid var(--site-border);
            padding-top: 14px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .feature-link-line .audience-label {
            font-size: 14px;
            color: var(--site-muted);
            background: #F8FBFE;
            border: 1px solid var(--site-border);
            padding: 4px 12px;
            border-radius: 999px;
        }

        /* Compare */
        .compare-section {
            background: #FFFFFF;
            border-top: 1px solid var(--site-border-light);
            border-bottom: 1px solid var(--site-border-light);
            padding-top: 80px;
            padding-bottom: 80px;
        }

        .compare-panel {
            background: #fff;
            border: 1px solid var(--site-border-light);
            border-radius: 20px;
            box-shadow: var(--shadow-card);
            padding: 36px 30px;
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
            color: var(--site-text);
        }

        .compare-table th {
            background: var(--site-brand-soft);
            color: #183C57;
            text-align: left;
            font-weight: 700;
            padding: 14px 16px;
            border-bottom: 2px solid #C7DCEA;
        }

        .compare-table td {
            padding: 15px 16px;
            border-bottom: 1px solid var(--site-border);
            vertical-align: top;
            line-height: 1.7;
        }

        .compare-table tbody tr:nth-child(even) {
            background: #F7FBFE;
        }

        .compare-table tbody tr:hover {
            background: #EDF5FB;
        }

        .compare-table td a {
            color: var(--site-brand);
            font-weight: 600;
        }

        .table-note {
            margin-top: 16px;
            font-size: 14px;
            color: var(--site-muted);
        }

        /* Process */
        .process-section {
            padding-top: 80px;
            padding-bottom: 80px;
        }

        .step-item {
            background: #FFFFFF;
            border: 1px solid var(--site-border-light);
            border-top: 3px solid var(--site-brand);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            position: relative;
            box-shadow: var(--shadow-card);
            transition: transform .2s ease, box-shadow .2s ease;
            height: 100%;
        }

        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .step-number {
            width: 52px;
            height: 52px;
            background: var(--site-brand-soft);
            color: var(--site-brand-dark);
            font-weight: 800;
            font-size: 18px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }

        .step-item h3 {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .step-item p {
            color: var(--site-subtext);
            font-size: 15px;
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-section {
            background: #FFFFFF;
            border-top: 1px solid var(--site-border-light);
            border-bottom: 1px solid var(--site-border-light);
            padding-top: 80px;
            padding-bottom: 90px;
        }

        .faq-accordion .accordion-item {
            border: 1px solid var(--site-border-light) !important;
            border-radius: 14px !important;
            background: #fff;
            box-shadow: 0 4px 18px rgba(26, 45, 80, 0.04);
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-accordion .accordion-button {
            font-size: 16px;
            font-weight: 700;
            color: var(--site-text);
            padding: 18px 22px;
            background: #fff;
            border: 0;
            box-shadow: none;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: #F3F9FE;
            color: var(--site-brand-dark);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }

        .faq-accordion .accordion-button::after {
            color: var(--site-brand);
            transition: transform .25s ease;
            opacity: .75;
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            filter: none;
        }

        .faq-accordion .accordion-body {
            color: var(--site-subtext);
            font-size: 16px;
            line-height: 1.8;
            padding: 16px 24px 22px;
            border-top: 1px solid #EAF1F6;
        }

        /* CTA */
        .cta-section {
            position: relative;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            background-color: #1B4B67;
            padding-top: 90px;
            padding-bottom: 90px;
        }

        .cta-section .cta-overlay {
            position: absolute;
            inset: 0;
            background-color: rgba(30, 81, 113, 0.82);
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-title {
            color: #fff;
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.92);
            font-size: 17px;
            max-width: 700px;
            margin-bottom: 28px;
        }

        .cta-footnote {
            margin-top: 30px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
        }

        /* Footer */
        .site-footer {
            background: var(--site-footer);
            color: var(--site-footer-text);
            padding-top: 56px;
            padding-bottom: 22px;
        }

        .site-footer .footer-brand-title {
            display: flex;
            align-items: center;
            gap: .65rem;
            font-size: 17px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .site-footer .brand-mark {
            width: 34px;
            height: 34px;
            font-size: 13px;
            border-radius: 8px;
        }

        .footer-desc {
            font-size: 14px;
            color: #B7C3CC;
            max-width: 360px;
            margin-bottom: 0;
        }

        .site-footer h3 {
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-menu {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-menu li {
            margin-bottom: 10px;
        }

        .footer-menu a {
            color: #B7C3CC;
            font-size: 14px;
            text-decoration: none;
            transition: color .2s;
        }

        .footer-menu a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 40px;
            padding-top: 18px;
            display: flex;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: #8FA1AF;
        }

        @media (max-width: 991.98px) {
            body {
                font-size: 15px;
            }

            .site-header .navbar-collapse {
                background: #fff;
                border-radius: 14px;
                padding: 12px 14px 18px;
                box-shadow: 0 18px 40px rgba(26, 45, 80, 0.10);
                margin-top: 8px;
                border: 1px solid var(--site-border-light);
            }

            .site-header .navbar-nav {
                gap: 2px;
                width: 100%;
            }

            .site-header .navbar-nav .nav-link {
                display: block;
                padding: .7rem .9rem;
                border-bottom: 1px solid #EAF1F6;
                border-radius: 0;
                font-size: 15px;
            }

            .site-header .navbar-nav .nav-link.active::after {
                width: 4px;
                height: 22px;
                left: 0;
                top: 50%;
                bottom: auto;
                transform: translateY(-50%);
                border-radius: 4px;
            }

            .page-head {
                padding-top: 36px;
                padding-bottom: 20px;
            }

            .page-head h1 {
                font-size: 28px;
            }

            .category-cover {
                min-height: 300px;
                margin-bottom: 64px;
                padding: 50px 0;
            }

            .category-cover h2 {
                font-size: 25px;
            }

            .feature-row {
                padding: 30px 24px;
            }

            .feature-media img {
                min-height: 200px;
            }

            .section {
                padding-top: 56px;
                padding-bottom: 56px;
            }
        }

        @media (max-width: 767.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .site-header .navbar .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .site-toggler span {
                margin: 3px 0;
            }

            .brand-text {
                font-size: 1rem;
                max-width: 180px;
                white-space: normal;
                line-height: 1.3;
            }

            .page-head {
                padding: 30px 0 18px;
            }

            .page-head h1 {
                font-size: 24px;
            }

            .category-cover {
                min-height: auto;
                padding: 44px 0;
                margin-bottom: 56px;
            }

            .category-cover h2 {
                font-size: 22px;
            }

            .category-cover p {
                font-size: 15px;
            }

            .btn {
                width: 100%;
                margin-bottom: 8px;
            }

            .category-cover .btn {
                width: auto;
            }

            .section-heading h2 {
                font-size: 22px;
            }

            .feature-row {
                padding: 24px 18px;
                border-radius: 16px;
            }

            .feature-content h3 {
                font-size: 20px;
            }

            .feature-link-line {
                flex-direction: column;
                align-items: flex-start;
            }

            .compare-panel {
                padding: 22px 12px;
            }

            .process-section,
            .compare-section,
            .faq-section {
                padding-top: 48px;
                padding-bottom: 48px;
            }

            .step-item {
                padding: 22px 18px;
                margin-bottom: 14px;
            }

            .faq-accordion .accordion-button {
                font-size: 15px;
                padding: 16px;
            }

            .cta-section {
                padding: 56px 0;
            }

            .cta-title {
                font-size: 24px;
            }

            .site-footer {
                padding-top: 40px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category3 */
:root {
            --hth-primary: #2E7DBF;
            --hth-primary-dark: #1C5C89;
            --hth-primary-light: #E5F0F8;
            --hth-bg: #F6F9FC;
            --hth-card: #FFFFFF;
            --hth-accent: #C79A54;
            --hth-text: #1F2A35;
            --hth-text-2: #5B6B7A;
            --hth-text-3: #7B8A99;
            --hth-border: #DCE7EF;
            --hth-border-light: #E3EBF2;
            --hth-footer-bg: #233039;
            --hth-footer-text: #EAF0F5;
            --hth-radius-lg: 16px;
            --hth-radius-sm: 8px;
            --hth-radius-tag: 4px;
            --hth-shadow-sm: 0 6px 24px rgba(26, 45, 80, 0.06);
            --hth-shadow-md: 0 14px 34px rgba(26, 45, 80, 0.10);
            --hth-font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
            --hth-header-height: 72px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--hth-font);
            background-color: var(--hth-bg);
            color: var(--hth-text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        img,
        svg {
            max-width: 100%;
            vertical-align: middle;
        }

        a {
            color: var(--hth-primary);
            text-decoration: none;
            transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
        }

        a:hover {
            color: var(--hth-primary-dark);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .site-main {
            min-height: 60vh;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1030;
            background: #FFFFFF;
            border-bottom: 1px solid var(--hth-border);
            box-shadow: 0 4px 18px rgba(26, 45, 80, 0.04);
        }

        .site-header .navbar {
            min-height: var(--hth-header-height);
            padding-top: 0;
            padding-bottom: 0;
        }

        .site-header .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin: 0;
            padding: 0;
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex: 0 0 auto;
            width: 34px;
            height: 34px;
            border-radius: 6px;
            background: var(--hth-primary);
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 800;
            line-height: 1;
            letter-spacing: 0;
        }

        .brand-text {
            color: var(--hth-text);
            font-size: 17px;
            font-weight: 800;
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .site-header .navbar-nav {
            gap: 4px;
        }

        .site-header .navbar-nav .nav-link {
            position: relative;
            padding: 10px 16px;
            color: #32404E;
            font-size: 16px;
            font-weight: 600;
            white-space: nowrap;
            border-radius: 8px;
        }

        .site-header .navbar-nav .nav-link:hover,
        .site-header .navbar-nav .nav-link.active {
            color: var(--hth-primary);
        }

        .site-header .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 0;
            height: 3px;
            border-radius: 3px;
            background: var(--hth-primary);
        }

        .site-toggler {
            display: inline-flex;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            padding: 11px 10px;
            border: 0;
            background: transparent;
        }

        .site-toggler span {
            display: block;
            width: 100%;
            height: 2px;
            border-radius: 2px;
            background: var(--hth-text);
            transition: opacity 0.2s ease, transform 0.2s ease;
        }

        .site-toggler.collapsed span:nth-child(2) {
            opacity: 1;
        }

        .site-toggler.collapsed span:first-child {
            transform: translateY(0);
        }

        .site-toggler.collapsed span:last-child {
            transform: translateY(0);
        }

        .site-toggler:not(.collapsed) span:first-child {
            transform: translateY(7px) rotate(45deg);
        }

        .site-toggler:not(.collapsed) span:nth-child(2) {
            opacity: 0;
        }

        .site-toggler:not(.collapsed) span:last-child {
            transform: translateY(-7px) rotate(-45deg);
        }

        @media (max-width: 991.98px) {
            .site-header .navbar-collapse {
                background: #FFFFFF;
                padding: 14px 0 18px;
                border-radius: 0 0 16px 16px;
            }

            .site-header .navbar-nav {
                border-top: 1px solid var(--hth-border);
                padding-top: 12px;
                gap: 0;
            }

            .site-header .navbar-nav .nav-link {
                display: block;
                padding: 14px 16px;
                border-bottom: 1px solid #EEF4F8;
                font-size: 16px;
            }

            .site-header .navbar-nav .nav-link.active::after {
                display: none;
            }

            .site-header .navbar-nav .nav-link.active {
                background: var(--hth-primary-light);
            }
        }

        @media (min-width: 992px) {
            .navbar-expand-lg .navbar-collapse {
                display: flex !important;
                flex-basis: auto;
            }

            .navbar-expand-lg .navbar-toggler {
                display: none;
            }
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            padding: 68px 0 62px;
            background: #EAEFF5 url('/assets/images/backpic/back-2.webp') center 20% / cover no-repeat;
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(246, 249, 252, 0.93);
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
        }

        .page-hero .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 4px;
            margin: 0 0 18px;
            padding: 0;
            background: transparent;
            list-style: none;
            font-size: 14px;
            color: var(--hth-text-3);
        }

        .page-hero .breadcrumb li + li::before {
            content: "›";
            padding: 0 6px;
            color: var(--hth-text-3);
        }

        .page-hero .breadcrumb a {
            color: var(--hth-text-2);
        }

        .page-hero .breadcrumb a:hover {
            color: var(--hth-primary);
        }

        .page-hero .breadcrumb .active {
            color: var(--hth-text);
            font-weight: 600;
        }

        .page-hero h1 {
            margin: 0 0 16px;
            font-size: 33px;
            line-height: 1.3;
            color: var(--hth-text);
            letter-spacing: -0.01em;
            font-weight: 800;
        }

        .page-hero .page-hero-lead {
            max-width: 750px;
            margin: 0;
            font-size: 16px;
            line-height: 1.85;
            color: var(--hth-text-2);
        }

        @media (max-width: 767.98px) {
            .page-hero {
                padding: 46px 0 44px;
            }

            .page-hero h1 {
                font-size: 26px;
            }

            .page-hero .page-hero-lead {
                font-size: 15px;
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== FAQ layout ===== */
        .faq-help-section {
            padding: 56px 0 48px;
        }

        .faq-split {
            display: grid;
            grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
            gap: 28px;
            align-items: start;
        }

        .faq-main-col {
            min-width: 0;
        }

        .faq-aside-col {
            min-width: 0;
        }

        @media (max-width: 991.98px) {
            .faq-help-section {
                padding-top: 40px;
            }

            .faq-split {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ===== Search panel ===== */
        .faq-search-panel {
            background: #FFFFFF;
            border: 1px solid var(--hth-border-light);
            border-radius: var(--hth-radius-lg);
            box-shadow: var(--hth-shadow-sm);
            padding: 24px;
            margin-bottom: 24px;
        }

        .faq-search-panel label {
            display: block;
            margin-bottom: 8px;
            font-size: 15px;
            font-weight: 700;
            color: var(--hth-text);
        }

        .faq-search-row {
            display: flex;
            gap: 12px;
            flex-wrap: nowrap;
        }

        .hth-input,
        .hth-textarea,
        .hth-select {
            width: 100%;
            height: 48px;
            padding: 0 14px;
            border: 1px solid var(--hth-border);
            border-radius: var(--hth-radius-sm);
            background: #F7FAFD;
            color: var(--hth-text);
            font-size: 15px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
        }

        .hth-textarea {
            height: auto;
            min-height: 110px;
            padding-top: 12px;
            padding-bottom: 12px;
            line-height: 1.6;
        }

        .hth-select {
            appearance: auto;
        }

        .hth-input:focus,
        .hth-textarea:focus,
        .hth-select:focus {
            outline: none;
            border-color: var(--hth-primary);
            background: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(46, 125, 191, 0.15);
        }

        .faq-search-panel .hth-input {
            flex: 1 1 auto;
        }

        /* ===== Buttons ===== */
        .btn-site-primary,
        .btn-site-secondary,
        .btn-site-white,
        .btn-site-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 22px;
            border-radius: var(--hth-radius-sm);
            font-size: 15px;
            font-weight: 700;
            border: 1px solid transparent;
            transition: all 0.25s ease;
            white-space: nowrap;
            cursor: pointer;
        }

        .btn-site-primary {
            background: var(--hth-primary);
            border-color: var(--hth-primary);
            color: #FFFFFF;
        }

        .btn-site-primary:hover,
        .btn-site-primary:focus {
            background: var(--hth-primary-dark);
            border-color: var(--hth-primary-dark);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(28, 92, 137, 0.22);
        }

        .btn-site-secondary {
            background: #FFFFFF;
            border-color: var(--hth-primary);
            color: var(--hth-primary);
        }

        .btn-site-secondary:hover,
        .btn-site-secondary:focus {
            background: var(--hth-primary);
            border-color: var(--hth-primary);
            color: #FFFFFF;
            transform: translateY(-2px);
        }

        .btn-site-white {
            background: #FFFFFF;
            border-color: #FFFFFF;
            color: var(--hth-primary);
        }

        .btn-site-white:hover,
        .btn-site-white:focus {
            background: #F3F8FD;
            border-color: #F3F8FD;
            color: var(--hth-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(26, 45, 80, 0.16);
        }

        .btn-site-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.72);
            color: #FFFFFF;
        }

        .btn-site-outline:hover,
        .btn-site-outline:focus {
            background: #FFFFFF;
            border-color: #FFFFFF;
            color: var(--hth-primary-dark);
            transform: translateY(-2px);
        }

        .btn-lg-cta {
            min-width: 180px;
        }

        @media (max-width: 575.98px) {
            .btn-lg-cta {
                min-width: 100%;
            }

            .faq-search-row {
                flex-direction: column;
            }

            .btn-site-primary,
            .btn-site-secondary,
            .btn-site-white,
            .btn-site-outline {
                width: 100%;
            }
        }

        /* ===== FAQ panel ===== */
        .faq-list-heading {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 18px;
        }

        .faq-section-title {
            margin: 0;
            font-size: 24px;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--hth-text);
        }

        .faq-section-note {
            margin: 6px 0 0;
            font-size: 14px;
            color: var(--hth-text-2);
        }

        .entry-faq .accordion-item {
            border: 1px solid var(--hth-border-light);
            border-radius: 12px;
            background: #FFFFFF;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(26, 45, 80, 0.025);
            transition: box-shadow 0.2s ease, transform 0.2s ease;
        }

        .entry-faq .accordion-item:hover {
            box-shadow: var(--hth-shadow-sm);
        }

        .entry-faq .accordion-button {
            position: relative;
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 20px 22px;
            background: #FFFFFF;
            border: 0;
            box-shadow: none;
            font-size: 16px;
            font-weight: 700;
            color: var(--hth-text);
            text-align: left;
            width: 100%;
            border-radius: 0;
        }

        .entry-faq .accordion-button:hover,
        .entry-faq .accordion-button:focus {
            background: #FAFCFE;
            box-shadow: none;
        }

        .entry-faq .accordion-button:not(.collapsed) {
            background: #F9FCFD;
            color: var(--hth-primary);
            border-bottom: 1px solid var(--hth-border-light);
        }

        .entry-faq .accordion-button::after {
            display: none;
        }

        .entry-faq .help-q-icon {
            flex: 0 0 auto;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            border-radius: 8px;
            background: var(--hth-primary-light);
            color: var(--hth-primary);
            font-size: 15px;
        }

        .entry-faq .faq-chevron {
            margin-left: auto;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 24px;
            color: var(--hth-primary);
            transition: transform 0.3s ease;
        }

        .entry-faq .accordion-button:not(.collapsed) .faq-chevron {
            transform: rotate(180deg);
        }

        .entry-faq .accordion-body {
            padding: 4px 22px 24px 64px;
            color: var(--hth-text-2);
            font-size: 15px;
            line-height: 1.85;
            background: #FFFFFF;
        }

        .entry-faq .accordion-body p:last-child {
            margin-bottom: 0;
        }

        .faq-hidden {
            display: none !important;
        }

        .faq-no-result {
            display: none;
            background: #FFFFFF;
            border: 1px solid var(--hth-border-light);
            border-radius: var(--hth-radius-lg);
            padding: 28px;
            text-align: center;
            color: var(--hth-text-2);
            box-shadow: var(--hth-shadow-sm);
        }

        .faq-no-result.show {
            display: block;
        }

        .faq-no-result .empty-circle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--hth-primary-light);
            color: var(--hth-primary);
            font-size: 20px;
            margin-bottom: 12px;
        }

        @media (max-width: 767.98px) {
            .entry-faq .accordion-body {
                padding-left: 22px;
                padding-right: 18px;
            }

            .entry-faq .accordion-button {
                padding: 16px 14px;
                font-size: 15px;
            }

            .faq-section-title {
                font-size: 21px;
            }
        }

        /* ===== Sidebar ===== */
        .faq-aside-col {
            position: sticky;
            top: 92px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .side-panel {
            background: #FFFFFF;
            border: 1px solid var(--hth-border-light);
            border-radius: var(--hth-radius-lg);
            overflow: hidden;
            box-shadow: var(--hth-shadow-sm);
        }

        .side-panel .side-img {
            display: block;
            width: 100%;
            height: 170px;
            object-fit: cover;
            background: var(--hth-primary-light);
        }

        .side-panel-body {
            padding: 24px;
        }

        .side-panel-title {
            margin: 0 0 8px;
            font-size: 18px;
            font-weight: 800;
            color: var(--hth-text);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .side-panel-title i {
            color: var(--hth-primary);
        }

        .side-panel-text {
            margin: 0 0 16px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--hth-text-2);
        }

        .help-form .form-label {
            display: block;
            margin-bottom: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--hth-text);
        }

        .help-form .hth-select,
        .help-form .hth-textarea {
            margin-bottom: 12px;
        }

        .help-form .hth-select {
            height: 44px;
            font-size: 14px;
        }

        .side-tip {
            margin-top: 12px;
            font-size: 12px;
            color: var(--hth-text-3);
            line-height: 1.6;
            text-align: center;
        }

        .side-action {
            margin-top: 14px;
        }

        @media (max-width: 991.98px) {
            .faq-aside-col {
                position: static;
            }
        }

        /* ===== Section spacing ===== */
        .base-py {
            padding: 56px 0;
        }

        .section-mid {
            padding: 48px 0 64px;
        }

        /* ===== Utility cards ===== */
        .guide-next-section {
            padding: 20px 0 56px;
        }

        .guide-next-heading {
            margin-bottom: 28px;
        }

        .guide-next-heading h2 {
            margin: 0 0 8px;
            font-size: 26px;
            font-weight: 800;
            color: var(--hth-text);
        }

        .guide-next-heading p {
            margin: 0;
            color: var(--hth-text-2);
            font-size: 15px;
        }

        .utility-card {
            position: relative;
            display: flex;
            align-items: center;
            height: 100%;
            min-height: 150px;
            padding: 30px;
            background: #FFFFFF;
            border: 1px solid var(--hth-border-light);
            border-radius: var(--hth-radius-lg);
            box-shadow: var(--hth-shadow-sm);
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            color: var(--hth-text);
        }

        .utility-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--hth-shadow-md);
            border-color: #C8DCEA;
            color: var(--hth-text);
        }

        .utility-icon {
            flex: 0 0 auto;
            width: 58px;
            height: 58px;
            border-radius: 14px;
            background: var(--hth-primary-light);
            color: var(--hth-primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-right: 22px;
        }

        .utility-content {
            flex: 1 1 auto;
        }

        .utility-content h3 {
            margin: 0 0 6px;
            font-size: 20px;
            font-weight: 800;
            color: var(--hth-text);
        }

        .utility-content p {
            margin: 0 0 8px;
            font-size: 14px;
            line-height: 1.75;
            color: var(--hth-text-2);
        }

        .utility-content .utility-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 15px;
            font-weight: 700;
            color: var(--hth-primary);
        }

        .utility-content .utility-link i {
            transition: transform 0.25s ease;
        }

        .utility-card:hover .utility-content .utility-link i {
            transform: translateX(4px);
        }

        @media (max-width: 767.98px) {
            .utility-card {
                flex-direction: column;
                text-align: left;
                align-items: flex-start;
                padding: 24px;
            }

            .utility-icon {
                margin-right: 0;
                margin-bottom: 16px;
            }

            .guide-next-heading h2 {
                font-size: 22px;
            }
        }

        /* ===== CTA band ===== */
        .cta-band {
            position: relative;
            padding: 64px 0;
            background: var(--hth-primary) url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            color: #FFFFFF;
        }

        .cta-band::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(46, 125, 191, 0.92);
        }

        .cta-band .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .cta-band h2 {
            margin: 0 0 12px;
            font-size: 30px;
            font-weight: 800;
            color: #FFFFFF;
            letter-spacing: -0.01em;
        }

        .cta-band p {
            max-width: 660px;
            margin: 0 auto 26px;
            font-size: 16px;
            line-height: 1.8;
            color: #E7F1F9;
        }

        .cta-band .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .cta-band .cta-note {
            margin-top: 20px;
            font-size: 13px;
            color: #D8E8F4;
            text-align: center;
        }

        @media (max-width: 767.98px) {
            .cta-band {
                padding: 48px 0;
            }

            .cta-band h2 {
                font-size: 25px;
            }

            .cta-band p {
                font-size: 15px;
            }

            .cta-band .cta-buttons {
                flex-direction: column;
                align-items: stretch;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--hth-footer-bg);
            color: var(--hth-footer-text);
            padding: 62px 0 0;
        }

        .site-footer .footer-brand-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 14px;
        }

        .site-footer .footer-brand-title .brand-mark {
            background: var(--hth-primary);
            color: #FFFFFF;
            width: 32px;
            height: 32px;
            font-size: 14px;
            border-radius: 6px;
        }

        .site-footer .footer-desc {
            margin: 0;
            font-size: 14px;
            line-height: 1.8;
            color: #B7C3CC;
            max-width: 400px;
        }

        .site-footer h3 {
            margin: 0 0 16px;
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 700;
        }

        .site-footer .footer-menu {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .site-footer .footer-menu li {
            margin-bottom: 10px;
        }

        .site-footer .footer-menu a {
            color: #B7C3CC;
            font-size: 14px;
            text-decoration: none;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

        .site-footer .footer-menu a:hover {
            color: #FFFFFF;
            padding-left: 4px;
        }

        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 44px;
            padding: 22px 0 26px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
            color: #9BA9B4;
        }

        @media (max-width: 767.98px) {
            .site-footer {
                padding-top: 48px;
            }

            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        :focus-visible {
            outline: 3px solid rgba(46, 125, 191, 0.35);
            outline-offset: 2px;
        }