/* roulang page: index */
:root {
            --color-primary: #2E3B4E;
            --color-primary-dark: #252E3D;
            --color-accent: #C69C4A;
            --color-teal: #1F9D8B;
            --color-bg: #F4F2ED;
            --color-bg-light: #FAFAF8;
            --color-card: #FFFFFF;
            --color-border: #E6E2D9;
            --color-text: #22282F;
            --color-text-muted: #6E7683;
            --color-text-light: #A6ADB8;
            --color-footer-bg: #252C38;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-tag: 20px;
            --shadow-base: 0 2px 10px rgba(46, 59, 78, 0.06);
            --shadow-hover: 0 8px 24px rgba(46, 59, 78, 0.12);
            --transition: all 0.25s ease;
            --font-stack: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-stack);
            font-size: 15px;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header / Nav */
        .site-header {
            background-color: #FFFFFF;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1040;
            box-shadow: 0 1px 4px rgba(46, 59, 78, 0.05);
        }

        .top-bar {
            background-color: var(--color-primary);
            color: #D5DAE0;
            font-size: 12.5px;
            padding: 5px 0;
            letter-spacing: 0.3px;
        }

        .top-bar a {
            color: #D5DAE0;
            transition: var(--transition);
        }

        .top-bar a:hover {
            color: #FFFFFF;
        }

        .top-bar .divider {
            margin: 0 10px;
            color: #5A6575;
        }

        .main-nav {
            padding: 12px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .brand-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            font-size: 15px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            color: var(--color-primary);
            font-weight: 500;
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
        }

        .nav-links li a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background-color: var(--color-accent);
            transition: width 0.25s ease;
        }

        .nav-links li a:hover::after,
        .nav-links li a.active::after {
            width: 100%;
        }

        .nav-links li a.active {
            color: var(--color-accent);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn-outline-nav {
            border: 1px solid #C7C2B8;
            background: transparent;
            color: var(--color-primary);
            padding: 7px 16px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-outline-nav:hover {
            background-color: var(--color-bg);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .btn-solid-nav {
            border: 1px solid var(--color-primary);
            background: var(--color-primary);
            color: #FFFFFF;
            padding: 7px 16px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-solid-nav:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            color: #FFFFFF;
        }

        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 6px 12px;
            font-size: 18px;
            color: var(--color-primary);
            cursor: pointer;
            transition: var(--transition);
        }

        .navbar-toggler-custom:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        .mobile-nav {
            display: none;
            background-color: #FFFFFF;
            border-top: 1px solid var(--color-border);
            padding: 16px 0;
        }

        .mobile-nav .nav-links-mobile {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .mobile-nav .nav-links-mobile li a {
            display: block;
            padding: 12px 20px;
            color: var(--color-primary);
            font-weight: 500;
            border-bottom: 1px solid #F0EDE5;
            transition: var(--transition);
        }

        .mobile-nav .nav-links-mobile li a:hover {
            background-color: var(--color-bg-light);
            color: var(--color-accent);
            padding-left: 24px;
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 540px;
            display: flex;
            align-items: center;
            background: url('/assets/images/0c26c89c6bfe3e77.webp') center/cover no-repeat;
            color: #FFFFFF;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(46, 59, 78, 0.68);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 60px 0;
        }

        .hero-title {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .hero-subtitle {
            font-size: 16px;
            color: #D5DAE0;
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 28px;
        }

        .hero-cta {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-hero-primary {
            background: var(--color-accent);
            color: #FFFFFF;
            border: 1px solid var(--color-accent);
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
        }

        .btn-hero-primary:hover {
            background: #B8923E;
            border-color: #B8923E;
            color: #FFFFFF;
        }

        .btn-hero-secondary {
            background: transparent;
            color: #FFFFFF;
            border: 1px solid rgba(255, 255, 255, 0.5);
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 15px;
            transition: var(--transition);
        }

        .btn-hero-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #FFFFFF;
            color: #FFFFFF;
        }

        .hero-data-panel {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-card);
            padding: 20px 22px;
        }

        .hero-data-panel h3 {
            font-size: 16px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .hero-data-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.15);
            font-size: 14px;
            color: #E0E4E8;
        }

        .hero-data-item:last-child {
            border-bottom: none;
        }

        .hero-data-item .data-tag {
            background: var(--color-teal);
            color: #FFFFFF;
            padding: 2px 10px;
            border-radius: 12px;
            font-size: 12px;
        }

        /* Section shared */
        .section {
            padding: 64px 0;
        }

        .section-title {
            font-size: 23px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }

        .section-sub {
            font-size: 15px;
            color: var(--color-text-muted);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 32px;
        }

        .section-tag {
            display: inline-block;
            background: rgba(198, 156, 74, 0.12);
            color: #A37F2C;
            font-size: 13px;
            font-weight: 500;
            padding: 4px 14px;
            border-radius: var(--radius-tag);
            margin-bottom: 10px;
        }

        .bg-white-section {
            background: #FFFFFF;
        }

        .bg-light-section {
            background: var(--color-bg-light);
        }

        .bg-dark-section {
            background: var(--color-primary);
            color: #FFFFFF;
        }

        .bg-dark-section .section-title {
            color: #FFFFFF;
        }

        .bg-dark-section .section-sub {
            color: #C5CAD1;
        }

        /* Quick entries */
        .quick-entry-bar {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }

        .quick-entry-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 9px 18px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            transition: var(--transition);
        }

        .quick-entry-item:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-1px);
            box-shadow: var(--shadow-base);
        }

        .quick-entry-item i {
            color: var(--color-teal);
            font-size: 14px;
        }

        /* Service cards */
        .service-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-base);
            transition: var(--transition);
            height: 100%;
        }

        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: #D5D0C4;
        }

        .service-card .card-img-wrap {
            aspect-ratio: 16/9;
            overflow: hidden;
            background-color: #E8E5DE;
        }

        .service-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .service-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }

        .service-card .card-body {
            padding: 22px;
        }

        .service-card .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .service-card .card-text {
            font-size: 14.5px;
            color: var(--color-text-muted);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* Stats */
        .stat-block {
            text-align: center;
            padding: 18px 10px;
        }

        .stat-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1.3;
        }

        .stat-label {
            font-size: 14px;
            color: #C5CAD1;
            margin-top: 4px;
        }

        /* Process steps */
        .process-step {
            text-align: center;
            padding: 20px 16px;
            position: relative;
        }

        .process-step .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 18px;
            margin-bottom: 14px;
            position: relative;
            z-index: 2;
        }

        .process-step .step-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

        .process-step .step-desc {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        .process-arrow {
            position: absolute;
            top: 34px;
            right: -12px;
            font-size: 18px;
            color: #C7C2B8;
            z-index: 1;
        }

        /* Case cards */
        .case-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-base);
            transition: var(--transition);
            height: 100%;
        }

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

        .case-card .card-img-wrap {
            aspect-ratio: 4/3;
            overflow: hidden;
            background-color: #E8E5DE;
        }

        .case-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .case-card .card-body {
            padding: 20px;
        }

        .case-card .case-tag {
            display: inline-block;
            background: rgba(31, 157, 139, 0.1);
            color: var(--color-teal);
            font-size: 12px;
            padding: 3px 12px;
            border-radius: 12px;
            margin-bottom: 8px;
            font-weight: 500;
        }

        .case-card .card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

        .case-card .card-text {
            font-size: 14px;
            color: var(--color-text-muted);
        }

        /* About section */
        .about-media {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-base);
            aspect-ratio: 4/3;
            background-color: #E8E5DE;
        }

        .about-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .about-text p {
            font-size: 15px;
            color: #4A525E;
            line-height: 1.9;
            margin-bottom: 14px;
        }

        /* Topic cards */
        .topic-card {
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 22px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: var(--transition);
            height: 100%;
        }

        .topic-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: #D5D0C4;
            transform: translateY(-2px);
        }

        .topic-card .topic-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(31, 157, 139, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-teal);
            font-size: 18px;
        }

        .topic-card .topic-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 5px;
        }

        .topic-card .topic-desc {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        /* News list */
        .news-list-item {
            display: flex;
            gap: 16px;
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 14px 16px;
            transition: var(--transition);
            margin-bottom: 14px;
            position: relative;
            overflow: hidden;
        }

        .news-list-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--color-accent);
            opacity: 0;
            transition: opacity 0.25s ease;
        }

        .news-list-item:hover::before {
            opacity: 1;
        }

        .news-list-item:hover {
            box-shadow: var(--shadow-base);
            border-color: #D5D0C4;
        }

        .news-list-img {
            width: 120px;
            height: 80px;
            border-radius: 6px;
            overflow: hidden;
            flex-shrink: 0;
            background-color: #E8E5DE;
        }

        .news-list-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-list-content {
            flex: 1;
            min-width: 0;
        }

        .news-list-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-list-summary {
            font-size: 14px;
            color: var(--color-text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.6;
        }

        .news-list-meta {
            font-size: 12.5px;
            color: var(--color-text-light);
            margin-top: 4px;
        }

        /* Partner wall */
        .partner-logo-item {
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 18px 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 72px;
            font-weight: 600;
            font-size: 14px;
            color: #6E7683;
            letter-spacing: 0.5px;
            transition: var(--transition);
        }

        .partner-logo-item:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            box-shadow: var(--shadow-base);
        }

        /* Eco exploration */
        .eco-media {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-base);
            aspect-ratio: 16/10;
            background-color: #E8E5DE;
        }

        .eco-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .eco-text h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
        }

        .eco-text p {
            font-size: 15px;
            color: #4A525E;
            line-height: 1.85;
            margin-bottom: 10px;
        }

        /* FAQ */
        .accordion-custom .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: #FFFFFF;
            transition: var(--transition);
        }

        .accordion-custom .accordion-item:hover {
            border-color: #D5D0C4;
        }

        .accordion-custom .accordion-button {
            background: #FFFFFF;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 16px;
            padding: 16px 20px;
            border: none;
            box-shadow: none;
            transition: var(--transition);
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            background: #FDFBF7;
            color: var(--color-primary);
            border-bottom: 1px solid var(--color-accent);
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 0.2rem rgba(198, 156, 74, 0.15);
            border-color: var(--color-accent);
        }

        .accordion-custom .accordion-button::after {
            transition: transform 0.3s ease;
        }

        .accordion-custom .accordion-body {
            padding: 16px 20px;
            font-size: 15px;
            color: #4A525E;
            line-height: 1.8;
            background: #FFFFFF;
        }

        /* Guarantee */
        .guarantee-strip {
            background: var(--color-primary);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .guarantee-strip .guarantee-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(198, 156, 74, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 22px;
            flex-shrink: 0;
        }

        .guarantee-strip .guarantee-text {
            flex: 1;
            min-width: 200px;
        }

        .guarantee-strip .guarantee-text h4 {
            font-size: 18px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 4px;
        }

        .guarantee-strip .guarantee-text p {
            font-size: 14px;
            color: #C5CAD1;
            margin: 0;
        }

        /* Contact form */
        .contact-form-card {
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-base);
        }

        .contact-form-card .form-label {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
        }

        .contact-form-card .form-control {
            border: 1px solid #D8D3C9;
            border-radius: var(--radius-btn);
            padding: 10px 14px;
            font-size: 15px;
            transition: var(--transition);
            color: var(--color-text);
        }

        .contact-form-card .form-control:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 0.2rem rgba(46, 59, 78, 0.08);
        }

        .contact-form-card textarea.form-control {
            resize: vertical;
            min-height: 100px;
        }

        .btn-submit {
            background: var(--color-primary);
            color: #FFFFFF;
            border: 1px solid var(--color-primary);
            padding: 10px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
        }

        .btn-submit:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            color: #FFFFFF;
        }

        .contact-info-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 14px;
        }

        .contact-info-item i {
            color: var(--color-teal);
            font-size: 16px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .contact-info-item span {
            font-size: 14.5px;
            color: #4A525E;
            line-height: 1.7;
        }

        /* Resource cards */
        .resource-card {
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 22px;
            text-align: center;
            transition: var(--transition);
            height: 100%;
        }

        .resource-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: #D5D0C4;
            transform: translateY(-3px);
        }

        .resource-card .resource-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(198, 156, 74, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 20px;
            margin: 0 auto 12px;
        }

        .resource-card .resource-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 4px;
        }

        .resource-card .resource-desc {
            font-size: 13.5px;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        /* Footer */
        .site-footer {
            background: var(--color-footer-bg);
            color: #A6ADB8;
            padding: 48px 0 24px;
        }

        .site-footer .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 10px;
        }

        .site-footer .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #8E96A2;
        }

        .site-footer .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #D5DAE0;
            margin-bottom: 14px;
        }

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

        .site-footer .footer-links li {
            margin-bottom: 8px;
        }

        .site-footer .footer-links li a {
            color: #8E96A2;
            font-size: 14px;
            transition: var(--transition);
        }

        .site-footer .footer-links li a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            border-top: 1px solid #3A424F;
            margin-top: 32px;
            padding-top: 18px;
            text-align: center;
            font-size: 14px;
            color: #8E96A2;
        }

        .footer-bottom a {
            color: #A6ADB8;
        }

        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* Responsive */
        @media (max-width: 991px) {
            .main-nav {
                gap: 16px;
            }

            .nav-links {
                gap: 18px;
                font-size: 14px;
            }

            .hero-section {
                min-height: 480px;
            }

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

            .section {
                padding: 48px 0;
            }

            .news-list-img {
                width: 100px;
                height: 70px;
            }
        }

        @media (max-width: 767px) {
            .main-nav {
                flex-wrap: nowrap;
            }

            .nav-links {
                display: none;
            }

            .navbar-toggler-custom {
                display: block;
            }

            .mobile-nav.open {
                display: block;
            }

            .nav-actions {
                gap: 8px;
            }

            .btn-outline-nav,
            .btn-solid-nav {
                padding: 6px 12px;
                font-size: 13px;
            }

            .hero-section {
                min-height: 400px;
            }

            .hero-content {
                padding: 40px 0;
            }

            .hero-title {
                font-size: 25px;
            }

            .hero-subtitle {
                font-size: 15px;
            }

            .hero-data-panel {
                margin-top: 24px;
            }

            .stat-number {
                font-size: 26px;
            }

            .process-arrow {
                display: none;
            }

            .news-list-item {
                flex-direction: column;
                gap: 10px;
            }

            .news-list-img {
                width: 100%;
                height: 140px;
            }

            .quick-entry-bar {
                gap: 8px;
            }

            .quick-entry-item {
                padding: 7px 14px;
                font-size: 13px;
            }

            .guarantee-strip {
                padding: 20px;
                flex-direction: column;
                align-items: flex-start;
            }

            .contact-form-card {
                padding: 20px;
            }
        }

        @media (max-width: 575px) {
            .section {
                padding: 36px 0;
            }

            .section-title {
                font-size: 20px;
            }

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

            .hero-subtitle {
                font-size: 14px;
            }

            .hero-cta .btn-hero-primary,
            .hero-cta .btn-hero-secondary {
                width: 100%;
                text-align: center;
            }

            .btn-submit {
                width: 100%;
            }

            .partner-logo-item {
                min-height: 56px;
                font-size: 13px;
                padding: 12px 10px;
            }

            .service-card .card-body {
                padding: 16px;
            }

            .case-card .card-body {
                padding: 14px;
            }

            .topic-card {
                padding: 16px;
            }

            .news-list-item {
                padding: 12px;
            }

            .resource-card {
                padding: 16px;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #2E3B4E;
            --color-primary-dark: #252E3D;
            --color-accent: #C69C4A;
            --color-teal: #1F9D8B;
            --color-bg: #F4F2ED;
            --color-bg-light: #FAFAF8;
            --color-card: #FFFFFF;
            --color-border: #E6E2D9;
            --color-text: #22282F;
            --color-text-muted: #6E7683;
            --color-text-light: #A6ADB8;
            --color-footer-bg: #252C38;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-tag: 20px;
            --shadow-base: 0 2px 10px rgba(46, 59, 78, 0.06);
            --shadow-hover: 0 8px 24px rgba(46, 59, 78, 0.12);
            --transition: all 0.25s ease;
            --font-stack: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-stack);
            font-size: 15px;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header / Nav */
        .site-header {
            background-color: #FFFFFF;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1040;
            box-shadow: 0 1px 4px rgba(46, 59, 78, 0.05);
        }

        .top-bar {
            background-color: var(--color-primary);
            color: #D5DAE0;
            font-size: 13px;
            padding: 7px 0;
            line-height: 1.6;
        }

        .top-bar a {
            color: #D5DAE0;
            transition: var(--transition);
        }

        .top-bar a:hover {
            color: #FFFFFF;
        }

        .top-bar .divider {
            margin: 0 10px;
            color: #5A6575;
        }

        .main-nav {
            padding: 12px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .brand-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            font-size: 15px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            color: var(--color-primary);
            font-weight: 500;
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
        }

        .nav-links li a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background-color: var(--color-accent);
            transition: width 0.25s ease;
        }

        .nav-links li a:hover::after,
        .nav-links li a.active::after {
            width: 100%;
        }

        .nav-links li a.active {
            color: var(--color-accent);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn-outline-nav {
            border: 1px solid #C7C2B8;
            background: transparent;
            color: var(--color-primary);
            padding: 7px 16px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-outline-nav:hover {
            background-color: var(--color-bg);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .btn-solid-nav {
            border: 1px solid var(--color-primary);
            background: var(--color-primary);
            color: #FFFFFF;
            padding: 7px 16px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-solid-nav:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            color: #FFFFFF;
        }

        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 6px 12px;
            font-size: 18px;
            color: var(--color-primary);
            cursor: pointer;
            transition: var(--transition);
        }

        .navbar-toggler-custom:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        .mobile-nav {
            display: none;
            background-color: #FFFFFF;
            border-top: 1px solid var(--color-border);
            padding: 16px 0;
        }

        .mobile-nav .nav-links-mobile {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .mobile-nav .nav-links-mobile li a {
            display: block;
            padding: 12px 20px;
            color: var(--color-primary);
            font-weight: 500;
            border-bottom: 1px solid #F0EDE5;
            transition: var(--transition);
        }

        .mobile-nav .nav-links-mobile li a:hover {
            background-color: var(--color-bg-light);
            color: var(--color-accent);
        }

        /* Category Page Header */
        .category-header {
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 72px 0 56px;
            overflow: hidden;
        }

        .category-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(46, 59, 78, 0.88) 0%, rgba(37, 46, 61, 0.72) 100%);
            z-index: 1;
        }

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

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 16px;
        }

        .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.75);
        }

        .breadcrumb-custom a:hover {
            color: var(--color-accent);
        }

        .breadcrumb-custom .separator {
            color: rgba(255, 255, 255, 0.5);
        }

        .category-header h1 {
            font-size: 30px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
            line-height: 1.4;
        }

        .category-header .header-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 720px;
            line-height: 1.9;
        }

        /* Section Base */
        .section-block {
            padding: 56px 0;
        }

        .section-block.bg-light {
            background-color: var(--color-bg-light);
        }

        .section-block.bg-white {
            background-color: #FFFFFF;
        }

        .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-muted);
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .section-title-wrapper {
            margin-bottom: 28px;
        }

        .section-title-wrapper .accent-bar {
            display: inline-block;
            width: 36px;
            height: 3px;
            background-color: var(--color-accent);
            border-radius: 2px;
            margin-bottom: 10px;
        }

        /* Timeline / Event List */
        .event-timeline {
            position: relative;
            padding-left: 30px;
            border-left: 2px solid var(--color-border);
        }

        .event-timeline-item {
            position: relative;
            margin-bottom: 28px;
            padding-left: 20px;
        }

        .event-timeline-item::before {
            content: '';
            position: absolute;
            left: -37px;
            top: 16px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: var(--color-teal);
            border: 2px solid #FFFFFF;
            box-shadow: 0 0 0 3px rgba(31, 157, 139, 0.2);
        }

        .event-timeline-item .event-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            box-shadow: var(--shadow-base);
            transition: var(--transition);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            flex-wrap: wrap;
        }

        .event-timeline-item .event-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-left: 3px solid var(--color-accent);
        }

        .event-card .event-date {
            min-width: 70px;
            text-align: center;
            background: var(--color-bg);
            border-radius: 8px;
            padding: 10px 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            line-height: 1.3;
            flex-shrink: 0;
        }

        .event-card .event-date .month {
            display: block;
            font-size: 12px;
            font-weight: 400;
            color: var(--color-text-muted);
        }

        .event-card .event-info {
            flex: 1;
            min-width: 200px;
        }

        .event-card .event-info h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .event-card .event-info p {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 8px;
            line-height: 1.7;
        }

        .event-card .event-meta {
            font-size: 13px;
            color: var(--color-text-light);
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .event-card .event-meta i {
            color: var(--color-teal);
            margin-right: 4px;
        }

        /* Tag Filter */
        .tag-filter {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 24px;
        }

        .tag-filter .filter-tag {
            display: inline-block;
            padding: 7px 18px;
            border-radius: var(--radius-tag);
            font-size: 14px;
            font-weight: 500;
            border: 1px solid var(--color-border);
            background: #FFFFFF;
            color: var(--color-text-muted);
            transition: var(--transition);
            cursor: pointer;
            text-decoration: none;
        }

        .tag-filter .filter-tag:hover {
            border-color: var(--color-teal);
            color: var(--color-teal);
            background: rgba(31, 157, 139, 0.05);
        }

        .tag-filter .filter-tag.active {
            border-color: var(--color-teal);
            background: var(--color-teal);
            color: #FFFFFF;
        }

        /* Upcoming Schedule Cards */
        .schedule-card {
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-base);
            text-align: center;
            transition: var(--transition);
            height: 100%;
        }

        .schedule-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--color-accent);
        }

        .schedule-card .schedule-day {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-teal);
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }

        .schedule-card .schedule-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .schedule-card .schedule-location {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 4px;
        }

        .schedule-card .schedule-status {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            padding: 3px 12px;
            border-radius: var(--radius-tag);
            background: rgba(31, 157, 139, 0.1);
            color: var(--color-teal);
        }

        /* Event Review Cards */
        .review-card {
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-base);
            transition: var(--transition);
            height: 100%;
        }

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

        .review-card .review-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }

        .review-card .review-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .review-card:hover .review-img-wrap img {
            transform: scale(1.04);
        }

        .review-card .review-body {
            padding: 18px 20px;
        }

        .review-card .review-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            padding: 3px 12px;
            border-radius: var(--radius-tag);
            background: rgba(198, 156, 74, 0.12);
            color: var(--color-accent);
            margin-bottom: 8px;
        }

        .review-card .review-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .review-card .review-summary {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        /* Stats */
        .stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        .stat-item {
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            text-align: center;
            flex: 1;
            min-width: 140px;
            box-shadow: var(--shadow-base);
            transition: var(--transition);
        }

        .stat-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--color-accent);
        }

        .stat-item .stat-number {
            font-size: 30px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.3;
            margin-bottom: 4px;
        }

        .stat-item .stat-number span {
            color: var(--color-accent);
            font-size: 20px;
        }

        .stat-item .stat-label {
            font-size: 14px;
            color: var(--color-text-muted);
        }

        /* Guide Section */
        .guide-box {
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .guide-box .guide-icon {
            font-size: 28px;
            color: var(--color-teal);
            margin-bottom: 12px;
        }

        .guide-box h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
        }

        .guide-box p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 0;
            flex: 1;
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-footer-bg);
            color: #A8AEB8;
            padding: 48px 0 24px;
            font-size: 14px;
            line-height: 1.7;
        }

        .site-footer .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .site-footer .footer-desc {
            color: #A8AEB8;
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .site-footer .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

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

        .site-footer .footer-links li {
            margin-bottom: 8px;
        }

        .site-footer .footer-links a {
            color: #A8AEB8;
            font-size: 14px;
            transition: var(--transition);
        }

        .site-footer .footer-links a:hover {
            color: var(--color-accent);
        }

        .site-footer .footer-bottom {
            margin-top: 36px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 13px;
            color: #7E8796;
        }

        .site-footer .footer-bottom a {
            color: #7E8796;
            margin: 0 6px;
        }

        .site-footer .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* Buttons */
        .btn-primary-custom {
            display: inline-block;
            background: var(--color-primary);
            color: #FFFFFF;
            border: 1px solid var(--color-primary);
            padding: 10px 26px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            text-decoration: none;
            cursor: pointer;
        }

        .btn-primary-custom:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            color: #FFFFFF;
        }

        .btn-secondary-custom {
            display: inline-block;
            background: #FFFFFF;
            color: var(--color-primary);
            border: 1px solid #C7C2B8;
            padding: 10px 26px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            text-decoration: none;
            cursor: pointer;
        }

        .btn-secondary-custom:hover {
            background: var(--color-bg);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .nav-links {
                gap: 18px;
                font-size: 14px;
            }
            .main-nav {
                gap: 16px;
            }
            .category-header {
                padding: 56px 0 44px;
            }
            .category-header h1 {
                font-size: 26px;
            }
            .section-block {
                padding: 44px 0;
            }
        }

        @media (max-width: 767.98px) {
            .nav-links,
            .nav-actions {
                display: none;
            }
            .navbar-toggler-custom {
                display: inline-flex;
                align-items: center;
            }
            .main-nav {
                justify-content: space-between;
            }
            .mobile-nav.show {
                display: block;
            }
            .category-header {
                padding: 44px 0 36px;
            }
            .category-header h1 {
                font-size: 22px;
            }
            .section-block {
                padding: 36px 0;
            }
            .event-timeline {
                padding-left: 20px;
            }
            .event-timeline-item::before {
                left: -27px;
                width: 10px;
                height: 10px;
            }
            .event-timeline-item .event-card {
                padding: 16px;
                flex-direction: column;
            }
            .event-card .event-date {
                min-width: auto;
                text-align: left;
                display: flex;
                gap: 8px;
                align-items: baseline;
                padding: 6px 12px;
            }
            .stats-row {
                gap: 10px;
            }
            .stat-item {
                min-width: 120px;
                padding: 16px;
            }
            .stat-item .stat-number {
                font-size: 24px;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .category-header h1 {
                font-size: 20px;
            }
            .section-title {
                font-size: 19px;
            }
            .stats-row {
                flex-direction: column;
            }
            .stat-item {
                min-width: 100%;
            }
            .tag-filter .filter-tag {
                padding: 5px 14px;
                font-size: 13px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #2E3B4E;
            --color-primary-dark: #252E3D;
            --color-accent: #C69C4A;
            --color-teal: #1F9D8B;
            --color-bg: #F4F2ED;
            --color-bg-light: #FAFAF8;
            --color-card: #FFFFFF;
            --color-border: #E6E2D9;
            --color-text: #22282F;
            --color-text-muted: #6E7683;
            --color-text-light: #A6ADB8;
            --color-footer-bg: #252C38;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-tag: 20px;
            --shadow-base: 0 2px 10px rgba(46, 59, 78, 0.06);
            --shadow-hover: 0 8px 24px rgba(46, 59, 78, 0.12);
            --transition: all 0.25s ease;
            --font-stack: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            text-decoration: none;
            color: var(--color-primary);
            transition: var(--transition);
        }
        a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-stack);
            font-size: 15px;
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header / Nav */
        .site-header {
            background-color: #FFFFFF;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1040;
            box-shadow: 0 1px 4px rgba(46, 59, 78, 0.05);
        }
        .top-bar {
            background-color: var(--color-primary-dark);
            color: #D5DAE0;
            font-size: 13px;
            padding: 6px 0;
        }
        .top-bar a {
            color: #D5DAE0;
            transition: var(--transition);
        }
        .top-bar a:hover {
            color: #FFFFFF;
        }
        .top-bar .divider {
            margin: 0 10px;
            color: #5A6575;
        }
        .main-nav {
            padding: 12px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .brand-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .brand-logo:hover {
            color: var(--color-primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            font-size: 15px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            color: var(--color-primary);
            font-weight: 500;
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
        }
        .nav-links li a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background-color: var(--color-accent);
            transition: width 0.25s ease;
        }
        .nav-links li a:hover::after,
        .nav-links li a.active::after {
            width: 100%;
        }
        .nav-links li a.active {
            color: var(--color-accent);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-outline-nav {
            border: 1px solid #C7C2B8;
            background: transparent;
            color: var(--color-primary);
            padding: 7px 16px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-outline-nav:hover {
            background-color: var(--color-bg);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .btn-solid-nav {
            border: 1px solid var(--color-primary);
            background: var(--color-primary);
            color: #FFFFFF;
            padding: 7px 16px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-solid-nav:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            color: #FFFFFF;
        }
        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 6px 12px;
            font-size: 18px;
            color: var(--color-primary);
            cursor: pointer;
            transition: var(--transition);
        }
        .navbar-toggler-custom:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }
        .mobile-nav {
            display: none;
            background-color: #FFFFFF;
            border-top: 1px solid var(--color-border);
            padding: 16px 0;
        }
        .mobile-nav .nav-links-mobile {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .mobile-nav .nav-links-mobile li a {
            display: block;
            padding: 12px 20px;
            color: var(--color-primary);
            font-weight: 500;
            border-bottom: 1px solid #F0EDE5;
            transition: var(--transition);
        }
        .mobile-nav .nav-links-mobile li a:hover {
            background-color: var(--color-bg-light);
            color: var(--color-accent);
        }

        /* Breadcrumb */
        .breadcrumb-wrapper {
            background-color: transparent;
            padding: 0;
            margin-bottom: 8px;
            font-size: 14px;
            color: var(--color-text-muted);
        }
        .breadcrumb-wrapper .breadcrumb {
            margin: 0;
            padding: 0;
            background: transparent;
        }
        .breadcrumb-wrapper .breadcrumb-item a {
            color: var(--color-text-muted);
        }
        .breadcrumb-wrapper .breadcrumb-item a:hover {
            color: var(--color-accent);
        }
        .breadcrumb-wrapper .breadcrumb-item.active {
            color: var(--color-primary);
            font-weight: 500;
        }
        .breadcrumb-item + .breadcrumb-item::before {
            content: "›";
            color: #B8B2A6;
            margin: 0 8px;
        }

        /* Page Header */
        .page-header {
            background: linear-gradient(135deg, rgba(46, 59, 78, 0.95) 0%, rgba(37, 46, 61, 0.92) 100%), url('/assets/images/0c26c89c6bfe3e77.webp') center/cover no-repeat;
            padding: 64px 0 52px;
            color: #FFFFFF;
            position: relative;
            border-bottom: 4px solid var(--color-accent);
        }
        .page-header .breadcrumb-wrapper {
            color: #B8C0CC;
        }
        .page-header .breadcrumb-wrapper .breadcrumb-item a {
            color: #D5DAE0;
        }
        .page-header .breadcrumb-wrapper .breadcrumb-item a:hover {
            color: var(--color-accent);
        }
        .page-header .breadcrumb-wrapper .breadcrumb-item.active {
            color: #FFFFFF;
        }
        .page-header .breadcrumb-item + .breadcrumb-item::before {
            color: #7A8798;
        }
        .page-header h1 {
            font-size: 30px;
            font-weight: 700;
            color: #FFFFFF;
            margin: 8px 0 12px;
            letter-spacing: 0.5px;
        }
        .page-header .header-desc {
            font-size: 15px;
            color: #D5DAE0;
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* Section */
        .section-block {
            padding: 56px 0;
        }
        .section-block.bg-light-gray {
            background-color: var(--color-bg-light);
        }
        .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-muted);
            margin-bottom: 30px;
            max-width: 680px;
            line-height: 1.8;
        }
        .section-tag {
            display: inline-block;
            background-color: rgba(31, 157, 139, 0.1);
            color: var(--color-teal);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-tag);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        /* Article List Cards */
        .article-list-card {
            display: flex;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-base);
            overflow: hidden;
            margin-bottom: 18px;
            transition: var(--transition);
            position: relative;
        }
        .article-list-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-left: 3px solid var(--color-accent);
        }
        .article-list-card .article-thumb {
            width: 160px;
            min-width: 160px;
            aspect-ratio: 4/3;
            overflow: hidden;
            position: relative;
        }
        .article-list-card .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-list-card .article-body {
            padding: 18px 22px;
            flex: 1;
        }
        .article-list-card .article-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .article-list-card .article-meta {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 8px;
        }
        .article-list-card .article-meta .badge-article {
            display: inline-block;
            background-color: rgba(198, 156, 74, 0.12);
            color: var(--color-accent);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 12px;
            margin-right: 10px;
        }
        .article-list-card .article-summary {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0;
        }
        .article-list-card .article-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 10px;
        }
        .article-list-card .article-link i {
            font-size: 13px;
            transition: transform 0.25s ease;
        }
        .article-list-card .article-link:hover {
            color: var(--color-accent);
        }
        .article-list-card .article-link:hover i {
            transform: translateX(3px);
        }

        /* Tags */
        .tag-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
        }
        .tag-link {
            display: inline-block;
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            color: var(--color-text-muted);
            padding: 7px 18px;
            border-radius: var(--radius-tag);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }
        .tag-link:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background-color: #FFFDF8;
        }
        .tag-link.active-tag {
            background-color: var(--color-primary);
            border-color: var(--color-primary);
            color: #FFFFFF;
        }

        /* Hot Reading Cards */
        .hot-reading-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            box-shadow: var(--shadow-base);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .hot-reading-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .hot-reading-card .hot-index {
            font-size: 26px;
            font-weight: 700;
            color: rgba(198, 156, 74, 0.35);
            line-height: 1;
            margin-bottom: 8px;
        }
        .hot-reading-card .hot-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .hot-reading-card .hot-meta {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-top: auto;
        }

        /* Topic Collection */
        .topic-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 22px 24px;
            box-shadow: var(--shadow-base);
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .topic-card .topic-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: rgba(31, 157, 139, 0.1);
            color: var(--color-teal);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 14px;
        }
        .topic-card .topic-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
        }
        .topic-card .topic-desc {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* Subscribe */
        .subscribe-box {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow-base);
        }
        .subscribe-box .form-control {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 10px 16px;
            font-size: 14px;
            color: var(--color-text);
            transition: var(--transition);
        }
        .subscribe-box .form-control:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 0.2rem rgba(46, 59, 78, 0.08);
            outline: none;
        }
        .subscribe-box .btn-main {
            background: var(--color-primary);
            border: 1px solid var(--color-primary);
            color: #FFFFFF;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }
        .subscribe-box .btn-main:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            color: #FFFFFF;
        }

        /* Resource Cards */
        .resource-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 22px 24px;
            box-shadow: var(--shadow-base);
            transition: var(--transition);
            height: 100%;
        }
        .resource-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .resource-card .resource-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
        }
        .resource-card .resource-desc {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .resource-card .resource-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .resource-card .resource-link:hover {
            color: var(--color-accent);
        }

        /* Buttons */
        .btn-outline-main {
            border: 1px solid #C7C2B8;
            background: transparent;
            color: var(--color-primary);
            padding: 9px 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-outline-main:hover {
            background-color: var(--color-bg);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .btn-solid-main {
            background: var(--color-primary);
            border: 1px solid var(--color-primary);
            color: #FFFFFF;
            padding: 9px 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-solid-main:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            color: #FFFFFF;
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-footer-bg);
            color: #A6ADB8;
            padding: 48px 0 24px;
            font-size: 14px;
        }
        .site-footer .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .site-footer .footer-desc {
            color: #A6ADB8;
            line-height: 1.8;
            font-size: 14px;
            max-width: 300px;
        }
        .site-footer .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 10px;
        }
        .site-footer .footer-links a {
            color: #A6ADB8;
            font-size: 14px;
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--color-accent);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 36px;
            padding-top: 20px;
            text-align: center;
            font-size: 14px;
            color: #8B94A3;
        }
        .site-footer .footer-bottom a {
            color: #A6ADB8;
            transition: var(--transition);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* Responsive */
        @media (max-width: 991px) {
            .nav-links {
                display: none;
            }
            .nav-actions {
                display: none;
            }
            .navbar-toggler-custom {
                display: block;
            }
            .mobile-nav.show {
                display: block;
            }
            .article-list-card .article-thumb {
                width: 120px;
                min-width: 120px;
            }
            .page-header h1 {
                font-size: 26px;
            }
            .section-block {
                padding: 44px 0;
            }
        }
        @media (max-width: 575px) {
            .article-list-card {
                flex-direction: column;
            }
            .article-list-card .article-thumb {
                width: 100%;
                min-width: 100%;
                aspect-ratio: 16/9;
            }
            .article-list-card .article-body {
                padding: 16px 18px;
            }
            .page-header {
                padding: 48px 0 40px;
            }
            .page-header h1 {
                font-size: 24px;
            }
            .subscribe-box {
                padding: 24px 18px;
            }
            .section-block {
                padding: 36px 0;
            }
            .tag-bar {
                gap: 8px;
            }
            .tag-link {
                padding: 6px 14px;
                font-size: 13px;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #2E3B4E;
            --color-primary-dark: #252E3D;
            --color-accent: #C69C4A;
            --color-teal: #1F9D8B;
            --color-bg: #F4F2ED;
            --color-bg-light: #FAFAF8;
            --color-card: #FFFFFF;
            --color-border: #E6E2D9;
            --color-text: #22282F;
            --color-text-muted: #6E7683;
            --color-text-light: #A6ADB8;
            --color-footer-bg: #252C38;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-tag: 20px;
            --shadow-base: 0 2px 10px rgba(46, 59, 78, 0.06);
            --shadow-hover: 0 8px 24px rgba(46, 59, 78, 0.12);
            --transition: all 0.25s ease;
            --font-stack: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-stack);
            font-size: 15px;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header / Nav */
        .site-header {
            background-color: #FFFFFF;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1040;
            box-shadow: 0 1px 4px rgba(46, 59, 78, 0.05);
        }

        .top-bar {
            background-color: var(--color-primary);
            color: #D5DAE0;
            font-size: 13px;
            padding: 6px 0;
            letter-spacing: 0.2px;
        }

        .top-bar a {
            color: #D5DAE0;
            transition: var(--transition);
        }

        .top-bar a:hover {
            color: #FFFFFF;
        }

        .top-bar .divider {
            margin: 0 10px;
            color: #5A6575;
        }

        .main-nav {
            padding: 12px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .brand-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            font-size: 15px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            color: var(--color-primary);
            font-weight: 500;
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
        }

        .nav-links li a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background-color: var(--color-accent);
            transition: width 0.25s ease;
        }

        .nav-links li a:hover::after,
        .nav-links li a.active::after {
            width: 100%;
        }

        .nav-links li a.active {
            color: var(--color-accent);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn-outline-nav {
            border: 1px solid #C7C2B8;
            background: transparent;
            color: var(--color-primary);
            padding: 7px 16px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-outline-nav:hover {
            background-color: var(--color-bg);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .btn-solid-nav {
            border: 1px solid var(--color-primary);
            background: var(--color-primary);
            color: #FFFFFF;
            padding: 7px 16px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-solid-nav:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            color: #FFFFFF;
        }

        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 6px 12px;
            font-size: 18px;
            color: var(--color-primary);
            cursor: pointer;
            transition: var(--transition);
        }

        .navbar-toggler-custom:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        .mobile-nav {
            display: none;
            background-color: #FFFFFF;
            border-top: 1px solid var(--color-border);
            padding: 16px 0;
        }

        .mobile-nav .nav-links-mobile {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .mobile-nav .nav-links-mobile li a {
            display: block;
            padding: 12px 20px;
            color: var(--color-primary);
            font-weight: 500;
            border-bottom: 1px solid #F0EDE5;
            transition: var(--transition);
        }

        .mobile-nav .nav-links-mobile li a:hover {
            background-color: var(--color-bg-light);
            color: var(--color-accent);
        }

        .mobile-nav.open {
            display: block;
        }

        /* Page Header */
        .page-header {
            background-image: linear-gradient(rgba(46, 59, 78, 0.72), rgba(46, 59, 78, 0.72)), url('/assets/images/4333e79357607853.webp');
            background-size: cover;
            background-position: center;
            padding: 72px 0 64px;
            color: #FFFFFF;
            position: relative;
        }

        .page-header .breadcrumb {
            margin-bottom: 18px;
            font-size: 13px;
        }

        .page-header .breadcrumb a {
            color: #D5DAE0;
        }

        .page-header .breadcrumb a:hover {
            color: #FFFFFF;
        }

        .page-header .breadcrumb .breadcrumb-item+.breadcrumb-item::before {
            color: #8A94A3;
        }

        .page-header .breadcrumb .breadcrumb-item.active {
            color: #C7CDD6;
        }

        .page-header h1 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        .page-header .lead {
            font-size: 15px;
            color: #E8EBEF;
            max-width: 720px;
            margin-bottom: 0;
            line-height: 1.8;
        }

        /* Section General */
        .section-block {
            padding: 56px 0;
        }

        .section-block.alt-bg {
            background-color: var(--color-bg-light);
        }

        .section-block.white-bg {
            background-color: #FFFFFF;
        }

        .section-label {
            display: inline-block;
            background-color: rgba(31, 157, 139, 0.1);
            color: var(--color-teal);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-tag);
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--color-text-muted);
            max-width: 780px;
            line-height: 1.85;
            margin-bottom: 0;
        }

        /* Partner Grid */
        .partner-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 20px;
            margin-top: 32px;
        }

        .partner-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-base);
            transition: var(--transition);
            min-height: 180px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .partner-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--color-accent);
        }

        .partner-card .partner-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background-color: rgba(46, 59, 78, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
            color: var(--color-primary);
            font-size: 24px;
        }

        .partner-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }

        .partner-card p {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* Tag Filter */
        .tag-filter {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 28px;
        }

        .tag-filter .tag-link {
            display: inline-block;
            padding: 6px 18px;
            border-radius: var(--radius-tag);
            font-size: 13px;
            font-weight: 500;
            border: 1px solid #D8D3C9;
            color: var(--color-text-muted);
            background: #FFFFFF;
            transition: var(--transition);
        }

        .tag-filter .tag-link:hover,
        .tag-filter .tag-link.active {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background-color: rgba(198, 156, 74, 0.06);
        }

        /* Case Card */
        .case-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-base);
            transition: var(--transition);
            height: 100%;
        }

        .case-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--color-accent);
        }

        .case-card .case-img {
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .case-card .case-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .case-card .case-body {
            padding: 18px 20px;
        }

        .case-card .case-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }

        .case-card .case-body p {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 10px;
            line-height: 1.7;
        }

        .case-card .case-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-teal);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .case-card .case-link:hover {
            color: var(--color-accent);
            gap: 8px;
        }

        /* Process Steps */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
            margin-top: 32px;
        }

        .process-step {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px 22px;
            position: relative;
            box-shadow: var(--shadow-base);
            transition: var(--transition);
        }

        .process-step:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--color-teal);
        }

        .process-step .step-num {
            display: inline-block;
            background-color: var(--color-teal);
            color: #FFFFFF;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            text-align: center;
            line-height: 32px;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .process-step h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* Value Points */
        .value-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
            margin-top: 32px;
        }

        .value-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            background: #FFFFFF;
            border-radius: var(--radius-card);
            padding: 18px 20px;
            border: 1px solid var(--color-border);
            transition: var(--transition);
        }

        .value-item:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-base);
        }

        .value-item .value-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background-color: rgba(198, 156, 74, 0.1);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }

        .value-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 4px;
        }

        .value-item p {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            background-color: var(--color-primary);
            padding: 56px 0;
            color: #FFFFFF;
        }

        .cta-section .section-label {
            background-color: rgba(198, 156, 74, 0.2);
            color: var(--color-accent);
        }

        .cta-section .section-title {
            color: #FFFFFF;
        }

        .cta-section .section-desc {
            color: #C7CDD6;
        }

        .cta-section .form-control {
            background-color: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #FFFFFF;
            border-radius: var(--radius-btn);
            padding: 10px 16px;
            transition: var(--transition);
        }

        .cta-section .form-control::placeholder {
            color: #A6ADB8;
        }

        .cta-section .form-control:focus {
            background-color: rgba(255, 255, 255, 0.12);
            border-color: var(--color-accent);
            box-shadow: 0 0 0 0.2rem rgba(198, 156, 74, 0.2);
            color: #FFFFFF;
        }

        .cta-section .btn-cta {
            background-color: var(--color-accent);
            border: 1px solid var(--color-accent);
            color: var(--color-primary-dark);
            font-weight: 600;
            padding: 10px 28px;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            white-space: nowrap;
        }

        .cta-section .btn-cta:hover {
            background-color: #B88F3A;
            border-color: #B88F3A;
            color: var(--color-primary-dark);
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-footer-bg);
            color: #A6ADB8;
            padding: 56px 0 28px;
            font-size: 14px;
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .footer-desc {
            font-size: 14px;
            color: #A6ADB8;
            line-height: 1.8;
            max-width: 320px;
            margin-bottom: 0;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

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

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links li a {
            color: #A6ADB8;
            font-size: 14px;
            transition: var(--transition);
        }

        .footer-links li a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
            font-size: 13px;
            color: #6E7683;
        }

        .footer-bottom a {
            color: #A6ADB8;
        }

        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        .footer-bottom p {
            margin-bottom: 6px;
        }

        /* Responsive */
        @media (max-width: 991px) {
            .nav-links {
                gap: 18px;
                font-size: 14px;
            }

            .nav-actions .btn-outline-nav span,
            .nav-actions .btn-solid-nav span {
                display: none;
            }

            .btn-outline-nav,
            .btn-solid-nav {
                padding: 7px 12px;
                font-size: 13px;
            }

            .page-header {
                padding: 48px 0 40px;
            }

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

            .section-block {
                padding: 40px 0;
            }

            .partner-grid {
                grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
                gap: 16px;
            }

            .process-steps {
                grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            }
        }

        @media (max-width: 767px) {
            .nav-links {
                display: none;
            }

            .nav-actions {
                display: none;
            }

            .navbar-toggler-custom {
                display: block;
            }

            .main-nav {
                padding: 10px 0;
                gap: 12px;
            }

            .page-header {
                padding: 36px 0 32px;
            }

            .page-header h1 {
                font-size: 22px;
            }

            .page-header .lead {
                font-size: 14px;
            }

            .section-block {
                padding: 32px 0;
            }

            .section-title {
                font-size: 19px;
            }

            .partner-grid {
                grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
                gap: 12px;
            }

            .partner-card {
                padding: 18px 14px;
                min-height: 140px;
            }

            .partner-card .partner-icon {
                width: 44px;
                height: 44px;
                font-size: 20px;
                margin-bottom: 10px;
            }

            .partner-card h3 {
                font-size: 15px;
            }

            .process-steps {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .value-list {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .cta-section {
                padding: 36px 0;
            }

            .site-footer {
                padding: 36px 0 20px;
            }

            .footer-bottom {
                margin-top: 28px;
                padding-top: 16px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }

            .page-header h1 {
                font-size: 20px;
            }

            .page-header .breadcrumb {
                font-size: 12px;
                margin-bottom: 12px;
            }

            .partner-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .partner-card {
                padding: 14px 10px;
                min-height: 120px;
            }

            .partner-card h3 {
                font-size: 14px;
            }

            .partner-card p {
                font-size: 12px;
            }

            .tag-filter {
                gap: 8px;
            }

            .tag-filter .tag-link {
                font-size: 12px;
                padding: 4px 14px;
            }

            .case-card .case-body {
                padding: 14px 16px;
            }

            .case-card .case-body h3 {
                font-size: 15px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #2E3B4E;
            --color-primary-dark: #252E3D;
            --color-accent: #C69C4A;
            --color-teal: #1F9D8B;
            --color-bg: #F4F2ED;
            --color-bg-light: #FAFAF8;
            --color-card: #FFFFFF;
            --color-border: #E6E2D9;
            --color-text: #22282F;
            --color-text-muted: #6E7683;
            --color-text-light: #A6ADB8;
            --color-footer-bg: #252C38;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-tag: 20px;
            --shadow-base: 0 2px 10px rgba(46, 59, 78, 0.06);
            --shadow-hover: 0 8px 24px rgba(46, 59, 78, 0.12);
            --transition: all 0.25s ease;
            --font-stack: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

        a {
            text-decoration: none;
            color: var(--color-primary);
            transition: var(--transition);
        }
        a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, textarea, select {
            font-family: var(--font-stack);
            font-size: 15px;
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header / Nav */
        .site-header {
            background-color: #FFFFFF;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1040;
            box-shadow: 0 1px 4px rgba(46, 59, 78, 0.05);
        }
        .top-bar {
            background-color: var(--color-primary-dark);
            color: #D5DAE0;
            font-size: 13px;
            padding: 6px 0;
        }
        .top-bar a {
            color: #D5DAE0;
            transition: var(--transition);
        }
        .top-bar a:hover {
            color: #FFFFFF;
        }
        .top-bar .divider {
            margin: 0 10px;
            color: #5A6575;
        }
        .main-nav {
            padding: 12px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .brand-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .brand-logo:hover {
            color: var(--color-primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            font-size: 15px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            color: var(--color-primary);
            font-weight: 500;
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
        }
        .nav-links li a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background-color: var(--color-accent);
            transition: width 0.25s ease;
        }
        .nav-links li a:hover::after,
        .nav-links li a.active::after {
            width: 100%;
        }
        .nav-links li a.active {
            color: var(--color-accent);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-outline-nav {
            border: 1px solid #C7C2B8;
            background: transparent;
            color: var(--color-primary);
            padding: 7px 16px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
            cursor: pointer;
        }
        .btn-outline-nav:hover {
            background-color: var(--color-bg);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .btn-solid-nav {
            border: 1px solid var(--color-primary);
            background: var(--color-primary);
            color: #FFFFFF;
            padding: 7px 16px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-solid-nav:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            color: #FFFFFF;
        }
        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 6px 12px;
            font-size: 18px;
            color: var(--color-primary);
            cursor: pointer;
            transition: var(--transition);
        }
        .navbar-toggler-custom:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }
        .mobile-nav {
            display: none;
            background-color: #FFFFFF;
            border-top: 1px solid var(--color-border);
            padding: 16px 0;
        }
        .mobile-nav .nav-links-mobile {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .mobile-nav .nav-links-mobile li a {
            display: block;
            padding: 12px 20px;
            color: var(--color-primary);
            font-weight: 500;
            border-bottom: 1px solid #F0EDE5;
            transition: var(--transition);
        }
        .mobile-nav .nav-links-mobile li a:hover {
            background-color: var(--color-bg-light);
            color: var(--color-accent);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            padding: 18px 0;
            font-size: 14px;
            color: var(--color-text-muted);
        }
        .breadcrumb-section a {
            color: var(--color-text-muted);
            transition: var(--transition);
        }
        .breadcrumb-section a:hover {
            color: var(--color-accent);
        }
        .breadcrumb-section .separator {
            margin: 0 8px;
            color: var(--color-text-light);
        }
        .breadcrumb-section .current {
            color: var(--color-primary);
            font-weight: 500;
        }

        /* Category Hero */
        .category-hero {
            background-color: var(--color-primary);
            background-image: url('/assets/images/4333e79357607853.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 72px 0 80px;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(46, 59, 78, 0.92) 0%, rgba(46, 59, 78, 0.78) 50%, rgba(37, 46, 61, 0.88) 100%);
            z-index: 1;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            left: -80px;
            bottom: -120px;
            width: 350px;
            height: 350px;
            background: rgba(198, 156, 74, 0.22);
            border-radius: 50%;
            z-index: 1;
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero h1 {
            color: #FFFFFF;
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
            max-width: 680px;
        }
        .category-hero .hero-sub {
            color: #D5DAE0;
            font-size: 15px;
            max-width: 620px;
            line-height: 1.85;
        }
        .category-hero .hero-badge {
            display: inline-block;
            background: rgba(198, 156, 74, 0.85);
            color: #FFFFFF;
            font-size: 12px;
            padding: 4px 14px;
            border-radius: var(--radius-tag);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
            font-weight: 500;
        }

        /* Section Styles */
        .section-pad {
            padding: 56px 0;
        }
        .section-pad-alt {
            padding: 56px 0;
            background-color: var(--color-bg-light);
        }
        .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--color-text-muted);
            max-width: 680px;
            line-height: 1.85;
        }

        /* Service Cards */
        .service-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-base);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #D8D0BA;
        }
        .service-card .card-image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background-color: #E8E5DD;
        }
        .service-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .service-card:hover .card-image img {
            transform: scale(1.04);
        }
        .service-card .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .service-card .card-tag {
            font-size: 12px;
            color: var(--color-teal);
            background: rgba(31, 157, 139, 0.08);
            padding: 3px 10px;
            border-radius: var(--radius-tag);
            display: inline-block;
            margin-bottom: 10px;
            font-weight: 500;
            align-self: flex-start;
        }
        .service-card .card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
            letter-spacing: 0.2px;
        }
        .service-card .card-text {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.8;
            flex: 1;
        }
        .service-card .card-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            transition: var(--transition);
        }
        .service-card .card-link i {
            transition: var(--transition);
            font-size: 13px;
        }
        .service-card .card-link:hover {
            color: var(--color-accent);
        }
        .service-card .card-link:hover i {
            transform: translateX(4px);
        }

        /* Service Tags */
        .service-tags-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .service-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-tag);
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            transition: var(--transition);
            white-space: nowrap;
        }
        .service-tag i {
            font-size: 12px;
            color: var(--color-teal);
        }
        .service-tag:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: #FFFFFF;
            box-shadow: var(--shadow-base);
        }

        /* Process Steps */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            margin-top: 24px;
        }
        .process-step {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 22px 18px;
            text-align: left;
            position: relative;
            transition: var(--transition);
        }
        .process-step:hover {
            box-shadow: var(--shadow-hover);
            border-color: #D8D0BA;
            transform: translateY(-2px);
        }
        .process-step .step-num {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
            display: block;
        }
        .process-step .step-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .process-step .step-desc {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.7;
        }
        .process-step .step-icon {
            font-size: 22px;
            color: var(--color-teal);
            margin-bottom: 10px;
            display: block;
        }

        /* Case Cards */
        .case-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-base);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .case-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .case-card .case-image {
            aspect-ratio: 4 / 3;
            overflow: hidden;
            background-color: #E8E5DD;
        }
        .case-card .case-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .case-card:hover .case-image img {
            transform: scale(1.03);
        }
        .case-card .case-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .case-card .case-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .case-card .case-desc {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.75;
            flex: 1;
        }
        .case-card .case-meta {
            font-size: 12px;
            color: var(--color-text-light);
            margin-top: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .case-card .case-meta i {
            color: var(--color-accent);
            font-size: 11px;
        }

        /* Guarantee Items */
        .guarantee-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            height: 100%;
            transition: var(--transition);
        }
        .guarantee-item:hover {
            box-shadow: var(--shadow-base);
            border-color: #D8D0BA;
        }
        .guarantee-item .g-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(31, 157, 139, 0.1);
            color: var(--color-teal);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .guarantee-item .g-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 4px;
        }
        .guarantee-item .g-desc {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.75;
        }

        /* Contact Form */
        .contact-form-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow-base);
        }
        .contact-form-card .form-label {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            margin-bottom: 6px;
        }
        .contact-form-card .form-control {
            border: 1px solid #D8D3C9;
            border-radius: var(--radius-btn);
            padding: 10px 14px;
            font-size: 14px;
            color: var(--color-text);
            transition: var(--transition);
        }
        .contact-form-card .form-control:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 0.2rem rgba(46, 59, 78, 0.08);
            outline: none;
        }
        .contact-form-card textarea.form-control {
            resize: vertical;
            min-height: 100px;
        }
        .btn-submit-form {
            background: var(--color-primary);
            color: #FFFFFF;
            border: 1px solid var(--color-primary);
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            cursor: pointer;
        }
        .btn-submit-form:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            color: #FFFFFF;
        }
        .contact-info-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 10px;
        }
        .contact-info-item i {
            color: var(--color-teal);
            font-size: 15px;
            width: 20px;
            text-align: center;
        }

        /* CTA Bar */
        .cta-bar {
            background: var(--color-primary);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .cta-bar .cta-title {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 6px;
        }
        .cta-bar .cta-desc {
            font-size: 14px;
            color: #D5DAE0;
            max-width: 480px;
            line-height: 1.7;
        }
        .btn-cta-outline {
            border: 1px solid rgba(255, 255, 255, 0.7);
            background: transparent;
            color: #FFFFFF;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-cta-outline:hover {
            background: #FFFFFF;
            color: var(--color-primary);
            border-color: #FFFFFF;
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-footer-bg);
            color: #BFC6D0;
            padding: 48px 0 0;
        }
        .site-footer .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .site-footer .footer-desc {
            font-size: 14px;
            color: #A6ADB8;
            line-height: 1.8;
            max-width: 280px;
        }
        .site-footer .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 10px;
        }
        .site-footer .footer-links a {
            color: #A6ADB8;
            font-size: 14px;
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--color-accent);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            margin-top: 36px;
            text-align: center;
            font-size: 13px;
            color: #8A93A0;
        }
        .site-footer .footer-bottom a {
            color: #A6ADB8;
            transition: var(--transition);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* Responsive */
        @media (max-width: 991px) {
            .nav-links { display: none; }
            .nav-actions { display: none; }
            .navbar-toggler-custom { display: block; }
            .mobile-nav.show { display: block; }
            .process-steps { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 767px) {
            .category-hero { padding: 48px 0 56px; }
            .category-hero h1 { font-size: 24px; }
            .section-pad, .section-pad-alt { padding: 36px 0; }
            .process-steps { grid-template-columns: 1fr; }
            .cta-bar { flex-direction: column; text-align: left; align-items: flex-start; }
            .contact-form-card { padding: 22px 18px; }
            .main-nav { gap: 12px; }
        }
        @media (max-width: 575px) {
            .category-hero h1 { font-size: 21px; }
            .category-hero .hero-sub { font-size: 14px; }
            .btn-outline-nav { display: none; }
            .navbar-toggler-custom { display: block; }
            .section-title { font-size: 19px; }
        }

/* roulang page: category5 */
:root {
            --color-primary: #2E3B4E;
            --color-primary-dark: #252E3D;
            --color-accent: #C69C4A;
            --color-teal: #1F9D8B;
            --color-bg: #F4F2ED;
            --color-bg-light: #FAFAF8;
            --color-card: #FFFFFF;
            --color-border: #E6E2D9;
            --color-text: #22282F;
            --color-text-muted: #6E7683;
            --color-text-light: #A6ADB8;
            --color-footer-bg: #252C38;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-tag: 20px;
            --shadow-base: 0 2px 10px rgba(46, 59, 78, 0.06);
            --shadow-hover: 0 8px 24px rgba(46, 59, 78, 0.12);
            --transition: all 0.25s ease;
            --font-stack: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-stack);
            font-size: 15px;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header / Nav */
        .site-header {
            background-color: #FFFFFF;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1040;
            box-shadow: 0 1px 4px rgba(46, 59, 78, 0.05);
        }

        .top-bar {
            background-color: var(--color-primary);
            color: #D5DAE0;
            font-size: 13px;
            padding: 6px 0;
        }

        .top-bar a {
            color: #D5DAE0;
            transition: var(--transition);
            font-size: 13px;
        }

        .top-bar a:hover {
            color: #FFFFFF;
        }

        .top-bar .divider {
            margin: 0 10px;
            color: #5A6575;
        }

        .main-nav {
            padding: 12px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .brand-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            font-size: 15px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            color: var(--color-primary);
            font-weight: 500;
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
        }

        .nav-links li a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background-color: var(--color-accent);
            transition: width 0.25s ease;
        }

        .nav-links li a:hover::after,
        .nav-links li a.active::after {
            width: 100%;
        }

        .nav-links li a.active {
            color: var(--color-accent);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn-outline-nav {
            border: 1px solid #C7C2B8;
            background: transparent;
            color: var(--color-primary);
            padding: 7px 16px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-outline-nav:hover {
            background-color: var(--color-bg);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .btn-solid-nav {
            border: 1px solid var(--color-primary);
            background: var(--color-primary);
            color: #FFFFFF;
            padding: 7px 16px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-solid-nav:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            color: #FFFFFF;
        }

        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 6px 12px;
            font-size: 18px;
            color: var(--color-primary);
            cursor: pointer;
            transition: var(--transition);
        }

        .navbar-toggler-custom:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        .mobile-nav {
            display: none;
            background-color: #FFFFFF;
            border-top: 1px solid var(--color-border);
            padding: 16px 0;
        }

        .mobile-nav .nav-links-mobile {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .mobile-nav .nav-links-mobile li a {
            display: block;
            padding: 12px 20px;
            color: var(--color-primary);
            font-weight: 500;
            border-bottom: 1px solid #F0EDE5;
            transition: var(--transition);
        }

        .mobile-nav .nav-links-mobile li a:hover {
            background-color: var(--color-bg-light);
            color: var(--color-accent);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            background-color: var(--color-bg);
            padding: 20px 0;
            border-bottom: 1px solid var(--color-border);
        }

        .breadcrumb {
            margin-bottom: 0;
            font-size: 14px;
            color: var(--color-text-muted);
        }

        .breadcrumb a {
            color: var(--color-text-muted);
            transition: var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--color-accent);
        }

        .breadcrumb .active {
            color: var(--color-primary);
            font-weight: 500;
        }

        /* Page Header */
        .page-header {
            background: linear-gradient(180deg, #F4F2ED 0%, #EFECE5 100%);
            padding: 56px 0 48px;
            border-bottom: 1px solid var(--color-border);
            position: relative;
            overflow: hidden;
        }

        .page-header::after {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background-color: rgba(198, 156, 74, 0.08);
            pointer-events: none;
        }

        .page-header h1 {
            font-size: 30px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .page-header .page-subtitle {
            font-size: 16px;
            color: var(--color-text-muted);
            max-width: 680px;
            margin-bottom: 0;
            line-height: 1.8;
        }

        /* Section Common */
        .section-block {
            padding: 64px 0;
        }

        .section-block.bg-white {
            background-color: var(--color-card);
        }

        .section-block.bg-light {
            background-color: var(--color-bg-light);
        }

        .section-block.bg-warm {
            background-color: var(--color-bg);
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-muted);
            margin-bottom: 36px;
            max-width: 720px;
            line-height: 1.8;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-teal);
            background-color: rgba(31, 157, 139, 0.08);
            padding: 4px 14px;
            border-radius: var(--radius-tag);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        /* Cards */
        .card-custom {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-base);
            transition: var(--transition);
            height: 100%;
            padding: 24px;
        }

        .card-custom:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #D8D3C9;
        }

        .card-custom h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .card-custom p {
            font-size: 15px;
            color: var(--color-text-muted);
            margin-bottom: 0;
            line-height: 1.8;
        }

        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-card);
            background-color: rgba(198, 156, 74, 0.1);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .card-icon.teal {
            background-color: rgba(31, 157, 139, 0.1);
            color: var(--color-teal);
        }

        /* Timeline */
        .timeline {
            position: relative;
            padding-left: 32px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 4px;
            bottom: 4px;
            width: 2px;
            background-color: var(--color-border);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 28px;
            padding-left: 28px;
            padding-bottom: 28px;
            border-bottom: 1px dashed #EDE8DE;
        }

        .timeline-item:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background-color: var(--color-accent);
            border: 3px solid #FFFFFF;
            box-shadow: 0 0 0 2px var(--color-accent);
        }

        .timeline-year {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 1px;
            margin-bottom: 4px;
        }

        .timeline-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

        .timeline-desc {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* Team cards */
        .team-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px;
            transition: var(--transition);
            height: 100%;
            box-shadow: var(--shadow-base);
        }

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

        .team-card h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 4px;
        }

        .team-card .team-role {
            font-size: 13px;
            color: var(--color-accent);
            font-weight: 500;
            margin-bottom: 8px;
        }

        .team-card p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* Honor badges */
        .honor-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px;
            text-align: center;
            transition: var(--transition);
            height: 100%;
            box-shadow: var(--shadow-base);
        }

        .honor-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #D8D3C9;
        }

        .honor-card .honor-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background-color: rgba(198, 156, 74, 0.1);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin: 0 auto 12px;
        }

        .honor-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

        .honor-card p {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 0;
        }

        /* CTA / Join */
        .join-cta {
            background: linear-gradient(180deg, #2E3B4E 0%, #252E3D 100%);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            color: #FFFFFF;
            position: relative;
            overflow: hidden;
        }

        .join-cta::after {
            content: '';
            position: absolute;
            right: -40px;
            top: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background-color: rgba(198, 156, 74, 0.1);
            pointer-events: none;
        }

        .join-cta h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 10px;
            color: #FFFFFF;
        }

        .join-cta p {
            font-size: 15px;
            color: #D5DAE0;
            line-height: 1.75;
            margin-bottom: 20px;
            max-width: 560px;
        }

        .btn-outline-light-custom {
            border: 1px solid #C7C2B8;
            background: transparent;
            color: #E6E2D9;
            padding: 9px 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }

        .btn-outline-light-custom:hover {
            background-color: rgba(255, 255, 255, 0.08);
            border-color: var(--color-accent);
            color: #FFFFFF;
        }

        .btn-accent {
            border: 1px solid var(--color-accent);
            background: var(--color-accent);
            color: #FFFFFF;
            padding: 9px 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
        }

        .btn-accent:hover {
            background: #B58A3E;
            border-color: #B58A3E;
            color: #FFFFFF;
        }

        .btn-primary-custom {
            border: 1px solid var(--color-primary);
            background: var(--color-primary);
            color: #FFFFFF;
            padding: 9px 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }

        .btn-primary-custom:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            color: #FFFFFF;
        }

        .btn-outline-custom {
            border: 1px solid #C7C2B8;
            background: transparent;
            color: var(--color-primary);
            padding: 9px 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }

        .btn-outline-custom:hover {
            background-color: var(--color-bg);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

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

        .list-check li {
            padding-left: 28px;
            position: relative;
            margin-bottom: 10px;
            color: var(--color-text-muted);
            font-size: 15px;
            line-height: 1.75;
        }

        .list-check li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 2px;
            color: var(--color-teal);
            font-size: 14px;
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-footer-bg);
            color: #A6ADB8;
            padding: 48px 0 32px;
            margin-top: 0;
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .footer-desc {
            font-size: 14px;
            color: #A6ADB8;
            line-height: 1.75;
            margin-bottom: 0;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

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

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links li a {
            color: #A6ADB8;
            font-size: 14px;
            transition: var(--transition);
        }

        .footer-links li a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 32px;
            padding-top: 20px;
            text-align: center;
            font-size: 14px;
            color: #A6ADB8;
        }

        .footer-bottom a {
            color: #A6ADB8;
            transition: var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* Responsive */
        @media (max-width: 991px) {
            .nav-links,
            .nav-actions {
                display: none !important;
            }
            .navbar-toggler-custom {
                display: inline-block;
            }
            .mobile-nav {
                display: block;
            }
            .mobile-nav.show {
                display: block;
            }
            .mobile-nav:not(.show) {
                display: none;
            }
            .section-block {
                padding: 48px 0;
            }
            .page-header {
                padding: 40px 0 36px;
            }
            .page-header h1 {
                font-size: 24px;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .page-header h1 {
                font-size: 21px;
            }
            .section-title {
                font-size: 20px;
            }
            .join-cta {
                padding: 28px 20px;
            }
            .timeline {
                padding-left: 20px;
            }
            .timeline::before {
                left: 4px;
            }
            .timeline-item {
                padding-left: 20px;
            }
            .timeline-item::before {
                left: -18px;
                width: 12px;
                height: 12px;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}