/* roulang page: index */
:root {
            --primary: #1A2E2A;
            --primary-dark: #0F1D19;
            --accent: #C9A96E;
            --accent-light: #E8D9BE;
            --bg-warm: #FAF8F5;
            --bg-green-gray: #F0F2EE;
            --text-dark: #2C3A36;
            --text-muted: #6B7D79;
            --text-footer: #D5DCD9;
            --border-line: #E5E3DF;
            --radius-card: 8px;
            --radius-btn: 6px;
            --shadow-card: 0 2px 8px rgba(26, 46, 42, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(26, 46, 42, 0.12);
            --spacing-section: 72px;
            --spacing-card: 28px;
            --transition-base: 0.3s ease;
            --transition-fast: 0.25s ease;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--bg-warm);
            letter-spacing: 0.01em;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
        }

        a:hover,
        a:focus {
            color: var(--accent);
            text-decoration: underline;
            text-decoration-thickness: 2px;
            text-decoration-color: var(--accent);
            outline: none;
        }

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        button {
            font-family: var(--font-sans);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 48px;
            padding-right: 48px;
        }

        @media (max-width: 1024px) {
            .container-custom {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

        @media (max-width: 640px) {
            .container-custom {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--bg-warm);
            border-bottom: 1px solid var(--border-line);
            min-height: var(--nav-height);
        }

        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--nav-height);
            gap: 24px;
        }

        .brand-logo {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .brand-logo .logo-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent);
            flex-shrink: 0;
        }

        .brand-logo:hover,
        .brand-logo:focus {
            color: var(--primary);
            text-decoration: none;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: nowrap;
        }

        .main-nav a {
            font-size: 16px;
            font-weight: 400;
            color: var(--text-dark);
            white-space: nowrap;
            position: relative;
            padding: 8px 0;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .main-nav a:hover,
        .main-nav a:focus {
            color: var(--accent);
            text-decoration: none;
        }

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

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background-color: var(--accent);
            border-radius: 3px 3px 0 0;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--primary);
            padding: 8px;
            line-height: 1;
        }

        .nav-toggle:hover {
            color: var(--accent);
        }

        @media (max-width: 1024px) {
            .main-nav {
                gap: 20px;
            }
            .main-nav a {
                font-size: 14px;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background-color: var(--bg-warm);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                border-bottom: 1px solid var(--border-line);
                box-shadow: 0 8px 24px rgba(26, 46, 42, 0.08);
                padding: 12px 20px 20px;
                max-height: calc(100vh - var(--nav-height));
                overflow-y: auto;
            }
            .main-nav.is-open {
                display: flex;
            }
            .main-nav a {
                display: block;
                width: 100%;
                padding: 12px 0;
                border-bottom: 1px solid var(--border-line);
                font-size: 16px;
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .main-nav a.active::after {
                display: none;
            }
            .main-nav a.active {
                background-color: #C9A96E33;
                padding-left: 12px;
                border-radius: 4px;
            }
            .site-header .container-custom {
                padding-top: 0;
                padding-bottom: 0;
            }
        }

        @media (max-width: 640px) {
            .brand-logo {
                font-size: 18px;
            }
            .container-custom {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        /* Hero Section */
        .hero-section {
            background-color: var(--bg-warm);
            min-height: 70vh;
            display: flex;
            align-items: center;
            padding: 60px 0 72px;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(201, 169, 110, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1.6fr 1fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-value-points {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .hero-value-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            color: var(--text-dark);
            line-height: 1.5;
        }

        .hero-value-item i {
            color: var(--accent);
            font-size: 18px;
            margin-top: 3px;
            width: 20px;
            text-align: center;
            flex-shrink: 0;
        }

        .hero-center {
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .hero-badge {
            display: inline-block;
            background-color: #C9A96E33;
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 4px 16px;
            border-radius: 20px;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

        .hero-title {
            font-size: 56px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 20px;
        }

        .hero-subtitle {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 480px;
            margin-bottom: 32px;
        }

        .hero-stage {
            width: 100%;
            max-width: 560px;
            margin-bottom: 32px;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 32px rgba(26, 46, 42, 0.10);
            border: 1px solid var(--border-line);
            background-color: #fff;
        }

        .hero-stage img {
            width: 100%;
            height: auto;
            border-radius: 0;
            display: block;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            font-size: 16px;
            font-weight: 500;
            border: none;
            text-decoration: none;
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
            line-height: 1.5;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #fff;
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--primary-dark);
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(26, 46, 42, 0.2);
        }

        .btn-accent {
            background-color: var(--accent);
            color: var(--primary);
            font-weight: 600;
        }

        .btn-accent:hover,
        .btn-accent:focus {
            background-color: #B8925A;
            color: var(--primary);
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(201, 169, 110, 0.3);
        }

        .btn-outline {
            background-color: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
        }

        .btn-outline:hover,
        .btn-outline:focus {
            background-color: var(--primary);
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
        }

        .hero-right-btns {
            display: flex;
            flex-direction: column;
            gap: 16px;
            align-items: flex-start;
        }

        .hero-right-btns p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 4px;
        }

        .hero-right-btns .btn {
            width: 100%;
            justify-content: center;
        }

        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-value-points {
                order: 2;
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: center;
                gap: 16px;
            }
            .hero-value-item {
                flex: 1 1 160px;
            }
            .hero-center {
                order: 1;
            }
            .hero-right-btns {
                order: 3;
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: center;
            }
            .hero-right-btns .btn {
                width: auto;
            }
            .hero-title {
                font-size: 40px;
            }
            .hero-section {
                min-height: auto;
                padding: 48px 0 56px;
            }
        }

        @media (max-width: 640px) {
            .hero-title {
                font-size: 32px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-value-points {
                flex-direction: column;
                gap: 12px;
            }
            .hero-right-btns {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-right-btns .btn {
                width: 100%;
            }
            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
        }

        /* Metrics Dashboard */
        .metrics-section {
            background-color: var(--bg-green-gray);
            padding: 64px 0;
            border-top: 1px solid var(--border-line);
            border-bottom: 1px solid var(--border-line);
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 24px;
        }

        .metric-card {
            background-color: var(--bg-warm);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }

        .metric-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--accent);
        }

        .metric-number {
            font-size: 48px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .metric-label {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-muted);
            letter-spacing: 0.01em;
        }

        .metric-card .metric-trend {
            display: inline-block;
            font-size: 12px;
            color: var(--accent);
            margin-top: 6px;
            font-weight: 500;
        }

        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 640px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .metric-number {
                font-size: 28px;
            }
            .metric-card {
                padding: 20px 12px;
            }
        }

        /* Category Entry */
        .category-entry-section {
            padding: var(--spacing-section) 0;
            background-color: var(--bg-warm);
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .category-card {
            background-color: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

        .category-card .cat-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: #C9A96E33;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 20px;
            margin-bottom: 8px;
        }

        .category-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: -0.02em;
            margin: 0;
        }

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

        .category-card .cat-link {
            font-size: 14px;
            color: var(--accent);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            text-decoration: none;
        }

        .category-card .cat-link:hover {
            color: var(--primary);
            text-decoration: underline;
            text-decoration-color: var(--accent);
            text-decoration-thickness: 2px;
        }

        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .category-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* Service Matrix */
        .services-section {
            padding: var(--spacing-section) 0;
            background-color: var(--bg-green-gray);
            border-top: 1px solid var(--border-line);
            border-bottom: 1px solid var(--border-line);
        }

        .services-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 28px;
            margin-top: 40px;
        }

        .service-card {
            background-color: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .service-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--accent);
        }

        .service-card .service-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: -0.02em;
            line-height: 1;
        }

        .service-card h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: -0.02em;
            margin: 0;
        }

        .service-card p {
            font-size: 15px;
            color: var(--text-dark);
            line-height: 1.8;
            margin: 0;
            flex: 1;
        }

        .service-card img {
            width: 100%;
            border-radius: var(--radius-card);
            margin-top: 8px;
        }

        .service-card .service-link {
            font-size: 14px;
            color: var(--accent);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            text-decoration: none;
        }

        .service-card .service-link:hover {
            color: var(--primary);
            text-decoration: underline;
            text-decoration-color: var(--accent);
            text-decoration-thickness: 2px;
        }

        .service-sub-cards {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .service-sub-card {
            background-color: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 12px;
            flex: 1;
        }

        .service-sub-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--accent);
        }

        .service-sub-card h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--primary);
            margin: 0;
        }

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

        @media (max-width: 1024px) {
            .services-grid {
                grid-template-columns: 1fr;
            }
            .service-sub-cards {
                flex-direction: row;
            }
        }

        @media (max-width: 640px) {
            .service-sub-cards {
                flex-direction: column;
            }
            .service-card,
            .service-sub-card {
                padding: 20px;
            }
        }

        /* Comparison Section */
        .comparison-section {
            padding: var(--spacing-section) 0;
            background-color: var(--bg-warm);
        }

        .comparison-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
            margin-top: 40px;
        }

        .comparison-table-wrap {
            background-color: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
        }

        .comparison-table thead th {
            background-color: var(--primary);
            color: #fff;
            font-weight: 500;
            padding: 14px 16px;
            text-align: left;
            font-size: 14px;
            letter-spacing: 0.01em;
        }

        .comparison-table tbody td {
            padding: 14px 16px;
            border-bottom: 1px solid var(--border-line);
            color: var(--text-dark);
            vertical-align: top;
        }

        .comparison-table tbody tr:last-child td {
            border-bottom: none;
        }

        .comparison-table tbody tr:hover td {
            background-color: var(--bg-green-gray);
        }

        .comparison-table .highlight-col {
            background-color: #C9A96E22;
            font-weight: 500;
        }

        .comparison-insight {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .comparison-insight h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--primary);
            margin: 0;
        }

        .comparison-insight p {
            font-size: 15px;
            color: var(--text-dark);
            line-height: 1.8;
            margin: 0;
        }

        .comparison-chart {
            background-color: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }

        .chart-bar-item {
            margin-bottom: 16px;
        }

        .chart-bar-item:last-child {
            margin-bottom: 0;
        }

        .chart-bar-label {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 6px;
        }

        .chart-bar-track {
            height: 8px;
            background-color: var(--bg-green-gray);
            border-radius: 4px;
            overflow: hidden;
        }

        .chart-bar-fill {
            height: 100%;
            border-radius: 4px;
            background-color: var(--primary);
            transition: width 1s ease;
        }

        .chart-bar-fill.accent-fill {
            background-color: var(--accent);
        }

        @media (max-width: 1024px) {
            .comparison-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        /* Brand Intro */
        .brand-intro-section {
            padding: 64px 0;
            background-color: var(--bg-green-gray);
            border-top: 1px solid var(--border-line);
            border-bottom: 1px solid var(--border-line);
        }

        .brand-intro-text {
            font-size: 16px;
            line-height: 2;
            color: var(--text-dark);
            max-width: 900px;
            margin: 0 auto;
            text-align: justify;
        }

        .brand-intro-text::first-letter {
            font-size: 48px;
            font-weight: 700;
            color: var(--accent);
            float: left;
            margin-right: 8px;
            line-height: 1;
            margin-top: 4px;
        }

        @media (max-width: 640px) {
            .brand-intro-text {
                font-size: 15px;
                line-height: 1.9;
            }
            .brand-intro-text::first-letter {
                font-size: 36px;
            }
        }

        /* Focus Topics */
        .topics-section {
            padding: var(--spacing-section) 0;
            background-color: var(--bg-warm);
        }

        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .topic-card {
            background-color: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

        .topic-card .topic-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--accent);
            background-color: #C9A96E22;
            padding: 2px 12px;
            border-radius: 12px;
            align-self: flex-start;
        }

        .topic-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin: 0;
        }

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

        @media (max-width: 1024px) {
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .topics-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* Pricing Comparison */
        .pricing-section {
            padding: var(--spacing-section) 0;
            background-color: var(--bg-green-gray);
            border-top: 1px solid var(--border-line);
            border-bottom: 1px solid var(--border-line);
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .pricing-card {
            background-color: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .pricing-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--accent);
        }

        .pricing-card.featured {
            border: 2px solid var(--accent);
            position: relative;
        }

        .pricing-card.featured::before {
            content: '推荐方案';
            position: absolute;
            top: -12px;
            left: 24px;
            background-color: var(--accent);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 12px;
        }

        .pricing-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin: 0;
        }

        .pricing-card .price {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
        }

        .pricing-card .price span {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-muted);
        }

        .pricing-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .pricing-card ul li {
            font-size: 14px;
            color: var(--text-dark);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.6;
        }

        .pricing-card ul li i {
            color: var(--accent);
            font-size: 14px;
            margin-top: 3px;
        }

        .pricing-card .btn {
            width: 100%;
            justify-content: center;
        }

        @media (max-width: 1024px) {
            .pricing-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .pricing-card.featured {
                grid-column: span 2;
            }
        }

        @media (max-width: 640px) {
            .pricing-grid {
                grid-template-columns: 1fr;
            }
            .pricing-card.featured {
                grid-column: span 1;
            }
        }

        /* Testimonial Wall */
        .testimonial-section {
            padding: var(--spacing-section) 0;
            background-color: var(--bg-warm);
        }

        .testimonial-summary {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 32px;
        }

        .testimonial-score {
            font-size: 48px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
        }

        .testimonial-summary p {
            font-size: 15px;
            color: var(--text-muted);
            margin: 0;
        }

        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .testimonial-card {
            background-color: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--accent);
        }

        .testimonial-card .stars {
            color: var(--accent);
            font-size: 16px;
            letter-spacing: 2px;
        }

        .testimonial-card blockquote {
            font-size: 15px;
            color: var(--text-dark);
            line-height: 1.8;
            margin: 0;
            font-style: italic;
        }

        .testimonial-card .author {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }

        @media (max-width: 1024px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
        }

        /* News Center */
        .news-section {
            padding: var(--spacing-section) 0;
            background-color: var(--bg-green-gray);
            border-top: 1px solid var(--border-line);
            border-bottom: 1px solid var(--border-line);
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1.5fr 0.7fr;
            gap: 40px;
            margin-top: 40px;
        }

        .news-list-wrap {
            display: flex;
            flex-direction: column;
        }

        .news-item {
            display: flex;
            flex-direction: column;
            gap: 8px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-line);
        }

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

        .news-item .news-date {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .news-item h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin: 0;
            letter-spacing: -0.01em;
        }

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

        .news-item .news-readmore {
            font-size: 14px;
            color: var(--accent);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            text-decoration: none;
            align-self: flex-start;
            margin-top: 4px;
        }

        .news-item .news-readmore:hover {
            color: var(--primary);
            text-decoration: underline;
            text-decoration-color: var(--accent);
            text-decoration-thickness: 2px;
        }

        .news-sidebar {
            background-color: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            align-self: start;
            position: sticky;
            top: 100px;
        }

        .news-sidebar h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .news-sidebar .sidebar-link {
            display: block;
            padding: 10px 0;
            font-size: 14px;
            color: var(--text-dark);
            border-bottom: 1px solid var(--border-line);
            text-decoration: none;
        }

        .news-sidebar .sidebar-link:last-child {
            border-bottom: none;
        }

        .news-sidebar .sidebar-link:hover {
            color: var(--accent);
            text-decoration: underline;
            text-decoration-color: var(--accent);
            text-decoration-thickness: 2px;
        }

        @media (max-width: 1024px) {
            .news-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .news-sidebar {
                position: static;
            }
        }

        /* FAQ */
        .faq-section {
            padding: var(--spacing-section) 0;
            background-color: var(--bg-warm);
        }

        .faq-list {
            margin-top: 40px;
        }

        .faq-item {
            background-color: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            margin-bottom: 16px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            overflow: hidden;
        }

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

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 18px;
            font-weight: 500;
            color: var(--primary);
            user-select: none;
            gap: 16px;
        }

        .faq-question .faq-icon {
            font-size: 20px;
            color: var(--accent);
            flex-shrink: 0;
            transition: transform var(--transition-fast);
        }

        .faq-item.is-open .faq-question .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            display: none;
            padding: 0 24px 18px;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
        }

        .faq-item.is-open .faq-answer {
            display: block;
        }

        @media (max-width: 640px) {
            .faq-question {
                font-size: 16px;
                padding: 16px 20px;
            }
            .faq-answer {
                padding: 0 20px 16px;
                font-size: 15px;
            }
        }

        /* Form Section */
        .form-section {
            padding: var(--spacing-section) 0;
            background-color: var(--bg-green-gray);
            border-top: 1px solid var(--border-line);
            border-bottom: 1px solid var(--border-line);
        }

        .form-layout {
            display: grid;
            grid-template-columns: 1fr 0.8fr;
            gap: 40px;
            align-items: start;
            margin-top: 40px;
        }

        .form-card {
            background-color: var(--bg-green-gray);
            border-radius: var(--radius-card);
            padding: 40px;
            border: 1px solid var(--border-line);
        }

        .form-card .form-field {
            margin-bottom: 20px;
        }

        .form-card label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .form-card input,
        .form-card textarea {
            width: 100%;
            border: 1px solid var(--border-line);
            border-radius: 4px;
            background-color: #fff;
            padding: 12px 16px;
            font-size: 15px;
            font-family: var(--font-sans);
            color: var(--text-dark);
            transition: all var(--transition-fast);
            line-height: 1.5;
        }

        .form-card input {
            height: 48px;
        }

        .form-card textarea {
            resize: vertical;
            min-height: 120px;
        }

        .form-card input:focus,
        .form-card textarea:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.25);
        }

        .form-card .btn {
            width: 100%;
            justify-content: center;
            margin-top: 8px;
        }

        .form-side {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .form-side h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            margin: 0;
        }

        .form-side p {
            font-size: 15px;
            color: var(--text-dark);
            line-height: 1.8;
            margin: 0;
        }

        .form-side .form-note {
            font-size: 13px;
            color: var(--text-muted);
        }

        @media (max-width: 1024px) {
            .form-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 640px) {
            .form-card {
                padding: 24px 20px;
            }
        }

        /* Download Guide */
        .download-section {
            padding: 64px 0;
            background-color: var(--bg-warm);
        }

        .download-layout {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 24px;
            margin-top: 32px;
        }

        .download-layout h3 {
            font-size: 28px;
            font-weight: 600;
            color: var(--primary);
            margin: 0;
        }

        .download-layout p {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0;
            line-height: 1.8;
        }

        .download-btns {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: center;
        }

        @media (max-width: 640px) {
            .download-layout h3 {
                font-size: 22px;
            }
        }

        /* Footer */
        .site-footer {
            background-color: var(--primary);
            color: var(--text-footer);
            padding: 56px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand h3 .logo-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-footer);
            margin: 0;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-footer);
            padding: 6px 0;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent);
            text-decoration: underline;
            text-decoration-color: var(--accent);
            text-decoration-thickness: 2px;
        }

        .footer-col p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-footer);
            margin: 0 0 8px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(213, 220, 217, 0.2);
            margin-top: 40px;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 16px;
            font-size: 13px;
            color: var(--text-footer);
        }

        .footer-bottom a {
            color: var(--accent);
            text-decoration: none;
        }

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

        .footer-legal {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
        }

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* Section Headings */
        .section-heading {
            margin-bottom: 16px;
        }

        .section-heading .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent);
            background-color: #C9A96E22;
            padding: 4px 14px;
            border-radius: 16px;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .section-heading h2 {
            font-size: 32px;
            font-weight: 600;
            letter-spacing: -0.02em;
            color: var(--primary);
            margin: 0 0 10px;
            line-height: 1.3;
        }

        .section-heading p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
            max-width: 600px;
        }

        @media (max-width: 1024px) {
            .section-heading h2 {
                font-size: 28px;
            }
        }

        @media (max-width: 640px) {
            .section-heading h2 {
                font-size: 24px;
            }
            .section-heading p {
                font-size: 14px;
            }
        }

        /* Scroll animation */
        .fade-up-section {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

        .fade-up-section.is-visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (prefers-reduced-motion: reduce) {
            .fade-up-section {
                opacity: 1;
                transform: none;
                transition: none;
            }
            html {
                scroll-behavior: auto;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1A2E2A;
            --primary-dark: #0F1D19;
            --accent: #C9A96E;
            --accent-light: #E8D9BE;
            --bg-warm: #FAF8F5;
            --bg-green-gray: #F0F2EE;
            --text-dark: #2C3A36;
            --text-muted: #6B7D79;
            --text-footer: #D5DCD9;
            --border-line: #E5E3DF;
            --radius-card: 8px;
            --radius-btn: 6px;
            --shadow-card: 0 2px 8px rgba(26, 46, 42, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(26, 46, 42, 0.12);
            --spacing-section: 72px;
            --spacing-card: 28px;
            --transition-base: 0.3s ease;
            --transition-fast: 0.25s ease;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--bg-warm);
            letter-spacing: 0.01em;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
        }

        a:hover,
        a:focus {
            color: var(--accent);
            text-decoration: underline;
            text-decoration-thickness: 2px;
            text-decoration-color: var(--accent);
            outline: none;
        }

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        button {
            font-family: var(--font-sans);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 48px;
            padding-right: 48px;
        }

        @media (max-width: 1024px) {
            .container-custom {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

        @media (max-width: 640px) {
            .container-custom {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--bg-warm);
            border-bottom: 1px solid var(--border-line);
            min-height: var(--nav-height);
        }

        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--nav-height);
            gap: 24px;
        }

        .brand-logo {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .brand-logo .logo-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent);
            flex-shrink: 0;
        }

        .brand-logo:hover,
        .brand-logo:focus {
            color: var(--primary);
            text-decoration: none;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: nowrap;
        }

        .main-nav a {
            font-size: 16px;
            font-weight: 400;
            color: var(--text-dark);
            white-space: nowrap;
            position: relative;
            padding: 8px 0;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .main-nav a:hover,
        .main-nav a:focus {
            color: var(--accent);
            text-decoration: none;
        }

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

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background-color: var(--accent);
            border-radius: 3px 3px 0 0;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--primary);
            padding: 8px;
            line-height: 1;
        }

        .nav-toggle:hover {
            color: var(--accent);
        }

        @media (max-width: 1024px) {
            .main-nav {
                gap: 20px;
            }
            .main-nav a {
                font-size: 14px;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background-color: var(--bg-warm);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                border-bottom: 1px solid var(--border-line);
                box-shadow: 0 8px 24px rgba(26, 46, 42, 0.08);
                padding: 12px 20px 20px;
                max-height: calc(100vh - var(--nav-height));
                overflow-y: auto;
            }
            .main-nav.is-open {
                display: flex;
            }
            .main-nav a {
                display: block;
                width: 100%;
                padding: 12px 0;
                border-bottom: 1px solid var(--border-line);
                font-size: 16px;
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
        }

        .page-hero {
            background-color: var(--primary);
            color: #fff;
            padding: 56px 0 64px;
            position: relative;
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 40%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.3;
            pointer-events: none;
        }

        .page-hero .container-custom {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .page-hero h1 {
            font-size: 48px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.25;
        }

        .page-hero .hero-subtitle {
            font-size: 18px;
            font-weight: 400;
            color: var(--accent-light);
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            font-size: 16px;
            font-weight: 500;
            font-family: var(--font-sans);
            border: none;
            letter-spacing: 0.01em;
            text-decoration: none;
            transition: all var(--transition-fast);
            line-height: 1.5;
        }

        .btn-primary {
            background-color: var(--primary-dark);
            color: #fff;
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background-color: #0a1412;
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
        }

        .btn-accent {
            background-color: var(--accent);
            color: var(--primary-dark);
            font-weight: 600;
        }

        .btn-accent:hover,
        .btn-accent:focus {
            background-color: #b8925a;
            color: var(--primary-dark);
            text-decoration: none;
            transform: translateY(-2px);
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #fff;
        }

        .btn-outline-light:hover,
        .btn-outline-light:focus {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            text-decoration: none;
        }

        .hero-data-panel {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-card);
            padding: 32px;
            backdrop-filter: blur(4px);
        }

        .hero-data-panel .data-panel-title {
            font-size: 14px;
            font-weight: 500;
            color: var(--accent-light);
            letter-spacing: 0.06em;
            margin-bottom: 20px;
            text-transform: uppercase;
        }

        .data-panel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .data-panel-row:last-child {
            border-bottom: none;
        }

        .data-panel-row .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .data-panel-row .value {
            font-size: 20px;
            font-weight: 700;
            color: var(--accent);
        }

        .section {
            padding: var(--spacing-section) 0;
        }

        .section-alt {
            background-color: var(--bg-green-gray);
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 36px;
            font-weight: 600;
            letter-spacing: -0.02em;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 16px;
            font-weight: 400;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 720px;
        }

        .service-deep-card {
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 40px;
            margin-bottom: 32px;
        }

        .service-deep-card .deep-card-header {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            margin-bottom: 24px;
        }

        .service-deep-card .deep-card-number {
            font-size: 48px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
            flex-shrink: 0;
            min-width: 72px;
        }

        .service-deep-card .deep-card-title {
            font-size: 24px;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.35;
            margin-bottom: 8px;
        }

        .service-deep-card .deep-card-badge {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            background-color: var(--bg-green-gray);
            border-radius: 20px;
            padding: 4px 14px;
            margin-bottom: 12px;
        }

        .service-deep-card .deep-card-body {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-dark);
            margin-bottom: 20px;
        }

        .service-deep-card .deep-card-body p {
            margin-bottom: 16px;
        }

        .deep-card-feature-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
            margin: 20px 0;
        }

        .deep-card-feature-list .feature-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-dark);
        }

        .deep-card-feature-list .feature-item i {
            color: var(--accent);
            margin-top: 5px;
            flex-shrink: 0;
        }

        .sub-service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .sub-service-card {
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 28px;
            transition: all var(--transition-base);
        }

        .sub-service-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--accent);
            transform: translateY(-4px);
        }

        .sub-service-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--bg-green-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent);
            margin-bottom: 16px;
        }

        .sub-service-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .sub-service-card p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .sub-service-card .card-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .sub-service-card .card-link:hover {
            text-decoration: underline;
            text-decoration-thickness: 2px;
        }

        .metrics-dashboard {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
        }

        .metric-card {
            background: var(--bg-green-gray);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            text-align: center;
            transition: all var(--transition-base);
        }

        .metric-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-card);
        }

        .metric-card .metric-number {
            font-size: 52px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }

        .metric-card .metric-label {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-muted);
        }

        .process-flow {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 0;
            counter-reset: step;
        }

        .process-step {
            padding: 32px 24px;
            border-left: 1px solid var(--border-line);
            position: relative;
            counter-increment: step;
        }

        .process-step:first-child {
            border-left: none;
        }

        .process-step::before {
            content: counter(step, decimal-leading-zero);
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.06em;
            display: block;
            margin-bottom: 12px;
        }

        .process-step h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

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

        .comparison-panel {
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 40px;
            margin-top: 32px;
        }

        .comparison-panel .comparison-title {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
        }

        .comparison-table thead th {
            background-color: var(--primary);
            color: #fff;
            padding: 14px 16px;
            font-size: 15px;
            font-weight: 500;
            text-align: left;
            border-bottom: 3px solid var(--accent);
        }

        .comparison-table tbody td {
            padding: 14px 16px;
            font-size: 15px;
            line-height: 1.6;
            border-bottom: 1px solid var(--border-line);
            color: var(--text-dark);
        }

        .comparison-table tbody tr:last-child td {
            border-bottom: none;
        }

        .comparison-table tbody tr:hover td {
            background-color: var(--bg-warm);
        }

        .faq-accordion {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-line);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: var(--accent);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 18px;
            font-weight: 500;
            color: var(--text-dark);
            font-family: var(--font-sans);
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-question .faq-icon {
            font-size: 20px;
            color: var(--accent);
            font-weight: 400;
            flex-shrink: 0;
            transition: transform var(--transition-fast);
        }

        .faq-item.is-open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 24px;
        }

        .faq-item.is-open .faq-answer {
            max-height: 600px;
            padding: 0 24px 24px;
        }

        .faq-answer p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            margin-bottom: 0;
        }

        .cta-form-section {
            background: var(--bg-green-gray);
            padding: var(--spacing-section) 0;
        }

        .cta-form-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-line);
            box-shadow: var(--shadow-card);
            padding: 40px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .cta-form-card .form-info h2 {
            font-size: 28px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .cta-form-card .form-info p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-muted);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-line);
            border-radius: 4px;
            font-size: 15px;
            font-family: var(--font-sans);
            background: #fff;
            color: var(--text-dark);
            transition: all var(--transition-fast);
            min-height: 48px;
            line-height: 1.5;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--accent);
            outline: none;
            box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.25);
        }

        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }

        .btn-submit {
            width: 100%;
            background-color: var(--primary);
            color: #fff;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            font-size: 16px;
            font-weight: 500;
            border: none;
            letter-spacing: 0.01em;
            transition: all var(--transition-fast);
            font-family: var(--font-sans);
        }

        .btn-submit:hover,
        .btn-submit:focus {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
            outline: none;
        }

        .site-footer {
            background-color: var(--primary);
            color: var(--text-footer);
            padding: 56px 0 32px;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .site-footer .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .site-footer .footer-brand .logo-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent);
        }

        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-footer);
            margin-bottom: 0;
        }

        .site-footer .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .site-footer .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-footer);
            margin-bottom: 10px;
            transition: color var(--transition-fast);
        }

        .site-footer .footer-col a:hover,
        .site-footer .footer-col a:focus {
            color: var(--accent);
            text-decoration: none;
        }

        .site-footer .footer-col p {
            font-size: 14px;
            color: var(--text-footer);
            margin-bottom: 10px;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

        .site-footer .footer-bottom span {
            font-size: 13px;
            color: var(--text-footer);
        }

        .site-footer .footer-bottom .footer-legal {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .site-footer .footer-bottom .footer-legal a {
            font-size: 13px;
            color: var(--accent);
        }

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

        .cover-image-block {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-line);
            box-shadow: var(--shadow-card);
        }

        .cover-image-block img {
            width: 100%;
            height: 260px;
            object-fit: cover;
            border-radius: var(--radius-card);
        }

        .fade-up {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

        .fade-up.is-visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (max-width: 1024px) {
            .page-hero .container-custom {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .page-hero h1 {
                font-size: 40px;
            }
            .cta-form-card {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .process-flow {
                grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            }
            .process-step {
                border-left: none;
                border-top: 1px solid var(--border-line);
                padding: 24px 16px;
            }
            .process-step:first-child {
                border-top: none;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 48px;
            }
            .section-title {
                font-size: 28px;
            }
            .service-deep-card {
                padding: 24px;
            }
            .service-deep-card .deep-card-number {
                font-size: 36px;
                min-width: 52px;
            }
            .metric-card .metric-number {
                font-size: 32px;
            }
            .comparison-panel {
                padding: 24px;
                overflow-x: auto;
            }
            .comparison-table {
                min-width: 600px;
            }
            .cta-form-card {
                padding: 24px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .page-hero {
                min-height: 360px;
                padding: 40px 0;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .page-hero .hero-subtitle {
                font-size: 16px;
            }
        }

        @media (max-width: 520px) {
            .section-title {
                font-size: 24px;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .hero-cta-group .btn {
                width: 100%;
            }
            .btn {
                padding: 10px 20px;
                font-size: 15px;
            }
            .sub-service-grid {
                grid-template-columns: 1fr;
            }
            .metrics-dashboard {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .metric-card {
                padding: 20px 12px;
            }
            .metric-card .metric-number {
                font-size: 28px;
            }
            .process-flow {
                grid-template-columns: 1fr;
            }
            .faq-question {
                font-size: 16px;
                padding: 16px 18px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1A2E2A;
            --primary-dark: #0F1D19;
            --accent: #C9A96E;
            --accent-light: #E8D9BE;
            --bg-warm: #FAF8F5;
            --bg-green-gray: #F0F2EE;
            --text-dark: #2C3A36;
            --text-muted: #6B7D79;
            --text-footer: #D5DCD9;
            --border-line: #E5E3DF;
            --radius-card: 8px;
            --radius-btn: 6px;
            --shadow-card: 0 2px 8px rgba(26, 46, 42, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(26, 46, 42, 0.12);
            --spacing-section: 72px;
            --spacing-card: 28px;
            --transition-base: 0.3s ease;
            --transition-fast: 0.25s ease;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--bg-warm);
            letter-spacing: 0.01em;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
        }
        a:hover,
        a:focus {
            color: var(--accent);
            text-decoration: underline;
            text-decoration-thickness: 2px;
            text-decoration-color: var(--accent);
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }
        button {
            font-family: var(--font-sans);
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 48px;
            padding-right: 48px;
        }
        @media (max-width: 1024px) {
            .container-custom {
                padding-left: 32px;
                padding-right: 32px;
            }
        }
        @media (max-width: 640px) {
            .container-custom {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--bg-warm);
            border-bottom: 1px solid var(--border-line);
            min-height: var(--nav-height);
        }
        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--nav-height);
            gap: 24px;
        }
        .brand-logo {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .brand-logo .logo-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent);
            flex-shrink: 0;
        }
        .brand-logo:hover,
        .brand-logo:focus {
            color: var(--primary);
            text-decoration: none;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: nowrap;
        }
        .main-nav a {
            font-size: 16px;
            font-weight: 400;
            color: var(--text-dark);
            white-space: nowrap;
            position: relative;
            padding: 8px 0;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .main-nav a:hover,
        .main-nav a:focus {
            color: var(--accent);
            text-decoration: none;
        }
        .main-nav a.active {
            color: var(--accent);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background-color: var(--accent);
            border-radius: 3px 3px 0 0;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--primary);
            padding: 8px;
            line-height: 1;
        }
        .nav-toggle:hover {
            color: var(--accent);
        }
        @media (max-width: 1024px) {
            .main-nav {
                gap: 20px;
            }
            .main-nav a {
                font-size: 14px;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background-color: var(--bg-warm);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                border-bottom: 1px solid var(--border-line);
                box-shadow: 0 8px 24px rgba(26, 46, 42, 0.08);
                padding: 12px 20px 20px;
                max-height: calc(100vh - var(--nav-height));
                overflow-y: auto;
            }
            .main-nav.is-open {
                display: flex;
            }
            .main-nav a {
                display: block;
                width: 100%;
                padding: 12px 0;
                border-bottom: 1px solid var(--border-line);
                font-size: 16px;
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .main-nav a.active::after {
                display: none;
            }
            .main-nav a.active {
                background-color: rgba(201, 169, 110, 0.1);
                padding-left: 8px;
            }
        }

        /* Page Title Section */
        .page-title-section {
            background-color: var(--bg-green-gray);
            padding: 64px 0 48px;
            border-bottom: 1px solid var(--border-line);
            position: relative;
            overflow: hidden;
        }
        .page-title-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
        }
        .page-title-section h1 {
            font-size: 48px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--primary);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .page-title-section .page-subtitle {
            font-size: 18px;
            font-weight: 400;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.8;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .breadcrumb-nav a {
            color: var(--text-muted);
        }
        .breadcrumb-nav a:hover {
            color: var(--accent);
        }
        .breadcrumb-nav .separator {
            color: var(--border-line);
        }
        @media (max-width: 768px) {
            .page-title-section {
                padding: 40px 0 32px;
            }
            .page-title-section h1 {
                font-size: 32px;
            }
            .page-title-section .page-subtitle {
                font-size: 16px;
            }
        }

        /* Section Base */
        .section-block {
            padding: var(--spacing-section) 0;
        }
        .section-block.bg-alternate {
            background-color: var(--bg-green-gray);
        }
        .section-heading {
            margin-bottom: 40px;
        }
        .section-heading h2 {
            font-size: 32px;
            font-weight: 600;
            letter-spacing: -0.02em;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .section-heading p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.8;
        }
        @media (max-width: 768px) {
            .section-block {
                padding: 48px 0;
            }
            .section-heading h2 {
                font-size: 26px;
            }
        }
        @media (max-width: 640px) {
            .section-heading h2 {
                font-size: 22px;
            }
        }

        /* Metrics Dashboard */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .metric-card {
            background: #FFFFFF;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: left;
            position: relative;
            transition: all var(--transition-base);
        }
        .metric-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--accent);
            transform: translateY(-2px);
        }
        .metric-card .metric-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: rgba(201, 169, 110, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            color: var(--accent);
            font-size: 18px;
        }
        .metric-card .metric-value {
            font-size: 48px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--primary);
            letter-spacing: -0.02em;
            margin-bottom: 8px;
        }
        .metric-card .metric-label {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .metric-card .metric-change {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .metric-card .metric-change.up {
            background-color: rgba(26, 46, 42, 0.08);
            color: var(--primary);
        }
        .metric-card .metric-change .arrow {
            font-size: 12px;
        }
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .metric-card .metric-value {
                font-size: 32px;
            }
        }

        /* Chart Section */
        .chart-wrapper {
            background: #FFFFFF;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            margin-bottom: 32px;
            box-shadow: var(--shadow-card);
        }
        .chart-wrapper .chart-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 24px;
        }
        .chart-wrapper .chart-header h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            margin: 0;
        }
        .chart-wrapper .chart-legend {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .chart-wrapper .chart-legend .legend-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .chart-wrapper .chart-legend .legend-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            display: inline-block;
        }
        .chart-wrapper .chart-legend .legend-dot.dot-primary {
            background-color: var(--primary);
        }
        .chart-wrapper .chart-legend .legend-dot.dot-accent {
            background-color: var(--accent);
        }
        .bar-chart-container {
            display: flex;
            align-items: flex-end;
            gap: 12px;
            height: 260px;
            padding: 20px 0 0;
            border-bottom: 2px solid var(--border-line);
            position: relative;
        }
        .bar-chart-container::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 2px;
            background-color: var(--border-line);
        }
        .bar-group {
            display: flex;
            align-items: flex-end;
            gap: 4px;
            flex: 1;
            height: 100%;
            position: relative;
        }
        .bar-group .bar {
            flex: 1;
            max-width: 28px;
            border-radius: 4px 4px 0 0;
            transition: all var(--transition-base);
            min-height: 12px;
        }
        .bar-group .bar.bar-primary {
            background-color: var(--primary);
        }
        .bar-group .bar.bar-accent {
            background-color: var(--accent);
        }
        .bar-group:hover .bar-primary {
            background-color: var(--primary-dark);
            transform: scaleY(1.04);
            transform-origin: bottom;
        }
        .bar-group:hover .bar-accent {
            background-color: #B8925A;
            transform: scaleY(1.04);
            transform-origin: bottom;
        }
        .bar-chart-labels {
            display: flex;
            gap: 12px;
            padding-top: 12px;
        }
        .bar-chart-labels span {
            flex: 1;
            text-align: center;
            font-size: 13px;
            color: var(--text-muted);
        }
        @media (max-width: 640px) {
            .chart-wrapper {
                padding: 20px 16px;
            }
            .bar-chart-container {
                height: 180px;
                gap: 6px;
            }
            .bar-group .bar {
                max-width: 18px;
            }
        }

        /* Data Explanation */
        .data-explain-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: start;
        }
        .data-explain-text {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-dark);
        }
        .data-explain-text p {
            margin-bottom: 20px;
        }
        .data-explain-text .lead-callout {
            background-color: var(--bg-green-gray);
            border-left: 3px solid var(--accent);
            padding: 20px 24px;
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            margin-bottom: 24px;
        }
        .data-explain-text .lead-callout p {
            margin: 0;
            font-weight: 500;
            color: var(--primary);
        }
        .data-side-card {
            background: #FFFFFF;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
        }
        .data-side-card h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .data-side-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .data-side-card ul li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-line);
            font-size: 15px;
            color: var(--text-dark);
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.7;
        }
        .data-side-card ul li:last-child {
            border-bottom: none;
        }
        .data-side-card ul li .list-icon {
            color: var(--accent);
            flex-shrink: 0;
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .data-explain-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* Service Matrix */
        .service-matrix-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 28px;
        }
        .service-card-wide {
            background: #FFFFFF;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }
        .service-card-wide:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--accent);
        }
        .service-card-wide .service-number {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.08em;
            margin-bottom: 12px;
            display: block;
        }
        .service-card-wide h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .service-card-wide p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-dark);
        }
        .service-card-wide .service-link {
            display: inline-block;
            margin-top: 16px;
            font-weight: 500;
            color: var(--accent);
            font-size: 15px;
            position: relative;
            padding-right: 24px;
        }
        .service-card-wide .service-link:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .service-card-wide .service-link::after {
            content: '→';
            position: absolute;
            right: 0;
            top: 0;
            transition: transform var(--transition-fast);
        }
        .service-card-wide .service-link:hover::after {
            transform: translateX(4px);
        }
        .service-card-tall {
            background: var(--primary);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            color: var(--text-footer);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .service-card-tall h3 {
            font-size: 22px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
        }
        .service-card-tall p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-footer);
            margin-bottom: 20px;
        }
        .service-card-tall .btn-accent {
            align-self: flex-start;
        }
        @media (max-width: 768px) {
            .service-matrix-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Comparison Section */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .comparison-table-card {
            background: #FFFFFF;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
        }
        .comparison-table-card h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 20px;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
        }
        .comparison-table thead th {
            background-color: var(--primary);
            color: #FFFFFF;
            font-weight: 500;
            padding: 12px 16px;
            text-align: left;
            font-size: 14px;
            letter-spacing: 0.02em;
        }
        .comparison-table tbody td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border-line);
            color: var(--text-dark);
            font-size: 14px;
        }
        .comparison-table tbody tr:hover td {
            background-color: var(--bg-green-gray);
        }
        .comparison-table tbody tr:last-child td {
            border-bottom: none;
        }
        .comparison-insight {
            background: var(--bg-green-gray);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .comparison-insight h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .comparison-insight p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-dark);
        }
        .comparison-insight .insight-highlight {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            padding: 4px 12px;
            border-radius: 4px;
            font-weight: 600;
            font-size: 14px;
            margin-bottom: 16px;
            align-self: flex-start;
        }
        @media (max-width: 768px) {
            .comparison-grid {
                grid-template-columns: 1fr;
            }
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
        }
        .faq-item {
            background: #FFFFFF;
            border-bottom: 1px solid var(--border-line);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border-line);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 18px;
            font-weight: 500;
            color: var(--primary);
            text-align: left;
            line-height: 1.5;
        }
        .faq-question .faq-icon {
            font-size: 20px;
            color: var(--accent);
            flex-shrink: 0;
            transition: transform var(--transition-base);
        }
        .faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            padding: 0;
        }
        .faq-answer.is-open {
            max-height: 400px;
            padding: 0 0 20px;
        }
        .faq-answer p {
            margin: 0;
        }

        /* CTA Form Section */
        .cta-form-section {
            background-color: var(--bg-green-gray);
            padding: var(--spacing-section) 0;
        }
        .cta-form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .cta-form-text h2 {
            font-size: 32px;
            font-weight: 600;
            letter-spacing: -0.02em;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .cta-form-text p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 480px;
        }
        .cta-form-card {
            background: #FFFFFF;
            border-radius: var(--radius-card);
            padding: 36px 32px;
            box-shadow: var(--shadow-card);
        }
        .cta-form-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 24px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            background: #FFFFFF;
            border: 1px solid var(--border-line);
            border-radius: 4px;
            padding: 0 16px;
            height: 48px;
            font-size: 15px;
            color: var(--text-dark);
            font-family: var(--font-sans);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .form-group textarea {
            height: 120px;
            padding: 12px 16px;
            resize: vertical;
            line-height: 1.7;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.25);
        }
        .btn-primary {
            display: inline-block;
            background-color: var(--primary);
            color: #FFFFFF;
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            border: none;
            font-size: 16px;
            font-weight: 500;
            letter-spacing: 0.02em;
            text-align: center;
            transition: all var(--transition-fast);
            width: 100%;
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
            color: #FFFFFF;
            text-decoration: none;
            box-shadow: 0 4px 12px rgba(26, 46, 42, 0.2);
        }
        .btn-accent {
            display: inline-block;
            background-color: var(--accent);
            color: var(--primary-dark);
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            border: none;
            font-size: 16px;
            font-weight: 600;
            text-align: center;
            transition: all var(--transition-fast);
        }
        .btn-accent:hover {
            background-color: #B8925A;
            transform: translateY(-2px);
            color: var(--primary-dark);
            text-decoration: none;
            box-shadow: 0 4px 12px rgba(201, 169, 110, 0.3);
        }
        .btn-secondary {
            display: inline-block;
            background: transparent;
            color: var(--primary);
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--primary);
            font-size: 16px;
            font-weight: 500;
            text-align: center;
            transition: all var(--transition-fast);
        }
        .btn-secondary:hover {
            background-color: var(--primary);
            color: #FFFFFF;
            text-decoration: none;
        }
        @media (max-width: 768px) {
            .cta-form-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .cta-form-card {
                padding: 28px 20px;
            }
        }

        /* Fade Up Animation */
        .fade-up {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }
        .fade-up.is-visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Footer */
        .site-footer {
            background-color: var(--primary);
            color: var(--text-footer);
            padding: 56px 0 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(213, 220, 217, 0.15);
        }
        .site-footer h3 {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer h3 .logo-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent);
        }
        .site-footer h4 {
            font-size: 16px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
        }
        .site-footer p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-footer);
            margin-bottom: 8px;
        }
        .site-footer a {
            display: block;
            font-size: 14px;
            color: var(--accent);
            margin-bottom: 10px;
            line-height: 1.6;
        }
        .site-footer a:hover {
            color: #FFFFFF;
            text-decoration: underline;
            text-decoration-color: var(--accent);
        }
        .footer-bottom {
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: rgba(213, 220, 217, 0.7);
        }
        .footer-bottom .footer-legal {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .footer-bottom .footer-legal a {
            display: inline;
            margin: 0;
            font-size: 14px;
        }
        @media (max-width: 1024px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 640px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* Deep Content Section */
        .deep-content-section {
            background-color: var(--bg-warm);
            padding: var(--spacing-section) 0;
        }
        .deep-content-card {
            background: #FFFFFF;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            box-shadow: var(--shadow-card);
            margin-bottom: 28px;
        }
        .deep-content-card:last-child {
            margin-bottom: 0;
        }
        .deep-content-card h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .deep-content-card p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-dark);
            margin-bottom: 16px;
        }
        .deep-content-card p:last-child {
            margin-bottom: 0;
        }
        .deep-content-card .content-tag {
            display: inline-block;
            background-color: rgba(201, 169, 110, 0.15);
            color: var(--accent);
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 12px;
        }
        .cover-image-wrapper {
            margin: 20px 0;
            border-radius: var(--radius-card);
            overflow: hidden;
        }
        .cover-image-wrapper img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

/* roulang page: category4 */
:root {
            --primary: #1A2E2A;
            --primary-dark: #0F1D19;
            --accent: #C9A96E;
            --accent-light: #E8D9BE;
            --bg-warm: #FAF8F5;
            --bg-green-gray: #F0F2EE;
            --text-dark: #2C3A36;
            --text-muted: #6B7D79;
            --text-footer: #D5DCD9;
            --border-line: #E5E3DF;
            --radius-card: 8px;
            --radius-btn: 6px;
            --shadow-card: 0 2px 8px rgba(26, 46, 42, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(26, 46, 42, 0.12);
            --spacing-section: 72px;
            --spacing-card: 28px;
            --transition-base: 0.3s ease;
            --transition-fast: 0.25s ease;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--bg-warm);
            letter-spacing: 0.01em;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
        }
        a:hover,
        a:focus {
            color: var(--accent);
            text-decoration: underline;
            text-decoration-thickness: 2px;
            text-decoration-color: var(--accent);
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }
        button {
            font-family: var(--font-sans);
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 48px;
            padding-right: 48px;
        }
        @media (max-width: 1024px) {
            .container-custom {
                padding-left: 32px;
                padding-right: 32px;
            }
        }
        @media (max-width: 640px) {
            .container-custom {
                padding-left: 20px;
                padding-right: 20px;
            }
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--bg-warm);
            border-bottom: 1px solid var(--border-line);
            min-height: var(--nav-height);
        }
        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--nav-height);
            gap: 24px;
        }
        .brand-logo {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .brand-logo .logo-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent);
            flex-shrink: 0;
        }
        .brand-logo:hover,
        .brand-logo:focus {
            color: var(--primary);
            text-decoration: none;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: nowrap;
        }
        .main-nav a {
            font-size: 16px;
            font-weight: 400;
            color: var(--text-dark);
            white-space: nowrap;
            position: relative;
            padding: 8px 0;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .main-nav a:hover,
        .main-nav a:focus {
            color: var(--accent);
            text-decoration: none;
        }
        .main-nav a.active {
            color: var(--accent);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background-color: var(--accent);
            border-radius: 3px 3px 0 0;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--primary);
            padding: 8px;
            line-height: 1;
        }
        .nav-toggle:hover {
            color: var(--accent);
        }
        @media (max-width: 1024px) {
            .main-nav {
                gap: 20px;
            }
            .main-nav a {
                font-size: 14px;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background-color: var(--bg-warm);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                border-bottom: 1px solid var(--border-line);
                box-shadow: 0 8px 24px rgba(26, 46, 42, 0.08);
                padding: 12px 20px 20px;
                max-height: calc(100vh - var(--nav-height));
                overflow-y: auto;
            }
            .main-nav.is-open {
                display: flex;
            }
            .main-nav a {
                display: block;
                width: 100%;
                padding: 12px 0;
                border-bottom: 1px solid var(--border-line);
                font-size: 16px;
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .main-nav a.active::after {
                display: none;
            }
            .main-nav a.active {
                background: var(--accent-light);
                padding-left: 12px;
                border-radius: 4px;
            }
        }
        .btn-primary {
            display: inline-block;
            background-color: var(--primary);
            color: #fff;
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            border: none;
            font-size: 16px;
            font-weight: 500;
            text-align: center;
            transition: all var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--primary-dark);
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: 0 8px 16px rgba(26,46,42,0.2);
        }
        .btn-secondary {
            display: inline-block;
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            font-size: 16px;
            font-weight: 500;
            text-align: center;
            transition: all var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
        }
        .btn-secondary:hover,
        .btn-secondary:focus {
            background-color: var(--primary);
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
        }
        .btn-accent {
            display: inline-block;
            background-color: var(--accent);
            color: var(--primary-dark);
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            border: none;
            font-size: 16px;
            font-weight: 600;
            text-align: center;
            transition: all var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
        }
        .btn-accent:hover,
        .btn-accent:focus {
            background-color: var(--accent-light);
            color: var(--primary-dark);
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: 0 8px 16px rgba(201,169,110,0.3);
        }
        .section-padding {
            padding: var(--spacing-section) 0;
        }
        .section-heading {
            font-size: 32px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }
        .section-subheading {
            font-size: 16px;
            font-weight: 400;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 720px;
        }
        .card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-line);
            box-shadow: var(--shadow-card);
            padding: var(--spacing-card);
            transition: all var(--transition-base);
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--accent);
            transform: translateY(-4px);
        }
        .page-hero {
            background: linear-gradient(135deg, var(--bg-green-gray) 0%, var(--bg-warm) 100%);
            border-bottom: 1px solid var(--border-line);
            padding: 80px 0 64px;
            position: relative;
            overflow: hidden;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(201,169,110,0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero h1 {
            font-size: 48px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--primary);
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
        }
        .page-hero .hero-sub {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 680px;
            position: relative;
            z-index: 1;
        }
        .breadcrumb-bar {
            background: var(--bg-green-gray);
            border-bottom: 1px solid var(--border-line);
            padding: 12px 0;
            font-size: 14px;
            color: var(--text-muted);
        }
        .breadcrumb-bar a {
            color: var(--text-muted);
        }
        .breadcrumb-bar a:hover {
            color: var(--accent);
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 48px;
        }
        .metric-card {
            background: var(--bg-green-gray);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-base);
        }
        .metric-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-card-hover);
        }
        .metric-number {
            font-size: 48px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .metric-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 8px;
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
        }
        .compare-table thead th {
            background: var(--primary);
            color: #fff;
            font-weight: 500;
            padding: 16px 20px;
            text-align: left;
        }
        .compare-table tbody td,
        .compare-table tbody th {
            padding: 14px 20px;
            border-bottom: 1px solid var(--border-line);
            color: var(--text-dark);
        }
        .compare-table tbody tr:hover {
            background: var(--bg-green-gray);
        }
        .compare-table .highlight-accent {
            color: var(--accent);
            font-weight: 600;
        }
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .case-card {
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .case-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--accent);
            transform: translateY(-4px);
        }
        .case-card img {
            width: 100%;
            height: 240px;
            object-fit: cover;
            border-radius: 0;
        }
        .case-card-body {
            padding: 24px 28px;
        }
        .case-card-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .case-card-body p {
            font-size: 15px;
            color: var(--text-dark);
            margin-bottom: 16px;
        }
        .tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--primary);
            font-size: 13px;
            padding: 4px 12px;
            border-radius: 50px;
            margin-right: 8px;
            margin-bottom: 8px;
            font-weight: 500;
        }
        .bar-chart {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin: 24px 0;
        }
        .bar-item {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .bar-label {
            width: 100px;
            font-size: 14px;
            color: var(--text-muted);
            text-align: right;
            flex-shrink: 0;
        }
        .bar-track {
            flex: 1;
            height: 28px;
            background: var(--bg-green-gray);
            border-radius: 4px;
            position: relative;
            overflow: hidden;
        }
        .bar-fill {
            height: 100%;
            border-radius: 4px;
            transition: width 1s ease;
            background: var(--primary);
        }
        .bar-fill.accent {
            background: var(--accent);
        }
        .bar-value {
            width: 60px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            flex-shrink: 0;
        }
        .news-list {
            display: flex;
            flex-direction: column;
        }
        .news-item {
            border-bottom: 1px solid var(--border-line);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: flex-start;
        }
        .news-date {
            font-size: 14px;
            color: var(--text-muted);
            width: 100px;
            flex-shrink: 0;
        }
        .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .news-content p {
            font-size: 15px;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .news-content .read-more {
            color: var(--accent);
            font-size: 14px;
            font-weight: 500;
        }
        .news-content .read-more:hover {
            text-decoration: underline;
            text-decoration-thickness: 2px;
            text-decoration-color: var(--accent);
        }
        .faq-section {
            background: var(--bg-green-gray);
            border-radius: var(--radius-card);
            padding: 48px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 18px;
            font-weight: 500;
            color: var(--primary);
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
            transition: all var(--transition-fast);
        }
        .faq-question:hover {
            background: var(--bg-warm);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 24px;
            font-size: 16px;
            color: var(--text-dark);
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-icon {
            font-size: 20px;
            color: var(--accent);
            font-weight: 700;
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .cta-form-section {
            background: var(--bg-green-gray);
            border-radius: var(--radius-card);
            padding: 48px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-dark);
            display: block;
            margin-bottom: 8px;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: 4px;
            padding: 12px 16px;
            font-size: 16px;
            font-family: var(--font-sans);
            color: var(--text-dark);
            transition: all var(--transition-fast);
            height: 48px;
        }
        .form-group textarea {
            height: 120px;
            resize: vertical;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--accent);
            outline: none;
            box-shadow: 0 0 0 3px rgba(201,169,110,0.25);
        }
        .site-footer {
            background: var(--primary);
            color: var(--text-footer);
            padding: 64px 0 32px;
            border-top: 4px solid var(--accent);
        }
        .site-footer a {
            color: var(--text-footer);
        }
        .site-footer a:hover {
            color: var(--accent);
            text-decoration: underline;
            text-decoration-thickness: 2px;
        }
        .site-footer .logo-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-footer);
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col a,
        .footer-col p {
            display: block;
            font-size: 14px;
            color: var(--text-footer);
            margin-bottom: 10px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.15);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: var(--text-footer);
        }
        .footer-legal a {
            margin-left: 16px;
            color: var(--text-footer);
        }
        .fade-up {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
            .cta-form-section {
                grid-template-columns: 1fr;
                padding: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-hero h1 {
                font-size: 40px;
            }
        }
        @media (max-width: 640px) {
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .metric-number {
                font-size: 32px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .page-hero {
                padding: 48px 0 40px;
            }
            .section-padding {
                padding: 48px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-legal a {
                margin-left: 0;
                margin-right: 16px;
            }
            .faq-section,
            .cta-form-section {
                padding: 24px;
            }
            .compare-table {
                font-size: 13px;
            }
            .compare-table thead th,
            .compare-table tbody td,
            .compare-table tbody th {
                padding: 10px 12px;
            }
        }

/* roulang page: category1 */
:root {
        --primary: #1A2E2A;
        --primary-dark: #0F1D19;
        --accent: #C9A96E;
        --accent-light: #E8D9BE;
        --accent-glow: rgba(201, 169, 110, 0.25);
        --bg-warm: #FAF8F5;
        --bg-green-gray: #F0F2EE;
        --text-dark: #2C3A36;
        --text-muted: #6B7D79;
        --text-footer: #D5DCD9;
        --border-line: #E5E3DF;
        --radius-card: 8px;
        --radius-btn: 6px;
        --shadow-card: 0 2px 8px rgba(26, 46, 42, 0.06);
        --shadow-card-hover: 0 6px 20px rgba(26, 46, 42, 0.12);
        --shadow-panel: 0 4px 16px rgba(26, 46, 42, 0.08);
        --spacing-section: 72px;
        --spacing-card: 28px;
        --transition-base: 0.3s ease;
        --transition-fast: 0.25s ease;
        --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        --container-max: 1200px;
        --nav-height: 72px;
    }

    * {
        box-sizing: border-box;
    }

    html {
        scroll-behavior: smooth;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.8;
        color: var(--text-dark);
        background-color: var(--bg-warm);
        letter-spacing: 0.01em;
        overflow-x: hidden;
        margin: 0;
        padding: 0;
    }

    a {
        text-decoration: none;
        color: inherit;
        transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
    }

    a:hover,
    a:focus {
        color: var(--accent);
        text-decoration: underline;
        text-decoration-thickness: 2px;
        text-decoration-color: var(--accent);
        outline: none;
    }

    a:focus-visible {
        outline: 2px solid var(--accent);
        outline-offset: 2px;
    }

    img {
        max-width: 100%;
        height: auto;
        display: block;
        border-radius: var(--radius-card);
    }

    button {
        font-family: var(--font-sans);
        cursor: pointer;
        transition: all var(--transition-fast);
        border: none;
        border-radius: var(--radius-btn);
    }

    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible {
        outline: 2px solid var(--accent);
        outline-offset: 2px;
    }

    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
        font-family: var(--font-sans);
        color: var(--primary);
        letter-spacing: -0.02em;
        line-height: 1.3;
        margin: 0 0 16px 0;
    }

    h1 {
        font-size: 44px;
        font-weight: 700;
        letter-spacing: -0.02em;
    }

    h2 {
        font-size: 32px;
        font-weight: 600;
        letter-spacing: -0.02em;
    }

    h3 {
        font-size: 20px;
        font-weight: 500;
        letter-spacing: -0.01em;
    }

    p {
        margin: 0 0 16px 0;
    }

    .container-custom {
        max-width: var(--container-max);
        margin: 0 auto;
        padding-left: 48px;
        padding-right: 48px;
    }

    /* Header / Navigation */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background-color: var(--bg-warm);
        border-bottom: 1px solid var(--border-line);
        min-height: var(--nav-height);
    }

    .site-header .container-custom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: var(--nav-height);
        gap: 24px;
    }

    .brand-logo {
        font-size: 20px;
        font-weight: 700;
        letter-spacing: -0.02em;
        color: var(--primary);
        white-space: nowrap;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .brand-logo .logo-dot {
        display: inline-block;
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background-color: var(--accent);
        flex-shrink: 0;
    }

    .brand-logo:hover,
    .brand-logo:focus {
        color: var(--primary);
        text-decoration: none;
    }

    .main-nav {
        display: flex;
        align-items: center;
        gap: 28px;
        flex-wrap: nowrap;
    }

    .main-nav a {
        font-size: 15px;
        font-weight: 400;
        color: var(--text-dark);
        white-space: nowrap;
        position: relative;
        padding: 8px 0;
        text-decoration: none;
        transition: color var(--transition-fast);
    }

    .main-nav a:hover,
    .main-nav a:focus {
        color: var(--accent);
        text-decoration: none;
    }

    .main-nav a.active {
        color: var(--accent);
        font-weight: 500;
    }

    .main-nav a.active::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 3px;
        background-color: var(--accent);
        border-radius: 3px 3px 0 0;
    }

    .nav-toggle {
        display: none;
        background: none;
        border: none;
        font-size: 24px;
        color: var(--primary);
        padding: 8px;
        line-height: 1;
    }

    .nav-toggle:hover {
        color: var(--accent);
    }

    /* Hero Section */
    .page-hero {
        position: relative;
        background: linear-gradient(180deg, var(--bg-green-gray) 0%, var(--bg-warm) 100%);
        padding: 64px 0 48px;
        border-bottom: 1px solid var(--border-line);
        overflow: hidden;
        min-height: 360px;
        display: flex;
        align-items: center;
    }

    .page-hero .hero-content {
        position: relative;
        z-index: 2;
        max-width: 720px;
    }

    .page-hero .hero-tag {
        display: inline-block;
        background-color: var(--accent);
        color: var(--primary-dark);
        font-size: 13px;
        font-weight: 500;
        padding: 4px 14px;
        border-radius: 20px;
        margin-bottom: 16px;
        letter-spacing: 0.02em;
    }

    .page-hero h1 {
        font-size: 44px;
        color: var(--primary);
        margin-bottom: 12px;
    }

    .page-hero .hero-sub {
        font-size: 17px;
        font-weight: 400;
        color: var(--text-muted);
        line-height: 1.8;
        margin-bottom: 28px;
        letter-spacing: 0.01em;
    }

    .hero-cta-row {
        display: flex;
        gap: 16px;
        flex-wrap: wrap;
    }

    .btn-primary {
        background-color: var(--primary);
        color: #fff;
        padding: 12px 32px;
        border-radius: var(--radius-btn);
        font-size: 16px;
        font-weight: 500;
        border: none;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        text-decoration: none;
        transition: all var(--transition-fast);
    }

    .btn-primary:hover,
    .btn-primary:focus {
        background-color: var(--primary-dark);
        color: #fff;
        text-decoration: none;
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(26, 46, 42, 0.25);
    }

    .btn-accent {
        background-color: var(--accent);
        color: var(--primary-dark);
        padding: 12px 32px;
        border-radius: var(--radius-btn);
        font-size: 16px;
        font-weight: 600;
        border: none;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        text-decoration: none;
        transition: all var(--transition-fast);
    }

    .btn-accent:hover,
    .btn-accent:focus {
        background-color: #B8925A;
        color: var(--primary-dark);
        text-decoration: none;
        transform: translateY(-2px);
        box-shadow: 0 4px 14px rgba(201, 169, 110, 0.35);
    }

    .btn-outline {
        background: transparent;
        color: var(--primary);
        padding: 12px 28px;
        border-radius: var(--radius-btn);
        font-size: 16px;
        font-weight: 500;
        border: 1px solid var(--primary);
        display: inline-flex;
        align-items: center;
        gap: 8px;
        text-decoration: none;
        transition: all var(--transition-fast);
    }

    .btn-outline:hover,
    .btn-outline:focus {
        background-color: var(--primary);
        color: #fff;
        text-decoration: none;
        transform: translateY(-2px);
    }

    .btn-text-link {
        background: none;
        border: none;
        color: var(--accent);
        font-size: 15px;
        font-weight: 500;
        padding: 0;
        text-decoration: none;
        display: inline-flex;
        align-items: center;
        gap: 4px;
        transition: all var(--transition-fast);
    }

    .btn-text-link:hover,
    .btn-text-link:focus {
        color: var(--primary);
        text-decoration: underline;
        text-decoration-thickness: 2px;
        text-decoration-color: var(--accent);
    }

    /* Metrics Dashboard */
    .metrics-dashboard {
        padding: var(--spacing-section) 0 56px;
        background-color: var(--bg-warm);
    }

    .metrics-grid {
        display: grid;
        grid-template-columns: repeat(6, 1fr);
        gap: 20px;
        margin-top: 28px;
    }

    .metric-item {
        background-color: var(--bg-green-gray);
        border-radius: var(--radius-card);
        padding: 24px 20px;
        text-align: center;
        border: 1px solid var(--border-line);
        transition: all var(--transition-base);
    }

    .metric-item:hover {
        background-color: #fff;
        box-shadow: var(--shadow-card-hover);
        border-color: var(--accent);
        transform: translateY(-3px);
    }

    .metric-number {
        font-size: 40px;
        font-weight: 700;
        color: var(--primary);
        line-height: 1.2;
        letter-spacing: -0.02em;
    }

    .metric-label {
        font-size: 14px;
        font-weight: 400;
        color: var(--text-muted);
        margin-top: 6px;
    }

    /* News Center */
    .news-center {
        padding: var(--spacing-section) 0;
        background-color: #fff;
        border-top: 1px solid var(--border-line);
        border-bottom: 1px solid var(--border-line);
    }

    .news-list {
        margin-top: 24px;
        display: flex;
        flex-direction: column;
    }

    .news-item {
        border-bottom: 1px solid var(--border-line);
        padding: 20px 0;
        transition: all var(--transition-base);
    }

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

    .news-item-date {
        font-size: 14px;
        font-weight: 400;
        color: var(--text-muted);
        margin-bottom: 6px;
        letter-spacing: 0.02em;
    }

    .news-item-title {
        font-size: 18px;
        font-weight: 600;
        color: var(--primary);
        margin-bottom: 8px;
        line-height: 1.4;
    }

    .news-item-summary {
        font-size: 16px;
        font-weight: 400;
        color: var(--text-dark);
        line-height: 1.8;
        margin-bottom: 10px;
    }

    .news-pagination {
        display: flex;
        justify-content: center;
        gap: 12px;
        margin-top: 32px;
        align-items: center;
    }

    .pagination-dot {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background-color: var(--bg-green-gray);
        border: 1px solid var(--border-line);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        font-weight: 500;
        color: var(--text-dark);
        cursor: pointer;
        transition: all var(--transition-fast);
    }

    .pagination-dot.active {
        background-color: var(--primary);
        color: #fff;
        border-color: var(--primary);
    }

    .pagination-dot:hover {
        background-color: var(--accent);
        border-color: var(--accent);
        color: var(--primary-dark);
    }

    /* Deep Content */
    .deep-content {
        padding: var(--spacing-section) 0;
        background-color: var(--bg-warm);
    }

    .deep-content .prose-intro {
        font-size: 16px;
        line-height: 1.9;
        color: var(--text-dark);
        max-width: 860px;
        letter-spacing: 0.01em;
        text-align: justify;
        margin-bottom: 32px;
    }

    .deep-content .prose-intro::first-letter {
        font-size: 48px;
        font-weight: 700;
        color: var(--accent);
        float: left;
        line-height: 1;
        margin-right: 10px;
        margin-top: 4px;
    }

    /* Indicator Matrix */
    .indicator-matrix {
        padding: var(--spacing-section) 0;
        background-color: var(--bg-green-gray);
        border-top: 1px solid var(--border-line);
        border-bottom: 1px solid var(--border-line);
    }

    .matrix-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 28px;
        margin-top: 28px;
    }

    .matrix-card {
        background-color: #fff;
        border-radius: var(--radius-card);
        border: 1px solid var(--border-line);
        padding: 28px;
        box-shadow: var(--shadow-card);
        transition: all var(--transition-base);
        position: relative;
        overflow: hidden;
    }

    .matrix-card:nth-child(1) {
        grid-column: span 2;
    }

    .matrix-card:hover {
        box-shadow: var(--shadow-card-hover);
        border-color: var(--accent);
        transform: translateY(-3px);
    }

    .matrix-card .card-index {
        font-size: 13px;
        font-weight: 600;
        color: var(--accent);
        letter-spacing: 0.08em;
        margin-bottom: 10px;
        text-transform: uppercase;
    }

    .matrix-card h3 {
        font-size: 20px;
        margin-bottom: 10px;
    }

    .matrix-card p {
        font-size: 15px;
        line-height: 1.8;
        color: var(--text-dark);
        margin-bottom: 12px;
    }

    .matrix-card .card-img {
        width: 100%;
        height: 160px;
        object-fit: cover;
        border-radius: var(--radius-card);
        margin-top: 12px;
    }

    /* Trend Chart */
    .trend-chart-section {
        padding: var(--spacing-section) 0;
        background-color: var(--bg-warm);
        border-bottom: 1px solid var(--border-line);
    }

    .chart-panel {
        background-color: #fff;
        border-radius: var(--radius-card);
        border: 1px solid var(--border-line);
        padding: 32px 28px;
        box-shadow: var(--shadow-card);
        margin-top: 24px;
    }

    .chart-bars {
        display: flex;
        align-items: flex-end;
        gap: 12px;
        height: 220px;
        padding: 16px 0;
        border-bottom: 2px solid var(--border-line);
    }

    .chart-bar {
        flex: 1;
        background: linear-gradient(180deg, var(--accent) 0%, var(--accent-light) 100%);
        border-radius: 4px 4px 0 0;
        min-height: 20px;
        transition: all var(--transition-base);
        position: relative;
    }

    .chart-bar:nth-child(even) {
        background: linear-gradient(180deg, var(--primary) 0%, #2C4A42 100%);
    }

    .chart-bar:hover {
        opacity: 0.85;
        transform: scaleY(1.03);
        transform-origin: bottom;
    }

    .chart-bar .bar-value {
        position: absolute;
        top: -28px;
        left: 50%;
        transform: translateX(-50%);
        font-size: 13px;
        font-weight: 600;
        color: var(--primary);
        white-space: nowrap;
    }

    .chart-labels {
        display: flex;
        gap: 12px;
        margin-top: 10px;
    }

    .chart-label {
        flex: 1;
        text-align: center;
        font-size: 13px;
        color: var(--text-muted);
    }

    /* Use Cases */
    .use-cases {
        padding: var(--spacing-section) 0;
        background-color: #fff;
        border-bottom: 1px solid var(--border-line);
    }

    .cases-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 28px;
        margin-top: 28px;
    }

    .case-card {
        background-color: var(--bg-warm);
        border-radius: var(--radius-card);
        border: 1px solid var(--border-line);
        padding: 28px;
        transition: all var(--transition-base);
    }

    .case-card:hover {
        background-color: #fff;
        box-shadow: var(--shadow-card-hover);
        border-color: var(--accent);
    }

    .case-card h3 {
        font-size: 19px;
        margin-bottom: 10px;
    }

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

    /* FAQ */
    .faq-section {
        padding: var(--spacing-section) 0;
        background-color: var(--bg-green-gray);
        border-bottom: 1px solid var(--border-line);
    }

    .faq-accordion {
        margin-top: 24px;
        list-style: none;
        padding: 0;
        margin-left: 0;
        margin-right: 0;
    }

    .faq-item {
        background-color: #fff;
        border-bottom: 1px solid var(--border-line);
        border-radius: 0;
        margin-bottom: 0;
    }

    .faq-item:first-child {
        border-radius: var(--radius-card) var(--radius-card) 0 0;
        overflow: hidden;
    }

    .faq-item:last-child {
        border-radius: 0 0 var(--radius-card) var(--radius-card);
        overflow: hidden;
    }

    .faq-title {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 18px 24px;
        font-size: 17px;
        font-weight: 500;
        color: var(--primary);
        cursor: pointer;
        transition: all var(--transition-fast);
        background-color: #fff;
        border: none;
        width: 100%;
        text-align: left;
        letter-spacing: 0.01em;
    }

    .faq-title:hover {
        background-color: #F8F5F0;
        color: var(--accent);
    }

    .faq-title .faq-icon {
        font-size: 20px;
        color: var(--accent);
        font-weight: 400;
        transition: transform var(--transition-fast);
    }

    .faq-item.is-active .faq-title .faq-icon {
        transform: rotate(45deg);
    }

    .faq-content {
        display: none;
        padding: 0 24px 20px;
        font-size: 16px;
        line-height: 1.8;
        color: var(--text-dark);
    }

    .faq-item.is-active .faq-content {
        display: block;
    }

    /* CTA / Form */
    .cta-section {
        padding: var(--spacing-section) 0;
        background-color: var(--bg-warm);
    }

    .cta-panel {
        background-color: var(--bg-green-gray);
        border-radius: var(--radius-card);
        padding: 40px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 40px;
        align-items: center;
        border: 1px solid var(--border-line);
    }

    .cta-info h2 {
        font-size: 28px;
        margin-bottom: 14px;
    }

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

    .cta-form {
        display: flex;
        flex-direction: column;
        gap: 16px;
    }

    .form-group {
        display: flex;
        flex-direction: column;
        gap: 6px;
    }

    .form-group label {
        font-size: 14px;
        font-weight: 500;
        color: var(--text-dark);
    }

    .form-group input,
    .form-group textarea {
        background-color: #fff;
        border: 1px solid var(--border-line);
        border-radius: 4px;
        height: 48px;
        padding: 0 16px;
        font-family: var(--font-sans);
        font-size: 15px;
        color: var(--text-dark);
        transition: all var(--transition-fast);
        letter-spacing: 0.01em;
        width: 100%;
    }

    .form-group textarea {
        height: 100px;
        padding: 12px 16px;
        resize: vertical;
    }

    .form-group input:focus,
    .form-group textarea:focus {
        border-color: var(--accent);
        box-shadow: 0 0 0 3px var(--accent-glow);
        outline: none;
    }

    .btn-submit {
        background-color: var(--primary);
        color: #fff;
        padding: 14px 32px;
        border-radius: var(--radius-btn);
        font-size: 16px;
        font-weight: 500;
        border: none;
        cursor: pointer;
        transition: all var(--transition-fast);
        margin-top: 8px;
    }

    .btn-submit:hover,
    .btn-submit:focus {
        background-color: var(--primary-dark);
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(26, 46, 42, 0.25);
    }

    /* Footer */
    .site-footer {
        background-color: var(--primary);
        padding: 56px 0 28px;
        color: var(--text-footer);
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 40px;
        margin-bottom: 32px;
    }

    .site-footer h3 {
        color: #fff;
        font-size: 20px;
        margin-bottom: 14px;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .site-footer h3 .logo-dot {
        display: inline-block;
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background-color: var(--accent);
    }

    .site-footer h4 {
        color: #fff;
        font-size: 16px;
        font-weight: 500;
        margin-bottom: 12px;
    }

    .site-footer p {
        font-size: 14px;
        line-height: 1.7;
        color: var(--text-footer);
        margin-bottom: 8px;
    }

    .site-footer a {
        color: var(--text-footer);
        font-size: 14px;
        text-decoration: none;
        display: inline-block;
        padding: 3px 0;
        transition: color var(--transition-fast);
    }

    .site-footer a:hover {
        color: #fff;
        text-decoration: underline;
    }

    .footer-col {
        display: flex;
        flex-direction: column;
    }

    .footer-bottom {
        border-top: 1px solid rgba(213, 220, 217, 0.2);
        padding-top: 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
    }

    .footer-bottom span {
        font-size: 14px;
        color: var(--text-footer);
    }

    .footer-legal {
        display: flex;
        gap: 16px;
        align-items: center;
    }

    .footer-legal a {
        font-size: 14px;
        color: var(--accent);
    }

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

    /* Fade-up animation */
    .fade-up {
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    }

    .fade-up.is-visible {
        opacity: 1;
        transform: translateY(0);
    }

    /* Section title helper */
    .section-title-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 8px;
        flex-wrap: wrap;
        gap: 12px;
    }

    .section-title-row h2 {
        margin-bottom: 0;
    }

    .section-desc {
        font-size: 15px;
        color: var(--text-muted);
        max-width: 640px;
        line-height: 1.8;
        margin-top: 8px;
    }

    /* Responsive */
    @media (max-width: 1024px) {
        :root {
            --spacing-section: 56px;
        }

        .container-custom {
            padding-left: 32px;
            padding-right: 32px;
        }

        .main-nav {
            gap: 20px;
        }

        .main-nav a {
            font-size: 14px;
        }

        .page-hero h1 {
            font-size: 40px;
        }

        h2 {
            font-size: 28px;
        }

        .metrics-grid {
            grid-template-columns: repeat(3, 1fr);
        }

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

        .matrix-card:nth-child(1) {
            grid-column: span 2;
        }

        .cta-panel {
            grid-template-columns: 1fr;
            gap: 24px;
        }
    }

    @media (max-width: 768px) {
        :root {
            --spacing-section: 44px;
            --nav-height: 64px;
        }

        .container-custom {
            padding-left: 20px;
            padding-right: 20px;
        }

        .nav-toggle {
            display: block;
        }

        .main-nav {
            display: none;
            position: absolute;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background-color: var(--bg-warm);
            flex-direction: column;
            align-items: flex-start;
            gap: 0;
            border-bottom: 1px solid var(--border-line);
            box-shadow: 0 8px 24px rgba(26, 46, 42, 0.08);
            padding: 12px 20px 20px;
            max-height: calc(100vh - var(--nav-height));
            overflow-y: auto;
        }

        .main-nav.is-open {
            display: flex;
        }

        .main-nav a {
            display: block;
            width: 100%;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-line);
            font-size: 16px;
        }

        .main-nav a:last-child {
            border-bottom: none;
        }

        .main-nav a.active::after {
            display: none;
        }

        .page-hero {
            padding: 40px 0 32px;
            min-height: 280px;
        }

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

        h2 {
            font-size: 24px;
        }

        h3 {
            font-size: 18px;
        }

        .metrics-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }

        .metric-number {
            font-size: 28px;
        }

        .metric-item {
            padding: 16px 12px;
        }

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

        .matrix-card:nth-child(1) {
            grid-column: span 1;
        }

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

        .cta-panel {
            padding: 28px 20px;
        }

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

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

        .chart-bars {
            height: 160px;
        }
    }

    @media (max-width: 480px) {
        .page-hero h1 {
            font-size: 28px;
        }

        h2 {
            font-size: 22px;
        }

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

        .metric-number {
            font-size: 24px;
        }

        .hero-cta-row {
            flex-direction: column;
            gap: 10px;
        }

        .btn-primary,
        .btn-accent,
        .btn-outline {
            width: 100%;
            justify-content: center;
            padding: 12px 20px;
            font-size: 15px;
        }

        .news-item {
            padding: 16px 0;
        }

        .news-item-title {
            font-size: 16px;
        }
    }

/* roulang page: category5 */
:root {
            --primary: #1A2E2A;
            --primary-dark: #0F1D19;
            --accent: #C9A96E;
            --accent-light: #E8D9BE;
            --bg-warm: #FAF8F5;
            --bg-green-gray: #F0F2EE;
            --text-dark: #2C3A36;
            --text-muted: #6B7D79;
            --text-footer: #D5DCD9;
            --border-line: #E5E3DF;
            --radius-card: 8px;
            --radius-btn: 6px;
            --shadow-card: 0 2px 8px rgba(26, 46, 42, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(26, 46, 42, 0.12);
            --spacing-section: 72px;
            --spacing-card: 28px;
            --transition-base: 0.3s ease;
            --transition-fast: 0.25s ease;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--bg-warm);
            letter-spacing: 0.01em;
            overflow-x: hidden;
            margin: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
        }

        a:hover,
        a:focus {
            color: var(--accent);
            text-decoration: underline;
            text-decoration-thickness: 2px;
            text-decoration-color: var(--accent);
            outline: none;
        }

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        button {
            font-family: var(--font-sans);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 48px;
            padding-right: 48px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--bg-warm);
            border-bottom: 1px solid var(--border-line);
            min-height: var(--nav-height);
        }

        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--nav-height);
            gap: 24px;
        }

        .brand-logo {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .brand-logo .logo-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent);
            flex-shrink: 0;
        }

        .brand-logo:hover,
        .brand-logo:focus {
            color: var(--primary);
            text-decoration: none;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: nowrap;
        }

        .main-nav a {
            font-size: 16px;
            font-weight: 400;
            color: var(--text-dark);
            white-space: nowrap;
            position: relative;
            padding: 8px 0;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .main-nav a:hover,
        .main-nav a:focus {
            color: var(--accent);
            text-decoration: none;
        }

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

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background-color: var(--accent);
            border-radius: 3px 3px 0 0;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--primary);
            padding: 8px;
            line-height: 1;
        }

        .nav-toggle:hover {
            color: var(--accent);
        }

        /* Hero */
        .page-hero {
            background-color: var(--primary);
            background-image: linear-gradient(135deg, rgba(26, 46, 42, 0.92) 0%, rgba(15, 29, 25, 0.95) 100%), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 380px;
            display: flex;
            align-items: center;
            padding: 80px 0;
            position: relative;
        }

        .page-hero .container-custom {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .page-hero .hero-content {
            max-width: 720px;
        }

        .page-hero .hero-badge {
            display: inline-block;
            background-color: rgba(201, 169, 110, 0.18);
            color: var(--accent);
            font-size: 14px;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: 100px;
            letter-spacing: 0.02em;
            margin-bottom: 20px;
            border: 1px solid rgba(201, 169, 110, 0.35);
        }

        .page-hero h1 {
            font-size: 48px;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: -0.02em;
            margin: 0 0 20px 0;
            line-height: 1.25;
        }

        .page-hero .hero-subtitle {
            font-size: 18px;
            font-weight: 400;
            color: var(--text-footer);
            margin: 0 0 32px 0;
            max-width: 620px;
        }

        .hero-search-wrapper {
            max-width: 560px;
            position: relative;
        }

        .hero-search-wrapper input {
            width: 100%;
            height: 56px;
            border-radius: var(--radius-btn);
            border: 1px solid transparent;
            background-color: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            color: #ffffff;
            font-size: 16px;
            padding: 0 56px 0 20px;
            letter-spacing: 0.01em;
            transition: all var(--transition-fast);
        }

        .hero-search-wrapper input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }

        .hero-search-wrapper input:focus {
            border-color: var(--accent);
            background-color: rgba(255, 255, 255, 0.15);
            box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.25);
            outline: none;
        }

        .hero-search-wrapper button {
            position: absolute;
            right: 8px;
            top: 50%;
            transform: translateY(-50%);
            background-color: var(--accent);
            color: var(--primary-dark);
            border: none;
            width: 40px;
            height: 40px;
            border-radius: 4px;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-search-wrapper button:hover {
            background-color: #d4b87e;
            transform: translateY(-50%) scale(1.05);
        }

        /* Section */
        .section-block {
            padding: var(--spacing-section) 0;
        }

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

        .section-block.section-dark {
            background-color: var(--primary);
            color: var(--text-footer);
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 14px;
            font-weight: 500;
            color: var(--accent);
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-header h2 {
            font-size: 34px;
            font-weight: 600;
            letter-spacing: -0.02em;
            color: var(--primary);
            margin: 0 0 12px 0;
            line-height: 1.3;
        }

        .section-header .section-desc {
            font-size: 16px;
            font-weight: 400;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0;
        }

        .section-dark .section-header h2 {
            color: #ffffff;
        }

        .section-dark .section-header .section-desc {
            color: var(--text-footer);
        }

        /* Metric Cards */
        .metric-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .metric-card {
            background-color: #ffffff;
            border-radius: var(--radius-card);
            padding: 28px 24px;
            border: 1px solid var(--border-line);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            text-align: left;
        }

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

        .metric-card .metric-value {
            font-size: 48px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1.1;
            margin-bottom: 8px;
        }

        .metric-card .metric-label {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-muted);
        }

        .metric-card .metric-unit {
            font-size: 16px;
            font-weight: 500;
            color: var(--text-muted);
            margin-left: 2px;
        }

        /* Service Matrix */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .service-card {
            background-color: #ffffff;
            border-radius: var(--radius-card);
            padding: var(--spacing-card);
            border: 1px solid var(--border-line);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

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

        .service-card .card-number {
            font-size: 14px;
            font-weight: 500;
            color: var(--accent);
            letter-spacing: 0.04em;
        }

        .service-card h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--primary);
            margin: 0;
            letter-spacing: -0.02em;
        }

        .service-card p {
            font-size: 16px;
            font-weight: 400;
            color: var(--text-dark);
            margin: 0;
            line-height: 1.8;
            flex-grow: 1;
        }

        .service-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: var(--radius-card);
        }

        .service-card .card-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--accent);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
        }

        .service-card .card-link:hover {
            color: var(--primary);
            text-decoration: underline;
            text-decoration-thickness: 2px;
            text-decoration-color: var(--accent);
        }

        /* Comparison */
        .comparison-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }

        .comparison-table-wrap {
            background-color: #ffffff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-line);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
        }

        .comparison-table thead th {
            background-color: var(--primary);
            color: #ffffff;
            font-weight: 500;
            padding: 16px 20px;
            text-align: left;
            letter-spacing: 0.02em;
            border-bottom: 2px solid var(--accent);
        }

        .comparison-table tbody td {
            padding: 14px 20px;
            border-bottom: 1px solid var(--border-line);
            color: var(--text-dark);
        }

        .comparison-table tbody tr:last-child td {
            border-bottom: none;
        }

        .comparison-table tbody tr:hover td {
            background-color: var(--bg-green-gray);
        }

        .comparison-text h3 {
            font-size: 24px;
            font-weight: 600;
            color: var(--primary);
            margin: 0 0 16px 0;
            letter-spacing: -0.02em;
        }

        .comparison-text p {
            font-size: 16px;
            font-weight: 400;
            color: var(--text-dark);
            margin: 0 0 16px 0;
            line-height: 1.8;
        }

        .comparison-text .highlight-text {
            font-weight: 500;
            color: var(--accent);
        }

        /* FAQ Accordion */
        .faq-search-bar {
            display: flex;
            gap: 12px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }

        .faq-search-bar input {
            flex: 1;
            min-width: 220px;
            height: 48px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border-line);
            background-color: #ffffff;
            color: var(--text-dark);
            font-size: 16px;
            padding: 0 16px;
            transition: all var(--transition-fast);
        }

        .faq-search-bar input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.25);
            outline: none;
        }

        .faq-search-bar button {
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            border: none;
            background-color: var(--accent);
            color: var(--primary-dark);
            font-size: 16px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
        }

        .faq-search-bar button:hover {
            background-color: #d4b87e;
            transform: translateY(-1px);
        }

        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .faq-item {
            background-color: #ffffff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-base);
        }

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

        .faq-item-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            background-color: #ffffff;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
            gap: 16px;
        }

        .faq-item-header .faq-question {
            font-size: 18px;
            font-weight: 500;
            color: var(--primary);
            letter-spacing: -0.01em;
            flex: 1;
        }

        .faq-item-header .faq-icon {
            font-size: 20px;
            color: var(--accent);
            flex-shrink: 0;
            transition: transform var(--transition-fast);
        }

        .faq-item.is-open .faq-item-header .faq-icon {
            transform: rotate(45deg);
        }

        .faq-item-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 24px;
        }

        .faq-item.is-open .faq-item-body {
            max-height: 400px;
            padding: 0 24px 20px 24px;
        }

        .faq-item-body p {
            font-size: 16px;
            font-weight: 400;
            color: var(--text-dark);
            line-height: 1.8;
            margin: 0;
            padding-top: 4px;
            border-top: 1px solid var(--border-line);
            padding-top: 16px;
        }

        /* Quick Help Cards */
        .quick-help-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .quick-help-card {
            background-color: #ffffff;
            border-radius: var(--radius-card);
            padding: 28px 24px;
            border: 1px solid var(--border-line);
            box-shadow: var(--shadow-card);
            text-align: center;
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .quick-help-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--accent);
            transform: translateY(-3px);
        }

        .quick-help-card .quick-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background-color: var(--bg-green-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent);
            margin: 0 auto 16px auto;
            transition: all var(--transition-fast);
        }

        .quick-help-card:hover .quick-icon {
            background-color: var(--accent);
            color: #ffffff;
        }

        .quick-help-card h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin: 0 0 8px 0;
        }

        .quick-help-card p {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* CTA Form */
        .cta-form-section {
            background-color: var(--bg-green-gray);
            border-radius: var(--radius-card);
            padding: 48px 40px;
        }

        .cta-form-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .cta-form-info h3 {
            font-size: 26px;
            font-weight: 600;
            color: var(--primary);
            margin: 0 0 12px 0;
            letter-spacing: -0.02em;
        }

        .cta-form-info p {
            font-size: 16px;
            font-weight: 400;
            color: var(--text-dark);
            margin: 0;
            line-height: 1.8;
        }

        .cta-form-fields {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-group label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-dark);
        }

        .form-group input,
        .form-group textarea {
            height: 48px;
            border-radius: 4px;
            border: 1px solid var(--border-line);
            background-color: #ffffff;
            color: var(--text-dark);
            font-size: 16px;
            padding: 0 16px;
            font-family: var(--font-sans);
            transition: all var(--transition-fast);
        }

        .form-group textarea {
            height: 120px;
            padding: 12px 16px;
            resize: vertical;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.25);
            outline: none;
        }

        .submit-btn {
            height: 52px;
            border-radius: var(--radius-btn);
            border: none;
            background-color: var(--primary);
            color: #ffffff;
            font-size: 16px;
            font-weight: 500;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            width: 100%;
        }

        .submit-btn:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background-color: var(--primary);
            color: var(--text-footer);
            padding: 56px 0 24px 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #ffffff;
            margin: 0 0 12px 0;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.02em;
        }

        .footer-brand .logo-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent);
            flex-shrink: 0;
        }

        .footer-brand p {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-footer);
            line-height: 1.7;
            margin: 0;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #ffffff;
            margin: 0 0 16px 0;
            letter-spacing: -0.01em;
        }

        .footer-col a,
        .footer-col p {
            display: block;
            font-size: 14px;
            font-weight: 400;
            color: var(--text-footer);
            margin: 0 0 10px 0;
            line-height: 1.6;
            text-decoration: none;
        }

        .footer-col a:hover {
            color: var(--accent);
            text-decoration: underline;
            text-decoration-thickness: 2px;
            text-decoration-color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            font-size: 14px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom span {
            color: var(--text-footer);
        }

        .footer-legal {
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .footer-legal a {
            color: var(--text-footer);
            font-size: 14px;
            text-decoration: none;
        }

        .footer-legal a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        /* Fade-up animation */
        .fade-up {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

        .fade-up.is-visible {
            opacity: 1;
            transform: translateY(0);
        }

        .fade-up-delay-1 {
            transition-delay: 0.1s;
        }

        .fade-up-delay-2 {
            transition-delay: 0.2s;
        }

        .fade-up-delay-3 {
            transition-delay: 0.3s;
        }

        /* Responsive */
        @media screen and (max-width: 1024px) {
            .container-custom {
                padding-left: 32px;
                padding-right: 32px;
            }

            .main-nav {
                gap: 20px;
            }

            .main-nav a {
                font-size: 14px;
            }

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

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

            .comparison-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .cta-form-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
        }

        @media screen and (max-width: 768px) {
            .container-custom {
                padding-left: 20px;
                padding-right: 20px;
            }

            .nav-toggle {
                display: block;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background-color: var(--bg-warm);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                border-bottom: 1px solid var(--border-line);
                box-shadow: 0 8px 24px rgba(26, 46, 42, 0.08);
                padding: 12px 20px 20px;
                max-height: calc(100vh - var(--nav-height));
                overflow-y: auto;
                z-index: 99;
            }

            .main-nav.is-open {
                display: flex;
            }

            .main-nav a {
                display: block;
                width: 100%;
                padding: 12px 0;
                border-bottom: 1px solid var(--border-line);
                font-size: 16px;
            }

            .main-nav a:last-child {
                border-bottom: none;
            }

            .main-nav a.active::after {
                display: none;
            }

            .main-nav a.active {
                background-color: var(--bg-green-gray);
                padding-left: 12px;
                border-radius: 4px;
                border-left: 3px solid var(--accent);
            }

            .page-hero {
                min-height: 320px;
                padding: 60px 0;
            }

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

            .page-hero .hero-subtitle {
                font-size: 16px;
            }

            .section-header h2 {
                font-size: 26px;
            }

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

            .metric-card .metric-value {
                font-size: 36px;
            }

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

            .quick-help-grid {
                grid-template-columns: 1fr;
            }

            .cta-form-section {
                padding: 32px 24px;
            }

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

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

            .faq-item-header {
                padding: 14px 16px;
            }

            .faq-item-header .faq-question {
                font-size: 16px;
            }

            .faq-item-body {
                padding: 0 16px;
            }

            .faq-item.is-open .faq-item-body {
                padding: 0 16px 16px 16px;
            }
        }

        @media screen and (min-width: 769px) {
            .nav-toggle {
                display: none;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1A2E2A;
            --primary-dark: #0F1D19;
            --accent: #C9A96E;
            --accent-light: #E8D9BE;
            --bg-warm: #FAF8F5;
            --bg-green-gray: #F0F2EE;
            --text-dark: #2C3A36;
            --text-muted: #6B7D79;
            --text-footer: #D5DCD9;
            --border-line: #E5E3DF;
            --radius-card: 8px;
            --radius-btn: 6px;
            --shadow-card: 0 2px 8px rgba(26, 46, 42, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(26, 46, 42, 0.12);
            --spacing-section: 72px;
            --spacing-card: 28px;
            --transition-base: 0.3s ease;
            --transition-fast: 0.25s ease;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--bg-warm);
            letter-spacing: 0.01em;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
        }

        a:hover,
        a:focus {
            color: var(--accent);
            text-decoration: underline;
            text-decoration-thickness: 2px;
            text-decoration-color: var(--accent);
            outline: none;
        }

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        button {
            font-family: var(--font-sans);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 48px;
            padding-right: 48px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--bg-warm);
            border-bottom: 1px solid var(--border-line);
            min-height: var(--nav-height);
        }

        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--nav-height);
            gap: 24px;
        }

        .brand-logo {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .brand-logo .logo-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent);
            flex-shrink: 0;
        }

        .brand-logo:hover,
        .brand-logo:focus {
            color: var(--primary);
            text-decoration: none;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: nowrap;
        }

        .main-nav a {
            font-size: 16px;
            font-weight: 400;
            color: var(--text-dark);
            white-space: nowrap;
            position: relative;
            padding: 8px 0;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .main-nav a:hover,
        .main-nav a:focus {
            color: var(--accent);
            text-decoration: none;
        }

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

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background-color: var(--accent);
            border-radius: 3px 3px 0 0;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--primary);
            padding: 8px;
            line-height: 1;
        }

        .nav-toggle:hover {
            color: var(--accent);
        }

        /* Hero Banner */
        .page-banner {
            background: linear-gradient(135deg, rgba(26, 46, 42, 0.92) 0%, rgba(26, 46, 42, 0.75) 50%, rgba(201, 169, 110, 0.45) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 72px 0 88px;
            color: #fff;
            position: relative;
            overflow: hidden;
            border-bottom: 4px solid var(--accent);
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 6px;
            background: linear-gradient(90deg, var(--accent) 0%, rgba(201, 169, 110, 0.3) 40%, transparent 70%);
        }

        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 760px;
        }

        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(201, 169, 110, 0.18);
            border: 1px solid rgba(201, 169, 110, 0.4);
            color: var(--accent-light);
            font-size: 14px;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 20px;
            letter-spacing: 0.04em;
            backdrop-filter: blur(4px);
        }

        .banner-content h1 {
            font-size: 52px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: #fff;
            margin-bottom: 20px;
            line-height: 1.25;
        }

        .banner-content h1 .accent-text {
            color: var(--accent-light);
            border-bottom: 3px solid var(--accent);
            padding-bottom: 2px;
        }

        .banner-sub {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            max-width: 620px;
        }

        .banner-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            font-size: 16px;
            font-weight: 500;
            line-height: 1.5;
            text-decoration: none;
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            text-decoration: none;
            box-shadow: 0 8px 24px rgba(26, 46, 42, 0.25);
        }

        .btn-accent {
            background-color: var(--accent);
            color: var(--primary-dark);
            font-weight: 600;
        }

        .btn-accent:hover {
            background-color: #b8925a;
            color: var(--primary-dark);
            transform: translateY(-2px);
            text-decoration: none;
            box-shadow: 0 8px 24px rgba(201, 169, 110, 0.35);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            text-decoration: none;
        }

        .btn-download {
            background-color: var(--accent);
            color: var(--primary-dark);
            font-weight: 600;
            padding: 10px 22px;
            font-size: 14px;
            border-radius: var(--radius-btn);
        }

        .btn-download:hover {
            background-color: #b8925a;
            color: var(--primary-dark);
            transform: translateY(-2px);
            text-decoration: none;
            box-shadow: 0 6px 18px rgba(201, 169, 110, 0.3);
        }

        .btn-download i {
            font-size: 14px;
        }

        /* Section common */
        .section {
            padding: var(--spacing-section) 0;
        }

        .section-alt {
            background-color: var(--bg-green-gray);
        }

        .section-title {
            font-size: 36px;
            font-weight: 600;
            letter-spacing: -0.02em;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .section-sub {
            font-size: 16px;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 680px;
            line-height: 1.8;
        }

        .section-heading-wrap {
            margin-bottom: 36px;
        }

        .section-heading-wrap .eyebrow {
            display: inline-block;
            font-size: 14px;
            font-weight: 500;
            color: var(--accent);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        /* Stats metrics */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-base);
        }

        .metric-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--accent);
        }

        .metric-number {
            font-size: 48px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .metric-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 400;
        }

        .metric-unit {
            font-size: 18px;
            font-weight: 600;
            color: var(--accent);
        }

        /* Resource filter */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 36px;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: 24px;
            font-size: 14px;
            font-weight: 500;
            background: #fff;
            border: 1px solid var(--border-line);
            color: var(--text-dark);
            cursor: pointer;
            transition: all var(--transition-fast);
            user-select: none;
        }

        .filter-tag:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

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

        /* Resource cards */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .resource-card {
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .resource-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--accent);
        }

        .resource-cover {
            position: relative;
            height: 200px;
            overflow: hidden;
            background: var(--bg-green-gray);
        }

        .resource-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.5s ease;
        }

        .resource-card:hover .resource-cover img {
            transform: scale(1.04);
        }

        .resource-type-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(26, 46, 42, 0.85);
            color: #fff;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 16px;
            letter-spacing: 0.04em;
            backdrop-filter: blur(4px);
        }

        .resource-body {
            padding: 22px 22px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .resource-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .resource-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        .resource-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            padding-bottom: 14px;
            border-bottom: 1px solid var(--border-line);
        }

        .resource-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .resource-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

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

        /* Deep content section */
        .deep-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }

        .deep-text p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-dark);
            margin-bottom: 20px;
        }

        .deep-text p:first-of-type::first-letter {
            font-size: 52px;
            font-weight: 700;
            color: var(--accent);
            float: left;
            line-height: 1;
            margin-right: 10px;
            margin-top: 4px;
        }

        .deep-visual {
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
        }

        .deep-visual h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .bar-chart {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .bar-item {
            display: grid;
            grid-template-columns: 120px 1fr 40px;
            align-items: center;
            gap: 12px;
        }

        .bar-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .bar-track {
            height: 10px;
            background: var(--bg-green-gray);
            border-radius: 5px;
            overflow: hidden;
        }

        .bar-fill {
            height: 100%;
            border-radius: 5px;
            transition: width 0.6s ease;
        }

        .bar-fill.accent {
            background: var(--accent);
        }

        .bar-fill.primary {
            background: var(--primary);
        }

        .bar-value {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            text-align: right;
        }

        /* Steps process */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .step-card {
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            position: relative;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }

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

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 18px;
            margin-bottom: 16px;
        }

        .step-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
        }

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

        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: var(--accent);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 18px;
            font-weight: 500;
            color: var(--primary);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-icon {
            flex-shrink: 0;
            font-size: 24px;
            color: var(--accent);
            font-weight: 400;
            transition: transform var(--transition-fast);
            line-height: 1;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            font-size: 16px;
            color: var(--text-dark);
            line-height: 1.8;
        }

        /* CTA form */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-green-gray) 0%, #e8ece8 100%);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            border: 1px solid var(--border-line);
        }

        .cta-info h2 {
            font-size: 30px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .cta-info p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 0;
        }

        .cta-form .form-field {
            margin-bottom: 16px;
        }

        .cta-form label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .cta-form input,
        .cta-form textarea,
        .cta-form select {
            width: 100%;
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: 4px;
            padding: 12px 16px;
            font-family: var(--font-sans);
            font-size: 15px;
            color: var(--text-dark);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            min-height: 48px;
        }

        .cta-form textarea {
            min-height: 100px;
            resize: vertical;
        }

        .cta-form input:focus,
        .cta-form textarea:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.25);
            outline: none;
        }

        .form-submit-btn {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 14px 40px;
            border-radius: var(--radius-btn);
            font-size: 16px;
            font-weight: 500;
            font-family: var(--font-sans);
            cursor: pointer;
            transition: all var(--transition-fast);
            width: 100%;
        }

        .form-submit-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(26, 46, 42, 0.25);
        }

        /* Footer */
        .site-footer {
            background: var(--primary);
            color: var(--text-footer);
            padding: 56px 0 28px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.2fr 1.2fr;
            gap: 36px;
            margin-bottom: 40px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand .logo-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-footer);
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            color: var(--text-footer);
            font-size: 14px;
            margin-bottom: 10px;
            transition: color var(--transition-fast);
        }

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

        .footer-col p {
            font-size: 14px;
            margin-bottom: 8px;
            color: var(--text-footer);
            line-height: 1.7;
        }

        .footer-bottom {
            border-top: 1px solid rgba(213, 220, 217, 0.2);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(213, 220, 217, 0.7);
        }

        .footer-legal {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-legal a {
            color: rgba(213, 220, 217, 0.7);
            font-size: 13px;
        }

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

        /* Fade-up animation */
        .fade-up {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .container-custom {
                padding-left: 32px;
                padding-right: 32px;
            }
            .main-nav {
                gap: 20px;
            }
            .main-nav a {
                font-size: 14px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .deep-content {
                grid-template-columns: 1fr;
            }
            .cta-section {
                grid-template-columns: 1fr;
                padding: 32px 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .container-custom {
                padding-left: 20px;
                padding-right: 20px;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background-color: var(--bg-warm);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                border-bottom: 1px solid var(--border-line);
                box-shadow: 0 8px 24px rgba(26, 46, 42, 0.08);
                padding: 12px 20px 20px;
                max-height: calc(100vh - var(--nav-height));
                overflow-y: auto;
            }
            .main-nav.is-open {
                display: flex;
            }
            .main-nav a {
                display: block;
                width: 100%;
                padding: 12px 0;
                border-bottom: 1px solid var(--border-line);
                font-size: 16px;
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .main-nav a.active::after {
                display: none;
            }
            .main-nav a.active {
                background: rgba(201, 169, 110, 0.08);
                padding-left: 12px;
                border-radius: 4px;
            }
            .banner-content h1 {
                font-size: 32px;
            }
            .banner-sub {
                font-size: 15px;
            }
            .section-title {
                font-size: 26px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .metric-number {
                font-size: 28px;
            }
            .resource-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .filter-bar {
                gap: 8px;
            }
            .filter-tag {
                padding: 6px 14px;
                font-size: 13px;
            }
            .cta-section {
                padding: 24px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-legal {
                justify-content: center;
            }
            .banner-actions {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
            }
            .metric-card {
                padding: 18px 12px;
            }
            .metric-number {
                font-size: 24px;
            }
            .resource-cover {
                height: 160px;
            }
            .banner-content h1 {
                font-size: 26px;
            }
            .section {
                padding: 48px 0;
            }
        }