/* roulang page: index */
:root {
            --primary: #1F3A34;
            --primary-dark: #162A26;
            --primary-light: rgba(31, 58, 52, 0.06);
            --accent: #B88A5C;
            --accent-hover: #A06A42;
            --accent-light: rgba(184, 138, 92, 0.12);
            --bg: #F7F5F1;
            --surface: #FFFFFF;
            --text-primary: #2B2825;
            --text-secondary: #5A554F;
            --text-on-dark: rgba(255, 255, 255, 0.85);
            --border-color: rgba(31, 58, 52, 0.10);
            --border-strong: rgba(31, 58, 52, 0.15);
            --success: #3D7A5E;
            --warning: #A65A3A;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-badge: 4px;
            --shadow-card: 0 2px 10px rgba(31, 58, 52, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(31, 58, 52, 0.10);
            --shadow-btn: 0 4px 12px rgba(184, 138, 92, 0.30);
            --spacing-section: 80px;
            --spacing-section-mobile: 52px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --transition: all 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        .section-title {
            font-size: 26px;
            font-weight: 650;
            line-height: 1.4;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 720px;
        }

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

        .section-head .section-title {
            margin-bottom: 10px;
        }

        .badge-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            border: 1px solid rgba(184, 138, 92, 0.25);
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            letter-spacing: 0.02em;
            line-height: 1.7;
        }

        .btn {
            display: inline-block;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-family);
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-align: center;
            line-height: 1.6;
        }

        .btn:focus {
            outline: 2px solid rgba(184, 138, 92, 0.50);
            outline-offset: 2px;
        }

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

        .btn-primary:hover {
            background: var(--accent-hover);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: var(--shadow-btn);
            text-decoration: none;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

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

        .btn-secondary:hover {
            background: var(--primary-light);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            text-decoration: none;
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.7);
            color: #FFFFFF;
        }

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

        .btn-link {
            background: none;
            border: none;
            padding: 6px 0;
            color: var(--accent);
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-link:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }

        .btn-link .arrow {
            display: inline-block;
            transition: transform 0.2s ease;
            margin-left: 4px;
        }

        .btn-link:hover .arrow {
            transform: translateX(3px);
        }

        /* Header / Magazine Masthead */
        .site-header {
            background: var(--surface);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 6px rgba(31, 58, 52, 0.05);
        }

        .masthead-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0;
        }

        .masthead-brand {
            display: flex;
            align-items: baseline;
            gap: 10px;
        }

        .masthead-brand .brand-name {
            font-size: 30px;
            font-weight: 750;
            color: var(--primary);
            letter-spacing: 0.02em;
            line-height: 1.2;
        }

        .masthead-brand .brand-tagline {
            font-size: 13px;
            color: var(--text-secondary);
            letter-spacing: 0.05em;
        }

        .masthead-divider {
            border: none;
            border-top: 1px solid var(--border-strong);
            margin: 0;
        }

        .channel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            gap: 16px;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .channel-nav li {
            margin: 0;
        }

        .channel-nav a {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
            padding: 6px 4px;
            border-bottom: 2px solid transparent;
            transition: var(--transition);
            text-decoration: none;
            letter-spacing: 0.02em;
        }

        .channel-nav a:hover {
            color: var(--primary);
            border-bottom-color: var(--accent);
            text-decoration: none;
        }

        .channel-nav a.active {
            color: var(--primary);
            font-weight: 700;
            border-bottom-color: var(--accent);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-search {
            position: relative;
        }

        .header-search input {
            font-family: var(--font-family);
            font-size: 13px;
            padding: 8px 14px 8px 36px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            background: var(--bg);
            color: var(--text-primary);
            width: 180px;
            transition: var(--transition);
            line-height: 1.6;
        }

        .header-search input:focus {
            outline: none;
            border-color: var(--accent);
            background: var(--surface);
            width: 220px;
        }

        .header-search .search-icon {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-secondary);
            font-size: 13px;
            pointer-events: none;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--primary);
            cursor: pointer;
            padding: 6px 8px;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            line-height: 1;
        }

        .hamburger:hover {
            background: var(--primary-light);
        }

        .mobile-nav {
            display: none;
            background: var(--surface);
            border-top: 1px solid var(--border-color);
            padding: 12px 0;
        }

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

        .mobile-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .mobile-nav li {
            border-bottom: 1px solid var(--border-color);
        }

        .mobile-nav li:last-child {
            border-bottom: none;
        }

        .mobile-nav a {
            display: block;
            padding: 12px 24px;
            font-size: 15px;
            color: var(--text-primary);
            text-decoration: none;
            transition: var(--transition);
        }

        .mobile-nav a:hover {
            background: var(--primary-light);
            color: var(--primary);
            text-decoration: none;
        }

        .mobile-nav a.active {
            color: var(--primary);
            font-weight: 700;
            background: var(--primary-light);
            border-left: 3px solid var(--accent);
        }

        /* Hero */
        .hero-section {
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            min-height: 65vh;
            display: flex;
            align-items: center;
            padding: 60px 0;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(31, 58, 52, 0.75);
        }

        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 680px;
        }

        .hero-content h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.3;
            color: #FFFFFF;
            letter-spacing: 0.01em;
            margin-bottom: 18px;
        }

        .hero-content .hero-desc {
            font-size: 17px;
            line-height: 1.85;
            color: var(--text-on-dark);
            margin-bottom: 28px;
            max-width: 580px;
        }

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

        .hero-stats {
            display: flex;
            gap: 28px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        .hero-stat {
            text-align: left;
        }

        .hero-stat .stat-number {
            font-size: 26px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
        }

        .hero-stat .stat-label {
            font-size: 13px;
            color: var(--text-on-dark);
            letter-spacing: 0.03em;
        }

        /* Brand Intro */
        .brand-intro-section {
            background: var(--surface);
        }

        .brand-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .brand-intro-text h2 {
            font-size: 24px;
            font-weight: 650;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .brand-intro-text p {
            font-size: 15px;
            line-height: 1.95;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .brand-intro-image img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }

        /* Features */
        .features-section {
            background: var(--bg);
        }

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

        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 26px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 138, 92, 0.3);
            transform: translateY(-3px);
        }

        .feature-card .feature-icon {
            font-size: 28px;
            color: var(--accent);
            margin-bottom: 14px;
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--accent-light);
            border-radius: 8px;
        }

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

        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 14px;
            flex-grow: 1;
        }

        .feature-card .btn-link {
            font-size: 13px;
            align-self: flex-start;
        }

        /* Data / KPI */
        .data-section {
            background: var(--primary);
            padding: 56px 0;
        }

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

        .data-item {
            text-align: center;
            padding: 20px;
        }

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

        .data-item .data-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            letter-spacing: 0.03em;
            margin-top: 6px;
        }

        .data-item .data-desc {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 4px;
            line-height: 1.6;
        }

        /* Deep Content */
        .deep-content-section {
            background: var(--surface);
        }

        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: start;
        }

        .deep-content-text h2 {
            font-size: 22px;
            font-weight: 650;
            color: var(--primary);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .deep-content-text h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            margin-top: 22px;
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .deep-content-text p {
            font-size: 15px;
            line-height: 1.95;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .deep-content-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            margin-bottom: 16px;
        }

        /* Scenarios */
        .scenarios-section {
            background: var(--bg);
        }

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

        .scenario-card {
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 138, 92, 0.3);
        }

        .scenario-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }

        .scenario-card .scenario-body {
            padding: 22px 24px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

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

        .scenario-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 14px;
            flex-grow: 1;
        }

        .scenario-card .badge-tag {
            align-self: flex-start;
        }

        /* Visual Showcase */
        .showcase-section {
            background: var(--surface);
        }

        .showcase-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 24px;
        }

        .showcase-main {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .showcase-main img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            border-radius: 0;
        }

        .showcase-main .showcase-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 30px;
            background: linear-gradient(to top, rgba(31, 58, 52, 0.9), transparent);
            color: #FFFFFF;
        }

        .showcase-main .showcase-overlay h3 {
            font-size: 20px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 8px;
        }

        .showcase-main .showcase-overlay p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin: 0;
        }

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

        .showcase-side-item {
            background: var(--bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 14px;
            transition: var(--transition);
        }

        .showcase-side-item:hover {
            border-color: rgba(184, 138, 92, 0.3);
            box-shadow: var(--shadow-card-hover);
        }

        .showcase-side-item .side-icon {
            width: 40px;
            height: 40px;
            background: var(--accent-light);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 18px;
            flex-shrink: 0;
        }

        .showcase-side-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 4px;
            line-height: 1.5;
        }

        .showcase-side-item p {
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* Cases */
        .cases-section {
            background: var(--bg);
        }

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

        .case-card {
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .case-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 138, 92, 0.3);
            transform: translateY(-3px);
        }

        .case-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            border-radius: 0;
        }

        .case-card .case-body {
            padding: 22px 24px;
        }

        .case-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .case-card .case-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .case-card .case-meta span {
            font-size: 12px;
            color: var(--text-secondary);
        }

        .case-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 14px;
        }

        .case-card .case-result {
            background: var(--accent-light);
            border-radius: var(--radius-badge);
            padding: 8px 14px;
            font-size: 13px;
            font-weight: 600;
            color: var(--success);
            display: inline-block;
            margin-bottom: 14px;
        }

        /* Pricing */
        .pricing-section {
            background: var(--surface);
        }

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

        .pricing-card {
            background: var(--bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            position: relative;
            display: flex;
            flex-direction: column;
        }

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

        .pricing-card.featured {
            background: var(--primary);
            border-color: var(--primary);
            color: #FFFFFF;
        }

        .pricing-card.featured h3 {
            color: #FFFFFF;
        }

        .pricing-card.featured .price-number {
            color: var(--accent);
        }

        .pricing-card.featured .price-list li {
            color: rgba(255, 255, 255, 0.8);
        }

        .pricing-card .badge-tag {
            position: absolute;
            top: 18px;
            right: 18px;
        }

        .pricing-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.5;
        }

        .pricing-card .price-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 16px;
        }

        .pricing-card .price-list {
            list-style: none;
            margin: 0 0 20px 0;
            padding: 0;
            flex-grow: 1;
        }

        .pricing-card .price-list li {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            padding: 5px 0;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .pricing-card .price-list li::before {
            content: '✓';
            color: var(--accent);
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .pricing-card.featured .price-list li::before {
            color: var(--accent);
        }

        /* News */
        .news-section {
            background: var(--bg);
        }

        .news-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 32px;
        }

        .news-main-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .news-item {
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 18px 22px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .news-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 138, 92, 0.3);
        }

        .news-item .news-date {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
            margin-bottom: 6px;
            display: block;
        }

        .news-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .news-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .news-sidebar {
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 22px;
            box-shadow: var(--shadow-card);
        }

        .news-sidebar h4 {
            font-size: 15px;
            font-weight: 650;
            color: var(--primary);
            margin-bottom: 14px;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 8px;
        }

        .news-sidebar ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .news-sidebar li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border-color);
            font-size: 13px;
        }

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

        .news-sidebar li a {
            color: var(--text-primary);
            text-decoration: none;
            transition: var(--transition);
            line-height: 1.6;
        }

        .news-sidebar li a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        /* FAQ */
        .faq-section {
            background: var(--surface);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 840px;
        }

        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(184, 138, 92, 0.4);
        }

        .faq-item summary {
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            line-height: 1.6;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary .faq-icon {
            color: var(--accent);
            font-size: 18px;
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }

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

        .faq-item .faq-answer {
            padding: 0 22px 20px 22px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
        }

        .faq-item[open] {
            border-color: rgba(184, 138, 92, 0.35);
        }

        /* CTA */
        .cta-section {
            background: var(--primary);
            border-radius: 12px;
            margin: 0 24px;
            padding: 56px 32px;
            text-align: center;
            color: #FFFFFF;
        }

        .cta-section h2 {
            font-size: 26px;
            font-weight: 650;
            color: #FFFFFF;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .cta-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            line-height: 1.8;
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
            margin-top: 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand .footer-logo {
            font-size: 24px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.6);
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

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

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

        .footer-col a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            font-size: 13px;
            transition: var(--transition);
            line-height: 1.7;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.8;
            text-align: center;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
        }

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

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

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

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

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

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

            .news-layout {
                grid-template-columns: 1fr;
            }

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

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

            .pricing-card.featured {
                grid-column: span 2;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

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

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

            .masthead-brand .brand-name {
                font-size: 24px;
            }

            .masthead-brand .brand-tagline {
                font-size: 11px;
            }

            .channel-row {
                display: none;
            }

            .hamburger {
                display: block;
            }

            .header-search {
                display: none;
            }

            .hero-section {
                min-height: 55vh;
                padding: 40px 0;
            }

            .hero-content h1 {
                font-size: 24px;
            }

            .hero-content .hero-desc {
                font-size: 15px;
            }

            .hero-stats {
                gap: 16px;
            }

            .hero-stat .stat-number {
                font-size: 22px;
            }

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

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

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

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

            .pricing-card.featured {
                grid-column: auto;
            }

            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .data-item .data-number {
                font-size: 24px;
            }

            .cta-section {
                margin: 0 16px;
                padding: 36px 20px;
            }

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .deep-content-image img {
                height: 250px;
            }

            .showcase-main img {
                height: 250px;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 22px;
            }

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

            .hero-cta-group .btn {
                width: 100%;
            }

            .brand-intro-image img {
                height: 220px;
            }

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

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

            .faq-item summary {
                font-size: 14px;
                padding: 14px 16px;
            }

            .faq-item .faq-answer {
                padding: 0 16px 16px 16px;
                font-size: 13px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1F3A34;
            --primary-dark: #162A26;
            --primary-light: rgba(31, 58, 52, 0.06);
            --accent: #B88A5C;
            --accent-hover: #A06A42;
            --accent-light: rgba(184, 138, 92, 0.12);
            --bg: #F7F5F1;
            --surface: #FFFFFF;
            --text-primary: #2B2825;
            --text-secondary: #5A554F;
            --text-on-dark: rgba(255, 255, 255, 0.85);
            --border-color: rgba(31, 58, 52, 0.10);
            --border-strong: rgba(31, 58, 52, 0.15);
            --success: #3D7A5E;
            --warning: #A65A3A;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-badge: 4px;
            --shadow-card: 0 2px 10px rgba(31, 58, 52, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(31, 58, 52, 0.10);
            --shadow-btn: 0 4px 12px rgba(184, 138, 92, 0.30);
            --spacing-section: 80px;
            --spacing-section-mobile: 52px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --transition: all 0.25s ease;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--text-primary);
            line-height: 1.85;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--accent); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent-hover); text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-card); }
        .container { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
        .section { padding: var(--spacing-section) 0; }
        .section-title {
            font-size: 26px;
            font-weight: 650;
            line-height: 1.4;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 720px;
        }
        .section-head { margin-bottom: 40px; }
        .section-head .section-title { margin-bottom: 10px; }
        .badge-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            border: 1px solid rgba(184, 138, 92, 0.25);
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            letter-spacing: 0.02em;
            line-height: 1.7;
        }
        .btn {
            display: inline-block;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-family);
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-align: center;
            line-height: 1.6;
        }
        .btn:focus { outline: 2px solid rgba(184, 138, 92, 0.50); outline-offset: 2px; }
        .btn-primary { background: var(--accent); color: #FFFFFF; }
        .btn-primary:hover {
            background: var(--accent-hover);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: var(--shadow-btn);
            text-decoration: none;
        }
        .btn-primary:active { transform: translateY(0); box-shadow: none; }
        .btn-secondary { background: transparent; border: 1px solid var(--primary); color: var(--primary); }
        .btn-secondary:hover {
            background: var(--primary-light);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            text-decoration: none;
        }
        .btn-outline-light { background: transparent; border: 1px solid rgba(255, 255, 255, 0.7); color: #FFFFFF; }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #FFFFFF;
            color: #FFFFFF;
            text-decoration: none;
        }

        /* Header / Magazine Masthead */
        .site-header {
            background: var(--surface);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 6px rgba(31, 58, 52, 0.05);
        }
        .masthead-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 12px;
        }
        .masthead-brand { display: flex; align-items: baseline; gap: 12px; }
        .brand-logo {
            font-size: 30px;
            font-weight: 750;
            color: var(--primary);
            letter-spacing: 0.02em;
            line-height: 1.2;
        }
        .brand-logo:hover { color: var(--primary-dark); text-decoration: none; }
        .brand-sub {
            font-size: 13px;
            color: var(--text-secondary);
            letter-spacing: 0.06em;
            font-weight: 400;
        }
        .nav-toggle {
            background: none;
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-btn);
            color: var(--primary);
            font-size: 20px;
            width: 44px;
            height: 44px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .nav-toggle:hover { background: var(--primary-light); }
        .masthead-divider {
            height: 1px;
            background: var(--border-strong);
            margin: 4px 0 0;
        }
        .channel-nav-wrap { padding: 8px 0 4px; }
        .channel-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 28px;
            flex-wrap: wrap;
        }
        .channel-nav li { margin: 0; }
        .channel-nav a {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
            letter-spacing: 0.02em;
            padding: 4px 0;
            display: inline-block;
            border-bottom: 2px solid transparent;
            transition: var(--transition);
            text-decoration: none;
        }
        .channel-nav a:hover {
            color: var(--primary);
            border-bottom-color: var(--accent);
            text-decoration: none;
        }
        .channel-nav a.active {
            color: var(--primary);
            font-weight: 700;
            border-bottom-color: var(--accent);
        }
        .mobile-nav {
            display: none;
            padding: 8px 0 16px;
        }
        .mobile-nav.open { display: block; }
        .channel-nav-mobile {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .channel-nav-mobile li { margin: 0; border-bottom: 1px solid var(--border-color); }
        .channel-nav-mobile a {
            display: block;
            padding: 12px 4px;
            font-size: 15px;
            color: var(--text-primary);
            font-weight: 500;
            text-decoration: none;
            transition: var(--transition);
        }
        .channel-nav-mobile a:hover { color: var(--primary); background: var(--primary-light); text-decoration: none; }
        .channel-nav-mobile a.active { color: var(--primary); font-weight: 700; }

        /* Banner */
        .page-banner {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(31, 58, 52, 0.78);
        }
        .banner-content {
            position: relative;
            z-index: 1;
            padding: 80px 0;
            max-width: 800px;
        }
        .banner-tag {
            display: inline-block;
            background: rgba(184, 138, 92, 0.25);
            color: #E8C9A8;
            border: 1px solid rgba(184, 138, 92, 0.5);
            border-radius: var(--radius-badge);
            padding: 4px 14px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .banner-content h1 {
            font-size: 34px;
            font-weight: 700;
            color: #FFFFFF;
            line-height: 1.35;
            margin: 0 0 16px;
            letter-spacing: 0.01em;
        }
        .banner-content .banner-sub {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 650px;
        }

        /* Intro Section */
        .intro-section { background: var(--surface); border-bottom: 1px solid var(--border-color); }
        .intro-card {
            background: var(--bg);
            border-radius: var(--radius-card);
            padding: 32px;
            border: 1px solid var(--border-color);
        }
        .intro-card p {
            margin: 0 0 16px;
            font-size: 16px;
            line-height: 1.9;
        }
        .intro-card p:last-child { margin-bottom: 0; }
        .intro-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 24px;
        }
        .stat-item {
            text-align: center;
            background: var(--surface);
            border-radius: var(--radius-card);
            padding: 20px;
            border: 1px solid var(--border-color);
        }
        .stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* Scene Sections */
        .scene-section { background: var(--bg); }
        .scene-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 56px;
        }
        .scene-block:last-child { margin-bottom: 0; }
        .scene-block.reverse { direction: rtl; }
        .scene-block.reverse > * { direction: ltr; }
        .scene-text h2 {
            font-size: 22px;
            font-weight: 650;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 14px;
        }
        .scene-text p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .scene-text p:last-child { margin-bottom: 0; }
        .scene-text .badge-tag { margin-bottom: 10px; }
        .scene-image img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }
        .scene-list {
            list-style: none;
            margin: 12px 0 0;
            padding: 0;
        }
        .scene-list li {
            padding: 6px 0 6px 28px;
            position: relative;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .scene-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 6px;
            color: var(--accent);
            font-weight: 700;
        }

        /* Steps Section */
        .steps-section { background: var(--surface); border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 24px;
        }
        .step-card {
            background: var(--bg);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            border: 1px solid var(--border-color);
            position: relative;
            transition: var(--transition);
        }
        .step-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 138, 92, 0.3);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .step-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .step-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* Scenarios Cards */
        .scenarios-section { background: var(--bg); }
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .scenario-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            padding: 20px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(184, 138, 92, 0.25);
        }
        .scenario-card .icon-circle {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 18px;
            margin-bottom: 12px;
        }
        .scenario-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .scenario-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* FAQ */
        .faq-section { background: var(--surface); border-top: 1px solid var(--border-color); }
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(184, 138, 92, 0.3); }
        .faq-item summary {
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary .faq-icon {
            font-size: 14px;
            color: var(--accent);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item[open] summary .faq-icon { transform: rotate(45deg); }
        .faq-item .faq-answer {
            padding: 0 20px 16px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .faq-item[open] { border-color: rgba(184, 138, 92, 0.4); box-shadow: var(--shadow-card); }

        /* CTA */
        .cta-section {
            background: var(--primary);
            border-radius: var(--radius-card);
            margin: var(--spacing-section) 0;
            padding: 56px 36px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(184, 138, 92, 0.12);
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -50%;
            left: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(184, 138, 92, 0.08);
        }
        .cta-container {
            position: relative;
            z-index: 1;
            max-width: 650px;
            margin: 0 auto;
        }
        .cta-container h2 {
            font-size: 26px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .cta-container p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            margin-bottom: 24px;
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .footer-logo {
            font-size: 24px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            max-width: 280px;
            margin: 0;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-col ul a:hover { color: var(--accent); text-decoration: none; }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            margin: 0 0 6px;
            line-height: 1.6;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 12px;
            text-decoration: none;
        }
        .footer-bottom a:hover { color: var(--accent); }

        /* Custom overrides Foundation */
        .foundation-mq { display: block; }

        /* Responsive */
        @media (max-width: 1024px) {
            .scene-block { grid-template-columns: 1fr; gap: 20px; }
            .scene-block.reverse { direction: ltr; }
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
            .scenario-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .intro-stats { grid-template-columns: repeat(3, 1fr); }
        }
        @media (max-width: 640px) {
            .container { padding-left: 16px; padding-right: 16px; }
            .section { padding: var(--spacing-section-mobile) 0; }
            .masthead-row { padding: 12px 0 8px; }
            .brand-logo { font-size: 24px; }
            .brand-sub { display: none; }
            .nav-toggle { display: flex; }
            .channel-nav-wrap { display: none; }
            .mobile-nav { display: none; padding: 4px 0 12px; }
            .mobile-nav.open { display: block; }
            .page-banner { min-height: 340px; }
            .banner-content { padding: 56px 0; }
            .banner-content h1 { font-size: 24px; }
            .banner-content .banner-sub { font-size: 15px; }
            .scene-image img { height: 200px; }
            .steps-grid { grid-template-columns: 1fr; }
            .scenario-grid { grid-template-columns: 1fr; }
            .intro-stats { grid-template-columns: 1fr; gap: 12px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .cta-section { padding: 36px 20px; margin: var(--spacing-section-mobile) 0; }
            .cta-container h2 { font-size: 22px; }
            .btn { padding: 10px 18px; font-size: 14px; min-height: 44px; }
        }
        @media (min-width: 641px) {
            .nav-toggle { display: none; }
        }

/* roulang page: category1 */
:root {
            --primary: #1F3A34;
            --primary-dark: #162A26;
            --primary-light: rgba(31, 58, 52, 0.06);
            --accent: #B88A5C;
            --accent-hover: #A06A42;
            --accent-light: rgba(184, 138, 92, 0.12);
            --bg: #F7F5F1;
            --surface: #FFFFFF;
            --text-primary: #2B2825;
            --text-secondary: #5A554F;
            --text-on-dark: rgba(255, 255, 255, 0.85);
            --border-color: rgba(31, 58, 52, 0.10);
            --border-strong: rgba(31, 58, 52, 0.15);
            --success: #3D7A5E;
            --warning: #A65A3A;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-badge: 4px;
            --shadow-card: 0 2px 10px rgba(31, 58, 52, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(31, 58, 52, 0.10);
            --shadow-btn: 0 4px 12px rgba(184, 138, 92, 0.30);
            --spacing-section: 80px;
            --spacing-section-mobile: 52px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --transition: all 0.25s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        .section-title {
            font-size: 26px;
            font-weight: 650;
            line-height: 1.4;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 720px;
        }
        .section-head {
            margin-bottom: 40px;
        }
        .section-head .section-title {
            margin-bottom: 10px;
        }

        .badge-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            border: 1px solid rgba(184, 138, 92, 0.25);
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            letter-spacing: 0.02em;
            line-height: 1.7;
        }

        .btn {
            display: inline-block;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-family);
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-align: center;
            line-height: 1.6;
        }
        .btn:focus {
            outline: 2px solid rgba(184, 138, 92, 0.50);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--accent);
            color: #FFFFFF;
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: var(--shadow-btn);
            text-decoration: none;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-secondary {
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary-light);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            text-decoration: none;
        }
        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.7);
            color: #FFFFFF;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #FFFFFF;
            color: #FFFFFF;
            text-decoration: none;
        }

        .btn-link {
            background: none;
            border: none;
            padding: 6px 0;
            color: var(--accent);
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition);
            font-family: var(--font-family);
        }
        .btn-link:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }
        .btn-link .arrow {
            display: inline-block;
            transition: transform 0.2s ease;
            margin-left: 4px;
        }
        .btn-link:hover .arrow {
            transform: translateX(3px);
        }

        /* Header */
        .site-header {
            background: var(--surface);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 6px rgba(31, 58, 52, 0.05);
        }
        .masthead-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 20px;
            flex-wrap: wrap;
        }
        .masthead-brand {
            display: flex;
            align-items: baseline;
            gap: 10px;
            flex-shrink: 0;
        }
        .masthead-brand a {
            font-size: 28px;
            font-weight: 750;
            color: var(--primary);
            letter-spacing: 0.02em;
            text-decoration: none;
            line-height: 1.2;
        }
        .masthead-brand a:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .masthead-brand .brand-sub {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 400;
            letter-spacing: 0.04em;
        }
        .masthead-divider {
            width: 100%;
            height: 1px;
            background: var(--border-strong);
            margin: 4px 0 8px;
        }
        .channel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-bottom: 10px;
        }
        .channel-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 4px;
        }
        .channel-nav li {
            margin: 0;
        }
        .channel-nav a {
            display: block;
            padding: 6px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-btn);
            transition: var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }
        .channel-nav a:hover {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }
        .channel-nav a.active {
            color: var(--primary);
            font-weight: 700;
            background: var(--primary-light);
        }
        .channel-nav a.active::after {
            content: "";
            display: block;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            margin-top: 3px;
        }
        .masthead-tools {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .masthead-tools a {
            color: var(--text-secondary);
            font-size: 15px;
            text-decoration: none;
            transition: var(--transition);
        }
        .masthead-tools a:hover {
            color: var(--primary);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            padding: 8px 12px;
            cursor: pointer;
            font-size: 18px;
            color: var(--primary);
            font-family: var(--font-family);
        }

        /* Page Banner */
        .page-banner {
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 56px 0;
            position: relative;
        }
        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(31, 58, 52, 0.82);
        }
        .page-banner .container {
            position: relative;
            z-index: 1;
        }
        .page-banner h1 {
            color: #FFFFFF;
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            margin: 0 0 10px;
            letter-spacing: 0.01em;
        }
        .page-banner .banner-sub {
            color: var(--text-on-dark);
            font-size: 16px;
            line-height: 1.8;
            max-width: 600px;
            margin: 0;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            margin: 0 0 16px;
            padding: 0;
            gap: 6px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
        }
        .breadcrumb li {
            margin: 0;
        }
        .breadcrumb li::after {
            content: "/";
            margin-left: 6px;
            color: rgba(255, 255, 255, 0.4);
        }
        .breadcrumb li:last-child::after {
            content: "";
            margin-left: 0;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: #FFFFFF;
            text-decoration: underline;
        }

        /* News List Layout */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 32px;
            align-items: start;
        }
        .news-item {
            display: grid;
            grid-template-columns: 200px 1fr;
            gap: 20px;
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px 22px;
            margin-bottom: 18px;
            transition: var(--transition);
            cursor: default;
        }
        .news-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 138, 92, 0.35);
            transform: translateY(-2px);
        }
        .news-item-img {
            width: 200px;
            height: 138px;
            overflow: hidden;
            border-radius: var(--radius-card);
            flex-shrink: 0;
        }
        .news-item-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-card);
        }
        .news-item-content {
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
            gap: 6px;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }
        .news-meta .news-date {
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.03em;
        }
        .news-meta .news-cat {
            background: var(--accent-light);
            color: var(--accent-hover);
            padding: 2px 8px;
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 600;
        }
        .news-item-content h3 {
            font-size: 17px;
            font-weight: 650;
            line-height: 1.5;
            color: var(--primary);
            margin: 0;
        }
        .news-item-content h3 a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        .news-item-content h3 a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .news-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-readmore {
            align-self: flex-start;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding-top: 4px;
            border-top: 1px solid rgba(184, 138, 92, 0.15);
            margin-top: 4px;
        }
        .news-readmore:hover {
            color: var(--accent-hover);
            text-decoration: none;
        }
        .news-readmore .arrow {
            transition: transform 0.2s ease;
        }
        .news-readmore:hover .arrow {
            transform: translateX(3px);
        }

        /* Pagination */
        .pagination-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin: 32px 0 0;
            flex-wrap: wrap;
        }
        .pagination-wrap a,
        .pagination-wrap .page-current {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 38px;
            height: 38px;
            padding: 0 10px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            border: 1px solid var(--border-color);
            background: var(--surface);
            color: var(--text-secondary);
            text-decoration: none;
            transition: var(--transition);
            font-family: var(--font-family);
        }
        .pagination-wrap a:hover {
            border-color: var(--accent);
            color: var(--accent);
            text-decoration: none;
            background: var(--accent-light);
        }
        .pagination-wrap .page-current {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            font-weight: 600;
        }
        .pagination-wrap .page-dots {
            color: var(--text-secondary);
            font-size: 14px;
            padding: 0 4px;
        }

        /* Sidebar */
        .news-sidebar .sidebar-widget {
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px 22px;
            margin-bottom: 20px;
        }
        .sidebar-widget h4 {
            font-size: 16px;
            font-weight: 650;
            color: var(--primary);
            margin: 0 0 12px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent-light);
        }
        .hot-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .hot-list li {
            padding: 8px 0;
            border-bottom: 1px solid rgba(31, 58, 52, 0.06);
            font-size: 14px;
            line-height: 1.5;
        }
        .hot-list li:last-child {
            border-bottom: none;
        }
        .hot-list a {
            color: var(--text-primary);
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: baseline;
            gap: 8px;
        }
        .hot-list a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .hot-list .hot-index {
            color: var(--accent);
            font-weight: 700;
            font-size: 13px;
            flex-shrink: 0;
            min-width: 20px;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud a {
            display: inline-block;
            background: var(--primary-light);
            color: var(--text-secondary);
            border-radius: var(--radius-badge);
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 500;
            text-decoration: none;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .tag-cloud a:hover {
            background: var(--accent-light);
            color: var(--accent-hover);
            border-color: rgba(184, 138, 92, 0.25);
            text-decoration: none;
        }
        .sidebar-subscribe {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 8px 0 0;
        }

        /* Deep Content Section */
        .deep-content {
            background: var(--surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            padding: 36px 40px;
            margin-top: 40px;
        }
        .deep-content h2 {
            font-size: 22px;
            font-weight: 650;
            color: var(--primary);
            margin: 0 0 16px;
            line-height: 1.4;
        }
        .deep-content h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            margin: 24px 0 10px;
            line-height: 1.5;
        }
        .deep-content p {
            font-size: 15px;
            color: var(--text-primary);
            line-height: 1.9;
            margin: 0 0 14px;
        }
        .deep-content .deep-quote {
            border-left: 3px solid var(--accent);
            background: var(--accent-light);
            padding: 14px 18px;
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            margin: 20px 0;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* CTA Section */
        .cta-section {
            background: var(--primary);
            border-radius: 12px;
            padding: 48px 40px;
            margin: 56px 0 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: "";
            position: absolute;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(184, 138, 92, 0.12);
            right: -80px;
            top: -80px;
            pointer-events: none;
        }
        .cta-section h2 {
            color: #FFFFFF;
            font-size: 24px;
            font-weight: 650;
            margin: 0 0 10px;
            line-height: 1.4;
        }
        .cta-section p {
            color: var(--text-on-dark);
            font-size: 15px;
            line-height: 1.8;
            margin: 0 auto 24px;
            max-width: 560px;
        }
        .cta-section .btn-primary {
            position: relative;
            z-index: 1;
        }

        /* Footer */
        .site-footer {
            background: var(--primary);
            padding: 48px 0 28px;
            color: var(--text-on-dark);
            margin-top: 64px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .footer-logo {
            font-size: 22px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-on-dark);
            margin: 0;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin: 0 0 14px;
            line-height: 1.4;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin: 0 0 8px;
        }
        .footer-col ul li a {
            color: var(--text-on-dark);
            font-size: 13px;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            margin-left: 6px;
        }
        .footer-bottom a:hover {
            color: #FFFFFF;
            text-decoration: underline;
        }
        .footer-bottom p {
            margin: 0;
            line-height: 1.6;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .masthead-brand a {
                font-size: 24px;
            }
            .channel-nav a {
                padding: 5px 10px;
                font-size: 13px;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                grid-row: 1;
            }
        }
        @media (max-width: 768px) {
            .masthead-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .channel-row {
                flex-direction: column;
                align-items: flex-start;
            }
            .nav-toggle {
                display: block;
            }
            .channel-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 2px;
            }
            .channel-nav.open {
                display: flex;
            }
            .channel-nav a {
                padding: 10px 14px;
                font-size: 15px;
                width: 100%;
            }
            .masthead-tools {
                display: none;
            }
            .news-item {
                grid-template-columns: 1fr;
                gap: 14px;
                padding: 16px;
            }
            .news-item-img {
                width: 100%;
                height: 180px;
            }
            .page-banner h1 {
                font-size: 26px;
            }
            .page-banner {
                padding: 40px 0;
            }
            .deep-content {
                padding: 24px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section h2 {
                font-size: 20px;
            }
            .section {
                padding: var(--spacing-section-mobile) 0;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .masthead-brand a {
                font-size: 22px;
            }
            .masthead-brand .brand-sub {
                font-size: 11px;
            }
            .news-item-content h3 {
                font-size: 15px;
            }
            .news-excerpt {
                font-size: 13px;
                -webkit-line-clamp: 3;
            }
            .pagination-wrap a,
            .pagination-wrap .page-current {
                min-width: 32px;
                height: 32px;
                font-size: 12px;
                padding: 0 8px;
            }
            .deep-content h2 {
                font-size: 19px;
            }
            .deep-content p {
                font-size: 14px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1F3A34;
            --primary-dark: #162A26;
            --primary-light: rgba(31, 58, 52, 0.06);
            --accent: #B88A5C;
            --accent-hover: #A06A42;
            --accent-light: rgba(184, 138, 92, 0.12);
            --bg: #F7F5F1;
            --surface: #FFFFFF;
            --text-primary: #2B2825;
            --text-secondary: #5A554F;
            --text-on-dark: rgba(255, 255, 255, 0.85);
            --border-color: rgba(31, 58, 52, 0.10);
            --border-strong: rgba(31, 58, 52, 0.15);
            --success: #3D7A5E;
            --warning: #A65A3A;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-badge: 4px;
            --shadow-card: 0 2px 10px rgba(31, 58, 52, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(31, 58, 52, 0.10);
            --shadow-btn: 0 4px 12px rgba(184, 138, 92, 0.30);
            --spacing-section: 80px;
            --spacing-section-mobile: 52px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --transition: all 0.25s ease;
        }

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

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

        body {
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--text-primary);
            line-height: 1.85;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

        button {
            font-family: var(--font-family);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        .section-title {
            font-size: 26px;
            font-weight: 650;
            line-height: 1.4;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 720px;
        }

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

        .section-head .section-title {
            margin-bottom: 10px;
        }

        .badge-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            border: 1px solid rgba(184, 138, 92, 0.25);
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            letter-spacing: 0.02em;
            line-height: 1.7;
            white-space: nowrap;
        }

        .btn {
            display: inline-block;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-family);
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-align: center;
            line-height: 1.6;
            min-height: 44px;
        }

        .btn:focus {
            outline: 2px solid rgba(184, 138, 92, 0.50);
            outline-offset: 2px;
        }

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

        .btn-primary:hover {
            background: var(--accent-hover);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: var(--shadow-btn);
            text-decoration: none;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

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

        .btn-secondary:hover {
            background: var(--primary-light);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            text-decoration: none;
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.7);
            color: #FFFFFF;
        }

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

        .btn-link {
            background: none;
            border: none;
            padding: 6px 0;
            color: var(--accent);
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition);
            font-family: var(--font-family);
        }

        .btn-link:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }

        .btn-link .arrow {
            display: inline-block;
            transition: transform 0.2s ease;
            margin-left: 4px;
        }

        .btn-link:hover .arrow {
            transform: translateX(3px);
        }

        /* Header / Magazine Masthead */
        .site-header {
            background: var(--surface);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 6px rgba(31, 58, 52, 0.05);
        }

        .masthead-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 10px;
            flex-wrap: wrap;
            gap: 8px;
        }

        .masthead-brand {
            display: flex;
            align-items: baseline;
            gap: 10px;
        }

        .masthead-logo {
            font-size: 30px;
            font-weight: 750;
            color: var(--primary);
            letter-spacing: 0.02em;
            line-height: 1.2;
            text-decoration: none;
        }

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

        .masthead-logo small {
            font-size: 13px;
            font-weight: 400;
            color: var(--text-secondary);
            margin-left: 8px;
            letter-spacing: 0.03em;
        }

        .masthead-divider {
            width: 100%;
            height: 1px;
            background: var(--border-strong);
            margin: 6px 0 10px;
        }

        .masthead-tools {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .masthead-tools .search-box {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            padding: 5px 12px;
        }

        .masthead-tools .search-box input {
            border: none;
            background: transparent;
            outline: none;
            font-family: var(--font-family);
            font-size: 13px;
            color: var(--text-primary);
            width: 150px;
        }

        .masthead-tools .search-box i {
            color: var(--text-secondary);
            font-size: 14px;
        }

        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
            min-height: 44px;
            min-width: 44px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-btn);
            transition: var(--transition);
        }

        .hamburger-btn:hover {
            background: var(--primary-light);
        }

        .channel-nav {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .channel-nav li {
            margin: 0;
        }

        .channel-nav a {
            display: block;
            padding: 10px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            letter-spacing: 0.01em;
            min-height: 44px;
            display: flex;
            align-items: center;
        }

        .channel-nav a:hover {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }

        .channel-nav a.active {
            color: var(--primary);
            font-weight: 650;
            background: var(--primary-light);
            box-shadow: inset 0 -2px 0 var(--accent);
        }

        /* Mobile nav collapse */
        .mobile-nav-collapse {
            display: none;
            padding: 0 0 16px;
        }

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

        .mobile-nav-collapse .channel-nav {
            flex-direction: column;
            align-items: stretch;
        }

        .mobile-nav-collapse .channel-nav a {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border-color);
            border-radius: 0;
        }

        .mobile-nav-collapse .channel-nav a:last-child {
            border-bottom: none;
        }

        /* Page hero / breadcrumb area */
        .page-hero {
            background: var(--primary);
            padding: 48px 0 40px;
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(31, 58, 52, 0.85);
            pointer-events: none;
        }

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

        .page-breadcrumb {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
        }

        .page-breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
            transition: var(--transition);
        }

        .page-breadcrumb a:hover {
            color: #FFFFFF;
            text-decoration: underline;
        }

        .page-breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
        }

        .page-breadcrumb .current {
            color: var(--accent);
            font-weight: 600;
        }

        .page-hero h1 {
            font-size: 34px;
            font-weight: 700;
            color: #FFFFFF;
            line-height: 1.3;
            letter-spacing: 0.01em;
            margin-bottom: 14px;
        }

        .page-hero .page-hero-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.82);
            line-height: 1.8;
            max-width: 640px;
        }

        /* Filter toolbar */
        .filter-toolbar {
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            margin-bottom: 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            box-shadow: var(--shadow-card);
        }

        .filter-group {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .filter-group-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-right: 4px;
            white-space: nowrap;
        }

        .filter-btn {
            background: var(--bg);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
            font-family: var(--font-family);
            min-height: 38px;
            white-space: nowrap;
        }

        .filter-btn:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-light);
        }

        .filter-btn.active {
            background: var(--accent);
            border-color: var(--accent);
            color: #FFFFFF;
            font-weight: 600;
        }

        .filter-btn:focus {
            outline: 2px solid rgba(184, 138, 92, 0.50);
            outline-offset: 2px;
        }

        .sort-select {
            padding: 8px 36px 8px 14px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-primary);
            background: var(--surface);
            font-family: var(--font-family);
            cursor: pointer;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%235A554F' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            min-height: 40px;
        }

        .sort-select:focus {
            outline: 2px solid rgba(184, 138, 92, 0.50);
            outline-offset: 2px;
            border-color: var(--accent);
        }

        .result-count {
            font-size: 13px;
            color: var(--text-secondary);
            white-space: nowrap;
        }

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

        .product-card {
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .product-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(184, 138, 92, 0.35);
        }

        .product-card-img {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        .product-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            transition: transform 0.4s ease;
        }

        .product-card:hover .product-card-img img {
            transform: scale(1.03);
        }

        .product-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #FFFFFF;
            font-size: 11px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.02em;
            z-index: 2;
        }

        .product-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .product-card-body h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--primary);
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }

        .product-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 14px;
            flex: 1;
        }

        .product-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 14px;
        }

        .product-tags .badge-tag {
            font-size: 11px;
            padding: 2px 8px;
        }

        .product-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
            margin-bottom: 10px;
        }

        .product-rating {
            font-size: 13px;
            color: var(--accent);
            font-weight: 600;
        }

        .product-rating i {
            margin-right: 3px;
        }

        .product-scale {
            font-size: 12px;
            color: var(--text-secondary);
        }

        .product-card .btn-link {
            align-self: flex-start;
            font-size: 13px;
        }

        /* Product highlights - dark section */
        .highlights-section {
            background: var(--primary);
            padding: var(--spacing-section) 0;
            position: relative;
        }

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

        .highlights-section .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

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

        .highlight-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            transition: var(--transition);
        }

        .highlight-item:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        .highlight-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--accent-light);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 14px;
        }

        .highlight-item h3 {
            font-size: 16px;
            font-weight: 650;
            color: #FFFFFF;
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .highlight-item p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.75;
            margin: 0;
        }

        /* Selection guide */
        .guide-section .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .guide-card {
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }

        .guide-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 138, 92, 0.3);
            transform: translateY(-2px);
        }

        .guide-step {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 15px;
            margin-bottom: 14px;
        }

        .guide-card h3 {
            font-size: 17px;
            font-weight: 650;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.5;
        }

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

        /* Scenario section */
        .scenario-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .scenario-card {
            display: flex;
            gap: 16px;
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 138, 92, 0.3);
        }

        .scenario-card .scenario-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-card);
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
        }

        .scenario-card h3 {
            font-size: 16px;
            font-weight: 650;
            color: var(--primary);
            margin-bottom: 6px;
            line-height: 1.5;
        }

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

        /* Stats section */
        .stats-section {
            background: var(--surface);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-item {
            padding: 20px 16px;
        }

        .stat-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 4px;
        }

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

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

        /* CTA section */
        .cta-section {
            padding: var(--spacing-section) 0;
        }

        .cta-wrapper {
            background: var(--primary);
            border-radius: 12px;
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-wrapper h2 {
            font-size: 26px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            line-height: 1.4;
            letter-spacing: 0.01em;
        }

        .cta-wrapper p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
            max-width: 520px;
            margin: 0 auto 24px;
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            font-size: 24px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .footer-brand p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            max-width: 260px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 650;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }

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

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

        .footer-col ul a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: var(--transition);
            display: inline-block;
            padding: 2px 0;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.6;
            margin: 0;
        }

        .footer-bottom a {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            transition: var(--transition);
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .product-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

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

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

            .scenario-list {
                grid-template-columns: 1fr;
            }

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

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

            .masthead-row {
                padding: 12px 0 8px;
            }

            .masthead-tools .search-box input {
                width: 100px;
            }
        }

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

            .hamburger-btn {
                display: flex;
            }

            .masthead-tools .search-box {
                display: none;
            }

            .masthead-row {
                padding: 10px 0 6px;
            }

            .masthead-logo {
                font-size: 24px;
            }

            .masthead-logo small {
                display: none;
            }

            .masthead-divider {
                display: none;
            }

            .desktop-channel-nav {
                display: none;
            }

            .mobile-nav-collapse {
                display: block;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.35s ease, padding 0.35s ease;
            }

            .mobile-nav-collapse.open {
                max-height: 500px;
                padding: 0 0 16px;
            }

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

            .filter-toolbar {
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 18px;
                gap: 12px;
            }

            .filter-group {
                width: 100%;
            }

            .sort-select {
                width: 100%;
            }

            .result-count {
                width: 100%;
                text-align: right;
            }

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

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

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

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

            .cta-wrapper {
                padding: 32px 20px;
            }

            .cta-wrapper h2 {
                font-size: 22px;
            }

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

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

            .page-hero {
                padding: 32px 0 28px;
            }

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

            .page-hero .page-hero-desc {
                font-size: 14px;
            }

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

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

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

            .product-card-body h3 {
                font-size: 16px;
            }

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

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

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1F3A34;
            --primary-dark: #162A26;
            --primary-light: rgba(31, 58, 52, 0.06);
            --accent: #B88A5C;
            --accent-hover: #A06A42;
            --accent-light: rgba(184, 138, 92, 0.12);
            --bg: #F7F5F1;
            --surface: #FFFFFF;
            --text-primary: #2B2825;
            --text-secondary: #5A554F;
            --text-on-dark: rgba(255, 255, 255, 0.85);
            --border-color: rgba(31, 58, 52, 0.10);
            --border-strong: rgba(31, 58, 52, 0.15);
            --success: #3D7A5E;
            --warning: #A65A3A;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-badge: 4px;
            --shadow-card: 0 2px 10px rgba(31, 58, 52, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(31, 58, 52, 0.10);
            --shadow-btn: 0 4px 12px rgba(184, 138, 92, 0.30);
            --spacing-section: 80px;
            --spacing-section-mobile: 52px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --transition: all 0.25s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        .section-title {
            font-size: 26px;
            font-weight: 650;
            line-height: 1.4;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 720px;
        }

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

        .section-head .section-title {
            margin-bottom: 10px;
        }

        .badge-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            border: 1px solid rgba(184, 138, 92, 0.25);
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            letter-spacing: 0.02em;
            line-height: 1.7;
        }

        .btn {
            display: inline-block;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-family);
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-align: center;
            line-height: 1.6;
            min-height: 44px;
        }

        .btn:focus {
            outline: 2px solid rgba(184, 138, 92, 0.50);
            outline-offset: 2px;
        }

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

        .btn-primary:hover {
            background: var(--accent-hover);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: var(--shadow-btn);
            text-decoration: none;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

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

        .btn-secondary:hover {
            background: var(--primary-light);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            text-decoration: none;
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.7);
            color: #FFFFFF;
        }

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

        .btn-link {
            background: none;
            border: none;
            padding: 6px 0;
            color: var(--accent);
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-link:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }

        .btn-link .arrow {
            display: inline-block;
            transition: transform 0.2s ease;
            margin-left: 4px;
        }

        .btn-link:hover .arrow {
            transform: translateX(3px);
        }

        /* Header */
        .site-header {
            background: var(--surface);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 6px rgba(31, 58, 52, 0.05);
        }

        .masthead-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0;
        }

        .masthead-brand {
            display: flex;
            align-items: baseline;
            gap: 10px;
        }

        .masthead-logo {
            font-size: 28px;
            font-weight: 750;
            color: var(--primary);
            letter-spacing: 0.01em;
            line-height: 1.3;
        }

        .masthead-logo a {
            color: var(--primary);
        }

        .masthead-logo a:hover {
            text-decoration: none;
            color: var(--primary);
        }

        .masthead-tagline {
            font-size: 13px;
            color: var(--text-secondary);
            letter-spacing: 0.05em;
        }

        .header-nav-toggle {
            background: none;
            border: none;
            font-size: 22px;
            color: var(--primary);
            cursor: pointer;
            display: none;
            padding: 8px;
            min-height: 44px;
        }

        .channel-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 4px;
        }

        .channel-nav li {
            margin: 0;
        }

        .channel-nav a {
            display: inline-block;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-btn);
            transition: var(--transition);
            text-decoration: none;
    min-height: 44px;
        }

        .channel-nav a:hover {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }

        .channel-nav a.active {
            color: var(--primary);
            font-weight: 700;
            background: var(--primary-light);
            border-bottom: 2px solid var(--accent);
            border-radius: var(--radius-btn) var(--radius-btn) 0 0;
        }

        .header-divider {
            border: none;
            border-top: 1px solid var(--border-strong);
            margin: 0;
        }

        /* Hero - 内页 */
        .page-hero {
            position: relative;
            background: var(--primary);
            overflow: hidden;
            padding: 64px 0 64px;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(31, 58, 52, 0.82) 0%, rgba(31, 58, 52, 0.65) 100%);
            z-index: 1;
        }

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

        .page-hero-content {
            max-width: 720px;
            padding: 16px 0;
        }

        .page-hero h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.35;
            color: #FFFFFF;
            margin: 0 0 16px 0;
            letter-spacing: 0.01em;
        }

        .page-hero .hero-subtitle {
            font-size: 17px;
            color: var(--text-on-dark);
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 620px;
        }

        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .hero-meta {
            display: flex;
            gap: 16px;
            margin-top: 24px;
            flex-wrap: wrap;
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, 0.8);
            font-size: 13px;
        }

        .hero-meta-item i {
            color: var(--accent);
            font-size: 15px;
        }

        /* 服务条目分组 */
        .service-groups {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .service-card {
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .service-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 138, 92, 0.3);
            transform: translateY(-2px);
        }

        .service-card-header {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 16px;
        }

        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin: 0;
            line-height: 1.5;
        }

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

        .service-points {
            margin: 0;
            padding: 0;
            list-style: none;
            margin-top: auto;
        }

        .service-points li {
            font-size: 14px;
            color: var(--text-primary);
            line-height: 1.7;
            padding: 6px 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .service-points li:last-child {
            border-bottom: none;
        }

        .service-points li::before {
            content: "✓";
            color: var(--accent);
            font-weight: 700;
            flex-shrink: 0;
            font-size: 14px;
        }

        /* 流程步骤条 */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            counter-reset: step;
        }

        .step-item {
            position: relative;
            text-align: center;
            padding: 24px 12px;
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .step-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 138, 92, 0.3);
        }

        .step-number {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            margin: 0 auto 12px;
            transition: var(--transition);
        }

        .step-item:hover .step-number {
            background: var(--accent);
        }

        .step-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin: 0 0 6px 0;
            line-height: 1.5;
        }

        .step-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        .step-arrow {
            position: absolute;
            top: 50%;
            right: -16px;
            transform: translateY(-50%);
            color: var(--accent);
            font-size: 18px;
            z-index: 2;
        }

        /* FAQ */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(184, 138, 92, 0.3);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-family: var(--font-family);
            text-align: left;
            min-height: 44px;
            line-height: 1.6;
        }

        .faq-question:focus {
            outline: 2px solid rgba(184, 138, 92, 0.50);
            outline-offset: 2px;
        }

        .faq-icon {
            flex-shrink: 0;
            margin-left: 12px;
            color: var(--accent);
            font-size: 18px;
            transition: transform 0.3s ease;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
        }

        .faq-answer-content {
            padding: 0 22px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* CTA 收尾区 */
        .cta-section {
            background: var(--primary);
            border-radius: 12px;
            padding: 56px 40px;
            text-align: center;
            margin: 0 24px 80px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            z-index: 0;
        }

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

        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .cta-section p {
            font-size: 16px;
            color: var(--text-on-dark);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 32px;
            margin-top: 0;
        }

        .site-footer a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: var(--transition);
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-brand .footer-logo {
            font-size: 24px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin: 0 0 16px 0;
            line-height: 1.5;
        }

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

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

        .footer-col ul li a {
            font-size: 14px;
            line-height: 1.7;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            justify-content: space-between;
            align-items: center;
        }

        .footer-bottom p {
            font-size: 13px;
            line-height: 1.6;
            margin: 0;
        }

        .footer-bottom a {
            font-size: 13px;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .service-groups {
                grid-template-columns: 1fr;
            }

            .step-arrow {
                display: none;
            }

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

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

        @media (max-width: 768px) {
            .header-nav-toggle {
                display: block;
            }

            .channel-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 8px 0;
                background: var(--surface);
                border-top: 1px solid var(--border-color);
            }

            .channel-nav.open {
                display: flex;
            }

            .channel-nav a {
                padding: 12px 16px;
                border-radius: 0;
                min-height: 44px;
            }

            .channel-nav a.active {
                border-radius: 0;
                border-bottom: none;
                border-left: 3px solid var(--accent);
                background: var(--primary-light);
            }

            .masthead-row {
                flex-wrap: wrap;
            }

            .masthead-brand {
                flex: 1;
            }

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

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

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

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

            .cta-section {
                margin: 0 16px 48px;
                padding: 36px 20px;
            }

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

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

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .masthead-logo {
                font-size: 22px;
            }

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

            .hero-actions {
                flex-direction: column;
            }

            .service-card {
                padding: 20px 16px;
            }

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

/* roulang page: category4 */
:root {
            --primary: #1F3A34;
            --primary-dark: #162A26;
            --primary-light: rgba(31, 58, 52, 0.06);
            --accent: #B88A5C;
            --accent-hover: #A06A42;
            --accent-light: rgba(184, 138, 92, 0.12);
            --bg: #F7F5F1;
            --surface: #FFFFFF;
            --text-primary: #2B2825;
            --text-secondary: #5A554F;
            --text-on-dark: rgba(255, 255, 255, 0.85);
            --border-color: rgba(31, 58, 52, 0.10);
            --border-strong: rgba(31, 58, 52, 0.15);
            --success: #3D7A5E;
            --warning: #A65A3A;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-badge: 4px;
            --shadow-card: 0 2px 10px rgba(31, 58, 52, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(31, 58, 52, 0.10);
            --shadow-btn: 0 4px 12px rgba(184, 138, 92, 0.30);
            --spacing-section: 80px;
            --spacing-section-mobile: 52px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --transition: all 0.25s ease;
        }

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

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

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

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

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

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-family);
        }

        :focus-visible {
            outline: 2px solid rgba(184, 138, 92, 0.55);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        .section-title {
            font-size: 26px;
            font-weight: 650;
            line-height: 1.4;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 36px;
            max-width: 720px;
        }

        .section-head {
            margin-bottom: 44px;
        }

        .section-head .section-title {
            margin-bottom: 12px;
        }

        .section-head .section-subtitle {
            margin-bottom: 0;
        }

        .badge-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            border: 1px solid rgba(184, 138, 92, 0.28);
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            letter-spacing: 0.03em;
            line-height: 1.7;
            white-space: nowrap;
        }

        .badge-outline {
            display: inline-block;
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            letter-spacing: 0.03em;
            line-height: 1.7;
        }

        .btn {
            display: inline-block;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-family);
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-align: center;
            line-height: 1.6;
            letter-spacing: 0.01em;
        }

        .btn:focus-visible {
            outline: 2px solid rgba(184, 138, 92, 0.55);
            outline-offset: 3px;
        }

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

        .btn-primary:hover {
            background: var(--accent-hover);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: var(--shadow-btn);
            text-decoration: none;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

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

        .btn-secondary:hover {
            background: var(--primary-light);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            text-decoration: none;
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.7);
            color: #FFFFFF;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #FFFFFF;
            color: #FFFFFF;
            text-decoration: none;
        }

        .btn-link {
            background: none;
            border: none;
            padding: 6px 0;
            color: var(--accent);
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-link:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }

        .btn-link .arrow {
            display: inline-block;
            transition: transform 0.2s ease;
        }

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

        /* Header / Magazine Masthead */
        .site-header {
            background: var(--surface);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 6px rgba(31, 58, 52, 0.05);
        }

        .masthead-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0 0;
            flex-wrap: wrap;
        }

        .masthead-brand {
            display: flex;
            align-items: baseline;
            gap: 10px;
            flex-shrink: 0;
        }

        .masthead-logo {
            font-size: 30px;
            font-weight: 750;
            color: var(--primary);
            letter-spacing: 0.02em;
            line-height: 1.2;
        }

        .masthead-logo a {
            color: var(--primary);
            text-decoration: none;
        }

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

        .masthead-tagline {
            font-size: 12px;
            color: var(--text-secondary);
            letter-spacing: 0.06em;
            font-weight: 400;
            white-space: nowrap;
        }

        .masthead-divider {
            width: 100%;
            height: 1px;
            background: var(--border-strong);
            margin: 12px 0 0;
        }

        .masthead-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 6px 0 12px;
            gap: 16px;
        }

        .channel-nav {
            display: flex;
            list-style: none;
            gap: 22px;
            flex-wrap: wrap;
            margin: 0;
            padding: 0;
        }

        .channel-nav a {
            font-size: 14.5px;
            color: var(--text-secondary);
            font-weight: 500;
            letter-spacing: 0.02em;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
            text-decoration: none;
            display: inline-block;
        }

        .channel-nav a:hover {
            color: var(--primary);
            border-bottom-color: var(--accent);
            text-decoration: none;
        }

        .channel-nav a.active {
            color: var(--primary);
            font-weight: 650;
            border-bottom-color: var(--accent);
        }

        .masthead-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-style-box {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            padding: 6px 12px;
            gap: 6px;
            cursor: text;
            transition: var(--transition);
            min-width: 140px;
        }

        .search-style-box:hover {
            border-color: var(--border-strong);
        }

        .search-style-box i {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .search-style-box span {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            color: var(--primary);
            font-size: 22px;
            cursor: pointer;
            padding: 6px;
            border-radius: 4px;
            transition: var(--transition);
        }

        .hamburger-btn:hover {
            background: var(--primary-light);
        }

        .mobile-nav {
            display: none;
            background: var(--surface);
            border-top: 1px solid var(--border-color);
            padding: 10px 0;
        }

        .mobile-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .mobile-nav a {
            display: block;
            padding: 10px 0;
            font-size: 15px;
            color: var(--text-primary);
            font-weight: 500;
            border-bottom: 1px solid var(--border-color);
            text-decoration: none;
            transition: var(--transition);
        }

        .mobile-nav a:hover {
            color: var(--accent);
            text-decoration: none;
            padding-left: 6px;
        }

        .mobile-nav a.active {
            color: var(--accent);
            font-weight: 650;
        }

        /* Page Banner */
        .page-banner {
            background: linear-gradient(rgba(31, 58, 52, 0.82), rgba(31, 58, 52, 0.82)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            padding: 76px 0 64px;
            color: #FFFFFF;
            position: relative;
        }

        .page-banner .breadcrumb {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }

        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: var(--transition);
        }

        .page-banner .breadcrumb a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .page-banner .breadcrumb .separator {
            margin: 0 8px;
        }

        .page-banner h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.35;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .page-banner .banner-sub {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            max-width: 720px;
        }

        /* Stats Overview */
        .stats-overview {
            background: var(--primary);
            padding: 48px 0;
            margin-top: -8px;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .stat-item {
            text-align: center;
            padding: 8px;
        }

        .stat-number {
            font-size: 38px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            letter-spacing: 0.01em;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 6px;
            letter-spacing: 0.04em;
        }

        /* Case Masonry */
        .case-masonry-section {
            background: var(--bg);
        }

        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 36px;
        }

        .filter-chip {
            display: inline-block;
            padding: 7px 16px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--surface);
            border: 1px solid var(--border-color);
            cursor: pointer;
            transition: var(--transition);
            letter-spacing: 0.02em;
        }

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

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

        .case-masonry {
            column-count: 3;
            column-gap: 24px;
        }

        .case-card {
            break-inside: avoid;
            -webkit-column-break-inside: avoid;
            margin-bottom: 24px;
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: inline-block;
            width: 100%;
        }

        .case-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(184, 138, 92, 0.3);
        }

        .case-card-img {
            position: relative;
            overflow: hidden;
            border-radius: 0;
        }

        .case-card-img img {
            width: 100%;
            height: auto;
            border-radius: 0;
            transition: transform 0.4s ease;
        }

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

        .case-card-img .img-ratio-169 {
            aspect-ratio: 16/9;
        }

        .case-card-img .img-ratio-43 {
            aspect-ratio: 4/3;
        }

        .case-card-img .img-ratio-11 {
            aspect-ratio: 1/1;
        }

        .case-card-img .img-ratio-32 {
            aspect-ratio: 3/2;
        }

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

        .case-card-body {
            padding: 20px 22px 22px;
        }

        .case-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 12px;
        }

        .case-card-title {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .case-card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 14px;
        }

        .case-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
            font-size: 13px;
            color: var(--text-secondary);
        }

        .case-card-meta .result-data {
            color: var(--success);
            font-weight: 650;
            font-size: 14px;
        }

        /* Deep Content Section */
        .deep-content-section {
            background: var(--surface);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

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

        .deep-content-text h2 {
            font-size: 24px;
            font-weight: 650;
            color: var(--primary);
            line-height: 1.45;
            margin-bottom: 20px;
        }

        .deep-content-text h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.5;
            margin-top: 28px;
            margin-bottom: 12px;
        }

        .deep-content-text p {
            font-size: 15px;
            color: var(--text-primary);
            line-height: 1.95;
            margin-bottom: 16px;
        }

        .deep-content-text ul {
            margin: 0 0 16px 20px;
            padding: 0;
        }

        .deep-content-text li {
            font-size: 15px;
            color: var(--text-primary);
            line-height: 1.9;
            margin-bottom: 8px;
        }

        .deep-content-image {
            position: sticky;
            top: 120px;
        }

        .deep-content-image img {
            width: 100%;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }

        .deep-content-image .img-caption {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 10px;
            text-align: center;
            line-height: 1.7;
        }

        /* Testimonial */
        .testimonial-section {
            background: var(--bg);
        }

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

        .testimonial-card {
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

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

        .testimonial-quote {
            font-size: 15px;
            color: var(--text-primary);
            line-height: 1.85;
            margin-bottom: 18px;
            position: relative;
            padding-left: 18px;
            border-left: 3px solid var(--accent);
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testimonial-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 700;
            font-size: 17px;
            flex-shrink: 0;
        }

        .testimonial-name {
            font-size: 14px;
            font-weight: 650;
            color: var(--primary);
            line-height: 1.4;
        }

        .testimonial-role {
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* CTA Section */
        .cta-section {
            background: var(--primary);
            border-radius: 12px;
            padding: 56px 40px;
            text-align: center;
            margin: var(--spacing-section) auto;
            max-width: 1060px;
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 650;
            color: #FFFFFF;
            line-height: 1.4;
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn {
            margin: 4px 8px;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg);
        }

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

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

        .faq-item:hover {
            border-color: rgba(184, 138, 92, 0.35);
            box-shadow: var(--shadow-card);
        }

        .faq-item summary {
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: var(--transition);
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-light);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 600;
            transition: transform 0.25s ease;
        }

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

        .faq-item .faq-answer {
            padding: 4px 22px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 40px;
        }

        .site-footer h4 {
            font-size: 15px;
            font-weight: 650;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

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

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

        .site-footer a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            text-decoration: none;
            transition: var(--transition);
        }

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

        .footer-logo {
            font-size: 22px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .footer-brand p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            max-width: 260px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 12.5px;
            color: rgba(255, 255, 255, 0.55);
            margin: 0;
            line-height: 1.7;
        }

        .footer-bottom a {
            font-size: 12.5px;
            color: rgba(255, 255, 255, 0.55);
            text-decoration: none;
            transition: var(--transition);
        }

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

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

        /* Responsive */
        @media (max-width: 1024px) {
            .case-masonry {
                column-count: 2;
                column-gap: 18px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .deep-content-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .deep-content-image {
                position: static;
                order: -1;
            }

            .cta-section {
                padding: 44px 28px;
                border-radius: 10px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 56px;
            }

            .masthead-logo {
                font-size: 24px;
            }

            .masthead-tagline {
                display: none;
            }

            .masthead-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }

            .channel-nav {
                display: none;
            }

            .hamburger-btn {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .masthead-actions {
                display: none;
            }

            .masthead-row {
                padding: 10px 0 0;
            }

            .masthead-divider {
                margin-top: 8px;
            }

            .masthead-bottom {
                padding: 4px 0 10px;
            }

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

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

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

            .page-banner .banner-sub {
                font-size: 14px;
            }

            .case-masonry {
                column-count: 1;
                column-gap: 0;
            }

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

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

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

            .filter-bar {
                gap: 8px;
                flex-wrap: nowrap;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 4px;
            }

            .filter-chip {
                flex-shrink: 0;
                font-size: 12px;
                padding: 6px 14px;
            }

            .cta-section {
                padding: 36px 20px;
                margin: var(--spacing-section) 16px;
                border-radius: 8px;
            }

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

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

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

            .case-card-body {
                padding: 16px 18px 18px;
            }

            .testimonial-card {
                padding: 20px;
            }

            .faq-item summary {
                padding: 14px 16px;
                font-size: 15px;
            }

            .faq-item .faq-answer {
                padding: 4px 16px 16px;
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            .masthead-logo {
                font-size: 21px;
            }

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

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

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

            .stat-label {
                font-size: 12px;
            }

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

            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1F3A34;
            --primary-dark: #162A26;
            --primary-light: rgba(31, 58, 52, 0.06);
            --accent: #B88A5C;
            --accent-hover: #A06A42;
            --accent-light: rgba(184, 138, 92, 0.12);
            --bg: #F7F5F1;
            --surface: #FFFFFF;
            --text-primary: #2B2825;
            --text-secondary: #5A554F;
            --text-on-dark: rgba(255, 255, 255, 0.85);
            --border-color: rgba(31, 58, 52, 0.10);
            --border-strong: rgba(31, 58, 52, 0.15);
            --success: #3D7A5E;
            --warning: #A65A3A;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-badge: 4px;
            --shadow-card: 0 2px 10px rgba(31, 58, 52, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(31, 58, 52, 0.10);
            --shadow-btn: 0 4px 12px rgba(184, 138, 92, 0.30);
            --spacing-section: 80px;
            --spacing-section-mobile: 52px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --transition: all 0.25s ease;
        }

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

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

        body {
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--text-primary);
            line-height: 1.85;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-family);
            color: var(--primary);
            margin-top: 0;
        }

        h1 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.01em;
            color: var(--primary);
        }

        h2 {
            font-size: 24px;
            font-weight: 650;
            line-height: 1.4;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--primary);
            margin-bottom: 12px;
        }

        p {
            font-size: 16px;
            font-weight: 400;
            line-height: 1.9;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        .section-sm {
            padding: 48px 0;
        }

        .section-title {
            font-size: 26px;
            font-weight: 650;
            line-height: 1.4;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 720px;
        }

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

        .section-head .section-title {
            margin-bottom: 10px;
        }

        .badge-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            border: 1px solid rgba(184, 138, 92, 0.25);
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            letter-spacing: 0.02em;
            line-height: 1.7;
        }

        .btn {
            display: inline-block;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-family);
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-align: center;
            line-height: 1.6;
        }

        .btn:focus {
            outline: 2px solid rgba(184, 138, 92, 0.50);
            outline-offset: 2px;
        }

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

        .btn-primary:hover {
            background: var(--accent-hover);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: var(--shadow-btn);
            text-decoration: none;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

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

        .btn-secondary:hover {
            background: var(--primary-light);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            text-decoration: none;
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.7);
            color: #FFFFFF;
        }

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

        .btn-link {
            background: none;
            border: none;
            padding: 6px 0;
            color: var(--accent);
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-link:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }

        .btn-link .arrow {
            display: inline-block;
            transition: transform 0.2s ease;
            margin-left: 4px;
        }

        .btn-link:hover .arrow {
            transform: translateX(3px);
        }

        /* 杂志刊头导航 */
        .site-header {
            background: var(--surface);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 6px rgba(31, 58, 52, 0.05);
        }

        .masthead-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0;
            flex-wrap: wrap;
            gap: 10px;
        }

        .masthead-brand {
            display: flex;
            align-items: baseline;
            gap: 10px;
            flex-shrink: 0;
        }

        .masthead-brand a {
            font-size: 32px;
            font-weight: 750;
            color: var(--primary);
            letter-spacing: 0.02em;
            line-height: 1.2;
        }

        .masthead-brand a:hover {
            text-decoration: none;
            color: var(--primary-dark);
        }

        .masthead-brand .brand-sub {
            font-size: 13px;
            color: var(--text-secondary);
            letter-spacing: 0.05em;
        }

        .masthead-divider {
            height: 1px;
            background: var(--border-strong);
            width: 100%;
            margin: 0;
            border: none;
        }

        .nav-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            gap: 10px;
            flex-wrap: wrap;
        }

        .channel-nav {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 22px;
            flex-wrap: wrap;
            align-items: center;
        }

        .channel-nav li {
            margin: 0;
        }

        .channel-nav a {
            display: inline-block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 2px;
            border-bottom: 2px solid transparent;
            transition: var(--transition);
            letter-spacing: 0.02em;
        }

        .channel-nav a:hover {
            color: var(--primary);
            border-bottom-color: var(--accent);
            text-decoration: none;
        }

        .channel-nav a.active {
            color: var(--primary);
            font-weight: 700;
            border-bottom-color: var(--accent);
        }

        .nav-extra {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .nav-extra .search-btn {
            background: none;
            border: none;
            color: var(--text-secondary);
            font-size: 16px;
            cursor: pointer;
            padding: 6px;
            transition: var(--transition);
        }

        .nav-extra .search-btn:hover {
            color: var(--primary);
        }

        .nav-extra .rss-link {
            font-size: 14px;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .nav-extra .rss-link:hover {
            color: var(--accent);
        }

        .hamburger-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            padding: 8px 12px;
            cursor: pointer;
            font-size: 18px;
            color: var(--primary);
            transition: var(--transition);
        }

        .hamburger-toggle:hover {
            background: var(--primary-light);
        }

        /* 内页 banner */
        .page-banner {
            background: var(--primary);
            background-image: linear-gradient(rgba(31, 58, 52, 0.82), rgba(31, 58, 52, 0.88)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 72px 0 64px;
            color: #FFFFFF;
            position: relative;
        }

        .page-banner .banner-content {
            max-width: 780px;
        }

        .page-banner h1 {
            color: #FFFFFF;
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 14px;
        }

        .page-banner p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .page-banner .badge-tag {
            background: rgba(184, 138, 92, 0.25);
            color: #E8C9A8;
            border-color: rgba(184, 138, 92, 0.45);
            margin-bottom: 14px;
        }

        /* 品牌介绍长文 */
        .brand-article {
            background: var(--surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 40px 44px;
            margin-top: -40px;
            position: relative;
            z-index: 2;
        }

        .brand-article h2 {
            margin-top: 2em;
            padding-top: 1em;
            border-top: 1px solid var(--border-color);
        }

        .brand-article h2:first-child {
            margin-top: 0;
            padding-top: 0;
            border-top: none;
        }

        .brand-article h3 {
            margin-top: 1.6em;
            color: var(--primary-dark);
        }

        .brand-article p {
            margin-bottom: 18px;
            font-size: 16px;
            line-height: 1.95;
        }

        .brand-article .lead-text {
            font-size: 17px;
            color: var(--text-primary);
            font-weight: 500;
            line-height: 2;
        }

        /* 时间轴 */
        .timeline-section {
            background: var(--surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 40px 44px;
        }

        .timeline {
            position: relative;
            padding-left: 30px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--accent), rgba(184, 138, 92, 0.2));
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 32px;
            padding-left: 24px;
        }

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

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

        .timeline-item .timeline-date {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.03em;
            margin-bottom: 4px;
        }

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

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

        /* 价值理念卡片 */
        .value-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 32px;
        }

        .value-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            padding: 28px 24px;
            transition: var(--transition);
            text-align: center;
        }

        .value-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(184, 138, 92, 0.3);
        }

        .value-card .value-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--accent-light);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 22px;
        }

        .value-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--primary);
        }

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

        /* 数据展示条 */
        .stats-bar {
            background: var(--primary);
            border-radius: var(--radius-card);
            padding: 32px 36px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stats-bar .stat-item .stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.3;
        }

        .stats-bar .stat-item .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 4px;
        }

        /* CTA 收尾 */
        .cta-section {
            background: var(--primary);
            border-radius: 12px;
            padding: 52px 40px;
            text-align: center;
            color: #FFFFFF;
            margin-bottom: var(--spacing-section);
        }

        .cta-section h2 {
            color: #FFFFFF;
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn-primary {
            font-size: 16px;
            padding: 12px 28px;
        }

        /* 页脚 */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 24px;
            margin-top: 0;
        }

        .site-footer .container {
            max-width: 1200px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand .footer-logo {
            font-size: 24px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.75;
            margin-bottom: 0;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

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

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

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
            text-decoration: none;
        }

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

        .footer-bottom p {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .footer-bottom a {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
        }

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

        /* 响应式 */
        @media (max-width: 1024px) {
            .value-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

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

            .brand-article,
            .timeline-section {
                padding: 32px 28px;
            }
        }

        @media (max-width: 768px) {
            .masthead-row {
                padding: 12px 0;
            }

            .masthead-brand a {
                font-size: 26px;
            }

            .masthead-brand .brand-sub {
                display: none;
            }

            .hamburger-toggle {
                display: block;
            }

            .nav-row {
                flex-wrap: wrap;
            }

            .channel-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 4px;
                padding: 12px 0 4px;
                border-top: 1px solid var(--border-color);
            }

            .channel-nav.open {
                display: flex;
            }

            .channel-nav a {
                display: block;
                padding: 10px 4px;
                border-bottom: 1px solid var(--border-color);
                font-size: 15px;
            }

            .channel-nav a.active {
                border-bottom-color: var(--accent);
                border-bottom-width: 2px;
            }

            .page-banner {
                padding: 56px 0 48px;
            }

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

            .brand-article,
            .timeline-section {
                margin-top: -20px;
                padding: 24px 20px;
            }

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

            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
                padding: 24px 20px;
            }

            .cta-section {
                padding: 36px 24px;
                margin-bottom: 48px;
            }

            .site-footer {
                padding: 40px 0 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 22px;
            }

            .page-banner p {
                font-size: 14px;
            }

            .section {
                padding: 48px 0;
            }

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

            .brand-article {
                padding: 20px 16px;
                font-size: 15px;
            }

            .brand-article h2 {
                font-size: 20px;
            }

            .timeline {
                padding-left: 22px;
            }

            .timeline-item {
                padding-left: 18px;
            }

            .timeline-item::before {
                left: -22px;
                width: 12px;
                height: 12px;
            }

            .stats-bar {
                grid-template-columns: 1fr;
                text-align: left;
            }

            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }

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

/* roulang page: category7 */
:root {
            --primary: #1F3A34;
            --primary-dark: #162A26;
            --primary-light: rgba(31, 58, 52, 0.06);
            --accent: #B88A5C;
            --accent-hover: #A06A42;
            --accent-light: rgba(184, 138, 92, 0.12);
            --bg: #F7F5F1;
            --surface: #FFFFFF;
            --text-primary: #2B2825;
            --text-secondary: #5A554F;
            --text-on-dark: rgba(255, 255, 255, 0.85);
            --border-color: rgba(31, 58, 52, 0.10);
            --border-strong: rgba(31, 58, 52, 0.15);
            --success: #3D7A5E;
            --warning: #A65A3A;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-badge: 4px;
            --shadow-card: 0 2px 10px rgba(31, 58, 52, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(31, 58, 52, 0.10);
            --shadow-btn: 0 4px 12px rgba(184, 138, 92, 0.30);
            --spacing-section: 80px;
            --spacing-section-mobile: 52px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --transition: all 0.25s ease;
        }

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

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

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

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

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        .section-title {
            font-size: 26px;
            font-weight: 650;
            line-height: 1.4;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 720px;
        }

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

        .section-head .section-title {
            margin-bottom: 10px;
        }

        .badge-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            border: 1px solid rgba(184, 138, 92, 0.25);
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            letter-spacing: 0.02em;
            line-height: 1.7;
        }

        .btn {
            display: inline-block;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-family);
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-align: center;
            line-height: 1.6;
        }

        .btn:focus {
            outline: 2px solid rgba(184, 138, 92, 0.50);
            outline-offset: 2px;
        }

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

        .btn-primary:hover {
            background: var(--accent-hover);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: var(--shadow-btn);
            text-decoration: none;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

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

        .btn-secondary:hover {
            background: var(--primary-light);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            text-decoration: none;
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.7);
            color: #FFFFFF;
        }

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

        .btn-link {
            background: none;
            border: none;
            padding: 6px 0;
            color: var(--accent);
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition);
            font-family: var(--font-family);
        }

        .btn-link:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }

        .btn-link .arrow {
            display: inline-block;
            transition: transform 0.2s ease;
            margin-left: 4px;
        }

        .btn-link:hover .arrow {
            transform: translateX(3px);
        }

        /* Header / Magazine Masthead */
        .site-header {
            background: var(--surface);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 6px rgba(31, 58, 52, 0.05);
        }

        .masthead-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            flex-wrap: wrap;
            gap: 10px;
        }

        .masthead-brand {
            display: flex;
            align-items: baseline;
            gap: 10px;
            flex-wrap: wrap;
        }

        .masthead-name {
            font-size: 30px;
            font-weight: 750;
            color: var(--primary);
            letter-spacing: 0.02em;
            line-height: 1.25;
        }

        .masthead-tagline {
            font-size: 13px;
            color: var(--text-secondary);
            letter-spacing: 0.05em;
        }

        .masthead-divider {
            width: 100%;
            height: 1px;
            background: var(--border-strong);
            margin: 4px 0 10px;
        }

        .masthead-nav-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-bottom: 12px;
        }

        .channel-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .channel-nav li {
            margin: 0;
        }

        .channel-nav a {
            display: inline-block;
            padding: 6px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-badge);
            transition: var(--transition);
            white-space: nowrap;
        }

        .channel-nav a:hover {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }

        .channel-nav a.active {
            color: var(--primary);
            font-weight: 700;
            background: var(--primary-light);
        }

        .masthead-tools {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .masthead-search {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            padding: 4px 10px;
            gap: 6px;
            min-width: 180px;
        }

        .masthead-search i {
            color: var(--text-secondary);
            font-size: 13px;
        }

        .masthead-search input {
            border: none;
            background: transparent;
            font-family: var(--font-family);
            font-size: 13px;
            color: var(--text-primary);
            outline: none;
            width: 100%;
            padding: 4px 0;
        }

        .masthead-search input::placeholder {
            color: var(--text-secondary);
        }

        .hamburger-btn {
            display: none;
            background: none;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            padding: 8px 14px;
            cursor: pointer;
            font-size: 18px;
            color: var(--primary);
            transition: var(--transition);
        }

        .hamburger-btn:hover {
            background: var(--primary-light);
        }

        /* Page Hero / Banner */
        .page-banner {
            background: linear-gradient(135deg, rgba(31, 58, 52, 0.92) 0%, rgba(31, 58, 52, 0.78) 100%),
                url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            color: #FFFFFF;
            padding: 72px 0 64px;
            position: relative;
        }

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

        .breadcrumb-row {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .breadcrumb-row a {
            color: rgba(255, 255, 255, 0.85);
        }

        .breadcrumb-row a:hover {
            color: #FFFFFF;
            text-decoration: underline;
        }

        .breadcrumb-row .sep {
            color: rgba(255, 255, 255, 0.5);
        }

        .page-banner h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.35;
            margin: 0 0 16px;
            color: #FFFFFF;
            letter-spacing: 0.01em;
        }

        .page-banner .banner-sub {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.82);
            line-height: 1.8;
            max-width: 680px;
            margin: 0 0 28px;
        }

        .faq-search-box {
            display: flex;
            align-items: center;
            gap: 12px;
            background: #FFFFFF;
            border-radius: var(--radius-btn);
            padding: 6px 8px 6px 18px;
            max-width: 520px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
        }

        .faq-search-box i {
            color: var(--text-secondary);
            font-size: 16px;
            flex-shrink: 0;
        }

        .faq-search-box input {
            flex: 1;
            border: none;
            background: transparent;
            font-family: var(--font-family);
            font-size: 15px;
            color: var(--text-primary);
            outline: none;
            padding: 8px 0;
            min-width: 0;
        }

        .faq-search-box input::placeholder {
            color: var(--text-secondary);
        }

        .faq-search-box .btn {
            flex-shrink: 0;
            padding: 8px 18px;
            font-size: 14px;
        }

        /* FAQ Stats */
        .faq-stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: -32px;
            position: relative;
            z-index: 5;
        }

        .faq-stat-item {
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

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

        .faq-stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
        }

        .faq-stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* FAQ Category Groups */
        .faq-groups-wrapper {
            display: flex;
            flex-direction: column;
            gap: 40px;
        }

        .faq-group-block {
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .faq-group-block:hover {
            box-shadow: var(--shadow-card-hover);
        }

        .faq-group-header {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 20px 28px;
            background: var(--primary-light);
            border-bottom: 1px solid var(--border-color);
            flex-wrap: wrap;
        }

        .faq-group-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--accent);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

        .faq-group-title {
            font-size: 18px;
            font-weight: 650;
            color: var(--primary);
            margin: 0;
            line-height: 1.5;
        }

        .faq-group-desc {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
        }

        .faq-group-body {
            padding: 10px 28px 20px;
        }

        /* FAQ Accordion Item */
        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 4px 0;
        }

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

        .faq-item details {
            border-radius: 8px;
            transition: var(--transition);
        }

        .faq-item details:hover {
            background: var(--primary-light);
        }

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 12px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.6;
            transition: var(--transition);
            border-radius: 8px;
            user-select: none;
            -webkit-user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            color: var(--primary-dark);
        }

        .faq-item summary .faq-toggle-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-light);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: var(--transition);
        }

        .faq-item details[open] summary .faq-toggle-icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: #FFFFFF;
        }

        .faq-answer {
            padding: 0 12px 18px 44px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
        }

        .faq-answer p {
            margin: 0 0 8px;
        }

        .faq-answer p:last-child {
            margin-bottom: 0;
        }

        /* Sidebar quick nav */
        .faq-quick-nav {
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            position: sticky;
            top: 100px;
            box-shadow: var(--shadow-card);
        }

        .faq-quick-nav h3 {
            font-size: 16px;
            font-weight: 650;
            color: var(--primary);
            margin: 0 0 14px;
        }

        .faq-quick-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .faq-quick-nav a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 12px;
            font-size: 14px;
            color: var(--text-secondary);
            border-radius: var(--radius-badge);
            transition: var(--transition);
        }

        .faq-quick-nav a:hover {
            background: var(--primary-light);
            color: var(--primary);
            text-decoration: none;
        }

        .faq-quick-nav a .nav-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

        /* CTA Section */
        .cta-section {
            background: var(--primary);
            border-radius: 12px;
            padding: 52px 40px;
            text-align: center;
            color: #FFFFFF;
            margin-top: 60px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(184, 138, 92, 0.15);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(184, 138, 92, 0.08);
            pointer-events: none;
        }

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

        .cta-section h2 {
            font-size: 26px;
            font-weight: 700;
            margin: 0 0 12px;
            color: #FFFFFF;
            line-height: 1.4;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.82);
            line-height: 1.8;
            margin: 0 0 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn {
            padding: 12px 28px;
            font-size: 16px;
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 32px;
            margin-top: 80px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-brand .footer-logo {
            font-size: 24px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            margin: 0;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 650;
            color: #FFFFFF;
            margin: 0 0 14px;
        }

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

        .footer-col a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: #FFFFFF;
            text-decoration: underline;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }

        .footer-bottom p {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            margin: 0;
            line-height: 1.6;
        }

        .footer-bottom a {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .faq-stats-row {
                grid-template-columns: repeat(2, 1fr);
            }

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

        @media (max-width: 768px) {
            .masthead-row {
                padding: 10px 0;
            }

            .masthead-name {
                font-size: 24px;
            }

            .hamburger-btn {
                display: inline-block;
            }

            .masthead-nav-row {
                display: none;
            }

            .masthead-nav-row.is-open {
                display: flex;
                flex-direction: column;
                align-items: stretch;
                padding-bottom: 14px;
            }

            .channel-nav {
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
            }

            .channel-nav a {
                display: block;
                padding: 10px 14px;
            }

            .masthead-tools {
                width: 100%;
                justify-content: space-between;
            }

            .masthead-search {
                flex: 1;
                min-width: 0;
            }

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

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

            .faq-search-box {
                flex-wrap: wrap;
            }

            .faq-search-box input {
                min-width: 120px;
            }

            .faq-stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
                margin-top: -20px;
                padding: 0 12px;
            }

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

            .faq-stat-number {
                font-size: 22px;
            }

            .faq-group-header {
                padding: 16px 18px;
            }

            .faq-group-body {
                padding: 6px 18px 14px;
            }

            .faq-answer {
                padding-left: 20px;
                font-size: 14px;
            }

            .faq-item summary {
                font-size: 15px;
                padding: 14px 8px;
            }

            .cta-section {
                padding: 36px 20px;
                margin-top: 40px;
            }

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

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

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

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

            .faq-quick-nav {
                position: static;
                margin-bottom: 24px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .masthead-name {
                font-size: 21px;
            }

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

            .faq-stats-row {
                grid-template-columns: 1fr;
            }

            .faq-group-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .faq-search-box {
                flex-direction: column;
                align-items: stretch;
            }

            .faq-search-box .btn {
                width: 100%;
                text-align: center;
            }
        }