/* roulang page: index */
:root {
            --primary: #1D4E4A;
            --primary-dark: #143836;
            --primary-light: #2A6B65;
            --accent: #C8873D;
            --accent-hover: #B07630;
            --bg: #F4F0EA;
            --bg-card: #FFFFFF;
            --bg-soft: #EDE7DE;
            --text: #1F262A;
            --text-secondary: #5B656B;
            --text-light: #F4F0EA;
            --text-muted: #9AA5AB;
            --border: #E2DCD4;
            --border-strong: #C9C2B8;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(31,38,42,.05);
            --shadow-md: 0 4px 16px rgba(31,38,42,.06);
            --shadow-lg: 0 12px 32px rgba(31,38,42,.12);
            --shadow-xl: 0 24px 48px rgba(31,38,42,.14);
            --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-numeric: 'Inter', 'Noto Sans SC', sans-serif;
            --transition: all .25s ease;
            --container-max: 1200px;
            --section-padding: 72px 0;
            --section-padding-mobile: 44px 0;
        }

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

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

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 2px;
        }

        ul,
        ol {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-sans);
            font-weight: 800;
            color: var(--text);
            line-height: 1.35;
            margin: 0 0 16px;
        }

        h1 {
            font-size: clamp(2.1rem, 5vw, 3.4rem);
            letter-spacing: -0.02em;
        }

        h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            letter-spacing: -0.01em;
        }

        h3 {
            font-size: 1.25rem;
            font-weight: 700;
        }

        p {
            margin: 0 0 16px;
            color: var(--text);
        }

        .text-secondary {
            color: var(--text-secondary);
        }

        .text-accent {
            color: var(--accent);
        }

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

        .font-numeric {
            font-family: var(--font-numeric);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: var(--section-padding);
        }

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

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

        section.section-dark h2,
        section.section-dark h3,
        section.section-dark p {
            color: var(--text-light);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .section-title {
            max-width: 680px;
            margin-bottom: 20px;
        }

        .section-subtitle {
            max-width: 620px;
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            line-height: 1.9;
        }

        .section-divider {
            width: 56px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
            margin: 0 0 24px;
        }

        .btn {
            display: inline-block;
            font-family: var(--font-sans);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            line-height: 1.4;
            white-space: nowrap;
        }

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

        .btn-primary:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

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

        .btn-accent:hover {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

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

        .btn-outline:hover {
            background-color: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }

        .btn-outline-light {
            background-color: transparent;
            color: var(--text-light);
            border-color: var(--text-light);
        }

        .btn-outline-light:hover {
            background-color: var(--text-light);
            color: var(--text);
        }

        .btn-sm {
            padding: 9px 20px;
            font-size: 0.85rem;
            border-radius: 6px;
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
            border-radius: 10px;
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            padding: 28px;
            transition: var(--transition);
            height: 100%;
            border: 1px solid var(--border);
        }

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

        .tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            line-height: 1.6;
        }

        .tag-primary {
            background-color: rgba(29, 78, 74, .1);
            color: var(--primary);
        }

        .tag-accent {
            background-color: rgba(200, 135, 61, .12);
            color: var(--accent);
        }

        .tag-outline {
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid var(--border-strong);
        }

        /* Header / Navigation */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 0 rgba(31,38,42,.04);
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 24px;
            flex-wrap: wrap;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

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

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: var(--transition);
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--primary);
            background-color: rgba(29, 78, 74, .06);
        }

        .main-nav a.active {
            color: var(--primary);
            background-color: rgba(29, 78, 74, .1);
            font-weight: 700;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text);
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background-color: var(--bg-soft);
        }

        /* Hero */
        .hero {
            position: relative;
            overflow: hidden;
            background: var(--text);
            color: var(--text-light);
            padding: 0;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/e32763c54cf056fd.webp');
            background-size: cover;
            background-position: center;
            opacity: .35;
            z-index: 1;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(31,38,42,.82) 0%, rgba(31,38,42,.7) 40%, rgba(31,38,42,.86) 100%);
            z-index: 2;
        }

        .hero-content {
            position: relative;
            z-index: 3;
            padding: 80px 0 64px;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-text h1 {
            color: #fff;
            margin-bottom: 20px;
            font-size: clamp(2.2rem, 4.8vw, 3.3rem);
        }

        .hero-text .hero-subtitle {
            color: rgba(244,240,234,.88);
            font-size: 1.08rem;
            line-height: 1.95;
            margin-bottom: 28px;
            max-width: 540px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

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

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

        .hero-stat .stat-number {
            font-family: var(--font-numeric);
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--accent);
            display: block;
        }

        .hero-stat .stat-label {
            font-size: 0.82rem;
            color: rgba(244,240,234,.72);
        }

        .hero-compare {
            background: rgba(255,255,255,.06);
            border: 1px solid rgba(255,255,255,.16);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .compare-grid {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 20px;
            align-items: stretch;
        }

        .compare-col {
            background: rgba(255,255,255,.05);
            border-radius: var(--radius-md);
            padding: 22px 18px;
            border: 1px solid rgba(255,255,255,.1);
        }

        .compare-col.before {
            background: rgba(200,60,60,.08);
            border-color: rgba(200,60,60,.25);
        }

        .compare-col.after {
            background: rgba(29,78,74,.2);
            border-color: rgba(41,107,101,.4);
        }

        .compare-col .compare-title {
            font-size: 0.85rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: rgba(244,240,234,.75);
            margin-bottom: 14px;
        }

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

        .compare-col ul li {
            font-size: 0.85rem;
            color: rgba(244,240,234,.88);
            padding: 5px 0;
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.6;
        }

        .compare-col ul li i {
            font-size: 0.8rem;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .compare-col.before ul li i {
            color: #e8a0a0;
        }

        .compare-col.after ul li i {
            color: #7fc5bc;
        }

        .compare-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent);
            font-weight: 700;
        }

        /* Pill Navigation */
        .pill-nav-section {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 0;
            position: relative;
            z-index: 10;
        }

        .pill-nav {
            display: flex;
            gap: 12px;
            overflow-x: auto;
            padding: 16px 0;
            scrollbar-width: thin;
            scrollbar-color: var(--border-strong) transparent;
            -webkit-overflow-scrolling: touch;
        }

        .pill-nav::-webkit-scrollbar {
            height: 4px;
        }

        .pill-nav::-webkit-scrollbar-track {
            background: transparent;
        }

        .pill-nav::-webkit-scrollbar-thumb {
            background: var(--border-strong);
            border-radius: 4px;
        }

        .pill-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: 40px;
            border: 1.5px solid var(--border);
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .pill-nav a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: rgba(29,78,74,.04);
        }

        .pill-nav a.active {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 700;
        }

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

        .metric-card {
            background: rgba(255,255,255,.05);
            border: 1px solid rgba(255,255,255,.12);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            text-align: center;
            transition: var(--transition);
        }

        .metric-card:hover {
            background: rgba(255,255,255,.08);
            border-color: rgba(255,255,255,.2);
        }

        .metric-card .metric-number {
            font-family: var(--font-numeric);
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent);
            display: block;
            margin-bottom: 6px;
            line-height: 1.2;
        }

        .metric-card .metric-label {
            font-size: 0.9rem;
            color: rgba(244,240,234,.75);
        }

        .metric-card .metric-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.78rem;
            font-weight: 700;
            color: #7fc5bc;
            margin-top: 8px;
        }

        /* Service Matrix */
        .service-matrix {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 26px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            min-height: 260px;
        }

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

        .service-card .service-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 18px;
            background: rgba(29,78,74,.08);
            color: var(--primary);
        }

        .service-card h3 {
            margin-bottom: 12px;
            font-size: 1.15rem;
        }

        .service-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.8;
            flex-grow: 1;
        }

        .service-card .service-link {
            font-weight: 700;
            font-size: 0.88rem;
            color: var(--primary);
            margin-top: 16px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .service-card .service-link:hover {
            color: var(--primary-light);
            gap: 10px;
        }

        /* Result Comparison */
        .result-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            background: #fff;
            border: 1px solid var(--border);
        }

        .result-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 560px;
        }

        .result-table th {
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 16px 20px;
            text-align: left;
            white-space: nowrap;
        }

        .result-table td {
            padding: 14px 20px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border);
            white-space: nowrap;
        }

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

        .result-table .diff-positive {
            color: var(--primary);
            font-weight: 700;
            font-family: var(--font-numeric);
        }

        .result-table .highlight-cell {
            color: var(--accent);
            font-weight: 700;
            font-family: var(--font-numeric);
        }

        /* Timeline */
        .timeline {
            position: relative;
            padding-left: 40px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 14px;
            top: 6px;
            bottom: 6px;
            width: 2px;
            background: rgba(255,255,255,.15);
        }

        .timeline-item {
            position: relative;
            padding: 0 0 32px 20px;
        }

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

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -34px;
            top: 8px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent);
            border: 3px solid var(--text);
            box-shadow: 0 0 0 4px rgba(200,135,61,.25);
        }

        .timeline-item .timeline-year {
            font-family: var(--font-numeric);
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 4px;
            display: block;
        }

        .timeline-item h3 {
            color: var(--text-light);
            font-size: 1.05rem;
            margin-bottom: 8px;
        }

        .timeline-item p {
            color: rgba(244,240,234,.75);
            font-size: 0.9rem;
            margin-bottom: 0;
        }

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

        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            border: 1px solid var(--border);
        }

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

        .news-card .news-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

        .news-card .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

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

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

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

        .news-card .news-date {
            font-family: var(--font-numeric);
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .news-card h3 {
            font-size: 1.05rem;
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .news-card h3 a {
            color: var(--text);
        }

        .news-card h3 a:hover {
            color: var(--primary);
        }

        .news-card .news-excerpt {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* Trust / Platform Assurance */
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .trust-item {
            text-align: center;
            padding: 24px 16px;
            border-radius: var(--radius-md);
            background: rgba(255,255,255,.04);
            border: 1px solid rgba(255,255,255,.1);
            transition: var(--transition);
        }

        .trust-item:hover {
            background: rgba(255,255,255,.07);
            border-color: rgba(255,255,255,.18);
        }

        .trust-item .trust-icon {
            font-size: 1.8rem;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .trust-item h4 {
            color: var(--text-light);
            font-size: 1rem;
            margin-bottom: 6px;
        }

        .trust-item p {
            color: rgba(244,240,234,.68);
            font-size: 0.82rem;
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* Quick Answers */
        .quick-answers {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .qa-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            cursor: pointer;
            transition: var(--transition);
        }

        .qa-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .qa-item .qa-question {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .qa-item .qa-question i {
            color: var(--primary);
            font-size: 0.9rem;
        }

        .qa-item .qa-answer {
            display: none;
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin-top: 12px;
            line-height: 1.8;
        }

        .qa-item.open .qa-answer {
            display: block;
        }

        .qa-item.open {
            border-color: var(--primary);
            background: rgba(29,78,74,.03);
        }

        /* Brand Intro */
        .brand-intro {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .brand-intro .brand-intro-text h2 {
            margin-bottom: 20px;
        }

        .brand-intro .brand-intro-text p {
            font-size: 0.98rem;
            line-height: 2;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .brand-intro .brand-intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .brand-intro .brand-intro-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        /* FAQ */
        .faq-accordion {
            max-width: 760px;
            margin: 0 auto;
        }

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

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

        .faq-item .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 0.98rem;
            color: var(--text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
        }

        .faq-item .faq-question i {
            color: var(--primary);
            transition: transform .3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .35s ease;
            padding: 0 24px;
        }

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

        .faq-item .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 0;
        }

        /* Form */
        .contact-form-wrap {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 40px 36px;
            max-width: 640px;
            margin: 0 auto;
            border: 1px solid var(--border);
        }

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

        .contact-form label {
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
            display: block;
        }

        .contact-form input,
        .contact-form textarea,
        .contact-form select {
            width: 100%;
            padding: 13px 16px;
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm);
            font-family: var(--font-sans);
            font-size: 0.95rem;
            color: var(--text);
            background: #fff;
            transition: var(--transition);
            line-height: 1.5;
        }

        .contact-form input:focus,
        .contact-form textarea:focus,
        .contact-form select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(29,78,74,.1);
            outline: none;
        }

        .contact-form .privacy-note {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 8px;
            line-height: 1.7;
        }

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

        .network-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 26px 22px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            text-align: center;
        }

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

        .network-card .network-region {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .network-card .network-detail {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

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

        .scenario-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 30px 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .scenario-card .scenario-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 10px;
        }

        .scenario-card h3 {
            font-size: 1.08rem;
            margin-bottom: 10px;
        }

        .scenario-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* Compliance */
        .compliance-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .compliance-item {
            display: flex;
            align-items: center;
            gap: 12px;
            background: #fff;
            border-radius: var(--radius-sm);
            padding: 16px 18px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .compliance-item:hover {
            border-color: var(--primary);
            shadow: var(--shadow-sm);
        }

        .compliance-item .compliance-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(29,78,74,.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .compliance-item .compliance-text {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
        }

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

        .praise-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 30px 26px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .praise-card .praise-quote {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 18px;
            position: relative;
            padding-left: 18px;
            border-left: 3px solid var(--accent);
        }

        .praise-card .praise-author {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text);
        }

        .praise-card .praise-role {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Footer */
        .site-footer {
            background: #161B1D;
            color: rgba(244,240,234,.72);
            padding: 60px 0 28px;
            font-size: 0.88rem;
        }

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

        .footer-brand .brand {
            color: var(--text-light);
            font-size: 1.2rem;
            margin-bottom: 12px;
            display: inline-flex;
        }

        .footer-brand p {
            color: rgba(244,240,234,.6);
            font-size: 0.85rem;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .footer-col h4 {
            color: var(--text-light);
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            color: rgba(244,240,234,.6);
            padding: 4px 0;
            font-size: 0.85rem;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-contact p {
            color: rgba(244,240,234,.6);
            font-size: 0.85rem;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact i {
            color: var(--accent);
            width: 16px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: rgba(244,240,234,.45);
        }

        .footer-bottom a {
            color: rgba(244,240,234,.45);
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

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

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

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

            .brand-intro {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

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

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

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

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

        @media (max-width: 768px) {
            .header-inner {
                min-height: auto;
                padding: 12px 0;
            }

            .nav-toggle {
                display: block;
            }

            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: #fff;
                border-top: 1px solid var(--border);
                padding: 12px 0;
                gap: 2px;
            }

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

            .main-nav a {
                padding: 12px 16px;
                font-size: 1rem;
            }

            .hero-content {
                padding: 48px 0 36px;
            }

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

            .hero-stats {
                gap: 16px;
                flex-wrap: wrap;
            }

            .compare-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .compare-arrow {
                transform: rotate(90deg);
            }

            section {
                padding: var(--section-padding-mobile);
            }

            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

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

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

            .trust-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

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

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

            .network-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

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

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

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

            .contact-form-wrap {
                padding: 28px 20px;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }

            .section-title {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .container-wide {
                padding: 0 16px;
            }

            .hero-content {
                padding: 36px 0 28px;
            }

            .hero-text h1 {
                font-size: 1.7rem;
            }

            .hero-text .hero-subtitle {
                font-size: 0.95rem;
            }

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

            .btn {
                width: 100%;
                text-align: center;
            }

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

            .metric-card .metric-number {
                font-size: 1.8rem;
            }

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

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

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

            .pill-nav a {
                padding: 7px 16px;
                font-size: 0.82rem;
            }

            .result-table th,
            .result-table td {
                padding: 10px 14px;
                font-size: 0.82rem;
            }

            .faq-item .faq-question {
                padding: 16px 18px;
                font-size: 0.9rem;
            }

            .faq-item .faq-answer {
                padding: 0 18px;
                font-size: 0.85rem;
            }
        }

        @media (min-width: 769px) {
            .main-nav {
                display: flex !important;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1D4E4A;
            --primary-dark: #143836;
            --primary-light: #2A6B65;
            --accent: #C8873D;
            --accent-hover: #B07630;
            --bg: #F4F0EA;
            --bg-card: #FFFFFF;
            --bg-soft: #EDE7DE;
            --text: #1F262A;
            --text-secondary: #5B656B;
            --text-light: #F4F0EA;
            --text-muted: #9AA5AB;
            --border: #E2DCD4;
            --border-strong: #C9C2B8;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(31,38,42,.05);
            --shadow-md: 0 4px 16px rgba(31,38,42,.06);
            --shadow-lg: 0 12px 32px rgba(31,38,42,.12);
            --shadow-xl: 0 24px 48px rgba(31,38,42,.14);
            --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-numeric: 'Inter', 'Noto Sans SC', sans-serif;
            --transition: all .25s ease;
            --container-max: 1200px;
            --section-padding: 72px 0;
            --section-padding-mobile: 44px 0;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 2px;
        }

        .text-secondary { color: var(--text-secondary); }
        .text-accent { color: var(--accent); }
        .text-primary { color: var(--primary); }
        .text-light { color: var(--text-light); }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: var(--section-padding);
        }

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

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

        section.section-dark h2,
        section.section-dark h3,
        section.section-dark p {
            color: var(--text-light);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .section-title {
            max-width: 680px;
            margin-bottom: 20px;
            font-size: clamp(1.6rem, 3.5vw, 2.35rem);
            font-weight: 800;
            line-height: 1.35;
            color: var(--text);
        }

        .section-subtitle {
            max-width: 620px;
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            line-height: 1.9;
        }

        .section-divider {
            width: 56px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
            margin: 0 0 24px;
        }

        .btn {
            display: inline-block;
            font-family: var(--font-sans);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            line-height: 1.4;
            white-space: nowrap;
        }

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

        .btn-primary:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

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

        .btn-accent:hover {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

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

        .btn-outline:hover {
            background-color: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }

        .btn-outline-light {
            background-color: transparent;
            color: var(--text-light);
            border-color: var(--text-light);
        }

        .btn-outline-light:hover {
            background-color: var(--text-light);
            color: var(--text);
        }

        .btn-sm {
            padding: 9px 20px;
            font-size: 0.85rem;
            border-radius: 6px;
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
            border-radius: 10px;
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            border: 1px solid var(--border);
        }

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

        .badge {
            display: inline-block;
            background: var(--bg-soft);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .badge-accent {
            background: rgba(200,135,61,.15);
            color: var(--accent);
        }

        /* Header */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 16px;
            flex-wrap: wrap;
            padding: 8px 0;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--text);
            line-height: 1.2;
        }

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

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 39px;
            height: 39px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 26px;
            flex-wrap: wrap;
        }

        .main-nav a {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-secondary);
            padding: 6px 2px;
            position: relative;
            white-space: nowrap;
        }

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

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

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text);
            cursor: pointer;
            padding: 8px;
            border-radius: 6px;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: var(--bg-soft);
            color: var(--primary);
        }

        /* Page hero banner */
        .page-hero {
            position: relative;
            min-height: 300px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(20,38,36,.88) 0%, rgba(29,78,74,.72) 55%, rgba(29,78,74,.45) 100%);
            z-index: 1;
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
            width: 100%;
            padding-top: 48px;
            padding-bottom: 48px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255,255,255,.75);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: rgba(255,255,255,.85);
            font-weight: 500;
        }

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

        .breadcrumb .sep {
            color: rgba(255,255,255,.5);
        }

        .page-hero h1 {
            font-size: clamp(1.8rem, 4.5vw, 2.9rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.25;
            max-width: 800px;
        }

        .page-hero .hero-desc {
            font-size: 1.05rem;
            color: rgba(255,255,255,.92);
            max-width: 720px;
            line-height: 1.9;
            margin-bottom: 24px;
        }

        /* Feature cards */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 8px;
        }

        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 26px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: var(--primary);
        }

        .feature-card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 18px;
        }

        .feature-card .card-icon.accent-bg {
            background: var(--accent);
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
            line-height: 1.5;
        }

        .feature-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* Steps timeline */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            position: relative;
        }

        .step-item {
            text-align: center;
            position: relative;
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            margin-bottom: 15px;
        }

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

        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }

        .step-item p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 240px;
            margin: 0 auto;
        }

        /* Stats bar */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: rgba(255,255,255,.06);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,.12);
        }

        .stat-value {
            font-family: var(--font-numeric);
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: rgba(255,255,255,.8);
            font-weight: 500;
        }

        /* News list */
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

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

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

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

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

        .news-card .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
            font-weight: 500;
        }

        .news-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.5;
            color: var(--text);
        }

        .news-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
            flex: 1;
        }

        /* FAQ */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            line-height: 1.5;
        }

        .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(--bg-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item[open] summary .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.85;
        }

        /* CTA form */
        .cta-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 44px 40px;
            box-shadow: var(--shadow-xl);
            border: 1px solid var(--border);
            max-width: 840px;
            margin: 0 auto;
        }

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

        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 6px;
            font-size: 0.9rem;
            color: var(--text);
        }

        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-strong);
            font-family: var(--font-sans);
            font-size: 0.95rem;
            color: var(--text);
            background: #fff;
            transition: var(--transition);
        }

        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(29,78,74,.1);
        }

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

        .form-privacy {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 12px;
            line-height: 1.7;
        }

        /* Footer */
        .site-footer {
            background: var(--text);
            color: rgba(255,255,255,.85);
            padding-top: 56px;
            padding-bottom: 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,.12);
        }

        .footer-brand .brand {
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .brand:hover {
            color: #fff;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.85;
            color: rgba(255,255,255,.75);
            max-width: 340px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            color: rgba(255,255,255,.75);
            font-size: 0.92rem;
            margin-bottom: 10px;
            transition: var(--transition);
        }

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

        .footer-contact h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-contact p {
            font-size: 0.88rem;
            color: rgba(255,255,255,.75);
            margin-bottom: 10px;
            line-height: 1.7;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .footer-contact i {
            color: var(--accent);
            margin-top: 5px;
            flex-shrink: 0;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            font-size: 0.82rem;
            color: rgba(255,255,255,.6);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px 20px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 4px;
                padding: 12px 0 8px;
                background: #fff;
                border-top: 1px solid var(--border);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 10px 0;
                width: 100%;
                border-bottom: 1px solid var(--bg-soft);
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .main-nav a.active::after {
                display: none;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .steps-row {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-value {
                font-size: 1.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-card {
                padding: 30px 22px;
            }
            .page-hero {
                min-height: 260px;
            }
            section {
                padding: var(--section-padding-mobile);
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .header-inner {
                padding: 4px 0;
            }
            .brand {
                font-size: 1.05rem;
            }
            .brand-mark {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
            .btn-lg {
                padding: 14px 24px;
                font-size: 0.95rem;
                white-space: normal;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1D4E4A;
            --primary-dark: #143836;
            --primary-light: #2A6B65;
            --accent: #C8873D;
            --accent-hover: #B07630;
            --bg: #F4F0EA;
            --bg-card: #FFFFFF;
            --bg-soft: #EDE7DE;
            --text: #1F262A;
            --text-secondary: #5B656B;
            --text-light: #F4F0EA;
            --text-muted: #9AA5AB;
            --border: #E2DCD4;
            --border-strong: #C9C2B8;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(31,38,42,.05);
            --shadow-md: 0 4px 16px rgba(31,38,42,.06);
            --shadow-lg: 0 12px 32px rgba(31,38,42,.12);
            --shadow-xl: 0 24px 48px rgba(31,38,42,.14);
            --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-numeric: 'Inter', 'Noto Sans SC', sans-serif;
            --transition: all .25s ease;
            --container-max: 1200px;
            --section-padding: 72px 0;
            --section-padding-mobile: 44px 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 2px;
        }
        .text-secondary { color: var(--text-secondary); }
        .text-accent { color: var(--accent); }
        .text-primary { color: var(--primary); }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: var(--section-padding);
        }
        section.section-alt {
            background-color: var(--bg-soft);
        }
        section.section-dark {
            background-color: var(--text);
            color: var(--text-light);
        }
        section.section-dark h2,
        section.section-dark h3,
        section.section-dark p {
            color: var(--text-light);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .section-title {
            max-width: 680px;
            margin-bottom: 20px;
            font-weight: 800;
            font-size: 2rem;
            line-height: 1.3;
            color: var(--text);
        }
        .section-subtitle {
            max-width: 620px;
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            line-height: 1.9;
        }
        .section-divider {
            width: 56px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
            margin: 0 0 24px;
        }
        .btn {
            display: inline-block;
            font-family: var(--font-sans);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            line-height: 1.4;
            white-space: nowrap;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }
        .btn-accent {
            background-color: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-outline {
            background-color: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background-color: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }
        .btn-outline-light {
            background-color: transparent;
            color: var(--text-light);
            border-color: var(--text-light);
        }
        .btn-outline-light:hover {
            background-color: var(--text-light);
            color: var(--text);
        }
        .btn-sm {
            padding: 9px 20px;
            font-size: 0.85rem;
            border-radius: 6px;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
            border-radius: 10px;
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        /* Header */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 24px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text);
            line-height: 1.2;
            white-space: nowrap;
        }
        .brand:hover {
            color: var(--primary);
        }
        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            font-size: 1rem;
            font-weight: 800;
            border-radius: 8px;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.92rem;
            position: relative;
            padding: 8px 0;
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--primary);
        }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 700;
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--text);
            cursor: pointer;
            padding: 8px;
            line-height: 1;
        }
        /* Page Banner */
        .page-banner {
            background: linear-gradient(rgba(20,30,28,.72), rgba(20,30,28,.72)), url('/assets/images/e32763c54cf056fd.webp') center/cover no-repeat;
            color: #fff;
            padding: 72px 0 60px;
            position: relative;
        }
        .page-banner h1 {
            color: #fff;
            font-weight: 800;
            font-size: 2.6rem;
            line-height: 1.25;
            margin: 0 0 16px;
        }
        .page-banner p {
            color: rgba(244,240,234,.9);
            font-size: 1.1rem;
            max-width: 720px;
            line-height: 1.9;
            margin: 0;
        }
        .breadcrumb-nav {
            font-size: 0.85rem;
            color: rgba(244,240,234,.7);
            margin-bottom: 20px;
        }
        .breadcrumb-nav a {
            color: rgba(244,240,234,.8);
        }
        .breadcrumb-nav a:hover {
            color: #fff;
        }
        .breadcrumb-nav span {
            margin: 0 8px;
        }
        /* Dest cards */
        .dest-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
        }
        .dest-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .dest-card .card-img {
            height: 200px;
            object-fit: cover;
            width: 100%;
        }
        .dest-card .card-body {
            padding: 24px;
        }
        .dest-card h3 {
            font-weight: 700;
            font-size: 1.15rem;
            margin: 0 0 10px;
            color: var(--text);
        }
        .dest-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.75;
            margin: 0 0 16px;
        }
        .dest-card .tag {
            display: inline-block;
            background: rgba(29,78,74,.08);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
        }
        /* Service rows */
        .service-row {
            display: flex;
            gap: 24px;
            align-items: flex-start;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 32px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            margin-bottom: 16px;
            border-left: 4px solid var(--primary);
        }
        .service-row:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .service-icon {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            background: rgba(29,78,74,.07);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.3rem;
        }
        .service-row h3 {
            font-weight: 700;
            font-size: 1.05rem;
            margin: 0 0 8px;
            color: var(--text);
        }
        .service-row p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin: 0;
            line-height: 1.75;
        }
        /* Metrics */
        .metric-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            padding: 32px 28px;
            text-align: center;
            transition: var(--transition);
            height: 100%;
        }
        .metric-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .metric-card .metric-num {
            font-family: var(--font-numeric);
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .metric-card .metric-num.accent {
            color: var(--accent);
        }
        .metric-card .metric-label {
            color: var(--text-secondary);
            font-size: 0.9rem;
            font-weight: 500;
        }
        /* Steps */
        .step-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            margin-bottom: 20px;
        }
        .step-num {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            font-family: var(--font-numeric);
            font-weight: 700;
            font-size: 1rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .step-num.accent {
            background: var(--accent);
        }
        .step-item h3 {
            font-weight: 700;
            font-size: 1.05rem;
            margin: 0 0 6px;
            color: var(--text);
        }
        .step-item p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin: 0;
            line-height: 1.75;
        }
        /* News cards */
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .news-card .card-img {
            height: 160px;
            object-fit: cover;
            width: 100%;
        }
        .news-card .card-body {
            padding: 20px 24px;
        }
        .news-card .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            font-family: var(--font-numeric);
        }
        .news-card .news-tag {
            display: inline-block;
            background: rgba(200,135,61,.12);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 16px;
            margin-bottom: 10px;
        }
        .news-card h3 {
            font-weight: 700;
            font-size: 1rem;
            line-height: 1.5;
            margin: 0 0 10px;
            color: var(--text);
        }
        .news-card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            margin: 0;
        }
        /* Accordion / FAQ */
        .faq-accordion {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .faq-accordion .accordion-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border: 1px solid var(--border);
        }
        .faq-accordion .accordion-title {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text);
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            line-height: 1.6;
        }
        .faq-accordion .accordion-title:hover {
            color: var(--primary);
        }
        .faq-accordion .accordion-title .fa-chevron-down {
            transition: transform .3s ease;
            color: var(--text-muted);
        }
        .faq-accordion .is-active .accordion-title .fa-chevron-down {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-accordion .accordion-content {
            padding: 0 24px 20px;
            display: none;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.85;
        }
        .faq-accordion .is-active .accordion-content {
            display: block;
        }
        /* CTA form */
        .cta-panel {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 48px 44px;
            max-width: 720px;
            margin: 0 auto;
        }
        .cta-panel h2 {
            font-weight: 800;
            font-size: 1.6rem;
            color: var(--text);
            margin: 0 0 12px;
        }
        .cta-panel p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin: 0 0 28px;
            line-height: 1.8;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--text);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-family: var(--font-sans);
            color: var(--text);
            background: #fff;
            transition: var(--transition);
            line-height: 1.5;
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(29,78,74,.1);
            outline: none;
        }
        .form-group textarea {
            resize: vertical;
            min-height: 100px;
        }
        .privacy-note {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 16px;
        }
        /* Footer */
        .site-footer {
            background: var(--text);
            color: var(--text-light);
            padding: 56px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand .brand {
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .footer-brand .brand:hover {
            color: var(--text-light);
        }
        .footer-brand p {
            color: rgba(244,240,234,.7);
            font-size: 0.88rem;
            line-height: 1.8;
            margin: 0;
        }
        .footer-col h4,
        .footer-contact h4 {
            color: var(--text-light);
            font-weight: 700;
            font-size: 1rem;
            margin: 0 0 16px;
        }
        .footer-col a {
            display: block;
            color: rgba(244,240,234,.7);
            font-size: 0.88rem;
            margin-bottom: 10px;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-contact p {
            color: rgba(244,240,234,.7);
            font-size: 0.88rem;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-contact i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(244,240,234,.15);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.82rem;
            color: rgba(244,240,234,.55);
        }
        /* Responsive */
        @media screen and (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .page-banner h1 { font-size: 2.1rem; }
        }
        @media screen and (max-width: 768px) {
            .nav-toggle { display: block; }
            .main-nav {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                box-shadow: var(--shadow-lg);
                padding: 12px 24px;
                border-top: 1px solid var(--border);
            }
            .main-nav.open { display: flex; }
            .main-nav a {
                padding: 14px 0;
                border-bottom: 1px solid var(--border);
                font-size: 1rem;
            }
            .main-nav a:last-child { border-bottom: none; }
            .main-nav a.active::after { display: none; }
            section { padding: var(--section-padding-mobile); }
            .section-title { font-size: 1.5rem; }
            .page-banner { padding: 48px 0 40px; }
            .page-banner h1 { font-size: 1.8rem; }
            .cta-panel { padding: 32px 24px; }
            .service-row { flex-direction: column; padding: 20px; gap: 12px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; gap: 4px; }
        }
        @media screen and (max-width: 520px) {
            .container { padding: 0 16px; }
            .section-title { font-size: 1.3rem; }
            .page-banner h1 { font-size: 1.5rem; }
            .metric-card .metric-num { font-size: 1.8rem; }
            .dest-card .card-img { height: 150px; }
        }

/* roulang page: category3 */
:root {
            --primary: #1D4E4A;
            --primary-dark: #143836;
            --primary-light: #2A6B65;
            --accent: #C8873D;
            --accent-hover: #B07630;
            --bg: #F4F0EA;
            --bg-card: #FFFFFF;
            --bg-soft: #EDE7DE;
            --text: #1F262A;
            --text-secondary: #5B656B;
            --text-light: #F4F0EA;
            --text-muted: #9AA5AB;
            --border: #E2DCD4;
            --border-strong: #C9C2B8;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(31,38,42,.05);
            --shadow-md: 0 4px 16px rgba(31,38,42,.06);
            --shadow-lg: 0 12px 32px rgba(31,38,42,.12);
            --shadow-xl: 0 24px 48px rgba(31,38,42,.14);
            --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-numeric: 'Inter', 'Noto Sans SC', sans-serif;
            --transition: all .25s ease;
            --container-max: 1200px;
            --section-padding: 72px 0;
            --section-padding-mobile: 44px 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            box-sizing: border-box;
        }
        *, *::before, *::after {
            box-sizing: inherit;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
            text-decoration: none;
        }
        a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 2px;
        }
        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-sans);
            color: var(--text);
            line-height: 1.35;
            margin: 0 0 16px;
            font-weight: 700;
        }
        h1 {
            font-size: 2.4rem;
            font-weight: 800;
        }
        h2 {
            font-size: 1.85rem;
            font-weight: 700;
        }
        h3 {
            font-size: 1.35rem;
            font-weight: 700;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 700;
        }
        p {
            margin: 0 0 16px;
            color: var(--text);
        }
        .text-secondary {
            color: var(--text-secondary);
        }
        .text-accent {
            color: var(--accent);
        }
        .text-primary {
            color: var(--primary);
        }
        .text-light {
            color: var(--text-light);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: var(--section-padding);
        }
        section.section-alt {
            background-color: var(--bg-soft);
        }
        section.section-dark {
            background-color: var(--text);
            color: var(--text-light);
        }
        section.section-dark h2,
        section.section-dark h3,
        section.section-dark h4,
        section.section-dark p {
            color: var(--text-light);
        }
        section.section-dark .text-secondary {
            color: var(--text-muted);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .section-title {
            max-width: 680px;
            margin-bottom: 20px;
        }
        .section-subtitle {
            max-width: 620px;
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            line-height: 1.9;
        }
        .section-divider {
            width: 56px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
            margin: 0 0 24px;
        }

        .btn {
            display: inline-block;
            font-family: var(--font-sans);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            line-height: 1.4;
            white-space: nowrap;
            text-decoration: none;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }
        .btn-accent {
            background-color: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-outline {
            background-color: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background-color: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }
        .btn-outline-light {
            background-color: transparent;
            color: var(--text-light);
            border-color: var(--text-light);
        }
        .btn-outline-light:hover {
            background-color: var(--text-light);
            color: var(--text);
        }
        .btn-sm {
            padding: 9px 20px;
            font-size: 0.85rem;
            border-radius: 6px;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
            border-radius: 10px;
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            overflow: hidden;
            border: 1px solid var(--border);
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: var(--border-strong);
        }
        .card-body {
            padding: 28px;
        }
        .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }
        .card-text {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.85;
            margin-bottom: 0;
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            background: var(--bg-soft);
            color: var(--primary);
            border: 1px solid var(--border);
        }
        .badge-accent {
            background: rgba(200, 135, 61, 0.1);
            color: var(--accent);
            border-color: rgba(200, 135, 61, 0.3);
        }
        .badge-primary {
            background: rgba(29, 78, 74, 0.08);
            color: var(--primary);
            border-color: rgba(29, 78, 74, 0.2);
        }

        .site-header {
            background-color: #fff;
            border-bottom: 1px solid var(--border);
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 8px rgba(31,38,42,.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-sans);
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--primary);
            white-space: nowrap;
            text-decoration: none;
        }
        .brand:hover {
            color: var(--primary-light);
        }
        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .main-nav a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 6px;
            transition: var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }
        .main-nav a:hover {
            color: var(--primary);
            background-color: rgba(29, 78, 74, 0.05);
        }
        .main-nav a.active {
            color: var(--primary);
            background-color: rgba(29, 78, 74, 0.08);
            font-weight: 700;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
            border-radius: 6px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background-color: rgba(29, 78, 74, 0.08);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            color: var(--text-muted);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        .category-hero {
            position: relative;
            padding: 72px 0 80px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(20, 56, 54, .92) 0%, rgba(20, 56, 54, .72) 50%, rgba(31, 38, 42, .55) 100%);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero h1 {
            color: var(--text-light);
            margin-bottom: 16px;
            max-width: 720px;
        }
        .category-hero .hero-subtitle {
            color: rgba(244, 240, 234, 0.85);
            font-size: 1.1rem;
            max-width: 620px;
            line-height: 1.9;
            margin-bottom: 24px;
        }
        .category-hero .breadcrumb {
            color: rgba(244, 240, 234, 0.7);
        }
        .category-hero .breadcrumb a {
            color: rgba(244, 240, 234, 0.7);
        }
        .category-hero .breadcrumb a:hover {
            color: var(--text-light);
        }
        .category-hero .breadcrumb .separator {
            color: rgba(244, 240, 234, 0.4);
        }
        .category-hero .breadcrumb .current {
            color: var(--accent);
        }

        .stats-dashboard {
            background-color: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 40px 32px;
            margin-top: -48px;
            position: relative;
            z-index: 3;
            border: 1px solid var(--border);
        }
        .stat-item {
            text-align: center;
            padding: 12px 16px;
        }
        .stat-number {
            font-family: var(--font-numeric);
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
            letter-spacing: 0.02em;
        }

        .region-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .region-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .region-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-strong);
        }
        .region-card-img {
            height: 180px;
            overflow: hidden;
            background-color: var(--bg-soft);
        }
        .region-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s ease;
        }
        .region-card:hover .region-card-img img {
            transform: scale(1.05);
        }
        .region-card-body {
            padding: 24px;
        }
        .region-card-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        .region-card-subtitle {
            font-size: 0.85rem;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 12px;
        }
        .region-card-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 16px;
        }
        .region-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .focus-market {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .focus-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .focus-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .focus-item-img {
            height: 200px;
            overflow: hidden;
            background-color: var(--bg-soft);
        }
        .focus-item-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .focus-item-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .focus-item-title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .focus-item-subtitle {
            font-size: 0.85rem;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 14px;
        }
        .focus-item-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            flex: 1;
        }
        .focus-item-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
        }
        .focus-item-list li {
            padding: 6px 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .focus-item-list li i {
            color: var(--primary);
            font-size: 0.8rem;
            margin-top: 6px;
        }

        .service-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .service-list-item {
            padding: 32px 28px;
            border-right: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .service-list-item:nth-child(3n) {
            border-right: none;
        }
        .service-list-item:nth-last-child(-n+3) {
            border-bottom: none;
        }
        .service-list-item:hover {
            background-color: rgba(29, 78, 74, 0.03);
        }
        .service-list-icon {
            width: 48px;
            height: 48px;
            background: rgba(29, 78, 74, 0.08);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            color: var(--primary);
            font-size: 1.3rem;
        }
        .service-list-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .service-list-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }

        .support-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .support-item {
            text-align: center;
            padding: 24px 16px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .support-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .support-item-icon {
            width: 56px;
            height: 56px;
            background: rgba(200, 135, 61, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            color: var(--accent);
            font-size: 1.5rem;
        }
        .support-item-title {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .support-item-text {
            font-size: 0.8rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        .case-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .case-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .case-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .case-card-img {
            height: 200px;
            overflow: hidden;
            background-color: var(--bg-soft);
        }
        .case-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .case-card-body {
            padding: 24px;
            flex: 1;
        }
        .case-card-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.7rem;
            font-weight: 700;
            background: rgba(29, 78, 74, 0.08);
            color: var(--primary);
            margin-bottom: 10px;
        }
        .case-card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .case-card-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }

        .faq-section {
            background-color: var(--bg-soft);
        }
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--text);
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            color: var(--primary);
            transition: transform .25s ease;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.8;
        }

        .cta-section {
            background-color: var(--text);
            color: var(--text-light);
        }
        .cta-section h2,
        .cta-section h3 {
            color: var(--text-light);
        }
        .cta-form-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px;
            box-shadow: var(--shadow-lg);
        }
        .cta-form-card .form-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            display: block;
        }
        .cta-form-card .form-input {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-sm);
            font-family: var(--font-sans);
            font-size: 0.95rem;
            color: var(--text);
            background: #fff;
            transition: var(--transition);
            margin-bottom: 16px;
        }
        .cta-form-card .form-input:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-color: var(--accent);
        }
        .cta-form-card textarea.form-input {
            min-height: 120px;
            resize: vertical;
        }
        .form-privacy {
            font-size: 0.8rem;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }
        .form-success {
            display: none;
            padding: 16px;
            background: rgba(29, 78, 74, 0.08);
            border: 1px solid rgba(29, 78, 74, 0.2);
            border-radius: var(--radius-sm);
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 16px;
        }

        .site-footer {
            background-color: var(--text);
            color: rgba(244, 240, 234, 0.75);
            padding: 56px 0 24px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 40px;
        }
        .site-footer .footer-brand .brand {
            color: var(--text-light);
            margin-bottom: 16px;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .site-footer .footer-brand p {
            font-size: 0.9rem;
            color: rgba(244, 240, 234, 0.65);
            line-height: 1.75;
            margin-bottom: 0;
        }
        .site-footer .footer-col h4 {
            color: var(--text-light);
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 700;
        }
        .site-footer .footer-col a {
            display: block;
            color: rgba(244, 240, 234, 0.65);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: var(--transition);
            text-decoration: none;
        }
        .site-footer .footer-col a:hover {
            color: var(--text-light);
        }
        .site-footer .footer-contact h4 {
            color: var(--text-light);
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 700;
        }
        .site-footer .footer-contact p {
            font-size: 0.9rem;
            color: rgba(244, 240, 234, 0.65);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer .footer-contact p i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }
        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(244, 240, 234, 0.1);
        }
        .site-footer .footer-bottom span {
            font-size: 0.8rem;
            color: rgba(244, 240, 234, 0.5);
        }

        @media (max-width: 1024px) {
            .service-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-list-item:nth-child(3n) {
                border-right: 1px solid var(--border);
            }
            .service-list-item:nth-child(2n) {
                border-right: none;
            }
            .service-list-item:nth-last-child(-n+3) {
                border-bottom: 1px solid var(--border);
            }
            .service-list-item:nth-last-child(-n+2) {
                border-bottom: none;
            }
            .support-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .focus-market {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            section {
                padding: var(--section-padding-mobile);
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .header-inner {
                height: 64px;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 12px 24px 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 16px;
                font-size: 1rem;
                border-radius: 6px;
            }
            .category-hero {
                padding: 48px 0 64px;
            }
            .category-hero h1 {
                font-size: 1.7rem;
            }
            .stats-dashboard {
                padding: 24px 16px;
                margin-top: -32px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .focus-market {
                grid-template-columns: 1fr;
            }
            .service-list {
                grid-template-columns: 1fr;
            }
            .service-list-item {
                border-right: none;
                border-bottom: 1px solid var(--border);
            }
            .service-list-item:nth-child(2n) {
                border-right: none;
            }
            .service-list-item:nth-last-child(-n+3) {
                border-bottom: 1px solid var(--border);
            }
            .service-list-item:last-child {
                border-bottom: none;
            }
            .support-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .case-list {
                grid-template-columns: 1fr;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .cta-form-card {
                padding: 20px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .brand {
                font-size: 1.05rem;
            }
            .brand-mark {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
                border-radius: 6px;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .category-hero .hero-subtitle {
                font-size: 0.95rem;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .stat-label {
                font-size: 0.75rem;
            }
            .support-grid {
                grid-template-columns: 1fr;
            }
            .focus-item-img {
                height: 160px;
            }
            .region-card-img {
                height: 150px;
            }
            .case-card-img {
                height: 160px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1D4E4A;
            --primary-dark: #143836;
            --primary-light: #2A6B65;
            --accent: #C8873D;
            --accent-hover: #B07630;
            --bg: #F4F0EA;
            --bg-card: #FFFFFF;
            --bg-soft: #EDE7DE;
            --text: #1F262A;
            --text-secondary: #5B656B;
            --text-light: #F4F0EA;
            --text-muted: #9AA5AB;
            --border: #E2DCD4;
            --border-strong: #C9C2B8;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(31,38,42,.05);
            --shadow-md: 0 4px 16px rgba(31,38,42,.06);
            --shadow-lg: 0 12px 32px rgba(31,38,42,.12);
            --shadow-xl: 0 24px 48px rgba(31,38,42,.14);
            --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-numeric: 'Inter', 'Noto Sans SC', sans-serif;
            --transition: all .25s ease;
            --container-max: 1200px;
            --section-padding: 72px 0;
            --section-padding-mobile: 44px 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 2px;
        }
        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-sans);
            color: var(--text);
            line-height: 1.35;
            margin-top: 0;
            font-weight: 700;
        }
        h1 { font-size: 2.75rem; font-weight: 800; }
        h2 { font-size: 2rem; font-weight: 800; }
        h3 { font-size: 1.25rem; font-weight: 700; }
        h4 { font-size: 1.05rem; font-weight: 700; }
        p { margin: 0 0 1rem; }
        .text-secondary { color: var(--text-secondary); }
        .text-accent { color: var(--accent); }
        .text-primary { color: var(--primary); }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: var(--section-padding);
        }
        section.section-alt {
            background-color: var(--bg-soft);
        }
        section.section-dark {
            background-color: var(--text);
            color: var(--text-light);
        }
        section.section-dark h2,
        section.section-dark h3,
        section.section-dark p {
            color: var(--text-light);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .section-title {
            max-width: 680px;
            margin-bottom: 20px;
        }
        .section-subtitle {
            max-width: 620px;
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            line-height: 1.9;
        }
        .section-divider {
            width: 56px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
            margin: 0 0 24px;
        }
        .btn {
            display: inline-block;
            font-family: var(--font-sans);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            line-height: 1.4;
            white-space: nowrap;
            background: none;
            appearance: none;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }
        .btn-accent {
            background-color: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-outline {
            background-color: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background-color: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }
        .btn-outline-light {
            background-color: transparent;
            color: var(--text-light);
            border-color: var(--text-light);
        }
        .btn-outline-light:hover {
            background-color: var(--text-light);
            color: var(--text);
        }
        .btn-sm {
            padding: 9px 20px;
            font-size: 0.85rem;
            border-radius: 6px;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
            border-radius: 10px;
        }
        .card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: var(--border-strong);
        }
        .card-body {
            padding: 28px;
        }
        .badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
            background: var(--bg-soft);
            color: var(--primary);
            letter-spacing: 0.03em;
            line-height: 1.5;
        }
        .badge-accent {
            background: rgba(200,135,61,.12);
            color: var(--accent);
        }
        .badge-primary {
            background: rgba(29,78,74,.1);
            color: var(--primary);
        }
        .divider {
            border: 0;
            border-top: 1px solid var(--border);
            margin: 24px 0;
        }
        /* Header */
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 24px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .brand:hover {
            color: var(--primary);
        }
        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: var(--transition);
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--primary);
            background: var(--bg-soft);
        }
        .main-nav a.active {
            color: var(--primary);
            background: rgba(29,78,74,.08);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text);
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            color: var(--primary);
            background: var(--bg-soft);
        }
        /* Category Banner */
        .category-banner {
            position: relative;
            background-image: url('/assets/images/1c4522f05066aeed.webp');
            background-size: cover;
            background-position: center;
            padding: 80px 0 64px;
            color: #fff;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(20,56,54,.92) 0%, rgba(29,78,74,.78) 40%, rgba(31,38,42,.55) 100%);
            z-index: 1;
        }
        .category-banner .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            margin-bottom: 28px;
            color: rgba(244,240,234,.75);
        }
        .breadcrumb a {
            color: rgba(244,240,234,.85);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb .separator {
            color: var(--accent);
            font-weight: 700;
        }
        .breadcrumb .current {
            color: #fff;
            font-weight: 700;
        }
        .category-banner h1 {
            color: #fff;
            font-size: 2.9rem;
            margin-bottom: 20px;
            max-width: 760px;
            font-weight: 800;
            line-height: 1.3;
        }
        .category-banner .banner-lead {
            color: rgba(244,240,234,.9);
            font-size: 1.08rem;
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 28px;
        }
        .banner-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .banner-tags span {
            background: rgba(244,240,234,.13);
            border: 1px solid rgba(244,240,234,.25);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 600;
            color: #fff;
            letter-spacing: 0.02em;
        }
        /* Research Areas */
        .area-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }
        .area-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .area-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--border-strong);
            transform: translateY(-2px);
        }
        .area-card .icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(29,78,74,.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 18px;
            flex-shrink: 0;
        }
        .area-card .area-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }
        .area-card .area-desc {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }
        .area-card.col-span-4 { grid-column: span 4; }
        .area-card.col-span-6 { grid-column: span 6; }
        .area-card.col-span-8 { grid-column: span 8; }
        .area-card.col-span-12 { grid-column: span 12; }
        .area-card.accent-border {
            border-top: 3px solid var(--accent);
        }
        .area-card.primary-border {
            border-top: 3px solid var(--primary);
        }
        /* Data board */
        .data-board {
            background: var(--text);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            box-shadow: var(--shadow-xl);
            color: var(--text-light);
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .data-item {
            text-align: left;
            padding: 8px 0;
        }
        .data-item .data-number {
            font-family: var(--font-numeric);
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }
        .data-item .data-label {
            color: rgba(244,240,234,.75);
            font-size: 0.92rem;
            font-weight: 500;
            line-height: 1.5;
        }
        .data-item .data-note {
            color: rgba(244,240,234,.5);
            font-size: 0.8rem;
            margin-top: 4px;
        }
        /* Reports list */
        .report-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .report-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .report-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--border-strong);
            transform: translateY(-2px);
        }
        .report-thumb {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-soft);
        }
        .report-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .report-card:hover .report-thumb img {
            transform: scale(1.04);
        }
        .report-thumb .report-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(29,78,74,.92);
            color: #fff;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.04em;
        }
        .report-body {
            padding: 22px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .report-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .report-title {
            font-size: 1.08rem;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text);
        }
        .report-summary {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.8;
            flex: 1;
            margin-bottom: 16px;
        }
        .report-link {
            font-weight: 700;
            font-size: 0.88rem;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
            margin-top: auto;
        }
        .report-link:hover {
            color: var(--accent);
            gap: 10px;
        }
        /* Methodology */
        .method-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
            counter-reset: method;
        }
        .method-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 26px 24px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
        }
        .method-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-strong);
            transform: translateY(-2px);
        }
        .method-step {
            font-family: var(--font-numeric);
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 16px;
            display: block;
        }
        .method-title {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .method-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }
        /* Findings */
        .findings-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
        }
        .findings-left {
            padding: 40px;
            background: linear-gradient(160deg, #F9F6F1 0%, var(--bg-soft) 100%);
            border-right: 1px solid var(--border);
        }
        .findings-right {
            padding: 40px;
            background: var(--bg-card);
        }
        .finding-item {
            display: flex;
            flex-direction: column;
            margin-bottom: 24px;
            padding-bottom: 22px;
            border-bottom: 1px solid var(--border);
        }
        .finding-item:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }
        .finding-label {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-secondary);
            margin-bottom: 6px;
            letter-spacing: 0.04em;
        }
        .finding-value {
            font-family: var(--font-numeric);
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 6px;
        }
        .finding-value span.accent {
            color: var(--accent);
        }
        .finding-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            background: var(--bg-card);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item.active {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
            background: var(--bg-soft);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 1.1rem;
            color: var(--accent);
            transition: transform .3s ease;
        }
        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 22px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.85;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
            animation: faqFadeIn .3s ease;
        }
        @keyframes faqFadeIn {
            from { opacity: 0; transform: translateY(-4px); }
            to { opacity: 1; transform: translateY(0); }
        }
        /* CTA Form */
        .cta-form-wrap {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-lg);
            display: grid;
            grid-template-columns: 1fr 1fr;
        }
        .cta-form-left {
            padding: 44px 40px;
            background: linear-gradient(145deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            color: var(--text-light);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .cta-form-left h2 {
            color: #fff;
            font-size: 1.8rem;
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .cta-form-left p {
            color: rgba(244,240,234,.85);
            line-height: 1.85;
            font-size: 0.98rem;
            margin-bottom: 24px;
        }
        .cta-benefits {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .cta-benefits li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 14px;
            font-size: 0.92rem;
            color: rgba(244,240,234,.88);
        }
        .cta-benefits li i {
            color: var(--accent);
            margin-top: 5px;
            font-size: 1rem;
        }
        .cta-form-right {
            padding: 44px 40px;
            background: var(--bg-card);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-weight: 700;
            font-size: 0.9rem;
            margin-bottom: 8px;
            color: var(--text);
        }
        .form-control {
            display: block;
            width: 100%;
            padding: 12px 16px;
            font-family: var(--font-sans);
            font-size: 0.95rem;
            color: var(--text);
            background: #fff;
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            appearance: none;
            line-height: 1.5;
        }
        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(29,78,74,.1);
            outline: none;
        }
        .form-control::placeholder {
            color: var(--text-muted);
        }
        textarea.form-control {
            resize: vertical;
            min-height: 120px;
        }
        .privacy-note {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 12px;
            line-height: 1.7;
        }
        /* Footer */
        .site-footer {
            background: var(--text);
            color: rgba(244,240,234,.8);
            padding: 64px 0 28px;
        }
        .site-footer h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: 0.03em;
        }
        .site-footer a {
            color: rgba(244,240,234,.75);
            font-size: 0.9rem;
            display: block;
            margin-bottom: 10px;
            transition: var(--transition);
        }
        .site-footer a:hover {
            color: #fff;
            text-decoration: none;
        }
        .site-footer p {
            color: rgba(244,240,234,.7);
            font-size: 0.88rem;
            line-height: 1.8;
            margin-bottom: 10px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 36px;
            margin-bottom: 40px;
        }
        .footer-brand .brand {
            color: #fff;
            margin-bottom: 16px;
            font-size: 1.2rem;
        }
        .footer-brand .brand:hover {
            color: var(--accent);
        }
        .footer-contact i {
            color: var(--accent);
            margin-right: 6px;
            width: 18px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(244,240,234,.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(244,240,234,.5);
        }
        /* Responsive */
        @media screen and (max-width: 64em) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.7rem; }
            section { padding: var(--section-padding-mobile); }
            .category-banner { padding: 56px 0 44px; min-height: auto; }
            .category-banner h1 { font-size: 2.1rem; }
            .area-card.col-span-4,
            .area-card.col-span-6,
            .area-card.col-span-8 { grid-column: span 6; }
            .area-card.col-span-12 { grid-column: span 12; }
            .data-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .data-item .data-number { font-size: 2rem; }
            .report-list { grid-template-columns: repeat(2, 1fr); }
            .method-list { grid-template-columns: repeat(2, 1fr); }
            .cta-form-wrap { grid-template-columns: 1fr; }
            .cta-form-left { padding: 32px 28px; }
            .cta-form-right { padding: 32px 28px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
        }
        @media screen and (max-width: 39.9375em) {
            .header-inner { min-height: 60px; flex-wrap: wrap; }
            .nav-toggle { display: block; }
            .main-nav {
                display: none;
                flex-direction: column;
                align-items: stretch;
                width: 100%;
                padding: 12px 0 16px;
                gap: 4px;
                border-top: 1px solid var(--border);
                margin-top: 4px;
            }
            .main-nav.open { display: flex; }
            .main-nav a {
                padding: 12px 4px;
                font-size: 0.95rem;
                border-radius: 8px;
            }
            .brand { font-size: 1.05rem; }
            .brand-mark { width: 34px; height: 34px; font-size: 0.95rem; }
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.45rem; }
            section { padding: 40px 0; }
            .container { padding: 0 16px; }
            .category-banner { padding: 40px 0 32px; }
            .category-banner h1 { font-size: 1.65rem; }
            .category-banner .banner-lead { font-size: 0.95rem; }
            .area-grid { grid-template-columns: 1fr; gap: 16px; }
            .area-card.col-span-4,
            .area-card.col-span-6,
            .area-card.col-span-8,
            .area-card.col-span-12 { grid-column: span 1; }
            .data-grid { grid-template-columns: 1fr; gap: 18px; }
            .data-board { padding: 28px 22px; }
            .data-item .data-number { font-size: 1.8rem; }
            .report-list { grid-template-columns: 1fr; gap: 20px; }
            .method-list { grid-template-columns: 1fr; gap: 16px; }
            .findings-panel { grid-template-columns: 1fr; }
            .findings-left { padding: 28px 22px; border-right: none; border-bottom: 1px solid var(--border); }
            .findings-right { padding: 28px 22px; }
            .cta-form-wrap { grid-template-columns: 1fr; border-radius: var(--radius-md); }
            .cta-form-left { padding: 28px 20px; }
            .cta-form-right { padding: 28px 20px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .btn-lg { padding: 13px 28px; font-size: 0.95rem; }
        }
        @media screen and (max-width: 25em) {
            h1 { font-size: 1.5rem; }
            h2 { font-size: 1.3rem; }
            .container, .container-wide { padding: 0 12px; }
        }

/* roulang page: category6 */
:root {
            --primary: #1D4E4A;
            --primary-dark: #143836;
            --primary-light: #2A6B65;
            --accent: #C8873D;
            --accent-hover: #B07630;
            --bg: #F4F0EA;
            --bg-card: #FFFFFF;
            --bg-soft: #EDE7DE;
            --text: #1F262A;
            --text-secondary: #5B656B;
            --text-light: #F4F0EA;
            --text-muted: #9AA5AB;
            --border: #E2DCD4;
            --border-strong: #C9C2B8;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(31,38,42,.05);
            --shadow-md: 0 4px 16px rgba(31,38,42,.06);
            --shadow-lg: 0 12px 32px rgba(31,38,42,.12);
            --shadow-xl: 0 24px 48px rgba(31,38,42,.14);
            --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-numeric: 'Inter', 'Noto Sans SC', sans-serif;
            --transition: all .25s ease;
            --container-max: 1200px;
            --section-padding: 72px 0;
            --section-padding-mobile: 44px 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 2px;
        }
        .text-secondary { color: var(--text-secondary); }
        .text-accent { color: var(--accent); }
        .text-primary { color: var(--primary); }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: var(--section-padding);
        }
        section.section-alt {
            background-color: var(--bg-soft);
        }
        section.section-dark {
            background-color: var(--text);
            color: var(--text-light);
        }
        section.section-dark h2,
        section.section-dark h3,
        section.section-dark p {
            color: var(--text-light);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .section-title {
            max-width: 680px;
            margin-bottom: 20px;
        }
        .section-subtitle {
            max-width: 620px;
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            line-height: 1.9;
        }
        .section-divider {
            width: 56px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
            margin: 0 0 24px;
        }
        .btn {
            display: inline-block;
            font-family: var(--font-sans);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            line-height: 1.4;
            white-space: nowrap;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }
        .btn-accent {
            background-color: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-outline {
            background-color: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background-color: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }
        .btn-outline-light {
            background-color: transparent;
            color: var(--text-light);
            border-color: var(--text-light);
        }
        .btn-outline-light:hover {
            background-color: var(--text-light);
            color: var(--text);
        }
        .btn-sm {
            padding: 9px 20px;
            font-size: 0.85rem;
            border-radius: 6px;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
            border-radius: 10px;
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--border-strong);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            flex-wrap: wrap;
        }
        .site-header {
            background: #fff;
            box-shadow: 0 1px 12px rgba(31,38,42,.06);
            position: relative;
            z-index: 50;
            border-bottom: 1px solid var(--border);
        }
        .site-header .brand {
            font-weight: 800;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.02em;
        }
        .site-header .brand:hover {
            color: var(--primary);
        }
        .brand-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 22px;
            flex-wrap: wrap;
        }
        .main-nav a {
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 10px;
            border-radius: 6px;
            position: relative;
        }
        .main-nav a:hover {
            color: var(--primary);
            background: var(--bg-soft);
        }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 700;
        }
        .main-nav a.active::after {
            content: "";
            position: absolute;
            bottom: 3px;
            left: 10px;
            right: 10px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 1.2rem;
            color: var(--text);
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }
        .breadcrumb-bar {
            background: var(--bg-soft);
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb-bar .container {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }
        .breadcrumb-bar a {
            color: var(--text-secondary);
        }
        .breadcrumb-bar a:hover {
            color: var(--primary);
        }
        .breadcrumb-bar .current {
            color: var(--text);
            font-weight: 600;
        }
        .resource-hero {
            padding: 40px 0 48px;
            background: linear-gradient(135deg, rgba(29,78,74,.04) 0%, rgba(200,135,61,.04) 100%);
            border-bottom: 1px solid var(--border);
        }
        .resource-hero-inner {
            display: grid;
            grid-template-columns: 1.2fr .8fr;
            gap: 40px;
            align-items: center;
        }
        .resource-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 30px;
            letter-spacing: 0.06em;
            margin-bottom: 16px;
        }
        .resource-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            color: var(--text);
        }
        .resource-hero .lead {
            font-size: 1.08rem;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 24px;
            max-width: 620px;
        }
        .resource-hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .resource-progress-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
        }
        .resource-progress-card h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }
        .resource-progress-card .progress-numbers {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 8px;
        }
        .resource-progress-card .progress-track {
            height: 10px;
            background: var(--bg-soft);
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 16px;
        }
        .resource-progress-card .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 10px;
            width: 72%;
        }
        .resource-progress-card .progress-note {
            font-size: 0.82rem;
            color: var(--text-secondary);
            margin-bottom: 16px;
            line-height: 1.6;
        }
        .resource-hero .background-image {
            display: none;
        }
        .pill-nav-row {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }
        .pill-nav-row .container {
            display: flex;
            gap: 12px;
            overflow-x: auto;
            padding-bottom: 4px;
            scrollbar-width: thin;
            scrollbar-color: var(--border-strong) transparent;
        }
        .pill-nav-row .container::-webkit-scrollbar {
            height: 4px;
        }
        .pill-nav-row .container::-webkit-scrollbar-thumb {
            background: var(--border-strong);
            border-radius: 10px;
        }
        .pill-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.86rem;
            font-weight: 600;
            color: var(--text-secondary);
            background: var(--bg);
            border: 1px solid var(--border);
            white-space: nowrap;
            transition: var(--transition);
        }
        .pill-link:hover {
            background: var(--bg-soft);
            color: var(--primary);
            border-color: var(--border-strong);
        }
        .pill-link.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .resource-card {
            display: flex;
            flex-direction: column;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .resource-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--border-strong);
        }
        .resource-card .card-image {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .resource-card .card-image .tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 30px;
        }
        .resource-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .resource-card .card-body h3 {
            font-size: 1.12rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
            line-height: 1.5;
        }
        .resource-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 16px;
            flex: 1;
        }
        .resource-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }
        .resource-card .card-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .metric-card {
            background: rgba(255,255,255,.06);
            border: 1px solid rgba(255,255,255,.12);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: var(--transition);
        }
        .metric-card:hover {
            background: rgba(255,255,255,.1);
            transform: translateY(-2px);
        }
        .metric-card .metric-number {
            font-family: var(--font-numeric);
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 8px;
        }
        .metric-card .metric-label {
            font-size: 0.92rem;
            color: var(--text-light);
            opacity: .85;
            font-weight: 500;
        }
        .metric-card .metric-note {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 6px;
        }
        .tool-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .tool-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .tool-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--border-strong);
        }
        .tool-item .tool-icon {
            width: 44px;
            height: 44px;
            background: var(--bg-soft);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .tool-item h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }
        .tool-item p {
            font-size: 0.86rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .market-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .market-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 20px;
            border: 1px solid var(--border);
            text-align: center;
            transition: var(--transition);
        }
        .market-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .market-card .market-icon {
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .market-card h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .market-card p {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }
        .news-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .news-card .news-image {
            height: 160px;
            background-size: cover;
            background-position: center;
        }
        .news-card .news-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .news-date {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        .news-card h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.5;
            color: var(--text);
        }
        .news-card p {
            font-size: 0.86rem;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 0;
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-strong);
        }
        .faq-item .faq-question {
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 700;
            font-size: 0.98rem;
            color: var(--text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
        }
        .faq-item .faq-question .faq-icon {
            color: var(--accent);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.85;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 18px;
        }
        .cta-card {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
        }
        .cta-card .cta-content h2 {
            color: #fff;
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-card .cta-content p {
            color: rgba(244,240,234,.85);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .cta-form .form-row {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .cta-form input,
        .cta-form select {
            flex: 1;
            min-width: 120px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255,255,255,.25);
            background: rgba(255,255,255,.1);
            color: #fff;
            font-family: var(--font-sans);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .cta-form input::placeholder {
            color: rgba(244,240,234,.6);
        }
        .cta-form input:focus,
        .cta-form select:focus {
            background: rgba(255,255,255,.18);
            border-color: rgba(255,255,255,.5);
            outline: none;
        }
        .cta-form select option {
            color: var(--text);
        }
        .cta-form .privacy-note {
            font-size: 0.75rem;
            color: rgba(244,240,234,.65);
            text-align: center;
        }
        .site-footer {
            background: var(--text);
            color: var(--text-light);
            padding: 56px 0 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 1.2fr;
            gap: 36px;
            padding-bottom: 36px;
        }
        .site-footer .brand {
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .site-footer .brand:hover {
            color: var(--accent);
        }
        .site-footer .footer-brand p {
            font-size: 0.86rem;
            color: rgba(244,240,234,.7);
            line-height: 1.8;
        }
        .site-footer .footer-col h4,
        .site-footer .footer-contact h4 {
            font-size: 0.92rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }
        .site-footer .footer-col a,
        .site-footer .footer-contact p {
            display: block;
            font-size: 0.86rem;
            color: rgba(244,240,234,.7);
            margin-bottom: 10px;
            line-height: 1.6;
            transition: var(--transition);
        }
        .site-footer .footer-col a:hover {
            color: var(--accent);
        }
        .site-footer .footer-contact p {
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .site-footer .footer-contact i {
            color: var(--accent);
            margin-top: 4px;
            flex-shrink: 0;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,.12);
            padding: 18px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.8rem;
            color: rgba(244,240,234,.55);
        }
        @media (max-width: 1024px) {
            .resource-grid,
            .news-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-grid,
            .market-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .resource-hero-inner {
                grid-template-columns: 1fr;
            }
            .cta-card {
                grid-template-columns: 1fr;
                padding: 32px 28px;
            }
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
                width: 100%;
                padding: 16px 0;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                padding: 10px 12px;
                border-radius: 6px;
            }
            .main-nav a.active::after {
                display: none;
            }
            .main-nav a.active {
                background: var(--bg-soft);
            }
            .resource-hero h1 {
                font-size: 2rem;
            }
            .resource-grid,
            .news-list,
            .tool-list,
            .metrics-grid,
            .market-grid {
                grid-template-columns: 1fr;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
            }
            section {
                padding: var(--section-padding-mobile);
            }
        }
        @media (max-width: 520px) {
            .resource-hero h1 {
                font-size: 1.7rem;
            }
            .resource-hero .lead {
                font-size: 0.98rem;
            }
            .resource-hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .btn {
                white-space: normal;
            }
            .cta-form .form-row {
                flex-direction: column;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1D4E4A;
            --primary-dark: #143836;
            --primary-light: #2A6B65;
            --accent: #C8873D;
            --accent-hover: #B07630;
            --bg: #F4F0EA;
            --bg-card: #FFFFFF;
            --bg-soft: #EDE7DE;
            --text: #1F262A;
            --text-secondary: #5B656B;
            --text-light: #F4F0EA;
            --text-muted: #9AA5AB;
            --border: #E2DCD4;
            --border-strong: #C9C2B8;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(31,38,42,.05);
            --shadow-md: 0 4px 16px rgba(31,38,42,.06);
            --shadow-lg: 0 12px 32px rgba(31,38,42,.12);
            --shadow-xl: 0 24px 48px rgba(31,38,42,.14);
            --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-numeric: 'Inter', 'Noto Sans SC', sans-serif;
            --transition: all .25s ease;
            --container-max: 1200px;
            --section-padding: 72px 0;
            --section-padding-mobile: 44px 0;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 2px;
        }
        .text-secondary {
            color: var(--text-secondary);
        }
        .text-accent {
            color: var(--accent);
        }
        .text-primary {
            color: var(--primary);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: var(--section-padding);
        }
        section.section-alt {
            background-color: var(--bg-soft);
        }
        section.section-dark {
            background-color: var(--text);
            color: var(--text-light);
        }
        section.section-dark h2,
        section.section-dark h3,
        section.section-dark p {
            color: var(--text-light);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .section-title {
            max-width: 680px;
            margin-bottom: 20px;
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.35;
            color: var(--text);
        }
        .section-subtitle {
            max-width: 620px;
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            line-height: 1.9;
        }
        .section-divider {
            width: 56px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
            margin: 0 0 24px;
        }
        .btn {
            display: inline-block;
            font-family: var(--font-sans);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            line-height: 1.4;
            white-space: nowrap;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }
        .btn-accent {
            background-color: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-outline {
            background-color: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background-color: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }
        .btn-outline-light {
            background-color: transparent;
            color: var(--text-light);
            border-color: var(--text-light);
        }
        .btn-outline-light:hover {
            background-color: var(--text-light);
            color: var(--text);
        }
        .btn-sm {
            padding: 9px 20px;
            font-size: 0.85rem;
            border-radius: 6px;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
            border-radius: 10px;
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            background: var(--bg-soft);
            color: var(--text-secondary);
        }
        .badge-primary {
            background: var(--primary);
            color: #fff;
        }
        .badge-accent {
            background: var(--accent);
            color: #fff;
        }
        .tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 4px;
            font-size: 0.78rem;
            font-weight: 500;
            background: var(--bg-soft);
            color: var(--text-secondary);
            margin-right: 6px;
            margin-bottom: 6px;
        }
        /* Header */
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(31,38,42,.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text);
        }
        .brand:hover {
            color: var(--primary);
        }
        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            border-radius: 10px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .main-nav a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.92rem;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .main-nav a:hover {
            color: var(--primary);
            background: var(--bg-soft);
        }
        .main-nav a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 700;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text);
            cursor: pointer;
            padding: 8px;
            border-radius: 6px;
        }
        /* Hero banner */
        .hero-banner {
            position: relative;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 80px 0 64px;
            min-height: 380px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(29,78,74,.92) 0%, rgba(20,56,54,.78) 100%);
        }
        .hero-banner .container {
            position: relative;
            z-index: 2;
        }
        .hero-banner h1 {
            color: #fff;
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            max-width: 720px;
        }
        .hero-banner .hero-subtitle {
            color: rgba(244,240,234,.9);
            font-size: 1.1rem;
            max-width: 600px;
            line-height: 1.85;
            margin-bottom: 24px;
        }
        .hero-banner .badge {
            background: rgba(200,135,61,.22);
            color: #F4E5D3;
            border: 1px solid rgba(200,135,61,.45);
            margin-bottom: 16px;
        }
        /* Data strip */
        .data-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: -40px;
            position: relative;
            z-index: 3;
        }
        .data-card {
            flex: 1 1 200px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            box-shadow: var(--shadow-md);
            text-align: center;
        }
        .data-card .data-number {
            font-family: var(--font-numeric);
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .data-card .data-number span {
            color: var(--accent);
        }
        .data-card .data-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 6px;
            font-weight: 500;
        }
        /* Region cards */
        .region-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .region-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .region-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .region-card .region-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .region-card .region-img .region-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--primary);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
        }
        .region-card .region-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .region-card .region-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }
        .region-card .region-body p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.75;
            flex: 1;
            margin-bottom: 16px;
        }
        .region-card .region-body .region-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }
        .region-card .region-body .region-meta i {
            color: var(--primary);
            margin-right: 4px;
        }
        /* Service list */
        .service-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .service-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            background: var(--bg-card);
            padding: 22px 26px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border-left: 4px solid transparent;
        }
        .service-item:hover {
            border-left-color: var(--accent);
            box-shadow: var(--shadow-md);
        }
        .service-item .service-icon {
            width: 48px;
            height: 48px;
            flex-shrink: 0;
            background: var(--bg-soft);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--primary);
        }
        .service-item .service-content h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }
        .service-item .service-content p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.75;
        }
        /* Result comparison */
        .result-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .result-panel {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-md);
        }
        .result-panel h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .result-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
        }
        .result-item:last-child {
            border-bottom: none;
        }
        .result-item .result-label {
            font-weight: 500;
            color: var(--text-secondary);
            font-size: 0.92rem;
        }
        .result-item .result-value {
            font-weight: 700;
            font-family: var(--font-numeric);
            font-size: 1.1rem;
            color: var(--primary);
        }
        .result-item .result-value.highlight {
            color: var(--accent);
            font-size: 1.3rem;
        }
        /* News list */
        .news-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .news-card .news-img {
            height: 180px;
            background-size: cover;
            background-position: center;
        }
        .news-card .news-body {
            padding: 20px 24px;
        }
        .news-card .news-body .news-date {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: inline-block;
        }
        .news-card .news-body h3 {
            font-size: 1rem;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text);
        }
        .news-card .news-body p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }
        /* Assurance block */
        .assurance-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }
        .assurance-item {
            text-align: center;
            padding: 24px 18px;
            background: rgba(255,255,255,.05);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,.1);
        }
        .assurance-item i {
            font-size: 1.8rem;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .assurance-item h4 {
            font-size: 0.98rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 8px;
        }
        .assurance-item p {
            font-size: 0.85rem;
            color: rgba(244,240,234,.7);
            margin-bottom: 0;
            line-height: 1.7;
        }
        /* FAQ accordion */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .accordion {
            margin: 0;
            list-style: none;
        }
        .accordion-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .accordion-title {
            display: block;
            padding: 20px 24px;
            font-weight: 700;
            font-size: 0.98rem;
            color: var(--text);
            cursor: pointer;
            border-bottom: none;
            position: relative;
        }
        .accordion-title::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: 24px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .accordion-item.is-active .accordion-title::after {
            transform: translateY(-50%) rotate(180deg);
            color: var(--accent);
        }
        .accordion-content {
            display: none;
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.8;
        }
        .accordion-item.is-active .accordion-content {
            display: block;
        }
        /* CTA form */
        .cta-form-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-lg);
            max-width: 720px;
            margin: 0 auto;
        }
        .cta-form-card form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }
        .cta-form-card .form-group {
            display: flex;
            flex-direction: column;
        }
        .cta-form-card .form-group label {
            font-size: 0.88rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text);
        }
        .cta-form-card .form-group input,
        .cta-form-card .form-group textarea {
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-family: var(--font-sans);
            font-size: 0.95rem;
            transition: var(--transition);
            background: var(--bg);
            color: var(--text);
        }
        .cta-form-card .form-group input:focus,
        .cta-form-card .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(29,78,74,.08);
        }
        .cta-form-card .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .cta-form-card .form-full {
            grid-column: 1 / -1;
        }
        .cta-form-card .privacy-note {
            grid-column: 1 / -1;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: -6px;
        }
        .cta-form-card .btn-submit {
            grid-column: 1 / -1;
            justify-self: start;
            padding: 14px 36px;
            font-size: 1rem;
        }
        /* Footer */
        .site-footer {
            background: var(--text);
            color: rgba(244,240,234,.8);
            padding: 56px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand .brand {
            color: #fff;
            font-size: 1.25rem;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            color: rgba(244,240,234,.65);
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: rgba(244,240,234,.7);
            font-size: 0.88rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-contact h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-contact p {
            font-size: 0.88rem;
            color: rgba(244,240,234,.7);
            margin-bottom: 8px;
        }
        .footer-contact i {
            color: var(--accent);
            margin-right: 6px;
            width: 16px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(244,240,234,.15);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(244,240,234,.5);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .result-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .cta-form-card form {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-padding: 44px 0;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                gap: 2px;
                padding-top: 12px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                padding: 10px 14px;
            }
            .hero-banner {
                padding: 48px 0 40px;
                min-height: 300px;
            }
            .hero-banner h1 {
                font-size: 1.7rem;
            }
            .hero-banner .hero-subtitle {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .data-strip {
                margin-top: -30px;
                gap: 12px;
            }
            .data-card {
                padding: 18px 16px;
                flex: 1 1 140px;
            }
            .data-card .data-number {
                font-size: 1.7rem;
            }
            .region-grid {
                grid-template-columns: 1fr;
            }
            .cta-form-card {
                padding: 24px 20px;
            }
        }
        @media (max-width: 520px) {
            .container,
            .container-wide {
                padding: 0 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .data-strip {
                gap: 8px;
            }
            .data-card {
                flex: 1 1 100%;
                padding: 14px;
            }
            .service-item {
                flex-direction: column;
                gap: 12px;
                padding: 18px;
            }
            .hero-banner h1 {
                font-size: 1.4rem;
            }
            .cta-form-card .btn-submit {
                width: 100%;
                justify-self: stretch;
                text-align: center;
            }
            .accordion-title {
                padding: 16px 18px;
                font-size: 0.9rem;
            }
            .accordion-content {
                padding: 0 18px 16px;
                font-size: 0.88rem;
            }
        }