/* roulang page: index */
:root {
            --primary: #00A86B;
            --primary-dark: #008F5B;
            --primary-light: #E6F7F0;
            --accent: #FF6B00;
            --accent-dark: #E55E00;
            --bg-white: #FFFFFF;
            --bg-light: #F5F7FA;
            --bg-lighter: #F8FAFC;
            --text-dark: #1E293B;
            --text-mid: #334155;
            --text-light: #64748B;
            --text-lighter: #94A3B8;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.18);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.25s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-dark);
            background: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            transition: all var(--transition-fast);
        }
        input,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            outline: none;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        input:focus,
        textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 168, 107, 0.12);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 1rem;
            }
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            height: 64px;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 1.5rem;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .header-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            flex-wrap: wrap;
        }
        .header-nav a {
            display: block;
            padding: 0.45rem 0.85rem;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-mid);
            white-space: nowrap;
            transition: all var(--transition-fast);
        }
        .header-nav a:hover,
        .header-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
        }
        .header-search {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }
        .header-search input {
            width: 180px;
            padding: 0.5rem 0.9rem;
            border: 1px solid var(--border);
            border-radius: 24px;
            font-size: 0.875rem;
            background: var(--bg-light);
            color: var(--text-dark);
            transition: all var(--transition-fast);
        }
        .header-search input:focus {
            border-color: var(--primary);
            background: #fff;
            width: 220px;
        }
        .header-cta-btn {
            padding: 0.55rem 1.3rem;
            background: var(--primary);
            color: #fff;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .header-cta-btn:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            padding: 0.4rem;
            cursor: pointer;
        }
        @media (max-width: 1024px) {
            .header-nav {
                gap: 0;
            }
            .header-nav a {
                padding: 0.4rem 0.55rem;
                font-size: 0.8rem;
            }
            .header-search input {
                width: 130px;
            }
            .header-search input:focus {
                width: 160px;
            }
        }
        @media (max-width: 768px) {
            .header-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 1rem;
                border-bottom: 2px solid var(--border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
                gap: 0.3rem;
            }
            .header-nav.open {
                display: flex;
            }
            .header-nav a {
                padding: 0.7rem 1rem;
                font-size: 0.95rem;
                border-radius: var(--radius-sm);
            }
            .header-search {
                display: none;
            }
            .header-search.mobile-open {
                display: flex;
                position: absolute;
                top: calc(64px + 100%);
                left: 0;
                right: 0;
                padding: 0.8rem 1rem;
                background: #fff;
                border-bottom: 1px solid var(--border);
                z-index: 998;
            }
            .header-search.mobile-open input {
                width: 100%;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .header-cta-btn {
                font-size: 0.8rem;
                padding: 0.45rem 1rem;
            }
        }

        /* Section spacing */
        .section {
            padding: 4rem 0;
        }
        @media (max-width: 768px) {
            .section {
                padding: 2.5rem 0;
            }
        }
        .section-sm {
            padding: 2.5rem 0;
        }
        .section-lg {
            padding: 5rem 0;
        }

        /* Hero Bento */
        .hero-bento {
            position: relative;
            background: linear-gradient(135deg, #0a1f14 0%, #0d3320 30%, #0a2218 60%, #0f1e16 100%);
            color: #fff;
            padding: 4rem 0 5rem;
            overflow: hidden;
        }
        .hero-bento::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.35;
            z-index: 0;
        }
        .hero-bento::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 60% 40%, rgba(0, 168, 107, 0.25) 0%, transparent 60%),
                radial-gradient(ellipse at 30% 70%, rgba(255, 107, 0, 0.12) 0%, transparent 50%);
            z-index: 1;
        }
        .hero-bento .container {
            position: relative;
            z-index: 2;
        }
        .bento-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            grid-template-rows: auto auto;
            gap: 1.25rem;
            align-items: stretch;
        }
        .bento-main {
            grid-row: 1 / 3;
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: var(--radius-xl);
            padding: 2.5rem 2.5rem;
            border: 1px solid rgba(255, 255, 255, 0.18);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .bento-main h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }
        .bento-main h1 .highlight {
            color: #00e89c;
        }
        .bento-main .hero-desc {
            font-size: 1.1rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 1.5rem;
            max-width: 520px;
        }
        .bento-main .hero-stats-row {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            margin-bottom: 1.5rem;
        }
        .bento-main .hero-stat {
            text-align: left;
        }
        .bento-main .hero-stat .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #00e89c;
            line-height: 1;
        }
        .bento-main .hero-stat .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.3rem;
        }
        .bento-sub {
            background: rgba(255, 255, 255, 0.07);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-radius: var(--radius-lg);
            padding: 1.5rem 1.8rem;
            border: 1px solid rgba(255, 255, 255, 0.14);
            display: flex;
            align-items: center;
            gap: 1rem;
            transition: all var(--transition-normal);
        }
        .bento-sub:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }
        .bento-sub .sub-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(0, 168, 107, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            flex-shrink: 0;
        }
        .bento-sub .sub-info h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.2rem;
        }
        .bento-sub .sub-info p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin: 0;
        }
        .bento-cta-strip {
            margin-top: 1.5rem;
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .bento-cta-strip .btn-primary-lg {
            padding: 0.85rem 2.2rem;
            background: var(--accent);
            color: #fff;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .bento-cta-strip .btn-primary-lg:hover {
            background: var(--accent-dark);
            box-shadow: 0 6px 20px rgba(255, 107, 0, 0.4);
            transform: translateY(-2px);
        }
        .bento-cta-strip .btn-outline-lg {
            padding: 0.85rem 2.2rem;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .bento-cta-strip .btn-outline-lg:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        @media (max-width: 768px) {
            .bento-grid {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
            }
            .bento-main {
                grid-row: auto;
                padding: 2rem 1.5rem;
            }
            .bento-main h1 {
                font-size: 2rem;
            }
            .bento-main .hero-stats-row {
                gap: 1.2rem;
            }
            .bento-main .hero-stat .stat-num {
                font-size: 1.6rem;
            }
            .bento-sub {
                padding: 1.2rem 1.3rem;
            }
            .hero-bento {
                padding: 2.5rem 0 3rem;
            }
        }

        /* Card base */
        .card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: #d1dbe8;
        }
        .card-body {
            padding: 1.5rem;
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
        }

        /* Section titles */
        .section-title {
            text-align: center;
            margin-bottom: 2.5rem;
        }
        .section-title h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.6rem;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 650px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .section-title h2 {
                font-size: 1.5rem;
            }
            .section-title p {
                font-size: 0.95rem;
            }
        }

        /* Buttons */
        .btn {
            display: inline-block;
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            text-align: center;
            cursor: pointer;
            border: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: 0 6px 18px rgba(255, 107, 0, 0.35);
            transform: translateY(-2px);
        }

        /* Badge */
        .badge {
            display: inline-block;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .badge-green {
            background: var(--primary-light);
            color: var(--primary);
        }
        .badge-orange {
            background: #FFF3E8;
            color: var(--accent);
        }

        /* Metrics dashboard */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }
        .metric-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 1.5rem 1.3rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .metric-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .metric-card .metric-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 0.6rem;
        }
        .metric-card .metric-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1;
        }
        .metric-card .metric-num.accent {
            color: var(--accent);
        }
        .metric-card .metric-label {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 0.4rem;
        }
        @media (max-width: 768px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.8rem;
            }
            .metric-card {
                padding: 1.2rem 1rem;
            }
            .metric-card .metric-num {
                font-size: 1.8rem;
            }
        }

        /* Coupon / package grid */
        .package-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .package-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 2rem 1.8rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .package-card.featured {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 168, 107, 0.1);
        }
        .package-card.featured::before {
            content: '热门推荐';
            position: absolute;
            top: 14px;
            right: -30px;
            background: var(--accent);
            color: #fff;
            font-size: 0.7rem;
            padding: 0.25rem 2.5rem;
            transform: rotate(45deg);
            font-weight: 600;
            letter-spacing: 0.04em;
        }
        .package-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .package-card .pkg-icon {
            font-size: 2.8rem;
            color: var(--primary);
            margin-bottom: 0.8rem;
        }
        .package-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .package-card .pkg-price {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin: 0.8rem 0;
        }
        .package-card .pkg-features {
            list-style: none;
            text-align: left;
            margin: 1rem 0 1.5rem;
            padding: 0;
        }
        .package-card .pkg-features li {
            padding: 0.4rem 0;
            font-size: 0.9rem;
            color: var(--text-mid);
            border-bottom: 1px solid var(--border-light);
        }
        .package-card .pkg-features li::before {
            content: '✓ ';
            color: var(--primary);
            font-weight: 700;
        }
        @media (max-width: 768px) {
            .package-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .package-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* Service matrix */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }
        .service-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 1.6rem 1.3rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .service-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .service-card .svc-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 0.7rem;
        }
        .service-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
        }
        .service-card p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin: 0;
        }
        @media (max-width: 768px) {
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.8rem;
            }
            .service-card {
                padding: 1.2rem 1rem;
            }
        }
        @media (max-width: 480px) {
            .service-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Comparison */
        .comparison-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
            min-width: 600px;
        }
        .comparison-table thead th {
            background: #F1F5F9;
            padding: 1rem;
            text-align: center;
            font-weight: 700;
            color: var(--text-dark);
            border-bottom: 2px solid var(--border);
        }
        .comparison-table thead th.col-before {
            background: #fef2f2;
            color: #b91c1c;
        }
        .comparison-table thead th.col-after {
            background: #ecfdf5;
            color: #065f46;
        }
        .comparison-table tbody td {
            padding: 0.85rem 1rem;
            text-align: center;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-mid);
        }
        .comparison-table tbody tr:nth-child(even) td {
            background: #fafbfc;
        }
        .comparison-table .improvement {
            color: var(--primary);
            font-weight: 700;
        }
        @media (max-width: 768px) {
            .comparison-table {
                font-size: 0.8rem;
            }
            .comparison-table thead th,
            .comparison-table tbody td {
                padding: 0.6rem 0.7rem;
            }
        }

        /* News list */
        .news-list {
            list-style: none;
            padding: 0;
        }
        .news-list li {
            display: flex;
            gap: 1.5rem;
            padding: 1.2rem 0;
            border-bottom: 1px solid var(--border-light);
            align-items: flex-start;
            transition: background var(--transition-fast);
        }
        .news-list li:hover {
            background: #fafcfb;
        }
        .news-list .news-date {
            flex-shrink: 0;
            width: 90px;
            font-size: 0.85rem;
            color: var(--text-light);
            font-weight: 500;
            text-align: center;
            padding-top: 2px;
        }
        .news-list .news-content {
            flex: 1;
        }
        .news-list .news-content h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 0.3rem;
            color: var(--text-dark);
        }
        .news-list .news-content p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-list .read-more {
            flex-shrink: 0;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            padding: 0.3rem 0.8rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .news-list .read-more:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
        }
        @media (max-width: 768px) {
            .news-list li {
                flex-direction: column;
                gap: 0.5rem;
                padding: 1rem 0;
            }
            .news-list .news-date {
                width: auto;
                text-align: left;
            }
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 0.75rem;
            overflow: hidden;
            background: #fff;
            transition: all var(--transition-fast);
        }
        .faq-item.active {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 168, 107, 0.06);
        }
        .faq-question {
            padding: 1.1rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            color: var(--text-dark);
            gap: 1rem;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: #f9fbfa;
        }
        .faq-question .faq-icon {
            transition: transform var(--transition-normal);
            font-size: 0.85rem;
            color: var(--text-light);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            background: var(--bg-lighter);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 1.5rem 1.2rem;
        }
        .faq-answer p {
            margin: 0;
            font-size: 0.92rem;
            color: var(--text-mid);
            line-height: 1.7;
        }

        /* CTA form */
        .cta-form-section {
            background: linear-gradient(135deg, #f0faf5 0%, #e8f5ee 40%, #f5faf7 100%);
            border-radius: var(--radius-xl);
            padding: 3rem 2.5rem;
            border: 1px solid #d4ede2;
        }
        .cta-form-inner {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 2.5rem;
            align-items: center;
        }
        .cta-form-info h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            color: var(--text-dark);
        }
        .cta-form-info p {
            color: var(--text-light);
            font-size: 1rem;
            line-height: 1.7;
        }
        .cta-form-fields {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .cta-form-fields input,
        .cta-form-fields textarea {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: #fff;
            font-size: 0.95rem;
            resize: vertical;
        }
        .cta-form-fields textarea {
            min-height: 100px;
        }
        .cta-form-fields .btn-submit {
            padding: 0.9rem;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            border: none;
            transition: all var(--transition-fast);
        }
        .cta-form-fields .btn-submit:hover {
            background: var(--primary-dark);
            box-shadow: var(--shadow-md);
        }
        .cta-form-privacy {
            font-size: 0.75rem;
            color: var(--text-lighter);
            text-align: center;
            margin-top: 0.3rem;
        }
        @media (max-width: 768px) {
            .cta-form-inner {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .cta-form-section {
                padding: 2rem 1.5rem;
            }
            .cta-form-info h2 {
                font-size: 1.4rem;
            }
        }

        /* Screenshot stage */
        .screenshot-stage {
            display: flex;
            gap: 1.5rem;
            overflow-x: auto;
            padding-bottom: 1rem;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .screenshot-stage .screen-card {
            flex: 0 0 320px;
            scroll-snap-align: start;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
            transition: all var(--transition-normal);
            background: #fff;
        }
        .screenshot-stage .screen-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .screenshot-stage .screen-card img {
            width: 100%;
            aspect-ratio: 16/11;
            object-fit: cover;
        }
        .screenshot-stage .screen-card .screen-label {
            padding: 0.8rem 1rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-dark);
            text-align: center;
        }
        @media (max-width: 768px) {
            .screenshot-stage .screen-card {
                flex: 0 0 260px;
            }
        }

        /* Focus topics */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .topic-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
            text-align: center;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--primary);
        }
        .topic-card .topic-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 0.8rem;
        }
        .topic-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .topic-card p {
            font-size: 0.88rem;
            color: var(--text-light);
            margin: 0;
        }
        @media (max-width: 768px) {
            .topics-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* Entry matrix */
        .entry-matrix {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1rem;
        }
        .entry-item {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            padding: 1.2rem 1.5rem;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            font-weight: 600;
            color: var(--text-dark);
            transition: all var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
        }
        .entry-item:hover {
            border-color: var(--primary);
            background: var(--primary-light);
            color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .entry-item .entry-icon {
            font-size: 1.4rem;
            color: var(--primary);
            flex-shrink: 0;
        }
        @media (max-width: 768px) {
            .entry-matrix {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.7rem;
            }
            .entry-item {
                padding: 1rem 1.2rem;
                font-size: 0.9rem;
            }
        }
        @media (max-width: 480px) {
            .entry-matrix {
                grid-template-columns: 1fr;
            }
        }

        /* Campaign zone */
        .campaign-zone {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
            border-radius: var(--radius-xl);
            padding: 3rem 2.5rem;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .campaign-zone::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(255, 107, 0, 0.2) 0%, transparent 55%),
                radial-gradient(ellipse at 70% 40%, rgba(0, 168, 107, 0.2) 0%, transparent 55%);
            z-index: 0;
        }
        .campaign-zone .campaign-inner {
            position: relative;
            z-index: 1;
        }
        .campaign-zone h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 0.6rem;
        }
        .campaign-zone p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 1.5rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .campaign-zone .campaign-badges {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 1.5rem;
        }
        .campaign-zone .campaign-badge {
            background: rgba(255, 255, 255, 0.15);
            padding: 0.5rem 1.2rem;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.9rem;
            backdrop-filter: blur(4px);
        }
        @media (max-width: 768px) {
            .campaign-zone {
                padding: 2rem 1.5rem;
            }
            .campaign-zone h2 {
                font-size: 1.5rem;
            }
        }

        /* Deep content */
        .deep-content {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2rem;
            box-shadow: var(--shadow-sm);
        }
        .deep-content h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-dark);
        }
        .deep-content p {
            font-size: 1rem;
            line-height: 1.85;
            color: var(--text-mid);
            margin-bottom: 1rem;
        }

        /* Final CTA bar */
        .final-cta-bar {
            background: var(--primary);
            color: #fff;
            text-align: center;
            padding: 2.5rem 2rem;
            border-radius: var(--radius-lg);
        }
        .final-cta-bar h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
        }
        .final-cta-bar p {
            font-size: 1rem;
            opacity: 0.9;
            margin-bottom: 1.5rem;
        }
        .final-cta-bar .btn-accent-lg {
            padding: 0.9rem 2.5rem;
            background: var(--accent);
            color: #fff;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1.05rem;
            transition: all var(--transition-fast);
            display: inline-block;
        }
        .final-cta-bar .btn-accent-lg:hover {
            background: #fff;
            color: var(--accent);
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: #1E293B;
            color: #cbd5e1;
            padding: 3rem 0 2rem;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
        }
        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            margin-bottom: 1rem;
            font-size: 1rem;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul li a {
            color: #94a3b8;
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid #334155;
            text-align: center;
            font-size: 0.8rem;
            color: #94a3b8;
            line-height: 1.8;
        }
        .footer-bottom a {
            color: #cbd5e1;
            margin: 0 0.5rem;
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Utility */
        .text-accent {
            color: var(--accent);
        }
        .text-primary {
            color: var(--primary);
        }
        .bg-light {
            background: var(--bg-light);
        }
        .bg-lighter {
            background: var(--bg-lighter);
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .divider {
            height: 1px;
            background: var(--border);
            margin: 2rem 0;
        }

@media (max-width:768px) {
                        #process-heading+div+div {
                            grid-template-columns: repeat(2, 1fr) !important;
                        }
                    }
                    @media (max-width:480px) {
                        #process-heading+div+div {
                            grid-template-columns: 1fr !important;
                        }
                    }

/* roulang page: category1 */
:root {
            --primary: #00A86B;
            --primary-dark: #008F5B;
            --primary-light: #E6F7F0;
            --accent: #FF6B00;
            --accent-dark: #E55E00;
            --bg-white: #FFFFFF;
            --bg-light: #F5F7FA;
            --bg-lighter: #F8FAFC;
            --text-dark: #1E293B;
            --text-mid: #334155;
            --text-light: #64748B;
            --text-lighter: #94A3B8;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.18);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.25s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
        }

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

        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-dark);
            background: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        input,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            outline: none;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        input:focus,
        textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 168, 107, 0.12);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 1rem;
            }
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            height: 64px;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 1.5rem;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            flex-wrap: wrap;
            margin: 0;
            padding: 0;
        }

        .header-nav a {
            display: block;
            padding: 0.45rem 0.85rem;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-mid);
            white-space: nowrap;
            transition: all var(--transition-fast);
        }

        .header-nav a:hover,
        .header-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }

        .header-search input {
            width: 180px;
            padding: 0.5rem 0.9rem;
            border: 1px solid var(--border);
            border-radius: 24px;
            font-size: 0.875rem;
            background: var(--bg-light);
            color: var(--text-dark);
            transition: all var(--transition-fast);
        }

        .header-search input:focus {
            border-color: var(--primary);
            background: #fff;
            width: 220px;
        }

        .header-cta-btn {
            padding: 0.55rem 1.3rem;
            background: var(--primary);
            color: #fff;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

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

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            padding: 0.4rem;
            cursor: pointer;
        }

        @media (max-width: 1024px) {
            .header-nav {
                gap: 0;
            }
            .header-nav a {
                padding: 0.4rem 0.55rem;
                font-size: 0.8rem;
            }
            .header-search input {
                width: 130px;
            }
            .header-search input:focus {
                width: 160px;
            }
        }

        @media (max-width: 768px) {
            .header-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 1rem;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
                gap: 0.25rem;
            }
            .header-nav.open {
                display: flex;
            }
            .header-nav a {
                width: 100%;
                padding: 0.65rem 1rem;
                font-size: 0.9rem;
                border-radius: var(--radius-sm);
            }
            .header-search {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .header-search.mobile-visible {
                display: flex;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                padding: 0.75rem 1rem;
                background: var(--bg-white);
                border-bottom: 1px solid var(--border);
                z-index: 998;
            }
            .header-search.mobile-visible input {
                width: 100%;
            }
        }

        /* Hero Section */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(0, 30, 20, 0.88) 0%, rgba(0, 60, 40, 0.82) 40%, rgba(0, 40, 25, 0.9) 100%), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            min-height: 420px;
            display: flex;
            align-items: center;
            padding: 3rem 0;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(0, 168, 107, 0.15) 0%, transparent 60%);
            pointer-events: none;
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }

        .page-hero .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 0.35rem 1rem;
            border-radius: 24px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 1.25rem;
            letter-spacing: 0.02em;
            color: #e0f7ec;
        }

        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
        }

        .page-hero .hero-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.6;
            margin-bottom: 2rem;
            max-width: 560px;
        }

        .page-hero .hero-stats-row {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            margin-bottom: 2rem;
        }

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

        .page-hero .hero-stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 0.3rem;
        }

        .page-hero .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 400;
        }

        .btn-primary-lg {
            display: inline-block;
            padding: 0.85rem 2rem;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 28px;
            transition: all var(--transition-normal);
            letter-spacing: 0.01em;
        }

        .btn-primary-lg:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .btn-outline-light {
            display: inline-block;
            padding: 0.85rem 2rem;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 28px;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-normal);
            letter-spacing: 0.01em;
        }

        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        @media (max-width: 768px) {
            .page-hero {
                min-height: 340px;
                padding: 2rem 0;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .page-hero .hero-subtitle {
                font-size: 1rem;
            }
            .page-hero .hero-stats-row {
                gap: 1.25rem;
            }
            .page-hero .hero-stat-num {
                font-size: 1.6rem;
            }
            .page-hero .hero-stat-label {
                font-size: 0.78rem;
            }
        }

        /* Section Common */
        .section {
            padding: 4rem 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }

        .section-header .section-divider {
            width: 50px;
            height: 4px;
            background: var(--primary);
            border-radius: 2px;
            margin: 0 auto 1rem;
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .section {
                padding: 2.5rem 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .section-header p {
                font-size: 0.95rem;
            }
        }

        /* Coverage Cards */
        .coverage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .coverage-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 1.75rem;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .coverage-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-normal);
        }

        .coverage-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--primary);
        }

        .coverage-card:hover::before {
            transform: scaleX(1);
        }

        .coverage-card .card-icon {
            width: 48px;
            height: 48px;
            background: var(--primary-light);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.3rem;
            margin-bottom: 1rem;
        }

        .coverage-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.5rem;
        }

        .coverage-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 0.75rem;
        }

        .coverage-card .card-stat {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
        }

        .coverage-card .card-stat-label {
            font-size: 0.8rem;
            color: var(--text-lighter);
        }

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

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

        /* Detail Content Block */
        .detail-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .detail-block.reverse {
            direction: rtl;
        }

        .detail-block.reverse>* {
            direction: ltr;
        }

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

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

        .detail-block .detail-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 1rem;
            line-height: 1.3;
        }

        .detail-block .detail-text p {
            font-size: 1rem;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 1rem;
        }

        .detail-block .detail-text .highlight-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
        }

        @media (max-width: 768px) {
            .detail-block {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .detail-block .detail-text h3 {
                font-size: 1.3rem;
            }
        }

        /* Scenario Cards */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }

        .scenario-card {
            background: var(--bg-lighter);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            text-align: center;
            transition: all var(--transition-normal);
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
            background: #fff;
        }

        .scenario-card .scenario-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 0.75rem;
        }

        .scenario-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.5rem;
        }

        .scenario-card p {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.5;
        }

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

        @media (max-width: 520px) {
            .scenario-grid {
                grid-template-columns: 1fr;
            }
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 0.75rem;
            overflow: hidden;
            background: var(--bg-white);
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            width: 100%;
            padding: 1.1rem 1.25rem;
            background: var(--bg-white);
            text-align: left;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: none;
        }

        .faq-question:hover {
            color: var(--primary);
            background: var(--bg-lighter);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            transition: transform var(--transition-normal);
            font-size: 0.9rem;
            color: var(--text-light);
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            background: var(--bg-lighter);
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 1.25rem 1.25rem;
            font-size: 0.95rem;
            color: var(--text-mid);
            line-height: 1.7;
        }

        /* CTA Form */
        .cta-section {
            background: linear-gradient(135deg, #003820 0%, #005230 100%);
            padding: 3.5rem 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 50%, rgba(0, 168, 107, 0.2) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .cta-text h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
            line-height: 1.25;
        }

        .cta-text p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }

        .cta-form {
            background: #fff;
            padding: 2rem;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            color: var(--text-dark);
        }

        .cta-form h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 1.25rem;
            color: var(--text-dark);
            text-align: center;
        }

        .cta-form .form-group {
            margin-bottom: 1rem;
        }

        .cta-form label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-mid);
            margin-bottom: 0.35rem;
        }

        .cta-form input,
        .cta-form textarea {
            width: 100%;
            padding: 0.7rem 0.9rem;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            background: var(--bg-light);
            color: var(--text-dark);
            transition: all var(--transition-fast);
        }

        .cta-form input:focus,
        .cta-form textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 168, 107, 0.1);
            background: #fff;
        }

        .cta-form textarea {
            resize: vertical;
            min-height: 80px;
        }

        .btn-submit {
            width: 100%;
            padding: 0.85rem;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-normal);
            letter-spacing: 0.02em;
        }

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

        .cta-form .privacy-note {
            font-size: 0.78rem;
            color: var(--text-lighter);
            text-align: center;
            margin-top: 0.75rem;
        }

        @media (max-width: 768px) {
            .cta-inner {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .cta-text h2 {
                font-size: 1.5rem;
            }
            .cta-form {
                padding: 1.5rem;
            }
        }

        /* Footer */
        .site-footer {
            background: #1E293B;
            color: #cbd5e1;
            padding: 3rem 0 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

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

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

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col ul li a {
            color: #94a3b8;
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }

        .footer-col ul li a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            text-align: center;
            padding: 1.5rem 0;
            font-size: 0.82rem;
            color: #94a3b8;
            line-height: 1.8;
        }

        .footer-bottom a {
            color: #94a3b8;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

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

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
        }

        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Data Table */
        .data-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
            min-width: 600px;
        }

        .data-table thead {
            background: var(--bg-light);
        }

        .data-table thead th {
            padding: 0.9rem 1rem;
            text-align: left;
            font-weight: 700;
            color: var(--text-dark);
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.03em;
            border-bottom: 2px solid var(--border);
        }

        .data-table tbody td {
            padding: 0.8rem 1rem;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-mid);
        }

        .data-table tbody tr:hover {
            background: var(--bg-lighter);
        }

        .data-table .highlight-num {
            font-weight: 700;
            color: var(--primary);
        }

        .badge-green {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            padding: 0.25rem 0.7rem;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
        }

/* roulang page: category2 */
:root {
            --primary: #00A86B;
            --primary-dark: #008F5B;
            --primary-light: #E6F7F0;
            --accent: #FF6B00;
            --accent-dark: #E55E00;
            --bg-white: #FFFFFF;
            --bg-light: #F5F7FA;
            --bg-lighter: #F8FAFC;
            --text-dark: #1E293B;
            --text-mid: #334155;
            --text-light: #64748B;
            --text-lighter: #94A3B8;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.18);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.25s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
        }

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

        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-dark);
            background: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

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

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

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

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

        input,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            outline: none;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        input:focus,
        textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 168, 107, 0.12);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        @media (max-width:768px) {
            .container {
                padding: 0 1rem;
            }
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            height: 64px;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 1.5rem;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            flex-wrap: wrap;
            margin: 0;
            padding: 0;
        }

        .header-nav a {
            display: block;
            padding: 0.45rem 0.85rem;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-mid);
            white-space: nowrap;
            transition: all var(--transition-fast);
        }

        .header-nav a:hover,
        .header-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }

        .header-search input {
            width: 180px;
            padding: 0.5rem 0.9rem;
            border: 1px solid var(--border);
            border-radius: 24px;
            font-size: 0.875rem;
            background: var(--bg-light);
            color: var(--text-dark);
            transition: all var(--transition-fast);
        }

        .header-search input:focus {
            border-color: var(--primary);
            background: #fff;
            width: 220px;
        }

        .header-cta-btn {
            padding: 0.55rem 1.3rem;
            background: var(--primary);
            color: #fff;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

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

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            padding: 0.4rem;
            cursor: pointer;
        }

        @media (max-width:1024px) {
            .header-nav {
                gap: 0;
            }
            .header-nav a {
                padding: 0.4rem 0.55rem;
                font-size: 0.8rem;
            }
            .header-search input {
                width: 130px;
            }
            .header-search input:focus {
                width: 160px;
            }
        }

        @media (max-width:768px) {
            .header-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 1rem;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                z-index: 999;
                gap: 0.15rem;
            }
            .header-nav.open {
                display: flex;
            }
            .header-nav a {
                width: 100%;
                padding: 0.7rem 1rem;
                font-size: 0.95rem;
                border-radius: var(--radius-sm);
            }
            .header-search {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .header-search-mobile {
                display: flex;
                width: 100%;
                padding: 0.5rem 1rem;
            }
            .header-search-mobile input {
                width: 100%;
                padding: 0.6rem 1rem;
                border: 1px solid var(--border);
                border-radius: 24px;
                font-size: 0.9rem;
                background: var(--bg-light);
            }
        }

        @media (min-width:769px) {
            .header-search-mobile {
                display: none;
            }
        }

        /* Hero Section - 拼团转化 */
        .hero-group-buy {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, rgba(0, 30, 20, 0.88) 0%, rgba(0, 60, 40, 0.82) 40%, rgba(0, 20, 10, 0.9) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            overflow: hidden;
        }

        .hero-group-buy::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(0, 168, 107, 0.25) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(255, 107, 0, 0.15) 0%, transparent 50%);
            pointer-events: none;
        }

        .hero-group-buy .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 3rem 1.5rem;
        }

        @media (max-width:768px) {
            .hero-group-buy .hero-content {
                grid-template-columns: 1fr;
                gap: 2rem;
                padding: 2.5rem 1rem;
                text-align: center;
            }
            .hero-group-buy {
                min-height: auto;
            }
        }

        .hero-group-buy .hero-left h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.2;
            margin: 0 0 1rem;
            letter-spacing: -0.02em;
        }

        .hero-group-buy .hero-left h1 .highlight {
            color: #FFD54F;
            position: relative;
        }

        .hero-group-buy .hero-left .hero-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.88);
            margin: 0 0 1.5rem;
            line-height: 1.6;
        }

        .hero-group-buy .hero-left .group-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin-bottom: 1.5rem;
            justify-content: flex-start;
        }

        @media (max-width:768px) {
            .hero-group-buy .hero-left .group-tags {
                justify-content: center;
            }
        }

        .hero-group-buy .hero-left .group-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            padding: 0.4rem 0.9rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .hero-group-buy .hero-left .group-tag i {
            color: #FFD54F;
            font-size: 0.75rem;
        }

        .hero-group-buy .hero-left .hero-buttons {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        @media (max-width:768px) {
            .hero-group-buy .hero-left .hero-buttons {
                justify-content: center;
            }
        }

        .hero-btn-primary {
            padding: 0.85rem 2rem;
            background: var(--accent);
            color: #fff;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1.05rem;
            transition: all var(--transition-normal);
            box-shadow: 0 4px 16px rgba(255, 107, 0, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .hero-btn-primary:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 107, 0, 0.45);
        }

        .hero-btn-secondary {
            padding: 0.85rem 2rem;
            background: transparent;
            color: #fff;
            border-radius: 28px;
            font-weight: 600;
            font-size: 1.05rem;
            border: 2px solid rgba(255, 255, 255, 0.55);
            transition: all var(--transition-normal);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .hero-btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .hero-group-buy .hero-right {
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 2rem;
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: #fff;
        }

        .hero-right .group-card-title {
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 0 1.2rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .hero-right .group-card-title i {
            color: #FFD54F;
        }

        .hero-right .group-progress {
            margin-bottom: 1.2rem;
        }

        .hero-right .group-progress-bar {
            height: 8px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 4px;
            overflow: hidden;
            margin-bottom: 0.5rem;
        }

        .hero-right .group-progress-fill {
            height: 100%;
            background: var(--accent);
            border-radius: 4px;
            transition: width 0.6s ease;
        }

        .hero-right .group-progress-info {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.8);
        }

        .hero-right .group-avatars {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1.2rem;
        }

        .hero-right .group-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.4);
        }

        .hero-right .group-avatar-more {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.8rem;
            color: #fff;
        }

        .hero-right .group-benefits {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .hero-right .group-benefits li {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.85);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .hero-right .group-benefits li i {
            color: #00E676;
            font-size: 0.8rem;
        }

        @media (max-width:768px) {
            .hero-group-buy .hero-left h1 {
                font-size: 2rem;
            }
            .hero-group-buy .hero-left .hero-subtitle {
                font-size: 1rem;
            }
            .hero-group-buy .hero-right {
                padding: 1.5rem;
            }
        }

        /* Section Common */
        .section {
            padding: 4rem 0;
        }

        @media (max-width:768px) {
            .section {
                padding: 2.5rem 0;
            }
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 0.75rem;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-light);
            margin: 0 0 2.5rem;
            line-height: 1.6;
        }

        .section-header {
            text-align: center;
            margin-bottom: 2.5rem;
        }

        /* Report Cards */
        .report-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

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

        @media (max-width:640px) {
            .report-cards-grid {
                grid-template-columns: 1fr;
            }
        }

        .report-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }

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

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

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

        .report-card:hover .card-img img {
            transform: scale(1.05);
        }

        .report-card .card-img .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #fff;
            padding: 0.3rem 0.8rem;
            border-radius: 16px;
            font-size: 0.78rem;
            font-weight: 600;
            z-index: 2;
        }

        .report-card .card-body {
            padding: 1.5rem;
        }

        .report-card .card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 0 0.6rem;
            color: var(--text-dark);
        }

        .report-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin: 0 0 1rem;
            line-height: 1.6;
        }

        .report-card .card-body .card-meta {
            display: flex;
            gap: 1rem;
            font-size: 0.8rem;
            color: var(--text-lighter);
            flex-wrap: wrap;
        }

        .report-card .card-body .card-meta span {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }

        .report-card .card-body .card-meta i {
            color: var(--primary);
        }

        /* Process Steps */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            position: relative;
        }

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

        @media (max-width:640px) {
            .process-steps {
                grid-template-columns: 1fr;
            }
        }

        .process-step {
            text-align: center;
            padding: 2rem 1.5rem;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            position: relative;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }

        .process-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .process-step .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.3rem;
            margin: 0 auto 1rem;
        }

        .process-step h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 0 0.5rem;
            color: var(--text-dark);
        }

        .process-step p {
            font-size: 0.88rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.6;
        }

        /* Deep Content */
        .deep-content {
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            padding: 3rem;
            margin: 0 auto;
        }

        @media (max-width:768px) {
            .deep-content {
                padding: 1.5rem;
            }
        }

        .deep-content h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 1.5rem;
        }

        .deep-content p {
            font-size: 1rem;
            color: var(--text-mid);
            line-height: 1.85;
            margin: 0 0 1.2rem;
        }

        .deep-content .highlight-box {
            background: var(--bg-white);
            border-left: 4px solid var(--primary);
            padding: 1.5rem 2rem;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 1.5rem 0;
            box-shadow: var(--shadow-sm);
        }

        .deep-content .highlight-box p {
            margin: 0;
            font-weight: 500;
            color: var(--text-dark);
        }

        /* Comparison Table */
        .compare-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }

        .compare-table thead th {
            background: var(--primary);
            color: #fff;
            padding: 1rem 1.5rem;
            font-weight: 600;
            font-size: 0.95rem;
            text-align: center;
            white-space: nowrap;
        }

        .compare-table thead th:first-child {
            background: var(--text-dark);
            text-align: left;
        }

        .compare-table tbody td {
            padding: 0.9rem 1.5rem;
            border-bottom: 1px solid var(--border-light);
            text-align: center;
            font-size: 0.9rem;
            color: var(--text-mid);
        }

        .compare-table tbody td:first-child {
            text-align: left;
            font-weight: 600;
            color: var(--text-dark);
        }

        .compare-table tbody tr:nth-child(even) {
            background: var(--bg-lighter);
        }

        .compare-table tbody tr:hover {
            background: var(--primary-light);
        }

        .compare-table .check-icon {
            color: var(--primary);
            font-size: 1.1rem;
        }

        .compare-table .dash-icon {
            color: var(--text-lighter);
        }

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

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            padding: 1.2rem 1.5rem;
            background: none;
            text-align: left;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            cursor: pointer;
            border: none;
            transition: all var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-normal);
            font-size: 0.8rem;
            color: var(--primary);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 1.5rem;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 1.5rem 1.2rem;
        }

        .faq-answer p {
            margin: 0;
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* CTA Form */
        .cta-section {
            background: linear-gradient(135deg, #003820 0%, #005030 50%, #002818 100%);
            padding: 3.5rem 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 168, 107, 0.3) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .cta-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        @media (max-width:768px) {
            .cta-section .cta-inner {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }

        .cta-section .cta-info h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 0 0 1rem;
            color: #fff;
        }

        .cta-section .cta-info p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 1.5rem;
            line-height: 1.7;
        }

        .cta-section .cta-info .cta-benefits {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .cta-section .cta-info .cta-benefits li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.9);
        }

        .cta-section .cta-info .cta-benefits li i {
            color: #00E676;
        }

        .cta-form-wrap {
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            padding: 2rem;
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        .cta-form-wrap h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 0 1.5rem;
            color: #fff;
            text-align: center;
        }

        .cta-form-wrap .form-group {
            margin-bottom: 1rem;
        }

        .cta-form-wrap input,
        .cta-form-wrap textarea {
            width: 100%;
            padding: 0.8rem 1rem;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
        }

        .cta-form-wrap input::placeholder,
        .cta-form-wrap textarea::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .cta-form-wrap input:focus,
        .cta-form-wrap textarea:focus {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.18);
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.12);
        }

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

        .cta-form-wrap .submit-btn {
            width: 100%;
            padding: 0.9rem 1.5rem;
            background: var(--accent);
            color: #fff;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-normal);
            box-shadow: 0 4px 16px rgba(255, 107, 0, 0.35);
        }

        .cta-form-wrap .submit-btn:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 107, 0, 0.5);
        }

        .cta-form-wrap .privacy-note {
            text-align: center;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 0.8rem;
        }

        /* Footer */
        .site-footer {
            background: #1E293B;
            color: #cbd5e1;
            padding: 3rem 0 1.5rem;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }

        @media (max-width:768px) {
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
        }

        @media (max-width:480px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        .site-footer .footer-col h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 1rem;
        }

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

        .site-footer .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .site-footer .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

        .site-footer .footer-col ul li a:hover {
            color: #fff;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.82rem;
            color: #94a3b8;
            line-height: 2;
        }

        .site-footer .footer-bottom a {
            color: #94a3b8;
        }

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

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-fade-in {
            animation: fadeInUp 0.6s ease forwards;
        }

/* roulang page: category3 */
:root {
            --primary: #00A86B;
            --primary-dark: #008F5B;
            --primary-light: #E6F7F0;
            --accent: #FF6B00;
            --accent-dark: #E55E00;
            --bg-white: #FFFFFF;
            --bg-light: #F5F7FA;
            --bg-lighter: #F8FAFC;
            --text-dark: #1E293B;
            --text-mid: #334155;
            --text-light: #64748B;
            --text-lighter: #94A3B8;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.18);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.25s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-dark);
            background: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
            outline: none;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 168, 107, 0.12);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 1rem;
            }
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            height: 64px;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 1.5rem;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            flex-wrap: wrap;
        }

        .header-nav a {
            display: block;
            padding: 0.45rem 0.85rem;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-mid);
            white-space: nowrap;
            transition: all var(--transition-fast);
        }

        .header-nav a:hover,
        .header-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }

        .header-search input {
            width: 180px;
            padding: 0.5rem 0.9rem;
            border: 1px solid var(--border);
            border-radius: 24px;
            font-size: 0.875rem;
            background: var(--bg-light);
            color: var(--text-dark);
            transition: all var(--transition-fast);
        }

        .header-search input:focus {
            border-color: var(--primary);
            background: #fff;
            width: 220px;
        }

        .header-cta-btn {
            padding: 0.55rem 1.3rem;
            background: var(--primary);
            color: #fff;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

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

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            padding: 0.4rem;
            cursor: pointer;
        }

        @media (max-width: 1024px) {
            .header-nav {
                gap: 0;
            }
            .header-nav a {
                padding: 0.4rem 0.55rem;
                font-size: 0.8rem;
            }
            .header-search input {
                width: 130px;
            }
            .header-search input:focus {
                width: 160px;
            }
        }

        @media (max-width: 768px) {
            .header-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 1rem;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
                gap: 0.25rem;
            }
            .header-nav.open {
                display: flex;
            }
            .header-nav a {
                padding: 0.6rem 1rem;
                font-size: 0.95rem;
                width: 100%;
            }
            .header-search {
                display: none;
            }
            .header-search.mobile-open {
                display: flex;
                position: absolute;
                top: calc(64px + 100%);
                left: 0;
                right: 0;
                padding: 0.75rem 1rem;
                background: var(--bg-white);
                border-bottom: 1px solid var(--border);
                z-index: 998;
            }
            .header-search.mobile-open input {
                width: 100%;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .header-cta-btn {
                font-size: 0.8rem;
                padding: 0.45rem 1rem;
            }
        }

        /* Hero Section */
        .category-hero {
            position: relative;
            background: linear-gradient(135deg, #0a1f14 0%, #0d3320 30%, #0a2818 60%, #061810 100%);
            color: #fff;
            padding: 3.5rem 0 4rem;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(0, 168, 107, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 107, 0, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 2.5rem;
            align-items: center;
        }

        .category-hero .hero-text {
            padding-right: 1rem;
        }

        .category-hero .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.12);
            color: #a0f0c8;
            padding: 0.3rem 0.9rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 1.2rem;
            border: 1px solid rgba(255, 255, 255, 0.18);
        }

        .category-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1rem;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .category-hero h1 span {
            color: #00e690;
        }

        .category-hero .hero-subtitle {
            font-size: 1.15rem;
            color: #cbd5e1;
            line-height: 1.6;
            margin-bottom: 1.5rem;
            max-width: 520px;
        }

        .category-hero .hero-kpis {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            margin-bottom: 1.8rem;
        }

        .category-hero .hero-kpi {
            text-align: left;
        }

        .category-hero .hero-kpi .kpi-num {
            font-size: 2rem;
            font-weight: 800;
            color: #00e690;
            line-height: 1;
        }

        .category-hero .hero-kpi .kpi-label {
            font-size: 0.82rem;
            color: #94a3b8;
            margin-top: 0.25rem;
        }

        .category-hero .hero-actions {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
        }

        .btn-primary-lg {
            padding: 0.75rem 1.8rem;
            background: var(--primary);
            color: #fff;
            border-radius: 24px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-normal);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-primary-lg:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .btn-outline-lg {
            padding: 0.75rem 1.8rem;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.4);
            border-radius: 24px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-normal);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-outline-lg:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .category-hero .hero-image-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xl);
            transform: rotate(-1.5deg);
            transition: transform var(--transition-normal);
        }

        .category-hero .hero-image-wrap:hover {
            transform: rotate(0deg);
        }

        .category-hero .hero-image-wrap img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        .category-hero .hero-image-wrap .overlay-badge {
            position: absolute;
            bottom: 1rem;
            right: 1rem;
            background: rgba(0, 0, 0, 0.75);
            color: #fff;
            padding: 0.4rem 1rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            backdrop-filter: blur(6px);
        }

        @media (max-width: 1024px) {
            .category-hero .hero-content {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            .category-hero h1 {
                font-size: 2.2rem;
            }
            .category-hero .hero-image-wrap {
                transform: rotate(-1deg);
            }
        }

        @media (max-width: 768px) {
            .category-hero {
                padding: 2.5rem 0 3rem;
            }
            .category-hero .hero-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .category-hero .hero-text {
                padding-right: 0;
                text-align: center;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .category-hero .hero-subtitle {
                margin: 0 auto 1.5rem;
                font-size: 1rem;
            }
            .category-hero .hero-kpis {
                justify-content: center;
                gap: 1.5rem;
            }
            .category-hero .hero-actions {
                justify-content: center;
            }
            .category-hero .hero-image-wrap {
                transform: rotate(0deg);
                max-width: 400px;
                margin: 0 auto;
            }
            .category-hero .hero-kpi .kpi-num {
                font-size: 1.6rem;
            }
        }

        /* Section Common */
        .section {
            padding: 3.5rem 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 2.5rem;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.6rem;
        }
        .section-header .section-subtitle {
            font-size: 1rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
        }

        /* Model Cards */
        .model-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .model-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .model-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
            opacity: 0;
            transition: opacity var(--transition-normal);
        }

        .model-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
            transform: translateY(-3px);
        }
        .model-card:hover::before {
            opacity: 1;
        }

        .model-card .card-icon {
            width: 50px;
            height: 50px;
            background: var(--primary-light);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }

        .model-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.5rem;
        }

        .model-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 0.8rem;
        }

        .model-card .card-tag {
            display: inline-block;
            background: var(--bg-light);
            color: var(--primary);
            padding: 0.2rem 0.7rem;
            border-radius: 14px;
            font-size: 0.78rem;
            font-weight: 500;
        }

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

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

        /* Case Study Section */
        .case-study-block {
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            margin-bottom: 1.5rem;
            border-left: 5px solid var(--primary);
            transition: all var(--transition-normal);
        }

        .case-study-block:hover {
            box-shadow: var(--shadow-md);
            background: #fff;
        }

        .case-study-block .case-header {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1rem;
            flex-wrap: wrap;
        }

        .case-study-block .case-num {
            width: 42px;
            height: 42px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .case-study-block h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-dark);
        }

        .case-study-block .case-meta {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-left: auto;
        }

        .case-study-block .case-body {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            align-items: start;
        }

        .case-study-block .case-desc {
            font-size: 0.95rem;
            color: var(--text-mid);
            line-height: 1.7;
        }

        .case-study-block .case-result {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 1.2rem;
            border: 1px solid var(--border);
        }

        .case-study-block .case-result .result-highlight {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
        }

        .case-study-block .case-result .result-label {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 0.25rem;
        }

        @media (max-width: 768px) {
            .case-study-block .case-body {
                grid-template-columns: 1fr;
            }
            .case-study-block {
                padding: 1.5rem;
            }
        }

        /* Process Flow */
        .process-flow {
            display: flex;
            gap: 0;
            align-items: flex-start;
            flex-wrap: nowrap;
            overflow-x: auto;
            padding: 1rem 0;
        }

        .process-step {
            flex: 1;
            min-width: 180px;
            text-align: center;
            position: relative;
            padding: 1.5rem 1rem;
        }

        .process-step::after {
            content: '';
            position: absolute;
            top: 40px;
            right: -20px;
            width: 40px;
            height: 2px;
            background: var(--border);
            z-index: 0;
        }

        .process-step:last-child::after {
            display: none;
        }

        .process-step .step-circle {
            width: 56px;
            height: 56px;
            background: var(--primary-light);
            border: 3px solid var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--primary);
            margin: 0 auto 0.8rem;
            position: relative;
            z-index: 1;
            font-weight: 700;
            transition: all var(--transition-normal);
        }

        .process-step:hover .step-circle {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: scale(1.08);
        }

        .process-step h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.3rem;
        }

        .process-step p {
            font-size: 0.8rem;
            color: var(--text-light);
            line-height: 1.5;
        }

        @media (max-width: 768px) {
            .process-flow {
                flex-wrap: wrap;
                gap: 1rem;
            }
            .process-step {
                flex: 0 0 45%;
                min-width: auto;
            }
            .process-step::after {
                display: none;
            }
        }

        @media (max-width: 480px) {
            .process-step {
                flex: 0 0 100%;
            }
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: all var(--transition-fast);
            background: var(--bg-white);
        }

        .faq-item:hover {
            border-color: #cbd5e1;
        }

        .faq-question {
            width: 100%;
            background: none;
            padding: 1.1rem 1.5rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            text-align: left;
            cursor: pointer;
            transition: color var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            color: var(--text-light);
            transition: all var(--transition-fast);
        }

        .faq-item.active .faq-question .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 1.5rem;
            background: var(--bg-lighter);
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 1rem 1.5rem;
        }

        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-mid);
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #0a1f14 0%, #0d3320 40%, #0a2818 100%);
            color: #fff;
            padding: 3.5rem 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(0, 168, 107, 0.3) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .cta-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            color: #fff;
        }

        .cta-section .cta-desc {
            font-size: 1rem;
            color: #cbd5e1;
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }

        .cta-form {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 2rem;
            color: var(--text-dark);
            box-shadow: var(--shadow-xl);
        }

        .cta-form .form-group {
            margin-bottom: 1rem;
        }

        .cta-form label {
            display: block;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 0.35rem;
            color: var(--text-mid);
        }

        .cta-form input,
        .cta-form textarea,
        .cta-form select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            background: var(--bg-light);
            color: var(--text-dark);
        }

        .cta-form input:focus,
        .cta-form textarea:focus,
        .cta-form select:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(0, 168, 107, 0.12);
        }

        .cta-form .btn-submit {
            width: 100%;
            padding: 0.8rem;
            background: var(--primary);
            color: #fff;
            border-radius: 24px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-normal);
            cursor: pointer;
        }

        .cta-form .btn-submit:hover {
            background: var(--primary-dark);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .cta-form .privacy-note {
            font-size: 0.75rem;
            color: var(--text-lighter);
            text-align: center;
            margin-top: 0.8rem;
        }

        @media (max-width: 768px) {
            .cta-section .cta-inner {
                grid-template-columns: 1fr;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        /* Footer */
        .site-footer {
            background: #1E293B;
            color: #e2e8f0;
            padding: 3rem 0 1.5rem;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }

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

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

        .site-footer .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .site-footer .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

        .site-footer .footer-col ul li a:hover {
            color: #fff;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.82rem;
            color: #94a3b8;
            line-height: 2;
        }

        .site-footer .footer-bottom a {
            color: #94a3b8;
            transition: color var(--transition-fast);
        }

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

        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
        }

        @media (max-width: 480px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Utility */
        .text-accent {
            color: var(--accent);
        }
        .text-primary {
            color: var(--primary);
        }
        .bg-light {
            background: var(--bg-light);
        }
        .bg-lighter {
            background: var(--bg-lighter);
        }
        .section-alt {
            background: var(--bg-light);
        }

        /* Data highlight bar */
        .data-highlight-bar {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            justify-content: center;
            padding: 2rem 0;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
        }

        .data-highlight-bar .data-item {
            text-align: center;
            padding: 0 1.5rem;
            border-right: 1px solid var(--border-light);
        }
        .data-highlight-bar .data-item:last-child {
            border-right: none;
        }
        .data-highlight-bar .data-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }
        .data-highlight-bar .data-label {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 0.3rem;
        }

        @media (max-width: 768px) {
            .data-highlight-bar {
                gap: 1rem;
                padding: 1.5rem 0;
            }
            .data-highlight-bar .data-item {
                flex: 0 0 45%;
                border-right: none;
                border-bottom: 1px solid var(--border-light);
                padding: 0.75rem 0.5rem;
            }
            .data-highlight-bar .data-num {
                font-size: 1.6rem;
            }
        }

        /* Tech comparison table */
        .tech-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
        }

        .tech-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
        }

        .tech-table thead th {
            background: var(--primary);
            color: #fff;
            padding: 0.9rem 1.2rem;
            text-align: left;
            font-weight: 600;
            white-space: nowrap;
        }

        .tech-table tbody td {
            padding: 0.8rem 1.2rem;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-mid);
        }

        .tech-table tbody tr:nth-child(even) {
            background: var(--bg-lighter);
        }
        .tech-table tbody tr:hover {
            background: #f0fdf6;
        }
        .tech-table .highlight-cell {
            color: var(--primary);
            font-weight: 700;
        }

/* roulang page: category5 */
:root {
            --primary: #00A86B;
            --primary-dark: #008F5B;
            --primary-light: #E6F7F0;
            --primary-glow: rgba(0, 168, 107, 0.18);
            --accent: #FF6B00;
            --accent-dark: #E55E00;
            --accent-light: #FFF3E8;
            --bg-white: #FFFFFF;
            --bg-light: #F5F7FA;
            --bg-lighter: #F8FAFC;
            --bg-dark: #1E293B;
            --text-dark: #1E293B;
            --text-mid: #334155;
            --text-light: #64748B;
            --text-lighter: #94A3B8;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.18);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
        }

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

        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-dark);
            background: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

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

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
            outline: none;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 168, 107, 0.12);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            height: 64px;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 1.5rem;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            flex-wrap: wrap;
            margin: 0;
            padding: 0;
        }

        .header-nav a {
            display: block;
            padding: 0.45rem 0.8rem;
            border-radius: var(--radius-sm);
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-mid);
            white-space: nowrap;
            transition: all var(--transition-fast);
        }

        .header-nav a:hover,
        .header-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }

        .header-search input {
            width: 180px;
            padding: 0.5rem 0.9rem;
            border: 1px solid var(--border);
            border-radius: 24px;
            font-size: 0.875rem;
            background: var(--bg-light);
            color: var(--text-dark);
            transition: all var(--transition-fast);
        }

        .header-search input:focus {
            border-color: var(--primary);
            background: #fff;
            width: 220px;
        }

        .header-cta-btn {
            padding: 0.55rem 1.3rem;
            background: var(--primary);
            color: #fff;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

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

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            padding: 0.4rem;
            cursor: pointer;
            flex-shrink: 0;
        }

        /* Hero */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(0, 40, 25, 0.88) 0%, rgba(0, 60, 35, 0.82) 40%, rgba(0, 30, 18, 0.9) 100%), url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
            min-height: 420px;
            display: flex;
            align-items: center;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(0, 168, 107, 0.25) 0%, transparent 60%);
            pointer-events: none;
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }

        .page-hero .hero-badge {
            display: inline-block;
            padding: 0.35rem 0.9rem;
            background: rgba(255, 107, 0, 0.85);
            border-radius: var(--radius-full);
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: #fff;
            margin-bottom: 1rem;
        }

        .page-hero h1 {
            font-size: 2.7rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 0.9rem;
            letter-spacing: -0.01em;
        }

        .page-hero .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.88);
            line-height: 1.6;
            margin-bottom: 1.5rem;
        }

        .page-hero .hero-stats-row {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
        }

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

        .page-hero .hero-stat .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
        }

        .page-hero .hero-stat .stat-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.25rem;
        }

        /* Section */
        .section {
            padding: 4rem 0;
        }

        .section-sm {
            padding: 2.5rem 0;
        }

        .section-label {
            display: inline-block;
            padding: 0.3rem 0.8rem;
            background: var(--primary-light);
            color: var(--primary-dark);
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 0.75rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.6rem;
            line-height: 1.25;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 2rem;
        }

        /* Cards */
        .solution-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .solution-card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 1rem;
            flex-shrink: 0;
        }

        .solution-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.5rem;
        }

        .solution-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            margin-bottom: 0.7rem;
        }

        .solution-card .card-tag {
            font-size: 0.72rem;
            padding: 0.2rem 0.6rem;
            border-radius: var(--radius-full);
            background: var(--accent-light);
            color: var(--accent-dark);
            font-weight: 500;
        }

        .solution-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            flex-grow: 1;
        }

        .solution-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            margin-top: 1rem;
            transition: all var(--transition-fast);
        }

        .solution-card .card-link:hover {
            color: var(--primary-dark);
            gap: 0.55rem;
        }

        /* Process */
        .process-step {
            display: flex;
            gap: 1.2rem;
            align-items: flex-start;
            padding: 1.2rem 0;
            border-bottom: 1px solid var(--border-light);
        }

        .process-step:last-child {
            border-bottom: none;
        }

        .process-step .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .process-step .step-body h4 {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-dark);
            margin-bottom: 0.25rem;
        }

        .process-step .step-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* Deep Content */
        .deep-content {
            background: var(--bg-lighter);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            border: 1px solid var(--border);
        }

        .deep-content h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 1rem;
            margin-top: 1.8rem;
        }

        .deep-content h3:first-child {
            margin-top: 0;
        }

        .deep-content p {
            font-size: 0.98rem;
            color: var(--text-mid);
            line-height: 1.8;
            margin-bottom: 1rem;
        }

        .deep-content ul {
            list-style: none;
            padding-left: 0;
            margin-bottom: 1rem;
        }

        .deep-content ul li {
            position: relative;
            padding-left: 1.5rem;
            font-size: 0.95rem;
            color: var(--text-mid);
            line-height: 1.8;
            margin-bottom: 0.4rem;
        }

        .deep-content ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.6rem;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 0.6rem;
            overflow: hidden;
            background: var(--bg-white);
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 1rem 1.2rem;
            background: none;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.8rem;
            transition: all var(--transition-fast);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            transition: all var(--transition-normal);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            background: var(--bg-lighter);
        }

        .faq-answer-inner {
            padding: 0 1.2rem 1rem;
            font-size: 0.92rem;
            color: var(--text-mid);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

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

        /* CTA Form */
        .cta-form-wrap {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
        }

        .cta-form-wrap .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            margin-bottom: 1rem;
        }

        .cta-form-wrap input,
        .cta-form-wrap textarea,
        .cta-form-wrap select {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            background: var(--bg-light);
            color: var(--text-dark);
        }

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

        .cta-form-wrap .submit-btn {
            width: 100%;
            padding: 0.9rem;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1.05rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-normal);
        }

        .cta-form-wrap .submit-btn:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            background: linear-gradient(135deg, var(--primary-dark) 0%, #007a45 100%);
        }

        .cta-form-wrap .privacy-note {
            font-size: 0.78rem;
            color: var(--text-lighter);
            text-align: center;
            margin-top: 0.8rem;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: #cbd5e1;
            padding: 3rem 0 1.5rem;
        }

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

        .site-footer h4 {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 0.8rem;
        }

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

        .site-footer ul li {
            margin-bottom: 0.4rem;
        }

        .site-footer ul li a {
            color: #94a3b8;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }

        .site-footer ul li a:hover {
            color: var(--primary);
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.8rem;
            color: #94a3b8;
            line-height: 1.8;
        }

        .site-footer .footer-bottom a {
            color: #94a3b8;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

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

        /* Mobile nav overlay */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
        }

        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 64px;
            right: 0;
            width: 280px;
            max-width: 85vw;
            bottom: 0;
            background: var(--bg-white);
            z-index: 1001;
            padding: 1.5rem;
            overflow-y: auto;
            box-shadow: var(--shadow-xl);
            flex-direction: column;
            gap: 0.5rem;
        }

        .mobile-nav-panel a {
            display: block;
            padding: 0.7rem 1rem;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-mid);
            transition: all var(--transition-fast);
        }

        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            color: var(--primary);
            background: var(--primary-light);
        }

        .mobile-nav-panel .mobile-search {
            width: 100%;
            padding: 0.6rem 0.9rem;
            border: 1px solid var(--border);
            border-radius: 24px;
            font-size: 0.9rem;
            background: var(--bg-light);
            margin-bottom: 0.5rem;
        }

        .mobile-nav-panel .mobile-cta {
            display: block;
            text-align: center;
            padding: 0.7rem;
            background: var(--primary);
            color: #fff;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.95rem;
            margin-top: 0.5rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .header-nav {
                gap: 0;
            }
            .header-nav a {
                padding: 0.4rem 0.5rem;
                font-size: 0.78rem;
            }
            .header-search input {
                width: 120px;
            }
            .header-search input:focus {
                width: 150px;
            }
            .page-hero h1 {
                font-size: 2.2rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            .deep-content {
                padding: 1.8rem;
            }
            .cta-form-wrap .form-row {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-nav {
                display: none;
            }
            .header-search {
                display: none;
            }
            .header-cta-btn {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .page-hero {
                min-height: 340px;
                text-align: left;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero .hero-stats-row {
                gap: 1.2rem;
            }
            .page-hero .hero-stat .stat-num {
                font-size: 1.5rem;
            }
            .section {
                padding: 2.5rem 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .deep-content {
                padding: 1.2rem;
            }
            .cta-form-wrap {
                padding: 1.5rem;
            }
            .solution-card {
                padding: 1.2rem;
            }
            .container {
                padding: 0 1rem;
            }
        }

        @media (max-width: 520px) {
            .page-hero {
                min-height: 300px;
            }
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .page-hero .hero-subtitle {
                font-size: 0.95rem;
            }
            .page-hero .hero-stats-row {
                gap: 0.8rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .deep-content h3 {
                font-size: 1.15rem;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #00A86B;
            --primary-dark: #008F5B;
            --primary-light: #E6F7F0;
            --accent: #FF6B00;
            --accent-dark: #E55E00;
            --bg-white: #FFFFFF;
            --bg-light: #F5F7FA;
            --bg-lighter: #F8FAFC;
            --text-dark: #1E293B;
            --text-mid: #334155;
            --text-light: #64748B;
            --text-lighter: #94A3B8;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.18);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.25s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
        }

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

        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-dark);
            background: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        input,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            outline: none;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        input:focus,
        textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 168, 107, 0.12);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            height: 64px;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 1.5rem;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .header-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            flex-wrap: wrap;
            margin: 0;
            padding: 0;
        }
        .header-nav a {
            display: block;
            padding: 0.45rem 0.85rem;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-mid);
            white-space: nowrap;
            transition: all var(--transition-fast);
        }
        .header-nav a:hover,
        .header-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
        }
        .header-search {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }
        .header-search input {
            width: 180px;
            padding: 0.5rem 0.9rem;
            border: 1px solid var(--border);
            border-radius: 24px;
            font-size: 0.875rem;
            background: var(--bg-light);
            color: var(--text-dark);
            transition: all var(--transition-fast);
        }
        .header-search input:focus {
            border-color: var(--primary);
            background: #fff;
            width: 220px;
        }
        .header-cta-btn {
            padding: 0.55rem 1.3rem;
            background: var(--primary);
            color: #fff;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .header-cta-btn:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            padding: 0.4rem;
            cursor: pointer;
        }

        /* Hero */
        .page-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, rgba(0, 30, 15, 0.88) 0%, rgba(0, 60, 30, 0.82) 50%, rgba(0, 20, 10, 0.9) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            color: #fff;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 340px;
            height: 340px;
            border-radius: 50%;
            background: rgba(0, 168, 107, 0.18);
            pointer-events: none;
        }
        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }
        .page-hero .hero-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 0.35rem 1rem;
            border-radius: 24px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 1rem;
            letter-spacing: 0.5px;
        }
        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1rem;
            letter-spacing: -0.3px;
        }
        .page-hero .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }
        .page-hero .hero-meta {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }
        .page-hero .hero-meta span {
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        /* Section */
        .section {
            padding: 4rem 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.75rem;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-light);
            margin-bottom: 2.5rem;
            max-width: 650px;
        }

        /* Cards */
        .card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 1.75rem;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            height: 100%;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--primary-light);
        }
        .card-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-sm);
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 1rem;
            flex-shrink: 0;
        }
        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.5rem;
        }
        .card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            margin: 0;
        }

        /* Tech Architecture */
        .tech-flow {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
            justify-content: center;
            padding: 1.5rem 0;
        }
        .tech-node {
            background: var(--bg-white);
            border: 2px solid var(--primary-light);
            border-radius: var(--radius-md);
            padding: 1.25rem 1.5rem;
            text-align: center;
            min-width: 130px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .tech-node:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .tech-node .node-icon {
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 0.5rem;
        }
        .tech-node .node-label {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-dark);
        }
        .tech-arrow {
            font-size: 1.5rem;
            color: var(--primary);
            flex-shrink: 0;
        }

        /* Data Table */
        .data-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
        }
        .data-table thead {
            background: var(--bg-light);
        }
        .data-table th {
            padding: 1rem 1.25rem;
            text-align: left;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-mid);
            border-bottom: 2px solid var(--border);
            white-space: nowrap;
        }
        .data-table td {
            padding: 0.9rem 1.25rem;
            font-size: 0.9rem;
            color: var(--text-dark);
            border-bottom: 1px solid var(--border-light);
        }
        .data-table tbody tr:hover {
            background: var(--bg-lighter);
        }
        .data-table .highlight-val {
            color: var(--primary);
            font-weight: 700;
            font-size: 1.05rem;
        }

        /* CTA */
        .cta-block {
            background: linear-gradient(135deg, #003820 0%, #005230 50%, #001a10 100%);
            border-radius: var(--radius-xl);
            padding: 3rem 2.5rem;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-block::after {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(0, 168, 107, 0.2);
            pointer-events: none;
        }
        .cta-block h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            position: relative;
            z-index: 1;
        }
        .cta-block p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 1.5rem;
            position: relative;
            z-index: 1;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-btn-lg {
            display: inline-block;
            padding: 0.85rem 2.2rem;
            background: var(--accent);
            color: #fff;
            border-radius: 24px;
            font-weight: 700;
            font-size: 1.05rem;
            transition: all var(--transition-normal);
            position: relative;
            z-index: 1;
        }
        .cta-btn-lg:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 0.75rem;
            overflow: hidden;
            background: var(--bg-white);
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 1.1rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            user-select: none;
            background: var(--bg-white);
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: var(--bg-lighter);
        }
        .faq-question .faq-icon {
            color: var(--primary);
            font-size: 1.1rem;
            flex-shrink: 0;
            transition: transform var(--transition-fast);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            background: var(--bg-lighter);
            padding: 0 1.5rem;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 1rem 1.5rem;
        }
        .faq-answer p {
            margin: 0;
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* Footer */
        .site-footer {
            background: #1E293B;
            color: #cbd5e1;
            padding: 3rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 1rem;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.82rem;
            color: #94a3b8;
            line-height: 2;
        }
        .footer-bottom a {
            color: #cbd5e1;
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .header-nav a {
                padding: 0.35rem 0.5rem;
                font-size: 0.78rem;
            }
            .header-search input {
                width: 130px;
            }
            .header-search input:focus {
                width: 150px;
            }
            .page-hero h1 {
                font-size: 2.2rem;
            }
            .page-hero {
                min-height: 340px;
            }
            .section {
                padding: 3rem 0;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
            .tech-flow {
                gap: 0.6rem;
            }
            .tech-node {
                min-width: 100px;
                padding: 1rem;
            }
            .tech-arrow {
                font-size: 1.2rem;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: 56px;
            }
            .header-nav {
                display: none;
                position: absolute;
                top: 56px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 1rem;
                border-bottom: 2px solid var(--border);
                box-shadow: var(--shadow-lg);
                gap: 0.3rem;
                z-index: 999;
            }
            .header-nav.open {
                display: flex;
            }
            .header-nav a {
                padding: 0.6rem 1rem;
                font-size: 0.9rem;
                border-radius: var(--radius-sm);
            }
            .header-search {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .header-cta-btn {
                font-size: 0.8rem;
                padding: 0.45rem 1rem;
            }
            .page-hero {
                min-height: 300px;
                text-align: center;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero .hero-subtitle {
                font-size: 1rem;
            }
            .page-hero .hero-meta {
                justify-content: center;
                gap: 1rem;
            }
            .section {
                padding: 2.2rem 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.2rem;
            }
            .cta-block {
                padding: 2rem 1.5rem;
                border-radius: var(--radius-lg);
            }
            .cta-block h2 {
                font-size: 1.5rem;
            }
            .tech-flow {
                flex-direction: column;
                gap: 0.5rem;
            }
            .tech-arrow {
                transform: rotate(90deg);
                font-size: 1rem;
            }
            .tech-node {
                min-width: auto;
                width: 100%;
                max-width: 280px;
            }
            .data-table-wrap {
                font-size: 0.8rem;
            }
            .data-table th,
            .data-table td {
                padding: 0.6rem 0.8rem;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .page-hero {
                min-height: 260px;
                padding: 2rem 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .card {
                padding: 1.25rem;
            }
            .cta-block {
                padding: 1.5rem 1rem;
            }
            .cta-btn-lg {
                padding: 0.7rem 1.5rem;
                font-size: 0.95rem;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #00A86B;
            --primary-dark: #008F5B;
            --primary-light: #E6F7F0;
            --accent: #FF6B00;
            --accent-dark: #E55E00;
            --bg-white: #FFFFFF;
            --bg-light: #F5F7FA;
            --bg-lighter: #F8FAFC;
            --text-dark: #1E293B;
            --text-mid: #334155;
            --text-light: #64748B;
            --text-lighter: #94A3B8;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.18);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.25s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
        }

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

        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-dark);
            background: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

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

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

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

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

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
            outline: none;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 168, 107, 0.12);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            height: 64px;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 1.5rem;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            flex-wrap: wrap;
            margin: 0;
            padding: 0;
        }

        .header-nav a {
            display: block;
            padding: 0.45rem 0.85rem;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-mid);
            white-space: nowrap;
            transition: all var(--transition-fast);
        }

        .header-nav a:hover,
        .header-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }

        .header-search input {
            width: 180px;
            padding: 0.5rem 0.9rem;
            border: 1px solid var(--border);
            border-radius: 24px;
            font-size: 0.875rem;
            background: var(--bg-light);
            color: var(--text-dark);
            transition: all var(--transition-fast);
        }

        .header-search input:focus {
            border-color: var(--primary);
            background: #fff;
            width: 220px;
        }

        .header-cta-btn {
            padding: 0.55rem 1.3rem;
            background: var(--primary);
            color: #fff;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

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

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            padding: 0.4rem;
            cursor: pointer;
        }

        /* Hero Section */
        .hero-section {
            background: linear-gradient(135deg, #0a1f14 0%, #0d3320 30%, #0a2818 60%, #0f1e14 100%);
            position: relative;
            overflow: hidden;
            padding: 5rem 0 4rem;
            color: #fff;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.22;
            z-index: 0;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 60%;
            background: linear-gradient(to top, rgba(10, 31, 20, 0.95) 0%, transparent 100%);
            z-index: 1;
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 3rem;
            flex-wrap: wrap;
        }

        .hero-text {
            flex: 1 1 480px;
            min-width: 300px;
        }

        .hero-question {
            display: inline-block;
            background: rgba(255, 107, 0, 0.2);
            border: 1px solid rgba(255, 107, 0, 0.4);
            color: #FFB380;
            padding: 0.5rem 1.2rem;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
            letter-spacing: 0.02em;
        }

        .hero-text h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            margin: 0 0 1rem;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .hero-text h1 span {
            color: #00E88F;
        }

        .hero-text .hero-subtitle {
            font-size: 1.2rem;
            color: #cbd5e1;
            line-height: 1.6;
            margin-bottom: 1.5rem;
            max-width: 520px;
        }

        .hero-stats-row {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            margin-top: 1.5rem;
        }

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

        .hero-stat-item .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: #00E88F;
            line-height: 1;
        }

        .hero-stat-item .stat-label {
            font-size: 0.85rem;
            color: #94a3b8;
            margin-top: 0.3rem;
        }

        .hero-form-card {
            flex: 0 0 400px;
            max-width: 440px;
            min-width: 320px;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 2rem;
            box-shadow: var(--shadow-xl);
            color: var(--text-dark);
        }

        .hero-form-card h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin: 0 0 0.5rem;
            color: var(--text-dark);
        }

        .hero-form-card .form-subtitle {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 1.5rem;
        }

        .hero-form-card input,
        .hero-form-card textarea {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            margin-bottom: 0.9rem;
            background: var(--bg-light);
            color: var(--text-dark);
            resize: vertical;
        }

        .hero-form-card textarea {
            min-height: 80px;
        }

        .hero-form-card .submit-btn {
            width: 100%;
            padding: 0.8rem 1.5rem;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-normal);
            cursor: pointer;
        }

        .hero-form-card .submit-btn:hover {
            background: var(--primary-dark);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .hero-form-card .form-note {
            font-size: 0.78rem;
            color: var(--text-lighter);
            margin-top: 0.7rem;
            text-align: center;
        }

        /* Section common */
        .section {
            padding: 5rem 0;
        }

        .section-header {
            text-align: left;
            margin-bottom: 3rem;
        }

        .section-header .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 0.5rem;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 0 0 0.75rem;
            color: var(--text-dark);
            line-height: 1.3;
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 680px;
            line-height: 1.7;
        }

        /* Service Type Cards */
        .service-type-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.5rem;
        }

        .service-type-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .service-type-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }

        .service-type-card .card-icon {
            width: 48px;
            height: 48px;
            background: var(--primary-light);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.3rem;
            margin-bottom: 1rem;
        }

        .service-type-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin: 0 0 0.5rem;
            color: var(--text-dark);
        }

        .service-type-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            margin: 0 0 1rem;
        }

        .service-type-card .card-tag {
            display: inline-block;
            font-size: 0.78rem;
            padding: 0.3rem 0.8rem;
            background: #FFF3E8;
            color: var(--accent);
            border-radius: 20px;
            font-weight: 600;
        }

        /* Process Steps */
        .process-steps {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
            counter-reset: step;
        }

        .process-step {
            flex: 1 1 220px;
            min-width: 200px;
            position: relative;
            padding: 2rem 1.5rem;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            text-align: center;
        }

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

        .process-step .step-number {
            width: 42px;
            height: 42px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            margin: 0 auto 1rem;
        }

        .process-step h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin: 0 0 0.5rem;
            color: var(--text-dark);
        }

        .process-step p {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.6;
            margin: 0;
        }

        .process-connector {
            display: flex;
            align-items: center;
            color: var(--primary);
            font-size: 1.5rem;
            flex-shrink: 0;
        }

        /* Comparison Table */
        .comparison-wrapper {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }

        .comparison-table thead th {
            background: #1E293B;
            color: #fff;
            padding: 1rem 1.5rem;
            font-weight: 700;
            font-size: 0.95rem;
            text-align: left;
        }

        .comparison-table thead th.highlight-col {
            background: var(--primary);
            text-align: center;
        }

        .comparison-table tbody td {
            padding: 1rem 1.5rem;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.9rem;
            color: var(--text-mid);
            vertical-align: middle;
        }

        .comparison-table tbody td.highlight-col {
            background: #F0FDF7;
            text-align: center;
            font-weight: 600;
            color: var(--primary);
        }

        .comparison-table tbody tr:hover td {
            background: #FAFBFC;
        }

        .comparison-table tbody tr:hover td.highlight-col {
            background: #E0F9EF;
        }

        .comparison-table .check-icon {
            color: var(--primary);
            font-weight: 700;
        }

        .comparison-table .dash-icon {
            color: #cbd5e1;
        }

        /* Deep Content */
        .deep-content {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            box-shadow: var(--shadow-sm);
        }

        .deep-content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 0 0 1rem;
            color: var(--text-dark);
        }

        .deep-content p {
            font-size: 1rem;
            color: var(--text-mid);
            line-height: 1.8;
            margin-bottom: 1.2rem;
        }

        .deep-content .highlight-box {
            background: var(--primary-light);
            border-left: 4px solid var(--primary);
            padding: 1.2rem 1.5rem;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.5rem 0;
            font-weight: 500;
            color: var(--text-dark);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

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

        .faq-item:hover {
            border-color: #d0dbe8;
        }

        .faq-question {
            width: 100%;
            padding: 1.1rem 1.5rem;
            background: #fff;
            text-align: left;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            cursor: pointer;
            border: none;
            transition: all var(--transition-fast);
        }

        .faq-question:hover {
            background: #FAFBFC;
            color: var(--primary);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: all var(--transition-normal);
            color: var(--text-light);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            background: var(--bg-lighter);
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 1rem 1.5rem 1.5rem;
        }

        .faq-answer p {
            margin: 0;
            font-size: 0.92rem;
            color: var(--text-mid);
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #0a1f14 0%, #0d3320 50%, #0a2818 100%);
            position: relative;
            overflow: hidden;
            padding: 5rem 0;
            color: #fff;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            display: flex;
            gap: 3rem;
            flex-wrap: wrap;
            align-items: center;
        }

        .cta-text {
            flex: 1 1 400px;
        }

        .cta-text h2 {
            font-size: 2rem;
            font-weight: 800;
            margin: 0 0 1rem;
            color: #fff;
            line-height: 1.3;
        }

        .cta-text p {
            font-size: 1.05rem;
            color: #cbd5e1;
            line-height: 1.7;
            margin: 0;
        }

        .cta-form-wrap {
            flex: 0 0 440px;
            max-width: 460px;
            min-width: 320px;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 2.2rem;
            box-shadow: var(--shadow-xl);
            color: var(--text-dark);
        }

        .cta-form-wrap h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 0 0.4rem;
        }

        .cta-form-wrap .cta-form-sub {
            font-size: 0.88rem;
            color: var(--text-light);
            margin-bottom: 1.5rem;
        }

        .cta-form-wrap input,
        .cta-form-wrap textarea {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            margin-bottom: 0.9rem;
            background: var(--bg-light);
            color: var(--text-dark);
            resize: vertical;
        }

        .cta-form-wrap textarea {
            min-height: 90px;
        }

        .cta-form-wrap .cta-submit-btn {
            width: 100%;
            padding: 0.85rem 1.5rem;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-normal);
            cursor: pointer;
        }

        .cta-form-wrap .cta-submit-btn:hover {
            background: var(--primary-dark);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .cta-form-wrap .cta-privacy {
            font-size: 0.78rem;
            color: var(--text-lighter);
            margin-top: 0.7rem;
            text-align: center;
        }

        /* Footer */
        .site-footer {
            background: #1E293B;
            color: #cbd5e1;
            padding: 3rem 0 2rem;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2.5rem;
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin: 0 0 1rem;
        }

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

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 1.5rem;
            text-align: center;
            color: #94a3b8;
            font-size: 0.82rem;
            line-height: 2;
        }

        .footer-bottom a {
            color: #94a3b8;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .header-nav a {
                padding: 0.4rem 0.55rem;
                font-size: 0.8rem;
            }
            .header-search input {
                width: 130px;
            }
            .header-search input:focus {
                width: 160px;
            }
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .hero-form-card {
                flex: 0 0 350px;
                max-width: 380px;
            }
            .hero-inner {
                gap: 2rem;
            }
            .section {
                padding: 3.5rem 0;
            }
            .cta-form-wrap {
                flex: 0 0 350px;
            }
        }

        @media (max-width: 768px) {
            .site-header .header-inner {
                flex-wrap: wrap;
                gap: 0.5rem;
            }
            .header-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                width: 100%;
                background: #fff;
                flex-direction: column;
                padding: 1rem;
                border-bottom: 2px solid var(--border);
                box-shadow: var(--shadow-md);
                z-index: 999;
            }
            .header-nav.open {
                display: flex;
            }
            .header-nav a {
                padding: 0.7rem 1rem;
                width: 100%;
                border-radius: 0;
                font-size: 0.95rem;
            }
            .header-search {
                order: 1;
            }
            .header-search input {
                width: 120px;
            }
            .mobile-menu-toggle {
                display: block;
                order: 2;
            }
            .header-cta-btn {
                order: 3;
                font-size: 0.8rem;
                padding: 0.45rem 1rem;
            }
            .hero-inner {
                flex-direction: column;
            }
            .hero-form-card {
                flex: 1 1 auto;
                max-width: 100%;
                min-width: auto;
                width: 100%;
            }
            .hero-text h1 {
                font-size: 1.8rem;
            }
            .hero-stats-row {
                gap: 1rem;
            }
            .hero-stat-item .stat-number {
                font-size: 1.6rem;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .process-steps {
                flex-direction: column;
            }
            .process-connector {
                display: none;
            }
            .cta-inner {
                flex-direction: column;
            }
            .cta-form-wrap {
                flex: 1 1 auto;
                max-width: 100%;
                min-width: auto;
                width: 100%;
            }
            .deep-content {
                padding: 1.5rem;
            }
            .service-type-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 520px) {
            .hero-text h1 {
                font-size: 1.5rem;
            }
            .hero-section {
                padding: 3rem 0 2.5rem;
            }
            .hero-form-card {
                padding: 1.5rem;
            }
            .section {
                padding: 2.5rem 0;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .comparison-table thead th,
            .comparison-table tbody td {
                padding: 0.7rem 0.8rem;
                font-size: 0.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .cta-section {
                padding: 3rem 0;
            }
            .cta-text h2 {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 0.8rem;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #00A86B;
            --primary-dark: #008F5B;
            --primary-light: #E6F7F0;
            --accent: #FF6B00;
            --accent-dark: #E55E00;
            --bg-white: #FFFFFF;
            --bg-light: #F5F7FA;
            --bg-lighter: #F8FAFC;
            --text-dark: #1E293B;
            --text-mid: #334155;
            --text-light: #64748B;
            --text-lighter: #94A3B8;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.18);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.25s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-dark);
            background: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

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

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

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

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
            outline: none;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 168, 107, 0.12);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            height: 64px;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 1.5rem;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            flex-wrap: wrap;
            margin: 0;
            padding: 0;
        }

        .header-nav a {
            display: block;
            padding: 0.45rem 0.85rem;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-mid);
            white-space: nowrap;
            transition: all var(--transition-fast);
        }

        .header-nav a:hover,
        .header-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }

        .header-search input {
            width: 180px;
            padding: 0.5rem 0.9rem;
            border: 1px solid var(--border);
            border-radius: 24px;
            font-size: 0.875rem;
            background: var(--bg-light);
            color: var(--text-dark);
            transition: all var(--transition-fast);
        }

        .header-search input:focus {
            border-color: var(--primary);
            background: #fff;
            width: 220px;
        }

        .header-cta-btn {
            padding: 0.55rem 1.3rem;
            background: var(--primary);
            color: #fff;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
            display: inline-block;
        }

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

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            padding: 0.4rem;
            cursor: pointer;
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #0a1f14 0%, #0d2e1d 40%, #0b2618 100%);
            min-height: 520px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            z-index: 0;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, rgba(255, 255, 255, 0.08), transparent);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 3rem 0;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(255, 107, 0, 0.2);
            color: #FF9F5C;
            border: 1px solid rgba(255, 107, 0, 0.35);
            padding: 0.4rem 1rem;
            border-radius: 24px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 1rem;
            letter-spacing: 0.5px;
        }

        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.2;
            margin: 0 0 1rem;
            letter-spacing: -0.5px;
        }

        .hero-title .highlight {
            color: #00D68F;
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.2rem;
            color: #cbd5e1;
            line-height: 1.6;
            margin-bottom: 2rem;
            max-width: 600px;
        }

        .hero-stats-row {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            margin-bottom: 2rem;
        }

        .hero-stat-item {
            text-align: center;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            padding: 1rem 1.5rem;
            border: 1px solid rgba(255, 255, 255, 0.1);
            min-width: 100px;
        }

        .hero-stat-item .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #00D68F;
            line-height: 1;
        }

        .hero-stat-item .stat-label {
            font-size: 0.8rem;
            color: #94a3b8;
            margin-top: 0.35rem;
        }

        .hero-cta-group {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn-primary-lg {
            padding: 0.85rem 2rem;
            background: var(--primary);
            color: #fff;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-normal);
            display: inline-block;
            box-shadow: 0 4px 16px rgba(0, 168, 107, 0.35);
        }

        .btn-primary-lg:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 6px 24px rgba(0, 168, 107, 0.45);
            transform: translateY(-2px);
        }

        .btn-outline-lg {
            padding: 0.85rem 2rem;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.4);
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-normal);
            display: inline-block;
        }

        .btn-outline-lg:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        /* Section Common */
        .section {
            padding: 4rem 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 0.75rem;
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 650px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--primary);
            background: var(--primary-light);
            padding: 0.3rem 0.9rem;
            border-radius: 20px;
            letter-spacing: 0.8px;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
        }

        /* Partnership Cards Wall */
        .partnership-wall {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            align-items: start;
        }

        .partnership-card {
            background: var(--bg-white);
            border: 2px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            text-align: center;
            transition: all var(--transition-normal);
            position: relative;
            cursor: pointer;
        }

        .partnership-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
            transform: translateY(-4px);
        }

        .partnership-card.featured {
            border-color: var(--primary);
            background: linear-gradient(180deg, #F8FFFB 0%, #FFFFFF 40%);
            box-shadow: var(--shadow-lg);
            transform: scale(1.04);
            z-index: 2;
            position: relative;
        }

        .partnership-card.featured::before {
            content: '热门方案';
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: #fff;
            padding: 0.3rem 1.2rem;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .partnership-card.featured:hover {
            transform: scale(1.06);
        }

        .card-icon-circle {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.2rem;
            font-size: 1.6rem;
        }

        .card-icon-circle.green {
            background: var(--primary-light);
            color: var(--primary);
        }

        .card-icon-circle.orange {
            background: #FFF3E8;
            color: var(--accent);
        }

        .card-icon-circle.blue {
            background: #E8F4FD;
            color: #2563EB;
        }

        .partnership-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 0.6rem;
        }

        .partnership-card .card-desc {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 1.2rem;
        }

        .partnership-card .card-features {
            list-style: none;
            padding: 0;
            margin: 0 0 1.5rem;
            text-align: left;
        }

        .partnership-card .card-features li {
            padding: 0.35rem 0;
            font-size: 0.88rem;
            color: var(--text-mid);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .partnership-card .card-features li i {
            color: var(--primary);
            font-size: 0.75rem;
            flex-shrink: 0;
        }

        .btn-card-action {
            display: inline-block;
            padding: 0.7rem 1.8rem;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            background: var(--primary);
            color: #fff;
            width: 100%;
            text-align: center;
        }

        .btn-card-action:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
        }

        .btn-card-action.outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-card-action.outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
        }

        /* Process Steps */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            position: relative;
        }

        .process-step {
            text-align: center;
            position: relative;
            padding: 1.5rem;
        }

        .process-step .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            position: relative;
            z-index: 2;
        }

        .process-step h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 0.4rem;
        }

        .process-step p {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.5;
            margin: 0;
        }

        .process-step::after {
            content: '';
            position: absolute;
            top: 40px;
            left: calc(50% + 32px);
            width: calc(100% - 64px);
            height: 2px;
            background: var(--border);
            z-index: 1;
        }

        .process-step:last-child::after {
            display: none;
        }

        /* Partner Types Grid */
        .partner-types-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }

        .partner-type-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            text-align: center;
            transition: all var(--transition-normal);
            cursor: default;
        }

        .partner-type-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
            transform: translateY(-3px);
        }

        .partner-type-card .type-icon {
            font-size: 2.5rem;
            margin-bottom: 0.8rem;
            color: var(--primary);
        }

        .partner-type-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 0.4rem;
        }

        .partner-type-card p {
            font-size: 0.83rem;
            color: var(--text-light);
            line-height: 1.5;
            margin: 0;
        }

        /* Deep Content */
        .deep-content-block {
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            margin: 2rem 0;
            border-left: 4px solid var(--primary);
        }

        .deep-content-block h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 1rem;
        }

        .deep-content-block p {
            font-size: 1rem;
            color: var(--text-mid);
            line-height: 1.85;
            margin-bottom: 1rem;
        }

        .deep-content-block p:last-child {
            margin-bottom: 0;
        }

        /* CTA Form Section */
        .cta-form-section {
            background: linear-gradient(135deg, #0a1f14 0%, #0d2e1d 100%);
            border-radius: var(--radius-xl);
            padding: 3rem;
            position: relative;
            overflow: hidden;
        }

        .cta-form-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }

        .cta-form-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
        }

        .cta-form-text h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 1rem;
        }

        .cta-form-text p {
            color: #cbd5e1;
            line-height: 1.7;
            font-size: 1rem;
            margin: 0;
        }

        .cta-form-fields {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 2rem;
        }

        .cta-form-fields .form-group {
            margin-bottom: 1rem;
        }

        .cta-form-fields label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-mid);
            margin-bottom: 0.4rem;
        }

        .cta-form-fields input,
        .cta-form-fields textarea,
        .cta-form-fields select {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            background: var(--bg-light);
            color: var(--text-dark);
            transition: all var(--transition-fast);
        }

        .cta-form-fields input:focus,
        .cta-form-fields textarea:focus,
        .cta-form-fields select:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(0, 168, 107, 0.1);
        }

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

        .btn-submit-full {
            width: 100%;
            padding: 0.85rem;
            background: var(--primary);
            color: #fff;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-normal);
            cursor: pointer;
        }

        .btn-submit-full:hover {
            background: var(--primary-dark);
            box-shadow: var(--shadow-lg);
            transform: translateY(-1px);
        }

        .form-privacy-note {
            font-size: 0.75rem;
            color: var(--text-lighter);
            text-align: center;
            margin-top: 0.75rem;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            padding: 1.1rem 1.5rem;
            background: var(--bg-white);
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            transition: all var(--transition-fast);
            user-select: none;
        }

        .faq-question:hover {
            color: var(--primary);
            background: #FAFFFC;
        }

        .faq-question .faq-icon {
            font-size: 0.85rem;
            color: var(--text-lighter);
            transition: transform var(--transition-normal);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            background: var(--bg-lighter);
            padding: 0 1.5rem;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 1rem 1.5rem;
        }

        .faq-answer p {
            margin: 0;
            font-size: 0.93rem;
            color: var(--text-mid);
            line-height: 1.7;
        }

        /* Footer */
        .site-footer {
            background: #1E293B;
            color: #cbd5e1;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 700;
            margin: 0 0 1rem;
        }

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

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.8rem;
            color: #94a3b8;
        }

        .footer-bottom p {
            margin: 0.25rem 0;
        }

        .footer-bottom a {
            color: #94a3b8;
            transition: color var(--transition-fast);
        }

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

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

            .partnership-card.featured {
                grid-column: span 2;
                transform: scale(1.02);
            }

            .partnership-card.featured:hover {
                transform: scale(1.03);
            }

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

            .process-step::after {
                display: none;
            }

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

            .cta-form-inner {
                grid-template-columns: 1fr;
            }

            .hero-title {
                font-size: 2.2rem;
            }

            .header-nav a {
                padding: 0.4rem 0.55rem;
                font-size: 0.8rem;
            }

            .header-search input {
                width: 130px;
            }

            .header-search input:focus {
                width: 160px;
            }

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

        @media (max-width: 768px) {
            .header-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 1rem;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                z-index: 999;
            }

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

            .header-nav a {
                width: 100%;
                padding: 0.7rem 1rem;
                font-size: 0.9rem;
            }

            .mobile-menu-toggle {
                display: block;
            }

            .header-search {
                display: none;
            }

            .header-cta-btn {
                font-size: 0.8rem;
                padding: 0.45rem 1rem;
            }

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

            .hero-title {
                font-size: 1.7rem;
            }

            .hero-subtitle {
                font-size: 1rem;
            }

            .hero-stats-row {
                gap: 0.8rem;
            }

            .hero-stat-item {
                padding: 0.7rem 1rem;
                min-width: 70px;
            }

            .hero-stat-item .stat-number {
                font-size: 1.4rem;
            }

            .partnership-wall {
                grid-template-columns: 1fr;
            }

            .partnership-card.featured {
                grid-column: span 1;
                transform: scale(1);
            }

            .partnership-card.featured:hover {
                transform: scale(1.02);
            }

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

            .partner-types-grid {
                grid-template-columns: 1fr 1fr;
            }

            .cta-form-section {
                padding: 1.5rem;
            }

            .section {
                padding: 2.5rem 0;
            }

            .section-header h2 {
                font-size: 1.5rem;
            }

            .deep-content-block {
                padding: 1.5rem;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }

            .container {
                padding: 0 1rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.4rem;
            }

            .hero-stats-row {
                gap: 0.5rem;
            }

            .hero-stat-item {
                padding: 0.5rem 0.7rem;
                min-width: 60px;
                border-radius: var(--radius-sm);
            }

            .hero-stat-item .stat-number {
                font-size: 1.1rem;
            }

            .hero-stat-item .stat-label {
                font-size: 0.7rem;
            }

            .hero-cta-group {
                flex-direction: column;
                gap: 0.6rem;
            }

            .btn-primary-lg,
            .btn-outline-lg {
                text-align: center;
                width: 100%;
            }

            .partner-types-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }

            .cta-form-fields {
                padding: 1.2rem;
            }

            .partnership-card {
                padding: 1.2rem 1rem;
            }
        }