:root {
            --primary: #2563eb;
            --primary-light: #eff6ff;
            --secondary: #06b6d4;
            --accent: #7c3aed;
            --dark: #0f172a;
            --gray-text: #475569;
            --light-bg: #f8fafc;
            --border-color: #e2e8f0;
            --success: #10b981;
            --warning: #f59e0b;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
            color: var(--dark);
            background-color: #ffffff;
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header Style */
        header {
            position: sticky;
            top: 0;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

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

        .ai-page-logo {
            height: 40px;
            width: auto;
        }

        .nav-menu {
            display: flex;
            gap: 20px;
            list-style: none;
        }

        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--gray-text);
        }

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

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            color: #ffffff;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.3);
        }

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

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

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: none;
            border: none;
        }

        .nav-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--dark);
            border-radius: 2px;
            transition: 0.3s;
        }

        /* Section Global Settings */
        section {
            padding: 80px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-tag {
            display: inline-block;
            padding: 4px 12px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 15px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--gray-text);
            max-width: 600px;
            margin: 0 auto;
        }

        /* Hero Section (No Image!) */
        .hero-section {
            background: radial-gradient(circle at 10% 20%, rgba(239, 246, 255, 0.5) 0%, rgba(245, 243, 255, 0.5) 90%);
            padding: 100px 0 120px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -10%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, transparent 70%);
            z-index: 1;
            filter: blur(50px);
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -10%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, transparent 70%);
            z-index: 1;
            filter: blur(50px);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid var(--border-color);
            border-radius: 30px;
            font-size: 14px;
            margin-bottom: 25px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);
        }

        .hero-badge span {
            color: var(--accent);
            font-weight: 700;
        }

        h1.hero-title {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.2;
            background: linear-gradient(135deg, var(--dark) 30%, var(--primary) 70%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 20px;
        }

        .hero-subtitle {
            font-size: 18px;
            color: var(--gray-text);
            margin-bottom: 35px;
            line-height: 1.8;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 50px;
        }

        .hero-btns .btn {
            padding: 14px 32px;
            font-size: 16px;
        }

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

        .stat-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 20px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
            transition: transform 0.3s ease;
        }

        .stat-card:hover {
            transform: translateY(-5px);
        }

        .stat-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
        }

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

        /* About Us Section */
        .about-section {
            background-color: var(--light-bg);
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 24px;
            margin-bottom: 20px;
        }

        .about-text p {
            color: var(--gray-text);
            margin-bottom: 20px;
        }

        .feature-list {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }

        .feature-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            font-weight: 600;
        }

        .feature-icon {
            color: var(--success);
            font-weight: bold;
        }

        .about-visual {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            border-radius: 20px;
            padding: 40px;
            color: #ffffff;
            box-shadow: 0 20px 40px rgba(124, 58, 237, 0.15);
        }

        .visual-card {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 12px;
            padding: 20px;
            margin-bottom: 15px;
        }

        .visual-card:last-child {
            margin-bottom: 0;
        }

        /* Multi-platform AIGC Services */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 15px;
        }

        .service-tag-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 15px;
            text-align: center;
            font-weight: 700;
            transition: all 0.3s ease;
            box-shadow: 0 2px 4px rgba(0,0,0,0.01);
        }

        .service-tag-card:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.1);
            transform: translateY(-2px);
        }

        /* One-stop AIGC Production */
        .prod-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .prod-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
            transition: all 0.3s;
        }

        .prod-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.05);
            border-color: var(--accent);
        }

        .prod-icon {
            width: 50px;
            height: 50px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
        }

        .prod-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
        }

        .prod-card p {
            color: var(--gray-text);
            font-size: 14px;
        }

        /* Solutions Section */
        .solution-section {
            background-color: var(--light-bg);
        }

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

        .sol-card {
            background: #ffffff;
            border-radius: 12px;
            padding: 24px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 6px rgba(0,0,0,0.01);
        }

        .sol-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--dark);
        }

        .sol-desc {
            font-size: 14px;
            color: var(--gray-text);
        }

        /* Service Network */
        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

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

        .network-item {
            background: var(--light-bg);
            padding: 20px;
            border-radius: 8px;
            border-left: 4px solid var(--primary);
        }

        .network-item h4 {
            font-size: 16px;
            margin-bottom: 5px;
        }

        .network-item p {
            font-size: 12px;
            color: var(--gray-text);
        }

        /* Standardized AIGC Workflow */
        .flow-section {
            background: var(--light-bg);
        }

        .flow-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            position: relative;
        }

        .flow-card {
            background: #ffffff;
            padding: 24px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            text-align: center;
            position: relative;
        }

        .flow-step {
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 30px;
            height: 30px;
            background: var(--accent);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 14px;
        }

        .flow-card h4 {
            margin-top: 15px;
            margin-bottom: 10px;
        }

        .flow-card p {
            font-size: 12px;
            color: var(--gray-text);
        }

        /* Technical Standards */
        .standards-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .standard-item {
            display: flex;
            gap: 20px;
            background: #ffffff;
            padding: 24px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .standard-icon {
            font-size: 24px;
            color: var(--accent);
        }

        .standard-info h4 {
            font-size: 18px;
            margin-bottom: 8px;
        }

        .standard-info p {
            font-size: 14px;
            color: var(--gray-text);
        }

        /* Case Section */
        .case-section {
            background-color: var(--light-bg);
        }

        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .case-card {
            background: #ffffff;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 10px rgba(0,0,0,0.02);
        }

        .case-media {
            width: 100%;
            height: 250px;
            overflow: hidden;
            background: #f1f5f9;
        }

        .case-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .case-info {
            padding: 24px;
        }

        .case-tag {
            display: inline-block;
            padding: 2px 8px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            border-radius: 4px;
            margin-bottom: 10px;
            font-weight: 700;
        }

        .case-info h4 {
            font-size: 20px;
            margin-bottom: 10px;
        }

        .case-info p {
            font-size: 14px;
            color: var(--gray-text);
        }

        /* Comparison Section */
        .comp-table-container {
            overflow-x: auto;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            background: #ffffff;
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
        }

        .comp-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 800px;
        }

        .comp-table th, .comp-table td {
            padding: 16px 24px;
            border-bottom: 1px solid var(--border-color);
        }

        .comp-table th {
            background: var(--light-bg);
            font-weight: 700;
        }

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

        .comp-highlight {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
        }

        .rating-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: #fffbeb;
            color: #d97706;
            padding: 4px 10px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 14px;
        }

        /* Interactive Demand Matching Tool */
        .demand-section {
            background: linear-gradient(135deg, #eff6ff 0%, #f5f3ff 100%);
        }

        .interactive-tool {
            background: #ffffff;
            border-radius: 16px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            max-width: 800px;
            margin: 0 auto;
        }

        .tool-step-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .tool-options {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
            margin-bottom: 30px;
        }

        .tool-option {
            border: 2px solid var(--border-color);
            padding: 15px;
            border-radius: 10px;
            cursor: pointer;
            text-align: center;
            transition: all 0.3s;
        }

        .tool-option:hover {
            border-color: var(--primary);
            background: var(--primary-light);
        }

        .tool-option.active {
            border-color: var(--primary);
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
        }

        .tool-result {
            display: none;
            padding: 20px;
            background: var(--light-bg);
            border-radius: 8px;
            margin-top: 20px;
            border-left: 4px solid var(--success);
        }

        /* Token Pricing Section */
        .token-section {
            background-color: var(--light-bg);
        }

        .price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .price-card {
            background: #ffffff;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            padding: 30px;
            position: relative;
            overflow: hidden;
        }

        .price-card.popular {
            border-color: var(--primary);
            box-shadow: 0 10px 25px rgba(37, 99, 235, 0.1);
        }

        .price-badge {
            position: absolute;
            top: 15px;
            right: -30px;
            background: var(--primary);
            color: #ffffff;
            padding: 4px 30px;
            font-size: 12px;
            transform: rotate(45deg);
        }

        .price-header h4 {
            font-size: 20px;
            margin-bottom: 10px;
        }

        .price-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 15px;
        }

        .price-num span {
            font-size: 16px;
            font-weight: 400;
            color: var(--gray-text);
        }

        .price-features {
            list-style: none;
            margin-bottom: 30px;
        }

        .price-features li {
            padding: 8px 0;
            font-size: 14px;
            border-bottom: 1px dashed var(--border-color);
        }

        /* Training Sections */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .train-card {
            background: #ffffff;
            border-radius: 16px;
            padding: 30px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 6px rgba(0,0,0,0.01);
        }

        .train-card h4 {
            font-size: 18px;
            margin-bottom: 12px;
            color: var(--dark);
        }

        .train-card p {
            font-size: 14px;
            color: var(--gray-text);
            margin-bottom: 20px;
        }

        .train-meta {
            font-size: 12px;
            color: var(--accent);
            font-weight: 700;
        }

        /* Help Center */
        .help-section {
            background-color: var(--light-bg);
        }

        .help-grid {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 50px;
        }

        .help-nav {
            background: #ffffff;
            padding: 24px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            height: fit-content;
        }

        .help-nav-item {
            display: block;
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 14px;
            margin-bottom: 8px;
            transition: all 0.3s;
            cursor: pointer;
        }

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

        .help-nav-item:hover, .help-nav-item.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
        }

        /* FAQ Section */
        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
            background: #ffffff;
        }

        .faq-header {
            padding: 18px 24px;
            background: #ffffff;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
            font-weight: 600;
            font-size: 15px;
        }

        .faq-icon {
            font-size: 18px;
            transition: transform 0.3s ease;
        }

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: var(--light-bg);
        }

        .faq-content {
            padding: 20px 24px;
            font-size: 14px;
            color: var(--gray-text);
        }

        .faq-item.active .faq-body {
            max-height: 300px;
        }

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

        /* Troubleshooting Section */
        .trouble-card {
            background: #ffffff;
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
            margin-top: 30px;
        }

        .trouble-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 20px;
        }

        .trouble-item {
            border-left: 3px solid var(--warning);
            padding-left: 15px;
        }

        .trouble-item h5 {
            font-size: 15px;
            margin-bottom: 5px;
        }

        .trouble-item p {
            font-size: 13px;
            color: var(--gray-text);
        }

        /* AI Glossary / Tag Cloud */
        .glossary-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .glossary-tag {
            background: var(--light-bg);
            border: 1px solid var(--border-color);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 13px;
            transition: all 0.3s;
            cursor: pointer;
        }

        .glossary-tag:hover {
            background: var(--accent);
            color: #ffffff;
            border-color: var(--accent);
        }

        /* User Reviews */
        .review-section {
            background: var(--light-bg);
        }

        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.01);
        }

        .review-text {
            font-size: 14px;
            color: var(--gray-text);
            margin-bottom: 20px;
            font-style: italic;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .user-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }

        .user-info h5 {
            font-size: 15px;
            margin-bottom: 2px;
        }

        .user-info span {
            font-size: 12px;
            color: var(--gray-text);
        }

        /* Knowledge Base / Articles */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .article-card {
            background: #ffffff;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: transform 0.3s;
        }

        .article-card:hover {
            transform: translateY(-5px);
        }

        .article-info {
            padding: 24px;
        }

        .article-meta {
            font-size: 12px;
            color: var(--gray-text);
            margin-bottom: 8px;
        }

        .article-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--dark);
        }

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

        /* Contact & Forms */
        .contact-section {
            background-color: var(--light-bg);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }

        .contact-info-panel {
            background: #ffffff;
            border-radius: 16px;
            padding: 40px;
            border: 1px solid var(--border-color);
        }

        .info-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
            margin-bottom: 25px;
        }

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

        .info-icon {
            font-size: 20px;
            color: var(--primary);
        }

        .info-details h4 {
            font-size: 16px;
            margin-bottom: 5px;
        }

        .info-details p {
            font-size: 14px;
            color: var(--gray-text);
        }

        .kefu-qr-wrap {
            margin-top: 30px;
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .kefu-qr {
            width: 120px;
            height: 120px;
            border: 1px solid var(--border-color);
            padding: 5px;
            border-radius: 8px;
        }

        .contact-form-panel {
            background: #ffffff;
            border-radius: 16px;
            padding: 40px;
            border: 1px solid var(--border-color);
        }

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

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 14px;
            transition: all 0.3s;
        }

        .form-control:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
        }

        /* Franchise / Agent Info */
        .franchise-section {
            background: linear-gradient(135deg, var(--dark) 0%, #1e1b4b 100%);
            color: #ffffff;
        }

        .franchise-section .section-title {
            color: #ffffff;
        }

        .franchise-section .section-desc {
            color: #94a3b8;
        }

        .franchise-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-top: 40px;
        }

        .franchise-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 16px;
            padding: 30px;
            text-align: center;
        }

        .franchise-icon {
            font-size: 32px;
            color: var(--secondary);
            margin-bottom: 15px;
        }

        /* Float Customer Service */
        .float-kefu {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            background: #ffffff;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            border-radius: 12px;
            padding: 15px;
            text-align: center;
            border: 1px solid var(--border-color);
            width: 150px;
        }

        .float-kefu p {
            font-size: 12px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .float-kefu img {
            width: 100%;
            border-radius: 4px;
        }

        /* Footer */
        footer {
            background-color: var(--dark);
            color: #94a3b8;
            padding: 60px 0 30px 0;
            border-top: 1px solid #1e293b;
        }

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

        .footer-about p {
            margin-top: 15px;
            font-size: 14px;
        }

        .footer-links-col h4 {
            color: #ffffff;
            font-size: 16px;
            margin-bottom: 20px;
        }

        .footer-links-col ul {
            list-style: none;
        }

        .footer-links-col ul li {
            margin-bottom: 10px;
        }

        .footer-links-col ul li a {
            font-size: 14px;
        }

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

        .friend-links {
            border-top: 1px solid #1e293b;
            padding-top: 25px;
            margin-top: 25px;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 13px;
        }

        .friend-links a {
            color: #64748b;
        }

        .friend-links a:hover {
            color: #ffffff;
        }

        .copyright-area {
            border-top: 1px solid #1e293b;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .stats-grid, .prod-grid, .sol-grid, .price-grid, .training-grid, .review-grid, .article-grid, .franchise-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #ffffff;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 15px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            }

            .nav-menu.active {
                display: flex;
            }

            .nav-toggle {
                display: flex;
            }

            .about-grid, .network-grid, .standards-grid, .case-grid, .help-grid, .contact-grid, .footer-grid {
                grid-template-columns: 1fr;
            }

            .stats-grid, .prod-grid, .sol-grid, .price-grid, .training-grid, .review-grid, .article-grid, .franchise-grid, .flow-grid {
                grid-template-columns: 1fr;
            }

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