:root {
            --primary-color: #e60012;
            --primary-hover: #b8000e;
            --primary-light: #fff0f0;
            --dark-color: #1a1a1a;
            --text-color: #333333;
            --text-light: #666666;
            --bg-light: #fdfdfd;
            --bg-gray: #f8f9fa;
            --border-color: #eaeaea;
            --shadow-sm: 0 2px 8px rgba(230, 0, 18, 0.05);
            --shadow-md: 0 8px 24px rgba(230, 0, 18, 0.08);
            --container-width: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-color);
            background-color: var(--bg-light);
        }

        body {
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        /* Layout Container */
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

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

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

        .logo-area {
            display: flex;
            align-items: center;
            gap: 12px;
        }

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

        .nav-links {
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .nav-links a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-color);
            padding: 6px 12px;
            border-radius: 4px;
        }

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

        .nav-links .cta-nav-btn {
            background-color: var(--primary-color);
            color: #ffffff;
            border-radius: 20px;
            padding: 8px 18px;
        }

        .nav-links .cta-nav-btn:hover {
            background-color: var(--primary-hover);
            color: #ffffff;
        }

        /* Mobile Menu Toggle */
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--text-color);
        }

        /* Sections */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

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

        .section-title h2 {
            font-size: 32px;
            color: var(--dark-color);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 3px;
            background-color: var(--primary-color);
        }

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

        /* Hero Section (No Images as per requirements) */
        .hero-section {
            background: linear-gradient(135deg, #fff5f5 0%, #ffffff 50%, #fff0f0 100%);
            padding: 100px 0 80px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(230,0,18,0.05) 0%, transparent 70%);
            top: -10%;
            left: -10%;
            border-radius: 50%;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(230,0,18,0.03) 0%, transparent 70%);
            bottom: -20%;
            right: -10%;
            border-radius: 50%;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 850px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-block;
            background-color: var(--primary-light);
            color: var(--primary-color);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
            border: 1px solid rgba(230, 0, 18, 0.2);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }

        .hero-content h1 {
            font-size: 40px;
            line-height: 1.3;
            color: var(--dark-color);
            margin-bottom: 24px;
            font-weight: 800;
        }

        .hero-content p.lead {
            font-size: 18px;
            color: var(--text-light);
            margin-bottom: 35px;
            line-height: 1.8;
        }

        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 600;
            transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
            cursor: pointer;
            box-shadow: var(--shadow-sm);
        }

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

        .btn-primary:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-secondary {
            background-color: #ffffff;
            color: var(--text-color);
            border: 1px solid var(--border-color);
        }

        .btn-secondary:hover {
            background-color: var(--bg-gray);
            transform: translateY(-2px);
        }

        /* Data Indicators */
        .data-indicators {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 60px;
        }

        .indicator-card {
            background: #ffffff;
            padding: 24px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: transform 0.3s ease;
        }

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

        .indicator-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary-color);
            margin-bottom: 5px;
        }

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

        /* About Us & Platform Intro */
        .about-section {
            background-color: var(--bg-gray);
        }

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

        .about-text h3 {
            font-size: 24px;
            color: var(--dark-color);
            margin-bottom: 20px;
        }

        .about-text p {
            margin-bottom: 15px;
            color: var(--text-light);
            font-size: 15px;
        }

        .platform-points {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 25px;
        }

        .point-item {
            background: #ffffff;
            padding: 15px;
            border-left: 3px solid var(--primary-color);
            border-radius: 0 8px 8px 0;
            font-size: 14px;
            font-weight: 500;
        }

        /* AIGC Services & One-stop Production */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
            margin-bottom: 50px;
        }

        .service-card {
            background: #ffffff;
            padding: 30px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-md);
            border-color: rgba(230,0,18,0.2);
        }

        .service-icon {
            font-size: 28px;
            color: var(--primary-color);
            margin-bottom: 20px;
            background-color: var(--primary-light);
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
        }

        .service-card h3 {
            font-size: 18px;
            margin-bottom: 12px;
            color: var(--dark-color);
        }

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

        /* Supported Models Tag Cloud */
        .models-cloud {
            background-color: var(--bg-gray);
            padding: 40px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            margin-top: 40px;
        }

        .models-cloud h4 {
            text-align: center;
            margin-bottom: 20px;
            font-size: 18px;
            color: var(--dark-color);
        }

        .tags-wrapper {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .tag-node {
            background-color: #ffffff;
            color: var(--text-color);
            border: 1px solid var(--border-color);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            transition: all 0.2s ease;
        }

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

        /* One-stop Production Showcase */
        .production-showcase {
            background-color: var(--bg-light);
        }

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

        .showcase-images {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .showcase-img-box {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .showcase-img-box img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .showcase-img-box:hover img {
            transform: scale(1.03);
        }

        /* Solutions */
        .solutions-section {
            background-color: var(--bg-gray);
        }

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

        .sol-card {
            background: #ffffff;
            border-radius: 10px;
            padding: 24px;
            border-top: 4px solid var(--primary-color);
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }

        .sol-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }

        .sol-card h4 {
            font-size: 16px;
            color: var(--dark-color);
            margin-bottom: 12px;
        }

        .sol-card ul {
            list-style: none;
            padding-left: 0;
        }

        .sol-card ul li {
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 8px;
            position: relative;
            padding-left: 14px;
        }

        .sol-card ul li::before {
            content: "•";
            position: absolute;
            left: 0;
            color: var(--primary-color);
        }

        /* Service Network & Standardized Process */
        .process-flow {
            display: flex;
            justify-content: space-between;
            gap: 15px;
            flex-wrap: wrap;
            margin-top: 40px;
        }

        .process-step {
            flex: 1;
            min-width: 180px;
            background: var(--bg-gray);
            padding: 24px 16px;
            border-radius: 10px;
            text-align: center;
            position: relative;
            border: 1px solid var(--border-color);
        }

        .step-num {
            width: 35px;
            height: 35px;
            background-color: var(--primary-color);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 15px;
            font-weight: 700;
        }

        .process-step h4 {
            font-size: 15px;
            margin-bottom: 8px;
            color: var(--dark-color);
        }

        .process-step p {
            font-size: 12px;
            color: var(--text-light);
        }

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

        .cases-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            align-items: center;
        }

        .case-banner-box {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .case-banner-box img {
            width: 100%;
            height: auto;
            display: block;
        }

        .case-details {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .case-card {
            background: #ffffff;
            padding: 20px;
            border-radius: 10px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        .case-card h4 {
            font-size: 16px;
            color: var(--dark-color);
            margin-bottom: 8px;
        }

        .case-card p {
            font-size: 13px;
            color: var(--text-light);
        }

        /* Evaluation Section */
        .eval-section {
            background: linear-gradient(180deg, #ffffff 0%, #fff7f7 100%);
        }

        .eval-container {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            align-items: center;
        }

        .eval-score-card {
            background-color: #ffffff;
            border: 2px solid var(--primary-color);
            border-radius: 16px;
            padding: 40px 30px;
            text-align: center;
            box-shadow: var(--shadow-md);
        }

        .stars {
            font-size: 28px;
            color: #ff9900;
            margin-bottom: 10px;
        }

        .score-num {
            font-size: 64px;
            font-weight: 800;
            color: var(--primary-color);
            line-height: 1;
        }

        .score-max {
            font-size: 16px;
            color: var(--text-light);
            margin-bottom: 15px;
        }

        .eval-table-wrapper {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow-x: auto;
            box-shadow: var(--shadow-sm);
        }

        .eval-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 14px;
        }

        .eval-table th, .eval-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
        }

        .eval-table th {
            background-color: var(--bg-gray);
            color: var(--dark-color);
            font-weight: 600;
        }

        .eval-table td strong {
            color: var(--primary-color);
        }

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

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

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

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

        .token-card-header {
            background-color: var(--primary-color);
            color: #ffffff;
            padding: 20px;
            text-align: center;
        }

        .token-card-header h4 {
            font-size: 18px;
        }

        .token-price {
            font-size: 28px;
            font-weight: 700;
            margin: 10px 0;
        }

        .token-card-body {
            padding: 24px;
        }

        .token-card-body ul {
            list-style: none;
            padding: 0;
        }

        .token-card-body ul li {
            padding: 10px 0;
            border-bottom: 1px dashed var(--border-color);
            font-size: 13px;
            color: var(--text-light);
            display: flex;
            justify-content: space-between;
        }

        /* Training Sections */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
            margin-top: 30px;
        }

        .training-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 20px 15px;
            border-radius: 8px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }

        .training-card:hover {
            border-color: var(--primary-color);
            box-shadow: var(--shadow-md);
        }

        .training-card h4 {
            font-size: 14px;
            color: var(--dark-color);
            margin-bottom: 10px;
            font-weight: 700;
        }

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

        /* Form Section & Matcher */
        .form-section {
            background-color: var(--bg-gray);
        }

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

        .form-info h3 {
            font-size: 28px;
            color: var(--dark-color);
            margin-bottom: 20px;
        }

        .form-info p {
            color: var(--text-light);
            font-size: 15px;
            margin-bottom: 25px;
        }

        .contact-details {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 15px;
        }

        .contact-icon {
            color: var(--primary-color);
            font-weight: bold;
        }

        .form-card {
            background: #ffffff;
            padding: 40px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-md);
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 14px;
            transition: border-color 0.3s;
            outline: none;
        }

        .form-control:focus {
            border-color: var(--primary-color);
        }

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

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

        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 15px 0;
        }

        .faq-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            padding: 10px 0;
        }

        .faq-question {
            font-size: 16px;
            font-weight: 600;
            color: var(--dark-color);
        }

        .faq-toggle {
            font-size: 20px;
            color: var(--text-light);
            transition: transform 0.3s;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            color: var(--text-light);
            font-size: 14px;
            padding-right: 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            margin-top: 10px;
            margin-bottom: 10px;
        }

        .faq-item.active .faq-toggle {
            transform: rotate(45deg);
            color: var(--primary-color);
        }

        /* Glossary tags */
        .glossary-cloud {
            text-align: center;
            margin-top: 40px;
        }

        .glossary-cloud h4 {
            margin-bottom: 15px;
            font-size: 16px;
            color: var(--dark-color);
        }

        /* User Reviews */
        .reviews-section {
            background-color: var(--bg-gray);
        }

        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .review-card {
            background: #ffffff;
            padding: 30px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        .review-rating {
            color: #ff9900;
            font-size: 16px;
            margin-bottom: 12px;
        }

        .review-content {
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 20px;
            line-height: 1.6;
        }

        .review-user {
            display: flex;
            flex-direction: column;
        }

        .review-user-name {
            font-weight: 600;
            font-size: 14px;
            color: var(--dark-color);
        }

        .review-user-role {
            font-size: 12px;
            color: var(--text-light);
        }

        /* Articles / Knowledge Base */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
            margin-top: 30px;
        }

        .article-card {
            background: #ffffff;
            padding: 16px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            transition: all 0.3s;
        }

        .article-card:hover {
            border-color: var(--primary-color);
            transform: translateY(-3px);
        }

        .article-card h4 {
            font-size: 13px;
            color: var(--dark-color);
            margin-bottom: 10px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card a {
            font-size: 12px;
            color: var(--primary-color);
            font-weight: 500;
        }

        /* Floating Widgets */
        .floating-contact {
            position: fixed;
            right: 20px;
            bottom: 80px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            cursor: pointer;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            position: relative;
        }

        .float-btn:hover {
            background-color: var(--primary-hover);
        }

        .float-panel {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 20px;
            box-shadow: var(--shadow-md);
            display: none;
            width: 220px;
            text-align: center;
        }

        .float-panel img {
            width: 120px;
            height: 120px;
            margin-bottom: 10px;
        }

        .float-panel p {
            font-size: 12px;
            color: var(--text-color);
        }

        .float-btn:hover .float-panel {
            display: block;
        }

        /* Footer */
        footer {
            background-color: var(--dark-color);
            color: #d1d1d1;
            padding: 60px 0 20px;
            font-size: 14px;
        }

        footer .container {
            display: flex;
            flex-direction: column;
            gap: 40px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }

        .footer-col h5 {
            color: #ffffff;
            font-size: 16px;
            margin-bottom: 20px;
            position: relative;
        }

        .footer-col h5::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 30px;
            height: 2px;
            background-color: var(--primary-color);
        }

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

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

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

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .friend-links a {
            background-color: #2a2a2a;
            color: #a0a0a0;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 12px;
        }

        .friend-links a:hover {
            color: #ffffff;
            background-color: var(--primary-color);
        }

        .footer-bottom {
            border-top: 1px solid #2d2d2d;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 12px;
        }

        /* Responsive Breakpoints */
        @media (max-width: 992px) {
            .about-grid, .showcase-grid, .cases-grid, .eval-container, .form-container {
                grid-template-columns: 1fr;
            }
            .services-grid, .token-grid, .reviews-grid {
                grid-template-columns: 1fr 1fr;
            }
            .solution-cards {
                grid-template-columns: 1fr 1fr;
            }
            .training-grid, .articles-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
            .data-indicators {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: #ffffff;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 10px;
                box-shadow: var(--shadow-md);
            }
            .nav-links.active {
                display: flex;
            }
            .menu-toggle {
                display: block;
            }
            .hero-content h1 {
                font-size: 28px;
            }
            .hero-content p.lead {
                font-size: 15px;
            }
            .services-grid, .token-grid, .reviews-grid, .solution-cards, .training-grid, .articles-grid, .data-indicators {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }