/* CSS Reset & Variable Definitions */
        :root {
            --primary: #FF6600;
            --primary-dark: #E05500;
            --primary-light: #FFEFE5;
            --text-dark: #1F1F24;
            --text-muted: #5C5C66;
            --bg-light: #FAFAFB;
            --bg-white: #FFFFFF;
            --border-color: #E5E5EA;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(255, 102, 0, 0.08);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.08);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            font-family: var(--font-family);
            background-color: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.6;
        }

        body {
            position: relative;
        }

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

        /* Layout Container */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-padding {
            padding: 80px 0;
        }

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

        .section-header h2 {
            font-size: 32px;
            color: var(--text-dark);
            margin-bottom: 16px;
            font-weight: 700;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--primary);
            margin: 8px auto 0;
            border-radius: 2px;
        }

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

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 16px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            cursor: pointer;
            border: none;
            outline: none;
        }

        .btn-primary {
            background-color: var(--primary);
            color: var(--bg-white);
            box-shadow: 0 4px 14px rgba(255, 102, 0, 0.3);
        }

        .btn-primary:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 102, 0, 0.4);
        }

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

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

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

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

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

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

        .brand-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: 0.5px;
        }

        .nav-links {
            display: flex;
            gap: 24px;
            list-style: none;
            align-items: center;
        }

        .nav-links a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-dark);
        }

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

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            border: none;
            background: transparent;
        }

        .nav-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--text-dark);
            transition: all 0.3s ease;
        }

        /* Hero Section (No Image Allowed) */
        .hero {
            background: radial-gradient(circle at 80% 20%, rgba(255, 102, 0, 0.08) 0%, transparent 50%), 
                        linear-gradient(135deg, #FFFFFF 0%, #FDF8F5 100%);
            padding: 100px 0 80px 0;
            text-align: center;
            border-bottom: 1px solid var(--border-color);
        }

        .hero-h1 {
            font-size: 44px;
            line-height: 1.25;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 24px;
            letter-spacing: -0.5px;
        }

        .hero-h1 span {
            color: var(--primary);
            position: relative;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 750px;
            margin: 0 auto 36px auto;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 48px;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 900px;
            margin: 0 auto;
            background: var(--bg-white);
            padding: 24px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            border: 1px solid rgba(255, 102, 0, 0.1);
        }

        .stat-item h3 {
            font-size: 28px;
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 4px;
        }

        .stat-item p {
            font-size: 14px;
            color: var(--text-muted);
        }

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

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

        .about-content h3 {
            font-size: 24px;
            color: var(--text-dark);
            margin-bottom: 16px;
        }

        .about-features {
            margin-top: 24px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .about-feature-card {
            background-color: var(--bg-light);
            padding: 16px;
            border-radius: var(--radius-sm);
            border-left: 4px solid var(--primary);
        }

        .about-feature-card h4 {
            font-size: 16px;
            margin-bottom: 6px;
            color: var(--text-dark);
        }

        .about-feature-card p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* AIGC Model Logos Bar */
        .model-scroller {
            background: var(--bg-light);
            padding: 30px 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
        }

        .model-list-wrapper {
            display: flex;
            overflow-x: auto;
            white-space: nowrap;
            gap: 30px;
            padding: 10px 0;
            scrollbar-width: none; /* Firefox */
        }
        .model-list-wrapper::-webkit-scrollbar {
            display: none; /* Chrome */
        }

        .model-badge {
            background: var(--bg-white);
            color: var(--text-dark);
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            border: 1px solid var(--border-color);
            display: inline-block;
            box-shadow: var(--shadow-sm);
        }

        /* Services & Production */
        .services-section {
            background-color: var(--bg-light);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .service-card {
            background-color: var(--bg-white);
            padding: 32px 24px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            border: 1px solid transparent;
        }

        .service-card:hover {
            transform: translateY(-5px);
            border-color: rgba(255, 102, 0, 0.2);
            box-shadow: var(--shadow-md);
        }

        .service-icon {
            font-size: 36px;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .service-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

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

        /* Workflow & Standards */
        .workflow-section {
            background-color: var(--bg-white);
        }

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

        .step-card {
            background: var(--bg-light);
            padding: 24px;
            border-radius: var(--radius-md);
            text-align: center;
            position: relative;
        }

        .step-num {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: var(--bg-white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin: 0 auto 16px auto;
        }

        .step-card h3 {
            font-size: 18px;
            margin-bottom: 10px;
        }

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

        /* Comparison Board */
        .comparison-section {
            background-color: var(--bg-light);
        }

        .rating-box {
            background: var(--primary-light);
            border: 1px solid rgba(255, 102, 0, 0.2);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
            max-width: 600px;
            margin: 0 auto 40px auto;
        }

        .rating-score {
            font-size: 48px;
            font-weight: 800;
            color: var(--primary);
        }

        .rating-stars {
            color: #FFB800;
            font-size: 24px;
            margin: 8px 0;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            background-color: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }

        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

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

        th {
            background-color: #FDF8F5;
            color: var(--text-dark);
            font-weight: 600;
        }

        tr:hover {
            background-color: var(--bg-light);
        }

        .badge-yes {
            color: #24C26B;
            font-weight: 600;
        }

        .badge-no {
            color: #FF3B30;
            font-weight: 600;
        }

        /* Token Price Reference */
        .token-section {
            background-color: var(--bg-white);
        }

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

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

        .network-info {
            background: var(--bg-white);
            padding: 30px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }

        .network-list {
            list-style: none;
        }

        .network-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
        }

        .network-list li:last-child {
            border-bottom: none;
        }

        /* Training Section */
        .training-section {
            background: linear-gradient(135deg, #1F1F24 0%, #2D2D35 100%);
            color: var(--bg-white);
        }

        .training-section .section-header h2 {
            color: var(--bg-white);
        }

        .training-section .section-header p {
            color: #A1A1AA;
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .training-card {
            background-color: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 24px;
            border-radius: var(--radius-md);
            transition: all 0.3s ease;
        }

        .training-card:hover {
            background-color: rgba(255, 102, 0, 0.1);
            border-color: var(--primary);
            transform: translateY(-5px);
        }

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

        .training-card p {
            font-size: 13px;
            color: #D1D1D6;
        }

        /* Cases Center (Images Here) */
        .cases-section {
            background-color: var(--bg-white);
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-bottom: 40px;
        }

        .case-card {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }

        .case-img-container {
            width: 100%;
            height: 240px;
            overflow: hidden;
            background: #E5E5EA;
        }

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

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

        .case-info {
            padding: 20px;
        }

        .case-info h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }

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

        .banner-gallery {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 30px;
        }

        .banner-item {
            border-radius: var(--radius-sm);
            overflow: hidden;
            height: 150px;
            border: 1px solid var(--border-color);
        }

        .banner-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Agent Info */
        .agent-section {
            background: var(--primary-light);
            border-top: 1px solid rgba(255, 102, 0, 0.1);
            border-bottom: 1px solid rgba(255, 102, 0, 0.1);
        }

        .agent-box {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 40px;
            align-items: center;
        }

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

        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 16px 0;
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            padding: 8px 0;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            color: var(--text-muted);
            font-size: 14px;
            padding-top: 8px;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            transition: max-height 0.5s ease-in-out;
        }

        .faq-icon::after {
            content: '+';
            font-size: 20px;
            color: var(--primary);
            font-weight: bold;
        }

        .faq-item.active .faq-icon::after {
            content: '−';
        }

        /* Knowledge & Self-check */
        .knowledge-section {
            background-color: var(--bg-light);
        }

        .knowledge-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .terms-box, .articles-box {
            background: var(--bg-white);
            padding: 30px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }

        .terms-list dt {
            font-weight: 600;
            color: var(--primary);
            margin-top: 12px;
        }

        .terms-list dd {
            font-size: 13px;
            color: var(--text-muted);
            margin-left: 0;
            padding-bottom: 12px;
            border-bottom: 1px dashed var(--border-color);
        }

        .article-list {
            list-style: none;
        }

        .article-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .article-list a {
            font-weight: 500;
            font-size: 14px;
        }

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

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

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

        .review-card {
            background: var(--bg-light);
            padding: 24px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border-top: 3px solid var(--primary);
        }

        .review-text {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 16px;
            font-style: italic;
        }

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

        .review-title {
            font-size: 12px;
            color: var(--primary);
        }

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

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
        }

        .contact-info-panel {
            background: var(--bg-white);
            padding: 40px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }

        .contact-method {
            margin-bottom: 24px;
        }

        .contact-method h4 {
            font-size: 16px;
            margin-bottom: 6px;
            color: var(--text-dark);
        }

        .contact-method p {
            font-size: 14px;
            color: var(--text-muted);
        }

        .qr-code-box {
            margin-top: 20px;
            padding: 16px;
            background: var(--bg-light);
            border-radius: var(--radius-sm);
            display: inline-block;
            text-align: center;
        }

        .qr-code-box img {
            max-width: 150px;
            height: auto;
            margin-bottom: 8px;
        }

        /* Form styling */
        .form-panel {
            background: var(--bg-white);
            padding: 40px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }

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

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-dark);
        }

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

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

        /* Footer */
        footer {
            background-color: #1F1F24;
            color: #A1A1AA;
            padding: 60px 0 30px 0;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: var(--bg-white);
            margin-bottom: 20px;
            font-size: 16px;
            font-weight: 600;
        }

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

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

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

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 10px;
        }

        .friend-links a {
            color: #71717A;
            font-size: 13px;
        }

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

        .footer-bottom {
            border-top: 1px solid #2D2D35;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* Floating Widgets */
        .floating-widget {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background-color: var(--primary);
            color: var(--bg-white);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-lg);
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 20px;
            position: relative;
        }

        .float-btn:hover {
            background-color: var(--primary-dark);
            transform: scale(1.1);
        }

        .qr-popup {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: var(--bg-white);
            padding: 16px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            display: none;
            text-align: center;
            width: 180px;
            border: 1px solid var(--border-color);
        }

        .qr-popup img {
            width: 100%;
            height: auto;
        }

        .qr-popup p {
            color: var(--text-dark);
            font-size: 12px;
            margin-top: 6px;
        }

        .float-btn:hover .qr-popup {
            display: block;
        }

        /* Responsive Breakpoints */
        @media (max-width: 992px) {
            .about-grid, .network-grid, .contact-grid, .agent-box {
                grid-template-columns: 1fr;
            }
            .hero-h1 {
                font-size: 34px;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-container {
                grid-template-columns: repeat(2, 1fr);
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--bg-white);
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                box-shadow: var(--shadow-md);
            }
            .nav-links.active {
                display: flex;
            }
            .nav-toggle {
                display: flex;
            }
            .banner-gallery {
                grid-template-columns: repeat(2, 1fr);
            }
            .cases-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 480px) {
            .hero-stats {
                grid-template-columns: 1fr;
            }
            .steps-container {
                grid-template-columns: 1fr;
            }
            .hero-actions {
                flex-direction: column;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }