/* CSS Reset & Variables */
        :root {
            --bg-color: #ffffff;
            --bg-alt: #f8f8f8;
            --text-color: #111111;
            --text-muted: #666666;
            --border-color: #e2e2e2;
            --border-dark: #111111;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
            --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
            --font-serif: "Playfair Display", "Noto Serif SC", Georgia, serif;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-color);
            color: var(--text-color);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        section {
            padding: 100px 0;
            border-bottom: 1px solid var(--border-color);
        }

        /* Typography */
        .section-header {
            margin-bottom: 60px;
            text-align: center;
        }

        .section-header span {
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 3px;
            color: var(--text-muted);
            display: block;
            margin-bottom: 10px;
        }

        .section-header h2 {
            font-family: var(--font-serif);
            font-size: 2.2rem;
            font-weight: 700;
            letter-spacing: 1px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            display: block;
            width: 40px;
            height: 2px;
            background: var(--text-color);
            margin: 15px auto 0 auto;
        }

        /* Buttons & Badges */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            letter-spacing: 1px;
            transition: var(--transition);
            border: 1px solid var(--border-dark);
            cursor: pointer;
            background: transparent;
        }

        .btn-primary {
            background-color: var(--border-dark);
            color: var(--bg-color);
        }

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

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

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

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

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 80px;
        }

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

        .logo-box img {
            height: 40px;
            width: auto;
        }

        .logo-box span {
            font-family: var(--font-serif);
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: 1.5px;
        }

        .nav-menu {
            display: flex;
            gap: 30px;
            list-style: none;
        }

        .nav-link {
            font-size: 0.9rem;
            font-weight: 500;
            letter-spacing: 0.5px;
            color: var(--text-muted);
        }

        .nav-link:hover, .nav-link.active {
            color: var(--text-color);
        }

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

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

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 2px;
            background-color: var(--text-color);
            transition: var(--transition);
        }

        /* Hero Section (Strictly Text/Code only, No Images) */
        .hero {
            background: radial-gradient(circle at 10% 20%, rgba(240, 240, 240, 0.3) 0%, rgba(255, 255, 255, 0.7) 90%);
            padding: 120px 0;
            text-align: center;
            border-bottom: 2px solid var(--text-color);
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            border: 1px solid var(--border-color);
            font-size: 0.8rem;
            letter-spacing: 2px;
            margin-bottom: 30px;
            background-color: var(--bg-color);
        }

        .hero h1 {
            font-family: var(--font-serif);
            font-size: 3.5rem;
            line-height: 1.2;
            margin-bottom: 24px;
            letter-spacing: -0.5px;
        }

        .hero p {
            font-size: 1.2rem;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto 40px auto;
        }

        .hero-ctas {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 60px;
        }

        /* Stats Cards (Text based) */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            border-top: 1px solid var(--border-color);
            padding-top: 40px;
        }

        .stat-item h3 {
            font-family: var(--font-serif);
            font-size: 2.5rem;
            margin-bottom: 5px;
        }

        .stat-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* Section 2: About Us */
        .about-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .about-text h3 {
            font-family: var(--font-serif);
            font-size: 1.8rem;
            margin-bottom: 20px;
        }

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

        .about-image img {
            border: 1px solid var(--border-dark);
            padding: 10px;
            background: #fff;
            box-shadow: var(--shadow-md);
        }

        /* Section 3: AIGC Service System */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            border: 1px solid var(--border-color);
            padding: 40px 30px;
            background-color: var(--bg-color);
            transition: var(--transition);
        }

        .service-card:hover {
            border-color: var(--border-dark);
            transform: translateY(-5px);
            box-shadow: var(--shadow-sm);
        }

        .service-card h3 {
            font-family: var(--font-serif);
            font-size: 1.4rem;
            margin: 20px 0 10px 0;
        }

        .service-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 15px;
        }

        .service-tag {
            font-size: 0.75rem;
            padding: 2px 8px;
            background-color: var(--bg-alt);
            border: 1px solid var(--border-color);
        }

        /* Section 4: Workflow Steps */
        .steps-container {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .step-row {
            display: flex;
            border: 1px solid var(--border-color);
            background: var(--bg-color);
            transition: var(--transition);
        }

        .step-row:hover {
            border-color: var(--border-dark);
        }

        .step-num {
            font-family: var(--font-serif);
            font-size: 3rem;
            font-weight: 700;
            padding: 30px 40px;
            background-color: var(--bg-alt);
            border-right: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            min-width: 120px;
        }

        .step-content {
            padding: 30px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .step-content h3 {
            margin-bottom: 8px;
        }

        .step-content p {
            color: var(--text-muted);
            margin: 0;
            font-size: 0.95rem;
        }

        /* Section 5: Solutions (Image Cards) */
        .solution-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .solution-card {
            border: 1px solid var(--border-color);
            padding: 20px;
            background: var(--bg-color);
        }

        .solution-card img {
            width: 100%;
            height: 250px;
            object-fit: cover;
            border: 1px solid var(--border-color);
            margin-bottom: 20px;
            filter: grayscale(100%);
            transition: var(--transition);
        }

        .solution-card:hover img {
            filter: grayscale(0%);
        }

        .solution-card h3 {
            font-family: var(--font-serif);
            font-size: 1.5rem;
            margin-bottom: 10px;
        }

        /* Section 6: Network & Section 7 & 8 */
        .grid-3col {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .card-flat {
            border: 1px solid var(--border-color);
            padding: 30px;
            background: var(--bg-color);
        }

        .card-flat h3 {
            font-family: var(--font-serif);
            margin-bottom: 12px;
        }

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

        .card-flat li {
            margin-bottom: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .card-flat li::before {
            content: '▪';
            color: var(--text-color);
        }

        /* Section 9: Case Studies */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

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

        .case-card:hover {
            transform: scale(1.02);
            box-shadow: var(--shadow-md);
        }

        .case-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            filter: grayscale(100%);
            transition: var(--transition);
        }

        .case-card:hover img {
            filter: grayscale(0%);
        }

        .case-info {
            padding: 15px;
        }

        .case-info h4 {
            font-size: 1rem;
            margin-bottom: 5px;
        }

        .case-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* Section 10: Comparison Table */
        .comparison-wrapper {
            overflow-x: auto;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            margin-bottom: 30px;
        }

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

        th {
            background-color: var(--bg-alt);
            font-weight: 600;
        }

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

        .highlight-td {
            font-weight: bold;
            background-color: rgba(0,0,0,0.02);
        }

        .rating-badge {
            background-color: var(--border-dark);
            color: var(--bg-color);
            padding: 4px 10px;
            font-size: 0.85rem;
            font-weight: bold;
            display: inline-block;
        }

        /* Section 11: Match Tool */
        .match-card {
            background: var(--bg-alt);
            border: 1px solid var(--border-dark);
            padding: 40px;
            max-width: 800px;
            margin: 0 auto;
        }

        .match-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .form-group-full {
            grid-column: span 2;
        }

        label {
            font-size: 0.9rem;
            font-weight: 600;
        }

        select, input, textarea {
            padding: 12px;
            border: 1px solid var(--border-color);
            background: var(--bg-color);
            font-family: inherit;
            transition: var(--transition);
        }

        select:focus, input:focus, textarea:focus {
            outline: none;
            border-color: var(--border-dark);
        }

        .match-result {
            margin-top: 30px;
            padding: 20px;
            border: 1px dashed var(--border-dark);
            background: var(--bg-color);
            display: none;
        }

        /* Section 12-14: Prices & Training */
        .token-header-info {
            text-align: center;
            margin-bottom: 30px;
            color: var(--text-muted);
        }

        /* Section 15-18: Help & FAQ & Glossary */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 20px 0;
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: var(--transition);
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-top: 0;
        }

        .faq-answer.open {
            max-height: 200px;
            margin-top: 15px;
        }

        .faq-icon::before {
            content: '+';
            font-size: 1.5rem;
        }

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

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

        .glossary-item h4 {
            font-family: var(--font-serif);
            margin-bottom: 8px;
            border-bottom: 1px solid var(--text-color);
            padding-bottom: 5px;
        }

        .glossary-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Section 19: Industry Articles */
        .article-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .article-card {
            border: 1px solid var(--border-color);
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition);
        }

        .article-card:hover {
            border-color: var(--border-dark);
            transform: translateX(5px);
        }

        .article-card h3 {
            font-size: 1.1rem;
            margin-bottom: 10px;
        }

        .article-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

        .article-card a {
            font-size: 0.85rem;
            font-weight: 600;
            text-decoration: underline;
        }

        /* Testimonials Section */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-bottom: 60px;
        }

        .testimonial-card {
            border: 1px solid var(--border-color);
            padding: 30px;
            background: var(--bg-color);
            position: relative;
        }

        .testimonial-card::before {
            content: '“';
            font-family: var(--font-serif);
            font-size: 4rem;
            color: #e2e2e2;
            position: absolute;
            top: 10px;
            left: 20px;
            line-height: 1;
            z-index: 1;
        }

        .testimonial-content {
            position: relative;
            z-index: 2;
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testimonial-author h4 {
            font-size: 0.95rem;
            font-weight: 700;
        }

        .testimonial-author span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Section 20: Contact Us Layout */
        .contact-layout {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 60px;
        }

        .contact-info-panel {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .contact-channels {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .channel-card {
            border: 1px solid var(--border-color);
            padding: 20px;
            text-align: center;
        }

        .channel-card img {
            width: 100px;
            height: 100px;
            margin: 15px auto 0 auto;
            border: 1px solid var(--border-color);
        }

        /* Footer */
        footer {
            background-color: var(--border-dark);
            color: var(--bg-color);
            padding: 80px 0 40px 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
            gap: 40px;
            border-bottom: 1px solid #333;
            padding-bottom: 50px;
            margin-bottom: 40px;
        }

        .footer-logo span {
            font-family: var(--font-serif);
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            display: block;
            margin-bottom: 15px;
        }

        .footer-col h4 {
            font-size: 1rem;
            margin-bottom: 20px;
            position: relative;
            color: #fff;
        }

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

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: #bbb;
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 5px;
        }

        .footer-col a {
            color: #bbb;
        }

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

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

        .friend-links-box a {
            font-size: 0.8rem;
            padding: 4px 10px;
            background: #222;
            border: 1px solid #333;
        }

        .friend-links-box a:hover {
            background: #333;
            border-color: #fff;
        }

        .copyright-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #777;
            font-size: 0.8rem;
        }

        /* Floating QR Panel */
        .floating-qr {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            background: #fff;
            border: 1px solid #000;
            box-shadow: var(--shadow-md);
            padding: 12px;
            text-align: center;
            width: 120px;
            transition: var(--transition);
        }

        .floating-qr:hover {
            transform: translateY(-5px);
        }

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

        .floating-qr p {
            font-size: 0.75rem;
            margin-top: 5px;
            font-weight: bold;
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .service-grid, .grid-3col, .testimonials-grid, .glossary-grid {
                grid-template-columns: 1fr 1fr;
            }
            .case-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 80px;
                left: 0;
                width: 100%;
                background: #fff;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 15px;
            }
            .nav-menu.mobile-open {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero h1 {
                font-size: 2.4rem;
            }
            .about-layout, .solution-grid, .contact-layout {
                grid-template-columns: 1fr;
            }
            .service-grid, .grid-3col, .testimonials-grid, .glossary-grid, .case-grid, .article-list {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .match-form {
                grid-template-columns: 1fr;
            }
            .form-group-full {
                grid-column: span 1;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .copyright-bar {
                flex-direction: column;
                gap: 15px;
                text-align: center;
            }
        }