/* CSS Reset & Variables */
        :root {
            --primary: #6c5ce7;
            --primary-laser: linear-gradient(135deg, #ff007f 0%, #7f00ff 50%, #00f0ff 100%);
            --bg-light: #fafbfe;
            --text-dark: #1e2029;
            --text-muted: #626880;
            --card-bg: rgba(255, 255, 255, 0.85);
            --border-color: rgba(127, 0, 255, 0.15);
            --shadow-laser: 0 8px 32px 0 rgba(108, 92, 231, 0.12);
            --radius: 12px;
            --container-width: 1200px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.6;
            overflow-x: hidden;
            background-image: 
                radial-gradient(at 10% 20%, rgba(255, 0, 127, 0.05) 0px, transparent 50%),
                radial-gradient(at 90% 10%, rgba(0, 240, 255, 0.05) 0px, transparent 50%),
                radial-gradient(at 50% 80%, rgba(127, 0, 255, 0.05) 0px, transparent 50%);
            background-attachment: fixed;
        }

        a {
            text-decoration: none;
            color: var(--primary);
            transition: all 0.3s ease;
        }

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

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

        /* Header Navigation */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(12px);
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            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;
            color: var(--text-dark);
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 6px;
            transition: all 0.3s;
        }

        .nav-link:hover {
            background: rgba(108, 92, 231, 0.08);
            color: var(--primary);
        }

        .nav-btn {
            background: var(--primary-laser);
            color: #fff;
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
            border: none;
            box-shadow: 0 4px 15px rgba(127, 0, 255, 0.3);
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(127, 0, 255, 0.4);
        }

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

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

        /* Section Layouts */
        .section {
            padding: 90px 0;
            position: relative;
        }

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

        .section-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            background: var(--primary-laser);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: -0.5px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 15px auto 0;
        }

        /* 1. Hero Section (No Image Allowed) */
        .hero {
            padding-top: 150px;
            padding-bottom: 100px;
            background: radial-gradient(circle at top right, rgba(0,240,255,0.08), transparent 40%),
                        radial-gradient(circle at bottom left, rgba(255,0,127,0.08), transparent 40%);
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.9);
            border: 1px solid var(--border-color);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-dark);
            box-shadow: var(--shadow-laser);
            margin-bottom: 25px;
        }

        .hero-badge span {
            width: 8px;
            height: 8px;
            background: #00f0ff;
            border-radius: 50%;
            animation: pulse 1.5s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(0.9); opacity: 0.6; }
            50% { transform: scale(1.2); opacity: 1; }
            100% { transform: scale(0.9); opacity: 0.6; }
        }

        .hero-title {
            font-size: 42px;
            line-height: 1.25;
            font-weight: 900;
            color: var(--text-dark);
            max-width: 800px;
            margin: 0 auto 20px;
        }

        .hero-title span {
            background: var(--primary-laser);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 35px;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
        }

        .btn-primary {
            background: var(--primary-laser);
            color: #fff;
            padding: 14px 30px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 16px;
            box-shadow: 0 8px 25px rgba(127, 0, 255, 0.3);
            transition: all 0.3s;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(127, 0, 255, 0.4);
        }

        .btn-secondary {
            background: #fff;
            color: var(--text-dark);
            padding: 14px 30px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 16px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
            transition: all 0.3s;
        }

        .btn-secondary:hover {
            background: var(--bg-light);
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
        }

        /* 2. Data Indicators */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: -50px;
            position: relative;
            z-index: 10;
        }

        .data-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 25px;
            text-align: center;
            box-shadow: var(--shadow-laser);
            backdrop-filter: blur(10px);
            transition: transform 0.3s;
        }

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

        .data-val {
            font-size: 36px;
            font-weight: 800;
            background: var(--primary-laser);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 5px;
        }

        .data-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 3. About Us */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 24px;
            margin-bottom: 15px;
            color: var(--text-dark);
        }

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

        .about-features {
            list-style: none;
        }

        .about-features li {
            position: relative;
            padding-left: 25px;
            margin-bottom: 12px;
            font-weight: 500;
        }

        .about-features li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: #00f0ff;
            font-weight: bold;
        }

        /* 4. AIGC Models Carousel/Cloud style (Service System) */
        .model-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 900px;
            margin: 0 auto;
        }

        .model-tag {
            background: #fff;
            border: 1px solid var(--border-color);
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            box-shadow: 0 2px 10px rgba(0,0,0,0.02);
            transition: all 0.2s;
        }

        .model-tag.active {
            background: var(--primary-laser);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 15px rgba(127, 0, 255, 0.2);
        }

        .model-tag:hover {
            transform: scale(1.05);
        }

        /* 5. Service Capability Cards */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .service-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 30px;
            box-shadow: var(--shadow-laser);
            transition: all 0.3s;
        }

        .service-card:hover {
            transform: translateY(-5px);
            border-color: #00f0ff;
        }

        .service-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            background: var(--primary-laser);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 22px;
            margin-bottom: 20px;
            box-shadow: 0 4px 12px rgba(127, 0, 255, 0.2);
        }

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

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

        /* 6. AIGC Production Flow (Step layout) */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .flow-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 25px;
            position: relative;
        }

        .flow-num {
            position: absolute;
            top: -20px;
            right: 20px;
            font-size: 48px;
            font-weight: 900;
            background: var(--primary-laser);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            opacity: 0.15;
        }

        .flow-card h3 {
            font-size: 18px;
            margin-bottom: 12px;
            margin-top: 10px;
        }

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

        /* 7. Comparison Section */
        .compare-box {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 40px;
            box-shadow: var(--shadow-laser);
            max-width: 900px;
            margin: 0 auto;
        }

        .compare-score {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 25px;
            margin-bottom: 25px;
        }

        .score-num {
            font-size: 48px;
            font-weight: 900;
            color: var(--primary);
        }

        .score-num span {
            font-size: 20px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .score-stars {
            color: #ffd700;
            font-size: 24px;
        }

        .compare-table-wrapper {
            overflow-x: auto;
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }

        .compare-table th, .compare-table td {
            padding: 15px;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
        }

        .compare-table th {
            font-weight: 700;
            color: var(--text-dark);
        }

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

        /* 8. Pricing & Token Reference */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .price-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 30px;
            text-align: center;
            position: relative;
            transition: all 0.3s;
        }

        .price-card.featured {
            border: 2px solid var(--primary);
            transform: scale(1.03);
            box-shadow: var(--shadow-laser);
        }

        .price-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--primary-laser);
            color: #fff;
            font-size: 11px;
            padding: 4px 10px;
            border-radius: 10px;
            font-weight: bold;
        }

        .price-val {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-dark);
            margin: 20px 0;
        }

        .price-val span {
            font-size: 14px;
            color: var(--text-muted);
        }

        .price-list {
            list-style: none;
            margin: 20px 0 30px;
            text-align: left;
            font-size: 13px;
        }

        .price-list li {
            margin-bottom: 10px;
            color: var(--text-muted);
        }

        /* 9. Case Center */
        .case-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 25px;
        }

        .case-left {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .case-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
        }

        .case-img-wrap {
            position: relative;
            background: #eaeaea;
            overflow: hidden;
            aspect-ratio: 16/10;
        }

        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .case-content {
            padding: 20px;
        }

        .case-content h4 {
            font-size: 16px;
            margin-bottom: 8px;
        }

        .case-content p {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 10. Training Program */
        .train-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }

        .train-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow-laser);
            transition: all 0.3s;
        }

        .train-card:hover {
            transform: translateY(-5px);
            border-color: #00f0ff;
        }

        .train-card h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-dark);
        }

        .train-card p {
            font-size: 11px;
            color: var(--text-muted);
        }

        /* 11. FAQ Collapse */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-q {
            padding: 18px 25px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-q::after {
            content: "+";
            font-size: 20px;
            color: var(--primary);
            transition: transform 0.3s;
        }

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

        .faq-a {
            padding: 0 25px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out, padding 0.3s ease-out;
            font-size: 14px;
            color: var(--text-muted);
        }

        .faq-item.active .faq-a {
            padding: 0 25px 18px;
            max-height: 200px;
        }

        /* 12. Troubleshooting & Glossary */
        .info-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .info-box {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 30px;
        }

        .info-box h3 {
            font-size: 18px;
            margin-bottom: 20px;
            border-left: 4px solid var(--primary);
            padding-left: 10px;
        }

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

        .trouble-list li {
            margin-bottom: 15px;
            font-size: 13px;
        }

        .trouble-list strong {
            display: block;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .trouble-list span {
            color: var(--text-muted);
        }

        /* 13. Testimonials */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .comment-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 25px;
            box-shadow: var(--shadow-laser);
        }

        .comment-user {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 15px;
        }

        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-laser);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: bold;
            font-size: 14px;
        }

        .user-meta h4 {
            font-size: 14px;
        }

        .user-meta span {
            font-size: 11px;
            color: var(--text-muted);
        }

        .comment-text {
            font-size: 13px;
            color: var(--text-muted);
            font-style: italic;
        }

        /* 14. Smart matching & Form */
        .match-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 40px;
            box-shadow: var(--shadow-laser);
        }

        .match-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 5px;
        }

        .form-group label {
            font-size: 12px;
            font-weight: 700;
            color: var(--text-dark);
        }

        .form-control {
            border: 1px solid var(--border-color);
            border-radius: 6px;
            padding: 10px 14px;
            font-size: 14px;
            outline: none;
            background: #fff;
            transition: border 0.3s;
        }

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

        /* 15. Article list */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .article-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 20px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .article-card h4 {
            font-size: 15px;
            margin-bottom: 12px;
        }

        .article-card a {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            align-self: flex-start;
        }

        /* 16. Contact section & Footer */
        .contact-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
            text-align: center;
        }

        .contact-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 25px;
        }

        .contact-card img {
            width: 120px;
            height: 120px;
            margin: 15px auto;
            border: 1px solid var(--border-color);
        }

        /* Footer */
        .footer {
            background: #1a1f2c;
            color: #fff;
            padding: 60px 0 20px;
            font-size: 13px;
        }

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

        .footer-logo-desc p {
            color: #a0aec0;
            margin-top: 15px;
            line-height: 1.8;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 20px;
            color: #fff;
        }

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

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

        .footer-links a {
            color: #a0aec0;
        }

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

        .friend-links {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            margin-bottom: 20px;
            text-align: center;
        }

        .friend-links a {
            color: #a0aec0;
            margin: 0 10px;
            display: inline-block;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            text-align: center;
            color: #718096;
        }

        /* Float elements */
        .float-panel {
            position: fixed;
            right: 20px;
            bottom: 20px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #fff;
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            border: 1px solid var(--border-color);
            transition: all 0.3s;
            position: relative;
        }

        .float-btn:hover {
            transform: scale(1.1);
        }

        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 10px;
            box-shadow: var(--shadow-laser);
            display: none;
            text-align: center;
            width: 150px;
        }

        .qr-popover img {
            width: 130px;
            height: 130px;
        }

        .qr-popover p {
            font-size: 11px;
            margin-top: 5px;
            color: var(--text-dark);
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                margin-top: 20px;
            }
            .services-grid, .price-grid, .comments-grid, .article-grid, .contact-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-grid, .train-grid, .match-wrap, .about-grid, .info-split {
                grid-template-columns: 1fr;
            }
            .flow-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-toggle {
                display: flex;
            }
            .hero-title {
                font-size: 30px;
            }
            .services-grid, .price-grid, .comments-grid, .article-grid, .contact-grid, .flow-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }