:root {
            --bg-primary: #FAF9F6;
            --text-primary: #111827;
            --text-secondary: #4B5563;
            --color-bright-blue: #2563EB;
            --color-bright-orange: #FF7A00;
            --color-bright-pink: #EC4899;
            --border-width: 3px;
            --shadow-offset: 6px;
            --container-max-width: 1200px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
        }

        body {
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.2s ease;
        }

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

        /* Neo-brutalism Style Blocks & Buttons */
        .brutal-card {
            background: #FFFFFF;
            border: var(--border-width) solid var(--text-primary);
            box-shadow: var(--shadow-offset) var(--shadow-offset) 0px var(--text-primary);
            padding: 30px;
            transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.2s ease;
        }
        .brutal-card:hover {
            transform: translate(-3px, -3px);
            box-shadow: calc(var(--shadow-offset) + 3px) calc(var(--shadow-offset) + 3px) 0px var(--text-primary);
        }

        .brutal-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            padding: 12px 28px;
            border: var(--border-width) solid var(--text-primary);
            box-shadow: 4px 4px 0px var(--text-primary);
            cursor: pointer;
            transition: all 0.15s ease;
            text-transform: uppercase;
        }
        .brutal-btn:hover {
            transform: translate(-2px, -2px);
            box-shadow: 6px 6px 0px var(--text-primary);
        }
        .brutal-btn:active {
            transform: translate(2px, 2px);
            box-shadow: 2px 2px 0px var(--text-primary);
        }

        .btn-blue { background-color: var(--color-bright-blue); color: #FFFFFF; }
        .btn-orange { background-color: var(--color-bright-orange); color: #FFFFFF; }
        .btn-pink { background-color: var(--color-bright-pink); color: #FFFFFF; }
        .btn-white { background-color: #FFFFFF; color: var(--text-primary); }

        /* Header Navigation */
        header {
            background-color: #FFFFFF;
            border-bottom: var(--border-width) solid var(--text-primary);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 80px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .ai-page-logo {
            max-height: 45px;
            width: auto;
        }
        .brand-name {
            font-size: 20px;
            font-weight: 900;
            color: var(--text-primary);
        }
        .nav-menu {
            display: flex;
            gap: 20px;
        }
        .nav-link {
            font-weight: bold;
            padding: 5px 10px;
            border-radius: 4px;
        }
        .nav-link:hover {
            background-color: var(--color-bright-blue);
            color: #FFFFFF;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--text-primary);
        }

        /* Hero Section (No Image) */
        .hero-sec {
            background: radial-gradient(circle at 10% 20%, rgba(236, 72, 153, 0.05) 0%, rgba(37, 99, 254, 0.05) 90%);
            border-bottom: var(--border-width) solid var(--text-primary);
            padding: 100px 0 80px 0;
            text-align: center;
        }
        .hero-title {
            font-size: 42px;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--text-primary);
        }
        .hero-title span {
            background: linear-gradient(90deg, var(--color-bright-blue), var(--color-bright-pink));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-desc {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 800px;
            margin: 0 auto 35px auto;
            font-weight: 500;
        }
        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }
        
        /* Stats Component */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }
        .stat-item {
            background-color: #FFFFFF;
            border: var(--border-width) solid var(--text-primary);
            box-shadow: 4px 4px 0px var(--text-primary);
            padding: 20px;
            text-align: center;
        }
        .stat-num {
            font-size: 32px;
            font-weight: 900;
            color: var(--color-bright-orange);
            margin-bottom: 5px;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: bold;
        }

        /* Section Layout */
        section {
            padding: 80px 0;
            border-bottom: var(--border-width) solid var(--text-primary);
        }
        .section-header {
            margin-bottom: 50px;
            text-align: center;
        }
        .section-tag {
            display: inline-block;
            background-color: var(--color-bright-pink);
            color: #FFFFFF;
            padding: 4px 12px;
            font-weight: 900;
            font-size: 12px;
            text-transform: uppercase;
            border: 2px solid var(--text-primary);
            margin-bottom: 15px;
            box-shadow: 2px 2px 0px var(--text-primary);
        }
        .section-title {
            font-size: 32px;
            font-weight: 900;
        }

        /* About Section */
        .about-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .about-text h3 {
            font-size: 24px;
            margin-bottom: 15px;
            font-weight: 900;
        }
        .about-text p {
            color: var(--text-secondary);
            margin-bottom: 20px;
        }
        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }
        .about-feat-item {
            border: 2px solid var(--text-primary);
            padding: 15px;
            background: #FFFFFF;
            font-weight: bold;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .about-feat-item::before {
            content: "✦";
            color: var(--color-bright-pink);
            font-size: 18px;
        }

        /* Services Capabilities */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }
        .service-card {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .service-card h3 {
            font-size: 20px;
            margin-bottom: 10px;
            font-weight: 900;
            color: var(--color-bright-blue);
        }
        .service-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 15px;
        }
        .service-features {
            list-style: none;
            font-size: 13px;
            margin-bottom: 20px;
        }
        .service-features li {
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: bold;
        }
        .service-features li::before {
            content: "✓";
            color: #10B981;
            font-weight: 900;
        }

        /* Model Tag Cloud */
        .tag-cloud-sec {
            background-color: #FFFFFF;
            padding: 40px;
            border: var(--border-width) solid var(--text-primary);
            box-shadow: var(--shadow-offset) var(--shadow-offset) 0px var(--text-primary);
            margin-top: 40px;
        }
        .tag-cloud-title {
            font-size: 18px;
            font-weight: 900;
            margin-bottom: 20px;
            text-align: center;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }
        .tag-item {
            background: var(--bg-primary);
            border: 2px solid var(--text-primary);
            padding: 6px 12px;
            font-size: 13px;
            font-weight: bold;
            transition: all 0.2s ease;
            box-shadow: 2px 2px 0px var(--text-primary);
        }
        .tag-item:hover {
            background: var(--color-bright-orange);
            color: #FFFFFF;
            transform: translateY(-2px);
        }

        /* Production (One-stop creation) & Materials */
        .production-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }
        .prod-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .prod-card {
            border: var(--border-width) solid var(--text-primary);
            background: #FFFFFF;
            padding: 20px;
            box-shadow: 4px 4px 0px var(--text-primary);
        }
        .prod-card h4 {
            font-size: 18px;
            font-weight: 900;
            margin-bottom: 10px;
            color: var(--color-bright-pink);
        }
        .prod-card p {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .materials-wrap {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .material-img-box {
            border: var(--border-width) solid var(--text-primary);
            box-shadow: var(--shadow-offset) var(--shadow-offset) 0px var(--text-primary);
            background-color: #FFF;
            padding: 10px;
        }
        .material-img-box img {
            width: 100%;
            height: auto;
            display: block;
        }
        .material-img-box span {
            display: block;
            margin-top: 8px;
            font-weight: bold;
            font-size: 12px;
            text-align: center;
        }

        /* Workflow Steps */
        .workflow-timeline {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }
        .wf-step {
            position: relative;
            background: #FFFFFF;
            border: var(--border-width) solid var(--text-primary);
            padding: 30px 20px 20px 20px;
            box-shadow: 4px 4px 0px var(--text-primary);
        }
        .wf-badge {
            position: absolute;
            top: -15px;
            left: 20px;
            background: var(--color-bright-orange);
            color: #FFFFFF;
            border: 2px solid var(--text-primary);
            padding: 2px 10px;
            font-weight: 900;
            font-size: 14px;
            box-shadow: 2px 2px 0px var(--text-primary);
        }
        .wf-step h4 {
            font-size: 16px;
            font-weight: 900;
            margin-bottom: 8px;
            margin-top: 5px;
        }
        .wf-step p {
            font-size: 13px;
            color: var(--text-secondary);
        }

        /* Solutions */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 25px;
        }
        .solution-card {
            border-left: 6px solid var(--color-bright-blue);
        }
        .solution-card h3 {
            font-size: 20px;
            font-weight: 900;
            margin-bottom: 10px;
        }

        /* Showcase Banner (Banners) */
        .banners-showcase {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }
        .banner-item {
            border: 3px solid var(--text-primary);
            box-shadow: 4px 4px 0px var(--text-primary);
            background: #FFFFFF;
            padding: 10px;
        }
        .banner-item img {
            width: 100%;
            height: auto;
            display: block;
        }

        /* Comparison Table */
        .comparison-table-wrap {
            overflow-x: auto;
            border: var(--border-width) solid var(--text-primary);
            box-shadow: var(--shadow-offset) var(--shadow-offset) 0px var(--text-primary);
            background: #FFFFFF;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 800px;
        }
        .comparison-table th, .comparison-table td {
            padding: 15px 20px;
            border: 1px solid #E5E7EB;
        }
        .comparison-table th {
            background-color: var(--text-primary);
            color: #FFFFFF;
            font-weight: bold;
        }
        .comparison-table tr:nth-child(even) {
            background-color: var(--bg-primary);
        }
        .comparison-table td strong {
            color: var(--color-bright-pink);
        }
        .rating-badge {
            background-color: var(--color-bright-orange);
            color: #FFFFFF;
            font-weight: 900;
            padding: 4px 8px;
            font-size: 14px;
            border: 2px solid var(--text-primary);
            display: inline-block;
        }

        /* Token Pricing */
        .pricing-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }
        .pricing-card {
            border-top: 8px solid var(--color-bright-pink);
        }
        .pricing-card .price {
            font-size: 28px;
            font-weight: 900;
            color: var(--color-bright-blue);
            margin: 15px 0;
        }
        .pricing-card .price span {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: normal;
        }

        /* Training & Certification */
        .training-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }
        .training-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .training-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border: 2px solid var(--text-primary);
            padding: 15px 20px;
            background: #FFFFFF;
            box-shadow: 3px 3px 0px var(--text-primary);
        }
        .training-item h4 {
            font-size: 16px;
            font-weight: 900;
        }
        .training-item span {
            background-color: var(--color-bright-blue);
            color: #FFFFFF;
            font-size: 12px;
            padding: 2px 8px;
            border: 1px solid var(--text-primary);
            font-weight: bold;
        }

        /* FAQ Section (Accordion) */
        .faq-wrap {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .faq-item {
            border: var(--border-width) solid var(--text-primary);
            background: #FFFFFF;
            box-shadow: 4px 4px 0px var(--text-primary);
        }
        .faq-question {
            padding: 20px;
            font-size: 16px;
            font-weight: 900;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
        }
        .faq-question::after {
            content: "+";
            font-size: 22px;
            font-weight: bold;
            color: var(--color-bright-pink);
            transition: transform 0.2s ease;
        }
        .faq-item.active .faq-question::after {
            content: "−";
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.2s ease-out;
            border-top: 0px solid var(--text-primary);
            background: var(--bg-primary);
        }
        .faq-answer-inner {
            padding: 20px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .faq-item.active .faq-answer {
            max-height: 200px;
            border-top: var(--border-width) solid var(--text-primary);
        }

        /* Customer Reviews */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 25px;
        }
        .review-card {
            border-radius: 0px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .review-text {
            font-style: italic;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 20px;
            position: relative;
        }
        .review-text::before {
            content: "“";
            font-size: 40px;
            color: var(--color-bright-pink);
            position: absolute;
            top: -20px;
            left: -10px;
            opacity: 0.3;
        }
        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid #E5E7EB;
            padding-top: 15px;
        }
        .review-avatar {
            width: 40px;
            height: 40px;
            background-color: var(--color-bright-blue);
            color: #FFFFFF;
            border: 2px solid var(--text-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 16px;
        }
        .review-info h5 {
            font-size: 14px;
            font-weight: 900;
        }
        .review-info span {
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* Articles & Resources */
        .articles-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }
        .article-card {
            border: var(--border-width) solid var(--text-primary);
            background: #FFFFFF;
            box-shadow: 4px 4px 0px var(--text-primary);
            padding: 20px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .article-card h4 {
            font-size: 16px;
            font-weight: 900;
            margin-bottom: 12px;
        }
        .article-card p {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 15px;
        }
        .article-link {
            font-weight: bold;
            font-size: 13px;
            color: var(--color-bright-blue);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .article-link:hover {
            color: var(--color-bright-orange);
        }

        /* Contact & Form Section */
        .contact-layout {
            display: grid;
            grid-template-columns: 0.92fr 1.08fr;
            gap: 40px;
        }
        .contact-info-card {
            background-color: var(--color-bright-blue);
            color: #FFFFFF;
            border: var(--border-width) solid var(--text-primary);
            box-shadow: var(--shadow-offset) var(--shadow-offset) 0px var(--text-primary);
            padding: 40px;
        }
        .contact-info-card h3 {
            font-size: 24px;
            font-weight: 900;
            margin-bottom: 20px;
        }
        .contact-methods {
            list-style: none;
            margin-bottom: 30px;
        }
        .contact-methods li {
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
        }
        .contact-qr {
            background: #FFFFFF;
            padding: 15px;
            border: 2px solid var(--text-primary);
            display: inline-block;
        }
        .contact-qr img {
            width: 130px;
            height: 130px;
            display: block;
        }
        .contact-qr span {
            display: block;
            text-align: center;
            color: var(--text-primary);
            font-size: 12px;
            font-weight: bold;
            margin-top: 8px;
        }

        /* Form */
        .form-wrap {
            background: #FFFFFF;
            border: var(--border-width) solid var(--text-primary);
            box-shadow: var(--shadow-offset) var(--shadow-offset) 0px var(--text-primary);
            padding: 40px;
        }
        .form-wrap h3 {
            font-size: 22px;
            font-weight: 900;
            margin-bottom: 20px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-weight: bold;
            margin-bottom: 6px;
            font-size: 14px;
        }
        .form-control {
            width: 100%;
            border: 2px solid var(--text-primary);
            padding: 10px 12px;
            font-size: 14px;
            outline: none;
        }
        .form-control:focus {
            border-color: var(--color-bright-blue);
            box-shadow: 2px 2px 0px var(--color-bright-blue);
        }

        /* Footer */
        footer {
            background-color: var(--text-primary);
            color: #FFFFFF;
            padding: 50px 0 30px 0;
            border-top: var(--border-width) solid var(--text-primary);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr 1.5fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-about h4 {
            font-size: 18px;
            font-weight: 900;
            margin-bottom: 15px;
            color: var(--color-bright-pink);
        }
        .footer-about p {
            font-size: 13px;
            color: #9CA3AF;
        }
        .footer-links h4 {
            font-size: 16px;
            font-weight: 900;
            margin-bottom: 15px;
            color: var(--color-bright-orange);
        }
        .footer-links-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px 20px;
        }
        .footer-links-grid a {
            font-size: 13px;
            color: #D1D5DB;
        }
        .footer-links-grid a:hover {
            color: #FFFFFF;
            text-decoration: underline;
        }
        .footer-qr-wrap {
            text-align: center;
        }
        .footer-qr-wrap img {
            width: 100px;
            height: 100px;
            border: 2px solid #FFFFFF;
            background: #FFFFFF;
        }
        .footer-qr-wrap span {
            display: block;
            font-size: 12px;
            margin-top: 5px;
            color: #9CA3AF;
        }
        .footer-bottom {
            border-top: 1px solid #374151;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 13px;
            color: #9CA3AF;
        }

        /* Floating customer service */
        .floating-service {
            position: fixed;
            right: 20px;
            bottom: 20px;
            z-index: 99;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .float-btn {
            width: 50px;
            height: 50px;
            border: 2px solid var(--text-primary);
            background: #FFFFFF;
            box-shadow: 2px 2px 0px var(--text-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            cursor: pointer;
            position: relative;
        }
        .float-btn:hover {
            transform: translate(-1px, -1px);
            box-shadow: 3px 3px 0px var(--text-primary);
        }
        .float-btn .qr-hover {
            display: none;
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #FFFFFF;
            border: 2px solid var(--text-primary);
            padding: 10px;
            box-shadow: 4px 4px 0px var(--text-primary);
            width: 150px;
            text-align: center;
        }
        .float-btn .qr-hover img {
            width: 100%;
            height: auto;
        }
        .float-btn:hover .qr-hover {
            display: block;
        }

        /* Media Queries */
        @media (max-width: 992px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 80px;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                border-bottom: var(--border-width) solid var(--text-primary);
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .about-layout, .production-layout, .training-layout, .contact-layout {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .hero-title {
                font-size: 32px;
            }
        }