/* Base Setup & Colors - Holographic Accent on Light Theme */
        :root {
            --bg-primary: #fafbfd;
            --bg-secondary: #ffffff;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-muted: #64748b;
            --accent-glow: linear-gradient(135deg, #a78bfa, #f472b6, #38bdf8);
            --border-color: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 20px -2px rgba(148, 163, 184, 0.12);
            --shadow-lg: 0 10px 30px -5px rgba(148, 163, 184, 0.2);
            --radius-md: 12px;
            --radius-lg: 20px;
            --max-width: 1200px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        /* Typography */
        h1, h2, h3, h4 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-primary);
        }

        h2 {
            font-size: 2rem;
            margin-bottom: 12px;
            text-align: center;
        }

        .section-desc {
            text-align: center;
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0 auto 48px;
            font-size: 1.1rem;
        }

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

        /* Buttons & Badges with Holographic Glow */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            border: none;
        }

        .btn-primary {
            background: var(--accent-glow);
            color: #ffffff;
            box-shadow: 0 4px 15px rgba(244, 114, 182, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(244, 114, 182, 0.5);
        }

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

        .btn-secondary:hover {
            border-color: #a78bfa;
            transform: translateY(-2px);
        }

        .badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            background: rgba(167, 139, 250, 0.1);
            color: #7c3aed;
            margin-bottom: 16px;
            border: 1px solid rgba(167, 139, 250, 0.2);
        }

        /* Header Navigation */
        .header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(250, 251, 253, 0.8);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
        }

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

        .logo-wrapper {
            display: flex;
            align-items: center;
        }

        .ai-page-logo {
            height: 38px;
            width: auto;
        }

        .nav-list {
            display: flex;
            list-style: none;
            gap: 24px;
        }

        .nav-list a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
        }

        .nav-list a:hover {
            color: #7c3aed;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

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

        .menu-toggle span {
            width: 24px;
            height: 2px;
            background-color: var(--text-primary);
            transition: 0.3s;
        }

        /* Sections base */
        section {
            padding: 80px 0;
        }

        /* Hero (1. 首页) - NO IMAGES ALLOWED */
        .hero-section {
            padding: 120px 0 100px;
            position: relative;
            overflow: hidden;
            background: radial-gradient(circle at 10% 20%, rgba(167, 139, 250, 0.08) 0%, transparent 40%),
                        radial-gradient(circle at 90% 80%, rgba(56, 189, 248, 0.08) 0%, transparent 40%);
        }

        .hero-inner {
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .hero-h1 {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 24px;
            background: linear-gradient(135deg, #1e293b, #4f46e5);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: -0.02em;
        }

        .hero-p {
            font-size: 1.25rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

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

        /* Data Cards (2. 数据指标卡片) */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .data-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: var(--radius-md);
            text-align: center;
            box-shadow: var(--shadow-sm);
        }

        .data-num {
            font-size: 2.25rem;
            font-weight: 800;
            background: var(--accent-glow);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
        }

        .data-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* About Us (关于我们) */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.75rem;
            margin-bottom: 16px;
        }

        .about-features {
            margin-top: 24px;
            list-style: none;
        }

        .about-features li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 12px;
            color: var(--text-secondary);
        }

        .about-features li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: #7c3aed;
            font-weight: bold;
        }

        /* Services Grid (3. 全平台AIGC服务 & 4. 一站式AIGC制作) */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--accent-glow);
            opacity: 0;
            transition: opacity 0.3s;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(167, 139, 250, 0.4);
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-icon {
            font-size: 2rem;
            margin-bottom: 20px;
            width: 60px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(167, 139, 250, 0.1);
        }

        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
        }

        .service-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            flex-grow: 1;
        }

        .model-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 16px;
        }

        .model-tag {
            font-size: 0.75rem;
            padding: 3px 8px;
            background: #f1f5f9;
            border-radius: 4px;
            color: var(--text-muted);
        }

        /* Solutions (5. 全行业解决方案 & 6. 全国服务网络) */
        .solutions-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .solution-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: var(--radius-md);
        }

        .solution-item h3 {
            margin-bottom: 12px;
            color: #7c3aed;
        }

        /* Process (7. 标准化AIGC流程) */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .process-step {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: var(--radius-md);
            position: relative;
            text-align: center;
        }

        .step-num {
            width: 32px;
            height: 32px;
            background: var(--accent-glow);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            margin: 0 auto 16px;
        }

        /* Comparison (8. 技术标准 & 10. 对比评测) */
        .table-wrapper {
            overflow-x: auto;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            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: #f8fafc;
            color: var(--text-primary);
            font-weight: 600;
        }

        tr:last-child td {
            border-bottom: none;
        }

        .highlight-col {
            background-color: rgba(167, 139, 250, 0.04);
            font-weight: 600;
        }

        .badge-star {
            color: #eab308;
            font-size: 1.1rem;
        }

        /* Token Price (12. Token比价参考) */
        .token-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 24px;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* Training (13. 职业技术培训 & 14. 人工智能培训) */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .training-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 30px;
            text-align: center;
        }

        .training-title {
            font-size: 1.25rem;
            margin: 16px 0;
            color: var(--text-primary);
        }

        .training-card ul {
            list-style: none;
            text-align: left;
            margin: 20px 0;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .training-card ul li {
            margin-bottom: 8px;
            padding-left: 16px;
            position: relative;
        }

        .training-card ul li::before {
            content: "•";
            color: #7c3aed;
            position: absolute;
            left: 0;
        }

        /* Cases (9. 客户案例中心) */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .case-img-container {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: #f1f5f9;
        }

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

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

        .case-info {
            padding: 24px;
        }

        .case-info h4 {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }

        .case-info p {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        /* Reviews (6条用户评论) */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .review-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }

        .review-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            font-style: italic;
            margin-bottom: 16px;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .user-avatar-placeholder {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent-glow);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 0.9rem;
        }

        .user-info h5 {
            font-size: 0.95rem;
        }

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

        /* Match Form & Contact (11. 智能需求匹配 + 20. 联系我们 + 21. 加盟代理) */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
        }

        .contact-info-panel {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 40px;
        }

        .contact-info-panel h3 {
            font-size: 1.75rem;
            margin-bottom: 24px;
        }

        .contact-method {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 24px;
        }

        .method-icon {
            font-size: 1.25rem;
            color: #7c3aed;
            background: rgba(167, 139, 250, 0.1);
            padding: 8px;
            border-radius: 8px;
        }

        .qrcode-box {
            margin-top: 24px;
            text-align: center;
            border: 1px dashed var(--border-color);
            padding: 16px;
            border-radius: var(--radius-md);
        }

        .qrcode-box img {
            width: 140px;
            height: 140px;
            margin-bottom: 8px;
        }

        /* Form styling */
        .form-panel {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-md);
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            font-size: 0.95rem;
        }

        .form-input, .form-select, .form-textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background-color: #f8fafc;
            color: var(--text-primary);
            font-size: 1rem;
            transition: border-color 0.3s;
        }

        .form-input:focus, .form-select:focus, .form-textarea:focus {
            border-color: #7c3aed;
            outline: none;
        }

        /* FAQ Accordion (15-18. 常见问题自助排查 & 百科) */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

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

        .faq-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            padding: 8px 0;
        }

        .faq-question {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-primary);
        }

        .faq-icon {
            font-size: 1.2rem;
            transition: transform 0.3s;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding-top: 12px;
        }

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

        /* Articles & Blogs (19. 行业资讯) */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .article-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: var(--radius-md);
            transition: border-color 0.3s;
        }

        .article-card:hover {
            border-color: #a78bfa;
        }

        .article-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .article-title {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

        .article-link {
            color: #7c3aed;
            font-size: 0.9rem;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* Float Widget */
        .floating-widget {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .widget-btn {
            width: 50px;
            height: 50px;
            background: white;
            border-radius: 50%;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            cursor: pointer;
            position: relative;
        }

        .widget-btn:hover .tooltip-qr {
            opacity: 1;
            visibility: visible;
        }

        .tooltip-qr {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: white;
            border: 1px solid var(--border-color);
            padding: 12px;
            border-radius: 8px;
            box-shadow: var(--shadow-md);
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
            text-align: center;
            width: 140px;
        }

        .tooltip-qr img {
            width: 110px;
            height: 110px;
        }

        /* Footer */
        .footer {
            background-color: #0f172a;
            color: #f8fafc;
            padding: 60px 0 30px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 40px;
        }

        .footer-brand h4 {
            color: white;
            font-size: 1.25rem;
            margin-bottom: 16px;
        }

        .footer-brand p {
            color: #94a3b8;
            margin-bottom: 16px;
        }

        .footer-links h5 {
            color: white;
            font-size: 1rem;
            margin-bottom: 16px;
        }

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

        .footer-links ul li {
            margin-bottom: 8px;
        }

        .footer-links ul li a {
            color: #94a3b8;
        }

        .footer-links ul li a:hover {
            color: white;
        }

        .friend-links {
            border-top: 1px solid #1e293b;
            padding-top: 24px;
            margin-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .friend-links a {
            color: #64748b;
        }

        .friend-links a:hover {
            color: #94a3b8;
        }

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            color: #64748b;
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .grid-3, .training-grid, .case-grid, .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            h2 { font-size: 1.75rem; }
            .nav-list {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--bg-secondary);
                padding: 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-md);
            }
            .nav-list.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero-h1 { font-size: 2.25rem; }
            .about-grid, .solutions-grid, .contact-grid, .footer-grid {
                grid-template-columns: 1fr;
            }
            .process-flow {
                grid-template-columns: 1fr;
            }
            .grid-3, .training-grid, .case-grid, .reviews-grid, .articles-grid {
                grid-template-columns: 1fr;
            }
        }