:root {
            --primary: #4f46e5;
            --primary-gradient: linear-gradient(135deg, #4f46e5 0%, #ec4899 100%);
            --secondary-gradient: linear-gradient(135deg, #3b82f6 0%, #10b981 100%);
            --accent: #f43f5e;
            --dark: #0f172a;
            --dark-sub: #475569;
            --light: #f8fafc;
            --white: #ffffff;
            --border: #e2e8f0;
            --radius-lg: 16px;
            --radius-md: 8px;
            --shadow: 0 10px 30px -10px rgba(79, 70, 229, 0.1);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            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(--light);
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
        }

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

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

        .nav-menu {
            display: flex;
            gap: 20px;
            list-style: none;
        }

        .nav-menu a {
            font-size: 14px;
            font-weight: 500;
            color: var(--dark-sub);
            padding: 6px 12px;
            border-radius: var(--radius-md);
        }

        .nav-menu a:hover, .nav-menu a.active {
            color: var(--primary);
            background: rgba(79, 70, 229, 0.08);
        }

        .nav-btn {
            background: var(--primary-gradient);
            color: var(--white);
            padding: 10px 20px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 14px;
            box-shadow: 0 4px 15px rgba(236, 72, 153, 0.3);
        }

        .nav-btn:hover {
            opacity: 0.9;
            transform: translateY(-2px);
            color: var(--white);
        }

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

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background: var(--dark);
            border-radius: 3px;
            transition: var(--transition);
        }

        /* Hero 首屏 (绝对无图) */
        .hero-section {
            padding: 160px 0 100px;
            background: radial-gradient(circle at 90% 10%, rgba(236, 72, 153, 0.1) 0%, rgba(79, 70, 229, 0.05) 50%, rgba(255, 255, 255, 0) 100%), var(--white);
            text-align: center;
            position: relative;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: radial-gradient(rgba(79, 70, 229, 0.15) 1px, transparent 0);
            background-size: 24px 24px;
            pointer-events: none;
            opacity: 0.7;
        }

        .hero-content {
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            background: rgba(79, 70, 229, 0.08);
            border: 1px solid rgba(79, 70, 229, 0.2);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .hero-title {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--dark);
            margin-bottom: 24px;
        }

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

        .hero-desc {
            font-size: 18px;
            color: var(--dark-sub);
            margin-bottom: 40px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
        }

        .btn-primary {
            background: var(--primary-gradient);
            color: var(--white);
            box-shadow: 0 10px 25px rgba(79, 70, 229, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(79, 70, 229, 0.45);
        }

        .btn-secondary {
            background: var(--white);
            border: 2px solid var(--border);
            color: var(--dark);
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        /* 基础样式单元 */
        .section-header {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 60px;
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 16px;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .section-header p {
            color: var(--dark-sub);
            font-size: 16px;
        }

        section {
            padding: 80px 0;
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
        }

        .white-bg {
            background-color: var(--white);
        }

        /* 数据指标 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-top: -50px;
            position: relative;
            z-index: 10;
        }

        .stat-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 30px 20px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid rgba(255, 255, 255, 0.8);
            transition: var(--transition);
        }

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

        .stat-num {
            font-size: 36px;
            font-weight: 800;
            background: var(--secondary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--dark-sub);
            font-weight: 500;
        }

        /* 关于我们与平台介绍 */
        .intro-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .intro-text h3 {
            font-size: 28px;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .intro-features {
            margin-top: 30px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .intro-feat-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .intro-feat-item span {
            background: rgba(16, 185, 129, 0.1);
            color: #10b981;
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: bold;
            font-size: 14px;
        }

        /* 全平台AIGC服务 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 35px 25px;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-8px);
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }

        .service-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            background: rgba(79, 70, 229, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
            font-weight: 600;
        }

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

        /* 支持模型标签云 */
        .model-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-top: 40px;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }

        .model-tag {
            background: var(--white);
            border: 1px solid var(--border);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }

        .model-tag:hover {
            background: var(--primary-gradient);
            color: var(--white);
            border-color: transparent;
            transform: scale(1.05);
        }

        /* 一站式AIGC制作展示区 (可出现图片) */
        .showcase-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }

        .showcase-images {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
        }

        .showcase-img-container {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 4px solid var(--white);
        }

        .showcase-img-container img {
            width: 100%;
            height: auto;
            object-fit: cover;
            transition: var(--transition);
        }

        .showcase-img-container img:hover {
            transform: scale(1.03);
        }

        .showcase-details h3 {
            font-size: 24px;
            margin-bottom: 15px;
            font-weight: 700;
        }

        .showcase-list {
            list-style: none;
            margin-top: 20px;
        }

        .showcase-list li {
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
            display: flex;
            justify-content: space-between;
            font-size: 15px;
        }

        .showcase-list li strong {
            color: var(--primary);
        }

        /* 解决方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .solution-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 30px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .solution-card:hover {
            box-shadow: var(--shadow);
            border-color: var(--primary);
        }

        .solution-card h4 {
            font-size: 18px;
            margin-bottom: 10px;
            color: var(--dark);
        }

        .solution-card p {
            font-size: 14px;
            color: var(--dark-sub);
        }

        /* 服务网络与流程 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }

        .timeline-item {
            display: flex;
            margin-bottom: 40px;
            position: relative;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: 20px;
            top: 30px;
            bottom: -30px;
            width: 2px;
            background: var(--border);
        }

        .timeline-item:last-child::before {
            display: none;
        }

        .timeline-number {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            z-index: 2;
            flex-shrink: 0;
            margin-right: 20px;
        }

        .timeline-content {
            background: var(--white);
            padding: 20px 25px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            width: 100%;
        }

        .timeline-content h4 {
            font-size: 18px;
            margin-bottom: 8px;
        }

        .timeline-content p {
            font-size: 14px;
            color: var(--dark-sub);
        }

        /* 对比评测表格 */
        .comparison-wrapper {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            overflow-x: auto;
        }

        .comparison-header-info {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            border-bottom: 2px solid var(--border);
            padding-bottom: 20px;
            flex-wrap: wrap;
            gap: 20px;
        }

        .recommend-score {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .score-badge {
            background: var(--accent);
            color: var(--white);
            font-size: 24px;
            font-weight: 800;
            padding: 5px 15px;
            border-radius: var(--radius-md);
        }

        .stars-container {
            color: #f59e0b;
            font-size: 20px;
        }

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

        .comparison-table th, .comparison-table td {
            padding: 16px;
            border-bottom: 1px solid var(--border);
        }

        .comparison-table th {
            font-weight: 700;
            background: var(--light);
        }

        .comparison-table tr:hover {
            background: rgba(79, 70, 229, 0.02);
        }

        .advantage-tag {
            background: rgba(16, 185, 129, 0.1);
            color: #10b981;
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
        }

        /* 价格与Token比价 */
        .price-section {
            background: var(--light);
        }

        .price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .price-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 2px solid var(--border);
            padding: 40px 30px;
            text-align: center;
            position: relative;
            transition: var(--transition);
        }

        .price-card.featured {
            border-color: var(--primary);
            transform: scale(1.05);
        }

        .price-card.featured::before {
            content: '推荐';
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--primary-gradient);
            color: var(--white);
            padding: 4px 12px;
            font-size: 12px;
            border-radius: 20px;
            font-weight: 700;
        }

        .price-card h3 {
            font-size: 22px;
            margin-bottom: 15px;
        }

        .price-value {
            font-size: 36px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 25px;
        }

        .price-value span {
            font-size: 14px;
            font-weight: 400;
            color: var(--dark-sub);
        }

        .price-features {
            list-style: none;
            margin-bottom: 35px;
            text-align: left;
        }

        .price-features li {
            padding: 10px 0;
            font-size: 14px;
            border-bottom: 1px solid var(--light);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .price-features li::before {
            content: '✓';
            color: #10b981;
            font-weight: bold;
        }

        /* 职业技术培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }

        .training-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px 15px;
            text-align: center;
            transition: var(--transition);
        }

        .training-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
            transform: translateY(-3px);
        }

        .training-card h5 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--primary);
        }

        .training-card p {
            font-size: 12px;
            color: var(--dark-sub);
        }

        /* FAQ折叠面板 */
        .faq-wrapper {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 15px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 20px;
            font-size: 16px;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
        }

        .faq-question::after {
            content: '+';
            font-size: 22px;
            transition: var(--transition);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: var(--light);
        }

        .faq-answer-content {
            padding: 20px;
            font-size: 14px;
            color: var(--dark-sub);
            border-top: 1px solid var(--border);
        }

        .faq-item.active {
            border-color: var(--primary);
        }

        .faq-item.active .faq-question::after {
            content: '-';
            transform: rotate(180deg);
        }

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

        /* 客户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 30px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
        }

        .user-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--primary-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-weight: bold;
        }

        .user-info h5 {
            font-size: 16px;
            font-weight: 700;
        }

        .user-info p {
            font-size: 12px;
            color: var(--dark-sub);
        }

        .review-content {
            font-size: 14px;
            color: var(--dark-sub);
            font-style: italic;
        }

        /* 资讯与知识库 */
        .articles-list {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
            list-style: none;
            margin-top: 30px;
        }

        .articles-list li a {
            display: block;
            background: var(--white);
            border: 1px solid var(--border);
            padding: 15px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 500;
            color: var(--dark-sub);
            height: 100%;
        }

        .articles-list li a:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* 联系我们与表单 */
        .contact-layout {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 50px;
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }

        .contact-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }

        .contact-item-icon {
            font-size: 24px;
            color: var(--primary);
        }

        .qr-codes {
            display: flex;
            gap: 20px;
            margin-top: 20px;
            align-items: center;
        }

        .qr-item {
            text-align: center;
            font-size: 12px;
            color: var(--dark-sub);
        }

        .qr-item img {
            width: 100px;
            height: 100px;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 8px;
        }

        .contact-form {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-size: 14px;
            font-weight: 600;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
        }

        select.form-control {
            height: 46px;
        }

        /* 侧边悬浮 */
        .floating-action {
            position: fixed;
            right: 25px;
            bottom: 25px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--white);
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid var(--border);
        }

        .float-btn:hover {
            background: var(--primary-gradient);
            color: var(--white);
            border-color: transparent;
            transform: scale(1.05);
        }

        .qr-popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: var(--white);
            padding: 15px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            display: none;
            text-align: center;
            width: 150px;
        }

        .qr-popover img {
            width: 120px;
            height: 120px;
            margin-bottom: 5px;
        }

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

        /* 友情链接与底部 */
        .friend-links {
            padding: 30px 0;
            background: var(--white);
            border-top: 1px solid var(--border);
            text-align: center;
        }

        .friend-links-title {
            font-size: 14px;
            color: var(--dark-sub);
            margin-bottom: 15px;
            font-weight: 600;
        }

        .friend-links-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
        }

        .friend-links-list a {
            font-size: 13px;
            color: var(--dark-sub);
        }

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

        footer {
            background: var(--dark);
            color: #94a3b8;
            padding: 50px 0 30px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h4 {
            color: var(--white);
            font-size: 20px;
            margin-bottom: 15px;
        }

        .footer-brand p {
            margin-bottom: 20px;
        }

        .footer-links h4 {
            color: var(--white);
            font-size: 16px;
            margin-bottom: 15px;
        }

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

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

        .footer-links ul a:hover {
            color: var(--white);
        }

        .footer-info h4 {
            color: var(--white);
            font-size: 16px;
            margin-bottom: 15px;
        }

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .services-grid, .solutions-grid, .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                margin-top: 0;
                padding-top: 40px;
            }
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 32px;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }
            .nav-menu.show {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .intro-layout, .showcase-layout, .contact-layout, .footer-grid {
                grid-template-columns: 1fr;
            }
            .services-grid, .solutions-grid, .reviews-grid, .training-grid {
                grid-template-columns: 1fr;
            }
            .price-grid {
                grid-template-columns: 1fr;
            }
            .price-card.featured {
                transform: none;
            }
            .articles-list {
                grid-template-columns: 1fr;
            }
            .floating-action {
                right: 15px;
                bottom: 15px;
            }
        }