:root {
            --primary: #7c3aed;
            --primary-light: #a78bfa;
            --secondary: #db2777;
            --accent: #0d9488;
            --text-dark: #0f172a;
            --text-light: #ffffff;
            --text-gray: #475569;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --bg-card: #f1f5f9;
            --neon-border: linear-gradient(135deg, #7c3aed 0%, #db2777 100%);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            background-color: var(--bg-light);
            color: var(--text-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 {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
        }

        .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;
            object-fit: contain;
        }

        .brand-name {
            font-size: 20px;
            font-weight: 800;
            background: var(--neon-border);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        nav {
            display: flex;
            gap: 20px;
            align-items: center;
        }

        nav a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-gray);
        }

        nav a:hover {
            color: var(--primary);
        }

        .nav-btn {
            background: var(--neon-border);
            color: var(--text-light);
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(124, 58, 237, 0.4);
        }

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

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

        /* 移动端菜单展开状态 */
        @media (max-width: 992px) {
            .menu-toggle {
                display: flex;
            }
            nav {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: var(--bg-white);
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);
                border-top: 1px solid var(--border-color);
            }
            nav.active {
                display: flex;
            }
        }

        /* 通用区块样式 */
        section {
            padding: 90px 0;
        }

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

        .section-title h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: var(--neon-border);
            border-radius: 2px;
        }

        .section-title p {
            font-size: 16px;
            color: var(--text-gray);
        }

        /* Hero 首屏 (无图) */
        .hero {
            padding-top: 160px;
            padding-bottom: 100px;
            background: radial-gradient(circle at 10% 20%, rgba(124, 58, 237, 0.05) 0%, rgba(219, 39, 119, 0.05) 90%);
            position: relative;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            background: rgba(124, 58, 237, 0.1);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 25px;
            border: 1px solid rgba(124, 58, 237, 0.2);
        }

        .hero h1 {
            font-size: 42px;
            font-weight: 900;
            line-height: 1.2;
            color: var(--text-dark);
            margin-bottom: 25px;
            letter-spacing: -1px;
        }

        .hero h1 span {
            background: var(--neon-border);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--text-gray);
            max-width: 800px;
            margin: 0 auto 40px;
        }

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

        .btn-primary {
            background: var(--neon-border);
            color: var(--text-light);
            padding: 14px 35px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 700;
            box-shadow: 0 8px 25px rgba(124, 58, 237, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(124, 58, 237, 0.5);
        }

        .btn-secondary {
            background: var(--bg-white);
            color: var(--text-dark);
            padding: 14px 35px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 700;
            border: 2px solid var(--border-color);
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-3px);
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 25px;
            margin-top: 60px;
        }

        .stat-card {
            background-color: var(--bg-white);
            padding: 30px 20px;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
            border: 1px solid rgba(226, 232, 240, 0.8);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(124, 58, 237, 0.1);
        }

        .stat-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
        }

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

        /* 关于我们 & 平台介绍 */
        .about {
            background-color: var(--bg-white);
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        @media (max-width: 768px) {
            .about-grid {
                grid-template-columns: 1fr;
            }
        }

        .about-content h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 20px;
        }

        .about-content p {
            color: var(--text-gray);
            margin-bottom: 20px;
            font-size: 16px;
        }

        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .about-feature-item {
            background-color: var(--bg-light);
            padding: 20px;
            border-radius: 12px;
            border-left: 4px solid var(--primary);
        }

        .about-feature-item h4 {
            font-weight: 700;
            font-size: 16px;
            margin-bottom: 5px;
        }

        .about-feature-item p {
            font-size: 13px;
            margin-bottom: 0;
            color: var(--text-gray);
        }

        /* AIGC服务 & 一站式制作 */
        .services {
            background-color: var(--bg-light);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: 30px;
        }

        .service-card {
            background-color: var(--bg-white);
            border-radius: 20px;
            padding: 40px 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
            transition: var(--transition);
            border: 1px solid rgba(226, 232, 240, 0.6);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(124, 58, 237, 0.08);
            border-color: rgba(124, 58, 237, 0.2);
        }

        .service-icon {
            width: 60px;
            height: 60px;
            background: rgba(124, 58, 237, 0.1);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 25px;
        }

        .service-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .service-card p {
            color: var(--text-gray);
            font-size: 14px;
            margin-bottom: 20px;
            flex-grow: 1;
        }

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

        .service-tags span {
            background-color: var(--bg-light);
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--text-gray);
        }

        /* 平台支持模型云 */
        .models-cloud {
            margin-top: 60px;
            background-color: var(--bg-white);
            border-radius: 24px;
            padding: 40px;
            border: 1px solid var(--border-color);
            text-align: center;
        }

        .models-cloud h3 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 25px;
        }

        .tags-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }

        .model-tag {
            background-color: #f1f5f9;
            color: var(--text-dark);
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            transition: var(--transition);
        }

        .model-tag:hover {
            background: var(--neon-border);
            color: var(--text-light);
            transform: scale(1.05);
        }

        /* 标准化流程 */
        .process {
            background-color: var(--bg-white);
        }

        .process-timeline {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            position: relative;
        }

        .process-step {
            text-align: center;
            position: relative;
        }

        .step-num {
            width: 50px;
            height: 50px;
            background: var(--neon-border);
            color: var(--text-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            margin: 0 auto 20px;
            box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
        }

        .process-step h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .process-step p {
            font-size: 13px;
            color: var(--text-gray);
        }

        /* 对比评测 */
        .comparison {
            background-color: var(--bg-light);
        }

        .comparison-summary {
            background: linear-gradient(135deg, #1e1b4b 0%, #0f172a 100%);
            color: var(--text-light);
            border-radius: 24px;
            padding: 40px;
            margin-bottom: 50px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 30px;
        }

        .comp-score {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .score-big {
            font-size: 64px;
            font-weight: 900;
            background: var(--neon-border);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .score-details h4 {
            font-size: 20px;
            font-weight: 700;
        }

        .score-stars {
            color: #fbbf24;
            font-size: 20px;
            margin-top: 5px;
        }

        .comp-desc {
            max-width: 600px;
            font-size: 15px;
            opacity: 0.85;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            background-color: var(--bg-white);
        }

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

        th, td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
        }

        th {
            background-color: #f8fafc;
            font-weight: 700;
            color: var(--text-dark);
        }

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

        /* Token比价 */
        .price-section {
            background-color: var(--bg-white);
        }

        /* 职业技术培训 */
        .training {
            background-color: var(--bg-light);
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .training-card {
            background-color: var(--bg-white);
            border-radius: 20px;
            padding: 35px;
            box-shadow: 0 8px 30px rgba(0,0,0,0.02);
            border-top: 5px solid var(--primary);
        }

        .training-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .training-card ul {
            list-style: none;
            padding: 0;
            margin-bottom: 25px;
        }

        .training-card li {
            font-size: 14px;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-gray);
        }

        .training-card li::before {
            content: '✓';
            color: var(--accent);
            font-weight: 900;
        }

        /* 案例展示 */
        .cases {
            background-color: var(--bg-white);
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: 30px;
        }

        .case-card {
            background-color: var(--bg-light);
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.08);
        }

        .case-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }

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

        .case-info {
            padding: 25px;
        }

        .case-tag {
            background-color: rgba(124, 58, 237, 0.1);
            color: var(--primary);
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 15px;
        }

        .case-info h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .case-info p {
            font-size: 14px;
            color: var(--text-gray);
        }

        /* 客户评论 */
        .reviews {
            background-color: var(--bg-light);
        }

        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .review-card {
            background-color: var(--bg-white);
            border-radius: 20px;
            padding: 30px;
            box-shadow: 0 5px 25px rgba(0,0,0,0.02);
            position: relative;
        }

        .review-stars {
            color: #fbbf24;
            margin-bottom: 15px;
        }

        .review-text {
            font-size: 14px;
            color: var(--text-gray);
            margin-bottom: 20px;
            font-style: italic;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .author-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background-color: var(--bg-card);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: var(--primary);
        }

        .author-info h4 {
            font-size: 14px;
            font-weight: 700;
        }

        .author-info p {
            font-size: 12px;
            color: var(--text-gray);
        }

        /* 行业资讯 & 知识库 */
        .news {
            background-color: var(--bg-white);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .news-card {
            background-color: var(--bg-light);
            border-radius: 16px;
            padding: 25px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .news-card:hover {
            border-color: var(--primary);
        }

        .news-date {
            font-size: 12px;
            color: var(--text-gray);
            margin-bottom: 10px;
        }

        .news-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 15px;
            line-height: 1.4;
        }

        .news-card a {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .news-card a:hover {
            color: var(--secondary);
        }

        /* FAQ 折叠面板 */
        .faq-section {
            background-color: var(--bg-light);
        }

        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .faq-item {
            background-color: var(--bg-white);
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
        }

        .faq-question {
            padding: 20px 25px;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-question::after {
            content: '+';
            font-size: 20px;
            font-weight: 300;
            transition: var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: #f8fafc;
        }

        .faq-answer p {
            padding: 20px 25px;
            font-size: 14px;
            color: var(--text-gray);
            border-top: 1px solid var(--border-color);
        }

        /* 联系我们 & 智能表单 */
        .contact {
            background-color: var(--bg-white);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }

        @media (max-width: 768px) {
            .contact-grid {
                grid-template-columns: 1fr;
            }
        }

        .contact-info-area h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 25px;
        }

        .contact-details {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-bottom: 40px;
        }

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

        .contact-icon {
            font-size: 20px;
            color: var(--primary);
        }

        .contact-text h4 {
            font-size: 16px;
            font-weight: 700;
        }

        .contact-text p {
            font-size: 14px;
            color: var(--text-gray);
        }

        /* 需求提交表单 */
        .contact-form {
            background-color: var(--bg-light);
            padding: 40px;
            border-radius: 24px;
            border: 1px solid var(--border-color);
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            background-color: var(--bg-white);
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
        }

        select.form-control {
            appearance: none;
            background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23475569' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            background-size: 16px;
        }

        /* 页脚 */
        footer {
            background-color: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: var(--text-light);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }

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

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

        .footer-col a:hover {
            color: var(--primary-light);
        }

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

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px 25px;
        }

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

        .footer-links a:hover {
            color: var(--text-light);
        }

        /* 浮动客服 & 社交 */
        .fixed-social {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .social-btn {
            width: 50px;
            height: 50px;
            background-color: var(--bg-white);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            position: relative;
        }

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

        .social-btn.primary-color {
            background: var(--neon-border);
            color: var(--text-light);
        }

        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background-color: var(--bg-white);
            padding: 15px;
            border-radius: 12px;
            box-shadow: 0 8px 30px rgba(0,0,0,0.15);
            display: none;
            width: 150px;
            text-align: center;
        }

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

        .qr-popover span {
            font-size: 11px;
            color: var(--text-dark);
            font-weight: 600;
        }

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

        .ai-page-home-link {
            font-weight: 700;
            color: var(--primary) !important;
        }

        /* 体验网络标记 */
        .service-net {
            background-color: var(--bg-white);
        }
        
        .net-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
            text-align: center;
        }
        .net-card {
            padding: 25px;
            border-radius: 12px;
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
        }
        .net-card h4 {
            font-size: 16px;
            margin-bottom: 5px;
        }