:root {
            --primary: #0052d9;
            --primary-light: #e3ecfc;
            --secondary: #6c5ce7;
            --accent: #00d2d3;
            --text-dark: #1a202c;
            --text-muted: #4a5568;
            --text-light: #718096;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --gradient-primary: linear-gradient(135deg, #0052d9 0%, #6c5ce7 100%);
            --gradient-accent: linear-gradient(135deg, #00d2d3 0%, #0052d9 100%);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.08);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-dark);
            background-color: var(--bg-light);
        }

        body {
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .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);
            box-shadow: var(--shadow-sm);
            z-index: 1000;
            transition: all 0.3s ease;
        }

        .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;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 8px 12px;
            border-radius: var(--radius-sm);
        }

        .nav-link:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-md);
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-primary {
            background: var(--gradient-primary);
            color: white;
            box-shadow: 0 4px 12px rgba(0, 82, 217, 0.2);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0, 82, 217, 0.3);
        }

        .btn-outline {
            border: 2px solid var(--primary);
            color: var(--primary);
            background: transparent;
        }

        .btn-outline:hover {
            background-color: var(--primary-light);
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--text-dark);
            border-radius: 2px;
            transition: all 0.3s;
        }

        /* 首屏 Hero 区域 - 绝对无图 */
        .hero-section {
            padding: 160px 0 100px;
            background: linear-gradient(180deg, #f0f4f8 0%, var(--bg-light) 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -10%;
            left: -10%;
            width: 40%;
            height: 60%;
            background: radial-gradient(circle, rgba(0, 82, 217, 0.08) 0%, transparent 70%);
            z-index: 1;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -10%;
            right: -10%;
            width: 50%;
            height: 70%;
            background: radial-gradient(circle, rgba(108, 92, 231, 0.08) 0%, transparent 70%);
            z-index: 1;
        }

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

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 24px;
            letter-spacing: 1px;
        }

        .hero-title {
            font-size: 40px;
            line-height: 1.25;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 24px;
        }

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

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

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 60px;
        }

        .hero-btns .btn {
            padding: 14px 32px;
            font-size: 16px;
        }

        /* 核心数据指标 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .stat-card {
            background: var(--bg-white);
            padding: 24px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(0, 0, 0, 0.03);
            transition: transform 0.3s;
        }

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

        .stat-num {
            font-size: 32px;
            font-weight: 800;
            background: var(--gradient-accent);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
        }

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

        /* 通用区块样式 */
        .section {
            padding: 100px 0;
        }

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

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 60px;
        }

        .section-tag {
            color: var(--primary);
            font-weight: 700;
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 12px;
            display: block;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 20px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
        }

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

        .about-content h3 {
            font-size: 24px;
            margin-bottom: 16px;
            color: var(--text-dark);
        }

        .about-text {
            color: var(--text-muted);
            margin-bottom: 30px;
        }

        .about-features {
            list-style: none;
            margin-bottom: 30px;
        }

        .about-features li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 12px;
            font-weight: 500;
            color: var(--text-dark);
        }

        .about-features li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--accent);
            font-weight: 800;
            font-size: 18px;
        }

        .about-image-wrapper {
            position: relative;
        }

        .about-image-wrapper img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            width: 100%;
            height: auto;
        }

        /* 全平台AIGC服务 - 支持的AI平台 */
        .platform-cloud {
            background-color: var(--bg-light);
            padding: 40px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .platform-tag {
            background-color: var(--bg-white);
            color: var(--text-dark);
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(0,0,0,0.05);
            transition: all 0.2s;
        }

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

        /* 一站式AIGC制作 & 全行业解决方案 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .service-card {
            background: var(--bg-white);
            padding: 40px 30px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: all 0.3s;
            border: 1px solid rgba(0, 0, 0, 0.02);
            position: relative;
            overflow: hidden;
        }

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

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

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

        .service-icon {
            width: 60px;
            height: 60px;
            background: var(--primary-light);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            font-size: 28px;
            color: var(--primary);
        }

        .service-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

        .service-card p {
            color: var(--text-light);
            font-size: 15px;
        }

        /* 流程步骤与网络 */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
        }

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

        .step-number {
            width: 50px;
            height: 50px;
            background: var(--gradient-primary);
            color: white;
            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 10px rgba(0, 82, 217, 0.3);
        }

        .process-step h4 {
            font-size: 18px;
            margin-bottom: 8px;
            color: var(--text-dark);
        }

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

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

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 800px;
        }

        .compare-table th, .compare-table td {
            padding: 18px 24px;
            border-bottom: 1px solid #edf2f7;
        }

        .compare-table th {
            background-color: #f7fafc;
            color: var(--text-dark);
            font-weight: 700;
        }

        .compare-table tr:hover {
            background-color: #f8fafc;
        }

        .badge-tag {
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
        }

        .badge-green {
            background-color: #c6f6d5;
            color: #22543d;
        }

        .badge-blue {
            background-color: #ebf8ff;
            color: #2b6cb0;
        }

        /* 对比评测板块 */
        .rating-box {
            background: var(--gradient-primary);
            color: white;
            padding: 40px;
            border-radius: var(--radius-lg);
            text-align: center;
            margin-bottom: 40px;
        }

        .rating-stars {
            font-size: 32px;
            color: #f6e05e;
            margin-bottom: 10px;
        }

        .rating-score {
            font-size: 64px;
            font-weight: 800;
            line-height: 1;
            margin-bottom: 10px;
        }

        .rating-total {
            font-size: 18px;
            opacity: 0.8;
        }

        /* 案例展示区 */
        .cases-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .case-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(0,0,0,0.05);
        }

        .case-img-container {
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .case-img-container img {
            width: 100%;
            height: auto;
            max-height: 350px;
            object-fit: cover;
            transition: transform 0.5s;
        }

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

        .case-info {
            padding: 30px;
        }

        .case-tag {
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 8px;
            display: inline-block;
        }

        .case-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .case-desc {
            color: var(--text-muted);
            font-size: 15px;
        }

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

        .comment-card {
            background: var(--bg-white);
            padding: 30px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            position: relative;
        }

        .comment-text {
            color: var(--text-muted);
            font-size: 15px;
            margin-bottom: 20px;
            font-style: italic;
        }

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

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

        .comment-name {
            font-weight: 700;
            font-size: 15px;
            color: var(--text-dark);
        }

        .comment-title {
            font-size: 13px;
            color: var(--text-light);
        }

        /* 需求匹配与联系我们表单 */
        .form-section {
            background-color: var(--bg-white);
        }

        .form-wrapper {
            background-color: var(--bg-light);
            border-radius: var(--radius-lg);
            padding: 50px;
            box-shadow: var(--shadow-md);
            max-width: 800px;
            margin: 0 auto;
        }

        .form-group {
            margin-bottom: 24px;
        }

        .form-label {
            display: block;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-dark);
        }

        .form-input, .form-select, .form-textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #cbd5e0;
            border-radius: var(--radius-md);
            font-size: 15px;
            background-color: var(--bg-white);
            outline: none;
            transition: all 0.3s;
        }

        .form-input:focus, .form-select:focus, .form-textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 82, 217, 0.15);
        }

        .form-submit-btn {
            width: 100%;
            padding: 14px;
            font-size: 16px;
        }

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

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(0, 0, 0, 0.02);
            overflow: hidden;
        }

        .faq-header {
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
            background-color: var(--bg-white);
        }

        .faq-question {
            font-weight: 700;
            font-size: 16px;
            color: var(--text-dark);
        }

        .faq-icon {
            font-size: 20px;
            transition: transform 0.3s;
            color: var(--primary);
        }

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            padding: 0 24px;
        }

        .faq-content p {
            padding-bottom: 20px;
            color: var(--text-muted);
            font-size: 15px;
        }

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

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

        /* 排查与百科卡片网格 */
        .troubleshoot-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin-top: 40px;
        }

        .info-panel {
            background: var(--bg-white);
            padding: 30px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
        }

        .info-panel h3 {
            font-size: 20px;
            margin-bottom: 20px;
            color: var(--text-dark);
            border-left: 4px solid var(--primary);
            padding-left: 12px;
        }

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

        .info-list li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px solid #edf2f7;
        }

        .info-list li:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }

        .info-title {
            font-weight: 700;
            font-size: 15px;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .info-desc {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 资讯与知识库 */
        .articles-list {
            margin-top: 30px;
        }

        .article-link-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: var(--bg-white);
            padding: 16px 24px;
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(0,0,0,0.02);
        }

        .article-link-item:hover {
            transform: translateX(5px);
            border-color: var(--primary);
        }

        .article-left {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .article-tag {
            background-color: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: bold;
            padding: 4px 8px;
            border-radius: 4px;
        }

        .article-title {
            font-weight: 600;
            color: var(--text-dark);
        }

        .article-arrow {
            color: var(--primary);
            font-weight: bold;
        }

        /* 页脚 */
        footer {
            background-color: #1a202c;
            color: #a0aec0;
            padding: 80px 0 40px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 2fr;
            gap: 40px;
            margin-bottom: 60px;
        }

        .footer-logo-area {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .footer-logo-area p {
            line-height: 1.8;
        }

        .footer-title {
            color: white;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }

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

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

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

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

        .footer-contact-info {
            list-style: none;
        }

        .footer-contact-info li {
            margin-bottom: 12px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .footer-contact-label {
            font-weight: bold;
            color: #e2e8f0;
            white-space: nowrap;
        }

        .friend-links-area {
            border-top: 1px solid #2d3748;
            padding-top: 30px;
            margin-bottom: 30px;
        }

        .friend-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }

        .friend-links-list a {
            color: #718096;
            font-size: 13px;
        }

        .friend-links-list a:hover {
            color: white;
        }

        .copyright-area {
            border-top: 1px solid #2d3748;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* 悬浮客服 */
        .floating-kefu {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            background: white;
            padding: 15px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            display: flex;
            flex-direction: column;
            align-items: center;
            width: 140px;
            text-align: center;
            border: 1px solid #edf2f7;
            transition: all 0.3s;
        }

        .floating-kefu:hover {
            transform: translateY(-5px);
        }

        .floating-kefu img {
            width: 100px;
            height: 100px;
            margin-bottom: 10px;
            border-radius: var(--radius-sm);
        }

        .floating-kefu span {
            font-size: 12px;
            font-weight: 700;
            color: var(--text-dark);
        }

        /* 响应式适配 */
        @media (max-width: 992px) {
            .hero-title {
                font-size: 32px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .process-flow {
                grid-template-columns: repeat(2, 1fr);
            }
            .cases-grid {
                grid-template-columns: 1fr;
            }
            .comments-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .troubleshoot-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: var(--bg-white);
                padding: 20px;
                box-shadow: var(--shadow-md);
                border-top: 1px solid #edf2f7;
            }

            .nav-menu.active {
                display: flex;
            }

            .menu-toggle {
                display: flex;
            }

            .nav-actions {
                display: none;
            }

            .stats-grid {
                grid-template-columns: 1fr;
            }

            .process-flow {
                grid-template-columns: 1fr;
            }

            .form-wrapper {
                padding: 30px 20px;
            }

            .floating-kefu {
                display: none; /* 移动端隐藏悬浮 */
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }

            .copyright-area {
                flex-direction: column;
                gap: 15px;
                text-align: center;
            }
        }