:root {
            --primary: #00b4db;
            --primary-dark: #0083b0;
            --primary-light: #e0f7fa;
            --accent: #00f2fe;
            --dark: #0f172a;
            --gray-dark: #1e293b;
            --gray: #64748b;
            --gray-light: #f8fafc;
            --white: #ffffff;
            --border-radius: 12px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
        }

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

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

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

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

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

        /* 顶部导航 */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background-color: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
            z-index: 1000;
            transition: var(--transition);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            height: 40px;
        }

        .logo-wrap img {
            max-height: 40px;
        }

        .nav {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--gray-dark);
        }

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

        .nav-btns {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
        }

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

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

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--white);
            box-shadow: 0 4px 15px rgba(0, 180, 219, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 180, 219, 0.4);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--gray-dark);
        }

        /* 移动端导航展开样式 */
        @media (max-width: 992px) {
            .nav {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                width: 100%;
                background-color: var(--white);
                flex-direction: column;
                padding: 24px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
                border-top: 1px solid #edf2f7;
                gap: 16px;
                max-height: calc(100vh - 72px);
                overflow-y: auto;
            }

            .nav.active {
                display: flex;
            }

            .menu-toggle {
                display: block;
            }

            .nav-btns {
                width: 100%;
                flex-direction: column;
            }

            .nav-btns .btn {
                width: 100%;
            }
        }

        /* 全局Section定义 */
        section {
            padding: 80px 0;
        }

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

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

        .section-subtitle {
            font-size: 14px;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 2px;
            font-weight: 700;
            margin-bottom: 8px;
            display: block;
        }

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

        .section-desc {
            color: var(--gray);
            max-width: 600px;
            margin: 12px auto 0;
        }

        /* 首屏 Hero - 无图片 */
        .hero-section {
            padding-top: 160px;
            padding-bottom: 100px;
            background: radial-gradient(circle at 80% 20%, rgba(0, 242, 254, 0.08) 0%, transparent 50%),
                        radial-gradient(circle at 10% 80%, rgba(0, 180, 219, 0.08) 0%, transparent 50%),
                        var(--gray-light);
            position: relative;
            overflow: hidden;
        }

        .hero-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            position: relative;
            z-index: 10;
        }

        .h1-title {
            font-size: clamp(28px, 4.5vw, 48px);
            font-weight: 900;
            line-height: 1.25;
            color: var(--dark);
            margin-bottom: 24px;
            max-width: 900px;
        }

        .h1-title span {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: clamp(16px, 2vw, 18px);
            color: var(--gray);
            max-width: 750px;
            margin-bottom: 40px;
        }

        .hero-action {
            display: flex;
            gap: 16px;
            margin-bottom: 60px;
            flex-wrap: wrap;
            justify-content: center;
        }

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

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
            width: 100%;
            max-width: 1000px;
        }

        .stat-card {
            background-color: var(--white);
            padding: 24px;
            border-radius: var(--border-radius);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
            border: 1px solid rgba(0, 180, 219, 0.1);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 180, 219, 0.08);
        }

        .stat-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }

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

        /* 关于我们与平台介绍 */
        .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-text h3 {
            font-size: 24px;
            margin-bottom: 16px;
            color: var(--dark);
        }

        .about-text p {
            color: var(--gray);
            margin-bottom: 20px;
            font-size: 15px;
        }

        .feature-bullets {
            list-style: none;
        }

        .feature-bullets li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 12px;
            font-size: 15px;
            color: var(--gray-dark);
        }

        .feature-bullets li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: bold;
        }

        .about-media {
            background: linear-gradient(135deg, var(--primary-light), rgba(0,242,254,0.1));
            border-radius: var(--border-radius);
            padding: 40px;
            border: 1px solid rgba(0, 180, 219, 0.2);
        }

        .platform-badge-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .badge-card {
            background-color: var(--white);
            padding: 16px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            color: var(--dark);
            text-align: center;
            border: 1px solid rgba(0,0,0,0.05);
        }

        /* 全平台AIGC服务与模型聚合 */
        .tags-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 900px;
            margin: 0 auto;
        }

        .model-tag {
            background-color: var(--white);
            border: 1px solid #e2e8f0;
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 14px;
            color: var(--gray-dark);
            font-weight: 500;
            transition: var(--transition);
        }

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

        /* 一站式AIGC制作场景与行业解决方案 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .service-card {
            background-color: var(--white);
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
            border: 1px solid #edf2f7;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0, 180, 219, 0.1);
            border-color: rgba(0, 180, 219, 0.3);
        }

        .service-icon {
            width: 50px;
            height: 50px;
            border-radius: 10px;
            background-color: var(--primary-light);
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--dark);
        }

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

        /* 流程步骤与时间线 */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
            position: relative;
        }

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

        .step-num {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--white);
            font-size: 24px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 4px 15px rgba(0, 180, 219, 0.2);
        }

        .process-step h3 {
            font-size: 18px;
            margin-bottom: 10px;
            color: var(--dark);
        }

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

        /* 案例展示 - 使用素材图 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .case-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0,0,0,0.03);
            border: 1px solid #edf2f7;
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.08);
        }

        .case-media {
            position: relative;
            overflow: hidden;
            background-color: #f7fafc;
        }

        .case-media img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: var(--transition);
        }

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

        .case-body {
            padding: 24px;
        }

        .case-tag {
            display: inline-block;
            padding: 4px 10px;
            background-color: var(--primary-light);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 600;
            border-radius: 4px;
            margin-bottom: 12px;
        }

        .case-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--dark);
        }

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

        /* 对比评测表格 */
        .table-responsive {
            overflow-x: auto;
            border-radius: var(--border-radius);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
            border: 1px solid #edf2f7;
        }

        .eval-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            background-color: var(--white);
            min-width: 600px;
        }

        .eval-table th, .eval-table td {
            padding: 16px 24px;
            border-bottom: 1px solid #edf2f7;
        }

        .eval-table th {
            background-color: var(--gray-light);
            font-weight: 700;
            color: var(--dark);
        }

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

        .eval-table tr.highlight {
            background-color: rgba(0, 180, 219, 0.03);
        }

        .badge-score {
            display: inline-flex;
            align-items: center;
            background-color: #ffd700;
            color: #5c3a00;
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 700;
            font-size: 12px;
        }

        /* 价格比价参考与全国网络 */
        .grid-two-cols {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

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

        .price-list, .network-list {
            background-color: var(--white);
            padding: 30px;
            border-radius: var(--border-radius);
            border: 1px solid #edf2f7;
        }

        .price-item, .network-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px dashed #e2e8f0;
        }

        .price-item:last-child, .network-item:last-child {
            border-bottom: none;
        }

        .price-name {
            font-weight: 600;
        }

        .price-val {
            color: var(--primary-dark);
            font-weight: 700;
        }

        /* 加盟代理板块 */
        .agent-banner {
            background: linear-gradient(135deg, var(--dark), var(--gray-dark));
            color: var(--white);
            border-radius: var(--border-radius);
            padding: 50px;
            text-align: center;
            border: 1px solid rgba(0, 180, 219, 0.2);
        }

        .agent-banner h3 {
            font-size: 28px;
            margin-bottom: 16px;
            color: var(--white);
        }

        .agent-banner p {
            color: rgba(255, 255, 255, 0.8);
            max-width: 700px;
            margin: 0 auto 30px;
        }

        /* 评论板块 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .comment-card {
            background-color: var(--white);
            padding: 30px;
            border-radius: var(--border-radius);
            border: 1px solid #edf2f7;
            box-shadow: 0 4px 20px rgba(0,0,0,0.01);
        }

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

        .comment-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .author-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary-dark);
        }

        .author-info h4 {
            font-size: 15px;
            color: var(--dark);
        }

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

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

        .faq-item {
            background-color: var(--white);
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-trigger {
            width: 100%;
            padding: 18px 24px;
            text-align: left;
            background: none;
            border: none;
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-trigger::after {
            content: "+";
            font-size: 20px;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item.active .faq-trigger::after {
            content: "−";
        }

        .faq-content {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out, padding 0.3s ease-out;
            color: var(--gray);
            font-size: 14px;
        }

        .faq-item.active .faq-content {
            padding: 0 24px 18px;
            max-height: 300px;
        }

        /* 需求提交表单区 */
        .contact-section-inner {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
        }

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

        .form-wrap {
            background-color: var(--white);
            padding: 40px;
            border-radius: var(--border-radius);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
            border: 1px solid #edf2f7;
        }

        .form-title {
            font-size: 22px;
            margin-bottom: 24px;
            color: var(--dark);
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #cbd5e1;
            border-radius: 6px;
            font-size: 14px;
            color: var(--gray-dark);
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 180, 219, 0.15);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 120px;
        }

        .contact-info-card {
            background-color: var(--white);
            padding: 40px;
            border-radius: var(--border-radius);
            border: 1px solid #edf2f7;
        }

        .contact-info-title {
            font-size: 22px;
            margin-bottom: 24px;
            color: var(--dark);
        }

        .info-list-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 20px;
        }

        .info-list-item h5 {
            font-size: 14px;
            color: var(--gray);
            margin-bottom: 4px;
        }

        .info-list-item p {
            font-size: 15px;
            color: var(--dark);
            font-weight: 600;
        }

        .qrcode-wrap {
            margin-top: 30px;
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .qrcode-item {
            text-align: center;
        }

        .qrcode-item img {
            width: 120px;
            height: 120px;
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            padding: 4px;
            margin-bottom: 8px;
        }

        .qrcode-item span {
            font-size: 12px;
            color: var(--gray);
            display: block;
        }

        /* 知识库/最新文章 */
        .articles-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .article-card {
            background-color: var(--white);
            border: 1px solid #edf2f7;
            padding: 24px;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }

        .article-card:hover {
            border-color: var(--primary);
            box-shadow: 0 4px 15px rgba(0, 180, 219, 0.05);
        }

        .article-meta {
            font-size: 12px;
            color: var(--gray);
            margin-bottom: 8px;
        }

        .article-card h4 {
            font-size: 16px;
            margin-bottom: 12px;
            color: var(--dark);
            line-height: 1.4;
        }

        /* 页脚与友情链接 */
        .footer {
            background-color: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
        }

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

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

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

        .footer-col p {
            font-size: 14px;
            line-height: 1.8;
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
        }

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

        .friend-links-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .friend-links-wrap a {
            color: rgba(255, 255, 255, 0.6);
            background-color: rgba(255, 255, 255, 0.05);
            padding: 6px 12px;
            border-radius: 4px;
            font-size: 12px;
            transition: var(--transition);
        }

        .friend-links-wrap a:hover {
            background-color: var(--primary);
            color: var(--white);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
        }

        /* 侧边悬浮浮窗 */
        .floating-kf {
            position: fixed;
            right: 20px;
            bottom: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .kf-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--white);
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid #e2e8f0;
            position: relative;
        }

        .kf-btn:hover {
            background-color: var(--primary);
            color: var(--white);
        }

        .kf-btn svg {
            width: 24px;
            height: 24px;
            fill: currentColor;
        }

        .kf-popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background-color: var(--white);
            border: 1px solid #e2e8f0;
            padding: 16px;
            border-radius: var(--border-radius);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            display: none;
            width: 200px;
            text-align: center;
        }

        .kf-btn:hover .kf-popover {
            display: block;
        }

        .kf-popover img {
            width: 100%;
            border-radius: 4px;
            margin-bottom: 8px;
        }

        .kf-popover span {
            font-size: 12px;
            color: var(--gray-dark);
            font-weight: 600;
        }

        /* 滚动平滑 */
        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
        }