:root {
      --primary: #FF5500;
      --primary-hover: #E04400;
      --primary-light: #FFF2EB;
      --secondary: #FF8A00;
      --accent-glow: rgba(255, 85, 0, 0.12);
      --dark-text: #1F2429;
      --body-text: #4E5969;
      --light-text: #86909C;
      --border-color: #F0ECE9;
      --bg-white: #FFFFFF;
      --bg-light: #FCF9F7;
      --bg-alt: #F7F3F0;
      --container-width: 1200px;
      --shadow-sm: 0 2px 8px rgba(255, 85, 0, 0.05);
      --shadow-md: 0 10px 30px rgba(255, 85, 0, 0.08);
      --shadow-lg: 0 16px 40px rgba(31, 36, 41, 0.08);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.28s ease;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      color: var(--body-text);
      background-color: var(--bg-light);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      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(--container-width);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

    .brand-group {
      display: flex;
      align-items: center;
      gap: 12px;
    }

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

    .brand-name {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--dark-text);
      letter-spacing: -0.5px;
    }

    .brand-name span {
      color: var(--primary);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-links li a {
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--dark-text);
      border-radius: var(--radius-sm);
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background-color: var(--primary-light);
    }

    .header-cta-group {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: 50px;
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      text-align: center;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(255, 85, 0, 0.35);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, var(--primary-hover), var(--primary));
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 85, 0, 0.45);
      color: #FFFFFF;
    }

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

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

    .btn-large {
      padding: 14px 32px;
      font-size: 1.05rem;
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--dark-text);
      cursor: pointer;
    }

    /* Hero 首屏 - 无图片规范 */
    .hero-section {
      padding: 70px 0 60px;
      background: radial-gradient(circle at 80% 20%, #FFF5ED 0%, #FAF5F0 50%, #FFFFFF 100%);
      position: relative;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: var(--primary-light);
      border: 1px solid rgba(255, 85, 0, 0.2);
      border-radius: 50px;
      color: var(--primary);
      font-size: 0.88rem;
      font-weight: 600;
      margin-bottom: 20px;
    }

    .hero-content {
      text-align: center;
      max-width: 880px;
      margin: 0 auto;
    }

    .hero-title {
      font-size: 2.75rem;
      font-weight: 900;
      color: var(--dark-text);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title .highlight {
      color: var(--primary);
      position: relative;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--body-text);
      margin-bottom: 32px;
      line-height: 1.7;
    }

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

    /* 首屏数据指标卡片 - 纯CSS科技感 */
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      margin-top: 10px;
    }

    .stat-card {
      background: #FFFFFF;
      padding: 24px 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
    }

    .stat-card:hover {
      transform: translateY(-4px);
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
    }

    .stat-number {
      font-size: 2rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 6px;
      display: block;
    }

    .stat-label {
      font-size: 0.9rem;
      color: var(--dark-text);
      font-weight: 600;
    }

    .stat-sub {
      font-size: 0.8rem;
      color: var(--light-text);
      margin-top: 4px;
    }

    /* 通用Section布局 */
    .section {
      padding: 80px 0;
      position: relative;
    }

    .section-alt {
      background-color: #FFFFFF;
    }

    .section-head {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 50px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1.5px;
      margin-bottom: 10px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--dark-text);
      margin-bottom: 14px;
    }

    .section-subtitle {
      font-size: 1rem;
      color: var(--body-text);
      line-height: 1.6;
    }

    /* 平台介绍 & 核心能力 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .feature-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: rgba(255, 85, 0, 0.4);
    }

    .feature-icon-badge {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 800;
      font-size: 1.2rem;
      margin-bottom: 20px;
    }

    .feature-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 10px;
    }

    .feature-desc {
      font-size: 0.92rem;
      color: var(--body-text);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* 多模型聚合标签云 */
    .model-tags-wrapper {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .model-tags-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .model-tags-title::before {
      content: "";
      width: 4px;
      height: 18px;
      background: var(--primary);
      border-radius: 2px;
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .model-tag {
      padding: 6px 14px;
      background: var(--bg-light);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      font-size: 0.88rem;
      color: var(--dark-text);
      font-weight: 500;
      transition: var(--transition);
    }

    .model-tag:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--primary-light);
      transform: translateY(-2px);
    }

    /* 场景化 AIGC 制作矩阵 */
    .service-box {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }

    .service-box:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
    }

    .service-box-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 12px;
    }

    .service-box-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--dark-text);
    }

    .service-tag {
      font-size: 0.75rem;
      padding: 3px 8px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 4px;
      font-weight: 600;
    }

    .service-box-desc {
      font-size: 0.9rem;
      color: var(--body-text);
      margin-bottom: 16px;
      line-height: 1.55;
    }

    .service-points {
      list-style: none;
      font-size: 0.85rem;
      color: var(--light-text);
    }

    .service-points li {
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .service-points li::before {
      content: "✓";
      color: var(--primary);
      font-weight: 700;
    }

    /* 案例展示画廊 */
    .media-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .media-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .media-card-img {
      width: 100%;
      aspect-ratio: 16 / 9;
      object-fit: cover;
      background-color: var(--bg-alt);
    }

    .media-card-img.square {
      aspect-ratio: 1 / 1;
    }

    .media-card-body {
      padding: 20px;
    }

    .media-card-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 6px;
    }

    .media-card-text {
      font-size: 0.88rem;
      color: var(--body-text);
    }

    /* 对比评测表格 */
    .rating-banner {
      background: linear-gradient(135deg, #FFF6F0, #FFF0E6);
      border: 1px solid rgba(255, 85, 0, 0.2);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 30px;
      flex-wrap: wrap;
      gap: 16px;
    }

    .rating-info {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .score-badge {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }

    .stars {
      color: #FF8A00;
      font-size: 1.2rem;
      margin-bottom: 4px;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }

    .comparison-table th,
    .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }

    .comparison-table th {
      background: #FAF8F5;
      font-weight: 700;
      color: var(--dark-text);
    }

    .comparison-table th.highlight-col,
    .comparison-table td.highlight-col {
      background: #FFF9F5;
      color: var(--primary);
      font-weight: 600;
    }

    .comparison-table td:first-child {
      font-weight: 600;
      color: var(--dark-text);
    }

    /* 流程步骤 */
    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

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

    .process-number {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #FFFFFF;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin: 0 auto 16px;
      box-shadow: 0 4px 10px rgba(255, 85, 0, 0.3);
    }

    .process-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 8px;
    }

    .process-desc {
      font-size: 0.88rem;
      color: var(--body-text);
    }

    /* 用户评论卡片 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .testimonial-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: var(--shadow-sm);
    }

    .testimonial-quote {
      font-size: 0.95rem;
      color: var(--body-text);
      line-height: 1.6;
      margin-bottom: 20px;
      position: relative;
    }

    .testimonial-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }

    .user-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
    }

    .user-name {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--dark-text);
    }

    .user-role {
      font-size: 0.8rem;
      color: var(--light-text);
    }

    /* FAQ 折叠手风琴 */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
      transition: var(--transition);
    }

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

    .faq-question {
      padding: 18px 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-weight: 600;
      color: var(--dark-text);
      user-select: none;
    }

    .faq-question:hover {
      color: var(--primary);
    }

    .faq-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.25s ease;
    }

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

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

    .faq-answer-inner {
      padding: 0 20px 20px;
      font-size: 0.92rem;
      color: var(--body-text);
      line-height: 1.6;
    }

    /* 需求匹配表单 */
    .form-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
      max-width: 760px;
      margin: 0 auto;
    }

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

    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--dark-text);
      margin-bottom: 8px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--dark-text);
      background: var(--bg-light);
      transition: var(--transition);
      outline: none;
    }

    .form-control:focus {
      border-color: var(--primary);
      background: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(255, 85, 0, 0.1);
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    /* 文章列表 & 行业资讯 */
    .article-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .article-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .article-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .article-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .article-excerpt {
      font-size: 0.88rem;
      color: var(--body-text);
      margin-bottom: 16px;
    }

    .article-link {
      font-size: 0.9rem;
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 联系我们 & 代理加盟 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }

    .contact-info-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-top: 24px;
    }

    .contact-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.95rem;
      color: var(--dark-text);
    }

    .contact-icon {
      width: 36px;
      height: 36px;
      background: var(--primary-light);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 700;
    }

    .qr-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }

    .qr-box img {
      width: 160px;
      height: 160px;
      margin: 0 auto 12px;
      border-radius: var(--radius-sm);
    }

    .qr-box-title {
      font-weight: 700;
      color: var(--dark-text);
      font-size: 0.95rem;
    }

    /* 友情链接与页脚 */
    .site-footer {
      background-color: #1A1D20;
      color: #A4ADB8;
      padding: 60px 0 30px;
      border-top: 3px solid var(--primary);
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid #2B3037;
    }

    .footer-brand h4 {
      color: #FFFFFF;
      font-size: 1.3rem;
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 0.9rem;
      line-height: 1.6;
    }

    .footer-col h5 {
      color: #FFFFFF;
      font-size: 1rem;
      margin-bottom: 16px;
      font-weight: 600;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.9rem;
    }

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

    .footer-friendly-links {
      padding: 24px 0;
      border-bottom: 1px solid #2B3037;
    }

    .friendly-title {
      color: #FFFFFF;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 12px;
    }

    .friendly-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
    }

    .friendly-list a {
      color: #8C96A3;
    }

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

    .footer-bottom {
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      color: #6C7580;
    }

    /* 浮动组件 */
    .float-widget {
      position: fixed;
      right: 24px;
      bottom: 30px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 999;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--dark-text);
      cursor: pointer;
      transition: var(--transition);
      font-size: 1.1rem;
    }

    .float-btn:hover {
      background: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
    }

    /* 响应式断点适配 */
    @media (max-width: 992px) {
      .hero-title {
        font-size: 2.2rem;
      }
      .grid-4, .hero-stats-grid, .process-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3, .testimonials-grid, .article-grid {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--border-color);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 10px;
      }
      .hero-title {
        font-size: 1.85rem;
      }
      .hero-stats-grid, .grid-4, .process-grid, .grid-2 {
        grid-template-columns: 1fr;
      }
      .form-row {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
      }
    }