/* 基础重置 */
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      scroll-behavior: smooth;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
      background-color: #FCFAF7;
      color: #2D3142;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    
    /* 容器规范 */
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
      width: 100%;
    }
    
    /* 统一排版与对比 */
    h1, h2, h3, h4, h5, h6 {
      color: #1A1C23;
      font-weight: 700;
      line-height: 1.3;
    }
    a {
      text-decoration: none;
      color: #FF5A09;
      transition: color 0.3s ease;
    }
    a:hover {
      color: #FF8C00;
    }
    
    /* 导航栏 */
    header {
      background-color: #FFFFFF;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
      position: sticky;
      top: 0;
      z-index: 1000;
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 70px;
    }
    .logo-area {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .ai-page-logo {
      height: 45px;
      width: auto;
      object-fit: contain;
    }
    .logo-text {
      font-size: 20px;
      font-weight: 800;
      background: linear-gradient(135deg, #FF5A09, #FF8C00);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .nav-menu {
      display: flex;
      gap: 20px;
      list-style: none;
    }
    .nav-menu a {
      color: #4A4E69;
      font-size: 14px;
      font-weight: 600;
      padding: 5px 10px;
      border-radius: 4px;
      transition: all 0.3s ease;
    }
    .nav-menu a:hover {
      color: #FF5A09;
      background-color: rgba(255, 90, 9, 0.05);
    }
    .nav-btn {
      background: linear-gradient(135deg, #FF5A09, #FF8C00);
      color: #FFFFFF !important;
      padding: 8px 18px !important;
      border-radius: 20px !important;
      box-shadow: 0 4px 10px rgba(255, 90, 9, 0.2);
    }
    .nav-btn:hover {
      box-shadow: 0 6px 15px rgba(255, 90, 9, 0.3);
      transform: translateY(-1px);
    }
    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
    }
    .menu-toggle span {
      display: block;
      width: 25px;
      height: 3px;
      background-color: #2D3142;
      border-radius: 2px;
      transition: 0.3s;
    }

    /* 亮橙炽艳 Hero (首屏 - 严禁出现图片) */
    .hero-section {
      background: linear-gradient(135deg, #1A1C23 0%, #2A2A35 100%);
      color: #FFFFFF;
      padding: 100px 0 120px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .hero-section::before {
      content: '';
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background: radial-gradient(circle, rgba(255,90,9,0.15) 0%, rgba(0,0,0,0) 70%);
      pointer-events: none;
    }
    .hero-badge {
      display: inline-block;
      background: rgba(255, 90, 9, 0.15);
      border: 1px solid rgba(255, 90, 9, 0.3);
      color: #FF7A00;
      padding: 6px 16px;
      border-radius: 50px;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 25px;
    }
    .hero-section h1 {
      color: #FFFFFF;
      font-size: 42px;
      line-height: 1.25;
      margin-bottom: 20px;
      font-weight: 800;
      letter-spacing: -0.5px;
    }
    .hero-desc {
      color: #A0A5C1;
      font-size: 18px;
      max-width: 800px;
      margin: 0 auto 40px;
    }
    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 15px;
      flex-wrap: wrap;
    }
    .btn-primary {
      background: linear-gradient(135deg, #FF5A09, #FF8C00);
      color: #FFFFFF;
      padding: 14px 32px;
      font-size: 16px;
      font-weight: 700;
      border-radius: 30px;
      border: none;
      cursor: pointer;
      box-shadow: 0 8px 20px rgba(255, 90, 9, 0.3);
      transition: all 0.3s ease;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-primary:hover {
      color: #FFFFFF;
      box-shadow: 0 12px 25px rgba(255, 90, 9, 0.4);
      transform: translateY(-2px);
    }
    .btn-secondary {
      background: rgba(255, 255, 255, 0.08);
      color: #FFFFFF;
      padding: 14px 32px;
      font-size: 16px;
      font-weight: 700;
      border-radius: 30px;
      border: 1px solid rgba(255, 255, 255, 0.2);
      cursor: pointer;
      transition: all 0.3s ease;
    }
    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: #FF5A09;
      transform: translateY(-2px);
    }
    
    /* 核心段落与通用模块头 */
    section {
      padding: 80px 0;
    }
    .section-dark {
      background-color: #1E1E24;
      color: #FFFFFF;
    }
    .section-dark h2, .section-dark h3 {
      color: #FFFFFF;
    }
    .section-header {
      text-align: center;
      margin-bottom: 50px;
    }
    .section-header h2 {
      font-size: 32px;
      position: relative;
      display: inline-block;
      padding-bottom: 15px;
    }
    .section-header h2::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 60px;
      height: 4px;
      background: #FF5A09;
      border-radius: 2px;
    }
    .section-header p {
      color: #6C7293;
      margin-top: 15px;
      font-size: 16px;
    }

    /* 关于我们与软件介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .about-content {
      font-size: 16px;
      color: #4A4E69;
    }
    .about-content p {
      margin-bottom: 20px;
    }
    .software-intro-cards {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-top: 30px;
    }
    .software-card {
      background: #FFFFFF;
      padding: 20px;
      border-radius: 8px;
      border-left: 4px solid #FF5A09;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
    }
    .software-card h4 {
      font-size: 16px;
      margin-bottom: 8px;
      color: #1A1C23;
    }
    .software-card p {
      font-size: 13px;
      color: #6C7293;
      margin-bottom: 0;
    }
    .about-visual {
      background: linear-gradient(135deg, rgba(255, 90, 9, 0.05) 0%, rgba(255, 140, 0, 0.05) 100%);
      border: 1px solid rgba(255, 90, 9, 0.1);
      padding: 40px;
      border-radius: 16px;
      text-align: center;
    }
    .about-tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 20px;
    }
    .tag-item {
      background: #FFFFFF;
      color: #FF5A09;
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 600;
      border: 1px solid rgba(255, 90, 9, 0.1);
      box-shadow: 0 2px 8px rgba(0,0,0,0.02);
    }
    
    /* 全平台 AIGC 服务体系 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
    }
    .service-card {
      background: #FFFFFF;
      border-radius: 12px;
      padding: 30px;
      box-shadow: 0 5px 20px rgba(0,0,0,0.03);
      border: 1px solid #F1ECE6;
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }
    .service-card::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, #FF5A09, #FF8C00);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 0.3s ease;
    }
    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 30px rgba(255, 90, 9, 0.1);
    }
    .service-card:hover::after {
      transform: scaleX(1);
    }
    .service-icon {
      font-size: 36px;
      color: #FF5A09;
      margin-bottom: 20px;
    }
    .service-card h3 {
      font-size: 20px;
      margin-bottom: 12px;
    }
    .service-card p {
      font-size: 14px;
      color: #6C7293;
    }

    /* AIGC 制作流程 & 标准化流程 (合并排版，避免臃肿) */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .flow-step {
      background: #FFFFFF;
      padding: 25px;
      border-radius: 12px;
      border: 1px solid #F1ECE6;
      position: relative;
      text-align: center;
      z-index: 2;
    }
    .step-number {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, #FF5A09, #FF8C00);
      color: #FFFFFF;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin: 0 auto 15px;
      box-shadow: 0 4px 10px rgba(255, 90, 9, 0.2);
    }
    .flow-step h4 {
      font-size: 18px;
      margin-bottom: 10px;
    }
    .flow-step p {
      font-size: 13px;
      color: #6C7293;
    }

    /* 行业解决方案与全国服务网络 */
    .solution-tabs {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-bottom: 40px;
    }
    .sol-tab-content {
      background: #FFFFFF;
      padding: 30px;
      border-radius: 12px;
      border: 1px solid #F1ECE6;
    }
    .sol-list {
      list-style-type: none;
      margin-top: 15px;
    }
    .sol-list li {
      font-size: 14px;
      padding: 6px 0;
      color: #4A4E69;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .sol-list li::before {
      content: "✓";
      color: #FF5A09;
      font-weight: bold;
    }
    .network-section {
      background-color: #FFF6F0;
      border-top: 1px solid rgba(255, 90, 9, 0.1);
      border-bottom: 1px solid rgba(255, 90, 9, 0.1);
    }
    .network-grid {
      display: grid;
      grid-template-columns: 1fr 2fr;
      gap: 40px;
      align-items: center;
    }
    .network-cities {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 15px;
    }
    .city-card {
      background: #FFFFFF;
      padding: 15px;
      border-radius: 8px;
      text-align: center;
      font-weight: 600;
      border: 1px solid rgba(255,90,9,0.08);
      box-shadow: 0 2px 8px rgba(0,0,0,0.02);
    }

    /* 对比评测板块 */
    .evaluation-card {
      background: #FFFFFF;
      border-radius: 16px;
      padding: 40px;
      box-shadow: 0 10px 40px rgba(255, 90, 9, 0.05);
      border: 1px solid #F1ECE6;
    }
    .eval-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid #F1ECE6;
      padding-bottom: 25px;
      margin-bottom: 30px;
      flex-wrap: wrap;
      gap: 20px;
    }
    .eval-score-wrapper {
      display: flex;
      align-items: center;
      gap: 15px;
    }
    .eval-score-num {
      font-size: 56px;
      font-weight: 900;
      color: #FF5A09;
      line-height: 1;
    }
    .eval-score-detail {
      font-size: 14px;
      color: #6C7293;
    }
    .eval-stars {
      color: #FFB800;
      font-size: 20px;
      margin-top: 5px;
    }
    .eval-table-container {
      overflow-x: auto;
    }
    .eval-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 700px;
    }
    .eval-table th, .eval-table td {
      padding: 15px;
      text-align: left;
      border-bottom: 1px solid #F1ECE6;
    }
    .eval-table th {
      background-color: #FAF6F0;
      color: #1A1C23;
      font-weight: 700;
    }
    .eval-table tr:hover {
      background-color: rgba(255, 90, 9, 0.02);
    }
    .highlight-cell {
      color: #FF5A09;
      font-weight: 700;
    }

    /* Token 比价与软件标准 */
    .token-section {
      background: #FFFFFF;
    }
    .token-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 40px;
    }
    .token-list {
      display: flex;
      flex-direction: column;
      gap: 15px;
    }
    .token-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 12px 20px;
      background: #FAF9F6;
      border-radius: 8px;
      border-left: 4px solid #4A4E69;
    }
    .token-row.best-price {
      background: #FFF5EE;
      border-left-color: #FF5A09;
    }
    .token-name {
      font-weight: 700;
    }
    .token-price {
      color: #FF5A09;
      font-weight: 700;
    }

    /* 培训业务 */
    .training-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 15px;
    }
    .training-card {
      background: #FFFFFF;
      padding: 25px 20px;
      border-radius: 12px;
      text-align: center;
      border: 1px solid #F1ECE6;
      transition: all 0.3s ease;
    }
    .training-card:hover {
      transform: translateY(-5px);
      border-color: #FF5A09;
      box-shadow: 0 8px 25px rgba(255, 90, 9, 0.08);
    }
    .training-card h4 {
      font-size: 16px;
      margin-bottom: 12px;
      color: #1A1C23;
    }
    .training-card p {
      font-size: 13px;
      color: #6C7293;
    }

    /* 客户案例与真实图显 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }
    .case-card {
      background: #FFFFFF;
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 10px 30px rgba(0,0,0,0.03);
      border: 1px solid #F1ECE6;
    }
    .case-img-wrapper {
      position: relative;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background-color: #E2E8F0;
    }
    .case-img-wrapper img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .case-card:hover .case-img-wrapper img {
      transform: scale(1.05);
    }
    .case-info {
      padding: 25px;
    }
    .case-tag {
      display: inline-block;
      background-color: rgba(255,90,9,0.08);
      color: #FF5A09;
      font-size: 12px;
      font-weight: 600;
      padding: 3px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    .case-info h3 {
      font-size: 20px;
      margin-bottom: 10px;
    }
    .case-info p {
      font-size: 14px;
      color: #6C7293;
    }

    /* 客户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
      margin-top: 40px;
    }
    .review-card {
      background: #FFFFFF;
      padding: 30px;
      border-radius: 12px;
      box-shadow: 0 4px 20px rgba(0,0,0,0.02);
      border: 1px solid #F1ECE6;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-text {
      font-size: 14px;
      color: #4A4E69;
      font-style: italic;
      margin-bottom: 20px;
    }
    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .review-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, #FF5A09, #FF8C00);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFFFFF;
      font-weight: 700;
      font-size: 14px;
    }
    .review-meta h5 {
      font-size: 14px;
      color: #1A1C23;
    }
    .review-meta span {
      font-size: 12px;
      color: #9094B1;
    }

    /* 智能需求匹配与表单板块 */
    .matching-section {
      background-color: #FFF6F0;
    }
    .matching-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }
    .matching-form-card {
      background: #FFFFFF;
      padding: 40px;
      border-radius: 16px;
      box-shadow: 0 10px 40px rgba(255, 90, 9, 0.08);
      border: 1px solid rgba(255,90,9,0.1);
    }
    .form-group {
      margin-bottom: 20px;
    }
    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 8px;
      color: #1A1C23;
    }
    .form-group input, .form-group select, .form-group textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid #D2D6E4;
      border-radius: 8px;
      font-size: 14px;
      outline: none;
      transition: all 0.3s ease;
      background-color: #FCFAF7;
    }
    .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
      border-color: #FF5A09;
      background-color: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(255, 90, 9, 0.1);
    }
    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 15px;
    }

    /* 帮助中心、自助排查、FAQ */
    .faq-accordion {
      display: flex;
      flex-direction: column;
      gap: 12px;
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: #FFFFFF;
      border-radius: 8px;
      border: 1px solid #F1ECE6;
      overflow: hidden;
      transition: all 0.3s ease;
    }
    .faq-header {
      padding: 18px 24px;
      background: #FFFFFF;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 700;
      font-size: 16px;
      color: #1A1C23;
    }
    .faq-icon {
      transition: transform 0.3s ease;
      font-size: 18px;
      color: #FF5A09;
    }
    .faq-body {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background-color: #FAF9F6;
    }
    .faq-content {
      padding: 20px 24px;
      font-size: 14px;
      color: #4A4E69;
      line-height: 1.6;
    }
    .faq-item.active .faq-body {
      max-height: 250px;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    /* 自助排查与术语百科 */
    .troubleshoot-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .troubleshoot-card {
      background: #FFFFFF;
      padding: 25px;
      border-radius: 8px;
      border-top: 4px solid #FF8C00;
      box-shadow: 0 4px 15px rgba(0,0,0,0.02);
    }
    .troubleshoot-card h4 {
      margin-bottom: 10px;
    }
    .troubleshoot-card ol {
      padding-left: 20px;
      font-size: 13px;
      color: #6C7293;
    }

    /* 行业资讯 / 知识库 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
    }
    .news-card {
      background: #FFFFFF;
      border-radius: 8px;
      overflow: hidden;
      border: 1px solid #F1ECE6;
      padding: 25px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .news-card h4 {
      font-size: 16px;
      margin-bottom: 15px;
      line-height: 1.4;
    }
    .news-link {
      font-size: 13px;
      font-weight: 600;
      color: #FF5A09;
      display: inline-flex;
      align-items: center;
      gap: 5px;
    }

    /* 底部联系与信息 */
    .contact-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      align-items: start;
    }
    .contact-info-list {
      list-style: none;
      margin-top: 20px;
    }
    .contact-info-list li {
      margin-bottom: 15px;
      font-size: 14px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .qr-box {
      text-align: center;
      background: #FFFFFF;
      padding: 20px;
      border-radius: 12px;
      border: 1px solid #F1ECE6;
    }
    .qr-box img {
      max-width: 130px;
      height: auto;
      margin-bottom: 10px;
      border-radius: 4px;
    }

    /* 页脚与友情链接 */
    footer {
      background-color: #1A1C23;
      color: #A0A5C1;
      padding: 40px 0 20px;
      border-top: 1px solid #2D3142;
      font-size: 13px;
    }
    .footer-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
      border-bottom: 1px solid #2D3142;
      padding-bottom: 30px;
      margin-bottom: 20px;
    }
    .footer-links {
      display: flex;
      gap: 15px;
      flex-wrap: wrap;
    }
    .footer-links a {
      color: #A0A5C1;
    }
    .footer-links a:hover {
      color: #FF5A09;
    }
    .copyright-area {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 15px;
    }
    
    /* 悬浮窗设计 */
    .sticky-contact {
      position: fixed;
      right: 20px;
      bottom: 100px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .sticky-btn {
      width: 50px;
      height: 50px;
      background: #FF5A09;
      color: #FFFFFF;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(255, 90, 9, 0.3);
      position: relative;
    }
    .sticky-btn:hover {
      background: #FF8C00;
    }
    .sticky-btn .tooltip {
      position: absolute;
      right: 60px;
      background: #FFFFFF;
      color: #1A1C23;
      padding: 8px 15px;
      border-radius: 6px;
      font-size: 13px;
      box-shadow: 0 4px 15px rgba(0,0,0,0.1);
      white-space: nowrap;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s ease;
      border: 1px solid #F1ECE6;
    }
    .sticky-btn:hover .tooltip {
      opacity: 1;
    }

    /* 响应式媒体查询 */
    @media (max-width: 992px) {
      .about-grid, .matching-wrapper, .network-grid, .token-grid, .contact-grid {
        grid-template-columns: 1fr;
      }
      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .training-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background-color: #FFFFFF;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        padding: 20px;
        gap: 15px;
      }
      .nav-menu.active {
        display: flex;
      }
      .menu-toggle {
        display: flex;
      }
      .hero-section h1 {
        font-size: 32px;
      }
      .training-grid, .reviews-grid, .news-grid, .troubleshoot-grid, .solution-tabs {
        grid-template-columns: 1fr;
      }
      .flow-steps {
        grid-template-columns: 1fr;
      }
      .case-grid {
        grid-template-columns: 1fr;
      }
    }