/* 全局 CSS 变量 - 鲜黄耀眼风 (浅底深字，鲜黄点缀) */
    :root {
      --primary-color: #FFD300;     /* 耀眼鲜黄 */
      --primary-hover: #E6BD00;     /* 深黄 */
      --secondary-color: #111827;   /* 深蓝黑（用于文字和深色背景） */
      --text-main: #1F2937;         /* 深灰正文 */
      --text-muted: #4B5563;        /* 灰度文本 */
      --bg-main: #FAF9F6;           /* 米白底色 */
      --bg-white: #FFFFFF;
      --bg-light: #F3F4F6;
      --border-color: #E5E7EB;
      --yellow-glow: 0 10px 30px rgba(255, 211, 0, 0.15);
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Microsoft YaHei", sans-serif;
    }

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

    body {
      font-family: var(--font-family);
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      scroll-behavior: smooth;
    }

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

    ul, ol {
      list-style: none;
    }

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

    /* 容器规范贯穿全页 */
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    section {
      padding: 80px 0;
      border-bottom: 1px solid var(--border-color);
    }

    /* 鲜黄耀眼风格通用组件样式 */
    .badge {
      display: inline-block;
      padding: 6px 16px;
      font-size: 14px;
      font-weight: 700;
      color: var(--secondary-color);
      background-color: var(--primary-color);
      border-radius: 50px;
      margin-bottom: 15px;
      text-transform: uppercase;
      letter-spacing: 1px;
      box-shadow: 0 4px 10px rgba(255, 211, 0, 0.3);
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--secondary-color);
      text-align: center;
      margin-bottom: 15px;
      position: relative;
    }
    .section-title::after {
      content: '';
      display: block;
      width: 60px;
      height: 4px;
      background-color: var(--primary-color);
      margin: 12px auto 0;
      border-radius: 2px;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      text-align: center;
      max-width: 700px;
      margin: 0 auto 50px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 30px;
      font-size: 16px;
      font-weight: 700;
      border-radius: 8px;
      transition: all 0.3s ease;
      cursor: pointer;
      border: none;
    }
    .btn-primary {
      background-color: var(--primary-color);
      color: var(--secondary-color);
      box-shadow: var(--yellow-glow);
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
    }
    .btn-outline {
      background-color: transparent;
      border: 2px solid var(--secondary-color);
      color: var(--secondary-color);
    }
    .btn-outline:hover {
      background-color: var(--secondary-color);
      color: var(--primary-color);
      transform: translateY(-2px);
    }

    /* 顶部导航 */
    header {
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 80px;
    }
    .logo-area {
      display: flex;
      align-items: center;
    }
    .ai-page-logo {
      height: 45px;
      width: auto;
    }
    .logo-text {
      font-size: 20px;
      font-weight: 800;
      color: var(--secondary-color);
      margin-left: 10px;
    }
    .nav-menu {
      display: flex;
      gap: 20px;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      padding: 8px 12px;
      border-radius: 4px;
    }
    .nav-link:hover {
      color: var(--secondary-color);
      background-color: var(--primary-color);
    }
    .nav-btn {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .menu-toggle {
      display: none;
      flex-direction: column;
      justify-content: space-between;
      width: 25px;
      height: 18px;
      cursor: pointer;
    }
    .menu-toggle span {
      display: block;
      height: 3px;
      width: 100%;
      background-color: var(--secondary-color);
      border-radius: 2px;
      transition: all 0.3s;
    }

    /* 首屏 (Hero) - 严格禁止出现任何图片 */
    #hero {
      background: radial-gradient(circle at 80% 20%, rgba(255, 211, 0, 0.15) 0%, transparent 60%),
                  linear-gradient(135deg, var(--bg-white) 0%, var(--bg-light) 100%);
      padding: 120px 0 100px;
      position: relative;
      overflow: hidden;
      border-bottom: 3px solid var(--primary-color);
    }
    .hero-content {
      text-align: center;
      position: relative;
      z-index: 10;
      max-width: 900px;
      margin: 0 auto;
    }
    .hero-h1 {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--secondary-color);
      margin-bottom: 25px;
      letter-spacing: -0.5px;
    }
    .hero-h1 span {
      background: linear-gradient(180deg, var(--secondary-color) 0%, #374151 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-h1 .highlight {
      background: linear-gradient(90deg, #FF9E00, #FFD300);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      border-bottom: 4px dashed var(--primary-color);
    }
    .hero-desc {
      font-size: 18px;
      color: var(--text-muted);
      margin-bottom: 40px;
      line-height: 1.8;
    }
    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }
    .hero-features {
      display: flex;
      justify-content: center;
      gap: 30px;
      flex-wrap: wrap;
    }
    .hero-feat-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 15px;
      font-weight: 700;
      color: var(--secondary-color);
      background-color: var(--bg-white);
      padding: 8px 16px;
      border-radius: 50px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
      border: 1px solid var(--border-color);
    }
    .hero-feat-item::before {
      content: '✓';
      color: var(--primary-hover);
      font-weight: 900;
    }

    /* 数据指标卡片 */
    #stats {
      background-color: var(--secondary-color);
      color: var(--bg-white);
      padding: 50px 0;
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      text-align: center;
    }
    .stat-card .num {
      font-size: 40px;
      font-weight: 800;
      color: var(--primary-color);
      margin-bottom: 5px;
    }
    .stat-card .label {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.7);
    }

    /* 关于我们 */
    #about {
      background-color: var(--bg-white);
    }
    .about-wrapper {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 50px;
      align-items: center;
    }
    .about-text h3 {
      font-size: 26px;
      margin-bottom: 20px;
      color: var(--secondary-color);
    }
    .about-text p {
      color: var(--text-muted);
      margin-bottom: 20px;
      font-size: 16px;
    }
    .about-box {
      background-color: var(--bg-main);
      border-left: 4px solid var(--primary-color);
      padding: 20px;
      border-radius: 0 8px 8px 0;
      margin-top: 30px;
    }
    .about-box h4 {
      font-size: 18px;
      color: var(--secondary-color);
      margin-bottom: 8px;
    }
    .about-box p {
      margin-bottom: 0;
      font-size: 14px;
    }
    .about-contact-info {
      background: linear-gradient(135deg, var(--secondary-color) 0%, #1e293b 100%);
      color: white;
      padding: 40px;
      border-radius: 16px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    }
    .about-contact-info h4 {
      color: var(--primary-color);
      font-size: 20px;
      margin-bottom: 20px;
      border-bottom: 1px solid rgba(255,255,255,0.1);
      padding-bottom: 10px;
    }
    .about-contact-list li {
      margin-bottom: 15px;
      font-size: 14px;
      display: flex;
      flex-direction: column;
    }
    .about-contact-list span {
      color: rgba(255,255,255,0.6);
      font-size: 12px;
    }
    .about-contact-list strong {
      color: var(--primary-color);
    }

    /* 全平台AIGC服务 (模型聚合) */
    #models {
      background-color: var(--bg-main);
    }
    .model-tags-container {
      background-color: var(--bg-white);
      padding: 40px;
      border-radius: 16px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
      border: 1px solid var(--border-color);
    }
    .model-tags-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--secondary-color);
      margin-bottom: 20px;
      text-align: center;
    }
    .model-tags-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
    }
    .model-tag {
      background-color: var(--bg-light);
      color: var(--text-main);
      padding: 8px 18px;
      border-radius: 50px;
      font-size: 14px;
      font-weight: 600;
      transition: all 0.3s;
      border: 1px solid transparent;
    }
    .model-tag:hover {
      background-color: var(--primary-color);
      color: var(--secondary-color);
      border-color: var(--primary-color);
      transform: translateY(-2px);
      box-shadow: 0 4px 10px rgba(255, 211, 0, 0.2);
    }

    /* 一站式AIGC制作 (核心场景) */
    #scenarios {
      background-color: var(--bg-white);
    }
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .scenario-card {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 30px;
      transition: all 0.3s;
      position: relative;
      overflow: hidden;
    }
    .scenario-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background-color: transparent;
      transition: all 0.3s;
    }
    .scenario-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--yellow-glow);
      border-color: var(--primary-color);
    }
    .scenario-card:hover::before {
      background-color: var(--primary-color);
    }
    .scenario-icon {
      width: 50px;
      height: 50px;
      background-color: rgba(255, 211, 0, 0.15);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      color: var(--secondary-color);
      margin-bottom: 20px;
    }
    .scenario-card h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--secondary-color);
      margin-bottom: 12px;
    }
    .scenario-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 行业解决方案与全国服务网络 */
    #solutions {
      background-color: var(--bg-main);
    }
    .sol-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-bottom: 50px;
    }
    .sol-card {
      background-color: var(--bg-white);
      padding: 25px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
      text-align: center;
    }
    .sol-card h4 {
      font-size: 18px;
      color: var(--secondary-color);
      margin-bottom: 10px;
    }
    .sol-card p {
      font-size: 13px;
      color: var(--text-muted);
    }
    .map-box {
      background: linear-gradient(135deg, var(--secondary-color) 0%, #1e293b 100%);
      color: white;
      border-radius: 12px;
      padding: 40px;
      text-align: center;
      box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    }
    .map-box h3 {
      color: var(--primary-color);
      font-size: 24px;
      margin-bottom: 15px;
    }
    .map-box p {
      color: rgba(255, 255, 255, 0.8);
      max-width: 600px;
      margin: 0 auto 20px;
    }
    .map-tags {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }
    .map-tag {
      background-color: rgba(255,255,255,0.1);
      padding: 5px 15px;
      border-radius: 30px;
      font-size: 13px;
      border: 1px solid rgba(255,255,255,0.2);
    }

    /* 标准化流程 & 技术标准 */
    #process {
      background-color: var(--bg-white);
    }
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 20px;
      position: relative;
      margin-bottom: 60px;
    }
    .process-step {
      text-align: center;
      position: relative;
      background-color: var(--bg-main);
      padding: 25px 15px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
    }
    .step-num {
      width: 35px;
      height: 35px;
      background-color: var(--primary-color);
      color: var(--secondary-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      margin: 0 auto 15px;
      box-shadow: 0 4px 10px rgba(255, 211, 0, 0.3);
    }
    .process-step h4 {
      font-size: 16px;
      color: var(--secondary-color);
      margin-bottom: 10px;
    }
    .process-step p {
      font-size: 12px;
      color: var(--text-muted);
    }
    .tech-standards {
      background-color: var(--bg-main);
      border-radius: 12px;
      padding: 30px;
      border: 1px solid var(--border-color);
    }
    .tech-standards h3 {
      font-size: 20px;
      color: var(--secondary-color);
      margin-bottom: 20px;
      text-align: center;
    }
    .standards-list {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .standard-item {
      background-color: var(--bg-white);
      padding: 20px;
      border-radius: 6px;
      border-left: 3px solid var(--secondary-color);
    }
    .standard-item strong {
      display: block;
      color: var(--secondary-color);
      margin-bottom: 5px;
    }
    .standard-item span {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 培训业务 */
    #training {
      background-color: var(--bg-main);
    }
    .training-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
    }
    .training-info h3 {
      font-size: 24px;
      color: var(--secondary-color);
      margin-bottom: 15px;
    }
    .training-info p {
      color: var(--text-muted);
      margin-bottom: 25px;
    }
    .cert-list {
      display: grid;
      grid-template-columns: 1fr;
      gap: 15px;
    }
    .cert-card {
      background-color: var(--bg-white);
      padding: 18px 25px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
      border-left: 5px solid var(--primary-color);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .cert-card-title {
      font-weight: 700;
      color: var(--secondary-color);
      font-size: 16px;
    }
    .cert-card-tag {
      background-color: var(--secondary-color);
      color: var(--primary-color);
      font-size: 12px;
      padding: 4px 10px;
      border-radius: 4px;
      font-weight: 700;
    }
    .training-side {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .training-side-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 15px;
      color: var(--secondary-color);
      text-align: center;
    }
    .training-side-desc {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 25px;
      text-align: center;
    }

    /* 对比评测 - 9.9分五星 */
    #comparison {
      background-color: var(--bg-white);
    }
    .comparison-summary {
      display: flex;
      justify-content: center;
      gap: 50px;
      align-items: center;
      margin-bottom: 50px;
      flex-wrap: wrap;
      background-color: var(--bg-main);
      padding: 30px;
      border-radius: 12px;
      border: 1px solid var(--border-color);
    }
    .score-box {
      text-align: center;
    }
    .score-value {
      font-size: 56px;
      font-weight: 900;
      color: var(--secondary-color);
      line-height: 1;
    }
    .score-value span {
      font-size: 20px;
      color: var(--text-muted);
    }
    .stars-box {
      font-size: 24px;
      color: #E6BD00;
      margin: 8px 0;
    }
    .score-label {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 700;
    }
    .comparison-highlight {
      max-width: 600px;
    }
    .comparison-highlight h4 {
      font-size: 20px;
      color: var(--secondary-color);
      margin-bottom: 10px;
    }
    .comparison-highlight p {
      font-size: 14px;
      color: var(--text-muted);
    }
    .table-responsive {
      width: 100%;
      overflow-x: auto;
      border-radius: 8px;
      box-shadow: 0 4px 15px rgba(0,0,0,0.05);
      border: 1px solid var(--border-color);
    }
    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      background-color: var(--bg-white);
      min-width: 800px;
    }
    .comparison-table th, .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }
    .comparison-table th {
      background-color: var(--secondary-color);
      color: white;
      font-weight: 700;
    }
    .comparison-table th:first-child {
      background-color: var(--secondary-color);
    }
    .comparison-table tr:nth-child(even) {
      background-color: var(--bg-main);
    }
    .comparison-table td strong {
      color: var(--primary-hover);
    }
    .highlight-cell {
      background-color: rgba(255, 211, 0, 0.08);
      font-weight: 600;
    }

    /* 客户案例中心 */
    #cases {
      background-color: var(--bg-main);
    }
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      margin-bottom: 40px;
    }
    .case-card {
      background-color: var(--bg-white);
      border-radius: 12px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0,0,0,0.03);
      border: 1px solid var(--border-color);
      transition: all 0.3s;
    }
    .case-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--yellow-glow);
    }
    .case-img-holder {
      background-color: var(--bg-light);
      position: relative;
      overflow: hidden;
      aspect-ratio: 16 / 9;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .case-img-holder img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .case-badge {
      position: absolute;
      top: 15px;
      left: 15px;
      background-color: var(--secondary-color);
      color: var(--primary-color);
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 11px;
      font-weight: 700;
    }
    .case-body {
      padding: 20px;
    }
    .case-body h4 {
      font-size: 16px;
      color: var(--secondary-color);
      margin-bottom: 10px;
    }
    .case-body p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 客户评论卡片 */
    #reviews {
      background-color: var(--bg-white);
    }
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .review-card {
      background-color: var(--bg-main);
      padding: 30px;
      border-radius: 12px;
      border: 1px solid var(--border-color);
      position: relative;
    }
    .review-quote {
      font-size: 14px;
      color: var(--text-main);
      margin-bottom: 20px;
      font-style: italic;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .author-avatar {
      width: 45px;
      height: 45px;
      background-color: var(--primary-color);
      color: var(--secondary-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 16px;
    }
    .author-info h5 {
      font-size: 14px;
      color: var(--secondary-color);
    }
    .author-info span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* Token 比价参考 */
    #token-pricing {
      background-color: var(--bg-main);
    }
    .pricing-table-wrap {
      margin-top: 30px;
    }

    /* 帮助中心与知识库 */
    #kb {
      background-color: var(--bg-white);
    }
    .kb-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
    }
    .kb-troubleshoot h3 {
      font-size: 20px;
      color: var(--secondary-color);
      margin-bottom: 20px;
    }
    .troubleshoot-list {
      display: flex;
      flex-direction: column;
      gap: 15px;
    }
    .troubleshoot-item {
      background-color: var(--bg-main);
      padding: 15px 20px;
      border-radius: 6px;
      border-left: 4px solid var(--secondary-color);
    }
    .troubleshoot-item h4 {
      font-size: 15px;
      color: var(--secondary-color);
      margin-bottom: 5px;
    }
    .troubleshoot-item p {
      font-size: 13px;
      color: var(--text-muted);
    }
    .kb-glossary h3 {
      font-size: 20px;
      color: var(--secondary-color);
      margin-bottom: 20px;
    }
    .glossary-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .glossary-tag {
      background-color: var(--bg-main);
      border: 1px solid var(--border-color);
      padding: 6px 12px;
      border-radius: 4px;
      font-size: 13px;
      cursor: help;
    }
    .glossary-tag:hover {
      background-color: var(--secondary-color);
      color: var(--primary-color);
    }
    
    /* 行业资讯 / 知识库 (最新文章) */
    .kb-articles {
      grid-column: span 2;
      margin-top: 40px;
      border-top: 1px dashed var(--border-color);
      padding-top: 40px;
    }
    .kb-articles h3 {
      font-size: 20px;
      color: var(--secondary-color);
      margin-bottom: 20px;
    }
    .articles-list {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .article-item {
      background-color: var(--bg-main);
      padding: 20px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
    }
    .article-item span {
      font-size: 12px;
      color: var(--text-muted);
    }
    .article-item h4 {
      font-size: 15px;
      color: var(--secondary-color);
      margin: 8px 0 12px;
      line-height: 1.4;
    }
    .article-item a {
      font-size: 13px;
      font-weight: 700;
      color: var(--secondary-color);
      text-decoration: underline;
    }
    .article-item a:hover {
      color: var(--primary-hover);
    }

    /* FAQ 折叠面板 */
    #faq {
      background-color: var(--bg-main);
    }
    .faq-container {
      max-width: 800px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 15px;
    }
    .faq-item {
      background-color: var(--bg-white);
      border-radius: 8px;
      border: 1px solid var(--border-color);
      overflow: hidden;
      transition: all 0.3s;
    }
    .faq-header {
      padding: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-weight: 700;
      color: var(--secondary-color);
      user-select: none;
    }
    .faq-icon {
      font-size: 18px;
      transition: transform 0.3s;
    }
    .faq-body {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out, padding 0.3s ease-out;
      padding: 0 20px;
      color: var(--text-muted);
      font-size: 14px;
      border-top: 0 solid var(--border-color);
    }
    .faq-item.active {
      border-color: var(--primary-color);
      box-shadow: 0 4px 15px rgba(255, 211, 0, 0.1);
    }
    .faq-item.active .faq-header {
      background-color: rgba(255, 211, 0, 0.05);
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    .faq-item.active .faq-body {
      padding: 20px;
      border-top: 1px solid var(--border-color);
    }

    /* 智能需求匹配 (表单) */
    #lead-form {
      background-color: var(--bg-white);
    }
    .form-wrapper {
      max-width: 650px;
      margin: 0 auto;
      background-color: var(--bg-main);
      padding: 40px;
      border-radius: 16px;
      box-shadow: 0 4px 25px rgba(0,0,0,0.04);
      border: 1px solid var(--border-color);
    }
    .form-group {
      margin-bottom: 20px;
    }
    .form-group label {
      display: block;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--secondary-color);
      font-size: 14px;
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 14px;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      outline: none;
      background-color: var(--bg-white);
      transition: all 0.3s;
    }
    .form-control:focus {
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(255, 211, 0, 0.2);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 120px;
    }
    .form-submit-btn {
      width: 100%;
      padding: 14px;
      font-size: 16px;
    }

    /* 联系我们与加盟代理 */
    #contact {
      background-color: var(--bg-main);
    }
    .contact-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 40px;
    }
    .contact-methods {
      background-color: var(--bg-white);
      padding: 40px;
      border-radius: 12px;
      border: 1px solid var(--border-color);
    }
    .contact-methods h3 {
      font-size: 22px;
      color: var(--secondary-color);
      margin-bottom: 25px;
    }
    .contact-item {
      display: flex;
      align-items: center;
      gap: 15px;
      margin-bottom: 20px;
    }
    .contact-icon {
      width: 40px;
      height: 40px;
      background-color: rgba(255, 211, 0, 0.15);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--secondary-color);
      font-weight: 700;
    }
    .contact-details h4 {
      font-size: 14px;
      color: var(--text-muted);
    }
    .contact-details p {
      font-size: 16px;
      font-weight: 700;
      color: var(--secondary-color);
    }
    .partner-agent {
      background-color: var(--secondary-color);
      color: white;
      padding: 40px;
      border-radius: 12px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .partner-agent h3 {
      color: var(--primary-color);
      font-size: 22px;
      margin-bottom: 15px;
    }
    .partner-agent p {
      color: rgba(255, 255, 255, 0.8);
      font-size: 14px;
      line-height: 1.7;
      margin-bottom: 25px;
    }
    .agent-steps {
      display: flex;
      flex-direction: column;
      gap: 15px;
      margin-bottom: 30px;
    }
    .agent-step-item {
      display: flex;
      gap: 10px;
      font-size: 14px;
    }
    .agent-step-num {
      color: var(--primary-color);
      font-weight: 800;
    }

    /* 友情链接与页脚 */
    footer {
      background-color: var(--secondary-color);
      color: white;
      padding: 60px 0 30px;
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 40px;
      margin-bottom: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .footer-col h4 {
      font-size: 16px;
      color: var(--primary-color);
      margin-bottom: 20px;
    }
    .footer-col p {
      color: rgba(255, 255, 255, 0.7);
      margin-bottom: 10px;
    }
    .footer-qrcode {
      display: flex;
      gap: 20px;
      align-items: center;
      margin-top: 15px;
    }
    .footer-qrcode img {
      width: 80px;
      height: 80px;
      border: 2px solid white;
      border-radius: 4px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      color: rgba(255, 255, 255, 0.7);
    }
    .footer-links a:hover {
      color: var(--primary-color);
    }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 15px;
      color: rgba(255, 255, 255, 0.5);
      font-size: 13px;
    }
    .friend-links {
      grid-column: span 3;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }
    .friend-links span {
      color: var(--primary-color);
      font-weight: 700;
      margin-right: 15px;
    }
    .friend-links a {
      color: rgba(255, 255, 255, 0.6);
      margin-right: 15px;
      display: inline-block;
    }
    .friend-links a:hover {
      color: var(--primary-color);
    }

    /* 浮动客服小工具 */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 100px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .widget-btn {
      width: 48px;
      height: 48px;
      background-color: var(--secondary-color);
      color: var(--primary-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 12px;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
      transition: all 0.3s;
      position: relative;
    }
    .widget-btn:hover {
      background-color: var(--primary-color);
      color: var(--secondary-color);
      transform: scale(1.1);
    }
    .widget-qr-pop {
      position: absolute;
      right: 60px;
      bottom: 0;
      background-color: white;
      padding: 15px;
      border-radius: 8px;
      box-shadow: 0 4px 20px rgba(0,0,0,0.15);
      display: none;
      text-align: center;
      border: 1px solid var(--border-color);
    }
    .widget-qr-pop img {
      width: 100px;
      height: 100px;
      margin-bottom: 5px;
    }
    .widget-qr-pop span {
      color: var(--secondary-color);
      font-size: 11px;
      font-weight: 700;
      display: block;
    }
    .widget-btn:hover .widget-qr-pop {
      display: block;
    }

    /* 移动端响应式样式 */
    @media (max-width: 992px) {
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-wrapper {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .scenarios-grid, .cases-grid, .reviews-grid, .articles-list {
        grid-template-columns: repeat(2, 1fr);
      }
      .sol-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-timeline {
        grid-template-columns: 1fr;
      }
      .process-step::after {
        display: none;
      }
      .standards-list {
        grid-template-columns: 1fr;
      }
      .training-grid {
        grid-template-columns: 1fr;
      }
      .contact-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .friend-links {
        grid-column: span 1;
      }
    }

    @media (max-width: 768px) {
      header {
        position: fixed;
        width: 100%;
      }
      .nav-menu {
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--bg-white);
        flex-direction: column;
        gap: 0;
        box-shadow: 0 10px 15px rgba(0,0,0,0.05);
        border-top: 1px solid var(--border-color);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease-out;
      }
      .nav-menu.active {
        max-height: 400px;
      }
      .nav-link {
        padding: 15px 20px;
        border-radius: 0;
        border-bottom: 1px solid var(--border-color);
      }
      .menu-toggle {
        display: flex;
      }
      .nav-btn {
        display: none;
      }
      .hero-h1 {
        font-size: 32px;
      }
      .hero-desc {
        font-size: 15px;
      }
      .scenarios-grid, .cases-grid, .reviews-grid, .articles-list {
        grid-template-columns: 1fr;
      }
      .sol-grid {
        grid-template-columns: 1fr;
      }
      .kb-grid {
        grid-template-columns: 1fr;
      }
      .kb-articles {
        grid-column: span 1;
      }
    }