/* 全局重置与基础样式 */
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
      color: #1e293b;
      background-color: #f8fafc;
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
    }

    /* 容器设计 */
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 配色方案 (宝蓝明艳风) */
    :root {
      --primary: #0052cc;
      --primary-dark: #0f4c81;
      --accent: #00e676;
      --accent-orange: #ff9100;
      --text-dark: #0f172a;
      --text-light: #64748b;
      --bg-light: #f8fafc;
      --bg-white: #ffffff;
      --border-color: #e2e8f0;
      --card-shadow: 0 10px 30px -10px rgba(0, 82, 204, 0.08);
      --transition: all 0.3s ease;
    }

    /* 标题样式 */
    h1, h2, h3, h4 {
      color: var(--text-dark);
      font-weight: 700;
    }

    .section-title {
      font-size: 2.2rem;
      text-align: center;
      margin-bottom: 15px;
      color: var(--primary-dark);
      position: relative;
    }

    .section-title::after {
      content: '';
      display: block;
      width: 60px;
      height: 4px;
      background: var(--primary);
      margin: 10px auto 0;
      border-radius: 2px;
    }

    .section-subtitle {
      text-align: center;
      color: var(--text-light);
      max-width: 700px;
      margin: 0 auto 50px;
      font-size: 1.1rem;
    }

    /* 按钮样式 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 30px;
      border-radius: 8px;
      font-weight: 600;
      text-decoration: none;
      transition: var(--transition);
      cursor: pointer;
      border: none;
      font-size: 1rem;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(0, 82, 204, 0.4);
    }

    .btn-primary:hover {
      background-color: var(--primary-dark);
      transform: translateY(-2px);
    }

    .btn-accent {
      background-color: var(--accent-orange);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(255, 145, 0, 0.4);
    }

    .btn-accent:hover {
      background-color: #e07f00;
      transform: translateY(-2px);
    }

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

    .btn-outline:hover {
      background-color: var(--primary);
      color: #ffffff;
      transform: translateY(-2px);
    }

    /* 顶部导航 */
    header {
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      box-shadow: 0 2px 20px rgba(0,0,0,0.05);
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid var(--border-color);
    }

    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 80px;
    }

    .logo-area {
      display: flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
    }

    .ai-page-logo {
      height: 45px;
      width: auto;
    }

    .brand-name {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--primary-dark);
    }

    .nav-menu {
      display: flex;
      list-style: none;
      gap: 25px;
      margin: 0;
    }

    .nav-link {
      text-decoration: none;
      color: var(--text-dark);
      font-weight: 500;
      transition: var(--transition);
      font-size: 0.95rem;
    }

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

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

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

    /* Hero首屏 - 纯代码视觉，无图 */
    .hero-section {
      background: radial-gradient(circle at 70% 30%, rgba(0, 82, 204, 0.08) 0%, rgba(255, 255, 255, 0) 70%), 
                  linear-gradient(135deg, #0f172a 0%, #0f2c59 100%);
      color: #ffffff;
      padding: 100px 0 120px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    /* 网格装饰线 */
    .hero-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
      background-size: 40px 40px;
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 10;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-block;
      background: rgba(0, 230, 118, 0.15);
      border: 1px solid var(--accent);
      color: var(--accent);
      padding: 6px 18px;
      border-radius: 30px;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 25px;
      animation: pulse 2s infinite;
    }

    .hero-title {
      font-size: 3rem;
      line-height: 1.25;
      margin-bottom: 25px;
      color: #ffffff;
    }

    .hero-desc {
      font-size: 1.25rem;
      color: #cbd5e1;
      margin-bottom: 40px;
      line-height: 1.8;
    }

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

    .hero-btns .btn {
      min-width: 160px;
    }

    /* 数据指标卡片 */
    .stats-section {
      margin-top: -60px;
      position: relative;
      z-index: 20;
      padding-bottom: 60px;
    }

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

    .stat-card {
      background-color: var(--bg-white);
      border-radius: 12px;
      padding: 30px 20px;
      text-align: center;
      box-shadow: 0 15px 35px rgba(15, 23, 42, 0.08);
      border: 1px solid var(--border-color);
      transition: var(--transition);
    }

    .stat-card:hover {
      transform: translateY(-5px);
      border-color: var(--primary);
    }

    .stat-num {
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 5px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .stat-label {
      color: var(--text-dark);
      font-weight: 600;
      font-size: 1rem;
      margin-bottom: 5px;
    }

    .stat-desc {
      font-size: 0.85rem;
      color: var(--text-light);
    }

    /* 关于我们 & 平台介绍 */
    .about-section {
      padding: 80px 0;
      background-color: var(--bg-white);
    }

    .about-layout {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 60px;
      align-items: center;
    }

    .about-text h3 {
      font-size: 1.8rem;
      margin-bottom: 20px;
      color: var(--primary-dark);
    }

    .about-p {
      color: var(--text-light);
      margin-bottom: 20px;
      font-size: 1.05rem;
      line-height: 1.8;
    }

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

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

    .about-features li::before {
      content: '✓';
      position: absolute;
      left: 0;
      color: var(--accent);
      font-weight: bold;
      font-size: 1.1rem;
    }

    .about-img-wrapper {
      position: relative;
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    }

    .about-img-wrapper img {
      width: 100%;
      display: block;
      transition: var(--transition);
    }

    .about-img-wrapper:hover img {
      transform: scale(1.03);
    }

    /* 全平台 AIGC 服务 */
    .services-section {
      padding: 80px 0;
      background-color: var(--bg-light);
    }

    .model-tag-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px;
      margin-bottom: 50px;
      max-width: 1000px;
      margin-left: auto;
      margin-right: auto;
    }

    .model-tag {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: 30px;
      padding: 8px 18px;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-dark);
      box-shadow: 0 2px 5px rgba(0,0,0,0.02);
      transition: var(--transition);
    }

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

    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .service-card {
      background-color: var(--bg-white);
      border-radius: 16px;
      padding: 40px 30px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background-color: var(--primary);
      transform: scaleX(0);
      transform-origin: left;
      transition: var(--transition);
    }

    .service-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 20px 40px rgba(0, 82, 204, 0.12);
    }

    .service-card:hover::before {
      transform: scaleX(1);
    }

    .service-icon {
      width: 60px;
      height: 60px;
      background-color: rgba(0, 82, 204, 0.08);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 25px;
      color: var(--primary);
      font-size: 1.8rem;
    }

    .service-card h3 {
      font-size: 1.4rem;
      margin-bottom: 15px;
    }

    .service-card p {
      color: var(--text-light);
      font-size: 0.95rem;
      margin-bottom: 20px;
    }

    .service-link {
      color: var(--primary);
      text-decoration: none;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 5px;
      font-size: 0.95rem;
    }

    /* 一站式AIGC制作 - 图文混排 */
    .production-section {
      padding: 80px 0;
      background-color: var(--bg-white);
    }

    .scene-row {
      display: flex;
      align-items: center;
      gap: 60px;
      margin-bottom: 80px;
    }

    .scene-row:nth-child(even) {
      flex-direction: row-reverse;
    }

    .scene-row:last-child {
      margin-bottom: 0;
    }

    .scene-media {
      flex: 1;
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 15px 35px rgba(0,0,0,0.08);
    }

    .scene-media img {
      width: 100%;
      display: block;
    }

    .scene-info {
      flex: 1;
    }

    .scene-badge {
      display: inline-block;
      background-color: rgba(0, 82, 204, 0.08);
      color: var(--primary);
      padding: 4px 12px;
      border-radius: 4px;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 15px;
    }

    .scene-info h3 {
      font-size: 1.8rem;
      margin-bottom: 20px;
    }

    .scene-features {
      margin: 20px 0 30px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .scene-feat-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.95rem;
      color: var(--text-dark);
      font-weight: 500;
    }

    .scene-feat-item svg {
      color: var(--accent);
      flex-shrink: 0;
    }

    /* 行业解决方案 & 服务网络 */
    .solutions-section {
      padding: 80px 0;
      background-color: var(--bg-light);
    }

    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-bottom: 60px;
    }

    .solution-card {
      background-color: var(--bg-white);
      border-radius: 12px;
      padding: 30px 20px;
      border: 1px solid var(--border-color);
      transition: var(--transition);
    }

    .solution-card:hover {
      box-shadow: var(--card-shadow);
      border-color: var(--primary);
    }

    .solution-title {
      font-size: 1.2rem;
      margin-bottom: 12px;
      color: var(--primary-dark);
    }

    .solution-desc {
      font-size: 0.9rem;
      color: var(--text-light);
    }

    .network-box {
      background: linear-gradient(135deg, var(--primary-dark) 0%, #082f5c 100%);
      color: #ffffff;
      border-radius: 16px;
      padding: 40px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 40px;
    }

    .network-info h4 {
      color: #ffffff;
      font-size: 1.6rem;
      margin-bottom: 10px;
    }

    .network-info p {
      color: #cbd5e1;
    }

    .network-stats {
      display: flex;
      gap: 40px;
    }

    .network-stat-item {
      text-align: center;
    }

    .network-stat-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--accent);
    }

    .network-stat-lbl {
      color: #e2e8f0;
      font-size: 0.9rem;
    }

    /* 流程与技术标准 */
    .process-section {
      padding: 80px 0;
      background-color: var(--bg-white);
    }

    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      position: relative;
      margin-bottom: 60px;
    }

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

    .step-num {
      width: 50px;
      height: 50px;
      background-color: var(--primary);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.2rem;
      margin: 0 auto 20px;
      border: 4px solid var(--bg-white);
      box-shadow: 0 0 0 2px var(--primary);
    }

    .process-step h4 {
      font-size: 1.1rem;
      margin-bottom: 10px;
    }

    .process-step p {
      font-size: 0.9rem;
      color: var(--text-light);
    }

    /* 技术指标面板 */
    .tech-standards {
      background-color: var(--bg-light);
      border-radius: 12px;
      padding: 30px;
      border: 1px solid var(--border-color);
    }

    .tech-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .tech-item h5 {
      font-size: 1rem;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .tech-item p {
      font-size: 0.9rem;
      color: var(--text-light);
    }

    /* 对比评测板块 */
    .evaluation-section {
      padding: 80px 0;
      background-color: var(--bg-white);
    }

    .eval-overview {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 50px;
      margin-bottom: 50px;
      background-color: var(--bg-light);
      padding: 30px;
      border-radius: 16px;
      border: 1px solid var(--border-color);
    }

    .eval-score-card {
      text-align: center;
      padding-right: 50px;
      border-right: 1px solid var(--border-color);
    }

    .eval-rating {
      font-size: 1.5rem;
      color: var(--accent-orange);
      margin-bottom: 5px;
    }

    .eval-score {
      font-size: 3.5rem;
      font-weight: 900;
      color: var(--primary-dark);
      line-height: 1;
      margin-bottom: 8px;
    }

    .eval-stars {
      color: #fbbf24;
      font-size: 1.4rem;
      letter-spacing: 2px;
    }

    .eval-summary {
      max-width: 600px;
    }

    .eval-summary h4 {
      font-size: 1.3rem;
      margin-bottom: 10px;
    }

    .eval-summary p {
      color: var(--text-light);
      font-size: 0.95rem;
    }

    /* 对比表格 */
    .table-container {
      width: 100%;
      overflow-x: auto;
      border-radius: 12px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
    }

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

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

    .comparison-table th {
      background-color: #f1f5f9;
      font-weight: 700;
      color: var(--text-dark);
    }

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

    .comparison-table td:first-child {
      font-weight: 600;
    }

    .comparison-table .highlight-col {
      background-color: rgba(0, 82, 204, 0.02);
    }

    .comparison-table th.highlight-col {
      background-color: rgba(0, 82, 204, 0.06);
      color: var(--primary);
    }

    .tag-yes {
      display: inline-block;
      background-color: rgba(0, 230, 118, 0.15);
      color: #00c853;
      padding: 2px 10px;
      border-radius: 4px;
      font-size: 0.85rem;
      font-weight: 600;
    }

    .tag-no {
      display: inline-block;
      background-color: #ffebee;
      color: #c62828;
      padding: 2px 10px;
      border-radius: 4px;
      font-size: 0.85rem;
      font-weight: 600;
    }

    /* Token比价参考 */
    .token-price-section {
      padding: 80px 0;
      background-color: var(--bg-light);
    }

    .price-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .price-card {
      background-color: var(--bg-white);
      border-radius: 12px;
      border: 1px solid var(--border-color);
      overflow: hidden;
      transition: var(--transition);
    }

    .price-card:hover {
      box-shadow: var(--card-shadow);
      transform: translateY(-5px);
    }

    .price-header {
      background-color: var(--primary-dark);
      color: #ffffff;
      padding: 20px;
      text-align: center;
    }

    .price-header h4 {
      color: #ffffff;
      font-size: 1.2rem;
    }

    .price-cost {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--accent);
      margin-top: 5px;
    }

    .price-cost span {
      font-size: 0.9rem;
      color: #cbd5e1;
      font-weight: 400;
    }

    .price-body {
      padding: 25px;
    }

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

    .price-list li {
      display: flex;
      justify-content: space-between;
      padding: 10px 0;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.9rem;
    }

    .price-list li:last-child {
      border-bottom: none;
    }

    .price-list span:first-child {
      color: var(--text-light);
    }

    .price-list span:last-child {
      font-weight: 600;
    }

    /* 人工智能与职业技术培训 */
    .training-section {
      padding: 80px 0;
      background-color: var(--bg-white);
    }

    .training-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 15px;
    }

    .training-card {
      background-color: var(--bg-light);
      border-radius: 12px;
      padding: 25px 20px;
      text-align: center;
      border: 1px solid var(--border-color);
      transition: var(--transition);
    }

    .training-card:hover {
      background-color: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
      transform: translateY(-5px);
    }

    .training-card:hover h4, .training-card:hover p {
      color: #ffffff;
    }

    .training-card h4 {
      font-size: 1.05rem;
      margin-bottom: 10px;
      transition: var(--transition);
    }

    .training-card p {
      font-size: 0.85rem;
      color: var(--text-light);
      transition: var(--transition);
    }

    /* 客户案例中心 */
    .cases-section {
      padding: 80px 0;
      background-color: var(--bg-light);
    }

    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .case-card {
      background-color: var(--bg-white);
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 10px 25px rgba(0,0,0,0.05);
      transition: var(--transition);
    }

    .case-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    }

    .case-img-container {
      position: relative;
      aspect-ratio: 16/10;
      overflow: hidden;
    }

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

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

    .case-content {
      padding: 25px;
    }

    .case-tag {
      font-size: 0.8rem;
      background-color: rgba(0, 82, 204, 0.08);
      color: var(--primary);
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

    .case-content h4 {
      font-size: 1.2rem;
      margin: 10px 0;
    }

    .case-content p {
      color: var(--text-light);
      font-size: 0.9rem;
      margin-bottom: 15px;
    }

    /* 客户评论（6条） */
    .testimonials-section {
      padding: 80px 0;
      background-color: var(--bg-white);
    }

    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .testimonial-card {
      background-color: var(--bg-light);
      border-radius: 12px;
      padding: 30px;
      border: 1px solid var(--border-color);
      position: relative;
    }

    .testimonial-stars {
      color: #fbbf24;
      margin-bottom: 15px;
    }

    .testimonial-text {
      font-size: 0.95rem;
      color: var(--text-dark);
      margin-bottom: 20px;
      font-style: italic;
    }

    .testimonial-user {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .user-avatar-placeholder {
      width: 45px;
      height: 45px;
      background-color: var(--primary);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
    }

    .user-info h5 {
      font-size: 0.95rem;
      margin: 0;
    }

    .user-info p {
      font-size: 0.8rem;
      color: var(--text-light);
      margin: 0;
    }

    /* 智能需求匹配 (交互计算小部件) */
    .matcher-section {
      padding: 80px 0;
      background-color: var(--bg-light);
    }

    .matcher-container {
      max-width: 800px;
      margin: 0 auto;
      background-color: var(--bg-white);
      border-radius: 16px;
      padding: 40px;
      box-shadow: var(--card-shadow);
      border: 1px solid var(--border-color);
    }

    .matcher-step-title {
      font-size: 1.2rem;
      margin-bottom: 15px;
      font-weight: 600;
    }

    .matcher-options {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 15px;
      margin-bottom: 30px;
    }

    .matcher-btn {
      background-color: var(--bg-light);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 15px;
      text-align: center;
      cursor: pointer;
      font-weight: 600;
      transition: var(--transition);
    }

    .matcher-btn:hover, .matcher-btn.active {
      background-color: rgba(0, 82, 204, 0.08);
      border-color: var(--primary);
      color: var(--primary);
    }

    .matcher-result {
      background-color: #f0fdf4;
      border: 1px dashed #22c55e;
      border-radius: 8px;
      padding: 20px;
      margin-top: 25px;
      display: none;
    }

    .matcher-result h5 {
      color: #15803d;
      font-size: 1.1rem;
      margin-bottom: 5px;
    }

    /* 行业资讯 & 知识库 */
    .articles-section {
      padding: 80px 0;
      background-color: var(--bg-white);
    }

    .articles-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
      margin-bottom: 40px;
    }

    .article-card {
      display: flex;
      gap: 20px;
      background-color: var(--bg-light);
      padding: 20px;
      border-radius: 12px;
      border: 1px solid var(--border-color);
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }

    .article-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--card-shadow);
      border-color: var(--primary);
    }

    .article-thumb {
      width: 120px;
      height: 90px;
      background-color: #e2e8f0;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--text-light);
      flex-shrink: 0;
    }

    .article-details {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .article-details h4 {
      font-size: 1.05rem;
      margin-bottom: 8px;
      line-height: 1.4;
    }

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

    .external-articles {
      background-color: var(--bg-light);
      border-radius: 12px;
      padding: 25px;
      border: 1px solid var(--border-color);
    }

    .ext-art-title {
      font-size: 1.1rem;
      margin-bottom: 15px;
      color: var(--primary-dark);
    }

    .ext-art-links {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }

    .ext-art-links a {
      color: var(--primary);
      text-decoration: none;
      font-size: 0.9rem;
      display: flex;
      align-items: center;
      gap: 5px;
    }

    .ext-art-links a:hover {
      text-decoration: underline;
    }

    /* FAQ 常见用户问题 */
    .faq-section {
      padding: 80px 0;
      background-color: var(--bg-light);
    }

    .faq-tabs {
      display: flex;
      justify-content: center;
      gap: 15px;
      margin-bottom: 30px;
    }

    .faq-tab-btn {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: 30px;
      padding: 8px 20px;
      cursor: pointer;
      font-weight: 600;
      transition: var(--transition);
    }

    .faq-tab-btn.active {
      background-color: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
    }

    .faq-container {
      max-width: 800px;
      margin: 0 auto;
    }

    .faq-item {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-header {
      padding: 20px;
      background: none;
      border: none;
      width: 100%;
      text-align: left;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-dark);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .faq-icon {
      transition: transform 0.3s ease;
      font-size: 1.2rem;
    }

    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background-color: #fafafa;
    }

    .faq-inner {
      padding: 20px;
      border-top: 1px solid var(--border-color);
      color: var(--text-light);
      font-size: 0.95rem;
    }

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

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

    /* 常见问题自助排查 & AI术语百科 */
    .self-help-box {
      margin-top: 40px;
      background-color: var(--bg-white);
      border-radius: 12px;
      padding: 30px;
      border: 1px solid var(--border-color);
    }

    .self-help-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }

    .self-help-col h4 {
      font-size: 1.15rem;
      margin-bottom: 15px;
      color: var(--primary-dark);
    }

    .self-help-list {
      list-style: none;
    }

    .self-help-list li {
      margin-bottom: 10px;
      font-size: 0.9rem;
    }

    .self-help-list strong {
      color: var(--primary);
    }

    /* 联系我们 & 加盟代理表单 */
    .contact-section {
      padding: 80px 0;
      background-color: var(--bg-white);
    }

    .contact-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 50px;
    }

    .form-wrapper {
      background-color: var(--bg-light);
      border-radius: 16px;
      padding: 40px;
      border: 1px solid var(--border-color);
    }

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

    .form-label {
      display: block;
      margin-bottom: 8px;
      font-weight: 600;
      font-size: 0.95rem;
    }

    .form-control {
      width: 100%;
      padding: 12px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
      font-size: 1rem;
      outline: none;
      transition: var(--transition);
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.15);
    }

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

    /* 微信/QQ客服与多平台展示 */
    .contact-info-panel {
      display: flex;
      flex-direction: column;
      gap: 30px;
    }

    .info-card {
      background-color: var(--bg-light);
      border-radius: 12px;
      padding: 25px;
      border: 1px solid var(--border-color);
    }

    .info-card h4 {
      font-size: 1.15rem;
      margin-bottom: 15px;
      color: var(--primary-dark);
    }

    .qr-row {
      display: flex;
      gap: 20px;
      align-items: center;
    }

    .qr-container {
      width: 100px;
      height: 100px;
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 5px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .qr-container img {
      max-width: 100%;
      max-height: 100%;
    }

    .qr-desc p {
      margin: 2px 0;
      font-size: 0.9rem;
    }

    .direct-contact-list {
      list-style: none;
    }

    .direct-contact-list li {
      margin-bottom: 12px;
      font-size: 0.95rem;
    }

    /* 页脚 */
    footer {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px;
      font-size: 0.9rem;
      border-top: 5px solid var(--primary);
    }

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

    .footer-col h5 {
      color: #ffffff;
      font-size: 1.1rem;
      margin-bottom: 20px;
      position: relative;
    }

    .footer-col h5::after {
      content: '';
      display: block;
      width: 30px;
      height: 2px;
      background-color: var(--primary);
      margin-top: 8px;
    }

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

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

    .footer-links a {
      color: #94a3b8;
      text-decoration: none;
      transition: var(--transition);
    }

    .footer-links a:hover {
      color: #ffffff;
      padding-left: 5px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 15px;
    }

    .friend-links-list a {
      background-color: #1e293b;
      color: #cbd5e1;
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 0.8rem;
      text-decoration: none;
      transition: var(--transition);
    }

    .friend-links-list a:hover {
      background-color: var(--primary);
      color: #ffffff;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
    }

    .footer-copyright p {
      margin: 0;
    }

    /* 浮动客服入口 */
    .float-service {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background-color: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 15px rgba(0,0,0,0.15);
      cursor: pointer;
      text-decoration: none;
      position: relative;
      border: none;
      font-size: 1.2rem;
      transition: var(--transition);
    }

    .float-btn:hover {
      background-color: var(--primary-dark);
      transform: scale(1.05);
    }

    .qr-popover {
      position: absolute;
      bottom: 60px;
      right: 0;
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 15px;
      box-shadow: 0 10px 25px rgba(0,0,0,0.15);
      display: none;
      text-align: center;
      width: 160px;
    }

    .qr-popover img {
      width: 120px;
      height: 120px;
      margin-bottom: 5px;
    }

    .qr-popover p {
      font-size: 0.8rem;
      color: var(--text-dark);
      margin: 0;
    }

    .float-btn:hover .qr-popover {
      display: block;
    }

    /* 动画定义 */
    @keyframes pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.03); }
      100% { transform: scale(1); }
    }

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .services-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .training-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .hero-title {
        font-size: 2.2rem;
      }
      .about-layout {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .scene-row, .scene-row:nth-child(even) {
        flex-direction: column;
        gap: 20px;
      }
      .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .network-box {
        flex-direction: column;
        text-align: center;
      }
      .process-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .tech-grid {
        grid-template-columns: 1fr;
      }
      .eval-overview {
        flex-direction: column;
        gap: 20px;
        text-align: center;
      }
      .eval-score-card {
        padding-right: 0;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 20px;
        width: 100%;
      }
      .price-grid {
        grid-template-columns: 1fr;
      }
      .training-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cases-grid {
        grid-template-columns: 1fr;
      }
      .testimonials-grid {
        grid-template-columns: 1fr;
      }
      .contact-grid {
        grid-template-columns: 1fr;
      }
      .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--bg-white);
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
        border-top: 1px solid var(--border-color);
      }
      .nav-menu.show {
        display: flex;
      }
      .menu-toggle {
        display: block;
      }
      .self-help-grid {
        grid-template-columns: 1fr;
      }
      .ext-art-links {
        grid-template-columns: 1fr;
      }
    }