/* 核心样式变量 - 亮橙炽艳风 */
    :root {
      --primary-color: #FF5500;
      --primary-hover: #E04B00;
      --secondary-color: #FF2200;
      --bg-light: #FAFAFA;
      --bg-white: #FFFFFF;
      --bg-accent: #FFF5F0;
      --text-dark: #1A1A1A;
      --text-muted: #666666;
      --border-color: #EEEEEE;
      --border-orange: #FFE0D0;
      --max-width: 1200px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    /* 基础重置 */
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
      color: var(--text-dark);
      background-color: var(--bg-light);
    }

    body {
      line-height: 1.6;
      overflow-x: hidden;
    }

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

    ul {
      list-style: none;
    }

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

    /* 通用容器与组件 */
    .container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 24px;
      width: 100%;
    }

    .section-padding {
      padding: 80px 0;
    }

    .section-title {
      font-size: 2.2rem;
      text-align: center;
      margin-bottom: 16px;
      color: var(--text-dark);
      font-weight: 700;
      letter-spacing: -0.5px;
    }

    .section-subtitle {
      font-size: 1.1rem;
      text-align: center;
      color: var(--text-muted);
      max-width: 700px;
      margin: 0 auto 50px auto;
      line-height: 1.6;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      border-radius: 8px;
      font-size: 1rem;
      font-weight: 600;
      transition: var(--transition);
      cursor: pointer;
      border: none;
    }

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

    .btn-primary:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(255, 85, 0, 0.2);
    }

    .btn-secondary {
      background-color: var(--bg-white);
      color: var(--primary-color);
      border: 2px solid var(--primary-color);
    }

    .btn-secondary:hover {
      background-color: var(--bg-accent);
      transform: translateY(-2px);
    }

    /* 头部导航 */
    header {
      position: sticky;
      top: 0;
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      z-index: 1000;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
    }

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

    .logo-area {
      display: flex;
      align-items: center;
      gap: 12px;
    }

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

    .brand-name {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--text-dark);
      letter-spacing: -0.5px;
    }

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

    .nav-menu {
      display: flex;
      gap: 24px;
      align-items: center;
    }

    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-dark);
    }

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

    .nav-btn {
      padding: 8px 20px;
      font-size: 0.9rem;
    }

    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 6px;
      cursor: pointer;
      border: none;
      background: none;
    }

    .menu-toggle span {
      display: block;
      width: 25px;
      height: 3px;
      background-color: var(--text-dark);
      transition: var(--transition);
    }

    /* 首屏 Hero 区域（严禁出现图片，纯代码动感设计） */
    .hero-section {
      background: radial-gradient(circle at 10% 20%, rgba(255, 85, 0, 0.05) 0%, rgba(255, 34, 0, 0.02) 90%), var(--bg-white);
      padding: 120px 0 100px 0;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }

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

    .hero-badge {
      display: inline-flex;
      align-items: center;
      background-color: var(--bg-accent);
      color: var(--primary-color);
      padding: 6px 16px;
      border-radius: 50px;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 24px;
      border: 1px solid var(--border-orange);
    }

    .hero-title {
      font-size: 3.5rem;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-dark);
      margin-bottom: 24px;
      letter-spacing: -1px;
    }

    .hero-title span {
      background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.25rem;
      color: var(--text-muted);
      margin-bottom: 40px;
      line-height: 1.7;
    }

    .hero-btn-group {
      display: flex;
      gap: 16px;
      justify-content: center;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }

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

    .hero-feat-card {
      background: rgba(255, 255, 255, 0.8);
      border: 1px solid var(--border-color);
      padding: 24px 16px;
      border-radius: 12px;
      transition: var(--transition);
      backdrop-filter: blur(5px);
    }

    .hero-feat-card:hover {
      transform: translateY(-5px);
      border-color: var(--primary-color);
      box-shadow: 0 8px 24px rgba(255, 85, 0, 0.08);
    }

    .hero-feat-card h3 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-dark);
    }

    .hero-feat-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 关于我们 + 平台介绍 */
    .about-section {
      background-color: var(--bg-white);
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 60px;
      align-items: center;
    }

    .about-content h3 {
      font-size: 1.8rem;
      color: var(--text-dark);
      margin-bottom: 20px;
      font-weight: 700;
    }

    .about-text {
      color: var(--text-muted);
      margin-bottom: 30px;
      font-size: 1.05rem;
      line-height: 1.8;
    }

    .platform-capabilities {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }

    .cap-item {
      padding: 20px;
      background-color: var(--bg-light);
      border-radius: 8px;
      border-left: 4px solid var(--primary-color);
    }

    .cap-item h4 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-dark);
    }

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

    .about-highlight {
      background-color: var(--bg-accent);
      border: 1px solid var(--border-orange);
      padding: 30px;
      border-radius: 16px;
    }

    .about-highlight h4 {
      font-size: 1.2rem;
      color: var(--primary-color);
      margin-bottom: 12px;
      font-weight: 700;
    }

    .about-highlight ul li {
      margin-bottom: 10px;
      font-size: 0.95rem;
      color: var(--text-dark);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .about-highlight ul li::before {
      content: "✓";
      color: var(--primary-color);
      font-weight: bold;
    }

    /* 全平台 AIGC 服务 + 一站式制作 */
    .services-section {
      background-color: var(--bg-light);
    }

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

    .service-card {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      padding: 35px 24px;
      border-radius: 16px;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 6px;
      height: 100%;
      background-color: var(--primary-color);
      opacity: 0;
      transition: var(--transition);
    }

    .service-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.05);
      border-color: var(--border-orange);
    }

    .service-card:hover::before {
      opacity: 1;
    }

    .service-icon {
      font-size: 2rem;
      color: var(--primary-color);
      margin-bottom: 20px;
    }

    .service-card h3 {
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-dark);
    }

    .service-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 全行业解决方案 + 全国服务网络 */
    .solutions-section {
      background-color: var(--bg-white);
    }

    .solutions-tabs {
      display: flex;
      justify-content: center;
      gap: 16px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }

    .tab-btn {
      padding: 10px 24px;
      border-radius: 30px;
      background-color: var(--bg-light);
      border: 1px solid var(--border-color);
      font-size: 0.95rem;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
    }

    .tab-btn.active, .tab-btn:hover {
      background-color: var(--primary-color);
      color: var(--bg-white);
      border-color: var(--primary-color);
    }

    .tab-content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }

    .tab-pane {
      display: none;
      animation: fadeIn 0.5s ease-in-out forwards;
    }

    .tab-pane.active {
      display: grid;
    }

    .sol-info h3 {
      font-size: 1.8rem;
      margin-bottom: 16px;
      color: var(--text-dark);
    }

    .sol-info p {
      color: var(--text-muted);
      margin-bottom: 24px;
    }

    .sol-features {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .sol-feat-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.9rem;
      font-weight: 500;
    }

    .sol-feat-item::before {
      content: "✦";
      color: var(--primary-color);
    }

    .sol-img-container {
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    }

    .sol-img-container img {
      width: 100%;
      height: auto;
      object-fit: cover;
    }

    /* 全国服务网络 */
    .network-bar {
      margin-top: 60px;
      background: var(--bg-accent);
      border: 1px solid var(--border-orange);
      padding: 30px;
      border-radius: 12px;
      display: flex;
      justify-content: space-around;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
    }

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

    .network-item h4 {
      font-size: 1.6rem;
      color: var(--primary-color);
      font-weight: 700;
    }

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

    /* 标准化 AIGC 流程 + 技术标准 */
    .process-section {
      background-color: var(--bg-light);
    }

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

    .step-card {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      padding: 30px 20px;
      border-radius: 12px;
      text-align: center;
      position: relative;
    }

    .step-num {
      position: absolute;
      top: -20px;
      left: 50%;
      transform: translateX(-50%);
      width: 40px;
      height: 40px;
      background-color: var(--primary-color);
      color: var(--bg-white);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
      box-shadow: 0 4px 10px rgba(255, 85, 0, 0.2);
    }

    .step-card h3 {
      margin: 15px 0 10px 0;
      font-size: 1.15rem;
      font-weight: 700;
    }

    .step-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .tech-standards {
      margin-top: 50px;
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 40px;
    }

    .tech-standards h3 {
      font-size: 1.5rem;
      margin-bottom: 24px;
      text-align: center;
    }

    .standards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .std-item {
      text-align: center;
      padding: 20px;
      border-right: 1px solid var(--border-color);
    }

    .standards-grid .std-item:last-child {
      border-right: none;
    }

    .std-item h4 {
      font-size: 1.1rem;
      color: var(--text-dark);
      margin-bottom: 8px;
    }

    .std-item p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 客户案例中心 (包含横版、方版和宣传图的响应式展示) */
    .cases-section {
      background-color: var(--bg-white);
    }

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

    .case-card {
      background-color: var(--bg-light);
      border-radius: 16px;
      overflow: hidden;
      border: 1px solid var(--border-color);
      transition: var(--transition);
    }

    .case-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
      border-color: var(--border-orange);
    }

    .case-img {
      position: relative;
      aspect-ratio: 16/10;
      overflow: hidden;
      background-color: #eaeaea;
    }

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

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

    .case-tag {
      position: absolute;
      top: 12px;
      left: 12px;
      background-color: rgba(0, 0, 0, 0.6);
      color: var(--bg-white);
      padding: 4px 10px;
      font-size: 0.75rem;
      border-radius: 4px;
      font-weight: 600;
    }

    .case-info {
      padding: 24px;
    }

    .case-info h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-dark);
    }

    .case-info p {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 16px;
    }

    .case-meta {
      display: flex;
      justify-content: space-between;
      font-size: 0.8rem;
      color: var(--primary-color);
      font-weight: 600;
      border-top: 1px solid var(--border-color);
      padding-top: 12px;
    }

    /* 对比评测板块 */
    .eval-section {
      background-color: var(--bg-light);
    }

    .eval-badge-wrapper {
      display: flex;
      justify-content: center;
      gap: 20px;
      margin-bottom: 40px;
    }

    .eval-score-card {
      background: var(--bg-white);
      border: 2px solid var(--primary-color);
      border-radius: 12px;
      padding: 20px 40px;
      text-align: center;
      box-shadow: 0 4px 15px rgba(255, 85, 0, 0.05);
    }

    .eval-score {
      font-size: 3rem;
      font-weight: 900;
      color: var(--primary-color);
      line-height: 1;
    }

    .eval-label {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-top: 4px;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background-color: var(--bg-white);
      border-radius: 16px;
      border: 1px solid var(--border-color);
      box-shadow: 0 8px 20px rgba(0,0,0,0.02);
    }

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

    .eval-table th, .eval-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }

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

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

    .eval-table td.highlight {
      background-color: var(--bg-accent);
      color: var(--primary-color);
      font-weight: 600;
    }

    .eval-table .status-yes {
      color: #2ECC71;
      font-weight: bold;
    }

    .eval-table .status-no {
      color: #E74C3C;
    }

    /* Token 比价参考 + 加盟代理 */
    .token-section {
      background-color: var(--bg-white);
    }

    .token-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 50px;
      align-items: center;
    }

    .token-rates {
      background-color: var(--bg-light);
      border-radius: 16px;
      padding: 30px;
      border: 1px solid var(--border-color);
    }

    .token-rates h3 {
      font-size: 1.3rem;
      margin-bottom: 20px;
      font-weight: 700;
    }

    .rate-row {
      display: flex;
      justify-content: space-between;
      padding: 12px 0;
      border-bottom: 1px dashed var(--border-color);
      font-size: 0.95rem;
    }

    .rate-row:last-child {
      border-bottom: none;
    }

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

    .agent-box {
      background: linear-gradient(135deg, #FFF5F0 0%, #FFEBE0 100%);
      border: 1px solid var(--border-orange);
      padding: 40px;
      border-radius: 20px;
    }

    .agent-box h3 {
      font-size: 1.8rem;
      color: var(--primary-color);
      margin-bottom: 16px;
      font-weight: 800;
    }

    .agent-box p {
      font-size: 1rem;
      color: var(--text-dark);
      margin-bottom: 24px;
      line-height: 1.7;
    }

    .agent-steps {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 24px;
    }

    .agent-step-item {
      background-color: var(--bg-white);
      padding: 16px;
      border-radius: 8px;
      font-size: 0.85rem;
      font-weight: 600;
    }

    /* 职业技术培训 + 人工智能培训 */
    .training-section {
      background-color: var(--bg-light);
    }

    .training-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 20px;
    }

    .training-card {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px 20px;
      text-align: center;
      transition: var(--transition);
    }

    .training-card:hover {
      transform: translateY(-5px);
      border-color: var(--primary-color);
      box-shadow: 0 6px 20px rgba(255, 85, 0, 0.05);
    }

    .train-icon {
      font-size: 2.2rem;
      color: var(--primary-color);
      margin-bottom: 16px;
    }

    .training-card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-dark);
    }

    .training-card p {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 帮助中心 + 术语百科 + 自助排查 */
    .help-section {
      background-color: var(--bg-white);
    }

    .help-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
    }

    .help-box {
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 35px;
      background-color: var(--bg-light);
    }

    .help-box h3 {
      font-size: 1.4rem;
      margin-bottom: 20px;
      color: var(--text-dark);
      font-weight: 700;
      border-bottom: 2px solid var(--primary-color);
      padding-bottom: 10px;
      display: inline-block;
    }

    .trouble-list li {
      margin-bottom: 16px;
      padding-left: 24px;
      position: relative;
    }

    .trouble-list li::before {
      content: "●";
      position: absolute;
      left: 0;
      color: var(--primary-color);
    }

    .trouble-list h4 {
      font-size: 1rem;
      font-weight: 600;
      color: var(--text-dark);
      margin-bottom: 4px;
    }

    .trouble-list p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

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

    .glossary-card {
      background-color: var(--bg-white);
      padding: 16px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
    }

    .glossary-card h4 {
      font-size: 0.95rem;
      color: var(--primary-color);
      margin-bottom: 6px;
      font-weight: 700;
    }

    .glossary-card p {
      font-size: 0.8rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* FAQ 折叠面板 */
    .faq-section {
      background-color: var(--bg-light);
    }

    .faq-grid {
      max-width: 900px;
      margin: 0 auto;
    }

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

    .faq-header {
      padding: 20px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-weight: 600;
      font-size: 1rem;
      user-select: none;
    }

    .faq-icon {
      font-size: 1.2rem;
      transition: transform 0.3s;
      color: var(--primary-color);
    }

    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background-color: var(--bg-accent);
    }

    .faq-content-inner {
      padding: 20px 24px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
      border-top: 1px solid var(--border-color);
    }

    .faq-item.active .faq-content {
      max-height: 200px; /* 足够容纳文本的高度 */
    }

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

    /* 客户评论卡片 */
    .reviews-section {
      background-color: var(--bg-white);
    }

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

    .review-card {
      background-color: var(--bg-light);
      border: 1px solid var(--border-color);
      padding: 30px;
      border-radius: 16px;
      position: relative;
    }

    .quote-icon {
      font-size: 3rem;
      color: var(--border-orange);
      position: absolute;
      top: 10px;
      right: 20px;
      font-family: serif;
      line-height: 1;
    }

    .review-content {
      font-size: 0.95rem;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.6;
      position: relative;
      z-index: 2;
    }

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

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

    .user-info h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-dark);
    }

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

    /* 行业资讯 / 知识库 / 最新文章 */
    .articles-section {
      background-color: var(--bg-light);
    }

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

    .article-card {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px;
      transition: var(--transition);
    }

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

    .article-date {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 8px;
    }

    .article-card h3 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 12px;
      line-height: 1.4;
    }

    .article-card h3 a {
      color: var(--text-dark);
    }

    .article-card h3 a:hover {
      color: var(--primary-color);
    }

    .article-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 16px;
      height: 60px;
      overflow: hidden;
    }

    .article-more {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--primary-color);
    }

    /* 智能需求匹配与联系我们表单 */
    .contact-section {
      background-color: var(--bg-white);
    }

    .contact-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 50px;
    }

    .form-wrapper {
      background-color: var(--bg-light);
      border: 1px solid var(--border-color);
      padding: 40px;
      border-radius: 20px;
    }

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

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

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
      background-color: var(--bg-white);
      font-size: 0.95rem;
      transition: var(--transition);
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(255, 85, 0, 0.1);
    }

    select.form-control {
      cursor: pointer;
    }

    .contact-info-area {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-methods {
      margin-bottom: 40px;
    }

    .contact-method-item {
      display: flex;
      gap: 16px;
      margin-bottom: 24px;
    }

    .method-icon {
      width: 48px;
      height: 48px;
      background-color: var(--bg-accent);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-color);
      font-weight: 700;
      font-size: 1.2rem;
      flex-shrink: 0;
    }

    .method-text h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 4px;
    }

    .method-text p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .qrcode-area {
      background-color: var(--bg-light);
      border: 1px solid var(--border-color);
      padding: 24px;
      border-radius: 16px;
      display: flex;
      align-items: center;
      gap: 24px;
    }

    .qrcode-img {
      width: 120px;
      height: 120px;
      border-radius: 8px;
      overflow: hidden;
      background-color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .qrcode-img img {
      width: 100%;
      height: auto;
    }

    .qrcode-desc h4 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 6px;
    }

    .qrcode-desc p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 页脚样式 (与系统对齐) */
    footer {
      background-color: #1A1A1A;
      color: #CCCCCC;
      padding: 60px 0 30px 0;
      font-size: 0.9rem;
      border-top: 4px solid var(--primary-color);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr 1fr;
      gap: 50px;
      margin-bottom: 40px;
    }

    .footer-brand h3 {
      color: var(--bg-white);
      font-size: 1.3rem;
      margin-bottom: 16px;
      font-weight: 700;
    }

    .footer-brand p {
      font-size: 0.85rem;
      line-height: 1.6;
      margin-bottom: 20px;
    }

    .footer-links h4, .footer-contact h4 {
      color: var(--bg-white);
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .footer-links ul {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }

    .footer-links a {
      color: #999999;
      font-size: 0.85rem;
    }

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

    .footer-contact-list li {
      margin-bottom: 12px;
      font-size: 0.85rem;
    }

    .footer-bottom {
      border-top: 1px solid #2A2A2A;
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
    }

    .friend-links {
      font-size: 0.8rem;
      color: #666;
    }

    .friend-links a {
      color: #888;
      margin-right: 12px;
    }

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

    .copyright {
      font-size: 0.8rem;
      color: #666666;
    }

    .copyright a {
      color: #888888;
    }

    /* 浮动客服入口 & 返回顶部 */
    .float-panel {
      position: fixed;
      right: 24px;
      bottom: 100px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      z-index: 999;
    }

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

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

    .float-btn svg {
      width: 22px;
      height: 22px;
      fill: currentColor;
    }

    .float-qrcode-pop {
      position: absolute;
      right: 60px;
      bottom: 0;
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      padding: 16px;
      border-radius: 8px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
      display: none;
      text-align: center;
      width: 140px;
    }

    .float-qrcode-pop img {
      width: 100px;
      height: 100px;
      margin-bottom: 8px;
    }

    .float-qrcode-pop p {
      font-size: 0.75rem;
      color: var(--text-dark);
      margin: 0;
    }

    .float-btn:hover .float-qrcode-pop {
      display: block;
    }

    /* 动画关键帧 */
    @keyframes fadeIn {
      from {
        opacity: 0;
        transform: translateY(10px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    /* 移动端响应式微调 */
    @media (max-width: 1024px) {
      .hero-title {
        font-size: 2.8rem;
      }
      .services-grid, .cases-grid, .reviews-grid, .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .training-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .about-grid, .token-grid, .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
    }

    @media (max-width: 768px) {
      .nav-menu {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background-color: var(--bg-white);
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
      }
      .nav-menu.active {
        display: flex;
      }
      .menu-toggle {
        display: flex;
      }
      .hero-title {
        font-size: 2.2rem;
      }
      .hero-features {
        grid-template-columns: repeat(2, 1fr);
      }
      .services-grid, .cases-grid, .reviews-grid, .articles-grid, .standards-grid, .process-steps, .help-grid {
        grid-template-columns: 1fr;
      }
      .training-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .tab-content {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .section-title {
        font-size: 1.8rem;
      }
    }