:root {
      --bg-main: #05060b;
      --bg-card: #0e101f;
      --bg-nav: rgba(14, 16, 31, 0.95);
      --neon-cyan: #00f2fe;
      --neon-purple: #bd00ff;
      --neon-pink: #ff007f;
      --text-primary: #ffffff;
      --text-secondary: #a2a8c3;
      --border-glow: rgba(0, 242, 254, 0.2);
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      --container-max-width: 1200px;
    }

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

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

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

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

    /* 头部导航 */
    header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      background: var(--bg-nav);
      border-bottom: 1px solid var(--border-glow);
      backdrop-filter: blur(10px);
    }

    .nav-container {
      max-width: var(--container-max-width);
      margin: 0 auto;
      padding: 0.8rem 1.5rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .brand img {
      height: 40px;
      display: block;
    }

    .brand-title {
      font-size: 1.4rem;
      font-weight: 800;
      background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: 1px;
    }

    .nav-menu {
      display: flex;
      gap: 20px;
      list-style: none;
    }

    .nav-menu a {
      font-size: 0.95rem;
      color: var(--text-secondary);
      font-weight: 500;
      padding: 5px 0;
      position: relative;
    }

    .nav-menu a:hover,
    .nav-menu a.active {
      color: var(--neon-cyan);
      text-shadow: 0 0 8px rgba(0, 242, 254, 0.6);
    }

    .nav-menu a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--neon-cyan);
      transition: width 0.3s;
    }

    .nav-menu a:hover::after {
      width: 100%;
    }

    .nav-btn {
      background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
      color: #000;
      padding: 8px 20px;
      border-radius: 30px;
      font-weight: bold;
      font-size: 0.9rem;
      box-shadow: 0 0 15px rgba(0, 242, 254, 0.4);
      transition: all 0.3s ease;
    }

    .nav-btn:hover {
      box-shadow: 0 0 25px rgba(255, 0, 127, 0.6);
      color: #fff;
      transform: translateY(-1px);
    }

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

    .menu-toggle span {
      display: block;
      width: 25px;
      height: 3px;
      background-color: var(--text-primary);
      transition: 0.3s;
    }

    /* 容器规范 */
    .container {
      max-width: var(--container-max-width);
      margin: 0 auto;
      padding: 5rem 1.5rem;
    }

    section {
      position: relative;
    }

    /* 首屏 Hero 区域 (无图片) */
    .hero-section {
      padding: 9rem 1.5rem 5rem;
      text-align: center;
      background: radial-gradient(circle at 50% 30%, rgba(189, 0, 255, 0.15) 0%, rgba(5, 6, 11, 1) 70%);
    }

    .hero-badge {
      display: inline-block;
      padding: 6px 16px;
      background: rgba(0, 242, 254, 0.1);
      border: 1px solid var(--neon-cyan);
      border-radius: 20px;
      font-size: 0.85rem;
      color: var(--neon-cyan);
      text-transform: uppercase;
      letter-spacing: 2px;
      margin-bottom: 2rem;
      box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
    }

    .hero-section h1 {
      font-size: 3rem;
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 1.5rem;
      background: linear-gradient(135deg, #fff 30%, var(--neon-cyan) 70%, var(--neon-pink));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      text-shadow: 0 0 40px rgba(189, 0, 255, 0.2);
    }

    .hero-desc {
      font-size: 1.2rem;
      color: var(--text-secondary);
      max-width: 800px;
      margin: 0 auto 3rem;
    }

    .hero-ctas {
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
      margin-bottom: 4rem;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
      color: #000;
      padding: 14px 35px;
      border-radius: 30px;
      font-weight: bold;
      font-size: 1.1rem;
      box-shadow: 0 0 20px rgba(0, 242, 254, 0.5);
      transition: all 0.3s ease;
    }

    .btn-primary:hover {
      box-shadow: 0 0 30px var(--neon-pink);
      color: #fff;
      transform: translateY(-3px);
    }

    .btn-secondary {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: var(--text-primary);
      padding: 14px 35px;
      border-radius: 30px;
      font-weight: bold;
      font-size: 1.1rem;
      transition: all 0.3s ease;
    }

    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: var(--neon-cyan);
      box-shadow: 0 0 15px rgba(0, 242, 254, 0.3);
      transform: translateY(-3px);
    }

    /* 数据指标卡片 */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 2rem;
    }

    .stat-card {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      padding: 2rem 1.5rem;
      border-radius: 12px;
      text-align: center;
      transition: all 0.3s;
    }

    .stat-card:hover {
      border-color: var(--neon-purple);
      box-shadow: 0 0 20px rgba(189, 0, 255, 0.25);
      transform: translateY(-5px);
    }

    .stat-number {
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--neon-cyan);
      margin-bottom: 0.5rem;
      text-shadow: 0 0 10px rgba(0, 242, 254, 0.3);
    }

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

    /* 模块通用样式 */
    .section-title {
      font-size: 2.2rem;
      text-align: center;
      margin-bottom: 1rem;
      font-weight: 700;
      background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .section-subtitle {
      text-align: center;
      color: var(--text-secondary);
      margin-bottom: 3.5rem;
      font-size: 1.05rem;
    }

    /* 关于我们 & 介绍 */
    .about-content {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-text h3 {
      font-size: 1.8rem;
      color: var(--neon-cyan);
      margin-bottom: 1.2rem;
    }

    .about-text p {
      color: var(--text-secondary);
      margin-bottom: 1.5rem;
      font-size: 1.05rem;
    }

    .about-features {
      list-style: none;
    }

    .about-features li {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 1rem;
      color: var(--text-primary);
    }

    .about-features li::before {
      content: '✓';
      color: var(--neon-pink);
      font-weight: bold;
      text-shadow: 0 0 5px var(--neon-pink);
    }

    .about-highlights {
      background: var(--bg-card);
      border-left: 4px solid var(--neon-purple);
      padding: 2rem;
      border-radius: 0 12px 12px 0;
    }

    .highlight-item {
      margin-bottom: 1.5rem;
    }

    .highlight-item:last-child {
      margin-bottom: 0;
    }

    .highlight-title {
      font-weight: bold;
      color: var(--neon-cyan);
      margin-bottom: 0.3rem;
    }

    /* 服务能力卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
    }

    .service-card {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: 12px;
      padding: 2.5rem 2rem;
      transition: all 0.3s;
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--neon-cyan), var(--neon-purple));
      opacity: 0;
      transition: opacity 0.3s;
    }

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

    .service-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 10px 25px rgba(0, 242, 254, 0.15);
      border-color: rgba(0, 242, 254, 0.4);
    }

    .service-icon {
      font-size: 2.5rem;
      margin-bottom: 1.5rem;
      display: inline-block;
      line-height: 1;
    }

    .service-card h3 {
      font-size: 1.3rem;
      margin-bottom: 1rem;
      color: var(--text-primary);
    }

    .service-card p {
      color: var(--text-secondary);
      font-size: 0.95rem;
      margin-bottom: 1.5rem;
    }

    .service-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .service-tag {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 0.8rem;
      color: var(--text-secondary);
    }

    /* 聚合大模型列表 */
    .model-pool {
      margin-top: 4rem;
      padding: 3rem;
      background: radial-gradient(circle at 10% 20%, rgba(189, 0, 255, 0.1) 0%, rgba(14, 16, 31, 0.8) 100%);
      border: 1px solid var(--border-glow);
      border-radius: 16px;
      text-align: center;
    }

    .model-pool h3 {
      font-size: 1.6rem;
      margin-bottom: 2rem;
      color: var(--neon-cyan);
    }

    .tags-container {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px;
    }

    .model-tag {
      background: rgba(0, 242, 254, 0.05);
      border: 1px solid rgba(0, 242, 254, 0.2);
      color: var(--neon-cyan);
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 0.9rem;
      font-weight: 500;
      transition: all 0.3s;
    }

    .model-tag:hover {
      background: var(--neon-cyan);
      color: #000;
      box-shadow: 0 0 15px var(--neon-cyan);
      transform: scale(1.05);
    }

    /* 全行业解决方案 & 服务网络 */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }

    .solution-card {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: 12px;
      padding: 2.5rem;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .solution-header h3 {
      font-size: 1.4rem;
      color: var(--neon-pink);
      margin-bottom: 1rem;
    }

    .solution-header p {
      color: var(--text-secondary);
      font-size: 0.95rem;
      margin-bottom: 1.5rem;
    }

    .solution-list {
      list-style: none;
      margin-bottom: 1.5rem;
    }

    .solution-list li {
      margin-bottom: 0.5rem;
      font-size: 0.9rem;
      color: var(--text-secondary);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .solution-list li::before {
      content: '⚡';
      color: var(--neon-cyan);
    }

    .network-panel {
      margin-top: 4rem;
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: 16px;
      padding: 3rem;
      text-align: center;
    }

    .network-nodes {
      display: flex;
      justify-content: space-around;
      flex-wrap: wrap;
      gap: 20px;
      margin-top: 2rem;
    }

    .node-item {
      flex: 1;
      min-width: 150px;
    }

    .node-city {
      font-size: 1.2rem;
      font-weight: bold;
      color: var(--neon-cyan);
      margin-bottom: 0.5rem;
    }

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

    /* 流程与技术标准 */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .process-step {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: 12px;
      padding: 2rem;
      position: relative;
      transition: all 0.3s;
    }

    .process-step:hover {
      border-color: var(--neon-pink);
      box-shadow: 0 0 15px rgba(255, 0, 127, 0.2);
    }

    .step-num {
      position: absolute;
      top: -15px;
      left: 20px;
      width: 35px;
      height: 35px;
      background: linear-gradient(135deg, var(--neon-pink), var(--neon-purple));
      color: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      box-shadow: 0 0 10px var(--neon-pink);
    }

    .process-step h3 {
      font-size: 1.1rem;
      margin: 1rem 0 0.8rem;
    }

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

    .standards-bar {
      margin-top: 3rem;
      padding: 1.5rem;
      background: rgba(0, 242, 254, 0.05);
      border: 1px dashed var(--neon-cyan);
      border-radius: 8px;
      display: flex;
      justify-content: space-around;
      align-items: center;
      flex-wrap: wrap;
      gap: 15px;
    }

    .standard-tag {
      font-size: 0.95rem;
      font-weight: bold;
      color: var(--neon-cyan);
    }

    /* 对比评测 */
    .compare-container {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: 16px;
      padding: 3rem;
    }

    .score-badge {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 2rem;
      padding-bottom: 1.5rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .score-left h3 {
      font-size: 1.8rem;
      color: #fff;
    }

    .score-right {
      text-align: right;
    }

    .stars {
      color: #ffb800;
      font-size: 1.5rem;
      text-shadow: 0 0 10px rgba(255, 184, 0, 0.5);
    }

    .score-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--neon-cyan);
    }

    .compare-table-wrapper {
      overflow-x: auto;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 600px;
    }

    .compare-table th,
    .compare-table td {
      padding: 1rem 1.2rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .compare-table th {
      color: var(--neon-cyan);
      font-weight: 600;
    }

    .compare-table tr:hover td {
      background: rgba(255, 255, 255, 0.02);
    }

    .compare-highlight {
      color: var(--neon-pink);
      font-weight: bold;
    }

    /* Token 比价参考 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .token-card {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: 12px;
      padding: 2rem;
      text-align: center;
      transition: all 0.3s;
    }

    .token-card:hover {
      box-shadow: 0 0 15px rgba(0, 242, 254, 0.2);
      border-color: var(--neon-cyan);
    }

    .token-card h3 {
      font-size: 1.2rem;
      margin-bottom: 1.5rem;
    }

    .token-price {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--neon-cyan);
      margin-bottom: 1.5rem;
    }

    .token-price span {
      font-size: 0.9rem;
      color: var(--text-secondary);
      font-weight: normal;
    }

    /* 人工智能培训 */
    .training-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
    }

    .training-card {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: 12px;
      padding: 2rem;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .training-info h3 {
      font-size: 1.25rem;
      color: var(--neon-cyan);
      margin-bottom: 1rem;
    }

    .training-info p {
      color: var(--text-secondary);
      font-size: 0.9rem;
      margin-bottom: 1.5rem;
    }

    .cert-authority {
      display: inline-block;
      padding: 4px 10px;
      background: rgba(189, 0, 255, 0.1);
      border: 1px solid var(--neon-purple);
      color: var(--neon-purple);
      font-size: 0.8rem;
      border-radius: 4px;
      font-weight: bold;
      margin-bottom: 1rem;
    }

    /* 客户案例中心 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
    }

    .case-card {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: 12px;
      overflow: hidden;
      transition: all 0.3s;
    }

    .case-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 20px rgba(0, 242, 254, 0.2);
    }

    .case-image-wrapper {
      position: relative;
      aspect-ratio: 16/10;
      overflow: hidden;
      background: #1a1a2e;
    }

    .case-image-wrapper img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .case-content {
      padding: 1.5rem;
    }

    .case-content h3 {
      font-size: 1.15rem;
      margin-bottom: 0.5rem;
      color: var(--text-primary);
    }

    .case-content p {
      font-size: 0.9rem;
      color: var(--text-secondary);
    }

    /* 智能需求匹配与表单 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 40px;
    }

    .match-form-box {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: 16px;
      padding: 3rem;
    }

    .form-group {
      margin-bottom: 1.5rem;
    }

    .form-group label {
      display: block;
      margin-bottom: 0.5rem;
      font-size: 0.9rem;
      color: var(--text-secondary);
    }

    .form-control {
      width: 100%;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 0.8rem 1rem;
      border-radius: 6px;
      color: #fff;
      font-size: 0.95rem;
      transition: all 0.3s;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--neon-cyan);
      box-shadow: 0 0 8px rgba(0, 242, 254, 0.4);
      background: rgba(255, 255, 255, 0.05);
    }

    select.form-control option {
      background: var(--bg-card);
      color: #fff;
    }

    .btn-submit {
      width: 100%;
      background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
      color: #000;
      border: none;
      padding: 1rem;
      border-radius: 6px;
      font-size: 1.05rem;
      font-weight: bold;
      cursor: pointer;
      box-shadow: 0 0 15px rgba(0, 242, 254, 0.4);
      transition: all 0.3s;
    }

    .btn-submit:hover {
      box-shadow: 0 0 25px var(--neon-pink);
      color: #fff;
    }

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

    .contact-details {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: 16px;
      padding: 2.5rem;
      margin-bottom: 1.5rem;
    }

    .info-item {
      display: flex;
      align-items: center;
      gap: 15px;
      margin-bottom: 1.5rem;
    }

    .info-item:last-child {
      margin-bottom: 0;
    }

    .info-icon {
      font-size: 1.5rem;
      color: var(--neon-cyan);
    }

    .info-text h4 {
      font-size: 0.9rem;
      color: var(--text-secondary);
    }

    .info-text p {
      font-size: 1.1rem;
      font-weight: bold;
    }

    .qr-panels {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 15px;
    }

    .qr-card {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: 16px;
      padding: 1.5rem;
      text-align: center;
    }

    .qr-card img {
      max-width: 110px;
      height: auto;
      border-radius: 8px;
      margin-bottom: 0.8rem;
    }

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

    /* 常见问题自助排查 & 百科 */
    .qa-trouble-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      margin-top: 3rem;
    }

    .trouble-card, .glossary-card {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: 12px;
      padding: 2rem;
    }

    .trouble-card h3, .glossary-card h3 {
      font-size: 1.3rem;
      color: var(--neon-cyan);
      margin-bottom: 1.5rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      padding-bottom: 0.8rem;
    }

    .trouble-list, .glossary-list {
      list-style: none;
    }

    .trouble-list li, .glossary-list li {
      margin-bottom: 1rem;
    }

    .trouble-list li h4, .glossary-list li h4 {
      font-size: 0.95rem;
      color: var(--text-primary);
      margin-bottom: 0.2rem;
    }

    .trouble-list li p, .glossary-list li p {
      font-size: 0.85rem;
      color: var(--text-secondary);
    }

    /* FAQ 折叠面板 */
    .faq-accordion {
      max-width: 900px;
      margin: 0 auto;
    }

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

    .faq-header {
      padding: 1.2rem 1.5rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      transition: background 0.3s;
    }

    .faq-header:hover {
      background: rgba(0, 242, 254, 0.03);
    }

    .faq-question {
      font-weight: 600;
      font-size: 1rem;
      color: #fff;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: rgba(0, 0, 0, 0.2);
    }

    .faq-answer-inner {
      padding: 1.2rem 1.5rem;
      color: var(--text-secondary);
      font-size: 0.95rem;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

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

    .faq-item.active .faq-answer {
      max-height: 250px;
    }

    /* 客户评论卡片 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
    }

    .review-card {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: 12px;
      padding: 2rem;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-text {
      font-size: 0.95rem;
      color: var(--text-secondary);
      font-style: italic;
      margin-bottom: 1.5rem;
    }

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

    .author-avatar {
      width: 45px;
      height: 45px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      color: #000;
      font-size: 1.1rem;
    }

    .author-info h4 {
      font-size: 0.95rem;
      color: #fff;
    }

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

    /* 行业资讯 / 知识库 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 25px;
    }

    .news-card {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: 12px;
      padding: 2rem;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.3s;
    }

    .news-card:hover {
      border-color: var(--neon-cyan);
      box-shadow: 0 0 15px rgba(0, 242, 254, 0.15);
    }

    .news-meta {
      font-size: 0.8rem;
      color: var(--neon-pink);
      margin-bottom: 0.8rem;
    }

    .news-card h3 {
      font-size: 1.2rem;
      margin-bottom: 1rem;
      color: #fff;
    }

    .news-card p {
      font-size: 0.9rem;
      color: var(--text-secondary);
      margin-bottom: 1.5rem;
    }

    .news-link {
      font-size: 0.9rem;
      color: var(--neon-cyan);
      font-weight: bold;
      display: inline-flex;
      align-items: center;
      gap: 5px;
    }

    .news-link:hover {
      color: var(--neon-pink);
    }

    /* 底部页脚 */
    footer {
      background: #06070c;
      border-top: 1px solid var(--border-glow);
      padding: 4rem 1.5rem 2rem;
    }

    .footer-container {
      max-width: var(--container-max-width);
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1.5fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 3rem;
    }

    .footer-brand h3 {
      font-size: 1.5rem;
      margin-bottom: 1rem;
      background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .footer-brand p {
      color: var(--text-secondary);
      font-size: 0.9rem;
      margin-bottom: 1.5rem;
    }

    .footer-links h4,
    .footer-contact h4 {
      font-size: 1.1rem;
      color: #fff;
      margin-bottom: 1.2rem;
      position: relative;
    }

    .footer-links h4::after,
    .footer-contact h4::after {
      content: '';
      position: absolute;
      bottom: -5px;
      left: 0;
      width: 30px;
      height: 2px;
      background: var(--neon-cyan);
    }

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

    .footer-links li {
      margin-bottom: 0.8rem;
    }

    .footer-links a {
      color: var(--text-secondary);
      font-size: 0.9rem;
    }

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

    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 1rem;
    }

    .friend-links a {
      display: inline-block;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.08);
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 0.8rem;
      color: var(--text-secondary);
    }

    .friend-links a:hover {
      border-color: var(--neon-cyan);
      color: var(--neon-cyan);
    }

    .footer-bottom {
      max-width: var(--container-max-width);
      margin: 0 auto;
      padding-top: 2rem;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      text-align: center;
      font-size: 0.85rem;
      color: var(--text-secondary);
    }

    /* 悬浮客服面板 */
    .float-kefu {
      position: fixed;
      right: 25px;
      bottom: 25px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .kefu-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
      box-shadow: 0 0 15px rgba(0, 242, 254, 0.4);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      position: relative;
      transition: all 0.3s;
    }

    .kefu-btn:hover {
      transform: scale(1.1);
      box-shadow: 0 0 25px var(--neon-pink);
    }

    .kefu-btn svg {
      width: 24px;
      height: 24px;
      fill: #000;
    }

    .kefu-qr-popup {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: 12px;
      padding: 1rem;
      text-align: center;
      width: 150px;
      box-shadow: 0 10px 25px rgba(0,0,0,0.5);
      opacity: 0;
      pointer-events: none;
      transform: translateY(10px);
      transition: all 0.3s;
    }

    .kefu-btn:hover .kefu-qr-popup {
      opacity: 1;
      pointer-events: auto;
      transform: translateY(0);
    }

    .kefu-qr-popup img {
      width: 100%;
      height: auto;
      border-radius: 6px;
      margin-bottom: 5px;
    }

    .kefu-qr-popup p {
      font-size: 0.75rem;
      color: var(--text-primary);
    }

    /* 响应式适配 */
    @media (max-width: 992px) {
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .services-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-content {
        grid-template-columns: 1fr;
      }
      .solutions-grid {
        grid-template-columns: 1fr;
      }
      .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .token-grid {
        grid-template-columns: 1fr;
      }
      .training-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .case-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-container {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .qa-trouble-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: flex;
      }
      .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-card);
        border-bottom: 1px solid var(--border-glow);
        flex-direction: column;
        padding: 1.5rem;
        gap: 15px;
        align-items: center;
        display: none;
      }
      .nav-menu.show {
        display: flex;
      }
      .hero-section h1 {
        font-size: 2.2rem;
      }
      .stats-grid {
        grid-template-columns: 1fr;
      }
      .services-grid {
        grid-template-columns: 1fr;
      }
      .process-timeline {
        grid-template-columns: 1fr;
      }
      .training-grid {
        grid-template-columns: 1fr;
      }
      .case-grid {
        grid-template-columns: 1fr;
      }
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .news-grid {
        grid-template-columns: 1fr;
      }
    }