/* 公共样式 */
body {
    margin: 0;
    padding: 0;
    font-family: "Helvetica Neue", Arial, "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
    background-color: #131313;
    color: #e0e0e0;
    line-height: 1.6;
  }
  
  a {
    color: #4a90e2;
    text-decoration: none;
    transition: color 0.3s ease;
  }
  
  a:hover {
    color: #6ba8ff;
    text-decoration: underline;
  }
  
  /* 新增卡片滚动适配样式 */
  .scroll-content .ai-feature-card {
    flex-shrink: 0;
    width: 300px;
    margin-right: 30px;
  }
  
  /* 同步product的卡片样式 */
  .ai-feature-card {
    background: linear-gradient(145deg, #1a1a1a, #222222);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
    border: 1px solid rgba(74, 144, 226, 0.2);
    cursor: pointer;
    width: 280px; 
  }
  .ai-feature-card:hover {
    background: linear-gradient(145deg, #101010, #181818);
  }
  
  .ai-feature-icon {
    font-size: 3rem;
    color: #4a90e2;
    margin-bottom: 20px;
    text-align: center;
  }
  
  .ai-feature-title {
    font-size: 1.5rem;
    color: white;
    margin-bottom: 15px;
    text-align: center;
    font-weight: 500;
  }
  
  .ai-feature-desc {
    color: #b0b0b0;
    text-align: center;
    margin: 8px 0;
    font-size: 0.95em;
  }
  
  /* 头部和尾部专用样式，使用更具体的选择器避免冲突 */
  .header-footer-styles body {
    margin: 0;
    padding: 0;
    font-family: "Helvetica Neue", Arial, "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
    background-color: #131313;
    color: #e0e0e0;
    line-height: 1.6;
  }
  
  .header-footer-styles a {
    color: #4a90e2;
    text-decoration: none;
    transition: color 0.3s ease;
  }
  
  .header-footer-styles a:hover {
    color: #6ba8ff;
    text-decoration: underline;
  }
  
  /* 导航栏表格样式 */
  .header-table {
    border-collapse: collapse;
    margin: 0 auto;
    padding: 0;
    width: 1440px;
  }
  
  .header-table td {
    padding: 15px 10px;
    text-align: center;
    vertical-align: middle;
  }
  
  .header-table td:first-child {
    padding-left: 20px;
    text-align: left;
  }
  
  /* 登录按钮样式 */
  .header-login {
    background-color: #4a90e2;
    color: white;
    border-radius: 4px;
    padding: 8px 15px;
    font-weight: 500;
  }
  
  .header-login:hover {
    background-color: #6ba8ff;
    text-decoration: none;
    color: white;
  }
  
  /* 导航项悬停效果 */
  .header-nav-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
    cursor: pointer;
  }
  
  /* 导航链接样式 */
  .header-nav-link {
    color: #ffffff;
    text-decoration: none;
    transition: color 0.3s ease;
  }
  
  .header-nav-link:hover {
    color: #ffffff;
    text-decoration: underline;
  }
  
  /* 语言特定样式 */
  .header-chinese {
    font-family: "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
    font-weight: normal;
    letter-spacing: 0.5px;
  }
  
  .header-english {
    font-family: "Helvetica Neue", Arial, sans-serif;
    font-weight: 300;
  }
  
  /* Chinese text specific styling */
  .chinese {
    font-family: "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
    font-weight: normal;
    letter-spacing: 0.5px;
  }
  
  /* English text specific styling */
  .english {
    font-family: "Helvetica Neue", Arial, sans-serif;
    font-weight: 300;
  }
  
  /* Navigation table styling */
  table {
    border-collapse: collapse;
    margin: 0 auto;
    padding: 0;
  }
  
  td {
    padding: 15px 10px;
    text-align: center;
    vertical-align: middle;
  }
  
  /* Logo cell */
  td:first-child {
    padding-left: 20px;
    text-align: left;
  }
  
  /* Login button styling */
  .login {
    background-color: #4a90e2;
    color: white;
    border-radius: 4px;
    padding: 8px 15px;
    font-weight: 500;
  }
  
  .login:hover {
    background-color: #6ba8ff;
    text-decoration: none;
    color: white;
  }
  
  /* Hover effect for navigation items */
  td:not(:first-child):not(:last-child):hover {
    background-color: rgba(255, 255, 255, 0.05);
    cursor: pointer;
  }
  
  /* Logo image */
  img {
    max-width: 100%;
    height: auto;
    display: block;
  }
  
  /* Join Now 按钮样式 */
  .join-now-button {
    background-color: #2ecc71;
    color: white;
    border-radius: 4px;
    padding: 8px 15px;
    font-weight: 500;
    display: inline-block;
    text-decoration: none;
    transition: background-color 0.3s ease, color 0.3s ease;
  }
  
  .join-now-button:hover {
    background-color: #4a90e2;
    color: white;
    text-decoration: none;
  }
  
  /* Explore More 按钮样式 */
  .explore-more-button {
    background-color: #131313;
    color: white;
    border: 1px solid white;
    border-radius: 4px;
    padding: 8px 15px;
    font-weight: 500;
    display: inline-block;
    text-decoration: none;
    transition: none;
  }
  
  .explore-more-button:hover {
    background-color: #131313;
    color: white;
    border: 1px solid white;
    text-decoration: none;
  }
  
  /* 新增类，用于调大字体 */
  .larger-font {
    font-size: 1.1em;
  }
  
  /* 修改后的滚动样式 */
  .scroll-container {
    width: 1440px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
  }
  
  .scroll-content {
    display: flex;
    gap: 20px;
    width: max-content;
    animation: scroll 60s linear infinite;
  }
  
  @keyframes scroll {
    0% {
      transform: translateX(0);
    }
    100% {
      transform: translateX(-50%);
    }
  }
  
  /* 从左向右滚动的动画 */
  @keyframes scroll-right {
    0% {
      transform: translateX(-38%);
    }
    100% {
      transform: translateX(0);
    }
  }
  
  /* 保持图片尺寸一致 */
  .rounded-img {
    flex-shrink: 0;
    border-radius: 10px;
    width: 350px;
    height: 350px;
    object-fit: cover;
  }
  
  /* 下面表格的滚动样式 */
  .scroll-container-bottom {
    width: 1440px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
  }
  
  .scroll-content-bottom {
    display: flex;
    gap: 20px;
    width: max-content;
    animation: scroll-right 30s linear infinite;
  }
  
  .scroll-content-bottom:hover {
    animation-play-state: paused;
  }
  
  /* 为核心能力卡片的链接添加样式，确保鼠标悬停无下划线 */
  .scroll-container-bottom .scroll-content-bottom a {
    text-decoration: none;
  }
  
  .scroll-container-bottom .scroll-content-bottom a:hover {
    text-decoration: none;
  }
  
  /* 新增 footer-info 的样式 */
  .footer-info {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
  }
  
  .footer-info img {
    width: 149px;
    height: 59px;
  }
  
  .footer-info p {
    margin: 5px 0;
  }
  
  .footer-info a {
    color: #ffffff;
    text-decoration: none;
    transition: color 0.3s ease;
  }
  
  .footer-info a:hover {
    color: #6ba8ff;
    text-decoration: underline;
  }
  
  /* 新增表格样式 */
  .pricing-table {
    width: 1350px;
    margin: 40px auto;
    border-collapse: separate;
    border-spacing: 0;
    font-family: "Microsoft YaHei", sans-serif;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    overflow: hidden;
  }
  
  .pricing-table th,
  .pricing-table td {
    padding: 20px;
    text-align: center;
    vertical-align: middle;
    border: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .pricing-table thead th {
    background-color: #2c3e50;
    color: white;
    font-size: 18px;
    font-weight: 600;
    padding: 25px 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
  }
  
  .pricing-table tbody tr:nth-child(odd) {
    background-color: rgba(255, 255, 255, 0.03);
  }
  
  .pricing-table tbody tr:nth-child(even) {
    background-color: rgba(255, 255, 255, 0.06);
  }
  
  .pricing-table tbody tr:hover {
    background-color: rgba(74, 144, 226, 0.1);
    transition: background-color 0.3s ease;
  }
  
  .pricing-table .feature-name {
    text-align: left;
    font-weight: 500;
    color: #e0e0e0;
  }
  
  .pricing-table .highlight {
    color: #4a90e2;
    font-weight: 500;
  }
  
  .pricing-table .price {
    font-size: 20px;
    font-weight: 600;
    color: #2ecc71;
  }
  
  .pricing-table .plan-name {
    font-size: 20px;
    font-weight: 600;
    color: #4a90e2;
    position: relative;
    padding-bottom: 10px;
  }
  
  .pricing-table .plan-name:after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: #4a90e2;
  }
  
  .pricing-table .cta-cell {
    padding: 30px 20px;
  }
  
  .pricing-table .cta-button {
    display: inline-block;
    padding: 12px 25px;
    background-color: #4a90e2;
    color: white;
    border-radius: 6px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
  }
  
  .pricing-table .cta-button:hover {
    background-color: #6ba8ff;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(74, 144, 226, 0.4);
  }
  
  /* 新增导航栏链接样式 */
  .new-nav-link {
    color: #ffffff;
    text-decoration: none;
    transition: color 0.3s ease;
  }
  
  .new-nav-link:hover {
    color: #ffffff;
    text-decoration: underline;
  }
  
  /* 按钮样式 */
  .cta-button {
    background-color: #4a90e2;
    color: white;
    border-radius: 6px;
    padding: 12px 25px;
    font-weight: 500;
    display: inline-block;
    text-decoration: none;
    transition: all 0.3s ease;
  }
  
  .cta-button:hover {
    background-color: #6ba8ff;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(74, 144, 226, 0.4);
    text-decoration: none;
  }
  
  .secondary-button {
    background-color: transparent;
    color: white;
    border: 1px solid #4a90e2;
    border-radius: 6px;
    padding: 12px 25px;
    font-weight: 500;
    display: inline-block;
    text-decoration: none;
    transition: all 0.3s ease;
  }
  
  .secondary-button:hover {
    background-color: rgba(74, 144, 226, 0.1);
    text-decoration: none;
  }
  
  /* 新增导航栏链接样式 */
  .nav-link {
    color: #ffffff;
    text-decoration: none;
    transition: color 0.3s ease;
  }
  
  .nav-link:hover {
    color: #6ba8ff;
    text-decoration: underline;
  }
  
  /* 新增AI特色部分样式 */
  .ai-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin: 60px auto;
    max-width: 1350px;
  }
  
  .ai-feature-card {
    background: linear-gradient(145deg, #1a1a1a, #222222);
    border-radius: 12px;
    padding: 30px;
    width: 300px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(74, 144, 226, 0.2);
  }
  
  .ai-feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(74, 144, 226, 0.2);
  }
  
  /* 英雄区域 */
  .hero-section {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../image/ai-bg.jpg') center/cover no-repeat;
    padding: 120px 20px;
    text-align: center;
    position: relative;
  }
  
  .hero-title {
    font-size: 3.5rem;
    color: white;
    margin-bottom: 20px;
    font-weight: 600;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
  }
  
  .hero-subtitle {
    font-size: 1.5rem;
    color: #e0e0e0;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
  }
  
  /* 产品展示区 */
  .product-showcase {
    max-width: 1350px;
    margin: 80px auto;
    padding: 0 20px;
  }
  
  .section-title {
    font-size: 2.5rem;
    color: white;
    text-align: center;
    margin-bottom: 60px;
    position: relative;
  }
  
  .section-title:after {
    content: '';
    position: absolute;
    width: 80px;
    height: 3px;
    background: #4a90e2;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
  }
  
  .section-subtitle {
    font-size: 1.2rem;
    color: #b0b0b0;
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
  }
  
  /* 技术展示 */
  .tech-demo {
    display: flex;
    align-items: center;
    gap: 50px;
    margin: 60px auto;
    max-width: 1200px;
    padding: 0 20px;
  }
  
  .tech-demo.reverse {
    flex-direction: row-reverse;
  }
  
  .tech-demo-content {
    flex: 1;
  }
  
  .tech-demo-image {
    flex: 1;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  }
  
  .tech-demo-title {
    font-size: 2rem;
    color: white;
    margin-bottom: 20px;
  }
  
  .tech-demo-desc {
    color: #b0b0b0;
    margin-bottom: 30px;
    line-height: 1.8;
  }
  
  /* 客户评价 */
  .testimonials {
    background: rgba(30, 87, 153, 0.1);
    padding: 80px 20px;
    margin: 80px 0;
  }
  
  .testimonial-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    max-width: 1350px;
    margin: 0 auto;
  }
  
  .testimonial-card {
    background: linear-gradient(145deg, #1a1a1a, #222222);
    border-radius: 12px;
    padding: 30px;
    width: 300px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(74, 144, 226, 0.2);
  }
  
  .testimonial-text {
    font-style: italic;
    color: #e0e0e0;
    margin-bottom: 20px;
    line-height: 1.8;
  }
  
  .testimonial-author {
    font-weight: 600;
    color: white;
  }
  
  .testimonial-company {
    color: #4a90e2;
    font-size: 0.9rem;
  }
  
  /* 底部CTA */
  .final-cta {
    background: linear-gradient(135deg, #0f2027 0%, #203a43 50%, #2c5364 100%);
    padding: 80px 20px;
    text-align: center;
  }
  
  .final-cta-title {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 20px;
  }
  
  .final-cta-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
    margin: 0 auto 40px;
  }
  
  /* 页脚 */
  .footer-info {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    padding: 40px 20px;
    background: #131313;
  }
  
  /* 详情页容器 */
  .ability-container {
    max-width: 1350px;
    margin: 60px auto;
    padding: 0 20px;
    display: flex;
    gap: 20px;
  }
  
  /* 左侧菜单 */
  .ability-menu {
    width: 280px;
    flex-shrink: 0;
  }
  
  .menu-item {
    background: linear-gradient(145deg, #1a1a1a, #222222);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid rgba(74, 144, 226, 0.2);
  }
  
  .menu-item:hover {
    transform: translateX(10px);
    background: linear-gradient(145deg, #101010, #181818);
  }
  
  .menu-item.active {
    border-color: #4a90e2;
    box-shadow: 0 0 15px rgba(74, 144, 226, 0.3);
  }
  
  /* 右侧展示区 */
  .ability-display {
    flex: 1;
    background: linear-gradient(145deg, #1a1a1a, #222222);
    border-radius: 12px;
    padding: 20px;
    min-height: 600px;
  }
  
  .video-wrapper {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    height: auto;
    max-width: 600px; /* 根据实际需要调整最大宽度 */
    margin: 0 auto;
    padding-bottom: 0;
    position: relative;
  }
  
  #main-video {
    position: absolute;
    width: 100%;
    height: auto;
    object-fit: contain; /* 保持原始比例 */
    position: static; /* 移除绝对定位 */
    border-radius: 12px;
  }
  
  /* 标题样式 */
  .ability-title {
    font-size: 2rem;
    color: #4a90e2;
    margin-bottom: 30px;
    text-align: center;
    position: relative;
  }
  
  .ability-title:after {
    content: '';
    position: absolute;
    width: 60px;
    height: 2px;
    background: #4a90e2;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
  }
  
  /* 响应式设计 */
  @media (max-width: 992px) {
    .hero-title {
      font-size: 2.8rem;
    }
    
    .tech-demo {
      flex-direction: column;
    }
    
    .tech-demo-image {
      margin-top: 30px;
      width: 100%;
    }
  }
  
  @media (max-width: 768px) {
    .hero-title {
      font-size: 2.2rem;
    }
    
    .hero-subtitle {
      font-size: 1.2rem;
    }
    
    .hero-buttons {
      flex-direction: column;
      align-items: center;
    }
    
    .section-title {
      font-size: 2rem;
    }
    
    .ability-container {
      flex-direction: column;
    }
    
    .ability-menu {
      width: 100%;
    }
    
    .menu-item {
      margin-bottom: 15px;
    }
  }
  /* 在原有样式基础上新增以下内容 */

/* 关于我们页面新增样式 */
.info-card {
    background: linear-gradient(145deg, #1a1a1a, #222222);
    border-radius: 12px;
    padding: 30px;
    margin: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    transition: transform 0.3s ease;
    }
    
    .info-card:hover {
    transform: translateY(-5px);
    }
    
    .info-card h4 {
    color: #4a90e2;
    margin: 15px 0;
    font-size: 1.3rem;
    }
    
    .info-card p {
    color: #b0b0b0;
    line-height: 1.8;
    margin: 8px 0;
    }
    
    /* 联系表单样式 */
    .contact-form {
    max-width: 800px;
    margin: 40px auto;
    padding: 30px;
    background: linear-gradient(145deg, #1a1a1a, #222222);
    border-radius: 12px;
    }
    
    .form-group {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    }
    
    .form-input {
    flex: 1;
    padding: 12px;
    background: #2c3e50;
    border: 1px solid #4a90e2;
    border-radius: 6px;
    color: white;
    font-size: 1rem;
    }
    
    .form-textarea {
    width: 100%;
    padding: 12px;
    background: #2c3e50;
    border: 1px solid #4a90e2;
    border-radius: 6px;
    color: white;
    resize: vertical;
    min-height: 150px;
    }
    
    /* 响应式调整 */
    @media (max-width: 768px) {
    .form-group {
    flex-direction: column;
    }
    
    .info-card {
    margin: 10px;
    }
    }
    .ai-feature-link {
      text-decoration: none;
      color: inherit;
    }
    .ai-feature-link:hover {
      text-decoration: none;
    }

    /* 添加IE专属hack */
_:-ms-lang(x), .video-wrapper {
  width: 600px;
  height: 400px;
}

_:-ms-lang(x), #main-video {
  position: absolute;
  width: 100% !important;
  height: 100% !important;
}

.policy-content h2 {
  color: #333;
  border-bottom: 2px solid #eee;
  padding-bottom: 15px;
  margin-bottom: 20px;
}

.policy-content p {
  margin: 10px 0;
  color: #666;
}

/* 修改后的文本区域样式 */
.policy-content {
  padding: 25px;
  line-height: 1.7;
  height: 75vh;  /* 改用视口高度单位 */
  overflow-y: auto;
  background: #1a1a1a; /* 深灰背景 */
  border-radius: 8px;
  border: 1px solid #333; /* 深色边框 */
  color: #e0e0e0; /* 浅灰文字 */
  box-shadow: 0 4px 15px rgba(0,0,0,0.3); /* 更深的阴影 */
}

/* 滚动条样式适配暗色主题 */
.policy-content::-webkit-scrollbar {
  width: 8px;
  background: #2a2a2a;
}
.policy-content::-webkit-scrollbar-thumb {
  background: #4a4a4a;
  border-radius: 4px;
}

/* 标题样式调整 */
.policy-content h2 {
  color: #fff;
  border-bottom: 2px solid #3a3a3a; /* 深色分隔线 */
  padding-bottom: 15px;
  margin-bottom: 25px;
  font-weight: 500;
}

/* 段落样式增强 */
.policy-content p {
  margin: 15px 0;
  color: #c0c0c0; /* 中灰色文字 */
  font-size: 15px;
}

/* 链接样式适配 */
.policy-content a {
  color: #6ab0f3;
  text-decoration: underline;
}

.content-item {
  display: none;
}
.content-item.active {
  display: block;
}

/* 条款层级样式 */
.clause {
  margin-left: 20px;
  border-left: 2px solid #3a3a3a;
  padding-left: 15px;
  margin-bottom: 25px;
}

h3 {
  color: #6ab0f3;
  margin: 25px 0 15px;
}

h4 {
  color: #e0e0e0;
  font-size: 15px;
  margin: 18px 0 10px;
}

.update-date {
  color: #888;
  border-bottom: 1px dashed #444;
  padding-bottom: 10px;
  margin-bottom: 30px;
}