/* 全局样式重置 - 性能优化版本 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
/* 企业愿景宣传语样式 */
.vision-statement {
  font-size: 42px;
  font-weight: 700;
  color: var(--primary-dark);
  text-align: center;
  margin: 40px 0;
  padding: 20px;
  background: linear-gradient(135deg, rgba(0, 31, 63, 0.05) 0%, rgba(0, 116, 217, 0.05) 100%);
  border-left: 4px solid var(--primary-blue);
  border-right: 4px solid var(--primary-blue);
  border-radius: 8px;
  letter-spacing: 1.5px;
  line-height: 1.4;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.vision-statement::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 116, 217, 0.1), transparent);
  transition: left 0.6s ease;
}

.vision-statement:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 31, 63, 0.15);
  background: linear-gradient(135deg, rgba(0, 31, 63, 0.08) 0%, rgba(0, 116, 217, 0.08) 100%);
}

.vision-statement:hover::before {
  left: 100%;
}
/* CSS变量定义 - 便于维护和性能优化 */
:root {
  /* 颜色变量 */
  --primary-dark: #001f3f;
  --primary-blue: #0074d9;
  --secondary-blue: #00a8e8;
  --silver: #dddddd;
  --white: #ffffff;
  --dark-blue: #111827;
  --light-gray: #f8f9fa;
  --border-color: #e0e0e0;
  --success-color: #28a745;
  --error-color: #dc3545;
  --text-primary: #333333;
  --text-secondary: #666666;

  /* 尺寸变量 */
  --container-width: 1200px;
  --header-height: 80px;
  --section-padding: 80px 0;
  --card-border-radius: 8px;
  --button-border-radius: 4px;

  /* 过渡和动画 */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--white);
  scroll-behavior: smooth;
  /* 硬件加速优化 */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* 愿景语句样式 */
.vision-statement {
  font-size: 42px;
  font-weight: 700;
  color: var(--primary-dark);
  text-align: center;
  margin: 40px 0;
  padding: 20px;
  background: linear-gradient(135deg, rgba(0, 31, 63, 0.05) 0%, rgba(0, 116, 217, 0.05) 100%);
  border-left: 4px solid var(--primary-blue);
  border-right: 4px solid var(--primary-blue);
  border-radius: 8px;
  letter-spacing: 1.5px;
  line-height: 1.4;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.vision-statement::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 116, 217, 0.1), transparent);
  transition: left 0.6s ease;
}

.vision-statement:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 31, 63, 0.15);
  background: linear-gradient(135deg, rgba(0, 31, 63, 0.08) 0%, rgba(0, 116, 217, 0.08) 100%);
}

.vision-statement:hover::before {
  left: 100%;
}

/* 响应式设计 */
@media (max-width: 768px) {
  /* 全局字体大小调整 */
  body {
    font-size: 15px;
  }
  
  .vision-statement {
    font-size: 24px;
    padding: 15px;
    margin: 30px 0;
    letter-spacing: 1px;
  }
  
  /* 移动端菜单按钮样式 */
.mobile-menu-toggle {
  display: block;
}

.mobile-menu-toggle button {
  width: 44px;
  height: 44px;
  padding: 8px;
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-menu-toggle button i {
  font-size: 20px;
  color: var(--primary-dark);
}

/* 导航栏布局调整 */
.navbar .container {
  justify-content: space-between;
}
  
  /* 语言切换按钮调整 */
  .language-switcher {
    margin-left: 15px;
  }
  
  /* 轮播图内容调整 */
  .banner-content {
    padding: 0 20px;
  }
  
  .banner-content h1 {
    font-size: 32px;
    line-height: 1.2;
  }
  
  .banner-content p {
    font-size: 16px;
  }
  
  /* 容器内边距调整 */
  .container {
    padding: 0 15px;
  }
  
  /* 解决方案卡片调整 */
  .solution-card {
    padding: 25px;
  }
  
  .solution-header {
    gap: 20px;
  }
  
  .solution-icon {
    width: 80px;
    height: 80px;
  }
  
  /* 标题字体大小调整 */
  h2 {
    font-size: 24px;
  }
  
  h3 {
    font-size: 20px;
  }
  
  h4 {
    font-size: 18px;
  }
  
  /* 正文文本调整 */
  p {
    line-height: 1.7;
  }
  
  /* 列表项文本调整 */
  ul, ol {
    padding-left: 20px;
  }
  
  li {
    line-height: 1.7;
  }
}

/* 小屏幕手机调整 (max-width: 480px) */
@media (max-width: 480px) {
  /* 全局字体大小进一步调整 */
  body {
    font-size: 14px;
  }
  
  .navbar .container {
    padding: 10px 15px;
  }
  
  .logo img {
    height: 40px;
  }
  
  .banner-content h1 {
    font-size: 28px;
  }
  
  .banner-content p {
    font-size: 14px;
  }
  
  .vision-statement {
    font-size: 20px;
    padding: 12px;
    margin: 20px 0;
  }
  
  /* 标题字体大小进一步调整 */
  h2 {
    font-size: 22px;
  }
  
  h3 {
    font-size: 18px;
  }
  
  h4 {
    font-size: 16px;
  }
  
  /* 正文文本行高调整 */
  p {
    line-height: 1.8;
  }
  
  li {
    line-height: 1.8;
  }
  
  .solution-card {
    padding: 20px;
  }
  
  .solution-title {
    font-size: 24px;
  }
  
  .solution-features ul {
    grid-template-columns: 1fr;
  }
}

/* 微信侧边栏样式 */
.wechat-sidebar {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 220px;
  background-color: var(--white);
  border-radius: var(--card-border-radius) 0 0 var(--card-border-radius);
  box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  transition: right var(--transition-normal), transform var(--transition-normal);
}

.wechat-sidebar.hidden {
  right: -220px;
}

.wechat-content {
  padding: 15px;
}

.wechat-header {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 15px;
  position: relative;
}

.wechat-header h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-dark);
  margin: 0;
}

.close-wechat {
  background: none;
  border: none;
  font-size: 16px;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background-color var(--transition-fast);
  position: absolute;
  right: 0;
}

.close-wechat:hover {
  background-color: var(--light-gray);
  color: var(--primary-dark);
}

.wechat-qr {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 10px 0;
}

.wechat-qr img {
  width: 160px;
  height: 160px;
  object-fit: contain;
  border: 1px solid var(--border-color);
  padding: 5px;
  background-color: var(--white);
}

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

/* 面包屑导航样式 */
.breadcrumb {
  display: flex;
  align-items: center;
  list-style: none;
  padding: 30px 0 20px 0; /* 增加顶部内边距避免与导航栏重叠 */
  margin: 0;
}

.breadcrumb li {
  display: inline-block;
  margin: 0;
  padding: 0;
}

.breadcrumb span {
  margin: 0 10px;
  color: #666;
}

.breadcrumb a {
  text-decoration: none;
  color: #0074d9;
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: #0056b3;
}

/* 按钮样式 */
.btn {
  display: inline-block;
  padding: 12px 24px;
  min-width: 100px;
  min-height: 44px;
  border: none;
  border-radius: var(--button-border-radius);
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  /* 减少重排的优化 */
  will-change: transform, box-shadow;
}

/* 解决方案页面样式 */
.solutions-page {
  background-color: var(--light-gray);
  padding-bottom: 80px;
}

/* 页面标题 */
.page-header {
  background-color: var(--white);
  padding: 60px 0;
  text-align: center;
  margin-bottom: 40px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.page-header h1 {
  font-size: 36px;
  color: var(--primary-dark);
  margin-bottom: 15px;
  font-weight: 700;
}

.page-header p {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto;
}

/* 解决方案内容 */
.solutions-content {
  padding: 40px 0;
}

/* 解决方案卡片 */
.solution-card {
  background-color: var(--white);
  border-radius: var(--card-border-radius);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  padding: 40px;
  margin-bottom: 40px;
  transition: transform var(--transition-normal),
    box-shadow var(--transition-normal);
}

/* 5G测试解决方案卡片背景图片 */
.solution-card:nth-child(1) {
  background-image: url("../images/5Gsolution_3.png");
  background-size: cover;
  background-position: center;
  position: relative;
}

/* 5G测试解决方案卡片背景透明度 */
.solution-card:nth-child(1)::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.7);
  border-radius: var(--card-border-radius);
  z-index: 1;
}

/* 确保内容在背景之上 */
.solution-card:nth-child(1) > * {
  position: relative;
  z-index: 2;
}

/* 将5G测试解决方案卡片中的所有文字改为黑色 */
.solution-card:nth-child(1) .solution-title,
.solution-card:nth-child(1) .solution-description p,
.solution-card:nth-child(1) .solution-features h3,
.solution-card:nth-child(1) .solution-features li {
  color: #000000;
}

/* WiFi蓝牙解决方案卡片背景图片 */
.solution-card:nth-child(2) {
  background-image: url("../images/wifisolution.jpg");
  background-size: cover;
  background-position: center;
  position: relative;
}

/* WiFi蓝牙解决方案卡片背景透明度 */
.solution-card:nth-child(2)::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.5);
  border-radius: var(--card-border-radius);
  z-index: 1;
}

/* 确保WiFi蓝牙解决方案卡片内容在背景之上 */
.solution-card:nth-child(2) > * {
  position: relative;
  z-index: 2;
}

/* 将WiFi蓝牙解决方案卡片中的所有文字改为黑色 */
.solution-card:nth-child(2) .solution-title,
.solution-card:nth-child(2) .solution-description p,
.solution-card:nth-child(2) .solution-features h3,
.solution-card:nth-child(2) .solution-features li {
  color: #000000;
}
/* 大学通信实验室解决方案卡片背景图片 */
.solution-card:nth-child(3) {
  background-image: url("../images/education.jpg");
  background-size: cover;
  background-position: center;
  position: relative;
}

/*大学通信实验室解决方案卡片背景透明度 */
.solution-card:nth-child(3)::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.5);
  border-radius: var(--card-border-radius);
  z-index: 1;
}

/* 确保大学通信实验室解决方案卡片内容在背景之上 */
.solution-card:nth-child(3) > * {
  position: relative;
  z-index: 2;
}

/* 将大学通信实验室解决方案卡片中的所有文字改为黑色 */
.solution-card:nth-child(3) .solution-title,
.solution-card:nth-child(3) .solution-description p,
.solution-card:nth-child(3) .solution-features h3,
.solution-card:nth-child(3) .solution-features li {
  color: #000000;
}

.solution-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

/* 解决方案头部 */
.solution-header {
  display: flex;
  align-items: center;
  margin-bottom: 30px;
  flex-wrap: wrap;
  gap: 30px;
}

.solution-title {
  font-size: 28px;
  color: var(--primary-dark);
  margin: 0;
  font-weight: 600;
  flex: 1;
}

.solution-icon {
  width: 120px;
  height: 120px;
  background-color: var(--light-gray);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.solution-icon img {
  width: 70%;
  height: 70%;
  object-fit: contain;
}

/* 解决方案描述 */
.solution-description {
  margin-bottom: 30px;
}

.solution-description p {
  font-size: 18px;
  line-height: 1.8;
  color: var(--text-secondary);
}

/* 解决方案特性 */
.solution-features {
  margin-bottom: 30px;
}

.solution-features h3 {
  font-size: 20px;
  color: var(--primary-dark);
  margin-bottom: 20px;
  font-weight: 600;
}

.solution-features ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 15px;
}

.solution-features li {
  font-size: 17px;
  color: var(--text-secondary);
  padding-left: 25px;
  position: relative;
  line-height: 1.6;
}

.solution-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary-blue);
  font-weight: bold;
  font-size: 18px;
}

/* 解决方案图片 */
.solution-image {
  margin-top: 30px;
  overflow: hidden;
  border-radius: var(--card-border-radius);
}

.solution-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-slow);
}

.solution-card:hover .solution-image img {
  transform: scale(1.03);
}

/* 解决方案总结 */
.solutions-summary {
  background-color: #f5f5f5;
  color: #000000;
  padding: 60px 0;
  text-align: center;
}

.solutions-summary h2 {
  font-size: 32px;
  margin-bottom: 40px;
  font-weight: 700;
}

.summary-items {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
  margin-top: 40px;
}

.summary-item {
  background-color: #ffffff;
  padding: 30px;
  border-radius: var(--card-border-radius);
  transition: transform var(--transition-normal),
    background-color var(--transition-normal);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.summary-item:hover {
  transform: translateY(-5px);
  background-color: #fafafa;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.summary-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background-color: #e0e0e0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.summary-icon svg {
  color: #666666;
}

.summary-item h3 {
  font-size: 20px;
  margin-bottom: 15px;
  font-weight: 600;
}

.summary-item p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
}

/* 页脚样式 */
footer {
  background-color: var(--dark-blue);
  color: var(--white);
  padding: 40px 0;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 30px;
  margin-bottom: 30px;
}

.footer-logo img {
  width: 150px;
  height: auto;
  /* 图片缩放优化 - 平滑渲染 */
  image-rendering: auto;
  image-rendering: smooth;
  -ms-interpolation-mode: bicubic;
  display: block;
}

.footer-info p {
  margin: 5px 0;
  color: rgba(255, 255, 255, 0.8);
}

.footer-copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
  /* 联系我们背景图片响应式调整 */
  .contact {
    background-attachment: scroll;
  }
  
  .contact::before {
    background-color: rgba(255, 255, 255, 0.85);
  }
  
  .mobile-menu-toggle {
    display: block;
  }

  .menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: white;
    z-index: 999;
    transition: left 0.3s ease;
    overflow-y: auto;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  }

  .menu.open {
    left: 0;
  }

  .menu ul {
    flex-direction: column;
    padding: 20px;
  }

  .menu ul li {
    margin-left: 0;
    margin-bottom: 20px;
  }

  .menu ul li a {
    font-size: 18px;
    padding: 12px 0;
    display: block;
    min-height: 44px;
    line-height: 20px;
  }

  .search-container {
    display: none;
  }

  .page-header h1 {
    font-size: 28px;
  }

  .page-header p {
    font-size: 16px;
  }

  .solution-card {
    padding: 30px 20px;
  }

  .solution-header {
    flex-direction: column;
    text-align: center;
  }

  .solution-title {
    font-size: 24px;
  }

  .solution-icon {
    width: 100px;
    height: 100px;
  }

  .solution-features ul {
    grid-template-columns: 1fr;
  }

  .solutions-summary h2 {
    font-size: 24px;
  }

  .summary-items {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

.btn-primary {
  background-color: #001f3f;
  color: white;
}

.btn-primary:hover {
  background-color: #003366;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 31, 63, 0.3);
}

.btn-secondary {
  background-color: transparent;
  color: #001f3f;
  border: 2px solid #001f3f;
}

.btn-secondary:hover {
  background-color: #001f3f;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 31, 63, 0.3);
}

/* 导航栏滚动效果样式 */
.navbar-scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: 10px 0;
  transition: all var(--transition-normal);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

.btn-primary {
  background-color: rgba(255, 255, 255, 0.2);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 6px;
}

.btn-primary:hover {
  background-color: #7da593;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 71, 87, 0.3);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.2);
  color: #f2f4f7;
  border: 2px solid rgba(255, 255, 255, 0.2);
  padding: 12px 24px;
  border-radius: 6px;
}

.btn-secondary:hover {
  background-color: #f59e0b;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 71, 87, 0.3);
}

.btn-product {
  background-color: #001f3f;
  color: white;
  align-self: flex-start; /* 防止在flex容器中被拉伸 */
}

.btn-product:hover {
  background-color: #0074d9;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 31, 63, 0.3);
}

.btn-submit {
  background-color: #0074d9;
  color: white;
  width: 100%;
  padding: 12px;
  font-size: 18px;
}

.btn-submit:hover {
  background-color: #0056b3;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 116, 217, 0.3);
}

/* 标题样式 */
.section-title {
  font-size: 32px;
  font-weight: 700;
  color: #001f3f;
  text-align: center;
  margin-bottom: 40px;
  position: relative;
  padding-bottom: 15px;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(to right, #0074d9, #001f3f);
  border-radius: 2px;
}

/* 导航栏样式 - 性能优化版 */
.navbar {
  background-color: rgba(255, 255, 255, 255);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(5px);
  transition: all var(--transition-normal);
  /* 硬件加速 */
  transform: translateZ(0);
  will-change: padding, background-color, box-shadow;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  gap: 20px;
}

.logo img {
  height: 50px;
  width: auto;
  /* 图片缩放优化 - 平滑渲染 */
  image-rendering: auto;
  image-rendering: smooth;
  -ms-interpolation-mode: bicubic;
  display: block;
}

/* 搜索框样式 */
.search-container {
  position: relative;
  display: flex;
  align-items: center;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
  background-color: #f8f9fa;
  border: 1px solid #ddd;
  border-radius: 25px;
  padding: 5px 10px;
  transition: all 0.3s ease;
}

.search-box:focus-within {
  border-color: #0074d9;
  box-shadow: 0 0 0 3px rgba(0, 116, 217, 0.1);
  background-color: white;
}

.search-box input {
  border: none;
  outline: none;
  background: transparent;
  padding: 8px 15px;
  font-size: 14px;
  width: 200px;
  color: #333;
}

.search-box input::placeholder {
  color: #999;
  font-size: 14px;
}

.search-box button {
  background: transparent;
  border: none;
  color: #666;
  cursor: pointer;
  padding: 5px;
  border-radius: 50%;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.search-box button:hover {
  background-color: #e9ecef;
  color: #0074d9;
  transform: scale(1.1);
}

.search-box button:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(0, 116, 217, 0.3);
}

/* 语言切换按钮样式 */
.language-switcher {
  display: flex;
  align-items: center;
  margin-left: 20px;
}

.lang-btn {
  padding: 8px 15px;
  border: 1px solid var(--border-color);
  border-radius: var(--button-border-radius);
  background-color: transparent;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: inline-block;
}

.lang-btn:hover {
  background-color: var(--primary-blue);
  color: var(--white);
  border-color: var(--primary-blue);
  transform: translateY(-1px);
  box-shadow: 0 2px 5px rgba(0, 116, 217, 0.2);
}

/* 搜索结果下拉框样式 */
.search-results {
  position: absolute;
  top: 100%;
  right: 0;
  width: 350px;
  max-height: 400px;
  background-color: white;
  border: 1px solid #ddd;
  border-radius: 8px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
  margin-top: 8px;
  overflow-y: auto;
  z-index: 1000;
  display: none;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.3s ease;
}

.search-results.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.search-result-item {
  padding: 12px 15px;
  cursor: pointer;
  border-bottom: 1px solid #f0f0f0;
  transition: background-color 0.2s ease;
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item:hover {
  background-color: #f8f9fa;
}

.search-result-item a {
  text-decoration: none;
  color: #333;
  display: block;
}

.search-result-title {
  font-weight: 500;
  margin-bottom: 4px;
  color: #333;
}

.search-result-description {
  font-size: 12px;
  color: #666;
  line-height: 1.4;
}

.search-result-category {
  font-size: 11px;
  color: #0074d9;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 4px;
}

.search-results.empty {
  padding: 20px;
  text-align: center;
  color: #999;
  font-size: 14px;
}

/* 响应式搜索框 */

.mobile-menu-toggle {
  display: none;
}

#mobile-menu-btn {
  background: transparent;
  border: none;
  color: #001f3f;
  font-size: 24px;
  cursor: pointer;
  padding: 5px;
  border-radius: 4px;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

#mobile-menu-btn:hover {
  background-color: #f8f9fa;
  transform: scale(1.1);
}

#mobile-menu-btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 31, 63, 0.1);
}

.menu ul {
  display: flex;
  list-style: none;
}

.menu ul li {
  margin-left: 30px;
}

.menu ul li a {
  color: var(--black);
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  transition: all var(--transition-normal);
  position: relative;
  padding: 5px 0;
  /* 减少重排 */
  display: inline-block;
}

.menu ul li a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #0074d9;
  transition: width 0.3s ease;
}

.menu ul li a:hover {
  color: #0074d9;
}

.menu ul li a:hover::after {
  width: 100%;
}

/* 移除移动端特定组件样式 */

/* Banner轮播样式 - 性能优化版 */
.banner {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--white);
  padding-top: 70px;
  position: relative;
  overflow: hidden;
  /* 硬件加速 */
  transform: translateZ(0);
}

/* 轮播容器 */
.banner-slider {
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
}

/* 轮播项 */
.banner-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* 轮播项1背景 */
.banner-slide:nth-child(1) {
  background-image: linear-gradient(rgba(0, 31, 63, 0.3), rgba(0, 31, 63, 0.1)),
    url("../images/lunbo2.png");
}

/* 轮播项2背景 */
.banner-slide:nth-child(2) {
  background-image: linear-gradient(rgba(0, 31, 63, 0.3), rgba(0, 31, 63, 0.1)),
    url("../images/lunbo1_2_2.jpg");
}

/* 轮播项3背景 */
.banner-slide:nth-child(3) {
  background-image: linear-gradient(rgba(0, 31, 63, 0.3), rgba(0, 31, 63, 0.1)),
    url("../images/lunbo3_2.jpg");
}

/* 移动端轮播图背景优化 */
@media (max-width: 768px) {
  .banner-slide:nth-child(1) {
    background-image: linear-gradient(rgba(0, 31, 63, 0.3), rgba(0, 31, 63, 0.1)),
      url("../images/lunbo2-mobile.png");
  }
  
  .banner-slide:nth-child(2) {
    background-image: linear-gradient(rgba(0, 31, 63, 0.3), rgba(0, 31, 63, 0.1)),
      url("../images/lunbo1_2-mobile.png");
  }
  
  .banner-slide:nth-child(3) {
    background-image: linear-gradient(rgba(0, 31, 63, 0.3), rgba(0, 31, 63, 0.1)),
      url("../images/lunbo3-mobile.jpeg");
  }
  
  /* 解决方案区域背景图片优化 */
  .solution-card:nth-child(1) {
    background-image: url("../images/5Gsolution-mobile.jpeg");
  }
  
  .solution-card:nth-child(2) {
    background-image: url("../images/wifisolution-mobile.png");
  }
  
  .solution-card:nth-child(3) {
    background-image: url("../images/education-mobile.png");
  }
  
  /* 其他背景图片优化 */
  .hero-section {
    background-image: url("../images/5Gsolution-mobile.png");
  }
  
  .support-section {
    background-image: url("../images/Support-mobile.jpg");
  }
  
  .cooperation-section {
    background-image: url("../images/cooperation-mobile.png");
  }
}

/* 活动轮播项 */
.banner-slide.active {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

/* 滑动出屏效果 */
.banner-slide.slide-out-left {
  transform: translateX(-100%);
}

.banner-slide.slide-out-right {
  transform: translateX(100%);
}

/* 解决方案卡片链接样式 */
.solution-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.solution-card-link:hover .solution-card {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.banner-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

/* 轮播控制按钮 */
.slider-control {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background-color: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  color: white;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 10;
  backdrop-filter: blur(5px);
}

.slider-control:hover {
  background-color: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.8);
  transform: translateY(-50%) scale(1.1);
}

.slider-control:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 116, 217, 0.3);
}

.slider-prev {
  left: 30px;
}

.slider-next {
  right: 30px;
}

/* 页码指示器 */
.slider-indicators {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 10;
}

.indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.indicator:hover {
  background-color: rgba(255, 255, 255, 0.5);
  transform: scale(1.2);
}

.indicator.active {
  background-color: white;
  border-color: #0074d9;
  transform: scale(1.3);
}

/* 页码计数器 */
.slider-counter {
  position: absolute;
  bottom: 40px;
  right: 40px;
  background-color: rgba(0, 0, 0, 0.5);
  color: white;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  z-index: 10;
  backdrop-filter: blur(5px);
}

.slider-counter .separator {
  margin: 0 4px;
  opacity: 0.7;
}

/* 轮播项内容样式 */
.banner-slide .container {
  position: relative;
  z-index: 1;
}

.banner-content h1 {
  font-size: 56px;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}

.banner-content p {
  font-size: 20px;
  margin-bottom: 30px;
  line-height: 1.5;
}

.banner-buttons {
  display: flex;

  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

/* 轮播预加载样式 */
.slide-loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 31, 63, 0.9);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 5;
  opacity: 1;
  transition: opacity 0.5s ease;
}

.slide-loading-overlay.loaded {
  opacity: 0;
  pointer-events: none;
}

/* 加载动画 */
.loading-spinner {
  width: 60px;
  height: 60px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top: 4px solid #ffffff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 20px;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* 加载进度条 */
.loading-progress {
  width: 200px;
  height: 4px;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 15px;
}

.loading-progress-bar {
  height: 100%;
  background-color: #0074d9;
  width: 0%;
  transition: width 0.3s ease;
}

.loading-text {
  color: white;
  font-size: 16px;
  font-weight: 500;
  text-align: center;
}

/* 加载失败状态 */
.loading-error {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 31, 63, 0.9);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 5;
  color: white;
  padding: 20px;
  text-align: center;
}

.loading-error-icon {
  font-size: 60px;
  margin-bottom: 20px;
  color: #dc3545;
}

.loading-error h3 {
  font-size: 24px;
  margin-bottom: 10px;
}

.loading-error p {
  font-size: 16px;
  margin-bottom: 20px;
  max-width: 400px;
}

.retry-button {
  background-color: #dc3545;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 4px;
  font-size: 16px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.retry-button:hover {
  background-color: #c82333;
}

/* 关于我们样式 */
.about {
  padding: 100px 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.about-content {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 50px;
}

.about-text {
  flex: 1;
}

.about-text h3 {
  font-size: 24px;
  color: #001f3f;
  margin-bottom: 15px;
  margin-top: 30px;
}

.about-text h3:first-child {
  margin-top: 0;
}

.about-text p {
  font-size: 16px;
  line-height: 1.8;
  color: #555;
  margin-bottom: 20px;
}

.about-image {
  flex: 1;
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* 左右图片水平对齐样式 */
.left-image,
.right-image {
  width: 100%;
  max-height: 250px;
  object-fit: cover;
}

.left-image img,
.right-image img {
  height: 100%;
  object-fit: cover;
}

.about-image img {
  width: 100%;
  height: auto;
  transition: transform 0.5s ease;
  vertical-align: bottom;
}

.about-image:hover img {
  transform: scale(1.05);
}

/* 图片垂直堆叠容器 */
.about-image-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* 图片水平对齐容器 */
.about-image-horizontal {
  display: flex;
  flex-direction: row;
  gap: 20px;
}

/* 发展历程样式 */
.history-section {
  margin-top: 60px;
}

.history-content {
  display: flex;
  flex-direction: row;
  align-items: center; /* 使图片与文字垂直居中对齐 */
  gap: 50px;
  margin-top: 30px;
}

.history-text {
  flex: 1;
}

.history-text h4 {
  font-size: 20px;
  color: #001f3f;
  margin-bottom: 10px;
  margin-top: 25px;
}

.history-text h4:first-child {
  margin-top: 0;
}

.history-text p {
  font-size: 16px;
  line-height: 1.8;
  color: #555;
  margin-bottom: 20px;
}

.history-image {
  flex: 0 0 55%; /* 放大图片容器宽度 */
  position: relative;
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  background-color: #f5f5f5; /* 设置背景色，避免白边 */
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  margin: 0;
  overflow: hidden;
}

.history-image img {
  width: 200px;
  height: auto;
  transition: transform 0.5s ease;
  object-fit: contain; /* 确保图片完整显示 */
  display: block; /* 消除行内元素间隙 */
  margin: 0;
  padding: 0;
}

.history-image:hover img {
  transform: scale(1.05);
}

/* 三行垂直布局内容区块样式 */
.three-row-sections {
  /* 确保与轮播组件宽度一致 */
  width: 100%;
}

/* 通用行区块样式 */
.row-section {
  /* 高度可自定义调整 */
  min-height: 350px; /* 默认最小高度，可根据需求调整 */
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

/* 背景图片通用样式 */
.row-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.2; /* 背景图片透明度 */
  z-index: 0;
}

/* 第一行 - 最新产品 */
.latest-product-section {
  /* 高度可自定义调整 */
  min-height: 700px; /* 默认最小高度，可根据需求调整 */
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.latest-product-section::before {
  background-image: url("../images/5Gsolution.jpg");
  opacity: 0.05;
}

/* 产品标题高亮 */
.product-title-highlight {
  font-size: 28px;
  font-weight: 700;
  color: #001f3f;
  margin: 20px 0;
  line-height: 1.3;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* 产品描述 */
.product-description {
  font-size: 18px;
  line-height: 1.8;
  color: #333;
  margin-bottom: 30px;
  text-align: justify;
}

/* 产品特性列表 */
.product-features {
  margin: 30px 0;
}

.product-features h3 {
  font-size: 22px;
  font-weight: 600;
  color: #001f3f;
  margin-bottom: 20px;
  padding-left: 0;
}

.product-features ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.product-features li {
  font-size: 16px;
  line-height: 1.8;
  color: #555;
  margin-bottom: 12px;
  padding-left: 30px;
  position: relative;
  transition: all 0.3s ease;
}

.product-features li::before {
  content: "\f00c";
  font-family: "Font Awesome 5 Free";
  font-weight: 900;
  position: absolute;
  left: 0;
  color: #0074d9;
}

.product-features li:hover {
  color: #001f3f;
  padding-left: 35px;
}

/* 产品常见问题 */
.product-faq {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

.product-faq h3 {
  font-size: 22px;
  font-weight: 600;
  color: #001f3f;
  margin-bottom: 20px;
  padding-left: 0;
}

.faq-item {
  margin-bottom: 20px;
}

.faq-item h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: #0074d9;
}

.faq-item p {
  font-size: 14px;
  line-height: 1.6;
  color: #555;
  margin-left: 10px;
}

/* 产品详情按钮 */
.btn-product-details {
  display: inline-flex;
  align-items: center;
  font-size: 18px;
  font-weight: 600;
  color: white;
  background-color: #001f3f;
  padding: 14px 30px;
  border-radius: 50px;
  text-decoration: none;
  transition: all 0.3s ease;
  margin-top: 20px;
  box-shadow: 0 4px 15px rgba(0, 31, 63, 0.3);
}

.btn-product-details:hover {
  background-color: #0074d9;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 116, 217, 0.4);
}

.btn-product-details i {
  margin-left: 10px;
  transition: transform 0.3s ease;
}

.btn-product-details:hover i {
  transform: translateX(5px);
}

/* 产品图片容器 */
.product-images-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 0 20px;
  max-width: 100%;
}

/* 主产品图片 */
.product-main-image {
  width: 100%;
  max-width: 700px;
  max-height: 600px;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  transition: box-shadow 0.3s ease;
  background-color: #f8f9fa;
}

.product-main-image:hover {
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

/* 产品缩略图 */
.product-thumbnail {
  cursor: pointer;
  margin: 20px 0 0 20px;
  max-width: auto;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.product-thumbnail:hover {
  transform: translateY(-3px) scale(1.1);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

/* 第二行 - 服务与支持业务 */
.row-section-2 {
  /* 高度可自定义调整 */
  min-height: 700px; /* 默认最小高度，可根据需求调整 */
  background-color: #ffffff;
}

.row-section-2::before {
  background-image: url("../images/Support_2.jpg");
}

/* 第三行 - 与我们合作 */
.row-section-3 {
  /* 高度可自定义调整 */
  min-height: 700px; /* 默认最小高度，可根据需求调整 */
  background-color: #f0f4f8;
}

.row-section-3::before {
  background-image: url("../images/cooperation.jpg");
}

/* 行内容容器 */
.row-content {
  /* 高度可自定义调整 */
  padding: 40px 0; /* 垂直内边距，可根据需求调整 */
  max-width: 100%;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}

/* 行内容文本部分 */
.row-text {
  flex: 1;
  max-width: 60%;
  text-align: left;
  padding-right: 40px;
}

/* 行内容图片部分 */
.row-image {
  flex: 0 0 30%;
  max-width: 400px;
}

.row-image img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* 图标样式 */
.row-icon {
  /* 高度可自定义调整 */
  width: 100px; /* 宽度可根据需求调整 */
  height: 100px; /* 高度可根据需求调整 */
  margin: 0 0 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  font-size: 40px;
  color: #001f3f;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* 标题样式 */
.row-section h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary-dark);
  text-align: left;
  margin-bottom: 20px;
}

/* 分隔线样式 */
.row-divider {
  width: 80px;
  height: 4px;
  background-color: #0074d9;
  margin: 0 auto 30px;
  border-radius: 2px;
}

/* 描述文本样式 */
.row-section p {
  font-size: 18px;
  line-height: 1.8;
  color: var(--text-primary);
  margin-bottom: 30px;
}

/* 链接按钮样式 */
.row-link {
  display: inline-flex;
  align-items: center;
  font-size: 18px;
  font-weight: 500;
  color: #0074d9;
  text-decoration: none;
  background-color: rgba(255, 255, 255, 0.9);
  padding: 12px 24px;
  border-radius: var(--button-border-radius);
  transition: all var(--transition-normal);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.row-link:hover {
  color: #003366;
  background-color: rgba(255, 255, 255, 1);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.row-link i {
  margin-left: 10px;
  transition: transform var(--transition-fast);
}

.row-link:hover i {
  transform: translateX(5px);
}

/* 响应式布局 */
@media (max-width: 768px) {
  .row-section {
    /* 高度可自定义调整 */
    min-height: 300px; /* 在移动端的默认最小高度，可根据需求调整 */
  }

  .row-content {
    padding: 30px 20px;
    flex-direction: column;
    text-align: center;
  }

  .row-text {
    max-width: 100%;
    padding-right: 0;
    text-align: center;
    margin-bottom: 30px;
  }

  .row-icon {
    margin: 0 auto 30px;
  }

  .row-section h2 {
    text-align: center;
  }

  .row-image {
    flex: 0 0 100%;
    max-width: 100%;
  }

  .row-icon {
    /* 高度可自定义调整 */
    width: 80px;
    height: 80px;
    font-size: 32px;
  }

  .row-section h2 {
    font-size: 26px;
  }

  .row-section p {
    font-size: 16px;
  }
}

/* 产品中心样式 */
.products {
  padding: 100px 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.product-categories {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 50px;
}

.category-btn {
  padding: 10px 25px;
  background-color: #f8f9fa;
  border: 1px solid #ddd;
  border-radius: 30px;
  cursor: pointer;
  font-size: 16px;
  transition: all 0.3s ease;
}

.category-btn:hover,
.category-btn.active {
  background-color: #001f3f;
  color: white;
  border-color: #001f3f;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 31, 63, 0.3);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
}

.product-card {
  background-color: var(--light-gray);
  border-radius: var(--card-border-radius);
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  transition: all var(--transition-normal);
  /* 减少重绘和重排 */
  transform: translateZ(0);
  will-change: transform, box-shadow;
    /* 设置为flex容器，垂直排列 */
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.product-image {
  position: relative;
  height: 200px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-image img {
  max-width: 100%;
  height: auto;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.5s ease;
  background-color: white;
  display: block;
  margin: 0 auto;
}

.product-card:hover .product-image img {
  transform: scale(1.1);
}

.product-info {
  padding: 20px 20px 20px 20px; /* 上 右 下 左 保持固定间距 */
  /* 设置为flex容器，垂直排列并占据剩余空间 */
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-info h3 {
  font-size: 20px;
  color: #001f3f;
  margin-bottom: 10px;
}

.product-info p {
  font-size: 14px;
  color: #555;
  margin-bottom: auto; /* 占据剩余空间，将按钮推到底部 */
  padding-bottom: 20px;
  line-height: 1.6;
}

/* 解决方案样式 */
.solutions {
  padding: 100px 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
}

.solution-card.home {
  background-color: white;
  border-radius: 8px;
  padding: 30px;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  position: relative;
  overflow: hidden;
}

/* 解决方案分类样式 */
.solution-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 40px;
  justify-content: center;
}

.solution-categories .category-btn {
  padding: 10px 20px;
  background-color: white;
  border: 2px solid #0074d9;
  color: #0074d9;
  border-radius: 30px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 16px;
  font-weight: 500;
}

.solution-categories .category-btn:hover,
.solution-categories .category-btn.active {
  background-color: #001f3f;
  color: white;
  border-color: #001f3f;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 31, 63, 0.3);
}

/* 解决方案卡片基本样式 */
.solution-card {
  background-color: var(--light-gray);
  border-radius: var(--card-border-radius);
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  transition: all var(--transition-normal);
  /* 减少重绘和重排 */
  transform: translateZ(0);
  will-change: transform, box-shadow;
}

.solution-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.solution-image {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.solution-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.solution-card:hover .solution-image img {
  transform: scale(1.1);
}

.solution-info {
  padding: 20px;
}

.solution-info h3 {
  font-size: 20px;
  color: #001f3f;
  margin-bottom: 10px;
}

.solution-info p {
  font-size: 14px;
  color: #555;
  margin-bottom: 20px;
  line-height: 1.6;
}

/* 隐藏类，用于动画效果 */
.solution-card.hidden {
  display: none;
}

.solution-card.home::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, #0074d9, #001f3f);
}

.solution-card.home:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.solution-icon {
  width: 80px;
  height: 80px;
  background-color: rgba(0, 116, 217, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 32px;
  color: #0074d9;
  transition: all 0.3s ease;
}

.solution-card:hover .solution-icon {
  background-color: #0074d9;
  color: white;
  transform: scale(1.1);
}

.solution-card h3 {
  font-size: 20px;
  color: #001f3f;
  margin-bottom: 15px;
}

.solution-card p {
  font-size: 14px;
  color: #555;
  line-height: 1.6;
}

/* 新闻动态样式 */
.news {
  padding: 80px 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

/* 新闻列表容器 */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

/* 新闻链接样式 - 确保整个卡片可点击 */
.news-link {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: transform 0.3s ease;
}

.news-link:hover {
  transform: translateY(-3px);
}

/* 单个新闻项 */
.news-item {
  display: flex;
  background-color: #ffffff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  position: relative;
  height: 200px; /* 固定容器高度 */
}

/* 增强悬停效果 */
.news-link:hover .news-item {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

/* 为新闻卡片添加鼠标指针样式 */
.news-link .news-item {
  cursor: pointer;
}

/* 新闻图片 */
.news-img {
  width: 280px;
  min-width: 280px;
  height: 100%;
  overflow: hidden;
}

.news-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

/* 图片悬停效果 */
.news-link:hover .news-img img {
  transform: scale(1.05);
}

/* 新闻内容 */
.news-content {
  flex: 1;
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.news-content h3 {
  font-size: 24px;
  color: #333333;
  margin-bottom: 15px;
  line-height: 1.4;
  font-weight: 600;
  transition: color 0.3s ease;
}

/* 标题悬停效果 */
.news-link:hover .news-content h3 {
  color: #0074d9;
}

.news-content p {
  font-size: 16px;
  color: #666666;
  line-height: 1.6;
  margin-bottom: 20px;
  flex: 1;
}

/* 新闻元信息 */
.news-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* 新闻日期 */
.news-date {
  font-size: 14px;
  color: #999999;
  font-weight: 500;
  text-align: right;
  line-height: 1.4;
}

/* 右箭头 */
.news-arrow {
  color: #0074d9;
  font-size: 20px;
  text-decoration: none;
  transition: all 0.3s ease;
}

/* 箭头悬停效果 */
.news-link:hover .news-arrow {
  color: #001f3f;
  transform: translateX(5px);
}

/* 新闻详情页样式 */
.news-detail {
  padding: 60px 0;
  background: linear-gradient(to bottom, #f8f9fa, #e9ecef);
}

/* 返回按钮样式 */
.back-button {
  margin-bottom: 30px;
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background-color: #f8f9fa;
  color: #0074d9;
  border: 1px solid #e9ecef;
  border-radius: 6px;
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  transition: all 0.3s ease;
}

.btn-back:hover {
  background-color: #0074d9;
  color: #ffffff;
  border-color: #0074d9;
  transform: translateX(-3px);
}

.btn-back i {
  font-size: 14px;
}

/* 新闻详情内容包装器 */
.news-content-wrapper {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 40px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  margin-bottom: 40px;
}

/* 新闻标题样式 */
.news-title {
  font-size: 32px;
  color: #001f3f;
  margin-bottom: 25px;
  line-height: 1.3;
  font-weight: 700;
  text-align: center;
}

/* 新闻元数据样式 */
.news-meta-detail {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid #e9ecef;
}

.news-meta-detail span {
  font-size: 14px;
  color: #666;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* 新闻主图样式 */
.news-main-image {
  margin-bottom: 30px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.news-main-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.3s ease;
}

.news-main-image:hover img {
  transform: scale(1.02);
}

/* 新闻详情内容样式 */
.news-content-detail {
  font-size: 16px;
  line-height: 1.8;
  color: #333;
}

.news-content-detail p {
  margin-bottom: 20px;
  text-align: justify;
}

.news-content-detail ul,
.news-content-detail ol {
  margin: 20px 0;
  padding-left: 25px;
}

.news-content-detail li {
  margin-bottom: 10px;
  line-height: 1.6;
}

/* 相关新闻样式 */
.related-news {
  background-color: #f8f9fa;
  border-radius: 8px;
  padding: 30px;
}

.related-title {
  font-size: 20px;
  color: #001f3f;
  margin-bottom: 20px;
  font-weight: 600;
}

.related-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.related-item {
  display: flex;
  align-items: center;
  padding: 15px;
  background-color: #ffffff;
  border-radius: 6px;
  text-decoration: none;
  color: #333;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.related-item::before {
  content: "→";
  color: #0074d9;
  margin-right: 10px;
  font-size: 14px;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  transform: translateX(-10px);
}

.related-item:hover {
  transform: translateX(5px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  color: #0074d9;
}

.related-item:hover::before {
  opacity: 1;
  transform: translateX(0);
}

.related-content {
  font-size: 16px;
  line-height: 1.5;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .news-item {
    flex-direction: column;
  }

  .news-img {
    flex: none;
    height: 200px;
  }

  .news-content {
    padding: 20px;
  }

  .news-content h3 {
    font-size: 20px;
  }

  .news-content-wrapper {
    padding: 20px;
  }

  .news-title {
    font-size: 24px;
  }

  .news-meta-detail {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }

  .btn-back {
    padding: 10px 16px;
    font-size: 14px;
  }
}

.news-detail-header h1 {
  font-size: 32px;
  color: #001f3f;
  margin-bottom: 20px;
  line-height: 1.3;
  font-weight: 700;
}

.news-detail-meta {
  display: flex;
  justify-content: center;
  gap: 20px;
  font-size: 16px;
  color: #666;
  margin-bottom: 30px;
}

.news-detail-meta span {
  display: flex;
  align-items: center;
  gap: 8px;
}

.news-detail-cover {
  width: 100%;
  max-height: 500px;
  overflow: hidden;
  border-radius: 8px;
  margin-bottom: 40px;
}

.news-detail-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.news-detail-content {
  max-width: 800px;
  margin: 0 auto;
  font-size: 18px;
  line-height: 1.8;
  color: #333;
}

.news-detail-content p {
  margin-bottom: 25px;
}

.news-detail-content h2 {
  font-size: 28px;
  color: #001f3f;
  margin: 40px 0 20px;
  font-weight: 600;
}

.news-detail-content h3 {
  font-size: 22px;
  color: #001f3f;
  margin: 30px 0 15px;
  font-weight: 600;
}

.news-detail-content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 20px 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.news-detail-content ul,
.news-detail-content ol {
  margin: 20px 0;
  padding-left: 30px;
}

.news-detail-content li {
  margin-bottom: 10px;
}

/* 相关新闻样式 */
.related-news {
  margin-top: 60px;
  padding: 40px 0;
  background-color: #f8f9fa;
  border-radius: 8px;
}

.related-news h3 {
  font-size: 24px;
  color: #001f3f;
  margin-bottom: 30px;
  text-align: center;
  font-weight: 600;
}

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

.related-news-item {
  background-color: #ffffff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
}

.related-news-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.related-news-img {
  height: 180px;
  overflow: hidden;
}

.related-news-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.related-news-item:hover .related-news-img img {
  transform: scale(1.05);
}

.related-news-content {
  padding: 20px;
}

.related-news-title {
  font-size: 18px;
  color: #001f3f;
  margin-bottom: 10px;
  line-height: 1.4;
  font-weight: 600;
  transition: color 0.3s ease;
}

.related-news-item:hover .related-news-title {
  color: #0074d9;
}

.related-news-date {
  font-size: 14px;
  color: #999;
  display: block;
  margin-top: 15px;
}

.read-more {
  display: inline-block;
  color: #0074d9;
  text-decoration: none;
  font-weight: 500;
  position: relative;
  padding-right: 15px;
  transition: all 0.3s ease;
}

.read-more::after {
  content: "→";
  position: absolute;
  right: 0;
  top: 0;
  transition: transform 0.3s ease;
}

.read-more:hover {
  color: #001f3f;
}

.read-more:hover::after {
  transform: translateX(5px);
}

/* 联系我们样式 */
.contact {
  padding: 100px 0;
  background-image: url('../images/contact.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: #333;
  position: relative;
}

/* 添加半透明叠加层以提高内容可读性 */
.contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.8);
  z-index: 1;
}

/* 确保内容在叠加层之上 */
.contact > * {
  position: relative;
  z-index: 2;
}

.contact .section-title {
  color: #001f3f;
}

.contact .section-title::after {
  background: linear-gradient(to right, #0074d9, #ffffff);
}

.contact-content {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 50px;
  align-items: flex-start;
}

.contact-image {
  width: 100%;
  margin-bottom: 30px;
  text-align: center;
  grid-column: 2;
  grid-row: 1;
}

.contact-image img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.contact-info {
  background-color: white;
  border-radius: 8px;
  padding: 30px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  grid-column: 2;
  grid-row: 1;
  background-color: #e3f2fd;
  border-left: 4px solid #0074d9;
}

.info-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 30px;
  gap: 20px;
}

.info-item i {
  font-size: 24px;
  color: #0074d9;
  margin-top: 5px;
}

.info-item h4 {
  font-size: 18px;
  margin-bottom: 10px;
  color: #333;
  font-weight: 500;
}

.info-item p {
  font-size: 16px;
  color: #666;
  line-height: 1.6;
}

.contact-form {
  grid-column: 1;
  grid-row: 1;
  background-color: white;
  border-radius: 8px;
  padding: 30px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* 响应式设计 - 小屏幕设备 */
@media (max-width: 768px) {
  .contact-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .contact-form {
    grid-column: 1;
    grid-row: 1;
  }
  
  .contact-image {
    grid-column: 1;
    grid-row: 2;
  }
  
  .contact-info {
    grid-column: 1;
    grid-row: 3;
  }
  
  .contact {
    padding: 60px 0;
  }
}

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

.form-group label {
  display: block;
  font-size: 16px;
  font-weight: 500;
  color: #001f3f;
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 16px;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #0074d9;
  box-shadow: 0 0 0 3px rgba(0, 116, 217, 0.1);
}

/* 页脚样式 */
footer {
  background-color: #ffffff;
  color: #333;
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-logo img {
  height: auto;
  width: auto;
  max-width: 100%;
  max-height: 90px;
  margin: 0 auto 20px;
  display: block;
  object-fit: contain;
  /* 图片缩放优化 - 防止锯齿 */
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  -ms-interpolation-mode: nearest-neighbor;
}

.footer-logo {
  text-align: center;
}

.footer-logo p {
  font-size: 14px;
  color: #000;
  line-height: 1.6;
}

.footer-links h4,
.footer-contact h4,
.footer-social h4 {
  font-size: 18px;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-links h4::after,
.footer-contact h4::after,
.footer-social h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 2px;
  background-color: #0074d9;
}

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

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

.footer-links ul li a {
  color: #666;
  text-decoration: none;
  font-size: 14px;
  transition: all 0.3s ease;
}

.footer-links ul li a:hover {
  color: #0074d9;
  padding-left: 5px;
}

.footer-contact p {
  font-size: 14px;
  color: #666;
  margin-bottom: 15px;
  line-height: 1.6;
}

.footer-contact p i {
  color: #0074d9;
  margin-right: 10px;
}

.social-icons {
  display: flex;
  gap: 15px;
}

.social-icon {
  width: 40px;
  height: 40px;
  background-color: #e9ecef;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #333;
  font-size: 18px;
  transition: all 0.3s ease;
  text-decoration: none;
}

.social-icon:hover {
  background-color: #0074d9;
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(0, 116, 217, 0.3);
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid #e9ecef;
  font-size: 14px;
  color: #666;
}

/* 响应式设计 - 性能优化版 */
/* 使用媒体查询时保持简单和高效 */

/* 动画样式优化 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 产品卡片隐藏类 - 用于产品过滤 */
.product-card.hidden {
  display: none;
}

/* 图像优化 */
img {
  max-width: 100%;
  height: auto;
  /* 渐进式加载 */
  image-rendering: auto;
  image-rendering: crisp-edges;
  image-rendering: pixelated;
}

/* 大尺寸产品图片样式 */
.large-product-image {
  max-width: none !important;
  width: 150px !important;
  height: 100px !important;
  display: block !important;
}

/* 减少DOM操作的CSS类 */
.no-transition {
  transition: none !important;
}

/* 通用页面标题栏样式 */
.page-header {
  background-color: white;
  color: #333;
  padding: 120px 0 40px;
  text-align: center;
}
.page-header h1 {
  font-size: 42px;
  margin-bottom: 15px;
}
.page-header .breadcrumb {
  color: rgba(51, 51, 51, 0.7);
  padding: 15px 0; /* 修改前为 0 */
}
.page-header .breadcrumb a {
  color: #001f3f;
}

/* 产品详情页样式 */
.product-detail-container {
  padding: 60px 0;
}
.product-detail-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: flex-start;
}
.product-image-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: relative;
}
.product-main-image {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  min-height: 200px;
  max-height: 80vh;
  height: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #f9f9f9;
}
.product-main-image img {
  width: auto;
  max-width: 100%;
  height: auto;
  max-height: 80vh;
  min-height: 200px;
  object-fit: contain;
  transition: transform 0.3s ease;
  display: block;
  margin: 0 auto;
  image-rendering: auto;
  image-rendering: high-quality;
  image-rendering: optimizeQuality;
  -webkit-backface-visibility: hidden;
  -moz-backface-visibility: hidden;
  backface-visibility: hidden;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .product-main-image {
    min-height: 250px;
  }
  .product-main-image img {
    height: auto;
    max-height: 100%;
    min-width: auto;
    min-height: auto;
  }
}

@media (max-width: 480px) {
  .product-main-image {
    min-height: 180px;
  }
  .product-main-image img {
    height: auto;
    max-height: 100%;
    min-width: auto;
    min-height: auto;
  }
}
.product-main-image:hover img {
  transform: scale(1.02);
  image-rendering: auto;
  image-rendering: high-quality;
  image-rendering: optimizeQuality;
}
.product-thumbnails {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}
.product-thumbnail {
  flex: 0 0 calc(25% - 8px);
  aspect-ratio: 1;
  border-radius: 6px;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.3s ease;
}
.product-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background-color: white;
  display: block;
}
.product-thumbnail.active,
.product-thumbnail:hover {
  border-color: #001f3f;
}
.product-info-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* 核心卖点样式 */
.product-highlights {
  background-color: #f8f9fa;
  padding: 20px;
  border-radius: 8px;
}

.product-highlights h3 {
  font-size: 18px;
  font-weight: 600;
  color: #001f3f;
  margin-bottom: 15px;
}

.product-highlights ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.product-highlights li {
  padding: 8px 0;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: #333;
}

.product-highlights i {
  color: #0074d9;
  font-size: 18px;
  margin-top: 2px;
  flex-shrink: 0;
}

/* 产品操作按钮样式 */
.product-actions {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
  margin: 20px 0;
}



.contact-info p {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #001f3f;
  margin-bottom: 10px;
}

.contact-info .consult-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #0074d9;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.3s ease;
}

.contact-info .consult-link:hover {
  color: #0056b3;
  text-decoration: underline;
}

/* 图片导航按钮样式 */
.image-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(255, 255, 255, 0.8);
  border: none;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  font-size: 24px;
  color: #001f3f;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  z-index: 10;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.image-nav-btn:hover {
  background-color: white;
  transform: translateY(-50%) scale(1.1);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.prev-btn {
  left: 10px;
}

.next-btn {
  right: 10px;
}

/* 加载和错误状态样式 */
.loading,
.error-message {
  text-align: center;
  padding: 60px 20px;
  color: #555;
}

.error-message {
  background-color: #f8d7da;
  color: #721c24;
  border-radius: 8px;
  margin: 20px 0;
}
.product-category-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.product-category-tag {
  background-color: #f0f0f0;
  color: #333;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
}
.product-title {
  font-size: 28px;
  font-weight: 700;
  color: #001f3f;
  line-height: 1.3;
}
.product-description {
  font-size: 16px;
  line-height: 1.6;
  color: #555;
}
.product-actions {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}
.product-specs {
  margin-top: 20px;
}
.product-specs h3 {
  font-size: 24px;
  font-weight: 700;
  color: #001f3f;
  margin-bottom: 30px;
  text-align: center;
}
/* 应用场景样式 */
.scenarios-list {
  display: grid;
  gap: 20px;
}

.scenario-item {
  background-color: white;
  padding: 20px;
  border-radius: 8px;
  border-left: 4px solid #3498db;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.scenario-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.scenario-item h4 {
  margin-top: 0;
  margin-bottom: 10px;
  color: #2c3e50;
  font-size: 18px;
}

.scenario-item p {
  margin: 0;
  color: #555;
  line-height: 1.6;
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
}
.specs-table th,
.specs-table td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid #e0e0e0;
}
.specs-table td {
  white-space: pre-line;
}
.specs-table th {
  background-color: #f8f9fa;
  font-weight: 600;
  color: #333;
  width: 30%;
}
.specs-table td {
  color: #555;
}
.product-features {
  margin-top: 60px;
}
.product-features h3 {
  font-size: 24px;
  font-weight: 700;
  color: #001f3f;
  margin-bottom: 30px;
  text-align: center;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.feature-card {
  background-color: #f8f9fa;
  border-radius: 8px;
  padding: 25px;
  text-align: center;
  transition: all 0.3s ease;
}
.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  background-color: white;
}
.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #001f3f;
  color: white;
  border-radius: 50%;
  font-size: 32px;
}
.feature-title {
  font-size: 18px;
  font-weight: 600;
  color: #001f3f;
  margin-bottom: 15px;
}
.feature-description {
  font-size: 14px;
  line-height: 1.6;
  color: #666;
}
.related-products {
  margin-top: 60px;
}
.related-products h3 {
  font-size: 24px;
  font-weight: 700;
  color: #001f3f;
  margin-bottom: 30px;
  text-align: center;
}
.related-products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.related-product-card {
  background-color: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}
.related-product-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}
.related-product-image {
  height: 200px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.related-product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.related-product-card:hover .related-product-image img {
  transform: scale(1.05);
}
.related-product-info {
  padding: 20px;
}
.related-product-title {
  font-size: 18px;
  font-weight: 600;
  color: #001f3f;
  margin-bottom: 10px;
  line-height: 1.3;
}
.related-product-description {
  font-size: 14px;
  line-height: 1.5;
  color: #666;
  margin-bottom: 15px;
}
.related-product-link {
  color: #001f3f;
  font-weight: 500;
  text-decoration: none;
  display: inline-block;
  position: relative;
}
.related-product-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background-color: #001f3f;
  transition: width 0.3s ease;
}
.related-product-link:hover::after {
  width: 100%;
}
.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 200px;
}
.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid #f3f3f3;
  border-top: 4px solid #001f3f;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.error-message {
  background-color: #f8d7da;
  color: #721c24;
  padding: 15px;
  border-radius: 6px;
  margin: 20px 0;
  text-align: center;
}
/* 产品详情页响应式设计 */

/* 解决方案详情页样式 */
.solution-detail-container {
  padding: 60px 0;
}
.solution-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: flex-start;
  margin-bottom: 40px;
}
/* 解决方案详情页图片样式 - 复用产品详情页的图片结构样式 */
.solution-image-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.solution-main-image {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}
.solution-main-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.solution-main-image:hover img {
  transform: scale(1.02);
}
.solution-thumbnails {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.solution-thumbnail {
  flex: 0 0 calc(25% - 8px);
  aspect-ratio: 1;
  border-radius: 6px;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.3s ease;
}
.solution-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.solution-thumbnail.active,
.solution-thumbnail:hover {
  border-color: #001f3f;
}

.solution-info-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.solution-category-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.solution-category-tag {
  background-color: #f0f0f0;
  color: #333;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
}
.solution-title {
  font-size: 28px;
  font-weight: 700;
  color: #001f3f;
  line-height: 1.3;
}
.solution-description {
  font-size: 16px;
  line-height: 1.6;
  color: #555;
}
.solution-actions {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}
.solution-specs {
  margin-top: 20px;
}
.solution-specs h3 {
  font-size: 22px;
  font-weight: 600;
  color: #001f3f;
  margin-bottom: 20px;
}
.solution-features {
  margin-top: 60px;
}
.solution-features h3 {
  font-size: 24px;
  font-weight: 700;
  color: #001f3f;
  margin-bottom: 30px;
  text-align: center;
}
.solution-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.solution-feature-card {
  background-color: #f8f9fa;
  border-radius: 8px;
  padding: 25px;
  text-align: center;
  transition: all 0.3s ease;
}
.solution-feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  background-color: white;
}
.solution-feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #001f3f;
  color: white;
  border-radius: 50%;
  font-size: 32px;
}
.solution-feature-title {
  font-size: 18px;
  font-weight: 600;
  color: #001f3f;
  margin-bottom: 15px;
}
.solution-feature-description {
  font-size: 14px;
  line-height: 1.6;
  color: #666;
}
.related-cases {
  margin-top: 60px;
}
.related-cases h3 {
  font-size: 24px;
  font-weight: 700;
  color: #001f3f;
  margin-bottom: 30px;
  text-align: center;
}
.related-case {
  background-color: #f8f9fa;
  border-radius: 8px;
  padding: 30px;
  margin-bottom: 30px;
  transition: all 0.3s ease;
}
.related-case:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  background-color: white;
}
.related-case-title {
  font-size: 20px;
  font-weight: 600;
  color: #001f3f;
  margin-bottom: 15px;
}
.related-case-description {
  font-size: 16px;
  line-height: 1.6;
  color: #555;
  margin-bottom: 20px;
}
.related-case-result {
  background-color: #e3f2fd;
  border-left: 4px solid #001f3f;
  padding: 15px;
  border-radius: 4px;
}
.related-case-result h4 {
  font-size: 16px;
  font-weight: 600;
  color: #001f3f;
  margin-bottom: 10px;
}
.related-case-result p {
  font-size: 14px;
  line-height: 1.5;
  color: #333;
}
.related-solutions {
  margin-top: 60px;
}
.related-solutions h3 {
  font-size: 24px;
  font-weight: 700;
  color: #001f3f;
  margin-bottom: 30px;
  text-align: center;
}
.related-solutions-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.related-solution-card {
  background-color: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}
.related-solution-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}
.related-solution-image {
  height: 200px;
  overflow: hidden;
}
.related-solution-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.related-solution-card:hover .related-solution-image img {
  transform: scale(1.05);
}
.related-solution-info {
  padding: 20px;
}
.related-solution-category-tag {
  background-color: #f0f0f0;
  color: #333;
  padding: 4px 10px;
  border-radius: 15px;
  font-size: 12px;
  font-weight: 500;
  display: inline-block;
  margin-bottom: 10px;
}
.related-solution-title {
  font-size: 18px;
  font-weight: 600;
  color: #001f3f;
  margin-bottom: 10px;
  line-height: 1.3;
}
.related-solution-description {
  font-size: 14px;
  line-height: 1.5;
  color: #666;
  margin-bottom: 15px;
}
.related-solution-link {
  color: #001f3f;
  font-weight: 500;
  text-decoration: none;
  display: inline-block;
  position: relative;
}
.related-solution-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background-color: #001f3f;
  transition: width 0.3s ease;
}
.related-solution-link:hover::after {
  width: 100%;
}

/* 返回顶部按钮样式 */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background-color: #001f3f;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 999;
  box-shadow: 0 4px 12px rgba(0, 31, 63, 0.3);
  font-size: 20px;
  /* 硬件加速 */
  transform: translateZ(0);
  will-change: opacity, transform;
}

.back-to-top:hover {
  background-color: #003366;
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 6px 15px rgba(0, 31, 63, 0.4);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .back-to-top {
    width: 45px;
    height: 45px;
    bottom: 20px;
    right: 20px;
    font-size: 18px;
  }
}

/* 解决方案页面样式 - 复用通用页面标题栏样式 */
.solutions-section {
  padding: 60px 0;
}
.solutions-section .section-title {
  text-align: center;
  margin-bottom: 50px;
  font-size: 32px;
  font-weight: 700;
  color: #001f3f;
}
.solution-categories {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
  margin-bottom: 50px;
}
.category-button {
  background-color: #f0f0f0;
  color: #333;
  border: none;
  padding: 12px 24px;
  border-radius: 30px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}
.category-button:hover,
.category-button.active {
  background-color: #001f3f;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 31, 63, 0.3);
}
.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.solution-card {
  background-color: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}
.solution-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}
.solution-card-image {
  height: 220px;
  overflow: hidden;
}
.solution-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.solution-card:hover .solution-card-image img {
  transform: scale(1.05);
}
.solution-card-content {
  padding: 25px;
}
.solution-card-category {
  background-color: #f0f0f0;
  color: #333;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  display: inline-block;
  margin-bottom: 15px;
}
.solution-card-title {
  font-size: 20px;
  font-weight: 600;
  color: #001f3f;
  margin-bottom: 15px;
  line-height: 1.3;
}
.solution-card-description {
  font-size: 15px;
  line-height: 1.6;
  color: #666;
  margin-bottom: 20px;
}
.solution-card-button {
  display: inline-block;
  background-color: #001f3f;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s ease;
}
.solution-card-button:hover {
  background-color: #003366;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 31, 63, 0.3);
}