/* 重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: #333;
  background-color: #f5f7fa;
}

a {
  text-decoration: none;
  color: inherit;
}

ul, li {
  list-style: none;
}

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

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

/* ==================== 主导航条 ==================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: #fff;
  /* box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08); */
  z-index: 1000;
  transition: all 0.3s ease;
}

/* .header.scrolled {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
} */

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  height: 100%;
}

.logo a {
  display: flex;
  align-items: center;
  height: 100%;
}

.logo img {
  height: 40px;
  width: auto;
  transition: transform 0.3s ease;
}

.logo:hover img {
  transform: scale(1.05);
}

/* 导航菜单 */
.nav-menu {
  flex: 1;
  display: flex;
  justify-content: flex-start;
  margin: 0 40px;
  margin-left: 60px;
  /* 完全移除 overflow 限制，允许下拉菜单显示 */
  /* 注意: overflow-x 和 overflow-y 不能同时使用 auto 和 visible */
  /* 浏览器会强制将 visible 转换为 auto，导致下拉菜单被裁剪 */
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 24px;
  white-space: nowrap;
}

.nav-item {
  position: relative;
}

.nav-item a {
  display: block;
  padding: 24px 10.5px;
  font-size: 16px;
  color: #333;
  font-weight: 400;
  transition: color 0.3s ease;
  position: relative;
}

.nav-item a::after {
  /* 蓝色滑动条已移除 */
}

.nav-item:hover a {
  color: #1E6FFF;
}

.nav-item.active a {
  color: #1E6FFF;
  font-weight: 500;
}

/* ==================== 一级导航下拉菜单 ==================== */
/* PC端样式 - 完全复刻三级导航的实现 */
.main-nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
  padding: 12px 0;
  min-width: 150px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none; /* 隐藏时不接收鼠标事件 */
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
}

/* PC端悬停显示 */
@media screen and (min-width: 1025px) {
  .nav-item.has-main-dropdown:hover .main-nav-dropdown {
      opacity: 1;
      visibility: visible;
      pointer-events: auto; /* 显示时恢复鼠标事件 */
      transform: translateX(-50%) translateY(0);
  }
}

/* 一级导航列表 */
.main-nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.main-nav-item {
  position: relative;
}

/* ==================== 样式模式1: 左侧icon,右侧title+desc ==================== */
.main-nav-style-1 .main-nav-link {
  display: flex;
  align-items: center;
  padding: 12px 20px;
  gap: 12px;
  transition: all 0.2s ease;
  color: #333;
}

.main-nav-style-1 .main-nav-link:hover {
  background-color: #F3F7FF;
}

.main-nav-style-1 .main-nav-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #F5F8FF 0%, #E8F0FF 100%);
  border-radius: 8px;
}

.main-nav-style-1 .main-nav-icon img {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.main-nav-style-1 .main-nav-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.main-nav-style-1 .main-nav-title {
  font-size: 14px;
  font-weight: 500;
  color: #1a1a1a;
  line-height: 1.4;
}

.main-nav-style-1 .main-nav-desc {
  font-size: 12px;
  color: #999;
  line-height: 1.4;
}

.main-nav-style-1 .main-nav-link:hover .main-nav-title {
  color: #1E6FFF;
}

.main-nav-style-1 .main-nav-link:hover .main-nav-icon {
  background: linear-gradient(135deg, #1E6FFF 0%, #4A8FFF 100%);
}

.main-nav-style-1 .main-nav-link:hover .main-nav-icon img {
  filter: brightness(0) invert(1);
}

/* ==================== 样式模式2: 只显示title ==================== */
.main-nav-style-2 .main-nav-link {
  display: block;
  padding: 10px 24px;
  color: #333;
  transition: all 0.2s ease;
  position: relative;
}

.main-nav-style-2 .main-nav-link:hover {
  background-color: #F3F7FF;
  color: #1E6FFF;
  padding-left: 28px;
}

.main-nav-style-2 .main-nav-title {
  font-size: 14px;
  font-weight: 400;
  color: #333;  /* 默认黑色 */
  white-space: nowrap;
}

.main-nav-style-2 .main-nav-link:hover .main-nav-title {
  color: #1E6FFF;  /* 鼠标悬浮时变蓝色 */
}

.main-nav-style-2 .main-nav-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 16px;
  background: linear-gradient(180deg, #1E6FFF 0%, #4A8FFF 100%);
  transition: width 0.2s ease;
  border-radius: 0 2px 2px 0;
}

.main-nav-style-2 .main-nav-link:hover::before {
  width: 3px;
}

/* 右侧操作区 */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.phone-info {
  display: flex;
  align-items: center;
  gap: 4px;
}

.phone-icon {
  width: 22px;
  height: 22px;
}

.phone-number {
  font-size: 15px;
  color: #3975FF;
  font-weight: 500;
}

/* 按钮基础样式 */
.btn-trial {
  padding: 5px 14px;
  font-size: 14px;
  font-weight: 400;
  border-radius: 4px;
  transition: all 0.3s ease;
  cursor: pointer;
  white-space: nowrap;
  display: inline-block;
}

/* 描边按钮 - 免费试用 */
.btn-trial.btn-outline {
  background: #fff;
  color: #333;
  border: 1px solid #D8D8D8;
  box-shadow: none;
}

.btn-trial.btn-outline:hover {
  border-color: #1E6FFF;
  color: #1E6FFF;
  background: #F5F8FF;
}

/* 主要按钮 - 产品演示 */
.btn-trial.btn-primary {
  background: linear-gradient(135deg, #1E6FFF 0%, #4A8FFF 100%);
  color: #fff;
  border: none;
  box-shadow: 0 2px 8px rgba(30, 111, 255, 0.3);
}

.btn-trial.btn-primary:hover {
  background: linear-gradient(135deg, #0D5FEF 0%, #3A7FEF 100%);
  box-shadow: 0 4px 12px rgba(30, 111, 255, 0.4);
  transform: translateY(-2px);
}

.btn-trial.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(30, 111, 255, 0.3);
}

/* ==================== 二级导航 ==================== */
.sub-nav {
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  width: 100%;
  background-color: #EDF1F6;
  border-bottom: 1px solid #E5E7EB;
  z-index: 999;
  /* box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04); */
  transition: all 0.3s ease;
}

.sub-nav-wrapper {
  display: flex;
  align-items: center;
  height: 56px;
}

/* 二级导航标题 */
.sub-nav-title {
  width: 200px;
}

.sub-nav-title h2 {
  font-size: 18px;
  font-weight: 500;
  color: #1a1a1a;
  margin: 0;
  white-space: nowrap;
}

/* 二级导航列表 */
.sub-nav-list {
  display: flex;
  align-items: center;
  gap: 40px;
  flex: 1;
}

.sub-nav-item {
  position: relative;
}

.sub-nav-item > a {
  display: block;
  padding: 18px 0;
  font-size: 15px;
  color: #666;
  font-weight: 400;
  transition: all 0.3s ease;
  white-space: nowrap;
  position: relative;
}

/* 二级导航激活状态 */
.sub-nav-item.active > a {
  color: #1E6FFF;
  font-weight: 500;
}

.sub-nav-item.active > a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, #1E6FFF 0%, #4A8FFF 100%);
}

/* 二级导航悬停效果 */
.sub-nav-item:hover > a {
  color: #1E6FFF;
}

/* ==================== 三级导航下拉菜单 ==================== */
/* PC端样式 */
.third-nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
  padding: 12px 0;
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
}

/* PC端悬停显示 */
@media screen and (min-width: 1025px) {
  .sub-nav-item.has-dropdown:hover .third-nav-dropdown {
      opacity: 1;
      visibility: visible;
      transform: translateX(-50%) translateY(0);
  }
}

/* 三级导航列表 */
.third-nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.third-nav-item {
  position: relative;
}

.third-nav-item a {
  display: block;
  padding: 10px 24px;
  font-size: 14px;
  color: #333;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.third-nav-item a:hover {
  background-color: #F3F7FF;
  color: #1E6FFF;
  padding-left: 28px;
}

.third-nav-item a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 16px;
  background: linear-gradient(180deg, #1E6FFF 0%, #4A8FFF 100%);
  transition: width 0.2s ease;
  border-radius: 0 2px 2px 0;
}

.third-nav-item a:hover::before {
  width: 3px;
}

/* 主内容区域 */
.main-content {
  margin-top: 126px; /* 70px (主导航) + 56px (二级导航) */
  min-height: calc(100vh - 126px);
}

/* ==================== 移动端菜单 ==================== */
/* 汉堡菜单按钮 */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.mobile-menu-btn span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: #333;
  transition: all 0.3s ease;
}

/* 移动端侧边栏 */
.mobile-sidebar {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  height: 100vh;
  background-color: #fff;
  z-index: 1005;
  transition: right 0.3s ease;
  overflow-y: auto;
  box-shadow: -2px 0 8px rgba(0, 0, 0, 0.1);
}

.mobile-sidebar.active {
  right: 0;
}

/* 侧边栏头部 */
.mobile-sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid #E5E7EB;
}

.mobile-sidebar-logo {
  height: 32px;
}

.mobile-sidebar-logo img {
  height: 100%;
  width: auto;
}

/* 关闭按钮 */
.mobile-sidebar-close {
  width: 24px;
  height: 24px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  position: relative;
}

.mobile-sidebar-close span {
  position: absolute;
  width: 18px;
  height: 2px;
  background-color: #1E6FFF;
  top: 50%;
  left: 50%;
  transition: all 0.3s ease;
}

.mobile-sidebar-close span:first-child {
  transform: translate(-50%, -50%) rotate(45deg);
}

.mobile-sidebar-close span:last-child {
  transform: translate(-50%, -50%) rotate(-45deg);
}

/* 侧边栏导航 */
.mobile-sidebar-nav {
  padding: 8px 0;
}

.mobile-nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mobile-nav-item {
  border-bottom: 1px solid #F0F0F0;
}

.mobile-nav-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  color: #333;
  text-decoration: none;
  font-size: 15px;
  transition: background-color 0.3s ease;
}

.mobile-nav-link:hover {
  background-color: #F7F8FA;
}

.mobile-nav-item.active > .mobile-nav-link {
  color: #1E6FFF;
}

/* 箭头图标 */
.mobile-nav-arrow {
  width: 12px;
  height: 12px;
  border-right: 2px solid #999;
  border-bottom: 2px solid #999;
  transform: rotate(45deg);
  transition: transform 0.3s ease;
}

.mobile-nav-item.active .mobile-nav-arrow {
  transform: rotate(-135deg);
}

/* 子菜单 */
.mobile-sub-menu {
  list-style: none;
  padding: 0;
  margin: 0;
  max-height: 0;
  overflow: hidden;
  background-color: #F7F8FA;
  transition: max-height 0.3s ease;
}

.mobile-nav-item.active .mobile-sub-menu {
  max-height: 500px;
}

.mobile-sub-menu li {
  border-bottom: 1px solid #E5E7EB;
}

.mobile-sub-menu li:last-child {
  border-bottom: none;
}

.mobile-sub-menu a {
  display: block;
  padding: 12px 20px 12px 40px;
  color: #666;
  text-decoration: none;
  font-size: 14px;
  transition: all 0.3s ease;
}

.mobile-sub-menu a:hover {
  background-color: #fff;
  color: #1E6FFF;
  padding-left: 44px;
}

/* 遮罩层 */
.mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1001;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.mobile-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ==================== 页脚 ==================== */
.footer {
  background-color: #fff;
}

/* 页脚主区域 */
.footer-main {
  padding: 60px 0;
  border-bottom: 1px solid #E5E7EB;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 60px;
}

/* 左侧菜单列 */
.footer-columns {
  display: flex;
  gap: 60px;
  flex: 1;
}

.footer-column {
  flex: 1;
  min-width: 140px;
}

.footer-title {
  font-size: 16px;
  font-weight: 600;
  color: #1a1a1a;
  margin: 0 0 20px 0;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  font-size: 14px;
  color: #666;
  text-decoration: none;
  transition: color 0.3s ease;
  display: inline-block;
}

.footer-links a:hover {
  color: #1E6FFF;
}

/* 右侧咨询热线 */
.footer-contact {
  min-width: 200px;
  text-align: right;
}

.footer-phone {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  margin-bottom: 8px;
}

.footer-phone-icon {
  width: 24px;
  height: 24px;
}

.footer-phone-label {
  font-size: 14px;
  color: #666;
}

.footer-phone-number {
  font-size: 18px;
  font-weight: 600;
  color: #3975FF;
  margin-bottom: 24px;
}

.footer-qrcode {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.qrcode-placeholder {
  width: 120px;
  height: 120px;
  margin-bottom: 12px;
}

.qrcode-image {
  width: 100%;
  height: 100%;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  object-fit: contain;
}

.qrcode-text {
  font-size: 12px;
  color: #666;
  margin: 0;
}

/* 热门链接和友情链接区域 */
.footer-links-section {
  background-color: #F7F8FA;
  padding: 24px 0;
  border-bottom: 1px solid #E5E7EB;
}

.footer-links-group {
  display: flex;
  align-items: flex-start;
  margin-bottom: 12px;
}

.footer-links-group:last-child {
  margin-bottom: 0;
}

.links-label {
  font-size: 14px;
  color: #333;
  font-weight: 500;
  white-space: nowrap;
  margin-right: 12px;
  padding-top: 2px;
}

.links-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.links-list a {
  font-size: 13px;
  color: #666;
  text-decoration: none;
  transition: color 0.3s ease;
  white-space: nowrap;
}

.links-list a:hover {
  color: #1E6FFF;
}

/* 版权信息 */
.footer-copyright {
  background-color: #F7F8FA;
  padding: 20px 0;
}

/* PC端隐藏移动端底部导航 */
.mobile-bottom-nav {
  display: none;
}

.copyright-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.copyright-left,
.copyright-center,
.copyright-right {
  font-size: 12px;
  color: #999;
}
.links {
  display: flex;
  gap: 10px 20px;
  justify-content: flex-start;
  flex-direction: row;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.copyright-center {
  text-align: center;
}

.copyright-right a {
  color: #999;
  text-decoration: none;
  transition: color 0.3s ease;
}

.copyright-right a:hover {
  color: #1E6FFF;
}

/* ==================== 页面大纲目录 ==================== */
.page-outline {
  position: fixed;
  left: -180px;
  top: 45%;
  max-width: 160px;
  min-width: 120px;
  background: #fff;
  border-radius: 0 12px 12px 0;
  padding: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  z-index: 100;
  max-height: calc(100vh - 250px);
  overflow-y: auto;
  opacity: 0;
  transition: all 0.3s ease;
}

.page-outline.visible {
  left: 0;
  opacity: 1;
}

.outline-content {
  width: 100%;
}

.outline-title {
  font-size: 16px;
  font-weight: 600;
  color: #1a1a1a;
  margin: 0 0 16px 0;
}

.outline-nav {
  width: 100%;
}

.outline-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.outline-item {
  list-style: none;
  margin: 4px 0;
}

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

.outline-link {
  display: block;
  font-size: 12px;
  color: #666;
  text-decoration: none;
  line-height: 1.6;
  padding: 4px;
  border-radius: 6px;
  transition: all 0.3s ease;
  position: relative;
  /* 最多显示两行，超出省略 */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  word-break: break-word;
}

.outline-link:hover {
  color: #1E6FFF;
  background: #F5F8FF;
}

.outline-link:hover::before {
  background: #1E6FFF;
  width: 6px;
  height: 6px;
}

.outline-link.active {
  color: #1E6FFF;
  background: #F5F8FF;
  font-weight: 500;
}

.outline-link.active::before {
  background: #1E6FFF;
  width: 6px;
  height: 6px;
}

/* 隐藏滚动条 */
.page-outline::-webkit-scrollbar {
  width: 4px;
}

.page-outline::-webkit-scrollbar-thumb {
  background: #ddd;
  border-radius: 2px;
}

.page-outline::-webkit-scrollbar-thumb:hover {
  background: #ccc;
}

/* 响应式：屏幕宽度小于1400px时隐藏大纲 */
@media screen and (max-width: 1400px) {
  .page-outline {
      display: none;
  }
}

/* ==================== 响应式设计 ==================== */
@media screen and (max-width: 1024px) {
  .nav-list {
      gap: 32px;
  }

  /* 二级导航适配 */
  .sub-nav-list {
      gap: 32px;
  }

  .sub-nav-title {
      margin-right: 40px;
      width: 160px;
  }

  .sub-nav-title h2 {
      font-size: 16px;
  }

  .sub-nav-item > a {
      font-size: 14px;
  }

  /* 页脚适配 */
  .footer-columns {
      gap: 40px;
  }

  .footer-content {
      gap: 40px;
  }
}

@media screen and (max-width: 1024px) {
  /* 主导航 */
  .nav-wrapper {
      height: 60px;
  }

  .nav-menu {
      display: none;
  }

  .nav-actions {
      display: none;
  }

  /* 显示汉堡菜单按钮 */
  .mobile-menu-btn {
      display: flex;
  }

  /* 移动端隐藏一级导航下拉菜单 */
  .main-nav-dropdown {
      display: none;
  }

  /* 二级导航 */
  .sub-nav {
      top: 60px;
      z-index: 1004; /* 移动端需要高于遮罩层,确保三级导航可见 */
  }

  .sub-nav-wrapper {
      height: 48px;
  }

  .sub-nav-title {
      margin-right: 20px;
      width: auto;
  }

  .sub-nav-title h2 {
      font-size: 15px;
  }

  .sub-nav-list {
      gap: 20px;
      overflow-x: auto;
      -webkit-overflow-scrolling: touch;
      scrollbar-width: none;
  }

  .sub-nav-list::-webkit-scrollbar {
      display: none;
  }

  .sub-nav-item > a {
      font-size: 13px;
      padding: 14px 0;
  }

  /* 移动端三级导航 - 覆盖PC端样式 */
  .third-nav-dropdown {
      /* 重置PC端样式 */
      position: fixed;
      top: auto;
      left: 0;
      right: 0;
      bottom: 0;
      min-width: auto;
      padding: 20px 0;
      border-radius: 16px 16px 0 0;
      max-height: 70vh;
      overflow-y: auto;
      box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
      z-index: 1003;
      /* 默认隐藏在底部 */
      transform: translateY(100%);
      opacity: 1;
      visibility: visible;
      transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  /* 显示状态 */
  .third-nav-dropdown.show {
      transform: translateY(0);
  }

  /* 移动端三级导航项样式 */
  .third-nav-item a {
      padding: 14px 20px;
      font-size: 15px;
      white-space: normal;
  }

  .third-nav-item a:hover {
      padding-left: 20px;
      background-color: #F7F8FA;
  }

  .third-nav-item a::before {
      display: none;
  }

  /* 三级导航遮罩层 */
  .third-nav-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100vh;
      background-color: rgba(0, 0, 0, 0.5);
      z-index: 1002;
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s ease;
      display: none;
  }

  .third-nav-overlay.active {
      opacity: 1;
      visibility: visible;
      display: block;
  }

  /* 主内容区域 */
  .main-content {
      margin-top: 108px; /* 60px (主导航) + 48px (二级导航) */
  }

  /* 页脚 */
  .footer-main {
      padding: 30px 0;
  }

  .footer-content {
      flex-direction: column;
      gap: 40px;
  }

  .footer-columns {
      flex-direction: column;
      gap: 8px;
  }

  .footer-column {
      width: 100%;
      min-width: auto;
  }

  /* 移动端隐藏咨询热线 */
  .footer-contact {
      display: none;
  }

  .footer-phone {
      justify-content: center;
  }

  .footer-qrcode {
      align-items: center;
  }

  .footer-links-section {
      padding: 20px 0;
  }

  .footer-links-group {
      flex-direction: column;
      margin-bottom: 16px;
  }

  .links-label {
      margin-bottom: 8px;
  }

  .links-list {
      gap: 8px 12px;
  }

  .copyright-content {
      flex-direction: column;
      gap: 8px;
      text-align: center;
  }

  .copyright-left,
  .copyright-center,
  .copyright-right {
      font-size: 11px;
  }

  .footer-links li {
      margin-bottom: 12px;
      display: inline-block;
      margin-right: 15px;
  }

  /* 移动端底部固定导航栏 */
  .mobile-bottom-nav {
      display: flex !important;
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      background: #fff;
      border-top: 1px solid #E5E5E5;
      box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
      z-index: 1000;
      padding: 8px 0;
      padding-bottom: calc(8px + env(safe-area-inset-bottom));
  }

  .mobile-bottom-nav .mobile-bottom-item {
      flex: 1;
      display: flex;
      text-decoration: none;
      color: #666;
      transition: all 0.3s ease;
      flex-direction: column;
      align-items: center;
  }

  .mobile-nav-item {
      flex: 1;
      display: flex;
      flex-direction: column;
      text-decoration: none;
      color: #666;
      transition: all 0.3s ease;
  }

  .mobile-nav-item:active {
      background-color: #F5F5F5;
  }

  .mobile-nav-icon {
      width: 24px;
      height: 24px;
      margin-bottom: 4px;
      stroke-width: 2;
  }

  .mobile-nav-label {
      font-size: 12px;
      font-weight: 500;
  }

  /* 给body添加底部padding，避免内容被导航栏遮挡 */
  body {
      padding-bottom: 60px;
  }

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

  .copyright-content {
      text-align: center;
  }
}