/* 导航菜单二级菜单样式 */
.dropdown-menu {
  position: relative;
}

/* 确保在高DPI屏幕上文字清晰 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .submenu {
    -webkit-font-smoothing: subpixel-antialiased;
    -moz-osx-font-smoothing: auto;
  }
}

/* 二级菜单容器 */
.submenu {
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  min-width: 240px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translate3d(0, -10px, 0);
  transition: all 0.3s ease;
  padding: 8px 0;
  /* 防止文字模糊 */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
  will-change: opacity, transform, visibility;
}

/* 鼠标悬停时显示二级菜单 */
.dropdown-menu:hover .submenu {
  opacity: 1;
  visibility: visible;
  transform: translate3d(0, 0, 0);
}

/* 二级菜单项 */
.submenu-item {
  position: relative;
}

.submenu-item a {
  display: block;
  padding: 16px;
  color: rgba(0, 0, 0, 0.85);
  text-decoration: none;
  font-size: 16px;
  line-height: 1.5;
  transition: all 0.2s ease;
  border-bottom: 1px solid #f5f5f5;
  /* 防止文字模糊 */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

.submenu-item:last-child a {
  border-bottom: none;
}

/* 二级菜单项悬停效果 */
.submenu-item a:hover {
  background-color: #f0f8ff;
  color: #1890ff;
  padding-left: 20px;
}

/* 二级菜单项图标 */
.submenu-item a::before {
  content: "▶";
  margin-right: 8px;
  font-size: 12px;
  color: #999;
  transition: all 0.2s ease;
}

.submenu-item a:hover::before {
  color: #1890ff;
  transform: translateX(2px);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .submenu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: #f8f9fa;
    margin-top: 8px;
    border-radius: 0;
  }

  .dropdown-menu:hover .submenu {
    transform: none;
  }

  .submenu-item a {
    padding: 12px 16px;
    font-size: 16px;
  }

  .submenu-item a:hover {
    padding-left: 16px;
  }
}

/* 确保导航菜单项在悬停时有适当的背景色 */
.dropdown-menu:hover .navItem___jaD2H {
  background-color: rgba(24, 144, 255, 0.1);
  border-radius: 4px;
}

/* 导航菜单项悬停时的文字颜色 */
.dropdown-menu:hover .navName___2psCw {
  color: #1890ff;
}

/* 为有二级菜单的项目添加箭头指示 */
.dropdown-menu .navName___2psCw::after {
  content: "▼";
  margin-left: 4px;
  font-size: 14px;
  color: #ffffff;
  transition: all 0.2s ease;
}

.dropdown-menu:hover .navName___2psCw::after {
  color: #1890ff;
  transform: rotate(180deg);
}

/* 确保二级菜单不会影响其他元素 */
.navList___7CpYK {
  position: relative;
  z-index: 100;
}

/* 二级菜单的动画效果优化 */
.submenu {
  will-change: opacity, transform, visibility;
}

/* 防止二级菜单闪烁 */
.dropdown-menu {
  overflow: visible;
}

/* 二级菜单项的分隔线 */
.submenu-item:not(:last-child)::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 1px;
  background: #f0f0f0;
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
  .submenu {
    border: 2px solid #000;
    background: #fff;
  }

  .submenu-item a {
    color: #000;
  }

  .submenu-item a:hover {
    background-color: #000;
    color: #fff;
  }
}

/* 减少动画模式支持 */
@media (prefers-reduced-motion: reduce) {
  .submenu,
  .submenu-item a,
  .navName___2psCw::after {
    transition: none;
  }
}