/* 禁用导航栏"关于"的点击功能 */
.nav-menu .menu-item:nth-child(5) a {
  pointer-events: none;
  cursor: default;
  color: inherit !important;
  text-decoration: none !important;
}

/* 如果导航栏只有4个菜单项，则使用类选择器 */
.nav-menu .menu-item a[href="#"] {
  pointer-events: none;
  cursor: default;
  color: inherit !important;
  text-decoration: none !important;
}