navigation.css

* {
  margin: 0;
  padding: 0;
}

body {
  display: flex;
  justify-content: center;
}

a {
  text-decoration: none;
}

.container {
  width: 1040px;
  padding-left: 20px;
  padding-right: 20px
}

.navigation-title {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 80px;
}

.navigation-wrapper {
  position: relative;
  display: flex;
  flex: 1;
  width: 100%;
}

.hover-bg:hover {
  text-decoration: none;
  background-color: #EFEFEF;
}

.left-navi {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100px;
  overflow-y: auto;
}

.left-navi-item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 35px;
  margin-bottom: 10px;
  font-size: 16px;
  font-weight: 600;
  color: #262626;
  border-bottom: 1px solid #DDD;
  cursor: pointer;
}

.left-navi-item.active {
  background-color: #EFEFEF;
  border-bottom: 2px solid yellowgreen;
}

.right-content {
  display: flex;
  flex: 1;
  width: calc(100% - 120px);
  flex-direction: column;
  margin-left: 20px;
  overflow-y: auto;
}

.right-content-item {
  display: flex;
  flex-direction: column;
  width: calc(100% - 2px);
  margin-bottom: 40px;
  border: 1px solid transparent;
  border-top: 1px solid #DDD;
  border-radius: 3px;
}

.right-content-item.active {
  border: 1px solid yellowgreen;
}

.subNavi-wrapper {
  display: flex;
  align-items: center;
  width: 100%;
  height: 40px;
  border-bottom: 1px solid #DDD;
  background-color: #DDD;
}

.subNavi-item {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 0 20px;
  border-right: 1px solid #fff;
  cursor: pointer;
}

.subNavi-item.active {
  background-color: yellowgreen;
}

.links-wrapper {
  flex: 1;
  width: 100%;
}

.links-content-wrapper {
  display: none;
  flex-wrap: wrap;
  align-content: flex-start;
  justify-content: flex-start;
  width: calc(100% - 10px);
  height: calc(100% - 10px);
  padding: 5px;
}

.links-content-wrapper.show {
  display: flex;
}

.link-item {
  display: flex;
  align-items: center;
  width: calc(20% - 30px);
  height: 40px;
  margin: 5px;
  padding: 5px 10px;
  border-radius: 3px;
  background-color: #f9f9f9;
  cursor: pointer;
}

.link-item.hide {
  /* 仍占据空间 */
  visibility: hidden;
}

.link-item-icon {
  width: 17px;
  height: 17px;
  border-radius: 5px;
  margin-right: 5px;
}

.link-item-title {
  color: #666;
  font-size: 13px;
}

.navigation-tools {
  position: fixed;
  right: 50px;
  bottom: 50px;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 50px;
  height: 100px;
}

.tool-item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 50px;
  font-size: 15px;
  font-weight: 600;
  color: #262626;
  margin: 5px 0;
  border-radius: 5px;
  border: 1px solid #DDD;
  cursor: pointer;
  background-color: #fff;
}