.empty-item{
  position: relative;
}
.site-category{
  position: absolute;
  top: 88px;
  left: -92px;
  z-index: 20;
  width: 234px;
  height: 460px;
  font-size: 14px;
}
.category-list{
  height: 420px;
  border: 0;
  color: #fff;
  background: rgba(105, 101, 101, .6);
  padding: 20px 0;
}
.category-item a{
  display: block;
  height: 42px;
  color: #fff;
  padding-left: 30px;
  line-height: 42px;
  background-color: rgba(0, 0, 0, 0);
  transition: background-color .2s;
}
.category-item a i{
  float: right;
  margin-right: 20px;
  font-size: 12px;
}
.category-item:hover{
  background-color: #ff6700;
}

.category-col{
  position: absolute;
  left: 234px;
  top: 0;
  z-index: 20;
  height: 458px;
  border: 1px solid #e0e0e0;
  border-left: 0;
  background-color: #fff;
  box-shadow: 0 8px 16px rgb(0 0 0 / 18%);
  display: flex;
}
.col-list{
  width: 248px;
  height: 76px;
}
.col-list a{
  display: block;
  padding: 18px 20px;
  line-height: 40px;
  color: #333;
  transition: color .2s;
}
.col-list a img{
  float: left;
  margin-right: 12px;
  vertical-align: middle;
  border: 0;
}
.col-list a span{
  display: block;
  float: left;
  width: 156px;
  line-height: 40px;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.category-col{
  display: none;
}
.category-item:hover .category-col{
  display: flex;
}