html, body, div, span{
  font-family: PingFang, PingFang-Bold;
}
.el-header{
  padding: 0;
}
.flex{
  display: flex;
}
.flex-row-center{
  justify-content: center;
}
.flex-col-center{
  align-items: center;
}
.flex-center{
  justify-content: center;
  align-items: center;
}
.flex-dir-col{
  flex-direction: column;
}
.flex-row-sb{
  justify-content: space-between;
}
.flex-col-sa{
  justify-content: space-around;
}
.flex-wrap{
  flex-wrap: wrap;
}
/* 文本超出省略 */
.ell{text-overflow:ellipsis;overflow:hidden;white-space:nowrap;}
.two-ell{
  text-overflow: -o-ellipsis-lastline;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.three-ell{
  text-overflow: -o-ellipsis-lastline;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}