.classify{
  max-width: 1400px;
  margin: auto;
  padding-top: 20px;
  min-height: 100px;
}
.classify .left{
  width: 100%;

}
.classify .left .item-all{
  min-height: 800px;
}
.classify .left .p{
  border-bottom: solid #254267 3px;
  display: flex;
  justify-content: flex-end;
}
.classify .left .p span{
  display: block;
  padding: 0 15px 0 15px;
  height: 35px;
  background-color: #254267;
  font-weight: 700;
  color: #ffffff;
  font-size: 20px;
  position: relative;
  line-height: 35px;
}
.classify .left .p span::before{
  content: "";
  display: block;
  position: absolute;
  top: 0;
  left: -50px;
  width: 0;
  height: 0;
  border-bottom: 35px solid #254267;
  border-left: 50px solid transparent;
  -webkit-transition: all 0.25s cubic-bezier(0.25, 0.8, 0.25, 1);
  transition: all 0.25s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.classify .left .item-all .item{
  display: flex;
  padding:20px 0 20px 0;
  border-top: 1px solid #ebebeb;
}
.classify .left .item-all .item .img{
  width: 30%;
}
.classify .left .item-all .item .img img{
  width: 100%;
}
.classify .left .item-all .item .intro{
  width: 70%;
  margin-left: 20px;
  line-height: 30px;
  color: #333;
}
.classify .left .item-all .item .intro p{
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3; /* 限制在一行内 */
  overflow: hidden;
  font-size: 14px;
}




@media screen and (max-width:1200px){
  .classify{
    padding: 20px 20px 0 20px;
    flex-wrap: wrap;
  }
  .classify .left{
    width: 100%;
  }
}

@media screen and (max-width:768px) {
  .classify .left .item-all .item{
    flex-wrap: wrap;
  }
  .classify .left .item-all .item .img{
    width: 100%;
  }
  .classify .left .item-all .item .intro{
    width: 100%;
    margin: 0;
  }

}

@media screen and (max-width:340px) {
  .classify .left .item-all .item .intro{
    line-height: 24px;
  }
  .classify .left .item-all .item .intro p{
    font-size: 12px;
  }
}