.item-box {
  position: relative;
  padding-bottom: 140%;
  height: 0;
  overflow: hidden;
  /*动画设置*/
}
@media (max-width: 767px) {
  .item-box {
    padding-bottom: 0;
    height: auto;
  }
}
.item-box img {
  max-width: 100%;
  /*添加效果*/
  -webkit-transform: scale(1);
  -moz-transform: scale(1);
  -ms-transform: scale(1);
  -o-transform: scale(1);
  transform: scale(1);
}
@media (max-width: 767px) {
  .item-box img {
    display: none;
  }
}
.item-box .cover-text {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  line-height: 34px;
  text-transform: uppercase;
  background: #0A60B7;
  color: #fff;
  /*添加效果*/
  opacity: 0;
}
@media (max-width: 767px) {
  .item-box .cover-text {
    position: static;
    color: #0A2356;
    opacity: 1;
    padding: 20px 0;
    background: #fff;
  }
}
.item-box .cover-text .cn:after {
  content: "";
  display: block;
  margin-top: 10px;
  width: 40%;
  border-bottom: 1px solid #fff;
}
.item-box .cover-text > .box {
  padding-right: 10%;
  width: 70%;
}
@media (max-width: 767px) {
  .item-box .cover-text > .box {
    padding: 0 10px;
    width: 100%;
  }
}
.item-box img,
.item-box .cover-text {
  -webkit-transition: all .6s;
  -moz-transition: all .6s;
  -ms-transition: all .6s;
  -o-transition: all .6s;
  transition: all .6s;
}
.item-box:hover img {
  -webkit-transform: scale(4);
  -moz-transform: scale(4);
  -ms-transform: scale(4);
  -o-transform: scale(4);
  transform: scale(4);
}
.item-box:hover .cover-text {
  opacity: 1;
}
.culture {
  margin-bottom: 80px;
  margin-top: 20px;
}
.culture li {
  float: left;
  width: 20%;
}
@media (max-width: 767px) {
  .culture li {
    float: none;
    width: 100%;
  }
}