.right-content .parnter-content {
  padding-top: 45px;
  padding-bottom: 215px;
}
.right-content .parnter-content ul li {
  width: calc(20% + 1px);
  float: left;
  border: 1px solid #eee;
  margin-left: -1px;
  margin-top: -1px;
  box-sizing: border-box;
}
.right-content .parnter-content ul li .img-box {
  width: 100%;
  position: relative;
  padding-bottom: 54%;
  border: 1px solid transparent;
  transition: all 0.3s;
}
.right-content .parnter-content ul li .img-box img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  z-index: -1;
  object-fit: cover;
}
.right-content .parnter-content ul li .img-box:hover {
  border: 1px solid #f00;
}
@media (max-width: 1440px) {
  .right-content .parnter-content {
    padding-bottom: 145px;
  }
}
@media (max-width: 768px) {
  .right-content .parnter-content {
    padding-bottom: 90px;
  }
  .right-content .parnter-content ul li {
    width: calc(33.333% + 1px);
  }
}