.case {
  padding: 60px 0;
}
.case .case-list {
  padding-top: 40px;
}
.case .case-list li {
  width: calc((100% - 2%) / 3);
  height: 292px;
  overflow: hidden;
  zoom: 1;
  transition: width 0.5s;
  cursor: pointer;
  margin-right: 1%;
  margin-bottom: 1%;
}
.case .case-list li:nth-child(3n) {
  margin-right: 0;
}
.case .case-list li h4 {
  position: relative;
  width: 100%;
  height: 292px;
  cursor: pointer;
  overflow: hidden;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  color: #fff;
  font-weight: normal;
}
.case .case-list li h4 .core-type {
  color: #fff;
  width: 100%;
  padding: 0 16px;
  height: 292px;
  font-weight: normal;
  background-image: -webkit-linear-gradient(bottom, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0) 100%);
  background-image: -o-linear-gradient(bottom, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0) 100%);
  background-image: linear-gradient(to top, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0) 100%);
}
.case .case-list li h4 .core-type dt {
  display: none;
}
.case .case-list li h4 .core-type dd {
  font-size: 16px;
  margin: auto 0 33px;
}
.case .case-list li .tabBody {
  overflow: hidden;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: 0.5s;
}
.case .case-list li .tabBody img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.case .case-list li .core-text {
  visibility: hidden;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 35px 38px;
  opacity: 0;
  transition: 0.5s;
  background-image: -webkit-linear-gradient(rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.5) 100%);
  background-image: -o-linear-gradient(rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.5) 100%);
  background-image: linear-gradient(rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.5) 100%);
}
.case .case-list li .core-text h3 {
  color: #fff;
  font-size: 20px;
  padding-bottom: 15px;
  line-height: 24px;
  background-image: -webkit-linear-gradient(left, #005BAC 0%, #005BAC 15%, rgba(232, 243, 255, 0.5) 15%, rgba(232, 243, 255, 0.5) 100%);
  background-image: -o-linear-gradient(left, #005BAC 0%, #005BAC 15%, rgba(232, 243, 255, 0.5) 15%, rgba(232, 243, 255, 0.5) 100%);
  background-image: linear-gradient(to right, #005BAC 0%, #005BAC 15%, rgba(232, 243, 255, 0.5) 15%, rgba(232, 243, 255, 0.5) 100%);
  background-size: 140px 2px;
  background-repeat: no-repeat;
  background-position: left bottom;
}
.case .case-list li .core-text .core-txt {
  line-height: 24px;
  padding-top: 10px;
  -webkit-line-clamp: 3;
  color: #fff;
  font-size: 12px;
  width: 310px;
}
.case .case-list li .core-text a {
  color: #fff;
  width: 112px;
  height: 42px;
  line-height: 42px;
  text-align: center;
  background: -webkit-linear-gradient(left, #0052D9 0%, #2E70DD 100%);
  background: -o-linear-gradient(left, #0052D9 0%, #2E70DD 100%);
  background: linear-gradient(to right, #0052D9 0%, #2E70DD 100%);
  box-shadow: 8px 8px 20px 0px rgba(55, 99, 171, 0.1);
  border-radius: 2px;
}
.case .case-list li .core-text a:hover {
  background: #0f85ff;
}
.case .case-list li.hover .tabBody {
  background-color: #fff;
  opacity: 1;
}
.case .case-list li.hover .core-text {
  opacity: 1;
  visibility: visible;
}
@media screen and (max-width: 1280px) {
  .case .index-tit {
    padding: 0 1em;
  }
}
@media screen and (max-width: 992px) {
  .case {
    padding: 3em 0;
  }
  .case .case-list li h4 .core-type dd {
    font-size: 1em;
  }
  .case .case-list li .core-text {
    padding: 2em;
  }
  .case .case-list li .core-text .core-txt {
    width: 100%;
  }
  .case .case-list li .core-text h3 {
    font-size: 1.3em;
  }
}