.nav-bg {
  width: 100%;
  background: #fff;
}

.support-nav {
  width: 900px;
  margin: 0 auto;
  font-size: 18px;
}

.support-nav li a {
  display: block;
  color: #333;
  height: 54px;
  line-height: 54px;
  cursor: pointer;
  padding: 0 20px;
}

.support-nav-active {
  border-bottom: 3px solid #387df4;
}
.success-case {
  height: 800px;
  background: #f0f8fe;
}
.case-list {
  height: 200px;
  background: #fff;
  margin-top: 30px;
}

.case-list li {
  width: 33%;
}

.case-list li img {
  margin-right: 20px;
}

.case-list li .desc .tit {
  font-size: 32px;
  color: #333;
}

.case-list li .desc span {
  color: #666;
}

.case-list2 {
  width: 100%;
  height: 272px;
  margin-top: 30px;
}
.case-list2 li {
  width: 20%;
  text-align: center;
  border-right: 1px solid #eee;
  padding: 0 16px;
  background: #fff;
  transition: 0.3s;
}

.case-list2 li img {
  margin-top: 40px;
  transition: 0.3s;
}

.case-list2 .list-desc-wrap {
  margin-top: 30px;
}

.case-list2 .list-desc-wrap .top {
  transition: 0.3s;
}
.case-list2 .list-desc-wrap .top .tit {
  font-size: 18px;
}
.case-list2 .list-desc-wrap .top .desc {
  margin-top: 10px;
  color: #666;
  transition: 0.3s;
}
.case-list2 .list-desc-wrap .bottom {
  transition: 0.3s;
  font-size: 12px;
  display: none;
}
.case-list2 .list-desc-wrap .bottom .desc {
  color: #666;
  transition: 0.3s;
  margin-bottom: 10px;
}

.case-list2 .list-desc-wrap .bottom .company {
  color: #666;
  text-align: left;
}
.case-list2 .list-desc-wrap .bottom .company span {
  color: #333;
  margin-left: 10px;
  transition: 0.3s;
}
.case-list2 li:hover {
  transform: scale(1.1);
  box-shadow: 0 0 10px #ddd;
  border-top: 2px solid #387df4;
}
.case-list2 li:hover .top {
  display: none;
}
.case-list2 li:hover .bottom {
  display: block;
}
.case-list2 li:hover .list-desc-wrap {
  margin-top: 10px;
}
/* .case-list2 li:hover img {
  margin-top: 20px;
}
.case-list2 li:hover .bottom .desc {
  margin-bottom: 10px;
} */
@media only screen and (max-width: 1440px) {
  .success-case {
    height: 630px;
  }
  .case-list2 {
    height: 204px;
  }
  .case-list li img {
    transform: scale(0.9);
  }
  .case-list li .desc .tit {
    font-size: 26px;
  }
  .case-list2 .list-desc-wrap .top .tit {
    font-size: 16px;
  }
  .case-list2 .list-desc-wrap .top .desc {
    font-size: 14px;
  }
  .case-list2 li img {
    margin-top: 20px;
    width: 68px;
    height: 68px;
  }
  .case-list2 .list-desc-wrap {
    margin-top: 10px;
  }
  .case-list2 li:hover img {
    margin-top: 20px;
  }
  .case-list2 .list-desc-wrap .bottom .desc {
    font-size: 12px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    margin-bottom: 10px;
  }
}
@media only screen and (max-width: 1280px) {
  .success-case {
    height: 630px;
  }
  .case-list li img {
    transform: scale(0.8);
  }
  .case-list li .desc .tit {
    font-size: 22px;
  }
  .case-list li .desc span {
    font-size: 14px;
  }
}
@media only screen and (max-width: 1024px) {
  .case-list {
    height: 160px;
  }
  .success-case {
    height: 570px;
  }
  .case-list li img {
    transform: scale(0.6);
    margin-right: 0;
  }
  .case-list li .desc .tit {
    font-size: 18px;
  }
  .case-list li .desc span {
    font-size: 12px;
  }
  .case-list2 {
    height: 200px;
  }
  .case-list2 li {
    padding: 0 10px;
    height: 220px;
  }
  .case-list2 li img {
    transform: scale(0.6);
  }
  .case-list2 .list-desc-wrap {
    margin-top: 0;
  }

  .case-list2 .list-desc-wrap .top .desc {
    font-size: 12px;
  }

  .case-list2 .list-desc-wrap .bottom .desc {
    font-size: 12px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }
}