.case-container-tab{
  background: #f7f8fa;
  height: 69px;
  line-height: 69px;
  border-bottom: 1px solid #cccc;
}
.case-container-tab > div{
  width: 1200px;
  margin: 0 auto;
}
.case-container-tab > div li {
  float: left;
  width: 100%;
  box-sizing: border-box;
  text-align: center;
  color: #333;
  cursor: pointer;
  position: relative;
}
.case-container-tab > div li:hover{
  background: #00a0e9;
  color: #fff;
}
.case-container-tab > div li.active{
  color: #00a0e9;
  font-weight: bold;
  background: #fff;
}
.case-container-tab > div li.active > span{
  width: 115px;
  position: absolute;
  bottom: 0px;
  left: 50%;
  height: 4px;
  margin-left: -57px;
  /* height: 100%; */
  text-align: center;
  box-sizing: border-box;
  background: #00a0e9;
  border-radius: 2px;
}

.case-mian {
  width: 1200px;
  margin: 0 auto;
}

.case-main-item {
  float: left;
  margin: 30px 0;
  margin-right: 86px;
  cursor: pointer;
}

.case-main-item-image {
  width: 342px;
	height: 228px;
  border-radius: 8px;
  overflow: hidden;
}

.case-main-item-image img {
  max-width: 100%;
  max-height: 100%;
}

.case-main-item-title {
  font-size: 16px;
  font-weight: bold;
  text-align: center;
  color: #000;
  margin-top: 10px;
}

.case-mian > a:nth-child(3n+3) .case-main-item {
  margin-right: 0;
}

.clear-both {
  clear: both;
}