.sjzxjs{
  overflow: hidden;
}
.sjzxjs .lt{
  float: left;
  width: 542px;
  height: 253px;
}.sjzxjs .lt img{
  display: block;
  width: 100%;
  height: 100%;
}
.sjzxjs .rt{
  float: right;
  width: 655px;
  padding: 20px 45px;
  box-sizing: border-box;
  font-size: 18px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #333333;
  line-height: 36px;;
}.w1200 {
  width: 100%;
  margin: 0 auto;
  max-width: 1200px;
}
.sjzxjs{
  background: #F7F7F7;
}

.platform{
  background: #F2F2F2;
}
.platform .w1200{
  background: #fff;
  padding: 89px 49px 56px 54px;
  box-sizing: border-box;

font-size: 18px;
font-family: Microsoft YaHei;
font-weight: 400;
color: #333333;
line-height: 36px;
position: relative;
}
.platform .w1200 img{
  position: absolute;
  top: -59px;
  left: 49px;
  width: 139px;
}


.cloud{
  background: #F7F7F7;
}
.cloud ul {
  overflow: hidden;
}
.cloud ul li{
  float: left;
  margin-right: 3px;
  width: 298px;
  height: 450px;
  padding-top: 130px;
  box-sizing: border-box;
  text-align: center;
  background: url(../image/bg01.png) no-repeat;
  background-size: 100% 100%;
}
.cloud ul li:last-child{
  margin-right: 0;
}
.cloud ul li .title{
  margin-top: 39px;
  font-size: 28px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #333333;
  line-height: 36px;
}.cloud ul li img{
  display: block;
  width: 76px;
  height: 74px;
  margin: 0 auto;
}
.cloud ul li .desc{
  display: none;
}
.cloud ul li .title img{
  display: none;
}
.cloud ul li.active{
  text-align: left;
  box-sizing: border-box;
  padding:77px 60px;
  width: 598px;
  background: url(../image/bg02.png) no-repeat;
  background-size: 100% 100%;
}.cloud ul li.active p:nth-child(1){
  display: none;
}.cloud ul li.active  .title img{
  display: inline-block;
  height: 41px;
  width: auto;
  vertical-align: middle;
  margin-right: 20px;
}.cloud ul li.active  .title{
margin-top: 0;
font-size: 28px;
font-family: Microsoft YaHei;
font-weight: 400;
color: #1678FB;
line-height: 36px;
}
.cloud ul li.active .title:after{
 content: '';
  width: 22px;
  display: block;
height: 2px;
background: #1678FB;
border-radius: 1px;
margin-top: 30px;
}
.cloud ul li.active .desc{
  display: block;

font-size: 18px;
font-family: Microsoft YaHei;
font-weight: 400;
color: #333333;
line-height: 36px;
margin-top: 24px;
}

.case{
  background: #F2F2F2;
}
.case li{
  float: left;
  width: 394px;
  height: 334px;
  margin-right: 8px;
  
}.case li img{
  display: block;
  width: 100%;
  height: 334px;
}.case li:nth-child(3),.case li:nth-child(6){
  margin-right: 0;
}.case li:nth-child(1),.case li:nth-child(2),.case li:nth-child(3){
  margin-bottom: 8px;
}.case .item{
  overflow: hidden;
}