.case_content_box ul {
  width: 1440px;
  margin: auto;
  height: 376px;
  
  display: flex;
  -moz-display: flex;   
  -webkit-display: flex;  
  -o-display: flex;       
  -ms-display: flex;  
  justify-content: space-between;
}
.case_content_box li{
  width:351px;
  height:376px;
  
  border-radius:10px;
  position: relative;
}
.case_content_box li p{
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: auto;
  height: 52px;
  line-height: 52px;
  font-size:16px;
  padding-left: 5px;
}
.case_content_box li p span{
  float: right;font-size:14px;
  color:rgba(0,156,255,1);
  margin-right: 15px;
  cursor: pointer;
}
.case_content_box li:first-child{
  background-image: url('../image/1.png') 

}
.case_content_box li:nth-child(2){
  background-image: url('../image/2.png');
}
.case_content_box li:nth-child(3){
  background-image: url('../image/3.png') 
}
.case_content_box li:nth-child(4){
  background-image: url('../image/4.png') 
}
.case_content_bottom{

  background: url('../image/but01.png') no-repeat center;
  width:151px;
  height: 40px;
  margin: 60px auto;
  cursor: pointer;
}
.case_content_bottom:hover{
  background: url('../image/but01-hover.png') no-repeat center;
}
.advantages_content .NavTop{
  margin-bottom: 20px;
}
.advantages_content_box ul{
  
  width: 1200px;
  margin: auto;
  
  display: flex;
  -moz-display: flex;   
  -webkit-display: flex;  
  -o-display: flex;       
  -ms-display: flex;  
  justify-content: space-between;
}
.advantages_content_box li {
  width: 250px;
  height: 300px;
  
  text-align: center;
  color:rgba(34,34,34,1);
  font-size:14px;
}
.advantages_content_box li .p1{
  margin-top: 40px;
  font-size:24px;
  margin-bottom: 10px;
}