.content{
    background-color: #f2f5f6;
    overflow: hidden;
    padding-bottom: 100px;

}
.content h4{
    height: 32px;
font-family: SourceHanSansCN-Medium;
font-size: 32px;
color: #071C2F;
text-align: center;
font-weight: 500;
margin-top: 60px;
margin-bottom: 40px;
}
.content p{
   text-align: center;
   margin: 20px;
}
.content .flex{
   flex-wrap: wrap;
}
.content .flex-item{
    width: 280px;
height: 112px;
background: #FFFFFF;
box-shadow: 2px 2px 14px 0px rgba(188,210,240,1);
margin-right: 20px;
margin-bottom: 20px;
display: flex;
align-items: center;
}
.content .flex-item:nth-child(4n){
margin-right: 0;
}
.content .flex-item img{
    display: block;
    margin: 0 auto;
    max-width: 280px;
    max-height: 112px;
}