.banner{
    width: 100%;
    height: 300px;
}
.banner img{
    height: 300px;
    width: 100%;
}
.content{
    margin-top: -60px;
}
.about{
    width: 1170px;
    margin: 0 auto;
}
.about-left,.about-right{
    height: 100%;
    background: #F5F5F5;
}
.about-left{
    width: 270px;
    height: 100%;
    margin-right: 30px;
}
.about-right{
    width: 870px;
}
.address-list{
    margin: 30px;
    border-bottom: 4px solid #E7E7E7;
    padding-bottom: 20px;
}
.address-list:last-child{
    border-bottom: none;
}
.address-list h3{
    font-size: 24px;
    font-weight: 600;
    color: #111111;
    line-height: 40px;
}
.address-list .address-all,.post-net span{
    font-size: 16px;
    color: #111;
    line-height: 30px;
}
.post-net span:last-child{
    margin-left: 50px;
}