#content{
    width: 960px;
    margin: 0 auto
}
#content .tit{
    font-size: 3rem;
    color: #666;
    margin-top: 50px;
    color: #666;
    text-align: center
}
#content .nav{
    margin-top: 50px;
    font-size: 0;
}
#content .nav li{
    display: inline-block;
    font-size: 1.6rem;
    width: 33.33%;
    border: 1px solid #3672b0;
    text-align: center;
    box-sizing: border-box;
    height: 50px; line-height: 50px;
    cursor: pointer
}
#content .nav li:nth-child(2){
    border-left: 0 none;
    border-right: 0 none
}
#content .nav li.on{
    background: #3672b0;
    color: #fff
}
#content .section{
    margin-top: 30px;
    box-shadow: 0px 1px 3px 0px #D2D2D2;
    padding: 50px
}
#content .section .list li{
    margin-bottom: 20px
}
#content .section .list li:last-child{
    margin-bottom: 0
}
#content .section .list .step{
    float: left;
    color: #3672b0;
    font-weight: 700;
    vertical-align: top;
    width: 150px;
    margin-top: 2px;
    font-size: 2rem
}
#content .section .list .desc{
    float: right;
    font-size: 1.6rem;
    color: #666;
    width: 710px;
    line-height: 1.4
}
#content .section .list .desc .color{
    color: #3672b0
}
#content .section .list .desc .red{
    color: red
}
#content .section .list .desc .block{
    display: block;
    font-size: 1.4rem;
    margin-top: 5px
}