body{
}

.nav{
    margin-right:80px;
}
.about_img{
    margin-top:65px;
    width:100%;
    height: auto;
}

.about_img>img{
 width:100%;
}


.brief{
    margin-top:70px;
}

.brief>h3{
    font-size:35px;
    color: #5e5e5e;
    font-weight:normal;
    text-align: center;
    margin-bottom:45px;
}
.brief>p{
    font-size:20px;
    color: #5e5e5e;
    width:1020px;
    margin: 0 auto;
    line-height:35px;
    text-indent:40px;
    margin-bottom:20px;
}
.brief>p>strong{
    font-weight:bold;
}

.vision>ul{
    width:910px;
    height:380px;
    margin: 0 auto;
    margin-top:40px;
}


.vision>ul>li{
    float: left;
    width:275px;
    height:380px;
    background: url("../images/bei1.png") center no-repeat;

}


.vision>ul>li>h4{
    height:100px;
    line-height:100px;
    text-align: center;
    font-size:35px;
    color: #5e5e5e;
    font-weight:normal;
}

.vision>ul>li>p.vsi_p1{
    font-size:18px;
    text-align: center;
    color: #5e5e5e;
    margin-top:100px;
}

.vision>ul>li>p.vsi_p2{
    font-size:30px;
    text-align: center;
    color: #19608a;
    margin-top:5px;
}

.vision>ul>li>p.vsi_p3{
    font-size:18px;
    text-align: center;
    color: #5e5e5e;
    margin-top:10px;
}

.vision>ul>li>p.vsi_p4{
    font-size:18px;
    text-align: center;
    color: #5e5e5e;
    margin-top:5px;
}


.vision>ul>li:nth-child(2){
    margin: 0 35px;
}

.Time{
    margin-top:95px;
}

.Time>h3{
    font-size: 35px;
    color: #5e5e5e;
    font-weight: normal;
    text-align: center;
    margin-bottom: 45px;
}

.Development{
    height:800px;
    width:950px;
    margin:0 auto;
    background: url("../images/time.png")center no-repeat;
    overflow: hidden;
}
.Development>ul
{
    float: left;
    width:300px;
    margin-top:120px;
}


.Development>.ul1>li{
    margin-bottom:70px;
    font-size:16px;
    color: #717171;
    text-align: right;
    min-height:50px;
}


.Development>.ul1>li:nth-child(4),.Development>.ul1>li:nth-child(5),.Development>.ul1>li:nth-child(6){
    line-height:50px;
}


.Development>.ul2{
    float: right;
    margin-top:190px;
}
.Development>.ul2>li{
    margin-bottom:70px;
    font-size:16px;
    color: #717171;
    text-align: left;
    min-height:50px;
}

.map{
    width:100%;
    height: auto;
}

.map>img{
    display: block;
    margin: 0 auto;
}

.Addr{
    width: 975px;
    height:300px;
    margin: 0 auto;
    margin-top:85px;
}
.Addr>div{
    width:33.333%;
    height:280px;
    float: left;
}



.Addr>div>ul{
    width:220px;
    margin: 0 auto;
    height:115px;

}

.Addr>div>ul>li:first-child{
    font-size:24px;
    color: black;
    margin-bottom:15px;
}

.Addr>div>ul>li{
    font-size:16px;
    line-height:30px;
}

.Addr>div>ul:last-child{
    margin-top:50px;
}

.Addr>div:nth-child(2){
    border-left: 2px dashed #6a88a0;
    border-right: 2px dashed #6a88a0;
    box-sizing: border-box;
}

.Addr{
    margin-bottom:125px;
}