body{
}
@media(min-width:760px){
.brief{
    margin-top:70px;
}
.brief>p{
    font-size:20px;
    color: #5e5e5e;
    width:1020px;
    margin: 0 auto;
    line-height:35px;
    text-indent:40px;
    margin-bottom:20px;
}
.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>h3{
    font-size: 35px;
    color: #5e5e5e;
    font-weight: normal;
    text-align: center;
    margin-bottom: 45px;
}
.Development{
    height:1000px;
    width:950px;
    margin:0 auto;
    background: url(../images/time.png)center no-repeat;
    overflow: hidden;
}
.Development>ul
{
    float: left;
    width:300px;
    margin-top:200px;
}

.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:140px;
}
.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;
}
.about_img{
    margin-top:65px;
    width:100%;
    height: auto;
}
}

@media(max-width:760px){
.brief {
    width: 95%;
    padding-top: 5em;
    margin: 0 auto;
}
.brief>p{
    font-size: 1.3em;
    color: #5e5e5e;
    margin: 0 auto;
    line-height: 1.7em;
    text-indent:40px;
    margin-bottom:20px;
}
.vision{
    width: 95%;
    margin: 0 auto;
	height: 20%;
}
.vision>ul{
    margin: 0 auto;
    margin-top: 40px;
}

.vision>ul>li{
    float: left;
    width: 30%;
    height: auto;
    background: url(../images/bei1.png) center no-repeat;
    background-size: contain;
    padding-bottom: 0.5em;
}

.vision>ul>li>h4{
    line-height: 2em;
    text-align: center;
    font-size: 2em;
    color: #5e5e5e;
    font-weight: normal;
}

.vision>ul>li>p.vsi_p1{
    font-size: 17px;
    text-align: center;
    color: #5e5e5e;
    width: 100%;
}

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

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

.vision>ul>li>p.vsi_p4{
    font-size: 17px;
    text-align: center;
    color: #5e5e5e;
    margin-top: 0.3em;
}


.vision>ul>li:nth-child(2){
    margin: 0 3%;
}
.Time{
    width:95%;
	margin:0 auto;
}
.Time>h3{
    font-size: 3em;
    color: #5e5e5e;
    font-weight: normal;
    text-align: center;
    margin-bottom: 45px;
}
.Development {
    padding-top: 5em;
    margin: 0 auto;
    background: url(../images/time.png)center no-repeat;
    overflow: hidden;
    background-size: 33%;
}
.Development>ul {
    float: left;
    width: 33%;
    margin-top: -3em;
}
.Development>.ul2 {
    float: right;
    margin-top: -3.5em;
}
.Development>.ul1>li {
    margin-bottom: 0.7em;
    color: #717171;
    text-align: right;
}
.Development>.ul2>li {
    margin-bottom: 0.9em;
    color: #717171;
    text-align: left;
}
.map{
    width:95%;
    margin: 0 auto;
}
.map>p>img{
    display: block;
    margin: 0 auto;
	width:100%;
}
.Addr {
    width: 95%;
    height: 260px;
    margin: 0 auto;
    margin-top: 5em;
}
.Addr>div {
    margin: 0 auto;
    width: 30%;
    height: 350px;
    float: left;
    padding-left: 3%;
}
.Addr>div>ul {
    margin: 0 auto;
    height: 50%;
}
.Addr>div>ul>li:first-child {
    font-size: 2em;
    color: black;
    margin-bottom: 0.3em;
}
.about_img{
    margin-top:3.7em;
    width:100%;
    height: auto;
}

}
.nav{
    margin-right:80px;
}

.about_img>img{
 width:100%;
}

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

.brief>p>strong{
    font-weight:bold;
}

.Time{
    margin-top:95px;
}

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

.Addr{
    margin-bottom:125px;
}