.app{
    width: 100%;
    height: 100%;
}
.header{
    position: relative;
    width: 100%;
    background: url(../img/baner2.png) no-repeat;
    background-size: 100% 100%;
    height: 567px;
    overflow: hidden;
}
.butt{
    position:absolute;
    bottom: 0;
    width: 100%;
    height: 59px;
    background: rgba(0, 0, 0, .3);
}
.header h2{
    text-align: center;
    font-size: 24px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #FFFFFF;
    margin-top: 264px;
}
.header h3{
    font-size: 31px;
    font-family: Source Han Sans CN;
    font-weight: 800;
    color: #FFFFFF;
    text-transform:uppercase;
    text-align: center;
    margin: 13px 0 20px;
}
.header .sign{
    width: 35px;
    height: 2px;
    background: #FFFFFF;
    margin: 0 auto;
}
.butt ul{
    width: 460px;
    margin: 0 auto;
}
.butt ul li{
    width: 230px;
    height: 59px;
    box-sizing: border-box;
    border-left: 1px solid #F1F1F1;
    border-right: 1px solid #F1F1F1;
    float: left;
    text-align: center;
    font-size: 16px;
    font-family: Source Han Sans CN;
    font-weight: 500;
    color: #FFFFFF;
    line-height: 54px;
    line-height: 59px;
    cursor: pointer;
}
.active{
    background: #1874CD;
}
.min{
    width: 100%;
    height: 60px;
    background: #F1F1F1;
}
.conten1{
    width: 100%;
    padding: 165px 0 0;
}
.conten1 h2{
    font-size: 24px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #1D1D1D;
    text-align: center;
}
.conten1 h3{
    text-transform:uppercase;
    font-size: 28px;
    font-family: Source Han Sans CN;
    font-weight: 800;
    color: #1874CD;
    text-align: center;
}
.conten1 div{
    width: 28px;
    height: 1px;
    background: #313131;
    margin: 0 auto;
    margin-top: 16px;
    margin-bottom: 62px;
}

.contact{
    width: 1200px;
    margin: 0 auto;
    padding: 40px 0 200px;
}
.img_box{
    position: relative;
}
.text_box{
    width: 710px;
    height: 353px;
    background: #FFFFFF;
    box-shadow: 0px 10px 50px 0px rgba(0, 0, 0, 0.1);
    position: absolute;
    right: -20px;
    top: 108px;
    padding-left: 78px;
    padding-top: 41px;
    box-sizing: border-box;
}
.ele_p1{
    font-size: 20px;
    font-family: Source Han Sans CN;
    font-weight: bold;
    color: #303030;
    line-height: 26px;
}
.ele_p2{
    width: 103px;
    height: 1px;
    background: #A0A0A0;
}
.ele_p3{
    font-size: 16px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #666666;
    line-height: 20px;
}
.contact2{
    width: 100%;
    margin-bottom: 85px;
}
.contact2 li{
    width: 100%;
    min-height: 74px;
    border-top: 1px solid #E6E6E6;
    border-bottom: 1px solid #E6E6E6;
}
.contact2 li p{
    width: 1031px;
    margin: 0 auto;
    line-height: 74px;
}
.contact2 li p span{
    padding: 0 6px;
}
.contact2 li p span:nth-child(1){
    font-size: 26px;
    font-family: Source Han Sans CN;
    font-weight: 500;
    color: #1874CD;
}
.contact2 li p span:nth-child(3){
    font-size: 16px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #666666;
    line-height: 10px;
}

.contact3{
    width: 100%;
    background: #F1F1F1;
    padding-top: 127px;
}
.contact3 h3{
    font-size: 26px;
font-family: Source Han Sans CN;
font-weight: 400;
color: #333333;
line-height: 45px;
text-align: center;
}
.contact3 .sing{
    width: 56px;
height: 1px;
background: #BFBFBF;
margin: 0 auto;
}
.contact3 form{
    display: block;
    width: 921px;
    margin: 0 auto;
}
.contact3 form p{
    width: 100%;
    font-size: 14px;
font-family: Source Han Sans CN;
font-weight: 500;
color: #333333;
margin-top: 33px;
margin-bottom: 9px;
}
.contact3 form input{
    width: 100%;
    display: block;
    height: 46px;
    line-height: 46px;
    background: rgba(5, 5, 5, 0.1);
    border: none;
    font-size: 18px;
    padding-left: 10px;
    box-sizing: border-box;
}
.contact3 form textarea{
    width: 100%;
    display: block;
    height: 125px;
    line-height: 46px;
    background: rgba(5, 5, 5, 0.1);
    font-size: 18px;
    padding-left: 10px;
    border: none;
    box-sizing: border-box;
}
button{
    width: 191px;
    height: 47px;
    background: #1874CD;
    font-size: 15px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #FFFFFF;
    line-height: 47px;
    border: none;
    float: right;
    margin: 49px 0 169px;
}