header{
    width: 100%;
    height: 800px;
}
.headerbox{
    margin: 0 auto;
    width: 1920px;
    height: 800px;
    background: url('../images/index_top.jpg');
}
header .top{
    width: 1920px;
    height: 76px;
    margin: 0 auto;
    display: flex;
}
.top img{
    margin-left: 360px;
    width: 77px;
    height: 76px;
}
.top ul{
    width: 620px;
    height: 76px;
    display: flex;
    margin-left: 530px;
    margin-top: 0;
}
.top ul li{
    height: 76px;
    list-style: none;
    width: 120px;
    text-align: center;
} 
.top ul li a img{
    width: 12px;
    height: 7px;
    margin-left: 5px;
}
.top ul li a{
    text-decoration: none;
    color: #fff;
    line-height: 76px;
    font-size: 12px;
}
.top li:hover a{
    color: #189afc;
}
.center{
    width: 1200px;
    height: 700px;
    margin-left: 360px;
    margin-top: 20px;
}
.center img{
    width: 1200px;
    height: 700px;
}
main{
    width: 1920px;
    height: auto;
    margin: 0 auto;
}
.mainbox{
    width: 1200px;
    height: auto;
    margin: 0 auto;
}
.mainbox .about_us{
    width: 1200px;
    height: 750px;
    display: flex;
    margin-top: 140px;
}
.left,.right{
    width: 590px;
    height: 750px;
}
.left{
    margin-right: 20px;
}
h1{
    font-size: 50px;
    margin-top: 0;
    color: #273266;
}
h1 span{
    color: #189afc;
}
.main_text{
    margin-top: 70px;
}
.main_text p{
    color: #273266;
    font-size: 21px;
    line-height: 10px;
}
button{
    width: 126px;
    height: 48px;
    background: #189afc;
    color: #fff;
    line-height: 48px;
    text-align: center;
    outline: none;
    border: none;
    border-radius: 5px;
    font-size: 14px;
    margin-top: 33px;
}
.right img{
    margin-top: 114px;
}
footer{
    width:100%;
    height: 148px;
}
.footerbox{
    width: 1920px;
    height: 150px;
    background: #131933;
    color: #fff;
    margin: 0 auto;
}
.footerbox .footon{
    width: 1200px;
    height: 95px;
    margin: 0 auto;
    border-bottom: 1px solid #3a3f55;
    display: flex;
}
.footon img{
    width: 59px;
    height: 53px;
    margin-top: 23px;
}
.footon ul{
    width: 620px;
    height: 95px;
    display: flex;
    margin-left: 530px;
    margin-top: 0;
}
.footon ul li{
    height: 95px;
    list-style: none;
    width: 120px;
    text-align: center;
} 
.footon ul li a img{
    width: 14px;
    height: 7px;
    margin-left: 5px;
}
.footon ul li a{
    text-decoration: none;
    color: #fff;
    line-height: 95px;
    font-size: 12px;
}
.footdown{
    text-align: center;
    width: 1200px;
    height: 55px;
    margin: 0 auto;
    color: #8c8f97;
    line-height: 55px;
}
.our_service{
    width: 1200px;
    height: auto;
    margin: 0 auto;
}
.list_box{
    display: flex;
    margin-bottom: 70px;
}
.list_box .left,.list_box .right{
    width: 590px;
    height: 420px;
    overflow: hidden;
}
.list_box .right img{
    margin-top: 40px;
}
.list_box .right .text_box p{
    font-size: 21px;
    line-height: 10px;
    color: #273266;
}

.list_box .left_b,.list_box .right_b{
    width: 590px;
    height: 420px;
    overflow: hidden;
}
.list_box .left_b img{
    margin-top: 40px;
}
.list_box .left_b .text_box p{
    font-size: 21px;
    line-height: 10px;
    color: #273266;
}
.list_box .left_b{
    margin-right: 20px;
}
.service_proces{
    width: 1920px;
    margin-left: 0;
}
.service_proces h1{
    margin-left: 363px;
}
.service_proces img{
    width: 1920px;
    margin: 0 auto;
}
.contact_us{
    width: 1920px;
    height: 900px;
    margin: 0 auto;
    display: flex;
}
.right_c{
    width: 590px;
    height: 680px;
    box-shadow:10px 10px 10px #dadade;
    margin-left: 363px;
    border-radius: 20px;
}
form{
    width: 590px;
    height: 680px;
    border-radius: 20px;
    overflow: hidden;
}
form input{
    width: 530px;
    height: 60px;
    background: #eaf0f4;
    border-radius: 5px;
    color: #9ca3b5;
    padding-left: 21px;
    margin:15px 16px;
    border: none;
    font-size: 16px;
    outline: none;
}
form input:nth-of-type(1){
    margin-top: 40px;
}
form input:nth-of-type(5){
    background: #189afc;
    margin-left: 15px;
    width: 555px;
    color: #fff;
}
form input:nth-of-type(4){
    height: 210px;
}
.left_c img{
    margin-left: 102px;
}