.project_bg{
    width: 100%;
    height: 1557px;
    background-image: url(../img/cd11.jpg);
    background-repeat: no-repeat;
    background-position: center center;
    background-size: 1920px 100%;
    min-width: 1280px;
}
.center{
    width: 1280px;
    margin: auto;
}
.box1{
    width: 100%;
    height: 497px;
    min-width: 1280px;
}
.box1 span{
    font-size: 48px;
    color: #fff;
    padding-top: 170px;
    display: block;
    text-shadow:1px 1px 6px #1c7965;
}
.box1 p{
    font-size: 14px;
    color: #d7f9e3;
    margin-top: 30px;
    width: 470px;
}
.box2 {
    width: 100%;
}

.box2 .box2cont{
    display: flex;
    flex-wrap: wrap;
    background-color: #fff;
    box-shadow: 0px 0px 20px 2px rgba(218,218,218,0.45);
    align-items: center;
    height: 200px;
    border-radius: 10px;
    justify-content: space-around;
}
.box2 .box2cont .box2list{
    width: 212px;
    height: 130px;
    position: relative;
}
.box2 .box2cont .box2list::after{
    position: absolute;
    content: "";
    width: 0px;
    height: 100%;
    border-right: 1px dashed #9d9c9c;
    right: 0;
    top: calc(50% - 65px);
}
.box2 .box2cont .box2list:last-child:after{
    display: none;
}
.box2 .box2cont .box2list::before{
    position: absolute;
    content: "";
    width: 3px;
    height: 26px;
    left: -2px;
    top: 0;
    background-color: #90c4fd;
}
.box2 .box2cont .box2list:first-child:before{
    display: none;
}
.box2 .box2cont .box2list img{
    width: 45px;
    height: 35px;
    display: block;
    margin: auto;
}
.box2 .box2cont .box2list p{
    font-size: 13px;
    color: #292f33;
    text-align: center;
    margin-top: 25px;
}
.box3{
    width: 100%;
    min-width: 1280px;
}
.box3 .center {
    position: relative;
    padding-top: 90px;
    box-sizing: border-box;
}
.box3 .center >span{
    font-size: 36px;
    color: #000000;
    text-align: center;
    display: block;
}
.box3 .center .box3_cont{
    height: 600px;
    background-image: url(../img/cd2.png);
    background-repeat: no-repeat;
    background-position: center center;
    background-size: 100% 100%;
    display: flex;
    align-items: center;
    margin-top:  70px;
}
.box3 .center .bdlas{
    font-size: 21.33px;
    color: #000000;
    position: absolute;
}
.box3 .center .bdlas.bdlas1{
    top: 229px;
    left: 222px;
}
.box3 .center .bdlas.bdlas2{
    top: 326px;
    left: 210px;
}
.box3 .center .bdlas.bdlas3{
    top: 434px;
    left: 90px;
}
.box3 .center .bdlas.bdlas4{
    top: 540px;
    left: 215px;
}
.box3 .center .bdlas.bdlas5{
    top: 641px;
    left: 250px;
}
.box3 .center .bdlas.bdlas6{
    top: 228px;
    left: 891px;
}
.box3 .center .bdlas.bdlas7{
    top: 326px;
    left: 949px;
}
.box3 .center .bdlas.bdlas8{
    top: 434px;
    left: 982px;
}
.box3 .center .bdlas.bdlas9{
    top: 540px;
    left: 949px;
}
.box3 .center .bdlas.bdlas10{
    top: 642px;
    left: 914px;
}
.box4{
    width: 100%;
    background-color: #f3fafa;
    min-width: 1280px;
    padding-top: 75px;
    padding-bottom: 2px;
}
.box4 .box4tit span{
    font-size: 36px;
    color: #000000;
    text-align: center;
    display: block;
}
.box4 .box4tit p{
    font-size: 16px;
    color: #000000;
    text-align: center;
    margin-top: 20px;
}
.box4 .box4cont{
    display: flex;
    margin-top: 100px;
    justify-content: space-around;
    flex-wrap: wrap;
}
.box4 .box4cont .list{
    width: 250px;
    margin-bottom: 75px;
}
.box4 .box4cont .list .listimg{
    width: 56px;
    height: 56px;
    margin: auto;
}
.box4 .box4cont .list .listimg img{
    width: 100%;
    height: 100%;
    display: block;
}

.box4 .box4cont .list p{
    font-size: 16px;
    line-height: 25px;
    color: #000000;
    margin-top: 20px;
    text-align: center;
}