body{
    margin: 0;
}
.home{
    min-width: 1200px;
    width: 1200px;
    overflow: hidden;
    margin: 0 auto;
}
.header_wrap{
    width: 100%;
    background: rgba(0,0,0,0.7);
}
.head{
    width: 1200px;
    margin: 0 auto;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 0 100px;
}
.head div{
    padding: 0 20px;
    color: white;
}
.banner{
    position: relative;
    height: 750px;
}
.banner_content{
    height: 630px;
    background: #13eadd;
}
.banner_content .banner_content_text{
    position: absolute;
    left: 150px;
    top: 250px;
}
.banner_content .banner_content_text .title{
    font-size: 60px;
    font-weight: bold;
}
.banner_content .banner_content_text .text{
    font-size: 20px;
    
}
.banner_content .banner_content_text .btn{
    font-size: 14px;
    padding: 0 20px;
    margin-top: 80px;
    background: #fecd50;
    border-radius: 16px;
    line-height: 22px;
    display: inline-block;
}
.banner img{
    position: absolute;
    top: 0;
    left: 0;
    width: 1200px;
}
.middle_content{
    width: 1200px;
    height: 750px;
    background: url(./imgs/icon_2.png) no-repeat center center;
    background-size: 1200px 750px;
    position: relative;
}

.middle_content .middle_content_text {
    width: 500px;
    position: absolute;
    top: 150px;
    right: 200px;
}
.middle_content .middle_content_text .text{
    font-size: 14px;
    line-height: 24px;
    width: 400px;
    margin-top: 20px;
}
.middle_content .middle_content_text .title{
    font-size: 40px;
    font-weight: bold;
}
.service {
    background: url(./imgs/service_bg.png) no-repeat top left;
    padding: 0 30px;
}
.service .title{
    font-size: 40px;
    font-weight: bold;
    text-align: center;
}
.service_list{
    display: flex;
    align-items: center;
    justify-content: space-around;
    margin-top: 40px;
   
}
.service_list .service_list_item{
    width: 280px;
    height: 450px;
    flex-shrink: 1;
    border-radius: 16px;
    background: white;
    text-align: center;
    padding: 20px 30px;
    flex-shrink: 0;
    box-shadow: 4px 4px 10px 0px rgba(141,131,131,0.5);
}
.service_list .service_list_item img{
    width: 100%;
}
.service_list .service_list_item .title{
    font-size: 20px;
    font-weight: bold;
    line-height: 40px;
}
.about{
    padding-bottom: 100px;
}
.about_content{
    width: 900px;
    padding: 50px 150px 100px;
    box-sizing: border-box;
    background: rgba(194,194,194,0.4);
}
.about_content .title{
    font-size: 40px;
    font-weight: bold;
    text-align: left;
}
.about_content .text{
    padding: 30px 50px 0;
}
.about img{
    width: 100%;
}
.footer{
    background: #2e302e;
    padding: 106px 177px;
    font-size: 20px;
    font-weight: 500;
    color: #FFFFFF;
    line-height: 24px;
}
.footer .content{
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
    width: 1000px;
    margin: 0 auto;

}
.footer .content .content-item {
    width: 50%;
    flex-shrink: 0;
    margin-bottom: 46px; 
}