.about{
    width: 100%;
    height: 500px;
}
.about img{
    width: 100%;
    height: 500px;
}
.tech_abstract{
    width: 80%;
    padding-top: 30px;
    height: 350px;
    text-align: center;
    margin: 0 auto;
    line-height: 30px;
}
.abstract_text{
    margin-top: 20px;
    font-size: 20px;
}
.abstract_box{
    width: 100%;
    height: 350px;
    background-color: #F4F9F6;
}
.abstract_content{
    width: 80%;
    height: 320px;
    margin: 0 auto;
    text-align:center;
}
.abstract_content img{
    width: 200px;
    height: 200px;
    padding-top: 50px;
}
.abstract_content p{
    margin-top: 20px;
    font-size: 20px;
    color: #70C5BC;
    font-weight: 500;
}
.contact_title{
    text-align: center;
}
.contact{
    width: 80%;
    height: 500px;
    margin: 0 auto;
    padding-top: 30px;
    padding-bottom: 30px;
}
.contact_text{
    width: 70%;
    margin: 0 auto;
    margin-top: 130px;
}
.contact_text p{
    line-height: 20px;
    font-size: 18px;
}
.place{
    width: 100%;
    height: 380px;
    margin-top: 30px;
}
/*地图样式*/
#l-map{
    width: 100%; height: 400px;margin:0 auto;border-radius: 5px;
}