.banner{
    width: 100%;
    height: 580px;
    /* background: url("../img/about_banner.jpg") center; */
    background: url("../../img/banner5.png") center;
}
.understand{
    padding-top: 48px;


}
/*html {
 
filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);
 
-webkit-filter: grayscale(100%);}
*/
.img_title{
    width: 100%;
    text-align: center;
    margin-bottom: 54px;
}
.img_title img{
    width: 156px;
    height: 82px;
}
.understand p{
    width: 1200px;
    margin: 0 auto;
    font-family: PingFangSC-Regular;
    font-size: 16px;
    color: #666666;
    letter-spacing: 0.52px;
    line-height: 30px;
}
.img_title_two{
    margin-top: 70px;
}
.img_title_two img{
    width: 126px;
}

.link_list{
    overflow: hidden;
    width: 1200px;
    margin: 0 auto;
    padding-bottom: 93px;
}
.link_list li{
    overflow: hidden;
    border: 1px solid #E9E9E9;
    border-radius: 2px;
    margin-bottom: 20px;
}
.link_list li img{
    width: 195px;
    height: 132px;
    float: left;
    margin-right: 32px;
}
.news_link{
    float: left;
}
.link_list li  a h4{
    margin: 24px 0 16px 0;
    font-family: PingFangSC-Medium;
    font-size: 16px;
    color: rgba(0,0,0,0.85);
    line-height: 24px;
}
.link_list li a p{
    width: 879px;
    font-family: PingFangSC-Regular;
    font-size: 14px;
    color: rgba(0,0,0,0.45);
    line-height: 22px;
}

.headText{
    width: 100%;
    /* height: 580px; */
    color:white; 
    font-size: 60px;
    font-weight: 600; 
    text-align: center;
    /* padding: 390px; */
    padding-top: 290px;

}