#AboutUs{width:1583px;background-color:#f8f9fb;margin:0 auto}#AboutUs .AboutUsHeader{width:1583px;height:620px;background:url(../img/banner@2x.722d030c.png) no-repeat;background-size:1583px 620px;background-position:50%;margin:0 auto}#AboutUs .AboutUsCenter{width:100%;margin:80px auto 45px}#AboutUs .AboutUsCenter .dtsum{width:1220px;margin:0 auto;display:flex}#AboutUs .AboutUsCenter .dtsum img{width:546px;height:428px}#AboutUs .AboutUsCenter .dtsum .dtsumProduce{margin-left:40px}#AboutUs .AboutUsCenter .dtsum .dtsumProduce .dtsumName{font-size:20px;font-family:Source Han Sans CN;font-weight:700;color:#333;margin-top:46px}#AboutUs .AboutUsCenter .dtsum .dtsumProduce .dtsumDetail{width:610px;height:72px;font-size:16px;font-family:Source Han Sans CN;font-weight:400;line-height:28px;color:rgba(51,51,51,.85);margin-top:40px}#AboutUs .AboutUsCenter .dtsum .dtsumProduce .dtsumSlogan{width:610px;height:44px;font-size:16px;font-family:Source Han Sans CN;font-weight:500;line-height:28px;color:#1e90ff;margin-top:30px}#AboutUs .AboutUsCenter .dtsum .dtsumProduce .dtsumText{width:610px;height:100px;font-size:16px;font-family:Source Han Sans CN;font-weight:400;line-height:28px;color:rgba(51,51,51,.85);margin-top:30px}#AboutUs .AboutUsCenter .companyEvent{width:1220px;margin:60px auto 0}#AboutUs .AboutUsCenter .companyEvent .companyEvents{font-size:20px;font-family:Source Han Sans CN;font-weight:700;color:#333}#AboutUs .AboutUsCenter .companyEvent .comEventImg{width:1220px;height:243px;padding:0;display:flex;justify-content:space-between}#AboutUs .AboutUsCenter .companyEvent .comEventImg li:first-child img{width:431px;height:243px}#AboutUs .AboutUsCenter .companyEvent .comEventImg li:nth-child(2) img,#AboutUs .AboutUsCenter .companyEvent .comEventImg li:nth-child(3) img{width:364px;height:243px}#AboutUs .AboutUsCenter .dtsumCertificate{margin:80px auto;text-align:center}#AboutUs .AboutUsCenter .dtsumCertificate .dtsumCerTit{font-size:20px;font-family:Source Han Sans CN;font-weight:700;color:#333;opacity:1}#AboutUs .AboutUsCenter .dtsumCertificate .btns{width:449px;height:40px;margin:30px auto 0;display:flex;justify-content:space-between}#AboutUs .AboutUsCenter .dtsumCertificate .btn1,#AboutUs .AboutUsCenter .dtsumCertificate .btnn{width:124px;height:40px;cursor:pointer;line-height:40px}#AboutUs .AboutUsCenter .dtsumCertificate .btn1{color:#fff;background:#1e90ff;border-radius:6px}#AboutUs .AboutUsCenter .dtsumCertificate .textPro{font-size:16px;font-family:Source Han Sans CN;font-weight:400;color:rgba(51,51,51,.85)}.el-backtop img{width:30px;height:30px}.el-button--primary{background:transparent}