.about_us .panel-box{padding:80px 0}.about_us .about_us-banner{position:relative;width:100%;overflow:hidden}.about_us .about_us-banner .video-cont{z-index:-1;top:0;left:0;width:100%}.about_us .about_us-banner .video-cont video{-o-object-fit:cover;object-fit:cover}.about_us .about_us-banner .about-company{position:absolute;left:80px;top:0;width:100%;z-index:2;display:flex;flex-direction:column;justify-content:center;height:100%;margin-left:70px}.about_us .about_us-banner .about-company .company-name{font-size:400px;color:#fff;line-height:72px}.about_us .about_us-banner .about-company .company-history{margin-top:30px;width:630px;font-size:18px;color:#fff;line-height:25px}.about_us .address-info{background-color:#f6f8fa}.about_us .address-info .container{width:1140px;margin:0 auto;height:100%}.about_us .address-info .container .address-cont{display:flex;justify-content:space-between}.about_us .address-info .container .address-cont .address-info-desc{padding-top:50px;font-family:PingFangSC-Regular,PingFang SC}.about_us .address-info .container .address-cont .address-info-desc .contact-us{font-size:38px;font-weight:500;color:#333;line-height:53px}.about_us .address-info .container .address-cont .address-info-desc .contact-address{margin-top:30px;font-size:16px;font-weight:400;color:#000}.about_us .address-info .container .address-cont .address-info-desc .contact-address p{margin-bottom:34px;line-height:22px}.about_us .address-info .container .address-cont .address-info-map .map-wrapper .map-header{position:relative;width:100%}.about_us .address-info .container .address-cont .address-info-map .map-wrapper .map-header .tab-bar{position:absolute;bottom:0;left:0;width:50%;height:6px;background:#4f7bff;transition:left .5s}.about_us .address-info .container .address-cont .address-info-map .map-wrapper .map-header .yw-bar{left:50%}.about_us .address-info .container .address-cont .address-info-map .map-wrapper .map-header .map-header-item{cursor:pointer;font-size:16px;font-weight:400;color:#000;display:inline-block;width:50%;height:52px;background:#fff;line-height:52px;text-align:center}.about_us .address-info .container .address-cont .address-info-map .map-wrapper .map-header .map-header-item.header-active{font-weight:500;font-size:18px;color:#4f7bff}.about_us .address-info .container .address-cont .address-info-map .map-wrapper .map-cont{width:627px;height:356px;background:#d8d8d8;position:relative}.about_us .address-info .container .address-cont .address-info-map .map-wrapper .map-cont .map-bg{position:absolute;top:0;left:0;width:100%;height:100%;-o-object-fit:cover;object-fit:cover;background-size:100%;background-position:50%}.about_us .address-info .container .address-cont .address-info-map .map-wrapper .map-cont .map-yw{background-image:url(/img/map/map_yw.png)}.about_us .address-info .container .address-cont .address-info-map .map-wrapper .map-cont .map-hz{background-image:url(/img/map/map_hz.png)}