.aboutUs{min-width:1200px;overflow:auto}.extensiveApplicationHeader{background-color:#fff;background-image:none}.productContent{background-image:url(/image/companyBg.png);background-repeat:no-repeat;background-size:cover;color:#fff;line-height:30px;width:100%}.companyWrapper{margin:auto;width:1100px}.companyIntroduction{font-size:14px;margin:30px 0}.developmentHistory{background-color:#fff;text-align:center}.imgWrapper{display:inline-block;margin:40px 0;position:relative}.certificateContent{display:flex;flex-wrap:wrap;font-size:12px;justify-content:space-between;margin:auto;padding:0 0 30px;width:1100px}.certificateItem{margin-top:40px;text-align:center;width:275px}.certificateYear{font-size:16px;margin:10px 0}.contactUsWrapper{background-color:#f4f8ff}.contactUsContent{display:flex;justify-content:center;padding:40px 0}.contactItem{background-color:#fff;border:1px solid #f4f8ff;border-radius:4px;cursor:pointer;margin:0 20px;padding:50px 30px;text-align:center;transition:all .3s linear;width:230px;width:245px}.contactItem:hover{border-color:#1e78ff;box-shadow:0 0 16px 0 rgba(34,78,179,.15)}.serveContent{color:rgba(0,0,0,.6);font-size:14px;height:48px;line-height:24px;margin:20px 0}.btn{background-color:#4285fc;color:#fff;cursor:pointer;font-size:14px;margin:auto;padding:10px 0;text-align:center;width:100px}.developDate{font-size:22px;font-weight:700}.developDescription{font-size:14px;line-height:18px;padding:10px 0 5px;width:110px}.developItem{position:absolute}.develop1{left:-36px;top:209px}.develop2{left:61px;top:110px}.develop3{left:165px;top:176px}.develop4{left:280px;top:23px}.develop5{left:398px;top:159px}.develop6{left:483px;top:-25px}.develop7{left:604px;top:95px}.develop8{left:720px;top:-20px}.develop9{left:842px;top:76px}.certificateName{font-size:14px;line-height:20px}.linkTitle{font-size:24px}.Footer .companyContentWrapper{overflow:auto}.Footer .companyContentItemWrapper{flex:0 0 auto}