.about-us{background:#fff}.about-us .pc-mode.banner-bottom{background:#fff;position:relative}.about-us .pc-mode .banner-bottom-left{float:left;width:45%;text-align:right}.about-us .pc-mode .base-year h3{color:#000;font-size:35px;margin:0;font-style:normal}.about-us .pc-mode .base-year p{color:#000;font-size:13px;margin:1em 0 0;font-style:normal}.about-us .pc-mode .base-year p span{display:block}.about-us .pc-mode .banner-bottom-right{float:right;width:50%;border-left:5px solid #000;text-align:left;padding-left:5%}.about-us .pc-mode .year2018{margin-top:4em}.about-us .pc-mode .year2017{margin-top:22em}.about-us .pc-mode .year2016{margin-top:27em}.about-us .pc-mode .year2014,.about-us .pc-mode .year2015{margin-top:17em}.about-us .pc-mode .year2013{margin-top:19em}.about-us .pc-mode .year-pos{position:absolute;top:4.5%;left:50%;margin-left:-8.5px}.about-us .pc-mode .year-pos1{position:absolute;top:19.5%;left:50%;margin-left:-20.5px}.about-us .pc-mode .year-pos2{position:absolute;top:44%;left:50%;margin-left:-8.5px}.about-us .pc-mode .year-pos3{position:absolute;top:57.5%;left:50%;margin-left:-20.5px}.about-us .pc-mode .year-pos4{position:absolute;top:73%;left:50%;margin-left:-8.5px}.about-us .pc-mode .year-pos5{position:absolute;top:88%;left:50%;margin-left:-20.5px}.about-us .mobile-mode .year-item{margin-bottom:30px}.about-us .mobile-mode .year-item h3{margin-bottom:20px}.about-us .mobile-mode .year-item span{display:block;margin-bottom:10px}.about-us .company-certificate,.about-us .company-partner{margin-top:40px}.about-us .company-partner.mobile-partner .img-responsive{width:100%}