.about .banner-wrapper{height:501px;background-image:url(../images/about/banner.png)}.about .leading{margin-top:120px}.about__header{font-size:36px;line-height:50px;color:#333333;text-align:center}.about-us .about__header{padding:83px 0 68px}.about-us__one{display:flex;align-items:center;justify-content:flex-end;margin:48px 0 44px;width:1190px;margin:0 auto;height:448px;background:url(../images/about/1.png) no-repeat center/cover}.about-us__description{color:#666666;font-size:18px;line-height:34px}.about-us__two{display:flex;align-items:center;margin:48px auto 44px;width:1315px;height:425px;background:url(../images/about/2.png) no-repeat right center/contain}.about-us__two .about-us__description{margin-left:144px}.about-us__three{width:100%;height:640px;margin-bottom:114px}.about-us__three img{display:block;width:100%}.concat-us{width:1200px;margin:0 auto}.concat-us .about__header{margin-bottom:64px}.concat-us img{display:block}.concat-us ul{display:flex;flex-wrap:wrap;padding:55px 90px 130px}.concat-us ul li{flex:0 0 340px;margin-bottom:30px;font-size:18px;line-height:40px}.concat-us ul li h4{color:#333}.concat-us ul li span{color:#999}