@font-face{font-family:font-bold;src:url(https://new-edifier-us-oss.edifier.com/files/20230111/06fb3d4be835cdfda0fcc9e63f6c0392.ttf)}@font-face{font-family:font-normal;src:url(https://new-edifier-us-oss.edifier.com/files/20230111/48d656ed53e13d664de5cfdc7d3c438a.ttf)}.main{max-width:1520px;padding:0 10px;overflow:hidden;margin:0 auto}@media screen and (max-width:1600px){.main{max-width:1300px}}@media screen and (max-width:1300px){.main{max-width:1000px}}@media screen and (max-width:1000px){.main{max-width:800px}}@media screen and (min-width:881px){.banner{width:100%;height:520px;-o-object-fit:cover;object-fit:cover}.about-us{margin-top:-130px;padding-bottom:20px}.about-us .top{z-index:2;position:relative;background:hsla(0,0%,100%,.6);-webkit-box-shadow:0 4px 16px 1px rgba(0,0,0,.16);box-shadow:0 4px 16px 1px rgba(0,0,0,.16);padding:64px}.about-us .top .title{text-align:center;font-size:58px;line-height:1}.about-us .top .content{color:#1d1d1d}.about-us .top .content p+p{margin-top:24px}.group-block{padding-top:64px}.group-block .content .desc img{width:100%;height:auto;vertical-align:middle}.group{margin-bottom:128px;position:relative}.group .item{display:-webkit-box;display:-ms-flexbox;display:flex;position:relative;-webkit-box-align:center;-ms-flex-align:center;align-items:center;z-index:2}.group .item+.item{margin-top:32px}.group .item .img{width:50%;padding-top:45%;position:relative;-ms-flex-negative:0;flex-shrink:0}.group .item .img img{left:0;top:0;position:absolute;width:100%;height:100%;-o-object-fit:cover;object-fit:cover}.group .item .content{-webkit-box-flex:1;-ms-flex-positive:1;flex-grow:1;position:relative;color:#1d1d1d}.group .item .content p+p{margin-top:18px}.group .item .content li{list-style:none}.group .item:nth-child(odd) .content{padding-left:32px}.group .item:nth-child(2n){-webkit-box-orient:horizontal;-webkit-box-direction:reverse;-ms-flex-direction:row-reverse;flex-direction:row-reverse}.group .item:nth-child(2n) .content{padding-right:32px}}@media screen and (max-width:880px){.main{padding:0 .32rem;background-color:#f2f2f2}.main.group-block{background-color:#fff;padding:.64rem .32rem}.banner{width:100%;height:4.59rem;-o-object-fit:cover;object-fit:cover}.about-us .top{z-index:2;position:relative;padding:.85rem 0;background-color:#f2f2f2}.about-us .top .title{text-align:center;font-size:.85rem;line-height:1.4}.group{position:relative;padding-bottom:2rem}.group .item{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;z-index:2}.group .item+.item{margin-top:.8rem}.group .item .img{width:100%;height:8.77rem}.group .item .img img{width:100%;height:100%;-o-object-fit:cover;object-fit:cover}.group .item .content{width:100%;position:relative;color:#1d1d1d}.group .item .content p+p{margin-top:.32rem}.group .item .content li{list-style:none}.group .item .content .desc,.group .item .content .title{padding-top:.32rem}}