.banner{width:100%;height:510px;background:url(img/about-banner.png) no-repeat 0 0;background-size:cover;background-position:50%}.menu-container{width:100%;border-bottom:1px solid #cdcdcd}.menu-wrapper{width:1200px;margin:0 auto;border-right:1px solid #cdcdcd}.menu-item{display:inline-block;width:165px;height:52px;background:#e4e4e4;color:#666;font-size:18px;line-height:52px;text-align:center}.menu-item.on{background:#ffa726;color:#fff}.menu-item:hover{background:#ffa726;color:#fff}.emoticon{font-size:18px;color:#666;height:52px;line-height:52px;margin-right:10px}.emoticon-icon{width:30px;height:30px;display:inline-block;background:url(img/tiger-head.png) no-repeat 0 0;background-size:100%;vertical-align:middle;margin-right:5px}.main{width:1200px;margin:0 auto;padding:34px 0 140px}.link{font-size:20px;color:#666;margin-bottom:86px}.link a:hover{color:#ffa726}.main-title{font-size:40px;text-align:center;margin-bottom:54px}.brief{text-align:center;margin-bottom:40px;line-height:28px;font-weight:200}.cooperation-list{margin-top:90px}.cooperation-list li{float:left;margin:0 50px 60px 0}.cooperation-list li:nth-child(4n){margin-right:0}.cooperation-list img{width:262px;height:170px}
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