.banner-w .demo-bg{background:url(/static/image/homePage_bg_4.png) no-repeat}.banner-w .demo-info{margin:0 auto;width:1100px;text-align:left}.demo-info h2{margin-bottom:25px}.demo-info h2,.demo-info h3{text-align:left}.operation-manage-c{position:relative;margin:50px auto;width:1301px}.operation-manage-w .item{float:left;display:block;position:relative;margin:20px 10px 0;padding:30px 30px 0;width:630px;height:192px;background:#fff;box-shadow:0 0 16px 0 rgba(139,138,138,.12)}.operation-manage-w.last-node .item{height:222px}.operation-manage-w .item .item-tit-w{position:relative;width:100%;margin-bottom:5px;padding-bottom:10px;border-bottom:1px solid #e1eafe}.operation-manage-w .item .item-tit-w .iconfont-w{float:left;margin-right:33px;width:50px;height:50px;background:#497df5}.operation-manage-w .item .item-tit-w .iconfont-w i{font-size:35px!important}.operation-manage-w .item .item-tit-w .item-tit{float:left;width:calc(100% - 83px)}.operation-manage-w .item .item-tit-w .item-tit h3{font-size:20px;font-weight:700;color:#336df4}.operation-manage-w .item .item-tit-w .item-tit p{margin-top:2px;font-size:16px;font-weight:400;color:#9f9f9f}.operation-manage-w .item>p{font-size:14px;font-weight:400;color:#000;line-height:28px;letter-spacing:1px}.operation-manage-w .item>p.line-height_normal{margin-top:2px;line-height:normal}.operation-manage-w .item>p::before{position:relative;top:-3px;display:inline-block;margin-right:10px;width:4px;height:4px;border-radius:50%;background:#487cf5;content:""}.operation-manage-f{position:relative;margin:0 auto 120px;width:917px;height:731px;background:url(/static/image/video_bg.png) center no-repeat}.operation-manage-f .video{position:relative;margin:39px auto 0 39px;width:calc(100% - 78px);height:calc(100% - 259px)}@media (max-width:750px){.banner-w .demo-info{margin:0 auto;width:92%;text-align:left}.demo-info h2{margin-bottom:15px}.operation-manage-w{position:relative;width:100%;margin:0 auto;padding:0}.operation-manage-c,.operation-manage-w .module-tit{width:92%;margin:0 auto;background-color:transparent}.operation-manage-w .item{float:none;margin:15px auto;padding:15px;width:100%;height:auto}.operation-manage-w.last-node .item{height:auto}.operation-manage-w .item .item-tit-w{position:relative;width:100%;padding-bottom:5px}.operation-manage-w .item .item-tit-w .iconfont-w{margin-right:10px;width:30px;height:30px}.operation-manage-w .item .item-tit-w .iconfont-w i{font-size:.17rem!important}.operation-manage-w .item .item-tit-w .item-tit{width:calc(100% - 40px)}.operation-manage-w .item .item-tit-w .item-tit h3{font-size:.13rem}.operation-manage-w .item .item-tit-w .item-tit p{margin-top:0;font-size:12px}.operation-manage-w .item>p,.operation-manage-w .item>p.line-height_normal{margin-top:4px;line-height:20px}.operation-manage-w .item>p{font-size:.13rem}.operation-manage-f{position:relative;margin:0 auto 28px;width:3.45rem;height:2.76rem;background:url(/static/image/video_bg2.png) center no-repeat;background-size:100% auto}.operation-manage-f .video{width:calc(100% - .28rem);height:calc(100% - .94rem);margin-left:.14rem;margin-top:.14rem}}