.content-operation .card{width:400px;background-color:#fff;border-radius:6px;border:1px solid #e2e2e2;padding-bottom:24px}.content-operation .card img{width:400px;height:240px}.content-operation .card .content{padding:0 20px}.content-operation .card .content .title{color:#3987ad;font-family:PingFangSC-Medium;font-size:16px;margin-top:22px}.content-operation .card .content .desc{color:#535862;margin-top:15px}