.show{min-height:95vh}.show>.top{height:30px;background-color:#49555c}.show>.banner{background:url("https://www.edu.cn/c_images/cernet/ietf/banner-bg.png") no-repeat center center;background-size:cover;min-height:285px}.show>.banner .wrapper{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column}.show>.banner>.mask{background-color:rgba(51,56,65,.7);height:100%;min-height:340px}.show>.banner .wrapper{padding-top:15px;padding-bottom:45px}.show>.banner .wrapper img{width:130px;margin-bottom:40px}.show>.banner .wrapper h3{font-weight:700;color:#fff;font-size:40px;margin-bottom:20px}.show>.banner .wrapper p{color:#fff;font-size:20px}.show>.banner .wrapper p:nth-of-type(1){font-size:24px}.show>.content .wrapper .breadcrumb{padding:30px 0}.show>.content .wrapper .breadcrumb a{color:#49555c;font-size:20px}.show>.content .wrapper .breadcrumb a:hover{text-decoration:underline}.show>.content .wrapper .breadcrumb img{width:22px;vertical-align:top}.show>.content .wrapper .info{padding-bottom:50px}.show>.content .wrapper .info h4{font-weight:700;color:#49555c;font-size:24px;margin-bottom:14px}.show>.content .wrapper .info p{color:#333741;font-size:16px;margin-bottom:20px}.show>.content .wrapper .info .url{display:none}.player{margin-bottom:24px;min-height:600px;width:100%}
@media screen and (max-width:1199px){.show>.banner{min-height:340px}.player{min-height:400px}}
@media screen and (max-width:767px){.show>.banner{min-height:400px}.show>.banner>.mask{min-height:400px}.player{min-height:200px}}