header {background-image: -webkit-linear-gradient(227deg, #343742 0%, #171920 100%);background-image: linear-gradient(-137deg, #343742 0%, #171920 100%);}  body {background-image: -webkit-linear-gradient(227deg, #343742 0%, #171920 100%);background-image: linear-gradient(-137deg, #343742 0%, #171920 100%);}  .header_nav ul {height: 88px;display: -webkit-box;display: -webkit-flex;display: -ms-flexbox;display: flex;-webkit-box-pack: start;-webkit-justify-content: flex-start;-ms-flex-pack: start;justify-content: flex-start;-webkit-box-align: center;-webkit-align-items: center;-ms-flex-align: center;align-items: center;}  .header_nav li:first-of-type {margin-right: 33px;}  .header_nav li img {max-height: 36px;}  body {background-size: 100%;}  .video--wrapped {width: 760px;height: 435px;position: fixed;top: 50%;left: 50%;-webkit-transform: translate(-50%, -50%);transform: translate(-50%, -50%);}  .wrapped_title {line-height: 30px;font-size: 15px;color: #fff;margin: 1.6rem auto;text-align: center;}  #playercontainer {width: 760px;height: 435px;max-height: 90vh;}  .jw-icon-barlogo-new {display: none !important;}  .finished {position: relative;}  .finished::before {content: "";width: 100%;height: 100%;background: rgba(0, 0, 0, 0.4);position: absolute;top: 0;left: 0;}  .finished::after {content: "直播结束";font-size: 20px;color: #fff;font-weight: bold;position: absolute;top: 50%;left: 50%;transform: translate(-50%, -50%);}  @media (max-width: 641px) {  .header_nav ul {height: 45px;}  .header_nav ul img {height: 20px;}  .header_nav li:first-of-type {margin-right: 10px;}  .video--wrapped {width: 100%;}  #playercontainer {width: 100% !important;height: 300px;}  body {background: #000;}  .finished::after {font-size: 14px;}  }