.list_sjmd .news_list{display:flex;flex-wrap: wrap;margin: 0 -20px;}
.list_sjmd .news_list li.news{width: 33.33%;margin-bottom: 20px;}
.list_sjmd .news_list li.news .news_box{
    display: block;
    padding: 0 20px;
}
.list_sjmd .news_list li.news .news_video{display: block;position:relative;overflow:hidden;padding-top: 66.66%;}
.list_sjmd .news_list li.news .news_video video{width:100%;height:100%;object-fit:contain;position: absolute;left: 0;top: 0;}
.list_sjmd .news_list li.news .news_title{display: block;text-align:center;}
/* 保留居中圆形播放按钮 */
.list_sjmd .news_list li.news .news_video video::-webkit-media-controls-overlay-play-button {
  display: flex !important;
}
/* 屏蔽其他多余控件兜底 */
.list_sjmd .news_list li.news .news_video video::-webkit-media-controls-timeline,
.list_sjmd .news_list li.news .news_video video::-webkit-media-controls-current-time-display,
.list_sjmd .news_list li.news .news_video video::-webkit-media-controls-time-remaining-display,
.list_sjmd .news_list li.news .news_video video::-webkit-media-controls-volume-slider,
.list_sjmd .news_list li.news .news_video video::-webkit-media-controls-mute-button,
.list_sjmd .news_list li.news .news_video video::-webkit-media-controls-fullscreen-button {
  display: none !important;
}