/* 视频中心 */
.md21642.md-video_center{width: 100%;background-color: #f7f7f7;}
.md21642.md-video_center img{display: inline-block;vertical-align:middle;max-width: 100%;}
.md21642.md-video_center .layout{width: 16rem;max-width: 92%;margin: 0 auto;}
.md21642.md-video_center .my-top{width: 100%;padding-bottom: .5rem;text-align: center;}
.md21642.md-video_center .my-titles{width: 100%;color: #111111;font-weight: bold;line-height: 1.25;}
.md21642.md-video_center .wb-one{width: 100%;padding: 1rem 0 .5rem;}
.md21642.md-video_center .wb-cont{width: calc(100% + .3rem);position: relative;left: -.15rem;display: flex;flex-wrap: wrap;}
.md21642.md-video_center .wb-item{width: 33.33%;padding: 0 .15rem;margin-bottom: .45rem;}
.md21642.md-video_center .wb-link{display: block;cursor: pointer;width: 100%;}
.md21642.md-video_center .wb-imgbox{position: relative;}
.md21642.md-video_center .wb-img{width: 100%;position: relative;overflow: hidden;padding-top: calc(288/513*100%);}
.md21642.md-video_center .wb-img img{position: absolute;top: 0;left: 0;width: 100%;height: 100%;object-fit: cover;transform: scale(1.00);transition: all ease .5s;}
.md21642.md-video_center .wb-play{transition: all  .3s; position: absolute;top: 50%;left: 50%;transform: translate(-50%,-50%); border-radius: 50%;border: solid 1px #ffffff;}
.md21642.md-video_center .wb-play img{width: .5rem;height: .5rem;border-radius: 50%;object-fit: contain;}
.md21642.md-video_center .wb-text{width: 100%;padding: .2rem .2rem 0;}
.md21642.md-video_center .wb-name{width: 100%;color: #111111;font-weight: bold;line-height: 1.5;}
.md21642.md-video_center .wb-link:hover .wb-img img{transform: scale(1.05);}
.md21642.md-video_center .wb-link:hover .wb-play{background-color: var(--active);border: solid 1px var(--active);}
.md21642.md-video_center .wb-one:nth-child(2n){background-color: #fff;}  
@media (max-width: 750px) {
   .md21642.md-video_center .wb-item{width: 50%;}
}