.video_main{padding-top:var(--pd120)}.video_main .desc{font-weight:400;font-size:16px;color:#666666;line-height:30px;margin-top:27px}.video_main .lists{--pd:31px;--mt:32px;margin-top:32px}.video_main .lists .item{padding:44px 37px;background:#ffffff;border-radius:16px 16px 16px 16px}.video_main .lists .item:hover .img .mark{opacity:1;visibility:visible}.video_main .lists .item .img{padding-bottom:78%;border-radius:12px 12px 12px 12px;z-index:1}.video_main .lists .item .img .mark{background:rgba(0,0,0,0.3);position:absolute;left:0;top:0;width:100%;height:100%;z-index:2;opacity:0;visibility:hidden;transition:all .3s ease}.video_main .lists .item .img .v_play{z-index:3}.video_main .lists .item .title{font-family:Open Sans;font-weight:bold;font-size:32px;color:#333333;margin-top:19px}@media screen and (max-width:1366px){.video_main .lists .item .title{font-size:24px}.v_play{--v-wh:80px}}@media screen and (max-width:950px){.video_main .lists .item .title{font-size:18px}}