.home-video{padding:8% 0 3%;}
.home-video .list{display:flex;flex-wrap:wrap;justify-content: space-between;}
.home-video .list .item{width:24%;}
@media (max-width:768px){.home-video .list .item{width:49%;}
.home-video .list .item:nth-child(n+3){margin-top:2%;}}
@media (max-width:550px){.home-video .list .item{width:100%;}
.home-video .list .item:nth-child(n+2){margin-top:2%;}}
.home-project{padding-top:4%;}