@media(max-width:900px){
  .article-layout{grid-template-columns:1fr}
  .article-meta-sticky,.article-aside{position:static}
}
@media(max-width:720px){
  .article-hero{padding-top:120px}
  .article-cover{height:480px}
  .article-content p{font-size:1.3rem}
}