.si-article-cover {
  width: min(100%, 960px);
  margin: 36px 0 0;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 16px;
}
.si-article-cover img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 630;
}
@media (max-width: 560px) {
  .si-article-cover { margin-top: 28px; border-radius: 10px; }
}