:root {
  --surface-radius: 21px;
}

/* Shared content surfaces match the homepage panel geometry. */
.panel,
.modal,
.side-card,
.circle-side-panel,
.circle-card,
.circle-intro,
.circle-compose,
.circle-post,
.topic-card,
.topic-intro,
.topic-compose,
.topic-post,
.topic-side-card,
.work-card,
.work-hero,
.work-side-card,
.author-hero,
.author-side-card,
.author-work,
.home-works-showcase,
.post-cover,
.post-visual,
.series-gallery figure,
.circle-card > img,
.topic-top img,
.article-hero,
.article-body::before,
.comment-form,
.stats article {
  border-radius: var(--surface-radius) !important;
}