.article-page { --page-width: 780px; }
.article-header { margin-bottom: 35px; }
.article-meta, .article-byline { color: var(--muted); font: 12px/1.7 Arial, Helvetica, sans-serif; }
.article-meta { margin-bottom: 18px; }
.article-meta span { margin: 0 10px; color: #b0b0a8; }
.article-header h1 { max-width: 710px; font-size: 34px; line-height: 1.22; margin-bottom: 18px; }
.article-byline { margin: 0; }
.article-tabs { margin-bottom: 32px; }
.article-panel[hidden] { display: none; }
.article-body p { margin: 0 0 22px; }
.article-body h2, .article-body h3 { scroll-margin-top: 28px; line-height: 1.4; }
.article-body h2 { margin: 44px 0 20px; font-size: 21px; }
.article-body h3 { margin: 34px 0 16px; font: 600 16px/1.4 Arial, Helvetica, sans-serif; }
.article-body ul { padding-left: 24px; margin: 0 0 24px; }
.article-body li { margin-bottom: 6px; }
.article-body a { overflow-wrap: anywhere; }
.article-body .footnote-link { color: var(--orange); font-size: 12px; text-decoration: none; white-space: nowrap; }
.article-body p[id^='footnote-'] { font-size: 14px; line-height: 1.75; scroll-margin-top: 24px; }
.article-body p[id^='footnote-']:target { background: #fff1e7; }
.article-body figure { margin: 28px 0 34px; }
.article-body video { display: block; width: 100%; height: auto; max-height: 620px; background: #111; object-fit: contain; }
.article-body figcaption { color: var(--muted); padding-top: 11px; }
.article-body .article-image { display: block; width: 100%; height: auto; margin: 28px 0; }
.article-body .demo { margin: 0 0 42px; }
.demo figcaption { padding-top: 0; padding-bottom: 16px; }
.demo figcaption p { margin: 0 0 9px; font: 18px/1.6 Georgia, 'Times New Roman', serif; color: var(--ink); }
.demo blockquote { margin: 10px 0; padding-left: 15px; border-left: 2px solid var(--line); font: 14px/1.7 Georgia, 'Times New Roman', serif; }
.source-link { font-size: 11px; }
.article-page footer { margin-top: 48px; }
@media (max-width: 560px) {
  .article-header h1 { font-size: 28px; }
  .article-body h2 { font-size: 19px; }
  .article-body video { max-height: 480px; }
}