:root {
  --article-blue: #0A2540;
  --article-gold: #D4AF37;
  --article-ink: #172434;
  --article-muted: #566474;
  --article-light: #f3f7fa;
  --article-border: #dbe4ea;
}

.article-page .site-header {
  background: #fff;
  color: var(--article-blue);
  box-shadow: 0 1px 12px rgba(10, 37, 64, .09);
}

.article-main { padding-top: 78px; }
.article-shell { width: min(860px, calc(100% - 40px)); margin: auto; }
.article-hero { padding: 56px 0 42px; background: linear-gradient(135deg, #f5f8fa, #fff); border-bottom: 1px solid var(--article-border); }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 7px; margin: 0 0 22px; color: var(--article-muted); font-size: .82rem; }
.breadcrumbs a { color: var(--article-blue); font-weight: 700; }
.article-kicker { margin: 0 0 12px; color: #806000; font-size: .75rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
.article-hero h1 { max-width: 790px; margin: 0; color: var(--article-blue); font-size: clamp(2.2rem, 5vw, 4rem); line-height: 1.08; letter-spacing: -.04em; }
.article-deck { max-width: 760px; margin: 20px 0 0; color: var(--article-muted); font-size: 1.12rem; }
.article-meta { display: flex; flex-wrap: wrap; gap: 10px 18px; margin: 24px 0 0; color: var(--article-muted); font-size: .83rem; }
.article-image { margin: 0; }
.article-image img { display: block; width: 100%; height: auto; max-height: 430px; object-fit: cover; }
.article-image figcaption { margin-top: 8px; color: var(--article-muted); font-size: .75rem; }
.article-body { padding: 46px 0 70px; }
.article-body h2 { margin: 42px 0 14px; color: var(--article-blue); font-size: clamp(1.6rem, 3vw, 2.25rem); line-height: 1.18; }
.article-body h3 { margin: 26px 0 8px; color: var(--article-blue); font-size: 1.16rem; }
.article-body p, .article-body li { color: var(--article-ink); }
.article-body p { margin: 0 0 18px; }
.article-body ul, .article-body ol { margin: 0 0 22px; padding-left: 24px; }
.article-body li { margin: 0 0 9px; }
.article-body a { color: var(--article-blue); font-weight: 700; text-underline-offset: 3px; }
.article-notice, .product-context { margin: 26px 0; padding: 18px 20px; border-radius: 10px; }
.article-notice { background: #fff8df; border-left: 3px solid var(--article-gold); color: var(--article-ink); }
.product-context { background: var(--article-light); border-left: 3px solid var(--article-blue); }
.author-card { display: grid; grid-template-columns: 64px 1fr; gap: 16px; align-items: center; margin: 36px 0; padding: 22px; background: #fff; border: 1px solid var(--article-border); border-radius: 12px; }
.author-card img { width: 64px; height: 64px; object-fit: cover; border-radius: 50%; }
.author-card h2 { margin: 0 0 4px; font-size: 1.05rem; }
.author-card p { margin: 0; color: var(--article-muted); font-size: .86rem; }
.article-page .faq-list { display: grid; gap: 12px; }
.article-page .faq-list details { border: 1px solid var(--article-border); border-radius: 10px; background: #fff; }
.article-page .faq-list summary { padding: 16px 18px; color: var(--article-blue); font-weight: 700; cursor: pointer; }
.article-page .faq-list p { padding: 0 18px 16px; margin: 0; }
.references { padding: 24px; border-top: 1px solid var(--article-border); border-bottom: 1px solid var(--article-border); }
.references h2 { margin-top: 0; }
.references li { font-size: .9rem; }
.related-articles { margin-top: 38px; padding: 28px; background: var(--article-light); border-radius: 12px; }
.related-articles h2 { margin-top: 0; }
.related-articles ul { margin-bottom: 0; }
.article-footer-link { display: inline-flex; min-height: 44px; align-items: center; margin-top: 30px; color: var(--article-blue); font-weight: 700; }
.article-page .site-footer { margin-top: 0; }

@media (max-width: 720px) {
  .article-main { padding-top: 70px; }
  .article-hero { padding: 40px 0 32px; }
  .article-body { padding: 32px 0 55px; }
  .author-card { grid-template-columns: 52px 1fr; }
  .author-card img { width: 52px; height: 52px; }
  .article-image img { max-height: 300px; }
}