.article-shell {
  width: min(100% - 48px, 760px);
  margin: auto;
  padding: 56px 0 96px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 44px;
  color: var(--dim);
  font-size: 0.82rem;
}

.breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

.article-header {
  padding-bottom: 36px;
  border-bottom: 1px solid var(--line);
}

.article-header h1 {
  margin: 14px 0 20px;
  font-size: clamp(2.5rem, 7vw, 4.4rem);
  line-height: 1.08;
}

.article-deck {
  color: var(--muted);
  font-size: 1.16rem;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 24px;
  color: var(--dim);
  font-size: 0.82rem;
}

.article-toc,
.article-checklist,
.article-notice {
  margin: 36px 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
}

.article-toc strong {
  display: block;
  margin-bottom: 12px;
}

.article-toc ol,
.article-checklist ul {
  margin: 0;
  padding-left: 20px;
}

.article-toc a {
  color: var(--muted);
  text-decoration: none;
}

.article-body h2 {
  margin: 56px 0 16px;
  font-size: clamp(1.7rem, 4vw, 2.2rem);
}

.article-body h3 {
  margin: 32px 0 12px;
  font-size: 1.18rem;
}

.article-body p,
.article-body li {
  color: var(--text);
  font-size: 1rem;
  line-height: 1.85;
}

.article-body li + li {
  margin-top: 8px;
}

.article-notice {
  border-left: 2px solid var(--accent);
}

.article-cta {
  margin-top: 64px;
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--raised);
}

.article-related {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

@media (max-width: 760px) {
  .article-shell {
    width: min(100% - 32px, 760px);
    padding-top: 40px;
  }

  .article-header h1 {
    font-size: 2rem;
  }
}