.knowledge-figure {
  max-width: 780px;
  margin: 2rem 0;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #f8fafb;
}

.knowledge-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.knowledge-figure figcaption {
  margin-top: .75rem;
  color: var(--muted);
  font-size: .92rem;
}

.knowledge-table-wrap {
  max-width: 780px;
  overflow-x: auto;
  margin: 1.25rem 0 2rem;
}

.knowledge-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: .96rem;
}

.knowledge-table th,
.knowledge-table td {
  padding: .7rem .8rem;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.knowledge-table th {
  color: var(--navy);
  background: #e7edf1;
}

body:has(.knowledge-article) {
  --article-soft: #e8edf1;
  --article-soft-strong: #d6e0e6;
  --article-accent: #667d8b;
  --article-accent-dark: #405563;
}

body:has(.knowledge-article) .article-hero {
  color: var(--navy);
  background:
    radial-gradient(circle at 85% 15%, rgba(255,255,255,.72), transparent 36%),
    linear-gradient(118deg, var(--article-soft-strong), var(--article-soft));
  border-bottom: 1px solid var(--article-accent);
}

body:has(.knowledge-article) .article-hero .kicker,
body:has(.knowledge-article) .back-link .text-link {
  color: var(--article-accent-dark);
}

body:has(.knowledge-article) .article-hero .lead {
  color: #344650;
  text-shadow: none;
}

body:has(.knowledge-article) .article-meta {
  color: #52626c;
}

body:has(.knowledge-article) .article-intro {
  border-left-color: var(--article-accent);
  background: var(--article-soft);
}

.knowledge-formula { max-width: 780px; padding: 1.25rem; margin: 1.25rem 0; background: #f0f4f6; font-size: 1.35rem; }
.knowledge-article math { font-family: math; }
.knowledge-article h3 { margin-top: 1.6rem; }