.article-page {
  padding-top: 0.35rem;
}

.article-header {
  margin: 1.4rem 0 1.2rem;
  padding: clamp(1.2rem, 2.6vw, 2rem);
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 252, 248, 0.9);
  box-shadow: var(--shadow);
}

.article-header h1 {
  font-family: var(--font-body);
  font-size: clamp(1.9rem, 3.4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin: 0.65rem 0 0.9rem;
  max-width: 62rem;
  text-wrap: balance;
}

.article-header .meta-row {
  margin: 0;
}

.article-summary {
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.45vw, 1.1rem);
  line-height: 1.75;
  max-width: 62rem;
  margin: 0;
  padding: 0 0 0 1rem;
  border: 0;
  border-left: 3px solid rgba(15, 107, 107, 0.38);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  color: var(--muted);
}

.article-header .article-quick-nav {
  margin-top: 1.15rem;
}

.article-header .tag-list {
  margin-top: 0.9rem;
}

@media (max-width: 720px) {
  .article-header {
    margin-top: 0.85rem;
    padding: 1.1rem;
    border-radius: 16px;
  }

  .article-header h1 {
    font-size: clamp(1.75rem, 8.2vw, 2.35rem);
    line-height: 1.22;
  }

  .article-summary {
    font-size: 0.98rem;
    line-height: 1.7;
    padding-left: 0.8rem;
  }
}