.doc-shell {
  /* 与 .header-inner 同宽，长 CTA 与列表在桌面端更易单行展示 */
  max-width: 72rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

.doc-article-head h1 {
  margin: 0.35rem 0 1rem;
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  line-height: 1.2;
  color: var(--heading);
}

.doc-article-meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.doc-article-body h2 {
  margin: 2rem 0 0.75rem;
  font-size: 1.35rem;
  color: var(--heading);
}

.doc-article-body h3 {
  margin: 1.5rem 0 0.5rem;
  font-size: 1.1rem;
}

.doc-article-body p,
.doc-article-body li {
  color: var(--soft);
}

.doc-article-body a {
  color: var(--accent-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.doc-breadcrumb {
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
}

.doc-breadcrumb a {
  color: var(--accent-2);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.doc-article-foot {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.95rem;
  color: var(--muted);
}

.doc-cta-line {
  margin: 0 0 1rem;
  color: var(--soft);
  line-height: 1.7;
}

.doc-cta-line a {
  color: var(--accent-2);
  font-weight: 700;
}

.doc-footer-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 0.35rem;
  line-height: 1.6;
}

.doc-footer-nav a {
  color: var(--accent-2);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-size: 0.88rem;
}

.doc-footer-sep {
  color: var(--muted);
  user-select: none;
}

.doc-index-foot {
  margin-top: 2rem;
}

.doc-index h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.85rem, 4vw, 2.5rem);
}

.doc-index-lead {
  color: var(--muted);
  margin: 0 0 1.75rem;
}

.doc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.doc-list a {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.35rem 1rem;
  padding: 1rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--panel-strong);
  box-shadow: var(--shadow-soft);
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.doc-list-count {
  color: var(--muted);
  font-size: 0.9rem;
}

.doc-pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  margin: 1.75rem 0 0;
}

.doc-pagination-meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.doc-pagination a {
  color: var(--accent-2);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.doc-back-hub {
  margin: 1.25rem 0 0;
  font-size: 0.95rem;
}

.doc-back-hub a {
  color: var(--accent-2);
}

.doc-list a:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.doc-list-title {
  font-weight: 700;
  color: var(--heading);
}

.doc-list time {
  font-size: 0.85rem;
  color: var(--muted);
}

.doc-list-empty {
  padding: 1rem;
  color: var(--muted);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  max-width: 72rem;
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
}

.header-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  flex: 1;
}

.header-cta {
  white-space: nowrap;
}

@media (max-width: 640px) {
  .header-nav { width: 100%; }
}