/* ─── Article template ─── */

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--grey);
  padding: 16px 0 0;
}
.breadcrumb a { color: var(--grey); text-decoration: none; }
.breadcrumb a:hover { color: var(--blue); text-decoration: underline; }
.breadcrumb-sep { font-size: 16px !important; color: var(--line); }
.breadcrumb [aria-current] { color: var(--ink); font-weight: 500; }

/* Hero */
.article-hero {
  padding: 28px 0 20px;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 32px;
}
.article-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--blue);
  background: var(--blue-tint);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.article-h1 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--ink);
  margin-bottom: 12px;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--grey);
}
.meta-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--line);
}

/* Layout: 3-column */
.article-layout {
  display: grid;
  grid-template-columns: 200px 1fr 220px;
  gap: 40px;
  align-items: start;
}

/* ─── Table of contents (left) ─── */
.article-toc {
  position: sticky;
  top: 80px;
}
.toc-inner {
  border-left: 2px solid var(--line-soft);
  padding-left: 16px;
}
.toc-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--grey);
  margin-bottom: 12px;
}
.toc-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.toc-link {
  display: block;
  font-size: 13px;
  color: var(--grey);
  text-decoration: none;
  line-height: 1.4;
  padding: 3px 0;
  border-left: 2px solid transparent;
  margin-left: -18px;
  padding-left: 16px;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.toc-link:hover { color: var(--ink); }
.toc-link.is-active {
  color: var(--blue);
  border-left-color: var(--blue);
  font-weight: 500;
}

/* ─── Article body (middle) ─── */
.article-body {
  min-width: 0;
}
.article-section {
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--line-soft);
}
.article-section:last-child {
  border-bottom: none;
}
.article-section h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin-top: 32px;
  margin-bottom: 12px;
  line-height: 1.3;
}
.article-section p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
  margin-bottom: 16px;
}
.article-section p:last-child {
  margin-bottom: 0;
}
.article-section ul,
.article-section ol {
  margin: 0 0 16px 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}
.article-section li { margin-bottom: 6px; }

/* ─── Sidebar (right) ─── */
.article-sidebar {
  position: sticky;
  top: 80px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.sidebar-card {
  background: var(--hover);
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  padding: 16px;
}
.sidebar-card-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--grey);
  margin-bottom: 10px;
}
.sidebar-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.sidebar-links li { margin-bottom: 8px; }
.sidebar-links li:last-child { margin-bottom: 0; }
.sidebar-links a {
  font-size: 13px;
  color: var(--ink);
  text-decoration: none;
  line-height: 1.4;
}
.sidebar-links a:hover { color: var(--blue); text-decoration: underline; }

/* ─── Footer ─── */
.site-foot {
  margin-top: 60px;
  padding: 20px 0;
  border-top: 1px solid var(--line-soft);
  font-size: 12px;
  color: var(--grey);
}
.site-foot-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.foot-right { color: var(--grey-2); }

/* ─── Ad slot (hidden) ─── */
.ad-slot { display: none !important; }

/* ─── Responsive ─── */
@media (max-width: 900px) {
  .article-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .article-toc {
    position: static;
  }
  .toc-inner { border-left: 2px solid var(--line-soft); padding-left: 16px; }
  .toc-list {
    flex-direction: column;
    gap: 6px;
  }
  .toc-link {
    border-left: 2px solid transparent;
    margin-left: -18px;
    padding-left: 16px;
    background: none;
    padding: 3px 0 3px 16px;
    border-radius: 0;
    font-size: 13px;
  }
  .toc-link.is-active {
    border-left-color: var(--blue);
    background: none;
    color: var(--blue);
  }
  .article-sidebar {
    position: static;
    flex-direction: row;
    overflow-x: auto;
  }
  .sidebar-card { min-width: 200px; }
}
@media (max-width: 600px) {
  .article-h1 { font-size: 24px; }
  .article-hero { padding: 20px 0 16px; }
}

/* Article page table override - even distribution, no sort */
.article-body .rows-head,
.article-body .pc-main {
  grid-template-columns: 1.5fr 0.7fr 0.6fr 0.8fr 0.7fr 0.8fr;
}
.article-body .rows-head .hcell {
  cursor: default;
}
.article-body .rows-head .h-ar {
  display: none;
}