.article-shell {
  gap: 22px;
}

.article-topbar {
  position: sticky;
  top: 18px;
  z-index: 20;
}

.article-nav {
  gap: 12px;
}

.article-page-main {
  display: grid;
  gap: 18px;
}

.article-list-hero,
.article-list-section,
.article-hero,
.article-summary,
.article-section,
.article-final-cta {
  padding: 28px;
  border-radius: 22px;
}

.article-list-hero h1,
.article-hero h1,
.article-section-head h2,
.article-final-cta h2 {
  margin: 10px 0 14px;
  color: var(--text-strong);
  font-size: clamp(2rem, 3.2vw, 3rem);
  line-height: 1.03;
  letter-spacing: -0.055em;
}

.article-section-head h2,
.article-final-cta h2 {
  font-size: clamp(1.5rem, 2.4vw, 2rem);
}

.article-hero-lead,
.article-hero-intro,
.article-list-hero p,
.article-summary p,
.article-section p,
.article-link-card span,
.article-card-body p {
  color: var(--muted);
  line-height: 1.72;
}

.article-list-grid,
.article-link-grid {
  display: grid;
  gap: 16px;
}

.article-list-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.article-card {
  display: grid;
  gap: 16px;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.article-card-media,
.article-card-body h2 a,
.article-card-link,
.article-link-card,
.feature-breadcrumbs a {
  color: inherit;
  text-decoration: none;
}

.article-card-media img,
.article-hero-media img {
  width: 100%;
  display: block;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.article-card-body {
  display: grid;
  gap: 10px;
}

.article-card-body h2 {
  margin: 0;
  font-size: 1.4rem;
  line-height: 1.18;
  letter-spacing: -0.04em;
}

.article-card-meta,
.article-meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--muted);
  font-size: 0.92rem;
}

.article-card-link {
  color: var(--brand);
  font-weight: 600;
}

.article-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(340px, 0.98fr);
  gap: 22px;
  align-items: start;
}

.article-hero-media {
  padding: 16px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
}

.article-summary {
  display: grid;
  gap: 10px;
}

.article-section {
  display: grid;
  gap: 16px;
}

.article-section-head {
  display: grid;
  gap: 6px;
}

.article-callout,
.article-link-card {
  padding: 18px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.article-callout strong,
.article-link-card strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text-strong);
  font-size: 1.03rem;
  letter-spacing: -0.03em;
}

.article-list,
.article-list-ordered {
  margin: 0;
  padding-left: 22px;
  display: grid;
  gap: 12px;
  color: var(--muted);
  line-height: 1.72;
}

.article-resource-group {
  display: grid;
  gap: 14px;
}

.article-resource-group h3 {
  margin: 0;
  color: var(--text-strong);
  font-size: 1.08rem;
  letter-spacing: -0.03em;
}

.article-link-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.article-link-card {
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.article-link-card:hover {
  border-color: rgba(83, 193, 129, 0.22);
  background: rgba(83, 193, 129, 0.08);
  transform: translateY(-2px);
}

.feature-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 0.92rem;
}

.feature-breadcrumbs a:hover {
  color: var(--text-strong);
}

.feature-breadcrumb-sep {
  opacity: 0.5;
}

.feature-check-list {
  margin-top: 22px;
}

.feature-footer {
  margin-top: 0;
}

html[data-theme="light"] .article-card,
html[data-theme="light"] .article-hero-media,
html[data-theme="light"] .article-callout,
html[data-theme="light"] .article-link-card {
  background: rgba(255, 255, 255, 0.9);
}

@media (max-width: 1100px) {
  .article-list-grid,
  .article-hero-grid,
  .article-link-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .article-topbar {
    position: static;
  }

  .article-list-hero,
  .article-list-section,
  .article-hero,
  .article-summary,
  .article-section,
  .article-final-cta {
    padding: 22px;
    border-radius: 18px;
  }

  .article-card-body h2 {
    font-size: 1.22rem;
  }
}