.articles-hero {
  background: linear-gradient(135deg, #eef6f4 0%, #ffffff 58%, #f8f0df 100%);
}

.article-category-section,
.article-list-section {
  background: #fff;
}

.article-category-grid,
.article-list-grid,
.article-planning-grid {
  display: grid;
  gap: 18px;
}

.article-category-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.article-category-card,
.article-list-card,
.article-feature-card,
.article-planning-grid article {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(21, 33, 45, 0.06);
}

.article-category-card {
  display: grid;
  align-content: start;
  min-height: 230px;
  padding: 22px;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.article-category-card:hover,
.article-category-card:focus-visible {
  border-color: rgba(15, 118, 110, 0.42);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.article-category-card span,
.article-planning-grid span {
  display: block;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.article-category-card h3 {
  margin: 14px 0 10px;
  font-size: 1.15rem;
  line-height: 1.18;
}

.article-category-card p,
.article-feature-card p,
.article-list-card p,
.article-planning-grid p {
  color: var(--muted);
}

.article-category-card strong {
  display: block;
  margin-top: 16px;
  padding-top: 14px;
  color: var(--ink);
  border-top: 1px solid var(--line);
  font-size: 0.86rem;
  line-height: 1.36;
}

.article-hero-points,
.article-filter-nav,
.article-feature-actions,
.article-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.article-hero-points {
  margin-top: 22px;
}

.article-hero-points span {
  padding: 8px 11px;
  color: var(--brand-strong);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(15, 118, 110, 0.18);
  border-radius: 7px;
  font-size: 0.86rem;
  font-weight: 850;
}

.article-feature-section,
.article-planning-section {
  background: var(--soft);
}

.article-feature-card {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  overflow: hidden;
}

.article-feature-card img {
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: cover;
  border-right: 1px solid var(--line);
}

.article-feature-card div {
  display: grid;
  align-content: center;
  padding: clamp(28px, 5vw, 58px);
}

.article-feature-card h2 {
  margin: 8px 0 14px;
  font-size: clamp(1.8rem, 3vw, 3rem);
  line-height: 1.08;
}

.article-feature-checklist {
  display: grid;
  gap: 8px;
  margin: 20px 0 0;
  padding-left: 20px;
  color: var(--muted);
}

.article-feature-actions {
  margin-top: 22px;
}

.article-feature-actions .card-link {
  margin-top: 0;
}

.muted-link {
  color: var(--muted);
}

.article-filter-nav {
  margin: -10px 0 28px;
}

.article-filter-nav a {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  padding: 8px 12px;
  color: var(--brand-strong);
  background: #fff;
  border: 1px solid rgba(15, 118, 110, 0.22);
  border-radius: 7px;
  font-size: 0.9rem;
  font-weight: 850;
}

.article-filter-nav a:hover,
.article-filter-nav a:focus-visible {
  color: #fff;
  background: var(--brand);
  border-color: var(--brand);
}

.article-list-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.article-list-card {
  display: grid;
  grid-template-rows: auto 1fr;
  color: inherit;
  text-decoration: none;
  overflow: hidden;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.article-list-card:hover,
.article-list-card:focus-visible {
  border-color: rgba(15, 118, 110, 0.42);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.article-list-card img {
  width: 100%;
  aspect-ratio: 1.55 / 1;
  object-fit: cover;
  border-bottom: 1px solid var(--line);
}

.article-list-card div {
  padding: 22px;
}

.article-list-card > div {
  display: grid;
  align-content: start;
}

.article-list-card h3 {
  margin: 8px 0 10px;
  font-size: 1.16rem;
  line-height: 1.22;
}

.article-list-card .article-date,
.article-feature-card .article-date {
  margin: 0;
}

.article-card-actions {
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.article-card-actions span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.article-card-actions a {
  color: var(--brand-strong);
  font-size: 0.86rem;
  font-weight: 900;
}

.article-card-actions a:hover,
.article-card-actions a:focus-visible {
  color: var(--accent-dark);
}

.article-list-card p:last-child,
.article-category-card p,
.article-planning-grid p,
.article-feature-card p {
  margin-bottom: 0;
}

.article-stack {
  display: grid;
  gap: 28px;
}

.seo-article {
  padding: clamp(22px, 4vw, 44px);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(21, 33, 45, 0.06);
}

.seo-article h1,
.seo-article h2 {
  max-width: 920px;
  margin: 8px 0 20px;
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  line-height: 1.12;
}

.article-main-image {
  width: 100%;
  max-height: 430px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.article-body {
  display: grid;
  gap: 14px;
  max-width: 920px;
  margin-top: 24px;
  color: var(--muted);
}

.article-body p,
.article-body ul {
  margin: 0;
}

.article-body ul {
  display: grid;
  gap: 8px;
  padding-left: 20px;
}

.article-case-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.article-case-grid figure {
  margin: 0;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.article-case-grid img {
  width: 100%;
  aspect-ratio: 1.55 / 1;
  object-fit: cover;
  border-bottom: 1px solid var(--line);
}

.article-case-grid figcaption {
  padding: 14px 16px 16px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.article-planning-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.article-planning-grid article {
  padding: 24px;
}

.article-planning-grid p {
  margin-top: 10px;
}

@media (max-width: 1180px) {
  .article-category-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (max-width: 980px) {
  .article-feature-card,
  .article-list-grid,
  .article-case-grid {
    grid-template-columns: 1fr;
  }

  .article-feature-card img {
    min-height: 0;
    aspect-ratio: 1.55 / 1;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 900px) {
  .article-category-grid,
  .article-planning-grid {
    grid-template-columns: 1fr;
  }

  .article-category-card {
    min-height: 0;
  }
}

@media (max-width: 560px) {
  .article-filter-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .article-filter-nav a,
  .article-hero-points span {
    justify-content: center;
    text-align: center;
  }

  .article-card-actions {
    align-items: flex-start;
    flex-direction: column;
  }
}