.article-page {
  padding: calc(4rem + var(--spacing-xxl)) 0 var(--spacing-xxl);
  background: linear-gradient(180deg, #ffffff 0%, #f6f8fb 100%);
  min-height: 100vh;
}

.article-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto var(--spacing-xl);
}

.article-kicker {
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-color);
  margin-bottom: var(--spacing-sm);
}

.article-title {
  font-size: var(--text-5xl);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--spacing-sm);
}

.article-subtitle {
  color: var(--text-secondary);
  font-size: var(--text-lg);
}

.article-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.article-stats {
  margin: -0.25rem 0 var(--spacing-md);
  color: var(--text-secondary);
  font-size: var(--text-sm);
}

.search-box {
  flex: 1 1 320px;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.search-box i {
  width: 1rem;
  height: 1rem;
  color: var(--text-light);
}

.search-box input {
  border: 0;
  outline: 0;
  width: 100%;
  font-size: var(--text-base);
  color: var(--text-primary);
  background: transparent;
}

.category-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.draft-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  user-select: none;
}

.draft-toggle input {
  width: 1rem;
  height: 1rem;
}

.filter-chip {
  border: 1px solid var(--border-color);
  background: #fff;
  color: var(--text-secondary);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  cursor: pointer;
  font-size: var(--text-sm);
  transition: var(--transition-fast);
}

.filter-chip:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.filter-chip.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: #fff;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: var(--spacing-lg);
  align-items: start;
}

.article-list-panel {
  display: grid;
  gap: var(--spacing-md);
}

.article-list {
  display: grid;
  gap: var(--spacing-md);
}

.article-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-lg);
  transition: var(--transition-normal);
  cursor: pointer;
}

.article-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.article-card.active {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 1px rgba(0, 102, 255, 0.2), var(--shadow-md);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 0.65rem;
  color: var(--text-secondary);
  font-size: var(--text-xs);
}

.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.article-status {
  border-radius: 999px;
  padding: 0.15rem 0.45rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.article-status.published {
  background: #e8f8ee;
  color: #1f8a46;
}

.article-status.draft {
  background: #fff4e6;
  color: #b96b00;
}

.article-meta i {
  width: 0.85rem;
  height: 0.85rem;
}

.article-card h3 {
  font-size: var(--text-xl);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.article-card p {
  color: var(--text-secondary);
  line-height: 1.7;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.7rem;
}

.article-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  background: #f2f5fa;
  color: #4a5668;
  font-size: 0.75rem;
}

.article-card-actions,
.reader-actions {
  margin-top: var(--spacing-sm);
}

.article-read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.85rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border-color);
  background: #fff;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.82rem;
  transition: var(--transition-fast);
}

.article-read-more:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.article-pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  justify-content: flex-start;
}

.pager-btn {
  min-width: 2rem;
  height: 2rem;
  padding: 0 0.7rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border-color);
  background: #fff;
  color: var(--text-secondary);
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.pager-btn:hover:not(:disabled) {
  color: var(--text-primary);
  border-color: var(--primary-color);
}

.pager-btn.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: #fff;
}

.pager-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.article-reader {
  position: sticky;
  top: calc(4rem + var(--spacing-md));
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-xl);
  min-height: 420px;
}

.reader-placeholder {
  min-height: 360px;
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--text-secondary);
  gap: 0.75rem;
}

.reader-placeholder i {
  width: 1.4rem;
  height: 1.4rem;
}

.reader-head h2 {
  font-size: var(--text-2xl);
  line-height: 1.3;
  margin-bottom: var(--spacing-sm);
}

.reader-head .article-meta {
  margin-bottom: var(--spacing-md);
}

.article-highlight .article-status {
  margin-left: 0.15rem;
}

.reader-content {
  color: var(--text-secondary);
  line-height: 1.9;
  display: grid;
  gap: 0.75rem;
}

.article-highlight mark,
.reader-content mark,
.article-card h3 mark,
.article-card p mark {
  background: #fff0b8;
  color: inherit;
  padding: 0 0.12rem;
  border-radius: 0.15rem;
}

.article-empty {
  text-align: center;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.75);
}

.article-guide {
  padding: 0 0 var(--spacing-xxl);
  background: #f6f8fb;
}

.guide-card {
  max-width: 900px;
  margin: 0 auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.guide-card h2 {
  margin-bottom: var(--spacing-sm);
}

.guide-card p + p {
  margin-top: 0.5rem;
  color: var(--text-secondary);
}

@media (max-width: 980px) {
  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-reader {
    position: static;
  }
}

@media (max-width: 768px) {
  .article-title {
    font-size: var(--text-4xl);
  }

  .article-subtitle {
    font-size: var(--text-base);
  }

  .article-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .draft-toggle {
    justify-content: flex-start;
  }

  .search-box {
    flex-basis: auto;
  }
}