/**
 * 部落格文章共用版型（所有 blog/*.html 共用）。
 * 色彩一律引用 tokens.css 變數；共用 nav/footer 樣式在 site.css。
 */


/* Article Hero */
.article-hero {
  max-width: 720px; margin: 0 auto;
  padding: 120px 24px 40px;
}
.article-category {
  font-size: 0.8125rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.03em; margin-bottom: 16px;
}
.article-hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 700;
  line-height: 1.3; letter-spacing: -0.02em;
  color: var(--color-ink-primary); margin-bottom: 20px;
}
.article-meta {
  display: flex; gap: 16px; align-items: center;
  font-size: 0.8125rem; color: var(--color-ink-tertiary);
  padding-bottom: 32px; border-bottom: 1px solid var(--color-border-subtle);
}

/* Category Colors */
.cat-ai-chat { color: var(--color-category-chat); }
.cat-ai-art { color: var(--color-category-art); }
.cat-dev-tool { color: var(--color-category-dev); }
.cat-productivity { color: var(--color-category-productivity); }
.cat-comparison { color: var(--color-category-comparison); }
.cat-music { color: var(--color-category-music); }
.cat-writing { color: var(--color-category-writing); }
.cat-ai-video { color: var(--color-category-video); }
.cat-ai-trend { color: var(--color-category-trend); }

/* Article Content */
.article-content {
  max-width: 720px; margin: 0 auto; padding: 40px 24px 40px;
  font-size: 1.0625rem; line-height: 1.9; color: var(--color-ink-primary);
}
.article-content h2 {
  font-size: 1.5rem; font-weight: 700; color: var(--color-ink-primary);
  margin: 48px 0 16px; letter-spacing: -0.01em;
}
.article-content h3 {
  font-size: 1.1875rem; font-weight: 600; color: var(--color-ink-primary);
  margin: 32px 0 12px;
}
.article-content p { margin-bottom: 20px; }
.article-content ul, .article-content ol { margin: 16px 0 20px 24px; }
.article-content li { margin-bottom: 8px; }
.article-content a { color: var(--color-brand-link); text-decoration: none; }
.article-content a:hover { text-decoration: underline; }
.article-content blockquote {
  border-left: 3px solid var(--color-ink-tertiary);
  padding: 12px 24px; margin: 24px 0;
  background: var(--color-surface-subtle); border-radius: 0 8px 8px 0;
  color: var(--color-ink-secondary);
}
.article-content code {
  background: var(--color-surface-subtle); padding: 2px 8px;
  border-radius: 4px; font-size: 0.9em;
}
.article-content .highlight-box {
  background: var(--color-surface-subtle); border-radius: 12px;
  padding: 24px; margin: 24px 0;
}
.article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 0.95rem; }
.article-content th { background: var(--color-surface-subtle); color: var(--color-ink-primary); padding: 12px 16px; text-align: left; font-weight: 600; border-bottom: 2px solid var(--color-border-subtle); }
.article-content th:first-child { border-radius: 8px 0 0 0; }
.article-content th:last-child { border-radius: 0 8px 0 0; }
.article-content td { padding: 12px 16px; border-bottom: 1px solid var(--color-border-subtle); }
.article-content tr:hover td { background: var(--color-surface-subtle); }

/* Related */
.related-section {
  max-width: 720px; margin: 0 auto; padding: 0 24px 32px;
  border-top: 1px solid var(--color-border-subtle); padding-top: 32px;
}
.related-section h3 {
  font-size: 0.8125rem; font-weight: 600; color: var(--color-ink-tertiary);
  text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 20px;
}
.related-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px;
}
.related-item {
  display: block; text-decoration: none; padding: 16px 0;
  border-bottom: 1px solid var(--color-border-subtle); transition: opacity 0.2s;
}
.related-item:hover { opacity: 0.6; }
.related-item .related-cat {
  font-size: 0.6875rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.03em; margin-bottom: 4px;
}
.related-item .related-title {
  font-size: 0.9375rem; font-weight: 600; color: var(--color-ink-primary); line-height: 1.4;
}
.back-link {
  max-width: 720px; margin: 0 auto; padding: 0 24px 48px;
}
.back-link a {
  color: var(--color-brand-link); text-decoration: none;
  font-size: 0.9375rem; font-weight: 500;
}
.back-link a:hover { text-decoration: underline; }

@media (max-width: 768px) {
  .article-hero { padding: 88px 20px 32px; }
  .article-hero h1 { font-size: 1.5rem; }
  .article-content { padding: 32px 20px 32px; }
  .article-content table { font-size: 0.8rem; }
  .article-content th, .article-content td { padding: 8px 10px; }
}