/* ===== 文章页样式 ===== */

.article-main {
  padding-top: 80px;
  min-height: 100vh;
}

.article-container {
  max-width: 720px;
  padding: 3rem 1.5rem 5rem;
}

.article-meta-top {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.article-tag {
  display: inline-block;
  background: var(--accent, #4f6ef7);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  letter-spacing: 0.02em;
}

.article-date {
  font-size: 0.85rem;
  color: var(--text-muted, #888);
}

.article-title {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary, #1a1a2e);
  margin: 0 0 1rem;
}

.article-lead {
  font-size: 1.05rem;
  color: var(--text-secondary, #555);
  line-height: 1.7;
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border, #e8e8ee);
}

/* ---- 文章正文 ---- */
.article-body {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-primary, #1a1a2e);
}

.article-body p {
  margin: 0 0 1.4rem;
}

.article-body h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  color: var(--text-primary, #1a1a2e);
}

.article-body strong {
  font-weight: 700;
  color: var(--text-primary, #1a1a2e);
}

.article-body blockquote {
  border-left: 3px solid var(--accent, #4f6ef7);
  margin: 1.5rem 0;
  padding: 0.5rem 0 0.5rem 1.2rem;
  color: var(--text-secondary, #555);
  font-style: italic;
}

/* ---- 底部返回 ---- */
.article-footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border, #e8e8ee);
}

.back-link {
  font-size: 0.9rem;
  color: var(--accent, #4f6ef7);
  text-decoration: none;
  font-weight: 600;
}

.back-link:hover {
  text-decoration: underline;
}

/* ---- 页脚 ---- */
.site-footer-bar {
  background: var(--surface, #f7f7fb);
  border-top: 1px solid var(--border, #e8e8ee);
  padding: 1.5rem 0;
  text-align: center;
}

.site-footer-bar p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted, #888);
}