/* ===== 博客：列表页 + 文章页 ===== */

.hero-sm { padding: 64px 0 76px; }
.hero-sm h1 { font-size: 38px; margin-bottom: 14px; }
.hero-sm .sub { font-size: 17px; margin-bottom: 0; }

/* 列表 */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.post-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: all .25s;
}
.post-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(31, 42, 61, 0.08);
  border-color: #d5dae4;
}
.post-card a { display: block; padding: 32px; }
.post-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.post-tag.c1 { background: #eaf1f8; color: #2a5580; }
.post-tag.c2 { background: #f5eee2; color: #8a6634; }
.post-tag.c3 { background: #edf2ea; color: #46653c; }
.post-tag.c4 { background: #f7ebee; color: #8f4152; }

.post-card h2 {
  font-size: 21px;
  line-height: 1.5;
  color: var(--ink);
  margin-bottom: 12px;
}
.post-card:hover h2 { color: var(--accent-deep); }
.post-card p {
  font-size: 14.5px;
  color: var(--muted);
  margin-bottom: 18px;
}
.post-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 13px;
  color: #a3a9b6;
}

/* 文章头 */
.article-hero {
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  padding: 44px 0 46px;
}
.breadcrumb {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 22px;
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent-deep); }
.article-hero h1 {
  font-size: 36px;
  line-height: 1.4;
  color: var(--ink);
  max-width: 840px;
  margin-bottom: 20px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  font-size: 13.5px;
  color: var(--muted);
}

/* 正文布局 */
.article-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 56px;
  padding-top: 56px;
  padding-bottom: 72px;
  align-items: start;
}
.article-body { max-width: 720px; }
.article-body p {
  font-size: 16.5px;
  line-height: 1.95;
  color: var(--text);
  margin-bottom: 22px;
}
.article-body h2 {
  font-size: 23px;
  color: var(--ink);
  margin: 44px 0 18px;
  padding-left: 14px;
  border-left: 3px solid var(--accent);
  line-height: 1.5;
}
.article-body h3 {
  font-size: 18px;
  color: var(--ink);
  margin: 30px 0 12px;
}
.article-body strong { color: var(--ink); font-weight: 600; }
.article-body ul, .article-body ol {
  margin: 0 0 24px 4px;
  padding-left: 22px;
}
.article-body ul li, .article-body ol li {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
  margin-bottom: 10px;
  list-style: disc;
}
.article-body ol li { list-style: decimal; }
.article-body a { color: var(--accent-deep); text-decoration: underline; }
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 8px 0 26px;
  font-size: 14.5px;
}
.article-body th, .article-body td {
  border: 1px solid var(--line);
  padding: 11px 14px;
  text-align: left;
  color: var(--text);
}
.article-body th {
  background: #f3f4f7;
  color: var(--ink);
  font-weight: 600;
  white-space: nowrap;
}
.article-body tr:nth-child(even) td { background: #fafbfc; }

/* 侧栏 */
.article-aside { position: sticky; top: 92px; display: grid; gap: 18px; }
.aside-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}
.aside-card h3 {
  font-size: 16px;
  color: var(--ink);
  margin-bottom: 10px;
}
.aside-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 16px;
}
.aside-links li { margin-bottom: 10px; }
.aside-links a {
  font-size: 14px;
  color: var(--text);
  line-height: 1.7;
}
.aside-links a:hover { color: var(--accent-deep); }
.btn-sm { padding: 10px 22px; font-size: 14px; }
.tel-link { color: var(--accent-deep); font-weight: 700; }

@media (max-width: 900px) {
  .blog-grid { grid-template-columns: 1fr; }
  .article-wrap { grid-template-columns: 1fr; gap: 32px; padding-top: 40px; }
  .article-aside { position: static; }
  .article-hero h1 { font-size: 26px; }
  .hero-sm h1 { font-size: 27px; }
  .article-body p, .article-body ul li { font-size: 16px; }
}