/* ================================================================
   博客文章样式
   ================================================================ */

/* ---- 博客按钮闪动动画 ---- */
@keyframes blogPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.5); }
  50%      { box-shadow: 0 0 0 10px rgba(37, 99, 235, 0); }
}
@keyframes blogGlow {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

.btn-blog {
  position: relative;
  background: linear-gradient(135deg, #2563eb, #7c3aed, #db2777, #2563eb);
  background-size: 300% 300%;
  color: #fff !important;
  border: none !important;
  font-weight: 700 !important;
  padding: 6px 18px !important;
  border-radius: 20px !important;
  animation: blogPulse 2s ease-in-out infinite, blogGlow 4s linear infinite;
  transition: transform 0.2s ease;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.35);
}
.btn-blog:hover {
  transform: scale(1.08);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.5);
  animation: none;
}
.btn-blog:active { transform: scale(0.97); }

/* ---- Blog Container ---- */
.blog-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px;
}

/* ---- Blog Tabs ---- */
.blog-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--color-border);
}
.blog-tab {
  padding: 10px 24px;
  font-size: .95rem;
  font-weight: 600;
  border: none;
  background: none;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: var(--transition);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
}
.blog-tab:hover { color: var(--color-primary); }
.blog-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ---- Article List ---- */
.article-list-header {
  margin-bottom: 28px;
}
.article-list-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.article-list-desc {
  font-size: .9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}

.article-card {
  display: block;
  padding: 20px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--color-text);
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.article-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.article-card .card-id {
  display: inline-block;
  font-size: .73rem;
  font-weight: 600;
  color: #fff;
  background: var(--color-primary);
  padding: 2px 10px;
  border-radius: 12px;
  margin-bottom: 8px;
}
.article-card .card-id.part-b { background: var(--color-soft); }

.article-card .card-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.4;
}
.article-card .card-desc {
  font-size: .82rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---- Article Detail ---- */
.article-detail {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 32px 36px;
  box-shadow: var(--shadow-md);
}

.article-back {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--color-primary);
  font-size: .85rem;
  cursor: pointer;
  margin-bottom: 20px;
  font-weight: 500;
  text-decoration: none;
}
.article-back:hover { text-decoration: underline; }

.article-meta {
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--color-border);
}
.article-meta .meta-tag {
  display: inline-block;
  font-size: .73rem;
  font-weight: 600;
  padding: 2px 12px;
  border-radius: 12px;
  margin-bottom: 8px;
}
.article-meta h1 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.4;
}

/* ---- Rendered Markdown Content ---- */
.markdown-body {
  line-height: 1.85;
  font-size: .95rem;
  color: var(--color-text);
}

.markdown-body h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 28px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}
.markdown-body h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 24px 0 12px;
  color: var(--color-text);
}
.markdown-body h3 {
  font-size: 1.08rem;
  font-weight: 600;
  margin: 20px 0 10px;
}
.markdown-body h4 {
  font-size: .98rem;
  font-weight: 600;
  margin: 16px 0 8px;
}

.markdown-body p {
  margin-bottom: 14px;
}

.markdown-body blockquote {
  margin: 16px 0;
  padding: 12px 20px;
  border-left: 4px solid var(--color-primary);
  background: var(--color-primary-bg);
  border-radius: 0 6px 6px 0;
  color: #334155;
  font-size: .9rem;
}
.markdown-body blockquote p { margin-bottom: 6px; }
.markdown-body blockquote p:last-child { margin-bottom: 0; }

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: .85rem;
}
.markdown-body th {
  background: #f1f5f9;
  padding: 8px 12px;
  text-align: left;
  font-weight: 600;
  border: 1px solid var(--color-border);
}
.markdown-body td {
  padding: 7px 12px;
  border: 1px solid var(--color-border);
  vertical-align: top;
}
.markdown-body tr:nth-child(even) td { background: #fafbfc; }

.markdown-body pre {
  background: #1e293b;
  color: #e2e8f0;
  padding: 16px 20px;
  border-radius: 8px;
  overflow-x: auto;
  font-size: .83rem;
  line-height: 1.6;
  margin: 14px 0;
}
.markdown-body code {
  font-family: var(--font-mono);
  font-size: .85em;
  background: #f1f5f9;
  padding: 2px 6px;
  border-radius: 4px;
}
.markdown-body pre code {
  background: none;
  padding: 0;
  font-size: inherit;
}

.markdown-body ul, .markdown-body ol {
  padding-left: 24px;
  margin-bottom: 14px;
}
.markdown-body li {
  margin-bottom: 6px;
}

.markdown-body hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 24px 0;
}

.markdown-body img {
  max-width: 100%;
  border-radius: 6px;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .article-grid { grid-template-columns: 1fr; }
  .article-detail { padding: 20px 16px; }
  .blog-container { padding: 16px; }
  .blog-tabs { gap: 0; }
  .blog-tab { padding: 8px 16px; font-size: .85rem; }
}