/* 增强组件样式 */

/* 搜索结果样式 */
.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-height: 400px;
  overflow-y: auto;
  z-index: 1000;
  margin-top: var(--space-xs);
}

.search-result-item {
  padding: var(--space-md);
  border-bottom: 1px solid var(--border);
  transition: var(--transition-fast);
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item:hover {
  background: var(--border-light);
}

.search-result-title {
  display: block;
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  transition: var(--transition-fast);
}

.search-result-title:hover {
  color: var(--primary-light);
}

.search-result-excerpt {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin: 0;
  line-height: 1.5;
}

.search-no-results {
  padding: var(--space-lg);
  text-align: center;
  color: var(--text-muted);
  font-style: italic;
}

/* 文章目录样式 */
.table-of-contents {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-sm);
}

.table-of-contents h4 {
  margin: 0 0 var(--space-md) 0;
  color: var(--text-primary);
  font-size: 1.125rem;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.table-of-contents h4::before {
  content: '📋';
  font-size: 1rem;
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc-item {
  margin-bottom: var(--space-xs);
}

.toc-link {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
  font-size: 0.9rem;
  line-height: 1.4;
}

.toc-link:hover {
  background: var(--border-light);
  color: var(--primary);
  transform: translateX(4px);
}

.toc-h1 { margin-left: 0; }
.toc-h2 { margin-left: var(--space-md); }
.toc-h3 { margin-left: var(--space-xl); }
.toc-h4 { margin-left: calc(var(--space-xl) + var(--space-md)); }
.toc-h5 { margin-left: calc(var(--space-xl) * 2); }
.toc-h6 { margin-left: calc(var(--space-xl) * 2 + var(--space-md)); }

/* 代码语言标签 */
.code-language-label {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background: var(--primary);
  color: white;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  z-index: 2;
}

/* 加载动画 */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-radius: 50%;
  border-top-color: var(--primary);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* 淡入动画 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.post-card {
  animation: fadeInUp 0.6s ease-out;
}

.post-card:nth-child(1) { animation-delay: 0.1s; }
.post-card:nth-child(2) { animation-delay: 0.2s; }
.post-card:nth-child(3) { animation-delay: 0.3s; }
.post-card:nth-child(4) { animation-delay: 0.4s; }
.post-card:nth-child(5) { animation-delay: 0.5s; }

/* 图片懒加载样式 */
img.lazy {
  opacity: 0;
  transition: opacity 0.3s;
}

img.lazy.loaded {
  opacity: 1;
}

/* 响应式图片 */
.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
}

.post-content img:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}

/* 搜索框移到顶部导航栏的样式 */
.search-container {
  position: relative;
  max-width: 250px;
  flex-shrink: 0;
  order: 1;
}

.search-input {
  width: 100%;
  padding: 8px 40px 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  background: var(--surface);
  color: var(--text-primary);
  font-size: 14px;
  transition: var(--transition-normal);
}

.search-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.search-input::placeholder {
  color: var(--text-muted);
}

/* 改进回到顶部按钮样式 */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-normal);
  z-index: 1000;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.back-to-top:active {
  transform: translateY(0);
}

/* 暗色主题下的回到顶部按钮 */
.dark-theme .back-to-top {
  background: var(--primary);
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.3), 0 4px 6px rgba(0, 0, 0, 0.2);
}

.dark-theme .back-to-top:hover {
  background: var(--primary-light);
  box-shadow: 0 20px 25px rgba(0, 0, 0, 0.4), 0 10px 10px rgba(0, 0, 0, 0.3);
}

/* 响应式设计优化 */
@media (max-width: 768px) {
  .search-container {
    max-width: 200px;
    margin-top: 10px;
    order: 2;
    width: 100%;
  }
  
  .theme-toggle {
    order: 3;
  }
  
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    font-size: 18px;
  }
}

/* 标签页面样式 */
.tags-container {
  margin-top: 2rem;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.tag-cloud-item {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 1rem;
  background: var(--border-light);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  font-size: 0.9rem;
  transition: all var(--transition-normal);
  position: relative;
}

.tag-cloud-item:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.tag-name {
  font-weight: 500;
}

.tag-count {
  font-size: 0.8rem;
  opacity: 0.8;
  font-weight: 400;
}

.tag-cloud-item:hover .tag-count {
  opacity: 1;
}

/* 根据文章数量调整标签大小 */
.tag-cloud-item[data-count="1"] {
  font-size: 0.85rem;
  padding: 0.4rem 0.8rem;
}

.tag-cloud-item[data-count="2"],
.tag-cloud-item[data-count="3"] {
  font-size: 0.9rem;
  padding: 0.45rem 0.9rem;
}

.tag-cloud-item[data-count="4"],
.tag-cloud-item[data-count="5"] {
  font-size: 0.95rem;
  padding: 0.5rem 1rem;
}

.tag-cloud-item[data-count^="6"],
.tag-cloud-item[data-count^="7"],
.tag-cloud-item[data-count^="8"],
.tag-cloud-item[data-count^="9"] {
  font-size: 1rem;
  padding: 0.55rem 1.1rem;
  font-weight: 600;
}

.tag-cloud-item[data-count^="1"][data-count$="0"],
.tag-cloud-item[data-count^="1"][data-count$="1"],
.tag-cloud-item[data-count^="1"][data-count$="2"],
.tag-cloud-item[data-count^="1"][data-count$="3"],
.tag-cloud-item[data-count^="1"][data-count$="4"],
.tag-cloud-item[data-count^="1"][data-count$="5"] {
  font-size: 1.1rem;
  padding: 0.6rem 1.2rem;
  font-weight: 700;
}

.no-tags {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
  font-style: italic;
}

/* 标签统计样式 */
.tags-stats {
  margin-top: 3rem;
  padding: 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.tags-stats h3 {
  margin: 0 0 1.5rem 0;
  color: var(--text-primary);
  font-size: 1.25rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.5rem;
}

.stat-item {
  text-align: center;
  padding: 1rem;
  background: var(--border-light);
  border-radius: var(--radius-md);
  transition: var(--transition-normal);
}

.stat-item:hover {
  background: var(--border);
  transform: translateY(-2px);
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  display: block;
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.stat-detail {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .tag-cloud {
    gap: 0.5rem;
  }
  
  .tag-cloud-item {
    font-size: 0.85rem !important;
    padding: 0.4rem 0.8rem !important;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .stat-number {
    font-size: 1.5rem;
  }
}

/* 引用块美化 */
.post-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--border-light);
  margin: var(--space-lg) 0;
  padding: var(--space-lg);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  position: relative;
}

.post-content blockquote::before {
  content: '"';
  font-size: 4rem;
  color: var(--primary);
  position: absolute;
  top: -10px;
  left: var(--space-md);
  opacity: 0.3;
  font-family: Georgia, serif;
}

.post-content blockquote p {
  margin: 0;
  font-style: italic;
  color: var(--text-secondary);
}

/* 表格美化 */
.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-lg) 0;
  background: var(--surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.post-content th,
.post-content td {
  padding: var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.post-content th {
  background: var(--primary);
  color: white;
  font-weight: 600;
}

.post-content tr:hover {
  background: var(--border-light);
}

/* 列表美化 */
.post-content ul,
.post-content ol {
  padding-left: var(--space-xl);
  margin: var(--space-lg) 0;
}

.post-content li {
  margin-bottom: var(--space-sm);
  line-height: 1.6;
}

.post-content ul li::marker {
  color: var(--primary);
}

.post-content ol li::marker {
  color: var(--primary);
  font-weight: 600;
}

/* 分隔线美化 */
.post-content hr {
  border: none;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  margin: var(--space-2xl) 0;
}

/* 内联代码美化 */
.post-content code:not([class*="language-"]) {
  background: var(--border-light);
  color: var(--primary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: 0.875em;
  font-weight: 600;
}

/* 标题锚点样式 */
.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4,
.post-content h5,
.post-content h6 {
  position: relative;
  scroll-margin-top: 100px;
}

.post-content h1:hover::before,
.post-content h2:hover::before,
.post-content h3:hover::before,
.post-content h4:hover::before,
.post-content h5:hover::before,
.post-content h6:hover::before {
  content: '#';
  position: absolute;
  left: -1.5rem;
  color: var(--primary);
  opacity: 0.7;
  font-weight: normal;
}

/* 社交分享按钮 */
.social-share {
  display: flex;
  gap: var(--space-sm);
  margin: var(--space-xl) 0;
  padding: var(--space-lg);
  background: var(--border-light);
  border-radius: var(--radius-lg);
  align-items: center;
}

.social-share-label {
  color: var(--text-secondary);
  font-weight: 600;
  margin-right: var(--space-md);
}

.social-share-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  text-decoration: none;
  color: white;
  transition: var(--transition-normal);
}

.social-share-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.social-share-btn.twitter { background: #1da1f2; }
.social-share-btn.facebook { background: #4267b2; }
.social-share-btn.linkedin { background: #0077b5; }
.social-share-btn.weibo { background: #e6162d; }

/* 响应式优化 */
@media (max-width: 768px) {
  .table-of-contents {
    padding: var(--space-md);
  }
  
  .toc-h2 { margin-left: var(--space-sm); }
  .toc-h3 { margin-left: var(--space-md); }
  .toc-h4 { margin-left: var(--space-lg); }
  .toc-h5 { margin-left: var(--space-xl); }
  .toc-h6 { margin-left: calc(var(--space-xl) + var(--space-sm)); }
  
  .social-share {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .social-share-label {
    width: 100%;
    text-align: center;
    margin-bottom: var(--space-sm);
    margin-right: 0;
  }
}