.sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.widget {
  background: var(--card-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.04), 0 1px 10px rgba(0, 0, 0, 0.06);
  will-change: transform, box-shadow;
}

.widget:hover {
  box-shadow:
    0 8px 25px rgba(0, 0, 0, 0.12),
    0 4px 12px rgba(0, 0, 0, 0.08);
  border-color: var(--primary-400);
}

.widget-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
  position: relative;
  padding-bottom: var(--space-2);
}

.widget-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background: linear-gradient(to right, var(--primary-400), var(--primary-600));
  border-radius: var(--radius-sm);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.widget:hover .widget-title::after {
  transform: scaleX(1);
}

.about-content {
  text-align: center;
}

.avatar-container {
  position: relative;
  display: inline-block;
  margin-bottom: var(--space-1);
}

.avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--primary-200);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.avatar-container:hover .avatar {
  transform: scale(1.05);
  border-color: var(--primary-400);
  box-shadow:
    0 8px 16px rgba(236, 72, 153, 0.2),
    0 0 0 4px rgba(236, 72, 153, 0.1);
}

.author-name {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.author-bio {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.social-links {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  background: var(--surface-color);
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-normal);
}

.social-link:hover {
  background: var(--primary-500);
  color: white;
  transform: translateY(-2px);
}

.social-link.github:hover {
  background: #333;
}

.social-link.bilibili:hover {
  background: #ff6699;
}

.social-link.email:hover {
  background: #ea4335;
}

/* 推荐阅读（无缩略图版） */
.recommend-item { display: flex; gap: var(--space-3); padding: var(--space-3); border-radius: var(--radius-lg); transition: all var(--transition-fast); cursor: var(--cursor-pointer); }
.recommend-item:hover { background: var(--surface-color); }
.recommend-content { flex: 1; min-width: 0; }
.recommend-title { font-size: var(--font-size-sm); font-weight: 500; margin-bottom: var(--space-1); }
.recommend-title a { color: var(--text-primary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; line-height: 1.4; }
.recommend-title a:hover { color: var(--primary-600); }
.recommend-meta { display: flex; align-items: center; gap: var(--space-2); font-size: 12px; color: var(--text-secondary); }

.recommend-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.recommend-item {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  cursor: var(--cursor-pointer);
}

.recommend-item:hover {
  background: var(--surface-color);
}

.recommend-content {
  flex: 1;
  min-width: 0;
}

.recommend-title {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: var(--space-1);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-clamp: 2;
}

.recommend-date {
  font-size: 12px;
  color: var(--text-secondary);
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag {
  background: var(--surface-color);
  color: var(--text-secondary);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: var(--cursor-pointer);
  position: relative;
  overflow: hidden;
}

.tag::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.tag:hover {
  background: var(--primary-500);
  color: white;
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 4px 12px rgba(236, 72, 153, 0.3);
}

.tag:hover::before {
  left: 100%;
}

.categories-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.category-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  text-decoration: none;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.category-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background: var(--surface-color);
  transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: -1;
}

.category-item:hover {
  color: var(--primary-600);
}

.category-item:hover::before {
  width: 100%;
}

.category-count {
  background: var(--primary-100);
  color: var(--primary-700);
  padding: var(--space-1) var(--space-2);
  margin-left: var(--space-2);
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 500;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.category-item:hover .category-count {
  background: var(--primary-500);
  color: white;
  transform: scale(1.1);
}

.recent-comments {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.comment-item {
  padding: var(--space-3);
  border-left: 3px solid var(--primary-400);
  background: var(--surface-color);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.comment-author {
  font-weight: 500;
  color: var(--primary-600);
  margin-bottom: var(--space-1);
}

.comment-content {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: var(--space-1);
}

.comment-post {
  font-size: 12px;
  color: var(--text-secondary);
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-top: var(--space-12);
  padding: var(--space-6) 0;
}

.page-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border-color);
  background: var(--card-color);
  color: var(--text-primary);
  border-radius: var(--radius-lg);
  cursor: var(--cursor-pointer);
  transition: all var(--transition-fast);
  font-weight: 500;
}

.page-btn:hover:not(:disabled) {
  background: var(--primary-500);
  color: white;
  border-color: var(--primary-500);
}

.page-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.page-numbers {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.page-number {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  cursor: var(--cursor-pointer);
  transition: all var(--transition-fast);
  font-weight: 500;
}

.page-number:hover {
  background: var(--surface-color);
}

.page-number.active {
  background: var(--primary-500);
  color: white;
}

.page-dots {
  color: var(--text-secondary);
  padding: 0 var(--space-2);
}

.fab-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-3);
}

.fab {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: var(--cursor-pointer);
  border: none;
  color: white;
  border-radius: var(--radius-lg);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  box-shadow:
    0 4px 12px rgba(0, 0, 0, 0.15),
    0 2px 4px rgba(0, 0, 0, 0.12);
}

.fab:hover {
  box-shadow:
    0 8px 20px rgba(0, 0, 0, 0.2),
    0 4px 8px rgba(0, 0, 0, 0.15);
}

.back-to-top {
  background: var(--primary-500);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.8);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  order: -1;
}

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

.back-to-top:hover {
  background: var(--primary-600);
  transform: translateY(-2px) scale(1.05);
  box-shadow:
    0 8px 16px rgba(236, 72, 153, 0.3),
    0 4px 8px rgba(236, 72, 153, 0.2);
}

.main-fab {
  background: var(--primary-500);
  z-index: 2;
}

.main-fab:hover {
  background: var(--primary-600);
}

.fab-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  opacity: 0;
  transform: translateX(20px) scale(0.8);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
  position: absolute;
  right: calc(100% + var(--space-3));
  bottom: 0;
}

.fab-container.active .fab-actions {
  opacity: 1;
  transform: translateX(0) scale(1);
  pointer-events: all;
}

.action-fab {
  background: var(--card-color);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.action-fab:hover {
  background: var(--primary-500);
  color: white;
  border-color: var(--primary-500);
  transform: translateY(-2px) scale(1.05);
  box-shadow:
    0 8px 16px rgba(236, 72, 153, 0.3),
    0 4px 8px rgba(236, 72, 153, 0.2);
}

.main-fab .material-icons {
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.fab-container.active .main-fab .material-icons {
  transform: rotate(45deg);
}

/* 废弃：原全宽顶栏下拉搜索容器，已被 layout.css 中的新弹出搜索面板取代 */
/* 移除临时 search-container-legacy 回滚 */
/* 其余 input / button 样式仍被新搜索面板复用，无需修改 */

.search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  z-index: 1400;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.dark-theme .category-item:hover .category-count, .dark-theme .category-hover .category-count { background: var(--primary-200) !important; color: var(--primary-800) !important; }
.dark-theme .tag-item { background: rgba(236, 72, 153, 0.2) !important; color: var(--primary-300) !important; }
.dark-theme .tag-item:hover { background: var(--primary-500) !important; color: #fff !important; }