/**
 * 云问答模块样式
 */

/* 列表页样式 */
.qa-list-page {
  padding: 40px 0 80px;
  min-height: 60vh;
}

.qa-layout {
  display: grid;
  grid-template-columns: 180px 1fr 320px;
  gap: 30px;
}

/* 左侧分类导航 */
.qa-sidebar {
  position: sticky;
  top: 100px;
  height: fit-content;
  max-height: calc(100vh - 140px);
  overflow-y: auto;
}

.qa-sidebar::-webkit-scrollbar {
  width: 4px;
}

.qa-sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.qa-sidebar::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 2px;
}

.qa-sidebar::-webkit-scrollbar-thumb:hover {
  background: var(--primary-light);
}

.category-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
}

.category-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 6px;
  transition: all 0.18s ease;
}

.category-item:hover {
  color: var(--primary-light);
  background: rgba(59, 130, 246, 0.06);
}

.category-item.active {
  color: var(--primary-light);
  background: var(--primary-color);
  color: white;
  font-weight: 500;
}

.category-item .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #ddd;
  flex-shrink: 0;
}

.category-item.active .dot,
.category-item:hover .dot {
  background: var(--primary-color);
}

.category-item.active .dot {
  background: white;
}

/* 中间主内容 */
.qa-main {
  min-height: 400px;
}

.qa-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 24px;
}

/* 问答列表 */
.qa-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.qa-item {
  display: block;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.qa-item:hover {
  border-color: var(--primary-color);
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.08);
}

.qa-item-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.qa-cat {
  font-size: 12px;
  color: var(--primary-light);
  background: rgba(59, 130, 246, 0.08);
  padding: 3px 8px;
  border-radius: 4px;
}

.qa-item-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: 6px;
}

.qa-item-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.qa-item-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.qa-item-tag {
  font-size: 12px;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 3px 8px;
  border-radius: 4px;
}

/* 分页 */
.qa-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  margin-top: 32px;
}

.qa-page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  font-size: 14px;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.qa-page-btn:hover:not(.active) {
  border-color: var(--primary-color);
  color: var(--primary-light);
}

.qa-page-btn.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

/* 空状态 */
.qa-empty {
  text-align: center;
  padding: 60px 20px;
}

.qa-empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.qa-empty p {
  font-size: 14px;
  color: var(--text-muted);
}

/* 右侧SEO栏 */
.qa-seo-sidebar {
  position: sticky;
  top: 100px;
  height: fit-content;
}

.seo-widget {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

.seo-widget:last-child {
  margin-bottom: 0;
}

.seo-widget-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.seo-widget-title svg {
  color: var(--primary-light);
}

.seo-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.seo-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.seo-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  background: var(--bg-tertiary);
  border-radius: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s ease;
}

.seo-tag:hover {
  background: var(--primary-color);
  color: white;
}

.seo-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.seo-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  background: var(--bg-tertiary);
  border-radius: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s ease;
}

.seo-link:hover {
  background: var(--primary-color);
  color: white;
}

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

.seo-faq-list li {
  margin-bottom: 10px;
}

.seo-faq-list li:last-child {
  margin-bottom: 0;
}

.seo-faq-list li a {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  line-height: 1.6;
  padding: 6px 0;
  transition: color 0.2s ease;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.seo-faq-list li a:hover {
  color: var(--primary-color);
}

.seo-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.seo-stat-item {
  text-align: center;
  padding: 16px 10px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.06), rgba(139, 92, 246, 0.06));
  border-radius: 10px;
}

.stat-num {
  display: block;
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-light);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
}

/* 响应式 */
@media (max-width: 1200px) {
  .qa-layout {
    grid-template-columns: 180px 1fr;
    gap: 24px;
  }
  
  .qa-seo-sidebar {
    display: none;
  }
}

@media (max-width: 900px) {
  .qa-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .qa-sidebar {
    position: static;
  }
  
  .category-nav {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

@media (max-width: 768px) {
  .qa-title {
    font-size: 20px;
  }
  
  .qa-item {
    padding: 18px;
  }
  
  .qa-item-title {
    font-size: 15px;
  }
}

/* 详情页样式 */
.qa-detail-page {
  padding: 40px 0;
}

.qa-detail-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 40px;
}

.qa-detail-page .qa-main {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  min-height: auto;
}

.qa-header {
  padding: 32px;
  border-bottom: 1px solid var(--border-color);
}

.qa-breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
}

.qa-breadcrumb a { color: var(--text-secondary); transition: color var(--transition-fast); text-decoration: none; }
.qa-breadcrumb a:hover { color: var(--primary-light); }
.qa-breadcrumb .separator { color: var(--border-color); }
.qa-breadcrumb .current { color: var(--text-muted); max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.qa-badge-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.qa-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 16px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(139, 92, 246, 0.12));
  color: var(--primary-light);
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
}

.qa-detail-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 16px;
}

.qa-detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.qa-detail-tags .tag {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: var(--radius-md);
  font-size: 13px;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.qa-detail-tags .tag:hover {
  background: var(--primary-color);
  color: white;
}

.qa-answer-section {
  padding: 32px;
}

.answer-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary-light);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary-color);
}

.qa-answer-content {
  font-size: 16px;
  color: var(--text-primary);
  line-height: 2;
  padding: 24px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.04), rgba(139, 92, 246, 0.04));
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

.qa-nav-section {
  margin-top: 40px;
  padding: 30px 32px 0;
  border-top: 1px solid var(--border-color);
}

.qa-nav-section h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.qa-related-section {
  margin-top: 30px;
  padding: 30px 32px;
  border-top: 1px solid var(--border-color);
}

.qa-related-section h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.qa-nav-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.qa-nav-btn {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 20px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
  text-decoration: none;
  color: inherit;
}

.qa-nav-btn:hover {
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.1);
}

.qa-nav-btn.disabled { opacity: 0.45; pointer-events: none; }
.qa-nav-btn.next { text-align: right; }
.nav-label { font-size: 12px; color: var(--text-muted); font-weight: 500; }
.nav-text {
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 500;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-qa-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

@media (max-width: 1200px) {
  .related-qa-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .related-qa-grid {
    grid-template-columns: 1fr;
  }
}

.related-qa-card {
  display: flex;
  gap: 12px;
  padding: 14px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
  text-decoration: none;
  color: inherit;
}

.related-qa-card:hover {
  border-color: var(--primary-color);
  transform: translateY(-2px);
}

.related-qa-icon { font-size: 20px; flex-shrink: 0; }
.related-qa-info { flex: 1; min-width: 0; }
.related-qa-question {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 4px;
}
.related-qa-cat { font-size: 12px; color: var(--text-muted); }

.qa-detail-page .qa-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: static;
  height: auto;
}

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 24px;
}

.widget-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.widget-title svg { color: var(--primary-light); }

.qa-info-list { display: flex; flex-direction: column; gap: 14px; }
.info-item { display: flex; justify-content: space-between; align-items: center; padding-bottom: 10px; border-bottom: 1px solid var(--border-color); }
.info-item:last-child { border-bottom: none; padding-bottom: 0; }
.info-label { font-size: 14px; color: var(--text-muted); }
.info-value { font-size: 14px; color: var(--text-primary); font-weight: 500; }
.info-value a { color: var(--text-primary); text-decoration: none; }
.info-value a:hover { color: var(--primary-color); }

.quick-nav { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.quick-nav-item {
  display: flex; align-items: center; justify-content: center;
  padding: 10px; background: var(--bg-tertiary); border-radius: var(--radius-md);
  font-size: 13px; color: var(--text-secondary); text-decoration: none; transition: all var(--transition-fast);
}
.quick-nav-item:hover { background: var(--primary-color); color: white; }
.quick-nav-item.active { background: var(--primary-color); color: white; }

@media (max-width: 1024px) { 
  .qa-detail-layout { grid-template-columns: 1fr; } 
}

@media (max-width: 768px) {
  .qa-header { padding: 20px; }
  .qa-answer-section { padding: 20px; }
  .qa-nav-section { padding: 20px 20px 0; }
  .qa-related-section { padding: 20px; }
  .qa-nav-buttons { grid-template-columns: 1fr; }
  .related-qa-grid { grid-template-columns: 1fr; }
  .qa-detail-title { font-size: 20px; }
}