* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: #f6f8fa;
  min-height: 100vh;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
}

.page-header {
  margin-bottom: 24px;
}

.page-header h1 {
  font-size: 24px;
  font-weight: 700;
  color: #1a1a2e;
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-header h1 i {
  color: #667eea;
}

.page-header p {
  font-size: 14px;
  color: #888;
  margin-top: 6px;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.category-card {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  transition: all 0.2s;
  border: 1px solid transparent;
}

.category-card:hover {
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  border-color: #e8ecf0;
  transform: translateY(-2px);
}

.category-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.category-card-header i {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: #f0f4ff;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #667eea;
  font-size: 16px;
  flex-shrink: 0;
}

.category-name {
  font-size: 16px;
  font-weight: 600;
  color: #1a1a2e;
}

.category-desc {
  font-size: 13px;
  color: #888;
  line-height: 1.5;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}

.category-meta {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: #aaa;
  padding-top: 12px;
  border-top: 1px solid #f0f2f5;
}

.category-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.category-meta i {
  font-size: 13px;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 32px 0 48px;
}

.pagination-info {
  font-size: 13px;
  color: #999;
}

.pagination-btns {
  display: flex;
  gap: 4px;
}

.page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: #666;
  text-decoration: none;
  transition: all 0.15s;
  border: 1px solid #e8ecf0;
  background: #fff;
}

.page-btn:hover {
  border-color: #667eea;
  color: #667eea;
}

.page-btn.active {
  background: #667eea;
  color: #fff;
  border-color: #667eea;
}

@media (max-width: 1024px) {
  .categories-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 768px) {
  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .categories-grid {
    grid-template-columns: 1fr;
  }
}