/* ============================================
   导出面板样式
   ============================================ */

.export-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.export-option {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  border: 2px solid var(--border-light);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.export-option:hover {
  border-color: var(--primary-light);
  background: var(--primary-bg);
}
.export-option.active {
  border-color: var(--primary);
  background: var(--primary-bg);
}

.export-option-icon {
  font-size: 28px;
  flex-shrink: 0;
}

.export-option-info h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.export-option-info p {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}

/* 章节选择区 */
.export-chapter-select {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}
.export-chapter-select h4 {
  font-size: 14px;
  margin-bottom: 12px;
}

.chapter-checkboxes {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 6px;
  max-height: 200px;
  overflow-y: auto;
  margin-bottom: 12px;
}
.chapter-checkbox-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: var(--border-radius-sm);
  font-size: 13px;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.chapter-checkbox-item:hover {
  background: var(--bg-surface-hover);
}
.chapter-checkbox-item input[type="checkbox"] {
  cursor: pointer;
}

.export-select-actions {
  display: flex;
  gap: 8px;
}

/* 导出进度 */
.export-progress {
  margin-top: 16px;
  text-align: center;
  padding: 20px;
  color: var(--text-secondary);
}
.export-progress .spinner {
  margin: 0 auto 12px;
}