✨ Major Improvements:
- Layout optimization: Reduced navigation panel to 350px, maximized content area
- Navigation centralization: All operations in left panel with unified workflow
- History stack management: Implemented step-by-step back navigation
- Loading animations: Added loading spinners for all async operations
- Scrollable lists: Added custom scrollbar for long theme lists (max-height: 600px)
- Breadcrumb navigation: Visual path tracking with quick jump functionality
🎨 User Experience:
- Navigation paths show current position (e.g., Home › 市级 › 开办电影院)
- Clickable breadcrumbs for fast navigation to any step
- "Back" button for sequential navigation
- "Home" button to reset all selections
- Custom scrollbar styling matching UI design
- Responsive design with proper overflow handling
🔧 Technical Implementation:
- Step state machine (1→2→3→4 workflow)
- History stack for multi-step navigation
- Dynamic breadcrumb generation
- Smart state cleanup on quick jumps
- Loading states for all API operations
📁 Files Modified:
- static/db_admin.html: Complete UI/UX overhaul (734 lines)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Codex Agent