"## Core Gameplay
### Basic Controls
- **Drag and Drop:** Long press and drag an item to the corresponding category area.
- **Correct Placement:** Place the item in the correct category to score points.
- **Incorrect Placement:** The item will bounce back to its original position, requiring you to try again.
- **Complete Level:** Collect all items to advance to the next level.
### Game Mechanics
- **Scoring System:** Correctly placing items earns 10 points; completing a level earns an additional 50 points.
- **Level Progression:** The number of items and difficulty gradually increase in each level.
- **Categorization Challenge:** Each level contains 2-4 different item categories.
- **Time Challenge:** Completing levels quickly earns higher scores.
## Game Features
### Progress Tracking
- **Real-time Statistics:** Displays total score, highest level, and collection progress.
- **Data Persistence:** Game progress is automatically saved and will not be lost after restarting the game.
- **Detailed Records:** Records the number of games played, game duration, and the number of unlocked items.
### Collection System
- **8 Categories:** Daily necessities, school supplies, food, beauty products, entertainment, clothing, tools, and toys
**72 Items:** A rich item library, each with a unique emoji icon.
**Unlock Mechanism:** Unlock new items through gameplay and view detailed information.
**Category Progress:** Progress for each category is displayed independently.
### Achievement System
**8 Achievements:** The path from novice collector to warehouse master
**Unlock Conditions:** Collect items, complete classifications, challenge records, etc.
**Progress Display:** Real-time display of achievement completion progress.
**Sense of Achievement:** Unlock achievements and gain a sense of satisfaction.
### Personalization Settings
**Sound Effects Control:** Turn game sound effects on/off.
**Vibration Feedback:** Turn haptic feedback on/off.
**Animation Effects:** Turn interface animations on/off.
**Background Themes:** Multiple background themes to choose from.
## Game Interface
### Homepage
**Progress Cards:** Displays item collection progress, classification completion rate, and overall completion percentage.
**Daily Challenges:** Special challenge modes for completing specific objectives.
**Function Entry Points:** Start Game, View Collections, Achievements, Settings
### Game Page
**Item Area:** Displays items to be classified, using a four-column grid layout.
**Category Area:** Displays target categories, arranged horizontally.
**Progress Display:** Current score and completion progress.
**Back Button:** Returns to the main page at any time."
A fun item sorting and organization game!