# Strategic Cooperation Description Update

## Summary

Updated the Strategic Cooperation section to allow configurable descriptions from the admin panel, with content displayed in 2 lines on the official website.

## Changes Made

### 1. Backend Changes

#### Database Model (`backend/app/models.py`)
- Added `description` field (TEXT type) to `StrategicCooperation` model

#### API Routes (`backend/app/routes.py`)
- Updated GET endpoint to return `description` field
- Updated POST endpoint to accept `description` field
- Updated PUT endpoint to update `description` field

### 2. Admin Panel Changes (`admin-web/src/views/StrategicCooperation.vue`)

- Added "描述" column to the table view
- Added textarea input for description in the create/edit dialog
- Updated form data structure to include `description` field
- Description input supports multi-line text with 3 rows

### 3. Official Website Changes (`official-web/src/views/Home.vue`)

- Updated to display `description` from API response
- Falls back to default text if description is empty
- CSS already configured to limit display to 2 lines using `-webkit-line-clamp: 2`

### 4. Database Migration

Created migration files:
- `backend/add_description_to_strategic_cooperation.sql` - SQL script
- `backend/migrate_strategic_cooperation.py` - Python migration script
- `backend/MIGRATION_INSTRUCTIONS.md` - Detailed instructions

## How to Apply Changes

### Step 1: Run Database Migration

```bash
cd backend
python migrate_strategic_cooperation.py
```

### Step 2: Restart Backend Server

```bash
cd backend
python run.py
```

### Step 3: Update Admin Panel

The admin panel will automatically pick up the new field. No rebuild needed if using dev server.

### Step 4: Update Official Website

The official website will automatically display descriptions from the API.

## Testing

1. Log into admin panel at `http://localhost:5173`
2. Navigate to "战略合作" (Strategic Cooperation)
3. Edit an existing item or create a new one
4. Add a description in the textarea field
5. Save the changes
6. Visit the official website homepage
7. Verify the description displays in the Strategic Cooperation section (limited to 2 lines)

## Features

- ✅ Configurable descriptions from admin panel
- ✅ Multi-line textarea input (3 rows)
- ✅ Display limited to 2 lines on official website
- ✅ Automatic text overflow with ellipsis
- ✅ Fallback to default text if description is empty
- ✅ Backward compatible with existing data