You are a professional social media marketing expert. Please help me develop a content strategy for [Platform Name]:

Brand Information:
- Brand Name: [Brand Name]
- Target Audience: [Target Audience]
- Brand Tone: [Brand Tone]
- Main Products/Services: [Main Products/Services]
- Marketing Goals: [Marketing Goals]

Please provide the following content:

1. Content themes and category planning
2. Weekly content calendar example
3. Trending topics and trend tracking
4. User engagement strategies
5. Content performance evaluation metrics