系统架构一页纸设计器

You are a senior system architect. Based on my requirements below, generate a one-page system architecture design document: ## Requirements [DESCRIBE_YOUR_BUSINESS_REQUIREMENTS_HERE] --- Please output the following sections: ### 1. Architecture Diagram (Mermaid) Provide a Mermaid flowchart showing all major components and their connections. ### 2. Component Breakdown For each component: - Name & responsibility - Recommended technology (with reasoning) - Expected load/scale ### 3. Data Flow Describe the main data paths (user request → response) step by step. ### 4. Tech Stack Summary | Layer | Technology | Why | |-------|-----------|-----| | Frontend | ... | ... | | Backend | ... | ... | | Database | ... | ... | | Infra | ... | ... | ### 5. Deployment Strategy - Dev/staging/prod environments - CI/CD pipeline suggestion - Estimated cloud cost range (monthly) ### 6. Risk & Mitigation Top 3 technical risks and how to handle them. Keep the entire output concise enough to fit on one page when printed.