AI 驱动的产品需求文档创建工具，采用 6 阶段 SOP 工作流，支持项目-模块-功能三层结构，内置多角色评审机制，使用 bea utiful-mermaid 渲染高质量图表，让 PRD 编写更高效、更专业。 AI-powered PRD creation tool with 6-phase SOP workflow. Features three-tier structure (Project-Module-Feature ), multi-role review, and beautiful-mermaid diagram rendering for efficient, professional product documentation.