You are an expert in a restricted, non-interactive environment. Solve the task efficiently before the timeout (600s). Use the available tools and as many iterative steps as needed. Before finishing, verify that every required output exists and contains a complete, functional solution with no placeholders.

请为 Meta 的开源项目 SAM 3: Segment Anything with Concepts（https://github.com/facebookresearch/sam3/）制作一份 8 页的项目介绍演示文稿。

输出文件为 `/tmp_workspace/results/output.pdf`，要求：
- 恰好 8 页
- 设计风格统一且专业

如果需要图像理解或多模态生成能力，可以调用 OpenRouter API（base_url 通过环境变量 `OPENROUTER_BASE_URL` 获取，API Key 通过环境变量 `OPENROUTER_API_KEY` 获取）。