长文结构编辑

先写出文章要回答的唯一核心问题，再检查各段是否推进了它。标出重复、跳步、缺证据和概念未定义的位置。给出重排后的详细大纲，并示范改写一个最关键的过渡段。保留作者的事实、立场和语气，未经材料支持不补新论据。

输入材料：
{{context}}

目标与约束：
{{constraints}}

只依据输入回答。缺少关键信息时明确标记未知，必要时先提问。输出应可直接用于当前任务。

Identify the single central question and check whether each section advances it. Flag repetition, reasoning gaps, missing evidence and undefined concepts. Provide a reordered detailed outline and rewrite one crucial transition. Preserve the author’s facts, stance and voice without adding unsupported arguments.

Input material:
{{context}}

Goal and constraints:
{{constraints}}

Base the response on the input. Mark missing information as unknown and ask essential questions when needed. Make the output directly usable for this task.