如何使用线性回归构建 Alpha 信号（量化框架）

原版提示词

一字未改。直接复制，或者让 Queenie 换成你自己的内容。

请基于参考封面的构图、视觉隐喻和公众号缩略图可读性，生成一张新的微信公众号横版封面。 输出尺寸：1456x582，比例约 2.5:1；核心主体和必要标题信息要兼顾公众号安全方形裁切。 公众号文章标题：{填写公众号文章标题} 简介：{填写简介} 原封面方法：如何使用线性回归构建Alpha信号（量化框架）风格双技能 Create a horizontal WeChat public-account article cover, 2.35:1 aspect ratio, for an article titled "如何使用线性回归构建 Alpha 信号（量化框架）". Central concept: 围绕“如何使用线性回归构建Alph…”提炼一个单一视觉隐喻，避免把全文信息塞进画面。 Style: preserve the reference cover's visual direction: 克制的现代公众号题图. Use a palette inspired by #000000 (black), #2c2e1d (charcoal), #030001 (black), #719280 (gray). Keep the image editorial, conceptual, and readable as a small WeChat thumbnail. Composition: 画面信息量较高，适合用中心主体加左右辅助信息，保持缩略图可读。 Keep the main subject and any essential title text inside the safe square crop, while using the full wide frame for atmosphere, secondary symbols, or directional motion. Text strategy: use either no text or a very short headline fragment from the title. If text is used, make it large, clean, and integrated into the layout rather than pasted on top. Mood: match the article skill "如何使用线性回归构建Alpha信号量化框架风格双技能" -- useful, sharp, high-signal, and slightly more memorable than a normal tutorial thumbnail. Avoid: photorealistic clutter unless the source cover is photo-led, fake logos, unreadable tiny text, generic gradient blobs, stock-office imagery, watermark-like marks, and literal screenshots unless the article is explicitly about software interfaces.