Post format for daily-fables

One file per fable in _posts/, named YYYY-MM-DD-<concept-slug>.md (slug = lowercase English concept, hyphens, e.g. cgroup-cpu-throttling).

---
layout: fable
title: "<中文标题> · <English Title>"
title_zh: "<中文标题>"
title_en: "<English Title>"
concept: "<English concept name>"
tags: [<1-3 lowercase area tags>]
illustration: /assets/art/YYYY-MM-DD-<concept-slug>.jpg
youtube_id: "<YouTube video ID, omit if no video>"
---
<section class="zh" markdown="1">
中文正文（不含标题行）…

### 这是什么

概念解释…

### 为什么重要

重要性说明…

_隐喻对应表_

- 故事元素 → 概念元素
</section>
<section class="en" markdown="1">
English body (without the title line)…

### What it is

Concept explanation…

### Why it matters

Why it matters…

_Metaphor mapping_

- story element → concept element
</section>

Writing rules

• No 每日寓言/Daily Fable prefix in titles; don’t spoil the concept term in titles.
• Section labels (这是什么, 为什么重要, What it is, Why it matters) are ### h3 headings, NOT bold text.
• **bold** is for in-story emphasis only, never for section labels.
• Mapping-table lines become markdown list items - , blank line before the first item.
• _italic_ and backtick code spans work in kramdown unchanged. Escape double quotes in front-matter strings.

Illustration (assets/art/)

Each fable gets one AI-generated illustration, same filename stem as the post, generated via the nanobanana MCP generate_image tool.

• Prompt describes the STORY scene only (setting, characters, action, mood) — never the technical concept, no diagrams, no arrows, no labels, no text in the image.
• Style: Ink wash painting (水墨画) with 点睛之笔 color accents. Predominantly monochrome with selective vermillion red. Bold dark strokes, strong contrast, wet-on-dry brushwork. Male characters wear wuxia (武侠) style hanfu. Female characters wear elegant flowing Tang Dynasty dress (飘逸唐装).
• model_tier: "nb2", resolution: "2k", aspect_ratio: "16:9", enable_grounding: false.
• Compress with ImageMagick: magick input.png -resize 1920x1080 -quality 75 output.jpg.
• Reference in front matter: illustration: /assets/art/<same-stem>.jpg.