Hand-drawn three-step flowchart

[Input data]
- Overall title: Night-shift introduction 3-step flowchart
- Step 1: Title "掌握白班" / Time period "{step1Period}" / Description “{step1Desc}”
- Step 2: Title "{step2Title}" / Time period "{step2Period}" / Description “{step2Desc}”
- Step 3: Title "{step3Title}" / Time period "{step3Period}" / Description “{step3Desc}”
- Color scheme theme: Green

[结构与布局规范]
- Style: A simple, friendly 3-step flowchart illustration suitable for Japanese business Slides, teaching handbooks, or internal documents. 16:9 horizontal Slides configuration.
- Background: Clean off-white or pure white background.
- Top title:
  - Place “图 3” or a step badge in the upper-left corner, and draw the large Japanese main title “{mainTitle}” to its right, using a bold, highly legible Gothic font. Place a small, simple abstract Logo along the right edge.
- Step-card arrangement:
  - Arrange three beautiful rectangular cards side by side. Place them from left to right and connect them with thick arrows. Neatly color-code each card’s border according to the color scheme theme ({colorTheme}).
- Inside card 1 (left):
  - Draw a circular badge “1” and the prominent Japanese title “{step1Title}”. Place a capsule label below it displaying “{step1Period}”.
  - Place in the center an illustration in a soft hand-drawn style of a Japanese woman taking notes, along with a window showing the sun.
  - Place the Japanese description “{step1Desc}” at the bottom.
- Inside card 2 (center):
  - Draw a circular badge “2” and the prominent Japanese title “{step2Title}”. Place a capsule label below it displaying “{step2Period}”.
  - Place in the center an illustration of two Japanese women holding flashlights, with a night sky and buildings.
  - Place the Japanese description “{step2Desc}” at the bottom.
- Inside card 3 (right):
  - Draw a circular badge “3” and the prominent Japanese title “{step3Title}”. Place a capsule label below it displaying “{step3Period}”.
  - Place in the center an illustration of a night sky, a crescent moon, and a Japanese woman smiling and making a victory pose.
  - Place the Japanese description “{step3Desc}” at the bottom.

[质量与字体规范]
- Simple, clean 2D illustration, flat design, with clear and crisp lines.
- All text must be accurately rendered in readable Japanese fonts (Gothic), with no spelling errors.
- Exclude all 3D effects, shadows, laptop mockup backgrounds, or camera tilts; display the flat chart itself across the entire screen.

- Aspect ratio: --ar 16:9

[输入数据]
- 总标题：夜班介绍 3 步流程图
- 第 1 步：标题 "掌握白班" / 时段 "{step1Period}" / 描述 "{step1Desc}"
- 第 2 步：标题 "{step2Title}" / 时段 "{step2Period}" / 描述 "{step2Desc}"
- 第 3 步：标题 "{step3Title}" / 时段 "{step3Period}" / 描述 "{step3Desc}"
- 配色主题：绿色

[结构与布局规范]
- 风格：适用于日式商务 Slides、教学手册或内部文档的简洁友好型 3 步流程图插画。16:9 横向 Slides 配置。
- 背景：干净的米白色或纯白色背景。
- 顶部标题：
  - 在左上角放置“图 3”或步骤徽章，其右侧绘制大号日文主标题“{mainTitle}”，使用粗体、易读的哥特体。在右侧边缘放置一个小巧简洁的抽象 Logo。
- 步骤卡片排列：
  - 三张精美的矩形卡片并排排列。从左到右依次放置，并用粗箭头连接。每张卡片的边框根据配色主题 ({colorTheme}) 进行整齐的颜色编码。
- 卡片 1（左）内部：
  - 绘制圆形徽章“1”和醒目的日文标题“{step1Title}”。下方放置一个胶囊标签，显示“{step1Period}”。
  - 中心处放置一张带有柔和手绘风格的日本女性做笔记的插图，以及一个显示太阳的窗口。
  - 底部放置日文描述“{step1Desc}”。
- 卡片 2（中）内部：
  - 绘制圆形徽章“2”和醒目的日文标题“{step2Title}”。下方放置一个胶囊标签，显示“{step2Period}”。
  - 中心处放置一张两名日本女性手持手电筒、夜空和建筑物的插图。
  - 底部放置日文描述“{step2Desc}”。
- 卡片 3（右）内部：
  - 绘制圆形徽章“3”和醒目的日文标题“{step3Title}”。下方放置一个胶囊标签，显示“{step3Period}”。
  - 中心处放置一张夜空、新月以及一名日本女性微笑并做出胜利姿势的插图。
  - 底部放置日文描述“{step3Desc}”。

[质量与字体规范]
- 简洁、干净的 2D 插画，扁平化设计，线条清晰明快。
- 所有文字必须准确绘制为可读的日文字体（哥特体），不得出现拼写错误。
- 排除所有 3D 效果、阴影、笔记本电脑样机背景或相机倾斜；在整个屏幕上显示扁平图表本身。

- 长宽比：--ar 16:9