A hand-drawn infographic illustration in pastel watercolor style, educational diagram about [主题内容/文章内容], featuring:

- Clean white background

- Soft pastel colors (light blue, mint green, lavender purple, soft pink, pale yellow)

- Hand-sketched boxes and rounded rectangles with colored borders

- Simple cartoon-style icons and symbols

- Pencil sketch texture with watercolor fill

- Clear information hierarchy with arrows connecting concepts

- Mix of text in Chinese and English

- Technical concept visualization

- Comparison layout / flowchart / process diagram style

- Doodle-style decorative elements (stars, sparkles, small illustrations)

- Clean, friendly, and approachable design

- Educational and professional tone

- Crayon or colored pencil shading effect

- White space for readability