Minimal hand-drawn doodle illustration of [subject], simple black ink lines, playful sketch aesthetic, clean white background, whimsical and casual notebook style
[主体]的极简手绘涂鸦插画，简单的黑色墨水线条，俏皮的素描美学，干净的白色背景，异想天开且随意的笔记本风格
