Prompt:

Main character must have the boldest outline. Background lines must be thinner and simpler. Expressive but clean illustration with clear, open shapes easy to color. Steampunk elements (gears, pipes, airships) only in medium or large shapes, no micro-details, no repetitive small textures. Balanced composition with 70% focus on the main character and 30% simple background. Black and white line art only, pure white background. No shading, no grayscale, no pencil texture, no tiny details, no clutter. Clean vector-like outlines, bold contour for character, thinner contour for background. The scene shows: a young steampunk inventor boy wearing goggles, holding a single broken gear in his hands, looking at it with a soft, child-like expression of disappointment eyebrows slightly lowered, small frown, relaxed pose --no color grayscale shading texture sketch clutter tiny details noise --ar 8:11 --raw --v 7.0

主角必須有最大膽的輪廓。背景線條必須更細且更簡單。表現力強但乾淨的插圖，形狀清晰、開放，易於上色。蒸汽龐克元素（齒輪、管道、飛船）只有在中型或大型形狀中出現，不要微小細節，不要重複的小紋理。構圖平衡，主角佔70%的比例，簡單背景佔30%。只允許黑白線條藝術，純白背景。沒有陰影，沒有灰度，沒有鉛筆紋理，沒有小細節，沒有雜亂。乾淨的向量般的輪廓，角色的輪廓粗線，背景的輪廓細線。場景展示：一個年輕的蒸汽龐克發明家男孩，戴著護目鏡，手裡拿著一個破損的齒輪，眼神柔和，帶著孩子般的失望，眉毛稍微低垂，嘴角有小皺紋，姿勢放鬆。