GPT Image提示词：

A meticulously drafted engineering blueprint of a massive humanoid guardian mech, shown in a three-quarter front view on aged pale-blue drafting paper. Its broad shoulders, layered ceramic armor, articulated fingers, exposed hydraulic joints, and compact sensor array are rendered with crisp white and charcoal technical linework. Include a few restrained callout arrows, measurement marks, and tiny schematic symbols that feel functional but contain no readable words, labels, logos, or insignia. Fine graphite construction lines remain visible beneath the finished drawing, while subtle paper fibers and worn edges give the sheet a tactile archive quality. A single muted amber accent marks key access panels. Keep the machine centered with generous margins and a clean, legible silhouette. Soft overhead studio light reveals the paper texture without glare. Precise industrial illustration, restrained palette, sharp focus, intricate mechanical detail, high-resolution print finish.

中文提示词：

一张精细绘制的工程蓝图，描绘巨型人形守卫机甲，以正面偏侧的四分之三视角呈现在泛旧的浅蓝制图纸上。宽阔肩甲、层叠陶瓷装甲、灵活手指、外露液压关节和紧凑传感器阵列，都以清晰的白色与炭灰色技术线条刻画。画面包含少量克制的引线、尺寸刻度与微型示意符号，呈现实用感，但不出现可读文字、标签、标志或徽记。成稿下方仍隐约可见石墨构造线，细腻纸纤维与磨损纸边增添档案图纸的触感。少量柔和琥珀色点缀关键检修面板。机甲居中，四周留白充足，轮廓清楚易辨。柔和顶灯照亮纸张纹理而不产生眩光。工业插画风格，配色克制，焦点锐利，机械细节繁复，高分辨率印刷质感。

说明：旧蓝图纸上，一台装甲层叠的守卫机甲以工程线稿清晰展开。