复古极简风自行车海报设计

复古极简自行车海报设计，自行车用深蓝色线条勾勒，配以泛黄复古背景。画面结构平衡，采用醒目的字体和简约几何构成车身与车轮，整体氛围怀旧又简洁。

AI art prompt English：

Vintage minimal poster design featuring a stylized bicycle, outlined in deep navy blue against a faded yellow background. The composition is balanced with bold fonts, simple geometric shapes representing wheels and frame, evoking nostalgia and simplicity.