竖版双拼世纪中期现代风格插画

Create a vertical split-style full illustration, with the vertical canvas divided 1:1 between top and bottom, overall resembling a retro and restrained design work. The upper half presents a refined version of the main subject from the uploaded original image, and the lower half presents a Mid-century Modern style reconstruction of the same subject.

Upper Half:
Use the uploaded original image as the sole subject reference source, automatically identify people, cats, dogs, or other common pets in the image, focusing on extracting the subject, and do not use architecture or complex environments as core content. Try to preserve the person's face shape, features, hairstyle, clothing, sense of age, temperament, and accessories, or the pet's fur color, pattern, face shape, ears, and body type. Simplify the background appropriately, the subject should be clear and complete, the composition stable, clean, and natural.

Lower Half:
Transform the same subject into a full illustration in the "Mid-century Modern" visual language. Core style features: 1950s to 60s simplified figures, Atomic Age geometry, warm retro colors, and paper grain. General principles: use clear geometric structures, flat color blocks, and ordered composition, controlling hierarchy and white space. The composition uses a single clear subject or a clear scene, the visual center is stable, the subject is complete and not cropped, the background is moderately simplified and retains breathing space; lines, color blocks, light and shadow, materials, and paper textures must serve the same style, without mixing in unrelated art styles. Simplify and organize the subject image using Mid-century Modern design language, emphasizing retro warm colors, Atomic Age geometric symbols, paper texture, and concise flattened human/pet shapes, giving the image a clear 50s-60s design poster and illustration temperament. The image should be natural, have a handmade feel and recognizable style characteristics, avoiding AI's common over-smoothness, meaningless accumulation of details, and random decorations.

Overall Requirements:
The upper and lower subjects must maintain obvious consistency; the lower half should be immediately recognizable as the Mid-century Modern version of the same subject in the upper half. Unless the theme explicitly requires it, do not generate text, logos, watermarks, borders, UIs, and no multi-image stitching.

创作一张竖版上下双拼风格的完整插画，纵向画布上下各占 1:1，整体像一张复古而克制的设计作品。上半部分呈现上传原图主体的提炼版，下半部分呈现同一主体的世纪中期现代风格重构。
上半部分：
以上传原图作为唯一主体参考来源，自动识别画面中的人物、猫、狗或其他常见宠物，重点提取主体，不将建筑和复杂环境作为核心内容。尽量保留人物的脸型、五官、发型、服饰、年龄感、气质和配件，或宠物的毛色、花纹、脸型、耳朵和体型。背景适当简化，主体清晰完整，构图稳定，干净自然。
下半部分：
将同一个主体转化为「Mid-century Modern 世纪中期现代」视觉语言的完整插画。核心风格特征：50 至 60 年代简化人物、原子时代几何、暖复古色和纸张颗粒。整体原则：采用清晰的几何结构、平面块面与秩序化构图，控制层级和留白。构图采用单一明确主体或一个清晰场景，视觉中心稳定，主体完整不被裁断，背景适度简化并保留呼吸感；线条、色块、明暗、材质和纸面纹理必须服务于同一风格，不混入无关画风。将主体形象以世纪中期现代设计语言进行简化和整理，强调复古暖色、原子时代几何符号、纸张质感和简练平面化人物/宠物造型，使画面呈现明显的 50–60 年代设计海报与插画气质。画面自然、有手作感和可识别的风格特征，避免 AI 常见的过度光滑、无意义细节堆砌和随机装饰。
整体要求：
上下主体必须保持明显一致性，下半部分能一眼看出是上半部分同一主体的世纪中期现代版。除非主题明确要求，否则不生成文字、Logo、水印、边框、UI，不做多图拼接。