楼梯间胶片写真

【使用方式】根据上传的参考图生成新肖像，保持人脸特征与身份不变。 【主体】二十多岁的虚构成年女性偶像气质，自然不刻意，慵懒中带一丝俏皮；坐在楼梯上，一膝微曲，一手撑阶梯，一手系鞋带，头微仰望镜头，神情平静自信。 【服装造型】微 cropped 黑色西装外套随意敞开，内搭灰色罗纹紧身 Tee，宽松卡其工装裤，细银链项链，运动鞋鞋带半系。 【场景背景】小型唱片公司后楼梯间：搬家纸箱、磨损水泥台阶、灰色金属扶手、苍白的安保灯，私密后台感。 【灯光】楼梯间平光，柔和颗粒，低对比，轻微过曝，柔光晕染，安静亲密氛围。 【风格质感】日式负片胶片质感：柔和过曝、褪色中性色、低对比、细腻颗粒、快照式不完美构图；超写实、克制、电影感，右下角白色手写签名点缀。

Create a photorealistic image of a fictional adult female idol in her mid-20s, not resembling any real celebrity. Maintain a Japanese negative film look: soft overexposure, faded neutrals, low contrast, subtle grain, imperfect snapshot framing. Scene: the back stairwell of a small record label building, with moving boxes, scuffed concrete steps, a gray metal handrail, pale security light; quiet, intimate, workaday atmosphere. Wardrobe: slightly cropped black blazer worn open over a fitted heather-gray ribbed tee, loose khaki cargo pants, thin silver chain necklace, one sneaker lace half-tied. Composition: seated on stairs, one knee raised, one hand braced behind on the stair, head tilted up toward camera, calm slightly sultry self-possessed expression. Lighting: flat stairwell light, soft grain, muted tones, gentle highlight bloom. Photorealistic, restrained, cinematic. Small white handwritten signature on bottom right corner.