校园运动场红色跑道元气少女写实摄影

9:16 vertical, realistic natural life photography, highly realistic outdoor sports portrait, combining mobile documentary style with natural portrait texture. The main subject is a clearly adult young Chinese female, visual age about 22–25 years old, standing on a campus outdoor sports field next to a red plastic running track, having just finished a light run or warm-up exercise, the body is in a brief pause state, breathing feels natural, the overall temperament is energetic, bright, healthy, and lighthearted. 

The subject uses a close-up environmental composition from the chest up, the body is slightly angled towards the camera, shoulders naturally opened backwards, the head is slightly tilted to one side and turned towards the camera, forming a natural shoulder and neck twist relationship. The subject looks up directly at the camera, corners of the mouth naturally turned up, revealing a small amount of neat teeth, the smile is refreshing and approachable, not overly radiant, not a deliberate pose. The frame retains the direction of the subject's body movement and the extension of the track space, suitable as a reference first frame for subsequent videos of turning the head, raising a hand to tidy hair, stepping, and jogging forward. 

The subject has a compact and rounded small oval face, facial contours are natural and smooth, cheeks slightly full, the jawline is soft and clear, the chin is small but not excessively sharp. Features are delicate and bright, with a natural sense of vitality; eyes are clear round almond eyes, the gaze focus is real, pupils are dark brown, iris texture is naturally visible, corneal reflections from overcast sky light, eyes have a natural moistness and real luster, no glowing pupils. Eyebrows are natural with real hair flow; the nose bridge is delicate and smooth, the tip of the nose is rounded and natural, the nostril structure is real; lips are soft and natural, lip lines are clear, light pink lip color, makeup is a thin sports "no-makeup" look. 

Skin is of highly realistic texture, overall healthy and delicate but not perfect, retaining small pores on the forehead, nose bridge, cheeks, and around the nostrils, fine peach fuzz, slight uneven skin tone, a small amount of faint redness, fine lines under the eyes, and natural sebum reflections. The skin texture of the face, neck, and shoulders is consistent but not identical, retaining slight real color differences. After exercise, the skin has a slight damp feel, with a small amount of fine sweat beads and natural moisture reflections visible on the forehead, cheeks, neck, collarbone, shoulders, and chest, sweat is unevenly distributed, not excessive, does not form dense water droplets, no artificial spray texture. 

The subject's black long hair is tied into a slightly loose high ponytail or mid-high ponytail, a few strands of hair are loose after running, several slightly damp stray hairs near the forehead and sides of the face are close to the skin, the ponytail hangs naturally backwards, hair volume and weight feel real, not neat, no professional studio styling used. The edges of the hair are illuminated by soft sky light, hair layers are clear. 

The subject wears a light misty blue slim-fit sports tank top, shoulder straps are simple, fits the body but not overly tight, the fabric shows real sports fabric texture, with a small amount of natural sweat stains from exercise near the chest and neckline, color changes are slight and irregular. The clothing naturally expresses the contours of the shoulders, neck, collarbone, and upper body, overall healthy and sporty feel, not intentionally sexy. 

Background is a campus or urban outdoor sports field, a red plastic running track extends in a curve from behind the subject, on the right is a green soccer field or sports lawn, in the distance are trees, school buildings, stadium light poles, and blurred buildings. The background retains real environmental information but uses natural shallow depth of field blur, the subject's facial features and skin texture are the primary visual focus. The weather is overcast or soft early morning, sky light evenly illuminates the subject's face, the light is soft and clean, no strong hard shadows, the face, nose bridge, eyes, jaw, neck, and collarbone form delicate and natural light and shadow layers. 

Real photography perspective, equivalent to around a 50mm portrait focal length, close range but not using extreme wide-angle, facial proportions are natural, nose not excessively enlarged. High-definition details, real pores and sweat texture, slight candid snapshot feel, the image is transparent, clean, and natural, not gray or hazy, no excessive color grading, no commercial retouching filters. 

Negative constraints: Influencer face, plastic surgery template face, juvenile/underage look, Westernized features, chin too pointy, exaggerated large eyes, glowing pupils, glass bead eyes, heavy fake eyelashes, heavy makeup, fake smile, stiff expression, perfectly symmetrical face, plastic skin, ceramic skin, wax figure skin, excessive skin smoothing, skin texture loss, uniform pores across the face, sandpaper skin, acne and blemish pile-up, too many sweat beads, face full of water droplets, artificial water spray effect, excessive oiliness, HDR too strong, over-sharpening, extreme wide-angle, enlarged nose, neat and stiff hair, wig-like feel, plastic clothing texture, excessive background blur, distorted track, distorted body, wrong shoulder/neck structure, subtitles, logo, watermark.

9:16 竖版，写实自然生活摄影，高度真实的户外运动人像，手机纪实与自然人像质感结合。画面主体是一位明确成年的年轻中国女性，视觉年龄约 22–25 岁，站在校园户外运动场与红色塑胶跑道边，刚结束一段轻微跑步或热身运动，身体处于短暂停顿状态，呼吸感自然，整体气质元气、明亮、健康、轻快。

人物采用胸部以上环境近景构图，身体轻微侧向镜头，肩部自然向后打开，头部向一侧轻微倾斜并转向镜头，形成自然的肩颈扭转关系。人物抬眼直视镜头，嘴角自然上扬，露出少量整齐牙齿，笑容清爽、有亲近感，不过度灿烂，不是刻意摆拍。画面保留人物身体运动方向与跑道延伸空间，适合作为后续视频中转头、抬手整理头发、迈步和向前小跑的参考首帧。

人物拥有紧凑圆润的小鹅蛋脸，面部轮廓自然流畅，脸颊轻微饱满，下颌线柔和清晰，下巴小巧但不过分尖锐。五官清秀明亮，具有自然元气感；眼睛为清澈圆杏眼，眼神聚焦真实，瞳孔深棕色，虹膜纹理自然可见，角膜反射来自阴天天空光，眼睛有自然湿润感与真实光泽，不做发光瞳孔。眉毛自然，有真实毛流；鼻梁清秀流畅，鼻头圆润自然，鼻翼结构真实；嘴唇柔软自然，唇纹清晰，淡粉色唇色，妆容为轻薄运动伪素颜。

皮肤为高度真实质感，整体健康细腻但不完美，保留额头、鼻梁、脸颊和鼻翼周围的细小毛孔、细微绒毛、轻微肤色不均、少量淡淡泛红、眼下细纹与自然皮脂反光。面部与脖颈、肩部皮肤纹理一致但不完全相同，保留轻微真实色差。运动后皮肤带轻微潮湿感，额头、脸颊、脖颈、锁骨、肩膀和胸前可见少量细小汗珠与自然水分反光，汗水分布不均匀，不过量，不形成密集水珠，不做人工喷雾质感。

人物黑色长发扎成略微松散的高马尾或中高马尾，跑动后发丝有少量松动，额前与脸侧有几缕微湿碎发贴近皮肤，马尾自然向后垂落，发丝蓬松度和重量感真实，不整齐，不使用精致棚拍发型。头发边缘受柔和天空光照亮，发丝层次清晰。

人物穿浅雾蓝色修身运动背心，肩带简洁，贴合身体但不过度紧绷，面料呈真实运动布料纹理，胸口和领口附近有少量运动后的自然汗湿痕迹，颜色变化轻微且不规则。服装自然表现肩颈、锁骨与上半身轮廓，整体健康运动感，不刻意性感。

背景为校园或城市户外运动场，红色塑胶跑道从人物身后弧形延伸，右侧为绿色足球场或运动草坪，远处有树木、教学楼、体育场灯柱与模糊建筑。背景保留真实环境信息，但采用自然浅景深虚化，人物五官与皮肤纹理为第一视觉中心。天气为阴天或柔和清晨，天空光均匀照亮人物脸部，光线柔和、干净，没有强烈硬阴影，脸部、鼻梁、眼睛、下颌、脖颈和锁骨形成细腻自然的明暗层次。

真实摄影透视，等效 50mm 左右人像焦段，近距离但不使用极端广角，人物面部比例自然，鼻子不过度放大。高清细节，真实毛孔与汗液质感，轻微生活抓拍感，画面清透、干净、自然，不灰蒙，不过度调色，不使用商业精修滤镜。

负面约束：
网红脸，医美模板脸，幼态未成年感，欧美化五官，锥子脸，夸张尖下巴，夸张大眼，发光瞳孔，玻璃珠眼睛，假睫毛过重，浓妆，假笑，僵硬表情，完全对称脸，塑料皮，陶瓷皮，蜡像皮，过度磨皮，皮肤纹理消失，全脸统一毛孔，砂纸皮肤，痘痘与瑕疵堆积，汗珠过多，满脸水滴，人工喷水效果，油光过重，HDR过强，过度锐化，极端广角，鼻子放大，头发整齐僵硬，假发感，服装塑料感，背景过度虚化，跑道变形，身体扭曲，肩颈结构错误，字幕，logo，水印。