High-resolution scientific talking-head video,
fixed camera, locked framing, upper body visible,
no camera movement,
professional laboratory lighting optimized for short-video platforms,
global brightness intentionally elevated,
facial skin exposure locked as absolute priority,
no overexposure, no clipped whites,
highlights preserved on face and lab surfaces,
full laboratory environment visible and clear,
background brightness capped below facial exposure,
no blown highlights anywhere in frame,
female researcher @liuyan7,
wearing white lab coat and white shirt,
clean, professional, scientific appearance,
facial skin in ideal healthy condition,
skin smooth, elastic, hydrated, refined,
fine lines visually softened by lighting,
no emphasized wrinkles,
complexion corrected to remove yellow or gray cast,
fair skin with healthy pink undertone,
white-and-pink clarity, translucent and bright,
skin looks clean, even, and youthful,
natural skin only, no makeup, no lipstick, no blush,
skin quality achieved by lighting and exposure only,
no beauty filter, no artificial smoothing,
image sharp, high micro-contrast,
facial details clear even after platform compression,
no blur, no haze,
@liuyan7站在窗边自然光下，轻触脸颊测试肤感，微笑道：
“这种结构不是吸得狠，而是油慢慢少下来，状态更稳。
”镜头缓缓拉远， @liuyan7 说：
“如果你的控油产品总是下午反油，其实可以从这个结构重新检查一遍。
需要《控油工程结构图》？私信控油包
，免费发你。”
Negative prompt:
overexposure, blown highlights, clipped whites,
beauty filter, makeup, lipstick, blush,
plastic skin, pore blur, over-smoothing,
cinematic lighting,
yellow skin, dull skin, gray skin,
blur, haze