Hyper-realistic Korean-style cold beauty portrait

9:16 vertical aspect ratio, single independent frame, hyper-realistic Korean-style cold/cool female portrait photography, real camera texture, cold blue-grey tone, soft natural light, clear, gentle, exquisite, slightly dreamy. [Facial Features] A stunning adult East Asian woman aged 23-25, delicate small oval face, softly narrowed jawline, round small chin, clear cold white porcelain skin, light pink blush. Bright clear grey-blue almond eyes, natural double eyelids, fine lying silkworms, long curled lashes, light grey-brown eyebrows, slender straight nose bridge, small nose tip. Soft full rose-pink lips, slight moist gloss, lips naturally slightly parted, expression cold and gentle, eyes quietly looking directly at the lens. Refined harmonious facial features, retaining natural skin texture, avoiding exaggerated influencer face. [Hairstyle - Core Focus] Extremely dense fluffy light silver-grey linen-colored long hair, with pale champagne grey and cold silver luster. Hair length extends to waist, top of head is fluffy, roots have natural airy feel. Thin fluffy air bangs, some broken strands naturally cover forehead. Long hair presents soft large arc waves, abundant volume, side long curls naturally draped over shoulders and chest. Some silver-grey strands gently blown by breeze, a few thin long strands crossing cheeks and near lips. Hair has clear individual strands, natural fluffiness and real weight, avoiding wig texture. [Clothing] Wearing cream white, light grey-pink slim-fit long-sleeve knit top. Soft fine ribbed knit fabric, simple round neck, fitting natural body contour. Clothing color is light and soft, with real knit texture and natural wrinkles. [Person Pose] Person faces camera frontally, body slightly tilted, shoulders relaxed. One hand on left side of frame naturally raised, fingers gently curved, knuckles near chin and below lips, forming lazy face-resting pose. Other hand raised next to hair, gently pinching a bundle of silver-grey long curls. Head slightly tilted, gaze direct into lens, expression calm and gentle. Fingers naturally slender, accurate joint structure. [Background] Simple modern cold blue-grey indoor space, light grey-blue walls, dark grey cabinet doors and natural shadows. Clean background, no complex furniture or decorations. Person centered in frame, silver-grey long curls occupying both sides of frame, background retains slight natural blur. [Lighting & Photography] Soft cold white side-front natural light, face bright, skin presenting clear cold white. Silver-grey long hair illuminated by soft light, producing delicate silver-white and champagne-grey reflections. Face retains natural light grey shadows, eyes have clear soft reflection points. Overall low saturation cold blue-grey grading, soft contrast, slight optical soft focus, real camera grain. Equivalent 50mm portrait lens, close-up half-body composition, eye-level height, clear face, real depth of field. [Negative Prompts] Anime, illustration, 3D render, CG fake face, plastic skin, excessive smoothing, exaggerated big eyes, pointed chin, distorted features, misaligned eyes, wig, stiff curls, clumped hair, overly neat bangs, deformed fingers, extra fingers, fused hands, abnormal body proportions, clothing clipping through body, strong HDR, over-sharpening, commercial studio light, severe overexposure, obvious AI look, text, watermark, logo, collage.