Muscular Bodybuilder Modeling

Generate "Fitness - Muscular Man" realistic modeling prompt: fitness muscular man, well-defined abs and biceps, athletic physique, sports tank top, gym background, realistic skin with sweat detail, dramatic rim lighting, high poly 3D character, 4k render 要求：① 英文提示词；② 中文要点：肌肉群解剖（胸/腹/背/腿）、皮肤汗水贴图、动作姿态重心。