暖调粉彩≈降饱和不降温度

Push this illustration into [style: professional Lo-Fi art style]: warm, slightly muted pastel tones layered with film grain, soft focus, gentle light fade, and a vignette pulled in tight to carry the nostalgic, chill mood. Natural light wraps the character softly, warm highlights and shadows settling across skin and hair. Land the whole piece in that relaxed, nostalgic Lo-Fi comfort zone, while composition and character stay exactly as they were.

把这幅插画推向[style: 专业Lo-Fi艺术风格]：暖调略灰的粉彩色叠加胶片颗粒、柔焦、渐弱的光线和收紧的暗角，撑起那种怀旧慵懒的氛围。柔和的自然光包裹角色，暖色高光与阴影落在皮肤和发丝上。整体落进Lo-Fi特有的松弛怀旧舒适区，构图和角色完全不动。