Warm anime illustration, early winter evening on Lidong, the winter-beginning solar term. A young adult woman in her early twenties with long dark hair in a loose braid, wearing a cream knitted sweater and rust-red scarf, sits curled on a tatami floor beside a low wooden table, reading a handwritten letter by the glow of a small clay stove. The stove's orange firelight warms her face and hands, a white envelope and a steaming cup of tea rest on the table, and through the paper-screen window behind her, snow falls silently against a deep blue dusk sky. Soft cel-shaded anime style, clean linework, gentle gradients, warm amber and cool indigo color contrast, cozy quiet mood, no text, no watermark, no logo, anatomically correct hands and face, 3:4 vertical composition.