纸箱半开，猫探出半张脸

A tight, eye-level close-up pet portrait built to show off facial expression and whisker detail: a domestic cat peeks out of a partially open cardboard box, positioned lower-center in a vertical 2:3 frame, its head and one paw filling roughly the lower third while the box takes up the lower half of the composition. Soft side lighting sculpts the fur and the box's edges, a gentle shadow on the opposite side giving it depth. Keep the background a muted dark field across the upper two-thirds, subtle texture only, nothing competing for attention. Render the fur short-to-medium with visible whisker tips, a matte nose, clear catchlights in the eyes, and slightly ruffled fur at the ear rim; the cardboard should show a corrugated edge and worn creases in warm brown tones against deep neutral shadow. Use shallow depth of field so only the cat's eyes and nose stay tack-sharp while the box front and background fall softly out of focus, keeping the 2:3 aspect ratio, tight vertical crop, and centered lower placement for a poster-cover composition.