Generate a visual mockup for the product detail page of an electric functional sofa, based on the reference image.
The background is mist gray, accented with caramel brown. At the top, a bold black Chinese headline reads: “Lie Down Anytime, Customize Your Comfort.” A small rounded‑corner upgrade badge is placed in the upper right corner. The main layout employs an irregular grid of information cards: a large horizontal card showcases a deep chocolate‑colored quilted leather three‑seater electric sofa, followed by four square cards highlighting features such as the extendable footrest, soft backrest, wall‑flush placement, and armrest control area. Each card includes only one concise Chinese headline and a single line of description. At the bottom, two smooth linear icons indicate “Electric Adjustment” and “Voice Control.” The sofa retains dark leather upholstery, button‑tufted detailing, generously padded armrests, and select metal control buttons; no brand names, logos, slogans, or decorative text appear on the product surface.
Output dimensions: 750 x 1500px. Avoid text misalignment, overlap, overflow, noticeable shadows, jagged icons, irrelevant small text, and visible web page borders.
