"Holiday Book Sale · Buy 2, Get 1 Free" 是一张复古风格的书店节日促销海报。奶油色纸面上是带红色阴影的深绿色字体，下方是木质书架，摆着红、绿、蓝色的书、一盏黄铜台灯和常青树枝。你可以替换标题、优惠内容、日期、店名和地址，制作自己的促销海报。

Create a finished, print-ready 3:4 Christmas bookshop sale poster with a warm, cozy illustrated look. Keep all lettering and key artwork comfortably inside an 8% safe margin. Use a rich cream paper background with subtle paper grain, deep evergreen and cranberry accents, and restrained antique-gold details. The scene is a charming hand-painted bookshop shelf: warmly lit rows of colorful hardbacks, a few leaning books, and a small evergreen sprig with gold berries. Let the shelves form a clear central illustration, not a cluttered wall of decorations. No people, no snow, no extra Christmas motifs, no legible writing on book spines, and no other text anywhere. At the top, set the exact headline “Holiday Book Sale · Buy 2, Get 1 Free” as the dominant element, large and immediately readable at thumbnail size. Break it into balanced lines while preserving every word, punctuation mark, and capitalization exactly. Use custom bookish lettering: bold, gently condensed upright serif capitals and lowercase with sturdy bracketed serifs, rounded joins, moderate stroke contrast, and open counters; warm cream letter faces with a fine dark evergreen outline and a restrained cranberry offset shadow. Keep the text crisp and clean, never warped or obscured. Below the illustrated shelves, set three centered, clearly separated detail lines in this exact order and wording: “December 5–20”; “Willow & Page Books”; “12 Main Street”. Use legible smaller lettering in dark evergreen, with the shop name slightly more prominent than the date and address. Maintain generous spacing and strong contrast so the details can be read from across a room. Compose in a clear top-to-bottom reading order: headline, cozy shelf illustration, then grouped details. Keep the overall design festive, welcoming, polished, and uncluttered.