"Merry Christmas" 是带有小铭牌的珂赛特风圣诞壁纸。顶部中央奶油色花边铭牌上是暗红色手写体文字，四角点缀粉色缎带蝴蝶结、松枝和红色浆果，右下角有一棵挂着装饰球的小圣诞树。中间大片奶油色留白，可替换问候语，或加入姓名和简短留言。

Create a finished 16:9 landscape video-call background: an airy cream room viewed straight-on, composed to frame a person on camera. Keep the central 55% of the image visually clear and low-detail, with an uninterrupted pale cream wall and no text or objects behind the caller. Arrange delicate coquette Christmas decorations around the outer edges: a few soft pink satin bows tied to the wall near the upper corners and trailing lightly down the sides, tiny pearl accents, and a restrained scalloped cream wall frame. Place one small, simple sage-green Christmas tree near the lower-right edge, decorated with only a few blush ornaments and a small bow. Add one petite cream sign near the upper centre, outside the clear central area, bearing exactly the words “Merry Christmas”. Set the sign text in delicate high-contrast romantic serif lettering with fine hairline serifs, graceful swash terminals, a subtle pearly satin sheen, and tiny ribbon bows woven into a couple of letter strokes; keep the words crisp and readable at video-call size. Cream linen-like wall and card surfaces, blush pink satin with soft highlights and faint shadows, a few deep cherry-red accents only. Soft, diffused daylight, gentle shadows beneath the bows, warm and welcoming but uncluttered. No people, no furniture blocking the centre, no additional text, no watermark.