节日促销主视觉横幅

生成一张 1024x1280 像素、4:5 竖版节日促销主视觉。暖米色到浅玫瑰粉背景，中央珠宝色调 3D 礼盒漂浮。左侧深酒红中文标题「节日礼遇」，副标题「精选好物限时优惠」。翡翠绿圆角按钮「立即选购」，角落品牌「Holiday Deals Are Here」。金色星星和雪花图案点缀，现代暖意和平易奢感。所有可见文字为简体中文，不出现英文促销词、真实电商平台标志、水印或乱码。

A 1440×600 px holiday season sale hero banner with a cheerful, contemporary aesthetic. Background: a soft gradient from blush pink at edges to warm cream at center. Center: a stylised 3D illustration of wrapped gift boxes in jewel tones (ruby red, emerald green, cobalt blue), tied with satin ribbon bows, floating at different depths with a gentle drop shadow, rendered in a soft subsurface scattering style. Left of the gifts: wide-serif bold headline in deep burgundy "Holiday Deals Are Here" on two lines, followed by a smaller italic line "Free shipping on orders over $50". Below: a rich emerald green rounded button with white text "Shop Now". Scattered gold star and snowflake motifs around the composition. Mood: festive joy, modern warmth, accessible luxury.