生成前请先上传一张参考图片。

UPLOAD A REFERENCE IMAGE BEFORE GENERATING. MAIN PROMPT Create a dramatic vertical Art Deco travel poster featuring [CITY NAME] in the style of a 1930s luxury ocean-liner travel advertisement. Make the landmark immediately recognizable, monumental and collectible, with elegant geometric Deco styling. FORMAT LOCK Vertical 3:4 composition. Bold theatrical poster design. Strong diagonal movement from lower left to upper right. Upper third reserved for open sky, the pale cream disc and city name. STYLE TRANSFER Landmark-led composition: 70% recognizable architecture, 30% Art Deco stylization. Show the primary landmark from a dramatic low viewpoint, towering upward with converging perspective. Use streamlined monumental forms, geometric arcs, straight verticals, stepped details, speed lines and concentric rays. DETAIL & COLOR Primary landmarks: [ONE OR TWO LANDMARKS — describe their distinctive shape and appearance from below]. Secondary elements: [THREE TO FIVE SUPPORTING ELEMENTS, including a bridge, river, canal, road or shoreline creating diagonal movement]. Use [SIX TO EIGHT COOL DESATURATED COLOURS TUNED TO THE CITY], always with deep desaturated navy as the single shadow tone. Blues and teals dominate sky, water and shadows; warm colors only as restrained accents on illuminated planes. Flat printed color planes, museum-print desaturation, subtle even paper grain. COMPOSITION LOCK Place a pale cream disc behind the main landmark with clean radiating rays. Keep the disc cool and quiet, never sunset-like. At the upper centre, place only “[CITY NAME]” in uppercase geometric sans-serif with wide letter spacing and a single solid color. Preserve strong diagonal energy and monumental scale. STYLE 1930s luxury-line Art Deco travel poster, sophisticated geometric design, theatrical hard-edged lighting, flat ink printing, collectible museum-poster aesthetic, clean contemporary finish. NEGATIVE PROMPT Yellow, mustard, ochre, gold, amber, orange sky, warm sunset, warm overall cast, soft gradients, photorealism, 3D rendering, neon, cartoon style, fake aging, distressed paper, sepia, brown filters, clutter, extra text, incorrect spelling, additional typography, logos, watermark. TEXT LOCK Exact spelling: “[CITY NAME]”. No text other than the city name. ASPECT RATIO 3:4

生成前请先上传一张参考图片。 主提示词 创作一张极具戏剧性的竖版装饰艺术风格旅行海报，主题为[CITY NAME]，风格借鉴1930年代豪华远洋邮轮旅行广告。让地标一眼可辨、宏伟壮观且具有收藏感，配以优雅的几何装饰艺术造型。 格式锁定 竖版3:4构图。大胆的戏剧化海报设计。强烈的从左下到右上的对角线动势。上三分之一留作开阔天空、米白色圆盘以及城市名称。 风格迁移 以地标为主导的构图：70%可辨识的建筑，30%装饰艺术风格化。从戏剧化的低视角仰视主要地标，以汇聚透视向上高耸。使用流线型的纪念碑式造型、几何弧线、笔直的垂直线、阶梯式细节、速度线与同心射线。 细节与色彩 主要地标：[一座或两座地标——描述其从下往上看时的独特外形与外观]。次要元素：[三到五个辅助元素，包括桥梁、河流、运河、道路或海岸线，以营造对角线动势]。使用[六到八种针对该城市调校的冷调低饱和度颜色]，始终以深低饱和度的海军蓝作为唯一的阴影色调。蓝色与青色主导天空、水面与阴影；暖色仅作为受光面上的克制点缀。平面印刷色块、博物馆印刷级低饱和度、细腻均匀的纸纹。 构图锁定 在主要地标后方放置一个米白色圆盘，搭配干净清晰的放射状光线。保持圆盘色调冷静、静谧，绝不可呈现日落感。在上方居中位置仅放置“[CITY NAME]”，使用大写几何无衬线字体，字距加宽，并采用单一纯色。保持强烈的对角线能量与纪念碑式尺度。 风格 1930年代豪华邮轮装饰艺术旅行海报，精密的几何设计，戏剧化的硬边光影，平面油墨印刷，博物馆收藏级海报美感，干净现代的完成度。 负面提示词 黄色、芥末黄、赭石、金色、琥珀、橙色天空、暖色日落、整体偏暖、柔和渐变、照片写实、3D渲染、霓虹、卡通风格、伪造做旧、斑驳纸张、深褐色滤镜、杂乱、额外文字、拼写错误、额外字体、标志、水印。 文字锁定 准确拼写：“[CITY NAME]”。除城市名称外不出现任何其他文字。 宽高比 3:4