{ "input": { "city_name": "{{USER_INPUT_CITY}}" }, "reference_style": { "use_uploaded_reference_images": true, "reference_images_define": ["整体构图", "手工丝网印刷美学", "大胆的黑色图形剪影", "有限的色彩配置", "复古旅行海报特质", "粗糙的墨水质感", "略带不完美的手工边缘", "超大城市字体", "分层的地标排列", "底部交通元素", "米色/米白纸质背景", "极简编辑式构图"], "do_not_copy": ["特定地标", "特定城市名称", "特定车辆", "特定色彩组合", "精确的字体排列", "精确的地标位置"] }, "generation": { "type": "复古城市旅行海报", "aspect_ratio": "3:4", "resolution": "高", "orientation": "竖版", "city_adaptation": { "primary_rule": "一切都必须围绕用户的 city_name 重新设计。", "identify_city": true, "research_visual_identity": true, "landmarks": {"count": "4-7", "selection": "自动选出指定城市最具辨识度且视觉上最鲜明的地标。", "prioritize": ["主要地标", "历史建筑", "现代建筑地标", "宗教或文化地标", "桥梁或纪念碑", "可辨识的天际线元素"], "rendering": "将每个地标转为简化的大胆黑色丝网印刷剪影，同时保留其可辨识的建筑特征。"}, "transportation": {"automatically_select": true, "instruction": "选择与指定城市强烈相关的交通工具，例如出租车、有轨电车、公交车、地铁、嘟嘟车、缆车、人力车、经典老爷车、渡轮或其他标志性的当地交通。", "placement": "沿底部边缘的大型前景元素", "style": "简化的复古丝网印刷插画"}, "colors": {"automatically_adapt": true, "instruction": "选择一组克制的 2-4 色配色，灵感取自城市的视觉识别、当地交通、旗帜、建筑或文化色彩。", "black": "主导的图形墨色", "background": "温暖陈旧的米色纸", "accent_colors": "城市专属且低调，绝不过度饱和"}, "typography": {"text": "{{USER_INPUT_CITY}}", "case": "大写", "style": "大型粗体不规则压缩展示字体", "placement": "显著地融入地标之间或后方", "texture": "粗糙的印刷墨水", "alignment": "略带不完美且有机", "rule": "城市名称必须拼写完美且清晰可读。"}, "secondary_text": {"enabled": false, "instruction": "不要加入任意的标语、日期、旅游短语、描述或额外可读文字。"}, "local_details": {"automatically_adapt": true, "instruction": "加入细微的视觉细节，立即强化指定城市的识别度，同时不使构图过于拥挤。"} }, "composition": {"layout": "编辑式复古旅行海报", "landmarks": "围绕字体动态排列", "typography": "大型中央视觉锚点", "foreground": "一个标志性的城市交通元素", "depth": "平面图形分层、最小重叠", "negative_space": "充裕的米色留白", "balance": "不对称但视觉平衡", "cropping": "允许选定的地标或交通自然延伸至边缘"}, "art_direction": {"medium": "手工丝网印刷 / 受版画启发的旅行海报", "visual_language": ["大胆剪影", "平面形状", "粗糙墨水边缘", "可见的印刷颗粒", "细微的墨水磨损", "轻微的套版不准", "手工不完美", "图形编辑设计", "中世纪旅行海报影响"], "linework": "强烈、粗厚且简化", "texture": "真实的纸张颗粒与不均匀的墨水覆盖", "finish": "实体印刷作品而非数字完美的矢量艺术"}, "background": {"color": "温暖象牙白 / 陈旧米色", "texture": "细微的天然纸纤维", "pattern": "无", "gradient": false}, "quality": {"photorealism": false, "vector_perfection": false, "digital_gloss": false, "clean_modern_ui": false, "high_detail": true, "print_ready_appearance": true} }, "constraints": { "user_controls_only": ["city_name"], "model_controls": ["地标选择", "地标排列", "交通", "色彩配置", "当地视觉细节", "字体构图", "图形层次"], "must_have": ["正确的城市名称", "该城市可辨识的地标", "城市专属的交通或移动元素", "温暖的米色纸质背景", "大胆的黑色丝网印刷形态", "大型城市字体", "复古手工印刷质感", "一致的旅行海报构图"], "avoid": ["其他城市的地标", "通用建筑", "通用旅游图像", "照片写实渲染", "3D 渲染", "光泽渐变", "霓虹色", "现代企业海报设计", "随机文字", "拼错的城市名称", "多余标语", "水印", "标志", "AI 瑕疵", "过度干净的矢量边缘"] }, "output_instruction": "创作一张完成的复古丝网印刷旅行海报，代表 {{USER_INPUT_CITY}}。保留所提供参考的艺术语言与视觉克制，但完全重新设计地标、交通、点缀色彩与当地细节，使其真实地属于指定城市。" }