复古极简矢量城市旅行插画海报

{
  "input": {
    "city_name": "{{CITY NAME}}"
  },
  "generation": {
    "type": "premium_illustrated_travel_poster",
    "aspect_ratio": "3:4",
    "orientation": "portrait",
    "resolution": "high",
    "reference_mode": "use_uploaded_images_for_style_reference_only",
    "city_adaptation": "fully_automatic"
  },
  "creative_direction": {
    "objective": "Create a beautifully composed, destination-specific illustrated travel poster that resembles a premium vintage European travel print with crisp modern vector artwork. Every generated image must feel like an authentic visual postcard of the specified city.",
    "art_style": {
      "primary": "refined_flat_vector_illustration",
      "secondary": "mid_century_travel_poster",
      "influences": [
        "classic European tourism posters",
        "Japanese illustrated travel prints",
        "modern editorial vector artwork",
        "minimalist architectural illustration"
      ],
      "rendering": "clean geometric shapes, precise architectural outlines, layered silhouettes, controlled shading, subtle tonal gradients, carefully simplified details",
      "texture": "smooth matte printed-paper appearance with extremely subtle print texture",
      "realism_level": "stylized illustration with recognizable architectural accuracy",
      "avoid": [
        "photorealism",
        "3D rendering",
        "watercolor effects",
        "rough sketching",
        "childish cartoon styling",
        "excessive gradients",
        "plastic-looking surfaces",
        "generic AI artwork"
      ]
    },
    "destination_intelligence": {
      "instruction": "Identify the actual city, its country, and its most recognizable visual landmarks. Build the composition around a carefully selected combination of authentic architecture, local scenery, transportation, public spaces, and cultural elements.",
      "landmarks": "Select 2 to 4 recognizable landmarks or architectural features associated with the specified city.",
      "architecture": "Reproduce the city's characteristic architectural styles, rooflines, facades, towers, monuments, and urban structures.",
      "natural_environment": "Include locally appropriate mountains, rivers, lakes, coastlines, gardens, trees, or other landscape elements when relevant.",
      "transportation": "Add a locally recognizable train, tram, bus, boat, bicycle, or other transportation element only when appropriate.",
      "cultural_details": "Include subtle, authentic local details such as street lamps, traditional storefronts, bridges, signage, or regional vegetation.",
      "accuracy_rule": "Do not invent landmarks or combine unrelated cities. All recognizable locations and cultural details must correspond to the requested destination.",
      "fallback": "If a city has limited internationally recognizable landmarks, create an authentic composition using its actual architecture, urban character, and regional landscape."
    },
    "composition": {
      "layout": "large illustrated cityscape in the upper portion, destination typography in a separate lower section",
      "main_illustration": {
        "coverage": "approximately 78 to 83 percent of the canvas height",
        "framing": "a carefully composed, almost rectangular scenic illustration with clean edges",
        "perspective": "slightly elevated or street-level architectural perspective chosen to best showcase the destination",
        "depth_layers": [
          "foreground with flowers, trees, benches, railings, steps, pedestrians, or waterfront details",
          "middle ground with streets, bridges, public spaces, transport, and prominent architecture",
          "background with the city's skyline, secondary landmarks, and natural landscape"
        ],
        "visual_hierarchy": "one dominant landmark supported by complementary architectural elements",
        "spacing": "balanced, intentional, and visually rich without overcrowding",
        "human_figures": "small, elegantly simplified pedestrians used sparingly to establish scale",
        "sky": "clean pale sky with a few minimal stylized clouds or birds when appropriate"
      },
      "foreground_details": {
        "instruction": "Select destination-appropriate details that frame the scene naturally without obscuring its important landmarks.",
        "density": "moderate",
        "rule": "Avoid forcing flowers, boats, trees, or other elements into cities where they would look geographically or compositionally unnatural."
      },
      "background": {
        "color": "warm white or very pale ivory",
        "style": "minimal, uncluttered, print-ready",
        "negative_space": "generous space surrounding the illustration and destination typography"
      }
    },
    "color_palette": {
      "primary": [
        "deep navy blue",
        "cobalt blue",
        "sky blue",
        "warm ivory",
        "soft cream"
      ],
      "secondary": [
        "muted forest green",
        "sage green",
        "warm architectural beige",
        "terracotta",
        "soft grey"
      ],
      "adaptation": "Adjust accent colors to complement the city's architecture, national character, and natural surroundings.",
      "contrast": "clear and harmonious with strong separation between architectural layers",
      "saturation": "moderate, elegant, and print-friendly",
      "lighting": "bright, soft daylight with minimal hard shadows"
    },
    "typography": {
      "placement": "centered beneath the illustration",
      "city_name": {
        "text": "{{CITY NAME IN UPPERCASE}}",
        "font_style": "large, elegant, geometric sans-serif",
        "weight": "regular to medium",
        "letter_spacing": "very wide",
        "alignment": "center",
        "color": "deep navy blue",
        "importance": "primary visual anchor of the lower section"
      },
      "country_name": {
        "text": "Automatically identify the correct country and display its name in uppercase",
        "font_style": "small, clean sans-serif",
        "letter_spacing": "wide",
        "alignment": "center",
        "color": "muted navy or a restrained destination-appropriate accent",
        "position": "directly below the city name"
      },
      "decorative_elements": {
        "horizontal_lines": "thin symmetrical horizontal lines on either side of the country name when visually appropriate",
        "national_emblem": "Optional small, accurate national symbol beneath the typography only when suitable",
        "rule": "Keep typography minimal, legible, accurately spelled, and free of additional promotional copy."
      }
    },
    "image_quality": {
      "edges": "crisp and clean",
      "architecture": "recognizable, coherent, and carefully detailed",
      "shapes": "precise geometric silhouettes",
      "print_quality": "premium travel-poster finish",
      "composition_quality": "professional graphic-design balance",
      "text_quality": "correct city and country spelling",
      "final_appearance": "a sophisticated collectible illustrated travel poster suitable for high-quality social media publishing"
    }
  },
  "strict_rules": {
    "preserve_reference_style": true,
    "change_destination_automatically": true,
    "use_real_city_landmarks": true,
    "use_correct_country_name": true,
    "keep_illustration_above_typography": true,
    "maintain_clean_ivory_background": true,
    "maintain_wide_letter_spacing": true,
    "keep_composition_balanced": true,
    "no_unrequested_text": true,
    "no_watermarks": true,
    "no_borders_unless_integral_to_design": true,
    "no_photographic_rendering": true,
    "no_unrelated_landmarks": true,
    "no_misspelled_text": true
  },
  "negative_prompt": [
    "photorealistic photography",
    "3D CGI",
    "anime",
    "childlike cartoon",
    "watercolor painting",
    "oil painting",
    "messy sketch lines",
    "overly textured paper",
    "dark dramatic lighting",
    "neon colors",
    "cluttered composition",
    "distorted buildings",
    "incorrect landmarks",
    "geographically inconsistent scenery",
    "unreadable typography",
    "misspelled city name",
    "incorrect country name",
    "random letters",
    "excessive text",
    "watermarks",
    "logos",
    "cropped landmarks",
    "unbalanced typography",
    "photographic cutouts"
  ]
}

{
  "input": {
    "city_name": "{{城市名称}}"
  },
  "generation": {
    "type": "高级插画旅行海报",
    "aspect_ratio": "3:4",
    "orientation": "纵向",
    "resolution": "高",
    "reference_mode": "仅使用上传的图像作为风格参考",
    "city_adaptation": "全自动"
  },
  "creative_direction": {
    "objective": "创建一个构图精美、针对特定目的地的插画旅行海报，风格类似于带有清爽现代矢量艺术的高级复古欧洲旅行印刷品。生成的每一张图像必须感觉像是指定城市的真实视觉明信片。",
    "art_style": {
      "primary": "精致扁平矢量插画",
      "secondary": "中世纪现代旅行海报",
      "influences": [
        "经典欧洲旅游海报",
        "日本插画旅行印刷品",
        "现代编辑矢量艺术作品",
        "极简主义建筑插画"
      ],
      "rendering": "干净的几何形状、精确的建筑轮廓、分层剪影、受控的阴影、微妙的色调渐变、精心简化的细节",
      "texture": "带有极细微印刷纹理的光滑哑光印制纸张外观",
      "realism_level": "具有可辨认建筑准确性的风格化插画",
      "avoid": [
        "写实摄影",
        "3D 渲染",
        "水彩效果",
        "粗糙素描",
        "幼稚的卡通风格",
        "过度的渐变",
        "塑料感表面",
        "通用的 AI 艺术品"
      ]
    },
    "destination_intelligence": {
      "instruction": "识别实际的城市、所属国家及其最著名的视觉地标。围绕精心挑选的真实建筑、当地风景、交通、公共空间和文化元素的组合进行构图。",
      "landmarks": "选择 2 到 4 个与指定城市相关的可识别地标或建筑特征。",
      "architecture": "再现该城市的特色建筑风格、屋顶轮廓、外立面、塔楼、纪念碑和城市结构。",
      "natural_environment": "在相关时，包含当地适宜的山脉、河流、湖泊、海岸线、花园、树木或其他景观元素。",
      "transportation": "仅在适宜时，添加当地可识别的火车、电车、巴士、船只、自行车或其他交通元素。",
      "cultural_details": "包含微妙、真实的当地细节，如路灯、传统店面、桥梁、标牌或区域植被。",
      "accuracy_rule": "不要虚构地标或合并无关的城市。所有可识别的地点和文化细节必须与请求的目的地相对应。",
      "fallback": "如果一个城市的国际知名地标有限，请使用其实际建筑、城市特色和区域景观创建真实的构图。"
    },
    "composition": {
      "layout": "上方为大型插画城市景观，下方独立部分为目的地排版",
      "main_illustration": {
        "coverage": "约占画布高度的 78% 到 83%",
        "framing": "构图精美、几乎为矩形的风景插画，边缘整洁",
        "perspective": "选择最能展示目的地的略微抬高或街道层级的建筑透视",
        "depth_layers": [
          "前景包含花卉、树木、长椅、栏杆、台阶、行人或滨水细节",
          "中景包含街道、桥梁、公共空间、交通工具和突出的建筑",
          "背景包含城市天际线、次要地标和自然景观"
        ],
        "visual_hierarchy": "一个主导地标辅以互补的建筑元素",
        "spacing": "平衡、有意图且视觉丰富而不拥挤",
        "human_figures": "少量使用优雅简化的微型行人以确立比例感",
        "sky": "洁净的浅色天空，适当时带有少量极简风格的云朵或鸟类"
      },
      "foreground_details": {
        "instruction": "选择适合目的地的细节，自然地构建场景框架而不遮挡其重要地标。",
        "density": "中等",
        "rule": "避免在地理上或构图上看起来不自然的城市中强行加入花卉、船只、树木或其他元素。"
      },
      "background": {
        "color": "暖白色或极浅的象牙色",
        "style": "极简、整洁、适合印刷",
        "negative_space": "插画和目的地排版周围留有充足的空间"
      }
    },
    "color_palette": {
      "primary": [
        "深海军蓝",
        "钴蓝色",
        "天蓝色",
        "暖象牙色",
        "柔和奶油色"
      ],
      "secondary": [
        "柔和森林绿",
        "鼠尾草绿",
        "温暖的建筑米色",
        "赤陶色",
        "柔和灰色"
      ],
      "adaptation": "调整装饰色以补充城市的建筑、民族特色和自然环境。",
      "contrast": "清晰和谐，建筑层级之间有强烈的区分",
      "saturation": "适度、优雅且适合印刷",
      "lighting": "明亮、柔和的日光，带有极少的硬阴影"
    },
    "typography": {
      "placement": "居中于插画下方",
      "city_name": {
        "text": "{{大写形式的城市名称}}",
        "font_style": "大型、优雅、几何无衬线体",
        "weight": "常规到中等",
        "letter_spacing": "非常宽",
        "alignment": "居中",
        "color": "深海军蓝",
        "importance": "下方部分的主要视觉锚点"
      },
      "country_name": {
        "text": "自动识别正确的国家并以大写形式显示其名称",
        "font_style": "小型、整洁的无衬线体",
        "letter_spacing": "宽",
        "alignment": "居中",
        "color": "柔和海军蓝或克制且适合目的地的装饰色",
        "position": "直接位于城市名称下方"
      },
      "decorative_elements": {
        "horizontal_lines": "在视觉合适时，在国家名称两侧添加细长的对称水平线",
        "national_emblem": "仅在适宜时，在排版下方添加可选的小型、准确的国家符号",
        "rule": "保持排版极简、易读、拼写准确，且不含额外的促销文案。"
      }
    },
    "image_quality": {
      "edges": "清爽整洁",
      "architecture": "可辨认、连贯且细节周密",
      "shapes": "精确的几何剪影",
      "print_quality": "高级旅行海报饰面",
      "composition_quality": "专业的平面设计平衡感",
      "text_quality": "正确的城市和国家拼写",
      "final_appearance": "一张精致的、值得收藏的插画旅行海报，适用于高质量社交媒体发布"
    }
  },
  "strict_rules": {
    "preserve_reference_style": true,
    "change_destination_automatically": true,
    "use_real_city_landmarks": true,
    "use_correct_country_name": true,
    "keep_illustration_above_typography": true,
    "maintain_clean_ivory_background": true,
    "maintain_wide_letter_spacing": true,
    "keep_composition_balanced": true,
    "no_unrequested_text": true,
    "no_watermarks": true,
    "no_borders_unless_integral_to_design": true,
    "no_photographic_rendering": true,
    "no_unrelated_landmarks": true,
    "no_misspelled_text": true
  },
  "negative_prompt": [
    "写实摄影",
    "3D CGI",
    "动漫",
    "幼稚卡通",
    "水彩画",
    "油画",
    "凌乱的素描线条",
    "纹理过重的纸张",
    "阴暗戏剧性的光线",
    "霓虹色",
    "杂乱的构图",
    "扭曲的建筑物",
    "不正确的地标",
    "地理不一致的风景",
    "难以辨认的排版",
    "拼写错误的城市名称",
    "错误的国家名称",
    "随机字母",
    "过多的文本",
    "水印",
    "徽标",
    "被裁剪的地标",
    "不平衡的排版",
    "摄影抠图"
  ]
}