复古蓝图风基建大桥海报

{
  "type": "纵向基础设施旅行海报 / 工程线条插画",
  "style": "米色复古纸张背景搭配单色蓝墨水，精确建筑工程制图，细腻排线，蓝图式轮廓线，极简复古海报设计，干净边距与细边框",
  "format": {
    "aspect_ratio": "2:3 纵向海报",
    "color_palette": "仅限米白纸张与深柔和蓝色"
  },
  "headline": {
    "text": "[INFRASTRUCTURE]",
    "position": "顶部",
    "style": "超大宽间距无衬线大写英文字母"
  },
  "subheadings": {
    "count": 3,
    "items": [
      {
        "text": "连接 · 流动 · 未来   CONNECTING · FLOWING · FUTURE",
        "position": "主标题下方左侧"
      },
      {
        "text": "中国  CHINA",
        "position": "左上角"
      },
      {
        "text": "交通设施之美 / THE BEAUTY OF TRANSPORTATION",
        "position": "右上角，紧邻小桥梁图标"
      }
    ]
  },
  "main_scene": {
    "location": "[中国沿海海湾]",
    "subject": "水面上宏伟壮观的跨海高速公路立交桥与互通枢纽",
    "composition": "俯瞰高视角，前景为多层弯曲盘旋的桥梁匝道，长桥向远方海岛与群山延展，开阔天空中有飞鸟",
    "details": "细长桥墩倒映在平静水面，防撞护栏、路灯、车道标线、小型游船、远方货轮、海岛、岸线群山，前景底部有树木灌木",
    "vehicles": "在高架道路上行驶的轿车、面包车及一辆巴士"
  },
  "road_signage": {
    "count": 5,
    "items": [
      {
        "description": "分3格板面的大型头顶蓝色指路标志牌",
        "position": "中下方",
        "labels": [
          "海滨路 / Haibin Rd. / 2 km",
          "跨海大桥 / Cross-Sea Bridge / 500 m",
          "机场 / Airport / 1 km"
        ]
      },
      {
        "description": "电子情报显示屏",
        "position": "指路标志右侧",
        "label": "安全出行 / 平安回家"
      },
      {
        "description": "圆形限速标志牌",
        "position": "右下侧",
        "label": "80"
      },
      {
        "description": "圆形车道或转向指示标牌",
        "position": "限速标牌下方",
        "label": "弧形弯道箭头符号"
      },
      {
        "description": "长方形区间测速警告牌",
        "position": "标志立柱最底部",
        "label": "区间测速 / 前方1km"
      }
    ]
  },
  "human_element": {
    "count": 1,
    "description": "前景左下角独立非机动车道或人行道上一位微小的骑行者"
  },
  "footer_text": {
    "text": "交通连接城市 / 通达美好生活 / CONNECTING CITIES / ENRICHING LIFE",
    "position": "左下角"
  },
  "rendering_instructions": "禁用写实全彩；完全采用暖白底色上的细腻蓝色钢笔建筑制图呈现。突出超大交通工程尺度、优雅桥梁弧度、严谨透视与清晰的双语海报排版，精准还原所有指定的中文与英文文字。"
}