{
  "meta": {
    "title": "OPC 一人公司城市选址 · 核心 31 城八维数据（v4.0 子集）",
    "methodology": "八维加权量化评分体系 v4.0",
    "formula": "总分 = (D1×0.22 + D2×0.20 + D3×0.18 + D4×0.12 + D5×0.08 + D6×0.07 + D7×0.08 + D8×0.05) × 10",
    "weights": {
      "D1": 0.22,
      "D2": 0.2,
      "D3": 0.18,
      "D4": 0.12,
      "D5": 0.08,
      "D6": 0.07,
      "D7": 0.08,
      "D8": 0.05
    },
    "grade_bounds": {
      "S": [
        85,
        100
      ],
      "A": [
        75,
        84
      ],
      "B": [
        60,
        74
      ],
      "C": [
        45,
        59
      ],
      "D": [
        0,
        44
      ]
    },
    "source_of_truth": "opc_cities_all.json",
    "supersedes": "opc_cities_31.json@v2.0-六维（2026-08-21，总分口径 D1×0.25+…+D6×0.10）",
    "note": "本文件为核心 31 城的 v4.0 八维子集，与全站榜单口径一致；全量 103 城见 opc_cities_all.json。"
  },
  "cities": [
    {
      "city": "北京",
      "province": "北京",
      "region": "华北",
      "tier": "省会/直辖市",
      "gdp": 52073,
      "income": 96292,
      "d1": 10,
      "d2": 5,
      "d3": 10,
      "d4": 8,
      "d5": 10,
      "d6": 4,
      "d7": 7,
      "d8": 10,
      "total": 81.0,
      "grade": "A"
    },
    {
      "city": "成都",
      "province": "四川",
      "region": "西南",
      "tier": "省会/直辖市",
      "gdp": 23511,
      "income": 59000,
      "d1": 8,
      "d2": 7,
      "d3": 8,
      "d4": 9,
      "d5": 10,
      "d6": 7,
      "d7": 10,
      "d8": 9,
      "total": 82.2,
      "grade": "A"
    },
    {
      "city": "南京",
      "province": "江苏",
      "region": "华东",
      "tier": "省会/直辖市",
      "gdp": 19429,
      "income": 86320,
      "d1": 10,
      "d2": 6,
      "d3": 8,
      "d4": 8,
      "d5": 9,
      "d6": 6,
      "d7": 7,
      "d8": 9,
      "total": 79.5,
      "grade": "A"
    },
    {
      "city": "重庆",
      "province": "重庆",
      "region": "西南",
      "tier": "省会/直辖市",
      "gdp": 32193,
      "income": 49778,
      "d1": 9,
      "d2": 8,
      "d3": 6,
      "d4": 6,
      "d5": 10,
      "d6": 9,
      "d7": 7,
      "d8": 8,
      "total": 77.7,
      "grade": "A"
    },
    {
      "city": "武汉",
      "province": "湖北",
      "region": "华中",
      "tier": "省会/直辖市",
      "gdp": 22147,
      "income": 64346,
      "d1": 8,
      "d2": 8,
      "d3": 7,
      "d4": 7,
      "d5": 10,
      "d6": 8,
      "d7": 7,
      "d8": 9,
      "total": 78.3,
      "grade": "A"
    },
    {
      "city": "长沙",
      "province": "湖南",
      "region": "华中",
      "tier": "省会/直辖市",
      "gdp": 15738,
      "income": 69658,
      "d1": 8,
      "d2": 8,
      "d3": 7,
      "d4": 6,
      "d5": 9,
      "d6": 10,
      "d7": 7,
      "d8": 8,
      "total": 77.2,
      "grade": "A"
    },
    {
      "city": "广州",
      "province": "广东",
      "region": "华南",
      "tier": "省会/直辖市",
      "gdp": 32039,
      "income": 83436,
      "d1": 9,
      "d2": 6,
      "d3": 8,
      "d4": 9,
      "d5": 10,
      "d6": 5,
      "d7": 7,
      "d8": 9,
      "total": 78.6,
      "grade": "A"
    },
    {
      "city": "合肥",
      "province": "安徽",
      "region": "华东",
      "tier": "省会/直辖市",
      "gdp": 14210,
      "income": 65568,
      "d1": 8,
      "d2": 8,
      "d3": 7,
      "d4": 7,
      "d5": 9,
      "d6": 8,
      "d7": 4,
      "d8": 8,
      "total": 74.6,
      "grade": "B"
    },
    {
      "city": "上海",
      "province": "上海",
      "region": "华东",
      "tier": "省会/直辖市",
      "gdp": 56709,
      "income": 96842,
      "d1": 10,
      "d2": 4,
      "d3": 9,
      "d4": 9,
      "d5": 10,
      "d6": 3,
      "d7": 10,
      "d8": 10,
      "total": 80.1,
      "grade": "A"
    },
    {
      "city": "郑州",
      "province": "河南",
      "region": "华中",
      "tier": "省会/直辖市",
      "gdp": 15245,
      "income": 50494,
      "d1": 7,
      "d2": 8,
      "d3": 7,
      "d4": 7,
      "d5": 10,
      "d6": 8,
      "d7": 4,
      "d8": 7,
      "total": 72.7,
      "grade": "B"
    },
    {
      "city": "杭州",
      "province": "浙江",
      "region": "华东",
      "tier": "省会/直辖市",
      "gdp": 23011,
      "income": 86640,
      "d1": 10,
      "d2": 5,
      "d3": 7,
      "d4": 9,
      "d5": 9,
      "d6": 5,
      "d7": 7,
      "d8": 10,
      "total": 76.7,
      "grade": "A"
    },
    {
      "city": "西安",
      "province": "陕西",
      "region": "西北",
      "tier": "省会/直辖市",
      "gdp": 13903,
      "income": 53678,
      "d1": 7,
      "d2": 7,
      "d3": 7,
      "d4": 8,
      "d5": 10,
      "d6": 8,
      "d7": 4,
      "d8": 8,
      "total": 72.4,
      "grade": "B"
    },
    {
      "city": "昆明",
      "province": "云南",
      "region": "西南",
      "tier": "省会/直辖市",
      "gdp": 8637,
      "income": 57444,
      "d1": 7,
      "d2": 8,
      "d3": 7,
      "d4": 6,
      "d5": 9,
      "d6": 9,
      "d7": 2,
      "d8": 7,
      "total": 69.8,
      "grade": "B"
    },
    {
      "city": "沈阳",
      "province": "辽宁",
      "region": "东北",
      "tier": "省会/直辖市",
      "gdp": 9100,
      "income": 56117,
      "d1": 7,
      "d2": 7,
      "d3": 7,
      "d4": 9,
      "d5": 8,
      "d6": 8,
      "d7": 4,
      "d8": 7,
      "total": 71.5,
      "grade": "B"
    },
    {
      "city": "济南",
      "province": "山东",
      "region": "华东",
      "tier": "省会/直辖市",
      "gdp": 14210,
      "income": 68128,
      "d1": 8,
      "d2": 7,
      "d3": 7,
      "d4": 7,
      "d5": 9,
      "d6": 7,
      "d7": 7,
      "d8": 7,
      "total": 73.8,
      "grade": "B"
    },
    {
      "city": "贵阳",
      "province": "贵州",
      "region": "西南",
      "tier": "省会/直辖市",
      "gdp": 6038,
      "income": 50576,
      "d1": 6,
      "d2": 8,
      "d3": 7,
      "d4": 7,
      "d5": 8,
      "d6": 9,
      "d7": 5,
      "d8": 7,
      "total": 70.4,
      "grade": "B"
    },
    {
      "city": "呼和浩特",
      "province": "内蒙古",
      "region": "华北",
      "tier": "省会/直辖市",
      "gdp": 4278,
      "income": 61624,
      "d1": 7,
      "d2": 8,
      "d3": 7,
      "d4": 5,
      "d5": 7,
      "d6": 9,
      "d7": 5,
      "d8": 7,
      "total": 69.4,
      "grade": "B"
    },
    {
      "city": "石家庄",
      "province": "河北",
      "region": "华北",
      "tier": "省会/直辖市",
      "gdp": 8652,
      "income": 52559,
      "d1": 6,
      "d2": 8,
      "d3": 7,
      "d4": 5,
      "d5": 9,
      "d6": 9,
      "d7": 2,
      "d8": 7,
      "total": 66.4,
      "grade": "B"
    },
    {
      "city": "天津",
      "province": "天津",
      "region": "华北",
      "tier": "省会/直辖市",
      "gdp": 18540,
      "income": 60099,
      "d1": 8,
      "d2": 6,
      "d3": 7,
      "d4": 6,
      "d5": 9,
      "d6": 7,
      "d7": 7,
      "d8": 8,
      "total": 71.1,
      "grade": "B"
    },
    {
      "city": "长春",
      "province": "吉林",
      "region": "东北",
      "tier": "省会/直辖市",
      "gdp": 8006,
      "income": 42350,
      "d1": 5,
      "d2": 8,
      "d3": 7,
      "d4": 6,
      "d5": 9,
      "d6": 9,
      "d7": 2,
      "d8": 7,
      "total": 65.4,
      "grade": "B"
    },
    {
      "city": "太原",
      "province": "山西",
      "region": "华北",
      "tier": "省会/直辖市",
      "gdp": 5382,
      "income": 50000,
      "d1": 6,
      "d2": 8,
      "d3": 7,
      "d4": 5,
      "d5": 8,
      "d6": 8,
      "d7": 2,
      "d8": 7,
      "total": 64.9,
      "grade": "B"
    },
    {
      "city": "南昌",
      "province": "江西",
      "region": "华东",
      "tier": "省会/直辖市",
      "gdp": 8142,
      "income": 54500,
      "d1": 6,
      "d2": 8,
      "d3": 6,
      "d4": 5,
      "d5": 9,
      "d6": 9,
      "d7": 2,
      "d8": 7,
      "total": 64.6,
      "grade": "B"
    },
    {
      "city": "哈尔滨",
      "province": "黑龙江",
      "region": "东北",
      "tier": "省会/直辖市",
      "gdp": 6016,
      "income": 45784,
      "d1": 5,
      "d2": 8,
      "d3": 7,
      "d4": 6,
      "d5": 9,
      "d6": 8,
      "d7": 2,
      "d8": 7,
      "total": 64.7,
      "grade": "B"
    },
    {
      "city": "南宁",
      "province": "广西",
      "region": "华南",
      "tier": "省会/直辖市",
      "gdp": 6212,
      "income": 46381,
      "d1": 5,
      "d2": 8,
      "d3": 7,
      "d4": 6,
      "d5": 8,
      "d6": 9,
      "d7": 2,
      "d8": 7,
      "total": 64.6,
      "grade": "B"
    },
    {
      "city": "福州",
      "province": "福建",
      "region": "华东",
      "tier": "省会/直辖市",
      "gdp": 15112,
      "income": 63435,
      "d1": 7,
      "d2": 7,
      "d3": 6,
      "d4": 6,
      "d5": 8,
      "d6": 7,
      "d7": 2,
      "d8": 7,
      "total": 63.8,
      "grade": "B"
    },
    {
      "city": "兰州",
      "province": "甘肃",
      "region": "西北",
      "tier": "省会/直辖市",
      "gdp": 3904,
      "income": 52660,
      "d1": 6,
      "d2": 6,
      "d3": 7,
      "d4": 7,
      "d5": 7,
      "d6": 9,
      "d7": 2,
      "d8": 7,
      "total": 63.2,
      "grade": "B"
    },
    {
      "city": "海口",
      "province": "海南",
      "region": "华南",
      "tier": "省会/直辖市",
      "gdp": 2563,
      "income": 48132,
      "d1": 6,
      "d2": 7,
      "d3": 7,
      "d4": 6,
      "d5": 6,
      "d6": 8,
      "d7": 2,
      "d8": 7,
      "total": 62.5,
      "grade": "B"
    },
    {
      "city": "乌鲁木齐",
      "province": "新疆",
      "region": "西北",
      "tier": "省会/直辖市",
      "gdp": 4658,
      "income": 51779,
      "d1": 6,
      "d2": 5,
      "d3": 7,
      "d4": 6,
      "d5": 7,
      "d6": 9,
      "d7": 2,
      "d8": 7,
      "total": 60.0,
      "grade": "B"
    },
    {
      "city": "银川",
      "province": "宁夏",
      "region": "西北",
      "tier": "省会/直辖市",
      "gdp": 3034,
      "income": 49164,
      "d1": 6,
      "d2": 6,
      "d3": 4,
      "d4": 7,
      "d5": 7,
      "d6": 10,
      "d7": 2,
      "d8": 7,
      "total": 58.5,
      "grade": "C"
    },
    {
      "city": "西宁",
      "province": "青海",
      "region": "西北",
      "tier": "省会/直辖市",
      "gdp": 1915,
      "income": 45605,
      "d1": 5,
      "d2": 5,
      "d3": 7,
      "d4": 6,
      "d5": 6,
      "d6": 9,
      "d7": 2,
      "d8": 7,
      "total": 57.0,
      "grade": "C"
    },
    {
      "city": "拉萨",
      "province": "西藏",
      "region": "西南",
      "tier": "省会/直辖市",
      "gdp": 1091,
      "income": 54000,
      "d1": 6,
      "d2": 5,
      "d3": 6,
      "d4": 5,
      "d5": 5,
      "d6": 8,
      "d7": 2,
      "d8": 7,
      "total": 54.7,
      "grade": "C"
    }
  ]
}