固定文字只探索布局，按实际数量验收

{
  "inputRows": [
    {
      "field": "event",
      "value": "周末手作夜"
    },
    {
      "field": "date",
      "value": "2026-11-07 19:00"
    },
    {
      "field": "price",
      "value": "¥68"
    },
    {
      "variantCount": 3,
      "creativeRange": "EXPLORE",
      "aspects": [
        "LAYOUT"
      ]
    }
  ],
  "referenceRows": [
    {
      "returnedScreens": "3 requested, actual must be read"
    },
    {
      "fixedText": [
        "周末手作夜",
        "2026-11-07 19:00",
        "¥68"
      ]
    },
    {
      "difference": "structure, not just hue"
    }
  ],
  "invalidRows": [
    {
      "variantCount": 20,
      "error": "outside 1..5"
    },
    {
      "aspects": [
        "TEXT_CONTENT"
      ],
      "error": "violates fixed content exercise"
    }
  ],
  "notes": [
    "全部输入为作者自制教学资料，不含真实客户或账号。",
    "referenceRows是校验基准，不是目标模型预测或识别结果；targetProduct=not_run。"
  ],
  "files": {
    "input.json": "[\n  {\n    \"field\": \"event\",\n    \"value\": \"周末手作夜\"\n  },\n  {\n    \"field\": \"date\",\n    \"value\": \"2026-11-07 19:00\"\n  },\n  {\n    \"field\": \"price\",\n    \"value\": \"¥68\"\n  },\n  {\n    \"variantCount\": 3,\n    \"creativeRange\": \"EXPLORE\",\n    \"aspects\": [\n      \"LAYOUT\"\n    ]\n  }\n]\n",
    "reference.json": "{\n  \"identity\": \"作者验收参考，非模型返回\",\n  \"rows\": [\n    {\n      \"returnedScreens\": \"3 requested, actual must be read\"\n    },\n    {\n      \"fixedText\": [\n        \"周末手作夜\",\n        \"2026-11-07 19:00\",\n        \"¥68\"\n      ]\n    },\n    {\n      \"difference\": \"structure, not just hue\"\n    }\n  ]\n}\n",
    "invalid.json": "{\n  \"identity\": \"作者构造负例，非实际错误回包\",\n  \"rows\": [\n    {\n      \"variantCount\": 20,\n      \"error\": \"outside 1..5\"\n    },\n    {\n      \"aspects\": [\n        \"TEXT_CONTENT\"\n      ],\n      \"error\": \"violates fixed content exercise\"\n    }\n  ]\n}\n",
    "case.md": "# Stitch设计变体：固定文字只探索布局，按实际数量验收\n\nStitch设计变体通过variantCount、creativeRange和aspects限定探索。本课固定活动文案与价格，只比较布局差异，避免把同页改三个颜色误判为三种结构方案。\n\n## 固定内容基线\n\n保存活动名称、日期、价格和CTA文本，作为所有变体共同输入。\n\n价格不可因设计探索被AI改写。\n\n## 选择一个探索方面\n\n在当前SDK将aspects限定为LAYOUT，creativeRange选择REFINE或EXPLORE。\n\n不同时开放TEXT_CONTENT和所有方面，否则很难隔离布局变化。\n\n## 设置变体数量\n\n将variantCount设为3，读取当前SDK允许的1到5范围。\n\n范围外数字作为本地参数负例，提交前先拦截。\n\n## 执行并登记实际返回\n\n调用variants并保存返回Screen数组。\n\n实际返回不足3个时记为未达标，不补复制截图充数。\n\n## 比较结构变化\n\n逐张记录主区和侧栏的位置、CTA顺序与信息分组。\n\n只有色彩差异而结构不变时，本课布局探索尚不成立。\n\n## 核对固定文本\n\n把标题、日期和价格逐项与基线比对。\n\n任何内容变化都单独提出，不用“设计更好看”替代内容正确。\n\n## 选择并保留未选方案\n\n写明选中理由，保存三套身份和截图。\n\n未选中方案不立即删除，便于回看选择依据。\n\n身份：输入与参考为作者材料；localCli有实测记录时仅证明对应CLI运行，目标云端与模型推理未执行。\n"
  }
}