{
  "taskId": "expansion-042",
  "slug": "pendant-single-swing-fixed-chain",
  "language": "zh",
  "mode": "image-to-video",
  "modelId": "MiniMax-H3",
  "evidenceClass": "original-practice-method-not-model-tested",
  "input": {
    "path": "/learning-assets/pseo-expansion70-20261014/pendant-single-swing-fixed-chain/first-frame.png",
    "editableSource": "/learning-assets/pseo-expansion70-20261014/pendant-single-swing-fixed-chain/first-frame.svg",
    "role": "first_frame",
    "sourceType": "original-illustration"
  },
  "intent": {
    "cluster": "Historical image reference and motion prompt family",
    "historicalQueries": [
      "minimax h3 image to video",
      "minimax h3 reference images",
      "minimax h3提示词模板"
    ],
    "evidenceRef": "docs/research/pseo-keyword-gap-2026-10-05/evidence/bing-live-keywords.csv",
    "distinctValue": "One small pendant sway with a continuous chain through the bail, stationary suspension points and one visible turning point; distinguishes pendant motion from chain breakage.",
    "existingOwnerBoundary": [
      {
        "path": "/blog/product-shape-consistency-video",
        "difference": "The broad product article discusses shape; this package offers an original suspended pendant and a chain-to-bail continuity test during one limited sway."
      },
      {
        "path": "/blog/image-to-video-motion-prompts",
        "difference": "The general first-frame tutorial explains motion wording; this task fixes two chain anchors and checks a single pendant reversal."
      }
    ],
    "demandClass": "historical-parent-query; exact long-tail demand unmeasured"
  },
  "title": "吊坠小幅摆动：链条连接不断开",
  "description": "上方悬挂点固定，只让吊坠轻摆一次。配套练习检查吊环连接、链条连续性和唯一一次转向点。",
  "goal": "要求吊坠完成一次小幅侧摆并停稳。原创珠宝插画用于练习，不声称执行过H3生成，也不代表经过标定的摆锤运动。",
  "preparation": [
    "选择能看清吊环和两侧链条的输入。插画使用素色背景，便于观察连接断裂。",
    "构图保留上方悬挂点；链条从画边消失的图片无法证明悬挂点是否固定。",
    "首轮选择顶部连接清楚的简单吊坠，不把宝石闪烁、链条扭转和机位环绕同时加入。",
    "目标设为向一侧摆出，再回到中心附近。这是视觉动作简报，不规定周期、张力或阻尼计算。"
  ],
  "prompt": "从上传的悬挂吊坠图开始。上方两个链条悬挂点固定，摄影机静止。吊坠与相连的下段链条轻轻向右摆动一次，到达清楚的转向点，然后返回中心附近并停稳。全过程链条连续穿过吊坠吊环。吊环始终连接吊坠同一处顶部边缘，零件不分离，也不互相穿过。保持吊坠轮廓和链条粗细。背景与灯光固定。只做一次克制的摆动，不反复摇摆，不自转，不增加首饰。",
  "steps": [
    {
      "title": "追踪完整连接路线",
      "body": "沿一侧上方悬挂点，经吊环再到另一侧，检查起始图是否存在连续路线。装饰线经过吊坠表面，不能代替真实可见的连接关系。"
    },
    {
      "title": "设定小幅摆出",
      "body": "只要求向右轻摆、一个转向点、再回中心附近。固定机位，便于在没有视角干扰时判断链条关系。"
    },
    {
      "title": "重点看转向瞬间",
      "body": "最右位置暂停，吊环仍应位于吊坠同一顶部边缘，两侧链条平顺相连，不能互换、断开或拉成硬杆。"
    },
    {
      "title": "以停稳后的关系收尾",
      "body": "对比起始与结尾的吊坠轮廓和链条粗细。重复摆动或连接失败时，先改摆出幅度，再考虑材质和闪光。"
    }
  ],
  "acceptance": [
    "上方两个链条悬挂点在画面中固定。",
    "链条连续可见地经过吊环。",
    "吊环始终连接吊坠同一顶部边缘。",
    "只出现一次清楚的向右转向点，没有多次来回。",
    "吊坠没有自转露出凭空生成的背面。",
    "链条没有穿过吊坠，也没有变成粗硬杆。",
    "结尾在中心附近停稳，原有吊坠轮廓完整。"
  ],
  "troubleshooting": [
    {
      "symptom": "链条在吊环处断开",
      "change": "只缩小摆动幅度，重试时对照同一个转向位置的吊环区域。"
    },
    {
      "symptom": "上方悬挂点跟着移动",
      "change": "只把上方两个悬挂点明确写成固定职责，保留机位和灯光要求。"
    },
    {
      "symptom": "吊坠开始自转",
      "change": "只去掉旋转措辞，写成可见平面内的小幅侧摆，再检查正面是否持续可见。"
    },
    {
      "symptom": "不断循环摇摆",
      "change": "只修改结尾，写成第一次转向后回到中心附近停稳，去掉循环要求。"
    }
  ],
  "ending": "一次摆动结束停稳后收尾，保存起始、转向和结尾三张吊环区域对照，作为首饰视觉运动练习记录。",
  "assetCaption": "原创悬挂吊坠插画，链条与吊环清楚可见；干净输入没有动作箭头，也不代表生成成片。"
}