{
  "version": 1,
  "video": {
    "file": "controlled_math_animation.mp4",
    "downloadFile": "controlled_math_animation.mp4",
    "duration": 35
  },
  "template": {
    "id": "midpoint_diamond",
    "name": "正方形中点菱形面积",
    "prompt": "生成一个精品动画"
  },
  "title": "正方形中点菱形面积",
  "segments": [
    {
      "start": 0,
      "end": 3,
      "text": "这题，五秒能看出来吗？"
    },
    {
      "start": 3,
      "end": 6,
      "text": "正方形边长10厘米。"
    },
    {
      "start": 6,
      "end": 10,
      "text": "连接四边中点，得到中间菱形。"
    },
    {
      "start": 10,
      "end": 15,
      "text": "两条对角线，都是10厘米。"
    },
    {
      "start": 15,
      "end": 22,
      "text": "阴影刚好占大正方形的一半。"
    },
    {
      "start": 22,
      "end": 28,
      "text": "大正方形面积，是100。"
    },
    {
      "start": 28,
      "end": 35,
      "text": "答案：50平方厘米。"
    }
  ]
}