{
  "updated": "2026-10-18",
  "note": "原创短文，贴近高考阅读篇幅与词汇密度，非真题原文。更新时按 高一试读→高二→高考冲刺 阶梯投放。",
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    "difficulty": "词汇与推断难度 1–5"
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      "title": "The Quiet Superpower of Walking",
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      "level": "高一试读",
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      "difficulty": 2,
      "depthStars": "★★☆☆☆",
      "diffStars": "★★☆☆☆",
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      "lead": "放学路上的十分钟，为什么往往比刷短视频更「值钱」？",
      "tags": [
        "习惯",
        "脑科学"
      ]
    },
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      "file": "session-02.html",
      "title": "Why Your Phone Feels Like a Tiny Stove",
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      "level": "高二",
      "depth": 3,
      "difficulty": 3,
      "depthStars": "★★★☆☆",
      "diffStars": "★★★☆☆",
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      "lead": "打完一局手机烫手？那是芯片在「加班」，也是一堂迷你物理课。",
      "tags": [
        "科技",
        "物理"
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      "id": "s03",
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      "title": "Earth's Quiet Tough Guys",
      "topic": "生物",
      "level": "高二",
      "depth": 3,
      "difficulty": 3,
      "depthStars": "★★★☆☆",
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        "生物",
        "STEM"
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      "id": "s04",
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      "title": "Debug Like a Lab Report",
      "topic": "编程思维",
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        "编程",
        "方法"
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      "title": "When Color Leaves the Reef",
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      "difficulty": 3,
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        "气候",
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      "title": "Why Lithium Rules the Pocket",
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      "title": "Clocks That Need Einstein",
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      "level": "高考冲刺",
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      "id": "s08",
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      "title": "The Invisible Dust We Drink",
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      "lead": "微塑料：小到看不见，却能进食物链——理科阅读里的「身边议题」。",
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        "环境",
        "化学"
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