{
  "reportType": "OUTLOOK",
  "payload": {
    "reportMetadata": {
      "reportVersionLabel": "2026 词汇展望报告",
      "learnerName": "李同学",
      "targetExamName": "雅思 6.5",
      "sprintPeriodLabel": "2026 春季冲刺",
      "authorName": "Ability Bot"
    },
    "readinessOverview": {
      "summary": "词汇能力进入提分窗口，适合围绕考纲和高频场景做集中突破。",
      "currentStage": "当前阶段：稳态提升",
      "keyInsight": "核心观察：阅读词汇优于写作输出，仍需补齐同义替换。",
      "readinessScore": 78
    },
    "syllabusMasteryChart": {
      "totalWordCount": 4200,
      "masteredWordCount": 3192,
      "unmasteredWordCount": 1008,
      "masteryPercent": 76,
      "summaryLabel": "考纲词汇掌握概览",
      "recommendation": "先补齐教育、科技和环境主题词，再做套题复盘。"
    },
    "pastPaperVocabularyChart": {
      "totalWordCount": 800,
      "unknownWordCountBeforeSprint": 180,
      "unknownWordCountAfterSprint": 120,
      "projectedScoreGainLabel": "预计提分 5-10 分",
      "recommendation": "每次精听后补 5 组同义替换并做口头复述。"
    },
    "highFrequencyVocabularyChart": {
      "basicCorePercent": 77,
      "highScorePercent": 62,
      "highlightLabel": "Common 高频词覆盖较广，但易混词记忆不牢。"
    },
    "vocabularyFrequencyBandChart": {
      "bars": [
        {"bandLabel": "2k 高频", "currentValue": 86, "priorityLabel": "优先学习", "themeColor": "#448aff"},
        {"bandLabel": "3k 高频", "currentValue": 78, "priorityLabel": "重点突破", "themeColor": "#4caf50"},
        {"bandLabel": "学术词", "currentValue": 62, "priorityLabel": "酌情学习", "themeColor": "#ff9800"}
      ]
    },
    "frequencyPlan": {
      "cards": [
        {"cadencePerWeek": 3, "scoreGainLabel": "+12 分", "winRatePercent": 78, "recommended": true, "badgeLabel": "推荐", "emphasisIcon": "③"},
        {"cadencePerWeek": 2, "scoreGainLabel": "+8 分", "winRatePercent": 61, "recommended": false, "badgeLabel": "稳妥", "emphasisIcon": "②"}
      ],
      "recommendationTitle": "💡建议策略",
      "recommendationSummary": "7 天提分冲刺优先保证高频词正确率，再逐步覆盖中频词。",
      "phaseSuggestions": [
        {"title": "考前半个月·核心突击期", "description": "围绕高频词建立记忆闭环。"},
        {"title": "考前一周·强化巩固期", "description": "结合真题错词做循环复盘。"}
      ]
    },
    "scoreImprovementCaseStudy": {
      "headline": "教育类阅读题案例",
      "learnerName": "李同学",
      "studyPeriodLabel": "考前半个月·核心突击期",
      "memorizedWordCount": 705,
      "examHitWordCount": 237,
      "hitRatePercent": 33.6,
      "baselineScoreLabel": "70 分以下",
      "finalScore": 89,
      "scoreGain": 19
    }
  }
}
