专注计时器计算器 - 番茄钟与生产力计时器
使用科学验证的生产力方法（如番茄工作法、Flowmodoro 和 52/17 规则）计算最佳专注和休息时间。
25:00
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Pomodoro Technique
25 minutes focus + 5 minutes break. After 4 cycles, take 15-30 minutes. Best for: General tasks, studying, avoiding burnout.
Flowmodoro
Track actual focus time, then take 20% as break time. Best for: Deep work, creative tasks, when you lose track of time.
52/17 Rule
52 minutes focus + 17 minutes break. Research-backed ratio for maximum productivity. Best for: Deep work, complex tasks.