以下详细说明暂以英文提供。
Why the draw is fair
Winners are chosen with a Fisher–Yates shuffle, the textbook way to randomize a list: each name is swapped with a randomly selected position exactly once, which gives every ordering — and therefore every name — an equal chance of landing in the winner slots. No name is "due" and repeated draws do not wear grooves in the odds; each click is an independent, uniformly random draw from whatever list is currently in the box.
Running raffles people trust
Fairness is mostly process: paste the full list before anyone watches, say whether you will draw one winner or several, and use the remove option when second chances should not exist. The drawn-later tie-break is simple — need another winner, click again. For anything with real stakes, screenshot the list and the result, and consider having a neutral person press the button; transparency, not the algorithm, is what keeps a giveaway friendly.
中国本地参考
日常计算时值得知道的中国本地规则：
- 计量的单位习惯: 住房面积用平方米，土地常用亩（1 亩 ≈ 666.7 平方米）；里程用公里，油耗用 L/100km。
- 日期与数字格式: 日期写作 2026年10月13日（年-月-日）；大数习惯用万、亿（1 万 = 10,000，1 亿 = 100,000,000）。
- 法定节假日: 全年法定节假日 11 天，春节与国庆为长假；调休安排每年由国务院办公厅发布。
- 速度与限速: 高速公路最高限速 120 km/h，城市快速路多为 80 km/h，均以公里每小时计。
- 鞋服尺码: 鞋码用中国码（毫米制），服装常用 155/80A 这类身高围度组合，与欧美码不同。
数据核对：2026 年 10 月
常见问题
Can the same name win twice?
Not in a single click — each click draws distinct names. Across clicks a name can win again unless you tick "remove drawn names from the list", which deletes winners so every remaining name gets its turn.
How many names can the list hold?
Thousands. The shuffle is a single pass over the list, so even a whole classroom roster or a long giveaway entry list picks instantly. Keep one name per line, and duplicates in the list do get extra chances, exactly like extra raffle tickets.
Where do the names go after drawing?
Nowhere. The list lives only in the page while it is open — nothing is uploaded or saved, and closing the tab erases every entry.