✈️ 纸飞机Paper Plane
在线纸飞机：站在山坡上把折好的纸飞机扔出去，看它能滑翔多远。先调好投掷角度和力度，飞起来以后按住让机头抬起、松开让它下压，抬得太陡会失速掉下去。途中有黄色的上升气流能把飞机托高，每局扔三次取最远的一次。Paper Plane online: throw your folded plane from a hilltop and see how far it glides. Set the angle and power first; in the air, hold to raise the nose and let go to let it dip — pull up too steeply and it stalls. Yellow rising air along the way lifts the plane higher. Three throws a game, your best one counts.
投掷前 ↑↓ 调角度，空格 / 回车 / “投掷”扔出（或在画面上向后拉再松手）；飞行中按住空格、鼠标或“抬头”抬机头。P 暂停，N 重开。Before the throw ↑↓ sets the angle and Space / Enter / Throw lets go (or drag back on the picture and release); in flight hold Space, the mouse or Lift to raise the nose. P pauses, N restarts.
玩法说明与常见问题How to play & FAQ
「纸飞机」怎么玩？How do I play Paper Plane?
投掷时，力度条会来回涨落，角度可以用上下键调整；力度和角度合适，飞机才能飞得高又平稳。飞行中，按住让机头上扬可以把速度换成高度，松开机头下压又能把高度换回速度；如果抬得太久速度太低就会失速下坠。飞过黄色上升气流区时会被托高。飞机落地后记录距离，三次投掷里最远的一次是本局成绩。When throwing, the power bar rises and falls and the arrow keys change the angle; the right mix sends the plane high and steady. In flight, holding raises the nose and trades speed for height; letting go lets the nose drop and trades height back for speed. Hold too long and the plane slows into a stall and drops. Yellow rising air lifts the plane as it passes through. The distance is recorded on landing, and the best of three throws is your score.
什么角度最远？What angle goes furthest?
大约 15°～25° 的平缓角度配合中等偏大的力度最稳；角度太大容易一出手就失速。A gentle 15–25° with medium-to-strong power is the most reliable; steep throws tend to stall right away.
飞行中怎么操作最远？How should I fly for distance?
保持机头微微下压积累速度，速度够了再轻轻点按抬头，像波浪一样起伏飞行，经过上升气流时多抬一下。Keep the nose slightly down to build speed, then tap to lift gently, flying in shallow waves, and pull up a little more inside rising air.
「纸飞机」免费吗？需要下载吗？Is Paper Plane free? Do I need to download anything?
完全免费，无需注册、下载或安装，打开网页就能玩，手机、平板和电脑都支持；游戏完全在你的浏览器本地运行，不会上传任何数据。It is completely free with no sign-up, download or install — just open the page on a phone, tablet or computer. The game runs entirely in your browser and nothing is uploaded.