Splitwater
Prompt
A watch app for recording pool workouts (design each screen at 198×242 without drawing a watch case or strap), with an English interface: lengths, pace, heart rate, a rest countdown, and a post-swim summary.
One glance at the wrist should be enough: each screen has one large number as its main subject; the length count jumps briefly after each completed length; during rest, a countdown ring completes and a vibration signals that it is time to get back in the water. The screen gets wet, so use rotation of the crown to unlock it and show the corresponding state in the interface.
Colors: a pure-black watch display, pool cyan as the main color, and white numbers. Do not use warm colors.
Design five screens: swimming, rest countdown, water lock, pause and end, and workout summary. Deliver `index.html` with one interactive screen and `screens.html` with all five screens side by side. Capture screenshots at 198×242, DPR=4.
View Chinese original
一个记录泳池训练的手表 App（屏幕按 198×242 设计，不画表壳和表带），界面用英文：训练中的趟数、配速、心率、休息倒计时，以及游完后的总结。
抬腕一眼就够是这件作品的核心：每一屏只有一个大数字是主角；每游完一趟，趟数跳一下；休息时一圈倒计时环走完就震动提示下水。屏幕会沾水，所以用转动表冠来解锁，界面上要有对应的状态。
配色：纯黑的表盘底，泳池的青色做主色，白色数字；不用暖色。
设计五屏：训练中、休息倒计时、屏幕锁定、暂停与结束、训练总结。交付 `index.html`（一块可操作的屏）和把五屏并排的 `screens.html`。截图按 198×242、DPR=4。
