Billfold
12 屏 · 钱包与卡片A wallet where the cards are the only colour
Twelve screens of a digital wallet built the way a real one works, a stack of objects that already have identities on a page that has none, with every balance, points total, expiry countdown, spend limit and pass validity on every screen derived from the card or the ticket rather than asserted beside it.
设计系统加上全部 12 屏，一条提示词全带走。如果只要其中一屏，每一屏也都有自己的免费页面。
设计系统
随套装附带的一个文件。每一屏都把这些数值写在自己里面，好让它能被单独取走；构建会拒绝任何画出这个文件未命名颜色的屏幕。
颜色
尺度
流程
按人们遇到它们的先后排列。这是应用自身的顺序，不是一份分类清单。
The wallet
4The stack itself. Cards keep their own identity, the page keeps none, and paying is one screen rather than four.
Passes and tickets
4The half of a wallet that expires. Boarding passes, event tickets and loyalty, each with a real validity window rather than a picture of a barcode.
Control
4What the wallet has done and who is allowed to use it. Activity across every card, limits that bite, and the security behind the lot.
