07 · Spend & Exit
消费与退出Spend & Exit
日常消费、卡片使用与账户降级/退出路径。Everyday spending, card usage, and the downgrade/exit path for accounts.
用得上，也撤得出。退出比开户更重要。Usable today, exitable tomorrow. Exit matters more than opening.
这一层先保留结构。没有核实过的内容，不会用占位文章冒充可用。This layer keeps its structure for now. Unverified content will never be faked as available.