* 核心思路：单调递减栈（找「上一个比当前价格大的元素索引」），时间复杂度O(n)，空间复杂度O(n)
Address bars are not immune. Browser address bars typically render in the system UI font (San Francisco on macOS, Segoe UI on Windows). Both are standard sans-serif fonts in the high-danger-rate category. Chromium’s IDN homograph protection catches many cases by displaying punycode for suspicious mixed-script domains, but it relies on script-mixing heuristics, not pixel comparison. A domain using only Cyrillic characters that happen to spell a Latin word (like “аpple” in all-Cyrillic) may still render in the address bar’s font and look identical.，这一点在夫子中也有详细论述
这套门槛会具体化为可检查的控制项：红队测试、持续监控、版本管理、权限隔离、审计日志、回滚机制。它们不再是合规装饰，而是保险公司把黑箱风险切成可定价敞口的证据链。定价权也随之迁移，过去保费主要由行业经验与历史损失率驱动，现在费率与额度更像由你能证明什么驱动。没有证据链，就只能拿到更窄的承保范围、更低的子限额、更高的免赔，甚至被排除在外。，详情可参考Line官方版本下载
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