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问题:navigate(-1) 浏览器后退不会传递 location.state 解决方案: - 切换 tab 时保存到 sessionStorage - 页面加载时优先从 sessionStorage 恢复 tab 修改文件: - frontend/src/pages/business-trip/list.tsx - frontend/src/pages/approval/list.tsx Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>