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EmailBill/openspec/changes/archive/2026-02-17-chart-optimization/specs/budget-gauge-display/spec.md
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## MODIFIED Requirements
### Requirement: 仪表图容器布局
预算仪表图 SHALL 在容器内正确居中显示,无错位。
#### Scenario: 垂直居中展示
- **WHEN** 用户查看预算页面的仪表图
- **THEN** 仪表图 SHALL 在容器内垂直居中
- **AND** SHALL 在容器内水平居中
- **AND** 与上下其他元素 SHALL 保持适当间距16px
#### Scenario: 响应式布局
- **WHEN** 用户在不同屏幕尺寸下查看仪表图
- **THEN** 仪表图 SHALL 保持居中不偏移
- **AND** 容器高度 SHALL 自适应确保图表完整显示
### Requirement: 页面错误处理
预算页面 SHALL 正确加载并显示仪表图,无运行时错误。
#### Scenario: 正常加载
- **WHEN** 用户访问预算页面
- **THEN** 页面 SHALL 无 JavaScript 错误
- **AND** 仪表图 SHALL 正常渲染
- **AND** 所有交互功能 SHALL 正常工作
#### Scenario: 错误边界处理
- **WHEN** 仪表图组件发生异常
- **THEN** 系统 SHALL 捕获错误并显示友好提示
- **AND** SHALL 不阻塞页面其他功能