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fec-accessibility-check

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用于审查或改进前端无障碍、语义结构、键盘支持、焦点管理、ARIA 标签、屏幕阅读器行为、WCAG 2.2 问题、触控无障碍或辅助技术回归；中文触发词包括 无障碍、accessibility、a11y、WCAG、屏幕阅读器。

localized/zh-CN/skills/fec-accessibility-check/SKILL.md

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Nov 8, 2026
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MIT

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# 无障碍实现规范（WCAG 2.2 AA）

## 用途

确保前端 UI 对残障用户可访问，满足 WCAG 2.2 AA 的核心要求，并能被键盘、屏幕阅读器、触控和缩放用户稳定使用。

## 流程

1. 检查语义结构：landmark、标题层级、表单 label、按钮/链接可访问名称、表格语义和图片 alt。
2. 检查键盘路径：Tab 顺序、Enter/Space/Esc 行为、焦点可见、关闭后焦点恢复。
3. 检查复杂组件：对话框、菜单、标签页、树、抽屉、表格和自定义控件的 ARIA 状态。
4. 检查动态状态：loading、empty、error、toast 和异步更新需要被屏幕阅读器感知。
5. 检查视觉与触控可读性：文本/背景对比、focus ring、缩放到 200%、减少动效偏好、触摸目标尺寸和移动端虚拟键盘行为。
6. 用真实键盘路径复核关键流程，必要时补充屏幕阅读器或浏览器无障碍树观察；屏幕阅读器流程见 [references/screen-reader-testing.md](references/screen-reader-testing.md)。
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