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feat(a11y,ux): implement comprehensive accessibility and UX optimizations

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Phase 1: Accessibility Optimizations
- Add proper label associations and ARIA attributes to form inputs
- Implement aria-required, aria-invalid, aria-describedby for better form accessibility
- Add role='alert' for error messages
- Enhance keyboard navigation with aria-expanded, aria-controls
- Add aria-label for mobile menu button
- Implement aria-current for active navigation items
- Add semantic HTML with aria-labelledby for sections

Phase 2: UX Optimizations
- Create loading skeleton components for better loading states
- Add FormSkeleton, SectionSkeleton, and LoadingSkeleton components
- Prepare for lazy loading implementation

Files modified:
- src/components/ui/input.tsx: Enhanced with ARIA attributes
- src/components/ui/textarea.tsx: Enhanced with ARIA attributes
- src/components/layout/header.tsx: Added navigation ARIA labels
- src/components/sections/hero-section.tsx: Added section labels
- src/components/sections/services-section.tsx: Added section labels
- src/components/ui/loading-skeleton.tsx: New loading state components

Impact:
- WCAG 2.1 AA compliance improvements
- Better screen reader support
- Enhanced keyboard navigation
- Improved user feedback during loading
This commit is contained in:
张翔
2026-02-24 00:40:19 +08:00
parent 44ba75e4d1
commit 016b7cfb91
22 changed files with 2479 additions and 7 deletions
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package-lock.json
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+65
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