Changes:
- Remove the ugly 光 logo-mark icon (red arrow marked element)
- Add English translations below each Chinese text line
- Increase title size from 3.2rem to 4.5rem max
- Expand main container from 680px to 860px
- Add shimmer light sweep effect on title and tagline
- Add breathing scale animation on title
- Add typewriter effect on status badge text
- Add cursor blink animation
- Improve tagline layout with bilingual rows
- Enhance spacing, letter-spacing and visual hierarchy
- Keep favicon unchanged (browser tab icon is fine)
Agent-Logs-Url: https://github.com/qinfendebingshuo/guanghulab/sessions/897b908e-8f31-4392-a0d2-7291dd6ad8bd
Co-authored-by: qinfendebingshuo <207279273+qinfendebingshuo@users.noreply.github.com>
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