feat(app): restructure to multi-page layout and add content pages

Converts the website from a single-page design with anchor links to a full multi-page application. This change improves site organization, navigation, and scalability.

- Adds new top-level pages: `/news`, `/events`, and `/about`.
- Introduces a new section for the 40th Anniversary at `/40th-anniversary`, including a proposal sub-page.
- Updates the default layout with a new navigation menu, a promotional banner, social links, and page transitions.
This commit is contained in:
xiaomai
2025-10-26 22:18:29 +08:00
parent a864ffd9cf
commit 567c9ef9c9
15 changed files with 505 additions and 56 deletions

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