[conanxin]

Summary

This PR redesigns the 2014books web experience from a simple static archive page into a magazine-style reading experience.

What changed

• Added a magazine-style hero masthead with issue framing, badges, and CTA buttons
• Added an editor’s note section explaining the project origin, the verified 97-book count, and the remaining 3-book gap
• Added featured chapter cards with large numbering, summaries, and reading links
• Reworked the full chapter archive into a more readable editorial layout
• Improved the book archive with stronger visual hierarchy and real-time search
• Isolated low-confidence missing-book candidates into a research appendix
• Added sticky navigation and back-to-top interaction
• Upgraded the visual system with warm paper tones, serif headings, dark red accents, better spacing, and more comfortable reading typography

Validation

• make web PASS
• make pdf PASS
• make epub PASS
• No external CDN
• No complex frontend framework
• Official books.json remains at 97 verified books
• Missing candidates remain isolated from the official book list

Notes

This PR does not attempt to fill the missing 3 books. The project continues to treat 97 books as the verified in-repository count, with low-confidence candidates kept separate for future research.