feat(ui): warm library palette (zinc+emerald -> stone+amber) with hover/focus feedback; text reader gains paper/sepia/night themes + persisted font-size (lib/readerPrefs.ts), serif justified measure; PDF drops emoji icons for 首页/末页, CBZ pill page counter, EPUB centered spread, blur reader header with format badge, aria labels on login/search/chapter select

docs/CHANGELOG_web.md

@@ -8,7 +8,17 @@ The format loosely follows Keep a Changelog and can be adapted to the team's hab
 
 ## [Unreleased]
 
-### Fixed / 修复
+### Added / 新增
+
+- Text (.txt/.md) reader upgrades: paper / sepia / night reading themes and adjustable font size, with a compact prefs bar; choices persist across books (localStorage); body text is now serif with a readable measure and justified lines.
+- 文本阅读器（.txt/.md）升级：新增 纸/米/夜 三种阅读主题与字号调节，工具条常驻；偏好跨书持久化（localStorage）；正文改为衬线字体、收窄行宽并两端对齐，更利于长时间阅读。
+- PDF reader: emoji skip icons replaced with 首页/末页 text buttons, framed page canvas, and an accessible label announcing arrow-key paging.
+- PDF 阅读器：以文字按钮（首页/末页）替换 emoji 图标，页面画布加边框投影，并补充可访问的「方向键翻页」说明。
+
+### Changed / 变更
+
+- Whole UI restyled to a warm library palette (stone surfaces + amber accents, replacing cool zinc + emerald): warmer dark chrome, amber primary buttons/links, hover/press feedback on shelf cards (cover lift + glow), reader header with format badge and blur, pill-style CBZ page indicator, EPUB spread centered like a book page.
+- 全站换为暖色「书房」配色（stone 深灰面 + amber 琥珀强调，替代冷色 zinc + emerald）：书架封面悬停上浮高亮、阅读器顶栏带格式徽章与毛玻璃、CBZ 页码改为悬浮胶囊、EPUB 页面居中成书卷感，主按钮/链接统一琥珀色并补齐悬停/焦点反馈。
 
 - .txt/.md files encoded in GBK/GB2312/GB18030 or UTF-16 (typical web-novel exports) no longer render as mojibake: the reader strictly tries UTF-8 first and falls back to GB18030, recognizing UTF-16 by BOM.
 - GBK/GB2312/GB18030 或 UTF-16 编码的 .txt/.md（网文导出常见）不再乱码：阅读器先按 UTF-8 严格解码，失败自动回退 GB18030，UTF-16 靠 BOM 识别。