v1.4.1

修复

• 界面字号设置之前不是真正全局生效：样式表里 62 处按钮/卡片数字/表格文字等
  的字号是写死的 px，只改 body 自己的 font-size 根本碰不到它们，调节滑块时
  页面看起来"没什么变化"。修复过程中还发现一个连带问题：把这 62 处全部换成相对
  根字号的 rem 单位后，第一版验证时发现即使 CSS 变量本身已经正确更新，
  <html> 的实际字号还是纹丝不动——原因是 html, body { ... font-size: 1rem }
  这条联合选择器规则会同时套到 html 和 body 头上，而 1rem 用在根元素自己
  身上不是"相对自己"、是相对浏览器默认的 16px，这条规则排在后面，把专门给
  html 写的字号规则覆盖掉了。现在用全新浏览器验证过：默认 14px 时按钮是
  13px、卡片数字 28px；调到 18px 后按钮变成 16.7px、卡片数字变成 36px——整站
  所有文字同比例联动缩放。
• 界面字体设置对导航栏/按钮类文字不生效：<button>/<select>/<input>/
  <textarea> 这几个表单控件元素，浏览器自己的默认样式表压根不会让它们继承正文
  的 font-family（会摆烂用系统 UI 控件字体，实测是 Arial），这是每个浏览器的
  标准行为，不是继承链断了——"首页"/"状态信息"这些导航按钮、"新建会话"这类按钮
  换字体跟没换一样，根因就是这个。加一条 button, input, select, textarea { font-family: inherit; } 就解决了，截图验证过导航文字确实跟着变成楷体的手写
  笔画风格。

新增

• 界面字体新增三个中文选项：楷体、黑体（思源黑体）、宋体（思源宋体）。没有
  把字体文件打包进项目——完整 CJK 字库一个 17～21MB，直接打包会让首次切字体的
  下载很慢——改成纯字体名引用，访问者的系统/浏览器本地装了对应字体就会生效
  （这台 Linux 机器本身已经装了 AR PL UKai/UMing、Noto Sans/Serif CJK、霞鹜文楷
  这些开源中文字体，同机或同局域网内访问能直接命中；Windows 的"微软雅黑"/
  "宋体"、Mac 的"苹方"/"华文楷体"也在各自字体栈里）。没有加"柳体"——系统上没有
  真正的柳公权风格书法字体，网上找到的几款标榜"柳体"的免费字体授权条款未经
  核实，不确定能不能安全打包，先跳过。

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English

Fixed

• The interface font-size setting wasn't actually global: 62 places in the stylesheet
  (buttons, card numbers, table text, …) had hardcoded pixel font-sizes, so changing only
  body's own font-size never touched them — the slider looked like it barely did
  anything. Fixing it surfaced a second, related bug: after converting all 62 to rem
  units relative to the root, the first verification pass showed the CSS variable updating
  correctly while <html>'s actual font-size never moved — because the combined
  html, body { ... font-size: 1rem } rule applies to both elements, and 1rem on the
  root element itself doesn't mean "relative to itself," it resolves against the browser's
  16px default; that rule came later in the cascade and silently overrode the dedicated
  html font-size rule. Verified in a fresh browser profile: at the 14px default, buttons
  render at 13px and card numbers at 28px; at 18px, buttons become 16.7px and card numbers
  36px — every piece of text scales together now.
• The interface font setting had no effect on nav-bar/button text: browsers'
  built-in default stylesheet never lets <button>/<select>/<input>/<textarea>
  inherit the surrounding font-family — they fall back to the OS's native UI control
  font instead (Arial, in practice), and that's standard behavior in every browser, not a
  broken inheritance chain. So switching fonts did nothing for the "Home"/"Status" nav
  buttons or things like the "New Session" button. Fixed with a single
  button, input, select, textarea { font-family: inherit; } rule — verified via
  screenshot that the nav text now actually picks up Kaiti's handwritten brush strokes.

Added

• Three new Chinese font options in the interface font setting: Kaiti (calligraphy-
  style), Heiti (Source Han Sans), and Songti (Source Han Serif). No font files were
  bundled into the project — a full CJK glyph set runs 17–21MB each, and bundling would
  make the first font switch painfully slow to download — so these are plain font-name
  references instead; they render correctly wherever the visitor's system/browser already
  has a matching font installed (this Linux machine itself has AR PL UKai/UMing, Noto
  Sans/Serif CJK, and LXGW WenKai, so same-machine or same-LAN access picks them up
  directly; Windows's "Microsoft YaHei"/"SimSun" and macOS's "PingFang SC"/"STKaiti" are
  also in the respective stacks). A "Liu style" (柳体, Liu Gongquan calligraphy) option was
  not added — no such font is installed on this system, and the free fonts online claiming
  that style have unverified licensing, so bundling one wasn't safe to do without
  confirmation.

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完整更新日志见 CHANGELOG.md （English）。