Font related improvements

2026-08-13 12:05:47 -07:00
parent 4eda93cf24
commit acc4c117f7
19 changed files with 317 additions and 41 deletions
@@ -56,6 +56,13 @@ build 把同一个 build ID 注入浏览器 bundle 与 worker，发现更新后
 metadata 的唯一文案来源。Vite 在构建时解析并注入它，Rust 则嵌入同一文件来验证允许保存的 locale。增加文案键时必须为每个 locale 提供值；增加语言时同时增加完整
 `[locales."<code>".messages]` 段。业务命令如“点歌”是 Bilibili 输入协议，不属于 UI 翻译。

+## 字体资源
+
+Noto Serif SC、ZCOOL XiaoWei 与 LXGW
+WenKai 由锁定的 Fontsource 依赖提供；漓雨手书则以固定版本的 WOFF2 文件保存在
+`public/fonts/`。浏览器从 Rust 静态服务同域加载这些字体，不依赖 OBS 设备的系统字体。每套字体的 OFL-1.1 许可证均输出到
+`/fonts/licenses/`。
+
 ## 格式化与构建

 ```bash
@@ -8,6 +8,9 @@
      "name": "lxc-stream-overlay",
      "version": "0.1.0",
      "dependencies": {
+        "@fontsource/lxgw-wenkai": "5.3.0",
+        "@fontsource/noto-serif-sc": "5.3.0",
+        "@fontsource/zcool-xiaowei": "5.3.0",
        "react": "19.1.1",
        "react-dom": "19.1.1"
      },
@@ -745,6 +748,33 @@
        "node": ">=18"
      }
    },
+    "node_modules/@fontsource/lxgw-wenkai": {
+      "version": "5.3.0",
+      "resolved": "https://registry.npmjs.org/@fontsource/lxgw-wenkai/-/lxgw-wenkai-5.3.0.tgz",
+      "integrity": "sha512-+U5AAOXeaB7o+3G0Qm7I7Djz2Jd1hqNY+kClOZH8bTunyyGa2WxY12LZftt2AqUsxlfxwdQpd75Js1HQIt4H4g==",
+      "license": "OFL-1.1",
+      "funding": {
+        "url": "https://github.com/sponsors/ayuhito"
+      }
+    },
+    "node_modules/@fontsource/noto-serif-sc": {
+      "version": "5.3.0",
+      "resolved": "https://registry.npmjs.org/@fontsource/noto-serif-sc/-/noto-serif-sc-5.3.0.tgz",
+      "integrity": "sha512-0/zaEFkidiWldE62rTeD74x8ygUsQvejiSNtO0LQxQk3qpaHnlMZ3w4C7yH80B4KTIg8VKeFP4oSgwWMchY9+g==",
+      "license": "OFL-1.1",
+      "funding": {
+        "url": "https://github.com/sponsors/ayuhito"
+      }
+    },
+    "node_modules/@fontsource/zcool-xiaowei": {
+      "version": "5.3.0",
+      "resolved": "https://registry.npmjs.org/@fontsource/zcool-xiaowei/-/zcool-xiaowei-5.3.0.tgz",
+      "integrity": "sha512-iRuUPl9ONFbYzi6JcEshpE4VedINyzQ4hv0Z5XEt0cB0pMPiQeqc2Qvv1NwJCNzkPwG02VCdcO+cF2K8ylYn2A==",
+      "license": "OFL-1.1",
+      "funding": {
+        "url": "https://github.com/sponsors/ayuhito"
+      }
+    },
    "node_modules/@jridgewell/gen-mapping": {
      "version": "0.3.13",
      "resolved": "https://registry.npmjs.org/@jridgewell/gen-mapping/-/gen-mapping-0.3.13.tgz",
@@ -3,13 +3,16 @@
  "private": true,
  "version": "0.1.0",
  "scripts": {
-    "build": "tsc -b && vite build",
+    "build": "tsc -b && vite build && node scripts/check-font-assets.mjs",
    "dev": "vite",
    "docs:check": "node scripts/check-doc-links.mjs ../..",
    "format": "prettier --ignore-path ../../.prettierignore --write . ../server-rust/README.md ../../README.md ../../docs ../../compose.yaml",
    "format:check": "prettier --ignore-path ../../.prettierignore --check . ../server-rust/README.md ../../README.md ../../docs ../../compose.yaml"
  },
  "dependencies": {
+    "@fontsource/lxgw-wenkai": "5.3.0",
+    "@fontsource/noto-serif-sc": "5.3.0",
+    "@fontsource/zcool-xiaowei": "5.3.0",
    "react": "19.1.1",
    "react-dom": "19.1.1"
  },
@@ -0,0 +1,19 @@
+# Bundled font notice
+
+## Liyu Shoushu
+
+`liyu-shoushu-v0.107.woff2` is a WOFF2 conversion of `LiyuShoushu.ttf` from the official
+[Liyu Shoushu v0.107 release](https://github.com/InkPantherType/LiyuShoushu/releases/tag/v0.107).
+
+- Release tag commit: `219a0f42cb7b3f0d00be6e5bf9f8b5298a1f3060`
+- Original TTF SHA-256: `16554439b7e95da1fc354ed7b2c1551e83e942c3c5afb2a2e883761c6037dc22`
+- Bundled WOFF2 SHA-256: `b17f8c4fc6612a539d7a46e0eb5f57fdc732cff1d17804563b00a3f0a7eb9ab3`
+- Conversion: FontTools 4.63.0 WOFF2 compression with Brotli 1.2.0; no glyph subsetting
+- Coverage retained: 18,828 glyphs and 18,221 Unicode mappings
+- License: SIL Open Font License 1.1; see
+  [`licenses/liyu-shoushu-OFL.txt`](licenses/liyu-shoushu-OFL.txt)
+
+The original font credits Yuji Kataoka and the Yuji Project Authors for the base brush glyphs, LXGW
+and the LXGW ZhenKai Project Authors for punctuation and symbols, and Yuchen Tian's
+[zi2zi-JiT](https://github.com/kaonashi-tyc/zi2zi-JiT) for generated Chinese glyphs. This notice
+preserves the zi2zi-JiT attribution required by the upstream font documentation.
@@ -0,0 +1,94 @@
+Copyright 2026 Alexander Tseng.
+Portions Copyright 2021 The Yuji Project Authors (https://github.com/Kinutafontfactory/Yuji).
+Portions Copyright LXGW and LXGWZhenKai Project Authors (https://github.com/lxgw/LxgwZhenKai).
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+https://scripts.sil.org/OFL
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded,
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.
@@ -66,6 +66,7 @@ function isControlShell(pathname) {
 function isStaticAsset(pathname) {
  return (
    pathname.startsWith('/assets/') ||
+    pathname.startsWith('/fonts/') ||
    pathname.startsWith('/pwa/') ||
    pathname === '/control/manifest.webmanifest'
  )
@@ -0,0 +1,67 @@
+import { createHash } from 'node:crypto'
+import { readdir, readFile } from 'node:fs/promises'
+
+const dist = new URL('../dist/', import.meta.url)
+
+async function filesBelow(directory, prefix = '') {
+  const entries = await readdir(directory, { withFileTypes: true })
+  const files = []
+  for (const entry of entries) {
+    const relative = `${prefix}${entry.name}`
+    if (entry.isDirectory()) {
+      files.push(...(await filesBelow(new URL(`${entry.name}/`, directory), `${relative}/`)))
+    } else {
+      files.push(relative)
+    }
+  }
+  return files
+}
+
+const files = await filesBelow(dist)
+const expectedFonts = ['noto-serif-sc', 'zcool-xiaowei', 'lxgw-wenkai']
+const liyuFont = 'fonts/liyu-shoushu-v0.107.woff2'
+
+for (const font of expectedFonts) {
+  if (!files.some(file => file.startsWith(`assets/${font}-`) && file.endsWith('.woff2'))) {
+    throw new Error(`Missing bundled WOFF2 assets for ${font}`)
+  }
+  if (!files.includes(`fonts/licenses/${font}-OFL.txt`)) {
+    throw new Error(`Missing bundled license for ${font}`)
+  }
+}
+
+if (!files.includes(liyuFont)) throw new Error('Missing bundled WOFF2 asset for liyu-shoushu')
+if (!files.includes('fonts/licenses/liyu-shoushu-OFL.txt')) {
+  throw new Error('Missing bundled license for liyu-shoushu')
+}
+const liyuDigest = createHash('sha256')
+  .update(await readFile(new URL(liyuFont, dist)))
+  .digest('hex')
+if (liyuDigest !== 'b17f8c4fc6612a539d7a46e0eb5f57fdc732cff1d17804563b00a3f0a7eb9ab3') {
+  throw new Error(`Unexpected liyu-shoushu WOFF2 digest: ${liyuDigest}`)
+}
+
+const legacyWoff = files.find(file => file.endsWith('.woff'))
+if (legacyWoff) throw new Error(`Unexpected legacy WOFF asset: ${legacyWoff}`)
+
+const css = (
+  await Promise.all(
+    files.filter(file => file.endsWith('.css')).map(file => readFile(new URL(file, dist), 'utf8')),
+  )
+).join('\n')
+
+for (const family of ['Noto Serif SC', 'ZCOOL XiaoWei', 'LXGW WenKai', 'Liyu Shoushu']) {
+  const declarations = [
+    `font-family:${family}`,
+    `font-family:${JSON.stringify(family)}`,
+    `font-family:'${family}'`,
+  ]
+  if (!declarations.some(declaration => css.includes(declaration))) {
+    throw new Error(`Missing @font-face declaration for ${family}`)
+  }
+}
+if (!css.includes('font-display:block') || css.includes('font-display:swap')) {
+  throw new Error('Bundled fonts must block local fallback while loading')
+}
+
+console.log('Verified same-origin WOFF2 component fonts and licenses.')
@@ -0,0 +1,7 @@
+@font-face {
+  font-family: 'Liyu Shoushu';
+  font-style: normal;
+  font-display: block;
+  font-weight: 400;
+  src: url('/fonts/liyu-shoushu-v0.107.woff2') format('woff2');
+}
@@ -25,6 +25,10 @@ import { SongRequestOverlay } from './songOverlay'
 import { useComponentStream } from './stream'
 import { I18nProvider, translate, useI18n } from './i18n'
 import type { Session } from './types'
+import '@fontsource/noto-serif-sc/400.css'
+import '@fontsource/zcool-xiaowei/400.css'
+import '@fontsource/lxgw-wenkai/500.css'
+import './fonts.css'
 import './style.css'
 import './control.css'
 import './giftEffect.css'
@@ -105,6 +105,8 @@
 }

 .gift-menu-overlay.gift-menu-theme-moonlit-water {
+  height: 100%;
+  align-items: center;
  padding-block: calc(clamp(8px, 1.3vmin, 16px) + var(--moonlit-edge-space));
 }

@@ -1,7 +1,7 @@
 import type { CSSProperties } from 'react'

-/** Stable IDs persisted by the backend; each maps to a fixed, injection-safe stack. */
-export const fontFamilyIds = ['song', 'fang-song', 'kai'] as const
+/** Stable IDs persisted by the backend; each maps to a bundled, same-origin webfont. */
+export const fontFamilyIds = ['song', 'fang-song', 'kai', 'liyu-shoushu'] as const

 export type FontFamilyId = (typeof fontFamilyIds)[number]

@@ -9,12 +9,14 @@ export const fontFamilies: ReadonlyArray<{ id: FontFamilyId; nameKey: string }>
  { id: 'song', nameKey: 'settings.font_family.song' },
  { id: 'fang-song', nameKey: 'settings.font_family.fang_song' },
  { id: 'kai', nameKey: 'settings.font_family.kai' },
+  { id: 'liyu-shoushu', nameKey: 'settings.font_family.liyu_shoushu' },
 ]

 const fontStacks: Record<FontFamilyId, string> = {
-  song: '"Source Han Serif SC", "Noto Serif CJK SC", "Noto Serif SC", "Songti SC", STSong, SimSun, serif',
-  'fang-song': 'FangSong, STFangsong, "FZShuSong-Z01", "Noto Serif SC", "Songti SC", serif',
-  kai: '"Kaiti SC", STKaiti, KaiTi, "LXGW WenKai", "Noto Serif SC", serif',
+  song: '"Noto Serif SC", serif',
+  'fang-song': '"ZCOOL XiaoWei", serif',
+  kai: '"LXGW WenKai", serif',
+  'liyu-shoushu': '"Liyu Shoushu", serif',
 }

 export function normalizeFontFamilyId(value: unknown): FontFamilyId {
@@ -14,6 +14,13 @@ import { parse } from 'smol-toml'
 // The waiting worker is still activated explicitly by the user in the console.
 const pwaBuildId = Date.now().toString(36)
 const serviceWorkerSource = readFileSync(new URL('./pwa/control-sw.js', import.meta.url), 'utf8')
+const bundledFontLicenses = ['noto-serif-sc', 'zcool-xiaowei', 'lxgw-wenkai'].map(font => ({
+  fileName: `fonts/licenses/${font}-OFL.txt`,
+  source: readFileSync(
+    new URL(`./node_modules/@fontsource/${font}/LICENSE`, import.meta.url),
+    'utf8',
+  ),
+}))
 const i18nResource = parse(
  readFileSync(new URL('../../resources/i18n.toml', import.meta.url), 'utf8'),
 ) as unknown as {
@@ -51,6 +58,16 @@ const manifest = {
 export default defineConfig({
  plugins: [
    react(),
+    {
+      name: 'same-origin-woff2-fonts',
+      enforce: 'pre',
+      transform(source, id) {
+        if (!id.includes('/node_modules/@fontsource/') || !id.endsWith('.css')) return
+        return source
+          .replaceAll('font-display: swap', 'font-display: block')
+          .replace(/,\s*url\([^)]*\.woff\) format\(['"]woff['"]\)/g, '')
+      },
+    },
    {
      name: 'control-pwa-assets',
      transformIndexHtml(html) {
@@ -61,6 +78,9 @@ export default defineConfig({
          .replaceAll('__APP_DESCRIPTION__', defaultMessages['pwa.manifest.description'])
      },
      generateBundle() {
+        for (const license of bundledFontLicenses) {
+          this.emitFile({ type: 'asset', ...license })
+        }
        this.emitFile({
          type: 'asset',
          fileName: 'control/sw.js',
@@ -956,6 +956,7 @@ checksum = "68ab91017fe16c622486840e4c83c9a37afeff978bd239b5293d61ece587de66"
 [[package]]
 name = "libilibili"
 version = "0.1.0"
+source = "git+http://gitea.home.arpa/felis/libilibili.git#3cb2a902d4d9387c5581a1827cc19248b6000ae2"
 dependencies = [
 "base64",
 "brotli",
@@ -7,20 +7,30 @@ edition = "2024"
 axum = { version = "0.8", features = ["ws", "json"] }
 async-trait = "0.1"
 base64 = "0.22"
-chrono = { version = "0.4", default-features = false, features = ["clock", "serde"] }
+chrono = { version = "0.4", default-features = false, features = [
+    "clock",
+    "serde",
+] }
 chacha20poly1305 = "0.10"
 deadpool-postgres = "0.14"
 # Kept as a sibling checkout during development. Docker Compose supplies the
 # same directory as a named BuildKit context at `/libilibili`.
-libilibili = { path = "../../../libilibili" }
+libilibili = { git = "http://gitea.home.arpa/felis/libilibili.git" }
 rand = "0.9"
-reqwest = { version = "0.12", default-features = false, features = ["json", "rustls-tls"] }
+reqwest = { version = "0.12", default-features = false, features = [
+    "json",
+    "rustls-tls",
+] }
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 sha2 = "0.10"
 subtle = "2"
 tokio = { version = "1", features = ["full"] }
-tokio-postgres = { version = "0.7", features = ["with-serde_json-1", "with-uuid-1", "with-chrono-0_4"] }
+tokio-postgres = { version = "0.7", features = [
+    "with-serde_json-1",
+    "with-uuid-1",
+    "with-chrono-0_4",
+] }
 tokio-util = "0.7"
 toml = "0.8"
 totp-rs = { version = "5.7", features = ["gen_secret", "qr", "zeroize"] }
@@ -1,8 +1,8 @@
 //! Shared, validated typography settings for all built-in OBS components.
 //!
-//! Font IDs map to fixed frontend font stacks rather than accepting arbitrary
-//! CSS. This keeps settings portable between OBS hosts and prevents untrusted
-//! component settings from becoming a CSS injection boundary.
+//! Font IDs map to fixed, same-origin WOFF2 assets in the frontend rather than
+//! accepting arbitrary CSS. This keeps settings portable between OBS hosts and
+//! prevents untrusted component settings from becoming a CSS injection boundary.

 use serde::{Deserialize, Serialize};

@@ -13,6 +13,7 @@ pub enum FontFamilyId {
    #[default]
    FangSong,
    Kai,
+    LiyuShoushu,
 }

 pub const fn default_font_brightness() -> u16 {
@@ -35,5 +36,9 @@ mod tests {
        );
        assert_eq!(sanitize_font_brightness(1), 70);
        assert_eq!(sanitize_font_brightness(u16::MAX), 180);
+        assert_eq!(
+            serde_json::to_string(&FontFamilyId::LiyuShoushu).unwrap(),
+            "\"liyu-shoushu\""
+        );
    }
 }
@@ -12,28 +12,30 @@

 ## 设置

-| 字段                     | 范围/单位   | 行为                       |
-| ------------------------ | ----------- | -------------------------- |
-| `themeId`                | 主题 ID     | 选择已安装的完整视觉主题   |
-| `fontFamily`             | 字体 ID     | `song`、`fang-song`、`kai` |
-| `fontBrightness`         | 70–180%     | 只调整文字亮度             |
-| `viewerColor`            | `#RRGGBB`   | 可选的用户昵称颜色覆盖     |
-| `danmakuColor`           | `#RRGGBB`   | 可选的弹幕正文颜色覆盖     |
-| `fontScale`              | 50–300%     | 展开与收缩字号的统一比例   |
-| `decorationLineWeight`   | 50–300%     | 边框、分隔线与古风边缘粗细 |
-| `maxVisible`             | 1–12        | 同时保留的消息卡数量       |
-| `collapseAfterSeconds`   | 2–120 秒    | 最新卡从展开态切换到紧凑态 |
-| `unfoldDurationMs`       | 200–5000 ms | 横向卷轴展开动画时间       |
-| `motionIntensity`        | 0–100%      | 卡片、流光与焦点动画强度   |
-| `particleCount`          | 0–12        | 每卡星花粒子数量           |
-| `particleSpeed`          | 25–300%     | 粒子动画速度               |
-| `lowPerformanceMode`     | boolean     | 关闭高成本动态效果         |
-| `highValueThreshold`     | 千分之一元  | 高价值礼物起点             |
-| `featuredValueThreshold` | 千分之一元  | 焦点礼物起点               |
-| `show*`                  | boolean     | 控制各事件类别订阅         |
+| 字段                     | 范围/单位   | 行为                                       |
+| ------------------------ | ----------- | ------------------------------------------ |
+| `themeId`                | 主题 ID     | 选择已安装的完整视觉主题                   |
+| `fontFamily`             | 字体 ID     | `song`、`fang-song`、`kai`、`liyu-shoushu` |
+| `fontBrightness`         | 70–180%     | 只调整文字亮度                             |
+| `viewerColor`            | `#RRGGBB`   | 可选的用户昵称颜色覆盖                     |
+| `danmakuColor`           | `#RRGGBB`   | 可选的弹幕正文颜色覆盖                     |
+| `fontScale`              | 50–300%     | 展开与收缩字号的统一比例                   |
+| `decorationLineWeight`   | 50–300%     | 边框、分隔线与古风边缘粗细                 |
+| `maxVisible`             | 1–12        | 同时保留的消息卡数量                       |
+| `collapseAfterSeconds`   | 2–120 秒    | 最新卡从展开态切换到紧凑态                 |
+| `unfoldDurationMs`       | 200–5000 ms | 横向卷轴展开动画时间                       |
+| `motionIntensity`        | 0–100%      | 卡片、流光与焦点动画强度                   |
+| `particleCount`          | 0–12        | 每卡星花粒子数量                           |
+| `particleSpeed`          | 25–300%     | 粒子动画速度                               |
+| `lowPerformanceMode`     | boolean     | 关闭高成本动态效果                         |
+| `highValueThreshold`     | 千分之一元  | 高价值礼物起点                             |
+| `featuredValueThreshold` | 千分之一元  | 焦点礼物起点                               |
+| `show*`                  | boolean     | 控制各事件类别订阅                         |

 后端的 `OverlaySettings::sanitize` 是最终边界。控制台 range
-input 只改善交互，不能取代服务端校验。字体 ID 只映射到前端预先注册的安全字体栈，不接受任意 CSS；OBS 设备缺少首选字体时会依次回退到可用衬线字体。颜色覆盖同样只接受六位十六进制颜色；留空时使用主题色，切换主题后会自动采用新主题的配色。
+input 只改善交互，不能取代服务端校验。字体 ID 只映射到前端预先注册并由服务同域提供的 WOFF2 字体，不接受任意 CSS，也不依赖 OBS 设备安装的字体；`song`、`fang-song`、`kai`
+与 `liyu-shoushu` 分别使用 Noto Serif SC、ZCOOL XiaoWei、LXGW
+WenKai 与漓雨手书。颜色覆盖同样只接受六位十六进制颜色；留空时使用主题色，切换主题后会自动采用新主题的配色。

 ## 主题

@@ -142,10 +142,11 @@ name = "简体中文"
 "nav.logout" = "退出"
 "settings.theme" = "主题"
 "settings.font_family" = "中文字体"
-"settings.font_family_description" = "按 OBS 所在设备已安装字体依次匹配；缺失时自动回退到衬线字体。"
-"settings.font_family.song" = "宋体 · 端正"
-"settings.font_family.fang_song" = "仿宋 · 清雅"
-"settings.font_family.kai" = "楷体 · 书卷"
+"settings.font_family_description" = "字体随服务提供并由 OBS 同域加载，不依赖设备已安装字体。"
+"settings.font_family.song" = "思源宋体 · 端正"
+"settings.font_family.fang_song" = "小薇体 · 清雅"
+"settings.font_family.kai" = "霞鹜文楷 · 书卷"
+"settings.font_family.liyu_shoushu" = "漓雨手书 · 毛笔手写"
 "settings.font_brightness" = "文字亮度"
 "settings.font_brightness_description" = "只提亮文字，不改变透明背景、礼物图片或直播画面。"
 "settings.viewer_color" = "用户昵称颜色"
@@ -642,10 +643,11 @@ name = "English"
 "nav.logout" = "Log out"
 "settings.theme" = "Theme"
 "settings.font_family" = "Chinese typeface"
-"settings.font_family_description" = "Uses the first installed font on the OBS device and falls back safely to a serif face."
-"settings.font_family.song" = "Song · Formal"
-"settings.font_family.fang_song" = "FangSong · Refined"
-"settings.font_family.kai" = "Kai · Calligraphic"
+"settings.font_family_description" = "Fonts are served by this service and loaded from the same origin instead of relying on fonts installed on the OBS device."
+"settings.font_family.song" = "Noto Serif SC · Formal"
+"settings.font_family.fang_song" = "ZCOOL XiaoWei · Refined"
+"settings.font_family.kai" = "LXGW WenKai · Calligraphic"
+"settings.font_family.liyu_shoushu" = "Liyu Shoushu · Brush handwriting"
 "settings.font_brightness" = "Text brightness"
 "settings.font_brightness_description" = "Brightens text only; transparency, gift artwork, and the underlying scene are unchanged."
 "settings.viewer_color" = "Viewer name color"