diff --git a/README.md b/README.md
index dc0db4c..4a9a439 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@ docker run -d --name rawmark \
 - 笔记以普通 `.md` 文件保存在 `数据目录/vault/`，粘贴、上传和导入的图片统一存放在笔记同级的 `assets/`，链接使用 `./assets/文件名`，同目录相同内容去重。笔记跨目录移动时图片跟随，仍被其他笔记引用的原图保留；删除单篇笔记不会删除共享图片。旧 `笔记名.assets/` 仍可读取、移动与恢复；外部修改会实时同步到网页。
 - 知识工具：标准 Markdown 链接构成图谱，支持正文 `#标签` 与 YAML `tags`。笔记或文件夹在应用内改名、移动时维护入链和相对出链；公式和代码示例不参与关系提取。
 - 日记与模板：默认日记路径为 `Daily/YYYY-MM-DD.md`（本地日期），已有日记直接打开；模板为 `Templates/` 下的普通 Markdown，支持 `{{date}}`、`{{time}}`、`{{title}}`，资源链接按新笔记位置调整。可在设置中修改目录和日记模板。
-- 外观：浅色玻璃工作台与深色模式，字体资源随应用本地提供；代码块使用 highlight.js，固定采用官网的 Atom One Dark 配色，与页面明暗模式独立；界面字号默认 14px，可输入 14–20px 并单独重置，与编辑器及阅读字号独立；排版、玻璃透明度、选中文本工具栏均可在设置中调整并即时保存。
+- 外观：浅色玻璃工作台与深色模式，默认字体为 Maple Mono Normal NL NF CN v7.9（界面、正文与代码），字体资源随应用本地提供；代码块使用 highlight.js，固定采用官网的 Atom One Dark 配色，与页面明暗模式独立；界面字号默认 14px，可输入 14–20px 并单独重置，与编辑器及阅读字号独立；排版、玻璃透明度、选中文本工具栏均可在设置中调整并即时保存。
 - 选区格式：电脑与触屏选中文字后提供外观、加粗、斜体、下划线、删除线、高亮和链接。外观可设置配色、字体、局部字号与效果；下划线及外观以受限的标准 HTML 行内标签保存在 Markdown 中，源码与导出保留标签，其他软件的显示取决于其 HTML 支持。清除样式只重置局部外观；底部不再显示格式栏。
 - 图片管理：侧栏默认隐藏 `assets` 和 `笔记名.assets`；右键文件夹选择「图片管理」，查看当前目录及直属附件目录的图片，支持检索、排序、网格/列表、批量上传、引用查看及预览、重命名、移动、替换。可切换整个知识库；清理孤立图片须确认候选，服务端再次核对全库引用后移入回收站，可恢复。上传至所选目录的 `assets/`，相同内容自动去重。根目录可在侧栏空白处右键或通过命令面板打开。图片改名/移动会更新笔记中的本地引用；替换保留路径，选择相同扩展名的图片（最大 50 MB），旧图片不进回收站。
 - `--user` 让容器以宿主机用户身份读写数据目录；不指定时容器以 UID 65532 运行，需要该用户对目录有写权限。
@@ -69,3 +69,5 @@ scripts/dev.sh --host   # 前端监听所有网卡，手机访问 http://<电脑
 cd web && npm run typecheck && npm test
 go vet -tags dev ./... && go test ./internal/...
 ```
+
+字体资源已入库，普通构建无需下载或转换。重新生成时，在独立 Python 环境安装 `fonttools[woff]`，下载 [v7.9 指定字体包](https://github.com/subframe7536/maple-font/releases/download/v7.9/MapleMonoNormalNL-NF-CN.zip)，运行 `python3 scripts/prepare-maple-font.py /path/to/MapleMonoNormalNL-NF-CN.zip`；生成 WOFF2 与 `maple-font.css`，保留上游许可。
diff --git a/scripts/prepare-maple-font.py b/scripts/prepare-maple-font.py
new file mode 100644
index 0000000..13fdde4
--- /dev/null
+++ b/scripts/prepare-maple-font.py
@@ -0,0 +1,38 @@
+#!/usr/bin/env python3
+"""从指定 v7.9 ZIP 重建本地字体：python3 scripts/prepare-maple-font.py /path/to/MapleMonoNormalNL-NF-CN.zip。
+仅重建字体时需要 fonttools[woff]；应用构建直接使用已入库的 WOFF2。
+来源：https://github.com/subframe7536/maple-font/releases/tag/v7.9
+"""
+import io
+from pathlib import Path
+import sys
+import zipfile
+
+from fontTools import subset
+from fontTools.ttLib import TTFont
+
+root = Path(__file__).resolve().parents[1] / 'web/src/themes'
+output = root / 'fonts/maple'
+output.mkdir(exist_ok=True)
+family = 'Maple Mono Normal NL NF CN'
+css = ['/* Maple Mono v7.9；由 scripts/prepare-maple-font.py 生成，授权见 fonts/maple/LICENSE.txt。 */']
+with zipfile.ZipFile(sys.argv[1]) as archive:
+    (output / 'LICENSE.txt').write_bytes(archive.read('LICENSE.txt'))
+    for variant, weight, style in [('Regular', 400, 'normal'), ('Bold', 700, 'normal'), ('Italic', 400, 'italic'), ('BoldItalic', 700, 'italic')]:
+        data = archive.read('MapleMonoNormalNL-NF-CN-' + variant + '.ttf')
+        source = TTFont(io.BytesIO(data))
+        points = sorted(source.getBestCmap())
+        # 按 Unicode 区间分片，中文和 Nerd Font 不强制随拉丁文字一起下载。
+        for block in sorted({cp // 4096 for cp in points}):
+            unicodes = [cp for cp in points if cp // 4096 == block]
+            font = TTFont(io.BytesIO(data), recalcTimestamp=False)
+            options = subset.Options()
+            options.flavor = 'woff2'
+            subsetter = subset.Subsetter(options=options)
+            subsetter.populate(unicodes=unicodes)
+            subsetter.subset(font)
+            font.flavor = 'woff2'
+            name = f'{variant.lower()}-{block:02x}.woff2'
+            font.save(output / name)
+            css.append(f"@font-face {{ font-family: '{family}'; font-style: {style}; font-weight: {weight}; font-display: swap; src: url('./fonts/maple/{name}') format('woff2'); unicode-range: U+{block * 4096:X}-{(block + 1) * 4096 - 1:X}; }}")
+(root / 'maple-font.css').write_text('\n'.join(css) + '\n')
diff --git a/web/src/themes/base.css b/web/src/themes/base.css
index 822e342..aa7c6c9 100644
--- a/web/src/themes/base.css
+++ b/web/src/themes/base.css
@@ -1,13 +1,14 @@
 @import './fonts.css';
 @import 'highlight.js/styles/atom-one-dark.css';
+@import './maple-font.css';
 
 /* 基础主题。--rm-* 变量继续作为主题接口，字体在本地加载。 */
 :root {
   color-scheme: light;
   --rm-sidebar-width: 288px;
-  --rm-font-text: 'Manrope', 'PingFang SC', 'Microsoft YaHei', sans-serif;
-  --rm-font-heading: 'Noto Serif SC', 'Source Han Serif SC', serif;
-  --rm-font-mono: 'JetBrains Mono', ui-monospace, monospace;
+  --rm-font-text: 'Maple Mono Normal NL NF CN', monospace;
+  --rm-font-heading: var(--rm-font-editor, var(--rm-font-text));
+  --rm-font-mono: 'Maple Mono Normal NL NF CN', monospace;
   --rm-font-size: 16px;
   /* 界面排版独立于正文；辅助文字随界面缩放，但不小于 13px。 */
   --rm-ui-font-size: 14px;
diff --git a/web/src/themes/fonts/maple/LICENSE.txt b/web/src/themes/fonts/maple/LICENSE.txt
new file mode 100644
index 0000000..65ea530
--- /dev/null
+++ b/web/src/themes/fonts/maple/LICENSE.txt
@@ -0,0 +1,93 @@
+Copyright 2022 The Maple Mono Project Authors (https://github.com/subframe7536/maple-font)
+
+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://openfontlicense.org
+
+
+-----------------------------------------------------------
+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.
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diff --git a/web/src/themes/maple-font.css b/web/src/themes/maple-font.css
new file mode 100644
index 0000000..60ff0dd
--- /dev/null
+++ b/web/src/themes/maple-font.css
@@ -0,0 +1,61 @@
+/* Maple Mono v7.9；由 scripts/prepare-maple-font.py 生成，授权见 fonts/maple/LICENSE.txt。 */
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 400; font-display: swap; src: url('./fonts/maple/regular-00.woff2') format('woff2'); unicode-range: U+0-FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 400; font-display: swap; src: url('./fonts/maple/regular-01.woff2') format('woff2'); unicode-range: U+1000-1FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 400; font-display: swap; src: url('./fonts/maple/regular-02.woff2') format('woff2'); unicode-range: U+2000-2FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 400; font-display: swap; src: url('./fonts/maple/regular-03.woff2') format('woff2'); unicode-range: U+3000-3FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 400; font-display: swap; src: url('./fonts/maple/regular-04.woff2') format('woff2'); unicode-range: U+4000-4FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 400; font-display: swap; src: url('./fonts/maple/regular-05.woff2') format('woff2'); unicode-range: U+5000-5FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 400; font-display: swap; src: url('./fonts/maple/regular-06.woff2') format('woff2'); unicode-range: U+6000-6FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 400; font-display: swap; src: url('./fonts/maple/regular-07.woff2') format('woff2'); unicode-range: U+7000-7FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 400; font-display: swap; src: url('./fonts/maple/regular-08.woff2') format('woff2'); unicode-range: U+8000-8FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 400; font-display: swap; src: url('./fonts/maple/regular-09.woff2') format('woff2'); unicode-range: U+9000-9FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 400; font-display: swap; src: url('./fonts/maple/regular-0e.woff2') format('woff2'); unicode-range: U+E000-EFFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 400; font-display: swap; src: url('./fonts/maple/regular-0f.woff2') format('woff2'); unicode-range: U+F000-FFFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 400; font-display: swap; src: url('./fonts/maple/regular-1f.woff2') format('woff2'); unicode-range: U+1F000-1FFFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 400; font-display: swap; src: url('./fonts/maple/regular-f0.woff2') format('woff2'); unicode-range: U+F0000-F0FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 400; font-display: swap; src: url('./fonts/maple/regular-f1.woff2') format('woff2'); unicode-range: U+F1000-F1FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 700; font-display: swap; src: url('./fonts/maple/bold-00.woff2') format('woff2'); unicode-range: U+0-FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 700; font-display: swap; src: url('./fonts/maple/bold-01.woff2') format('woff2'); unicode-range: U+1000-1FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 700; font-display: swap; src: url('./fonts/maple/bold-02.woff2') format('woff2'); unicode-range: U+2000-2FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 700; font-display: swap; src: url('./fonts/maple/bold-03.woff2') format('woff2'); unicode-range: U+3000-3FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 700; font-display: swap; src: url('./fonts/maple/bold-04.woff2') format('woff2'); unicode-range: U+4000-4FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 700; font-display: swap; src: url('./fonts/maple/bold-05.woff2') format('woff2'); unicode-range: U+5000-5FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 700; font-display: swap; src: url('./fonts/maple/bold-06.woff2') format('woff2'); unicode-range: U+6000-6FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 700; font-display: swap; src: url('./fonts/maple/bold-07.woff2') format('woff2'); unicode-range: U+7000-7FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 700; font-display: swap; src: url('./fonts/maple/bold-08.woff2') format('woff2'); unicode-range: U+8000-8FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 700; font-display: swap; src: url('./fonts/maple/bold-09.woff2') format('woff2'); unicode-range: U+9000-9FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 700; font-display: swap; src: url('./fonts/maple/bold-0e.woff2') format('woff2'); unicode-range: U+E000-EFFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 700; font-display: swap; src: url('./fonts/maple/bold-0f.woff2') format('woff2'); unicode-range: U+F000-FFFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 700; font-display: swap; src: url('./fonts/maple/bold-1f.woff2') format('woff2'); unicode-range: U+1F000-1FFFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 700; font-display: swap; src: url('./fonts/maple/bold-f0.woff2') format('woff2'); unicode-range: U+F0000-F0FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: normal; font-weight: 700; font-display: swap; src: url('./fonts/maple/bold-f1.woff2') format('woff2'); unicode-range: U+F1000-F1FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 400; font-display: swap; src: url('./fonts/maple/italic-00.woff2') format('woff2'); unicode-range: U+0-FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 400; font-display: swap; src: url('./fonts/maple/italic-01.woff2') format('woff2'); unicode-range: U+1000-1FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 400; font-display: swap; src: url('./fonts/maple/italic-02.woff2') format('woff2'); unicode-range: U+2000-2FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 400; font-display: swap; src: url('./fonts/maple/italic-03.woff2') format('woff2'); unicode-range: U+3000-3FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 400; font-display: swap; src: url('./fonts/maple/italic-04.woff2') format('woff2'); unicode-range: U+4000-4FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 400; font-display: swap; src: url('./fonts/maple/italic-05.woff2') format('woff2'); unicode-range: U+5000-5FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 400; font-display: swap; src: url('./fonts/maple/italic-06.woff2') format('woff2'); unicode-range: U+6000-6FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 400; font-display: swap; src: url('./fonts/maple/italic-07.woff2') format('woff2'); unicode-range: U+7000-7FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 400; font-display: swap; src: url('./fonts/maple/italic-08.woff2') format('woff2'); unicode-range: U+8000-8FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 400; font-display: swap; src: url('./fonts/maple/italic-09.woff2') format('woff2'); unicode-range: U+9000-9FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 400; font-display: swap; src: url('./fonts/maple/italic-0e.woff2') format('woff2'); unicode-range: U+E000-EFFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 400; font-display: swap; src: url('./fonts/maple/italic-0f.woff2') format('woff2'); unicode-range: U+F000-FFFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 400; font-display: swap; src: url('./fonts/maple/italic-1f.woff2') format('woff2'); unicode-range: U+1F000-1FFFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 400; font-display: swap; src: url('./fonts/maple/italic-f0.woff2') format('woff2'); unicode-range: U+F0000-F0FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 400; font-display: swap; src: url('./fonts/maple/italic-f1.woff2') format('woff2'); unicode-range: U+F1000-F1FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 700; font-display: swap; src: url('./fonts/maple/bolditalic-00.woff2') format('woff2'); unicode-range: U+0-FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 700; font-display: swap; src: url('./fonts/maple/bolditalic-01.woff2') format('woff2'); unicode-range: U+1000-1FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 700; font-display: swap; src: url('./fonts/maple/bolditalic-02.woff2') format('woff2'); unicode-range: U+2000-2FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 700; font-display: swap; src: url('./fonts/maple/bolditalic-03.woff2') format('woff2'); unicode-range: U+3000-3FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 700; font-display: swap; src: url('./fonts/maple/bolditalic-04.woff2') format('woff2'); unicode-range: U+4000-4FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 700; font-display: swap; src: url('./fonts/maple/bolditalic-05.woff2') format('woff2'); unicode-range: U+5000-5FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 700; font-display: swap; src: url('./fonts/maple/bolditalic-06.woff2') format('woff2'); unicode-range: U+6000-6FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 700; font-display: swap; src: url('./fonts/maple/bolditalic-07.woff2') format('woff2'); unicode-range: U+7000-7FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 700; font-display: swap; src: url('./fonts/maple/bolditalic-08.woff2') format('woff2'); unicode-range: U+8000-8FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 700; font-display: swap; src: url('./fonts/maple/bolditalic-09.woff2') format('woff2'); unicode-range: U+9000-9FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 700; font-display: swap; src: url('./fonts/maple/bolditalic-0e.woff2') format('woff2'); unicode-range: U+E000-EFFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 700; font-display: swap; src: url('./fonts/maple/bolditalic-0f.woff2') format('woff2'); unicode-range: U+F000-FFFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 700; font-display: swap; src: url('./fonts/maple/bolditalic-1f.woff2') format('woff2'); unicode-range: U+1F000-1FFFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 700; font-display: swap; src: url('./fonts/maple/bolditalic-f0.woff2') format('woff2'); unicode-range: U+F0000-F0FFF; }
+@font-face { font-family: 'Maple Mono Normal NL NF CN'; font-style: italic; font-weight: 700; font-display: swap; src: url('./fonts/maple/bolditalic-f1.woff2') format('woff2'); unicode-range: U+F1000-F1FFF; }
diff --git a/web/src/themes/typography.test.ts b/web/src/themes/typography.test.ts
index d79e142..cf103f7 100644
--- a/web/src/themes/typography.test.ts
+++ b/web/src/themes/typography.test.ts
@@ -31,3 +31,13 @@ describe('界面与正文排版设置', () => {
     expect(style.getPropertyValue('--rm-font-size')).toBe('24px')
   })
 })
+
+it('缺省或无效字体统一使用 Maple，保留用户已有的显式选择', () => {
+  expect(sanitizeDisplaySettings({})).toMatchObject({ textFont: 'maple', codeFont: 'maple' })
+  expect(sanitizeDisplaySettings({ textFont: 'unknown', codeFont: 'unknown' })).toMatchObject({ textFont: 'maple', codeFont: 'maple' })
+  for (const textFont of ['sans', 'serif', 'system', 'maple']) expect(sanitizeDisplaySettings({ textFont }).textFont).toBe(textFont)
+  for (const codeFont of ['jetbrains', 'system', 'maple']) expect(sanitizeDisplaySettings({ codeFont }).codeFont).toBe(codeFont)
+  applyDisplaySettings(DISPLAY_DEFAULTS)
+  expect(document.documentElement.style.getPropertyValue('--rm-font-editor')).toContain('Maple Mono Normal NL NF CN')
+  expect(document.documentElement.style.getPropertyValue('--rm-font-mono')).toContain('Maple Mono Normal NL NF CN')
+})
diff --git a/web/src/themes/typography.ts b/web/src/themes/typography.ts
index 2092987..592653e 100644
--- a/web/src/themes/typography.ts
+++ b/web/src/themes/typography.ts
@@ -1,15 +1,18 @@
 // 编辑器排版设置；账户、快捷键等设置不进入此模块。
+const maple = { label: 'Maple Mono Normal NL NF CN', css: "'Maple Mono Normal NL NF CN', monospace" }
 export const TEXT_FONTS = {
+  maple,
   sans: { label: 'Manrope · 清晰无衬线', css: "'Manrope', 'PingFang SC', 'Microsoft YaHei', sans-serif" },
   serif: { label: 'Noto Serif SC · 思源宋体', css: "'Noto Serif SC', 'Source Han Serif SC', serif" },
   system: { label: '系统字体', css: 'system-ui, sans-serif' },
 }
 export const CODE_FONTS = {
+  maple,
   jetbrains: { label: 'JetBrains Mono', css: "'JetBrains Mono', ui-monospace, monospace" },
   system: { label: '系统等宽字体', css: 'ui-monospace, monospace' },
 }
 export const UI_FONT_SIZE = { min: 14, max: 20, default: 14 }
-export const DISPLAY_DEFAULTS = { uiFontSize: UI_FONT_SIZE.default, fontSize: 16, contentWidth: 760, textFont: 'sans' as keyof typeof TEXT_FONTS, codeFont: 'jetbrains' as keyof typeof CODE_FONTS, lineHeight: 1.75, paragraphSpacing: 16, glassOpacity: .75 }
+export const DISPLAY_DEFAULTS = { uiFontSize: UI_FONT_SIZE.default, fontSize: 16, contentWidth: 760, textFont: 'maple' as keyof typeof TEXT_FONTS, codeFont: 'maple' as keyof typeof CODE_FONTS, lineHeight: 1.75, paragraphSpacing: 16, glassOpacity: .75 }
 export type DisplaySettings = typeof DISPLAY_DEFAULTS
 export function sanitizeDisplaySettings(raw: Record<string, unknown>): DisplaySettings {
   const ranged = (key: 'lineHeight' | 'paragraphSpacing' | 'glassOpacity', min: number, max: number) => typeof raw[key] === 'number' && Number.isFinite(raw[key]) && raw[key] >= min && raw[key] <= max ? raw[key] : DISPLAY_DEFAULTS[key]
@@ -17,8 +20,8 @@ export function sanitizeDisplaySettings(raw: Record<string, unknown>): DisplaySe
     uiFontSize: typeof raw.uiFontSize === 'number' && Number.isInteger(raw.uiFontSize) && raw.uiFontSize >= UI_FONT_SIZE.min && raw.uiFontSize <= UI_FONT_SIZE.max ? raw.uiFontSize : UI_FONT_SIZE.default,
     fontSize: typeof raw.fontSize === 'number' && Number.isFinite(raw.fontSize) && raw.fontSize > 0 ? raw.fontSize : 16,
     contentWidth: typeof raw.contentWidth === 'number' && [0, 680, 760, 960].includes(raw.contentWidth) ? raw.contentWidth : 760,
-    textFont: raw.textFont === 'serif' || raw.textFont === 'system' ? raw.textFont : 'sans',
-    codeFont: raw.codeFont === 'system' ? 'system' : 'jetbrains',
+    textFont: raw.textFont === 'sans' || raw.textFont === 'serif' || raw.textFont === 'system' ? raw.textFont : 'maple',
+    codeFont: raw.codeFont === 'jetbrains' || raw.codeFont === 'system' ? raw.codeFont : 'maple',
     lineHeight: ranged('lineHeight', 1.2, 2.5), paragraphSpacing: ranged('paragraphSpacing', 0, 40), glassOpacity: ranged('glassOpacity', .4, 1),
   }
 }