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docs: v5 site upgrade (#38328) * build: try to use dumi as doc tool * docs: migrate demo structure to dumi way * refactor: use type export & import * docs: migrate demo previewer to dumi * docs: create empty layout & components * docs: apply custom rehype plugin * docs: create empty extra pages * docs: Add Banner component * chore: move theme tsconfig.json * docs: home page init * docs: migrate header (#37896) * docs: header * docs: update * docs: home init * clean up * test: fix site lint * chore: tsc ignore demo * chore: dumi demo migrate script * chore: cards * docs: home layout * docs: Update locale logic * docs: fix getLink logic * chore: fix ci (#37899) * chore: fix ci * ci: remove check-ts-demo * ci: preview build * test: ignore demo.tsx * chore: update script * test: update snapshot * test: update node and image test * chore: add .surgeignore * docs: layout providers (#37908) * docs: add components sidebar (#37923) * docs: sidebar * docs: update docs title * docs: update design doc * chore: code clean * docs: handle changelog page * docs: add title * docs: add subtitle * docs: active header nav * chore: code clean * docs: overview * chore: code clean * docs: update intl (#37918) * docs: update intl * chore: code clean * docs: update favicons * chore: update testPathIgnorePatterns * chore: code clean * chore: code clean * chore: copy 404.html (#37996) * docs: Home page theme picker * chore: Update migrate script * docs: home page update * docs: theme editor style * docs: theme lang * chore: update migrate.js * docs: fix demo (#38094) * chore: update migrate.js * docs: update md * docs: update demo * test: fix snapshot * chore: move debug to code attr in migrate script * chore: update md Co-authored-by: PeachScript <scdzwyxst@gmail.com> * feat: overview page * feat: Migrate `404` page (#38118) * feat: migrate IconSearch component (#37916) * feat<site/IconSearch>: copy IconDisplay from site to .dumi * feat<site/IconSearch>: change docs of icon * feat<site/IconSearch>: tweak * feat<site/IconSearch>: use useIntl instead of injectIntl * feat<site/IconSearch>: fix ts type error * feat<site/IconSearch>: use intl.formatMessage to render text * docs: Adjust home btn sizw * docs: Update doc * feat: v5 site overview page (#38131) * feat: site * fix: fix * feat: v5 site overview page * fix: fix path * fix: fix * fix: fix * docs: fix margin logic * feat: v5 site change-log page (#38137) * feat: v5 site change-log page (#38162) * docs: site redirect to home pag * docs: theme picker * docs: use react-intl from dumi (#38183) * docs: Theme Picker * docs: update dumi config * docs: home back fix * docs: picker colorful * docs: locale of it * docs: update components desc * docs: site of links * docs: update components list * docs: update desc * feat: Migrate `DemoWrapper` component (#38166) * feat: Migrate `DemoWrapper` component * feat: remove invalid comments and add comment for `key` prop * docs: FloatButton pure panel * chore: update demo * chore: update dumi config * Revert "chore: update demo" This reverts commit 028265d3ba5987df5f13c3e9d42cf76cb1812b2e. * chore: test logic adjust to support cnpm modules * chore: add locale alias * docs: /index to / * docs: add locale redirect head script * chore: adjust compact * docs: fix missing token * feat: compact switch * chore: code clean * docs: update home * docs: fix radius token * docs: hash of it * chore: adjust home page * docs: Add background map * docs: site theme bac logic * docs: avatar * docs: update logo color * docs: home banner * docs: adjust tour size * docs: purepanl update * docs: transfooter * docs: update banner gif * docs: content (#38361) * docs: title & EditButton * docs: content * chore: fix toc * docs: resource page * docs: transform resource data from hast * docs: filename & Resource Card * chore: enable prerender * chore: remove less * docs: toc style * chore: fix lint * docs: fix Layout page * docs: fix CP page * chore: update demos * docs: workaround for export dynamic html * chore: enable demo eslint * docs: table style * fix: header shadow * chore: update snapshot * fix: toc style * docs: add title * docs: Adjust site * feat: helmet * docs: site css * fix: description * feat: toc debug * docs: update config-provider * feat: use colorPanel * fix: colorPanel value * feat: anchor ink ball style * feat: apply theme editor * fix: code block style * chore: update demo * chore: fix lint * chore: code clean * chore: update snapshot * feat: ts2js * chore: description * docs: site ready for ssr includes: - move client render logic to useEffect in site theme - extract antd cssinjs to a single css file like bisheng - workaround to support react@18 pipeableStream for emotion * chore: bump testing lib * docs: font size of title * chore: remove react-sortable-hoc * chore: update snapshot * chore: update script Co-authored-by: PeachScript <scdzwyxst@gmail.com> Co-authored-by: MadCcc <1075746765@qq.com> Co-authored-by: zqran <uuxnet@gmail.com> Co-authored-by: TrickyPi <530257315@qq.com> Co-authored-by: lijianan <574980606@qq.com>
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group: 全局样式
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order: 3
title: 字体
---
字体是体系化界面设计中最基本的构成之一。
我们的用户通过文本来理解内容和完成工作,科学的字体系统将大大提升用户的阅读体验及工作效率。Ant Design 字体方案,是基于「动态秩序」的设计原则,结合了自然对数以及音律的规则得出的,再经过了大量的蚂蚁中后台产品验证之后,推荐给大家。在中后台视觉体系中定义字体系统,我们建议从下面五个方面出发:
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1. 字体家族
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2. 主字体
3. 字阶与行高
4. 字重
5. 字体颜色
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---
## 字体家族
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优秀的字体系统首先是要选择合适的字体家族。Ant Design 的字体家族中优先使用系统默认的界面字体,同时提供了一套利于屏显的备用字体库,来维护在不同平台以及浏览器的显示下,字体始终保持良好的易读性和可读性,体现了友好、稳定和专业的特性。
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```css
@font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial,
'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol',
'Noto Color Emoji';
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```
> 参考自 https://www.smashingmagazine.com/2015/11/using-system-ui-fonts-practical-guide/ 和 http://markdotto.com/2018/02/07/github-system-fonts/
另外,在中后台系统中,数字经常需要进行纵向对比展示,我们单独将数字的字体 [font-variant-numeric](https://www.fonts.com/content/learning/fontology/level-3/numbers/proportional-vs-tabular-figures) 设置为 `tabular-nums`,使其为等宽字体。
> 参考 https://stackoverflow.com/questions/32660748/how-to-use-apples-new-san-francisco-font-on-a-webpage#comment78509178_32660790
## 主字体
我们基于电脑显示器阅读距离(50 cm)以及最佳阅读角度(0.3)对 Ant Design 的主字体进行了一次升级,从原先的 12 上升至 14,以保证在多数常用显示器上的用户阅读效率最佳。
<div style="text-align:center;margin:40px 0;">
<img width="600" src="https://gw.alipayobjects.com/zos/rmsportal/yriUFbqOPtVniYYiikfb.png">
</div>
## 字阶与行高
字阶和行高决定着一套字体系统的动态与秩序之美。字阶是指一系列有规律的不同尺寸的字体。行高可以理解为一个包裹在字体外面的无形的盒子。
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<div style="text-align:center;margin:40px 0;">
<img width="600" src="https://gw.alipayobjects.com/zos/rmsportal/xpykKKFJQorFJltdXkie.png">
</div>
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Ant Design 受到 5 音阶以及自然律的启发定义了 10 个不同尺寸的字体以及与之相对应的行高。
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<img src="https://gw.alipayobjects.com/zos/rmsportal/iFjgfIBExksqCqGMwUlw.png">
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在 Ant Design 的视觉体系中,我们建议的主要字体为 14,与之对应的行高为 22。其余的字阶的选择可根据具体情况进行自由的定义。建议在一个系统设计中(展示型页面除外),字阶的选择尽量控制在 3-5 种之间,保持克制的原则。
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## 字重
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字重的选择同样基于秩序、稳定、克制的原则。多数情况下,只出现 regular 以及 medium 的两种字体重量,分别对应代码中的 400 和 500。在英文字体加粗的情况下会采用 semibold 的字体重量,对应代码中的 600。
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<div class="font-samples">
<div>
<img src="https://gw.alipayobjects.com/zos/rmsportal/orIVrEOZIpjMbqZGiXEi.png" />
</div>
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<div>
<img src="https://gw.alipayobjects.com/zos/rmsportal/sasWhUzTGjlZKftukraH.png" />
</div>
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<div>
<img src="https://gw.alipayobjects.com/zos/rmsportal/QqxifAZlISrSUwnlonyx.png" />
</div>
</div>
<style>
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.font-samples {
display: flex;
}
</style>
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## 字体颜色
<ImagePreview>
<TokenCompare tokenNames="colorTextHeading|colorText|colorTextSecondary|colorTextDisabled|colorBorder|colorSplit|colorBgLayout"></TokenCompare>
</ImagePreview>
文本颜色如果和背景颜色太接近就会难以阅读。考虑到无障碍设计的需求,我们参考了 WCAG 的标准,将正文文本、标题和背景色之间保持在了 7:1 以上的 AAA 级对比度。
## 建议
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字体系统的构建,是「动态秩序之美」的第一步。在实际的设计中,我们还有三点建议:
1. **建立体系化的设计思路:** 在同一个系统的 UI 设计中先建立体系化的设计思路,对主、次、辅助、标题、展示等类别的字体做统一的规划,再落地到具体场景中进行微调。建立体系化的设计思路有助于强化横向字体落地的一致性,提高字体应用的性价比,减少不必要的样式浪费。
1. **少即是多:** 在视觉展现上能够用尽量少的样式去实现设计目的。避免毫无意义的使用大量字阶、颜色、字重强调视觉重点或对比关系。
1. **尝试让字体像音符一样跳跃:** 在需要拉开差距的时候可以尝试在字阶表中跳跃地选择字体大小,会令字阶之间产生一种微妙的韵律感。