github-ui-skills

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GitHub UI Skills

GitHub UI 设计规范

Opinionated constraints for building GitHub-style interfaces with AI agents.

为使用AI Agent构建GitHub风格界面制定的约束性指南。

When to Apply

适用场景

Reference these guidelines when:

Building dark-mode interfaces
Creating GitHub-inspired design systems
Implementing UIs with Inter font and 4px grid

在以下场景中参考本指南：

构建暗色模式界面
创建受GitHub启发的设计系统
实现采用Inter字体和4px网格的UI

Colors

色彩规范

MUST use dark backgrounds (lightness < 20) for primary surfaces - detected lightness: 12
MUST use
```
#10131A
```
as page background (
```
surface-base
```
)
MUST use
```
#030036
```
for primary actions and focus states (
```
accent
```
)
SHOULD reduce color palette (currently 23 colors detected)
MUST maintain text contrast ratio of at least 4.5:1 for accessibility

主界面必须使用深色背景（亮度<20）——当前检测亮度为12
必须使用
```
#10131A
```
作为页面背景（
```
surface-base
```
）
主要操作和焦点状态（
```
accent
```
）必须使用
```
#030036
```
建议精简调色板（当前检测到23种颜色）
为保证可访问性，文本对比度必须至少达到4.5:1

Semantic Tokens

语义化令牌

Token	HEX	RGB	Usage
`surface-base`	#10131A	rgb(16,19,26)	Page background
`surface-raised`	#11122F	rgb(17,18,47)	Cards, modals, raised surfaces
`surface-overlay`	#186D29	rgb(24,109,41)	Overlays, tooltips, dropdowns
`text-primary`	#878A91	rgb(135,138,145)	Headings, body text
`text-secondary`	#74777E	rgb(116,119,126)	Secondary, muted text
`text-tertiary`	#525C71	rgb(82,92,113)	Additional text
`border-default`	#1A1835	rgb(26,24,53)	Subtle borders, dividers
`success`	#A3D4AD	rgb(163,212,173)	Success states, confirmations
`accent`	#030036	rgb(3,0,54)	Primary actions, links, focus

令牌	十六进制值	RGB值	用途
`surface-base`	#10131A	rgb(16,19,26)	页面背景
`surface-raised`	#11122F	rgb(17,18,47)	卡片、模态框、凸起界面
`surface-overlay`	#186D29	rgb(24,109,41)	遮罩、提示框、下拉菜单
`text-primary`	#878A91	rgb(135,138,145)	标题、正文文本
`text-secondary`	#74777E	rgb(116,119,126)	次要、弱化文本
`text-tertiary`	#525C71	rgb(82,92,113)	辅助文本
`border-default`	#1A1835	rgb(26,24,53)	细微边框、分隔线
`success`	#A3D4AD	rgb(163,212,173)	成功状态、确认提示
`accent`	#030036	rgb(3,0,54)	主要操作、链接、焦点

Typography

排版规范

MUST use
```
Inter
```
as primary font family
SHOULD use single font family for consistency
MUST use
```
53px
```
/
```
700
```
for primary headings
MUST use
```
29px
```
/
```
400
```
for body text
MUST limit font weights to: regular, bold, light
MUST use
```
text-balance
```
for headings and
```
text-pretty
```
for body text
SHOULD use
```
tabular-nums
```
for numeric data
NEVER modify letter-spacing unless explicitly requested

必须使用
```
Inter
```
作为主要字体
为保证一致性，建议使用单一字体
一级标题必须使用
```
53px
```
/ 700字重
正文必须使用
```
29px
```
/ 400字重
字体字重必须限制为：常规、粗体、轻量
标题必须使用
```
text-balance
```
，正文必须使用
```
text-pretty
```
数字数据建议使用
```
tabular-nums
```
除非明确要求，否则不得修改字间距

Text Styles

文本样式

Style	Font	Size	Weight	Color	Count
`heading-1`	Inter	53px	700	#E3E4EA	1
`body`	Inter	29px	400	#606A7A	1
`text-18px`	Inter	18px	400	#A7A8BF	1
`text-16px`	Inter	16px	300	#989BA2	1
`text-15px`	Inter	15px	300	#3F4249	1
`text-15px`	Inter	15px	400	#7F848A	1
`text-15px`	Inter	15px	400	#B5B6C4	1
`text-15px`	Inter	15px	400	#A3D4AD	1
`text-15px`	Inter	15px	400	#6B6B71	1
`text-15px`	Inter	15px	400	#9796B1	1

样式	字体	字号	字重	颜色	数量
`heading-1`	Inter	53px	700	#E3E4EA	1
`body`	Inter	29px	400	#606A7A	1
`text-18px`	Inter	18px	400	#A7A8BF	1
`text-16px`	Inter	16px	300	#989BA2	1
`text-15px`	Inter	15px	300	#3F4249	1
`text-15px`	Inter	15px	400	#7F848A	1
`text-15px`	Inter	15px	400	#B5B6C4	1
`text-15px`	Inter	15px	400	#A3D4AD	1
`text-15px`	Inter	15px	400	#6B6B71	1
`text-15px`	Inter	15px	400	#9796B1	1

Typography Reference

排版参考

Font Families:

```
Inter
```
(used 54x)

Font Sizes: 4px, 5px, 9px, 10px, 11px, 12px, 13px, 14px, 15px, 16px, 18px, 29px, 53px

字体家族：

```
Inter
```
（使用54次）

字号： 4px, 5px, 9px, 10px, 11px, 12px, 13px, 14px, 15px, 16px, 18px, 29px, 53px

Spacing

间距规范

MUST use 4px grid for spacing
SHOULD use spacing from scale: 2px, 3px, 4px, 5px, 6px, 8px, 11px, 14px
SHOULD use 5px as default gap between elements
NEVER use arbitrary spacing values (use design scale)
SHOULD maintain consistent padding within containers

间距必须使用4px网格系统
建议使用以下间距刻度：2px、3px、4px、5px、6px、8px、11px、14px
元素间默认间距建议使用5px
不得使用任意间距值（需遵循设计刻度）
容器内边距应保持一致

Borders

边框规范

MUST use border-radius from scale: 3px, 4px, 5px, 9px, 15px, 22px, 29px
SHOULD use 22px+ radius for pill-shaped elements
SHOULD limit border widths to: 1px, 2px, 3px, 4px
SHOULD use 3px as default border-radius
NEVER use arbitrary border-radius values (use design scale)
SHOULD use subtle borders (1px) for element separation

圆角必须使用以下刻度：3px、4px、5px、9px、15px、22px、29px
胶囊形元素建议使用22px及以上的圆角
边框宽度建议限制为：1px、2px、3px、4px
默认圆角建议使用3px
不得使用任意圆角值（需遵循设计刻度）
元素分隔建议使用细微边框（1px）

Border Radius Reference

圆角参考

Scale: 3px, 4px, 5px, 9px, 15px, 22px, 29px

刻度： 3px, 4px, 5px, 9px, 15px, 22px, 29px

Layout

布局规范

MUST design for 1920px base viewport width
SHOULD use consistent element widths: 10px, 9px, 11px, 28px, 21px
SHOULD maintain text-heavy layout with clear hierarchy
NEVER use
```
h-screen
```
, use
```
h-dvh
```
for full viewport height
MUST respect
```
safe-area-inset
```
for fixed elements
SHOULD use
```
size-*
```
for square elements instead of
```
w-*
```
+
```
h-*
```

必须以1920px作为基准视口宽度进行设计
建议使用统一的元素宽度：10px、9px、11px、28px、21px
应保持以文本为主的布局，并具备清晰的层级结构
不得使用
```
h-screen
```
，全屏高度需使用
```
h-dvh
```
固定定位元素必须遵循
```
safe-area-inset
```
规范
方形元素建议使用
```
size-*
```
而非
```
w-*
```
+
```
h-*
```

Detected Layout Patterns

检测到的布局模式

Main Content: width: 1920px, height: 1080px
Main Content: width: 1920px, height: 1004px
Header: height: 64px

主内容区：宽度1920px，高度1080px
主内容区：宽度1920px，高度1004px
头部：高度64px

Components

组件规范

MUST use
```
0px
```
height for input fields

输入框必须使用
```
0px
```
高度

Buttons

按钮

Variant	Background	Text	Border	Height	Radius
Ghost	transparent	#B5B6C4	none	-	-

变体	背景	文本	边框	高度	圆角
Ghost	transparent	#B5B6C4	none	-	-

Inputs

输入框

Height:
```
0px
```

高度：
```
0px
```

Interactive States

交互状态

Focus

焦点状态

MUST use
```
2px
```
outline with accent color (
```
#030036
```
)
MUST use
```
2px
```
outline-offset
NEVER remove focus indicators

必须使用
```
2px
```
宽的强调色（
```
#030036
```
）外边框
必须设置
```
2px
```
的外边框偏移量
不得移除焦点指示器

Hover

悬停状态

Buttons (primary): lighten background by 10%
Buttons (secondary): use
```
#11122F
```
background
List items: use
```
#11122F
```
background

主按钮：背景亮度提高10%
次级按钮：使用
```
#11122F
```
作为背景
列表项：使用
```
#11122F
```
作为背景

Disabled

禁用状态

MUST use
```
opacity: 0.5
```
MUST use
```
cursor: not-allowed
```

必须设置
```
opacity: 0.5
```
必须设置
```
cursor: not-allowed
```

Interaction

交互规范

MUST use an
```
AlertDialog
```
for destructive or irreversible actions
SHOULD use structural skeletons for loading states
MUST show errors next to where the action happens
NEVER block paste in
```
input
```
or
```
textarea
```
elements
MUST add an
```
aria-label
```
to icon-only buttons

破坏性或不可逆操作必须使用
```
AlertDialog
```
组件
加载状态建议使用结构化骨架屏
错误提示必须显示在操作发生的位置旁
不得禁止
```
input
```
或
```
textarea
```
元素的粘贴功能
纯图标按钮必须添加
```
aria-label
```

Animation

动画规范

NEVER add animation unless it is explicitly requested
MUST animate only compositor props (
```
transform
```
,
```
opacity
```
)
NEVER animate layout properties (
```
width
```
,
```
height
```
,
```
top
```
,
```
left
```
,
```
margin
```
,
```
padding
```
)
SHOULD use
```
ease-out
```
on entrance animations
NEVER exceed
```
200ms
```
for interaction feedback
SHOULD respect
```
prefers-reduced-motion
```

除非明确要求，否则不得添加动画
仅允许对合成器属性（
```
transform
```
、
```
opacity
```
）执行动画
不得对布局属性（
```
width
```
、
```
height
```
、
```
top
```
、
```
left
```
、
```
margin
```
、
```
padding
```
）执行动画
入场动画建议使用
```
ease-out
```
缓动函数
交互反馈动画时长不得超过
```
200ms
```
应遵循
```
prefers-reduced-motion
```
设置

Performance

性能规范

NEVER animate large
```
blur()
```
or
```
backdrop-filter
```
surfaces
NEVER apply
```
will-change
```
outside an active animation
NEVER use
```
useEffect
```
for anything that can be expressed as render logic

不得对大面积元素执行
```
blur()
```
或
```
backdrop-filter
```
动画
不得在非活跃动画场景下使用
```
will-change
```
任何可通过渲染逻辑实现的功能，不得使用
```
useEffect
```