posthog-ui-skills

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English

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Chinese

Posthog UI Skills

Posthog UI 设计指南

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

这是为AI Agent构建Posthog风格界面而制定的约束性设计规范。

When to Apply

适用场景

Reference these guidelines when:

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

以下场景请参考本指南：

构建暗色模式界面
打造Posthog风格的设计系统
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: 0
MUST use
```
#000000
```
as page background (
```
surface-base
```
)
SHOULD limit color palette to 5 distinct colors
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0
页面背景必须使用
```
#000000
```
（对应
```
surface-base
```
）
建议将调色板限制为5种不同颜色
为保障可访问性，文本对比度必须至少达到4.5:1

Semantic Tokens

语义令牌

Token	HEX	RGB	Usage
`surface-base`	#000000	rgb(0,0,0)	Page background
`surface-raised`	#E38B20	rgb(227,139,32)	Cards, modals, raised surfaces
`text-primary`	#52290C	rgb(82,41,12)	Headings, body text
`text-secondary`	#55554A	rgb(85,85,74)	Secondary, muted text
`border-default`	#C17C25	rgb(193,124,37)	Subtle borders, dividers
`destructive`	#52290C	rgb(82,41,12)	Error states, delete actions
`warning`	#C17C25	rgb(193,124,37)	Warning states, cautions

令牌	十六进制色值	RGB值	用途
`surface-base`	#000000	rgb(0,0,0)	页面背景
`surface-raised`	#E38B20	rgb(227,139,32)	卡片、模态框、凸起界面
`text-primary`	#52290C	rgb(82,41,12)	标题、正文文本
`text-secondary`	#55554A	rgb(85,85,74)	次要、弱化文本
`border-default`	#C17C25	rgb(193,124,37)	细微边框、分隔线
`destructive`	#52290C	rgb(82,41,12)	错误状态、删除操作
`warning`	#C17C25	rgb(193,124,37)	警告状态、提示信息

Typography

排版规范

MUST use
```
Inter
```
as primary font family
SHOULD use single font family for consistency
MUST use
```
14px
```
/
```
400
```
for primary headings
MUST limit font weights to: regular, 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
```
作为主要字体族
为保证一致性，建议使用单一字体族
一级标题必须使用
```
14px
```
/
```
400
```
字号和字重
字体字重必须限制为：常规（regular）、轻量（light）
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，否则不得修改字符间距

Text Styles

文本样式

Style	Font	Size	Weight	Color	Count
`heading-1`	Inter	14px	400	#626257	1
`heading-2`	Inter	13px	300	#545449	1
`heading-3`	Inter	12px	400	#5B5B50	1
`caption`	Inter	11px	400	#58584D	1
`label`	Inter	10px	400	#52290C	1
`label`	Inter	10px	400	#55554A	1
`label`	Inter	10px	400	#56564B	1

样式	字体	字号	字重	颜色	数量
`heading-1`	Inter	14px	400	#626257	1
`heading-2`	Inter	13px	300	#545449	1
`heading-3`	Inter	12px	400	#5B5B50	1
`caption`	Inter	11px	400	#58584D	1
`label`	Inter	10px	400	#52290C	1
`label`	Inter	10px	400	#55554A	1
`label`	Inter	10px	400	#56564B	1

Typography Reference

排版参考

Font Families:

```
Inter
```
(used 7x)

Font Sizes: 10px, 11px, 12px, 13px, 14px

字体族：

```
Inter
```
（使用7次）

字号： 10px、11px、12px、13px、14px

Spacing

间距规范

MUST use 4px grid for spacing
SHOULD use spacing from scale: 3px, 4px, 9px, 10px
SHOULD use 4px 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：3px、4px、9px、10px
元素间默认间距建议使用4px
不得使用任意间距值（需遵循设计刻度）
容器内的内边距应保持一致

Borders

边框规范

MUST use border-radius from scale: 3px
MUST use 1px border width consistently
SHOULD use 3px as default border-radius
NEVER use arbitrary border-radius values (use design scale)
SHOULD use subtle borders (1px) for element separation

边框圆角必须使用以下刻度：3px
边框宽度必须统一使用1px
默认边框圆角建议使用3px
不得使用任意边框圆角值（需遵循设计刻度）
元素分隔建议使用细微边框（1px）

Border Radius Reference

边框圆角参考

Scale: 3px

刻度： 3px

Layout

布局规范

MUST design for 1920px base viewport width
SHOULD use consistent element widths: 41px, 24px, 43px, 857px, 12px
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：41px、24px、43px、857px、12px
不得使用
```
h-screen
```
，需使用
```
h-dvh
```
实现全屏视口高度
固定元素必须遵循
```
safe-area-inset
```
安全区域规则
方形元素建议使用
```
size-*
```
，而非同时设置
```
w-*
```
+
```
h-*
```

Detected Layout Patterns

已检测到的布局模式

Header: height: 39px
Main Content: width: 1920px, height: 1050px
Main Content: width: 1920px, height: 1043px

页眉：高度39px
主内容区：宽度1920px，高度1050px
主内容区：宽度1920px，高度1043px

Components

组件规范

Buttons

按钮

Variant	Background	Text	Border	Height	Radius
Ghost	transparent	#52290C	none	-	-

变体	背景色	文本	边框	高度	圆角
Ghost	transparent	#52290C	none	-	-

Interactive States

交互状态

Focus

聚焦状态

MUST use
```
2px
```
outline with accent color (
```
#5E6AD2
```
)
MUST use
```
2px
```
outline-offset
NEVER remove focus indicators

必须使用
```
2px
```
宽度的强调色（
```
#5E6AD2
```
）外轮廓
必须设置
```
2px
```
的外轮廓偏移量
不得移除聚焦指示器

Hover

悬停状态

Buttons (primary): lighten background by 10%
Buttons (secondary): use
```
#E38B20
```
background
List items: use
```
#E38B20
```
background

主按钮：背景色提亮10%
次要按钮：使用
```
#E38B20
```
作为背景色
列表项：使用
```
#E38B20
```
作为背景色

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

交互行为

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
```
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附近
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
必须仅对合成器属性（
```
transform
```
、
```
opacity
```
）执行动画
不得对布局属性（
```
width
```
、
```
height
```
、
```
top
```
、
```
left
```
、
```
margin
```
、
```
padding
```
）执行动画
进入动画建议使用
```
ease-out
```
缓动函数
交互反馈动画时长不得超过
```
200ms
```
必须遵循
```
prefers-reduced-motion
```
（减少动画偏好设置）

Performance

性能要求

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

不得对大面积区域执行
```
blur()
```
或
```
backdrop-filter
```
动画
不得在非活跃动画中使用
```
will-change
```
任何可通过渲染逻辑实现的内容，不得使用
```
useEffect
```