substack-ui-skills

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Substack UI Skills

Substack UI 设计规范

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

使用AI Agent构建Substack风格界面的专属约束条件。

When to Apply

适用场景

Reference these guidelines when:

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

在以下场景中参考本指南：

构建浅色模式界面
创建受Substack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

SHOULD use light backgrounds for primary surfaces
MUST use
```
#FFFFFF
```
as page background (
```
surface-base
```
)
SHOULD reduce color palette (currently 15 colors detected)
MUST maintain text contrast ratio of at least 4.5:1 for accessibility

主界面区域应使用浅色背景
页面背景必须使用
```
#FFFFFF
```
（
```
surface-base
```
）
应精简调色板（当前检测到15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

语义令牌

Token	HEX	RGB	Usage
`surface-base`	#FFFFFF	rgb(255,255,255)	Page background
`surface-raised`	#FC5013	rgb(252,80,19)	Cards, modals, raised surfaces
`surface-overlay`	#E9E9E9	rgb(233,233,233)	Overlays, tooltips, dropdowns
`text-primary`	#999999	rgb(153,153,153)	Headings, body text
`text-2`	#515151	rgb(81,81,81)	Additional text
`text-secondary`	#717171	rgb(113,113,113)	Secondary, muted text
`border-default`	#E7E7E7	rgb(231,231,231)	Subtle borders, dividers
`destructive`	#E26739	rgb(226,103,57)	Error states, delete actions

令牌	十六进制值	RGB值	用途
`surface-base`	#FFFFFF	rgb(255,255,255)	页面背景
`surface-raised`	#FC5013	rgb(252,80,19)	卡片、模态框、凸起界面
`surface-overlay`	#E9E9E9	rgb(233,233,233)	遮罩层、提示框、下拉菜单
`text-primary`	#999999	rgb(153,153,153)	标题、正文文本
`text-2`	#515151	rgb(81,81,81)	辅助文本
`text-secondary`	#717171	rgb(113,113,113)	次要、弱化文本
`border-default`	#E7E7E7	rgb(231,231,231)	细微边框、分隔线
`destructive`	#E26739	rgb(226,103,57)	错误状态、删除操作

Typography

排版规范

MUST use
```
Inter
```
as primary font family
SHOULD use single font family for consistency
MUST use
```
36px
```
/
```
semi_bold
```
for primary headings
MUST use
```
17px
```
/
```
500
```
for body text
SHOULD reduce font weights (currently 4 detected)
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，应使用单一字体族
一级标题必须使用
```
36px
```
/
```
semi_bold
```
（半粗体）
正文文本必须使用
```
17px
```
/
```
500
```
（中等字重）
应精简字重数量（当前检测到4种）
标题必须使用
```
text-balance
```
（文本平衡），正文必须使用
```
text-pretty
```
（优美文本）
数字数据应使用
```
tabular-nums
```
（等宽数字）
除非明确要求，否则绝不能修改字间距

Text Styles

文本样式

Style	Font	Size	Weight	Color	Count
`heading-1`	Inter	36px	semi_bold	#BCDBD7	1
`text-19px`	Inter	19px	semi_bold	#4C4D4D	1
`body`	Inter	17px	500	#535353	1
`body-secondary`	Inter	16px	400	#717171	1
`body-secondary`	Inter	16px	400	#6E6E6F	1
`body-secondary`	Inter	16px	400	#F5C0A3	1
`body-secondary`	Inter	15px	400	#969696	2
`body-secondary`	Inter	15px	500	#515151	1
`body-secondary`	Inter	15px	400	#6F6F6F	1
`body-secondary`	Inter	15px	500	#5D5D5D	1

样式	字体	字号	字重	颜色	使用次数
`heading-1`	Inter	36px	semi_bold	#BCDBD7	1
`text-19px`	Inter	19px	semi_bold	#4C4D4D	1
`body`	Inter	17px	500	#535353	1
`body-secondary`	Inter	16px	400	#717171	1
`body-secondary`	Inter	16px	400	#6E6E6F	1
`body-secondary`	Inter	16px	400	#F5C0A3	1
`body-secondary`	Inter	15px	400	#969696	2
`body-secondary`	Inter	15px	500	#515151	1
`body-secondary`	Inter	15px	400	#6F6F6F	1
`body-secondary`	Inter	15px	500	#5D5D5D	1

Typography Reference

排版参考

Font Families:

```
Inter
```
(used 43x)

Font Sizes: 5px, 9px, 10px, 11px, 12px, 13px, 14px, 15px, 16px, 17px, 19px, 36px

字体族：

```
Inter
```
（使用43次）

字号： 5px, 9px, 10px, 11px, 12px, 13px, 14px, 15px, 16px, 17px, 19px, 36px

Spacing

间距规范

MUST use 4px grid for spacing
SHOULD use spacing from scale: 1px, 3px, 4px, 5px, 8px, 9px, 10px, 13px
SHOULD use 4px as default gap between elements
NEVER use arbitrary spacing values (use design scale)
SHOULD maintain consistent padding within containers

必须使用4px网格进行间距布局
应使用以下间距刻度值：1px, 3px, 4px, 5px, 8px, 9px, 10px, 13px
元素间默认间距应使用4px
绝不能使用任意间距值（必须遵循设计刻度）
容器内的内边距应保持一致

Borders

边框规范

MUST use border-radius from scale: 3px, 4px, 6px, 7px, 8px, 9px, 16px, 18px
MUST use 1px border width consistently
SHOULD use 9px as default border-radius
NEVER use arbitrary border-radius values (use design scale)
SHOULD use subtle borders (1px) for element separation

必须使用以下圆角刻度值：3px, 4px, 6px, 7px, 8px, 9px, 16px, 18px
必须统一使用1px的边框宽度
默认圆角应使用9px
绝不能使用任意圆角值（必须遵循设计刻度）
应使用细微边框（1px）来分隔元素

Border Radius Reference

圆角参考

Scale: 3px, 4px, 6px, 7px, 8px, 9px, 16px, 18px

刻度值： 3px, 4px, 6px, 7px, 8px, 9px, 16px, 18px

Layout

布局规范

MUST design for 1920px base viewport width
SHOULD use consistent element widths: 12px, 16px, 18px, 17px, 22px
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
应使用统一的元素宽度：12px, 16px, 18px, 17px, 22px
应保持以文本为主的布局，并具备清晰的层级结构
绝不能使用
```
h-screen
```
，应使用
```
h-dvh
```
来设置全屏高度
固定元素必须考虑
```
safe-area-inset
```
（安全区域内边距）
方形元素应使用
```
size-*
```
，而非同时设置
```
w-*
```
+
```
h-*
```

Detected Layout Patterns

已检测到的布局模式

Main Content: width: 1920px, height: 1080px

主内容区域：宽度: 1920px, 高度: 1080px

Components

组件规范

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

输入框的高度必须设置为
```
0px
```

Buttons

按钮

Variant	Background	Text	Border	Height	Radius
Ghost	transparent	#515151	none	-	-

变体	背景	文本	边框	高度	圆角
幽灵按钮	透明	#515151	无	-	-

Inputs

输入框

Height:
```
0px
```

高度:
```
0px
```

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宽的强调色（
```
#5E6AD2
```
）外边框
必须设置2px的外边框偏移量
绝不能移除聚焦指示器

Hover

悬停状态

Buttons (primary): lighten background by 10%
Buttons (secondary): use
```
#FC5013
```
background
List items: use
```
#FC5013
```
background

主按钮：背景色提亮10%
次要按钮：使用
```
#FC5013
```
作为背景色
列表项：使用
```
#FC5013
```
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

执行破坏性或不可逆操作时，必须使用
```
AlertDialog
```
（警告对话框）
加载状态应使用结构化骨架屏
错误提示必须显示在操作发生的位置附近
绝不能禁止在
```
input
```
或
```
textarea
```
元素中粘贴内容
纯图标按钮必须添加
```
aria-label
```
（无障碍标签）

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，否则绝不能添加动画
只能对合成器属性（
```
transform
```
、
```
opacity
```
）执行动画
绝不能对布局属性（
```
width
```
、
```
height
```
、
```
top
```
、
```
left
```
、
```
margin
```
、
```
padding
```
）执行动画
入场动画应使用
```
ease-out
```
缓动函数
交互反馈的动画时长绝不能超过200ms
应遵循
```
prefers-reduced-motion
```
（减少动画偏好）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

绝不能对大面积的
```
blur()
```
或
```
backdrop-filter
```
（背景滤镜）区域执行动画
绝不能在非活跃动画中使用
```
will-change
```
属性
任何可通过渲染逻辑实现的功能，绝不能使用
```
useEffect
```