arc-ui-skills

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Original

English

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Translation

Chinese

Arc UI Skills

Arc UI 设计规范

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

为AI Agent构建Arc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 Arc-inspired design systems
Implementing UIs with Inter font and 4px grid

参考以下指南的场景：

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

Colors

色彩

SHOULD use light backgrounds for primary surfaces
MUST use
```
#E4E4E4
```
as page background (
```
surface-base
```
)
MUST use
```
#6FADE2
```
for primary actions and focus states (
```
accent
```
)
SHOULD reduce color palette (currently 26 colors detected)
MUST maintain text contrast ratio of at least 4.5:1 for accessibility

主界面应使用浅色背景
页面背景必须使用
```
#E4E4E4
```
（
```
surface-base
```
）
主要操作和焦点状态必须使用
```
#6FADE2
```
（
```
accent
```
）
应精简调色板（当前检测到26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

语义化变量

Token	HEX	RGB	Usage
`surface-base`	#E4E4E4	rgb(228,228,228)	Page background
`surface-raised`	#1B00B5	rgb(27,0,181)	Cards, modals, raised surfaces
`surface-overlay`	#FEFEFD	rgb(254,254,253)	Overlays, tooltips, dropdowns
`text-primary`	#BFAFEA	rgb(191,175,234)	Headings, body text
`text-secondary`	#513EA3	rgb(81,62,163)	Secondary, muted text
`text-tertiary`	#E0DCEA	rgb(224,220,234)	Additional text
`border-default`	#1902BE	rgb(25,2,190)	Subtle borders, dividers
`accent`	#6FADE2	rgb(111,173,226)	Primary actions, links, focus
`warning`	#FEFEFD	rgb(254,254,253)	Warning states, cautions

变量名	十六进制值	RGB值	用途
`surface-base`	#E4E4E4	rgb(228,228,228)	页面背景
`surface-raised`	#1B00B5	rgb(27,0,181)	卡片、模态框、悬浮层
`surface-overlay`	#FEFEFD	rgb(254,254,253)	覆盖层、提示框、下拉菜单
`text-primary`	#BFAFEA	rgb(191,175,234)	标题、正文文本
`text-secondary`	#513EA3	rgb(81,62,163)	次要、弱化文本
`text-tertiary`	#E0DCEA	rgb(224,220,234)	辅助文本
`border-default`	#1902BE	rgb(25,2,190)	细微边框、分隔线
`accent`	#6FADE2	rgb(111,173,226)	主要操作、链接、焦点状态
`warning`	#FEFEFD	rgb(254,254,253)	警告状态、提示信息

Typography

排版

MUST use
```
Inter
```
as primary font family
SHOULD use single font family for consistency
MUST use
```
53px
```
/
```
700
```
for primary headings
MUST use
```
22px
```
/
```
500
```
for body text
SHOULD reduce font weights (currently 5 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

必须将
```
Inter
```
作为主要字体族
为保证一致性，应使用单一字体族
主标题必须使用
```
53px
```
/
```
700
```
字号/字重
正文文本必须使用
```
22px
```
/
```
500
```
字号/字重
应精简字重（当前检测到5种）
标题必须使用
```
text-balance
```
，正文必须使用
```
text-pretty
```
数字数据应使用
```
tabular-nums
```
除非明确要求，否则绝不要修改字间距

Text Styles

文本样式

Style	Font	Size	Weight	Color	Count
`heading-1`	Inter	53px	700	#E4E3EF	1
`text-36px`	Inter	36px	700	#2D2C2B	1
`body`	Inter	22px	500	#C7C7C7	1
`text-19px`	Inter	19px	400	#666664	1
`text-14px`	Inter	14px	semi_bold	#E0DCEA	1
`text-13px`	Inter	13px	400	#37556A	1
`text-13px`	Inter	13px	300	#C0C2C2	1
`text-13px`	Inter	13px	400	#AEACF0	1
`text-12px`	Inter	12px	400	#BFAFEA	1
`text-12px`	Inter	12px	400	#513EA3	1

样式	字体	字号	字重	颜色	出现次数
`heading-1`	Inter	53px	700	#E4E3EF	1
`text-36px`	Inter	36px	700	#2D2C2B	1
`body`	Inter	22px	500	#C7C7C7	1
`text-19px`	Inter	19px	400	#666664	1
`text-14px`	Inter	14px	semi_bold	#E0DCEA	1
`text-13px`	Inter	13px	400	#37556A	1
`text-13px`	Inter	13px	300	#C0C2C2	1
`text-13px`	Inter	13px	400	#AEACF0	1
`text-12px`	Inter	12px	400	#BFAFEA	1
`text-12px`	Inter	12px	400	#513EA3	1

Typography Reference

排版参考

Font Families:

```
Inter
```
(used 28x)

Font Sizes: 5px, 6px, 8px, 9px, 10px, 11px, 12px, 13px, 14px, 19px, 22px, 36px, 53px

字体族：

```
Inter
```
（使用28次）

字号： 5px, 6px, 8px, 9px, 10px, 11px, 12px, 13px, 14px, 19px, 22px, 36px, 53px

Spacing

间距

MUST use 4px grid for spacing
SHOULD use spacing from scale: 1px, 2px, 3px, 4px, 5px, 6px, 7px, 10px
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
应使用以下间距刻度：1px, 2px, 3px, 4px, 5px, 6px, 7px, 10px
元素间默认间距应使用5px
绝不要使用任意间距值（请使用设计刻度）
容器内的内边距应保持一致

Borders

边框

MUST use border-radius from scale: 2px, 3px, 4px, 5px, 6px, 7px, 8px, 9px, 21px, 22px
SHOULD use 21px+ radius for pill-shaped elements
SHOULD limit border widths to: 1px, 2px
SHOULD use 7px 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：2px, 3px, 4px, 5px, 6px, 7px, 8px, 9px, 21px, 22px
胶囊形元素应使用21px及以上的圆角
边框宽度应限制为：1px, 2px
默认圆角应使用7px
绝不要使用任意圆角值（请使用设计刻度）
元素分隔应使用细微边框（1px）

Border Radius Reference

圆角参考

Scale: 2px, 3px, 4px, 5px, 6px, 7px, 8px, 9px, 21px, 22px

刻度： 2px, 3px, 4px, 5px, 6px, 7px, 8px, 9px, 21px, 22px

Layout

布局

MUST design for 1920px base viewport width
SHOULD use consistent element widths: 69px, 11px, 10px, 70px, 15px
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为基础视口宽度进行设计
应使用统一的元素宽度：69px, 11px, 10px, 70px, 15px
绝不要使用
```
h-screen
```
，请使用
```
h-dvh
```
实现全屏高度
固定元素必须考虑
```
safe-area-inset
```
方形元素应使用
```
size-*
```
而非
```
w-*
```
+
```
h-*
```

Detected Layout Patterns

已检测到的布局模式

Main Content: width: 1920px, height: 602px
Main Content: width: 1920px, height: 613px
Header: height: 99px

主内容区: 宽度: 1920px, 高度: 602px
主内容区: 宽度: 1920px, 高度: 613px
头部导航: 高度: 99px

Components

组件

Buttons

按钮

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

变体	背景色	文本色	边框	高度	圆角
Ghost	transparent	#BFAFEA	none	-	-

Interactive States

交互状态

Focus

焦点状态

MUST use
```
2px
```
outline with accent color (
```
#6FADE2
```
)
MUST use
```
2px
```
outline-offset
NEVER remove focus indicators

必须使用2px宽的
```
accent
```
色（
```
#6FADE2
```
）外轮廓
必须设置2px的外轮廓偏移量
绝不要移除焦点指示器

Hover

悬停状态

Buttons (primary): lighten background by 10%
Buttons (secondary): use
```
#1B00B5
```
background
List items: use
```
#1B00B5
```
background

主按钮：背景色提亮10%
次要按钮：使用
```
#1B00B5
```
作为背景色
列表项：使用
```
#1B00B5
```
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

交互逻辑

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
```
加载状态应使用结构化骨架屏
错误提示必须显示在操作发生位置附近
绝不要阻止
```
input
```
或
```
textarea
```
元素的粘贴功能
纯图标按钮必须添加
```
aria-label
```

Animation

动画

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，否则绝不要添加动画
仅能对合成器属性（
```
transform
```
、
```
opacity
```
）执行动画
绝不要对布局属性（
```
width
```
、
```
height
```
、
```
top
```
、
```
left
```
、
```
margin
```
、
```
padding
```
）执行动画
入场动画应使用
```
ease-out
```
缓动函数
交互反馈动画时长绝不要超过200ms
应遵循
```
prefers-reduced-motion
```
设置

Performance

性能优化

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

绝不要对大面积
```
blur()
```
或
```
backdrop-filter
```
区域执行动画
仅在动画活跃期间使用
```
will-change
```
任何可通过渲染逻辑实现的功能，绝不要使用
```
useEffect
```