pixel-perfect-ui（像素完美的用户界面）

Pixel-Perfect UI Implementation

Autonomous workflow for converting Figma designs to production-ready, pixel-perfect React/Next.js implementations with visual validation.

🚀 AUTO-TRIGGER CONDITIONS

This skill MUST be invoked automatically when the user requests ANY of:

• "implement this Figma design"
• "build this page/component from Figma"
• "create from Figma"
• "implement the design"
• "build this block/section"
• "create component matching design"
• Any request involving Figma URL or node ID
• Any request to implement a page, block, or component from a design

Prerequisites

• Figma MCP server connected (for design extraction)
• Playwright MCP server connected (for visual validation)
• Next.js or React project initialized

📋 PHASE 0: MANDATORY CHECKLIST CREATION (ALWAYS FIRST)

CRITICAL: Before ANY implementation, you MUST:

Step 0.1: Analyze Design & Identify Sections

First, get the full page/component from Figma and identify ALL sections:

mcp0_get_design_context --nodeId <page-node-id>
mcp0_get_metadata --nodeId <page-node-id>

List all sections/blocks in the design (e.g., Header, Hero, Features, CTA, Footer).

Step 0.2: Create Implementation Checklist File

Create a markdown checklist file at .windsurf/implementation-checklist.md:

# Implementation Checklist: [Component/Page Name]

**Created**: [Date]
**Figma Source**: [URL or Node ID]
**Target Path**: [e.g., src/app/page.tsx or src/components/MyComponent.tsx]
**Status**: 🟡 Pending Approval

---

## 📋 Sections to Implement

[List each section identified from Figma]

1. **Section Name 1** (node-id: xxx)
2. **Section Name 2** (node-id: xxx)
3. **Section Name 3** (node-id: xxx)
...

---

## 🔄 SECTION-BY-SECTION IMPLEMENTATION

> ⚠️ **CRITICAL RULE**: For EACH section below:
> 1. First EXTRACT fresh Figma data for that specific section
> 2. Then IMPLEMENT based on that fresh extraction
> 3. Mark section complete
> 4. Move to next section
>
> **NEVER rely on old/cached Figma data. Always re-extract before implementing!**

---

### Section 1: [Section Name]
**Node ID**: [figma-node-id]
**Status**: ⬜ Not Started

#### 1.1 Extract from Figma
- [ ] mcp0_get_design_context for this section
- [ ] mcp0_get_screenshot for visual reference
- [ ] Export any images/assets needed
- [ ] Note typography, colors, spacing

#### 1.2 Implement
- [ ] Create/update component structure
- [ ] Implement desktop layout (1440px)
- [ ] Implement tablet layout (768px)
- [ ] Implement mobile layout (375px)
- [ ] Add images with Next.js Image
- [ ] Apply styles (typography, colors, spacing)

#### 1.3 Validate
- [ ] Visual check matches Figma
- [ ] Responsive on all viewports
- [ ] No horizontal scroll

✅ **Section 1 Complete**: [ ]

---

### Section 2: [Section Name]
**Node ID**: [figma-node-id]
**Status**: ⬜ Not Started

#### 2.1 Extract from Figma
- [ ] mcp0_get_design_context for this section
- [ ] mcp0_get_screenshot for visual reference
- [ ] Export any images/assets needed
- [ ] Note typography, colors, spacing

#### 2.2 Implement
- [ ] Create/update component structure
- [ ] Implement desktop layout (1440px)
- [ ] Implement tablet layout (768px)
- [ ] Implement mobile layout (375px)
- [ ] Add images with Next.js Image
- [ ] Apply styles (typography, colors, spacing)

#### 2.3 Validate
- [ ] Visual check matches Figma
- [ ] Responsive on all viewports
- [ ] No horizontal scroll

✅ **Section 2 Complete**: [ ]

---

[Repeat for each section...]

---

## 🏁 Final Validation

- [ ] All sections implemented
- [ ] Full page visual comparison
- [ ] Resource validation passed (no broken links/images)
- [ ] Production checklist complete

---

## 📝 Notes

[Add any specific notes here]

---

## ✅ Completion Summary

**Completed**: [Date when finished]
**Final Status**: [Pending/Complete]

Step 0.3: Present Plan to User

After creating the checklist, ALWAYS:

1. Display the plan to the user in chat (show all identified sections)
2. Ask for confirmation: "I've created the implementation checklist at .windsurf/implementation-checklist.md with X sections. Should I proceed?"
3. WAIT for user approval before proceeding

Step 0.4: Execute Section-by-Section

FOR EACH SECTION (in order):

┌─────────────────────────────────────────────────────┐
│  SECTION WORKFLOW (repeat for each section)         │
├─────────────────────────────────────────────────────┤
│  1. 📥 EXTRACT: Get fresh Figma data for section    │
│     - mcp0_get_design_context --nodeId <section-id> │
│     - mcp0_get_screenshot --nodeId <section-id>     │
│     - Export images if needed                       │
│                                                     │
│  2. 🔨 IMPLEMENT: Build based on fresh extraction   │
│     - Use the data you JUST extracted               │
│     - Do NOT use old/cached data                    │
│     - Implement responsive (desktop→tablet→mobile)  │
│                                                     │
│  3. ✅ VALIDATE: Check section matches Figma        │
│                                                     │
│  4. 📝 UPDATE CHECKLIST: Mark items [x] complete    │
│                                                     │
│  5. ➡️ MOVE TO NEXT SECTION                         │
└─────────────────────────────────────────────────────┘

CRITICAL:

• Do NOT batch extract all sections at once
• Do NOT implement from memory or old data
• ALWAYS re-extract Figma data immediately before implementing each section
• Update checklist after completing each section

Step 0.5: Track Progress

As you complete each section:

1. Update the checklist file - Change - [] to - [x] for completed items
2. Update section status: ⬜ Not Started → 🔵 In Progress → ✅ Complete
3. Update overall Status field:

- 🟡 Pending Approval - 🔵 In Progress - Section X of Y - 🟢 Complete - 🔴 Blocked (with reason)

🚨 CRITICAL PRODUCTION RULES

Mobile-First Responsive Design (MANDATORY)

• NEVER use hardcoded pixel widths (e.g., w-[1728px], width: 1728px)
• ALWAYS use responsive units: max-w-7xl, percentages, or viewport units
• ALWAYS test on mobile viewports (375px, 768px, 1024px, 1440px)
• NO horizontal scroll - Use overflow-x-hidden on body if needed
• Container pattern: Use max-w-[size] mx-auto px-4 sm:px-6 lg:px-8

Image Requirements (MANDATORY)

• EXPORT all images from Figma - Never use placeholder paths
• CHECK image existence before referencing
• USE Next.js Image component with proper dimensions
• PROVIDE fallbacks for missing images
• OPTIMIZE images - WebP format preferred

Production Checklist (MUST COMPLETE)

• All viewports tested (mobile, tablet, desktop)
• No horizontal scroll on any device
• All images exported and accessible
• Touch targets minimum 44x44px on mobile
• Text readable without zooming
• Interactive elements have hover/focus states
• Loading states implemented
• Error boundaries added
• Resource validation passed (no broken links/images)

Core Workflow

⚠️ REMINDER: Always complete Phase 0 (Checklist Creation) before starting these steps!

1. Design Extraction

Extract comprehensive design data from Figma:

# Get design context and code
mcp0_get_design_context --nodeId <node-id>
mcp0_get_variable_defs --nodeId <node-id>
mcp0_get_screenshot --nodeId <node-id>

Parse extracted data for:

• Typography (font-family, size, weight, line-height, letter-spacing)
• Colors (hex values, opacity)
• Spacing (padding, margin, gap)
• Layout (flexbox/grid properties, alignment)
• Borders, shadows, radius values
• Asset URLs and SVG exports

2. Project Analysis

Detect project configuration:

• Framework: Next.js App Router vs Pages Router
• Styling: Tailwind, CSS Modules, styled-components
• Component library: shadcn/ui, MUI, Radix
• Design tokens location: tailwind.config, theme.ts

Map Figma tokens to existing project tokens.

3. Implementation

Generate component with extracted values:

// For complex layouts, use references/layout-patterns.md
// For component patterns, use references/component-patterns.md
// For responsive patterns, use references/responsive-patterns.md

STRICT Implementation Rules:

• ❌ FORBIDDEN: Hardcoded widths like w-[1728px], width: 1728px
• ✅ REQUIRED: Responsive containers max-w-7xl mx-auto px-4
• ✅ REQUIRED: Mobile-first breakpoints sm:, md:, lg:, xl:
• ✅ REQUIRED: Export and validate all images from Figma
• ✅ REQUIRED: Flexible layouts using Flexbox/Grid
• ✅ REQUIRED: Test on 375px, 768px, 1024px, 1440px viewports

Image Handling:

// 1. Export from Figma
mcp0_get_screenshot --nodeId <id> --filename "hero-image.png"

// 2. Save to public/assets/
// 3. Use with Next Image
<Image src="/assets/hero-image.png" alt="..." width={...} height={...} />

4. Multi-Device Validation Loop

Mandatory: Run validation on ALL viewports:

# Desktop validation
python scripts/visual-compare.py --viewport 1440x900

# Tablet validation
python scripts/visual-compare.py --viewport 768x1024

# Mobile validation (CRITICAL)
python scripts/visual-compare.py --viewport 375x667

# Responsive issues check
python scripts/responsive-validation.py --url <url>

# Resource validation (CRITICAL - Run before deployment)
python scripts/resource-validator.py --directory src/app --strict

Validation Requirements:

• ✅ No horizontal scroll on any viewport
• ✅ All images loading correctly (verified by resource-validator.py)
• ✅ No broken links or missing resources
• ✅ No placeholder content (lorem ipsum, temp images)
• ✅ Touch targets ≥ 44x44px on mobile
• ✅ Text legible without zooming
• ✅ Proper stacking on mobile (no overlaps)
• ✅ Interactive elements accessible

Common Failures to Fix:

• ❌ Hardcoded widths causing overflow
• ❌ Missing or broken images (detected by resource-validator.py)
• ❌ Broken internal/external links
• ❌ Placeholder content (lorem ipsum, temp images)
• ❌ External dependencies not cached locally
• ❌ Text too small on mobile (<14px)
• ❌ Elements overlapping on small screens
• ❌ Fixed positioning breaking on mobile

5. Responsive Implementation

Extract breakpoint variations from Figma:

• Desktop (1440px)
• Tablet (768px)
• Mobile (375px)

Apply responsive rules using project's breakpoint system.

Quick Commands

Full page implementation:

python scripts/extract-and-implement.py --figma-url <url> --output-path <path>

Component extraction:

python scripts/extract-component.py --node-id <id> --component-name <name>

Visual validation:

python scripts/visual-compare.py --implementation-url <url> --figma-node <id>

Resource validation (broken links, missing images):

# Validate single file
python scripts/resource-validator.py --file src/app/page.tsx

# Validate entire app (REQUIRED before production)
python scripts/resource-validator.py --directory src/app --strict --report validation-report.txt

File Organization

• Pages: Follow project routing convention

- App Router: app/[route]/page.tsx - Pages Router: pages/[route].tsx

• Components: components/ui/[component].tsx
• Assets: public/assets/ or src/assets/
• Styles: Co-located or in styles/

Token Mapping

See references/token-mapping.md for:

• Figma → Tailwind mapping
• Figma → CSS variables mapping
• Shadow and gradient conversion
• Typography scale mapping

Component Patterns

See references/component-patterns.md for:

• Card layouts
• Navigation patterns
• Form components
• Modal implementations
• Grid systems

Validation Thresholds

Acceptable differences:

• Font kerning: ±2px
• Line height: ±1px
• Anti-aliasing variations

Must match exactly:

• Colors (hex values)
• Border radius
• Spacing values
• Component dimensions
• Shadow properties