I. Function Introduction

The corporate logo is the core identifier of brand image. After setting, it will be displayed in the following scenarios:

• System Login Page: Top-left corner of login interface
• Management Backend: Left side of top navigation bar
• Mobile APP: Splash screen and workspace
• Exported Files: Header of PDF/Excel files
• Printed Documents: Header of various documents

II. Operation Guide

1. Access Configuration Interface

1. Administrator logs in to Management Backend
2. Navigation menu select: 【System Settings】→【Configuration】

2. Upload Logo

1. Locate Logo setting in "Corporate Information" section
2. Click current Logo icon
3. Select new Logo file:
   • Supported formats: PNG/JPG/SVG
   • Recommended size: 144×144 pixels
   • File size: ≤500KB

3. Adjust Display Effect

1. Preview effect in preview area
2. Adjustable options:
   • Display Size: Small/Medium/Large
   • Background Adaptation: Transparent/White background
   • Position Adjustment: Vertical/Horizontal offset
3. Real-time preview in various scenarios:
   • Login page
   • Management backend
   • Mobile app

4. Save Settings

1. Click "Save" button at bottom
2. System prompts "Saved successfully"
3. Refresh page to view effective results

III. Format Specifications

1. Design Specifications

• Aspect Ratio: Recommended 1:1 (width:height)
• Colors: Primary colors ≤3
• Resolution: ≥300dpi
• Whitespace: 10% margin around edges

2. File Requirements

Item	Requirement
Format	PNG (Recommended)/JPG/SVG
Dimensions	Min 72×72px, Max 512×512px
Size	≤500KB
Background	Transparent or solid color

3. Best Practices

1. Design Recommendations:
   • Use vector files (SVG) for clarity
   • Simplify design elements
   • Include full company name
2. Testing Verification:
   • Test display effect on different backgrounds
   • Check adaptation on mobile devices
   • Print test page to check output
3. Multi-scenario Adaptation:
   • Prepare dark/light mode versions
   • Create square version for mobile icons
   • Design simplified version for small sizes

IV. Precautions

1. Effective Time:
   • Web: Immediate effect (clear cache required)
   • Mobile: Takes effect in next app update
2. Permission Requirements:
   • Only system administrators can modify
   • Operation records are audited
3. Backup Recommendations:
   • Backup original logo before modification
   • Keep vector source files
4. Legal Compliance:
   • Ensure logo doesn't infringe third-party rights
   • Comply with trademark usage regulations