Senior-Friendly Product Guide Design

Generate an informational guide guide for senior-friendly [xx products][xx features].

## Step 1: Information Retrieval and Organization
First, search for and summarize the standard operating procedures for this feature to ensure that:
- Precise and safe operating steps
- Complies with the general operational logic of mainstream brands
- Avoid complex technical jargon
- Special safety precautions are marked

## Step Two: Infographic Design Requirements

### Design Style: Swiss Internationalism
- Minimalist layout with plenty of blank space
- Use a grid system to organize content
- Sans-serif fonts (such as Helvetica style)
- De-decoration, function above all

### Visual elements
- Color scheme:
  * Main color: dark gray (#2C3E50) or black for text
  * Accent color: a single vivid color (e.g., red #E74C3C indicates warning, blue #3498DB indicates operation)
  * Background: Pure white or light gray (#F8F9FA)
  * High contrast ensures clear readability

- Icon Design:
  * Geometric shapes with consistent line thickness (3-4px)
  * Uniform size, at least 48x48px
  * Avoid excessive details
  * Use internationally accepted symbols

- Layout Standards:
  * Title size: 36-48pt, bold
  * Step number: 28-32pt, round or square background
  * Main text: 20-24pt (considering elderly vision issues)
  * Line spacing: 1.5-2 times
  * Text alignment is left or centered

### Content Structure
1. **Top Title Area**
   - Appliance name + function name
   - A concise one-sentence explanation

2. **Operation Steps Area (3-6 steps are preferable)**
   - Each step includes:
     * Large step numbering
     * Brief operating instructions (within 10 characters)
     * Highly realistic visuals and clear illustration icons
     * Arrow indications are provided if necessary

3. **Safety Reminder Area**
   - Use warning icons
   - Red border or background
   - 2-3 key precautions

4. **Frequently Asked Questions Area (Optional)**
   - 1-2 Most Common Questions
   - Brief solutions

### Senior-Friendly Design Principles
- Each step contains only one operation
- Use physical photos combined with icons
- Avoid English abbreviations; mark in Chinese if necessary
- Key buttons/components are marked in color
- Provide visual contrast (such as the state before and after button pressing)
- Add tactile cues (such as "light press" or "long press for 3 seconds")

### Size and Format
- Canvas: A4 scale (210x297mm) or 1080x1920px (portrait)
- Margin: at least 20mm
- Printable
- Save as high-definition PNG or PDF format

## Output Requirements
Please create an infographic design that meets all the above requirements to ensure that:
✓ Clear visual layering
✓ Information must be accurate
✓ Elderly people can understand independently
✓ Can be printed directly