Patch applied

User input: 请在 testDemo 目录下把 hello.html 改造成一个简洁的个人简介页，分三步进行：
Patch:
text
*** Begin Patch
*** Add File: testDemo/hello.html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Personal Profile</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
            padding: 20px;
        }
        
        .container {
            max-width: 800px;
            margin: 0 auto;
            background: white;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            overflow: hidden;
        }
        
        header {
            background: linear-gradient(135deg, #4f6df5 0%, #3a56d5 100%);
            color: white;
            padding: 40px 30px;
            text-align: center;
        }
        
        h1 {
            font-size: 2.5rem;
            margin-bottom: 8px;
            font-weight: 700;
        }
        
        .tagline {
            font-size: 1.2rem;
            opacity: 0.9;
            margin-bottom: 20px;
        }
        
        .avatar {
            width: 120px;
            height: 120px;
            border-radius: 50%;
            border: 4px solid white;
            margin: 0 auto 20px;
            background: #e9ecef;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.5rem;
            color: #4f6df5;
        }
        
        section {
            padding: 30px;
            border-bottom: 1px solid #e9ecef;
        }
        
        section:last-child {
            border-bottom: none;
        }
        
        h2 {
            color: #4f6df5;
            margin-bottom: 15px;
            font-size: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        h2::before {
            content: '';
            display: inline-block;
            width: 6px;
            height: 24px;
            background: #4f6df5;
            border-radius: 3px;
        }
        
        p {
            margin-bottom: 15px;
            color: #555;
        }
        
        .skills {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 15px;
        }
        
        .skill {
            background: #eef2ff;
            color: #4f6df5;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
        }
        
        .contact-list {
            list-style: none;
            margin-top: 15px;
        }
        
        .contact-list li {
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        
        .contact-icon {
            width: 36px;
            height: 36px;
            background: #eef2ff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #4f6df5;
            font-weight: bold;
        }
        
        footer {
            text-align: center;
            padding: 20px;
            color: #6c757d;
            font-size: 0.9rem;
            border-top: 1px solid #e9ecef;
        }
        
        @media (max-width: 600px) {
            body {
                padding: 10px;
            }
            
            h1 {
                font-size: 2rem;
            }
            
            section {
                padding: 20px;
            }
        }
    </style>
</head>
<body>
    <div class="container">
        <header>
            <div class="avatar">👤</div>
            <h1>Alex Chen</h1>
            <p class="tagline">Full Stack Developer & UI/UX Enthusiast</p>
        </header>
        
        <section id="about">
            <h2>About Me</h2>
            <p>Hello! I'm a passionate developer with 5+ years of experience building web applications. I enjoy creating clean, efficient, and user-friendly solutions that solve real-world problems.</p>
            <p>My approach combines technical expertise with design thinking, ensuring that every project is both functional and delightful to use.</p>
        </section>
        
        <section id="skills">
            <h2>Skills</h2>
            <div class="skills">
                <span class="skill">JavaScript</span>
                <span class="skill">React</span>
                <span class="skill">TypeScript</span>
                <span class="skill">Node.js</span>
                <span class="skill">Python</span>
                <span class="skill">Django</span>
                <span class="skill">PostgreSQL</span>
                <span class="skill">Docker</span>
                <span class="skill">AWS</span>
                <span class="skill">Figma</span>
            </div>
        </section>
        
        <section id="contact">
            <h2>Contact</h2>
            <ul class="contact-list">
                <li>
                    <div class="contact-icon">📧</div>
                    <div>
                        <strong>Email</strong>

                        [email protected]
                    </div>
                </li>
                <li>
                    <div class="contact-icon">💼</div>
                    <div>
                        <strong>LinkedIn</strong>

                        linkedin.com/in/alexchen
                    </div>
                </li>
                <li>
                    <div class="contact-icon">🐙</div>
                    <div>
                        <strong>GitHub</strong>

                        github.com/alexchen
                    </div>
                </li>
                <li>
                    <div class="contact-icon">🌐</div>
                    <div>
                        <strong>Portfolio</strong>

                        alexchen.dev
                    </div>
                </li>
            </ul>
        </section>
        
        <footer>
            <p>© 2023 Alex Chen. All rights reserved.</p>
            <p>Last updated: December 2023</p>
        </footer>
    </div>
</body>
</html>
*** End Patch
Files:
testDemo/hello.html