/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f0f2f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 20px;
}

/* 个人资料 */
.profile {
    text-align: center;
    margin-bottom: 2rem;
}

.avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid white;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.profile h1 {
    margin: 0.5rem 0;
    color: #2c3e50;
}

.bio {
    color: #666;
    font-size: 1.1rem;
}

/* 导航 */
.nav {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    padding: 1rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.nav a {
    text-decoration: none;
    color: #3498db;
    font-weight: 500;
    transition: color 0.3s;
}

.nav a:hover {
    color: #2980b9;
}

/* 内容区块 */
.section {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    margin-bottom: 2rem;
}

.section h2 {
    color: #2c3e50;
    margin-bottom: 1rem;
    border-bottom: 2px solid #f0f2f5;
    padding-bottom: 0.5rem;
}

/* 技能网格 */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
}

.skill {
    background: #f8f9fa;
    padding: 0.8rem 1rem;
    border-radius: 5px;
    text-align: center;
    font-weight: 500;
}

/* 页脚 */
.footer {
    text-align: center;
    padding: 2rem 0;
    color: #666;
    font-size: 0.9rem;
}