* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', 'Microsoft YaHei', sans-serif;
}

body {
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

nav {
    background-color: #2c3e50;
    padding: 1rem;
    margin-bottom: 2rem;
    border-radius: 4px;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

nav a {
    color: white;
    text-decoration: none;
    font-size: 1.1rem;
    padding: 0.5rem 1rem;
    transition: background-color 0.3s;
}

nav a:hover {
    background-color: #34495e;
    border-radius: 4px;
}

.content {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

h1, h2 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
}

h1 {
    font-size: 2.5rem;
    border-bottom: 2px solid #3498db;
    padding-bottom: 0.5rem;
}

h2 {
    font-size: 1.8rem;
    margin-top: 2rem;
}

p {
    margin-bottom: 1rem;
    text-align: justify;
}

ul {
    padding-left: 2rem;
    margin-bottom: 1.5rem;
}

li {
    margin-bottom: 0.5rem;
}

.publication-category {
    margin-top: 2rem;
    padding: 1.5rem;
    background-color: #f5f6fa;
    border-radius: 6px;
}

.member-category {
    margin-top: 2rem;
}

.member-card {
    padding: 1.5rem;
    background-color: #fff;
    border: 1px solid #eee;
    border-radius: 6px;
    margin-bottom: 1.5rem;
}

.contact-info {
    padding: 2rem;
    background-color: #f5f6fa;
    border-radius: 6px;
    margin-top: 2rem;
}