/* 基础样式 */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #F5F5DC;
    color: #333;
}

/* 布局 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 头部 */
header {
    background-color: #2E8B57;
    color: white;
    padding: 20px 0;
    text-align: center;
}

header h1 {
    margin: 0;
    font-size: 2.5rem;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 20px 0 0;
}

nav ul li {
    display: inline-block;
    margin: 0 15px;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

/* 主要内容 */
main {
    padding: 40px 20px;
}

section {
    margin-bottom: 40px;
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

h2 {
    color: #8B4513;
    border-bottom: 2px solid #2E8B57;
    padding-bottom: 10px;
    margin-bottom: 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    nav ul li {
        display: block;
        margin: 10px 0;
    }
}

/* 页脚 */
footer {
    text-align: center;
    padding: 20px;
    background-color: #2E8B57;
    color: white;
    margin-top: 40px;
}