/* 全局样式 */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

/* 网页容器样式 */
.web {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

/* 导航栏样式 */
#nav {
    background-color: #333;
}

#nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
}

#nav li {
    margin: 0 10px;
}

#nav a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    transition: background-color 0.3s;
}

#nav a:hover {
    background-color: #555;
}

#nav a.active {
    background-color: #007BFF;
}

/* 主体内容样式 */
.main {
    padding: 20px;
}

.title {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 20px;
}

.ibox1 ul {
    list-style-type: none;
    padding: 0;
}

.ibox1 p {
    margin: 10px 0;
}

.ibox1 a {
    color: #007BFF;
    text-decoration: none;
}

.ibox1 a:hover {
    text-decoration: underline;
}

/* 图片占位符样式 */
.ibox1 img {
    width: 300px;
    height: 200px;
    background-color: #eee;
    border: 1px solid #ccc;
    margin: 10px 0;
}

/* 页脚样式 */
.foot {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px;
}