/* 全局样式 */
body {
    font-family: 'Noto Sans SC', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
    color: #333;
    line-height: 1.6;
}

/* 网页容器样式 */
.web {
    width: 90%;
    max-width: 1000px;
    margin: 30px auto;
    background-color: #fff;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    overflow: hidden;
}

/* 导航栏样式 */
#nav {
    background-color: #2c3e50;
}

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

#nav li {
    margin: 0;
}

#nav a {
    display: block;
    color: white;
    text-align: center;
    padding: 16px 20px;
    text-decoration: none;
    transition: background-color 0.3s;
}

#nav a:hover {
    background-color: #34495e;
}

#nav a.active {
    background-color: #1abc9c;
}

/* 主体内容样式 */
.main {
    padding: 40px;
}

.title {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 30px;
    text-align: center;
    color: #2c3e50;
}

.ibox1 {
    width: 100%;
    margin: 0 auto;
}

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

.ibox1 h3 {
    font-size: 22px;
    color: #1abc9c;
    margin-bottom: 15px;
}

.ibox1 p {
    margin: 15px 0;
    text-align: justify;
}

.ibox1 a {
    color: #1abc9c;
    text-decoration: none;
    transition: color 0.3s;
}

.ibox1 a:hover {
    color: #16a085;
    text-decoration: underline;
}

/* 图片占位符样式 */
.ibox1 img {
    width: 100%;
    max-width: 700px;
    height: auto;
    background-color: #eee;
    border: 1px solid #ccc;
    margin: 20px 0;
    border-radius: 4px;
}

/* 页脚样式 */
.foot {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 15px;
}