/* 基础样式 */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    line-height: 1.6;
}

/* 标签页容器 */
.tab-container {
    margin-bottom: 20px;
}

/* 标签导航样式 */
.tab-nav {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: flex;
    border-bottom: 2px solid #ddd;
}

.tab-item {
    margin-right: 5px;
}

.tab-link {
    display: block;
    padding: 12px 24px;
    text-decoration: none;
    color: #333;
    background-color: #f1f1f1;
    border: 1px solid #ddd;
    border-bottom: none;
    border-radius: 5px 5px 0 0;
    transition: background-color 0.3s;
}

.tab-link:hover {
    background-color: #e9e9e9;
}

.tab-link.active {
    background-color: #fff;
    color: #007bff;
    font-weight: bold;
    border-bottom: 2px solid #fff;
    margin-bottom: -2px;
}

/* 内容区域 */
#content-frame {
    width: 100%;
    height: 600px;
    border: 1px solid #ddd;
    border-top: none;
}

/* 页脚样式 */
footer {
    margin-top: 20px;
    text-align: center;
    color: #666;
    font-size: 0.9rem;
}