body {
    margin: 0;
    padding: 0;
    font-family: "Microsoft YaHei", sans-serif;
    background-color: #f0f2f5;
}

.logo {
    font-size: 30px;
    font-weight: bold;
    color: #00a299;
    margin: 20px 0 20px 30px;
}

/* 侧边栏 */
.sidebar {
    width: 200px;
    background-color: #2a2a2a;
    color: #fff;
    position: fixed;
    height: calc(100vh - 0px);
    overflow-y: auto;
}

.sidebar ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar li {
    padding: 15px 20px;
    cursor: pointer;
    border-bottom: 1px solid #333;
}

.sidebar li.active {
    background-color: #00a299;
}

.sidebar li:hover {
    background-color: #333;
}

/* 内容区域 */
.content-container {
    margin-left: 200px;
    height: calc(100vh - 0px); /* 顶部栏高度60px */
}

.content-iframe {
    width: 100%;
    height: 99%;
    border: none;
}