body {
    margin: 0;
    background-color: #8ddaef;
    font-family: Arial, sans-serif;
    color: #000000;
}

.layout {
    display: flex;
    height: 100vh;
}

/* 左侧侧边栏 */
.sidebar {
    width: 220px;
    background: #a94def;
    padding: 20px;
    box-sizing: border-box;
}

.sidebar .logo {
    margin-bottom: 30px;
}

.sidebar nav a {
    display: block;
    color: #ccc;
    text-decoration: none;
    padding: 10px 12px;
    margin-bottom: 8px;
    border-radius: 6px;
}

.sidebar nav a.active,
.sidebar nav a:hover {
    background: #445d8d;
    color: #fff;
}

.content {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
}

.container {
    max-width: 900px;
    background: rgb(71, 141, 228);
    padding: 20px;
    border-radius: 8px;
    box-sizing: border-box;
}

input {
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
    box-sizing: border-box;
}

button {
    padding: 8px 16px;
}