/* 简单的样式调整 */
body {
    font-family: 'Arial', sans-serif;
    background-color: #f7f7f7;
}

button {
    padding: 10px 20px;
    background-color: #1D4ED8; /* primary color */
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #2563EB;
}