html, body {
    height: 100%;
    margin: 0;
    display: flex;
    overflow: hidden;
    align-items: center;
    justify-content: center;
    background-color: #eadbbf;
}

.container {
    text-align: center;
}

h1 {
    font-size: 50px;
}

/* For PC */

#age {
    font-size: 1200%;
}

#day {
    font-size: 300%;
}

/* 按钮样式 */
.toggle-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 10px 20px;
    font-size: 16px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.toggle-btn:hover {
    background-color: #45a049;
}

/* For Phone */
@media (max-width: 900px) {
    #age {
        font-size: 400%;
    }
    
    #day {
        font-size: 200%;
    }
}