body {
    margin: 0;
    font-family: Arial;
    background-color: #FFF5E1;
}

header {
    background-color: #FFD1DC;
    padding: 15px;
    text-align: center;
}

nav {
    margin: 10px 0;
}

nav a {
    margin: 0 10px;
    text-decoration: none;
    color: #333;
}

.container {
    display: flex;
    flex-wrap: wrap;
    padding: 20px;
}

.card {
    width: 30%;
    margin: 1%;
    background: white;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
}

button {
    background: pink;
    border: none;
    padding: 10px;
    cursor: pointer;
}

/* 手機版 */
@media(max-width:768px){
    .card {
        width: 100%;
    }
}