body {
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f2f2f2;
    color: #333;
}

.container {
    max-width: 500px;
    margin: auto;
    padding: 2em;
    text-align: center;
    background-color: white;
    box-shadow: 0 0 12px rgba(0, 0, 0, 0.1);
    border-radius: 12px;
    margin-top: 2em;
}

h1 {
    font-size: 1.8em;
    color: #d43f3a;
    margin-bottom: 1em;
}

.lotto-block {
    margin: 1em 0;
}

.numbers {
    font-size: 1.5em;
    letter-spacing: 0.2em;
    color: #2c3e50;
    font-weight: bold;
}

.refresh {
    font-size: 0.9em;
    color: #777;
    margin-top: 2em;
}

/* 手機版適應 */
@media (max-width: 600px) {
    .container {
        padding: 1em;
        margin-top: 1em;
    }

    h1 {
        font-size: 1.4em;
    }

    .numbers {
        font-size: 1.2em;
    }
}

.refresh-button {
    margin-top: 1.5em;
    padding: 0.6em 1.2em;
    font-size: 1em;
    background-color: #d43f3a;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

.refresh-button:hover {
    background-color: #a52a2a;
}