body {
    font-family: 'Sarabun', sans-serif;
    background-color: #f4f4f9;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
}

.container {
    background-color: #ffffff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    width: 100%;
    max-width: 800px;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    color: #b8860b;
    margin-bottom: 10px;
}

.last-update {
    font-size: 1rem;
    color: #777;
    margin-bottom: 30px;
}

.price-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.price-card {
    background-color: #fafafa;
    padding: 25px;
    border-radius: 10px;
    border: 1px solid #eee;
}

.price-card h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #333;
    border-bottom: 2px solid #b8860b;
    padding-bottom: 10px;
}

.price-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    font-size: 1.2rem;
    border-bottom: 1px solid #e0e0e0;
}

.price-item:last-child {
    border-bottom: none;
}

.label {
    font-weight: bold;
    color: #555;
}

.price {
    font-size: 1.8rem;
    font-weight: bold;
    color: #b8860b;
}

.unit {
    color: #777;
}

footer {
    font-size: 0.9rem;
    color: #888;
}

footer a {
    color: #b8860b;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}