* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Noto Sans JP', sans-serif;
    background-color: white;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: white;
    min-height: 100vh;
}

.product-container {
    display: flex;
    gap: 40px;
    padding: 40px;
    align-items: flex-start;
}

.product-image {
    flex: 1;
    text-align: center;
    padding: 20px;
    /* background-color: #f5f5f5; */
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

.product-image img {
    max-width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: contain;
}

.product-info {
    flex: 1;
    padding: 20px;
}

.product-title {
    font-size: 18px;
    font-weight: normal;
    margin-bottom: 15px;
    color: #333;
}

.product-price {
    font-size: 20px;
    font-weight: bold;
    color: #333;
    margin-bottom: 20px;
}

.quantity-section {
    margin-bottom: 20px;
}

.quantity-label {
    font-size: 14px;
    color: #666;
    margin-bottom: 8px;
}

.quantity-select {
    width: 100px;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    background-color: white;
}

.add-to-cart-btn {
    width: 100%;
    padding: 15px;
    background-color: white;
    border: 2px solid #333;
    color: #333;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.add-to-cart-btn:hover {
    background-color: #333;
    color: white;
}

.product-description {
    border-top: 1px solid #eee;
    padding-top: 20px;
    margin-bottom: 20px;
}

.description-title {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 10px;
    color: #333;
}

.description-content {
    font-size: 14px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 15px;
}

.ingredients {
    font-size: 14px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 15px;
}

.series-info {
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
}

.detailed-description {
    font-size: 14px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 15px;
}

.notes {
    font-size: 12px;
    color: #666;
    padding: 15px 20px;
    background-color: white;
}

.notes p {
    margin-bottom: 5px;
}

@media (max-width: 768px) {
    .product-container {
        flex-direction: column;
        gap: 0;
        padding: 0;
    }
    
    .container {
        max-width: 100%;
    }
    
    .product-info {
        padding: 15px;
    }
    
    .product-image {
        padding: 15px;
    }
}