.single_product {
    margin: 0 auto;
    padding: 40px 0px 0px 0px;
    max-width: 1300px;
    display: flex;
    align-items: flex-start;
    flex-direction: column;
}

.single_product nav {
    margin-bottom: 10px;
}

.single_product .breadcrumb {
    font-family: "Noto Serif TC", serif;
    font-size: 20px;
}

.single_product .breadcrumb .breadcrumb-item a {
    text-decoration: none;
    color: #6f6f6f;
    font-weight: 500;
}

.single_product .breadcrumb .breadcrumb-item a:hover,
.single_product .breadcrumb .breadcrumb-item.active {
    text-decoration: none;
    color: #2f2f2f;
    font-weight: 500;
}

.single_product .product-page {
    display: flex;
    flex-direction: row;
    margin-bottom: 40px;
}

.single_product .image-section {
    display: flex;
    flex-direction: column-reverse;
    gap: 10px;
}

.single_product .thumbnails {
    display: flex;
    flex-direction: row;
    gap: 10px;
}

.single_product .thumbnails img {
    width: 112px;
    height: 112px;
    cursor: pointer;
    transition: border 0.3s ease;
}

.single_product .main-image img {
    width: 600px;
    height: auto;
}

.single_product #currentImage {
    opacity: 1;
    transition: opacity 1s ease-in-out;
}

.single_product .product-info {
    padding-left: 70px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.single_product .product-info .title {
    font-family: "Noto Serif TC", serif;
    font-size: 28px;
    font-weight: 500;
    color: #2f2f2f;
    margin-bottom: 10px;
}

.single_product .product-info .description {
    font-family: "Noto Serif TC", serif;
    text-align: justify;
    font-size: 16px;
    font-weight: 500;
    color: #595959;
    margin-bottom: 20px;
    white-space: pre-wrap;
}

.single_product .product-info .description span{
    font-weight: 600;
    color: #333333;
}

.single_product .product-info .capacity {
    margin: 0px;
    padding-bottom: 10px;
    font-family: "Noto Serif TC", serif;
    font-size: 16px;
    color: #6f6f6f;
}

.single_product .product-info .capacity span{
    font-family: "Noto Serif TC", serif;
    font-size: 16px;
    color: #6f6f6f;
}

.single_product .product-info .capacity .category {
    font-family: "Noto Serif TC", serif;
    font-size: 16px;
    color: #6f6f6f;
}

.single_product .product-info .product-price {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.single_product .product-info .nomal-price {
    font-size: 20px;
    font-family: "Noto Serif TC", serif;
    font-weight: 500;
    color: #2f2f2f;
}

.single_product .product-info .discount {
    font-size: 20px;
    font-family: "Noto Serif TC", serif;
    font-weight: 500;
    color: #2f2f2f;
}

.single_product .product-info .price {
    font-family: "Noto Serif TC", serif;
    font-size: 16px;
    color: #4f4f4f;
    margin-left: 10px;
    text-decoration: line-through;
}

.single_product .product-info hr {
    color: #7A6152;
}

.single_product .button {
    margin-top: 15px;
}

.single_product .button form {
    display: flex;
    flex-direction: row;
}

.single_product .quantity-control {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.single_product .quantity-control button {
    height: 50px;
    width: 50px;
    background-color: #fff;
    border: 1px solid #ccc;
    padding: 5px 10px;
    cursor: pointer;
    font-size: 18px;
    color: #4f4f4f;
    transition: background-color 0.5s ease;
}

.single_product .quantity-control button:hover {
    background-color: #2f2f2f;
    border: 1px solid transparent;
    color: #fff;
}

.single_product .quantity-control input[type="text"] {
    font-family: "Noto Serif TC", serif;
    height: 50px;
    width: 60px;
    text-align: center;
    border-radius: 0;
    border: 1px solid #ccc;
    margin: 0 10px;
    font-size: 18px;
    color: #4f4f4f;
}

.single_product .add-to-cart {
    width: 100%;
    max-width: 100%;
    height: 50px;
    margin-left: 20px;
    padding: 10px 20px;
    background-color: #4f4f4f;
    color: #fff;
    font-family: "Noto Serif TC", serif;
    border: none;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.5s ease;
}

.single_product .add-to-cart:hover {
    background-color: #2f2f2f;
}

@media (max-width: 1200px) {
    .single_product {
        padding: 150px 20px 0px 20px;
    }
    
    .single_product .breadcrumb {
        font-size: 18px;
    }
    
    .single_product .product-page {
        flex-direction: row;
        margin-bottom: 20px;
    }
    
    .single_product .thumbnails {
        flex-direction: row;
        gap: 10px;
    }
    
    .single_product .thumbnails img {
        width: 88px;
        height: 88px;
    }
    
    .single_product .main-image img {
        width: 480px;
    }
    
    .single_product .image-section {
        flex-direction: column-reverse;
    }
    
    .single_product .product-info {
        padding-left: 15px;
    }
    
    .single_product .product-info .title {
        font-size: 24px;
        margin-bottom: 10px;
    }
    
    .single_product .product-info .description,
    .single_product .product-info .capacity,
    .single_product .product-info .capacity span,
    .single_product .product-info .capacity .category,
    .single_product .product-info .price {
        font-size: 16px;
    }
    
    .single_product .product-info .capacity {
        padding-bottom: 10px;
    }
    
    .single_product .product-info .nomal-price,
    .single_product .product-info .discount {
        font-size: 20px;
    }
    
    .single_product .product-info hr {
        margin-top: 5px;
    }
    
    .single_product .button {
        margin-top: 5px;
    }
    
    .single_product .quantity-control {
        margin-bottom: 15px;
    }
    
    .single_product .quantity-control button {
        height: 40px;
        width: 40px;
        font-size: 14px;
    }
    
    .single_product .quantity-control input[type="text"] {
        height: 40px;
        width: 40px;
        margin: 0 5px;
        font-size: 16px;
    }
    
    .single_product .add-to-cart {
        height: 40px;
        margin-left: 10px;
        padding: 5px 10px;
        font-size: 16px;
    }
}

@media (max-width: 1000px) {
    .single_product .thumbnails img {
        width: 65px;
        height: 65px;
    }

    .single_product .main-image img {
        width: 365px;
    }
}

@media (max-width: 745px) {
    .single_product {
        padding: 40px 0px 0px 0px;
    }

    .single_product nav {
        margin-bottom: 5px;
    }

    .single_product .breadcrumb {
        font-family: "Noto Serif TC", serif;
        font-size: 14px;
    }

    .single_product .product-page {
        flex-direction: column;
        margin-bottom: 20px;
    }

    .single_product .thumbnails {
        flex-direction: row;
        gap: 10px;
    }

    .single_product .thumbnails img {
        width: 83.2px;
        height: 83.2px;
    }

    .single_product .main-image img {
        width: 456px;
    }

    .single_product .image-section {
        flex-direction: column-reverse;
    }

    .single_product .product-info {
        padding-left: 0px;
        padding-top: 20px;
    }

    .single_product .product-info .title {
        font-size: 20px;
        margin-bottom: 5px;
    }

    .single_product .product-info .capacity,
    .single_product .product-info .capacity span,
    .single_product .product-info .capacity .category {
        font-size: 14px;
        margin-bottom: 5px;
    }

    .single_product .product-info .nomal-price,
    .single_product .product-info .discount {
        font-size: 18px;
    }

    .single_product .product-info .price {
        font-size: 12px;
    }

    .single_product .product-info hr {
        margin-top: 5px;
    }

    .single_product .button {
        margin-top: 5px;
    }
    
    .single_product .quantity-control input[type="text"] {
        font-size: 14px;
    }
    
    .single_product .add-to-cart {
        font-size: 14px;
    }
}

@media (max-width: 435px) {
    .single_product .thumbnails img {
        width: 73px;
        height: 73px;
    }
    
    .single_product .product-info .description {
        font-size: 14px;
    }
    
    .single_product .product-info .capacity,
    .single_product .product-info .capacity span,
    .single_product .product-info .capacity .category {
        font-size: 12px;
    }

    .single_product .main-image img {
        width: 405px;
    }
}

@media (max-width: 415px) {
    .single_product .thumbnails img {
        width: 70px;
        height: 70px;
    }

    .single_product .main-image img {
        width: 390px;
    }
}

@media (max-width: 395px) {
    .single_product .thumbnails img {
        width: 65px;
        height: 65px;
    }

    .single_product .main-image img {
        width: 365px;
    }
}

@media (max-width: 380px) {
    .single_product .thumbnails img {
        width: 62px;
        height: 62px;
    }

    .single_product .main-image img {
        width: 350px;
    }
}

@media (max-width: 365px) {
    .single_product .thumbnails img {
        width: 59px;
        height: 59px;
    }

    .single_product .main-image img {
        width: 335px;
    }
}

@media (max-width: 345px) {
    .single_product .thumbnails img {
        width: 56px;
        height: 56px;
    }

    .single_product .main-image img {
        width: 320px;
    }
}