.yichen_goods_read {}

.yichen_goods_read_left {
    width: 45%;
    display: flex;
    padding-right: 30px;
}

.yichen_goods_read_right {
    width: 55%;
}

.yichen_goods_read_top {
    padding: 34px 0 46px;
    color: #333;
    font-size: 14px;
    font-weight: 400;
}

#product-slider {
    width: 12%;
    max-height: 419px;
    overflow-y: auto;
}

#product-slider .swiper-button-prev:after,
#product-slider .swiper-button-next:after {
    display: none;
}

#product-slider .swiper-button-next,
#product-slider .swiper-button-prev {
    width: 100%;
    height: fit-content;
    padding: 3.475px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 2.317px;
    border: 1px solid rgba(0, 0, 0, 0.06);
    background: #FFF;
}
.swiper-button-prev.swiper-button-disabled,
.swiper-button-next.swiper-button-disabled{
    opacity: 0 !important;
}
#product-slider i{
    font-size: 12px !important;
    color: #000 !important;
}
#product-slider .swiper-button-next{
    top: auto;
    bottom: 0;
    right: 0;
    left: auto;
}
#product-slider .swiper-button-prev{
    bottom: auto;
    top: 22px;
    left: 0;
    right: auto;
}

#product-slider::-webkit-scrollbar {
    display: none;
}

#product-thumbs-slider {
    width: 80%;
}

#product-slider .swiper-wrapper {
    height: fit-content !important;
    flex-direction: column;
}

#product-slider .product-item {
    aspect-ratio: 1/1;
    height: auto !important;
    object-fit: cover;
}

#product-slider img {
    padding: 2px;
}

#product-slider .swiper-slide-thumb-active img {
    border: 2px solid var(--color-primary);
    border-radius: 5px;

}

.yichen_goods_read_right .product-title {
    color: #000;
    font-size: 27.598px;
    font-weight: 600;
    line-height: 33.118px;
}

.yichen_goods_read_right .yichen_goods_read_right_desc {
    color: #666;
    font-size: 12.879px;
    font-weight: 300;
    line-height: normal;
    margin-top: 18px;
    word-break: break-all;
}

.yichen_goods_read_right .line {
    width: 100%;
    height: 1px;
    background: #BFBFBF;
    margin: 20px 0;
}

.yichen_goods_read_right .yichen_goods_read_right_content {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.yichen_goods_read_right .yichen_goods_read_right_content span {
    color: #333;
    font-size: 14px;
    font-weight: 600;
    line-height: normal;
}

.yichen_goods_read_right .book {
    width: fit-content;
    display: flex;
    padding: 8px 30px;
    border: 1px solid var(--color-primary);
    justify-content: center;
    align-items: center;
    color: var(--color-primary);
    font-size: 20px;
    font-weight: 600;
    line-height: 33px;
    margin-top: 20px;
}

.pre-nav-list {
    display: flex;
    gap: 30px;
    margin-top: var(--component-gap);
    transition: all 0.3s ease;
    width: 100%;
    overflow-x: auto;
}

.pre-nav-list::-webkit-scrollbar {
    display: none;
}

.pre-nav-list.fixed {
    position: fixed;
    top: 60px;
    left: 0;
    width: 100%;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin: 0;
    justify-content: center;
    z-index: 1000;
}

.pre-nav-list.fixed .pre-nav-item {
    padding: 15px 26px 14px 27px;
}

.pre-nav-placeholder {
    width: 100%;
    display: block;
}

.pre-nav-item {
    padding: 20px 26px 19px 27px;
    color: #000;
    text-align: center;
    font-size: 20px;
    font-weight: 400;
    line-height: 33px;
    cursor: pointer;
}

.pre-nav-item:hover {
    color: var(--color-primary);
    font-weight: 700;
}

.pre-nav-item.active {
    font-weight: 700;
    color: var(--color-primary);
    position: relative;
}

.pre-nav-item.active::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 2px;
    background: var(--color-primary);
}

.pre-nav-list-wrapper {
    height: 72px;
    background: #FFF;
    box-shadow: 0 4px 4px 0 rgba(0, 0, 0, 0.10);
}

.yichen_goods_read_parameter {
    padding: 60px 0;
}

.yichen_goods_read_parameter_title {
    color: #000;
    font-size: 30px;
    font-weight: 900;
    line-height: 33px;
    text-transform: uppercase;
}

.yichen_goods_read_parameter_content {
    margin-top: 50px;
    display: flex;
    align-items: center;
    gap: 67px;
}

.rich-text ul {
    padding-left: 20px !important;
}

.yichen_goods_read_parameter_content p {
    text-align: justify;
}

.yichen_goods_read_parameter_content_img {
    width: calc(42.5% - 67px);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.yichen_goods_read_parameter_content_img img {
    width: 100%;
    height: auto;
    aspect-ratio: 1/1;
    object-fit: cover;
}

.yichen_goods_read_parameter_content .rich-text {
    width: 100%;
}

.yichen_goods_read_parameter ul {
    list-style: inherit !important;
}

.yichen_goods_read_extension {
    padding: 60px 0;
}

.yichen_goods_read_extension_title {
    color: #000;
    font-size: 30px;
    font-weight: 700;
    line-height: 33px;
    text-transform: uppercase;
}

.yichen_goods_read_extension_content {
    margin-top: 50px;
}


@media (max-width: 1200px) {
    #product-slider {
        max-height: 310px;
    }

    .yichen_goods_read_parameter_content {
        gap: 30px;
    }

    .yichen_goods_read_parameter_content_img {
        width: calc(42.5% - 30px);
    }
}

@media (max-width: 992px) {
    #product-slider {
        max-height: 576px;
    }

    .yichen_goods_read_parameter_content {
        flex-direction: column;
    }

    .yichen_goods_read_parameter_content_img {
        width: 100%;
    }

    .yichen_goods_read_parameter_content .rich-text {
        width: 100%;
        order: 3;
    }

    .yichen_goods_read_parameter,
    .yichen_goods_read_extension {
        padding: 30px 0;
    }

    .yichen_goods_read_parameter_content,
    .yichen_goods_read_extension_content {
        margin-top: 30px;
    }

    .pre-nav-list {
        gap: 15px;
    }

    .pre-nav-item {
        padding: 15px 20px;
    }

    .yichen_goods_read .row {
        flex-direction: column;
    }

    .yichen_goods_read_left {
        width: 100%;
        padding-right: 0;
    }

    .yichen_goods_read_right {
        width: 100%;
    }
}

@media (max-width: 768px) {
    #product-slider {
        max-height: 432px;
    }
}

@media (max-width: 576px) {
    #product-slider {
        max-height: 360px;
    }
}

@media (max-width: 480px) {
    #product-slider {
        max-height: 288px;
    }
}