@media (min-width: 769px) {
  .product-title {
    margin-bottom: 0.375rem;
    font-size: 0.6rem;
    line-height: 0.875rem;
    font-weight: bold;
  }
  .center-title {
    text-align: center;
    margin-bottom: 0.4rem;
  }
  .center-title .cn {
    color: #000;
    font-size: 0.45rem;
    line-height: 0.65rem;
    font-weight: bold;
  }
  .center-title .en {
    color: #9E9E9E;
    font-size: 0.175rem;
    line-height: 0.25rem;
    text-transform: uppercase;
  }
  .product-card {
    width: 100%;
    flex-shrink: 0;
    display: flex;
    padding: 0.3rem;
    background: #F5F5F5;
  }
  .product-card .swiper-preset-normal {
    width: 8.85rem;
    height: 5.775rem;
    flex-shrink: 0;
  }
  .product-card .swiper-preset-normal .swiper-slide {
    width: 8.85rem !important;
  }
  .product-card .swiper-preset-normal img {
    height: 5.775rem;
  }
  .product-detail {
    flex: 1;
    overflow: hidden;
    padding-left: 0.55rem;
  }
  .product-detail .info {
    padding: 0 0.25rem;
  }
  .product-detail .title {
    margin-bottom: 0.2rem;
    color: #000;
    font-size: 0.375rem;
    line-height: 0.5375rem;
    font-weight: bold;
  }
  .product-detail .desc {
    height: 2.25rem;
    margin-bottom: 0.1rem;
    color: #333;
    font-size: 0.25rem;
    line-height: 0.45rem;
  }
  .product-detail .imgs {
    display: flex;
    height: 2.7rem;
  }
  .product-detail .imgs .img {
    width: calc(50% - 0.15rem);
    height: 100%;
  }
  .product-detail .imgs .img + .img {
    margin-left: 0.2875rem;
  }
  .product-overview {
    padding: 0.375rem 0.3rem;
    border-bottom: 1px solid #E8E9EC;
  }
  .product-overview .title {
    margin-bottom: 0.2rem;
    color: #000;
    font-size: 0.375rem;
    line-height: 0.5375rem;
    font-weight: bold;
  }
  .product-overview .content {
    color: #333;
    font-size: 0.25rem;
    line-height: 0.45rem;
    text-indent: 2em;
  }
  .product-overview .content p + p {
    margin-top: 1em;
  }
  .product-use {
    display: flex;
    padding: 0.375rem 0.3rem 0.1875rem;
    border-bottom: 1px solid #E8E9EC;
  }
  .product-use .left {
    border-right: 1px solid #E8E9EC;
  }
  .product-use .right {
    flex: 1;
    padding-left: 1.375rem;
  }
  .product-use .right .title {
    margin-bottom: 0.25rem;
  }
  .product-use .title {
    margin-bottom: 0.2rem;
    color: #000;
    font-size: 0.375rem;
    line-height: 0.5375rem;
    font-weight: bold;
  }
  .product-use .content {
    width: 28em;
    padding-right: 2em;
    color: #333;
    font-size: 0.25rem;
    line-height: 0.45rem;
  }
  .product-use .good-list {
    display: flex;
    flex-wrap: wrap;
    margin-left: -1rem;
  }
  .product-use .good-item {
    width: 33.3333333333%;
    color: #333;
    font-size: 0.25rem;
    line-height: 0.375rem;
    text-align: center;
  }
  .product-use .good-item:nth-child(3) ~ .good-item {
    margin-top: 0.5rem;
  }
  .product-use .good-item img {
    width: 0.575rem;
    height: 0.575rem;
    margin: 0 auto 0.125rem;
    transition: 0.3s all ease;
  }
  .product-use .good-item:hover img {
    transform: scaleX(-1);
  }
  .product-theory,
  .product-install {
    display: flex;
    padding: 0.3rem;
    margin-top: 0.375rem;
    background: #F5F5F5;
  }
  .product-theory .detail,
  .product-install .detail {
    flex: 1;
    overflow: hidden;
  }
  .product-theory .title,
  .product-install .title {
    margin-bottom: 0.2rem;
    color: #000;
    font-size: 0.375rem;
    line-height: 0.5375rem;
    font-weight: bold;
  }
  .product-theory .content,
  .product-install .content {
    color: #333;
    font-size: 0.225rem;
    line-height: 1.8;
    text-indent: 2em;
    max-height: 4.275rem;
    overflow-y: auto;
  }
  .product-theory .content::-webkit-scrollbar,
  .product-install .content::-webkit-scrollbar {
    display: block;
    opacity: 1;
    z-index: 11;
    width: 4px;
  }
  .product-theory .content::-webkit-scrollbar:horizontal,
  .product-install .content::-webkit-scrollbar:horizontal {
    height: 4px;
  }
  .product-theory .content::-webkit-scrollbar-thumb,
  .product-install .content::-webkit-scrollbar-thumb {
    width: 4px;
    border-radius: 4px;
    background: #143A84;
  }
  .product-theory .swiper-preset-normal,
  .product-install .swiper-preset-normal {
    width: 7.5rem;
    height: 5rem;
    flex-shrink: 0;
  }
  .product-theory .swiper-preset-normal img,
  .product-install .swiper-preset-normal img {
    height: 5rem;
  }
  .product-theory .detail {
    padding-right: 0.3rem;
  }
  .product-theory .content {
    padding-right: 0.1rem;
  }
  .product-install .detail {
    padding-left: 0.5rem;
  }
  .product-install .content {
    padding-right: 0.1rem;
  }
  .product-features {
    padding: 0.375rem 0;
  }
  .product-features .swiper-slide {
    display: flex;
    height: 6.25rem;
  }
  .product-features .swiper-slide .left {
    width: 7.5rem;
    height: 100%;
    flex-shrink: 0;
    position: relative;
  }
  .product-features .swiper-slide .right {
    flex: 1;
    overflow: hidden;
    padding-left: 0.375rem;
  }
  .product-features .swiper-slide .img {
    width: 100%;
    height: 7.5rem;
    position: absolute;
    left: 0;
    top: 0;
  }
  .product-features .swiper-slide .img::before {
    content: " ";
    display: block;
    background-image: url("/themes/simplebootx/Index/Public/img/products/fimg.png");
    background-repeat: no-repeat;
    background-size: 100% 100%;
    width: 4.4875rem;
    height: 4.4875rem;
    position: absolute;
    left: 50%;
    top: 0.95rem;
    transform: translateX(-50%);
  }
  .product-features .swiper-slide .img img {
    height: 100%;
    position: relative;
    z-index: 2;
  }
  .product-features .swiper-slide .tel {
    display: flex;
    align-items: center;
    height: 0.65rem;
    padding: 0 0.225rem;
    background: #2350A1;
    border-radius: 0.65rem;
    color: #fff;
    font-size: 0.3rem;
    line-height: 0.4375rem;
    position: absolute;
    top: 5.3125rem;
    left: 0;
    z-index: 3;
  }
  .product-features .swiper-slide .tel img {
    width: 0.425rem;
    height: 0.425rem;
    margin-right: 0.1rem;
  }
  .product-features .slide-pagination {
    bottom: 0 !important;
  }
  .product-features .perfect-item {
    display: flex;
  }
  .product-features .perfect-item + .perfect-item {
    margin-top: 0.375rem;
  }
  .product-features .perfect-item img {
    flex-shrink: 0;
    width: 0.75rem;
    height: 0.75rem;
  }
  .product-features .perfect-item .info {
    flex: 1;
    overflow: hidden;
    padding-left: 0.4rem;
  }
  .product-features .perfect-item .title {
    margin-bottom: 0.15rem;
    color: #000;
    font-size: 0.3rem;
    line-height: 0.475rem;
    font-weight: bold;
  }
  .product-features .perfect-item .desc {
    color: #666;
    font-size: 0.2rem;
    line-height: 0.375rem;
    height: 1.125rem;
    overflow-y: auto;
  }
  .product-features .perfect-item .desc::-webkit-scrollbar {
    display: block;
    opacity: 1;
    z-index: 11;
    width: 4px;
  }
  .product-features .perfect-item .desc::-webkit-scrollbar:horizontal {
    height: 4px;
  }
  .product-features .perfect-item .desc::-webkit-scrollbar-thumb {
    width: 4px;
    border-radius: 4px;
    background: #143A84;
  }
  .product-service {
    padding-bottom: 0.5rem;
  }
  .product-service .service-list {
    display: flex;
    flex-wrap: wrap;
  }
  .product-service .service-item {
    display: flex;
    align-items: center;
    height: 2.375rem;
    padding: 0 0.375rem;
    background: #F5F5F5;
  }
  .product-service .service-item + .service-item {
    margin-left: 0.3rem;
  }
  .product-service .service-item img {
    flex-shrink: 0;
    width: 0.625rem;
    height: 0.625rem;
    margin-right: 0.35rem;
  }
  .product-service .service-item .title {
    margin-bottom: 0.125rem;
    color: #000;
    font-size: 0.3rem;
    line-height: 0.4375rem;
    font-weight: bold;
  }
  .product-service .service-item .desc {
    color: #666;
    font-size: 0.25rem;
    line-height: 0.375rem;
    padding-right: 0.5em;
  }
  .product-service .service-item:nth-child(5) {
    margin-left: 0;
  }
  .product-service .service-item:nth-child(5), .product-service .service-item:nth-child(6) {
    margin-top: 0.3rem;
  }
  .product-service .service-item:nth-child(3), .product-service .service-item:nth-child(4) {
    width: calc((50% - 0.46rem) / 2);
  }
  .product-service .service-item:nth-child(1), .product-service .service-item:nth-child(5), .product-service .service-item:nth-child(6) {
    width: calc(50% - 0.155rem);
  }
  .product-service .service-item:nth-child(1) img, .product-service .service-item:nth-child(5) img {
    width: 1.25rem;
    height: 1.25rem;
    margin-right: 0.5rem;
  }
}
@media (max-width: 768px) {
  .page-container {
    padding: 0.25rem 0;
  }
  .product-title {
    margin-left: 0.25rem;
    margin-bottom: 0.2rem;
    font-size: 0.3rem;
    line-height: 0.4375rem;
    font-weight: bold;
  }
  .center-title {
    text-align: center;
    margin-bottom: 0.2rem;
  }
  .center-title .cn {
    margin-bottom: 0.1rem;
    color: #000;
    font-size: 0.3rem;
    line-height: 0.4375rem;
    font-weight: bold;
  }
  .center-title .en {
    color: #9E9E9E;
    font-size: 0.15rem;
    line-height: 0.2125rem;
    text-transform: uppercase;
  }
  .product-card {
    padding: 0.2rem;
    background: #F5F5F5;
  }
  .product-card .swiper-preset-normal {
    height: 2.8rem;
  }
  .product-card .swiper-preset-normal img {
    height: 2.8rem;
  }
  .product-card .title {
    margin: 0.15rem 0;
    color: #000;
    font-size: 0.3rem;
    line-height: 0.4375rem;
    font-weight: bold;
  }
  .product-card .desc {
    color: #333;
    font-size: 0.2rem;
    line-height: 0.375rem;
  }
  .product-card .imgs {
    display: flex;
    margin-top: 0.2rem;
  }
  .product-card .imgs .img {
    width: calc(50% - 0.0625rem);
    height: 1.4125rem;
  }
  .product-card .imgs .img + .img {
    margin-left: 0.1125rem;
  }
  .product-overview {
    padding: 0.3rem 0.2rem 0.25rem;
    position: relative;
  }
  .product-overview::after {
    content: " ";
    display: block;
    border-bottom: 1px solid #E8E9EC;
    position: absolute;
    left: 0.2rem;
    right: 0.2rem;
    bottom: 0;
  }
  .product-overview .title {
    margin-bottom: 0.2rem;
    color: #000;
    font-size: 0.3rem;
    line-height: 0.4375rem;
  }
  .product-overview .content {
    color: #333;
    font-size: 0.2rem;
    line-height: 0.45rem;
    text-indent: 2em;
  }
  .product-overview .content p + p {
    margin-top: 1em;
  }
  .product-use {
    padding: 0.375rem 0.2rem;
    position: relative;
  }
  .product-use .left {
    padding-bottom: 0.25rem;
    border-bottom: 1px solid #E8E9EC;
  }
  .product-use .title {
    margin-bottom: 0.2rem;
    color: #000;
    font-size: 0.3rem;
    line-height: 0.4375rem;
  }
  .product-use .content {
    color: #333;
    font-size: 0.2rem;
    line-height: 0.45rem;
  }
  .product-use .right {
    padding-top: 0.375rem;
    padding-bottom: 0.25rem;
    border-bottom: 1px solid #E8E9EC;
  }
  .product-use .good-list {
    display: flex;
    flex-wrap: wrap;
    padding-top: 0.0625rem;
    margin: 0 -0.2rem;
  }
  .product-use .good-item {
    width: 33.3333333333%;
    color: #333;
    font-size: 0.2rem;
    line-height: 0.375rem;
    text-align: center;
  }
  .product-use .good-item:nth-child(3) ~ .good-item {
    margin-top: 0.375rem;
  }
  .product-use .good-item img {
    width: 0.45rem;
    height: 0.45rem;
    margin: 0 auto 0.2rem;
  }
  .product-theory,
  .product-install {
    padding: 0.2rem;
    background: #F5F5F5;
  }
  .product-theory .title,
  .product-install .title {
    margin: 0.2rem 0;
    color: #000;
    font-size: 0.3rem;
    line-height: 0.4375rem;
    font-weight: bold;
  }
  .product-theory .content,
  .product-install .content {
    color: #333;
    font-size: 0.2rem;
    line-height: 0.45rem;
    text-indent: 2em;
    overflow-y: auto;
    max-height: 3.6rem;
  }
  .product-theory .swiper-preset-normal,
  .product-install .swiper-preset-normal {
    height: 2.85rem;
  }
  .product-theory .swiper-preset-normal img,
  .product-install .swiper-preset-normal img {
    height: 2.85rem;
  }
  .product-theory {
    display: flex;
    flex-direction: column-reverse;
    border-bottom: 0.375rem solid #fff;
  }
  .product-features {
    padding: 0.25rem 0;
  }
  .product-features .swiper-slide {
    padding: 0 0.2rem;
  }
  .product-features .swiper-slide .left {
    padding-bottom: 0.375rem;
  }
  .product-features .swiper-slide .img {
    height: 3.075rem;
    position: relative;
  }
  .product-features .swiper-slide .img::before {
    content: " ";
    display: block;
    background-image: url("/themes/simplebootx/Index/Public/img/products/fimg.png");
    background-repeat: no-repeat;
    background-size: 100% 100%;
    width: 2.5625rem;
    height: 2.5625rem;
    position: absolute;
    left: 50%;
    top: 0.125rem;
    transform: translateX(-50%);
  }
  .product-features .swiper-slide .img img {
    height: 100%;
    position: relative;
    z-index: 2;
  }
  .product-features .swiper-slide .tel {
    width: 100%;
    height: 0.5rem;
    padding: 0 0.2rem;
    margin-top: -0.1rem;
    background: #2350A1;
    border-radius: 0.5rem;
    color: #fff;
    font-size: 0.2rem;
    line-height: 1;
    z-index: 3;
  }
  .product-features .swiper-slide .tel,
  .product-features .swiper-slide .tel span {
    display: flex;
    align-items: center;
  }
  .product-features .swiper-slide .tel img {
    width: 0.3rem;
    height: 0.3rem;
    margin-right: 0.225rem;
  }
  .product-features .swiper-slide .tel span span {
    font-size: 0.25rem;
  }
  .product-features .perfect-item {
    display: flex;
  }
  .product-features .perfect-item + .perfect-item {
    margin-top: 0.25rem;
  }
  .product-features .perfect-item img {
    flex-shrink: 0;
    width: 0.375rem;
    height: 0.375rem;
  }
  .product-features .perfect-item .info {
    flex: 1;
    overflow: hidden;
    padding-left: 0.125rem;
  }
  .product-features .perfect-item .title {
    margin-bottom: 0.125rem;
    color: #000;
    font-size: 0.25rem;
    line-height: 0.3625rem;
    font-weight: bold;
  }
  .product-features .perfect-item .desc {
    color: #666;
    font-size: 0.2rem;
    line-height: 0.375rem;
    height: 1.125rem;
    overflow-y: auto;
  }
  .product-features .swiper-preset-normal {
    padding-bottom: 0.75rem;
  }
  .product-service {
    padding: 0 0.2rem 0.25rem;
  }
  .product-service .service-list {
    display: flex;
    flex-wrap: wrap;
  }
  .product-service .service-item {
    display: flex;
    width: 100%;
    padding: 0.25rem 0.2rem;
    background: #F5F5F5;
  }
  .product-service .service-item + .service-item {
    margin-top: 0.2rem;
  }
  .product-service .service-item img {
    flex-shrink: 0;
    width: 0.625rem;
    height: 0.625rem;
    margin-right: 0.25rem;
  }
  .product-service .service-item .title {
    margin-bottom: 0.1rem;
    color: #000;
    font-size: 0.25rem;
    line-height: 0.3625rem;
    font-weight: bold;
  }
  .product-service .service-item .desc {
    color: #666;
    font-size: 0.2rem;
    line-height: 0.375rem;
  }
  .product-service .service-item:nth-child(3), .product-service .service-item:nth-child(4), .product-service .service-item:last-of-type {
    padding: 0.2rem;
    flex-direction: column;
  }
  .product-service .service-item:nth-child(3) img, .product-service .service-item:nth-child(4) img, .product-service .service-item:last-of-type img {
    width: 0.3rem;
    height: 0.3rem;
    margin-bottom: 0.125rem;
  }
  .product-service .service-item:nth-child(3) .title, .product-service .service-item:nth-child(4) .title, .product-service .service-item:last-of-type .title {
    font-size: 0.2rem;
    line-height: 0.2875rem;
  }
  .product-service .service-item:nth-child(3), .product-service .service-item:nth-child(4) {
    width: calc(50% - 0.0625rem);
  }
  .product-service .service-item:nth-child(3) {
    margin-right: 0.1125rem;
  }
}