* {
  margin: 0;
  padding: 0;
}
.header {
  background: #ffffff;
  border-bottom: 0.01rem solid #E5E5E5;
}
.header .head_logo .logo1 {
  display: none;
}
.header .head_logo .logo2 {
  display: block;
}
.header .head_nav .nav_item > a {
  color: #242728;
}
.header .head_nav .nav_item.active > a,
.header .head_nav .nav_item a:hover {
  color: #D90B18;
}
.header .head_btn .search {
  filter: brightness(1) invert(0);
}
.header .head_btn .language .language_txt {
  background: #D90B18;
}
.header .head_btn .language .language_txt img {
  filter: brightness(0) invert(1);
}
.header .head_btn .language::before {
  background: #777777;
}
.banner_product {
  height: 7.8rem;
  background: url(../img/banner_bg.png) center no-repeat;
  background-size: cover;
  padding-top: 0.9rem;
  overflow: hidden;
}
.banner_product .main {
  display: flex;
  justify-content: space-between;
}
.banner_product .banner_txt {
  width: calc(50% - 1rem);
  height: auto;
  padding-top: 2.5rem;
}
.banner_product .banner_txt h2 {
  font-family: MiSans-Demibold;
  font-size: 0.4rem;
  color: #FFFFFF;
  position: relative;
}
.banner_product .banner_txt h2::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.32rem;
  width: 0.6rem;
  height: 0.02rem;
  background: #D90B18;
  transform: skewX(-50deg);
}
.banner_product .banner_txt .baner_key {
  margin-top: 0.82rem;
  font-family: MiSans-Regular;
  font-size: 0.24rem;
  color: #FFFFFF;
}
.banner_product .banner_txt .product_video{
    display: flex;
    align-items: center;
    cursor: pointer;
    column-gap: 0.16rem;
    margin-top: 0.3rem;
    font-size: 0.2rem;
    color: #fff;
} 
.banner_product .banner_txt .product_video>img{
    width: 0.46rem;
    height: auto;
}
.banner_product .banner_img {
  width: calc(50% + 0.78rem);
  max-height: 6.8rem;
  overflow: hidden;
  display: flex;
  align-items: center;
}
.banner_product .banner_img>img {
  width: 100%;
  height: auto;
}




.product_view {
  padding: 0.8rem 0 1rem;
}
.product_view .main {
  font-family: MiSans-Regular;
  font-size: 0.24rem;
  color: #242728;
  line-height: 1.666;
  text-align: center;
}
.product_swiper {
  background: #F2F2F2;
  min-height: 5.8rem;
}
.product_swiper .main {
  position: relative;
  overflow: hidden;
}
.product_swiper .main .swiper-button-next,
.product_swiper .main .swiper-button-prev {
  width: 0.5rem;
  height: 0.5rem;
  border: 0.01rem solid #C9C9C9;
  border-radius: 50%;
  top: auto;
  left: 0;
  margin: 0;
  bottom: 1rem;
}
.product_swiper .main .swiper-button-next:after,
.product_swiper .main .swiper-button-prev:after {
  font-size: 16px;
  color: #C9C9C9;
}
.product_swiper .main .swiper-button-next:hover,
.product_swiper .main .swiper-button-prev:hover {
  background: #D90B18;
  border-color: #D90B18;
}
.product_swiper .main .swiper-button-next:hover::after,
.product_swiper .main .swiper-button-prev:hover::after {
  color: #fff;
}
.product_swiper .main .swiper-button-next {
  right: auto;
  left: 0.6rem;
}
.product_div .product_body{
    min-height: 6rem;
}
.product_div .product_body:nth-child(2n) {
  background: #F2F2F2;
}
.product_div .product_body:nth-child(2n+1) .product_box {
  flex-direction: row-reverse;
}
.product_box {
  display: flex;
  justify-content: space-between;
}
.product_box .product_text {
  width: calc(50% - 2.4rem);
  padding-top: 1.2rem;
}
.product_box .product_text h3 {
  font-family: MiSans-Bold;
  font-size: 0.32rem;
  color: #242728;
  line-height: 1.4;
}
.product_box .product_text .product_type {
  margin-top: 0.2rem;
  font-family: MiSans-Regular;
  font-size: 0.18rem;
  color: #242728;
}
.product_box .product_text .product_info {
  margin-top: 0.4rem;
  font-family: MiSans-Regular;
  font-size: 0.16rem;
  color: #777777;
  line-height: 1.75;
}
.product_box .product_text .product_info img {
  max-width: 100%;
  width: revert-layer;
  height: auto;
}
.product_box .product_img {
  width: calc(50% + 1.6rem);
  max-height: 6.8rem;
  overflow: hidden;
}
.product_box .product_img img {
  max-width: 100%;
  max-height: 100%;
}
.product_box.box2 {
  display: block;
  padding: 0.8rem 0 0.7rem;
}
.product_box.box2 .product_text {
  width: 100%;
  padding: 0;
}
.product_box.box2 .product_text h3 {
  text-align: center;
  margin-bottom: 0.5rem;
}
.product_litpic {
  background: #F2F2F2;
  padding: 0.97rem 0 0.64rem;
  position: relative;
}
.product_litpic h3 {
  text-align: center;
  font-family: MiSans-Bold;
  font-size: 0.32rem;
  color: #242728;
  line-height: 1.4;
}
.product_litpic .main {
  margin-top: 0.6rem;
  position: relative;
  padding-bottom: 0.65rem;
}
.product_litpic .main .litpic_container {
  overflow: hidden;
}
.product_litpic .main .litpic_container .swiper-slide .litpic_img {
  width: 100%;
  height: 0;
  background: #fff;
  position: relative;
  padding-bottom: 71.8%;
  overflow: hidden;
}
.product_litpic .main .litpic_container .swiper-slide .litpic_img img {
  width: calc(100% - 0.5rem);
  height: calc(100% - 0.5rem);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.5s;
}
.product_litpic .main .litpic_container .swiper-slide .litpic_img:hover img {
  transform: translate(-50%, -50%) scale(1.1);
}
.product_litpic .main .litpic_container .swiper-slide .litpic_txt {
  margin-top: 0.2rem;
  text-align: center;
  font-family: MiSans-Regular;
  font-size: 0.18rem;
  color: #777777;
}
.product_litpic .main .swiper-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  bottom: 0;
}
.product_litpic .main .swiper-pagination span {
  width: 0.12rem;
  height: 0.12rem;
  background: #777777;
  opacity: 1;
  margin: 0 0.12rem !important;
  transition: all 0.5s;
}
.product_litpic .main .swiper-pagination span.swiper-pagination-bullet-active {
  width: 0.18rem;
  height: 0.18rem;
  background: #D90B18;
}
.product_litpic .main .swiper-button-next,
.product_litpic .main .swiper-button-prev {
  width: 0.5rem;
  height: 0.5rem;
  border: 0.01rem solid #C9C9C9;
  border-radius: 50%;
  top: 1.6rem;
  margin: 0;
}
.product_litpic .main .swiper-button-next:after,
.product_litpic .main .swiper-button-prev:after {
  font-size: 16px;
  color: #C9C9C9;
}
.product_litpic .main .swiper-button-next:hover,
.product_litpic .main .swiper-button-prev:hover {
  background: #D90B18;
  border-color: #D90B18;
}
.product_litpic .main .swiper-button-next:hover::after,
.product_litpic .main .swiper-button-prev:hover::after {
  color: #fff;
}
.product_litpic .main .swiper-button-prev {
  left: -0.65rem;
}
.product_litpic .main .swiper-button-next {
  right: -0.65rem;
}
.related {
  padding: 0.8rem 0 1.4rem;
}
.related h3 {
  font-family: MiSans-Bold;
  font-size: 0.32rem;
  color: #242728;
}
.related .product_list {
  display: flex;
  margin-top: 0.3rem;
  column-gap: 0.4rem;
}
.related .product_list .product_item {
  width: calc(25% - 0.3rem);
}
.related .product_list .product_item .product_img {
  width: 100%;
  height: 0;
  padding-bottom: 100%;
  position: relative;
  overflow: hidden;
}
.related .product_list .product_item .product_img img {
  width: calc(100% - 0.4rem);
  height: calc(100% - 0.4rem);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.5s;
}
.related .product_list .product_item .product_img:hover img {
  transform: translate(-50%, -50%) scale(1.1);
}
.related .product_list .product_txt {
  background: #F3F3F3;
  padding: 0.32rem 0.3rem 0.36rem;
}
.related .product_list .product_txt .product_title {
  font-family: MiSans-Heavy;
  font-size: 0.16rem;
  color: #333333;
}
.related .product_list .product_txt .product_info {
  margin-top: 0.17rem;
  font-family: MiSans-Regular;
  font-size: 0.16rem;
  color: #777777;
}



@media (max-width: 1042px) {
    .banner_product{
        background: url(../img/banner_bg.png) center no-repeat;
        background-size: cover;
        padding: 60px 0;
        height: auto;
    }
    .banner_product .banner_txt {
        width: calc(50% - 0.35rem);
        padding-top: 100px;
    }

    .banner_product .banner_img {
        width: calc(50% + 0.2rem);
    }
    .banner_product .banner_txt h2{
        font-size: 26px;
    }
    .banner_product .banner_txt h2::before{
        bottom: -15px;
    }
    .banner_product .banner_txt .baner_key{
        font-size: 22px;
        margin-top: 50px;
    }

    .product_view{
        padding: 80px 0;
    }
    .product_view .main{
        font-size: 22px;
    }

    .product_swiper{
        min-height: auto;
        padding: 40px 0;
    }
    .product_box{
        align-items: center;
    }

    .product_div .product_box{
        padding: 80px 0;
    }
    .product_box .product_text {
        width: calc(45% - 0.3rem);
        padding: 0;
    }

    .product_box .product_img {
        width: calc(55% - 0.1rem);
    }
    .product_box .product_text h3{
        font-size: 26px;
    }
    .product_box .product_text .product_info{
        font-size: 16px;
        margin-top: 20px;
    }
    .product_swiper .main .swiper-button-next, 
    .product_swiper .main .swiper-button-prev{
        bottom: 0;
        width: 42px;
        height: 42px;
    }

    .product_litpic,
    .related{
        padding: 80px 0;
    }
    .product_litpic h3,
    .related h3{
        font-size: 36px;
    }
    .related .product_list{
        flex-wrap: wrap;
    }
    .related .product_list .product_item{
        width: calc(50% - 0.2rem);
    }
}

@media (max-width: 768px) {
    .banner_product {
        height: auto;
        min-height: 6.8rem;
        padding-top: 1.28rem;
        padding-bottom: 0.56rem;
        background-position: center top;
    }

    .banner_product .main {
        display: block;
    }

    .banner_product .banner_txt,
    .banner_product .banner_img {
        width: 100%;
    }

    .banner_product .banner_txt {
        padding-top: 40px;
    }

    .banner_product .banner_txt h2 {
        font-size: 24px;
    }

    .banner_product .banner_txt .baner_key {
        margin-top: 40px;
        font-size: 16px;
    }

    .banner_product .banner_img {
        margin-top: 40px;
        max-height: none;
    }

    .product_view,
    .product_div .product_box{
        padding: 50px 0;
    }

    .product_view .main {
        font-size: 14px;
        text-align: left;
    }

    .product_swiper {
        min-height: auto;
        padding-bottom: 0.72rem;
    }
    .product_swiper .main .swiper-button-next{
        left: auto;
        right: 0;
    }
    .product_box,
    .product_div .product_body:nth-child(2n+1) .product_box {
        display: block;
    }

    .product_box .product_text,
    .product_box .product_img {
        width: 100%;
    }
    .product_box .product_text h3,
    .product_litpic h3,
    .related h3 {
        font-size: 18px;
    }

    .product_box .product_text .product_type,
    .product_box .product_text .product_info {
        font-size: 14px;
    }
    .product_box.box2 {
        padding: 0.62rem 0;
    }

    .product_box.box2 .product_text h3 {
        margin-bottom: 0.34rem;
    }

    .product_litpic {
        padding: 0.64rem 0 0.56rem;
    }

    .product_litpic .main {
        margin-top: 0.42rem;
    }
    .product_litpic .main .swiper-button-next, 
    .product_litpic .main .swiper-button-prev{
        display: none;
    }
    .product_litpic .main .litpic_container .swiper-slide .litpic_txt {
        font-size: 0.22rem;
    }

    .related {
        padding: 0.64rem 0 0.9rem;
    }

    .related .product_list {
        column-gap: 0.24rem;
        row-gap: 0.28rem;
    }

    .related .product_list .product_item {
        width: calc(50% - 0.12rem);
    }

    .related .product_list .product_txt {
        padding: 0.22rem 0.2rem 0.26rem;
    }

    .related .product_list .product_txt .product_title{
        font-size: 16px;
    }
    .related .product_list .product_txt .product_info {
        font-size: 14px;
        margin-top: 4px;
    }

    .related .product_list .product_item {
        width: 100%;
    }
}