body {
  min-height: 100%;
  font-family: 'int-r', 'PingFang SC', 'Microsoft YaHei', 'Microsoft YaHei UI', 'SimSun', 'SimHei', 'Arial';
  font-size: 16px;
  line-height: 1.5; 
}
@media screen and (min-width: 0px) {
    .top {
        line-height: 32rem;
        height: 32rem;
        text-align: right;
        padding-right: 40rem;
        background-color: #000;
        font-size: 18rem;
        color: #fff;
    }

    * .head {
        margin: 0rem;
        height: 90rem;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    * .head .logo {
        margin: 0rem;
        margin-left: 30rem;
    }

    * .head .logo img {
        margin: 0rem;
        width: 218rem;
    }

    * .head .nav {
        margin: 0rem;
    }

    * .head .nav ul {
        margin: 0rem;
        display: flex;
        width: 660rem;
        justify-content: space-around;
        padding-right: 160rem;
    }

    * .head .nav ul li {
        margin: 0rem;
        text-align: center;
        position: relative;
    }

    * .head .nav ul li .nav-active{
       font-size: 18rem;
       font-weight: 700;
    }

    * .head .nav ul li:hover .level_list {
        display: block;
    }

    * .head .nav ul li .level_list {
        width: 35rem;
        position: absolute;
        font-size: 12rem;
        font-weight: 500;
        background: #fff;
        z-index: 999;
        width: 297rem;
        text-align: left;
        padding: 20rem;
        display: none;
    }

    * .head .nav ul li .level_list .item {
        margin-bottom: 21rem;
    }

    * .head .nav ul li .level_list .item h1 {
        font-size: 18rem;
    }

    * .head .nav ul ul {
        display: block;
    }

    * .head .nav ul ul li {
        display: block;
        width: 100%;
        width: 121rem;
        text-align: left;
        margin-left: 20rem;
        margin-top: 10rem;
    }

    * .head .nav ul li a {
        margin: 0rem;
    }

    * .head .nav ul li .level_list a {
        font-weight: 500;
        color: #000;
        font-size: 16rem;
    }

    * .head .nav ul li a div {
        margin: 0rem;
        font-size: 22rem;
        color: #000;
    }

    * .head .nav ul li a .en {
        margin: 0rem;
        color: #565656;
        font-size: 19rem;
    }

    .head .logo .menu {
        display: none;
    }

    .head .search {
    }

    .head .search .icon {
        width: 30rem;
        height: 30rem;
        margin-right: 35rem;
    }

    .nav-active {
        font-weight: 700;
    }
}@media screen and (max-width: 750px) {
    
    * .head .nav {
        display: none;
        top: 122rem;
        left: 0rem;
        position: absolute;
        width: 100%;
        height: 100%;
        background: #fff;
        z-index: 999;
    }

    * .head .menu {
        display: block !important; 
    }
    * .head .nav ul {
        margin: 0rem;
        display: block;
        width: 100%;
        justify-content: space-around;
        padding-right: 0rem;
    }
    * .head .nav ul ul li {
        display: block;
        width: 100%;
        width: 100%;
        text-align: center;
        margin-left: 00rem;
        margin-top: 10rem;
    }

   * .head .nav ul li .level_list {
        width: 35rem;
        position: absolute;
        font-size: 12rem;
        font-weight: 500;
        background: #fff;
        z-index: 999;
        width: 100%;
        text-align: center;
        padding: 0 67rem;
        display: none;
    }
    * .head .logo { 
        display: flex;
    }

    * .head .logo img {
        margin: 0rem;
        width: 128rem;
    }

    * .head .nav ul {
        margin: 0rem;
        display: block;
        width: 100%;
        justify-content: space-around;
        padding-right: 0rem;
    }

      * .head .nav ul li a .en {
        margin: 0rem;
        color: #565656;
        font-size: 19rem;
        line-height: 40rem;
    }

     * .head .nav ul {
        margin: 0rem;
        display: block;
        width: 100%;
        justify-content: space-around;
        padding-right: 0rem;
    }   
     * .head .logo button {
        border: none;
        background-color: #fff0;
        margin-left: 12rem;
    }

    * .head .logo button .icon_bar {
        display: block;
        border: none;
        background-color: #000;
        width: 20rem;
        height: 1rem;
        margin-bottom: 8rem;
    }

    * .head .logo button .icon_bar:last-child {
        margin-bottom: 0rem;
    }

}@media screen and (min-width: 0px) {
    .top {
        line-height: 32rem;
        height: 32rem;
        text-align: right;
        padding-right: 40rem;
        background-color: #000;
        font-size: 18rem;
        color: #fff;
    }

    * .head {
        margin: 0rem;
        height: 90rem;
        display: flex;
        align-items: center;
        justify-content: space-between;
        background-color: #000;
    }

    * .head .logo {
        margin: 0rem;
        margin-left: 30rem;
    }

    * .head .logo img {
        margin: 0rem;
        width: 140rem;
    }

    * .head .nav {
        margin: 0rem;
        display: flex;
        justify-content: center;
        width: 100%;
    }

    * .head .nav ul {
        margin: 0rem;
        display: flex;
        min-width: 966rem;
        justify-content: space-around;
        padding-right: 0rem;
    }

    * .head .nav ul li {
        margin: 0rem;
        text-align: center;
        position: relative;
        margin: 0 10rem;
    }

    * .head .nav ul li .nav-active {
        font-size: 18rem;
        font-weight: 700;
    }

    * .head .nav ul li:hover .level_list {
        display: block;
    }

    * .head .nav ul li .level_list {
        width: 35rem;
        position: absolute;
        font-size: 12rem;
        font-weight: 500;
        background: #fff;
        z-index: 999;
        width: 297rem;
        text-align: left;
        padding: 20rem;
        display: none;
    }

    * .head .nav ul li .level_list .item {
        margin-bottom: 21rem;
    }

    * .head .nav ul li .level_list .item h1 {
        font-size: 18rem;
    }

    * .head .nav ul ul {
        display: block;
    }

    * .head .nav ul ul li {
        display: block;
        width: 100%;
        width: 121rem;
        text-align: left;
        margin-left: 20rem;
        margin-top: 10rem;
    }

    * .head .nav ul li a {
        margin: 0rem;
    }

    * .head .nav ul li .level_list a {
        font-weight: 500;
        color: #000;
        font-size: 16rem;
    }

    * .head .nav ul li a div {
        margin: 0rem;
        font-size: 22rem;
        color: #000;
    }

    * .head .nav ul li a .en {
        margin: 0rem;
        color: #fff;
        font-size: 19rem;
        text-transform: uppercase;
    }

    .head .logo .menu {
        display: none;
    }

    .head .search {
    }

    .head .search .icon {
        width: 30rem;
        height: 30rem;
        margin-right: 35rem;
    }

    .nav-active {
        font-weight: 700;
    }
}@media screen and (max-width: 750px) {
    
    * .head .nav {
        display: none;
        top: 122rem;
        left: 0rem;
        position: absolute;
        width: 100%;
        height: 100%;
        background: #fff;
        z-index: 999;
    }

    * .head .menu {
        display: block !important; 
    }
    * .head .nav ul {
        margin: 0rem;
        display: block;
        width: 100%;
        justify-content: space-around;
        padding-right: 0rem;
    }
    * .head .nav ul ul li {
        display: block;
        width: 100%;
        width: 100%;
        text-align: center;
        margin-left: 00rem;
        margin-top: 10rem;
    }

   * .head .nav ul li .level_list {
        width: 35rem;
        position: absolute;
        font-size: 12rem;
        font-weight: 500;
        background: #fff;
        z-index: 999;
        width: 100%;
        text-align: center;
        padding: 0 67rem;
        display: none;
    }
    * .head .logo { 
        display: flex;
    }

    * .head .logo img {
        margin: 0rem;
        width: 128rem;
    }

    * .head .nav ul {
        margin: 0rem;
        display: block;
        width: 100%;
        justify-content: space-around;
        padding-right: 0rem;
    }

      * .head .nav ul li a .en {
        margin: 0rem;
        color: #565656;
        font-size: 19rem;
        line-height: 40rem;
    }

     * .head .nav ul {
        margin: 0rem;
        display: block;
        width: 100%;
        justify-content: space-around;
        padding-right: 0rem;
    }   
     * .head .logo button {
        border: none;
        background-color: #fff0;
        margin-left: 12rem;
    }

    * .head .logo button .icon_bar {
        display: block;
        border: none;
        background-color: #000;
        width: 20rem;
        height: 1rem;
        margin-bottom: 8rem;
    }

    * .head .logo button .icon_bar:last-child {
        margin-bottom: 0rem;
    }

}@media screen and (min-width: 0px) {
    .nav {
    }

    .nav productclass {
    }

    .nav productclass a {
    }

    .nav productclass a name {
    }

    .nav productclass productclass {
    }

    .class {
    }

    .class a {
    }

    .class img {
        margin-bottom: 35rem;
    }

    .show_class {
        display: none;
    }

    .show_img {
    }

    .show_img .show_item {
        position: relative;
    }

    .show_img .show_item .s_img1 {
        width: 100%;
    }

    .show_img .show_item .s_t2 {
        margin-left: 100rem;
    }

    .show_img .show_item .s_title {
        position: absolute;
        bottom: 80rem;
        color: #fff;
    }

    .show_img .show_item .s_title .s_t_h1 {
        font-size: 76rem;
    }

    .show_img .show_item .s_title .s_t_h2 {
        text-align: center;
        font-size: 42rem;
        text-transform: uppercase;
    }

    .show_img .show_item .s_title .s_t_h3 {
        font-size: 30rem;
        text-align: center;
    }

    .show_img .show_item .s_title .s_t_h4 {
        font-size: 14rem;
        text-align: center;
        margin-top: 53rem;
    }

    .show_img .show_item .s_title .s_t_h4 a {
        display: flex;
        justify-content: center;
        align-items: center;
        cursor: pointer;
        position: relative;
        width: 59rem;
        margin: auto;
        color: #fff;
    }

    .show_img .show_item .s_title .s_t_h4 .svg_box {
        display: flex;
        align-items: center;
        justify-content: center;
        overflow: hidden;
        width: 15px;
        height: 15px;
        position: absolute;
        top: 0.05rem;
        right: -18.95rem;
    }

    .show_img .show_item .s_t {
        bottom: 8%;
        text-align: center;
        width: 100%;
        color: #fff;
    }

    .show_img .show_item .s_t1 .s_t_h1 {
        text-align: center;
    }

    .show_img .show_item .s_t1 .s_t_h2 {
    }

    .show_img .show_item .s_t1 .s_t_h3 {
    }

    .show_img .show_item .s_t1 {
        left: calc(50% - 230rem);
        bottom: 60rem;
        width: 460rem;
    }

    .show_img .show_item .s_t2 .s_t_h1 {
    }

    .show_img .show_item .s_t2 .s_t_h2 {
        text-align: left;
    }

    .show_img .show_item .s_t2 .s_t_h3 {
        text-align: left;
    }

    .show_img .show_item .s_t2 .s_t_h4 {
        text-align: left;
    }

    .show_img .show_item .s_t2 .s_t_h4 .svg_box {
        right: -17.95rem;
    }

    .show_img .show_item .s_t2 .s_t_h4 a {
        margin: 0;
        width: 60rem;
    }

    .show_img .show_item .s_t3 {
        right: 89rem;
        bottom: 200rem;
        text-align: left;
    }

    .show_img .show_item .s_t3 .s_t_h4 a {
        margin: 0;
    }

    .show_img .show_item .s_t3 .s_t_h1 {
    }

    .show_img .show_item .s_t3 .s_t_h2 {
        text-align: left;
    }

    .show_img .show_item .s_t3 .s_t_h3 {
        text-align: left;
    }
}