@media screen and (max-width: 750px) and (min-width: 320px) {
  .w1200 {
    width: 100%;
    padding: 0 0.32rem;
    margin: 0 auto;
  }
  header {
    display: none;
  }
  .m_head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 0.32rem;
    background: #fff;
    position: sticky;
    top: 0;
    z-index: 10000;
  }
  .m_head .logo {
    font-size: 0;
  }
  .m_head .logo p {
    font-size: 0.36rem;
  }
  .m_head .logo img {
    width: 1.6rem;
  }
  .m_head .menu svg {
    width: 0.6rem;
    height: auto;
  }
  .mask {
    opacity: 0;
    transition: all 0.36s;
  }
  .mm_ .mask.m_act {
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100000;
    opacity: 1;
  }
  .nav {
    position: fixed;
    top: 0;
    left: -100%;
    z-index: 100001;
    width: 4rem;
    height: 100vh;
    transition: all 0.5s;
    background: #fff;
  }
  .nav ul li {
    text-align: center;
  }
  .nav ul a {
    font-size: 0.32rem;
    color: #333;
  }
  .nav p {
    text-align: center;
    margin-top: 1rem;
  }
  .nav p img {
    width: 2rem;
  }
  .mm_ .nav.n_act {
    left: 0;
  }
  .h_yyly {
    margin: 0.6rem auto;
  }
  .h_yyly .main2 {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    margin-top: 0.6rem;
  }
  .h_yyly .main2 .item {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    margin-bottom: 0.4rem;
  }
  .h_yyly .main2 .item img {
    width: 2.4rem;
    height: 2.4rem;
  }
  .h_yyly .main2 .item h3 {
    font-size: 0.32rem;
    margin: 0.36rem 0;
  }
  .h_yyly .main2 .item p {
    font-size: 0.28rem;
    color: #5a5a5a;
    text-align: center;
    line-height: 1.6;
  }
  .h_yyly .top {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .h_yyly .top h3 {
    font-size: 0.36rem;
    color: #424242;
  }
  .h_yyly .top span {
    width: 0.8rem;
    height: 2px;
    background: #eb2e2e;
    margin: 0.36rem 0;
  }
  .h_yyly .top p {
    width: 90%;
    text-align: center;
    font-size: 0.28rem;
    color: #666;
    line-height: 1.6;
  }
  .h_about3 {
    padding: 0.8rem 0;
  }
  .h_about3 .worp h3 {
    text-align: center;
    font-size: 0.4rem;
    color: #fff;
    margin-bottom: 0.4rem;
  }
  .h_about3 .worp p {
    text-align: center;
    font-size: 0.28rem;
    color: #fff;
    line-height: 1.6;
  }
  .h_about3 .worp .box {
    display: flex;
    justify-content: space-between;
    margin-top: 1rem;
  }
  .h_about3 .worp .box .item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .h_about3 .worp .box .item h4 {
    color: #fff;
    font-size: 0.6rem;
  }
  .h_about3 .worp .box .item span {
    width: 90%;
    height: 1px;
    background: #fff;
    margin: 0.28rem 0;
  }
  .h_about3 .worp .box .item p {
    color: #fff;
    font-size: 0.28rem;
  }
  .h_pro {
    margin: 0.8rem auto;
  }
  .h_pro .top {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .h_pro .top h3 {
    font-size: 0.4rem;
    color: #424242;
  }
  .h_pro .top span {
    width: 0.8rem;
    height: 2px;
    background: #eb2e2e;
    margin: 0.4rem 0;
  }
  .h_pro .top p {
    text-align: center;
    font-size: 0.24rem;
    line-height: 1.6;
    color: #888;
  }
  .h_pro .worp {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-gap: 0.36rem;
    margin-top: 0.6rem;
  }
  .h_pro .worp .item {
    overflow: hidden;
    border: 1px solid #dedede;
    padding: 0.32rem;
    transition: border 0.36s;
  }
  .h_pro .worp .item:hover {
    border: 1px solid #eb2e2e;
  }
  .h_pro .worp .item .img_box {
    width: 100%;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .h_pro .worp .item .img_box img {
    max-width: 100%;
    height: auto;
  }
  .h_pro .worp .item p {
    font-size: 0.28rem;
    text-align: center;
    margin-top: 0.44rem;
  }
  .h_about2 {
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 0;
  }
  .h_about2 h3 {
    text-align: center;
    font-size: 0.36rem;
    color: #fff;
    margin-bottom: 0.6rem;
  }
  .h_about2 p {
    text-align: center;
    font-size: 0.32rem;
    color: #fff;
    margin-top: 0.48rem;
    margin-bottom: 0.36rem;
  }
  .h_about2 span {
    text-align: center;
    font-size: 0.28rem;
    line-height: 1.6;
    color: #fff;
  }
  .h_about2 a {
    width: 2.2rem;
    height: 0.8rem;
    line-height: 0.8rem;
    color: #eb2e2e;
    text-align: center;
    font-size: 0.28rem;
    background: #fff;
    margin-top: 0.8rem;
  }
  .h_news {
    margin: 0.8rem auto;
  }
  .h_news .top {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 0.4rem;
  }
  .h_news .top h3 {
    font-size: 0.4rem;
    color: #424242;
  }
  .h_news .top span {
    width: 0.8rem;
    height: 2px;
    background: #eb2e2e;
    margin: 0.36rem 0;
  }
  .h_news .top p {
    text-align: center;
    font-size: 0.24rem;
    color: #888;
    line-height: 1.6;
  }
  .h_news .tab {
    display: flex;
    justify-content: center;
    margin-top: 0.8rem;
    margin-bottom: 1.2rem;
  }
  .h_news .tab a {
    width: 3.26rem;
    height: 1rem;
    line-height: 1rem;
    text-align: center;
    background: #f6f6f6;
    color: #666;
    font-size: 0.28rem;
    transition: all 0.36s;
  }
  .h_news .tab a:hover {
    background: #eb2e2e;
    color: #fff;
  }
  .h_news .tab .act {
    background: #eb2e2e;
    color: #fff;
  }
  .h_news .worp {
    margin-bottom: 0.6rem;
  }
  .h_news .worp .list {
    display: flex;
    align-items: center;
    padding: 0.36rem 0;
    border-bottom: 1px solid #dedede;
  }
  .h_news .worp .list .date {
    width: 1.2rem;
    height: 1.2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #eb2e2e;
    margin-right: 0.4rem;
  }
  .h_news .worp .list .date p {
    color: #fff;
  }
  .h_news .worp .list .date p:first-child {
    font-size: 0.48rem;
  }
  .h_news .worp .list .date p:last-child {
    font-size: 0.24rem;
    margin-top: 5px;
  }
  .h_news .worp .list .text {
    flex: 1;
  }
  .h_news .worp .list .text p:first-child {
    font-size: 0.28rem;
    color: #434343;
  }
  .h_news .worp .list .text p:last-child {
    font-size: 0.24rem;
    color: #5a5a5a;
    margin-top: 8px;
  }
  footer {
    background: #333333;
    padding: 0.8rem 0;
  }
  footer .worp {
    display: flex;
    flex-direction: column;
  }
  footer .worp .item {
    flex: 1;
    padding-right: 1rem;
    margin-bottom: 0.4rem;
  }
  footer .worp .item h3 {
    color: #fff;
    font-size: 0.32rem;
    margin-bottom: 0.4rem;
  }
  footer .worp .item p {
    font-size: 0.28rem;
    color: #fff;
    margin-bottom: 10px;
  }
  footer .worp .item form {
    display: flex;
    align-items: center;
  }
  footer .worp .item form input,
  footer .worp .item form button {
    border: none;
    outline: none;
  }
  footer .worp .item form input {
    width: 80%;
    height: 0.8rem;
    background: #fff;
    padding-left: 0.36rem;
    box-sizing: border-box;
    font-size: 0.28rem;
  }
  footer .worp .item form button {
    width: 20%;
    height: 0.8rem;
    color: #fff;
    background: #eb2e2e;
    font-size: 0.28rem;
  }
  .about {
    padding-top: 0.8rem;
    padding-bottom: 0.8rem;
  }
  .about .top {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .about .top h3 {
    font-size: 0.4rem;
    color: #424242;
  }
  .about .top span {
    width: 0.8rem;
    height: 2px;
    background: #eb2e2e;
    margin: 0.36rem 0;
  }
  .about .top p {
    text-align: center;
    font-size: 0.24rem;
    line-height: 1.6;
    color: #888;
  }
  .about .main {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    margin-top: 0.6rem;
  }
  .about .main img {
    width: 100%;
  }
  .about .main .text {
    width: 100%;
    margin-top: 0.36rem;
  }
  .about .main .text p,
  .about .main .text span {
    font-size: 0.28rem !important;
    color: #5a5a5a !important;
    line-height: 1.6 !important;
    margin-bottom: 0.44rem;
  }
  .about2 {
    padding: 1.6rem 0;
  }
  .about2 .worp h3 {
    text-align: center;
    font-size: 0.36rem;
    color: #fff;
    margin-bottom: 0.6rem;
  }
  .about2 .worp p {
    text-align: center;
    font-size: 0.28rem;
    color: #fff;
    line-height: 1.6;
  }
  .about2 .worp .box {
    display: flex;
    justify-content: space-between;
    margin-top: 0.8rem;
  }
  .about2 .worp .box .item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .about2 .worp .box .item h4 {
    color: #fff;
    font-size: 0.4rem;
  }
  .about2 .worp .box .item span {
    width: 80%;
    height: 1px;
    background: #fff;
    margin: 0.32rem 0;
  }
  .about2 .worp .box .item p {
    color: #fff;
    font-size: 0.28rem;
  }
  .contact {
    padding-top: 0.8rem;
    padding-bottom: 0.8rem;
  }
  .contact .top {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .contact .top h3 {
    font-size: 0.4rem;
    color: #424242;
  }
  .contact .top span {
    width: 0.8rem;
    height: 2px;
    background: #eb2e2e;
    margin: 0.36rem 0;
  }
  .contact .top p {
    text-align: center;
    font-size: 0.24rem;
    color: #888;
    line-height: 1.6;
  }
  .contact .center {
    display: flex;
    flex-direction: column;
    margin: 0.8rem 0;
  }
  .contact .center h4 {
    font-size: 0.36rem;
    margin-bottom: 0.4rem;
  }
  .contact .center .c_l {
    width: 100%;
    margin-bottom: 0.6rem;
  }
  .contact .center .c_l p {
    font-size: 0.24rem;
    color: #666;
    margin-bottom: 0.28rem;
  }
  .contact .center .c_r {
    width: 100%;
  }
  .contact .center .c_r .input_group {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
  }
  .contact .center .c_r .input_group .list {
    width: 48%;
    margin-bottom: 0.4rem;
    font-size: 0;
  }
  .contact .center .c_r .input_group .list p {
    padding-bottom: 10px;
    color: #a5a5a5;
    font-size: 0.24rem;
  }
  .contact .center .c_r .input_group .list input {
    width: 100%;
    height: 0.76rem;
    border: 1px solid #dedede;
    font-size: 0.28rem;
  }
  .contact .map {
    width: 100%;
    height: 4rem;
    border: 1px solid #dedede;
  }
  .news {
    padding-top: 0.8rem;
    padding-bottom: 0.8rem;
  }
  .news .top {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .news .top h3 {
    font-size: 0.4rem;
    color: #424242;
  }
  .news .top span {
    width: 0.8rem;
    height: 2px;
    background: #eb2e2e;
    margin: 0.36rem 0;
  }
  .news .top p {
    text-align: center;
    font-size: 0.24rem;
    line-height: 1.6;
    color: #888;
  }
  .news .tab {
    display: flex;
    justify-content: center;
    margin-top: 0.4rem;
    margin-bottom: 0.8rem;
  }
  .news .tab a {
    width: 3.26rem;
    height: 0.8rem;
    line-height: 0.8rem;
    text-align: center;
    background: #f6f6f6;
    color: #666;
    font-size: 0.28rem;
    transition: all 0.36s;
  }
  .news .tab a:hover {
    background: #eb2e2e;
    color: #fff;
  }
  .news .tab .act {
    background: #eb2e2e;
    color: #fff;
  }
  .news .worp {
    margin-bottom: 0.8rem;
  }
  .news .worp .list {
    display: flex;
    align-items: center;
    padding: 0.28rem;
    border-bottom: 1px solid #dedede;
  }
  .news .worp .list .date {
    width: 1.2rem;
    height: 1.2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #eb2e2e;
    margin-right: 0.4rem;
  }
  .news .worp .list .date p {
    color: #fff;
  }
  .news .worp .list .date p:first-child {
    font-size: 0.48rem;
  }
  .news .worp .list .date p:last-child {
    font-size: 0.24rem;
    margin-top: 5px;
  }
  .news .worp .list .text {
    flex: 1;
  }
  .news .worp .list .text p:first-child {
    font-size: 0.28rem;
    color: #434343;
  }
  .news .worp .list .text p:last-child {
    font-size: 0.24rem;
    color: #5a5a5a;
    margin-top: 8px;
  }
  .pro {
    padding-top: 0.8rem;
    padding-bottom: 0.8rem;
  }
  .pro .top {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .pro .top h3 {
    font-size: 0.4rem;
    color: #424242;
  }
  .pro .top span {
    width: 0.8rem;
    height: 2px;
    background: #eb2e2e;
    margin: 0.36rem 0;
  }
  .pro .top p {
    text-align: center;
    font-size: 0.24rem;
    line-height: 1.6;
    color: #888;
  }
  .pro .pc_tab{
      display: none!important;
  }
  .pro .tab {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-top: 0.8rem;
    margin-bottom: 1.2rem;
  }
  .pro .tab ul {
    display: none;
  }
  .pro .tab .a {
    width: 50%;
    height: 0.6rem;
    line-height: 0.6rem;
    text-align: center;
    background: #f6f6f6;
    color: #666;
    font-size: 0.28rem;
    transition: all 0.36s;
    position: relative;
  }
  .pro .tab .a:hover {
    background: #EA5454;
  }
  .pro .tab .a:hover > a {
    color: #fff;
  }
  .pro .tab .act {
    background: #EA5454;
    color: #fff;
  }
  .pro .tab .act > a {
    color: #fff;
  }
  .pro .worp {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-gap: 0.32rem;
  }
  .pro .worp .item {
    overflow: hidden;
    border: 1px solid #f1f1f1;
    padding: 0.32rem;
    transition: border 0.36s;
  }
  .pro .worp .item:hover {
    border: 1px solid #eb2e2e;
  }
  .pro .worp .item .img_box {
    width: 100%;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .pro .worp .item .img_box img {
    max-width: 100%;
    height: auto;
  }
  .pro .worp .item p {
    font-size: 0.28rem;
    text-align: center;
    margin-top: 0.44rem;
  }
  .pro .pro_worp {
    width: 100%;
    display: flex;
    flex-direction: column;
    margin-bottom: 0.6rem;
  }
  .pro .pro_worp .left {
    width: 100%;
    padding-top: 100%;
    position: relative;
    border: 1px solid #ccc;
  }
  .pro .pro_worp .left img {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
  }
  .pro .pro_worp .right {
    width: 100%;
    padding-left: 0rem;
    margin-top: 0.6rem;
    padding-bottom: 1.2rem;
  }
  .pro .pro_worp .right .pdf {
    position: absolute;
    bottom: 0;
  }
  .pro .pro_worp .right .pdf svg {
    width: 1rem;
    height: 1rem;
  }
  .pro .pro_worp .right .t {
    font-size: 0.4rem;
    color: #585858;
    margin-bottom: 0.44rem;
  }
  .pro .pro_worp .right p {
    font-size: 14px;
    color: #666;
    margin-bottom: 16px;
  }
  .pro .tab_content {
    display: flex;
    border: 1px solid #EA5454;
    margin-bottom: 0.6rem;
  }
  .pro .tab_content p {
    width: 4rem;
    padding: 0.2rem 0.32rem;
    border-right: 1px solid #EA5454;
    text-align: center;
    cursor: pointer;
    font-size: 0.28rem;
  }
  .pro .tab_content .act {
    background: #EA5454;
    color: #fff;
  }
  .pro .content p,
  .pro .content span {
    font-size: 0.28rem !important;
    line-height: 1.8 !important;
  }
  .pro .content img{
      width: 100%;
      height: auto;
  }
  .yyly {
    padding-top: 0.8rem;
    padding-bottom: 0.8rem;
  }
  .yyly .main1 {
    position: relative;
    margin: 0.6rem 0;
  }
  .yyly .main1 .bck {
    width: 100%;
    height: 9.2rem;
  }
  .yyly .main1 .box {
    word-wrap: break-word;
    height: 8rem;
    padding: 0.36rem;
    background-color: #eb2e2e;
    width: 100%;
    overflow-y: scroll;
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
  }
  .yyly .main1 .box p {
    font-size: 0.26rem;
    color: #fff;
    line-height: 2;
  }
  .yyly .main2 {
    display: flex;
    justify-content: space-between;
    flex-direction: column;
    align-items: flex-start;
    margin-top: 0.8rem;
  }
  .yyly .main2 .item {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    margin-bottom: 0.4rem;
  }
  .yyly .main2 .item img {
    width: 2.4rem;
    height: 2.4rem;
  }
  .yyly .main2 .item h3 {
    font-size: 0.32rem;
    margin: 0.48rem 0;
  }
  .yyly .main2 .item p {
    font-size: 0.28rem;
    color: #5a5a5a;
    text-align: center;
    line-height: 2;
  }
  .yyly .top {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .yyly .top h3 {
    font-size: 0.4rem;
    color: #424242;
  }
  .yyly .top span {
    width: 0.8rem;
    height: 2px;
    background: #eb2e2e;
    margin: 0.36rem 0;
  }
  .yyly .top p {
    width: 90%;
    text-align: center;
    font-size: 0.28rem;
    color: #666;
    line-height: 1.6;
  }
  .newsInfo {
    width: 100%;
    margin: 0.6rem auto;
    padding: 0 0.32rem;
    font-size: 0;
  }
  .newsInfo .title {
    font-size: 0.32rem;
    padding-bottom: 16px;
    border-bottom: 1px solid #333;
    margin-bottom: 0.6rem;
    text-align: center;
  }
  .newsInfo .content p,
  .newsInfo .content span {
    font-size: 0.28rem !important;
    line-height: 1.8 !important;
  }
}