@media screen and (max-width: 767px) {
  .main_middle {
    width: 100%;
  }

  /* phone_menu_container */
  .phone_menu_container {
    position: fixed;
    top: 0;
    display: block;
    width: 100vw;
    height: 0;
    background-color: #fff;
    z-index: 9999;
    transition: height 300ms ease;
    overflow: hidden;
  }

  .phone_menu_top {
    height: 1.2rem;
    padding: 0 0.5rem;
  }

  .phone_menu_top .phone_menu_logo {
    width: 100%;
    height: 0.96rem;
  }

  .phone_menu_top .phone_menu_logo img {
    height: 100%;
  }

  .phone_menu_top .phone_menu_close {
    position: relative;
    top: 0;
    right: 0.05rem;
    width: 0.6rem;
    height: 0.6rem;
  }

  .phone_menu_top .phone_menu_close::before,
  .phone_menu_top .phone_menu_close::after {
    position: absolute;
    top: 0.3rem;
    width: 0.6rem;
    height: 2px;
    content: '';
    display: block;
    transform: rotateZ(45deg);
    transform-origin: center;
    background-color: #0774D9;
  }

  .phone_menu_top .phone_menu_close::after {
    transform: rotateZ(-45deg);
  }

  /* phone_menu_ul */
  .phone_menu_ul {}

  .phone_menu_li {
    border-bottom: 1px solid #eee;
  }

  .phone_menu_li .pml_main {
    height: 1rem;
    padding: 0 0.4rem 0 0.8rem;
  }

  .phone_menu_li .pml_main a {
    font-size: 0.3rem;
  }

  /* phone_roof */
  .phone_roof {
    position: fixed;
    display: flex;
    top: 0;
    width: 100vw;
    height: 1.2rem;
    padding: 0 0.5rem;
    justify-content: space-between;
    z-index: 999;
    background-color: rgba(255, 255, 255, 0.8);
  }

  .phone_roof .phone_main_logo {
    height: 80%;
  }

  .phone_roof .phone_main_logo img {
    height: 100%;
  }

  .phone_roof .phone_logo_right {
    position: relative;
    display: block;
    width: 0.6rem;
    height: 0.4rem;
  }

  .phone_roof .phone_logo_right::before {
    position: absolute;
    top: 0;
    content: '';
    display: block;
    width: 0.6rem;
    height: 2px;
    background-color: #0774D9;
  }

  .phone_roof .phone_logo_right .logo_r_line {
    position: absolute;
    top: 50%;
    width: 0.6rem;
    height: 2px;
    transform: translateY(-50%);
    background-color: #0774D9;
  }

  .phone_roof .phone_logo_right::after {
    position: absolute;
    bottom: 0;
    content: '';
    display: block;
    width: 0.6rem;
    height: 2px;
    background-color: #0774D9;
  }

  /* for_pc_roof */
  .for_roof {
    display: block;
    height: 1.2rem;
  }

  /* page_roof_container */
  .page_roof_container {
    display: none;
  }

  /* banner */
  .swiper-container {
    width: 100vw;
    margin-top: 0 !important;
  }

  .swiper-pagination {
    gap: 0.3rem;
    bottom: 0 !important;
  }

  .swiper-pagination .my-bullet {
    margin: 0.3rem 0;
    width: 0.6rem;
    height: 0.1rem;
    border-radius: 0.05rem;
  }

  /* about_wrapper */
  .about_wrapper {
    flex-direction: column;
    padding: 0.5rem 0.24rem;
  }

  .about_title {
    width: 100%;
    margin-bottom: 0.2rem;
  }

  .about_title h2 {
    font-size: 0.4rem;
  }

  .title_subject {
    gap: 0.2rem;
  }

  .title_subject h3 {
    font-size: 0.7rem;
  }

  .title_subject p {
    width: 3rem;
  }

  .title_subject p::after {
    width: 0.2rem;
    height: 0.2rem;
  }

  .title_subject h4 {
    font-size: 0.4rem;
    line-height: 1;
  }

  .about_content {
    font-size: 0.28rem;
  }

  /* about_num_wrapper */
  .about_num_wrapper {
    height: auto;
  }

  .about_num {
    width: 100vw;
    height: auto;
    flex-wrap: wrap;
    padding: 0.3rem 0;
    row-gap: 0.3rem;
  }

  .about_num_item {
    width: 50%;
    font-size: 0.24rem;
  }

  .about_num_item .ani_top {
    margin-bottom: 0.2rem;
  }

  .about_num_item .ani_top span {
    width: auto !important;
    font-size: 0.5rem;
  }

  .about_num_item .ani_bottom {
    font-size: 0.24rem;
  }

  /* chunk_title */
  .chunk_title {
    width: 100%;
    padding: 0 0.24rem;
  }

  .chunk_title h2 {
    margin-bottom: 0.3rem;
    font-size: 0.4rem;
    line-height: 0.8rem;
  }

  .chunk_title h2::after {
    width: 3.8rem;
    height: 0.8rem;
  }

  .chunk_title .title_subject h4 {
    font-size: 0.3rem;
  }

  /* product_wrapper */
  .product_wrapper {
    margin: 0.5rem auto;
  }

  .product_category {
    margin: 0.4rem 0 0.5rem;
    padding: 0 0.24rem;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 0.2rem;
  }

  .product_category a {
    width: calc(33.33% - 0.133rem);
    height: auto;
    font-size: 0.26rem;
  }

  .product_main {
    padding: 0 0.24rem;
    gap: 0.2rem;
  }

  .pm_single {
    width: 100%;
  }

  .pm_single img {
    height: auto !important;
  }

  .pm_single .pm_title {
    top: 0.4rem;
    right: 0.3rem;
    font-size: 0.36rem;
  }

  .pm_single .pm_more {
    left: 0.4rem;
    bottom: 0.4rem;
    width: 0.8rem;
    height: 0.8rem;
  }

  /* map_wrapper */
  .map_wrapper {
    height: 6rem;
    font-size: 0.28rem;
  }

  /* contact_wrapper */
  .contact_wrapper {
    height: auto;
  }

  .contact {
    height: auto;
  }

  .contact {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.5rem 0.24rem;
  }

  .contact_title {
    width: 100%;
  }

  .contact_main {
    flex: 1;
    gap: 0.2rem;
    margin: 0.2rem 0;
  }

  .contact_main .contact_item {
    gap: 0.3rem;
    font-size: 0.3rem;
  }

  .contact_main .contact_item img {
    width: 1rem;
  }

  .contact_right {
    width: 100%;
    font-size: 0.26rem;
  }

  .contact_right h5 {
    margin-bottom: 0.1rem;
  }

  /* news_wrapper */
  .news_wrapper {
    margin: 0.5rem auto;
  }

  .news_wrapper_title {
    margin-bottom: 0.5rem;
  }

  .news_main {
    flex-direction: column;
    gap: 0.5rem;
    padding: 0 0.24rem;
  }

  .news_main .news_single {
    width: 100%;
  }

  .news_main .news_single .news_time {
    height: 1rem;
    font-size: 0.38rem;
    color: #FFFFFF;
    line-height: 1rem;
  }

  .news_main .news_single .news_title {
    margin: 0.3rem 0 0.2rem;
    font-size: 0.32rem;
  }

  .news_main .news_single .news_content {
    font-size: 0.26rem;
  }

  /* bottom_wrapper */
  .bottom_wrapper {
    padding: 0.5rem 0;
  }

  .bottom {
    flex-direction: column;
    padding: 0 0.24rem;
  }

  .bottom_left {
    flex-direction: column;
    gap: 0.2rem;
  }

  .bottom_left dl {
    display: flex;
    flex-wrap: wrap;
  }

  .bottom_left dl dt {
    width: 100%;
    margin-bottom: 0.2rem;
    font-size: 0.36rem;
  }

  .bottom_left dl dd {
    margin-right: 0.2rem;
    margin-bottom: 0.2rem;
    font-size: 0.24rem;
  }

  .bottom_left dl dd a {
    color: #FFFFFF;
    opacity: 0.6;
  }

  .bottom_right {
    display: none;
  }

  /* footer */
  .footer_wrapper {
    height: auto;
  }

  .footer {
    height: auto;
    flex-direction: column;
    padding: 0.24rem;
    font-size: 0.24rem;
    align-items: flex-start;
  }

  .f_left {
    margin-bottom: 0.2rem;
    line-height: 1.3;
  }

  /* ny_banner */
  .ny_banner {
    position: relative;
    height: 5rem;
    margin-top: 0;
  }

  .ny_banner_middle {
    flex-direction: column;
    padding: 0 0.24rem;
    align-items: flex-start;
    justify-content: center;
  }

  .ny_banner_middle .banner_left {
    width: 100%;
    margin-bottom: 0.4rem;
  }

  .ny_banner_middle .banner_left h2 {
    font-size: 0.4rem;
  }

  .ny_banner_middle .banner_left h3 {
    width: 1.6rem;
    margin: 0.1rem 0;
  }

  .ny_banner_middle .banner_left h3::after {
    width: 0.2rem;
    height: 0.2rem;
  }

  .ny_banner_middle .banner_left h4 {
    width: 100%;
    font-size: 0.24rem;
  }

  .ny_banner_middle .banner_left h4 span {
    margin-top: 0.1rem;
  }

  .ny_banner_middle .banner_right {
    font-size: 0.26rem;
  }

  /* inside_main */
  .inside_main {
    margin-top: 1rem;
    margin-bottom: 1rem;
  }

  /* inside_about */
  .inside_about {
    gap: 3%;
    flex-direction: column;
    padding: 0 0.24rem;
  }

  .inside_about_left {
    width: 100%;
  }

  .inside_about_main {
    font-size: 0.26rem;
  }

  .inside_about_main img {
    width: 100%;
  }

  /* inside_picture_detail */
  .inside_picture_detail {
    padding: 0 0.24rem;
  }

  .inside_picture_detail .ipd_title {
    padding-bottom: 0.3rem;
    font-size: 0.4rem;
  }

  .inside_picture_detail .ipd_main {
    padding-top: 0.5rem;
  }

  .inside_picture_detail .ipd_main img {
    width: 100%;
  }


  /* popup_img_wrapper */
  .popup_img_wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding-top: 5vh;
    text-align: center;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 9999;
    display: none;
  }

  .popup_close {
    text-align: right;
    padding-right: 2vw;
    cursor: pointer;
  }

  .popup_img {
    max-width: 90vw;
    height: auto;
  }

  /* inside_news */
  .inside_news {
    flex-direction: column;
    padding: 0 0.24rem;
  }

  .inside_news_item {
    width: 100%;
    margin-bottom: 0.24rem;
    padding: 0.24rem;
  }

  .inside_news_item .news_m_date p {
    margin-right: 0.1rem;
    font-size: 0.4rem;
  }

  .inside_news_item .news_m_date span {
    font-size: 0.24rem;
    line-height: 1.4;
  }

  .inside_news_item .news_m_title {
    margin: 0.24rem 0;
    font-size: 0.26rem;
  }

  .inside_news_item .news_m_content {
    margin-bottom: 0;
    font-size: 0.24rem;
  }

  /* inside_news_detail */
  .inside_news_detail {
    padding: 0 0.24rem;
  }

  .inside_news_detail .ind_title_wrapper {
    margin-bottom: 0.5rem;
    padding-bottom: 0.3rem;
  }

  .inside_news_detail .ind_title_wrapper .ind_title {
    margin-bottom: 0.4rem;
    font-size: 0.4rem;
    line-height: 1.3;
  }

  .inside_news_detail .ind_title_wrapper .ind_info {
    font-size: 0.24rem;
  }

  .inside_news_detail .ind_main {
    font-size: 0.24rem;
  }

  .inside_news_detail .ind_title_wrapper .ind_info span {
    margin: 0 0.1rem;
  }


  /* inside_contact */
  .inside_contact {
    flex-direction: column;
    margin-bottom: 1rem;
    padding: 0 0.24rem;
  }

  .inside_map {
    width: 100%;
    height: 5rem;
    margin-bottom: 0.5rem;
  }

  .contact_content {
    width: 100%;
  }

  .contact_content h1 {
    margin-bottom: 0.3rem;
    font-size: 0.5rem;
  }

  .contact_content h2 {
    margin-bottom: 0.3rem;
    padding-bottom: 0.3rem;
    font-size: 0.34rem;
  }

  .contact_content p {
    font-size: 0.3rem;
  }

  /* 给我们留言 */
  .inside_message {
    flex-direction: column;
    padding: 0 0.24rem;
  }

  .inside_message .inside_form_input {
    margin-bottom: 0.3rem;
    width: 100%;
  }

  .inside_message .inside_form_input .inside_ipt {
    height: 1rem;
    font-size: 0.26rem;
    padding: 0 0.3rem;
  }

  .inside_message .inside_form_textarea {
    margin-bottom: 0.5rem;
  }

  .inside_message .inside_form_textarea .inside_area {
    height: 3rem;
    padding: 0.2rem 0.3rem;
    font-size: 0.26rem;
  }

  .inside_message .inside_form_btn .inside_btn {
    padding: 0.25rem 1rem;
    font-size: 0.26rem;
  }
}