@media screen and (max-width: 1080px) {
  .headermid_right_search {
    right: 55px;
  }

  .headermenumobile {
    right: 15px;
  }

  .headermid a img {
    height: 40px;
  }

  .pright {
    display: none !important;
  }
}

/* PC 默认：手机换行隐藏 */
.br-m {
  display: none;
}

@media screen and (max-width: 768px) {
  html,
  body {
    overflow-x: hidden;
  }

  .mid {
    width: 92%;
    margin: 0 auto;
  }

  .nav .sub-tit {
    padding: .85rem 5%;
    line-height: 1.5;
    cursor: pointer;
    border-bottom: 1px solid #eee;
    color: #333;
    font-size: 1rem;
  }

  .nav .sub-tit.on {
    background: linear-gradient(to right, #1452a3, #07a8a3) !important;
    color: #fff !important;
  }

  .nav .sub-tit.on .icon {
    fill: #fff !important;
  }

  .nav .sec-list {
    background: linear-gradient(to right, #1452a3, #07a8a3) !important;
  }

  .nav .sec-list a {
    color: #fff !important;
  }

  .nav .sec-list a::before {
    background: #fff !important;
  }

  .nav .warp-btn span {
    display: block;
    width: 100%;
    cursor: pointer;
    color: #333;
    font-size: 1rem;
  }

  .warp-nav {
    z-index: 998;
  }

  /* 1. Banner：主标题加大、行高收紧；图片跟 PC 一致 */
  .indexbannerimg {
    min-height: 100vh;
    height: 100vh;
  }

  .mobileimgbanner {
    display: none !important;
  }

  .indexbannerimg_bg {
    display: block !important;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-position: center center !important;
    background-size: cover !important;
  }

  [class^="indexline_"] {
    display: none !important;
  }

  .indexbanner_jj {
    top: 46%;
    width: 92%;
    left: 4%;
    padding-right: 0;
  }

  .indexbanner_jj_1 {
    font-size: 1.35em !important;
    line-height: 1.25 !important;
  }

  .indexbanner_jj_1 .fsf {
    font-size: 18px !important;
    margin-bottom: 6px !important;
    padding-bottom: 0 !important;
    line-height: 1.2 !important;
  }

  .indexbanner_jj_1 .banner-main-tit,
  .indexbanner_jj_1 span.banner-main-tit,
  .indexbanner_jj_1 span[style] {
    font-size: 24px !important;
    line-height: 1.3 !important;
  }

  .br-pc {
    display: none !important;
  }

  .br-m {
    display: inline !important;
  }

  .indexbanner_jj_3 {
    display: none !important;
  }

  .indexbanner_jj_2 {
    font-size: .8125em;
    line-height: 1.7;
    margin-bottom: 16px;
  }

  .indexbanner_jj .ba_more a {
    margin-top: 16px;
    width: 96px;
    line-height: 34px;
    font-size: 14px;
  }

  .batu {
    height: auto;
    margin: 16px 0 0;
  }

  .batu img {
    width: 100%;
    height: auto;
    max-width: 320px;
  }

  .swiper-container-banner .swiper-button-next,
  .swiper-container-banner .swiper-button-prev {
    width: 36px;
    height: 36px;
    margin-top: -18px;
  }

  /* 2. 公司简介：用电脑端同款图 */
  .index_1 {
    padding-top: 2.5em;
    padding-bottom: 2em;
  }

  .index_1_m {
    display: none !important;
  }

  .index_1_right {
    display: block !important;
    margin-left: 0 !important;
    width: 92%;
    margin: 0 auto;
  }

  .index_1_right img {
    width: 100%;
    height: auto;
    display: block;
  }

  .index_1_left {
    position: static !important;
    width: 92% !important;
    margin: 1.2em auto 0 !important;
    transform: none !important;
    -webkit-transform: none !important;
  }

  .index_1_left_2 {
    font-size: 1.15em;
    margin-top: 1em;
  }

  .index_1_left_3 {
    font-size: .9375em;
    -webkit-line-clamp: 6;
  }

  .indexf,
  .fsf {
    font-size: 1.75em;
  }

  /* 3. 产品列表：上下结构，右侧图文可见 */
  .index_ccpp {
    padding: 2em 0;
    background-size: cover;
  }

  .index_news {
    overflow: visible;
  }

  .tab-wrapper {
    display: block !important;
    flex-direction: column;
  }

  .tab-menu {
    float: none !important;
    width: 100% !important;
    margin-bottom: 1em !important;
  }

  .tab-menu li {
    width: 100% !important;
    box-sizing: border-box;
    padding: 12px 4% !important;
    font-size: 14px !important;
    margin-bottom: 6px !important;
  }

  .tab-content {
    float: none !important;
    width: 100% !important;
    min-height: 0 !important;
    position: relative !important;
  }

  .tab-content > div {
    position: relative !important;
    top: auto !important;
    left: auto !important;
    opacity: 0;
    visibility: hidden;
    height: 0;
    overflow: hidden;
    pointer-events: none;
  }

  .tab-content > div.active {
    opacity: 1 !important;
    visibility: visible !important;
    height: auto !important;
    overflow: visible !important;
    pointer-events: auto !important;
  }

  .news_con {
    overflow: visible;
  }

  .news_l {
    float: none !important;
    width: 100% !important;
    height: 220px !important;
    margin-bottom: 1em;
  }

  .news_l img {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .news_r {
    float: none !important;
    width: 100% !important;
    margin-right: 0 !important;
  }

  .news_r h3 {
    font-size: 22px !important;
    line-height: 1.4 !important;
  }

  .news_r .news_r_con {
    height: auto !important;
    margin: 16px 0 !important;
    font-size: 14px !important;
    line-height: 1.7 !important;
  }

  /* 4. 应用领域 iframe：高度随内容 */
  #infoo {
    height: 560px !important;
    min-height: 520px;
  }

  /* 5. 底部：缩小 logo，隐藏二维码与其他栏目，保留联系我们 */
  .footer_1_mid {
    padding: 1.25em 0;
  }

  .footer_1_mid_left img {
    height: 22px !important;
  }

  .footer_2 {
    margin: 1.25em 0;
  }

  .footer_2_mid_left {
    display: none !important;
  }

  .footer_2_mid_right {
    display: block !important;
    float: none !important;
    width: 100% !important;
    padding: 0 !important;
  }

  .footer_2_mid_right:after {
    display: none !important;
  }

  .footer_2_mid_right ul {
    margin: 0 !important;
    padding: 0 !important;
    overflow: visible !important;
  }

  .footer_2_mid_right ul li {
    display: none !important;
    float: none !important;
    width: 100% !important;
    position: static !important;
  }

  .footer_2_mid_right ul li:last-child {
    display: block !important;
  }

  .footer_2_mid_right ul li:last-child dl {
    line-height: 1.9;
    font-size: .9375em;
    padding-right: 0;
  }

  .footer_3_mid_left,
  .footer_3_mid_right {
    float: none;
    width: 100%;
    text-align: center;
    font-size: .8125em;
    line-height: 1.8;
  }

  .nybanner {
    min-height: 220px;
  }

  .nybannerjj_2 {
    font-size: 1.5em;
  }

  .index_2_mid_4 {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: 20px;
  }

  .index_2_mid_4 .tta {
    width: 48%;
    height: auto;
    min-height: 100px;
    margin-right: 0;
    margin-bottom: 10px;
    font-size: 12px;
  }

  .index_2_mid_4 .tta img {
    height: 32px;
    padding-top: 18px;
    padding-bottom: 6px;
  }

  .index_2_mid_4 .tta p {
    font-size: 12px;
    line-height: 1.4;
    padding: 0 4px 10px;
  }
}

@media screen and (max-width: 480px) {
  .headermid a img {
    height: 34px;
  }

  .indexbanner_jj_1 .banner-main-tit,
  .indexbanner_jj_1 span.banner-main-tit,
  .indexbanner_jj_1 span[style] {
    font-size: 22px !important;
    line-height: 1.28 !important;
  }

  .news_l {
    height: 180px !important;
  }

  .news_r h3 {
    font-size: 18px !important;
  }

  #infoo {
    height: 540px !important;
    min-height: 500px;
  }

  .footer_1_mid_left img {
    height: 20px !important;
  }
}