@media (max-width: 1600px) {
  .header .header .header_left .nav a {
    font-size: 14px;
  }
  .header .header_right div span {
    display: none !important;
  }
  .header .header_right .search,
  .header .header_right .cart,
  .header .header_right .login,
  .header .header_right .lang {
    margin-right: 0.0521rem;
  }
  .header_right .search,
  .header_right .cart,
  .header_right .login,
  .header_right .lang {
    margin-right: 20px !important;
  }
}

@media (max-width: 1200px) {
  .header .header_right div img {
    height: 16px;
  }
  .header .userBox {
    width: 40%;
  }
  .header .userBox .loginBox,
  .header .userBox .forgetBox {
    flex-direction: column;
  }
  .header .userBox .loginBox .login_left,
  .header .userBox .loginBox .login_form,
  .header .userBox .forgetBox .login_left,
  .header .userBox .forgetBox .login_form,
  .header .userBox .registerBox .register_inputs .inputs {
    width: 100%;
  }
  .header .userBox .loginBox .login_form,
  .header .userBox .forgetBox .login_form {
    padding: 0.3333rem;
  }
  .header .header_left .nav {
    display: none;
  }
  .menu {
    display: flex !important;
  }
}

@media (max-width: 992px) {
  .header {
    height: 60px !important;
  }
  .cart_R_side {
    display: none !important;
  }
  .menu_mask .menu_box .menu_ul .nav_item .title {
    font-size: 18px;
  }
  .swiper .swiper-button-next,
  .swiper .swiper-button-prev {
    display: none;
  }
  .swiper .swiper-slide .swiperContent {
    top: 50%;
    left: 1.1979rem;
    transform: translateY(-50%);
  }
  .swiper .swiper-slide .swiperContent .content_text p {
    font-size: 16px;
    line-height: 1.5;
  }
  .video_section .title {
    font-size: 18px;
  }
  .video_section .video {
    flex-direction: column;
  }
  .videoBox {
    margin-top: 10px;
  }
  .videoBox .video_right {
    width: 100% !important;
    height: 430px !important;
    overflow: hidden;
  }
  .videoBox .video_right .start_icon {
    width: 50px !important;
  }
  .common_button {
    cursor: pointer;
    width: auto;
    height: auto;
    padding: 5px 10px;
    box-sizing: border-box;
    border-radius: 5px;
    position: relative;
    margin-top: 15px;
    background-color: #900816;
  }
  .common_button .button {
    display: none;
  }
  .common_button .content {
    width: 100%;
    position: relative;
    top: 0;
    left: 0;
    transform: translate(0, 0);
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .common_button .content img {
    display: none;
  }
  .common_button .content span {
    font-size: 16px;
    color: #fff;
    white-space: nowrap;
  }
  .common_button_white {
    cursor: pointer;
    width: auto;
    height: auto;
    padding: 5px 10px;
    box-sizing: border-box;
    border-radius: 5px;
    position: relative;
    margin-top: 15px;
    background-color: transparent;
    border: 2px solid #fff;
  }
  .common_button_white .button {
    display: none;
  }
  .common_button_white .content {
    width: 100%;
    position: relative;
    top: 0;
    left: 0;
    transform: translate(0, 0);
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .common_button_white .content span {
    font-size: 16px;
    color: #fff;
  }
  .who_section {
    flex-direction: column;
    padding: 0.5052rem 0.8333rem;
    box-sizing: border-box;
  }
  .who_section .who_img {
    width: 100%;
    height: 430px;
    overflow: hidden;
  }
  .who_section .who_right {
    margin-top: 10px;
    padding: 0;
  }
  .who_section .who_right .title {
    font-size: 18px;
  }
  .who_section .who_right p {
    font-size: 15px;
  }
  .product_section ul {
    flex-wrap: wrap;
  }
  .product_section ul li {
    width: 80%;
    flex: none;
    margin: 0 auto 10px;
  }
  .product_section ul li .mask .title {
    font-size: 18px;
  }
  .product_section ul li .mask .des {
    font-size: 14px;
    line-height: 1.2;
    display: block;
  }
  .IOS_section .title {
    font-size: 18px;
    height: auto;
  }
  .IOS_section ul {
    flex-direction: column;
  }
  .IOS_section ul li {
    width: 80%;
    margin-right: 0;
    height: auto;
  }
  .IOS_section ul li img {
    width: 70px;
  }
  .IOS_section ul li .iso_num,
  .IOS_section ul li .title {
    font-size: 16px;
  }
  .IOS_section ul li .des {
    font-size: 14px;
    line-height: 1;
    max-height: none;
    overflow-y: auto;
    margin: 10px 0;
  }
  .our_product .title {
    font-size: 18px;
  }
  .our_product .product_main {
    height: auto;
    padding: 20px 15px !important;
    flex-direction: column;
  }
  .our_product .product_main .main_left {
    margin: auto;
  }
  .our_product .product_main .main_right .title,
  .new_product .title {
    font-size: 18px;
  }
  .our_product .product_box .product_items .item {
    width: 48%;
    height: auto;
    padding: 20px 0 !important;
    margin-top: 15px;
  }
  .our_product .product_box .product_items .item a .product_name {
    font-size: 16px;
  }
  .our_product .product_box .product_items .item a .price {
    font-size: 14px;
  }
  .buttons .rfq_button,
  .buttons .data_button {
    height: auto !important;
    padding: 5px 6px !important;
  }
  .new_product .navigation .arrow2_left,
  .new_product .navigation .arrow2_right {
    width: 20px;
    height: 20px;
  }
  footer .footer .footer_left .logo_wechat {
    height: 60px;
  }
  footer .footer .footer_left .logo_wechat .logo {
    width: 120px;
  }
  footer .footer .footer_left .nav {
    flex-wrap: wrap;
  }
  footer .footer .footer_left .nav li {
    width: 45%;
    margin-bottom: 20px;
  }
  footer .footer .footer_left .nav li .title {
    font-size: 16px !important;
  }
  footer .footer .footer_left .nav li .subNav {
    font-size: 14px !important;
  }
  footer span,
  footer p,
  footer a {
    font-size: 16px !important;
  }
  .footer {
    flex-direction: column;
  }
  .footer .footer_left {
    width: 100% !important;
  }
  .newProduct_mask .selected_product {
    width: 80%;
  }
  .videoMask .videoBox {
    width: 300px;
    height: 300px;
  }
  .menu_mask {
    height: calc(100% - 60px);
    top: 60px;
  }
}

@media (max-width: 768px) {
  .videoBox .video_right,
  .who_section .who_img {
    height: 220px !important;
  }
}