@media screen and (min-width: 1180px) {
  .banner {
    height: 640px;
    width: 100%;
    background: url('../img/product/banner.png') no-repeat center center;
    position: relative;
  }
  .banner .header {
    width: 100%;
    height: 60px;
    position: fixed;
    z-index: 10;
    background-color: rgba(0, 0, 0, 0);
  }
  .banner .header .w {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .banner .header .w .left {
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .banner .header .w .left .logo {
    width: 130px;
    height: 45px;
    margin-right: 10px;
  }
  .banner .header .w .left .logo img {
    width: 100%;
    height: 100%;
  }
  .banner .header .w .left .nav_box ul li {
    cursor: pointer;
    width: 100px;
    height: 25px;
    text-align: center;
    float: left;
    font-size: 13px;
    color: #ffffff;
  }
  .banner .header .w .left .nav_box ul li a {
    width: 60px;
    height: 30px;
    line-height: 20px;
    border-bottom: 2px solid transparent;
    display: block;
    margin: 0 auto;
    color: #ffffff;
  }
  .banner .header .w .left .nav_box ul li a:hover {
    color: #016DFE;
  }
  .banner .header .w .left .nav_box ul .selected a {
    border-bottom: 2px solid #016DFE;
    color: #016DFE;
  }
  .banner .header .w .right a {
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .banner .header .w .right a img {
    width: 20px;
    height: 20px;
  }
  .banner .header .w .right a span {
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    padding: 0 2px;
  }
  .banner .content .w {
    padding: 0 50px;
  }
  .banner .content .w .text {
    padding-top: 240px;
  }
  .banner .content .w .text h1 {
    font-size: 48px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 20px;
  }
  .banner .content .w .text p {
    font-size: 16px;
    font-weight: 400;
    color: #fff;
    line-height: 28px;
  }
  .banner .content .w a {
    margin-top: 20px;
    display: flex;
    align-items: center;
  }
  .banner .content .w a img {
    width: 27px;
    height: 27px;
  }
  .banner .content .w a span {
    font-size: 28px;
    font-weight: 600;
    color: #fff;
    padding: 0 2px;
  }
  .content-1 .w .title {
    text-align: center;
    padding-top: 80px;
  }
  .content-1 .w .title h2 {
    font-size: 36px;
    color: #000;
    font-weight: 600;
    margin-bottom: 20px;
  }
  .content-1 .w .title p {
    font-size: 18px;
    font-weight: 400;
    color: #888;
  }
  .content-1 .w .list {
    display: flex;
    justify-content: center;
    padding-bottom: 40px;
  }
  .content-1 .w .list .list-item {
    width: 25%;
    display: flex;
    height: 280px;
  }
  .content-1 .w .list .list-item .left {
    display: flex;
    align-items: center;
    padding-bottom: 55px;
  }
  .content-1 .w .list .list-item .left img {
    width: 25px;
    height: 44px;
  }
  .content-1 .w .list .list-item .right {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-left: 20px;
  }
  .content-1 .w .list .list-item .right h1 {
    font-size: 90px;
    font-weight: 600;
    color: #000;
    height: 135px;
  }
  .content-1 .w .list .list-item .right h4 {
    font-size: 20px;
    font-weight: 600;
    color: #000;
    line-height: 30px;
  }
  .content-1 .w .list .list-item .right p {
    font-size: 15px;
    font-weight: 400;
    color: #888;
    line-height: 25px;
  }
  .content-2 {
    height: 600px;
    background-color: #000;
  }
  .content-2 .w .title {
    padding: 80px 0;
  }
  .content-2 .w .title h2 {
    font-size: 28px;
    font-weight: 600;
    color: #fff;
    line-height: 40px;
    text-align: center;
    position: relative;
  }
  .content-2 .w .title h2::before {
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    content: '';
    width: 80px;
    height: 5px;
    background-color: #0E9FFF;
  }
  .content-2 .w .swiper {
    width: 1000px;
    height: 280px;
    margin: 0 auto;
  }
  .content-2 .w .swiper-container {
    margin-left: auto;
    margin-right: auto;
    padding: 0 0 50px 0;
  }
  .content-2 .w .swiper-slide {
    background: #fff;
    width: 1000px;
    height: 280px;
    display: flex;
  }
  .content-2 .w .swiper-slide .left {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-left: 80px;
  }
  .content-2 .w .swiper-slide .left h4 {
    font-size: 24px;
    font-weight: 600;
    color: #000;
    margin-bottom: 30px;
  }
  .content-2 .w .swiper-slide .left p {
    font-size: 18px;
    font-weight: 400;
    color: #3f3f3f;
    text-align: left;
  }
  .content-2 .w .swiper-slide .right {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 80px;
  }
  .content-2 .w .swiper-slide .right img {
    width: 100px;
    height: 107px;
  }
  .content-2 .w .swiper-pagination-bullet {
    width: 30px;
    height: 4px;
    border-radius: 2px;
    background-color: #fff;
    opacity: 1;
  }
  .content-2 .w .swiper-pagination-bullet-active {
    background-color: #0E9FFF;
  }
  .content-2 .w .swiper-button-next,
  .content-2 .w .swiper-button-prev {
    top: calc(50% - 25px);
  }
  .content-3 .w .title {
    text-align: center;
    padding: 80px 0 40px 0;
  }
  .content-3 .w .title h1 {
    font-size: 36px;
    font-weight: 600;
    color: #000;
    margin-bottom: 20px;
  }
  .content-3 .w .title p {
    font-size: 18px ;
    font-weight: 400;
    color: #888;
  }
  .content-3 .w .img {
    display: flex;
    flex-wrap: wrap;
  }
  .content-3 .w .img .img-item {
    width: 280px;
    height: 200px;
    position: relative;
    margin-right: 20px;
    margin-bottom: 50px;
  }
  .content-3 .w .img .img-item:nth-child(4n) {
    margin-right: 0;
  }
  .content-3 .w .img .img-item img {
    display: block;
    width: 100%;
    height: 100%;
    cursor: pointer;
  }
  .content-3 .w .img .img-item p {
    text-align: center;
    position: absolute;
    left: 0;
    bottom: 0;
    font-size: 18px;
    font-weight: 400;
    color: #fff;
    line-height: 30px;
    width: 100%;
    background: rgba(0, 0, 0, 0.5);
  }
  .content-4 {
    text-align: center;
    padding: 100px 0 150px 0;
  }
  .content-4 h2 {
    font-size: 31px;
    font-weight: 600;
    color: #000;
    margin-bottom: 35px;
  }
  .content-4 a {
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .content-4 a img {
    width: 32px;
    height: 32px;
  }
  .content-4 a span {
    font-size: 40px;
    font-weight: 600;
    color: #000;
    padding: 0 2px;
  }
  .footer {
    background: #3F3F3F;
  }
  .footer .w {
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .footer .w p {
    font-size: 12px;
    font-weight: 400;
    color: #fff;
  }
  .footer .w p a {
    color: #fff;
  }
  .hide-lg {
    display: none !important;
  }
}
@media screen and (max-width: 1180px) {
  .banner {
    height: 375px;
    width: 100%;
    background: url('../img/product/banner.png') no-repeat center center;
    position: relative;
  }
  .banner .header {
    width: 100%;
    height: 60px;
    position: fixed;
    z-index: 10;
    background-color: rgba(0, 0, 0, 0);
  }
  .banner .header .w {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .banner .header .w .left {
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .banner .header .w .left .logo {
    width: 68px;
    height: 30px;
    margin-right: 10px;
  }
  .banner .header .w .left .logo img {
    width: 100%;
    height: 100%;
  }
  .banner .header .w .right .show-nav {
    padding: 5px;
  }
  .banner .header .w .right .show-nav img {
    width: 18px;
    height: 18px;
  }
  .banner .content .w .text {
    padding-top: 150px;
    text-align: center;
  }
  .banner .content .w .text h1 {
    font-size: 24px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 20px;
  }
  .banner .content .w .text p {
    font-size: 12px;
    font-weight: 400;
    color: #fff;
    line-height: 18px;
  }
  .banner .content .w a {
    margin: 20px auto;
    width: 150px;
    height: 45px;
    border-radius: 22.5px;
    background: #F93A52;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .banner .content .w a span {
    color: #fff;
    font-size: 18px;
    font-weight: 600;
  }
  .banner .down-nav {
    z-index: 999;
    width: 100%;
    height: 200px;
    position: fixed;
    top: 0;
    left: 50%;
    transform: translate(-50%);
    background: #000000;
    padding: 0 15px;
  }
  .banner .down-nav .top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
  }
  .banner .down-nav .top .logo {
    width: 68px;
    height: 30px;
  }
  .banner .down-nav .top .hide-nav {
    width: 17px;
    height: 17px;
  }
  .banner .down-nav .top img {
    display: block;
    width: 100%;
    height: 100%;
  }
  .banner .down-nav .nav-list a {
    display: flex;
    align-items: center;
    height: 45px;
    border-top: 1px solid #666;
    padding: 2px;
  }
  .banner .down-nav .nav-list a span {
    color: #fff;
    font-size: 12px;
    font-weight: 400;
  }
  .banner .down-nav .nav-list a span.selected {
    font-weight: 600;
  }
  .content-1 .w .title {
    text-align: center;
    padding: 40px 40px 0  40px;
  }
  .content-1 .w .title h2 {
    font-size: 18px;
    color: #000;
    font-weight: 600;
    margin-bottom: 10px;
  }
  .content-1 .w .title p {
    font-size: 12px;
    font-weight: 400;
    color: #888;
  }
  .content-1 .w .list {
    padding-bottom: 40px;
  }
  .content-1 .w .list .list-item {
    width: 100%;
    height: 110px;
  }
  .content-1 .w .list .list-item .left {
    display: flex;
    justify-content: center;
    padding-bottom: 15px;
    height: 35px;
  }
  .content-1 .w .list .list-item .left img {
    width: 13px;
    height: 22px;
    transform: rotate(90deg);
  }
  .content-1 .w .list .list-item .right {
    width: 100%;
    margin: 0 auto;
    display: flex;
    padding-left: 75px;
  }
  .content-1 .w .list .list-item .right h1 {
    font-size: 45px;
    font-weight: 600;
    color: #000;
    height: 60px;
    line-height: 60px;
  }
  .content-1 .w .list .list-item .right .text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-left: 25px;
  }
  .content-1 .w .list .list-item .right .text h4 {
    font-size: 20px;
    font-weight: 600;
    color: #000;
    line-height: 30px;
  }
  .content-1 .w .list .list-item .right .text p {
    font-size: 15px;
    font-weight: 400;
    color: #888;
    line-height: 25px;
  }
  .content-2 {
    background-color: #000;
    padding-bottom: 150px;
  }
  .content-2 .w .title {
    padding: 35px 0 60px 0;
  }
  .content-2 .w .title h2 {
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    line-height: 20px;
    text-align: center;
    position: relative;
  }
  .content-2 .w .title h2::before {
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    content: '';
    width: 40px;
    height: 4px;
    background-color: #0E9FFF;
  }
  .content-2 .w .swiper {
    width: 345px;
    height: 210px;
    margin: 0 auto;
  }
  .content-2 .w .swiper-container {
    margin-left: auto;
    margin-right: auto;
    padding: 0 0 50px 0;
  }
  .content-2 .w .swiper-slide {
    background: #fff;
    width: 1000px;
    height: 280px;
    position: relative;
  }
  .content-2 .w .swiper-slide .left {
    padding: 120px 20px 20px 20px;
  }
  .content-2 .w .swiper-slide .left h4 {
    font-size: 14px;
    font-weight: 600;
    line-height: 20px;
    color: #000;
    margin-bottom: 14px;
  }
  .content-2 .w .swiper-slide .left p {
    font-size: 12px;
    font-weight: 400;
    color: #3f3f3f;
    line-height: 18px;
    text-align: left;
  }
  .content-2 .w .swiper-slide .right {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%);
    padding: 30px 0;
  }
  .content-2 .w .swiper-slide .right img {
    width: 50px;
    height: 54px;
  }
  .content-2 .w .swiper-pagination-bullet {
    width: 15px;
    height: 4px;
    border-radius: 0;
    background-color: #fff;
    opacity: 1;
  }
  .content-2 .w .swiper-pagination-bullet-active {
    background-color: #0E9FFF;
  }
  .content-2 .w .swiper-button-next,
  .content-2 .w .swiper-button-prev {
    top: calc(50% - 25px);
  }
  .content-3 .w .title {
    text-align: center;
    padding: 40px 40px 0  40px;
  }
  .content-3 .w .title h2 {
    font-size: 18px;
    color: #000;
    font-weight: 600;
    margin-bottom: 10px;
  }
  .content-3 .w .title p {
    font-size: 12px;
    font-weight: 400;
    color: #888;
  }
  .content-3 .w .img {
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    padding: 30px 0;
  }
  .content-3 .w .img .img-item {
    width: 165px;
    height: 118px;
    position: relative;
    margin-right: 15px;
    margin-bottom: 20px;
  }
  .content-3 .w .img .img-item:nth-child(2n) {
    margin-right: 0;
  }
  .content-3 .w .img .img-item img {
    display: block;
    width: 100%;
    height: 100%;
    cursor: pointer;
  }
  .content-3 .w .img .img-item p {
    text-align: center;
    position: absolute;
    left: 0;
    bottom: 0;
    font-size: 12px;
    font-weight: 400;
    color: #fff;
    line-height: 20px;
    width: 100%;
    background: rgba(0, 0, 0, 0.5);
  }
  .content-4 {
    text-align: center;
    padding: 30px 0;
  }
  .content-4 h2 {
    font-size: 16px;
    font-weight: 600;
    color: #000;
    margin-bottom: 18px;
  }
  .content-4 a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 290px;
    height: 50px;
    background: #F93A52;
    border-radius: 25px;
    margin: 0 auto;
  }
  .content-4 a img {
    width: 16px;
    height: 16px;
    margin-right: 5px;
  }
  .content-4 a span {
    font-size: 20px;
    font-weight: 600;
    color: #fff;
  }
  .footer-nav .w .nav-list {
    padding: 45px 0;
  }
  .footer-nav .w .nav-list a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-right: 10px;
    width: 100%;
    height: 45px;
    border-bottom: 1px solid #ccc;
  }
  .footer-nav .w .nav-list a:first-child {
    border-top: 1px solid #ccc;
  }
  .footer-nav .w .nav-list a span {
    font-size: 12px;
    font-weight: 600;
    color: #333;
  }
  .footer-nav .w .nav-list a img {
    display: block;
    width: 7px;
    height: 12px;
  }
  .footer {
    background: #3F3F3F;
  }
  .footer .w {
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
  }
  .footer .w p {
    font-size: 12px;
    font-weight: 400;
    color: #fff;
  }
  .footer .w p a {
    display: block;
    color: #fff;
  }
  .hide-sm {
    display: none !important;
  }
}
.down-nav {
  display: none;
}