@media screen and (min-width: 768px) {
  .advertising {
    width: 100%;
    height: 1055px;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    background: #f2f2f2;
    overflow: hidden;
    background: url(/img/brand-ross-ad.jpg) no-repeat center;
    background-size: cover;
  }
  .advertising .video-container {
    position: relative;
    width: 1200px;
    height: 570px;
    margin: 0 auto;
    margin-top: 485px;
    background: pink;
  }
  .advertising .video-container .play {
    position: absolute;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    z-index: 2;
    bottom: 155px;
    left: 50%;
    -webkit-transform: translateX(-50%);
    transform: translateX(-50%);
    cursor: pointer;
  }
  .advertising .video-container video {
    display: block;
    width: 100%;
    height: 100%;
  }

  .main .wrapper {
    margin-top: 120px;
  }
  .main .wrapper .title {
    font-size: 34px;
    text-align: center;
  }
  .main .wrapper .content {
    margin-top: 80px;
  }
  .main .about .content {
    height: 540px;
  }
  .main .about .content .swiper {
    width: 720px;
    height: 100%;
    position: relative;
  }
  .main .about .content .swiper .swiper-prev,
.main .about .content .swiper .swiper-next {
    position: absolute;
    left: 0;
    top: 50%;
    -webkit-transform: translateY(-50%);
    transform: translateY(-50%);
    width: 48px;
    height: 72px;
    background-color: rgba(55, 55, 55, 0.3) !important;
    z-index: 5;
    cursor: pointer;
    background: url(/img/icon-arrow-left.png) no-repeat center;
  }
  .main .about .content .swiper .swiper-next {
    left: unset;
    right: 0;
    background: url(/img/icon-arrow-right.png) no-repeat center;
  }
  .main .about .content .swiper img {
    width: 100%;
    height: 540px;
  }
  .main .about .content .section {
    width: 480px;
    height: 540px;
    background: url(/img/icon-comma-01.png), url(/img/icon-comma-02.png);
    background-color: #f3920d;
    background-repeat: no-repeat;
    background-position: 48px 48px, 341px 410px;
  }
  .main .about .content .section .item {
    width: 390px;
    margin: 0 auto;
    margin-top: 73px;
    display: none;
  }
  .main .about .content .section .item .num {
    font-size: 32px;
    color: #fff;
    text-align: center;
  }
  .main .about .content .section .item .line {
    width: 1px;
    height: 24px;
    margin: 25px auto 40px;
    background: #fff;
  }
  .main .about .content .section .item .desc {
    font-size: 16px;
    color: #fff;
    line-height: 40px;
  }
  .main .therapy {
    background: url(/img/about-bg.png) no-repeat top center;
    padding-top: 80px;
  }
  .main .therapy .content {
    margin-top: 80px;
    height: 540px;
    background-color: #fff;
  }
  .main .therapy .content .item {
    float: left;
    width: 180px;
    height: 100%;
    position: relative;
    overflow: hidden;
  }
  .main .therapy .content .item.hover {
    width: 480px;
  }
  .main .therapy .content .item.hover .cover {
    opacity: 0;
  }
  .main .therapy .content .item.hover .active {
    opacity: 1;
  }
  .main .therapy .content .item:first-child .cover {
    border-left: 0;
  }
  .main .therapy .content .item .cover,
.main .therapy .content .item .active {
    -webkit-transition: opacity 0.4s;
    transition: opacity 0.4s;
  }
  .main .therapy .content .item .cover {
    position: absolute;
    left: 50%;
    top: 0;
    -webkit-transform: translateX(-50%);
    transform: translateX(-50%);
    width: 100%;
    height: 100%;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    border-left: 1px solid rgba(243, 146, 13, 0.2);
    background: -webkit-gradient(linear, left top, left bottom, color-stop(50%, transparent), to(rgba(243, 146, 13, 0.3)));
    background: linear-gradient(180deg, transparent 50%, rgba(243, 146, 13, 0.3) 100%);
    overflow: hidden;
    opacity: 1;
  }
  .main .therapy .content .item .cover .tip {
    font-size: 16px;
    text-align: center;
    margin-top: 57px;
    margin-bottom: 40px;
    font-weight: bold;
  }
  .main .therapy .content .item .cover .line {
    width: 24px;
    height: 2px;
    background: #f3920d;
    margin: 0 auto;
  }
  .main .therapy .content .item .cover img {
    position: absolute;
    width: 128px;
    height: 128px;
    bottom: 44px;
    left: 50%;
    -webkit-transform: translateX(-50%);
    transform: translateX(-50%);
  }
  .main .therapy .content .item .active {
    position: absolute;
    left: 50%;
    top: 0;
    -webkit-transform: translateX(-50%);
    transform: translateX(-50%);
    opacity: 0;
    width: 480px;
    height: 100%;
    text-align: center;
    color: #fff;
  }
  .main .therapy .content .item .active img {
    width: 100%;
    height: 100%;
  }
  .main .therapy .content .item .active .info {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
  }
  .main .therapy .content .item .active .info .tip {
    font-size: 24px;
    margin-bottom: 10px;
  }
  .main .therapy .content .item .active .info .subtip {
    font-size: 16px;
    margin-bottom: 60px;
  }
  .main .therapy .content .item .active .info .section {
    width: 160px;
    margin: 0 auto;
    border: 1px solid #fff;
    padding: 36px 0;
  }
  .main .therapy .content .item .active .info .section dl {
    padding: 0;
  }
  .main .therapy .content .item .active .info .section dl dt {
    margin-bottom: 24px;
  }
  .main .therapy .content .item .active .info .section dl dd {
    margin: 0;
    margin-top: 10px;
  }
  .main .application .content .item {
    position: relative;
    float: left;
    width: 390px;
    height: 390px;
    margin-right: 15px;
    margin-top: 15px;
    overflow: hidden;
  }
  .main .application .content .item img {
    display: block;
    width: 100%;
    height: 100%;
    -webkit-transition: all 0.4s;
    transition: all 0.4s;
  }
  .main .application .content .item:nth-child(-n+3) {
    margin-top: 0;
  }
  .main .application .content .item:nth-child(5), .main .application .content .item:nth-child(6) {
    width: 795px;
  }
  .main .application .content .item:nth-child(3), .main .application .content .item:nth-child(5), .main .application .content .item:nth-child(7) {
    margin-right: 0;
  }
  .main .application .content .item .active {
    opacity: 0;
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.39);
    z-index: 1;
    top: 0;
    left: 0;
    -webkit-transition: all 0.4s;
    transition: all 0.4s;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
  }
  .main .application .content .item .active .info .num {
    font-size: 50px;
    background: -webkit-gradient(linear, left top, left bottom, from(#fff), to(transparent));
    background: linear-gradient(to bottom, #fff, transparent);
    -webkit-background-clip: text;
    color: transparent;
    text-align: center;
  }
  .main .application .content .item .active .info .tip {
    font-size: 24px;
    color: #fff;
    text-align: center;
  }
  .main .application .content .item .active .info .line {
    width: 28px;
    height: 2px;
    background: #fff;
    margin: 24px auto;
  }
  .main .application .content .item .active .info .link {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    width: 160px;
    height: 48px;
    border: 1px solid #fff;
    font-size: 16px;
    color: #fff;
    margin-top: 52px;
    cursor: pointer;
  }
  .main .application .content .item:hover .active {
    opacity: 1;
  }
  .main .application .content .item:hover img {
    -webkit-transform: scale(1.06);
    transform: scale(1.06);
  }
  .main .distribution .content img {
    display: block;
    width: 100%;
  }
  .main .distribution .content .section {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    margin-top: 80px;
  }
  .main .distribution .content .section .line {
    width: 1px;
    height: 12px;
    background: #b2b2b2;
    -webkit-transform: translateY(52px);
    transform: translateY(52px);
  }
  .main .distribution .content .section .item {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
  }
  .main .distribution .content .section .item .row:first-child {
    padding-left: 36px;
    background: url(/img/icon-star.png) no-repeat left center;
    line-height: 37px;
    font-size: 28px;
  }
  .main .distribution .content .section .item .row.company {
    background-image: url(/img/icon-company.png);
  }
  .main .distribution .content .section .item .row.doctor {
    background-image: url(/img/icon-doctor.png);
  }
  .main .distribution .content .section .item .row.heart {
    background-image: url(/img/icon-heart.png);
  }
  .main .distribution .content .section .item .row:last-child {
    font-size: 14px;
    color: #999;
    margin-top: 12px;
  }
  .main .contact .content .cover {
    width: 626px;
    height: 418px;
  }
  .main .contact .content .cover img {
    display: block;
    width: 100%;
    height: 100%;
  }
  .main .contact .content .form-container {
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
  }
  .main .contact .content .form-container textarea {
    display: block;
    width: 526px;
    height: 344px;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    padding: 12px;
    line-height: 26px;
    font-size: 16px;
    border-color: #dedede;
  }
  .main .contact .content .form-container .submit {
    font-size: 16px;
    color: #fff;
    height: 48px;
    background: #f3920d;
    text-align: center;
    line-height: 48px;
    margin-top: 26px;
    cursor: pointer;
    -webkit-transition: all 0.4s;
    transition: all 0.4s;
  }
  .main .contact .content .form-container .submit:hover {
    background: #e78d0d;
  }
}
@media screen and (max-width: 768px) {
  .advertising {
    width: 100%;
    height: 5.45rem;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    background: #f2f2f2;
    overflow: hidden;
    background: url(/img/brand-ross-ad.jpg) no-repeat center;
    background-size: cover;
    background-size: auto 5.45rem;
  }
  .advertising .video-container {
    position: relative;
    width: 6.86rem;
    height: 3.26rem;
    margin: 0 auto;
    margin-top: 2.8rem;
  }
  .advertising .video-container .play {
    position: absolute;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    z-index: 2;
    bottom: 155px;
    left: 50%;
    -webkit-transform: translateX(-50%);
    transform: translateX(-50%);
    cursor: pointer;
  }
  .advertising .video-container video {
    display: block;
    width: 6.86rem;
    height: 3.26rem;
  }

  .main .wrapper {
    margin-top: 1.2rem;
  }
  .main .wrapper .title {
    font-size: 0.34rem;
    text-align: center;
  }
  .main .wrapper .content {
    margin-top: 0.4rem;
  }
  .main .about .content .swiper {
    display: none;
  }
  .main .about .content .section {
    padding-bottom: 0.16rem;
    float: unset !important;
  }
  .main .about .content .section::-webkit-scrollbar {
    width: 2px;
    height: 2px;
    background-color: #f5f5f5;
  }
  .main .about .content .section::-webkit-scrollbar-thumb {
    border-radius: 2px;
    background-color: #cccecf;
  }
  .main .about .content .section .item {
    display: inline-block !important;
    width: 5.83rem;
    height: 8.32rem;
    margin-left: 0.32rem;
    background-color: #f3920d;
    vertical-align: top;
  }
  .main .about .content .section .item:last-child {
    margin-right: 0.32rem;
  }
  .main .about .content .section .item .cover {
    width: 5.83rem;
    height: 4.37rem;
  }
  .main .about .content .section .item .cover img {
    display: block;
    width: 5.83rem;
    height: 4.37rem;
  }
  .main .about .content .section .item .num {
    font-size: 0.4rem;
    color: #fff;
    text-align: center;
    margin: 0.4rem 0 0.32rem;
  }
  .main .about .content .section .item .desc {
    font-size: 0.24rem;
    color: #fff;
    line-height: 0.4rem;
    padding: 0 0.4rem;
    white-space: initial;
  }
  .main .therapy {
    background: #f7f7f7;
    background-size: 7.5rem auto;
    padding-top: 0.8rem;
  }
  .main .therapy .content {
    margin-top: 0.8rem;
    padding-bottom: 0.63rem;
  }
  .main .therapy .content::-webkit-scrollbar {
    width: 2px;
    height: 2px;
    background-color: #f5f5f5;
  }
  .main .therapy .content::-webkit-scrollbar-thumb {
    border-radius: 2px;
    background-color: #cccecf;
  }
  .main .therapy .content .item {
    display: inline-block;
    width: 4.8rem;
    height: 100%;
    position: relative;
    margin-left: 0.32rem;
  }
  .main .therapy .content .item:last-child {
    margin-right: 0.32rem;
  }
  .main .therapy .content .item .cover {
    display: none;
  }
  .main .therapy .content .item .active {
    width: 4.8rem;
    height: 100%;
  }
  .main .therapy .content .item .active img {
    width: 100%;
    height: 100%;
  }
  .main .therapy .content .item .active .info {
    width: 100%;
    height: 100%;
  }
  .main .therapy .content .item .active .info .tip {
    font-size: 0.3rem;
    margin-bottom: 0.12rem;
    margin-top: 0.32rem;
    font-weight: bold;
  }
  .main .therapy .content .item .active .info .subtip {
    font-size: 0.24rem;
    color: #505050;
  }
  .main .therapy .content .item .active .info .section {
    margin-top: 0.4rem;
  }
  .main .therapy .content .item .active .info .section dl {
    padding: 0;
    margin: 0;
  }
  .main .therapy .content .item .active .info .section dl dt {
    font-size: 0.24rem;
    font-weight: bold;
    margin-bottom: 0.24rem;
  }
  .main .therapy .content .item .active .info .section dl dd {
    font-size: 0.24rem;
    margin: 0;
    margin-top: 0.16rem;
    color: #505050;
  }
  .main .application .content {
    padding-left: 0.32rem;
  }
  .main .application .content .item {
    position: relative;
    float: left;
    width: 2.23rem;
    height: 2.23rem;
    margin-right: 0.08rem;
    margin-top: 0.08rem;
    overflow: hidden;
  }
  .main .application .content .item img {
    display: block;
    width: 100%;
    height: 100%;
  }
  .main .application .content .item:nth-child(-n+3) {
    margin-top: 0;
  }
  .main .application .content .item:nth-child(5), .main .application .content .item:nth-child(6) {
    width: 4.55rem;
  }
  .main .application .content .item:nth-child(3), .main .application .content .item:nth-child(5), .main .application .content .item:nth-child(7) {
    margin-right: 0;
  }
  .main .application .content .item .active {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
  }
  .main .application .content .item .active .info .num {
    display: none;
  }
  .main .application .content .item .active .info .tip {
    position: absolute;
    left: 0;
    bottom: 0;
    font-size: 0.24rem;
    color: #fff;
    text-align: center;
    background: rgba(0, 0, 0, 0.39);
    z-index: 1;
    width: 100%;
    text-align: center;
    line-height: 0.48rem;
  }
  .main .application .content .item .active .info .link {
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    z-index: 2;
    opacity: 0;
  }
  .main .distribution .content img {
    display: block;
    width: 100%;
  }
  .main .distribution .content .section {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    margin-top: 0.6rem;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    padding: 0 0.32rem;
  }
  .main .distribution .content .section .item {
    width: 50%;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
  }
  .main .distribution .content .section .item:nth-child(1), .main .distribution .content .section .item:nth-child(3) {
    padding-bottom: 0.35rem;
    border-bottom: 0.01rem solid #dedede;
  }
  .main .distribution .content .section .item:nth-child(1), .main .distribution .content .section .item:nth-child(5) {
    border-right: 0.01rem solid #dedede;
  }
  .main .distribution .content .section .item:nth-child(5), .main .distribution .content .section .item:nth-child(7) {
    padding-top: 0.35rem;
  }
  .main .distribution .content .section .item .row:first-child {
    padding-left: 0.48rem;
    background: url(/img/icon-star.png) no-repeat left center;
    background-size: 0.4rem;
    line-height: 0.4rem;
    font-size: 0.26rem;
  }
  .main .distribution .content .section .item .row.company {
    background-image: url(/img/icon-company.png);
  }
  .main .distribution .content .section .item .row.doctor {
    background-image: url(/img/icon-doctor.png);
  }
  .main .distribution .content .section .item .row.heart {
    background-image: url(/img/icon-heart.png);
  }
  .main .distribution .content .section .item .row:last-child {
    font-size: 0.2rem;
    color: #999;
    margin-top: 0.16rem;
  }
  .main .contact .content {
    padding: 0 0.32rem;
  }
  .main .contact .content .cover {
    width: 100%;
    height: 4.18rem;
    float: unset !important;
  }
  .main .contact .content .cover img {
    display: block;
    width: 100%;
    height: 100%;
  }
  .main .contact .content .form-container {
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    float: unset !important;
  }
  .main .contact .content .form-container textarea {
    display: block;
    width: 100%;
    height: 2.4rem;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    padding: 0.24rem;
    line-height: 0.4rem;
    font-size: 0.26rem;
    border-color: #dedede;
    margin-top: 0.24rem;
  }
  .main .contact .content .form-container .submit {
    font-size: 0.3rem;
    color: #fff;
    height: 0.9rem;
    background: #f3920d;
    text-align: center;
    line-height: 0.9rem;
    margin-top: 0.4rem;
  }
  .main .contact .content .form-container .submit:hover {
    background: #e78d0d;
  }
}