.advertising {
  width: 100%;
  height: 1055px;
  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%;
  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%;
  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 .content {
  margin-top: 80px;
  height: 540px;
  display: flex;
  align-items: flex-start;
}
.main .therapy .content .item {
  flex-shrink: 0;
  height: 100%;
}
.main .therapy .content .item.hover .cover {
  display: none;
}
.main .therapy .content .item.hover .active {
  display: block;
}
.main .therapy .content .item:first-child .cover {
  border-left: 0;
}
.main .therapy .content .item .cover {
  position: relative;
  width: 180px;
  height: 100%;
  box-sizing: border-box;
  border-left: 1px solid rgba(243, 146, 13, 0.2);
  background: linear-gradient(180deg, transparent 50%, rgba(243, 146, 13, 0.3) 100%);
  overflow: hidden;
}
.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%;
  transform: translateX(-50%);
}
.main .therapy .content .item .active {
  position: relative;
  display: none;
  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: flex;
  flex-direction: column;
  justify-content: 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%;
  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;
  transition: all 0.4s;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}
.main .application .content .item .active .info .num {
  font-size: 50px;
  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: flex;
  justify-content: 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 {
  transform: scale(1.06);
}
.main .distribution .content img {
  display: block;
  width: 100%;
}
.main .distribution .content .section {
  display: flex;
  justify-content: space-between;
  margin-top: 80px;
}
.main .distribution .content .section .line {
  width: 1px;
  height: 12px;
  background: #b2b2b2;
  transform: translateY(52px);
}
.main .distribution .content .section .item {
  display: flex;
  justify-content: center;
  align-items: center;
  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 {
  box-sizing: border-box;
}
.main .contact .content .form-container textarea {
  display: block;
  width: 526px;
  height: 344px;
  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;
  transition: all 0.4s;
}
.main .contact .content .form-container .submit:hover {
  background: #e78d0d;
}