@media screen and (min-width: 768px) {
  .main {
    .about {
      .cover {
        img {
          display: block;
          width: 470px;
          height: 480px;
        }
      }

      .info {
        width: 660px;
        padding-top: 65px;

        .name {
          font-size: 50px;
          color: #f3920d;
          font-weight: bold;
        }
        .subname {
          font-size: 30px;
          margin-top: 15px;
        }
        .line {
          width: 36px;
          height: 7px;
          background: #f3920d;
          margin: 20px 0 50px;
        }
        .description {
          font-size: 20px;
          text-align: justify;
          word-break: break-all;
          font-weight: lighter;
          line-height: 36px;
        }
      }
    }

    .therapy {
      .section {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -webkit-box-pack: justify;
        -ms-flex-pack: justify;
        justify-content: space-between;
        -webkit-box-align: center;
        -ms-flex-align: center;
        align-items: center;
        position: relative;
        background: #eeeeee;
        height: 400px;
        margin-top: 44px;
        -webkit-box-sizing: border-box;
        box-sizing: border-box;
        padding: 0 20px;

        .cover {
          -ms-flex-negative: 0;
          flex-shrink: 0;
          img {
            display: block;
            width: 450px;
            height: 360px;
          }
        }

        .info {
          -ms-flex-negative: 0;
          flex-shrink: 0;
          -webkit-box-flex: 1;
          -ms-flex: 1;
          flex: 1;
          -webkit-box-sizing: border-box;
          box-sizing: border-box;
          margin-left: 40px;

          .name {
            font-size: 36px;
            font-weight: bold;
            color: #f3920d;
          }

          .description {
            font-size: 26px;
            color: #434343;
            line-height: 36px;
            font-weight: lighter;
            text-align: justify;
            word-break: break-all;
            padding-right: 20px;
            margin-top: 36px;
          }
        }

        &:nth-child(2n-1) {
          .link {
            right: 40px;
            bottom: 20px;
          }
        }

        &:nth-child(2n) {
          .link {
            left: 60px;
            bottom: 20px;
          }
        }

        .link {
          position: absolute;
          display: block;
          width: 164px;
          height: 50px;
          line-height: 50px;
          text-align: center;
          -webkit-box-sizing: border-box;
          box-sizing: border-box;
          padding-right: 30px;
          background: url('/img/binary-icon-link.png') no-repeat;
          background-position: 144px center;
          background-color: #000000;
          font-size: 25px;
          color: #f3920d;
          cursor: pointer;
        }
      }
    }

    .application {
      .content {
        .item {
          position: relative;
          float: left;
          height: 340px;
          width: 390px;
          margin-right: 15px;
          margin-bottom: 15px;
          -webkit-box-sizing: border-box;
          box-sizing: border-box;
          overflow: hidden;

          .cover-bg {
            width: 100%;
            height: 100%;
            opacity: 1;
            -webkit-transition: all 0.4s;
            transition: all 0.4s;
            background: #f3920d;
          }

          img {
            width: 100%;
            height: 100%;
            opacity: 1;
            -webkit-transition: all 0.4s;
            transition: all 0.4s;
          }

          &.no-mb {
            margin-bottom: 0;
          }

          &.no-mr {
            margin-right: 0;
          }

          &:nth-child(1),
          &:nth-child(7) {
            width: 795px;
          }

          &:hover {
            img {
              -webkit-transform: scale(1.2);
              transform: scale(1.2);
            }

            .cover {
              opacity: 1;
            }
          }

          .cover {
            opacity: 0;
            position: absolute;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            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;
            background: rgba(0, 0, 0, 0.2);
            -webkit-transition: opacity 0.4s;
            transition: opacity 0.4s;

            .title {
              color: #fff;
              font-size: 38px;
            }

            .subtitle {
              font-size: 29px;
              color: #fff;
              font-weight: lighter;
              margin-top: 10px;
            }
          }
        }
      }
    }

    .device {
      .content {
        position: relative;

        .swiper-container {
          width: 1100px;
          margin: 0 auto;

          img {
            display: block;
            width: 100%;
          }
        }

        .swiper-prev,
        .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, 0.6) !important;
          z-index: 5;
          cursor: pointer;
          background: url(/img/icon-arrow-left.png) no-repeat center;
        }

        .swiper-next {
          left: unset;
          right: 0;
          background: url(/img/icon-arrow-right.png) no-repeat center;
        }
      }
    }
  }
}

@media screen and (max-width: 768px) {
  .main {
    .about {
      .content {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -webkit-box-orient: vertical;
        -webkit-box-direction: reverse;
        -ms-flex-direction: column-reverse;
        flex-direction: column-reverse;
        -webkit-box-align: center;
        -ms-flex-align: center;
        align-items: center;
        .cover {
          float: unset !important;
          margin-top: 0.4rem;
          img {
            display: block;
            width: 5.64rem;
            height: 5.57rem;
            margin: 0 auto;
          }
        }

        .info {
          float: unset !important;
          width: 6.5rem;
          text-align: center;

          .name {
            font-size: 0.34rem;
            color: #f3920d;
          }
          .subname {
            font-size: 0.26rem;
            margin-top: 0.16rem;
          }
          .line {
            width: 0.4rem;
            height: 0.06rem;
            background: #f3920d;
            margin: 0.32rem auto;
          }
          .description {
            font-size: 0.26rem;
            text-align: justify;
            word-break: break-all;
            // font-weight: lighter;
            line-height: 0.48rem;
            color: #333333;
          }
        }
      }
    }

    .therapy {
      .section {
        position: relative;
        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-align: center;
        -ms-flex-align: center;
        align-items: center;
        -webkit-box-sizing: border-box;
        box-sizing: border-box;
        width: 6.86rem;
        margin: 0 auto;
        background: #eeeeee;
        margin-top: 0.32rem;
        padding: 0.4rem;

        &:first-child {
          margin-top: 0;
        }

        .cover {
          width: 4.5rem;
          height: 3.6rem;
          img {
            display: block;
            width: 100%;
            height: 100%;
          }
        }

        .info {
          .name {
            font-size: 0.3rem;
            font-weight: bold;
            color: #f3920d;
            text-align: center;
            margin: 0.4rem 0 0.32rem;
          }

          .description {
            font-size: 0.26rem;
            color: #333;
            line-height: 0.48rem;
            text-align: justify;
            word-break: break-all;
            text-align: center;
          }
        }

        .link {
          display: block;
          width: 2.48rem;
          height: 0.78rem;
          line-height: 0.78rem;
          text-align: center;
          background-color: #000000;
          font-size: 0.26rem;
          color: #f3920d;
          cursor: pointer;
          margin-top: 0.48rem;
        }
      }
    }

    .application {
      width: 6.86rem;
      margin: 0 auto;
      .content {
        .item {
          position: relative;
          float: left;
          height: 1.94rem;
          width: 2.23rem;
          margin-right: 0.08rem;
          margin-bottom: 0.08rem;
          -webkit-box-sizing: border-box;
          box-sizing: border-box;
          overflow: hidden;

          img {
            display: block;
            width: 100%;
            height: 100%;
            opacity: 1;
            -webkit-transition: all 0.4s;
            transition: all 0.4s;
          }

          &.no-mb {
            margin-bottom: 0;
          }

          &.no-mr {
            margin-right: 0;
          }

          &:nth-child(1),
          &:nth-child(7) {
            width: 4.54rem;
          }

          &:hover {
            img {
              -webkit-transform: scale(1.2);
              transform: scale(1.2);
            }
          }

          .cover {
            position: absolute;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            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;
            background: rgba(0, 0, 0, 0.2);
            -webkit-transition: opacity 0.4s;
            transition: opacity 0.4s;

            .title {
              color: #fff;
              font-size: 0.26rem;
            }

            .subtitle {
              font-size: 0.24rem;
              color: #fff;
              font-weight: lighter;
              margin-top: 0.08rem;
            }
          }
        }
      }
    }

    .device {
      .scroll-box {
        img {
          width: 1.77rem;
          height: 2.27rem;
          margin-right: 0.24rem;

          &:first-child {
            margin-left: 0.32rem;
          }

          &:last-child {
            margin-right: 0.32rem;
          }
        }
      }
    }
  }
}