@media screen and(min-width:768px) {
  .advertising {
    width: 100%;
    height: 973px;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    background: #f2f2f2;
    overflow: hidden;
    background: url(/img/brand-ross-ad.png) no-repeat;
    background-position: top center;

    .video-container {
      position: relative;
      width: 960px;
      height: 540px;
      margin: 0 auto;
      margin-top: 433px;

      .play {
        position: absolute;
        width: 132px;
        height: 132px;
        border-radius: 50%;
        z-index: 2;
        top: 50%;
        left: 50%;
        -webkit-transform: translate(-50%, -50%);
        transform: translate(-50%, -50%);
        cursor: pointer;
        background: url(/img/ross-video-play.png) no-repeat center;
      }

      video {
        display: block;
        width: 100%;
        height: 100%;
      }
    }
  }

  .main {
    .about {
      .content {
        .about-swiper {
          height: 540px;

          .swiper {
            width: 720px;
            height: 100%;
            position: relative;

            .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, 0.3) !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;
            }

            img {
              width: 100%;
              height: 540px;
            }
          }

          .section {
            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;
            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: 36px 36px, 353px 422px;
            color: #fff;

            .title {
              font-size: 25px;
              font-weight: bold;
              padding: 0 24px;
              width: 100%;
              text-align: left;
              -webkit-box-sizing: border-box;
              box-sizing: border-box;
            }

            .description {
              font-size: 24px;
              font-weight: lighter;
              line-height: 44px;
              padding: 0 24px;
              text-align: justify;
              word-break: break-all;
              margin-top: 12px;
            }
          }
        }
        .more-content {
          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;
          margin-top: 24px;

          img {
            display: block;
            width: 233px;
            height: 160px;
          }
        }
      }
    }

    .chairman {
      .cover {
        img {
          display: block;
          width: 470px;
          height: 480px;
        }
      }
      .info {
        padding-top: 40px;
        margin-left: 50px;
        .name {
          font-size: 50px;
          color: #f3920d;
        }
        .name-en {
          font-size: 34px;
          color: #000000;
          font-weight: lighter;
          margin-top: 37px;

          span {
            font-size: 38px;
            color: #f3920d;
            font-weight: normal;
          }
        }
        .tip {
          font-size: 25px;
          color: #000;
          font-weight: lighter;
          margin-top: 19px;
          span {
            margin: 0 16px;
          }
        }
        .line {
          width: 36px;
          height: 7px;
          background: #f3920d;
          margin: 25px 0 37px;
        }
        .description {
          font-size: 20px;
          color: #000;
          font-weight: lighter;
        }
      }
    }

    .word {
      .content {
        img {
          display: block;
          width: 100%;
        }
      }
    }

    .brand-activity {
      .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 {
            position: absolute;
            left: 0;
            bottom: 0;
            display: inline-block;
            background: rgba(0, 0, 0, 0.5);
            padding: 19px 14px;

            .title {
              color: #fff;
              font-size: 24px;
              font-weight: lighter;
              line-height: 1.5;
            }
          }
        }
      }
    }

    .honor {
      .content {
        position: relative;

        .swiper-container {
          width: 1070px;
          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, 0.3) !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;
        }
      }
    }

    .device {
      .swiper-container {
        img {
          display: block;
          width: 100%;
        }
      }
    }
  }
}

@media screen and(max-width:768px) {
  .advertising {
    width: 100%;
    height: 5.9488rem;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    background: #f2f2f2;
    overflow: hidden;
    background: url(/img/brand-ross-ad.png) no-repeat;
    background-position: top center;
    background-size: 7.5rem;

    .video-container {
      position: relative;
      width: 6.86rem;
      height: 3.8588rem;
      margin: 0 auto;
      margin-top: 2.09rem;

      .play {
        position: absolute;
        width: 0.8rem;
        height: 0.8rem;
        border-radius: 50%;
        z-index: 2;
        top: 50%;
        left: 50%;
        -webkit-transform: translate(-50%, -50%);
        transform: translate(-50%, -50%);
        cursor: pointer;
        background: url(/img/ross-video-play.png) no-repeat center;
        background-size: 0.8rem;
      }

      video {
        display: block;
        width: 100%;
        height: 100%;
      }
    }
  }

  .main {
    .about {
      width: 6.86rem;
      margin: 0 auto;
      .content {
        .about-swiper {
          .swiper {
            width: 100%;
            float: unset !important;

            .swiper-container {
              width: 100%;
              height: 5.14rem;

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

          .section {
            float: unset !important;
            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: url(/img/icon-comma-01.png), url(/img/icon-comma-02.png);
            background-color: #f3920d;
            background-repeat: no-repeat;
            background-size: 0.66rem;
            background-position: 0.4rem 0.82rem, 5.86rem 2.8rem;
            color: #fff;
            padding: 0.4rem;

            .title {
              font-size: 0.32rem;
              font-weight: bold;
              width: 100%;
              text-align: left;
              -webkit-box-sizing: border-box;
              box-sizing: border-box;
              text-align: center;
            }

            .description {
              font-size: 0.24rem;
              line-height: 0.46rem;
              text-align: justify;
              word-break: break-all;
              margin-top: 0.4rem;
              text-align: center;
            }
          }
        }
        .more-content {
          display: none;
        }
      }
    }

    .chairman {
      width: 6.48rem;
      margin: 0 auto;
      .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;
        .cover {
          float: unset !important;
          img {
            display: block;
            width: 5.46rem;
            height: 5.57rem;
            margin: 0 auto;
          }
        }
        .info {
          float: unset !important;
          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;
          .name {
            font-size: 0.3rem;
            color: #272727;
            font-weight: bold;
          }
          .name-en {
            font-size: 0.26rem;
            color: #272727;
            margin-top: 0.32rem;

            span {
              font-size: 0.3rem;
              color: #f3920d;
            }
          }
          .tip {
            font-size: 0.26rem;
            color: #272727;
            margin-top: 0.12rem;
            span {
              margin: 0 0.16rem;
            }
          }
          .line {
            width: 0.4rem;
            height: 0.06rem;
            background: #f3920d;
            margin: 0.4rem 0;
          }
          .description {
            font-size: 0.26rem;
            color: #666;
            line-height: 0.48rem;
            text-align: center;
            margin-bottom: 0.4rem;
          }
        }
      }
    }

    .word {
      width: 6.86rem;
      margin: 0 auto;
      .content {
        img {
          display: block;
          width: 100%;
        }
      }
    }

    .brand-activity {
      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 {
            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;
            bottom: 0;
            display: inline-block;
            background: rgba(0, 0, 0, 0.5);
            padding: 0.08rem 0.1rem;

            .title {
              color: #fff;
              font-size: 0.22rem;
              font-weight: lighter;
              line-height: 1.5;
            }
          }
        }
      }
    }

    .honor {
      .scroll-box {
        img {
          width: 1.96rem;
          height: 2.83rem;
          margin-right: 0.24rem;

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

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

    .device {
      .scroll-box {
        img {
          width: 1.88rem;
          height: 2.41rem;
          margin-right: 0.24rem;

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

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