.topBanner {
  width: 100%;
  height: 560px;
}

.topBanner {
    position: relative;
}
.topBanner>img{
 height:100%;
}
    .topBanner .txt {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -webkit-box-align: center;
        -ms-flex-align: center;
        align-items: center;
        -webkit-box-pack: center;
        -ms-flex-pack: center;
        justify-content: center;
    }

        .topBanner .txt h2 {
            font-size: 60px;
            color: white;
        }

@media (max-width: 1200px) {
    .topBanner .txt h2 {
        font-size: 48px;
    }
}

@media (max-width: 996px) {
    .topBanner .txt h2 {
        font-size: 38px;
    }
}

@media (max-width: 768px) {
    .topBanner .txt h2 {
        font-size: 30px;
    }
}

@media (max-width: 480px) {
    .topBanner .txt h2 {
        font-size: 24px;
    }
}
.crumbs {
  font-size: 14px;
  color: #666;
  margin: 2% 0 4% 0;
}

.videoWrap {
  width: 100%;
  height: 520px;
}

@media (max-width: 1200px) {
  .topBanner {
    height: 450px;
  }
}

@media (max-width: 996px) {
  .topBanner {
    height: 385px;
  }
}

@media (max-width: 768px) {
  .topBanner {
    height: 308px;
  }
}

@media (max-width: 480px) {
  .topBanner {
    height: 265px;
  }
}

@media (max-width: 480px) {
  .crumbs {
    font-size: 12px;
  }
}

.listTit {
  font-size: 36px;
  color: #222;
  margin-bottom: 5%;
}

ul.soList {
  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;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
}

    ul.soList li {
        height: 510px;
        width: 31%;
        transition: all .5s ease;
        -webkit-transition: all .5s ease;
        margin-bottom: 5%;
        -webkit-box-shadow: 0 0 20px 2px #e5e5e5;
        box-shadow: 0 0 20px 2px #e5e5e5;
    }

    ul.soList li img {
        height: 40%;
        border-top-left-radius: 4px;
        border-top-right-radius: 4px;
    }

ul.soList li .txt {
  height: 60%;
  color: #333;
  padding: 15% 5% 0;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
}

ul.soList li .txt span {
  font-size: 14px;
}

ul.soList li .txt p {
  font-size: 22px;
  line-height: 36px;
  margin: 5% 0 20% 0;
  height: 29%;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}

ul.soList li .txt a {
  font-size: 18px;
}

ul.soList li .txt a i {
  transition: all .5s ease;
  -webkit-transition: all .5s ease;
}

ul.soList li:hover {
  
  transform: translateY(-5px);
  -webkit-transform: translateY(-5px);
}

ul.soList li .txt a:hover i {
  transform: translateX(5px);
  -webkit-transform: translateX(5px);
}

@media (max-width: 1200px) {
  .listTit {
    font-size: 32px;
  }
  ul.soList li {
    height: 460px;
  }
  ul.soList li .txt p {
    font-size: 20px;
    line-height: 30px;
    height: 27%;
  }
}

@media (max-width: 996px) {
  .listTit {
    font-size: 28px;
  }
  ul.soList li {
    height: 368px;
  }
  ul.soList li .txt p {
    line-height: 25px;
  }
}

@media (max-width: 480px) {
  .listTit {
    font-size: 22px;
  }
  ul.soList li {
    width: 100%;
  }
  ul.soList li .txt {
    padding: 9% 5% 0;
  }
  ul.soList li .txt p {
    margin: 5% 0 14% 0;
  }
}