.topBanner {
  width: 100%;
  height: 560px;
}
.topBanner {
    position: relative;
}
    .topBanner img {
    width:100%;
    height:100%;
    object-fit:cover;
    }
    .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;
}

.soTit {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: end;
      -ms-flex-align: end;
          align-items: flex-end;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  margin-bottom: 2%;
}

.soTit h3 {
  font-size: 36px;
  color: #222;
}

.soTit a {
  font-size: 18px;
  color: #282828;
}

.soTit a i {
  transition: all .5s ease;
  -webkit-transition: all .5s ease;
}

.soTit a:hover i {
  transform: translateX(5px);
  -webkit-transform: translateX(5px);
}

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

.soList .soItem {
  margin-bottom: 3%;
}

.soList .soItem .articelList {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-line-pack: center;
      align-content: center;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  margin-top: 4%;
}

.soList .soItem .articelList li {
  color: #333;
  width: 31%;
  height: 450px;
  transition: all .5s ease;
  -webkit-transition: all .5s ease;
}

.soList .soItem .articelList li img {
  height: 45%;
  border-top-left-radius: 4px;
  border-top-right-radius: 4px;
}

.soList .soItem .articelList li .txt {
  height: 55%;
  background: #e9e9e9;
  padding: 12% 6%;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
}

.soList .soItem .articelList li span {
  font-size: 14px;
  color: #333;
}

.soList .soItem .articelList li h2 {
  font-size: 22px;
  margin: 9% 0 16%;
  width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.soList .soItem .articelList li a {
  font-size: 18px;
}

.soList .soItem .articelList li:hover {
  transform: translateY(-5px);
  -webkit-transform: translateY(-5px);
}
    .soList .soItem .articelList li:hover h2 {
        color: #942423;
    }

    .leftPop {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        width: 60px;
        border: 1px solid #e5e5e5;
        -webkit-box-shadow: 0 0 15px 1px #e5e5e5;
        box-shadow: 0 0 15px 1px #e5e5e5;
        background: white;
        position: absolute;
        top: 4%;
        left: -80px;
    }

.leftPop li {
  height: 80px;
  padding: 20%;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  text-align: center;
  border-top: 1px solid #e5e5e5;
  font-size: 14px;
  color: #999;
  line-height: 24px;
}

.leftPop li.on {
  color: #942423;
}

.leftPop li:nth-child(1) {
  border-top: none;
}

.coWrap {
  position: relative;
}

@media (max-width: 1366px) {
  .leftPop {
    left: -50px;
  }
}

@media (max-width: 1280px) {
  .leftPop {
    left: 15px;
  }
}

@media (max-width: 1200px) {
  .leftPop {
    left: -50px;
  }
}

@media (max-width: 1080px) {
  .leftPop {
    left: 15px;
  }
}

@media (max-width: 996px) {
  .leftPop {
    left: -50px;
  }
}

@media (max-width: 850px) {
  .leftPop {
    left: 15px;
  }
}

@media (max-width: 768px) {
  .leftPop {
    display: none;
  }
}

@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;
  }
}

@media (max-width: 1200px) {
  .soTit h3 {
    font-size: 32px;
  }
  .soTit a {
    font-size: 17px;
  }
}

@media (max-width: 996px) {
  .soTit h3 {
    font-size: 26px;
  }
  .soTit a {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .soTit h3 {
    font-size: 21px;
  }
  .soTit a {
    font-size: 14px;
  }
}

@media (max-width: 768px) {
  .soTit h3 {
    font-size: 18px;
  }
  .soTit a {
    font-size: 13px;
  }
}

@media (max-width: 1200px) {
  .videoWrap {
    height: 416px;
  }
  .soList .soItem .articelList li {
    height: 380px;
  }
  .soList .soItem .articelList li h2 {
    font-size: 20px;
  }
  .soList .soItem .articelList li a {
    font-size: 17px;
  }
}

@media (max-width: 996px) {
  .soList .soItem .articelList li {
    height: 304px;
  }
  .soList .soItem .articelList li h2 {
    font-size: 18px;
  }
  .soList .soItem .articelList li a {
    font-size: 16px;
  }
}

@media (max-width: 768px) {
  .videoWrap {
    height: 333px;
  }
  .soList .soItem .articelList li {
    height: 243px;
  }
  .soList .soItem .articelList li h2 {
    font-size: 16px;
  }
  .soList .soItem .articelList li a {
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .videoWrap {
    height: 266px;
  }
  .soList .soItem .articelList {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
  }
  .soList .soItem .articelList li {
    width: 100%;
    height: 300px;
    margin-bottom: 3%;
  }
  .soList .soItem .articelList li .txt {
    padding: 4%;
  }
  .soList .soItem .articelList li h2 {
    margin: 7% 0 13%;
  }
}