@media screen and (max-width: 420px) {
  .technological{
    background-color: white;
  }
  .recovery {
    width: 100%;
  }
  .recovery .works {
    width: 100%;
    margin: 50px auto;
    display: flex;
    justify-content: space-around;
    flex-flow: wrap;
  }
  .recovery .works .databack {
    display: block;
    width: 46%;
    border: solid 1px #f1f1f1;
    margin: 10px auto;
    text-decoration: none;
    padding-bottom: 30px    ;
  }
  .recovery .works .databack img {
    width: 100%;
  }
  .recovery .works .databack .title {
    width: 100%;
    height: 50px;
    background-color: #999999;
    margin-top: -5px;
    line-height: 50px;
    font-size: 14px;
    color: white;
    text-align: center;
  }
  .recovery .works .databack .cando {
    font-size: 12px;
    color: #666666;
    width: 90%;
    margin: 10px auto;
    line-height: 23px;
  }
  .recovery .works .databack .category {
    width: 90%;
    margin: 0 auto;
    display: flex;
    flex-flow: row wrap;
    justify-content: space-between;
  }
  .recovery .works .databack .category div {
    width: 30%;
    height: 25px;
    background-color: #cccccc;
    text-align: center;
    font-size: 12px;
    color: white;
    border-radius: 10px;
    line-height: 25px;
    margin-top: 8px;
  }
  .recovery .works .databack:hover .title {
    background-color: #00a0ea;
  }
  .recovery .works .databack:hover .category div {
    background-color: #00a0ea;
  }
  .swiper-container{
    height: 700px;
  }
  .swiper-button-prev{
    display: none;
  }
  .swiper-button-next{
    display: none;
  }
}
@media screen and (max-width: 769px) and (min-width: 420px) {
  .technological{
    background-color: white;
  }
  .recovery {
    width: 100%;
  }
  .recovery .works {
    width: 100%;
    margin: 50px auto;
    display: flex;
    justify-content: space-around;
    flex-flow: wrap;
  }
  .recovery .works .databack {
    display: block;
    width: 46%;
    border: solid 1px #f1f1f1;
    margin: 10px auto;
    text-decoration: none;
    padding-bottom: 30px    ;
  }
  .recovery .works .databack img {
    width: 100%;
  }
  .recovery .works .databack .title {
    width: 100%;
    height: 50px;
    background-color: #999999;
    margin-top: -5px;
    line-height: 50px;
    font-size: 15px;
    color: white;
    text-align: center;
  }
  .recovery .works .databack .cando {
    font-size: 13px;
    color: #666666;
    width: 90%;
    margin: 10px auto;
    line-height: 18px;
  }
  .recovery .works .databack .category {
    width: 90%;
    margin: 0 auto;
    display: flex;
    flex-flow: row wrap;
    justify-content: space-between;
  }
  .recovery .works .databack .category div {
    width: 30%;
    height: 25px;
    background-color: #cccccc;
    text-align: center;
    font-size: 12px;
    color: white;
    border-radius: 10px;
    line-height: 25px;
    margin-top: 8px;
  }
  .recovery .works .databack:hover .title {
    background-color: #00a0ea;
  }
  .recovery .works .databack:hover .category div {
    background-color: #00a0ea;
  }
}
@media screen and (max-width: 992px) and (min-width: 769px) {
  .technological{
    background-color: white;
  }
  .recovery {
    width: 100%;
  }
  .recovery .works {
    width: 100%;
    margin: 50px auto;
    display: flex;
  }
  .recovery .works .databack {
    display: block;
    width: 270px;
    border: solid 1px #f1f1f1;
    margin: 0px 14px;
    text-decoration: none;
    padding-bottom: 30px    ;
  }
  .recovery .works .databack img {
    width: 100%;
  }
  .recovery .works .databack .title {
    width: 100%;
    height: 50px;
    background-color: #999999;
    margin-top: -5px;
    line-height: 50px;
    font-size: 15px;
    color: white;
    text-align: center;
  }
  .recovery .works .databack .cando {
    font-size: 13px;
    color: #666666;
    width: 90%;
    margin: 10px auto;
    line-height: 18px;
  }
  .recovery .works .databack .category {
    width: 90%;
    margin: 0 auto;
    display: flex;
    flex-flow: row wrap;
    justify-content: space-between;
  }
  .recovery .works .databack .category div {
    width: 30%;
    height: 25px;
    background-color: #cccccc;
    text-align: center;
    font-size: 12px;
    color: white;
    border-radius: 10px;
    line-height: 25px;
    margin-top: 8px;
  }
  .recovery .works .databack:hover .title {
    background-color: #00a0ea;
  }
  .recovery .works .databack:hover .category div {
    background-color: #00a0ea;
  }
}
@media screen and (max-width: 1200px) and (min-width: 992px) {
  .technological{
    background-color: white;
  }
  .recovery {
    width: 100%;
  }
  .recovery .works {
    width: 100%;
    margin: 50px auto;
    display: flex;
  }
  .recovery .works .databack {
    display: block;
    width: 270px;
    border: solid 1px #f1f1f1;
    margin: 0px 14px;
    text-decoration: none;
    padding-bottom: 30px    ;
  }
  .recovery .works .databack img {
    width: 100%;
  }
  .recovery .works .databack .title {
    width: 100%;
    height: 50px;
    background-color: #999999;
    margin-top: -5px;
    line-height: 50px;
    font-size: 15px;
    color: white;
    text-align: center;
  }
  .recovery .works .databack .cando {
    font-size: 13px;
    color: #666666;
    width: 90%;
    margin: 10px auto;
    line-height: 18px;
  }
  .recovery .works .databack .category {
    width: 90%;
    margin: 0 auto;
    display: flex;
    flex-flow: row wrap;
    justify-content: space-between;
  }
  .recovery .works .databack .category div {
    width: 30%;
    height: 25px;
    background-color: #cccccc;
    text-align: center;
    font-size: 12px;
    color: white;
    border-radius: 10px;
    line-height: 25px;
    margin-top: 8px;
  }
  .recovery .works .databack:hover .title {
    background-color: #00a0ea;
  }
  .recovery .works .databack:hover .category div {
    background-color: #00a0ea;
  }
}
@media screen and (min-width: 1200px) {
  .technological{
    background-color: white;
  }
  .recovery {
    width: 100%;
  }
  .recovery .works {
    width: 1200px;
    margin: 50px auto;
    display: flex;
  }
  .recovery .works .databack {
    display: block;
    width: 270px;
    height: 530px;
    border: solid 1px #f1f1f1;
    margin: 50px 14px;
    text-decoration: none;
  }
  .recovery .works .databack img {
    width: 100%;
  }
  .recovery .works .databack .title {
    width: 100%;
    height: 50px;
    background-color: #999999;
    margin-top: -5px;
    line-height: 50px;
    font-size: 15px;
    color: white;
    text-align: center;
  }
  .recovery .works .databack .cando {
    font-size: 13px;
    color: #666666;
    width: 100%;
    height: 100px;
    margin: 0 auto;
    line-height: 23px;
    padding: 10px 10px;
  }
  .recovery .works .databack .cando:hover{
    background-color: #00a1ea;
    color: white;
  }
  .recovery .works .databack .category {
    display: flex;
    flex-flow: row wrap;
  }
  .recovery .works .databack .category div {
    width: 30%;
    height: 25px;
    margin: 10px 1.5%;
    background-color: #cccccc;
    text-align: center;
    font-size: 12px;
    color: white;
    border-radius: 10px;
    line-height: 25px;
  }
  /* .recovery .works .databack:hover .title {
    background-color: #00a0ea;
  }
  .recovery .works .databack:hover .category div {
    background-color: #00a0ea;
  } */
  .recovery .works .databack .title:hover{
    background-color: #00a0ea;
  }
  .recovery .works .databack .category:hover div {
    background-color: #00a0ea;
  } 
  .swiper-container{
    height: 450px;
    max-width: 1200px;
  }
}