body {
  background-color: #f2f2f2;
}

.tab {
  margin-top: 40px;
}

.tab li {
  display: inline-block;
  border: 1px solid #dbdbdb;
  width: 41px;
  height: 40px;
  margin-right: 3px;
  border-radius: 6px;
  line-height:38px;
  text-align: center;
  font-size: 18px;
  cursor: pointer;
  background-color: #fff;
}
.tab li:last-child{
  margin-right: 0;
}
.tab li.on {
  background-color: #f16624;
  border: 1px solid #f16624;
  color: #fff;
}

.list li {
  width: 340px;
  height: 260px;
  background-color: #fff;
  text-align: center;
  font-size: 18px;
  margin-bottom: 40px;
}

.list .info_logo {
  max-width: 80%;
  margin: auto;
  margin-top: 35px;
  margin-bottom: 35px;
  /*height:120px;*/
}

.list .info_logo img {
  width: auto;
  height: 120px;
  object-fit: contain;
}

.list li:nth-child(3n-1) {
  margin-left: 40px;
  margin-right: 40px;
}

@media only screen and (max-width: 1100px) {
  .tab li:last-child {
    margin-top: 10px;
  }

  .list li {
    width: 40%;
    margin-bottom: 30px;
  }

  .list li:nth-child(3n-1) {
    margin: 0 5% 30px;
  }

  .list li p {
    padding: 0 5%;
  }
}

@media only screen and (max-width: 600px) {
  .tab {
    margin-top: 20px;
  }

  .tab li {
    font-size: 14px;
    width: 30px;
    height: 36px;
    line-height: 36px;
  }

  .tab li:last-child {
    margin-top: 10px;
  }

  .tab li:nth-child(9),
  .tab li:nth-child(16) {
    margin-top: 10px;
  }

  .list li {
    width: 100%;
    margin-bottom: 30px;
  }



  .list li:nth-child(3n-1) {
    margin: 0 0 30px;
  }
}

.list li .info_logo img {
  transition: all 0.6s;
}

.list li:hover .info_logo img {
  transform: scale(1.1);
}

.list li p {
  transition: all 0.6s;
}

.list li:hover p {
  color: #f16624;
}

@media only screen and (max-width:750px) {
  .list li {
    margin-bottom:15px;
    font-size:14px;
    height:auto;
    padding:15px;
  }
  .list .info_logo {
    max-width: 100%;
    margin:0 0 10px 0;
  }
  .list .info_logo img{
    height:auto;
  }
  .list li:nth-child(3n-1) {
    margin-bottom:15px;
  }
}