.model_list {
  padding-bottom: 100px;
}
.model_list li {
  position: relative;
  width: 32.6%;
  float: left;
  margin-right: 1%;
  margin-bottom: 8px;
  /* height: 280px;*/
  overflow: hidden;
  background: #fff;
}
.model_list li img {
  display: block;
  width: 100%;
}
.model_list li .cover {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  background: rgba(0, 66, 139, 0.8);
}
.model_list li .cover h3 {
  font-size: 24px;
  margin-top: 120px;
  padding-bottom: 20px;
  background: url(../img/core_line.png) center bottom no-repeat;
  color: #fff;
}
.model_list li h4 {
  text-align: left;
  font-size: 24px;
  color: #333;
  background: url(../img/core_line_active.png) left bottom no-repeat;
  padding-bottom: 20px;
  margin: 40px;
  display: none;
}
.model_list li .brief {
  display: none;
  line-height: 30px;
  margin: 40px;
  padding-bottom: 22px;
}
@media screen and (max-width: 1440px) {
  .model_list li {
    margin-bottom: 6px;
    height: 216px;
    overflow: hidden;
  }
  .model_list li .cover h3 {
    font-size: 22px;
    margin-top: 90px;
  }
  .model_list li h4 {
    font-size: 22px;
    padding-bottom: 20px;
    margin: 20px;
  }
  .model_list li .brief {
    line-height: 22px;
    margin: 20px;
    padding-bottom: 22px;
  }
}
@media screen and (max-width: 1000px) {
  .model_list {
    padding-bottom: 100px;
  }
  .model_list li {
    width: 100%;
    float: none;
    margin-right: 0;
    margin-bottom: 8px;
    /* height: 280px;*/
  }
  .model_list li.sp {
    display: none;
  }
  .model_list li img {
    display: block;
    width: 100%;
  }
  .model_list li .cover {
    position: relative;
    background: none;
  }
  .model_list li .cover h3 {
    font-size: 20px;
    margin-top: 10px;
    padding-bottom: 20px;
    background: none;
    color: #333;
  }
}