.project_list {
  margin: -10px;
}

.project_list li {
  width: 33.3%;
  float: left;
  padding: 10px;
}

.project_list li .wrap {
  width: 100%;
  overflow: hidden;
}

.project_list li .wrap .cover {
  width: 100%;
  height: 340px;
}

.project_list li .wrap .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project_list li .wrap .msg {
  width: 100%;
  text-align: center;
}

.project_list li .wrap .msg h4 {
  font-size: 24px;
  font-weight: normal;
  color: #333;
  margin-top: 26px;
  margin-bottom: 24px;
}

@media (max-width: 1700px) and (min-width: 1300px) {
  .project_list li .wrap .cover {
    height: 270px;
  }

  .project_list li .wrap .msg h4 {
    font-size: 18px;
    margin-top: 20px;
  }
}

@media (max-width: 1300px) {
  .page_sub {
    padding-top: 0;
  }

  .project_list {
    margin: 0;
  }

  .project_list li {
    width: 100%;
  }

  .project_list li .wrap .cover {
    height: 250px;
  }

  .project_list li .wrap .msg h4 {
    font-size: 16px;
    margin-top: 10px;
  }
}