.qyjt-ul {
  float: left;
  width: calc(100% + 55px);
  margin-bottom: 50px;
  margin-left: -55px;
}
.qyjt-li {
  float: left;
  border: 1px solid #d1d1d1;
  position: relative;
  width: 250px;
  height: 377px;
  margin-bottom: 55px;
  margin-left: 55px;
}
.qyjt-li .imgs {
  position: absolute;
  top: 5px;
  left: 5px;
  width: calc(100% - 10px);
  height: calc(100% - 10px);
  z-index: 1;
  overflow: hidden;
}
.qyjt-li .imgs img {
  width: 100%;
}
.qyjt-li .covers {
  display: none;
  position: relative;
  z-index: 2;
  margin-left: 5px;
  margin-top: 5px;
  width: calc(100% - 10px);
  height: calc(100% - 10px);
  background-color: rgba(0, 0, 0, 0.6);
  color: #fff;
  padding: 28px 44px;
}
.qyjt-li .covers .title {
  font-size: 18px;
  line-height: 25px;
  height: 50px;
  text-align: center;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-box-orient: vertical;
}
.qyjt-li .covers .lines {
  margin-top: 24px;
  background-color: #fff;
  height: 1px;
  width: 100%;
}
.qyjt-li .covers .contains {
  margin-top: 44px;
  font-size: 16px;
  text-align: center;
  line-height: 25px;
  height: 100px;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-box-orient: vertical;
}
.qyjt-li .covers .times {
  margin-top: 24px;
  font-size: 14px;
  text-align: center;
}
.qyjt-li:hover {
  border: 1px solid #009944;
  cursor: pointer;
}
.qyjt-li:hover .covers {
  display: block;
}
@media screen and (max-width: 1600px) {
  .qyjt-li {
    width: 210px;
    height: 315px;
  }
  .qyjt-li .covers {
    padding: 36px 24px;
  }
  .qyjt-li .covers .title {
    font-size: 18px;
    line-height: 25px;
    height: 50px;
  }
  .qyjt-li .covers .lines {
    margin-top: 24px;
  }
  .qyjt-li .covers .contains {
    margin-top: 24px;
    font-size: 16px;
    line-height: 25px;
    height: 100px;
  }
  .qyjt-li .covers .times {
    margin-top: 14px;
    font-size: 14px;
  }
}
@media screen and (max-width: 1440px) {
  .qyjt-li {
    width: 170px;
    height: 255px;
  }
  .qyjt-li .covers {
    padding: 9px 14px;
  }
  .qyjt-li .covers .title {
    font-size: 16px;
    line-height: 21px;
    height: 42px;
  }
  .qyjt-li .covers .lines {
    margin-top: 14px;
  }
  .qyjt-li .covers .contains {
    margin-top: 24px;
    font-size: 14px;
    line-height: 21px;
    height: 84px;
  }
  .qyjt-li .covers .times {
    margin-top: 14px;
    font-size: 12px;
  }
}
@media screen and (max-width: 1000px) {
  .qyjt-ul {
    float: left;
    width: 100%;
    margin-bottom: 50px;
    margin-left: 0;
  }
  .qyjt-li {
    width: 210px;
    height: 315px;
  }
  .qyjt-li .covers {
    padding: 36px 24px;
  }
  .qyjt-li .covers .title {
    font-size: 18px;
    line-height: 25px;
    height: 50px;
  }
  .qyjt-li .covers .lines {
    margin-top: 24px;
  }
  .qyjt-li .covers .contains {
    margin-top: 24px;
    font-size: 16px;
    line-height: 25px;
    height: 100px;
  }
  .qyjt-li .covers .times {
    margin-top: 14px;
    font-size: 14px;
  }
}