.head-page .item:nth-child(4) span {
  color: #CD2620;
}

.case_lists .list {
  margin-bottom: 38px;
  display: block;
  width: 32.625%;
  margin-right: 1.0625%;
}

.case_lists .list:nth-child(3n) {
  margin-right: 0;
}

.case_lists .case_img {
  height: 346px;
}

.case_lists .case_texts {
  height: 186px;
  background: #FFFFFF;
  padding: 32px 29px 26px;
  box-sizing: border-box;
}

.case_lists .case_tit {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
}

.case_lists .case_text {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  height: 48px;
  margin: 9px 0 23px;
}

.case_lists .view_btn {
    cursor: pointer;
}
.case_lists .watch_detail {
  display: flex;
  align-items: center;
  cursor: pointer;
}
.case_lists .watch_detail::before {
  content: "";
  display: block;
  width: 20px;
  height: 20px;
  border: 2px solid #313131;
  border-radius: 50%;
  background: url(../img/watch_detail.png) no-repeat center/cover;
  margin-right: 13px;
}

.detail_btn {
  width: 80px;
  height: 80px;
  background: #CD2620;
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .4s;
  opacity: 0;
  cursor: pointer;
}

.detail_btn::after {
  content: "";
  display: block;
  width: 16px;
  height: 17px;
  background: url(../img/detail_btn.png) no-repeat center/cover;
  transition: all .4s;
}


.tk {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, .5);
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
}

.tk.active {
  display: flex;
}

.tk .box {
  max-height:630px;
  background: #FFFFFF;
  max-width: 1342px;
  width: 92%;
  padding: 140px 55px;
  box-sizing: border-box;
  position: relative;
  height: 92%;
}

.tk .img {
  width: 42.35%;
  height: 348px;

  border: 1px solid #cdcdcd;
  box-sizing: border-box;
}
.tk .img img{
  display: block;
  max-width: 100%;
  max-height: 100%;
}
.tk .texts {
  width: 52%;
}

.tk .texts .title {
  border-bottom: 1px solid #EEEEEE;
  padding-bottom: 24px;
  box-sizing: border-box;
  margin-bottom: 25px;
}
.tk .texts .desc {
  max-height: 240px;
  overflow-y: auto;
  padding-right: 5px;
  box-sizing: border-box;
}
.tk .texts .tit {
  position: relative;
  padding-left: 19px;
  box-sizing: border-box;
}

.tk .texts .tit::before {
  content: "";
  display: block;
  width: 3px;
  height: 22px;
  background: #CD2620;
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
}

.close_btn {
  width: 60px;
  height: 60px;
  background: #CD2620;
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  right: 0;
  top: 0;
}

.close_btn img {
  transition: all .4s;
}

.tk .swiper-pagination-bullet {
  width: 10px;
  height: 10px;
  border: 1px solid #CD2620;
  border-radius: 50%;
  opacity: 1;
  background: transparent;
}

.tk .swiper-pagination-bullet-active {
  background: #CD2620;
}
.tk .swiper-container{
  width: 100%;
  height: 100%;
}
.tk .swiper-slide{
  display: flex;
  align-items: center;
  justify-content: center;
  position: initial;
  width: 100%;
  height: 100%;
}
@media only screen and (min-width: 960px) {
  .case_lists .list:hover .case_img img {
    height: 105%;
  }

  .case_lists .list:hover .detail_btn {
    opacity: 1;
  }

  .close_btn:hover img {
    transform: rotate(360deg);
    ;
  }
}


@media only screen and (max-width: 1366px) {
  .case_lists .case_img {
    height: 265px;
  }
  .detail_btn {
    width: 70px;
    height: 70px;
  }
}

@media only screen and (max-width: 1200px) {
  .case_lists .case_img {
    height: 235px;
  }
  .detail_btn {
    width: 60px;
    height: 60px;
  }

  .tk .box {
    max-height: 530px;
    max-width: 1000px;
    padding: 90px 55px;
  }
}

@media only screen and (max-width: 1043px) {
  .case_lists .case_texts {
    padding: 32px 20px 26px;
  }
  .case_lists .list {
    margin-bottom: 20px;
  }
  .tk .texts .desc {
    max-height: 252px;
  }
}

@media only screen and (max-width: 768px) {
  .case_lists .list {
    margin-bottom: 20px;
    width: 100%;
  }
  .case_lists .case_texts {
    padding: 25px 20px;
    height: auto;
  }
  .case_lists .case_text{
    margin: 9px 0 15px;
    height: 45px;
  }
  .case_lists .list:last-child{
    margin-bottom: 0;
  }

  .tk .box {
    max-height: 88%;
    max-width: 100%;
    padding: 60px 20px 30px;
    height: auto;
  }
  .tk .img {
    width: 100%;
    height: 248px;
  }
  .tk .texts {
    width: 100%;
    margin-top: 25px;
  }
  .tk .texts .desc {
    max-height: 82px;
  }
  .close_btn {
    width: 35px;
    height: 35px;
  }
}