.ztbox {
  width: 100%;
  padding-bottom: 40px;
}
.ztbox h4 {
  height: 40px;
  display: block;
  font-size: 22px;
  margin-top: 10px;
  line-height: 40px;
}
.ztbox h4::after {
  content: "";
  display: block;
  width: 5px;
  height: 24px;
  background: #00A0D5;
  float: left;
  margin-top: 8px;
  margin-right: 20px;
}
.ztbox .topct_bt {
  background: white;
  margin-top: 15px;
  padding: 5px 15px;
  margin-bottom: 20px;
}
.ztbox .topct_bt ul.bt_bottom {
  margin-top: 10px;
  margin-bottom: 20px;
}
.ztbox .topct_bt ul.bt_bottom li {
  height: 230px;
  margin-bottom: 20px;
  border-top: 1px dashed #D8D8D8;
  padding-top: 20px;
}
.ztbox .topct_bt ul.bt_bottom li .btb_left {
  float: left;
  width: 160px;
  height: 230px;
  position: relative;
  margin-right: 20px;
}
.ztbox .topct_bt ul.bt_bottom li .btb_left img {
  width: 160px;
  height: 160px;
  margin-bottom: 20px;
}
.ztbox .topct_bt ul.bt_bottom li .btb_left span {
  position: absolute;
  top: 0px;
  left: 0px;
  width: 70px;
  height: 70px;
  display: block;
  line-height: 39px;
  padding-left: 10px;
  box-sizing: border-box;
  font-weight: bold;
  color: white;
  font-size: 22px;
  background: linear-gradient(-45deg, transparent 56px, #00A1D6 0);
}
.ztbox .topct_bt ul.bt_bottom li:nth-of-type(1) .btb_left span,
.ztbox .topct_bt ul.bt_bottom li:nth-of-type(2) .btb_left span,
.ztbox .topct_bt ul.bt_bottom li:nth-of-type(3) .btb_left span {
  background: linear-gradient(-45deg, transparent 56px, #F25D8E 0);
}
.ztbox .topct_bt ul.bt_bottom li .btb_left a:nth-of-type(2){
  margin-top: 10px;
  display: block;
  width: 160px;
  height: 50px;
  color: dodgerblue;
  font-size: 18px;
  line-height: 50px;
  text-align: center;
  margin: 0 auto;
  border-radius: 10px;
  background: #00A1D6;
  color: white;
  transition: all 0.3s;
}
.ztbox .topct_bt ul.bt_bottom li .btb_left a:nth-of-type(2):hover {
  color: lightgoldenrodyellow;
  background: #00A1D6;
}
.ztbox .topct_bt ul.bt_bottom li .btb_middle {
  width: 570px;
  float: left;
  height: 230px;
}
.ztbox .topct_bt ul.bt_bottom li .btb_middle em {
  font-style: normal;
  display: block;
  font-size: 20px;
  font-weight: bold;
  margin: 5px;
  text-align: center;
  margin-bottom: 20px;
}
.ztbox .topct_bt ul.bt_bottom li .btb_middle span {
  font-size: 16px;
  padding: 0px 30px;
  border-right: 2px solid gainsboro;
}
.ztbox .topct_bt ul.bt_bottom li .btb_middle span.pf {
  border-right: none;
  color: #F25D8E;
}
.ztbox .topct_bt ul.bt_bottom li .btb_middle p {
  margin-top: 20px;
  line-height: 22px;
  font-size: 14px;
  color: grey;
  text-indent: 2em;
}
.ztbox .topct_bt ul.bt_bottom li .btb_right {
  float: right;
  height: 230px;
}
.ztbox .topct_bt ul.bt_bottom li .btb_right img {
  width: 130px;
  height: 230px;
  margin-left: 5px;
}
.ztbox .zt_like {
  
  background: white;
  margin-top: 20px;
  padding: 5px 15px;
  padding-bottom: 20px;
}
.ztbox .zt_like a:hover p {
  top: 0px;
  height: 160px;
  line-height: 160px;
  background: rgba(0, 0, 0, 0.7);
  color: #F25D8E;
}
.ztbox .zt_like h4 {
  border-bottom: 1px solid gainsboro;
}
.ztbox .zt_like ul {
  margin-top: 15px;
  width: 100%;
  display: flex;
  justify-content: space-between;
}
.ztbox .zt_like ul li {
  width: 100%;
  height: 160px;
  float: left;
  position: relative;
}
.ztbox .zt_like ul li img {
  width: 285px;
  height: 160px;
}
.ztbox .zt_like ul li p {
  width: 285px;
  position: absolute;
  top: 120px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  left: 0px;
  color: white;
  background: rgba(0, 0, 0, 0.6);
  transition: all 0.2s;
}
.ztbox .topct_t {
  padding-top: 10px;
  padding-bottom: 10px;
  height: 360px;
}
.ztbox .topct_t .tt_left {
  width: 700px;
  height: 100%;
  float: left;
  position: relative;
  background: black;
}
.ztbox .topct_t .tt_left img {
  width: 100%;
  height: 100%;
}
.ztbox .topct_t .tt_left span {
  display: block;
  color: white;
  padding: 5px;
  padding-right: 20px;
  border-bottom-right-radius: 13px;
  border-top-right-radius: 13px;
  background: orangered;
  position: absolute;
  top: 15px;
  left: 0;
}
.ztbox .topct_t .tt_right {
  width: 480px;
  background: white;
  float: right;
  padding: 15px 20px;
  box-sizing: border-box;
  position: relative;
  height: 358px;
  overflow-y: auto;
}
.ztbox .topct_t .tt_right em{
  text-align: center;
  font-size: 18px;
  margin-bottom: 30px;
  display:block;
  width:100%;
  font-style: normal;
  color:#00A0D5;
  
}
.ztbox .topct_t .tt_right p {
  text-indent: 2em;
  margin-bottom: 10px;
  line-height: 24px;
  font-size: 13px;
}
.ztbox .topct_t .tt_right span#zuozhe {
  display: block;
  float: right;
}
.ztbox .topct_t .tt_right b {
  display: block;
  color: white;
  font-weight: normal;
  padding: 5px;
  padding-right: 20px;
  border-bottom-right-radius: 13px;
  border-top-right-radius: 13px;
  background: #F25D8E;
  position: absolute;
  top: 15px;
  left: 0;
}
video {
  object-fit: contain;
  width: 100%;
  height: 100%;
}