@keyframes dow_arr1 {
  0% {
    opacity: 0;
  }
  24% {
    opacity: 0;
  }
  25% {
    opacity: 1;
  }
  100% {
    opacity: 1;
  }
}
@keyframes dow_arr2 {
  0% {
    opacity: 0;
  }
  49% {
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 1;
  }
}
@keyframes large-s {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.05);
  }
}
.ctn_1 {
  width: 100%;
  overflow: hidden;
  padding: 4rem 0 0;
}
.ctn_1 .btimg {
  display: flex;
  justify-content: center;
  align-items: center;
}
.ctn_1 .btimg img {
  width: 50%;
}
.ctn_1 .w1440 {
  overflow: hidden;
}
.ctn_1 .tit {
  color: #222;
  text-align: center;
}
.ctn_1 .pic {
  width: 100%;
  position: relative;
  margin-top: 2rem;
}
.ctn_1 .pic .txt {
  position: absolute;
  left: 2rem;
  bottom: 1.5rem;
}
.ctn_1 .pic .txt p {
  display: block;
  color: #fff;
}
.ctn_1 .pic .txt span {
  color: #fff;
  font-size: 12px;
}
.ctn_1 .tab {
  text-align: center;
  margin-top: 2.5rem;
}
.ctn_1 .tab a {
  display: inline-block;
  padding: 15px 10%;
  margin: 0 2%;
  border-radius: 100px;
  background-color: #e7e0d8;
  color: #23232c;
}
.ctn_1 .tab a.on {
  background-color: #b1987f;
  color: #fff;
}
.ctn_1 .infor {
  margin-top: 3rem;
  border-top: 1px solid #d8d8d8;
}
.ctn_1 .infor ul {
  border-bottom: 1px solid #d8d8d8;
  padding-bottom: 1.5rem;
}
.ctn_1 .infor ul li {
  position: relative;
}
.ctn_1 .infor ul li .name {
  color: #333;
  width: 100%;
  padding: 1.5rem 0;
}
.ctn_1 .infor ul li .sign {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 20px;
  height: 20px;
  transition: all 0.3s;
}
.ctn_1 .infor ul li .sign em {
  display: block;
  width: 100%;
  height: 100%;
  width: 1px;
  background-color: #23232c;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.3s;
}
.ctn_1 .infor ul li .sign em:nth-child(1) {
  transform: translate(-50%, -50%) rotate(90deg);
}
.ctn_1 .infor ul li.on .sign {
  transform: rotate(270deg);
}
.ctn_1 .infor ul li.on .sign em:nth-child(1) {
  transform: translate(-50%, -50%) rotate(0deg);
}
.ctn_1 .infor ul li i {
  color: #777;
  font-size: 16px;
  display: inline-block;
  width: 22%;
  padding-right: 2%;
  margin-bottom: 0.6rem;
}
.ctn_1 .infor ul li .img {
  width: 30%;
  padding-top: 22.4%;
  position: absolute;
  bottom: 0;
  right: 0;
  border-radius: 5px;
  overflow: hidden;
}
.ctn_1 .infor ul li .img:hover img {
  transform: translate(-50%, -50%) scale(1.05);
}
.ctn_1 .infor ul li .img img {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.ctn_1 .infor ul li a {
  display: inline-block;
  padding: 15px 40px;
  position: absolute;
  top: 10px;
  right: 0;
  background-color: #b1987f;
  font-size: 16px;
  color: #fff;
  border-radius: 100px;
}
.ctn_1 .infor ul li .txt {
  width: 68%;
}
.ctn_1 .infor ul li .txt p {
  font-size: 18px;
  color: #4f4f4f;
  display: block;
  margin-top: 1.5rem;
}
.ctn_1 .infor ul li .txt span {
  font-size: 16px;
  color: #666;
  display: block;
  margin-top: 1rem;
  line-height: 2;
}
.ctn_1 .infor ul li:nth-child(1) {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  cursor: pointer;
}
.ctn_1 .infor ul li:nth-last-child(1) {
  display: none;
}
@media screen and (max-width: 1280px) {
  .ctn_1 .infor ul li i {
    font-size: 12px;
  }
  .ctn_1 .infor ul li .txt p {
    font-size: 14px;
  }
  .ctn_1 .infor ul li .txt span {
    font-size: 12px;
  }
}
@media screen and (max-width: 768px) {
  .ctn_1 .infor ul li i {
    width: 50%;
  }
  .ctn_1 .infor ul li a {
    position: static;
    display: block;
    width: 100%;
    text-align: center;
    margin-top: 1rem;
    padding: 10px 0;
  }
  .ctn_1 .infor ul li .img {
    display: none;
  }
  .ctn_1 .infor ul li .txt {
    width: 100%;
  }
  .ctn_1 .pic img {
    width: 150%;
    margin-left: -25%;
  }
  .ctn_1 .pic .txt span {
    font-size: 10px;
  }
  .ctn_1 .pic .txt p {
    font-size: 14px;
  }
  .ctn_1 .tab a {
    padding: 10px 10%;
  }
}