@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;
  margin-top: -10%;
  position: relative;
  z-index: 5;
  padding-bottom: 4rem;
}
.ctn_1 .w1280 {
  background-position: top center;
  background-repeat: no-repeat;
  background-size: 100%;
  background-color: #fbfbfb;
}
.ctn_1 .history {
  width: 96%;
  margin: 1.5rem auto;
  position: relative;
}
.ctn_1 .history .line {
  position: absolute;
  width: 2px;
  height: 100%;
  left: 149px;
  top: 0;
  background-color: #D9B8B8;
  z-index: 1;
}
.ctn_1 .history li {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: flex-start;
  padding-top: 1rem;
  padding-bottom: 1rem;
}
.ctn_1 .history li .time {
  width: 140px;
  color: #7B191F;
}
.ctn_1 .history li .dot {
  width: 20px;
  height: 20px;
  border-radius: 100%;
  border: 4px solid #7B191F;
  background-color: #fff;
  margin-top: 2px;
}
.ctn_1 .history li .des {
  width: calc(100% - 160px);
  padding-left: 4%;
}
.ctn_1 .history li .des .tit {
  color: #0C6856;
}
.ctn_1 .history li .des .img {
  margin-top: 1rem;
  display: flex;
  justify-content: flex-start;
}
.ctn_1 .history li .des .img div {
  display: block;
  width: 31%;
  margin: 1%;
  border-radius: 6px;
  overflow: hidden;
}
.ctn_1 .history li .des .img div img {
  transition: all 0.3s;
}
.ctn_1 .history li .des .img div:hover img {
  transform: scale(1.05);
}
@media screen and (max-width: 1200px) {
  .ctn_1 .history li .time {
    width: 130px;
  }
  .ctn_1 .history .line {
    left: 139px;
  }
}
@media screen and (max-width: 768px) {
  .ctn_1 .history .line {
    left: 10px;
  }
  .ctn_1 .history li {
    flex-wrap: wrap;
    justify-content: right;
  }
  .ctn_1 .history li .time {
    width: calc(100% - 20px);
    padding-left: 15px;
    order: 2;
  }
  .ctn_1 .history li .dot {
    order: 1;
  }
  .ctn_1 .history li .des {
    order: 3;
    width: calc(100% - 20px);
    padding-left: 15px;
  }
  .ctn_1 .history li .des .img {
    flex-wrap: wrap;
  }
  .ctn_1 .history li .des .img div {
    width: 48%;
  }
}