@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;
}
.ctn_1 .tit {
  color: #222;
  font-weight: bold;
  text-align: center;
}
.ctn_1 .sub_tit {
  color: #333;
  text-align: center;
  margin-top: 1.5rem;
  line-height: 2;
}
.ctn_1 .synopsis {
  position: relative;
  margin-top: 5rem;
}
.ctn_1 .synopsis .video_box {
  width: 41%;
  position: absolute;
  top: -10%;
  left: 3.5%;
  z-index: 2;
}
.ctn_1 .synopsis .video_box .play-video {
  width: 14%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.3s;
  cursor: pointer;
}
.ctn_1 .synopsis .video_box:hover .play-video {
  transform: translate(-50%, -50%) scale(1.1);
}
.ctn_1 .synopsis .text {
  width: 100%;
  z-index: 1;
  background-color: #f2f2f3;
  position: relative;
}
.ctn_1 .synopsis .text .dog {
  position: absolute;
  top: -30%;
  right: 0;
  width: 16%;
  z-index: 2;
  transition: all 0.3s;
}
.ctn_1 .synopsis .text .dog:hover {
  transform: scale(1.05);
}
.ctn_1 .synopsis .text .txt {
  width: 45%;
  margin-left: 50%;
  line-height: 2.2;
  color: #333;
  text-align: justify;
  padding-top: 4rem;
}
.ctn_1 .synopsis .text ul {
  width: 45%;
  margin-left: 50%;
  padding-bottom: 2rem;
  margin-top: 1rem;
  display: flex;
  justify-content: space-between;
}
.ctn_1 .synopsis .text ul li {
  color: #202a7b;
  text-align: center;
}
.ctn_2 {
  width: 100%;
}
.ctn_2 ul li {
  padding: 0.8% 3.5% 2%;
  margin-bottom: 1.5rem;
}
.ctn_2 ul li p {
  color: #202a7b;
}
.ctn_2 ul li p i {
  font-weight: bold;
  padding-right: 2%;
}
.ctn_2 ul li span {
  display: block;
  line-height: 1.8;
  margin-top: 0.5rem;
}
.ctn_2 ul li:nth-child(1n) {
  background: url(/repository/image/917fbd8f-564e-4169-b6aa-1e47eebcaf0f.png?t=1642410138510) top center no-repeat #dee4ea;
}
.ctn_2 ul li:nth-child(2n) {
  background: url(/repository/image/4524e2f5-1939-4b63-be0b-04b35dd340ec.png?t=1642410148200) top center no-repeat #e3ebe9;
}
.ctn_2 ul li:nth-child(3n) {
  background: url(/repository/image/16bcafa5-81e9-46ce-89e9-54ece524d542.png?t=1642410160017) top center no-repeat #e5e4e6;
}
.ctn_3 {
  overflow: hidden;
  padding: 1.5rem 0 6rem;
}
.ctn_3 .tit {
  text-align: center;
  font-weight: bold;
  color: #222;
}
.ctn_3 .mien {
  display: flex;
  justify-content: space-between;
  margin-top: 3rem;
}
.ctn_3 .mien img {
  transition: all 0.3s;
}
.ctn_3 .mien img:hover {
  transform: scale(1.05);
}
.ctn_3 .mien .m_l {
  width: 50%;
  overflow: hidden;
}
.ctn_3 .mien .m_r {
  width: 49.3%;
  overflow: hidden;
}
.ctn_3 .mien .m_r .m_t {
  width: 100%;
  overflow: hidden;
}
.ctn_3 .mien .m_r .m_b {
  display: flex;
  justify-content: space-between;
  margin-top: 0.9%;
  overflow: hidden;
}
.ctn_3 .mien .m_r .m_b .m_b_l {
  width: 49.15%;
  overflow: hidden;
}
.ctn_3 .mien .m_r .m_b .m_b_r {
  width: 49.15%;
  overflow: hidden;
}
@media screen and (max-width: 1366px) {
  .ctn_1 .synopsis .text .dog {
    top: -24%;
  }
}
@media screen and (max-width: 1200px) {
  .ctn_1 .synopsis .text .dog {
    top: -19%;
  }
}
@media screen and (max-width: 1024px) {
  .ctn_1 .sub_tit br {
    display: none;
  }
}
@media screen and (max-width: 900px) {
  .ctn_1 .synopsis .video_box {
    position: relative;
    left: 0;
    top: 0;
    width: 100%;
  }
  .ctn_1 .synopsis .text .txt {
    width: 100%;
    margin-left: 0;
    padding: 5% 4% 1%;
    margin-top: 70px;
  }
  .ctn_1 .synopsis .text ul {
    width: 100%;
    margin-left: 0;
    padding: 1% 4% 5%;
  }
  .ctn_1 .synopsis .text .dog {
    width: 130px;
  }
  .ctn_3 .mien {
    flex-wrap: wrap;
  }
  .ctn_3 .mien .m_l {
    width: 100%;
  }
  .ctn_3 .mien .m_r {
    width: 100%;
    margin-top: 1%;
  }
}