.ctn1 {
  position: relative;
  overflow: hidden;
  padding-bottom: 200px;
}
.ctn1 .top .tu {
  border-radius: 10px;
  overflow: hidden;
  position: relative;
}
.ctn1 .top .tu:before {
  content: '';
  display: block;
  padding-top: calc(658 / 1440 * 100%);
}
.ctn1 .top .tu img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  left: 0;
  top: 0;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn1 .top .tu:hover img {
  transform: scale(1.05);
  -webkit-transform: scale(1.05);
  -moz-transform: scale(1.05);
  -ms-transform: scale(1.05);
}
.ctn1 .middle {
  position: relative;
}
.ctn1 .middle .swiper-container {
  overflow: hidden;
}
.ctn1 .middle .swiper-slide {
  padding-top: 20px;
  border-top: 2px solid #000;
  color: #333;
}
.ctn1 .middle .swiper-slide h3 {
  color: #1A1C1C;
  opacity: 0.2;
}
.ctn1 .middle .swiper-slide h2 {
  color: #1A1C1C;
  margin: 14px 0 4px;
}
.ctn1 .middle .swiper-slide p {
  color: #666;
}
.ctn1 .middle .swiper-button-prev {
  width: 24px;
  height: 24px;
  position: absolute;
  left: -50px;
  top: 50%;
  transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
  -moz-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  margin-top: 0;
}
.ctn1 .middle .swiper-button-prev:after {
  content: '\e601';
  font-family: iconfont;
  font-size: 20px;
  color: #000;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  -moz-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn1 .middle .swiper-button-prev:hover:after {
  color: var(--color);
}
.ctn1 .middle .swiper-button-next {
  width: 24px;
  height: 24px;
  position: absolute;
  right: -50px;
  top: 50%;
  transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
  -moz-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  margin-top: 0;
}
.ctn1 .middle .swiper-button-next:after {
  content: '\e683';
  font-family: iconfont;
  font-size: 20px;
  color: #000;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  -moz-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn1 .middle .swiper-button-next:hover:after {
  color: var(--color);
}
.ctn1 .bottom {
  position: relative;
}
.ctn1 .bottom .left {
  width: 57.2%;
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  z-index: 2;
}
.ctn1 .bottom .left:before {
  content: '';
  display: block;
  padding-top: calc(470 / 824 * 100%);
}
.ctn1 .bottom .left img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  left: 0;
  top: 0;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn1 .bottom .left:hover img {
  transform: scale(1.05);
  -webkit-transform: scale(1.05);
  -moz-transform: scale(1.05);
  -ms-transform: scale(1.05);
}
.ctn1 .bottom .right {
  width: 45.5%;
  position: absolute;
  right: 0;
  top: 60px;
  background: #F8F9FB;
  border-radius: 10px;
  z-index: 1;
  padding: 40px 60px 80px 120px;
}
.ctn1 .bottom .right ul li {
  padding: 36px 0;
}
.ctn1 .bottom .right ul li h3 {
  color: var(--color);
}
.ctn1 .bottom .right ul li h2 {
  margin: 8px 0 14px;
}
.ctn1 .bottom .right ul li h2 a {
  color: #333;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn1 .bottom .right ul li h2 a:hover {
  color: var(--color);
}
.ctn1 .bottom .right ul li h4 {
  display: flex;
  align-items: center;
}
.ctn1 .bottom .right ul li h4 span {
  font-size: 16px;
  margin-right: 10px;
  color: #666666;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn1 .bottom .right ul li h4 em {
  color: #666666;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn1 .bottom .right ul li h4:hover span {
  color: var(--color);
}
.ctn1 .bottom .right ul li h4:hover em {
  color: var(--color);
}
.ctn1 .bottom .right ul li:not(:last-child) {
  border-bottom: 1px solid #e2e2e2;
}
@media screen and (max-width: 1680px) {
  .ctn1 {
    padding-bottom: 10vw;
  }
  .ctn1 .bottom .right {
    top: 3vw;
    padding: 2vw 3vw 4vw 6vw;
  }
  .ctn1 .bottom .right ul li {
    padding: 1.8vw 0;
  }
  .ctn1 .bottom .right ul li h4 span {
    font-size: 14px;
    margin-right: 6px;
  }
}
@media screen and (max-width: 1440px) {
  .ctn1 .middle {
    padding: 0 30px;
  }
  .ctn1 .middle .swiper-slide {
    padding-top: 14px;
  }
  .ctn1 .middle .swiper-slide h2 {
    margin: 10px 0 4px;
  }
  .ctn1 .middle .swiper-button-prev {
    left: -20px;
  }
  .ctn1 .middle .swiper-button-next {
    right: -20px;
  }
}
@media screen and (max-width: 1200px) {
  .ctn1 {
    padding-bottom: 12vw;
  }
}
@media screen and (max-width: 768px) {
  .ctn1 {
    padding-bottom: 12vw;
  }
  .ctn1 .middle {
    margin-top: 8vw;
  }
  .ctn1 .middle .swiper-button-prev {
    left: -10px;
  }
  .ctn1 .middle .swiper-button-next {
    right: -10px;
  }
  .ctn1 .bottom .left {
    width: 100%;
  }
  .ctn1 .bottom .right {
    position: relative;
    width: 100%;
    top: 0;
    margin-top: 20px;
    padding: 10px 20px;
  }
  .ctn1 .bottom .right ul li {
    padding: 20px 0;
  }
}