.prev {
  position: absolute;
  width: 60px;
  height: 60px;
  left: -100px;
  top: 170px;
  z-index: 10;
}
.prev:before {
  content: '';
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  background: url(../img/about/btn6.png);
  background-size: 100% 100%;
  opacity: 0;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.prev .swiper-button-prev {
  position: relative;
  width: 100%;
  height: 100%;
  background: url(../img/about/btn5.png);
  background-size: 100% 100%;
  margin-top: 0;
  top: 0;
  left: 0;
}
.prev .swiper-button-prev:after {
  content: '\e601';
  font-family: iconfont;
  font-size: 30px;
  color: #fff;
  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%);
}
.prev:hover:before {
  left: -10px;
  top: -10px;
  opacity: 1;
}
.next {
  position: absolute;
  width: 60px;
  height: 60px;
  left: -100px;
  top: 250px;
  z-index: 10;
}
.next:before {
  content: '';
  width: 100%;
  height: 100%;
  position: absolute;
  right: 0;
  bottom: 0;
  background: url(../img/about/btn4.png);
  background-size: 100% 100%;
  opacity: 0;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.next .swiper-button-next {
  position: relative;
  width: 100%;
  height: 100%;
  background: url(../img/about/btn3.png);
  background-size: 100% 100%;
  margin-top: 0;
  top: 0;
  right: 0;
}
.next .swiper-button-next:after {
  content: '\e683';
  font-family: iconfont;
  font-size: 30px;
  color: #fff;
  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%);
}
.next:hover:before {
  right: -10px;
  bottom: -10px;
  opacity: 1;
}
.ctn1 {
  position: relative;
  padding: 5vw 0 25vw;
  overflow: hidden;
}
.ctn1 .con {
  position: relative;
  z-index: 2;
}
.ctn1 .con .ctn-list {
  margin-top: 3vw;
  position: relative;
}
.ctn1 .con .ctn-list .yuan {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #957b54;
  position: absolute;
  left: -120px;
  top: 60px;
}
.ctn1 .con .ctn-list:before {
  content: '';
  width: 100%;
  height: 1px;
  border-bottom: 1px dashed #957b54;
  position: absolute;
  left: 0;
  top: 63px;
  z-index: 1;
}
.ctn1 .con .ctn-list:after {
  content: '';
  width: 120px;
  height: 1px;
  border-bottom: 1px dashed #957b54;
  position: absolute;
  left: -120px;
  top: 63px;
}
.ctn1 .con .ctn-list .swiper {
  position: relative;
  z-index: 2;
}
.ctn1 .con .ctn-list .swiper .swiper-slide .title {
  position: relative;
}
.ctn1 .con .ctn-list .swiper .swiper-slide .title:before {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid #957b54;
  background: #fff;
  position: absolute;
  bottom: -7px;
  left: 48%;
}
.ctn1 .con .ctn-list .swiper .swiper-slide .title:after {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid #957b54;
  background: #fff;
  position: absolute;
  bottom: -7px;
  left: 88%;
}
.ctn1 .con .ctn-list .swiper .swiper-slide .title h2 {
  display: inline-block;
  color: #957b54;
  font-weight: bold;
  padding-bottom: 20px;
  position: relative;
}
.ctn1 .con .ctn-list .swiper .swiper-slide .title h2:before {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #957b54;
  position: absolute;
  left: 50%;
  bottom: -4px;
  transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
  -moz-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
}
.ctn1 .con .ctn-list .swiper .swiper-slide .title h2:after {
  content: '';
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid #957b54;
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
  -moz-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
}
.ctn1 .con .ctn-list .swiper .swiper-slide .tu {
  margin-top: 2.5vw;
  overflow: hidden;
  height: 240px;
}
.ctn1 .con .ctn-list .swiper .swiper-slide .tu img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.ctn1 .con .ctn-list .swiper .swiper-slide .tu:hover img {
  transform: scale(1.05);
  -webkit-transform: scale(1.05);
  -moz-transform: scale(1.05);
  -ms-transform: scale(1.05);
}
.ctn1 .con .ctn-list .swiper .swiper-slide .text {
  color: #39312c;
  margin-top: 1vw;
}
.ctn1 .con .ctn-list .swiper .swiper-slide .text p {
  line-height: 1.6;
}
.ctn1 .con .ctn-list .swiper .swiper-slide .text p:not(:first-child) {
  margin-top: 4px;
}
.ctn1 .mask {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  z-index: 1;
}
.ctn1 .mask img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
@media screen and (max-width: 1600px) {
  .ctn1 .con .ctn-list .yuan {
    top: 58px;
  }
  .ctn1 .con .ctn-list:before {
    top: 61px;
  }
  .ctn1 .con .ctn-list:after {
    top: 61px;
  }
  .ctn1 .con .ctn-list .swiper .swiper-slide .tu {
    height: 14vw;
  }
}
@media screen and (max-width: 1440px) {
  .ctn1 .con .ctn-list .yuan {
    top: 52px;
  }
  .ctn1 .con .ctn-list:before {
    top: 55px;
  }
  .ctn1 .con .ctn-list:after {
    top: 55px;
  }
}
@media screen and (max-width: 1300px) {
  .ctn1 .con {
    left: 40px;
    width: calc(100% - 280px);
  }
}
@media screen and (max-width: 1200px) {
  .prev {
    width: 50px;
    height: 50px;
  }
  .prev .swiper-button-prev:after {
    font-size: 20px;
  }
  .prev:hover:before {
    left: -6px;
    top: -6px;
  }
  .next {
    width: 50px;
    height: 50px;
  }
  .next .swiper-button-next:after {
    font-size: 20px;
  }
  .next:hover:before {
    right: -6px;
    bottom: -6px;
  }
  .ctn1 .con .ctn-list:before {
    top: 51px;
  }
  .ctn1 .con .ctn-list:after {
    top: 51px;
  }
  .ctn1 .con .ctn-list .yuan {
    top: 47px;
  }
}
@media screen and (max-width: 1024px) {
  .ctn1 .con .ctn-list:before {
    top: 48px;
  }
  .ctn1 .con .ctn-list:after {
    top: 48px;
  }
  .ctn1 .con .ctn-list .yuan {
    top: 44px;
  }
}
@media screen and (max-width: 768px) {
  .prev {
    width: 40px;
    height: 40px;
    left: 30%;
    top: auto;
    bottom: -60px;
  }
  .prev .swiper-button-prev:after {
    font-size: 16px;
  }
  .prev:hover:before {
    left: -4px;
    top: -4px;
  }
  .next {
    width: 40px;
    height: 40px;
    left: auto;
    right: 30%;
    top: auto;
    bottom: -60px;
  }
  .next .swiper-button-next:after {
    font-size: 16px;
  }
  .next:hover:before {
    right: -4px;
    bottom: -4px;
  }
  .ctn1 {
    padding: 40px 0 120px;
  }
  .ctn1 .con {
    left: 0;
    width: 90%;
  }
  .ctn1 .con .ctn-list {
    margin-top: 30px;
  }
  .ctn1 .con .ctn-list:before {
    top: 45px;
  }
  .ctn1 .con .ctn-list:after {
    display: none;
  }
  .ctn1 .con .ctn-list .yuan {
    display: none;
  }
  .ctn1 .con .ctn-list .swiper .swiper-slide .tu {
    height: auto;
    margin-top: 30px;
  }
  .ctn1 .con .ctn-list .swiper .swiper-slide .text {
    margin-top: 14px;
  }
}