.ctn1 {
  padding: 5vw 0 6vw;
  background: url(../img/about/bg5.jpg) no-repeat;
  background-size: cover;
  overflow: hidden;
}
.ctn1 .ctn-top .c-wrapper {
  margin-top: 3vw;
}
.ctn1 .ctn-top .c-wrapper ul {
  display: flex;
  justify-content: center;
}
.ctn1 .ctn-top .c-wrapper ul li {
  width: 180px;
  height: 36px;
  background: url(../img/about/btn7.png) no-repeat;
  background-size: 100% 100%;
  position: relative;
}
.ctn1 .ctn-top .c-wrapper ul li:before {
  content: '';
  width: 100%;
  height: 100%;
  background: url(../img/about/btn2.png) no-repeat;
  background-size: 100% 100%;
  position: absolute;
  left: 0;
  top: 0;
  opacity: 0;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn1 .ctn-top .c-wrapper ul li a {
  position: relative;
  display: block;
  color: #957b54;
  text-align: center;
  line-height: 36px;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn1 .ctn-top .c-wrapper ul li:not(:last-child) {
  margin-right: 20px;
}
.ctn1 .ctn-top .c-wrapper ul li.active:before {
  opacity: 1;
}
.ctn1 .ctn-top .c-wrapper ul li.active a {
  color: #fff;
}
.ctn1 .ctn-top .c-wrapper ul li:hover:before {
  opacity: 1;
}
.ctn1 .ctn-top .c-wrapper ul li:hover a {
  color: #fff;
}
.ctn1 .ctn-top .ctn-list {
  position: relative;
  margin-top: 6vw;
}
.ctn1 .ctn-top .ctn-list .swiper-slide {
  height: 370px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ctn1 .ctn-top .ctn-list .swiper-slide img {
  max-height: 100%;
  max-width: 60%;
}
.ctn1 .ctn-top .ctn-list .prev {
  position: absolute;
  width: 60px;
  height: 60px;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
  -moz-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  z-index: 10;
}
.ctn1 .ctn-top .ctn-list .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;
}
.ctn1 .ctn-top .ctn-list .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;
}
.ctn1 .ctn-top .ctn-list .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%);
}
.ctn1 .ctn-top .ctn-list .prev:hover:before {
  left: -10px;
  top: -10px;
  opacity: 1;
}
.ctn1 .ctn-top .ctn-list .next {
  position: absolute;
  width: 60px;
  height: 60px;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
  -moz-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  z-index: 10;
}
.ctn1 .ctn-top .ctn-list .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;
}
.ctn1 .ctn-top .ctn-list .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;
}
.ctn1 .ctn-top .ctn-list .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%);
}
.ctn1 .ctn-top .ctn-list .next:hover:before {
  right: -10px;
  bottom: -10px;
  opacity: 1;
}
.ctn1 .ctn-bottom {
  margin-top: 6vw;
}
.ctn1 .ctn-bottom .swiper {
  overflow: inherit;
}
.ctn1 .ctn-bottom .swiper-slide {
  width: 240px;
  padding: 1.2vw 1.2vw;
  background: #fff;
  cursor: pointer;
}
.ctn1 .ctn-bottom .swiper-slide .tu {
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ctn1 .ctn-bottom .swiper-slide .tu img {
  max-width: 100%;
  max-height: 100%;
}
.ctn1 .ctn-bottom .swiper-slide h2 {
  text-align: center;
  margin-top: 1vw;
}
.ctn1 .ctn-bottom .swiper-slide:hover .tu img {
  transform: scale(1.05);
  -webkit-transform: scale(1.05);
  -moz-transform: scale(1.05);
  -ms-transform: scale(1.05);
}
@media screen and (max-width: 1600px) {
  .ctn1 .ctn-top .ctn-list .swiper-slide {
    height: 320px;
  }
}
@media screen and (max-width: 1440px) {
  .ctn1 .ctn-top .ctn-list .swiper-slide {
    height: 300px;
  }
  .ctn1 .ctn-bottom .swiper-slide {
    width: 200px;
  }
  .ctn1 .ctn-bottom .swiper-slide .tu {
    height: 120px;
  }
}
@media screen and (max-width: 1200px) {
  .ctn1 .ctn-top .ctn-list .swiper-slide {
    height: 280px;
  }
  .ctn1 .ctn-top .ctn-list .prev {
    width: 50px;
    height: 50px;
  }
  .ctn1 .ctn-top .ctn-list .prev .swiper-button-prev:after {
    font-size: 20px;
  }
  .ctn1 .ctn-top .ctn-list .prev:hover:before {
    left: -6px;
    top: -6px;
  }
  .ctn1 .ctn-top .ctn-list .next {
    width: 50px;
    height: 50px;
  }
  .ctn1 .ctn-top .ctn-list .next .swiper-button-next:after {
    font-size: 20px;
  }
  .ctn1 .ctn-top .ctn-list .next:hover:before {
    right: -6px;
    bottom: -6px;
  }
}
@media screen and (max-width: 768px) {
  .ctn1 {
    padding: 40px 0;
  }
  .ctn1 .ctn-top .c-wrapper {
    margin-top: 30px;
  }
  .ctn1 .ctn-top .c-wrapper ul li {
    width: 120px;
    height: 34px;
  }
  .ctn1 .ctn-top .c-wrapper ul li a {
    line-height: 34px;
  }
  .ctn1 .ctn-top .c-wrapper ul li:not(:last-child) {
    margin-right: 10px;
  }
  .ctn1 .ctn-top .ctn-list {
    margin-top: 30px;
  }
  .ctn1 .ctn-top .ctn-list .swiper-slide {
    height: 180px;
  }
  .ctn1 .ctn-top .ctn-list .prev {
    width: 40px;
    height: 40px;
  }
  .ctn1 .ctn-top .ctn-list .prev .swiper-button-prev:after {
    font-size: 16px;
  }
  .ctn1 .ctn-top .ctn-list .prev:hover:before {
    left: -4px;
    top: -4px;
  }
  .ctn1 .ctn-top .ctn-list .next {
    width: 40px;
    height: 40px;
  }
  .ctn1 .ctn-top .ctn-list .next .swiper-button-next:after {
    font-size: 16px;
  }
  .ctn1 .ctn-top .ctn-list .next:hover:before {
    right: -4px;
    bottom: -4px;
  }
  .ctn1 .ctn-bottom {
    margin-top: 20px;
  }
  .ctn1 .ctn-bottom .swiper-slide {
    width: 170px;
    padding: 10px;
  }
  .ctn1 .ctn-bottom .swiper-slide .tu {
    height: 60px;
  }
  .ctn1 .ctn-bottom .swiper-slide h2 {
    font-size: 13px;
    margin-top: 4px;
  }
}