@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 .product {
  display: flex;
  justify-content: space-between;
}
.ctn_1 .product .switch_dev {
  width: 45%;
}
.ctn_1 .product .switch_dev .product_img .swiper-button-next,
.ctn_1 .product .switch_dev .product_img .swiper-button-prev {
  background-size: 16px;
  padding: 2%;
  width: 44px;
  height: 44px;
  border-radius: 100%;
}
.ctn_1 .product .switch_dev .product_img .swiper-button-next:hover,
.ctn_1 .product .switch_dev .product_img .swiper-button-prev:hover {
  background-color: rgba(177, 152, 127, 0.5);
}
.ctn_1 .product .switch_dev .product_img .swiper-slide {
  padding-top: 100%;
  overflow: hidden;
}
.ctn_1 .product .switch_dev .product_img .swiper-slide img {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.ctn_1 .product .switch_dev .product_thumbnails .swiper-slide {
  padding-top: 21%;
  overflow: hidden;
  border: 5px solid #fff;
  transition: all 0.3s;
}
.ctn_1 .product .switch_dev .product_thumbnails .swiper-slide img {
  width: 102%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.ctn_1 .product .switch_dev .product_thumbnails .swiper-slide-thumb-active {
  border: 5px solid #b1987f;
}
.ctn_1 .product .details {
  width: 45%;
  padding: 3% 0;
}
.ctn_1 .product .details .tit {
  font-weight: bold;
  color: #333;
}
.ctn_1 .product .details .subtit {
  margin-top: 1%;
  color: #333;
}
.ctn_1 .product .details .describe {
  margin-top: 7%;
}
.ctn_1 .product .details .describe p {
  color: #333;
  font-weight: bold;
  display: block;
  margin-bottom: 2%;
}
.ctn_1 .product .details .describe span {
  color: #999;
  display: block;
  margin-bottom: 1.5%;
}
.ctn_1 .product .details .but {
  margin-top: 30%;
}
.ctn_1 .product .details .but a {
  padding: 0.9rem 3rem;
  border: 1px solid #b1987f;
  border-radius: 100px;
  background-color: #fff;
  display: inline-block;
  color: #b1987f;
  position: relative;
  overflow: hidden;
  transition: all 0.6s;
}
.ctn_1 .product .details .but a:hover {
  color: #fff;
  border-color: #b1987f;
}
.ctn_1 .product .details .but a .bgsqr1 {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  transform: rotate(360deg);
  border-style: solid;
  border-width: 0;
  border-top-color: transparent;
  border-right-color: transparent;
  border-bottom-color: transparent;
  border-left-color: #b1987f;
  position: absolute;
  bottom: 0;
  left: 0;
  -webkit-transition: all 0.6s;
  transition: all 0.6s;
}
.ctn_1 .product .details .but a .bgsqr2 {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  transform: rotate(360deg);
  border-style: solid;
  border-width: 0;
  border-left-color: transparent;
  border-right-color: transparent;
  border-bottom-color: transparent;
  border-top-color: #b1987f;
  position: absolute;
  top: 0;
  left: 0;
  -webkit-transition: all 0.6s;
  transition: all 0.6s;
}
.ctn_1 .product .details .but a .bgsqr3 {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  transform: rotate(360deg);
  border-style: solid;
  border-width: 0;
  border-left-color: transparent;
  border-top-color: transparent;
  border-bottom-color: transparent;
  border-right-color: #b1987f;
  position: absolute;
  top: 0;
  right: 0;
  -webkit-transition: all 0.6s;
  transition: all 0.6s;
}
.ctn_1 .product .details .but a .bgsqr4 {
  content: '';
  width: 0;
  height: 0;
  -webkit-transform: rotate(360deg);
  transform: rotate(360deg);
  border-style: solid;
  border-width: 0;
  border-left-color: transparent;
  border-right-color: transparent;
  border-top-color: transparent;
  border-bottom-color: #b1987f;
  position: absolute;
  bottom: 0;
  right: 0;
  -webkit-transition: all 0.6s;
  transition: all 0.6s;
}
.ctn_1 .product .details .but a:hover .bgsqr1 {
  border-width: 300px 0 0 300px;
}
.ctn_1 .product .details .but a:hover .bgsqr2 {
  border-width: 300px 300px 0 0;
}
.ctn_1 .product .details .but a:hover .bgsqr3 {
  border-width: 0 300px 300px 0;
}
.ctn_1 .product .details .but a:hover .bgsqr4 {
  border-width: 0 0 300px 300px;
}
.ctn_1 .product .details .but a span {
  position: relative;
  z-index: 1;
}
.ctn_2 {
  width: 100%;
  overflow: hidden;
  padding: 8.5% 0 2rem;
  background-position: top center;
  background-repeat: no-repeat;
}
.ctn_2 .tit {
  width: 100%;
  text-align: center;
  color: #fff;
  line-height: 1.7;
}
.ctn_2 .line {
  width: 20%;
  height: 1px;
  background-color: #fff;
  margin: 2% auto;
}
.ctn_2 .sub_tit {
  width: 100%;
  text-align: center;
  color: #fff;
}
.ctn_2 .img {
  margin-top: 10%;
}
@media screen and (max-width: 1366px) {
  .ctn_2 {
    background-size: 100%;
    padding: 6.5% 0 2rem;
  }
  .ctn_2 .img {
    margin-top: 6%;
  }
}
@media screen and (max-width: 768px) {
  .ctn_2 .w1440 {
    width: 100%;
  }
  .ctn_2 .tit {
    font-size: 14px;
  }
  .ctn_2 .sub_tit {
    font-size: 12px;
  }
  .ctn_1 .product {
    flex-wrap: wrap;
  }
  .ctn_1 .product .switch_dev {
    width: 100%;
  }
  .ctn_1 .product .details {
    width: 100%;
  }
  .ctn_1 .product .details .but {
    margin-top: 10%;
  }
}