#swiper {
  width: 100%;
  height: calc(100vw / 3);
}
#swiper .s_chunk {
  width: 100%;
  height: 100%;
}
#swiper .s_chunk .s_chunk_img {
  width: 100%;
  height: 100%;
}
#advantage {
  background: #F5F6F7;
  width: 100%;
  display: flex;
  justify-content: center;
  position: relative;
}
#advantage .advantage_content {
  width: 1200px;
  text-align: center;
  height: calc(calc(1200px / 3) * 2 / 3 + 235px);
}
#advantage .advantage_content .advantage_title {
  width: 447px;
  padding: 100px 0 50px 0;
  display: inline-block;
}
#advantage .advantage_content .advantage_desc {
  background: #fff;
  position: absolute;
  width: 1200px;
  top: 235px;
  box-shadow: 0px 0px 29px 0px #c5c5c5;
}
#advantage .advantage_content .advantage_desc .advantage_desc_top {
  display: flex;
  width: 100%;
}
#advantage .advantage_content .advantage_desc .advantage_desc_top_border {
  border-bottom: 1px solid #F3F4F5;
}
#advantage .advantage_content .advantage_desc .advantage_desc_chunk {
  flex: 1;
  height: calc(calc(1200px / 3) * 2 / 3);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
#advantage .advantage_content .advantage_desc .advantage_desc_chunk .advantage_desc_chunk_icon {
  width: 100px;
  height: 100px;
  margin-bottom: 30px;
  transition: all 1s linear;
}
#advantage .advantage_content .advantage_desc .advantage_desc_chunk .advantage_desc_chunk_txt {
  font-size: 24px;
  color: #383F45;
  transition: all 1s linear;
}
#advantage .advantage_content .advantage_desc .advantage_desc_chunk:hover .advantage_desc_chunk_icon {
  transform: scale(1.2, 1.2);
}
#advantage .advantage_content .advantage_desc .advantage_desc_chunk:hover .advantage_desc_chunk_txt {
  transform: scale(1.2, 1.2);
}
#advantage .advantage_content .advantage_desc .advantage_desc_chunk_border {
  border-left: 1px solid #F3F4F5;
  border-right: 1px solid #F3F4F5;
}
#business {
  background: #fff;
  padding-top: calc(calc(1200px / 3) * 2 / 3);
  background: url(../img/business.png) no-repeat;
  background-size: 100% 100%;
  display: flex;
  justify-content: center;
}
#business .business_con {
  width: 1200px;
  text-align: center;
}
#business .business_con .business_con_title {
  width: 447px;
  display: inline-block;
  padding: 100px 0 50px 0;
}
#business .business_con .business_con_desc {
  width: 678px;
  padding-bottom: 20px;
}
#exhibition {
  background: #F8F9FA;
  display: flex;
  justify-content: center;
}
#exhibition .c_con {
  width: 1200px;
  text-align: center;
}
#exhibition .c_con .c_con_title {
  width: 447px;
  display: inline-block;
  padding: 80px 0 50px 0;
}
#exhibition .c_con .c_con_btm_more {
  width: 160px;
  padding-bottom: 20px;
}
#more {
  background: #F8F9FA;
  display: flex;
  justify-content: center;
  padding-bottom: 80px;
}
#more .m_con {
  width: 1200px;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
}
#more .m_con .m_con_btn {
  background: blue;
  font-weight: 100;
  padding: 8px 16px;
  font-size: 14px;
  color: #fff;
  border-radius: 4px;
  margin: 10px 0;
  background: linear-gradient(to bottom right, #2f43fd, #788cff);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 1s linear;
  animation: hoverScale 3s linear infinite;
  user-select: none;
}
#more .m_con .m_con_btn .m_con_btn_img {
  width: 14px;
  height: 14px;
  margin-left: 4px;
}
@keyframes hoverScale {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  50% {
    transform: scale(1.1);
  }
}