body{
    min-height: 100vh;
    display: flex;
    flex-direction: column;

}
.content-bc{
    background-repeat: no-repeat;
    background-size: 100% 100%;
    background-position: center;
    background-image: url(../images/authenticationBg.jpg);
}
.authentication_t{
    padding: 10vh 0 10vh 0;
    color: #fff;
}
.authentication_Ban_w{
    position: relative;
    padding-bottom: 4rem;
}
.swiper{
    width: 100vw;
    overflow: hidden;
    padding-bottom: 4rem;
}
.swiper-slide{
    background-color: #fff;
}
.authentication_Ban_text{
    /* width: 60vw; */
    padding: 2rem;
}
.authentication_Ban_text h3{
    font-size: 1.2rem;
}
.authentication_Ban_text h3 img{
    width: 2rem;
    height: 2rem;
    margin-right: 0.5rem;
}
.authentication_Ban_text p{
    display: block;
    padding-top: 0.5rem;
}
.authentication_Ban_text a{
    display: inline-block;
    font-size: 0.8rem;
    padding: 0.5rem;
    color: #fff;
    border-radius: 0.3rem;
    margin-top: 3rem;
    margin-bottom: 3rem;
}
.authentication_Ban_pic{
    width: 100%;
}
.authentication_Ban_pic img{
    width: 100%;
}
.authentication_Ban_prev{
    width: 2rem;
    height: 2rem;
    left: 18vw;
    background-color: #000;
    border: 0.2rem solid #fff;
}
.authentication_Ban_next{
    width: 2rem;
    height: 2rem;
    right: 18vw;
    background-color: #000;
    border: 0.2rem solid #fff;
}
.authentication_Ban_prev img, .authentication_Ban_next img{
    width: 1rem;
    height: 1rem;
}
.authentication_Ban_prev::after,.authentication_Ban_next::after{
    display: none;
}
.authentication_Ban_page{
    position: absolute;
    bottom: 1rem;
}
.authentication_Ban_page .swiper-pagination-bullet {
  background-color: #fff;
  opacity: 0.5;
}
.authentication_Ban_page .swiper-pagination-bullet-active {
  opacity: 1;
}
.authentication_Ban_page .swiper-pagination-bullet {
  width: 2rem;
  height: 2rem;
  margin: 0 1rem;
}
.footer{
    flex: 1;
}