img{
    display: flex;
}
.huaban{
    width: 100%;
    height: auto;
    position: relative;
}
.huaban_img_bj{
    width: 100%;
    height: auto;
}
.huaban_text_white{
    width: 100%;
    font-size: 0.35rem;
    color: #ffffff;
    text-align: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.huaban_text_blue{
    width: 100%;
    text-align: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -75%);
}
.huaban_text_blue p{
    font-size: 0.3rem;
    color: rgb(0,46,89);
}
.huaban_text_blue p:nth-child(1){
    font-size: 1.2rem;
    color: rgb(0,46,89);
    font-weight: bold;
}
.zidingyi{
    width: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}
.swiper-button-prev:after,.swiper-button-next:after{
    display: none;
}
.ex_btn_flexs{
    width: 12rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0.1rem auto 0;
}
.ex_btn_flexs img{
    width: 0.35rem;
    height: auto;
}
.ex_btn_flex_ds{
    padding: 0.07rem 0.1rem;
    background-color: rgb(0,46,89);
    color: rgb(255,198,0);
    border-radius: 5px;
    font-size: 0.18rem;
    font-weight: bold;
}
.ex_header{
    width: 100%;
}
.ex_header_img{
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0.2rem 0 0.1rem;
}
.ex_header_img img{
    width: 3rem;
    height: auto;
}
.exhibition{
    width: 100%;
}
.class_introduce_teacher{
    width: 2.07rem;
    background-color: rgb(0,46,89);
    padding: 0.05rem;
    margin: 0.1rem auto;
}
.class_introduce_teacher img{
    width: 2.07rem;
    height: 2.74rem;
    background-color: rgb(255,255,255);
}
.class_introduce_teacher div{
    width: 100%;
    font-size: 0.12rem;
    color: rgb(254,198,1);
    font-weight: bold;
    text-align: center;
    padding: 0.05rem 0;
    background-color: rgb(22,60,81);
}
.class_introduce_teacher div:nth-child(3){
    background-color: rgb(12,47,84);
}
.class_introduce_teachers{
    width: 2.1rem;
    background-color: rgb(0,46,89);
    padding: 0.1rem 0.06rem;
    margin: 0.15rem auto 0;
}
.class_introduce_teachers_title{
    font-size: 0.14rem;
    color: rgb(254,198,1);
    font-weight: bold;
    margin-bottom: 0.05rem;
    text-align: center;
}
.class_introduce_right{
    width: 2.5rem;
}
.class_jieshao_content img{
    max-width: 100%;
}