.right_end {
    font-size: 0.3rem;
}

p {
    margin: 0;
}

body {
    max-width: 7.5rem;
    margin: auto;
    background-color: #FFFFFF;
}

.font_page_box {
    margin: auto;
    width: 100%;
}

.font_page_title {
    padding: 0.22rem;
    margin: auto;
    margin-bottom: 0.18rem;
    color: #393939;
}

.font_page_pre_title {
    margin-bottom: 0.2rem;
    font-size: 0.32rem;
}
.font_page_title_title{
    font-size: 0.4rem;
    margin-bottom: 0.15rem;
}
.font_page_sub_title {
    margin-bottom: 0.1rem;
    line-height: 0.45rem;
    font-size: 0.32rem;
    color: #666;
}
.date_of_the_manuscript{
    color: #999;
    font-size: 0.28rem;
    margin-top: 0.19rem;
    display: block;
}
.font_page_data_box{
    padding: 0.22rem;
    padding-top: 0.15rem;
}
.font_page_data_p{
    font-size: 0.36rem;
    line-height: 0.54rem;
    letter-spacing: 0.03rem;
    margin-bottom: 0.2rem;
    text-align: justify;
    color: #3b3b3b;
}
.font_page_img{
    width: 100%;
}
.font_page_img_box{
    margin: auto;
    margin-left: 0.22rem;
    margin-right: 0.22rem;
}
.font_page_img_text_describe{
    color: #999;
    font-size: 0.26rem;
    text-align: center;
    margin-bottom: 0.3rem;
    display: block;
}
.bottom_btn_box{
    position: fixed;
    width: 100%;
    bottom: 0.4rem;
}
.bottom_btn_icon{
    width: 0.4rem;
    background-color: #DE002A;
    border-radius: 100px;
    padding: 0.1rem;
    margin-right: 0.4rem;
    float:right;
}

.bottom_btn_back{
    width: 0.4rem;
    background-color: #DE002A;
    border-radius: 50%;
    padding: 0.1rem;
    margin-left: 0.4rem;
    float:left;
}