.gallery_box {
    width: 1200px;
    margin: 0 auto;
    padding: 20px 0;
    box-sizing: border-box;
    justify-content: space-between;
    position: relative;
}
.galleryClass{}
.galleryClassTitle {
    width: 100px;
    background: #D00A15;
    color: #fff;
    line-height: 50px;
    text-align: center;
    font-size: 18px;
    font-weight: 700;
}

.galleryClassTitle_unlimited {
    cursor: pointer;
    width: 100px;
    background: #FF9CA1;
    color: #333;
    line-height: 50px;
    text-align: center;
    font-size: 18px;
    font-weight: normal;
}

.classContent {
    justify-content: space-between;
}

.gallery_letter {
    /* width: 49%; */
}

.gallery_letter:nth-child(1) {
    border-right: 1px solid #FF9CA1;
}

.gallery_letter li {
    width: 49px;
    line-height: 50px;
    text-align: center;
    color: #fff;
    background: #D93B44;
    font-size: 18px;
    border-bottom: 1px solid #FF9CA1;
    cursor: pointer;
}

.gallery_letter a {
    color: #fff;
    font-size: 18px;
    padding: 12px 17px;
}

.gallery_letter li:last-child {
    border: 0;
}

.gallery_letter:nth-child(1) li {
    width: 50px;
}

.gallery_ct {
    width: 1050px;
    flex-wrap: wrap;
}

.gallery_intro_box {
    width: 240px;
    text-align: center;
    margin-right: 20px;
}
.gallery_intro_box:nth-child(4n){
    margin: 0;
}
.gallery_intro_box p{
    color: #333;
    font-size: 18px;
    margin-top: 10px;
}

.gallery_intro_box a{
    font-size: 18px;
}