@charset "utf-8";

/* books
---------------------------------------------------- */
.books_img1 {
    max-width: 620px;
    width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}
.books_list {
    margin: 34px 0 0;
}

.books_list li {
    display: block;
    float: left;
    width: 23%;
    margin: 0 2.66% 12px 0;
}
.books_list li:nth-child(4n) {
    margin-right: 0;
}
/* 不要 ---------------------------------- */
.books_list li:nth-child(4n+1) {
    /* clear: both; */
}
/* ---------------------------------- */
.books_bnr1 {
    max-width: 466px;
    margin: 34px auto 0;
}

.books_bnr1 a:hover {
    opacity: 0.6;
}

@media screen and (max-width: 770px) {
    .books_list {
        margin: 30px 0 0;
    }

    .books_list li,
    .books_list li:nth-child(4n) {
        width: 32%;
        margin: 0 2% 14px 0;
    }
    .books_list li:nth-child(3n) {
        margin-right: 0;
    }
		/* 不要 ---------------------------------- */
    .books_list li:nth-child(4n+1) {
        /* clear: none; */
    }
    .books_list li:nth-child(3n+1) {
        clear: both;
    }
		/* ---------------------------------- */
    .books_bnr1 {
        margin: 30px auto 0;
    }
    .books_bnr1 a:hover {
        opacity: 1;
    }
}