.intro{
    max-width: 1200px;
    margin: 0 auto;
}
.intro .page-nav {
    font-size: 14px;
    font-weight: bold;
}
.intro .page-nav a {
    text-decoration: none;
    display: inline-block;
    margin-right: 40px;
    color: #000;
}
.intro .page-nav img {
    margin-left: 8px;
    vertical-align: middle;
    width: 11px;
    position: relative;
    top: -2px;
}
.intro p {
    line-height: 1.5;
}
.u-fs-12 {
    font-size: 12px;
}
.u-mt-15 {
    margin-top: 15px;
}
.u-mt-20 {
    margin-top: 20px;
}
.u-mt-30 {
    margin-top: 30px;
}
.u-mt-40 {
    margin-top: 40px;
}
@media screen and (min-width:741px) {
    .u-fs-16 {
        font-size: 16px;
    }
    .column2.column1, .column3.column1, .column2 {
        display: flex;
        flex-wrap: wrap;
        gap: 35px 30px;
    }
    .column2.column1 .genre_item_main:nth-child(-n + 2),
    .column3.column1 .genre_item_main:nth-child(-n + 3) {
        display: flex;
        flex-direction: column;
    }
    .column2.column1 .genre_item_main:nth-child(-n + 2),
    .column2 .genre_item_main {
        width: calc((100% - 30px) / 2);
    }
    .column3.column1 .genre_item_main:nth-child(-n + 3) {
        width: calc((100% - 30px * 2) / 3);
    }
    .column2.column1 .genre_item_main:nth-child(-n + 2) > *,
    .column3.column1 .genre_item_main:nth-child(-n + 3) > * {
        width: 100%;
        float: none;
    }
    .column2.column1 .genre_item_main:nth-child(3n),
    .column3.column1 .genre_item_main:nth-child(4n) {
        width: 100%;
    }
    .column2.column1 .genre_item_main:nth-child(-n + 2) .genre_item_detail,
    .column2 .genre_item_main .genre_item_detail,
    .column3.column1 .genre_item_main:nth-child(-n + 3) .genre_item_detail {
        flex: 1;
        display: flex;
        flex-direction: column;
    }
    .column2.column1 .genre_item_main:nth-child(-n + 2) .genre_item_detail .text,
    .column2 .genre_item_main .genre_item_detail .text,
    .column3.column1 .genre_item_main:nth-child(-n + 3) .genre_item_detail .text {
        flex: 1;
        font-size: 12px;
        letter-spacing: .07em;
        line-height: 1.58333;
    }
}
@media screen and (max-width:740px) {
    .l-free-inner {
        margin: 0 auto;
        width: 94%;
    }
    .u-fs-16 {
        font-size: 13px;
    }
    .intro .page-nav {
        display: flex;
        flex-wrap: wrap;
        gap: 15px;
        font-size: 11px;
    }
    .intro .page-nav a {
        margin-right: 0;
        display: flex;
        flex-direction: row-reverse;
        align-items: center;
        gap: 5px;
    }
    .intro .page-nav img {
        margin-left: 0;
        width: 10px;
        top: 2px;
    }
}