.mainvisual-section {
    margin-bottom: 80px;
}

.mainvisual-section__bg {
    width: 100%;
    height: 320px;
    background-image: url(../images/4news/news_mainvisual.jpg);
    background-position: 0 15%;
    background-repeat: no-repeat;
    background-size: cover;
}

.mainvisual-section__filter {
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .3);
    position: relative;
}

.mainvisual-section__filter h1 {
    width: 100%;
    position: absolute;
    z-index: 2;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    line-height: 3.0rem;
    color: #fff;
    font-size: 4.5rem;
    font-weight: 400;
}

@media(max-width:600px) {
    .mainvisual-section {
        margin-bottom: 40px;
    }
    .mainvisual-section__filter h1 {
        line-height: 2.4rem;
        font-size: 3.2rem;
    }
}

.article-section {
    width: 100%;
    max-width: 1080px;
    margin: 0 auto 160px;
}

.article__flex {
    display: flex;
    flex-wrap: nowrap;
    column-gap: 40px;
    justify-content: space-between;
    align-items: flex-start;
}

.article-wrapper__contents {
    margin: 0 auto;
    width: 100%;
    max-width: 720px;
}

.article-wrapper__category {
    margin: 0 auto;
    width: 100%;
    min-width: 140px;
    max-width: 280px;
}

.article-wrapper__sentence {
    margin-bottom: 40px;
}

.article-wrapper__contents h4,
.article-wrapper__contents p {
    text-align: left;
}

.article-wrapper__contents h4 {
    font-weight: 500;
    line-height: 1.5;
    display: inline-block;
    box-sizing: border-box;
    width: 100%;
    padding-bottom: 15px;
    border-bottom: #59423C 2px solid;
    margin-bottom: 30px;
}

.article-wrapper__contents h4 time {
    font-size: 1.6rem;
    font-weight: 400;
}

.article-wrapper__contents p {
    margin-bottom: 20px;
    text-align: justify;
}

.article-wrapper__sentence img {
    box-sizing: border-box;
    padding: 20px;
    width: 100%;
    height: auto;
}

.article-wrapper__category {
    text-align: left;
    position: sticky;
    top: 112px;
}

.article-wrapper__category h5 {
    font-size: 2.0rem;
    box-sizing: border-box;
    padding-bottom: 10px;
    border-bottom: #59423C 2px solid;
    margin-bottom: 10px;
}

.article-wrapper__category ul {
    list-style: none;
}

.article-wrapper__category ul li {
    box-sizing: border-box;
    padding-bottom: 10px;
    border-bottom: #59423C 1px dotted;
    margin-bottom: 10px;
}

.article-wrapper__category ul li:hover span {
    opacity: .5;
}

@media(max-width:1080px) {
    .article-section {
        width: 70vw;
        margin: 0 auto 160px;
    }
    .article__flex {
        flex-direction: column;
        row-gap: 80px;
    }
    .article-wrapper__category {
        position: static;
        width: 100%;
        max-width: initial;
    }
}

@media(max-width:600px) {
    .article-section {
        width: 100%;
        margin: 0 auto 100px;
        padding: 0 24px;
        box-sizing: border-box;
    }
    .article-wrapper__category {
        width: 100%;
        position: initial;
        max-width: initial;
        margin: initial;
    }
}