.sec_news {
    margin: 78px 0 0 0;
    background: linear-gradient(to bottom, #c4d3e6 0%, rgba(196, 211, 230, 0.3) 100%, rgba(234, 240, 246, 0) 100%);
    position: relative;
}

.sec_news::before {
    content: '';
    width: 100%;
    height: 100%;
    position: absolute;
    background-image: url(../img/news/bg_cloud.png);
    background-size: 822px auto;
    background-position: 108% -4%;
    background-repeat: no-repeat;
    z-index: 0;
    pointer-events: none;
}

@media screen and (max-width: 900px) {
    .sec_news {
        margin: 60px 0 0 0;
        padding-bottom: 14.2vw;
    }

    .sec_news::before {
        content: none;
    }
}

.inner_news {
    width: 90%;
    max-width: 1260px;
    margin: 0px auto;
    padding: 70px 0 71px 0;

}

.inner_news h2 {
    max-width: 1126px;
    margin: 0 auto 2.7%;
}

.inner_news h2 img {
    max-width: 204px;
}

.inner_news h2 span {
    display: block;
    font-weight: 600;
    font-size: 15px;
    margin: 0 0 0 0;
}

.flex_news {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    max-width: 1126px;
    margin: 0 auto;
}

.inner_news .left {
    width: 25%;
    position: sticky;
    z-index: 10;
    line-height: 1.8;
    top: 17%;
}

/*左項目*/
.navi_news {
    list-style: none;
    padding: 0 0;
    margin: 0;
    position: relative;
}

.navi_news::before {
    position: absolute;
    content: '';
    height: 102%;
    width: 2px;
    background-image: linear-gradient(to bottom, #e60020 64%, #000000 36%);
    top: 0;
    left: 0%;
}

.navi_news>li {
    margin-bottom: 29px;
    padding-left: 30px;
    font-weight: bold;
    font-size: 18px;
}

.navi_news>li:nth-child(2) {
    margin-bottom: 35px;
}


.navi_news>li>span {
    position: relative;
}

.navi_news>li>span::before {
    content: "";
    margin-right: 5px;
    background-color: #000;
    position: absolute;
    top: calc(1em - 4px);
    left: -1em;
    width: 8px;
    height: 2px;
}

.navi_news>li.red>span::before {
    background-color: #e60012;
    line-height: 1.4;
}

.navi_news>li>span>a {
    color: #000;
    cursor: pointer;
}


.navi_news>li.red>span>a {
    color: #e60012;
}


.navi_news>li>ul {
    list-style: none;
    padding: 0;
    margin: 2px 0 0 0;
}

.navi_news>li>ul>li {
    font-size: 15px;
    margin-bottom: 10px;
    font-weight: 500;
}

.navi_news>li>ul>li>a {
    color: #000;
}

.navi_news>li.red {
    color: #e60012;
    position: relative;
}




/*左項目おわり*/

.inner_news .under {
    text-decoration: underline;
    color: #000;
}

.inner_news .red {
    color: #e60020;
}


/*右項目News内容*/

.col_news {
    width: 75%;
    max-width: 783px;
    padding-bottom: 6.1%;
    background-color: #fff;
}

.box_news {
    padding: 7.2% 6.7% 0;
}

.news_item {
    border-bottom: 1px solid #969696;
}

.news_item:first-child {
    border-top: 1px solid #969696;
}

.news_item a {
    display: flex;
    align-items: flex-start;
    padding: 4% 0 3.1% 2.9%;
    text-decoration: none;
    color: #000;
}

.news_date {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-family: "Inter", sans-serif;
}

.year_month {
    font-size: 15px;
    font-weight: bold;
}

.day {
    font-size: 48px;
    font-weight: bold;
    line-height: 1;
}

.news_content {
    flex: 1;
    padding: 0 0 0 7.4%;
}

.category {
    display: inline-block;
    color: #fff;
    padding: 2px 12px;
    font-size: 12px;
    margin-bottom: 10px;
}

.label_black {
    background-color: #000;
}

.label_red {
    background-color: #e60012;
}



.news_content .title {
    margin: 0;
}

.news_icon {
    width: 22px;
    height: 22px;
    border: 2px solid #e60012;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    align-self: center;
    box-sizing: border-box;
}

.news_icon span {
    color: #e60012;
    font-weight: bold;
    font-size: 15px;
}

.news_item a:hover .news_icon span {
    animation: arrow-slide 1s linear infinite;
}

@keyframes arrow-slide {

    0% {
        transform: translateX(0);
    }

    30% {
        transform: translateX(40px);
    }

    31% {
        transform: translateX(-40px);
    }

    100% {
        transform: translateX(0);
    }
}


/*右項目News内容おわり*/
.pagination {
    margin-top: 5.7%;
    display: flex;
    justify-content: center;
    font-family: "Inter", sans-serif;

}

.pager_list {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
    align-items: center;
    gap: 30px;
}

.pager_list li a {
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: #000;
    font-size: 18px;
    width: 35px;
    height: 35px;
    transition: all 0.3s;
}

.pager_list li.current a {
    border: 2px solid #e60012;
    color: #e60012;
}

.pager_list li.next a {
    color: #e60012;
    font-size: 18px;
}

.pager_list li a:hover {
    opacity: 0.7;
}


@media screen and (max-width: 740px) {

    .inner_news {
        padding: 7.5% 0 0 0;
        margin: 0px auto 0;
    }

    .inner_news h2 {
        margin: 0 auto 6.8%;
    }

    .inner_news h2 img {
        max-width: 258px;
        width: 35vw;
    }

    .inner_news h2 span {
        font-size: min(3.8vw, 28px);
    }

    .flex_news {
        flex-direction: column;
    }

    .inner_news .left {
        width: 100%;
        position: static;
        padding: 0 0 0% 0;
        margin: 0 0 9.8% 0;
        border-bottom: none;
    }

    .navi_news {
        display: flex;
        gap: 3.85vw;
        justify-content: center;
        align-items: baseline;
    }

    .navi_news::before {
        content: none;
    }

    .navi_news>li {
        margin-bottom: 0%;
        padding-left: 0%;
        font-size: min(4.1vw, 30px);
        width: 33%;
        text-align: center;
        background-color: #000;
        color: #fff;
        max-width: 198px;
        margin: 0 auto;
    }

    .navi_news>li:nth-child(2) {
        margin-bottom: 0;
    }

    .navi_news>li.red {
        background-color: #e60020;
        color: #fff;
    }

    .navi_news>li>span::before {
        content: none;
    }

    .navi_news>li>span>a,
    .navi_news>li.red>span>a {
        color: #fff;
    }

    .navi_news>li>span>a:hover {
        text-decoration: none;
    }



    /*右側コンテンツ*/
    .col_news {
        width: 100%;
        margin: 0 auto;
        padding-bottom: 11.3%;
    }

    .box_news {
        padding: 9.8% 3.7% 0;
    }

    .news_content {
        flex: 1;
        padding: 0 0 0 6.4%;
    }

    .year_month {
        font-size: min(3.8vw, 28px);
    }

    .day {
        font-size: min(11.2vw, 82px);
    }

    .category {
        padding: 0px 9px 1px 8px;
        font-size: min(3.3vw, 24px);
        margin-bottom: 2.4vw;
    }

    .news_content .title {
        margin: 0;
        font-size: min(4vw, 30px);
        line-height: 1.6;
    }

    .news_item a {
        padding: 8.1% 0 7.9% 2.9%;
    }


    .news_icon {
        width: 6vw;
        height: 6vw;
        border: 2px solid #e60012;
        overflow: hidden;
    }

    .news_icon span {
        font-size: 3.5vw;
        font-weight: 400;
    }

    .pager_list li a {
        font-size: min(4.1vw, 30px);
        width: 7.9vw;
        height: 7.9vw;
        transition: all 0.3s;
    }

    .pager_list li.next a {
        font-size: min(4.1vw, 30px);
    }
}






/*詳細ページ*/

.news_detail {
    display: flex;
    padding-bottom: 6%;
    border-bottom: 1px solid #969696;
    margin-bottom: 7%;
}

.inner_detail {
    padding: 8% 4.1% 0;
}

.detail .news_date {
    padding-left: 4.3%;
}

.detail_year_month {
    font-size: 20px;
    font-weight: bold;
}

.detail_day {
    font-size: 70px;
    font-weight: bold;
    line-height: 1;
}

.detail .news_content {
    flex: 1;
    padding: 0 0 0 6%;
}


.detail_category {
    display: inline-block;
    color: #fff;
    padding: 2px 12px;
    font-size: 15px;
    margin-bottom: 10px;
}

.detail_title {
    font-size: 25px;
    font-weight: 500;
}


.honbun {
    padding: 0 2%;
    overflow-wrap: anywhere;
    line-height: 2;

        min-height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.honbun p {
    margin: 0 0 15px 0;
}


.btnarea {
    margin: 0 auto;
    text-align: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    max-height: 45px;
    background-color: #000;
    color: #fff;
    position: relative;
    box-sizing: border-box;
    text-decoration: none;
    border: 1px solid #fff;
    transition: background-color 0.3s;
    padding: 0.75em 0 0.75em 20px;
    justify-content: center;
    min-width: auto;
    width: min(18vw, 182px);
    font-weight: 600;
    border: 1px solid #000;
}

.btn::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 3.5%;
    width: 6px;
    height: 6px;
    border-top: 2px solid #fff;
    border-left: 2px solid #fff;
    transform: translateY(-50%) rotate(-45deg);
    z-index: 2;
}

.btn::after {
    content: " ";
    position: absolute;
    top: 0;
    left: 0;
    width: 9.6%;
    height: 100%;
    background-color: #e50027;
    display: flex;
    align-items: center;
    justify-content: center;
}


.btn:hover {
    background-color: #fff;
    color: #000;
    text-decoration: none;
    border: 1px solid;
}

@media screen and (max-width: 740px) {

    .sec_detail .inner_news h2 {
        margin: 0 auto 8.6%;
    }

    .inner_detail {
        padding: 10% 4.1% 0%;
    }

    .col_news.detail {
        padding-bottom: 17%;
    }

    .detail_none {
        display: none;
    }

    .detail .news_content {
        flex: 1;
        padding: 0 0 0 5.5%;
    }

    .detail .news_date {
        padding-left: 1.6%;
    }

    .detail_year_month {
        font-size: min(3.8vw, 28px);
    }

    .detail_day {
        font-size: min(11.2vw, 82px);
    }

    .detail_category {
        padding: 2px 12px;
        font-size: min(3.34vw, 24px);
        margin-bottom: 10px;
    }

    .detail_title {
        font-size: min(4.6vw, 34px);
        font-weight: 500;
    }















    .btn {
        font-size: min(3.6vw, 26px);
        padding: 0.5em 2.2vw 0.5em 0;
        width: 35.8vw;
        max-height: 8.38vw;
    }

    .btn::before {
        line-height: 1;
        top: 51%;
        left: 3.2%;
        width: 1.5vw;
        height: 1.5vw;
    }

}