@charset "UTF-8";

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	under__title
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
.under__title{
    margin-top: 144.18px;
    height: 152px;
    background-image: url(/wordpress/wp-content/themes/u-gaku__theme/images/under-page/under__midashi.png);
    background-size: cover;
    background-position: center;
    position: relative;
}
.under__title h1{
    width: 100%;
    padding: 0 20px;
    text-align: center;
    position: absolute;
    top: 50%;
    left: 50%;;
    transform: translate(-50%, -50%);
    font-family: 'Helvetica Neue';
    font-weight: 700;
    font-size: 24px;
    line-height: 1.5;
    color: #fff;
}

@media only screen and (max-width: 768px) {
    .under__title{
        margin-top: 110px;
        height: 88px;
    }
    .under__title h1{
        font-size: 18px;
    }
}

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	under__title--v2 (新デザイン：テキストのみ)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
.under__title--v2 {
    max-width: 800px;
    padding: 0 24px;
    margin: 0 auto 24px;
}
.under__title--v2 h1 {
    font-family: "Noto Sans JP", sans-serif;
    font-weight: 700;
    font-size: 28px;
    line-height: 1.5;
    color: #222;
}

@media only screen and (max-width: 768px) {
    .under__title--v2 {
        padding: 0 20px;
        margin: 0 auto 20px;
    }
    .under__title--v2 h1 {
        font-size: 22px;
    }
}

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	under__meta (更新日・シェア)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
.under__meta {
    max-width: 800px;
    padding: 0 24px;
    margin: 0 auto 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.under__meta-date {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 13px;
    font-weight: 400;
    color: #888;
}
.under__meta-date .material-symbols-outlined {
    font-size: 16px;
    color: #888;
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 20;
}
.under__meta-share {
    display: flex;
    align-items: center;
    gap: 6px;
    background: #fff;
    border: 1px solid #E0E0E0;
    border-radius: 20px;
    padding: 6px 16px;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 13px;
    font-weight: 500;
    color: #666;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}
.under__meta-share:hover {
    background: #F5F5F5;
    border-color: #CCC;
}
.under__meta-share .material-symbols-outlined {
    font-size: 16px;
    color: #0085FF;
    font-variation-settings: 'FILL' 0, 'wght' 500, 'GRAD' 0, 'opsz' 20;
}

@media only screen and (max-width: 768px) {
    .under__meta {
        padding: 0 20px;
        margin: 0 auto 20px;
    }
    .under__meta-date {
        font-size: 12px;
    }
    .under__meta-share {
        font-size: 12px;
        padding: 5px 12px;
    }
}

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	under__thumbnail (サムネイル画像)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
.under__thumbnail {
    max-width: 800px;
    padding: 0 24px;
    margin: 0 auto 40px;
}
.under__thumbnail img {
    width: 100%;
    height: auto;
    max-height: 490px;
    object-fit: cover;
    border-radius: 8px;
}

@media only screen and (max-width: 768px) {
    .under__thumbnail {
        padding: 0 20px;
        margin: 0 auto 32px;
    }
    .under__thumbnail img {
        max-height: 300px;
        border-radius: 4px;
    }
}

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	under__breadcrumb
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
.under__breadcrumb{
    max-width: 647px;
    max-width: 647px;
	padding: 40px 0;
    margin: 0 auto;
}
.under__breadcrumb.wide{
    max-width: 1025px;
    padding: 40px 24px;
}
.under__breadcrumb ul{
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0;
    row-gap: 4px;
}
.under__breadcrumb li{
    display: inline-flex;
    align-items: center;
    color: #666;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 13px;
    font-weight: 400;
    line-height: 1.5;
}
.under__breadcrumb li a{
    color: #0085FF;
    text-decoration: none;
}
.under__breadcrumb li a:hover{
    text-decoration: underline;
}
/* Material Symbols アイコンスタイル */
.under__breadcrumb .material-symbols-outlined {
    font-size: 16px;
    vertical-align: middle;
    margin-right: 2px;
    color: #0085FF;
    font-variation-settings: 'FILL' 1, 'wght' 500, 'GRAD' 0, 'opsz' 20;
}
/* 区切り文字「▶」 */
.under__breadcrumb li + li::before{
    content: "▶";
    color: #BDBDBD;
    font-size: 8px;
    margin: 0 10px;
 }

@media only screen and (max-width: 768px) {
    .under__breadcrumb{
        max-width: 100%;
        padding: 16px 20px 12px;
    }
    .under__breadcrumb.wide{
        max-width: 100%;
        padding: 16px 20px 12px;
    }
    .under__breadcrumb ul{
        row-gap: 4px;
    }
    .under__breadcrumb li{
        font-size: 12px;
    }
    .under__breadcrumb li + li::before{
        font-size: 7px;
        margin: 0 8px;
    }
}

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	under__link
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
.under__link{
	max-width: 647px;
	padding: 40px 0;
    margin: 0 auto;
}
.under__link p{
    font-size: 16px;
    line-height: 2;
    text-align: center;
}
.under__link a{
    color: #0085FF;
    border-bottom: 1px #0085FF solid;
}
.under__link.white a{
    color: #fff;
    border-bottom: 1px #fff solid;
}
.under__link a:hover{
	-webkit-animation-duration: 1s;
	-webkit-animation-name: flash;
	animation-duration: 1s;
	animation-name: flash;
}
@keyframes flash {
	0% {
		opacity: 0.3;
	}
	100% {
		opacity: 1;
	}
}

@media only screen and (max-width: 768px) {
    .under__link{
        max-width: 100%;
		padding: 40px 20px;
    }
    .under__link p{
        font-size: 12px;
    }
}

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	under__content
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
.under__content{
	max-width: 800px;
	padding: 40px 24px;
    margin: 0 auto;
    font-family: "Noto Sans JP", sans-serif;
    color: #222;
}

/* 見出し h2（青背景） */
.under__content h2{
    background: #0085FF;
    padding: 16px 24px;
    font-family: "Noto Sans JP", sans-serif;
    font-weight: 700;
    font-size: 20px;
    line-height: 1.4;
    color: #fff;
    margin-top: 48px;
    margin-bottom: 16px;
}
.under__content h2:first-child{
    margin-top: 0;
}

/* 小見出し h3（青テキスト+左線） */
.under__content h3{
    padding-left: 12px;
    border-left: 2px solid #0085FF;
    font-family: "Noto Sans JP", sans-serif;
    font-weight: 700;
    font-size: 18px;
    line-height: 1.5;
    color: #0085FF;
    margin-top: 32px;
    margin-bottom: 8px;
}

/* h4 */
.under__content h4{
    font-family: "Noto Sans JP", sans-serif;
    font-weight: 700;
    font-size: 16px;
    line-height: 1.5;
    color: #222;
    margin-top: 24px;
    margin-bottom: 4px;
}

/* h5 */
.under__content h5{
    font-family: "Noto Sans JP", sans-serif;
    font-weight: 700;
    font-size: 15px;
    line-height: 1.6;
    color: #222;
    margin-top: 16px;
    margin-bottom: 4px;
}

/* h6 */
.under__content h6{
    font-family: "Noto Sans JP", sans-serif;
    font-weight: 600;
    font-size: 14px;
    line-height: 1.6;
    color: #222;
    margin-top: 8px;
    margin-bottom: 4px;
}

/* 本文 p */
.under__content p{
    font-family: "Noto Sans JP", sans-serif;
    font-size: 16px;
    font-weight: 400;
    line-height: 2.0;
    color: #222;
    margin-top: 0;
    margin-bottom: 32px;
}

/* 強調 strong */
.under__content strong{
    font-weight: 600;
}

/* 斜体強調 em */
.under__content em{
    font-weight: 600;
    font-style: normal;
}

/* リード文（導入用） */
.under__content .lead{
    font-size: 17px;
    line-height: 1.8;
    margin-bottom: 24px;
}

/* 小さいテキスト */
.under__content small,
.under__content .small{
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 8px;
}

/* リンク a */
.under__content a{
    color: #0085FF;
    text-decoration: none;
    border-bottom: 1px solid #0085FF;
}
.under__content a:hover{
    opacity: 0.7;
}

/* ul リスト */
.under__content ul{
    font-family: "Noto Sans JP", sans-serif;
    font-size: 16px;
    font-weight: 400;
    line-height: 1.7;
    color: #222;
    padding-left: 24px;
    margin-top: 0;
    margin-bottom: 16px;
    list-style: disc;
    list-style-position: outside;
}
.under__content ul li{
    margin-bottom: 4px;
}
.under__content ul li::marker{
    color: #0085FF;
}

/* ol リスト */
.under__content ol{
    font-family: "Noto Sans JP", sans-serif;
    font-size: 16px;
    font-weight: 400;
    line-height: 1.7;
    color: #222;
    padding-left: 24px;
    margin-top: 0;
    margin-bottom: 16px;
    list-style: decimal;
    list-style-position: outside;
}
.under__content ol li{
    margin-bottom: 4px;
}
.under__content ol li::marker{
    color: #0085FF;
    font-weight: 600;
  }

.under__content figure{
    margin-bottom: 32px;
}
.under__content figure img{
    width: 100%;
    height: auto;
    border-radius: 16px;
}
@keyframes flash {
	0% {
		opacity: 0.3;
	}
	100% {
		opacity: 1;
	}
}
.under__content iframe{
    width: 100%;
}
/* 引用 blockquote */
.under__content blockquote{
    font-family: "Noto Sans JP", sans-serif;
    font-size: 15px;
    font-weight: 400;
    line-height: 1.7;
    color: #222;
    padding: 16px;
    padding-left: 20px;
    margin-top: 24px;
    margin-bottom: 24px;
    border-left: 3px solid #BDBDBD;
    background: transparent;
}
.under__content blockquote p{
    margin-bottom: 0;
}
.under__content blockquote p:last-of-type{
    margin-bottom: 0;
}
/* 引用元 cite */
.under__content blockquote cite,
.under__content cite{
    display: block;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 13px;
    font-weight: 400;
    line-height: 1.7;
    font-style: normal;
    color: #666;
    margin-top: 8px;
}
.under__content blockquote cite::before,
.under__content cite::before{
    content: "— ";
}

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	タイムライン (timeline)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
.under__content .timeline{
    list-style: none;
    padding: 0;
    margin: 24px 0 40px;
}
.under__content .timeline__item{
    position: relative;
    padding-left: 32px;
    padding-bottom: 32px;
    border-left: 2px solid #E0E0E0;
    margin-left: 8px;
}
.under__content .timeline__item:last-child{
    border-left: 2px solid transparent;
    padding-bottom: 0;
}
.under__content .timeline__item::before{
    content: "";
    position: absolute;
    left: -9px;
    top: 0;
    width: 16px;
    height: 16px;
    background: #0085FF;
    border-radius: 50%;
    box-shadow: 0 0 0 4px #fff, 0 0 0 5px #E0E0E0;
}
.under__content .timeline__item:last-child::before{
    box-shadow: 0 0 0 4px #fff;
}
.under__content .timeline__step{
    display: inline-block;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 12px;
    font-weight: 600;
    color: #0085FF;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}
.under__content .timeline__title{
    font-family: "Noto Sans JP", sans-serif;
    font-size: 18px;
    font-weight: 700;
    color: #222;
    line-height: 1.4;
    margin: 0 0 8px;
}
.under__content .timeline__desc{
    font-family: "Noto Sans JP", sans-serif;
    font-size: 15px;
    font-weight: 400;
    color: #555;
    line-height: 1.7;
    margin: 0;
}
.under__content .timeline__image{
    margin-top: 16px;
    border-radius: 12px;
    overflow: hidden;
    background: #E8F4FD;
}
.under__content .timeline__image img{
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
}

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	ふきだし (speech-bubble)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
.under__content .speech{
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin: 24px 0;
}
.under__content .speech--right{
    flex-direction: row-reverse;
}
.under__content .speech__person{
    flex-shrink: 0;
    text-align: center;
    width: 64px;
}
.under__content .speech__avatar{
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    background: #F0F0F0;
}
.under__content .speech__name{
    font-family: "Noto Sans JP", sans-serif;
    font-size: 11px;
    font-weight: 500;
    color: #666;
    margin-top: 6px;
    line-height: 1.3;
}
.under__content .speech__bubble{
    position: relative;
    max-width: 70%;
    padding: 16px 20px;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 15px;
    line-height: 1.7;
    color: #333;
    background: #F5F5F5;
    border-radius: 16px;
    margin-top: 8px;
}
/* 左向き三角（左側の人用：グレー背景） */
.under__content .speech__bubble::before{
    content: "";
    position: absolute;
    left: -8px;
    top: 16px;
    border: 8px solid transparent;
    border-right: 10px solid #F5F5F5;
    border-left: 0;
}
/* 右側の人用：薄いブルー背景 */
.under__content .speech--right .speech__bubble{
    background: #E8F4FD;
}
.under__content .speech--right .speech__bubble::before{
    left: auto;
    right: -8px;
    border-right: 0;
    border-left: 10px solid #E8F4FD;
}

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	CVブロック (cv-block)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
.under__content .cv-block{
    background: #F8F8F8;
    border-radius: 16px;
    padding: 40px 32px;
    margin: 40px 0;
    text-align: center;
}
.under__content .cv-block__title{
    font-family: "Noto Sans JP", sans-serif;
    font-size: 20px;
    font-weight: 700;
    color: #222;
    line-height: 1.6;
    margin: 0 0 24px;
}
.under__content .cv-block__image{
    margin: 0 auto 24px;
    max-width: 320px;
}
.under__content .cv-block__image img{
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}
.under__content .cv-block__text{
    font-family: "Noto Sans JP", sans-serif;
    font-size: 15px;
    font-weight: 400;
    color: #444;
    line-height: 1.8;
    text-align: left;
    margin: 0 0 32px;
}
.under__content .cv-block__text .highlight{
    color: #0085FF;
    font-weight: 500;
}
.under__content .cv-block__btn{
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: linear-gradient(135deg, #0085FF 0%, #0070E0 100%);
    color: #fff;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 18px;
    font-weight: 700;
    text-decoration: none;
    padding: 20px 48px;
    border-radius: 50px;
    box-shadow: 0 4px 16px rgba(0, 133, 255, 0.4);
    transition: all 0.3s ease;
    min-width: 280px;
}
.under__content .cv-block__btn:hover{
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(0, 133, 255, 0.5);
    opacity: 1;
}
.under__content .cv-block__btn::before{
    content: "→";
    font-size: 20px;
}

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	著者・監修者 (author-box)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
/* 共通スタイル */
.under__content .author-box{
    background: linear-gradient(135deg, #E8F4FD 0%, #F0F8FF 100%);
    border-radius: 16px;
    padding: 32px;
    margin: 40px 0;
    position: relative;
}
.under__content .author-box__label{
    position: absolute;
    top: -12px;
    left: 24px;
    background: #B4E0FA;
    color: #0085FF;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 20px;
}
.under__content .author-box__header{
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
    margin-top: 8px;
}
.under__content .author-box__avatar,
.under__content .author-box__header img,
.under__content .author-box__header .avatar{
    width: 72px;
    height: 72px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}
.under__content .author-box__info{
    flex: 1;
}
.under__content .author-box__name{
    font-family: "Noto Sans JP", sans-serif;
    font-size: 18px;
    font-weight: 700;
    color: #0085FF;
    margin: 0 0 4px;
    line-height: 1.4;
}
.under__content .author-box__title{
    font-family: "Noto Sans JP", sans-serif;
    font-size: 13px;
    font-weight: 500;
    color: #666;
    margin: 0;
    line-height: 1.4;
}
.under__content .author-box__bio{
    font-family: "Noto Sans JP", sans-serif;
    font-size: 14px;
    font-weight: 400;
    color: #333;
    line-height: 1.8;
    margin: 0 0 16px;
}
.under__content .author-box__links{
    display: flex;
    gap: 12px;
}
.under__content .author-box__link{
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    text-decoration: none;
    color: #0085FF;
    font-size: 11px;
    font-weight: 500;
    border: none;
}
.under__content .author-box__link-icon{
    width: 40px;
    height: 40px;
    border: 2px solid #0085FF;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: all 0.2s ease;
}
.under__content .author-box__link:hover .author-box__link-icon{
    background: #0085FF;
    color: #fff;
}

/* 記事冒頭用（コンパクト：縦組み） */
.under__content .author-box--compact{
    padding: 28px 24px 24px;
    margin-top: 48px;
}
.under__content .author-box--compact:first-child{
    margin-top: 0;
}
.under__content .author-box--compact .author-box__header{
    margin-top: 8px;
    margin-bottom: 0;
}
.under__content .author-box--compact .author-box__avatar,
.under__content .author-box--compact .author-box__header img,
.under__content .author-box--compact .author-box__header .avatar{
    width: 56px;
    height: 56px;
}
.under__content .author-box--compact .author-box__name{
    font-size: 16px;
    margin-bottom: 2px;
}
.under__content .author-box--compact .author-box__title{
    font-size: 12px;
}

/* 記事終わり用（フル表示） - デフォルト */

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	アコーディオン (accordion)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
.under__content .accordion{
    margin: 24px 0;
}
.under__content .accordion__item{
    border-bottom: 1px solid #E0E0E0;
}
.under__content .accordion__item:first-child{
    border-top: 1px solid #E0E0E0;
}
.under__content .accordion__header{
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 8px;
    cursor: pointer;
    background: transparent;
    transition: background 0.2s ease;
}
.under__content .accordion__header:hover{
    background: #F8F8F8;
}
.under__content .accordion__title{
    font-family: "Noto Sans JP", sans-serif;
    font-size: 15px;
    font-weight: 500;
    color: #333;
    margin: 0;
    flex: 1;
    padding-right: 16px;
}
.under__content .accordion__icon{
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
    font-size: 20px;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}
.under__content .accordion__item.is-open .accordion__icon{
    transform: rotate(180deg);
}
.under__content .accordion__body{
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}
.under__content .accordion__item.is-open .accordion__body{
    max-height: 1000px;
}
.under__content .accordion__content{
    padding: 0 8px 20px;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 14px;
    font-weight: 400;
    color: #555;
    line-height: 1.8;
}
.under__content .accordion__content p{
    margin: 0 0 12px;
    font-size: 14px;
}
.under__content .accordion__content p:last-child{
    margin-bottom: 0;
}

/* カード風スタイル（オプション） */
.under__content .accordion--card .accordion__item{
    border: 1px solid #E0E0E0;
    border-radius: 8px;
    margin-bottom: 12px;
    overflow: hidden;
}
.under__content .accordion--card .accordion__item:first-child{
    border-top: 1px solid #E0E0E0;
}
.under__content .accordion--card .accordion__header{
    padding: 16px 20px;
    background: #FAFAFA;
}
.under__content .accordion--card .accordion__item.is-open .accordion__header{
    background: #F0F7FF;
}
.under__content .accordion--card .accordion__content{
    padding: 16px 20px 20px;
    background: #fff;
}

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	サイドナビ (sidenav)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
.under__wrapper{
    display: flex;
    max-width: 1025px;
    margin: 0 auto;
    padding: 0 24px;
    gap: 40px;
    margin-top: 144px;
}
.under__main{
    flex: 1;
    min-width: 0;
    max-width: 800px;
}
/* 2ペイン内のコンポーネントはmax-width解除 */
.under__main .under__breadcrumb,
.under__main .under__title--v2,
.under__main .under__meta,
.under__main .under__thumbnail,
.under__main .under__content{
    max-width: none;
    padding-left: 0;
    padding-right: 0;
    margin-left: 0;
    margin-right: 0;
}
.under__main .under__breadcrumb{
    margin-top: 0;
}
.under__sidenav{
    width: 260px;
    flex-shrink: 0;
    padding-top: 40px;
}

/* サイドナビ内の目次スタイル（メインコンテンツ内とは別スタイル） */
.under__sidenav .toc{
    position: sticky;
    top: 160px;
    max-height: calc(100vh - 200px);
    overflow-y: auto;
    padding: 16px 20px;
    background: #F8FBFF;
    border-radius: 8px;
    border: 1px solid #E0E8F0;
    margin: 0;
    max-width: none;
    width: auto;
    gap: 12px;
}
.under__sidenav .toc__title{
    font-family: "Noto Sans JP", sans-serif;
    font-size: 15px;
    font-weight: 700;
    color: #333;
    margin: 0 0 12px;
    padding-bottom: 10px;
    border-bottom: 2px solid #0085FF;
}
.under__sidenav .toc__list{
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: none;
}
.under__sidenav .toc__section{
    margin-bottom: 2px;
}
.under__sidenav .toc__section-title{
    display: block;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.5;
    color: #333;
    padding: 0;
    margin: 0;
}
.under__sidenav .toc__section-title::before{
    content: none;
}
.under__sidenav .toc__section-title a{
    color: inherit;
    text-decoration: none;
    display: block;
    padding: 8px 10px;
    border-radius: 6px;
    transition: all 0.2s ease;
}
.under__sidenav .toc__section-title a:hover{
    color: #0085FF;
    background: #EAF3FF;
}
/* アクティブ状態 */
.under__sidenav .toc__section.is-active > .toc__section-title a{
    background: #E0EFFF;
    color: #0085FF;
}
.under__sidenav .toc__sublist{
    list-style: none;
    margin: 0;
    padding: 0 0 0 12px;
}
.under__sidenav .toc__sublist li{
    padding: 0;
    border-top: none;
    border-bottom: none;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 13px;
    font-weight: 400;
    line-height: 1.5;
    color: #666;
}
.under__sidenav .toc__sublist li:last-child{
    border-bottom: none;
}
.under__sidenav .toc__sublist li a{
    color: inherit;
    text-decoration: none;
    display: block;
    padding: 6px 10px;
    border-radius: 4px;
    transition: all 0.2s ease;
}
.under__sidenav .toc__sublist li a:hover{
    color: #0085FF;
    background: #EAF3FF;
}
.under__sidenav .toc__sublist li.is-active a{
    background: #E0EFFF;
    color: #0085FF;
}

/* 旧sidenav用（互換性のため残す） */
.sidenav{
    position: sticky;
    top: 160px;
    max-height: calc(100vh - 200px);
    overflow-y: auto;
    padding: 20px;
    background: #F8FAFB;
    border-radius: 12px;
    border: 1px solid #E8E8E8;
}
.sidenav__title{
    font-family: "Noto Sans JP", sans-serif;
    font-size: 13px;
    font-weight: 700;
    color: #333;
    margin: 0 0 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid #0085FF;
}
.sidenav__list{
    list-style: none;
    padding: 0;
    margin: 0;
}
.sidenav__item{
    margin-bottom: 4px;
}
.sidenav__link{
    display: block;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 13px;
    font-weight: 400;
    color: #555;
    text-decoration: none;
    padding: 8px 12px;
    border-radius: 6px;
    border-left: 3px solid transparent;
    transition: all 0.2s ease;
    line-height: 1.4;
}
.sidenav__link:hover{
    background: #E8F4FD;
    color: #0085FF;
}
.sidenav__link.is-active{
    background: #E8F4FD;
    color: #0085FF;
    border-left-color: #0085FF;
    font-weight: 500;
}
/* サブ項目 */
.sidenav__sublist{
    list-style: none;
    padding: 0 0 0 12px;
    margin: 4px 0 8px;
}
.sidenav__subitem{
    margin-bottom: 2px;
}
.sidenav__sublink{
    display: block;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 12px;
    font-weight: 400;
    color: #777;
    text-decoration: none;
    padding: 6px 10px;
    border-radius: 4px;
    transition: all 0.2s ease;
}
.sidenav__sublink:hover{
    color: #0085FF;
    background: #F0F7FF;
}

@media only screen and (max-width: 1024px) {
    .under__wrapper{
        display: block;
        padding: 0;
        margin-top: 110px;
    }
    .under__sidenav{
        display: none;
    }
    .under__main .under__breadcrumb,
    .under__main .under__title--v2,
    .under__main .under__meta,
    .under__main .under__thumbnail{
        padding-left: 20px;
        padding-right: 20px;
    }
    .under__main .under__content{
        padding: 40px 20px;
    }
}

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	強調ボックス (alert-box)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
.under__content .alert-box{
    padding: 20px 24px;
    margin: 24px 0;
    border-radius: 8px;
    border-left: 4px solid;
}
.under__content .alert-box__title{
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 15px;
    font-weight: 700;
    margin: 0 0 12px;
    padding-bottom: 10px;
    border-bottom: 2px dashed;
}
.under__content .alert-box__title .material-symbols-outlined{
    font-size: 20px;
    font-variation-settings: 'FILL' 1, 'wght' 500, 'GRAD' 0, 'opsz' 20;
}
.under__content .alert-box__content{
    font-family: "Noto Sans JP", sans-serif;
    font-size: 14px;
    font-weight: 400;
    line-height: 1.8;
    margin: 0;
}
.under__content .alert-box__content ul{
    margin: 8px 0 0;
    padding-left: 20px;
}
.under__content .alert-box__content li{
    margin-bottom: 4px;
}

/* ポイント（オレンジ/黄色） */
.under__content .alert-box--point{
    background: #FFF8E6;
    border-left-color: #F5A623;
}
.under__content .alert-box--point .alert-box__title{
    color: #E08A00;
    border-bottom-color: #F5C56340;
}
.under__content .alert-box--point .alert-box__content{
    color: #5C4A1F;
}
.under__content .alert-box--point .alert-box__content li::marker{
    color: #F5A623;
}

/* メモ（青） */
.under__content .alert-box--memo{
    background: #F0F7FF;
    border-left-color: #0085FF;
}
.under__content .alert-box--memo .alert-box__title{
    color: #0070D6;
    border-bottom-color: #0085FF40;
}
.under__content .alert-box--memo .alert-box__content{
    color: #1A3A5C;
}

/* 注意（赤） */
.under__content .alert-box--warning{
    background: #FFF5F5;
    border-left-color: #E53935;
}
.under__content .alert-box--warning .alert-box__title{
    color: #D32F2F;
    border-bottom-color: #E5393540;
}
.under__content .alert-box--warning .alert-box__content{
    color: #5C1A1A;
}

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	記事下区切り線 (under__divider)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
.under__divider{
    border: none;
    border-top: 1px solid #E0E0E0;
    margin: 48px 0 32px;
}

/* テーブルラッパー（スクロール対応） */
.under__content .table-wrapper{
    max-width: 100%;
    max-height: 400px;
    overflow: auto;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    margin: 24px 0 32px;
    position: relative;
}
.under__content .table-wrapper::-webkit-scrollbar{
    width: 8px;
    height: 8px;
}
.under__content .table-wrapper::-webkit-scrollbar-track{
    background: #F0F0F0;
    border-radius: 4px;
}
.under__content .table-wrapper::-webkit-scrollbar-thumb{
    background: #C0C0C0;
    border-radius: 4px;
}
.under__content .table-wrapper::-webkit-scrollbar-thumb:hover{
    background: #A0A0A0;
}
.under__content .table-wrapper table{
    margin: 0;
    box-shadow: none;
    border-radius: 0;
    width: max-content;
    min-width: 100%;
}
/* ラッパーなしテーブルのmarginとshadow */
.under__content table{
    display: block;
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: #fff;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 15px;
    line-height: 1.6;
    border-radius: 12px;
    overflow: scroll;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    margin: 24px 0 32px;
}
.under__content table th,
.under__content table td{
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid #E8E8E8;
    white-space: nowrap;
}
/* セル内で折り返しが必要な場合 */
.under__content table.wrap-cell th,
.under__content table.wrap-cell td{
    white-space: normal;
    min-width: 120px;
}
.under__content table th{
    background: #0085FF;
    color: #fff;
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.02em;
}
/* スクロール時にヘッダー固定 */
.under__content .table-wrapper table thead th{
    position: sticky;
    top: 0;
    z-index: 10;
}
/* 縦型テーブルの左thも固定 */
.under__content .table-wrapper table.vertical th{
    position: sticky;
    left: 0;
    z-index: 5;
}
.under__content table thead th:first-child{
    border-top-left-radius: 12px;
}
.under__content table thead th:last-child{
    border-top-right-radius: 12px;
}
.under__content table tbody tr:last-child td{
    border-bottom: none;
}
.under__content table tbody tr:last-child td:first-child{
    border-bottom-left-radius: 12px;
}
.under__content table tbody tr:last-child td:last-child{
    border-bottom-right-radius: 12px;
}
.under__content table tbody tr:nth-child(even){
    background: #F8FAFC;
}
.under__content table tbody tr:hover{
    background: #EEF6FF;
    transition: background 0.2s ease;
}
.under__content table td{
    color: #333;
}
/* 縦型テーブル（左側がth） */
.under__content table.vertical th{
    background: #F0F7FF;
    color: #0085FF;
    font-weight: 600;
    min-width: 120px;
    width: 25%;
}
.under__content table.vertical td{
    background: #fff;
}

@media only screen and (max-width: 768px) {
    .under__content{
        max-width: 100%;
		padding: 40px 20px;
    }
    /* SP: 見出し h2 */
    .under__content h2{
        font-size: 20px;
        padding: 12px 20px;
        margin-top: 48px;
        margin-bottom: 16px;
    }
    /* SP: 小見出し h3 */
    .under__content h3{
        font-size: 18px;
        margin-top: 32px;
        margin-bottom: 8px;
    }
    /* SP: h4 */
    .under__content h4{
        font-size: 16px;
        margin-top: 24px;
        margin-bottom: 4px;
    }
    /* SP: h5 */
    .under__content h5{
        font-size: 15px;
        margin-top: 16px;
        margin-bottom: 4px;
    }
    /* SP: h6 */
    .under__content h6{
        font-size: 14px;
        margin-top: 8px;
        margin-bottom: 4px;
    }
    /* SP: 本文 p */
    .under__content p{
        font-size: 15px;
        line-height: 2.0;
        margin-bottom: 24px;
    }
    /* SP: ul/ol */
    .under__content ul,
    .under__content ol{
        font-size: 15px;
    }
    .under__content ul li,
    .under__content ol li{
        margin-bottom: 4px;
    }
    .under__content figure{
        margin-bottom: 24px;
    }
    .under__content figure img{
        border-radius: 12px;
    }
    .under__content .table-wrapper{
        max-height: 300px;
        border-radius: 8px;
    }
    .under__content table{
        font-size: 13px;
        border-radius: 8px;
    }
    .under__content table th,
    .under__content table td{
        padding: 12px 14px;
        white-space: nowrap;
    }
    .under__content table thead th:first-child{
        border-top-left-radius: 8px;
    }
    .under__content table thead th:last-child{
        border-top-right-radius: 8px;
    }
    .under__content table tbody tr:last-child td:first-child{
        border-bottom-left-radius: 8px;
    }
    .under__content table tbody tr:last-child td:last-child{
        border-bottom-right-radius: 8px;
    }
    .under__content table.vertical th{
        min-width: 90px;
        width: 30%;
    }
    /* SP: タイムライン */
    .under__content .timeline__item{
        padding-left: 24px;
        padding-bottom: 24px;
    }
    .under__content .timeline__item::before{
        width: 14px;
        height: 14px;
        left: -8px;
    }
    .under__content .timeline__title{
        font-size: 16px;
    }
    .under__content .timeline__desc{
        font-size: 14px;
    }
    .under__content .timeline__image{
        border-radius: 8px;
    }
    .under__content .timeline__image img{
        border-radius: 8px;
    }
    /* SP: ふきだし */
    .under__content .speech{
        gap: 12px;
    }
    .under__content .speech__person{
        width: 48px;
    }
    .under__content .speech__avatar{
        width: 48px;
        height: 48px;
    }
    .under__content .speech__name{
        font-size: 10px;
    }
    .under__content .speech__bubble{
        max-width: 75%;
        padding: 12px 16px;
        font-size: 14px;
        border-radius: 12px;
    }
    /* SP: アコーディオン */
    .under__content .accordion__header{
        padding: 14px 4px;
    }
    .under__content .accordion__title{
        font-size: 14px;
    }
    .under__content .accordion__content{
        padding: 0 4px 16px;
        font-size: 13px;
    }
    .under__content .accordion--card .accordion__header{
        padding: 14px 16px;
    }
    .under__content .accordion--card .accordion__content{
        padding: 14px 16px 16px;
    }
    /* SP: CVブロック */
    .under__content .cv-block{
        padding: 32px 20px;
        border-radius: 12px;
        margin: 32px 0;
    }
    .under__content .cv-block__title{
        font-size: 18px;
        margin-bottom: 20px;
    }
    .under__content .cv-block__image{
        max-width: 100%;
        margin-bottom: 20px;
    }
    .under__content .cv-block__image img{
        border-radius: 8px;
    }
    .under__content .cv-block__text{
        font-size: 14px;
        margin-bottom: 24px;
    }
    .under__content .cv-block__btn{
        font-size: 16px;
        padding: 16px 32px;
        min-width: auto;
        width: 100%;
        border-radius: 40px;
    }
    /* SP: 著者・監修者 */
    .under__content .author-box{
        padding: 24px 20px;
        border-radius: 12px;
    }
    .under__content .author-box__label{
        font-size: 12px;
        padding: 5px 12px;
        top: -10px;
        left: 16px;
    }
    .under__content .author-box__header{
        gap: 12px;
    }
    .under__content .author-box__avatar,
    .under__content .author-box__header img,
    .under__content .author-box__header .avatar{
        width: 56px;
        height: 56px;
    }
    .under__content .author-box__name{
        font-size: 16px;
    }
    .under__content .author-box__title{
        font-size: 12px;
    }
    .under__content .author-box__bio{
        font-size: 13px;
        line-height: 1.7;
    }
    .under__content .author-box__link-icon{
        width: 36px;
        height: 36px;
        font-size: 18px;
    }
    /* SP: コンパクト版 */
    .under__content .author-box--compact{
        padding: 24px 20px 20px;
        margin-top: 40px;
    }
    .under__content .author-box--compact:first-child{
        margin-top: 0;
    }
    .under__content .author-box--compact .author-box__header{
        margin-top: 6px;
    }
    .under__content .author-box--compact .author-box__avatar,
    .under__content .author-box--compact .author-box__header img,
    .under__content .author-box--compact .author-box__header .avatar{
        width: 48px;
        height: 48px;
    }
    .under__content .author-box--compact .author-box__name{
        font-size: 15px;
    }
}

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	flex
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
.under__content .is-layout-flex{
    display: flex;
    justify-content: space-between;
    flex-wrap: nowrap;
    align-items: start;
}
.under__content .is-layout-flex p{
    margin-bottom: 24px;
}
.under__content .is-layout-flex figure{
    margin-bottom: 40px;
}

.under__content .is-layout-flex > div{
	max-width: 315px;
	width: 48.837209302%;    
}
.under__content .is-layout-flex.flex2 > div{
	max-width: 315px;
	width: 48.837209302%;    
}
.under__content .is-layout-flex.flex3 > div{
	max-width: 315px;
	width: 32.241555783%;
}
.under__content .is-layout-flex.flex4 > div{
	max-width: 232px;
	width: 23.746161719%;
}

@media only screen and (max-width: 1024px) {
	.under__content .is-layout-flex.flex3 > div {
		max-width: 100%;
		width: 48.686244204%;
	}
	.under__content .is-layout-flex.flex3 > div:nth-of-type(3) {
		margin: 40px auto 0;
	}
	.under__content .is-layout-flex.flex4 {
		max-width: 100%;
		width: 48.686244204%;
		margin-bottom: 32px;
	}
}

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	info
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
.info__inner{
	max-width: 647px;
	padding: 40px 0;
    margin: 0 auto;
}
.info__inner--box{
    margin-bottom: 20px;
}
.info__inner--box--item{
    display: block;
    padding: 16px 0;
    border-top: 1px solid #727272;
}
.info__inner--box--item:last-of-type{
    border-bottom: 1px solid #727272;
}
.info__inner--box--item p{
    color: #0085FF;
    font-family: 'Helvetica Neue';
    font-size: 14px;
    font-weight: 500;
    line-height: 1.5;
    margin-bottom: 8px;
}
.info__inner--box--item h2{
    font-size: 16px;
    font-weight: 500;
    line-height: 1.5;
}

@media only screen and (max-width: 768px) {
    .info__inner{
        max-width: 100%;
		padding: 40px 20px;
    }
}

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	目次 (Table of Contents)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
.toc {
    display: flex;
    width: 100%;
    max-width: 800px;
    padding: 24px 24px 32px;
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
    border-radius: 8px;
    background: #E6EAF0;
    margin: 0 auto 40px;
}
.toc__title {
    color: #0085FF;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 20px;
    font-weight: 700;
    line-height: 150%;
    margin: 0;
}
.toc__list {
    list-style: none;
    width: 100%;
    margin: 0;
    padding: 0;
    counter-reset: toc-section;
}
.toc__section {
    margin-bottom: 16px;
}
.toc__section:last-child {
    margin-bottom: 0;
}
.toc__section-title {
    display: block;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 16px;
    font-weight: 700;
    line-height: 150%;
    color: #222;
    margin-bottom: 8px;
    counter-increment: toc-section;
}
.toc__section-title::before {
    content: counter(toc-section) ". ";
}
.toc__section-title a {
    color: inherit;
    text-decoration: none;
    border-bottom: none;
}
.toc__section-title a:hover {
    color: #0085FF;
}
.toc__sublist {
    list-style: none;
    margin: 0;
    padding: 0;
}
.toc__sublist li {
    padding: 12px 16px;
    border-top: 1px solid #D9D9D9;
    font-family: "Noto Sans JP", sans-serif;
    font-size: 14px;
    font-weight: 400;
    line-height: 150%;
    color: #666;
}
.toc__sublist li:last-child {
    border-bottom: 1px solid #D9D9D9;
}
.toc__sublist li a {
    color: inherit;
    text-decoration: none;
}
.toc__sublist li a:hover {
    color: #0085FF;
}

/* .under__content内に配置する場合 */
.under__content .toc {
    margin-bottom: 40px;
}

/* 目次内のh2を記事本文スタイルから除外 */
.under__content .toc .toc__title {
    background: none;
    padding: 0;
    color: #0085FF;
    font-size: 20px;
    font-weight: 700;
    line-height: 150%;
    margin: 0;
    border-radius: 0;
    border-left: none;
}

/* 目次内のol/liを記事本文スタイルから除外 */
.under__content .toc .toc__list {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: toc-section;
}

.under__content .toc .toc__section {
    margin-bottom: 16px;
}

.under__content .toc .toc__section:last-child {
    margin-bottom: 0;
}

.under__content .toc .toc__section-title {
    display: block;
    font-size: 16px;
    font-weight: 700;
    line-height: 150%;
    color: #222;
    margin-bottom: 8px;
    padding: 0;
    background: none;
    border-left: none;
    counter-increment: toc-section;
}

.under__content .toc .toc__section-title::before {
    content: counter(toc-section) ". ";
}

.under__content .toc .toc__list li::marker {
    content: none;
}

.under__content .toc .toc__sublist {
    list-style: none;
    padding: 0;
    margin: 0;
}

.under__content .toc .toc__sublist li {
    padding: 12px 16px;
    border-top: 1px solid #D9D9D9;
    font-size: 14px;
    font-weight: 400;
    line-height: 150%;
    color: #666;
    margin-bottom: 0;
}

.under__content .toc .toc__sublist li:last-child {
    border-bottom: 1px solid #D9D9D9;
}

.under__content .toc .toc__sublist li::marker {
    content: none;
}

.under__content .toc .toc__sublist li a {
    color: inherit;
    text-decoration: none;
    border-bottom: none;
}

.under__content .toc .toc__sublist li a:hover {
    color: #0085FF;
}

@media only screen and (max-width: 768px) {
    .toc {
        padding: 20px 16px 24px;
        gap: 16px;
        border-radius: 4px;
    }
    .toc__title {
        font-size: 18px;
    }
    .toc__section-title {
        font-size: 14px;
    }
    .toc__sublist li {
        padding: 10px 12px;
        font-size: 12px;
    }
}