/* =========================================================
   TOP PAGE
========================================================= */

.hero {
    width: 100%;
    overflow: hidden;
}

.hero-inner {
    width: min(960px, 100%);
    margin: 0 auto;
}

.intro {
    padding: 60px 0 40px;
}

.top-category {
    padding: 36px 0;
    border-top: 1px solid #ddd;
}

.top-category h2 a {
    text-decoration: none;
}

.top-category h2 a:hover {
    text-decoration: underline;
}


/* =========================================================
   TOP PAGE SITE MAP
========================================================= */

.site-map {
    padding: 50px 0 70px;
}

.site-map-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.site-map-column h2 {
    margin: 0 0 15px;
    padding: 10px 15px;
    color: white;
    font-size: 20px;
    font-weight: bold;
    border-radius: 8px;
}


/* Company Info */

.site-map-company h2 {
    background: repeating-linear-gradient(
        135deg,
        #B28A32 0,
        #B28A32 6px,
        #C09B4B 6px,
        #C09B4B 12px
    );
}


/* Business Activity */

.site-map-business h2 {
    background: repeating-linear-gradient(
        135deg,
        #3486B8 0,
        #3486B8 6px,
        #4894C2 6px,
        #4894C2 12px
    );
}


/* Research Institute */

.site-map-research h2 {
    background: repeating-linear-gradient(
        135deg,
        #5B9965 0,
        #5B9965 6px,
        #6DA576 6px,
        #6DA576 12px
    );
}

.site-map-column ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.site-map-column li {
    position: relative;
    border-top: 1px solid #ddd;
    padding-left: 20px;
}

.site-map-column li:last-child {
    border-bottom: 1px solid #ddd;
}

.site-map-column li::before {
    content: "";
    position: absolute;
    left: 4px;
    top: 50%;
    width: 8px;
    height: 12px;
    background-image: url("../images/common/water-drop.png");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    transform: translateY(-50%);
}

.site-map-column a {
    display: block;
    padding: 9px 4px;
    color: #2169a0;
    text-decoration: none;
}

.site-map-column a:hover {
    text-decoration: underline;
}


/* =========================================================
   BREADCRUMB
========================================================= */

.breadcrumb {
    padding: 30px 0 20px;
    font-size: 13px;
}

.breadcrumb a {
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}


/* =========================================================
   PAGE HEADING
========================================================= */

.page-heading {
    padding: 20px 0 40px;
}


/* =========================================================
   PAGE TITLE
========================================================= */

.page-title {
    margin: 0 0 35px 0;
    padding: 18px 25px;
    min-height: 70px;
    box-sizing: border-box;
    background-image: url("../images/common/h1line.jpg");
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
    border-radius: 8px;
    color: black;
    font-size: 28px;
    font-weight: 700;
    line-height: 1.3;
}


/* =========================================================
   H2 / H3
========================================================= */
/*
main .page-content h2 {
    position: relative;
    margin: 0 0 25px 0;
    padding: 10px 15px 10px 32px;

    color: #2169a0;
    font-size: 22px;
    font-weight: 700;

    background: #f3f7fa;
    border-radius: 5px;
}

main .page-content h2::before {
    content: "";

    position: absolute;
    left: 10px;
    top: 50%;

    width: 10px;
    height: 15px;

    background-image: url("../images/common/water-drop.png");
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;

    transform: translateY(-50%);
}
*/
/* =========================================================
   h2
========================================================= */
/* =========================================================
   h2
========================================================= */

main .page-content h2 {
    position: relative;

    margin: 0 0 25px 0;
    padding: 0 0 17px 28px;

    color: #2169a0;
    font-size: 22px;
    font-weight: 700;

    border: none;
}


/* ---------------------------------------------------------
   Water Drop
--------------------------------------------------------- */

main .page-content h2::before {
    content: "";

    position: absolute;
    left: 0;
    top: 40%;

    width: 10px;
    height: 15px;

    background-image: url("../images/common/water-drop.png");
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;

    transform: translateY(-80%);
}


/* ---------------------------------------------------------
   Wave Line
--------------------------------------------------------- */

main .page-content h2::after {
    content: "";

    position: absolute;
    left: 10px;
    right: 0;
    bottom: 0;

    width: auto;
    height: 17px;

    background-image: url("../images/common/h2_line.svg");
    background-repeat: no-repeat;
    background-position: left bottom;
    background-size: 100% 17px;
}

main h3 {
    margin: 30px 0 15px 0;
    color: #2169a0;
    font-size: 18px;
    font-weight: 700;
}
.page-content-top h2::after {
    content: "";

    position: absolute;
    left: 10px;
    right: 0;
    bottom: 0;

    width: auto;
    height: 17px;

    background-image: url("../images/common/h2_line.svg");
    background-repeat: no-repeat;
    background-position: left bottom;
    background-size: 100% 17px;
}

/* =========================================================
   TOP COMPANY LIST
========================================================= */

.group-companies {
    margin-top: 50px;
}

.company-list {
    margin: 25px 0 0;
    padding: 0;
    list-style: none;
}

.company-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    padding: 14px 0;
    border-bottom: 1px solid #d9e2e8;
}

.company-list li:first-child {
    border-top: 1px solid #d9e2e8;
}

.company-list li span {
    color: #2169a0;
    font-weight: bold;
}

.company-list li a {
    flex-shrink: 0;
    color: #2169a0;
    font-size: 13px;
    text-decoration: none;
}

.company-list li a:hover {
    text-decoration: underline;
}


/* =========================================================
   TOP CATEGORY LINK
========================================================= */

.category-link {
    display: flex;
    gap: 30px;
    margin-top: 50px;
    padding-bottom: 35px;
    border-bottom: 1px solid #d9e2e8;
}

.category-image {
    flex: 0 0 240px;
    width: 240px;
    margin: 0;
}

.category-image img {
    display: block;
    width: 240px;
    height: 120px;
    object-fit: cover;
    border-radius: 10px;
}

.category-content {
    flex: 1;
}

.category-content h2 {
    margin-top: 0;
    margin-bottom: 20px;
}

.category-more {
    margin: 20px 0 0;
    text-align: right;
}

.category-more a {
    color: #2169a0;
    font-size: 14px;
    font-weight: bold;
    text-decoration: none;
}

.category-more a:hover {
    text-decoration: underline;
}


/* =========================================================
   CATEGORY NAVIGATION TITLE
========================================================= */

.category-nav-title {
    margin-bottom: 15px;
    color: #064b78;
    font-size: 18px;
    font-weight: 700;
}


/* =========================================================
   ARTICLE IMAGE
========================================================= */

.article-image {
    width: 40%;
    margin-top: 10px;
    margin-bottom: 25px;
}

.article-image img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 8px;
    border: 2px white solid;
    box-shadow: 0 0 2px #dcdcdc;
}

.article-image.align-right {
    float: right;
    margin-left: 30px;
    margin-right: 0px;
}

.article-image.align-left {
    float: left;
    margin-right: 30px;
    margin-left: 0px;
}

/* =========================================================
   PAGE CONTENTS =ページ内ナビ
========================================================= */

.page-contents {
    margin: 0 0 40px;
    padding: 20px 25px;
    border: 1px solid #d9e2e8;
    border-radius: 8px;
    background: #f7fafc;
}

.page-contents-title {
    margin: 0 0 15px !important;
    padding: 0 0 0px !important;

    color: #2169a0 !important;
    font-size: 18px !important;
    font-weight: 700;

    border-bottom: 1px solid #b7dff8 !important;
}

.page-contents-title::before {
    display: none !important;
}

.page-contents ul {
    display: grid;
    grid-template-columns: repeat(2, 1fr);

    margin: 0;
    padding: 0;

    list-style: none;
}
.page-contents-single ul {
    grid-template-columns: 1fr;
}
.page-contents li {
    position: relative;
    margin: 0;
    padding: 8px 10px 8px 20px;
}

.page-contents li::before {
    content: "";

    position: absolute;
    left: 3px;
    top: 16px;

    width: 6px;
    height: 9px;

    background-image: url("../images/common/water-drop.png");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

.page-contents a {
    color: #2169a0;
    text-decoration: none;
}

.page-contents a:hover {
    text-decoration: underline;
}


/* =========================================================
   CLEAR FLOAT
========================================================= */

.page-content::after {
    content: "";
    display: block;
    clear: both;
}
/* =========================================================
   CLEAR FLOAT 
========================================================= */

.clear-float {
    clear: both;
}

/* =========================================================
   SPACER
========================================================= */

.spacer-small {
    height: 15px;
}

.spacer {
    height: 30px;
}

.spacer-large {
    height: 50px;
}


/* =========================================================
   SMARTPHONE
========================================================= */

@media screen and (max-width: 480px) {

    .intro {
        padding: 40px 0 25px;
    }

    .page-heading {
        padding: 15px 0 30px;
    }

    .site-map {
        padding: 35px 0 45px;
    }

    .site-map-grid {
        display: block;
    }

    .site-map-column {
        margin-bottom: 35px;
    }

    .group-companies {
        margin-top: 40px;
    }

    .company-list li {
        display: block;
        padding: 15px 0;
    }

    .company-list li a {
        display: inline-block;
        margin-top: 6px;
    }

    .article-image,
    .article-image.align-right,
    .article-image.align-left {
        float: none;
        width: 100%;
        max-width: 100%;
        margin: 25px auto;
    }

    .article-image img {
        width: 100%;
        height: auto;
    }

    .category-link {
        display: block;
        margin-top: 40px;
    }

    .category-image {
        width: 240px;
        max-width: 100%;
        margin: 0 auto 20px;
    }

    .category-image img {
        display: block;
        width: 240px;
        height: 120px;
        object-fit: cover;
        border-radius: 10px;
    }

    .category-content h2 {
        margin-bottom: 15px;
    }

    .category-more {
        margin-top: 15px;
    }
    .page-contents {
        margin-bottom: 35px;
        padding: 18px 20px;
    }

    .page-contents ul {
        display: block;
    }

    .page-contents li {
        padding: 8px 5px 8px 20px;
    }    
}
/* =========================================================
   SIMPLE TABLE
========================================================= */

.simple-table {
    width: 100%;
    margin: 25px 0;
    border-collapse: collapse;
    border-top: 1px solid #d9e2e8;
    border-left: 0px solid #d9e2e8;
}

.simple-table th,
.simple-table td {
    padding: 12px 15px;
    border-right: 0px solid #d9e2e8;
    border-bottom: 1px solid #d9e2e8;
    text-align: left;
    vertical-align: top;
    line-height: 1.6;
}

.simple-table th {
    width: 25%;
    color: #2169a0;
    font-weight: 700;
    background: #f3f7fa;
}


/* =========================================================
   SIMPLE TABLE - SMARTPHONE
========================================================= */

@media screen and (max-width: 480px) {

    .simple-table,
    .simple-table tbody,
    .simple-table tr,
    .simple-table th,
    .simple-table td {
        display: block;
        width: 100%;
        box-sizing: border-box;
    }

    .simple-table {
        border-left: 0px solid #d9e2e8;
    }

    .simple-table th {
        padding: 8px 12px;
        border-bottom: none;
    }

    .simple-table td {
        padding: 8px 12px 12px;
    }

    .simple-table tr {
        border-bottom: 1px solid #d9e2e8;
    }
}
/* =========================================================
   TIMELINE TABLE
========================================================= */

.timeline-table {
    width: 100%;
    margin: 25px 0;
    border-collapse: collapse;
    border-top: 1px solid #d9e2e8;
    border-left: 0px solid #d9e2e8;
}

.timeline-table th,
.timeline-table td {
    padding: 12px 15px;
    border-right: 0px solid #d9e2e8;
    border-bottom: 1px solid #d9e2e8;
    text-align: left;
    vertical-align: top;
    line-height: 1.6;
}

.timeline-table th {
    width: 18%;
    color: #2169a0;
    font-weight: 700;
    background: #f3f7fa;
}


/* =========================================================
   TIMELINE TABLE - SMARTPHONE
========================================================= */

@media screen and (max-width: 480px) {

    .timeline-table th,
    .timeline-table td {
        padding: 10px 10px;
    }

    .timeline-table th {
        width: 28%;
    }
}
/* =========================================================
   ARTICLE ICON IMAGE
========================================================= */

.article-icon {
    float: right;
    width: 120px;
    margin: 0 0 20px 25px;
}

.article-icon img {
    display: block;
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 10px;
    border: 1px solid #dcdcdc;
}


/* =========================================================
   ARTICLE ICON IMAGE - SMARTPHONE
========================================================= */

@media screen and (max-width: 480px) {

    .article-icon {
        width: 90px;
        margin: 0 0 15px 20px;
    }

    .article-icon img {
        width: 90px;
        height: 90px;
    }
}
/* =========================================================
   ARTICLE ICON + H3
========================================================= */

.article-icon {
    float: right;
    width: 120px;
    margin: 0 0 0 25px;
}

.article-icon img {
    display: block;
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 10px;
}

.article-icon + h3 {
    margin-top: 30px;
    margin-bottom: 15px;
    padding-bottom: 8px;

    border-bottom: 2px solid #dcdcdc;
}


/* =========================================================
   ARTICLE ICON + H3 - SMARTPHONE
========================================================= */

@media screen and (max-width: 480px) {

    .article-icon {
        width: 90px;
        margin: 0 0 0 20px;
    }

    .article-icon img {
        width: 90px;
        height: 90px;
    }

    .article-icon + h3 {
        margin-top: 25px;
    }
}
/* =========================================================
   RESEARCH PRESENTATION LIST
========================================================= */

.research-item {
    margin: 0 0 35px 0;
    padding: 5px 0 5px 15px;
    border-left: 4px solid #2169a0;
}

.research-item h3 {
    margin: 0 0 8px 0;
    color: #000;
    font-size: 17px;
    font-weight: 700;
    line-height: 1.2;
}

.research-author {
    margin: 0 0 0px 0;
    font-size: 15px;
    line-height: 1.2;
}

.research-pdf,
.research-web {
    margin: 5px 0 0 0;
    font-size: 15px;
    line-height: 1.2;
}

.research-item a {
    color: #2169a0;
    text-decoration: underline;
}

.research-item a:hover {
    text-decoration: none;
}

.research-note,
.research-toggle {
    margin-left: 5px;
    font-size: 13px;
}
/* NEWS SECTION */
.news-section {
    max-width: 960px;
    margin: 30px auto;
    padding: 0 25px;
}

.news-heading {
    margin: 0 0 12px;
    color: #2169a0;
    font-size: 20px;
    font-weight: 700;
}

.news-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.news-list li {
    display: flex;
    gap: 20px;
    padding: 10px 0;
    border-bottom: 1px solid #ddd;
}

.news-list time {
    flex: 0 0 100px;
    color: #666;
    font-size: 14px;
}

.news-list a {
    color: #2169a0;
    text-decoration: none;
}

.news-list a:hover {
    text-decoration: underline;
}

.news-more {
    margin-top: 12px;
}

.news-more summary {
    color: #2169a0;
    cursor: pointer;
    font-size: 14px;
    font-weight: 700;
    list-style: none;
}

.news-more summary::-webkit-details-marker {
    display: none;
}

.news-more summary::after {
    content: "＋";
    margin-left: 8px;
}

.news-more[open] summary::after {
    content: "－";
}

.news-more .news-list {
    margin-top: 8px;
}

/* Smartphone */
@media screen and (max-width: 480px) {
    .news-section {
        margin: 20px 15px;
        padding: 0;
    }

    .news-list li {
        display: block;
    }

    .news-list time {
        display: block;
        margin-bottom: 4px;
    }
}
/* =========================================================
   IMAGE PAIR　2つの画像を横並び、縦並び切り替え
========================================================= */

.image-pair {
    display: flex;
    gap: 20px;
    width: 100%;
    margin: 30px 0;
}

.image-pair figure {
    flex: 1;
    min-width: 0;
    margin: 0;
    padding: 0;
}

.image-pair img {
    display: block;
    width: 100%;
    height: auto;
    margin: 0;
    padding: 0;
    border-radius: 10px;
}

/* Smartphone */
@media screen and (max-width: 480px) {
    .image-pair {
        flex-direction: column;
        gap: 20px;
    }
}

/* =========================================================
   OTHER STYLE
========================================================= */

.no-radius { /*　画像の角丸とシャドーを解除　*/
    border-radius: 0 !important;
    box-shadow:  0 0 0 #fff !important;
}
.full-width-image {/* 画像を幅いっぱいに表示 */
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 0;
}

.full-width-image img {
    display: block;
    width: 100%;
    max-width: none;
    height: auto;
    margin: 0;
    padding: 0;
    border-radius: 0;
}
.small-right-image  {
    max-width: 160px;
    margin: 0 0 0 20px; 
    float: right ; 
}
@media screen and (max-width: 480px) {
.small-right-image  {
    max-width: 160px;
    margin: 0 0 0 10px;  
    float: right ; 
}
}