/*Template designed by Saiyo Design*/
/*version 01*/
@charset "utf-8";
/*共通
---------------------------------------------------------------------------------------------------------------------------*/
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  letter-spacing: 1px;
  font-feature-settings: "palt";
  font-family: 'Arial', sans-serif;
}
html {
  scroll-behavior: smooth;
  font-size: 15px;
  line-height: 1.8em;
  overflow-x: hidden;
}
body {
    color: #666;
    background-color: #cae2d3; /* ← 薄い緑 */
}
section {
  margin-bottom: 100px;
}
h2 {
  font-size: 20px;
  line-height: 1.5em;
  color: var(--key_color_text);
}
h3 {
  font-size: 18px;
  color: var(--key_color_text);
}
h4 {
  font-size: 15px;
  margin-bottom: 0.5em;
}
p {
  text-align: justify;
}
p + p {
  margin-bottom: 1em;
}
img {
  max-width: 100%;
  height: auto;
  vertical-align: bottom;
  border: none;
}
.img_mb img {
  border-radius: 10px;
  margin-bottom: 10px;
}
a {
  text-decoration: none;
  transition: 0.3s;
  cursor: pointer;
  color: #666;
}
a:hover {
  opacity: 0.7;
}
ul, li {
  list-style: none;
}
.layout {
  margin: -50px 20px 0 40px;
}
.grid_2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.grid_1_2 {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
}
.sticky {
  position: sticky;
  top: 30px;
  display: grid;
  grid-template-columns: 1fr 1fr;
}
a[href^="tel"] {
  color: inherit;
  text-decoration: underline;
  pointer-events: none;
  cursor: default;
}
@media screen and (max-width: 1000px) {
  html {
    font-size: 14px;
  }
  .layout {
    margin: -50px 20px 0 20px;
  }
  .grid_2, .grid_1_2 {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .sticky {
    top: 20px;
  }
}
@media screen and (max-width: 480px) {
  section {
    margin-bottom: 50px;
  }
  a {
    transition: none;
  }
}
/* ヘッダー
---------------------------------------------------------------------------------------------------------------------------*/
header {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
}
.header_block {
  display: grid;
  grid-template-columns: 300px 1fr;
}
.society_name_box {
  display: flex;
  justify-content: flex-start;
  align-items: center;
}
.society_name {
    display: inline-block;
    font-size: 26px;
    line-height: 1em;
    font-weight: bold;
    margin-left: 20px;
    color: #333;
}
.society_name span {
  display: block;
  font-size: 0.5em;
  font-weight: bold;
  color: #999;
}
.navi_box {
  padding: 25px 0 20px;
  display: flex;
  justify-content: flex-end;
}
nav ul {
  list-style: none;
  display: flex;
  justify-content: flex-start;
  gap: 0.5em;
  margin-right: 200px;
}
nav ul li {
  display: flex;
  justify-content: flex-start;
}
nav ul li a {
  font-size: 17px;
  line-height: 1.3em;
  padding: 1em;
  color: #000;
  white-space: nowrap;
  letter-spacing: 1px;
}
nav ul li a span {
  font-size: 0.5em;
  display: block;
  color: #999;
  letter-spacing: 2px;
}
@media screen and (max-width: 1000px) {
  header {
    padding: 20px 0 0 15px;
  }
  .navi_box {
    padding: 0;
    justify-content: flex-start;
  }
    .society_name {
        font-size: 20px;
        line-height: 1em;
        padding-bottom: 18px;
        margin-left: 0;
    }
  nav ul {
    margin: 0;
    justify-content: center;
  }
  .header_block {
    grid-template-columns: 1fr;
  }
  nav ul li a {
    font-size: 15px;
    padding: 0.3em 0.3em 1em;
  }
}
@media screen and (max-width: 480px) {
  nav ul li a {
    font-size: 14px;
  }
}
/* ヒーローイメージ/スライド
---------------------------------------------------------------------------------------------------------------------------*/
.slide_hero {
  position: relative;
  width: 100%;
  height: 75vh;
  overflow: hidden;
}
.slide_hero_box {
  position: relative;
  display: block;
  max-width: 1200px;
  height: 100%;
  margin: auto;
  z-index: 1;
}
.slide_hero_catchcopy {
  position: absolute;
  bottom: 30px;
  left: 40px;
  padding-right: 20px;
}
.slide_hero_catchcopy h2 {
  display: inline-block;
  font-size: 30px;
  color: #fff;
  font-weight: bold;
  letter-spacing: 2px;
  text-shadow: 2px 2px 2px rgba(0, 0, 0, 0.1);
}
.slide_hero_catchcopy h3 {
  width: 100%;
  font-size: 90px;
  line-height: 1em;
  color: #fff;
  margin-bottom: 0.05em;
  letter-spacing: -2px;
  text-shadow: 2px 2px 2px rgba(0, 0, 0, 0.1);
}
.slide_hero_catchcopy p {
  display: inline-block;
  font-size: 17px;
  line-height: 1em;
  color: #fff;
  font-weight: bold;
  letter-spacing: 2px;
  background-color: rgba(0,0,0,0.70);
  padding: 0.8em 1em 0.7em 1em;
  margin-bottom: 30px;
}
.slide_hero_img {
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  animation: slide_hero 22s linear infinite;
}
.slide_hero_img:nth-child(2) {
  animation-delay: 0s;
}
.slide_hero_img:nth-child(3) {
  animation-delay: 7.33s;
}
.slide_hero_img:nth-child(4) {
  animation-delay: 14.67s;
}
@keyframes slide_hero {
  0%, 40.91%, 100% {
    opacity: 0;
  }
  9.09%, 31.82% {
    opacity: 1;
  }
  40.91% {
    transform: scale(1.1);
  }
}
@media screen and (max-width: 1000px) {
  .slide_hero {
    height: 65vh;
  }
  .slide_hero_catchcopy {
    bottom: 10px;
    left: 40px;
  }
  .slide_hero_catchcopy h2 {
    font-size: 20px;
  }
  .slide_hero_catchcopy h3 {
    font-size: 65px;
  }
  .slide_hero_catchcopy p {
    font-size: 15px;
  }
}
@media screen and (max-width: 480px) {
  .slide_hero {
    height: 65vh;
  }
  .slide_hero_catchcopy {
    bottom: 10px;
    left: 20px;
  }
  .slide_hero_catchcopy h2 {
    font-size: 16px;
    letter-spacing: 2px;
  }
  .slide_hero_catchcopy h3 {
    font-size: 40px;
  }
  .slide_hero_catchcopy p {
    font-size: 13px;
    letter-spacing: 2px;
  }
}
/* トップページ下タブ
---------------------------------------------------------------------------------------------------------------------------*/
.news_block {
  margin-bottom: 50px;
}
.news_box {
    margin-left: 300px;
    margin-right: calc(50% - 50vw);
    padding-right: calc(50vw - 50%);
    padding: 30px 60px;
    border-bottom-left-radius: 50px;
    display: flex;
    justify-content: flex-start;
    align-content: center;
    gap: 40px;
    color: #FFF;
    margin-bottom: 0 !important;
    background-color: #2f4f3a; /* 背景色（濃い緑） */
}
.news_box p {
  margin: 0;
  padding: 0;
}
@media screen and (max-width: 1000px) {
  .news_block {
    margin-bottom: 30px;
  }
  .news_box {
    margin-left: 20px;
    padding: 20px;
    flex-direction: column;
    border-bottom-left-radius: 20px;
    gap: 0;
  }
  .news_box p {
    font-size: 13px;
    line-height: 1.4em;
  }
}
/* メッセージ
---------------------------------------------------------------------------------------------------------------------------*/
.message_box {
    display: block;
    margin-left: 340px;
    margin-right: 80px;
    letter-spacing: 0.1em;
    margin-bottom: 70px;
}

/* 新着情報 */
/* 外側のコンテナ */
.message_box.news {
    max-width: 900px;
    margin: 40px auto; /* 上下の余白を広げてゆとりを出す */
    text-align: left;
}

    /* タイトルのデザイン（文字間を広げて洗練させる） */
    .message_box.news h2 {
        font-size: 24px;
        letter-spacing: 0.1em;
        color: #333;
        margin-bottom: 30px;
        position: relative;
        padding-left: 15px;
    }

        /* タイトルの左に細いアクセント線を入れる */
        .message_box.news h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 15%;
            height: 70%;
            width: 3px;
            background-color: #003366;
        }

/* ★スクロールエリア：白背景を透過させて馴染ませる */
.news_scroll_area {
    background-color: rgba(255, 255, 255, 0.9); /* ほんのり透かすとお洒落 */
    padding: 10px 30px; /* 左右の余白を多めに */
    border-radius: 12px;
    height: 220px;
    overflow-y: auto;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05); /* 影を薄く広げる */
}

/* 各行：線を細く、余白を広く */
.news_item {
    display: flex;
    align-items: center;
    padding: 18px 0; /* 行間を広げて見やすく */
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.3s ease;
}

/* 日付：フォントを小さく、色を薄く */
.news_date {
    font-family: 'Helvetica', sans-serif; /* 欧文フォントを混ぜると綺麗 */
    font-size: 13px;
    color: #888;
    width: 140px;
    flex-shrink: 0;
}

/* 記事タイトル（リンク） */
.news_category a {
    color: #333;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: 0.2s;
}

/* マウスを乗せた時の動き */
.news_item:hover {
    background-color: #fcfcfc; /* ほんのりグレーに */
    padding-left: 0px; /* 右に少し動かす（お洒落テクニック） */
}

    .news_item:hover .news_category a {
        color: #003366; /* リンク色を濃く */
    }

/* スクロールバー自体も細くしてデザインに合わせる */
.news_scroll_area::-webkit-scrollbar {
    width: 4px;
}

.news_scroll_area::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 10px;
}


/* トップバナー（新着情報の下） */
.top_banners_compact {
    padding: 20px 0;
    background: #2f4f3a; /* バナーの間隔 */
    border-top: 1px solid #eee;
}

.banner_list {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px; /* バナーの間隔 */
    max-width: 1000px;
    margin: 0 auto;
}

.banner_link {
    flex: 1;
    max-width: 190px; /* バナーの最大幅を小さく設定 */
    height: 50px; /* 高さを抑えてコンパクトに */
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    transition: all 0.2s ease-in-out;
}

    .banner_link img {
        max-width: 100%;
        max-height: 100%;
        width: auto;
        height: auto;
        object-fit: contain; /* フルカラーで比率を維持 */
    }

    /* ホバー時に少しだけ浮き上がらせる（やりすぎない演出） */
    .banner_link:hover {
        border-color: #3B8DAF;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        transform: translateY(-2px);
    }

/* 募集案内専用の独立エリア */
/* 1. 上のバナーエリアが持っている巨大な隙間(100px)を消す */
.top_banners_compact {
    margin-bottom: 0 !important;
}

/* 2. 募集案内の位置を調整する */
.ad_recruitment_box {
    width: 100%;
    padding: 20px 0 0px; /* ★ここの 20px を変えるだけで「あき具合」を調整できます */
    text-align: center;
}

.ad_recruitment_link {
    display: inline-flex;
    align-items: center;
    background: #fff; /* 清潔感のある白 */
    border: 1px solid #3B8DAF; /* 学会カラーの枠線 */
    padding: 8px 24px;
    border-radius: 50px; /* 丸みのあるカプセル型 */
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.ad_icon {
    background: #3B8DAF;
    color: #fff;
    font-size: 10px;
    font-weight: bold;
    padding: 2px 8px;
    border-radius: 3px;
    margin-right: 15px;
    letter-spacing: 0.1em;
}

.ad_text {
    color: #333;
    font-size: 14px;
    font-weight: bold;
}

.ad_arrow {
    margin-left: 15px;
    color: #3B8DAF;
    transition: transform 0.3s ease;
}

/* ホバー時の挙動 */
.ad_recruitment_link:hover {
    background: #3B8DAF;
    box-shadow: 0 4px 15px rgba(59, 141, 175, 0.2);
}

    .ad_recruitment_link:hover .ad_text,
    .ad_recruitment_link:hover .ad_arrow {
        color: #fff;
    }

    .ad_recruitment_link:hover .ad_icon {
        background: #fff;
        color: #3B8DAF;
    }

    .ad_recruitment_link:hover .ad_arrow {
        transform: translateX(5px);
    }


/* ページレイアウト
---------------------------------------------------------------------------------------------------------------------------*/
/* 囲みカラム */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
}
.page_block {
  display: grid;
  grid-template-columns: 300px 1fr;
}
/* 左カラム */
.title_box h2 {
  writing-mode: vertical-rl;
  margin-right: auto;
  line-height: 1.2em;
  letter-spacing: 0.1em;
}
.title_box h2 span {
  display: block;
  color: #888;
  font-size: 0.62em;
  letter-spacing: 3px;
  font-weight: bold;
}
.title_box h3 {
  writing-mode: vertical-rl;
  font-size: 4rem;
  margin-right: auto;
  color: #EDEDED;
  margin-left: 50px;
  letter-spacing: 0.1em;
  color: #435930;
}
.title_box ul {
  margin-left: 40px;
  margin-top: 40px;
}
.title_box li {
  padding: 5px 0;
  border-top: solid 1px #eee;
}
.title_box li:first-child {
  border: none;
}
.title_box li a {
  font-size: 14px;
  position: relative;
  display: block;
  padding-left: 14px;
  color: #888;
  text-decoration: none;
  margin: 10px 0;
  font-weight: bold;
  letter-spacing: 1px;
}
.title_box li a:before {
  content: '';
  width: 4px;
  height: 4px;
  border: 0;
  border-top: solid 1px #ccc;
  border-right: solid 1px #ccc;
  position: absolute;
  top: 46%;
  left: 0;
  margin-top: -2px;
  transform: rotate(45deg);
  transition: 0.2s;
}
.title_box li a:hover:before {
  left: 3px;
}
@media screen and (max-width: 1000px) {
  .page_block {
    grid-template-columns: 70px 1fr;
  }
  .title_box .sticky {
    display: block;
  }
  .title_box h2 {
    font-size: 17px;
    margin-left: 12px;
  }
  .title_box h3 {
    margin: 0;
    left: 10px;
    color: #F8F8F8;
    position: absolute;
    z-index: -1;
  }
  .title_box ul {
    margin-left: 0;
    margin-top: 20px;
  }
  .title_box li {
    writing-mode: vertical-rl;
  }
  .title_box li a {
    font-size: 11px;
    padding-left: 5px;
    margin: 10px 0 10px 5px;
  }
}
/* 右カラム */
/* アイキャッチ画像 */
.page_box .eye_catch {
  margin-right: calc(50% - 50vw + 150px);
  padding-right: calc(50vw - 50% - 150px);
  background-repeat: no-repeat;
  background-size: cover;
  aspect-ratio: 16 / 8;
  border-top-left-radius: 50px;
}
.page_box .copy {
  margin: -100px 0 0 0;
  background-color: #eef6f0;
  padding: 40px;
  border-top-right-radius: 50px;
}
.page_box .copy h2 {
  font-size: 18px;
  color: #666;
  margin-bottom: 1em;
}
.page_box h3 {
  margin-right: calc(50% - 50vw + 150px);
  padding-right: calc(50vw - 50% - 150px);
  background-color: #f8fbf9; /*項目の色はここ*/
  height: 160px;
  padding: 40px;
  border-bottom-left-radius: 50px;
  position: relative;
  text-indent: 30px;
  z-index: -1;
}
.page_box h3::before {
  position: absolute;
  content: "";
  width: 4px;
  height: 40px;
  top: 33px;
  left: 45px;
  background-color: var(--key_color_back);
}
@media screen and (max-width: 1000px) {
  .page_box .eye_catch {
    margin-right: 0;
    aspect-ratio: 16 / 12;
  }
  .page_box .copy {
    margin: -100px 0 0 0;
    background-color: #FFF;
    padding: 20px 20px 40px 10px;
    border-top-right-radius: 20px;
  }
  .page_box h3 {
    margin-right: 0;
    text-indent: 0;
    border-bottom-left-radius: 20px;
    height: 120px;
    padding: 20px;
  }
  .page_box h3::before {
    height: 20px;
    top: 22px;
    left: 0;
  }
  .page_box .copy p br {
    display: none;
  }
}
@media screen and (max-width: 480px) {
  .page_box .eye_catch {
    aspect-ratio: 16 / 13;
  }
  .page_box .copy h2 {
    font-size: 16px;
  }
}
/*学会を知る　society
---------------------------------------------------------------------------------------------------------------------------*/
/*データ*/
.society_box {
  background-color: #eef6f0; /* 薄い緑 */
  border-radius: 20px;
}

.society_box h4 + p {
  margin-bottom: 2em;
}
.society_box img {
  margin-bottom: 2em;
}
.data_box {
  max-width: 700px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
  justify-content: center;
  margin-left: 20px;
}
.data_box > div {
  color: #888;
  width: 230px;
  display: flex;
  justify-content: center;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  border: solid 4px #EDEDED;
  background-color: #FFF;
  border-radius: 20px;
  padding: 40px 20px 30px 20px;
}
.data_box img {
  width: 90px;
  border-radius: 50px;
  padding: 15px;
  background-color: var(--key_color_back);
}
.data_box h4 {
  margin-bottom: 1em;
  height: 3em;
  text-align: center;
  color: var(--key_color_text);
}
.data_box p {
  font-size: 60px;
  display: inline;
  margin: 0 0 3em 0;
  font-weight: bold;
}
.data_box span {
  display: inline;
  margin-left: 0.1em;
  font-weight: bold;
}
@media screen and (max-width: 1100px) {
  .data_box {
    max-width: 700px;
    display: flex;
    gap: 10px;
    justify-content: flex-start;
    flex-flow: wrap;
    margin-left: 0;
  }
  .data_box > div {
    width: 160px;
    padding: 20px 15px 15px 15px;
  }
  .data_box img {
    width: 70px;
    padding: 10px;
  }
  .data_box h4 {
    font-size: 16px;
  }
  .data_box p {
    font-size: 3px;
    display: inline;
  }
}
@media screen and (max-width: 480px) {
  .data_box > div {
    width: 125px;
    padding: 10px;
  }
  .data_box h4 {
    font-size: 14px;
  }
  .data_box p {
    font-size: 35px;
  }
}
/* 年次大会　meeting
---------------------------------------------------------------------------------------------------------------------------*/
.meeting_flow_box {
  display: flex;
  flex-direction: column;
  gap: 40px;
  margin-bottom: 40px;
  background: linear-gradient(to right, transparent 40px, #F8F8F8 40px, #F8F8F8 60px, transparent 60px);
}
.meeting_flow_box div {
  display: flex;
  justify-content: flex-start;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  border: solid 4px #EDEDED;
  background-color: #FFF;
  border-radius: 20px;
  padding: 30px 20px 20px 20px;
}
.meeting_flow_box div h4 {
  display: flex;
  justify-content: flex-start;
  align-items: center;
}
.meeting_flow_box div h4 span {
  display: block;
  font-size: 75px;
  font-style: italic;
  color: #EDEDED;
  font-weight: bold;
  margin-right: 20px;
}
.meeting_flow_img p {
  margin-bottom: 2em;
}
/* Journals 学会誌
---------------------------------------------------------------------------------------------------------------------------*/
/* 学会誌リンク集のスタイル */
.journal_list_simple {
    list-style: none;
    padding: 0;
    margin: 20px 0;
}

    .journal_list_simple li {
        border-bottom: 1px solid #eee; /* 下線で区切る */
        transition: background-color 0.3s;
    }

        .journal_list_simple li a {
            display: block;
            padding: 12px 10px;
            color: #333;
            text-decoration: none;
            position: relative;
            padding-left: 25px; /* アイコン分の余白 */
        }

            /* 文頭の「▶」をCSSで制御 */
            .journal_list_simple li a::before {
                content: "▶";
                position: absolute;
                left: 5px;
                font-size: 0.8em;
                color: #b00020; /* 学会カラーのアクセント */
            }

            /* ホバー（マウスを乗せた時）の演出 */
            .journal_list_simple li a:hover {
                background-color: #f9f9f9;
                color: #b00020;
                padding-left: 30px; /* 少し右に動くアニメーション */
                transition: 0.3s;
            }



/*スタッフの声*/
.people_voice h2 {
  padding: 1em 0;
  margin: 0 0 1em 0;
  border-bottom: solid 1px #eee;
  color: #666;
  font-weight: bold;
  font-size: 26px;
}
.people_voice .people_voice_box p {
  margin-bottom: 0;
}
.people_voice_name {
  padding: 0.5em 0 1em 0;
  margin-bottom: 1em;
  font-size: 1.5rem;
}
.people_voice_name span {
  font-size: 0.6em;
}
.people_voice div {
  position: relative;
}
.people_voice div h4 {
  text-indent: 3.5em;
}
.people_voice div h4:before {
  position: absolute;
  border-top: 1px solid;
  content: "";
  width: 3em;
  left: 0;
  top: 0.7em;
}
.people_voice div p {
  margin-bottom: 4em;
}
.people_voice .img_mb {
  margin-bottom: 40px;
}
@media screen and (max-width: 1000px) {
  .people_voice .people_voice_box .order1 {
    order: 2;
  }
  .people_voice .people_voice_box .order2 {
    order: 1;
  }
  .people_voice .people_voice_box .img_mb {
    margin-bottom: 0;
  }
  .people_voice .people_voice_box {
    margin-bottom: 40px;
  }
  .people_voice h2 {
    padding: 0.5em 0 0.2em 0;
    margin: 0 0 0.4em 0;
    font-size: 26px;
  }
  .people_voice h4 {
    padding: 0 0 1.2em 0;
    margin: 0;
  }
  .people_voice_name {
    padding: 0;
  }
}
@media screen and (max-width: 480px) {
  .people_voice h2 {
    font-size: 19px;
    padding-bottom: 5px;
  }
}
/* ループ テキスト
---------------*/
.loop_text_block {
  display: flex;
  align-items: flex-end;
  width: 100%;
  height: 100%;
  overflow: hidden;
  position: relative;
}
.loop_text {
  display: flex;
  animation: loop_text 100s linear infinite;
}
.loop_text span {
  display: flex;
  white-space: nowrap;
  font-size: 130px;
  line-height: 1em;
  font-weight: bold;
  color: rgba(255, 255, 255, 0.3);
}
@keyframes loop_text {
  0% {
    transform: translateX(0%);
  }
  100% {
    transform: translateX(-50%);
  }
}
@media screen and (max-width: 480px) {
  .loop_text span {
    font-size: 100px;
  }
}
/* パララックス
---------------*/
.parallax {
  position: relative;
  height: 400px;
  width: 100vw;
  margin: 0 calc(50% - 50vw);
  background-attachment: fixed;
  background-repeat: no-repeat;
  background-size: cover;
  margin-bottom: 100px;
  overflow: hidden;
}
.parallax::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background-attachment: fixed;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  z-index: -1;
}
@media screen and (max-width: 1000px) {
  .parallax {
    height: 250px;
    margin-bottom: 50px;
  }
}
@media screen and (max-width: 480px) {
  .parallax {
    height: 250px;
    background-attachment: scroll;
  }
  .parallax::before {
    background-attachment: scroll;
    transform: translate3d(0, 0, 0);
  }
}

/* テーブル タイムライン 
-------------------------------*/
.table_timeline {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

    .table_timeline tr {
        display: grid;
        grid-template-columns: 80px 1fr;
    }

    .table_timeline th,
    .table_timeline td {
        padding: 20px 0;
        position: relative;
        text-align: left;
        vertical-align: top;
    }

    .table_timeline td {
        border-left: solid 1px;
        padding-left: 30px;
        border-left-color: var(--key_color_back);
    }

        /* タイムラインの丸ポチ */
        .table_timeline td h4:after {
            content: "";
            width: 9px;
            height: 9px;
            border-radius: 5px;
            position: absolute;
            left: -5px;
            top: 28px;
            background: var(--key_color_back);
        }

        /* --- No.1などのボタンを横に並べる設定 --- */
        .table_timeline td p {
            display: inline-block; /* これで横に並びます */
            margin-top: 10px;
            margin-right: 8px; /* ボタン同士の横の隙間 */
            margin-bottom: 0;
        }

            /* No.1などのリンクを丸く囲うスタイル */
            .table_timeline td p a {
                display: inline-block;
                background-color: var(--key_color_back); /* 背景色 */
                color: #fff; /* 文字色 */
                padding: 5px 18px; /* 内側の余白 */
                border-radius: 50px; /* カプセル型 */
                text-decoration: none; /* 下線消去 */
                font-size: 0.70em;
                font-weight: bold;
                transition: opacity 0.3s;
                line-height: 1.2;
            }

                /* ホバー時の効果 */
                .table_timeline td p a:hover {
                    opacity: 0.7;
                }

/* スマホ対応（480px以下）
-------------------------------*/
@media screen and (max-width: 480px) {
    .table_timeline tr {
        grid-template-columns: 1fr;
    }

    .table_timeline th {
        padding: 0;
    }

        .table_timeline th h4 {
            margin-left: -21px;
            margin-top: 7px;
        }
    /* スマホでは少しボタンを小さくする場合 */
    .table_timeline td p a {
        padding: 4px 12px;
        font-size: 0.8em;
    }
}
/* 関連情報　information
---------------------------------------------------------------------------------------------------------------------------*/
/* テーブル　関連情報
---------------*/
.table_information {
    width: 100%;
    border-collapse: collapse;
    margin-left: 10px;
}
.table_information th, .table_information td {
  vertical-align: top;
}
.table_information tr:first-child th, .table_information tr:first-child td {
  border: none;
}
.table_information th {
  border-top: solid 1px #aaa;
  white-space: nowrap;
  width: 120px;
  font-weight: bold;
  text-align: left;
  padding: 20px 0;
}
.table_information td {
  border-top: solid 1px #eee;
  padding: 20px 0 20px 20px;
}
@media screen and (max-width: 1000px) {
  .table_information {
    margin-left: 3px;
  }
  .table_information td {
    display: block;
    padding: 10px 20px 30px 0;
  }
  .table_information th {
    border-top: none;
    border-left: solid 3px #aaa;
    white-space: nowrap;
    padding: 0 0 0 0.5em;
    display: block;
    margin-bottom: 2px;
    font-weight: bold;
  }
  .table_information tr:first-child th {
    border-left: solid 3px #aaa;
    padding: 0 0 0 0.5em;
  }
  .table_information tr:first-child td {
    border-top: solid 1px #eee;
    padding: 10px 0 30px 0;
  }
  .table_information.sp_border tr:last-child th {
    border-bottom: none;
  }
  .table_information.sp_border tr:last-child td {
    border-bottom: none;
    padding: 10px 0 20px 0;
    margin-bottom: 10px;
  }
}
/* Contact
---------------------------------------------------------------------------------------------------------------------------*/
.contact_btn a {
  position: fixed;
  display: block;
  padding: 15px 30px;
  margin: 0 0 0 30px;
  top: 32px;
  right: 40px;
  overflow: hidden;
  color: #FFF;
  border-radius: 5px;
  z-index: 10;
  letter-spacing: 1px;
  opacity: 1;
  font-size: 15px;
  background-color: var(--key_color_back_contact);
}
.contact_btn a::before {
  content: '';
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  z-index: -1;
  width: 100%;
  height: 0;
  transition: 0.5s;
  background-color: var(--key_color_back_contact_hover);
}
.contact_btn a:hover::before {
  height: 90%;
}
.contact_btn a:active::before {
  height: 100%;
  transition: 0.1s;
}
.contact_block {
    width: 100%;
    background: linear-gradient(to bottom, #fff 88px, #F8F8F8 0);
    text-align: center;
    padding: 0 0 150px 0;
}
.contact_block h2 {
    position: relative;
    font-size: 120px;
}
.contact_box {
  max-width: 1000px;
  margin: auto;
  padding: 50px 20px 0;
}
.contact_box h3 {
  font-size: 26px;
  margin-bottom: 60px;
  color: #666;
}
.contact_box p {
  text-align: center;
}
.contact_link {
  display: flex;
  justify-content: center;
  gap: 20px;
  padding: 50px 0 80px;
}
.contact_link a {
  font-size: 26px;
  display: block;
  background-color: #FFF;
  width: 100%;
  padding: 20px;
  text-align: center;
  border: solid 4px #EDEDED;
  font-weight: bold;
  border-radius: 10px;
}
.contact_link span {
  display: block;
  font-size: 0.5em;
}
.contact_link p {
  display: block;
  font-size: 13px;
  margin-top: 10px;
  text-align: center;
  color: #666;
}
a.contact_navi {
  color: #00ABEB;
  background-color: #FFF;
}
a.contact_line {
  color: #00B214;
  background-color: #FFF;
}
a.contact_form {
  color: #555;
  background-color: #FFF;
}
.contact_email {
  display: block;
  font-size: 26px;
  line-height: 1.5em;
  color: #777;
  letter-spacing: 2px;
  text-decoration: none;
  padding-bottom: 1.5em;
  opacity: 0.8;
  font-weight: bold;
}
.contact_email span {
  font-size: 0.6em;
  margin-left: 20px;
  opacity: 0.8;
  font-weight: bold;
}
.contact_tel, .contact_tel a {
  font-size: 26px;
  line-height: 1.5em;
  font-weight: bold;
  color: #777;
  letter-spacing: 2px;
  text-decoration: none;
  opacity: 0.8;
}
.contact_tel span {
  font-size: 0.6em;
  margin-left: 25px;
  opacity: 0.8;
  font-weight: bold;
}
@media screen and (max-width: 1000px) {
  .contact_block {
    background: linear-gradient(to bottom, #fff 43px, #F8F8F8 0);
    padding: 0 0 80px;
  }
  .contact_btn a {
    padding: 10px 20px;
    margin: 0 0 0 30px;
    top: 15px;
    right: 15px;
    z-index: 10;
    font-size: 14px;
  }
  .contact_block h2 {
    font-size: 60px;
  }
  .contact_box h3 {
    font-size: 18px;
  }
  .contact_link {
    flex-direction: column;
    gap: 10px;
    padding: 30px 30px;
  }
  .contact_tel, .contact_email {
    font-size: 20px;
    display: block;
  }
  .contact_tel span, .contact_email span {
    display: block;
    margin-left: 0;
  }
}
@media screen and (max-width: 480px) {
  .contact_btn a {
    transform: scale(0.8);
    top: 10px;
    right: 8px;
  }
  .contact_btn a::before {
    height: 0;
  }
  .contact_btn a:hover::before, .contact_btn a:active::before {
    height: 0;
  }
}
/* footer
---------------------------------------------------------------------------------------------------------------------------*/
.footer_block {
  width: 100%;
  text-align: center;
  padding: 40px 0 70px;
  color: #fff;
  background-color: var(--key_color_back);
}
.footer_block a {
  text-decoration: none;
  color: #fff;
}
.copyright {
  display: inline-flex;
  flex-flow: column;
  font-size: 11px;
  letter-spacing: 2px;
  line-height: 30px;
}
.copyright a {
  letter-spacing: 1px;
}
@media screen and (max-width: 480px) {
  .copyright {
    font-size: 10px;
  }
}
/* ページトップへ移動ボタン
-----------------------------------------------------------------------*/
.scroll_top {
  opacity: 0; /* 初期状態では透明 */
  transition: opacity 0.5s ease; /* 透明度の変化を滑らかに */
  pointer-events: none; /* 初期状態ではクリック不可 */
}
.scroll_top.show {
  opacity: 1; /* 表示時の透明度 */
  pointer-events: auto; /* 表示時はクリック可能 */
}
.scroll_top a {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative; /* 親要素に相対位置を設定 */
  position: fixed;
  right: 15px;
  bottom: 15px;
  background-color: rgba(0, 0, 0, 0.3);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  opacity: 1;
}
.scroll_top a::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}
.scroll_top a::after {
  content: "";
  position: absolute;
  margin: auto;
  top: 22px;
  left: 19px;
  width: 10px;
  height: 10px;
  border-top: 2px solid #fff;
  border-right: 2px solid #fff;
  transform: rotate(-45deg);
  transition: 0.3s ease-in-out;
}
.scroll_top a:hover::after {
  top: 30px;
}
@media screen and (max-width: 480px) {
  .scroll_top a {
    transform: scale(0.7);
    right: 10px;
    bottom: 10px;
  }
  .scroll_top a:hover::after {
    top: 22px;
  }
}
/* アニメーション
---------------------------------------------------------------------------------------------------------------------------*/
.hidden_block {
  width: 100%;
  overflow-x: hidden;
}
/* 初期状態では非表示 */
.fade_in {
  opacity: 0;
  transition: opacity 2s ease-in-out, transform 2s ease-in-out;
}
/* カウント */
.fade_in.count {
  opacity: 1;
  font-size: 30px;
}
/* 同じ位置から表示時のアニメーション 
----------------------------------------------*/
.fade_in.default {
  opacity: 0;
}
.fade_in.default.show {
  opacity: 1;
  animation: fadeIndefaultAnimation 4s ease forwards;
}
/* 同じ位置からのキーフレーム定義 */
@keyframes fadeIndefaultAnimation {
  from {
    opacity: 0;
    transform: translateY(0);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
/* 下から表示時のアニメーション 
----------------------------------------------*/
.fade_in.up {
  transform: translateY(50px);
}
.fade_in.up.show {
  opacity: 1;
  transform: translateY(0);
  animation: fadeInUpAnimation 1s ease forwards;
}
/* 下から表示のキーフレーム定義 */
@keyframes fadeInUpAnimation {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
/* 横から表示時のアニメーション 
----------------------------------------------*/
.fade_in.right {
  transform: translateX(50px);
}
.fade_in.right.show {
  opacity: 1;
  transform: translateX(0);
  animation: fadeInRightAnimation 1s ease forwards;
}
/* 横から表示のキーフレーム定義 */
@keyframes fadeInRightAnimation {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
/*要素がアップダウンするアニメーション
----------------------------------------------*/
.anime_updown {
  animation: updown 0.6s ease-in-out infinite alternate-reverse;/
}
@keyframes updown {
  0% {
    transform: translateY(15%);
  }
  100% {
    transform: translateY(30%);
  }
}
/*要素のカーテンが開くアニメーション
----------------------------------------------*/
.fade_in.curtain {
  opacity: 0;
  position: relative;
  z-index: -1;
  animation-delay: 0.2s;
  visibility: visible;
  transform: translateY(-50px);
  transition: all 1s;
}
.fade_in.curtain.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  position: relative;
}
.fade_in.curtain.show:before {
  content: '';
  position: absolute;
  z-index: -1;
  right: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: #fff;
  border-top-left-radius: 50px;
  transform: translateX(0);
  animation: curtain 1.3s ease forwards;
}
@keyframes curtain {
  0% {
    width: 100%;
  }
  100% {
    width: 0%;
  }
}


/*新着情報上のシンポジウムバナー
----------------------------------------------*/
.gmp_banner_link {
    text-decoration: none;
    display: block;
    margin: 40px auto 20px;
    max-width: 1000px; /* 横幅の調整 */
    transition: transform 0.3s ease;
}

    .gmp_banner_link:hover {
        transform: translateY(-3px); /* ホバー時に少し浮く */
    }

.gmp_banner_box {
    background-color: #fff;
    border: 3px solid #3B8DAF; /* 学会のメインカラー */
    padding: 20px;
    position: relative;
    border-radius: 4px; /* 少しだけ角を丸く */
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

.gmp_inner {
    text-align: center;
    border: 1px solid #3B8DAF; /* 二重枠のようなデザイン */
    padding: 20px;
}

.gmp_label {
    display: inline-block;
    background-color: #C70069; /* アクセントカラー（ピンク・赤系） */
    color: #fff;
    padding: 2px 15px;
    font-size: 14px;
    font-weight: bold;
    margin-bottom: 10px;
    border-radius: 20px;
}

.gmp_title {
    color: #333;
    font-size: 22px !important;
    font-weight: bold;
    margin-bottom: 10px;
    line-height: 1.4;
}

.gmp_sub {
    color: #3B8DAF;
    font-weight: bold;
    font-size: 18px;
    margin: 0;
}

    .gmp_sub .arrow {
        display: inline-block;
        margin-left: 10px;
        transition: transform 0.3s;
    }

.gmp_banner_link:hover .arrow {
    transform: translateX(5px);
}

/* スマホ・タブレット用の強制リセット */
@media screen and (max-width: 1000px) {
    .news_box {
        display: block !important; /* 横並びをやめて縦に並べる */
        margin-left: 0 !important; /* 左の300pxを消す */
        margin-right: 0 !important; /* 右のはみ出し計算を無効化 */
        padding: 20px !important; /* 余白を画面内に収める */
        width: 100% !important; /* 幅を画面いっぱいにする */
        overflow: hidden !important; /* 絶対にはみ出させない */
    }

        .news_box > * {
            max-width: 100% !important; /* 中身の要素も幅100%に制限 */
            word-wrap: break-word !important; /* 長い英単語などで突き抜けるのを防ぐ */
        }
}


/*リンク
----------------------------------------------*/
.link_title {
    margin-bottom: 20px;
}

.textright_label {
    text-align: right;
    font-size: 13px;
    margin-bottom: 10px;
    color: #888;
}

.link_grid {
    display: grid;
    /* PCでは3列、タブレットでは2列、スマホでは1列に自動調整 */
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 15px;
}

.link_item {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    background: #fff;
    border-left: 4px solid var(--key_color_back); /* 学会カラーの縦線 */
    border-radius: 4px;
    font-size: 15px;
    font-weight: bold;
    color: #444 !important;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

    .link_item:hover {
        background: #f8fbf9;
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        opacity: 1 !important; /* common.cssのa:hoverを打ち消し */
    }

    /* 外部リンクアイコンを自動で付与（お洒落テクニック） */
    .link_item::after {
        content: "↗";
        margin-left: auto;
        font-size: 12px;
        color: #ccc;
    }

.link_hr {
    border: none;
    border-top: 1px dashed #ccc;
    margin: 40px 0 20px;
}

.link_item.special {
    border-left-color: #C70069; /* 日本学術会議だけ色を変える等 */
}


/*journals
----------------------------------------------*/
/* 折りたたみ全体の設定 */
.abstract_details {
    margin-bottom: 10px;
}

/* ボタンのデザイン（summary） */
.abstract_link {
    display: inline-block;
    background: #C70069; /* 学会で使われているアクセントカラー */
    color: #fff;
    padding: 5px 15px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: bold;
    cursor: pointer;
    list-style: none; /* デフォルトの矢印を消す */
    transition: background 0.3s;
}

    .abstract_link:hover {
        background: #a00055;
    }

    /* ブラウザ標準の矢印を消す（Safari/Chrome用） */
    .abstract_link::-webkit-details-marker {
        display: none;
    }

/* 書籍ボタン */
.magazine_abstract_content {
    background: #fdf2f6; /* 薄いピンク背景で「中身」感を出す */
    padding: 20px;
    margin-top: 10px;
    border-left: 4px solid #C70069;
    border-radius: 0 8px 8px 0;
    font-size: 0.95rem;
    line-height: 1.7;
}

    .magazine_abstract_content h3 {
        margin-top: 0;
        margin-bottom: 15px;
        font-size: 1.1rem;
    }

    .magazine_abstract_content dt {
        font-weight: bold;
        color: #C70069;
        margin-top: 10px;
    }

    .magazine_abstract_content dd {
        margin-left: 0;
        margin-bottom: 10px;
    }

.keyword {
    color: #333 !important;
}

/* 年次大会過去 */
.meeting_past_content {
    background: #658B54; /* 緑で統一 */
    padding: 20px;
    margin-top: 10px;
    border-left: 4px solid #235121;
    border-radius: 0 8px 8px 0;
    font-size: 0.95rem;
    line-height: 1.7;
}

    .meeting_past_content h3 {
        margin-top: 0;
        margin-bottom: 15px;
        font-size: 1.1rem;
    }

    .meeting_past_content dt {
        font-weight: bold;
        color: #235121;
        margin-top: 10px;
    }

    .meeting_past_content dd {
        margin-left: 0;
        margin-bottom: 10px;
    }

.keyword {
    color: #333 !important;
}