@charset "utf-8";

*, article, aside, canvas, details, figcaption, figure,
header, footer, hgroup, nav, section, summary, main {
  margin: 0;
  padding: 0;
}

html,body{ height:100%;}

/* 背景 */
body {
  line-height: 1.7;  
  color: #333333;
  font-family: Arial, Roboto, "Droid Sans", "メイリオ", Meiryo, "ヒラギノ角ゴ ProN W3", "Hiragino Kaku Gothic ProN", sans-serif;
  font-size: 90%;
  background: linear-gradient(to bottom, rgba(135,206,235,1) 0%,rgba(135,206,235,1) 50%,rgba(135,206,235,0.3) 100%) fixed;
}

/* 画像全体 */
img {
  border: 0;
  vertical-align: top;
  max-width: 100%;
  height: auto;
}

/* 見出し */
h1, h2, h3, h4, h5, h6 {
  font-size: 100%;
  font-weight: normal;
}

/* リスト */
ol, ul, li {
  list-style-image: none;
  list-style-position: outside;
  list-style-type: none;
}

/* テーブル */
table {
  border-collapse: collapse;
}

/* HTML5, 5.1 で追加 */
article, aside, canvas, details, figcaption, figure, footer,
header, hgroup, main, menu, nav, picture, section, summary {
  display: block;
}

/* コンテンツ全体 */
#contents_all {
  max-width:1920px;
  height:auto !important;
  height:100%;
  margin:0 auto;
  min-height:684px;
}

/* ヘッダー */
.header_container {
  padding: 0 120px;
  display: flex;
  column-gap: 135px;
  align-items: center;
  border-bottom: 1px solid #FFFFFF;
  box-sizing: border-box;
}

header a {
  display: flex;
  flex-direction: column;
  pointer-events: none;
  width: 100%;
}

/* コンテンツ */
#contents {
  padding: 0 120px;
  box-sizing: border-box;
  max-width: 1580px;
  display: grid;
  grid-template-columns: minmax(0, 300px) minmax(0, 1000px);
  column-gap: 40px;
}
#contents.top {
  padding: 0 0 0 120px;
  box-sizing: border-box;
  max-width: 1920px;
  grid-template-columns: minmax(0, 300px) minmax(0, 1460px);
}
.hero_top {
  position: relative;
}
.hero_top.sp {
  display: none;
}

/* モーダル 先生用 */
h2.test-president {
  display: grid;
  place-items: center;
  font-size: clamp(16px,1.6vw,24px);
  min-height: 600px;
}
.vbox-close {
  right: 40px !important;
  top: 20px !important;
  padding: 15px !important;
  background: #FFF !important;
  color: #333 !important;
  border-radius: 999% !important;
  border: 1px solid #333 !important;
}


/* テーマ */
.theme-wrap {
  position: absolute;
  top: 7%; /* header+contents_rの高さで割る */
  /* top: 110px; */
  left: 17%;
  /* left: 240px; */
  width: 17%;
  transition: 0.3s all;
  z-index: 2;
  cursor: pointer;
}
.st0 {
  fill: #040000;
}

.theme-wrap:hover .st0 {
  fill: #faed00;
}
.st0:hover {
  opacity: 0.6;
}

/* 総会紹介スライド ここをクリック！ */
.hover-text-right {
  position: fixed;
  pointer-events: none;
  opacity: 0;
  /* transition: opacity 0.2s ease; */
  z-index: 9999;
  display: inline-block;
  background: #FFFFFF;
  padding: 5px 10px;
  border-radius: 4px;
  font-size: 18px;
  font-weight: bold;
}
a.theme-link .hover-text-right {
  color: red;
}
a.theme-link {
  text-decoration: none !important;
}

.hover-text-right.footer,
.hover-text-right.sp_text {
  display: none;
}
.copy_top {
  position: absolute;
  top: 2.4%;
  /* top: 35px; */
  left: 72.6%;
  /* left: 1060px; */
  filter: drop-shadow(0px 0px 1px rgba(0,0,0,0.6));
  width: 11%;
  height: auto;
  z-index: 2;
}

@media screen and (max-width:1580px){

  /* ヘッダー */
  .header_container {
    padding: 0 60px;
  }

  /* コンテンツ */
  #contents {
    padding: 0 60px;
    grid-template-columns: minmax(0, 3fr) minmax(0, 10fr);
    column-gap: 2.5%;
  }
  #contents.top {
    padding: 0 0 0 30px;
    grid-template-columns: minmax(0, 3fr) minmax(0, 10fr);
    column-gap: 2.5%;
  }

  /* 下記は削除しない */
}
@media screen and (max-width:1200px){

  /* ヘッダー */
  .header_container {
    padding: 0 30px;
    column-gap: 7%;
  }

  /* コンテンツ */
  #contents {
    padding: 0 30px;
    grid-template-columns: minmax(0, 3fr) minmax(0, 10fr);
    column-gap: 2.5%;
  }

  /* 下記は削除しない */
}

/* クリアフィクス */
.clearfix:after {
  content: ".";
  display: block;
  clear: both;
  height: 0;
  visibility: hidden;
}

/* メニュー */
nav {
  width: 100%;
  margin: 25px auto 0;
}
ul.menu {
  width: 100%;
  margin-bottom: 20px;
}
ul.menu > li > a {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 100%;
  height: 45px;
  padding: 5px 1em 5px 20px;
  margin-bottom: 5px;
  background: #87CEEB;
  color: #333333;
  border: 1px solid #FFFFFF;
  border-radius: 8px;
  box-sizing: border-box;
  font-weight: bold;
  line-height: 1.2;
  text-decoration: none;
}
ul.menu > li a.on,
ul.menu > li a:hover {
  background: #faed00;
  border: 1px solid #faed00;
}

/* 英語メニュー */
.gnav_en {
  font-weight: bold;
}
ul.menu.en > li > a {
  background: #333333;
  color: #FFFFFF;
}
ul.menu > li a.on,
ul.menu > li a:hover {
  background: #faed00;
  border: 1px solid #faed00;
  color: #333333;
}
.gnav_en_title {
  font-size: 16px;
}

/* hamburger ボタン */
.hamburger {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 60px;
  height: 60px;
  border: 0;
  cursor: pointer;
  position: fixed;
  top: 10px;
  right: 10px;
  z-index: 10;
  background: #333;
  border-radius: 9999px;
}
.hamburger_line {
  position: relative;
  width: 25px;
  height: 3px;
  background: #FFFFFF;
}
.hamburger_line::before,
.hamburger_line::after {
  position: absolute;
  content: "";
  display: block;
  width: 25px;
  height: 3px;
  background: #FFFFFF;
  transition: 0.3s all;
}
.hamburger_line::before {
  top: -8px;
}
.hamburger_line::after {
  bottom: -8px;
}
/* 閉じる */
.hamburger.active .hamburger_line {
  background: transparent;
}
.hamburger.active .hamburger_line::before {
  top: 0;
  transform: rotate(45deg);
}
.hamburger.active .hamburger_line::after {
  bottom: 0;
  transform: rotate(-45deg);
}

.hamburger {
  display: none;
}


/* ここからmain部分 */

/* 右コンテンツ */
#contents_r {
  max-width: 1000px;
  width: 100%;
  position: relative;
}
#contents_r.top {
  max-width: 1460px;
}
#contents_r .link_top {
  text-align: right;
  max-width:1000px;
  margin: 0 auto 25px 0;
  padding-right: 30px;
  box-sizing: border-box;
  line-height: 1.2;
}
#contents_r .link_top a {
  font-size: clamp(11px,1.2vw,12px);
  color: #333333;
  display: inline-block;
}
#contents_r .link_top a.external {
  background: url(../images/external.png) no-repeat right top;
}

/* 新着情報 */
#news {
  margin: 0 auto 25px 0;
  max-width:1000px;
  padding-right: 30px;
  box-sizing: border-box;
}
#news h3.news_title {
  background: #86a145;
  color: #FFFFFF;
  height: 60px;
  line-height: 60px;
  padding: 0 1em;
  box-sizing: border-box;
  font-size: clamp(24px,2.8vw,28px);
  font-weight: bold;
  letter-spacing: 1px;
  border-radius: 6px 6px 0 0;
}
#news_frame {
  width: 100%;
  margin:0 auto;
  font-size: 14px;
  height: 400px;
  padding: 20px 30px;
  box-sizing: border-box;
  overflow:auto;
  border-radius: 0 0 6px 6px;
  background: #FFFFFF;
}
dl.news_item {
  display: grid;
  grid-template-columns: 5em 1fr;
  row-gap: 1em; 
  column-gap: 2em;
  overflow: auto;
  line-height: 1.6;
}
dl.news_item dd a {
  text-decoration: underline;
}
dl.news_item dd a:hover {
  text-decoration: none;
}

/* SNS ボタン */
.social_links {
  width: 40px;
  position: fixed;
  right: 0;
  top: 25%;
  z-index: 2;
  background: #FFFFFF;
  border: 1px solid #FFFFFF;
  border-radius: 8px 0 0 8px;
  box-sizing: border-box;
}
.social_links_list {
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.social_links_item {
  width: 40px;
  height: 40px;
}
.social_links_item:first-child,
.social_links_item:last-child {
  border-radius: 6px 0 0 0;
  background: #ff0177;
}
.social_links_item:last-child {
  border-radius: 0 0 0 6px;
  background: #000000;
}
.social_links_item a {
  display: block;
  width: 100%;
}
.social_links_item:hover {
  opacity: 0.6;
}
/* 押せない */
.social_links_item a {
  pointer-events: none;
}
.social_links_item {
  opacity: 0.6;
}

/* 事務局等 */
#info {
  background: #FFFFFF;
  width: 100%;
  margin: 0 auto;
  line-height: 1.5;
  padding: 40px 0;
  box-sizing: border-box;
  
}
#info .info_wrapper {
  max-width: 1000px;
  padding: 0 120px 0 460px;
  display: grid;
  grid-template-columns: minmax(0, 400px) minmax(0, 400px) minmax(0, 100px);
  gap: 70px;
}

@media screen and (max-width:1580px){

  /* 事務局等 */
  #info .info_wrapper {
    padding: 0 120px 0 24%;
  }

  /* 下記は削除しない */
}
@media screen and (max-width:1366px){

  /* 事務局等 */
  #info .info_wrapper {
    padding: 0 60px;
    margin: auto;
  }

  /* 下記は削除しない */
}

@media screen and (max-width:767px){
 

  /* SNS ボタン */
  .social_links {
    width: 122px;
    position: static;
    right: auto;
    top: auto;
    background: none;
    border: none;
    box-sizing: border-box;

    /*** 総会紹介スライド ここをクリック！ 用 ***/
    
    display: flex;
    align-items: flex-start;
    gap: 60px;

  }
  .social_links_list {
    display: flex;
    flex-direction: row;
    column-gap: 15px;
    margin: 0 20px 20px;
  }
  .social_links_item {
    display: inline-block;
    flex-shrink: 0;
  }
  .social_links_item:first-child,
  .social_links_item:last-child {
    border-radius: 999px;
  }
  #info {
    padding: 20px 0;
  }
  #info .info_wrapper {
    grid-template-columns: 1fr;
    padding: 0 4%;
  }
  #info .logo {
    margin: auto;
  }
}

#info h4 {
  width: 100%;
  border-bottom: 1px solid #333333;
  font-size: clamp(14px,1vw,16px);
  font-weight: bold;
  letter-spacing: 1px;
}
#info address {
  font-style: normal;
  font-size: 12px;
  padding-top: 0.5em;
}
#info .logo {
  margin-left: auto;
}
.page_deco {
  margin: 0 auto 0 280px;
  max-width: 1360px;
}

/* フッター */
footer {
  text-align: center;
  font-size: 12px;
  padding: 6px;
  margin: 0 auto;
  box-sizing: border-box;
  width: 100%;
  background: #ABE1FA;
  /* background: #87CEEB; */
}

/* サブページ内 */
main h2 {
  font-size: clamp(28px,5vw,50px);
  /* font-size: 50px; */
  font-weight: bold;
  letter-spacing: 5px;
  padding: 35px 1em 30px 0;
  color: #faed00;
  text-shadow: 1px 1px 2px rgba(0,98,172,1);
  line-height: 1.2;
}
main h2.en {
  letter-spacing: 1px;
  font-size: clamp(32px,5vw,54px);
}
.main_container {
  padding: 60px;
  box-sizing: border-box;
  min-height:840px;
  background:#FFFFFF;
  border-radius: 10px;
  position:relative;
}

/* サブページ大見出し */
main h3 {
  background: #f1f5ef;
  font-size: 140%;
  font-weight: bold;
  padding: 10px 10px 8px 20px;
  margin: 2em 0 1em;
  border-left: 10px solid #4b6f44;
  border-bottom: 2px solid #BBBBBB;
}

/* 一番最初にくる時はアキなしにする場合はここに書き足す */
main h3:first-child, main h4:first-child, main h5:first-child, main p:first-child, main table tr td p:first-child {
  margin-top: 0;
}

/* 組み合わせでアキなしする場合はここに書き足す */
main h3 + h4, main h4 + h5, main h3 + p ,main h4 + p, main h5 + p {
  margin-top:0;
}

main h4 {
  margin-top: 1.5em;
  margin-bottom: 0.75em;
  font-size: 130%;
  font-weight: bold;
  background: #e3ecfa;
  color: #123972;
  padding: 0.5em 0.8em 0.35em;
}
/* サブページ小見出し  */
main h5 {
  margin: 1em 0 0.2em 0;
  margin-bottom: 0.5em;
  padding: 0.2em;
  font-weight: bold;
  color: #123972;
  border-bottom: 2px dotted #123972;
}


/* サブページ段落 */
main p {
  margin-top: 1em;
}
main p.zero {
  margin-top: 0;
}
main p.han {
  margin-top: 0.5em;
}

/* サブページリスト */
main ul {
  margin-left: 1em;
}
main ul li {
  list-style: disc;
}
main ul.half li {
  margin-bottom: 0.5em;
}
main ol {
  margin-left: 1.5em;
}
main ol li {
  list-style: decimal;
}


/* サブページリスト */
main ul {
  margin-left: 1em;
}
main ul li {
  list-style: disc;
}
main ul.aki li {
  padding-bottom: 0.5em;
}
main ol {
  margin-left: 1.5em;
}
main ol li {
  list-style: decimal;
}
main ol.aki li {
  padding-bottom: 0.5em;
}

/* 只今準備中です。 */
p.jyunbi {
  text-align: center;
  padding-top: 100px;
}

/* 挨拶 */
main.greet p {
  line-height: 1.9;
  text-indent:1em;
  margin-top: 0;
}
main .wrapper_greet {
  display: flex;
  justify-content: flex-start;
  align-items: flex-end;
  margin: 0 0 30px;
}
main .wrapper_greet > p {
  line-height: 1.6;
  text-indent: 0;
  text-align: left;
}
main .wrapper_greet > p:last-child {
  margin-left: 15px;
}
main .wrapper_greet img {
  padding: 1px;
  border: 1px solid #CCCCCC;
}

/* 開催概要 */
table.hyou_info{
  border-collapse:collapse;
  width:100%;
}
table.hyou_info th{
  border-top:1px solid #a52a2a;
  border-bottom:1px solid #a52a2a;
  padding:1em 1.5em 1em 0.5em;
  vertical-align:top;
  white-space:nowrap;
  text-align:left;
  color:#555;
  width:10%;
}
table.hyou_info td{
  border-top:1px solid #a52a2a;
  border-bottom:1px solid #a52a2a;
  padding:1em 0 1em 0.5em;
  vertical-align:top;
  text-align:left;
}

/* 協賛募集のご案内 */
table.sponsor_hyou {
  margin: 1em auto;
}
table.sponsor_hyou td {
  border: 1px solid #666666;
  background-color: #FFFFFF;
  padding: 0.75em 1em;
  vertical-align: middle;
  text-align: center;
}
table.sponsor_hyou th {
  border: 1px solid #666666;
  background-color: #033787;
  padding: 0.75em;
  vertical-align: middle;
  text-align: center;
  font-weight: bold;
  color: #FFFFFF;
}
.dl_box_sponsor {
  display: flex;
  justify-content:space-around;
  flex-wrap: wrap;
}
.button_sponsor {
  width: 140px;
  text-align: center;
  background-color: #033787;
  color: #ffffff;
  cursor: pointer;
  font-size:16px;
  box-shadow: 4px 4px 2px rgba(0, 0, 0, 0.2);
  height:36px;
}

.button_sponsor a {
  width: 100%;
  height: 100%;
  color: #ffffff;
  text-decoration: none;
  font-weight:bold;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.button_sponsor:hover {
  opacity: 0.6;
  text-decoration: none;
}
.button_sponsor:hover a {
  color: #FFFFFF;
  text-decoration: none;
}
.button_sponsor a:visited, .button_sponsor a:link {
  color: #FFFFFF;
  text-decoration: none;
}

/* endai */

/* 別ページで開く------------------- */

/* 別ページで開くここまで------------------- */

/* kigyo */

/* accsess*/

/* リンク */
p.link {
  background:url(../images/icon_link.png) no-repeat left center;
  padding-left:20px;
  margin-bottom:0;
}
p.link a:link,p.link a:visited {
  color:#333333;
  text-decoration:none;
}
p.link a:hover,p.link a:active {
  color:#666666;
  text-decoration:underline;
}

/* 文章中のリンク */
a:link, a:visited {
  color: #0066CC;
  text-decoration: none;
}
a:hover, a:active {
  color: #0066CC;
  text-decoration: underline;
}

/* pagetop */
.pagetop {
  display: none;
  position: fixed;
  bottom: 70px;
  right: 95px;
  z-index: 3;
}
.pagetop a {
  display: block;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: rgba(35,24,21,.8);
  border: 1px solid #fff;
  position: relative;
  font-size: 0;
}
.pagetop a::before {
  content: "";
  position: absolute;
  top: 27px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-bottom: 14px solid #fff;
}
.pagetop a:hover {
  opacity: 0.6;
}

/* 外部リンク */
a.external {
  background: url(../images/external.png) no-repeat right center;
  padding-right: 20px;
}

/* テンプレート */
table.hyou_aaa {
  width: 100%;
  margin-bottom: 1em;
}
table.hyou_aaa td {
  border: 1px solid #666666;
  background-color: #FFFFFF;
  padding: 0.5em;
  vertical-align: top;
  text-align: left;
}
table.hyou_aaa th {
  border: 1px solid #666666;
  background-color: #F9F9F9;
  padding: 0.5em;
  vertical-align: top;
  text-align: left;
  font-weight: normal;
  width: 20%;
}
table.hyou_aaa tr {
  padding: 0.5em;
  vertical-align: top;
  text-align: left;
}

/* table line_none */
table.non {
  border: none;
}
table.non td {
  text-align: left;
  vertical-align: top;
}
table.non th {
  text-align: left;
  vertical-align: top;
  white-space: nowrap;
  font-weight: normal;
}

/* ※一字下げ */
.kome{
  padding-left:1em;
  text-indent:-1em;
}

/* text */
.mbm1 {margin-bottom:-1em;}
.mb1 {margin-bottom:1em;}
.mb2 {margin-bottom:2em;}
.mb03 {margin-bottom:0.3em;}
.mb05 {margin-bottom:0.5em;}
.mb15 {margin-bottom:1.5em;}

.pl05 {padding-left:0.5em;}

.ml1 {margin-left:1em;}

.f85 {font-size:85%;}
.f90 {font-size:90%;}
.f95 {font-size:95%;}
.f100 {font-size:100%;}
.f105 {font-size:105%;}
.f110 {font-size:110%;}
.f115 {font-size:115%;}
.f120 {font-size:120%;}

.uchikeshi {
   background:
url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAABGdBTUEAAK/INwWK6QAAAANQTFRFAAAAp3o92gAAAApJREFUCB1jYAAAAAIAAc/INeUAAAAASUVORK5CYII=)
0 center repeat-x;
}
.uchikeshi.red {
   background:
url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAABGdBTUEAAK/INwWK6QAAAANQTFRF/wAAGeIJNwAAAApJREFUCB1jYAAAAAIAAc/INeUAAAAASUVORK5CYII=
) 0 center repeat-x;
}
.underline {
  text-decoration:underline;
}
.red {color: #FF0000;
}
.blue {color: #1d2777;
}

/* 太字 */
.bold{
  font-style:normal;
  font-weight:bold;
}

.text_r{
  text-align:right;
}
.text_c{
  text-align:center;
}

/* ボタン */
.button {
  width: 270px;
  border-radius: 9999px;
  text-align: center;
  background-color: #e3ecfa;
  border: 2px solid #033787;
  cursor: pointer;
  font-size:18px;
  box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.2);
  position: relative;
  height:60px;
}

.button a {
  width: 100%;
  height: 100%;
  color: #033787;
  text-decoration: none;
  font-weight:bold;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  border-radius: 9999px;/*長円形作成*/
}
.button:hover {
  background: #033787;
}
.button:hover a {
  color: #FFFFFF;
}
.button_400 {
  width: 400px;
}
.button_190 {
  width: 190px;
}
.button_2line {
  height:60px;
  padding:0;
  line-height: 1.2;
}
.button_3line {
  height:84px;
  padding:0;
  border-radius: 9999px;
  line-height: 1.2;
}

/* 反応しないボタン */
.button_gray {
  width: 270px;
  border-radius: 9999px;/*長円形作成*/
  text-align: center;
  background-color: #BBBBBB;
  font-size:18px;
  font-weight: bold;
  color:#FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  height:60px;
}

/* ボタン  アイコン */
.pdf_icon a::after {
  content: '';
  display: inline-block;
  position: absolute;
  top: calc(50% - 12px);
  right: 20px;
  background: url('../images/icon_pdf-25px.png') no-repeat;
  width:25px;
  height:25px;
}

.dl_box {
  display: flex;
  justify-content:space-around;
  flex-wrap: wrap;
  margin:1em 0;
}
.dl_item {
  margin: 10px;
}



/* PCで表示 */
.pc_only {
  display: inline-block;
}
/* PCでは非表示 */
.sp_only, .tb_only, .pc_none {
  display: none;
}

/*------------------------------------------*/
/* タブレット用 */
/*------------------------------------------*/
@media screen and (max-width:1100px){
  /* タブレットで表示 */
  .tb_only, .pc_none {
    display: inline-block;
  }
  /* タブレットでは非表示 */
  .pc_only, .sp_only {
    display: none;
  }

  /* hamburger ボタン */
  .hamburger {
    display: flex;
  }
  body.no-scroll {
    overflow: hidden;
  }

  /* ヘッダー */
  .header_container {
    padding: 5px 100px 5px 30px;
    align-items: center;
    min-height: 80px;
  }
  p.img_outline {
    display: none;
  }
  
  .hero_top {
    display: none;
  }
  .hero_top.sp {
    display: block;
  }
  .copy_top {
    left: 82%;
    width: 13%;
  }
  /* コンテンツ */
  #contents {
    padding: 0 2.5%;
    grid-template-columns: 1fr;
  }
  #contents_r .link_top {
    padding-right: 2.5%;
  }
  
  /* メニュー */
  .gnav {
    display: none;
    width: 40%;
    position: fixed;
    top: 100px;
    right: 0;
    z-index: 3;
    background: #FFFFFF;
    max-height: 80dvh; /* 画面の高さに合わせて調整 */
    overflow-y: auto; /* 垂直方向のスクロールを有効化 */

    transform: translateX(100%); /* 画面外へ隠す */
    transition: transform 1.5s ease; 
  }
  .gnav.active {
    transform: translateX(0);
    display: block;
  }
  
  /* メニュー */
  nav {
    padding: 20px;
    box-sizing: border-box;
    border-radius: 6px;
  }
  ul.menu {
    margin-bottom: 10px;
  }

  #contents_r.top {
    background: linear-gradient(to bottom, rgba(255,255,255,1) 70%,rgba(135,206,235,1) 100%) no-repeat; 
  }
  #contents.top {
    padding: 0;
    grid-template-columns: 1fr;
  }
  /* テーマ */
  .theme-wrap {
    position: absolute;
    top: 7.5%;
    left: 15%;
    width: 24%;
  }
  /* 総会紹介スライド ここをクリック！ */
  .hover-text-right {
    position: absolute;
    left: -50%;
    bottom: 0px;
    writing-mode: vertical-rl;
    text-orientation: upright;
    display: inline-block;
    font-size: clamp(14px,1vw,16px);
    color: #333333;
    background: rgba(255, 255, 255, 0.6);
    padding: 8px;
    border-radius: 4px;
    transition: opacity .3s;
    white-space: nowrap;
    opacity: 1;

    pointer-events: all;

   /* 超高速ストロボ */
    animation: hoverFlash 1.8s linear infinite;
  }
  @keyframes hoverFlash {
    0%   { opacity: 0; transform: scale(0.9); }
    20%  { opacity: 1; transform: scale(1); }
    50%  { opacity: 1; transform: scale(1); }
    100% { opacity: 0; transform: scale(0.9); }
  }


  .hover-text-right.sp_text {
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 220px;
    text-align: center;
    margin: 0 auto 1em;
    border: 1px solid red;
    color: red;
    padding: 2px 1em;
    position: static;
    left: auto;
    writing-mode: horizontal-tb;   /* 横書きに戻す */
    text-orientation: mixed;       /* 通常の横書き */
  }

  /* 総会紹介スライド ここをクリック！ */
  .hover-text-right.footer {
    display: flex;
    justify-content: center;
    align-items: center;
    width: fit-content;
    margin: -2em 5% 2em auto;
    border: 1px solid red;
    color: red;
    padding: 2px 1em;
    position: static;
    writing-mode: horizontal-tb;   /* 横書きに戻す */
    text-orientation: mixed;       /* 通常の横書き */
  }
  


  /* 事務局等 */
  #info .info_wrapper {
    padding: 0 2.5%;
    gap: 20px;
  }

  /* 新着情報 */
  #news {
    max-width:none;
    margin: 0 auto 25px;
    padding: 0 2.5%;
  }

   /* オーバーレイは初期非表示 */
  .overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;  /* 画面いっぱい */
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.4); /* 半透明の黒 */
    opacity: 0;
    pointer-events: none; /* 非アクティブ */
    transition: opacity 0.3s ease;
    z-index: 2; /* メニューより下 */
  }
  .overlay.active {
    opacity: 1;
    pointer-events: auto; /* クリック可能に */
  }

  /* サブページ内 */
  main h2 {
    /* font-size: 36px; */
    letter-spacing: 1px;
    padding: 25px 20px 25px 0;
  }
  .main_container {
    padding: 30px 5%;
  }



  .page_deco {
    margin: 0 auto;
  }

  /* pagetop */
  .pagetop {
    bottom:80px;
    right:2.5%;
  }

  /* 下記は削除しない */
}

/*------------------------------------------*/
/* スマホ用 767px  */
/*------------------------------------------*/
  @media screen and (max-width:767px){
  /* スマホで表示 */
  .sp_only, .pc_none {
    display: inline-block;
  }
  /* スマホでは非表示 */
  .pc_only, .tb_only, .sp_none {
    display: none;
  }

  /* メニュー */
  .gnav {
    width: 100%;
  }
  /* ここからmain部分 */

  /* 右コンテンツ */
  #contents_r {
    min-width: 0;
  }

  #contents_r .link_top {
    margin: 0 auto 15px 0;
    padding-right: 2.5%;
  }
  /* テーマ */
  .theme-wrap {
    left: 18%;
  }

  /* 挨拶 */
  main .wrapper_greet {
    flex-direction: column;
    align-items: center;
    }
  main .wrapper_greet > p {
    margin-bottom: 1em;
    text-align: center;
  }
  main .wrapper_greet > p:last-child {
    margin-left: 0;
    margin-bottom: 0;
  }
  .wrapper_greet p span {
    display: inline-block;
    padding: 0.5em 0 0;
  }

  /* 協賛募集のご案内 */
  table.sponsor_hyou td {
    padding: 0.5em;
  }
  table.sponsor_hyou th {
    padding: 0.5em;
  }
  .button_sponsor {
    width: 100px;
    font-size:12px;
    height:30px;
  }

  
  /* 下記は削除しない */
}

/*------------------------------------------*/
/* スマホ用 576px  */
/*------------------------------------------*/
  @media screen and (max-width:576px){

  main.active,
  .page_deco.active, 
  #info.active, 
  footer.active {
    display: none;
  }

  /* ヘッダー */
  .header_container {
    display: flex;
    align-items: center;
    padding: 0 80px 0 5%;
    height: 110px;
  }
  header {
    position: sticky;
    top: 0;
    /* background: #ABE1FA; */
    background: #87CEEB;
    z-index: 3;
  }
  header a {
    pointer-events: all;
  }

  /* モーダル 先生用 */
  .vbox-close {
    right: 20px !important;
  }
  /* テーマ */
  .theme-wrap {
    top: 7%;
    left: 20%;
  }
  
  /* 総会紹介スライド ここをクリック！ */
  .hover-text-right {
    position: absolute;
    left: -65px;
    bottom: -60px;
    font-size: 12px;
    padding: 5px 2px;

      /* 超高速ストロボ */
    animation: hoverFlash 1.8s linear infinite;
  }
  @keyframes hoverFlash {
    0%   { opacity: 0; transform: scale(0.9); }
    20%  { opacity: 1; transform: scale(1); }
    50%  { opacity: 1; transform: scale(1); }
    100% { opacity: 0; transform: scale(0.9); }
  }

  /* 総会紹介スライド ここをクリック！ */
  .hover-text-right.footer {
    margin-top: -5em;
  }

/* hamburger ボタン */
  .hamburger {
    width: 55px;
    height: 55px;
    top: 10px;
    right: 5px;
  }

  /* 新着情報 */
  #news {
    margin: 0 auto 35px;
    padding: 0 2.5%;
  }
  #news h3.news_title {
    height: 50px;
    line-height: 50px;
    padding: 2px 1em 0 0.5em;
  }
  #news_frame {
    height: 300px;
    padding: 20px 5%;
  }
  dl.news_item {
    display: grid;
    grid-template-columns: 1fr;
    row-gap: 0; 
    overflow: auto;
    line-height: 1.6;
  }
  dl.news_item dd {
    padding-bottom: 1em;
  }


  /* サブページ内 */
  .main_container {
    min-height:500px;
  }
  main h2 {
    /* font-size: 28px; */
    padding: 5% 2.5%;
  }
  main h3 {
    font-size: 120%;
    padding:8px 12px;
  }
  main h4 {
    font-size: 105%;
  }

  /* pagetop */
  .pagetop {
    bottom:50px;
  }

  /* 下記は削除しない */
}