article {
  position: relative;
  display: block;
  width: 100%;
  box-sizing: border-box;
}
#title {
  position: relative;
  display: block;
  text-align: center;
  line-height: 0;
  margin: 0 auto;
}
section {
  position: relative;
  display: block;
  width: 100%;
}
.n_clr_or {
  color: #FB5D04;
}
/* + media query ++++++++++++++++++++++++++++++++++++++++++++++++ */
@media all and (min-width: 768px) {
  article {
    padding: 12em 0 7em;
  }
  #title {
    height: 2.5em;
  }
  section {
    margin-top: 5em;
  }
}
@media all and (max-width: 767px) {
  article {
    padding: 6em 0 10em;
  }
  #title {
    height: 2em;
  }
  section {
    margin-top: 5em;
  }
}


/* ************************************************************** */
/* news                                                           */
/* ************************************************************** */
#news_wrapper {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  width: 90%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}
#news_wrapper>li {
  position: relative;
  display: block;
}
#news_wrapper>li>a {
  color: #fff;
  text-decoration: none;
}
#news_wrapper>li>a>div {
  position: relative;
  display: block;
  width: 100%;
}
#news_wrapper>li>a>div>img {
  width: 100%;
}
#news_wrapper>li>a>p:nth-of-type(1) {
  font-size: .7em;
  line-height: 1em;
  margin-top: 1em;
}
#news_wrapper>li>a>p:nth-of-type(2) {
  line-height: 1.4em;
  margin-top: .5em;
}
#news_wrapper>li>a>p>span.small {
  display: block;
  color: #FB5D04;
  font-size: .85em;
}
/* + media query ++++++++++++++++++++++++++++++++++++++++++++++++ */
@media all and (min-width: 1100px) {
  #news_wrapper>li {
    width: calc( ( 100% / 3 ) - 1.5em );
  }
  #news_wrapper>li:nth-child(3n) {
    margin-left: calc( 4.5em / 2 );
  }
  #news_wrapper>li:nth-child(3n+1) {
    margin-right: calc( 4.5em / 2 );
  }
  #news_wrapper>li:nth-child(n+4) {
    margin-top: 6em;
  }
}
@media all and (max-width: 1099px) and (min-width: 768px) {
  #news_wrapper>li {
    width: calc( ( 100% / 2 ) - 1.5em );
  }
  #news_wrapper>li:nth-child(2n) {
    margin-left: 3em;
  }
  #news_wrapper>li:nth-child(n+3) {
    margin-top: 6em;
  }
}
@media all and (max-width: 767px) {
  #news_wrapper>li {
    width: 100%;
    margin-top: 4em;
  }
}


/* ************************************************************** */
/* news detail                                                    */
/* ************************************************************** */
article#news_detail p#time {
  position: relative;
  display: block;
  color: #979797;
  font-size: .9em;
  letter-spacing: 0;
  line-height: 1em;
}
article#news_detail h1 {
  position: relative;
  display: block;
  line-height: 1.4em;
  padding: .4em 0;
  box-sizing: border-box;
}
article#news_detail h1::after {
  content: "";
  position: absolute;
  display: block;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background-color: rgba(255, 255, 255, .4);
}
article#news_detail p#time+h1 {
  margin-top: .2em;
  margin-bottom: 1em;
}
article#news_detail h1>span.small {
  color: #FB5D04;
  font-size: .8em;
  letter-spacing: .1em;
}
article#news_detail .flex_2,
article#news_detail .flex_3 {
  position: relative;
  display: flex;
  width: 100%;
}
article#news_detail .flex_3 {
  flex-direction: row;
  justify-content: space-around;
}
article#news_detail .flex_3.spc_bt {
  justify-content: space-between;
}
article#news_detail .flex_3>div {
  width: 28%;
}
article#news_detail .flex_3.spc_bt>div {
  width: 30.5%;
}
article#news_detail h2 {
  position: relative;
  display: block;
  color: #ae8b41;
  font-size: 1.1em;
}
article#news_detail h2::before {
  content: "\25A0";
}
article#news_detail h3 {
  font-size: 1.1em;
}
article#news_detail h3::before {
  content: "\30FB";
}
.yt_wrapper {
  position: relative;
  display: block;
  text-align: center;
}
/* + media query ++++++++++++++++++++++++++++++++++++++++++++++++ */
@media all and (min-width: 768px) {
  article#news_detail {
    width: 90%;
    max-width: 960px;
    margin: 0 auto;
  }
  article#news_detail h1 {
    font-size: 24px;
  }
  article#news_detail .flex_2 {
    flex-direction: row;
    justify-content: space-between;
  }
  article#news_detail .flex_2.center {
    justify-content: center;
  }
  article#news_detail .flex_2>div {
    width: 48%;
  }
  .cur_ptr {
    position: relative;
    cursor: pointer;
  }
  .cur_ptr::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    opacity: 1;
    transition: opacity .5s;
  }
  .cur_ptr:hover::after {
    opacity: 0;
  }
  #art_fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    display: none;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    background-color: rgba(5, 5, 5, 0.8);
    z-index: 3;
    opacity: 0;
    transition: opacity .5s;
  }
  #art_fullscreen>div#close {
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 100%;
    height: 100%;
  }
  #art_fullscreen>img {
    position: relative;
    display: block;
    max-width: 90%;
    max-height: 90%;
    min-height: 0%;
  }
}
@media all and (max-width: 767px) {
  article#news_detail {
    width: 90%;
    margin: 0 auto;
  }
  article#news_detail h1 {
    font-size: 1.3em;
    letter-spacing: .1em;
  }
  article#news_detail .flex_2,
  article#news_detail .flex_3.spc_bt {
    flex-direction: column;
  }
  article#news_detail .flex_3.spc_bt>div {
    width: 100%;
  }
  article#news_detail .flex_2>div:not(:first-child),
  article#news_detail .flex_3.spc_bt>div:not(:first-child) {
    margin-top: 2em;
  }
  .yt_wrapper {
    width: 100%;
  }
  .yt_wrapper::before {
    content: "";
    display: block;
    padding-top: 56.3%;
  }
  .yt_wrapper>iframe {
    position: absolute;
    display: block;
    top: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
  }
  #art_fullscreen {
    display: none !important;
  }
}

article#news_detail span.keep {
  display: inline-block;
  white-space: nowrap;
}
article#news_detail ul.list_dot,
article#news_detail ul.list_notice,
article#news_detail ul.list_number {
  display: table;
  list-style-type: none;
}
article#news_detail ul.list_dot>li,
article#news_detail ul.list_notice>li,
article#news_detail ul.list_number>li {
  display: table-row;
  counter-increment: table-ol;
}
article#news_detail ul.list_dot>li::before {
  content: "\30FB";
  display: table-cell;
}
article#news_detail ul.list_dot>li>ul.list_dot>li::before {
  content: "\FF0D\a0";
}
article#news_detail ul.list_notice>li::before {
  content: "\203B";
  display: table-cell;
}
article#news_detail ul.list_notice.eng>li::before {
  content: "*";
}
article#news_detail ul.list_number>li::before {
  display: table-cell;
}
article#news_detail ul.list_number>li:nth-child(1)::before { content: "\2460"; }
article#news_detail ul.list_number>li:nth-child(2)::before { content: "\2461"; }
article#news_detail ul.list_number>li:nth-child(3)::before { content: "\2462"; }
article#news_detail ul.list_number>li:nth-child(4)::before { content: "\2463"; }
article#news_detail ul.list_number>li:nth-child(5)::before { content: "\2464"; }
article#news_detail ul.table_layout {
  position: relative;
  list-style-type: none;
}

article#news_detail ul.flx_list {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  list-style: none;
}
article#news_detail ul.flx_list a {
  position: relative;
  display: inline-block;
}
article#news_detail ul.flx_list>li>a,
article#news_detail ul.flx_list>li>a>img {
  width: 100%;
}

/* + media query ++++++++++++++++++++++++++++++++++++++++++++++++ */
@media all and (min-width: 768px) {
  article#news_detail ul.table_layout {
    display: table;
  }
  article#news_detail ul.table_layout.wid_100 {
    width: 100%;
  }
  article#news_detail ul.table_layout>li {
    display: table-row;
  }
  article#news_detail ul.table_layout>li>div {
    display: table-cell;
  }
  article#news_detail ul.table_layout>li>div.pr_2em {
    padding-right: 2em;
    box-sizing: border-box;
  }
  article#news_detail ul.table_layout>li>div.pl_1em {
    padding-left: 1em;
    box-sizing: border-box;
  }
  article#news_detail ul.table_layout>li>div:first-child>p {
    word-break: keep-all;
  }
  article#news_detail ul.table_layout>li>div:last-of-type {
    width: 100%;
  }
  article#news_detail ul.table_layout>li>div.nosetwid {
    width: auto;
  }
  article#news_detail ul.flx_list>li {
    width: calc( 20% - 2em );
    margin: 1em 1em 0;
  }
}
@media all and (max-width: 767px) {
  article#news_detail ul.table_layout {
    display: flex;
    flex-direction: column;
  }
  article#news_detail ul.table_layout>li {
    display: flex;
    flex-direction: column;
    padding-bottom: .5em;
    box-sizing: border-box;
  }
  article#news_detail ul.flx_list>li {
    width: calc( 50% - 2em );
    margin: 1em 1em 0;
  }
}

article#news_detail .svg_base {
  display: none;
  visibility: hidden;
}
img.ping {
  width: 1.4em;
  line-height: 0;
}
svg.ping {
  fill: #fff;
  width: 1.4em;
  height: 1.4em;
  transition: fill .25s;
}
svg.ping:hover {
  fill: #ba1d1d;
}
article#news_detail div.list_table>dl {
  width: 100%;
  font-size: .9em;
  font-family: -apple-system,BlinkMacSystemFont,"Helvetica Neue","游ゴシック Medium",YuGothic,YuGothicM,"Hiragino Kaku Gothic ProN",メイリオ,Meiryo,sans-serif;
}
/* + media query ++++++++++++++++++++++++++++++++++++++++++++++++ */
@media all and (min-width: 768px) {
  article#news_detail div.list_table {
    position: relative;
    display: table;
    width: 100%;
    border-collapse: collapse;
    box-sizing: border-box;
  }
  article#news_detail div.list_table>dl {
    display: table-row;
  }
  article#news_detail div.list_table>dl>dd {
    position: relative;
  }
  article#news_detail div.list_table>dl>dd>p.update {
    position: absolute;
    display: block;
    top: 0;
    left: 0;
    bottom: 0;
    margin: auto 0 auto -8em;
    width: 7em;
    height: 2em;
    line-height: 2em;
    letter-spacing: 0;
    font-size: .9em;
    background-color: #ba1d1d;
    color: #fff;
  }
  article#news_detail div.list_table>dl>dd>p.update::after {
    content: "";
    position: absolute;
    display: block;
    top: 0;
    left: 100%;
    font-size: .9em;
    border:      1.2em solid transparent;
    border-left: 1.2em solid #ba1d1d;
  }
  article#news_detail div.list_table>dl>dt,
  article#news_detail div.list_table>dl>dd {
    display: table-cell;
    border: 1px solid #dcdcdc;
    border-collapse: collapse;
  }
  article#news_detail div.list_table>dl:not(:first-child)>dt {
    display: none;
  }
  article#news_detail div.list_table>dl:first-child>dt {
    text-align: center;
    background-color: #dcdcdc;
    color: #252525;
    font-weight: bold;
  }
  article#news_detail div.list_table>dl>dd {
    padding: 1.5em .5em;
    box-sizing: border-box;
    font-size: .9em;
    letter-spacing: .1em;
  }
  article#news_detail div.list_table>dl>dd:last-of-type {
    padding: 1.5em .8em;
  }
  article#news_detail div.list_table>dl>dd:last-of-type,
  article#news_detail div.list_table>dl>dd:nth-of-type(1),
  article#news_detail div.list_table>dl>dd:nth-of-type(2),
  article#news_detail div.list_table>dl>dd:nth-of-type(3) {
    text-align: center;
    vertical-align: middle;
  }
  article#news_detail div.list_table>dl>dd:last-of-type>a {
    line-height: 0;
  }
}
@media all and (max-width: 767px) {
  article#news_detail div.list_table>dl {
    position: relative;
    display: flex;
    flex-wrap: wrap;
  }
  article#news_detail div.list_table>dl:first-child {
    display: none;
  }
  article#news_detail div.list_table>dl:nth-child(n+3) {
    margin-top: 2em;
  }
  article#news_detail div.list_table>dl>* {
    padding: .25em 0;
    box-sizing: border-box;
  }
  article#news_detail div.list_table>dl>dt {
    width: 25%;
  }
  article#news_detail div.list_table>dl>dd {
    width: 75%;
  }
  article#news_detail div.list_table>dl>dt:nth-of-type(1) { order:  0; }
  article#news_detail div.list_table>dl>dd:nth-of-type(1) { order:  1; }
  article#news_detail div.list_table>dl>dt:nth-of-type(2) { order:  2; }
  article#news_detail div.list_table>dl>dd:nth-of-type(2) { order:  3; }
  article#news_detail div.list_table>dl>dt:nth-of-type(3) { order:  4; }
  article#news_detail div.list_table>dl>dd:nth-of-type(3) { order:  5; }
  article#news_detail div.list_table>dl>dt:nth-of-type(4) { order:  6; }
  article#news_detail div.list_table>dl>dd:nth-of-type(4) { order:  7; }
  article#news_detail div.list_table>dl>dt:nth-of-type(5) { order:  8; }
  article#news_detail div.list_table>dl>dd:nth-of-type(5) { order:  9; }
  article#news_detail div.list_table>dl>dt:nth-of-type(6) { order: 10; }
  article#news_detail div.list_table>dl>dd:nth-of-type(6) { order: 11; }
  svg.ping {
    margin-right: .5em;
  }
  svg.ping+span {
    letter-spacing: 0;
    line-height: 1em;
  }
  article#news_detail div.list_table>dl>dt.update {
    width: 100%;
    order: -1;
    color: #FB5D04;
    font-weight: bold;
  }
  article#news_detail div.list_table>dl>dt.update>p::before {
    content: "\25BC";
    
  }
}

article#news_detail table {
  border-collapse: collapse;
}
article#news_detail table>thead>tr>th {
  border: none;
}
article#news_detail table>thead>tr>th>p {
  color: #FB5D04;
  font-weight: bold;
}
article#news_detail table>tbody {
  background-color: rgba(0, 0, 0, .6);
}
article#news_detail table>tbody p {
  letter-spacing: 0;
}
article#news_detail table>tbody>tr>th,
article#news_detail table>tbody>tr>td {
  padding: 1em .5em;
  box-sizing: border-box;
}
article#news_detail table>tbody>tr>th {
  vertical-align: middle;
  width: 10em;
}
article#news_detail table>tbody>tr>th>p {
  font-size: .9em;
  font-weight: bold;
}
article#news_detail table>tbody>tr>td>p {
  font-size: .8em;
}
article#news_detail table th,
article#news_detail table td {
  border: 1px solid #fff;
}

article#news_detail dl.accordion_wrapper {
  position: relative;
  width: 100%;
  border: 1px solid #FB5D04;
  border-collapse: collapse;
  background-color: rgba(0, 0, 0, .6);
}
article#news_detail dl.accordion_wrapper>dt {
  position: relative;
  padding: .5em;
  box-sizing: border-box;
  cursor: pointer;
}
article#news_detail dl.accordion_wrapper>dt>p,
article#news_detail dl.accordion_wrapper>dt::after {
  color: #FB5D04;
  font-weight: bold;
}
article#news_detail dl.accordion_wrapper>dt>p {
  font-size: 1.2em;
}
article#news_detail dl.accordion_wrapper>dt::after {
  content: "\FF0B";
  position: absolute;
  display: block;
  top: 0;
  right: .5em;
  bottom: 0;
  width: 1em;
  height: 1em;
  margin: auto 0;
  font-size: 1.4em;
}
article#news_detail dl.accordion_wrapper>dt.open::after {
  content: "\FF0D";
}
article#news_detail dl.accordion_wrapper>dd {
  display: none;
  padding: .5em 0;
  box-sizing: border-box;
}
article#news_detail dl.accordion_wrapper>dd>dl {
  position: relative;
  width: 100%;
}
article#news_detail dl.accordion_wrapper>dd>dl>dt {
  background-color: #252525;
  padding: .2em 1em;
  box-sizing: border-box;
}
article#news_detail dl.accordion_wrapper>dd>dl>dt>p {
  font-weight: bold;
}
article#news_detail dl.accordion_wrapper>dd>dl>dd {
  margin-bottom: 1.5em;
}
article#news_detail dl.accordion_wrapper>dd>dl>dd {
  padding-top: .5em;
  padding-left: 1em;
  box-sizing: border-box;
}
article#news_detail p>span.sub,
article#news_detail a>span.sub {
  vertical-align: sub;
}
/* + media query ++++++++++++++++++++++++++++++++++++++++++++++++ */
@media all and (min-width: 768px) {
}
@media all and (max-width: 767px) {
}

article#news_detail hr {
  position: relative;
  display: block;
  width: 100%;
  height: 1px;
  border: none;
  border-top: 1px solid rgba(205, 205, 205, 0.6);
  margin-bottom: 0;
  padding: 0;
  box-sizing: border-box;
  border-collapse: collapse;
}


/* ************************************************************** */
/* article_nav                                                    */
/* ************************************************************** */
#article_nav>hr {
  position: relative;
  display: block;
  width: 100%;
  height: 1px;
  border: none;
  border-bottom: 1px solid rgba(255, 255, 255, .4);
  margin: 0;
  padding: 0;
}
#article_nav>ul {
  position: relative;
  display: flex;
  justify-content: space-between;
  width: 100%;
  margin-top: 1em;
}
#article_nav>ul>li {
  position: relative;
  display: block;
  min-height: 0%;
}
#article_nav>ul>li::before {
  position: relative;
  display: block;
  letter-spacing: .3em;
  line-height: 1em;
  margin-bottom: 1.5em;
}
#article_nav>ul>li:nth-child(1)::before {
  content: "次の記事";
}
#article_nav>ul>li:nth-child(2)::before {
  content: "前の記事";
}
#article_nav>ul>li>a {
  position: relative;
  display: flex;
  color: #fff;
  text-decoration: none;
  opacity: 1;
  background-color: rgba(0, 0, 0, 0);
  transition: background-color .5s;
}
#article_nav>ul>li>a:hover {
  background-color: rgba(0, 0, 0, .5);
}
#article_nav>ul>li:nth-child(1)>a {
  flex-direction: row;
  text-align: left;
}
#article_nav>ul>li>a>div:nth-child(1) {
  position: relative;
  display: block;
  width: 40%;
  flex-shrink: 0;
}
#article_nav>ul>li>a>div:nth-child(2) {
  position: relative;
  display: flex;
  width: 60%;
  flex-direction: column;
  box-sizing: border-box;
}
#article_nav>ul>li:nth-child(1)>a>div:nth-child(2) {
  padding-left: 1em;
}
#article_nav>ul>li>a>div:nth-child(2)>p {
  letter-spacing: 0;
}
#article_nav>ul>li>a>div:nth-child(2)>p:nth-child(1) {
  font-size: .8em;
  line-height: 1em;
}
#article_nav>ul>li>a>div:nth-child(2)>p:nth-child(2) {
  font-size: .9em;
  line-height: 1.4em;
  margin-top: 1em;
}
#article_nav>ul>li>a>div:nth-child(2)>p:nth-child(2)>span.small {
  display: block;
  font-size: .9em;
}
/* + media query ++++++++++++++++++++++++++++++++++++++++++++++++ */
@media all and (min-width: 768px) {
  #article_nav>ul {
    flex-direction: row;
  }
  #article_nav>ul>li {
    width: calc( 50% - 1em );
  }
  #article_nav>ul>li:nth-child(2)::before {
    text-align: right;
  }
  #article_nav>ul>li:nth-child(2)>a {
    flex-direction: row-reverse;
    text-align: right;
  }
  #article_nav>ul>li:nth-child(2)>a>div:nth-child(2) {
    padding-right: 1em;
  }
}
@media all and (max-width: 767px) {
  #article_nav>ul {
    flex-direction: column;
  }
  #article_nav>ul>li {
    width: 100%;
  }
  #article_nav>ul>li:nth-child(2) {
    margin-top: 3em;
  }
  #article_nav>ul>li:nth-child(2)>a>div:nth-child(2) {
    padding-left: 1em;
  }
}


div.info_wrapper {
  position: relative;
  display: block;
  border-left: .25em solid #ae8b41;
  border-collapse: collapse;
  padding-left: .75em;
  box-sizing: border-box;
}
div.img_frame {
  min-height: 0%;
}

a.ext_site {
  position: relative;
  display: inline-block;
  text-decoration: none;
}
a.ext_site::after {
  content: "";
  display: inline-block;
  vertical-align: middle;
  margin-left: .5em;
  background-image: url("data:image/svg+xml;base64,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");
  background-position: left top;
  background-repeat: no-repeat;
  background-size: contain;
  width: 1.5em;
  height: 1.5em;
}
/* + media query ++++++++++++++++++++++++++++++++++++++++++++++++ */
@media all and (min-width: 768px) {
}
@media all and (max-width: 767px) {
}


/* ************************************************************** */
/* slideshow                                                      */
/* ************************************************************** */
div.slideshow {
  position: relative;
  display: block;
  width: 100%;
  background-color: #000;
  overflow: hidden;
}
div.slideshow.square {
  margin-left: auto;
  margin-right: auto;
}
div.slideshow::before {
  content: "";
  position: relative;
  display: block;
  padding-top: 56.3%;
}
div.slideshow.square::before {
  padding-top: 100%;
}
div.slideshow>div {
  position: absolute;
  top: 0;
  align-items: center;
  height: 100%;
  box-sizing: border-box;
  cursor: pointer;
  z-index: 1;
}
div.slideshow>div.prev {
  left: 0;
  display: none;
}
div.slideshow>div.next {
  right: 0;
  display: flex;
}
div.slideshow>div.prev::before {
  content: "\FF1C";
}
div.slideshow>div.next::before {
  content: "\FF1E";
}
div.slideshow>div::before {
  position: relative;
  display: block;
  font-weight: bold;
  line-height: 1em;
  letter-spacing: 0;
}
div.slideshow>img {
  position: absolute;
  top: 0;
  display: block;
  width: 100%;
  transition: left .8s;
}
div.slideshow>img:nth-of-type(1) {
  left: 0;
}
div.slideshow>img:nth-of-type(n+2) {
  left: 100%;
}
ul.slidedot {
  position: relative;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: .3em;
  margin: 2em auto 0;
}
ul.slidedot>li {
  position: relative;
  display: block;
  width:  .3em;
  height: .3em;
  background-color: #686868;
  border-radius: 50%;
  margin: 0 1em;
  transition: background-color .5s;
}
ul.slidedot>li.cur {
  background-color: #efefef;
}
/* + media query ++++++++++++++++++++++++++++++++++++++++++++++++ */
@media all and (min-width: 768px) {
  div.slideshow.square {
    width: 80%;
  }
  div.slideshow>div {
    justify-content: center;
    width: 25%;
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 0;
    transition: opacity .5s;
  }
  div.slideshow>div:hover {
    opacity: 1;
  }
  div.slideshow>div::before {
    color: #cdcdcd;
    font-size: 2em;
  }
}
@media all and (max-width: 767px) {
  div.slideshow.square {
    width: 100%;
  }
  div.slideshow>div {
    width: 30%;
  }
  div.slideshow>div.prev {
    justify-content: flex-start;
  }
  div.slideshow>div.next {
    justify-content: flex-end;
  }
  div.slideshow>div::before {
    color: #acacac;
    font-size: 1em;
  }
}