@charset "UTF-8";
/*---------------------------------------------
  カスタム
---------------------------------------------*/
html,
body {
  height: 100%;
  color: #333;
  font-family: "Noto Sans JP", serif;
  font-size: 10px;
  -webkit-text-size-adjust: 100%;
}

a {
  text-decoration: none;
  display: inline-block;
  transition-duration: 0.3s;
}

a:hover,
a:active {
  text-decoration: none;
}

*, *:after, *:before {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

img {
  max-width: 100%;
}

sup, sub {
  font-size: 50%;
}

#contents {
  overflow: hidden;
}

.en {
  font-family: "Noto Sans", sans-serif;
}

#wrap {
  font-size: 1.6rem;
}

body.is-fixed {
  overflow-y: scroll;
}

body.is-fixed #wrap {
  position: fixed;
  width: 100%;
}

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  position: fixed;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: #fff;
  padding: 16px;
  z-index: 1000;
}
.loading .load-contents {
  max-width: 630px;
}
.loading.end {
  opacity: 0;
  pointer-events: none;
  display: none;
}

#header {
  position: sticky;
  top: 0;
  width: 100%;
  margin: 0 auto;
  background-color: #fff;
  z-index: 99;
  display: flex;
  justify-content: center;
}
#header .header-inner {
  display: flex;
  padding-left: 40px;
  padding-bottom: 20px;
  align-items: end;
  width: 100%;
}
#header .logo-wrap .logo {
  display: block;
  min-width: 440px;
}
#header .link-wrap {
  display: flex;
  flex-direction: column;
  align-items: end;
  flex-wrap: wrap;
  margin-right: 0;
  margin-left: auto;
}
#header .denka-logo {
  padding-top: 16px;
  padding-bottom: 20px;
  margin-right: 40px;
}
#header .bottom-wrap {
  display: flex;
  padding-left: 110px;
  padding-right: 40px;
  padding: 0 40px 0 110px;
  gap: 24px;
}
#header .header-link-list {
  display: flex;
  align-items: center;
  gap: 24px;
}
#header .header-link-list li a {
  position: relative;
  color: #003C8C;
  font-size: 1.6rem;
  line-height: 1.375;
  font-weight: 700;
}
#header .header-link-list li a[target=_blank]::after {
  content: "";
  display: inline-block;
  position: relative;
  top: -2px;
  width: 16px;
  height: 16px;
  margin-left: 4px;
  vertical-align: middle;
  background: url(/assets/images/icn_external.svg) no-repeat left top/16px auto;
}
#header .header-btn-wrap {
  position: absolute;
  top: 100%;
  right: 0;
}
#header .header-btn-wrap .mail-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 12px 42px;
  color: #fff;
  font-weight: 700;
  font-size: 1.6rem;
  line-height: 1.5;
  background-color: #003C8C;
}
#header .header-btn-wrap .mail-btn::before {
  content: "";
  display: inline-block;
  width: 20px;
  height: 15px;
  margin-right: 10px;
  background: url(/assets/images/icn_mail.svg) no-repeat left top/20px auto;
}
#header .language {
  padding-right: 4px;
}
#header .language a {
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
  color: #000;
}
#header .language a::before {
  content: "";
  display: inline-block;
  width: 16px;
  height: 16px;
  background: url(/assets/images/icn_global.svg) no-repeat left top/16px auto;
}

#footer {
  padding: 80px 0 40px;
  background-color: #F7F9FF;
  position: relative;
}
#footer .inner-wrap {
  position: relative;
}
#footer .ft-bottom {
  display: flex;
  align-items: center;
  margin-top: 60px;
}
#footer .ft-link-list {
  display: flex;
  gap: 32px;
}
#footer .ft-link-list li a {
  color: #333333;
  font-size: 1.2rem;
}
#footer .ft-link-list li a[target=_blank]::after {
  content: "";
  display: inline-block;
  margin-left: 4px;
  margin-top: -2px;
  width: 16px;
  height: 16px;
  vertical-align: middle;
  background: url(/assets/images/icn_external_black.svg) no-repeat left top/16px auto;
}
#footer .privacy-link-wrap {
  margin-right: 0;
  margin-left: auto;
}
#footer .ft-link-txt {
  color: #333333;
  font-size: 1.2rem;
}
#footer .ft-link-txt[target=_blank]::after {
  content: "";
  display: inline-block;
  width: 16px;
  height: 16px;
  margin-left: 4px;
  margin-top: -2px;
  vertical-align: middle;
  background: url(/assets/images/icn_external_black.svg) no-repeat left top/16px auto;
}
#footer .copy {
  margin-top: 64px;
  color: #959595;
  font-size: 1.2rem;
  text-align: center;
}

.top-btn-wrap {
  position: fixed;
  right: 48px;
  bottom: 48px;
  overflow: hidden;
  z-index: 10;
}
.top-btn-wrap.end {
  position: absolute;
  bottom: calc(100% + 92px);
}
.top-btn-wrap .top-btn {
  display: block;
  width: 72px;
  height: 72px;
  background: url(/assets/images/icn_page_top.svg) no-repeat center/cover;
  text-indent: -9999px;
}

.header-inner,
#wrap {
  min-width: 1100px;
}

.anchor-point {
  margin-top: -106px;
  padding-top: 106px;
}

.inner-wrap {
  width: 1100px;
  margin: 0 auto;
}
.inner-wrap + .inner-wrap, .inner-wrap + .inner-s-wrap {
  margin-top: 96px;
}

.inner-s-wrap {
  width: 800px;
  margin: 0 auto;
}
.inner-s-wrap + .inner-s-wrap, .inner-s-wrap + .inner-wrap {
  margin-top: 96px;
}

.breadcrumbs {
  padding-top: 56px;
}
.breadcrumbs ul {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
}
.breadcrumbs ul > li {
  padding-right: 12px;
  color: #707070;
}
.breadcrumbs ul > li + li {
  padding-left: 20px;
  position: relative;
}
.breadcrumbs ul > li + li::before {
  content: "";
  display: block;
  position: absolute;
  width: 9px;
  height: 16px;
  left: 0;
  top: 6px;
  background: url(/assets/images/icn_breadcrumbs_arr.svg) no-repeat center/9px 16px;
}
.breadcrumbs ul > li a {
  color: #707070;
  text-decoration: underline;
}

.main-visual {
  display: flex;
  margin: 0 auto;
  justify-content: center;
  height: 802px;
}
.main-visual .main-area {
  color: #fff;
  padding: 140px 92px;
  width: 50%;
  background: url(/assets/images/bg_mv.jpg) no-repeat right center/cover;
  display: flex;
  flex-direction: column;
  align-items: end;
}
.main-visual .main-area .main-ttl {
  font-family: "Zen Old Mincho", serif;
  font-size: 4.9rem;
  line-height: 1.8979591837;
  margin-bottom: 46px;
}
.main-visual .main-area .sub {
  font-family: "游明朝体", "Yu Mincho", YuMincho, serif;
  font-size: 1.8rem;
  line-height: 1.9444444444;
}
.main-visual .main-img {
  width: 50%;
  transform: translateY(-100px);
  background: url(/assets/images/img_main_visual.jpg) no-repeat left center/cover;
}

.features-section {
  padding-top: 240px;
  background: url(/assets/images/bg_features.jpg) no-repeat left top/1366px auto;
}

.features-contents {
  position: relative;
  padding-top: 140px;
  padding-bottom: 64px;
  width: 462px;
}
.features-contents .features-txt .normal-txt {
  font-size: 1.8rem;
  line-height: 1.7777777778;
}
.features-contents .features-txt .normal-txt + .normal-txt {
  margin-top: 28px;
}
.features-contents .features-img {
  left: 506px;
  bottom: 0;
  position: absolute;
  width: 784px;
  height: 552px;
}

.features-ttl-wrap {
  margin-bottom: 40px;
}
.features-ttl-wrap .features-ttl {
  font-size: 4rem;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.04em;
  font-family: "Zen Old Mincho", serif;
}

.about-section {
  padding-top: 240px;
  background: url(/assets/images/bg_about.jpg) no-repeat right top/1366px auto;
}
.about-section .btn-wrap {
  margin-top: 48px;
}

.about-ttl-wrap {
  margin-bottom: 40px;
}
.about-ttl-wrap .about-ttl {
  font-size: 4rem;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.04em;
  text-align: center;
  font-family: "Zen Old Mincho", serif;
}

.about-contents .normal-txt {
  font-size: 1.8rem;
  line-height: 1.7777777778;
}
.about-contents .normal-txt + .normal-txt {
  margin-top: 24px;
}

.youtube-box {
  position: relative;
  height: 450px;
  margin-bottom: 32px;
}
.youtube-box iframe {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.loop-box {
  overflow: hidden;
  position: relative;
  height: 280px;
}
.loop-box .txt-loop-animation {
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  bottom: 0;
  left: 0;
  width: 3652px;
  line-height: 1;
  white-space: nowrap;
}
.loop-box .txt-loop-animation p {
  animation: txt-loop-animation 20s linear infinite;
}
@keyframes txt-loop-animation {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-100%);
  }
}

.product-section {
  padding-top: 140px;
}

.products-ttl-wrap {
  margin-bottom: 48px;
}
.products-ttl-wrap .products-ttl {
  font-size: 4rem;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.04em;
  font-family: "Zen Old Mincho", serif;
}

.link-tile-wrap {
  display: flex;
  gap: 108px;
  flex-wrap: wrap;
}
.link-tile-wrap .link-tile {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  width: calc((100% - 108px) / 2);
  overflow: hidden;
  color: #333;
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16);
}
.link-tile-wrap .link-tile .txt-wrap {
  display: flex;
  flex-direction: column;
  flex-grow: 2;
  position: relative;
  padding: 24px 12px 36px;
  overflow: hidden;
}
.link-tile-wrap .link-tile .txt-wrap::before {
  content: "";
  display: block;
  width: 100%;
  height: 8px;
  width: calc(100% + 1px);
  background-color: #003C8C;
  position: absolute;
  top: -1px;
  left: -1px;
  transition: transform 0.4s cubic-bezier(0.19, 1, 0.22, 1);
  transform-origin: right center;
  transform: scale(0, 1);
}
.link-tile-wrap .link-tile .txt-wrap .ttl {
  flex-grow: 3;
  font-size: 2.4rem;
  line-height: 1.5;
  margin-bottom: 20px;
}
.link-tile-wrap .link-tile .txt-wrap .txt {
  font-size: 1.8rem;
  line-height: 1.4444444444;
}
.link-tile-wrap.col1 {
  max-width: 320px;
  margin: 0 auto;
}
.link-tile-wrap.col1 .txt-wrap {
  padding: 20px 10px 14px;
}
.link-tile-wrap.col1 .txt-wrap .ttl {
  font-size: 2rem;
  line-height: 1.5;
  margin-bottom: 18px;
}
.link-tile-wrap.col1 .txt-wrap .txt {
  font-size: 1.6rem;
  line-height: 1.5;
}

.other-products-ttl {
  margin: 120px 0 32px;
  font-size: 2.4rem;
  font-weight: 700;
  text-align: center;
  line-height: 1.5;
}

.news-section {
  margin-top: 240px;
  padding-bottom: 365px;
  background: url(/assets/images/bg_news_body.jpg) no-repeat left bottom/1366px auto;
}
.news-section .btn-wrap {
  margin-top: 100px;
}

.news-ttl-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 100px;
  height: 220px;
  background: url(/assets/images/bg_news.jpg) no-repeat center/cover;
}
.news-ttl-wrap .news-ttl {
  font-size: 4rem;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.04em;
  font-family: "Zen Old Mincho", serif;
}

.news-list {
  border-top: 1px solid #EEE;
}
.news-list li {
  border-bottom: 1px solid #EEE;
}
.news-list li .news {
  display: flex;
  position: relative;
  padding: 40px 0;
  color: #959595;
  font-size: 1.8rem;
  line-height: 1.4444444444;
  overflow: hidden;
}
.news-list li .news .date {
  color: #003C8C;
  padding-right: 55px;
  margin-right: 55px;
  border-right: 1px solid #003C8C;
}
.news-list li .news .txt {
  background: linear-gradient(transparent 95%, #003C8C 95%);
  background-repeat: no-repeat;
  background-size: 0% 100%;
  transition-duration: 0.3s;
}

.contents-section {
  padding-top: 80px;
}

.h1-ttl {
  margin-bottom: 32px;
}
.h1-ttl .ttl {
  font-size: 3.2rem;
}

.h2-ttl {
  margin-bottom: 32px;
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.4166666667;
}

* + .h2-ttl {
  margin-top: 64px;
}

.bd-ttl {
  margin-bottom: 32px;
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.4166666667;
  padding-left: 20px;
  position: relative;
}
.bd-ttl::before {
  content: "";
  display: block;
  position: absolute;
  width: 10px;
  height: 30px;
  top: 2px;
  left: 0;
  background-color: #003C8C;
  opacity: 0.6;
}

* + .bd-ttl {
  margin-top: 64px;
}

.h3-ttl {
  font-size: 2rem;
  line-height: 1.5;
  margin-bottom: 32px;
}

* + .h3-ttl {
  margin-top: 64px;
}

.normal-txt {
  font-size: 1.8rem;
  line-height: 2.2222222222;
}

.products-img {
  text-align: center;
}

.products-img + .normal-txt {
  margin-top: 32px;
}

* + .products-img {
  margin-top: 32px;
}

.dots-list li {
  font-size: 1.8rem;
  line-height: 1.4444444444;
  position: relative;
  padding-left: 32px;
}
.dots-list li::before {
  content: "";
  display: block;
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  background: url(/assets/images/icn_dots.svg) no-repeat left top/cover;
}
.dots-list li + li {
  margin-top: 26px;
}

.img-flx-box {
  display: flex;
  gap: 42px;
}
.img-flx-box .txt-wrap {
  flex: 1;
}

.img-grid-box {
  display: grid;
}
.img-grid-box.col2 {
  grid-template-columns: repeat(2, 1fr);
  grid-column-gap: 60px;
}
.img-grid-box.col4 {
  grid-template-columns: repeat(4, 1fr);
  grid-column-gap: 25px;
}
.img-grid-box .txt {
  margin-top: 16px;
  font-size: 1.8rem;
  line-height: 1.4444444444;
}

.btn-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  margin-top: 120px;
}
.btn-wrap + .btn-wrap {
  margin-top: 96px;
}

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 446px;
  padding: 22px 24px;
  color: #fff;
  background-color: #003c8c;
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.4166666667;
  text-align: center;
  border: 1px solid #003c8c;
  border-radius: 80px;
}
.btn.bd-btn {
  color: #003c8c;
  background-color: #fff;
}
.btn.small {
  font-size: 2rem;
  line-height: 1.2;
  padding: 27px;
}

.contact-section {
  padding-top: 140px;
  padding-bottom: 160px;
}
.contact-section .contact-ttl-wrap {
  margin-bottom: 58px;
}
.contact-section .contact-ttl-wrap .contact-ttl {
  font-family: "Zen Old Mincho", serif;
  font-size: 4rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.45;
  text-align: center;
}
.contact-section .contact-dl-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.contact-section .contact-dl-wrap .contact-dl {
  display: flex;
  font-size: 2.4rem;
  flex-grow: 1;
  min-width: 330px;
  letter-spacing: 0.024em;
}
.contact-section .contact-dl-wrap .contact-dl dt {
  margin-right: 24px;
  min-width: 50px;
}
.contact-section .contact-dl-wrap .contact-dl dd {
  flex-grow: 2;
}
.contact-section .contact-dl-wrap .contact-dl dd a {
  color: #333;
}

.bome-area {
  padding-top: 160px;
  padding-bottom: 180px;
}
.bome-area .home-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 240px;
  margin: 0 auto;
  padding: 16px;
  color: #003c8c;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.4;
  border: 1px solid #003c8c;
  border-radius: 80px;
  background-color: #fff;
}

.video-box {
  margin-top: 96px;
}
.video-box .video {
  position: relative;
  width: 800px;
  height: 450px;
}
.video-box .video iframe {
  position: absolute;
  width: 100%;
  height: 100%;
  aspect-ratio: 16/9;
}
.video-box .video-caption {
  margin-top: 16px;
  font-size: 1.8rem;
  line-height: 1.4444444444;
}

.h2-ttl + .video-box {
  margin-top: 0;
}

.link-txt-wrap {
  margin-top: 32px;
}
.link-txt-wrap.right {
  text-align: right;
}
.link-txt-wrap .link-txt {
  position: relative;
  color: #707070;
  text-decoration: underline;
  font-size: 1.8rem;
  line-height: 1.4444444444;
}
.link-txt-wrap .link-txt[target=_blank]::after {
  content: "";
  display: inline-block;
  position: relative;
  top: -2px;
  width: 27px;
  height: 21px;
  vertical-align: middle;
  background: url(/assets/images/icn_external_link.png) no-repeat left top/27px auto;
}

.cmn-news-ttl-wrap {
  margin-bottom: 32px;
}
.cmn-news-ttl-wrap .date {
  color: #707070;
  margin-bottom: 16px;
}
.cmn-news-ttl-wrap .cmn-news-ttl {
  font-family: "Zen Old Mincho", serif;
  font-size: 3.2rem;
  font-weight: 700;
  line-height: 1.5;
}

.news-detail .bome-area {
  padding-top: 80px;
  padding-bottom: 112px;
}
.news-detail .normal-txt + .normal-txt {
  margin-top: 40px;
}
.news-detail .contents-section {
  background: url(/assets/images/bg_news_detail.jpg) no-repeat left bottom/1366px auto;
}

.bdt-ttl-wrap {
  margin-bottom: 60px;
  position: relative;
  padding-top: 24px;
  text-align: center;
}
.bdt-ttl-wrap::after {
  content: "";
  display: block;
  position: absolute;
  top: 0;
  left: calc(50% - 17px);
  width: 34px;
  height: 6px;
  background: url(/assets/images/item_bd_ttl.svg) no-repeat left top/34px auto;
}
.bdt-ttl-wrap .ttl {
  font-size: 3.6rem;
  font-weight: 700;
  line-height: 1.3888888889;
}
.bdt-ttl-wrap .ttl .zen {
  font-family: "Zen Old Mincho", serif;
  font-size: 3.2rem;
  display: inline-block;
  margin-left: 4px;
}

.about .bome-area {
  padding-top: 160px;
  padding-bottom: 180px;
}
.about .normal-txt {
  line-height: 1.7777777778;
}
.about .normal-txt + .normal-txt {
  margin-top: 24px;
}

.logo-col2-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 32px;
  gap: 28px;
}
.logo-col2-wrap .col {
  zoom: 0.5;
}

.about-flx-box {
  display: flex;
  gap: 20px;
}
.about-flx-box .txt-wrap {
  display: flex;
  flex-direction: column;
  gap: 16px;
  font-size: 1.8rem;
  line-height: 1.7777777778;
  flex: 1;
}
.about-flx-box .graph-wrap {
  display: flex;
  flex-direction: column;
  align-items: end;
  width: 380px;
}
.about-flx-box .graph-wrap .graph-txt-wrap {
  color: #707070;
  padding: 0 10px 0 70px;
}
.about-flx-box .graph-wrap .graph-txt-wrap .graph-ttl {
  font-size: 1.4rem;
  line-height: 1.4285714286;
  margin-bottom: 16px;
  text-align: center;
}
.about-flx-box .graph-wrap .graph-txt-wrap .graph-notes {
  margin-top: 16px;
  font-size: 1.1rem;
  line-height: 1.4545454545;
}

.arr-list {
  width: 520px;
  margin: 42px auto 0;
  display: flex;
  flex-direction: column;
  gap: 50px;
}
.arr-list li {
  display: flex;
  justify-content: center;
  flex-direction: column;
  position: relative;
  gap: 10px;
  padding: 18px 16px 20px;
  min-height: 98px;
  background-color: rgba(46, 102, 255, 0.1);
  border-radius: 32px;
  text-align: center;
}
.arr-list li .main {
  color: #003C8C;
  font-size: 1.8rem;
  line-height: 1.4444444444;
}
.arr-list li + li::before {
  content: "";
  display: block;
  position: absolute;
  width: 88px;
  height: 19px;
  bottom: calc(100% + 16px);
  left: calc(50% - 44px);
  background: url(/assets/images/icn_arr.svg) no-repeat top left/cover;
}

.researcher-box {
  display: flex;
  gap: 120px;
}
.researcher-box .name-wrap {
  display: flex;
  flex-direction: column;
  align-items: start;
  flex: 1;
}
.researcher-box .name-wrap .name {
  font-size: 2rem;
  line-height: 1.5;
}
.researcher-box .name-wrap .en-name {
  margin-top: 8px;
}
.researcher-box .name-wrap .post {
  margin-top: 24px;
  font-size: 1.8rem;
  line-height: 1.4444444444;
}
.researcher-box .name-wrap .compact-btn-wrap {
  margin-top: auto;
}
.researcher-box .name-wrap .compact-btn-wrap .compact-btn {
  display: flex;
  color: #003C8C;
  padding: 8px 50px;
  border: 1px solid #003C8C;
  border-radius: 24px;
}
.researcher-box .researcher-img {
  zoom: 0.5;
}

.paper-box {
  display: flex;
  gap: 32px;
  flex-direction: column;
}
.paper-box .paper {
  color: #707070;
}
.paper-box .paper .paper-link-wrap .paper-link {
  color: #707070;
  font-size: 1.8rem;
  line-height: 1.5555555556;
  position: relative;
  overflow: hidden;
}
.paper-box .paper .paper-link-wrap .paper-link span {
  background: linear-gradient(transparent 95%, #707070 95%);
  background-repeat: no-repeat;
  background-size: 0% 100%;
  transition-duration: 0.3s;
}
.paper-box .paper .paper-link-wrap .paper-link[target=_blank]::after {
  content: "";
  display: inline-block;
  position: relative;
  top: -2px;
  width: 12px;
  height: 12px;
  margin-left: 4px;
  vertical-align: middle;
  background: url(/assets/images/icn_external_gray.svg) no-repeat left top/12px auto;
}
.paper-box .paper .paper-txt {
  font-size: 1.4rem;
  line-height: 2;
}

.f-up {
  transition: 1.25s cubic-bezier(0.215, 0.61, 0.355, 1);
  opacity: 0;
  transform: translateY(20px);
}
.f-up.show {
  opacity: 1;
  transform: translateY(0);
}

/*==========================================================================================================
PC Only
==========================================================================================================*/
@media screen and (min-width: 768px) {
  .sp-lang, .sp-nav,
  .sp-lang, .sp-menu,
  .sp-only {
    display: none !important;
  }
  .language a:hover,
  .compact-btn:hover,
  .btn:hover,
  .home-btn:hover,
  .top-btn:hover,
  .link-tile:hover,
  .mail-btn:hover,
  .logo:hover,
  #header .header-link-list li a:hover {
    opacity: 0.7;
  }
  .mail-link:hover,
  .ft-link-list li a:hover,
  .ft-link-txt:hover {
    text-decoration: underline;
  }
  .link-txt:hover {
    text-decoration: none !important;
  }
  a[href^=tel] {
    pointer-events: none;
    text-decoration: none;
  }
  .link-tile-wrap .link-tile:hover .txt-wrap::before {
    transform: scale(1, 1);
    transform-origin: left center;
  }
  .paper-box .paper .paper-link-wrap .paper-link:hover span,
  .news-list li a.news:hover .txt {
    background-size: 100% 100%;
  }
}
/*==========================================================================================================
SP Only
==========================================================================================================*/
@media screen and (max-width: 767px) {
  .pc-only {
    display: none !important;
  }
  #header {
    position: fixed;
    background-color: #fff;
  }
  #header.sp-show {
    position: static;
  }
  #header .header-inner {
    padding: 14px 12px 10px 18px;
    align-items: center;
    gap: 16px;
    min-height: 64px;
  }
  #header .logo-wrap {
    flex: 1;
  }
  #header .logo-wrap .logo {
    display: block;
    width: 240px;
    min-width: auto;
  }
  #header .link-wrap {
    display: none;
  }
  #header .header-link-list {
    flex-direction: column;
    align-items: center;
    gap: 32px;
  }
  #header .sp-lang {
    display: block;
    width: 20px;
    height: 20px;
    background: url(/assets/images/icn_global_gray.svg) no-repeat center/auto 20px;
    overflow: hidden;
    text-indent: -9999px;
  }
  #header .sp-menu {
    display: block;
    width: 24px;
    height: 20px;
    background: url(/assets/images/icn_menu.svg) no-repeat center/auto 10px;
    overflow: hidden;
    text-indent: -9999px;
  }
  #header .sp-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 100;
    transition-duration: 0.3s;
    background-color: #fff;
    opacity: 0;
    pointer-events: none;
  }
  #header .sp-nav.show {
    display: block;
    opacity: 1;
    pointer-events: all;
  }
  #header .sp-nav .sp-lang {
    margin-right: 40px;
  }
  #header .sp-nav .sp-menu {
    background: url(/assets/images/icn_close.svg) no-repeat center/auto 20px;
  }
  #header .sp-nav .nav-top {
    display: flex;
    align-items: center;
    justify-content: end;
    padding: 14px 12px 10px 18px;
    height: 64px;
    border-bottom: 1px solid #CDCDCD;
  }
  #header .sp-nav .sp-menu-inner {
    padding: 24px 80px 42px;
  }
  #header .sp-nav .header-btn-wrap {
    position: static;
    margin-top: 32px;
  }
  #header .sp-nav .header-btn-wrap .mail-btn {
    padding: 12px;
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1.375;
  }
  #footer {
    padding: 52px 0 12px;
  }
  #footer .logo {
    width: 120px;
  }
  #footer .logo img {
    max-width: none;
    width: 100%;
  }
  #footer .ft-bottom {
    margin-top: 40px;
    flex-direction: column;
    align-items: start;
  }
  #footer .ft-link-list {
    flex-direction: column;
    align-items: start;
    gap: 24px;
  }
  #footer .privacy-link-wrap {
    margin: 0;
    margin-top: 24px;
  }
  #footer .copy {
    margin-top: 72px;
  }
  .top-btn-wrap {
    right: 20px;
    bottom: 20px;
  }
  .top-btn-wrap.end {
    bottom: calc(100% + 26px);
  }
  .top-btn-wrap .top-btn {
    width: 44px;
    height: 44px;
  }
  .header-inner,
  #wrap {
    min-width: auto;
    overflow: hidden;
  }
  #wrap {
    padding-top: 64px;
  }
  .anchor-point {
    margin-top: -64px;
    padding-top: 64px;
  }
  .inner-wrap {
    width: auto;
    padding: 0 18px;
  }
  .inner-wrap + .inner-wrap, .inner-wrap + .inner-s-wrap {
    margin-top: 64px;
  }
  .inner-s-wrap {
    width: auto;
    padding: 0 18px;
  }
  .inner-s-wrap + .inner-s-wrap, .inner-s-wrap + .inner-wrap {
    margin-top: 64px;
  }
  .breadcrumbs {
    padding-top: 15px;
  }
  .breadcrumbs ul > li {
    padding-right: 12px;
    font-size: 1rem;
  }
  .breadcrumbs ul > li + li {
    padding-left: 8px;
  }
  .breadcrumbs ul > li + li::before {
    width: 5px;
    height: 10px;
    top: 4px;
    background-size: 5px 10px;
  }
  .breadcrumbs ul > li a {
    font-size: 1rem;
  }
  .main-visual {
    flex-direction: column;
    max-width: none;
    height: auto;
  }
  .main-visual .main-area {
    width: 100%;
    padding: 88px 18px 80px;
    order: 2;
    background: url(/assets/images/bg_mv_sp.jpg) no-repeat center/cover;
  }
  .main-visual .main-area .main-ttl {
    font-size: 3rem;
    line-height: 1.6666666667;
    margin-bottom: 26px;
  }
  .main-visual .main-area .sub {
    font-size: 1.8rem;
    line-height: 1.9444444444;
  }
  .main-visual .main-img {
    order: 1;
    width: 100%;
    transform: translateY(0);
    height: 270px;
    background: url(/assets/images/img_main_visual_sp.jpg) no-repeat center/cover;
  }
  .features-section {
    padding-top: 100px;
    background: url(/assets/images/bg_features_sp.jpg) no-repeat left top/cover;
  }
  .features-contents {
    position: relative;
    padding-top: 0;
    padding-bottom: 0;
    display: flex;
    flex-direction: column;
    width: auto;
    z-index: 3;
  }
  .features-contents .features-txt {
    order: 3;
    margin-top: 32px;
  }
  .features-contents .features-txt .normal-txt {
    font-size: 1.6rem;
    line-height: 1.75;
  }
  .features-contents .features-txt .normal-txt + .normal-txt {
    margin-top: 20px;
  }
  .features-contents .features-img {
    order: 1;
    position: static;
    width: 100vw;
    height: auto;
    margin-left: -18px;
  }
  .features-ttl-wrap {
    margin-bottom: 24px;
    text-align: center;
  }
  .features-ttl-wrap .features-ttl {
    font-size: 2.4rem;
    line-height: 1.5;
  }
  .about-section {
    position: relative;
    z-index: 2;
    padding-top: 64px;
  }
  .about-section::before {
    content: "";
    display: block;
    position: absolute;
    width: 375px;
    height: 512px;
    top: -100px;
    left: 0;
    background: url(/assets/images/bg_about_sp.jpg) no-repeat left top/cover;
    z-index: -1;
  }
  .about-section .btn-wrap {
    margin-top: 40px;
  }
  .about-ttl-wrap {
    margin-bottom: 24px;
    text-align: center;
  }
  .about-ttl-wrap .about-ttl {
    font-size: 2.4rem;
    line-height: 1.5;
  }
  .about-contents .normal-txt {
    font-size: 1.6rem;
    line-height: 1.875;
  }
  .about-contents .normal-txt + .normal-txt {
    margin-top: 12px;
  }
  .youtube-box {
    aspect-ratio: 16/9;
    width: 100%;
    height: auto;
    margin-bottom: 36px;
  }
  .loop-box {
    margin-top: 145px;
    height: 56px;
  }
  .loop-box .txt-loop-animation {
    width: 1720px;
  }
  .product-section {
    padding-top: 90px;
  }
  .products-ttl-wrap {
    margin-bottom: 24px;
    text-align: center;
  }
  .products-ttl-wrap .products-ttl {
    font-size: 2.4rem;
    line-height: 1.5;
  }
  .link-tile-wrap {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
  }
  .link-tile-wrap .link-tile {
    width: 100%;
  }
  .link-tile-wrap .link-tile .txt-wrap {
    padding: 16px 12px 20px;
  }
  .link-tile-wrap .link-tile .txt-wrap .ttl {
    font-size: 2rem;
    line-height: 1.5;
    margin-bottom: 16px;
  }
  .link-tile-wrap .link-tile .txt-wrap .txt {
    font-size: 1.6rem;
    line-height: 1.5;
  }
  .news-section {
    margin-top: 90px;
    padding-bottom: 150px;
    background: url(/assets/images/bg_news_body_sp.jpg) no-repeat left bottom/100% auto;
  }
  .news-section .btn-wrap {
    margin-top: 80px;
  }
  .news-ttl-wrap {
    margin-bottom: 26px;
    height: 186px;
    background: url(/assets/images/bg_news_sp.jpg) no-repeat center/cover;
  }
  .news-ttl-wrap .news-ttl {
    font-size: 2.4rem;
    line-height: 1.5;
  }
  .news-list li .news {
    flex-direction: column;
    gap: 8px;
    padding: 24px 0;
    color: #959595;
    font-size: 1.8rem;
    line-height: 1.4444444444;
    overflow: hidden;
  }
  .news-list li .news .date {
    margin: 0;
    padding: 0;
    border: none;
  }
  .news-list li .news .txt {
    margin-top: 8px;
  }
  .contents-section {
    padding-top: 40px;
  }
  .h1-ttl {
    margin-bottom: 24px;
  }
  .h1-ttl .ttl {
    font-size: 2.2rem;
    font-weight: 500;
    line-height: 1.4545454545;
  }
  .h2-ttl {
    margin-bottom: 24px;
    font-size: 2rem;
    font-weight: 500;
    line-height: 1.45;
  }
  * + .h2-ttl {
    margin-top: 40px;
  }
  .bd-ttl {
    margin-bottom: 24px;
    font-size: 2rem;
    font-weight: 500;
    line-height: 1.45;
    padding-left: 16px;
  }
  .bd-ttl::before {
    width: 10px;
    height: 25px;
    top: 4px;
  }
  * + .bd-ttl {
    margin-top: 40px;
  }
  .h3-ttl {
    font-size: 1.8rem;
    line-height: 1.4444444444;
    margin-bottom: 24px;
  }
  * + .h3-ttl {
    margin-top: 40px;
  }
  .normal-txt {
    font-size: 1.6rem;
    line-height: 1.75;
  }
  .products-img {
    text-align: center;
  }
  .products-img + .normal-txt {
    margin-top: 24px;
  }
  * + .products-img {
    margin-top: 24px;
  }
  .dots-list li {
    font-size: 1.6rem;
    line-height: 1.75;
    padding-left: 24px;
  }
  .dots-list li::before {
    top: 12px;
    width: 6px;
    height: 6px;
  }
  .dots-list li + li {
    margin-top: 12px;
  }
  .img-flx-box {
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px;
  }
  .img-flx-box .img-wrap {
    width: 100%;
  }
  .img-flx-box .txt-wrap {
    width: 100%;
    flex: 0 1 auto;
  }
  .img-grid-box.col2 {
    grid-template-columns: repeat(1, 1fr);
    grid-row-gap: 28px;
  }
  .img-grid-box.col4 {
    grid-template-columns: repeat(2, 1fr);
    grid-row-gap: 28px;
  }
  .img-grid-box .txt {
    font-size: 1.6rem;
    line-height: 1.5;
  }
  .btn-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
    margin-top: 80px;
  }
  .btn-wrap + .btn-wrap {
    margin-top: 64px;
  }
  .btn {
    max-width: 296px;
    min-width: auto;
    width: 100%;
    padding: 12px 16px;
    font-size: 1.6rem;
    line-height: 1.5;
  }
  .btn.small {
    font-size: 1.6rem;
    line-height: 1.5;
    padding: 12px 16px;
  }
  .bome-area {
    padding-top: 64px;
    padding-bottom: 108px;
  }
  .bome-area .home-btn {
    width: 196px;
    padding: 12px;
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1.5;
  }
  .video-box {
    margin-top: 32px;
  }
  .video-box .video {
    width: 100%;
    height: auto;
    aspect-ratio: 16/9;
  }
  .video-box .video-caption {
    font-size: 1.4rem;
    line-height: 1.4285714286;
  }
  .link-txt-wrap .link-txt {
    font-size: 1.4rem;
    line-height: 1.5714285714;
  }
  .link-txt-wrap .link-txt[target=_blank]::after {
    content: "";
    top: -2px;
    width: 20px;
    height: 16px;
    background: url(/assets/images/icn_external_link.png) no-repeat left top/20px auto;
  }
  .cmn-news-ttl-wrap .date {
    margin-bottom: 12px;
  }
  .cmn-news-ttl-wrap .cmn-news-ttl {
    font-size: 2.4rem;
    font-weight: 500;
    line-height: 1.3333333333;
  }
  .news-detail .bome-area {
    padding-top: 64px;
    padding-bottom: 108px;
  }
  .news-detail .normal-txt + .normal-txt {
    margin-top: 24px;
  }
  .news-detail .contents-section {
    background: url(/assets/images/bg_news_detail.jpg) no-repeat left bottom/150% auto;
  }
  .bdt-ttl-wrap {
    margin-bottom: 42px;
    padding-top: 0;
  }
  .bdt-ttl-wrap::after {
    content: none;
  }
  .bdt-ttl-wrap .ttl {
    font-size: 2.4rem;
    line-height: 1.5;
  }
  .bdt-ttl-wrap .ttl .zen {
    font-size: 2.4rem;
  }
  .about .bome-area {
    padding-top: 80px;
    padding-bottom: 128px;
  }
  .about .normal-txt + .normal-txt {
    margin-top: 16px;
  }
  .logo-col2-wrap {
    gap: 14px;
    align-items: center;
  }
  .about-flx-box {
    flex-wrap: wrap;
    justify-content: end;
    gap: 24px;
  }
  .about-flx-box .txt-wrap {
    width: 100%;
    gap: 18px;
    font-size: 1.6rem;
    line-height: 1.75;
    flex: 0 1 auto;
  }
  .about-flx-box .graph-wrap {
    width: 322px;
  }
  .about-flx-box .graph-wrap .graph-txt-wrap {
    padding: 0 0 0 60px;
  }
  .about-flx-box .graph-wrap .graph-txt-wrap .graph-ttl {
    margin-bottom: 12px;
  }
  .about-flx-box .graph-wrap .graph-txt-wrap .graph-notes {
    margin-top: 0;
  }
  .arr-list {
    width: 100%;
    margin: 32px auto 0;
  }
  .arr-list li {
    gap: 10px;
    padding: 24px 24px 20px;
    min-height: 120px;
  }
  .arr-list li .main {
    font-size: 1.6rem;
    line-height: 1.5;
  }
  .researcher-box {
    flex-wrap: wrap;
    gap: 26px;
  }
  .researcher-box .name-wrap {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    flex: 1;
  }
  .researcher-box .name-wrap .name {
    font-size: 1.8rem;
    line-height: 1.4444444444;
  }
  .researcher-box .name-wrap .en-name {
    margin-top: 10px;
    font-size: 1.4rem;
    line-height: 1.4285714286;
  }
  .researcher-box .name-wrap .post {
    margin-top: 16px;
    font-size: 1.8rem;
    line-height: 1.5625;
  }
  .researcher-box .name-wrap .compact-btn-wrap {
    margin-top: 16px;
  }
  .researcher-box .name-wrap .compact-btn-wrap .compact-btn {
    width: 100%;
    justify-content: center;
    padding: 10px 24px;
  }
  .researcher-box .researcher-img {
    width: 100%;
    text-align: center;
    zoom: 1;
  }
  .researcher-box .researcher-img img {
    width: 154px;
    height: 160px;
  }
  .paper-box {
    gap: 24px;
  }
  .paper-box .paper .paper-link-wrap .paper-link {
    font-size: 1.4rem;
    font-weight: 400;
    line-height: 2;
  }
  .paper-box .paper .paper-link-wrap .paper-link[target=_blank]::after {
    top: 0;
  }
  .paper-box .paper .paper-txt {
    font-size: 1.2rem;
    line-height: 2.3333333333;
  }
}