@use "sass:map";
@use "sass:math";
@use "sass:color";
/*
* default mixins.
* ------------------------------
*
*
*/
.back_video_block {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100dvh;
  height: calc(var(--fixedfullvh) + 100px);
  z-index: -1;
  opacity: 0;
}

.back_video_block video {
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
}

.back_video_block.show {
  opacity: 1;
}

.top_anim_elm {
  opacity: 0;
}

.top_anim_elm.start_animation {
  animation-name: top_anim_elm;
  animation-duration: 1s;
  animation-iteration-count: 1;
  animation-fill-mode: forwards;
}

@keyframes top_anim_elm {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

.rainbow {
  width: 0;
  overflow: hidden;
}

.rainbow img {
  width: 100vw;
  height: 39vw;
}

.rainbow.start_animation {
  animation-name: rainbow;
  animation-duration: 1s;
  animation-delay: 0.5s;
  animation-iteration-count: 1;
  animation-fill-mode: forwards;
}

@keyframes rainbow {
  0% {
    width: 0;
  }
  100% {
    width: 100%;
  }
}

.first_view {
  height: 100dvh;
  height: var(--fixedfullvh);
  min-height: 800px;
  position: relative;
  margin-bottom: 20.57rem;
}

.first_view__item {
  position: absolute;
}

.first_view__item--copy {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: 1s;
}

.first_view__item--rainbow {
  top: 35px;
  left: 0;
  mix-blend-mode: overlay;
}

.first_view__item--anchor {
  right: 20px;
  bottom: 22px;
  animation-delay: 2s;
}

.first_view__item--nav {
  bottom: 50px;
  left: 36px;
  animation-delay: 1.5s;
}

.first_view__item--scroll_down {
  left: 50%;
  transform: translateX(-50%);
  bottom: 20px;
  animation-delay: 2.5s;
}

@media screen and (max-width: 1700px) {
  .first_view__item--rainbow {
    top: 8vh;
  }
}

@media screen and (max-width: 767px) {
  .first_view {
    margin-bottom: 7.57rem;
  }
  .first_view__item--anchor {
    right: unset;
    bottom: 120px;
    left: 50%;
    transform: translateX(-50%);
    filter: drop-shadow(0px 0px 15px rgba(0, 0, 0, 0.12));
    max-width: 315px;
  }
  .first_view__item--copy {
    top: 24%;
    transform: translateX(-50%);
  }
  .first_view__item--rainbow {
    top: 6%;
  }
}

@media screen and (max-width: 575px) {
  .first_view__item--rainbow {
    top: 10.5%;
  }
  .first_view__item--copy {
    top: 29%;
  }
  .first_view__item--rainbow {
    top: 14.5%;
  }
}

.center_copy {
  height: 37vh;
  max-width: 84vw;
  min-height: 296px;
}

@media screen and (max-width: 1700px) {
  .center_copy {
    height: 28vh;
    max-width: 50vw;
  }
}

@media screen and (max-width: 767px) {
  .center_copy {
    height: 25vh;
  }
}

@media screen and (max-width: 575px) {
  .center_copy {
    width: calc(100% - 60px);
    max-width: 340px;
  }
}

@media screen and (max-width: 1160px) {
  .topic_anchor {
    width: 36vw;
  }
}

@media screen and (max-width: 767px) {
  .topic_anchor {
    width: 84vw;
    height: auto;
  }
}

.scroll_down {
  text-align: center;
}

@media screen and (max-width: 767px) {
  .scroll_down__mark {
    width: 25px;
    height: auto;
  }
}

.scroll {
  position: relative;
  margin-top: 10px;
}

@media screen and (max-width: 767px) {
  .scroll {
    margin-top: 5px;
  }
}

.scroll-text {
  color: #fff;
  font-size: 13px;
  text-align: center;
  font-family: "Unbounded", sans-serif;
  letter-spacing: 0;
}

@media screen and (max-width: 767px) {
  .scroll-text {
    font-size: 9px;
  }
}

.scroll-border {
  position: relative;
  top: 10px;
  width: 100%;
  height: 119px;
  overflow: hidden;
}

@media screen and (max-width: 767px) {
  .scroll-border {
    height: 37px;
    top: 8px;
  }
}

.scroll-border::before {
  content: "";
  display: block;
  position: absolute;
  width: 1px;
  height: 40px;
  top: 0;
  left: 0;
  right: 0;
  background: #fff;
  animation: scrollbar 2s ease-in-out infinite;
  margin: auto;
}

@keyframes scrollbar {
  0% {
    height: 0;
    top: 0;
  }
  30% {
    height: 100%;
  }
  100% {
    top: 100%;
  }
}

.top_logos {
  display: flex;
  gap: 40px;
  align-items: center;
}

.top_logos a {
  display: inline-flex;
}

@media screen and (max-width: 767px) {
  .top_logos {
    gap: 15px;
  }
  .top_logos__jpeaks {
    width: 28vw;
    height: auto;
  }
  .top_logos__nagaoka {
    width: 26vw;
    height: auto;
  }
}

.white_gradation_back {
  background: transparent linear-gradient(180deg, #ffffff00 0%, #ffffff 40%, #ffffff 100%) 0% 0% no-repeat padding-box;
  width: 100%;
  height: 100%;
  padding-top: 80vh;
  margin-top: -80vh;
}

.white_gradation_back::after {
  content: "";
  position: relative;
  bottom: -4vw;
  left: 0;
  width: 100%;
  height: 4.13vw;
  display: block;
  background-image: url(../images/top/round_border_bottom.png);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

@media screen and (max-width: 1700px) {
  .white_gradation_back {
    background: transparent linear-gradient(180deg, #ffffff00 0%, #ffffff 30%, #ffffff 100%) 0% 0% no-repeat padding-box;
  }
}

@media screen and (max-width: 767px) {
  .white_gradation_back {
    padding-top: 50vh;
    margin-top: -50vh;
    margin-bottom: 8.13rem;
  }
}

.top_read {
  position: relative;
  margin-bottom: 28.13rem;
}

.top_read__subcopy {
  margin-bottom: 7.82rem;
}

.top_read__txt {
  text-align: left;
}

.top_read__img {
  position: absolute;
  left: -240px;
  bottom: -20rem;
  width: auto;
  height: 14.13rem;
  object-fit: cover;
  object-position: center;
}

@media screen and (max-width: 1160px) {
  .top_read__img {
    left: -90px;
  }
}

@media screen and (max-width: 767px) {
  .top_read {
    margin-bottom: 7.19rem;
  }
  .top_read__img {
    display: none;
  }
  .top_read__ttl {
    margin-bottom: 0.6rem;
  }
  .top_read__subcopy {
    margin-bottom: 2.82rem;
  }
}

.project_block {
  position: relative;
}

.project_block__img {
  position: absolute;
  top: 0;
  right: -23rem;
  width: auto;
  height: 26.5rem;
}

.img_ttl_01 {
  height: 100px;
  left: -20px;
  position: relative;
}

@media screen and (max-width: 1700px) {
  .img_ttl_01 {
    height: 90px;
    width: auto;
  }
}

@media screen and (max-width: 767px) {
  .img_ttl_01 {
    height: 50px;
    left: -12px;
  }
}

@media screen and (max-width: 1700px) {
  .img_ttl_02 {
    height: 52px;
    width: auto;
  }
}

@media screen and (max-width: 767px) {
  .img_ttl_02 {
    height: 29px;
  }
}

.key_item {
  border-radius: 25px 0 25px 0;
  padding-top: 100px;
  padding-left: 82px;
  padding-right: 82px;
  padding-bottom: 82px;
  width: 682px;
  min-height: calc(100dvh - 300px);
  background-color: #fff;
  box-shadow: 0 0 20px #dddddd;
}

.key_item__no {
  margin-bottom: 145px;
}

.key_item__ttl {
  font-size: 3em;
  font-family: "BIZ UDPMincho", serif;
  font-weight: 200;
  letter-spacing: 0;
  line-height: 1.2;
  margin-bottom: 0.49444rem;
}

.key_item__subttl {
  font-size: 0.82em;
  font-family: "Unbounded", sans-serif;
  font-weight: 400;
  letter-spacing: 0.03em;
  color: #dc000c;
  line-height: 1.5;
  margin-bottom: 2.1rem;
}

.key_item__txt {
  font-size: 1.38em;
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 400;
}

@media (max-height: 700px) {
  .key_item {
    padding-top: 30px;
    padding-left: 30px;
    padding-right: 30px;
    padding-bottom: 30px;
  }
  .key_item__no {
    margin-bottom: 55px;
  }
}

@media screen and (max-width: 1700px) {
  .key_item__no img {
    height: 80px;
    width: auto;
  }
}

@media screen and (max-width: 767px) {
  .key_item {
    width: 100%;
    height: auto;
    padding-top: 46px;
    padding-left: 32px;
    padding-right: 32px;
    padding-bottom: 46px;
  }
  .key_item__no {
    margin-bottom: 4.69rem;
  }
  .key_item__no img {
    height: 56px;
    width: auto;
  }
  .key_item__ttl {
    font-size: 1.57em;
  }
  .key_item__subttl {
    font-size: 0.38em;
  }
  .key_item__txt {
    font-size: 0.94em;
  }
}

@media screen and (max-height: 549px) {
  .key_item {
    min-height: unset;
  }
}

@media screen and (max-width: 575px) {
  .key_item {
    min-height: unset;
  }
}

.scroll_container {
  display: flex;
  gap: 5%;
  margin-left: 150px;
}

.scroll_container__item {
  flex: 0 0 auto;
}

@media screen and (max-width: 1700px) {
  .scroll_container {
    margin-left: 80px;
  }
}

@media screen and (max-width: 575px) {
  .scroll_container {
    margin-left: 0;
    gap: 10%;
  }
}

@media screen and (max-height: 549px) {
  .scroll_container {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }
}

@media screen and (max-width: 575px) {
  .scroll_container {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }
}

.key_word_block {
  height: 100vh;
  height: var(--fullvh);
  padding: 50px 0;
  min-height: 800px;
}

@media screen and (max-width: 767px) {
  .key_word_block {
    min-height: 400px;
  }
}

@media screen and (max-height: 549px) {
  .key_word_block {
    height: auto !important;
  }
}

@media screen and (max-width: 575px) {
  .key_word_block {
    height: auto !important;
  }
}

.sx_research_block {
  position: relative;
}

.sx_research_block_anno {
  text-decoration: underline;
  margin-bottom: 50px;
  font-family: "BIZ UDPMincho", serif;
  font-size: 1.13em;
}

.sx_research_block_anno span::before {
  content: "";
  display: inline-block;
  width: 14px;
  height: 16px;
  background: url(../images/common/finger_icon.svg) no-repeat center center;
  margin-right: 10px;
  vertical-align: middle;
  position: relative;
  bottom: 0.05em;
}

@media screen and (max-width: 767px) {
  .sx_research_block {
    margin-bottom: 20px;
  }
  .sx_research_block_anno {
    font-size: 0.75em;
  }
}

@media screen and (max-width: 575px) {
  .sx_research_block_anno {
    margin-bottom: 7vw;
  }
  .sx_research_block_anno span::before {
    margin-right: 5px;
  }
}

.four_targets_block {
  padding-bottom: 14.38rem;
  margin-top: 14.36rem;
}

@media screen and (max-width: 1700px) {
  .four_targets_block__img {
    width: 60vw;
    height: auto;
  }
}

@media screen and (max-width: 1160px) {
  .four_targets_block__img {
    width: 70vw;
    height: auto;
  }
}

@media screen and (max-width: 767px) {
  .four_targets_block {
    padding-bottom: 6.25rem;
    margin-top: 5.49rem;
  }
}

@media screen and (max-width: 767px) {
  .four_targets_img {
    margin-top: -11vw;
  }
}

.press {
  margin-bottom: 15.63rem;
}

@media screen and (max-width: 767px) {
  .press {
    margin-bottom: 8.13rem;
  }
}

.press_block {
  background: #ffffff;
  font-family: "BIZ UDPMincho", serif;
  border-radius: 3px;
  overflow: hidden;
}

.press_block__inner {
  padding-left: 80px;
  padding-right: 80px;
}

.press_block__date {
  background: #002e65;
  color: #fff;
  text-align: center;
  font-size: 1.63em;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

@media screen and (max-width: 767px) {
  .press_block__date {
    font-size: 0.88em;
  }
  .press_block__inner {
    padding-left: 30px;
    padding-right: 30px;
  }
}

.press_block_item {
  text-align: center;
  padding-top: 4rem;
  padding-bottom: 4rem;
}

.press_block_item__txt {
  font-size: 1.13em;
  font-family: "Noto Sans JP", sans-serif;
}

.press_block_item__no {
  font-size: 1.94em;
  margin-bottom: 0.8rem;
}

.press_block_item__ttl {
  margin-bottom: 2.1rem;
}

@media screen and (max-width: 767px) {
  .press_block_item {
    padding-top: 2rem;
    padding-bottom: 2rem;
  }
  .press_block_item__no {
    font-size: 1em;
  }
  .press_block_item__txt {
    font-size: 0.88em;
    text-align: left;
  }
}

.press_block_item_img_box img {
  max-width: 100%;
}

.pentagon {
  position: relative;
  display: table;
  margin-left: auto;
  margin-right: auto;
}

.pentagon__item {
  position: absolute;
}

.pentagon__item--01 {
  top: -30px;
  left: 50%;
  transform: translateX(-50%);
}

.pentagon__item--02 {
  top: 29%;
  right: -45px;
}

.pentagon__item--03 {
  bottom: -10px;
  right: 12%;
}

.pentagon__item--04 {
  bottom: -10px;
  left: 12%;
}

.pentagon__item--05 {
  top: 29%;
  left: -45px;
}

@media screen and (max-width: 1700px) {
  .pentagon__back {
    width: 60vw;
    max-width: 750px;
  }
}

@media screen and (max-width: 1160px) {
  .pentagon__back {
    width: 70vw;
  }
}

@media screen and (max-width: 575px) {
  .pentagon__back {
    width: 78vw;
  }
  .pentagon__item--01 {
    top: -4vw;
  }
  .pentagon__item--02 {
    top: 26%;
    right: -5vw;
  }
  .pentagon__item--03 {
    bottom: 0vw;
    right: 8vw;
  }
  .pentagon__item--04 {
    bottom: 0vw;
    left: 8vw;
  }
  .pentagon__item--05 {
    top: 26%;
    left: -5vw;
  }
}

.modal {
  background: rgba(255, 255, 255, 0.85);
}

.modal_frame {
  max-width: 1233px;
  box-shadow: 0 0 60px #edf1f5;
  padding: 0;
  border-radius: 10px;
}

.blocker {
  z-index: 9999;
}

.research_item_list {
  list-style: disc;
  padding-left: 1.5em;
}

@media screen and (max-width: 767px) {
  .research_item_list li {
    margin-bottom: 0.8rem;
  }
}

.sx_research_block {
  margin-bottom: 15.63rem;
}

@media screen and (max-width: 767px) {
  .sx_research_block {
    margin-bottom: 9.38rem;
  }
}

@media screen and (max-width: 767px) {
  .cooperation_img {
    margin-top: -8vw;
  }
}

.b_box {
  background-image: url(../images/top/banner_back_ring@2x.png);
  background-size: contain;
  background-position: center top;
  background-repeat: no-repeat;
  height: 0;
  padding-bottom: 41%;
}

.b_box a {
  display: block;
  width: 30%;
  flex: 0 0 auto;
}

.b_box__top {
  margin-bottom: 4.1%;
  padding-top: 3.5%;
}

.b_box__item {
  display: flex;
  justify-content: space-between;
}

.b_box__item--center {
  justify-content: center;
}

.b_box__img {
  width: 100%;
  filter: drop-shadow(0 0 20px rgba(0, 0, 0, 0.12));
}

.related_university {
  margin-bottom: 15.63rem;
}

@media screen and (max-width: 767px) {
  .related_university {
    margin-bottom: 8.13rem;
  }
}

.access {
  margin-bottom: 15.63rem;
}

@media screen and (max-width: 767px) {
  .access {
    margin-bottom: 8.13rem;
  }
}

.access_block {
  color: #fff;
}

.access_block__map {
  flex: 0 0 auto;
  width: 62.2%;
}

@media screen and (max-width: 767px) {
  .access_block__map {
    width: 100%;
  }
  .access_block__txt {
    text-align: left;
  }
}

.g_map {
  width: 100%;
  height: 0px;
  padding-bottom: 54%;
  border-radius: 7px;
}

@media screen and (max-width: 767px) {
  .g_map {
    border-radius: 4px;
    min-height: unset;
    height: 47vw;
  }
}
/*# sourceMappingURL=top.min.css.map */