@charset "UTF-8";
/*========== トップページ ==========*/
/*==========
メインビジュアル
==========*/
#mv {
  height: 100vh;
  height: 100lvh;
}
#mv .bg_video {
  width: 100%;
  height: 100%;
}
#mv video {
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
}
#mv .text_area {
  width: 100%;
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  padding-top: 7.5rem;
  padding-bottom: 9.375rem;
}
#mv .text_area::before, #mv .text_area::after {
  content: "";
  width: 75%;
  aspect-ratio: 1/1;
  border-radius: 50%;
  background-color: #E4005A;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  z-index: -10;
}
#mv .text_area::after {
  mix-blend-mode: multiply;
  background: center/contain url("../img/common/bg_noise.png");
  z-index: -9;
}
#mv .text_area .deco_01 {
  margin-left: auto;
  margin-right: auto;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1;
}
#mv .text_area .deco_02 {
  opacity: 0.16;
  width: calc(100% - 2.5rem);
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
}
#mv .text_area .scroll {
  font-family: "DM Sans";
  letter-spacing: 0.05em;
  font-size: 0.75rem;
  font-weight: 500;
  color: #fff;
  position: absolute;
  left: 50%;
  bottom: 5rem;
  transform: translateX(-50%);
}
#mv .text_area .scroll::after {
  content: "";
  width: 1px;
  height: 200px;
  background-color: #fff;
  opacity: 0.26;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, 2em);
}
@media screen and (max-width: 1279px) {
  #mv .text_area {
    padding-top: 2.5rem;
    padding-bottom: 4rem;
  }
  #mv .text_area .scroll {
    bottom: 1.5rem;
  }
  #mv .text_area .scroll::after {
    height: 100px;
  }
}
@media screen and (max-width: 959px) {
  #mv .text_area::before, #mv .text_area::after {
    min-width: 588px;
  }
  #mv .text_area .deco_01 {
    width: 100%;
    max-width: 380px;
    top: auto;
    bottom: -3rem;
  }
  #mv .text_area .deco_02 {
    width: -webkit-fit-content;
    width: -moz-fit-content;
    width: fit-content;
    opacity: 1;
    margin-top: -5rem;
  }
  #mv .text_area .scroll {
    display: none;
  }
}

/*==========
index_news_float
==========*/
#index_news_float {
  position: fixed;
  right: 0;
  bottom: 3%;
  z-index: 80;
  background-color: #1C1D1D;
  padding: 0.5rem 0.75rem;
  color: #fff;
}
#index_news_float .row {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
}
#index_news_float .close {
  cursor: pointer;
  position: relative;
  margin-top: 0.19em;
  width: 1em;
  aspect-ratio: 1/1;
  flex-shrink: 0;
}
#index_news_float .close::before, #index_news_float .close::after {
  content: "";
  display: block;
  width: 1em;
  height: 1px;
  background-color: #fff;
  position: absolute;
  top: 50%;
  left: 50%;
}
#index_news_float .close::before {
  transform: translate(-50%, -50%) rotate(45deg);
}
#index_news_float .close::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}
#index_news_float .label {
  font-family: "DM Sans";
  letter-spacing: 0.05em;
  font-weight: 300;
  color: var(--color_main);
  flex-shrink: 0;
}
#index_news_float .text_area {
  margin-top: 0.125em;
  display: flex;
  gap: 1.5em;
  font-size: 0.8125rem;
  max-width: 25rem;
  min-width: 17.8125rem;
}
#index_news_float time {
  flex-shrink: 0;
}
#index_news_float a {
  color: inherit;
  text-decoration: none;
}
@media screen and (max-width: 959px) {
  #index_news_float {
    width: 100%;
    bottom: 0;
  }
  #index_news_float .row {
    gap: 0.625rem;
  }
  #index_news_float .close {
    font-size: 0.75rem;
    margin-top: 0.325em;
  }
  #index_news_float .label {
    font-size: 0.8125rem;
  }
  #index_news_float .text_area {
    min-width: auto;
    font-size: 0.6875rem;
    gap: 0.625rem;
  }
}

/*==========
index_intro
==========*/
#index_intro {
  color: #fff;
  position: relative;
  z-index: 1;
}
#index_intro::before, #index_intro::after {
  content: "";
  width: 100%;
  height: 100%;
  background-color: #E4005A;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  z-index: -10;
}
#index_intro::after {
  mix-blend-mode: multiply;
  background: center/contain url("../img/common/bg_noise.png");
  z-index: -9;
}
#index_intro .flex {
  display: flex;
  justify-content: space-between;
  gap: 0 1rem;
}
#index_intro .flex .text_area {
  font-size: 1.0625rem;
  font-family: "Zen Old Mincho", serif;
  line-height: 2.8235;
}
#index_intro .text_foot {
  margin-top: 7.5rem;
  text-align: right;
  font-family: "DM Sans";
  letter-spacing: 0.05em;
  font-size: 0.75rem;
  font-weight: 500;
}
@media screen and (max-width: 1279px) {
  #index_intro .flex .text_area {
    font-size: 1rem;
  }
  #index_intro .flex .img_area {
    width: 15%;
  }
  #index_intro .text_foot {
    margin-top: 2.5rem;
  }
}
@media screen and (max-width: 959px) {
  #index_intro .flex {
    flex-direction: column;
  }
  #index_intro .flex .text_area {
    margin-top: var(--paddingSection);
    font-size: 0.8125rem;
    line-height: 1.9;
    font-weight: 400;
  }
  #index_intro .flex .img_area {
    order: -1;
    width: 100%;
  }
  #index_intro .text_foot {
    font-size: 0.5rem;
  }
}

/*==========
index_strength
==========*/
#index_strength {
  color: #fff;
  position: relative;
  z-index: 1;
  overflow: hidden;
}
#index_strength::before {
  content: "";
  background: center/cover url("../img/index/index_strength_bg.jpg") no-repeat;
  width: 100%;
  height: 100%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: -2;
}
#index_strength::after {
  content: "";
  background: linear-gradient(-90deg, transparent 0%, #2f2f2f 77.34%, #222 100%);
  position: absolute;
  inset: 0;
  z-index: -1;
  mix-blend-mode: multiply;
}
#index_strength a {
  padding-top: 4rem;
  padding-bottom: 5rem;
  color: inherit;
  text-decoration: none;
  display: block;
}
#index_strength .flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
#index_strength .title_sub {
  font-size: 1.75rem;
  line-height: 1.25;
  font-family: "Zen Old Mincho", serif;
  margin-bottom: 2.5rem;
}
#index_strength .icon_arrow {
  flex-shrink: 0;
  margin-top: 1.5rem;
  width: 5rem;
  aspect-ratio: 1/1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: #F5F0F0;
  position: relative;
  z-index: 1;
}
#index_strength .icon_arrow::before, #index_strength .icon_arrow::after {
  content: "";
  width: 0.6875rem;
  aspect-ratio: 1/1;
  background: center/contain url("../img/common/icon_arrow.svg") no-repeat;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
}
#index_strength .icon_arrow::before {
  background-image: url("../img/common/icon_arrow-white.svg");
  z-index: 1;
}
@media screen and (min-width: 960px) {
  #index_strength::before {
    transition: width 0.5s;
  }
  #index_strength .icon_arrow {
    transition: background-color 0.5s, transform 0.5s;
  }
  #index_strength .icon_arrow::after {
    transition: opacity 0.5s;
  }
  #index_strength:has(a:hover)::before {
    width: calc(100% + 4rem);
  }
  #index_strength:has(a:hover) .icon_arrow {
    transform: scale(1.25);
    background-color: var(--color_main);
  }
  #index_strength:has(a:hover) .icon_arrow::after {
    opacity: 0;
  }
  #index_strength a:hover {
    opacity: 1;
  }
}
@media screen and (max-width: 959px) {
  #index_strength::before {
    background-image: url("../img/index/index_strength_bg-sp.jpg");
  }
  #index_strength::after {
    background: linear-gradient(-120deg, transparent 0%, #2f2f2f 60%, #222 100%);
  }
  #index_strength a {
    padding-top: var(--paddingSection);
    padding-bottom: var(--paddingSection);
  }
  #index_strength .title_sub {
    font-size: 1.25rem;
    margin-top: var(--paddingSection);
    margin-bottom: 1.5rem;
  }
  #index_strength .text {
    font-size: 0.875rem;
  }
  #index_strength .icon_arrow {
    margin-top: auto;
    margin-bottom: -2rem;
    width: 2.5rem;
  }
  #index_strength .icon_arrow::before, #index_strength .icon_arrow::after {
    width: 0.5rem;
  }
}

/*==========
index_service
==========*/
#index_service {
  background-color: #1A1A1A;
  color: #fff;
}
#index_service .flex {
  display: flex;
  align-items: center;
  gap: 1rem 2rem;
}
#index_service .flex > * {
  flex: 1;
}
#index_service .title_sub {
  font-size: 1.375rem;
  font-family: "Zen Old Mincho", serif;
  line-height: 1.8;
  margin-bottom: 3rem;
}
#index_service .text {
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.8;
}
#index_service .menu_area {
  margin-right: calc(50% - 50vw);
}
#index_service .menu_area .cross {
  pointer-events: none;
  width: 4em;
  height: 1.25rem;
  margin-left: 35%;
  z-index: 10;
  position: relative;
}
#index_service .menu_area .cross::after {
  content: "";
  width: 100%;
  aspect-ratio: 1/1;
  background: center/contain url("../img/index/index_service-cross.svg") no-repeat;
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  z-index: 10;
}
#index_service .menu_area .btn {
  display: flex;
  align-items: center;
  aspect-ratio: 700/295;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  padding: var(--paddingLR) 4rem;
  position: relative;
  z-index: 1;
}
#index_service .menu_area .btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background-color: #121314;
  opacity: 0.25;
  z-index: -1;
}
#index_service .menu_area .btn .title {
  font-size: 1.375rem;
  width: 100%;
  max-width: 504px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
#index_service .menu_area .btn .title::after {
  content: "";
  width: 5rem;
  aspect-ratio: 1/1;
  border-radius: 50%;
  background: center/0.6875rem auto url("../img/common/icon_arrow.svg") no-repeat #F5F0F0;
  opacity: 0.54;
}
@media screen and (min-width: 960px) {
  #index_service .menu_area .btn::before {
    transition: background-color 0.5s, opacity 0.5s;
  }
  #index_service .menu_area .btn .title::after {
    transition: opacity 0.5s;
  }
  #index_service .menu_area .btn:hover::before {
    opacity: 0.86;
    background-color: var(--color_main);
  }
  #index_service .menu_area .btn:hover .title::after {
    opacity: 1;
  }
}
@media screen and (max-width: 1279px) {
  #index_service .menu_area .btn {
    padding: var(--paddingLR);
  }
}
@media screen and (max-width: 959px) {
  #index_service .flex {
    flex-direction: column;
    gap: var(--paddingSection);
  }
  #index_service .title_sub {
    font-size: 1.125rem;
    margin-top: var(--paddingSection);
    margin-bottom: 1.5rem;
  }
  #index_service .text {
    font-size: 0.875rem;
  }
  #index_service .menu_area {
    max-width: 480px;
    width: 100vw;
    margin-left: calc(50% - 50vw);
  }
  #index_service .menu_area .cross {
    width: 3.5em;
    margin-left: auto;
    margin-right: auto;
  }
  #index_service .menu_area .btn {
    aspect-ratio: 375/170;
    padding: var(--paddingLR);
  }
  #index_service .menu_area .btn .title {
    font-size: 1rem;
  }
  #index_service .menu_area .btn .title::after {
    width: 2.5rem;
    opacity: 1;
    background-size: 0.5rem;
  }
}

/*==========
index_casestudy
==========*/
#index_casestudy {
  padding-top: calc(var(--paddingSection) * 2);
  padding-bottom: calc(var(--paddingSection) * 4);
  position: relative;
  z-index: 10;
}
#index_casestudy:has(.tab_btn > *:nth-child(2).active)::before {
  opacity: 0;
}
#index_casestudy .title_01 {
  color: #fff;
}
#index_casestudy .title_01::before {
  color: #fff;
}
#index_casestudy .title_sub {
  color: #fff;
}
#index_casestudy .tab_btn > * {
  background-color: transparent;
  color: #fff;
  border-color: #fff;
  opacity: 0.5;
}
@media screen and (min-width: 960px) {
  #index_casestudy .tab_btn > * {
    transition: opacity 0.5s;
  }
  #index_casestudy .tab_btn > *:hover {
    color: #fff;
    opacity: 1;
  }
}
#index_casestudy .tab_btn > *.active {
  background-color: #fff;
  color: var(--color_tab);
  opacity: 1;
}
#index_casestudy::before {
  content: "";
  width: 0;
  aspect-ratio: 1/1;
  background: center/contain url("../img/index/index_case_circle-red.png") no-repeat;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: -1;
  transition: opacity 0.5s, width 1s ease-in-out;
}
#index_casestudy::after {
  content: "";
  width: 0;
  aspect-ratio: 1/1;
  background: center/contain url("../img/index/index_case_circle-blue.png") no-repeat;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: -2;
  transition: opacity 0.5s, width 1s ease-in-out;
}
#index_casestudy.trigger::before, #index_casestudy.trigger::after {
  width: 1360px;
}
#index_casestudy .btn_01 {
  margin-top: 4rem;
}
#index_casestudy .layout_casestudy_slider .list .text_area {
  color: #fff;
}
@media screen and (max-width: 959px) {
  #index_casestudy {
    padding-top: calc(var(--paddingSection) * 1);
    padding-bottom: calc(var(--paddingSection) * 1);
  }
  #index_casestudy.trigger::before, #index_casestudy.trigger::after {
    width: 840px;
  }
  #index_casestudy .btn_01 {
    margin-top: 2.5rem;
  }
}

/*==========
index_company
==========*/
#index_company {
  margin-top: calc(var(--paddingSection) * 2 * -1);
  padding-top: calc(var(--paddingSection) * 2);
  background: center/cover url("../img/index/index_company.jpg") no-repeat;
  color: #fff;
  position: relative;
  z-index: 1;
}
#index_company::after {
  content: "";
  position: absolute;
  inset: 0;
  background-color: #2B2E2F;
  opacity: 0.9;
  z-index: -1;
  mix-blend-mode: multiply;
}
#index_company .row_title {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}
#index_company .row_text {
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 2.25;
  margin-top: 5rem;
  display: flex;
  gap: 0 2.5rem;
}
#index_company .row_text > * {
  flex: 1;
}
@media screen and (max-width: 959px) {
  #index_company {
    margin-top: calc(var(--paddingSection) * -1);
  }
  #index_company .row_title {
    flex-direction: column;
  }
  #index_company .row_text {
    font-size: 0.875rem;
    margin-top: 2.5rem;
    flex-direction: column;
  }
}

/*==========
index_news
==========*/
#index_news .flex {
  display: flex;
  gap: 5rem;
}
#index_news .img_area {
  width: 28.57142%;
}
#index_news .list_area {
  flex: 1;
}
#index_news .btn_01 {
  margin-right: 0;
}
@media screen and (max-width: 1279px) {
  #index_news .flex {
    gap: 2.5rem;
  }
}
@media screen and (max-width: 959px) {
  #index_news .flex {
    flex-direction: column;
  }
  #index_news .img_area {
    width: 100vw;
    height: 140px;
    order: 1;
    margin-right: calc(50% - 50vw);
    margin-left: calc(50% - 50vw);
  }
  #index_news .img_area img {
    width: 100%;
    height: 100%;
    -o-object-fit: cover;
       object-fit: cover;
  }
  #index_news .btn_01 {
    margin-right: auto;
  }
}

/*==========
index_menu
==========*/
#index_menu .flex {
  display: flex;
  gap: 0.25rem;
}
#index_menu .flex > * {
  flex: 1;
}
#index_menu .btn {
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 240px;
  padding: var(--paddingLR);
  position: relative;
  z-index: 1;
  border-radius: 5px;
  overflow: hidden;
}
#index_menu .btn .text_area {
  width: 100%;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
#index_menu .btn .text_area::after {
  content: "";
  width: 3.25rem;
  aspect-ratio: 1/1;
  background: center/0.5rem url("../img/common/icon_arrow.svg") no-repeat #F5F0F0;
  border-radius: 50%;
}
#index_menu .btn .title {
  font-size: 0.9375rem;
  font-weight: 500;
}
#index_menu .btn .title::before {
  content: attr(data-en);
  font-family: "DM Sans";
  letter-spacing: 0.05em;
  font-size: 5rem;
  font-weight: 100;
  display: block;
  line-height: 1;
}
#index_menu .btn .bg_img {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: -1;
}
#index_menu .btn .bg_img img {
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
}
@media screen and (min-width: 960px) {
  #index_menu .btn .text_area::after {
    transition: transform 0.5s, background-color 0.5s;
  }
  #index_menu .btn .bg_img {
    transition: width 0.5s;
  }
  #index_menu .btn:hover {
    opacity: 1;
  }
  #index_menu .btn:hover .text_area::after {
    transform: scale(1.25);
    background-color: var(--color_main);
    background-image: url("../img/common/icon_arrow-white.svg");
  }
  #index_menu .btn:hover .bg_img {
    width: calc(100% + 2rem);
  }
}
@media screen and (max-width: 1279px) {
  #index_menu .btn .title::before {
    font-size: 4rem;
  }
}
@media screen and (max-width: 959px) {
  #index_menu .flex {
    flex-direction: column;
  }
  #index_menu .btn {
    flex: 0 1 auto;
    height: 170px;
  }
  #index_menu .btn .text_area {
    height: 100%;
  }
  #index_menu .btn .text_area::after {
    width: 2.5rem;
    margin-top: auto;
  }
  #index_menu .btn .title {
    font-size: 0.8125rem;
    margin-bottom: auto;
  }
  #index_menu .btn .title::before {
    font-size: 3rem;
  }
}