@charset "utf-8";

:root {
  --navy: #2d4295;
  --blue: #16397c;
  --light-blue: #2f7a95;
  --black: #000000;
  --white: #ffffff;
  --yellow: #bbb603;
  --bg-cor-basic: linear-gradient(0deg, rgba(1, 1, 43, .1), rgba(1, 1, 43, .1)), linear-gradient(0deg, rgba(19, 48, 84, .75), rgba(19, 48, 84, .75)),#2d4295;
  --font-ja: "Hiragino Sans",sans-serif;
  --font-en: "Lato", sans-serif;
  --font-bold700: 700;
  --fz14: calc(14 / 16 * 1rem);
  --fz16: calc(16 / 16 * 1rem);
  --fz18: calc(18 / 16 * 1rem);
  --fz20: calc(20 / 16 * 1rem);
  --fz22: calc(22 / 16 * 1rem);
  --fz24: calc(24 / 16 * 1rem);
  --fz28: calc(28 / 16 * 1rem);
  --fz30: calc(30 / 16 * 1rem);
  --fz32: calc(32 / 16 * 1rem);
  --fz40: calc(40 / 16 * 1rem);
  --fz44: calc(44 / 16 * 1rem);
  --w1000: 1000px;
}
body,p,td,th,ol,ul,h1, h2, h3, h4, h5, h6{
  margin: 0;
  padding: 0;
}
ol,ul{
  list-style: none
}
img {
  vertical-align: middle;
}
a {
  border: 0;
  text-decoration: none;
  cursor: pointer;
  color: var(--white);
}
body {
  line-height: 1;
  font-size: var(--fz16);
  background: var(--bg-cor-basic);
  color: var(--white);
  font-family: var(--font-ja);
}
p {
  line-height: 1.6;
  letter-spacing: 0.08em;
}
.flex_container {
  display: flex;
}
.grid_container {
  display: grid;
}
p.en {
  font-family: var(--font-en);
  letter-spacing: 0.08em;
}
.pc_none {
  display: none;
}
.fadeIn {
  opacity : 0;
  transform : translate(0, 20px);
  transition : all 1s;
}
.fadeIn.active{
  opacity : 1;
  transform : translate(0, 0);
}
#header {
  position: relative;
}
#header .header_wrapper {
  width: 100%;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  padding-top: min(2vw,30px);
}
#header .header_inner {
  z-index: 9999999;
  position: relative;
} 
#header .header_head {
  width: min(var(--w1000), 90vw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: min(2vw,16px);
}
@media (min-width:1664px){
  #header .header_head {
    width: 1640px;
  }
}
@media (min-width:1400px){
  #header .header_head {
    width: 1320px;
  }
}
@media (min-width:1200px){
  #header .header_head {
    width: 1140px;
  }
}
@media (min-width:992px){
  #header .header_head {
    width: 960px;
  }
}
#header .header_wrapper h1 img{
  width: 197px;
  position: relative;
  z-index: 99999;
}
#header.fixed {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  transition: 1s;
  z-index: 999999;
}
#header.fixed .header_wrapper {
  padding: 0;
}
#header.fixed .header_inner {
  background-color: rgb(0, 0, 0, .3);
}
#header .header_right {
  display: flex;
  align-items: center;
  gap: min(2vw, 20px);
}
#header .header_wrapper .logo img{
  width: 140px;
  position: relative;
  z-index: 99999;
}
#header .hamburger {
  border: none;
  width: 55px;
  height: 55px;
  background: transparent;
  position: relative;
  z-index: 99999;
  cursor: pointer;
}
#header .hamburger .hamburger_bar{
  display: inline-block;
  width: 50%;
  height: 2px;
  background-color: var(--white);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  transition: .5s;
}
#header .hamburger .hamburger_bar:first-child {
  top: 13px;
}
#header .hamburger .hamburger_bar:nth-child(2) {
  top: 24px;
}
#header .hamburger .hamburger_bar:last-child {
  top: 35px;
}
#header .hamburger_open .hamburger_bar:first-child {
  transform: translateX(-50%) translateY(-50%) rotate(45deg);
  top: 50%;
}
#header .hamburger_open .hamburger_bar:last-child {
  transform: translateX(-50%) translateY(-50%) rotate(-45deg);
  top: 50%;
}
#header .hamburger_open .hamburger_bar:nth-child(2) {
  display: none;
}
#header .header_nav {
  display: none;
  background: linear-gradient(360deg, rgba(9,24,51,1) 0%, rgba(5,12,25,1) 80%, rgba(2,2,3,1) 100%);
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100vh;
  z-index: 9999;
}
#header .header_nav ul {
  width: min(var(--w1000), 80vw);
  margin: 0 auto;
  padding: 100px 0;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
}
#header .header_nav ul li .en{
  font-size: var(--fz18);
  padding-bottom: 5px;
}
#header .header_nav ul li .ja{
  font-size: var(--fz22);
  font-weight: 600;
}
#header .header_nav ul li{
  padding-top: 40px;
}
#header .header_nav ul li:first-child .en{
  font-size: var(--fz22);
  font-weight: 600;
  padding-bottom: 0;
}
#main h3 {
  font-family: var(--font-en);
  font-size: var(--fz24);
  padding-bottom: 20px;
}
#main .title_ja {
  font-size: var(--fz40);
  line-height: 1.5;
  font-weight: 600;
  padding-bottom: 30px;
}
#main .title_ja + p {
  line-height: 2;
}
#overview, #roadmap, #flow, #highlights, #components{
  width: min(var(--w1000),90vw);
  margin: 0 auto;
}
#overview, #roadmap, #flow{
  padding: min(100px,30vw) 0 0;
}
#highlights, #gallery {
  padding: min(100px,30vw) 0;
}
#kv {
  position: relative;
  z-index: -1;
}
#kv .kv_lead {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
}
#kv .kv_img img{
  width: 100%;
  height: 100vh;
  object-fit: cover;
}
#kv .kv_logo{
  text-align: center;
  margin-bottom: min(3vw,30px);
  opacity: 0;
  animation: fadeUp_kv .8s ease-in-out .5s 1 normal forwards;
}
#kv .kv_logo img {
  width: 340px;
}
@keyframes fadeUp_kv{
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
#kv .kv_copy {
  width: min(var(--w1000),90vw);
  text-align: center;
  opacity: 0;
  animation: fadeUpCopy .8s ease-in-out 1s 1 normal forwards;
}
@keyframes fadeUpCopy{
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
#kv .kv_copy p:first-child{
  font-size: var(--fz16);
}
#kv .kv_copy p.en{
  font-size: var(--fz14);
}
#kv .kv_copy p:last-child{
  font-size: var(--fz28);
  padding-top: min(5vw,30px);
  font-weight: 600;
}
#index_head {
  position: relative;
  margin: min(100px,40vw) auto;
}
#index_head::before {
  content: "";
  filter: blur(20px);
  width: 100%;
  height: min(40vw,120px);
  position: absolute;
  background-color: #172F5E;
  z-index: 9999;
  top: min(-40px,20vw);
  left: 0;
}
#index_head::after {
  content: "";
  filter: blur(20px);
  width: 100%;
  height: min(40vw,120px);
  position: absolute;
  background-color: #172F5E;
  z-index: 9999;
  bottom: min(-40px,20vw);
  left: 0;
}
#index_head .head_wrapper{
  position: relative;
  overflow: hidden;
  padding: min(200px,40vw) 0;
}
#index_head .intro_bg{
  position: absolute;
  top: 110%;
  left: 50%;
  transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  opacity: 0.1;
  mix-blend-mode: screen;
  width: min(1100px,100vw);
}
#index_head .intro_bg img{
  object-fit: cover;
  width: 100%;
  height: auto;
}
#index_head .head_intro{
  width: min(540px,80vw); 
  margin: 0 auto;
  position: relative;
  z-index: 10;
}
#index_head h2{
  width: min(540px,80vw); 
  font-size: var(--fz44);
  padding-bottom: 40px;
  font-weight: 600;
  margin: 0 auto;
  line-height: 1.6;
  position: relative;
  z-index: 10;
}
#index_head .head_intro p{
  line-height: 2;
  margin-bottom: 30px;
}
#overview .flex_container {
  gap: min(20px,20vw);
}
#overview .explanation {
  width: 60%;
}
#overview .explanation p:last-child{
  width: min(495px,40vw);
}
#overview .explanation_illust img{
  width: min(410px,40vw);
}
#overview .p4sd h4 {
  text-align: center;
  padding: 40px 0;
}
#overview .p4sd h4 img{
  width: 220px;
}
#overview .p4sd .p4sd_img img{
  width: 100%;
}
#roadmap .roadmap_timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 60px;
  position: relative;
}
#roadmap .move::before {
  content: "";
  width: 2px;
  height: 0;
  position: absolute;
  top: 0;
  left: min(20.5px,2.5vw);
  border-right: 4px solid;
  border-image: linear-gradient(to bottom, var(--blue) 0%, var(--light-blue) 58%, var(--yellow)) 1;
  animation: line_map 3s ease-in-out forwards;
}
  @keyframes line_map {
    from {
      height: 0;
    }
    to {
      height: 100%;
    }
}

#roadmap .timeline_box p.en {
  font-size: var(--fz32);
  font-family: var(--font-en);
  font-weight: 600;
  padding-bottom: 20px;
  position: relative;
  display: flex;
  align-items: center;
  gap: 20px;
}
#roadmap .timeline_box p.en span{
  font-size: var(--fz24);
}
#roadmap .timeline_box p.en::before {
  content: "";
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: var(--white);
  position: absolute;
  left: max(-36px,-5vw);
} 
#roadmap .timeline_box p.en + p {
  line-height: 2;
}
#roadmap .timeline_box {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
}
#roadmap .timeline_box .description {
  width: min(520px,40vw);
  padding-left: min(50px,6vw);
}
#roadmap .timeline_box .illust{
  width: min(400px,40vw);
  text-align: center;
}
#roadmap .timeline_box .illust img{
  width: 100%;
  height: min(340px, 40vw);
  object-fit: contain;
}
#flow .grid_container{
  grid-template-columns: 1fr;
  gap: 50px;
}
#flow .flow_box{
  display: grid;
  grid-template-columns: min(160px,10vw) 1fr 1fr;
  text-align: center;
  align-items: center;
  gap: min(50px,12vw) min(20px,10vw);
}
#flow .flow_box .flow_year{
  grid-column: 1;
  grid-row: 2;
  font-family: var(--font-en);
  font-size: min(var(--fz30),3vw);
  font-weight: 600;
} 
#flow .flow_box .number {
  font-family: var(--font-en);
  font-size: min(var(--fz24),3vw);
  background-color: var(--white);
  color: var(--black);
  border-radius: 50%;
  width: min(44px,5vw);
  height: min(44px,5vw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}
#flow .flow_box .flow_center{
  grid-column: 2;
  position: relative;
}
/*  flow_center */
#flow .flow_box.first .move::before{
  content: "";
  border-right: 5px solid;
  border-image: linear-gradient(to bottom, var(--blue) 0%, var(--light-blue) 65%, var(--yellow)) 1;
  height: 0;
  width: auto;
  margin-inline: auto;
  position: absolute;
  z-index: -1;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  animation: line01 3s ease-in-out forwards;
}
@keyframes line01 {
  from {
    height: 0;
  }
  to {
    height: min(1450px, 2790%);
  }
}
#flow .flow_box.first .move::after{
  content: "";
  width: 0;
  height: 0;
  border-left: min(12px,4vw) solid transparent;
  border-right: min(12px,4vw) solid transparent;
  border-top: min(17px,3vw) solid var(--yellow);
  position: absolute;
  top: min(1450px, 2790%);
  left: 50%;
  transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
  -ms-transform: translateX(-50%);  
  animation: arrow01 .5s ease-in-out 3s forwards;
  opacity: 0;
}
@keyframes arrow01 {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
#flow .flow_box .flow_right{
  grid-column: 3;
  position: relative;
}
/*  flow_right */
#flow .flow_box.first .moveR::after {
  content: "";
  border-bottom: 5px solid;
  border-right: 5px solid;
  border-image: linear-gradient(to bottom, var(--blue) 0%, var(--light-blue) 61%, var(--yellow)) 1;
  height: 0;
  width: 0;
  margin-inline: auto;
  position: absolute;
  right: min(198.5px,18.5vw);
  top: 0;
  z-index: -1;
  animation: line02 3s ease-in-out 3s forwards, line03 3s ease-in-out forwards;
}
@keyframes line02 {
  from {
    width: 0;
  }
  to {
    width: 103%;
  }
}
@keyframes line03 {
  from {
    height: 0;
  }
  to {
    height: min(1132px,2195%);
  }
}
#flow .flow_box.first .moveR::before {
  content: "";
  width: 0;
  height: 0;
  border-top: min(12px,4vw) solid transparent;
  border-right: min(17px,3vw) solid var(--yellow);
  border-bottom: min(12px,4vw) solid transparent;
  position: absolute;
  top: min(1122px,2176%);
  left: -55%;
  z-index: -1;
  animation: arrow02 .5s ease-in-out 6s forwards;
  opacity: 0;
}
@keyframes arrow02 {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
#flow .flow_box .flow_center, 
#flow .flow_box .flow_right {
  display: grid;
  gap: min(5vw,40px);
  align-items: baseline;
} 
#flow .flow_box .flow_center p,
#flow .flow_box .flow_right p{
  font-size: min(var(--fz20),2.5vw);
  padding: 10px 0;
  border: 1px solid var(--white);
  margin: 0 min(50px,2vw);
  background: var(--bg-cor-basic);
} 
#flow .flow_box.first {
  gap: min(10px,5vw) min(20px,10vw);
  margin-bottom: min(10px,1vw);
}
#flow .flow_box.first p {
  border: none;
  background: none;
  font-weight: 600;
}
#flow .flow_box.first .flow_center, 
#flow .flow_box.first .flow_right {
  background-color: var(--blue);
}
#flow .flow_box .large {
  grid-column: 2 / 4;
  padding: min(30px,4vw);
  border: 3px solid var(--white);
  font-size: var(--fz24);
}
#flow .flow_box.last {
  position: relative;
  z-index: -2;
}
#flow .flow_box.num9 .number{
  grid-row: 1 / 3;
}
#flow .flow_wapper .foot {
  position: relative;
}
#flow .flow_wapper .move::before{
  content: "";
  width: 1px;
  height: 85%;
  border-right: 1px solid;
  border-image: linear-gradient(to bottom, var(--blue) 0%, var(--light-blue) 50%, var(--yellow)) 1;
  position: absolute;
  left: min(80px,5vw);
  top: 30px;
  z-index: -1;
  animation: line 3s ease-in-out forwards;
}
  @keyframes line {
    from {
      height: 0;
    }
    to {
      height: 85%;
    }
}
#flow .flow_box.num8 {
  position: relative;
}
#flow .flow_box.num8::before{
  content: "";
  width: 95%;
  height: 2px;
  position: absolute;
  left: min(80px,5vw);
  top: 50%;
  z-index: -1;
  background: radial-gradient(var(--white) 46%, transparent 10%) center/ 15px 10px;
}
#highlights .grid_container{
  grid-template-columns: 1fr 1fr;
  gap: min(20px,5vw);
}
#highlights .highlights_box{
  border: 1px solid var(--white);
  padding: min(50px,5vw) min(40px,2vw);
}
#highlights .highlights_box h4{
  padding-bottom: min(20px,3vw);
  font-size: var(--fz24);
}
#highlights .highlights_box .tag{
  border: 1px solid var(--white);
  padding: min(5px,1vw) min(10px,1.5vw);
  display: inline-block;
  margin-bottom: min(5vw,15px);
}
#highlights .highlights_box .text{
  line-height: 1.68;
}
#highlights .highlights_box.label {
  position: relative;
}
#highlights .highlights_box.label::before {
  content: "COMPLETE";
  width: min(90px,8vw);
  position: absolute;
  top: 0;
  right: 0;
  text-align: center;
  font-weight: 600;
  font-family: var(--font-en);
  font-size: var(--fz14);
  background-color: var(--white);
  color: var(--blue);
  padding: min(1vw,5px);
}
#components {
  background: #040c1a;
  width: 100%;
  padding: min(80px,60vw) 0;
}
#components h3,
#components .flex_container{
  width: min(var(--w1000),90vw);
  margin: 0 auto;
}
#components .flex_container {
  justify-content: space-between;
  gap: min(40px,8vw);
}
#components .flex_container .spec{
  flex: 1;
}
#components .flex_container .spec_illust{
  flex: 1;
}
#components .flex_container .spec table {
  width: 100%;
}
#components .flex_container .spec th {
  text-align: left;
  font-weight: 600;
}
#components .flex_container .spec th,
#components .flex_container .spec td {
  padding: min(20px,3vw);
}
#components .flex_container .spec table,
#components .flex_container .spec table th,
#components .flex_container .spec table td {
  border: 1px solid var(--white);
    border-collapse: collapse;
}
#components .flex_container .spec td:first-child {
  width: 150px;
}
#gallery h3,
#gallery .title_ja {
  width: min(var(--w1000),90vw);
  margin: 0 auto;
}
#gallery .slider_wrapper {
  margin: 0 auto;
  width: 100%;
  position: relative;
}
#gallery  .slider_item {
  margin: 0;
}
#gallery .slider_item img {
  height: auto;
  opacity: .3;
  transform: scale(.9);
  transition: opacity .5s, transform .5s;
  width: 100%;
}
#gallery .slider_wrapper .slick-center img {
  opacity: 1;
  transform: scale(1);
}
#gallery .prev-arrow {
  position: absolute;
  z-index: 999;
  top: 50%;
  left: min(10vw,570px);
  transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
}
#gallery .next-arrow {
  position: absolute;
  z-index: 999;
  top: 50%;
  right: min(10vw,570px);
  transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
}
#gallery .prev-arrow,
#gallery .next-arrow {
    display: block;
    width: 50px;
    height: 50px;
    background: #fff;
    border-radius: 50%;
    transition: all .3s ease;
    cursor: pointer;
}
#gallery .prev-arrow::before,
#gallery .next-arrow::before{
    position:absolute;
    content: "";
    width:10px;
    height:10px;
    border-right: 2px solid #000;
    border-top: 2px solid #000;
    top:0;
    bottom:0;
    margin:auto;
}
#gallery .prev-arrow::before {
  transform:rotate(225deg);
  left: 21px;
}
#gallery .next-arrow::before {
  transform:rotate(45deg);
  right: 21px;
}

#footer {
  text-align: center;
  padding: min(20px,5vw);
  background-color: var(--black);
}
#footer .poweredby {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: min(60px,4vw);
  padding: min(45px,30vw) 0;
}
#footer .poweredby p{
  font-size: var(--fz24);
  font-weight: 600;
}
#footer .poweredby .logo_isc img{
  width: min(300px,30vw);
}

@media (any-hover: hover) {
  a:hover {
    opacity: .8;
  }
}

/* SP */
@media (max-width:768px){
  :root {
    --sp-fz24: 3.2vw;
    --sp-fz28: 3.73vw;
    --sp-fz32: 4vw;
    --sp-fz36: 4.8vw;
    --sp-fz40: 5vw;
    --sp-fz48: 6vw;
    --sp-fz64: 8.53vw;
    --sp-w90: 89.33vw;
  }
  body {
    font-size: var(--sp-fz32);
  }
  p {
    line-height: 1.6;
  }
  .pc_none {
    display: inline-block;
  }
  .sp_none {
    display: none;
  }
  #header .header_wrapper h1 img{
    width: 33.07vw;
    margin-left: 3vw;
  }
  #header .header_wrapper {
    padding: 0;
  }
  #header .header_head {
    width: 100vw;
    padding: 0;
  }
  #header.fixed {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    transition: 1s;
    z-index: 999999;
  } 
  #header.fixed .header_head {
    padding: 1vw 0;
  } 
  #header .header_right {
    gap: 3vw;
  }
  #header .header_wrapper .logo img{
    width: 27vw;
  }
  #header .hamburger {
    width: 14vw;
    height: 14vw;
  }
  #header .hamburger .hamburger_bar{
    width: 7vw;
  }
  #header .hamburger .hamburger_bar:first-child {
    top: 35%
  }
  #header .hamburger .hamburger_bar:nth-child(2) {
    top: 50%;
  }
  #header .hamburger .hamburger_bar:last-child {
    top: 65%;
  }
  #header .hamburger_open .hamburger_bar:first-child {
    transform: translateX(-50%) translateY(-50%) rotate(45deg);
    top: 50%;
  }
  #header .hamburger_open .hamburger_bar:last-child {
    transform: translateX(-50%) translateY(-50%) rotate(-45deg);
    top: 50%;
  }
  #header .header_nav {
    top: 0;
    right: 0;
    width: 100%;
    z-index: 9999;
    border: 1px solid rgba(2,2,3,1);
    box-sizing: border-box;
    height:100vh;
  }
  #header .header_nav ul {
    width: 84vw;
    padding: 16vw 0;
    position: absolute;
    top: 48%;
    left: 50%;
    transform: translate(-50%, -50%);
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
  }
  #header .header_nav ul li .en{
    font-size: var(--sp-fz24);
    padding-bottom: 0.5vw;
  }
  #header .header_nav ul li .ja{
    font-size: var(--sp-fz32);
  }
  #header .header_nav ul li{
    padding-top: 5vw;
  }
  #header .header_nav ul li:first-child .en{
    font-size: var(--sp-fz34);
  }
  #main h3 {
    font-size: var(--sp-fz24);
    padding-bottom: 2vw;
  }
  #main .title_ja {
    font-size: var(--sp-fz48);
    line-height: 1.4;
    padding-bottom: 9vw;
  }
  #main .title_ja + p {
    line-height: 1.5;
  }
  #index_head, #overview, #roadmap, #flow, #highlights, #components{
    width: 89.33vw;
  }
  #roadmap, #flow{
    padding: 25vw 0 0;
  }
  #highlights, #gallery {
    padding: 25vw 0;
  }
  #overview{
    padding: 40vw 0 0;
  }
  #kv {
    position: relative;
    z-index: -1;
  }
  #kv .kv_img img{
    width: 100%;
    height: 100vh;
    object-fit: cover;
  }
  #kv .kv_lead {
    position: absolute;
    top: 54%;
    left: 50%;
    transform: translate(-50%, -50%);
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
  }
  #kv .kv_logo {
    margin-bottom: 6vw;
  }
  #kv .kv_logo img {
    width: 59vw;
  }
  #kv .kv_copy {
    width: 90vw;
  }
  #kv .kv_copy p:first-child{
    font-size: var(--sp-fz26);
  }
  #kv .kv_copy p.en{
    font-size: var(--sp-fz24);
  }
  #kv .kv_copy p:last-child{
    font-size: var(--sp-fz36);
    padding-top: 9vw;
    font-weight: 600;
  }
  #index_head {
    position: relative;
    margin: 14vw auto 28vw;
  }
  #index_head::before {
    content: "";
    filter: blur(2vw);
    width: 100%;
    height: 10vw;
    top: -2vw;
    left: 0;
  }
  #index_head::after {
    content: "";
    filter: blur(2vw);
    width: 100%;
    height: 10vw;
    bottom: -2vw;
    left: 0;
  }
  #index_head .head_wrapper{
    padding: 25vw 0;
  }
  #index_head .intro_bg{
    position: absolute;
    top: 63%;
    left: 50%;
    width: 120%;
  }
  #index_head .head_intro{
    width: var(--sp-w90); 
  }

  #index_head .head_intro{
    width: 83vw; 
    margin: 0 auto;
  }
  #index_head h2{
    font-size: var(--sp-fz48);
    padding-bottom: 6vw;
    width: 83vw;
  }
  #index_head .head_intro p{
    font-size: 3.6vw;
    line-height: 1.8;
    margin-bottom: 5vw;
  }
  #overview .flex_container {
    gap:0;
    display: block;
    position: relative;
  }
  #overview .explanation .title_ja{
    letter-spacing: 0.06em;
  }
  #overview .explanation {
    width:var(--sp-w90);
  }
  #overview .explanation p:last-child{
    width: var(--sp-w90);
  }
  #overview .explanation_illust {
    position: absolute;
    top: -70vw;
  }
  #overview .explanation_illust img{
    width: 90vw;
  }
  #overview .p4sd h4 {
    text-align: center;
    padding: 8vw 0 4vw;
  }
  #overview .p4sd h4 img{
    width: 29vw;
  }
  #overview .p4sd .p4sd_img img{
    width: 100%;
  }
  #roadmap .roadmap_timeline {
    gap: 2vw;
  }
  #roadmap .move::before {
    content: "";
    width: auto;
    height: 100%;
    left: 1.2vw;
    border-right: 3px solid;
    animation: line_map 5s ease-in-out forwards;
  }
  #roadmap .timeline_box {
    position: relative;
    background: linear-gradient(90deg, hsla(0, 0%, 100%, 0) 0%, hsla(0, 0%, 100%, 0) 7%, hsla(0, 0%, 100%, 0.1) 7%);
  }
  #roadmap .timeline_box::before {
    content: "";
    position: absolute;
    top: 6.5vw;
    left: 3.7vw;
    height: 3vw;
    aspect-ratio: cos(30deg);
    clip-path: polygon(100% 0,0 50%,100% 100%);
    background: hsla(0, 0%, 100%, 0.1) 0%;
  }
  #roadmap .timeline_box p.en {
    font-size: var(--sp-fz40);
    padding: 4vw 0 3vw;
    gap: 3vw;
  }
  #roadmap .timeline_box p.en span{
    font-size: var(--sp-fz28);
  }
  #roadmap .timeline_box p.en::before {
    content: "";
    width: 3vw;
    height: 3vw;
    left: -9vw;
  } 
  #roadmap .timeline_box p.en + p {
    line-height: 1.5;
    width: 78vw;
    font-size: var(--sp-fz26);
    text-align: justify;
  }
  #roadmap .timeline_box {
    gap: 20px;
  }
  #roadmap .timeline_box .description {
    width: 81.33vw;
    padding-left: 9vw;
  }
  #roadmap .timeline_box .illust{
    width: 100%;
    padding-left: 5vw;
  }
  #roadmap .timeline_box .illust img{
    margin-top: 2vw;
    margin-bottom: 6vw;
    width: auto;
    height: 55vw;
  }
  #roadmap .timeline_box .illust.roadmap2 img{
    height: 38vw;
  }
  #roadmap .timeline_box .illust.roadmap3 img,
  #roadmap .timeline_box .illust.roadmap4 img{
    height: 50vw;
  }
  #flow .grid_container{
    gap: 5vw;
  }
  #flow .flow_box{
    grid-template-columns: 11vw 1fr 1fr;
    gap: 5vw 1.33vw;
    align-items: baseline;
  }
  #flow .flow_box.last {
    position: relative;
    z-index: -2;
  }
  #flow .flow_box.num6{
    align-items: center;
  }
  #flow .flow_box .flow_year{
    grid-column: 1;
    grid-row: 2;
    font-family: var(--font-en);
    font-size: min(var(--fz30),3vw);
    font-weight: 600;
  } 
  #flow .flow_box .number {
    font-size: var(--sp-fz28);
    width: 6vw;
    height: 6vw;
  }
  #flow .flow_box .flow_center{
    grid-column: 2;
    position: relative;
  }
  #flow .flow_box.first .move::before{
    content: "";
    border-right: 0.53vw solid;
    border-image: linear-gradient(to bottom, var(--blue) 0%, var(--light-blue) 65%, var(--yellow)) 1;
    height: 2190%;
    top: 15vw;
    animation: line01 3s ease-in-out forwards;
  }
  @keyframes line01 {
    from {
      height: 0;
    }
    to {
      height: 2190%;
    }
  }
  #flow .flow_box.first .move::after{
    border-left: 2vw solid transparent;
    border-right: 2vw solid transparent;
    border-top: 3vw solid var(--yellow);
    position: absolute;
    top: 2330%;
  }
  #flow .flow_box .flow_right{
    grid-column: 3;
    position: relative;
  }
  #flow .flow_box.first .moveR::after {
    content: "";
    border-bottom: 0.53vw solid;
    border-right: 0.53vw solid;
    border-image: linear-gradient(to bottom, var(--blue) 0%, var(--light-blue) 61%, var(--yellow)) 1;
    height: 0;
    width: 0;
    right: 18.5vw;
    top: 15vw;
    animation: line02 3s ease-in-out 3s forwards, line03 3s ease-in-out forwards;
  }
  @keyframes line02 {
    from {
      width: 0;
    }
    to {
      width: 30vw;
    }
  }
  @keyframes line03 {
    from {
      height: 0;
    }
    to {
      height: 1695%;
    }
  }
  #flow .flow_box.first .moveR::before {
    content: "";
    position: static;
    display: none;
  }
  #flow .flow_box .flow_center, 
  #flow .flow_box .flow_right {
    gap: min(5vw,40px);
    align-items: baseline;
  } 
  #flow .flow_box .flow_center p,
  #flow .flow_box .flow_right p{
    font-size: var(--sp-fz28);
    padding: 1.33vw;
    margin: 0 0.5vw;
    line-height: 1.5;
  } 
  #flow .flow_box.first {
    gap: 1.33vw 1.33vw;;
    margin-bottom: 1.33vw;
  }
  #flow .flow_box.first p {
    padding: 2vw;
    font-size: var(--sp-fz32);
  }
  #flow .flow_box.first .flow_year p {
    font-size: var(--sp-fz28);
  }
  #flow .flow_box.first .flow_center, 
  #flow .flow_box.first .flow_right {
    background-color: var(--blue);
  }
  #flow .flow_box .large {
    padding: 4vw;
    border: 2px solid var(--white);
    font-size: var(--sp-fz32);
    margin-top: 3vw;
  }
  #flow .flow_box.num9 {
    align-items: center;
  }
  #flow .flow_wapper .move::before{
    border-right: 2px solid;
    border-image: linear-gradient(to bottom, var(--blue) 0%, var(--light-blue) 50%, var(--yellow)) 1;
    position: absolute;
    left: 5vw;
    top: 6vw;
  }
  #flow .flow_box.num8::before{
    width: 93%;
    height: 2px;
    left: 7.1vw;
    top: 115%;
    z-index: -1;
    background: radial-gradient(var(--white) 40%, transparent 10%) center/ 2.5vw 5vw;
  }
  #highlights .grid_container{
    grid-template-columns: 1fr;
    gap: 5.33vw;
  }
  #highlights .highlights_box{
    padding: 10vw 4.53vw;
  }
  #highlights .highlights_box h4{
    padding-bottom: 4vw;
    font-size: var(--sp-fz40);
  }
  #highlights .highlights_box .tag{
    padding: 1.33vw 1.33vw;
    margin-bottom: 4.67vw;
  }
  #highlights .highlights_box .text{
    line-height: 1.5;
  }
  #highlights .highlights_box.label {
    position: relative;
  }
  #highlights .highlights_box.label::before {
    content: "COMPLETE";
    width: 20vw;
    font-size: var(--sp-fz24);
    padding: 1.33vw;
  }
  #components {
    padding: 12vw 0;
    width: 100%;
  }
  #components h3,
  #components .flex_container{
    width: var(--sp-w90);
  }
  #components .flex_container {
    flex-wrap: wrap;
    flex-direction: column-reverse;
    justify-content: space-between;
    gap: 7vw;
  }
  #components .flex_container .spec{
    width: var(--sp-w90);
  }
  #components .flex_container .spec_illust img{
    width: var(--sp-w90);
  }
  #components .flex_container .spec th,
  #components .flex_container .spec td {
    padding: 3vw;
  }
  #components .flex_container .spec td:first-child {
    width: 31vw;
  }
  #components .flex_container .spec th {
    font-size: var(--sp-fz36);
  }
  #gallery h3,
  #gallery .title_ja {
    width: var(--sp-w90);
  }
  #gallery .next-arrow {
    top: 50%;
    right: 10vw;
  }
  #gallery .prev-arrow,
  #gallery .next-arrow {
      width: 10.67vw;
      height: 10.67vw;
  }
  #gallery .prev-arrow::before,
  #gallery .next-arrow::before{
      width:3vw;
      height:3vw;
  }
  #gallery .prev-arrow::before {
    left: 4.5vw;
  }
  #gallery .next-arrow::before {
    right: 4.5vw;
  }
  #footer {
    padding: 4vw;
  }
  #footer .poweredby {
    gap: 5vw;
    padding: 5vw 0;
  }
  #footer .poweredby p{
    font-size: var(--sp-fz28);
  }
  #footer .poweredby .logo_isc img{
    width: 49vw;
  }
}