@charset "UTF-8";
@import url(../css2);
:root {
  --body-font: 'Sawarabi Mincho', serif;
  --en-font: 'Yeseva One', cursive;
  --white: #fffffd;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  box-shadow: none;
  outline: 0;
}
html {
  height: auto;
}
body {
  height: auto;
  font-family: var(--body-font);
  background: #000;
}
h1,
h2,
h3,
h4 {
  font-weight: 400;
}
li {
  list-style: none;
}
a,
a:visited {
  text-decoration: none;
  cursor: pointer;
  display: block;
  color: #000;
}
p {
  color: var(--white);
}
img {
  display: block;
  width: 100%;
  height: auto;
}
::-moz-selection {
  background: var(--white);
  color: #000;
}
::selection {
  background: var(--white);
  color: #000;
}
.pc,
.pc-only {
  display: block;
}
.sp {
  display: contents;
}
.sp-only {
  display: none;
}
@media (max-width: 768px) {
  .sp,
  .sp-only {
    display: block;
  }
  .pc {
    display: contents;
  }
  .pc-only {
    display: none;
  }
}
.textwrap {
  display: block;
  overflow: hidden;
}
.inside {
  display: block;
  margin-top: 1vw;
  transform: translateY(100%);
  transition: transform 1.5s 0s cubic-bezier(0.4, 0, 0, 1);
}
.split {
  display: inline-block;
}
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 10;
}
.header__inner {
  padding: 2.813rem 3.063rem 0 3.5rem;
}
.header__container {
  display: flex;
  justify-content: space-between;
}
.header__logo a {
  display: flex;
}
.header__logo a span {
  display: block;
  opacity: 0;
}
.header__logo a span:nth-of-type(1),
.header__logo a span:nth-of-type(4),
.header__logo a span:nth-of-type(5) {
  margin-right: 4px;
}
.header__logo a span:nth-of-type(2) {
  margin-right: 3px;
}
.-c {
  width: 15rem;
}
.-r {
  width: 1.062rem;
}
.-a {
  width: 1.312rem;
}
.-t {
  width: 1.125rem;
}
.-e {
  width: 0.937rem;
}
.header__button {
  display: none;
}
.header__list {
  display: flex;
  align-items: center;
  gap: 1.813rem;
  opacity: 0;
}
.header__list-a {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1.813rem;
  opacity: 0;
  margin-top: 1vw;
}
.header__list-b {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.813rem;
  opacity: 0;
  margin-top: 1vw;
}

.header__item-a a {
  display: flex; 
  align-items: center; 
  width: 25px;
  height: 25px;
  margin-left: 13px;
}

.header__item-a-nasa a {
  display: flex; 
  align-items: center; 
  width: 30px;
  height: 30px;
  margin-left: 13px;
}

.header__item-b a {
  width: 25px;
  height: 25px;
}
.header__item-nasa a {
  width: 30px;
  height: 30px;
}
.header__item a {
  color: var(--white);
  font-family: var(--en-font);
  font-size: 1rem;
  line-height: 1.2;
  letter-spacing: 0.15em;
}
.header__item:last-child a::after {
  display: inline-block;
  content: '';
  background: url(../images/nav_icon.svg) center no-repeat;
  background-size: contain;
  width: 11px;
  height: 11px;
  margin-left: 7px;
}
.cloud {
  width: 10000px;
  height: 1000px;
  background: transparent url(../images/cloud.webp) repeat-x;
  background-size: 1000px;
  background-position: center;
  position: absolute;
  right: 0;
  top: 50%;
  bottom: 0;
  transform: translateY(-50%);
  z-index: 1;
  animation: cloud 550s linear infinite;
  opacity: 0;
}
@keyframes cloud {
  100% {
    background-position: 100% 0;
  }
}
.space {
  position: relative;
}
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  background: linear-gradient(180deg, #000 0, #000 80%, transparent 80%, transparent 100%);
}
.hero::after {
  display: block;
  content: '';
  background: url(../images/bg.webp) no-repeat;
  background-size: cover;
  background-position: bottom;
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 20%;
  z-index: -1;
}
.hero__inner {
  width: 100%;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}
.hero__lead {
  position: absolute;
  width: fit-content;
  top: 50%;
  left: 6.437rem;
  transform: translateY(-50%);
  z-index: 2;
}
.hero__lead .js-hero-lg {
  display: block;
  margin-bottom: 1.375rem;
  font-family: var(--en-font);
  font-size: 96px;
  font-weight: 900;
}
.hero__lead .js-hero-sm {
  font-family: var(--en-font);
  font-size: 30px;
  line-height: 1.2;
  letter-spacing: 0.06em;
}
.hero__container {
  position: relative;
  right: -22vw;
}
.hero__bg {
  height: 100%;
  opacity: 0;
}
.hero__bg img {
  height: 100%;
  object-fit: contain;
}
.hero__copyright {
  position: absolute;
  top: 50%;
  right: 3.062rem;
  transform: translateY(-50%);
  font-family: var(--en-font);
  font-size: 0.875rem;
  color: #000;
  letter-spacing: 0.09em;
  writing-mode: vertical-rl;
  z-index: 2;
}
.hero__copyright .line {
  display: inline-block !important;
  margin-bottom: 6px;
}
.hero__text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: flex-end;
  gap: 15.18vw;
  padding-right: 1.544vw;
}
.hero__num {
  width: 158px;
  opacity: 0;
}
.hero__logo {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  font-family: var(--en-font);
}
.-number {
  display: block;
  font-size: 176px;
  line-height: 0.7;
  margin-bottom: 0.875rem;
}
.-anniversary {
  font-size: 27px;
  line-height: 1;
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}
.-date {
  font-size: 31px;
  line-height: 1;
}
#hero-particles-js {
  position: absolute;
  width: 100%;
  height: 100%;
  bottom: 0;
  left: 0;
  z-index: -10;
}
.particles-js-canvas-el {
  display: block;
}
.message {
  position: relative;
  padding-inline: 2rem;
}
.message::after {
  display: block;
  content: '';
  position: absolute;
  background: url(../images/earth.webp) no-repeat;
  background-size: cover;
  background-position: bottom;
  width: 100%;
  height: 34.375vw;
  bottom: 0;
  left: 0;
}
.message.scroll {
  padding-top: 120px;
  margin-top: -120px;
}
.message__inner {
  width: fit-content;
  margin: 0 auto;
  padding-bottom: 34.375vw;
}
.message__lead {
  color: var(--white);
  font-family: var(--body-font);
  font-size: 3.125rem;
  margin-bottom: 1.75rem;
}
.message__text {
  max-width: 1000px;
  margin: 0 auto;
  font-family: var(--body-font);
  font-size: 1.75rem;
  line-height: 1.2;
}
.message__text .-lg {
  letter-spacing: 0.05em;
}
.message__text .-md {
  letter-spacing: 0.016em;
}
.message__text .-sm {
  letter-spacing: -0.01em;
}
.present__wrap {
  position: relative;
}
.present {
  position: relative;
  overflow-x: clip;
  padding-top: 16.125rem;
}
.loop {
  position: absolute;
  display: flex;
  top: -80px;
}
.loop__text {
  padding-right: 4.444vw;
  color: var(--white);
  font-family: var(--en-font);
  font-size: 10rem;
  white-space: nowrap;
  line-height: 1;
  animation: loopText 10s linear infinite;
  will-change: transform;
}
@keyframes loopText {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-100%);
  }
}
.present__header {
  max-width: 1540px;
  margin: 0 auto;
  padding-left: 5.625rem;
}
.present__header.scroll {
  padding-top: 120px;
  margin-top: -120px;
}
.present__title {
  color: var(--white);
}
.present__title .en {
  font-family: var(--en-font);
  line-height: 1;
}
.present__title .en:nth-of-type(1) {
  font-size: 3.125rem;
  margin-bottom: 0.5rem;
}
.present__title .en:nth-of-type(1) .inside {
  line-height: 1;
}
.present__title .en:nth-of-type(2) {
  font-size: 7.5rem;
  margin-bottom: 1rem;
}
.present__title .ja {
  font-size: 1.25rem;
  margin-top: -4px;
}
.present__image {
  position: relative;
  max-width: 1350px;
  width: 100%;
  margin: 0 auto;
}
.present__image .water:nth-of-type(1) {
  position: absolute;
  max-width: 600px;
  width: 100vw;
  left: -7rem;
  top: -2rem;
  z-index: -1;
}
.present__image .water:nth-of-type(2) {
  position: absolute;
  max-width: 366px;
  width: 7vw;
  top: -10rem;
  left: 10rem;
}
.present__image .note {
  position: relative;
  max-width: 1077px;
  width: 74.866vw;
  top: -7rem;
  left: 18.75rem;
  z-index: -1;
}
.present__lead {
  margin-bottom: 1.625rem;
  font-size: 5rem;
  line-height: 1.4;
}
.present__detail {
  font-size: 1.125rem;
  line-height: 2;
}
.present__inner {
  position: relative;
  max-width: 1540px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  z-index: 3;
}
.present__text {
  position: relative;
  max-width: 643px;
  flex-shrink: 0;
  left: 5.625rem;
}
.present__bg {
  position: absolute;
  right: 0;
  padding-top: 51.6708%;
  max-width: 790px;
  width: 54.861vw;
  margin-left: auto;
}
.present__bg img {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  object-fit: contain;
}
#present-particles-js {
  position: absolute;
  width: 100%;
  height: 100%;
  bottom: 0;
  left: 0;
  z-index: -10;
}
.corporate {
  position: relative;
  z-index: 3;
  padding-inline: 1.25rem;
  margin-top: 10vw;
}
.corporate__link {
  max-width: 1000px;
  margin-top: 1vw;
  padding-inline: 1.625rem 1.6875rem;
  border: 1px solid var(--white);
  height: 69px;
  line-height: 69px;
}
.corporate__link a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--white);
  font-family: var(--en-font);
  font-size: 1rem;
}
.corporate__link a::after {
  content: '';
  width: 8px;
  height: 8px;
  border-top: 1px solid var(--white);
  border-right: 1px solid var(--white);
  transform: rotate(45deg);
}
.js-mask {
  opacity: 0;
  color: transparent;
  overflow: hidden;
  position: relative;
}
.js-mask::after {
  background: var(--white);
  content: '';
  display: block;
  top: 0;
  bottom: -1px;
  left: 0;
  right: 0;
  position: absolute;
  transform: translateX(100%);
}
.js-mask.fadein {
  color: var(--white);
  opacity: 1;
  transition: all 1.8s;
  animation-delay: 0.5s;
}
.js-mask.fadein::after {
  animation: mask-bg 1.3s cubic-bezier(0.8, 0, 0.17, 1);
}
@keyframes mask-bg {
  0% {
    transform: translateX(-100%);
  }
  40%,
  60% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(100%);
  }
}
.footer {
  padding-block: 10rem 2rem;
}
.footer__content {
  display: flex;
  flex-direction: column;
  align-items: center; 
  justify-content: center; 
  text-align: center;
  margin-bottom: 5vw;
}

.footer__copyright {
  color: var(--white);
  font-family: var(--en-font);
  font-size: clamp(0.5rem, 0.412rem + 0.38vw, 0.75rem);
  letter-spacing: 0.16em;
  text-align: center;
}
@media (max-width: 1080px) {
  .message__lead {
    font-size: 3.472vw;
  }
  .message__text.pc-only {
    font-size: 1.9444vw;
  }
  .present {
    padding-top: 17.916vw;
  }
  .present__header {
    padding-left: 6.25vw;
  }
  .loop {
    top: -11.111vw;
  }
  .loop__text {
    font-size: 20.833vw;
  }
  .present__title .en:nth-of-type(1) {
    font-size: 3.472vw;
  }
  .present__title .en:nth-of-type(2) {
    font-size: 8.333vw;
  }
  .present__title .ja {
    font-size: 1.388vw;
  }
  .present__image .note {
    left: 20.833vw;
  }
  .present__text {
    left: 6.25vw;
  }
  .present__lead {
    font-size: 3.472vw;
  }
  .present__detail.pc-only {
    font-size: 1.488vw;
  }
  .corporate {
    margin-top: 7vw;
  }
}
@media (max-width: 768px) {
  body.is-open {
    height: 100%;
    overflow: hidden;
  }
  .header__button {
    position: relative;
    display: block;
    width: 1.25rem;
    height: 0.6875rem;
    z-index: 10;
    border: none;
    background-color: transparent;
    cursor: pointer;
  }
  .is-open .header__button {
    z-index: 101;
  }
  .header__button.is-open .button__line {
    background: 0 0;
  }
  .header__button.is-open .button__line::before {
    background: var(--white);
    top: 0;
    transform: rotate(45deg);
  }
  .header__button.is-open .button__line::after {
    background: var(--white);
    top: 0;
    transform: rotate(-45deg);
  }
  .button__line {
    display: block;
    width: 20px;
    height: 1px;
    position: absolute;
    top: 25px;
    background-color: var(--white);
    transition: 0.4s;
  }
  .button__line:after,
  .button__line:before {
    position: absolute;
    content: '';
    display: block;
    height: 100%;
    width: 100%;
    background-color: var(--white);
    transition: inherit;
  }
  .button__line:before {
    top: -5px;
  }
  .button__line:after {
    top: 5px;
  }
  .header__menu {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    height: 100dvh;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    opacity: 0;
    visibility: hidden;
    z-index: 50;
    width: 100%;
    height: 100%;
    transition-property: opacity, visibility;
    transition-duration: 0.4s;
    transition-timing-function: ease-out;
  }
  .is-open .header__menu {
    opacity: 1;
    visibility: visible;
    background: #000;
    justify-content: center;
  }
  .header__list {
    opacity: 0;
    flex-direction: column;
    gap: 1.75rem;
  }
  .header__list-a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.813rem;
    margin-top: 0.5vw;
    text-align: center;
  }
  
  .header__item a {
    font-size: 2.5rem;
  }
  .header__item:last-child a::after {
    width: 23px;
    height: 23px;
    margin-left: 13px;
  }
  .header__item-a a {
    margin-top: 15vw;
    font-size: 2.5rem;
  }
  .header__item-a:last-child a::after {
    width: 23px;
    height: 23px;
    margin-left: 13px;
  }
  .header__item-a-nasa a {
    margin-top: 15vw;
    font-size: 2.5rem;
  }
  .header__item-a-nasa:last-child a::after {
    width: 23px;
    height: 23px;
    margin-left: 13px;
  }
  .header__inner {
    padding: 1.125rem 1.25rem 0;
  }
  .header__logo a span:nth-of-type(1),
  .header__logo a span:nth-of-type(2) {
    margin-right: 2px;
  }
  .header__logo a span:nth-of-type(4),
  .header__logo a span:nth-of-type(5) {
    margin-right: 3px;
  }
  .-c {
    width: 150px;
  }
  .-r {
    width: 12px;
  }
  .-a {
    width: 15px;
  }
  .-t {
    width: 13px;
  }
  .-e {
    width: 11px;
  }
  .hero {
    background: linear-gradient(180deg, #000 0, #000 50%, transparent 50%, transparent 100%);
  }
  .hero__inner {
    padding-top: 20.066vw;
  }
  .hero::after {
    height: 50%;
  }
  .hero__lead {
    position: unset;
    transform: unset;
    margin: 0 auto;
    text-align: center;
  }
  .hero__lead .js-hero-lg {
    font-size: 9.266vw;
    margin-bottom: 0.812rem;
  }
  .hero__lead .js-hero-sm {
    font-size: 2.8vw;
  }
  .hero__container {
    right: 0;
  }
  .hero__bg {
    position: relative;
    width: 100%;
    height: 0;
    padding-top: 80.2666%;
    bottom: 0;
  }
  .hero__bg img {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    object-fit: cover;
  }
  .hero__text {
    padding-right: 3.657vw;
    gap: 21vw;
    padding-bottom: 6vw;
  }
  .hero__num {
    width: 15.866vw;
  }
  .hero__logo {
    width: 24vw;
  }
  .-number {
    font-size: 20.466vw;
    margin-bottom: 0.25rem;
  }
  .-anniversary {
    font-size: 3.452vw;
    margin-bottom: 0.25rem;
  }
  .-date {
    font-size: 3.866vw;
  }
  .hero__copyright {
    font-size: 0.5rem;
    right: 1.125rem;
    letter-spacing: 0.12em;
    white-space: nowrap;
  }
  .message {
    padding-inline: 1.25rem 1rem;
  }
  .message::after {
    height: 42.937vw;
  }
  .message.scroll {
    padding-top: 80px;
    margin-top: -80px;
  }
  .message__inner {
    padding-block: 0 50.937vw;
  }
  .message__lead {
    font-size: 6.4vw;
  }
  .message__text {
    font-size: 3.1vw;
  }
  .message__text span {
    display: block;
  }
  .present {
    padding-top: 20.533vw;
  }
  .loop {
    top: -5vw;
  }
  .loop__text {
    font-size: 10vw;
  }
  .present__header {
    position: relative;
    padding-left: 1rem;
    z-index: 3;
  }
  .present__header.scroll {
    padding-top: 48px;
    margin-top: -48px;
  }
  .present__title {
    margin-bottom: 1.937rem;
  }
  .present__title .en:nth-of-type(1) {
    font-size: 5.8666vw;
  }
  .present__title .en:nth-of-type(2) {
    font-size: 14vw;
    margin-top: 5px;
    margin-bottom: 0.768rem;
  }
  .present__title .ja {
    font-size: 3.2vw;
  }
  .present__image .water:nth-of-type(1) {
    width: 90vw;
    left: auto;
    right: -7.77rem;
    top: -10rem;
    z-index: 1;
  }
  .present__image .water:nth-of-type(2) {
    width: 20vw;
    top: auto;
    bottom: -5rem;
    z-index: 4;
    right: auto;
    left: 15rem;
  }
  .present__image .note {
    max-width: none;
    width: 90.333vw;
    left: 1rem;
    top: -0.765rem;
    z-index: 2;
  }
  .present__inner {
    align-items: flex-start;
    margin-top: 8.899vw;
  }
  .present__text {
    padding-top: 10.652vw;
    left: 1.25rem;
    z-index: -1;
  }
  .present__lead {
    margin-bottom: 1rem;
    font-size: 10vw;
  }
  .present__detail {
    font-size: 2.8vw;
  }
  .present__bg {
    width: 42.6666vw;
    padding-top: 104.488%;
  }
  .present__bg img {
    object-fit: cover;
    object-position: left;
  }
  .corporate {
    padding-inline: 1.25rem;
    margin-top: 31.988vw;
  }
  .corporate__link {
    width: 100%;
    margin-top: 5vw;
  }
  .footer {
    padding-block: 35vw 7vw;
  }
}
@media (max-width: 560px) {
  .hero__lead {
    margin-left: 5.866vw;
  }
  .hero__lead .js-hero-lg {
    font-size: 12.266vw;
  }
  .hero__lead .js-hero-sm {
    font-size: 4.8vw;
  }
  .hero__bg {
    width: 120vw;
    left: 50%;
    transform: translateX(-50%);
  }
  .hero__bg img {
    height: auto;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }
  .hero__text {
    gap: 31vw;
  }
  .hero__num {
    width: 21.866vw;
  }
}
@media (min-width: 769px) and (max-width: 1330px) {
  .hero__copyright {
    font-size: 0.972vw;
    right: 1.5rem;
  }
  .hero__lead {
    left: 4.25rem;
  }
  .hero__lead .js-hero-lg {
    font-size: 5.347vw;
  }
  .hero__lead .js-hero-sm {
    font-size: 2.083vw;
  }
  .hero__num {
    width: 12.152vw;
  }
  .-number {
    font-size: 12.222vw;
  }
  .-anniversary {
    font-size: 1.806vw;
  }
  .-date {
    font-size: 2.083vw;
  }
}