@charset "UTF-8";
:root {
  --windowh: 100vh;
}

@font-face {
  font-family: "sm";
  src: url("./ShipporiMinchoB1-Regular.woff2") format("woff");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "sm";
  src: url("./ShipporiMinchoB1-Medium.woff2") format("woff");
  font-weight: 500;
  font-display: swap;
}
section {
  position: relative;
  z-index: 5;
}

.h_top {
  font-size: 1.9rem;
}

main {
  background: #fff;
}

header.black .logo img {
  filter: drop-shadow(0 0 1rem white);
}

/*--------------------------------------------------------------
mv
--------------------------------------------------------------*/
#mv {
  pointer-events: none;
  width: 100%;
  height: 100vh;
  position: fixed;
  z-index: 5;
  top: 0;
  left: 0;
}
#mv #mv_still {
  background: #000;
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
#mv #mv_still img {
  opacity: 0;
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
  transition: opacity 0.3s ease;
}
#mv.videooff #video {
  display: none;
}
#mv.videooff #mv_still {
  opacity: 1;
}
#mv.videooff.on #mv_still img {
  opacity: 1;
}
#mv #video {
  width: 100%;
  height: auto;
  aspect-ratio: 16/9;
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1;
}
@media (max-aspect-ratio: 16/9) {
  #mv #video {
    width: auto;
    height: 100%;
  }
}
#mv .mvheading {
  position: relative;
  z-index: 3;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}
#mv .mvheading:not(.on) h2 {
  opacity: 0;
  transform: scale(1.1);
  filter: blur(10px);
}
#mv .mvheading h2 {
  transition: opacity 0.5s ease-in-out, filter 1s ease-in-out, transform 1.5s ease-in-out;
  font-size: 5rem;
  font-weight: 400;
  font-family: "sm", "游明朝体", "Yu Mincho", YuMincho, "ヒラギノ明朝 Pro", "Hiragino Mincho Pro", "MS P明朝", "MS PMincho", serif;
  letter-spacing: 0.2em;
  color: transparent;
  /* 2つのグラデーションを重ね合わせ */
  background-image: radial-gradient(circle 300px at center, rgba(255, 255, 255, 0.5) 0%, rgba(255, 255, 255, 0) 70%), radial-gradient(circle 400px at center, rgb(255, 255, 255) 0%, rgba(255, 255, 255, 0.5) 100%);
  background-size: 200% 200%, 250% 250%;
  background-repeat: no-repeat;
  -webkit-background-clip: text;
  background-clip: text;
  /* 周期の違う2つのアニメーションを同時適用 */
  animation: searchlight1 12s ease-in-out infinite alternate, searchlight2 8s ease-in-out infinite alternate;
}
@media screen and (max-width: 767px) {
  #mv {
    width: 100vw;
    height: 100vh;
    height: 100lvh;
    overflow: hidden;
  }
  #mv #video {
    width: 100%;
    height: auto;
    aspect-ratio: 16/9;
    position: absolute;
    z-index: 2;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
  }
}
@media screen and (max-width: 767px) and (max-aspect-ratio: 16/9) {
  #mv #video {
    width: auto;
    height: 100%;
  }
}
@media screen and (max-width: 767px) {
  #mv .mvheading h2 {
    font-size: min(5rem, 10vw);
  }
}

/* 主な光の移動 */
@keyframes searchlight1 {
  0% {
    background-position: 0% 20%, 100% 80%;
  }
  50% {
    background-position: 100% 80%, 0% 20%;
  }
  100% {
    background-position: 20% 100%, 80% 0%;
  }
}
/* 補正光の移動（周期をずらして絶え間ない変化を作る） */
@keyframes searchlight2 {
  0% {
    background-position: 80% 0%, 20% 100%;
  }
  50% {
    background-position: 10% 90%, 90% 10%;
  }
  100% {
    background-position: 90% 30%, 10% 70%;
  }
}
/*--------------------------------------------------------------
lead
--------------------------------------------------------------*/
#lead {
  pointer-events: none;
  top: 0;
  left: 0;
  width: 100%;
  overflow: clip;
}
#lead .bg {
  position: fixed;
  top: 0;
  left: 0;
  z-index: -1;
  width: 100%;
  height: 100vh;
  height: 100lvh;
  background: #000141;
  opacity: 0;
}
#lead .bg::before {
  content: "";
  background: url(../images/common/paper.jpg);
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  mix-blend-mode: screen;
  opacity: 0.7;
  z-index: 5;
}
#lead .bg .ball {
  position: absolute;
  width: 20%;
  aspect-ratio: 1/1;
  mix-blend-mode: lighten;
  /* 明滅アニメーションを適用 */
  animation: ballPulse 8s ease-in-out infinite alternate;
}
#lead .bg .ball img {
  width: 100%;
}
#lead .bg .ball.ball1 {
  width: 90%;
  left: -20%;
  top: calc(50% - 30vh);
  animation-duration: 14s;
  animation-delay: 0s;
}
#lead .bg .ball.ball2 {
  width: 55%;
  right: 0%;
  top: -60%;
  animation-duration: 20s;
  animation-delay: -3s;
}
#lead .bg .ball.ball3 {
  width: 30%;
  right: 0%;
  bottom: -25%;
  animation-duration: 15s;
  animation-delay: -6s;
}
#lead .inner {
  color: #fff;
  padding-top: 150vh;
  padding-bottom: 100vh;
  padding-bottom: 100lvh;
}
#lead .inner .leadtxt {
  will-change: transform;
  text-align: center;
  text-shadow: 0 0 1rem rgba(0, 0, 0, 0.5);
  padding-bottom: 30rem;
}
#lead .inner .leadtxt h2 {
  font-size: 4rem;
  letter-spacing: 0.2em;
  font-weight: 400;
}
#lead .inner .leadtxt p {
  margin-top: 8em;
  font-size: 2rem;
  line-height: 4;
}
#lead .inner .leadtxt p span {
  display: inline-block;
}
@media screen and (max-width: 767px) {
  #lead .bg .ball {
    position: absolute;
    width: 20%;
    aspect-ratio: 1/1;
    mix-blend-mode: lighten;
    animation: ballPulse 8s ease-in-out infinite alternate;
  }
  #lead .bg .ball img {
    width: 100%;
  }
  #lead .bg .ball.ball1 {
    width: 130%;
    left: -75%;
    top: 25%;
    animation-duration: 14s;
    animation-delay: 0s;
  }
  #lead .bg .ball.ball2 {
    width: 70%;
    right: -20%;
    top: 5%;
    animation-duration: 20s;
    animation-delay: -3s;
  }
  #lead .bg .ball.ball3 {
    width: 50%;
    right: 5%;
    bottom: -5%;
    animation-duration: 15s;
    animation-delay: -6s;
  }
  #lead .inner {
    padding-top: 140vh;
    padding-bottom: 100vh;
  }
  #lead .inner .leadtxt {
    text-shadow: 0 0 1rem rgba(0, 0, 0, 0.5);
    padding-bottom: 30rem;
  }
  #lead .inner .leadtxt h2 {
    font-size: min(4rem, 8vw);
    line-height: 1.8;
    letter-spacing: 0.2em;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
  }
  #lead .inner .leadtxt p {
    margin-top: 8em;
    font-size: 2rem;
    line-height: 3;
    font-size: min(1.6rem, 4vw);
  }
}

@keyframes ballPulse {
  0% {
    opacity: 0.2;
    transform: scale(0.85);
  }
  50% {
    opacity: 0.9;
    transform: scale(1.02);
  }
  100% {
    opacity: 0.3;
    transform: scale(0.95);
  }
} /*--------------------------------------------------------------
product
--------------------------------------------------------------*/
#product {
  min-height: 100vh;
  margin-top: -80vh;
  z-index: 4;
  padding: calc(50vh - 40rem) 0;
  padding: 0;
  overflow: clip;
}
#product .wrapper {
  display: flex;
}
#product .wrapper div.scene {
  width: 50%;
  height: 100vh;
  position: sticky;
  top: 0;
}
#product .wrapper div.scene figure {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
#product .wrapper div.scene figure:not(.current) {
  pointer-events: none;
}
#product .wrapper div.scene figure:not(.current) img {
  opacity: 1;
  filter: none;
}
#product .wrapper div.scene figure:not(.current) figcaption {
  opacity: 0;
}
#product .wrapper div.scene figure img {
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
  will-change: -webkit-mask-image, mask-image;
}
#product .wrapper div.scene figure figcaption {
  transition: opacity 0.8s ease-in-out;
  position: absolute;
  bottom: 2rem;
  left: 2rem;
  color: #fff;
  font-size: 1.6rem;
}
#product .wrapper .slider {
  width: 50%;
  padding-left: calc(50vw - 12rem);
  padding-left: 0;
  padding-top: 50vh;
  padding-bottom: 250vh;
}
#product .wrapper .slider h2 {
  height: 5rem;
  top: 3rem;
  z-index: 5;
  padding-left: 3rem;
}
#product .wrapper .slider .slide_item {
  /* 高さを持たせることで sticky の可動域を作る */
  height: 100rem;
  width: 100%;
}
#product .wrapper .slider .slide {
  position: sticky;
  top: calc(50vh - 35rem);
  margin-top: 20rem;
  width: 100%;
  height: 70rem;
  display: flex;
  justify-content: center;
  align-items: center;
}
#product .wrapper .slider .slide a {
  display: flex;
  transition: background 0.25s ease-in-out, box-shadow 0.25s ease-in-out;
  width: 40rem;
  padding: 5rem 5rem 5rem;
  border-radius: 1.8rem;
}
#product .wrapper .slider .slide a:hover {
  background: #fff;
  box-shadow: 0 0 2rem rgba(0, 0, 0, 0.03);
}
#product .wrapper .slider .slide .txt {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  will-change: transform;
}
#product .wrapper .slider .slide .txt .item {
  height: 42rem;
  max-height: 60vh;
  margin: 0;
}
#product .wrapper .slider .slide .txt .item img {
  height: 100%;
  width: auto;
}
#product .wrapper .slider .slide .txt .name {
  font-size: 3rem;
  margin: min(4rem, 2vh) 0 0;
}
#product .wrapper .slider .slide .txt .name img {
  height: 3.6rem;
  max-height: 5vh;
}
#product .wrapper .slider .slide .txt p {
  margin-top: min(1.5em, 2vh);
  text-align: center;
}
@media screen and (max-width: 767px) {
  #product {
    min-height: 100lvh;
    margin-top: -80vh;
    padding: calc(50vh - 40rem) 0;
  }
  #product .wrapper {
    display: flex;
  }
  #product .wrapper div.scene {
    width: 40%;
    height: 100%;
  }
  #product .wrapper div.scene figure {
    height: 100lvh;
  }
  #product .wrapper .slider {
    width: 60%;
    padding: 4rem 5vw 250vh;
  }
  #product .wrapper .slider h2 {
    height: 5rem;
    top: 3rem;
    z-index: 5;
    padding-left: 3rem;
    font-size: 1.6rem;
  }
  #product .wrapper .slider .slide {
    width: 100%;
    height: 70rem;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  #product .wrapper .slider .slide a {
    width: 100%;
    padding: 0;
  }
  #product .wrapper .slider .slide a:hover {
    background: unset;
  }
  #product .wrapper .slider .slide .txt .item {
    height: 42rem;
    max-height: 60vh;
  }
  #product .wrapper .slider .slide .txt .name {
    margin: min(4rem, 2vh) 0 0;
  }
  #product .wrapper .slider .slide .txt .name img {
    height: 2.4rem;
    max-height: 5vh;
    max-height: unset;
  }
  #product .wrapper .slider .slide .txt p {
    margin-top: min(1.5em, 2vh);
    text-align: center;
  }
}

/*--------------------------------------------------------------
commitment
--------------------------------------------------------------*/
#commitment {
  pointer-events: none;
  padding: 0;
  margin-top: -300vh;
  padding-top: 90vh;
  padding-bottom: 10rem;
}
#commitment .bg {
  width: 100%;
  height: 100vh;
  height: 100lvh;
  background: #000141;
  z-index: 1;
  position: fixed;
  top: 0;
  left: 0;
  opacity: 0;
  will-change: opacity;
  pointer-events: none;
  display: flex;
  justify-content: center;
  align-items: center;
}
#commitment .inner {
  z-index: 2;
  position: relative;
  padding-top: 50vh;
}
#commitment .catch {
  text-align: center;
  color: #fff;
  width: 100%;
  font-size: 3.2rem;
  position: sticky;
  top: 10rem;
  padding-bottom: min(75vh, 56rem);
  margin-bottom: max(-75vh, -56rem);
  z-index: 3;
}
#commitment .middle {
  position: relative;
}
#commitment .slide_wrapper {
  width: min(132rem, 90vw);
  margin: 50rem auto auto;
  padding-bottom: max((50vh - 32rem) * 1, 10vh);
}
#commitment .slide_wrapper::after {
  content: "";
  display: block;
  height: 50vh;
}
#commitment .slide_wrapper .slide + .slide {
  margin-top: max((50vh - 32rem) * 1.5, 15vh);
}
#commitment .slide_wrapper .slide {
  background: #fff;
  position: sticky;
  top: max(50vh - 32rem + 2rem, 10vh + 2rem);
  height: min(80vh, 64rem);
  width: 100%;
  display: flex;
  will-change: transform, opacity;
}
#commitment .slide_wrapper .slide {
  display: flex;
}
#commitment .slide_wrapper .slide figure {
  order: 2;
  width: 50%;
  overflow: hidden;
  height: 100%;
  background: #000;
}
#commitment .slide_wrapper .slide figure img {
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
}
#commitment .slide_wrapper .slide .txt {
  width: 50%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
  padding: 4% 6rem;
}
#commitment .slide_wrapper .slide .txt .en {
  font-family: "EB Garamond", serif;
  font-size: 12rem;
  letter-spacing: 0;
  font-weight: 200;
  margin: 0;
  line-height: 1;
  letter-spacing: 0.05em;
}
#commitment .slide_wrapper .slide .txt .heading {
  margin: 1.5em 0 0;
  font-size: 3rem;
}
#commitment .slide_wrapper .slide .txt .body {
  margin: 3em 0 0;
  margin: 0;
  font-size: 1.6rem;
}
#commitment .slide_wrapper .slide .txt .link {
  margin: 0;
  margin-top: 3rem;
}
#commitment .slide_wrapper .slide .txt .more {
  width: 25rem;
  height: 4rem;
  display: inline-flex;
  justify-content: space-between;
  align-items: center;
  color: #000;
  font-size: 1.8rem;
  padding-right: 0.2em;
  position: relative;
  pointer-events: auto;
}
#commitment .slide_wrapper .slide .txt .more span {
  line-height: 1.1;
}
#commitment .slide_wrapper .slide .txt .more::before {
  content: "";
  display: block;
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: #000;
  transform-origin: left top;
  transition: transform 0.25s ease-in-out;
}
#commitment .slide_wrapper .slide .txt .more::after {
  content: "▶";
  font-size: 50%;
}
#commitment .slide_wrapper .slide .txt .more:hover::before {
  transform-origin: right top;
  transform: scaleX(0);
}
@media screen and (max-width: 767px) {
  #commitment {
    padding: 0;
    margin-top: -300vh;
    padding-top: 90vh;
    padding-bottom: 10rem;
  }
  #commitment .inner {
    z-index: 2;
    position: relative;
    padding-top: 50vh;
  }
  #commitment .catch {
    font-size: min(2.4rem, 8vw);
    line-height: 1.8;
    position: sticky;
    top: 10rem;
    padding-bottom: min(75vh, 56rem);
    margin-bottom: max(-75vh, -56rem);
    z-index: 3;
  }
  #commitment .slide_wrapper {
    width: auto;
    margin: 50rem auto auto;
    padding-bottom: max((50vh - 32rem) * 1, 10vh);
  }
  #commitment .slide_wrapper::after {
    content: "";
    display: block;
    height: 50vh;
  }
  #commitment .slide_wrapper .slide + .slide {
    margin-top: max((50vh - 32rem) * 1.5, 15vh);
  }
  #commitment .slide_wrapper .slide {
    background: #fff;
    position: sticky;
    top: 10vh;
    height: 85dvh;
    flex-direction: column;
    display: flex;
  }
  #commitment .slide_wrapper .slide figure {
    order: unset;
    width: 100%;
    height: 50%;
  }
  #commitment .slide_wrapper .slide .txt {
    width: 100%;
    height: 50%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    padding: 5vw 5vw 6vw;
  }
  #commitment .slide_wrapper .slide .txt .en {
    font-size: 2.1rem;
  }
  #commitment .slide_wrapper .slide .txt .heading {
    margin: 0.1em 0 0;
    font-size: min(2.8rem, 6.5vw);
    letter-spacing: 0;
  }
  #commitment .slide_wrapper .slide .txt .body {
    margin: 1em 0 0;
    font-size: 1.6rem;
  }
  #commitment .slide_wrapper .slide .txt .link {
    margin: 0;
    margin-top: 2rem;
  }
  #commitment .slide_wrapper .slide .txt .more {
    width: 20rem;
    height: 4rem;
    font-size: 1.4rem;
    padding-right: 0.2em;
    position: relative;
  }
  #commitment .slide_wrapper .slide .txt .more span {
    line-height: 1.1;
  }
  #commitment .slide_wrapper .slide .txt .more::after {
    content: "▶";
    font-size: 50%;
  }
  #commitment .slide_wrapper .slide .txt .more:hover::before {
    transform-origin: right top;
    transform: scaleX(0);
  }
}

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