@charset "UTF-8";

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  overflow-x: hidden;
}

body {
  font-family: "Noto Serif JP , serif";
  background-color: #000;
}

.curtain {
  position: fixed;
  left: 0;
  width: 100%;
  height: 50vh;
  background-color: #000;
  z-index: 25;
  pointer-events: none;
}

.curtain-top {
  top: 0;
  transform: translateY(0);
  transition: transform 1s cubic-bezier(0.7, 0, 0.3, 1);
}

.curtain-bottom {
  bottom: 0;
  transform: translateY(0);
  transition: transform 1s cubic-bezier(0.7, 0, 0.3, 1);
}

.curtain-top.open {
  transform: translateY(-100%);
}

.curtain-bottom.open {
  transform: translateY(100%);
}

.section-images {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  background-color: #000;
  z-index: 30;
  transition: opacity 0.8s ease-out;
}

.section-images.fade-out {
  opacity: 0;
  pointer-events: none;
}

.section-images-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 80px;
  width: 100%;
  padding: 0 20px;
  margin-top: 25vh;
}

@media screen and (max-width: 768px) {
  .section-images-inner {
    /* margin-top: 20vh; */
    gap: 40px;
  }
}

.image-item {
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.image-item img {
  display: block;
  max-width: 240px;
  height: auto;
  margin: auto;
}

@media screen and (max-width: 768px) {
  .image-item img {
    max-width: 180px;
  }
}

.mainvisual-date {
  font-family: "EB Garamond", serif;
  font-size: 50px;
  color: #fff;
  letter-spacing: 0.1em;
  text-align: center;
  margin-bottom: 32px;
  line-height: 1;
}

@media screen and (max-width: 768px) {
  .mainvisual-date {
    font-size: 24px;
    margin-bottom: 16px;
  }
}

.mainvisual-text {
  font-family: "EB Garamond", serif;
  font-size: 64px;
  text-align: center;
  line-height: 1.5;
  color: #fff;
  letter-spacing: 0.1em;
}
@media screen and (max-width: 768px) {
  .mainvisual-text {
    font-size: 32px;
  }
}

.scroll {
  position: absolute;
  right: 50%;
  bottom: 16%;
  color: #fff;
  font-size: 14px;
  font-family: "DIN 2014";
  letter-spacing: 0.2em;
  transform: translateX(50%);
}

@media screen and (max-width: 768px) {
  .scroll {
    bottom: 8%;
  }
}

.scroll::before {
  animation: scroll 2s infinite;
  background-color: #fff;
  bottom: -90px;
  content: "";
  height: 75px;
  left: 0;
  margin: auto;
  position: absolute;
  right: 0;
  width: 1px;
}

@media screen and (max-width: 768px) {
  .scroll::before {
    bottom: -40px;
    height: 35px;
  }
}

@keyframes scroll {
  0% {
    transform: scale(1, 0);
    transform-origin: 0 0;
  }
  50% {
    transform: scale(1, 1);
    transform-origin: 0 0;
  }
  51% {
    transform: scale(1, 1);
    transform-origin: 0 100%;
  }
  100% {
    transform: scale(1, 0);
    transform-origin: 0 100%;
  }
}

.scroll-spacer {
  height: 1000px;
  width: 100%;
  background-color: #000;
}

.section-video {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #000;
  /* z-index: 20; */
  opacity: 0;
  transition: opacity 0.8s ease-out;
}

.section-video.visible {
  opacity: 1;
}

.section-video.fade-out {
  opacity: 0;
}

.section-video-inner {
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.section-video-inner video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.volume-btn {
  position: fixed;
  left: 15px;
  bottom: 15px;
  z-index: 50;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.volume-btn img {
  width: 50px;
  height: 50px;
  display: block;
}

.volume-btn .volume-off {
  display: none;
}

.volume-btn.muted .volume-on {
  display: none;
}

.volume-btn.muted .volume-off {
  display: block;
}

.section-content {
  position: relative;
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #000;
  opacity: 0;
  transition: opacity 0.8s ease-out;
}

.section-content.visible {
  opacity: 1;
}

.section-content-inner {
  position: relative;
  width: 100%;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.section-content-inner video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.section-content-inner img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.pc-only {
  display: block;
}

.sp-only {
  display: none;
}

@media screen and (max-width: 768px) {
  .pc-only {
    display: none;
  }

  .sp-only {
    display: block;
  }
}

.mod-topicPath {
  position: relative;
  z-index: 99;
}

@media screen and (max-width: 768px) {
  .mod-topicPath {
    top: 60px;
  }
}