:root {
  --brown: #9d6931;
  --brown-dark: #5b3516;
  --blue: #21496b;
  --paper: #efe0c5;
  --ink: #17120d;
  --white: #fffdf8;
  --accordion-bg: url("../img/accordion-bg.svg");
  --accordion-bg-active: url("../img/accordion-bg-active.svg");
  --accordion-open-bg: linear-gradient(180deg, rgba(255,255,255,.66), rgba(246,232,205,.9));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: #65070c;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Zen Kaku Gothic New", system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.9;
  background: #65070c;
  animation: page-fade-in 1.72s ease-out both;
}

@keyframes page-fade-in {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  body {
    animation: none;
  }
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.mincho {
  font-family: "Zen Old Mincho", serif;
}

.site-shell {
  min-height: 100svh;
}

.pc-side {
  display: none;
}

.center-scroll {
  min-height: 100svh;
  background: #e6d0aa url("../img/bg-sp.png") repeat-y center top / 100% auto;
  overflow-x: hidden;
  position: relative;
}

.hero {
  margin-bottom: 12vw;
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  background: #170706 url("../img/kv-sp.png") center top / cover no-repeat;
}

.hero::after {
  content: "";
  display: none;
  position: absolute;
  inset: auto 0 0;
  height: 22%;
  background: linear-gradient(0deg, rgba(0,0,0,.42), transparent);
  pointer-events: none;
}

.menu-toggle {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 80;
  width: 72px;
  height: 72px;
  border: 0;
  color: #fff;
  background: var(--brown);
  cursor: pointer;
  display: grid;
  place-items: center;
  box-shadow: 0 6px 18px rgba(0,0,0,.18);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .28s ease, visibility .28s ease;
}

.menu-toggle:focus {
  outline: none;
}

.menu-toggle:focus-visible {
  box-shadow: 0 0 0 2px rgba(255,255,255,.85), 0 6px 18px rgba(0,0,0,.18);
}

.menu-toggle img {
  margin-top: 2px;
  width: 46px;
}

.menu-toggle::before,
.menu-toggle::after {
  content: "";
  position: absolute;
  top: 35px;
  left: 15px;
  width: 42px;
  height: 2px;
  background: #fff;
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
}

.menu-open .menu-toggle img,
.menu-toggle[aria-expanded="true"] img {
  display: none;
}

.menu-open .menu-toggle::before,
.menu-toggle[aria-expanded="true"]::before {
  opacity: 1;
  transform: rotate(45deg);
}

.menu-open .menu-toggle::after,
.menu-toggle[aria-expanded="true"]::after {
  opacity: 1;
  transform: rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 70;
  display: grid;
  align-content: start;
  gap: 26px;
  padding: 33vh 34px 40px;
  background: transparent;
  transform: translateX(100%);
  transition: transform .34s ease;
  isolation: isolate;
}

.mobile-menu::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(180deg, rgba(157,105,49,.1), rgba(157,105,49,.46)),
    url("../img/sp-menu-bg.png") center top / cover no-repeat;
  opacity: .9;
  pointer-events: none;
}

.menu-open .mobile-menu {
  transform: translateX(0);
}

.mobile-menu nav {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 12px;
  justify-items: start;
  max-width: 290px;
  margin: 0 auto;
}

.mobile-menu nav img {
  max-height: 37px;
  width: auto;
}

.floating-sns {
  position: fixed;
  right: 0;
  top: 50svh;
  z-index: 60;
  display: grid;
  gap: 8px;
  transform: translateY(-50%);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .28s ease, visibility .28s ease;
}

.floating-sns a {
  width: 52px;
  min-height: 50px;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 18px rgba(0,0,0,.28);
  border-radius: 3px 0 0 3px;
  opacity: .9;
}

.floating-sns .line {
  background: #06c755;
}

.floating-sns .x {
  background: #050505;
}

.floating-sns img {
  width: 140%;
  max-width: 140%;
  height:120%;
  object-fit: contain;
  margin-right: -10px;
}

.paper-content {
  position: relative;
  z-index: 2;
  padding: 0 13px /*calc(74px + env(safe-area-inset-bottom))*/;
}

.buy-anchor {
  width: 100%;
  min-width: 100%;
  aspect-ratio: 538.56 / 67.6;
  min-height: 0;
  margin: 0;
  position: fixed;
  left: 50%;
  bottom: max(10px, env(safe-area-inset-bottom));
  z-index: 65;
  display: grid;
  place-items: center;
  color: #fff;
  font-family: "Zen Old Mincho", serif;
  font-size: clamp(22px, 7vw, 34px);
  font-weight: 900;
  line-height: 1.1;
  text-align: center;
  background: url("../img/buy-kit-button-bg.png") center / contain no-repeat;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  transform: translateX(-50%);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .28s ease, visibility .28s ease;
}

.fixed-ui-visible .menu-toggle,
.fixed-ui-visible .floating-sns,
.fixed-ui-visible .buy-anchor,
.menu-open .menu-toggle,
.menu-open .floating-sns,
.menu-open .buy-anchor {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.decor-line {
  width: min(76%, 380px);
  height: 28px;
  margin: 0 auto 42px;
  background: url("../img/line-intro.svg") center / contain no-repeat;
}

.lead {
  margin: 0 auto 42px;
  max-width: 620px;
  text-align: center;
  font-family: "Zen Old Mincho", serif;
  font-size: clamp(21px, 5.8vw, 36px);
  font-weight: 900;
  line-height: 2;
  letter-spacing: 0;
}

.coupon {
  width: min(100%, 520px);
  margin: 0 -10px 38px 0;
  //filter: drop-shadow(0 8px 8px rgba(63,37,12,.25));
}

.section {
  width: min(100%, 690px);
  margin: 0 auto;
  padding: 0 10px 48px;
}

.section-title {
  width: 100%;
  min-width: 100%;
  margin: 0 auto 34px;
}

.section p {
  margin: 0 auto 28px;
  text-align: center;
  font-size: clamp(17px, 4.5vw, 28px);
  line-height: 2;
  font-weight: 500;
}

.story-copy p {
  max-width: 620px;
  font-size: clamp(17px, 4.5vw, 28px);
  line-height: 2.15;
  font-weight: 500;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 30px 22px;
  margin: 34px auto 64px;
  max-width: 620px;
}

.feature {
  text-align: center;
}

.feature img {
  width: 100%;
  margin: 0 auto 12px;
}

.feature b {
  display: block;
  color: var(--brown);
  font-family: "Zen Old Mincho", serif;
  font-size: clamp(18px, 5vw, 26px);
  line-height: 1.35;
}

.feature span {
  display: block;
  font-size: clamp(14px, 4vw, 22px);
  line-height: 1.6;
  font-weight: 500;
}

.notice-card {
  max-width: 650px;
  margin: 0 auto 24px;
  padding: 22px 24px 28px;
  background: #fff;
  color: #0b0b0b;
  position: relative;
}
.notice-card::before{
  content: '';
  display: block;
  background: url("../img/ico-notice.png") center / cover no-repeat;
  position: absolute;
  left: 0;
  top: -3px;
  width: 60px;
  height: 60px;
}

.notice-card img{
  width: 100%;
  min-width: 100%;
}

.notice-card h3 {
  margin: 4px 0 34px;
  text-align: center;
  font-size: clamp(24px, 6.7vw, 38px);
  line-height: 1.35;
  font-weight: 700;
}

.notice-card p {
  margin-top: 0.7em;
  margin-bottom: 0;
  font-size: clamp(16px, 3.6vw, 21px);
  line-height: 1.6;
  text-align: left;
  font-weight: 500;
}

.notice-card p.notice-subttl{
  margin-top: 1.4em;
  text-align: center;
  font-weight: 600;
  font-size: clamp(18px, 4.6vw, 26px);
  line-height: 1.6;
}

.slider-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
}

.slider-wrapper {
  width: 82%;
  overflow: hidden;
}

.how-steps {
  display: flex;
  transition: transform 0.3s ease-in-out;
  width: 100%;
  margin: 0;
  gap: 0;
}

.how-steps > * {
  flex: 0 0 100%;
  width: 100%;
}

.how-steps img {
  width: 100%;
  filter: drop-shadow(0 3px 4px rgba(91,53,22,.18));
}

.how-slide {
  position: relative;
}

.slide-hotspot {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1;
  height: 20%;
}

.slider-btn {
  width: 8%;
  min-height: 74px;
  background: center / 24px auto no-repeat;
  border: none;
  color: transparent;
  cursor: pointer;
  display: grid;
  place-items: center;
  user-select: none;
  padding: 0;
  overflow: hidden;
  text-indent: -999px;
}

.slider-btn.prev {
  background-image: url("../img/slider-prev.png");
  margin-left: -6px;
}

.slider-btn.next {
  background-image: url("../img/slider-next.png");
  margin-right: -6px;
}

.slider-btn:focus {
  outline: none;
}

.kit-banner {
  width: min(100%, 600px);
  margin: 0 auto 10px;
  border-radius: 8px;
  overflow: hidden;
}

.section p.kit-note {
  margin: -0.2em auto 48px;
  max-width: 650px;
  font-size: clamp(14px, 3.4vw, 20px);
  font-weight: 300;
  text-align: center;
}

.price-block {
  width: min(100%, 650px);
  margin: 0 auto 48px;
  color: var(--brown);
}

.price-row {
  display: flex;
  align-items: baseline;
  justify-content: flex-start;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 2px solid rgba(157,105,49,.55);
  font-family: "Zen Old Mincho", serif;
  font-size: clamp(24px, 6.4vw, 42px);
  font-weight: 900;
  line-height: 1.25;
}
.price-row span+span{
  margin-left: 0.6em;
}
.price-row span:first-child{
  padding-left: 54px;
  position: relative;
}
.price-row span:first-child::before {
  
  content: '';
  display: block;
  background: url("../img/icon.svg") center / cover no-repeat;
  position: absolute;
  left: 0;
  top: -6px;
  width: 45px;
  height: 45px;
}

.escape-button {
  display: block;
  width: min(100%, 560px);
  margin: 12px 0 0;
}
.escape-button img{
  max-width: calc(100% + 8px);
  width: calc(100% + 8px);
  margin-right: -8px;
}

p.escape-text{
  margin: 1em 0 -0.6em;
  color: #000;
  text-align: left;
  font-weight: 600;
}

.ribbon {
  display: inline-block;
  margin: 22px 0 24px -14px;
  padding: 8px 38px 9px 16px;
  color: #fff;
  background: var(--brown);
  clip-path: polygon(0 0, 100% 0, calc(100% - 18px) 50%, 100% 100%, 0 100%);
  font-size: clamp(21px, 5.8vw, 34px);
  letter-spacing: 0;
  font-weight: 700;
  line-height: 1.1;
}

.shop-list {
  display: grid;
  gap: 32px;
  max-width: 650px;
  margin: 0 auto;
  font-size: clamp(16px, 4.4vw, 24px);
  line-height: 1.85;
  font-weight: 500;
}

.shop-list h4 {
  margin: 0 0 8px;
  color: var(--brown);
  font-size: clamp(18px, 4.6vw, 31px);
  line-height: 1.35;
  font-weight: 700;
}

.shop-list h4::before {
  content: "●";
  margin-right: .1em;
}

.shop-list h5 {
  min-height: clamp(58px, 13vw, 84px);
  margin: 2px 0 0;
  padding: .45em .7em;
  display: grid;
  place-items: center;
  color: var(--brown);
  border: 1px solid currentColor;
  font-size: clamp(18px, 4.4vw, 26px);
  line-height: 1.35;
  font-weight: 600;
  text-align: center;
}

.shop-list p,
.shop-hours {
  margin: 0;
  color: #000;
  text-align: left;
  font-size: inherit;
  line-height: 1.85;
  font-weight: 400;
}

.shop-hours {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: clamp(14px, 4vw, 30px);
  align-items: start;
  font-weight: 400;
}

.shop-hours dt,
.shop-hours dd {
  margin: 0;
}

.shop-hours dt {
  white-space: nowrap;
}

.shop-schedule {
  display: grid;
  grid-template-columns: 4.1em auto;
  column-gap: clamp(10px, 3vw, 24px);
  row-gap: .18em;
}
.shop-day{
  text-align: right;
}
.shop-day,
.shop-time {
  white-space: nowrap;
}

.shop-list .shop-note,
.shop-list .shop-address {
  margin-top: .25em;
}
p.shop-note{
  font-size: clamp(18px, 3.8vw, 28px);
  font-weight: 400;
  padding-top: 0.3em;
}
.overview-list {
  max-width: 660px;
  margin: 0 auto 36px;
  color: var(--brown);
  font-size: clamp(18px, 4.6vw, 28px);
  line-height: 1.7;
  font-weight: 700;
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: .7em;
  row-gap: 14px;
}

.overview-list dt {
  margin: 0;
}

.overview-list dt::before {
  content: "■";
  margin-right: .2em;
}

.overview-list dd {
  font-size: clamp(18px, 4.1vw, 28px);
  margin: 0;
  color: var(--brown);
  font-weight: 700;
}
span.blk{
  font-weight: 400;
  color: var(--ink);
  font-size: clamp(16px, 3.6vw, 24px);
}

.overview-venue {
  display: grid;
  gap: .1em;
}

.overview-access{
  display: inline-block;
  margin-left: 6px;
  margin-bottom: -4px;
}
.overview-access img{
  width: 80px;
  min-width: 70px;
  max-width: 90px;
  height: auto;
}

.overview-logo {
  width: min(82%, 520px);
  margin: 0 auto 48px;
  padding: 22px;
  background: #fff;
}

.accordions {
  display: grid;
  gap: 20px;
  max-width: 660px;
  margin: 0 auto 44px;
}

.accordion {
  border: 0;
}

.accordion summary {
  aspect-ratio: 349 / 52.747;
  min-height: 53px;
  padding: 0 18px 0 18px;
  color: #fff;
  background: var(--accordion-bg) center / 100% 100% no-repeat;
  border: 0;
  outline: 0;
  cursor: pointer;
  list-style: none;
  position: relative;
  display: grid;
  place-items: center;
  font-family: "Zen Old Mincho", serif;
  font-size: clamp(24px, 6.4vw, 26px);
  font-weight: 900;
  line-height: 1.15;
  text-align: center;
}

.accordion[open] summary {
  background-image: var(--accordion-bg-active);
}

.accordion summary::-webkit-details-marker {
  display: none;
}

.accordion summary::after {
  display: none;
}

.accordion[open] summary::after {
  display: none;
}

.accordion-body {
  margin-top: 0;
  padding: 24px 14px 22px;
  background: #fff;
  font-size: clamp(14px, 3.8vw, 18px);
  line-height: 1.7;
  font-weight: 400;
}
.accordion-body p{
  font-size: clamp(14px, 3.8vw, 18px);
  line-height: 1.7;
  font-weight: 400;
}
.accordion-body ul {
  margin: 0;
  padding-left: 1.2em;
}

.sns-section {
  width: min(100%, 650px);
  margin: 0 auto 24px;
  text-align: center;
  color: var(--brown);
  font-size: clamp(20px, 5.5vw, 30px);
  font-weight: 900;
}

.sns-section p{
  color: var(--brown);
  font-size: clamp(16px, 4.8vw, 20px);
  font-weight: 600;
  margin-bottom: 0.2em;
}

.sns-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 12px;
}

.sns-links a {
  min-height: 108px;
  display: grid;
  place-items: center;
  color: #fff;
  border-radius: 5px;
  font-family: "Zen Old Mincho", serif;
  font-size: clamp(17px, 4.4vw, 25px);
  line-height: 1.3;
  text-align: center;
}

.sns-links a img{
  width: 100%;
  height: auto;
}

.sns-links .line {
  background: #06c755;
}

.sns-links .x {
  background: #050505;
}

.sns-links .web {
  background: #2895bc;
}

.wide-button {
  width: min(100%, 650px);
  margin: 0 auto 42px;
}

.hashtag {
  width: min(100%, 650px);
  margin: 0 auto 28px;
  display: grid;
  gap: 18px;
  text-align: center;
  color: var(--brown);
  font-size: clamp(16px, 4.8vw, 20px);
  font-weight: 600;
}

.hashtag span{
  margin-top: 1.8em;
  margin-bottom: -0.4em;
}

.hashtag img {
  width: min(100%, 405px);
  margin: 0 auto;
}
p.mystery-text{
  color: var(--brown);
  font-size: clamp(16px, 4.6vw, 20px);
  font-weight: 600;
  margin-bottom: 0.4em;
}
.mystery-banner {
  width: min(100%, 650px);
  margin: 0 auto 0;
}

.footer {
  margin: 0px -13px 0;
  padding: 44px 30px 84px;
  color: #fff;
  background:
    linear-gradient(180deg, rgba(102,56,17,.78), rgba(102,56,17,.84)),
    url("../img/bg-sp.png") center bottom / cover no-repeat;
  text-align: center;
}

.footer p{
  font-weight: 400;
}

.footer a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: .18em;
}

.footer p a {
  text-decoration-line: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: .18em;
}

.contact-button {
  width: min(80%, 460px);
  margin: 0 auto 56px;
}

.contact-button img{
  width: min(90%, 460px);
  margin: 0 auto 46px;
}

.contact-button img:hover{
  opacity: .65;
  transition: .3s;
}

.footer-logo {
  width: 220px;
  margin: 0 auto;
}

.pc-title {
  display: none;
}

.pc-title-logo {
  display: none;
}

@media (min-width: 901px) {
  body {
    height: 100vh;
    overflow: hidden;
  }

  .site-shell {
    height: 100vh;
    display: grid;
    grid-template-columns: minmax(280px, 1fr) minmax(520px, 780px) minmax(280px, 1fr);
  }

  .pc-side {
    min-width: 0;
    height: 100vh;
    display: flex;
    position: relative;
    overflow: hidden;
    background:
      linear-gradient(180deg, rgba(83,0,7,.05), rgba(83,0,7,.18)),
      url("../img/bg-pc.png") center top / cover no-repeat;
  }

  .pc-side::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(70,0,6,.08);
    pointer-events: none;
  }

  .pc-left {
    align-items: center;
    justify-content: flex-end;
    padding: 120px 2vw 80px 24px;
  }

  .pc-nav {
    position: relative;
    z-index: 2;
    display: grid;
    gap: 18px;
    width: 100%;
    max-width: 380px;
    justify-items: start;
  }

  .pc-nav a {
    transition: transform .18s ease, filter .18s ease;
  }

  .pc-nav a:hover {
    transform: translateX(8px);
    filter: drop-shadow(0 3px 0 rgba(0,0,0,.28));
  }

  .pc-nav img {
    height: clamp(28px, 2.2vw, 42px);
    width: auto;
    max-width: none;
  }

  .pc-right {
    align-items: center;
    justify-content: center;
    padding: 16vh calc(10px + 0.4vw) 84px;
    position: relative;
  }

  .pc-right-inner {
    position: relative;
    padding-top: 0;
    z-index: 2;
    width: min(86%, 500px);
    min-height: 72vh;
    display: grid;
    align-content: center;
    justify-items: center;
    gap: 30px;
  }

  .pc-title {
    display: none;
  }

  .pc-title-logo {
    display: block;
    width: min(96%, 470px);
    filter: drop-shadow(0 4px 0 rgba(30,0,0,.18));
  }

  .pc-logo {
    width: min(44%, 190px);
  }

  .pc-buy {
    width: min(110%, 460px);
    display: block;
    position: absolute;
    bottom: -5vh;
    left: 52%;
    
    transform: translateX(-50%);
  }

  .pc-buy img {
    width: 100%;
  }
.pc-buy img:hover{
  opacity: .8;
  transition: .4s;
}
  .center-scroll {
    height: 100vh;
    min-height: 0;
    overflow-y: auto;
    background-image: url("../img/bg-sp.png"), url("../img/bg-pc-gold.png");
    background-position: center top, center top;
    background-size: 100% auto, 40px auto;
    background-repeat: repeat-y, repeat;
    background-origin: padding-box, border-box;
    background-clip: padding-box, border-box;
    border-left: 12px solid transparent;
    border-right: 12px solid transparent;
    box-shadow:
      inset 7px 0 12px rgba(255,236,149,.35),
      inset -7px 0 12px rgba(255,236,149,.35);
    scrollbar-color: rgba(157,105,49,.65) rgba(255,255,255,.2);
    position: relative;
  }
  .escape-button img{
    width: 100%;
    margin-right: 0;
  }

  .center-scroll::-webkit-scrollbar {
    width: 9px;
  }

  .center-scroll::-webkit-scrollbar-thumb {
    background: rgba(157,105,49,.72);
  }

  .hero {
    margin-bottom: 30px;
    min-height: 100vh;
    background-image: url("../img/kv-pc.png");
    background-size: cover;
    background-position: center top;
  }

  .menu-toggle,
  .mobile-menu,
  .floating-sns {
    display: none;
  }

  .paper-content {
    padding-left: 42px;
    padding-right: 42px;
    padding-bottom: 0;
  }

  .buy-anchor {
    display: none;
  }

  .decor-line {
    margin-top: 72px;
  }

  .section {
    padding-left: 0;
    padding-right: 0;
    padding-bottom: 62px;
  }

  .lead {
    font-size: 28px;
  }

  .section p {
    font-size: 22px;
  }
  .accordion-body p{
    font-size: 18px;
  }
  .notice-card img{
    min-width: 60%;
    max-width: 460px;
    margin: 20px auto;
  }
  .notice-card p,
  .shop-list,
  .accordion-body {
    font-size: 18px;
  }
  
  .sns-links,.wide-button,.wide-button img{
    max-width: 420px;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
  }
  .coupon{
    margin: 20px auto 62px;
  }

  .footer {
    margin-left: -42px;
    margin-right: -42px;
  }
}

@media (max-width: 520px) {
  .section {
    scroll-margin-top: 74px;
  }
  
  .paper-content {
    padding-left: 12px;
    padding-right: 12px;
  }

  .section {
    padding-left: 0;
    padding-right: 0;
  }
  .section#how-to-play{
    margin-bottom: 34px;
  }
  .feature-grid {
    gap: 24px 16px;
  }

  .price-row {
    flex-direction: row;
    align-items: flex-start;
  }
  .sns-links {
    gap: 10px;
  }

  .sns-links a {
    min-height: 96px;
  }
}