@charset "utf-8";
html{
  scroll-behavior: smooth;
  scroll-padding-top: 73px;
}
:root {
  /* カラー */
  --bg01: #030303;
  --fg01: #8a857c;
  --bg02: #484444;
  --bg03: #4A4740;
  --accent: #7ab8b0;
  --gold: #85770F;
  --wht: #fff;

  /* フォント */
  --heading: "Zen Old Mincho", serif;

  /* ウェイト */
  --fw-ex-bold: 700;
  --fw-bold: 600;
  --fw-normal: 400;

  /* フォントサイズ */
  --fs-h2: 3.0rem;
  --fs-h3: 2.4rem;
  --fs-h4: 1.8rem;
  --fs-ll: 3.2rem;
  --fs-l: 2.8rem;
  --fs-p: 1.6rem;
  --fs-s: 1.4rem;
  --fs-ss: 1.2rem;
}
* { box-sizing: border-box; }

#null img {
  max-width: 100%;
  height: auto;
  display: block;
}
#null a {
  text-decoration: none;
  color: inherit;
}
#null figure {
  margin: 0;
}
/* iOSでのデフォルトアイコンを非表示にする */
#null details summary {
  list-style: none; /* リストスタイルの削除 */
}

/* Safari特有のデフォルトマーカーを非表示にする */
#null summary::-webkit-details-marker {
  display: none;
}


/*=====================================
共通アイテム
======================================*/
/* 見出し */
#null .head02 {
  font-family: var(--heading);
  text-align: center;
  margin: 0 auto 6.4rem;
  font-size: var(--fs-h2);
  font-weight: var(--fw-ex-bold);
  position: relative;
}
#null .head02::after {
  content: "";
  display: block;
  background: url(../images/head02-deco.svg) no-repeat bottom center;
  width: 300px;
  height: 109px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index:0;
  opacity: 0.7;
}
#null .head02 span {
  position: relative;
  z-index: 1;
}
#null .head03 {
  font-family: var(--heading);
  font-size: var(--fs-h3);
  font-weight: var(--fw-ex-bold);
}

#null .head04 {
  font-weight: var(--fw-bold);
}

/* 文字 */
#null .txt {
  font-size: var(--fs-p);
  line-height: 1.6;
}
#null a.txt-link {
  border-bottom: 1px solid var(--accent);
  color: var(--accent);
}
#null a.txt-link:hover {
  border-bottom: none;
}
#null .credit {
  font-size: var(--fs-ss);
  color: var(--fg01);
}

/* ボタン */
#null a.btn01 {
  background: var(--accent);
  color: var(--bg01);
  font-size: var(--fs-p);
  font-weight: var(--fw-bold);
  padding: 8px;
  border-radius: 1px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: fit-content;
  margin: 0 auto;
  border: 2px solid var(--bg01);
  gap: 0.4rem;
  transition: border-radius 0.5s;
  line-height: 1.4;
  text-align: center;
}
#null a.btn01 .btn01-txt {
  flex: 1;
  padding-left: 20px;
}
#null a.btn01.wht {
  background: var(--wht);
}
#null a.btn01:hover {
  border-radius: 20px;
}

#null a.btn02 {
  font-size: var(--fs-s);
  font-weight: var(--fw-bold);
  padding: 8px;
  border-radius: 1px;
  display: flex;
  width: fit-content;
  margin: 0 auto;
  align-items: center;
  background: var(--bg02);
  gap: 0.4rem;
  transition: border-radius 0.5s;
}
#null a.btn02:hover {
  border-radius: 20px;
}

/* ホバー透過 */
#null .fade {
  transition: opacity 0.5s;
}
#null .fade:hover {
  opacity: 0.5;
}
/* シンプルなリスト */
#null .disc-small li {
  margin-left: 16px;
  padding-left: 6px;
  position: relative;
}
#null .disc-small li::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--bg01);
  position: absolute;
  top: 12px;
  left: -10px;
  border-radius: 50%;
}

/*=====================================
本体
======================================*/
#null {
  font-family: "Noto Sans JP", sans-serif;
  font-size: var(--fs-p);
}

#null h1 {
  max-width: 1280px;
  padding: 1rem 2rem;
  font-size: var(--fs-h4);
  line-height: 1.2;
  font-weight: var(--fw-bold);
  margin-inline: auto;
}

/*=====================================
ナビゲーション
======================================*/
#null .anchor_area {
  background: rgba(3,3,3,0.5);
  padding: 16px;
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 100;
}

#null .anchor_area > ul {
  width: 100%;
  max-width: 1236px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 1.2rem;
}

#null .anchor_area > ul > li {
  background-color: var(--wht);
  flex: 1;
  text-align: center;
  font-size: var(--fs-s);
  line-height: 1.2;
  display: flex;
  justify-content: center;
}

#null .anchor_area a {
  width: 100%;
  color: var(--bg01);
  font-weight: var(--fw-bold);
  display: flex;
  justify-content: space-between;
  padding: 12px 8px;
  align-items: center;
}

#null .anchor_area .anchor-txt {
  flex: 1;
}
#null .anchor_area .anchor-icon {
  width: 1em;
  height: auto;
  margin-left: auto;
}


/* カレント表示 */
#null .anchor_area > ul > li.active {
  background-color: var(--accent);
}


/*=====================================
コンテンツ
======================================*/
#null .null-wrap {
  width: 100%;
  margin: 0 auto;
  background: var(--bg01);
  color: var(--wht);
}
#null .wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    padding: 80px 0;
}

#null .contents {
  width: 100%;
  max-width: 1028px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  gap: 3.2rem;
}

/*=====================================
メインビジュアル
======================================*/
#null .hero {
  width: 100%;
  position: relative;
}

#null .hero-image {
  width: 100%;
}
#null .hero-image img {
  width: 100%;
}
#null .hero-title {
  position: absolute;
  top: 0;
  left: 0;
  text-align: center;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: var(--wht);
  line-height: 1.4;
}
#null .hero-title p {
  font-weight: var(--fw-ex-bold);
  font-size: 48px;
  text-shadow: 3px 3px 2px var(--bg01);
}
#null .hero-title p span {
  font-weight: var(--fw-bold);
  display: block;
  font-size: var(--fs-h2);
  text-shadow: 3px 3px 3px var(--bg01);
}
#null .hero-credit {
  position: absolute;
  bottom: 0;
  left: 0;
  background: rgba(0, 0, 0, 0.5);
}
#null .hero-credit .credit {
  font-size: var(--fs-ss);
  padding: 4px 8px;
  color: var(--wht);
  margin: 0;
}

/*=====================================
intro
======================================*/
.intro {
  text-align: center;
  font-size: var(--fs-h3);
  padding: 40px;
  font-family: var(--heading);
  font-weight: var(--fw-ex-bold);
}
/*=====================================
info
======================================*/
.info-list {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  color: var(--accent);
  padding-left: 1.4rem;
}
.infolist__item {
  list-style: disc;
}

/*=====================================
outline
======================================*/
.outline-desc {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 0 1rem;
  border-left: 2px solid var(--accent);
}
.outline-desc dt {
  font-weight: var(--fw-bold);
  font-size: var(--fs-p);
  color: var(--accent);
}
.outline-desc dd {
  font-size: var(--fs-p);
}

/*=====================================
plan
======================================*/
.css-slider {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  overflow: hidden;
}
.slider-inner {
  display: flex;
  width: 300%; /* 枚数分 */
  list-style: none;
  padding: 0;
  margin: 0;
  animation: slide-anim 11s infinite;
}
.slider-inner li {
  width: 33.3333%;
}
.slider-inner li img {
  width: 100%;
  height: auto;
  display: block;
}

.css-slider:hover .slider-inner {
  animation-play-state: paused;
}
@keyframes slide-anim {
    0%, 35% {
    transform: translateX(0);
  }

  45%, 85% {
    transform: translateX(-33.3333%);
  }

  95%, 100% {
    transform: translateX(-66.6666%);
  }
}

#null .point-desc .head03 {
  font-size: var(--fs-l);
  color: var(--gold);
  line-height: 1.2;
  text-align: center;
  margin-bottom: 2rem;
}
.point-card {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.4rem;
}
.point-card__item {
  background-color: var(--gold);
  padding: 0 1.6rem 1.6rem;
}
.point_num {
  background-color: var(--bg01);
  display: inline-block;
  color: var(--gold);
  padding: 0 0.8rem 0.4rem;
  line-height: 1;
  margin-bottom: 1rem;
}
.point_num > span {
  font-size: var(--fs-ll);
  font-family: var(--heading);
  font-weight: var(--fw-ex-bold);
}
.point_txt > strong {
  font-size: var(--fs-l);
  font-family: var(--heading);
  font-weight: var(--fw-ex-bold);
  line-height: 1.2;
  margin: 0 0.3rem;
}
.point_txt > strong:first-of-type {
  margin-left: 0;
}

.spacing {
  letter-spacing: -0.2em;
  margin-right: 0.2rem;
}

.tickets-list {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 3.2rem;
}

.tickets-list > li {
  border: 1px solid var(--accent);
  padding: 2.4rem;
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
}
.ticket-price {
  display: flex;
  flex-direction: column;
}
.ticket-price dt {
  font-weight: var(--fw-bold);
}
.ticket-price dt::before {
  content: "";
  width: 1.6rem;
  height: 2px;
  background: var(--accent);
  display: inline-block;
  margin-right: 8px;
  vertical-align: middle;
}
.ticket-price dt:last-of-type {
  margin-top: 1.6rem;
}

#null .tickets-list > li .btn01 {
  width: 50%;
}

#null .tickets-list .head03 {
  color: var(--accent);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.set-plan-list {
  display: flex;
  gap: 2.4rem;
}
.set-plan-list li {
  background: var(--bg03);
  padding: 0 1rem 1rem;
  line-height: 1.4;
  position: relative;
}
.set-plan-list li + li::before,
.set-plan-list li + li::after {
  content: "";
  position: absolute;
  width: 2px;
  height: 24px;
  background-color: var(--fg01);
  top: 50%;
  left: -12px; /* gap 24px の中央 */
}

.set-plan-list li + li::before {
  transform: translate(-50%, -50%) rotate(45deg);
}

.set-plan-list li + li::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}
.set-plan-desc {
  display: flex;
  gap: 1rem;
  position: relative;
  top: 0.6rem;
  align-items: center;
}
.set-plan-desc dt {
  background: var(--accent);
  width: 62px;
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--bg01);
  font-size: var(--fs-s);
  font-weight: var(--fw-ex-bold);
  line-height: 1.15;
  border-radius: 50%;
}
.set-plan-desc dd {
  flex: 1;
  font-size: var(--fs-s);
}

.pamphlet {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  margin-inline: auto;
  padding: 1.6rem 0;
}
#null .pamphlet img {
  max-width: 240px;
}
#null .pamphlet > .btn02 {
  justify-content: center;
}

#null .btn-wrap {
  display: flex;
  gap: 1.5rem;
}

/*=====================================
attraction
======================================*/
.contents-attraction {
  max-width: 1028px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  gap: 4rem;
}
.attraction-list {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  width: 100%;
}
#null .attraction-list .head03 {
  color: var(--accent);
  text-align: center;
}
.attraction-list.inner {
  gap: 3.2rem;
}

.attraction-item {
  display: flex;
  gap: 2.4rem;
  width: 100%;
}
.attraction-item:nth-child(even) {
  flex-direction: row-reverse;
}
.attraction-item figure {
  flex: 6;
}
.attraction-desc {
  flex: 4;
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
}

/*=====================================
access
======================================*/
#null .access-cont {
  width: 100%;
  display: flex;
  flex-direction: row;
  gap: 3.2rem;
  max-width: 760px;
}
.access-desc {
  width: 100%;
  margin: 0 auto;
  padding: 0 1rem;
  border-left: 2px solid var(--accent);
}
.access-desc dt {
  font-weight: var(--fw-bold);
  font-size: var(--fs-p);
  color: var(--accent);
}
.access-desc dd {
  font-size: var(--fs-p);
}

/*=====================================
faq
======================================*/
/* Q/A共通アイコン */
.icon-q,
.icon-a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--accent);
  margin-right: 16px;
  flex-shrink: 0;
  font-size: var(--fs-h3);
  font-family: var(--heading);
  font-weight: var(--fw-ex-bold);
  color: var(--accent);
}

/* Q用背景と文字色 */
.icon-q {
  color: var(--bg01);
  background: var(--accent);
}

.faq-cont {
  width: 100%;
  max-width: 1028px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.accordion {
  position: relative;
  border-bottom: 1px solid var(--accent);
  padding: 0 0 3.2rem;
  transition: 0.5s;
  list-style: none;
}

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

.accordion__title {
  cursor: pointer;
  display: flex;
  align-items: center;
  color: var(--accent);
}

.accordion__title-inner {
  display: flex;
  align-items: center;
  flex: 1; /* 可変幅 */
}

.accordion__title::after {
  content: "";
  width: 8px;
  height: 8px;
  border-top: 2px solid var(--accent);
  border-right: 2px solid var(--accent);
  transform: rotate(135deg);
  transition: transform 0.3s;
  margin: 8px;
}

.accordion[open] .accordion__title::after {
  transform: rotate(-45deg);
}

/* アコーディオン開閉部 */
.accordion__description {
  overflow: hidden;
  /* transition: max-height 0.4s ease, opacity 0.4s ease; */
  display: flex;
  align-items: center; /* 上揃えでズレ防止 */
  margin-top: 0;
  max-height: 0;
  opacity: 0;
}

/* 開いたときだけトランジションを付与 */
.accordion[open] .accordion__description {
  animation: accordionOpen 0.8s ease forwards;
  margin-top: 16px;
}

@keyframes accordionOpen {
  0% {
    max-height: 0;
    opacity: 0;
  }
  100% {
    max-height: 500px; /* 中身より大きめに */
    opacity: 1;
  }
}

.accordion__description p {
  margin: 0 20px 0 0;
}


/*=====================================
search
======================================*/
.search__list {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
  max-width: 1028px;
  margin: 0 auto;
  padding: 0 2rem;
}

.search__list li {
  flex: 1;
}

#null .search__list li a {
  display: block;
  width: 100%;
  height: 100%;
  color: var(--wht);
  font-size: var(--fs-s);
  line-height: 1.4;
}

.copyright {
  padding: 20px;
  text-align: center;
  font-size: 12px;
}

/*=====================================
pagetop
======================================*/
.pagetop {
  position: fixed;
  bottom: 20px;
  right: 30px;
  width: 3.75rem;
  height: 3.75rem;
  display: flex;
  text-align: center;
  font-size: 1.4rem;
  justify-content: center;
  align-items: center;
  background-color: var(--bg02);
  border-radius: 50%;
  color: var(--bg01);
  padding: 0.15rem;
  cursor: pointer;
}

.pagetop span {
  font-size: 4rem;
}

/*=====================================
共通
======================================*/
#null .sp, #null .sp-br {
  display: none;
}

#null .center {
  margin: 0 auto;
  text-align: center;
}