:root {
  --color-black: #000005;
  --color-white: #CCC;
  --color-bg-black: #19191D;
  --color-bg-white: #FFFFFF;
  --color-cyan: #00F0FF;
  --color-magenta: #FF00FF;
  
  --content-width: 1200px;
  --content-width-sp: 90vw;
  
  --radius: 5px;
  --border-width: 3px;
}

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

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  background-color: var(--color-bg-black);
  color: var(--color-white);
  font-family: "M PLUS 1p", sans-serif;
  font-weight: 500;
  line-height: 1.5;
  overflow-x: clip;
}

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

a {
  color: inherit;
  text-decoration: none;
}
a img:hover {
  opacity: 0.7;
}


/* =========================================
   PC/SP 表示切り替えクラス
========================================= */
@media (min-width: 769px) {
  .invisible-pc { display: none !important; }
}
@media (max-width: 768px) {
  .invisible-sp { display: none !important; }
}

/* ========================================
   改行タグのPC/SP出し分け
   ======================================== */
/* スマホ（768px以下）の時は、PC用の改行を消す */
@media (max-width: 768px) {
    .br-pc { display: none; }
}

/* PC（769px以上）の時は、スマホ用の改行を消す */
@media (min-width: 769px) {
    .br-sp { display: none; }
}
@media (min-width: 769px) and (max-width: 1000px) {
  .br-tb { display: none; }
}



/* =========================================
   ヘッダー / フッター
========================================= */
#dmm_ntgnavi {
    position: relative;
    top: 0;          
    left: 0;         
    width: 100%;     
    z-index: 999;
    background: url(../images/bg_navimain.gif) center center repeat-x;
    border-bottom: 1px solid #ccc;
    border-top: 1px solid #ccc;
    font-size: 12px;
    font-family: 'メイリオ', 'Meiryo', 'Hiragino Kaku Gothic Pro', 'ヒラギノ角ゴ Pro W3', 'ＭＳ Ｐゴシック', Verdana, sans-serif;
    display: flex;
    justify-content: space-between;
}
#dmm_ntgnavi ul {
    list-style: none;
    margin: 2px 0;
    padding: 0;
    display: flex;
    width: 50%;
}
#dmm_ntgnavi ul li {
    margin: 0 6px 0 0;
    line-height: 15px;
}
#dmm_ntgnavi .navi_left li > a {
    display: block;
    padding: 0 3px 0 8px;
    text-decoration: none;
    border: 1px solid #eee;
    border-radius: 3px;
}
#dmm_ntgnavi .navi_left li > a:hover {
    background: #eee;
    border: 1px solid #666;
    border-radius: 3px;
}
#dmm_ntgnavi .navi_left li > a span {
    display: block;
    padding: 9px 10px 7px 28px;
    color: #333;
    font-weight: bold;
}
#dmm_ntgnavi .navi_left li.dmm_top img { margin: 8px 5px 8px 0 }
#dmm_ntgnavi .navi_left li.ntg_top { margin-left: 10px; }
#dmm_ntgnavi .navi_left li.ntg_top span {
    background: url(../images/bg_bt_olgtop.gif) 0 center no-repeat;
    font-size: min(2.9vw,12px);
}
#dmm_ntgnavi .navi_right {
    justify-content: flex-end;
    font-size: 10px;
    color: var(--color-bg-black);
}
#dmm_ntgnavi .navi_right li { margin: 0 10px 0 0; padding: 8px 5px; }
#dmm_ntgnavi .arrow { padding-left: 14px; background: url(../images/arrow_common.gif) no-repeat left center; }
#dmm_ntgnavi .tx-point { font-size: 16px; font-weight: bold; color: #ff4b4b !important; }
#dmm_ntgnavi a { color: inherit; text-decoration: none; }
#dmm_ntgnavi p { margin: 0; line-height: 2.6em; }
#dmm_ntgnavi .clear { clear: both; }




/* =========================================
   Utility
========================================= */
.inner {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 20px;
}

.sp-only {
  display: none !important;
}

/* =========================================
   Header (Nav)
========================================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 60px;
  z-index: 100;
  background-color: transparent;
  mix-blend-mode: difference;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s, background-color 0.3s;
}

.header.is-fixed {
  /*
  position: fixed;
  */
  opacity: 1;
  visibility: visible;
}

.header svg,
.header svg path {
  fill: var(--color-bg-white);
}

.header-inner {
  display: flex;
  align-items: flex-start; /* 上ライン揃え */
  justify-content: space-between;
  /*
  max-width: var(--content-width);
  */
  margin: 0 auto;
  padding: 20px;
  height: 100%;
  mix-blend-mode: difference;
}

.header a:hover {
  opacity: 0.5;
}

.header-left img,
.header-left svg {
  height: 40px;
  width: auto;
  display: block;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 60px;
  font-family: "purista-web", sans-serif;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 32px;
  margin-top: 4px;
  font-style: italic;
  /*
  */
}

.nav-list a {
  font-weight: 500;
  font-size: 14px;
  color: var(--color-bg-white);
}

.nav-icons {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-icons img,
.nav-icons svg {
  height: 24px;
  width: auto;
  display: block;
}

.nav-icons .icon-x,
.nav-icons .icon-yt {
  margin-top: 4px;
}
.nav-icons .icon-x {
  margin-left: 0px;
}

/* PC用 言語切り替え全体ラッパー（XやYTを押し出すプレースホルダー） */
.lang-pc-wrapper {
  position: relative;
  width: 118px;
  height: 24px;
  margin-top: 5px;
}

/* 枠線や背景を持つ本体 */
.lang-selector-pc {
  position: absolute;
  top: -4px;
  left: -4px;
  display: flex;
  flex-direction: column;
  width: 118px;
  border: 2px solid var(--color-bg-white);
  border-radius: 15px;
  background-color: transparent;
  transition: border-radius 0.3s ease, background-color 0.4s ease;
  overflow: hidden;
  z-index: 10;
}
.lang-selector-pc:hover {
  background-color: #333;
  border-radius: 15px;
}

/* ボタン本体（透明背景） */
.btn-lang-pc {
  display: flex;
  align-items: center;
  width: 100%;
  height: 27px;
  padding: 0 10px;
  gap: 8px;
  background: transparent;
  border: none;
  outline: none;
  cursor: pointer;
  transition: background-color 1.2s ease;
}

.btn-lang-pc svg {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  fill: var(--color-bg-white);
}

.lang-text-pc {
  color: var(--color-bg-white);
  font-family: "purista-web", sans-serif;
  font-weight: 500;
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.05em;
  opacity: 1;
  transform: translateX(0);
}
.btn-lang-pc svg {
  width: 16px;
  height: 16px;
  }



.lang-list-wrap-pc {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.4s ease;
}
.lang-selector-pc:hover .lang-list-wrap-pc {
  grid-template-rows: 1fr;
}
.lang-list-pc {
  min-height: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.lang-selector-pc:hover .lang-list-pc {
  opacity: 1;
  padding-bottom: 5px;
  transition: opacity 0.4s ease 0.1s;
}
.lang-list-pc a {
  display: block;
  padding: 8px 0;
  color: var(--color-bg-white);
  font-weight: 500;
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s;
}
.lang-list-pc a:hover {
  opacity: 0.5;
}





.hamburger {
  display: none;
  flex-direction: column;
  align-items: center;
  width: 34px; /* テキストの文字幅と線の長さを揃えるための固定幅 */
  gap: 6px; /* クロス時にもテキストに被らない余白 */
  cursor: pointer;
  z-index: 101;
}.hamburger.is-active {
  gap: 8px;
}

.hamburger-icon {
  position: relative;
  width: 100%; /* 親の34pxに合わせてテキストと同幅にする */
  height: 8px; /* 2本の線の間隔を狭くする */
}

.hamburger-icon span {
  position: absolute;
  right: 0;
  height: 2px;
  background-color: var(--color-bg-white);
  transition: transform 0.3s ease, top 0.3s ease, bottom 0.3s ease, width 0.3s ease;
}

.hamburger-icon span:nth-of-type(1) {
  top: 0;
  width: 75%;
}

.hamburger-icon span:nth-of-type(2) {
  bottom: 0;
  width: 100%;
}

.hamburger.is-active .hamburger-icon span:nth-of-type(1) {
  width: 100%;
  top: 50%;
  transform: translateY(-50%) rotate(20deg); /* クロス角度を20度に浅く */
}

.hamburger.is-active .hamburger-icon span:nth-of-type(2) {
  bottom: auto;
  top: 50%;
  transform: translateY(-50%) rotate(-20deg); /* クロス角度を-20度に浅く */
}

.hamburger-text {
  font-family: "Inter", sans-serif;
  font-weight: 700;
  font-size: 10px;
  color: var(--color-bg-white);
  line-height: 1;
  text-align: center;
  width: 100%;
  letter-spacing: 0.05em; /* 幅に馴染むように少しだけ字間をあける */
}

.hamburger-text::after {
  content: "MENU";
}
.hamburger.is-active .hamburger-text {
  font-size: 8.5px;
  letter-spacing: 0;
}
.hamburger.is-active .hamburger-text::after {
  content: "CLOSE";
}



/* =========================================
   FV
========================================= */
.mv {
  width: 100%;
  height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-black);
  position: fixed;
  top: 0;
  left: 0;
  z-index: 0;
  overflow: hidden;
}
.mv::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 220px;
  background: linear-gradient(to bottom, rgba(0, 0, 5, 0.8), transparent);
  z-index: 0;
  pointer-events: none;
}
/*
*/

.mv h1 {
  width: 70%;
  max-width: 980px;
  /*
  */
  position: relative; 
  z-index: 11;
}

#cyberBg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}
.scanlines {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
  pointer-events: none;
  background: linear-gradient(
    to bottom,
    #ffffff 0%,
    #ffffff 50%,
    #d8d8d8 50%,
    #d8d8d8 100%
  );
  background-size: 100% 4px;
  mix-blend-mode: multiply;
}


/* =========================================
   Ticker
========================================= */
.ticker {
  height: 48px;
  background: linear-gradient(90deg, var(--color-cyan), var(--color-magenta), var(--color-cyan));
  background-size: 200% auto;
  overflow: hidden;
  display: flex;
  align-items: center;
  color: var(--color-black); 
  border-top: var(--border-width) solid var(--color-black);
  border-bottom: var(--border-width) solid var(--color-black);
  position: relative;
  z-index: 20;
}

.mv + .ticker {
  margin-top: 100vh;
}

.ticker-inner {
  display: flex;
  align-items: center;
  width: max-content;
  flex-shrink: 0;
  gap: 40px;
  padding-right: 40px;
}

/* JS側でクラスが付与されたらアニメーション開始 */
.ticker-inner.is-animated {
  animation: marquee 60s linear infinite;
}

.ticker-logo {
  height: 24px;
  width: auto;
  aspect-ratio: 146 / 20;
  display: block;
  flex-shrink: 0;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-100%); }
}





/* =========================================
   Sections (Common)
========================================= */

.main-content {
  position: relative;
  z-index: 10;
}


.main-content section {
  padding: 150px 0;
}

.sec-title, .sec-booth {
  background-color: var(--color-bg-white);
  color: var(--color-black);
  position: relative;
  z-index: 10;
  overflow: hidden;
}

.sec-stage, .sec-special {
  background-color: var(--color-bg-black);
  color: var(--color-white);
  position: relative;
  z-index: 10;
}

/* ノイズより手前にコンテンツを配置 */
.sec-title .inner,
.sec-booth .inner {
  position: relative;
  z-index: 10;
}
/* 白背景用の微細なノイズレイヤー（SVGデータをCSSに直接埋め込み） */
.sec-title::after,
.sec-booth::after {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='2.5' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  opacity: 0.4;
  pointer-events: none;
  z-index: 1;
  animation: bg-noise 0.4s steps(4) infinite;
}

/* ノイズをランダムにずらして「じじじじ」感を出す */
@keyframes bg-noise {
  0% { transform: translate(0, 0); }
  25% { transform: translate(-2%, 3%); }
  50% { transform: translate(1%, -2%); }
  75% { transform: translate(-3%, 1%); }
  100% { transform: translate(2%, -1%); }
}





.sec-heading {
  font-family: "purista-web", sans-serif;
  font-weight: 700;
  font-style: italic;
  font-size: 200px;
  line-height: 0.75;
  margin-bottom: 0px;
  text-transform: uppercase;
  text-align: left;
  position: relative;
  z-index: 10;
  display: inline-block;
  /* 本体は一切揺らさず、シアンとマゼンタのズレを影として定着させる */
  text-shadow: -1px -1px 0 var(--color-cyan), 1px 1px 0 var(--color-magenta);
}

.sec-title .sec-heading, .sec-booth .sec-heading {
  color: var(--color-black);
}

.sec-stage .sec-heading, .sec-special .sec-heading {
  color: var(--color-bg-white);
}

/* 
  ここからスライス用のグリッチレイヤー 
  普段は見えない状態（clip-path: inset(100%)）にしておき、
  アニメーションの瞬間だけ「横長の帯」として出現して少しズレる
*/
.sec-heading::before,
.sec-heading::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  color: inherit; /* 本体と同じ色（白or黒）を引き継ぐ */
  text-shadow: -2px -2px 0 var(--color-cyan), 2px 2px 0 var(--color-magenta);
  pointer-events: none;
  z-index: 1;
  clip-path: inset(100%); 
}

.sec-heading::before {
  animation: glitch-slice-1 3s infinite linear;
}

.sec-heading::after {
  animation: glitch-slice-2 3s infinite linear;
}

/* 
  ビビッ！と瞬間的なノイズ
  移動距離（translate）は2〜4px程度に抑え、鋭さを出す
*/
@keyframes glitch-slice-1 {
  0%, 4%, 51%, 100% { clip-path: inset(100%); transform: translate(0); }
  1% { clip-path: inset(10% 0 70% 0); transform: translate(-3px, 0); }
  2% { clip-path: inset(50% 0 30% 0); transform: translate(3px, 0); }
  3% { clip-path: inset(20% 0 60% 0); transform: translate(-2px, 0); }
  50% { clip-path: inset(40% 0 40% 0); transform: translate(2px, 0); }
}

@keyframes glitch-slice-2 {
  0%, 4%, 51%, 100% { clip-path: inset(100%); transform: translate(0); }
  1.5% { clip-path: inset(30% 0 50% 0); transform: translate(4px, 0); }
  2.5% { clip-path: inset(60% 0 20% 0); transform: translate(-3px, 0); }
  3.5% { clip-path: inset(10% 0 80% 0); transform: translate(2px, 0); }
  50.5% { clip-path: inset(70% 0 10% 0); transform: translate(-2px, 0); }
}





/* =========================================
   Card Component (TITLE / BOOTH)
========================================= */
.grid-card {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  position: relative;
  z-index: 11;
  margin-top: -12px;
}

.grid-item {
  display: block;
  border-radius: var(--radius);
  border: var(--border-width) solid var(--color-black);
  box-shadow: 5px 5px 0 0 var(--color-black);
  overflow: hidden;
  background-color: var(--color-black);
  background-color: var(--color-white);
  position: relative;
}

.grid-item img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.grid-item img:hover { opacity: 0.3;}

.item-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 1;
}

/* ストライプとブラーの背景層（新設） */
.item-overlay::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    0deg,
    rgba(255, 255, 255, 0.4),
    rgba(255, 255, 255, 0.4) 2px,
    rgba(255, 255, 255, 0.2) 2px,
    rgba(255, 255, 255, 0.2) 4px
  );
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: -1;
  /* 左から右へ伸びるための初期状態 */
  transform-origin: left center;
  transform: scaleX(0);
  transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

.grid-item:hover .item-overlay::before {
  transform: scaleX(1);
}

/* ホバー時のテキスト */
.item-title {
  color: var(--color-black);
  font-weight: 700;
  font-size: clamp(12px, 2.6vw, 18px);
  text-align: center;
  padding: 0 10px;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.grid-item:hover .item-title {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.2s; 
}



/* =========================================
   STAGE
========================================= */
.stage-tabs-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 0px;
  margin-top: -10px;
  width: 100%;
  position: relative;
  z-index: 15;
}

.stage-tabs {
  display: flex;
  gap: 12px;
  width: 100%;
  /*
  border-bottom: var(--border-width) solid var(--color-bg-white);
  */
}

.tab-group {
  display: flex;
  flex-direction: column;
}

.tab-group:nth-child(1) {
  flex: 2;
}

.tab-group:nth-child(2) {
  flex: 3;
}

.tab-label {
  font-family: "purista-web", sans-serif;
  font-weight: 700;
  font-size: clamp(14px, 1vw, 20px);
  line-height: 1;
  padding: 4px;
  margin-bottom: 10px;
  display: block;
  color: var(--color-black);
  text-align: center;
  font-style: normal;
}
.tab-label.color-cyan {
  background: linear-gradient(90deg, #01feff, #5db0fd);
}
.tab-label.color-magenta {
  background: linear-gradient(90deg, #ff00ff, #c451fc);
}

.tab-buttons {
  display: flex;
  gap: 12px;
  height: 100%;
}

.tab-btn {
  flex: 1;
  height: auto;
  border: none;
  background-color: #a2a2a4;
  color: #303035;
  font-family: "purista-web", sans-serif;
  font-weight: 500;
  font-style: italic;
  font-size: clamp(48px, 3.8vw, 56px);
  padding: 2px 0 3px;
  cursor: pointer;
  border-radius: var(--radius) var(--radius) 0 0;
  transition: all 0.3s;
}

.tab-btn.is-active {
  background-color: var(--color-bg-white);
  color: var(--color-black);
}

.stage-content-panel {
  display: none;
}
.stage-content-panel.is-active {
  display: block;
}

.stage-list {
  border-top: var(--border-width) solid var(--color-bg-white);
}

.stage-item {
  display: flex;
  align-items: center;
  padding: 30px 15px;
  border-bottom: var(--border-width) solid var(--color-bg-white);
  transition: background-color 0.3s;
}
a.stage-item:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.stage-time {
  font-family: "purista-web", sans-serif;
  font-weight: 700;
  font-style: italic;
  font-size: clamp(16px, 3.3vw, 40px);
  width: 11.0vw;
  max-width: 180px;
  color: var(--color-bg-white);
}

.stage-info {
  flex: 1;
  padding: 0 60px 0 15px;
}

.stage-title {
  font-size: clamp(18px, 1.8vw, 22px);
  font-weight: 700;
  color: var(--color-bg-white);
  margin-bottom: 0px;
}

.stage-tags {
  display: flex;
  gap: 10px;
  margin-top: 10px;

  /*公開時、一時的にタグ表示*/
  /*display: none;
  /*公開時、一時的にタグ表示*/
}
.tag {
  background-color: var(--color-bg-white);
  font-weight: 800;
  font-size: 12px;
  border: 1px solid var(--color-bg-white);
  border-radius: 20px;
  padding: 4px 12px;
  color: var(--color-black);
}
.tag-no {
  background-color: var(--color-bg-white);
  font-weight: 800;
  font-size: 12px;
  border: 1px solid var(--color-bg-white);
  border-radius: 20px;
  padding: 4px 12px;
  color: var(--color-black);
  display: none;
}


.stage-arrow {
  width: 56px;
  height: 56px;
  border: var(--border-width) solid var(--color-bg-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transform: translateX(-10px);
  transition: transform 0.3s ease;
}
a.stage-item:hover .stage-arrow {
  transform: translateX(0);
}

.stage-arrow svg {
  width: 24px;
  height: auto;
  fill: var(--color-bg-white);
}

.stage-arrow_no {
  display: none;
}



.stage-special-banner {
  margin-top: 40px;
  text-align: center;
}
.stage-special-banner img {
  border-radius: var(--radius);
  display: inline-block;
}

/* =========================================
   Booth Photo Area
========================================= */
.booth-photo-area {
  position: relative;
  z-index: 5; /* 前後のセクション（z-index: 10）の下に潜り込ませる */
  width: 100%;
  height: 600px;
  clip-path: inset(0);
}

.booth-photo-sticky {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100svh; /* 画面いっぱいに広げる */
  background-image: url('../images/top/bg_booth.webp');
  background-image: image-set(url(../images/top/bg_booth.webp) 1x, url(../images/2x/top/bg_booth@2x.webp) 2x);
  background-image: -webkit-image-set(url(../images/top/bg_booth.webp) 1x, url(../images/2x/top/bg_booth@2x.webp) 2x);
  background-size: cover;
  background-position: center;
  z-index: -1;
}



/* =========================================
   BOOTH
========================================= */
.booth-sub {
  position: relative;
  z-index: 15;
  font-weight: 800;
  font-size: 30px;
  text-align: left;
  margin-top: -10px;
  margin-bottom: 40px;
  background-color: var(--color-black);
  color: var(--color-bg-white);
  padding: 0px 20px;
}

.btn-wrap {
  text-align: center;
  margin-top: 60px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 160px;
  background: linear-gradient(90deg, var(--color-cyan), var(--color-magenta), var(--color-cyan));
  background-size: 200% auto;
  background-position: left center;
  color: var(--color-black);
  padding: 10px 50px;
  font-family: "purista-web", sans-serif;
  font-weight: 700;
  font-style: italic;
  font-size: clamp(24px, 3.4vw, 36px);
  border: var(--border-width) solid var(--color-black);
  border-radius: 50px;
  box-shadow: 5px 5px 0 0 var(--color-black);
  transition: transform 0.2s, box-shadow 0.2s, background-position 0.4s ease;
}
.btn-primary:hover {
  background-position: right center;
}

.btn-arrow {
  width: 40px;
  height: auto;
  fill: var(--color-black);
  flex-shrink: 0;
}

.btn-primary:active {
  transform: translate(2px, 2px);
  box-shadow: 3px 3px 0 0 var(--color-black);
}

/* =========================================
   SPECIAL
========================================= */
.sec-special {
  /*
  position: sticky;
  top: 0;
  min-height: 100vh;
  */
  position: relative;
  z-index: 10;
}

.grid-special {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  position: relative;
  z-index: 15;
  margin-top: -10px;
}

.grid-special a:hover img {
  opacity: 0.7;
}


.special-card {
  display: block;
  background-color: var(--color-bg-white);
  border: var(--border-width) solid var(--color-black);
  border-radius: var(--radius);
  overflow: hidden;
}

.special-img img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.special-text {
  font-size:clamp(18px, 1.8vw, 22px);
  font-weight: 700;
  color: var(--color-bg-black);
  margin-top: 0px;
  padding: 1vw;
}

/* =========================================
   Footer
========================================= */
.footer {
  background-color: var(--color-black);
  padding: 80px 0 0;
  position: relative;
  z-index: 20;
}

.footer-banners {
  width: 980px;
  max-width: 100%;
  margin: 0 auto 60px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 0 0px;
}

.banner-top {
  display: flex;
  flex-direction: column;
  gap: 20px;


  /*公開時、一時的に非公開*/
  display: none;

}

.banner-bottom {
  display: flex;
  gap: 20px;
}

/* バナーが1つだけの時は2つ並び時のサイズ(50% - 余白半分)を維持して中央寄せ */
.banner-bottom .footer-banner-link:only-child {
  width: calc(50% - 10px);
  margin: 0 auto;
}

.footer-banner-link img {
  border-radius: var(--radius);
  width: 100%;
}

.footer-links {
  width: 980px;
  max-width: 100%;
  margin: 0 auto 30px;
  text-align: center;
}
.footer-links a {
  font-size: 14px;
  color: var(--color-bg-white);
}
.footer-links a:hover {
  text-decoration: underline;
}

.footer-links .sep {
  margin: 0 10px;
  color: var(--color-bg-white);
}

.copyright {
  width: 980px;
  max-width: 100%;
  margin: 0 auto 100px;
  text-align: center;
  font-size: 10px;
  opacity: 0.5;
  color: var(--color-bg-white);
}

.footer-logo img {
  width: 100%;
  height: auto;
  display: block;
}

/* =========================================
   Page Top
========================================= */
.page-top {
  position: fixed;
  bottom: 15vw;
  right: 60px;
  width: 60px;
  height: 60px;
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
  mix-blend-mode: difference;
}
.page-top.is-show {
  opacity: 1;
  visibility: visible;
}
.page-top.is-show svg,
.page-top.is-show svg path {
  fill: var(--color-bg-white);
}
.page-top img {
  width: 100%;
}

/* =========================================
   SP
========================================= */
@media screen and (max-width: 768px) {
  .sp-only {
    display: block !important;
  }
  
  .inner {
    max-width: var(--content-width-sp);
    padding: 0;
  }

  .header {
    mix-blend-mode: difference;
    height: 11vw;
  }
  .header.is-menu-open {
    mix-blend-mode: normal;
  }
  .header-inner {
    mix-blend-mode: normal; 
    padding: 4vw;
  }

  .header-left,
  .hamburger,
  .header-nav {
    mix-blend-mode: normal;
  }


  /* SP用 言語切り替えボタン */
  .lang-selector-sp.sp-only {
    display: flex !important;
    flex-direction: column;
    border: 0.5vw solid var(--color-bg-white);
    border-radius: 3.333vw;
    background-color: transparent;
    overflow: hidden;
  }

  /* 開いた時は角丸を5px相当（約1.333vw）に変更 */
  .lang-selector-sp.is-open {
    border-radius: 3.333vw;
    background-color: #333;
  }

  /* SP用 言語切り替えボタン本体 */
  .btn-lang-sp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 2.0vw;
    padding: 0.8vw 2.2vw 0.8vw 2.0vw;
    color: var(--color-bg-white);
    font-family: "purista-web", sans-serif;
    font-weight: 400;
    font-size: 2.9vw;
    font-style: italic;
    background-color: transparent;
    border: none;
    outline: none;
    cursor: pointer;
    transition: background-color 1.2s ease;
  }

  .btn-lang-sp svg {
    width: 3.0vw;
    height: auto;
    fill: var(--color-bg-white);
  }

  /* 高さを0からスッと伸ばすためのGrid設定 */
  .lang-list-wrap {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.4s ease;
  }
  .lang-selector-sp.is-open .lang-list-wrap {
    grid-template-rows: 1fr;
  }

  /* 中のリスト（じわっとフェードイン） */
  .lang-list {
    min-height: 0;
    list-style: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
  }
  .lang-selector-sp.is-open .lang-list {
    opacity: 1;
    padding-bottom: 0.2vw;
    transition: opacity 0.4s ease 0.1s; /* 伸び始めてからじわっと出す */
  }

  .lang-list a {
    display: block;
    padding: 1.0vw 0;
    color: var(--color-bg-white);
    font-weight: 500;
    font-size: 2.5vw;
    text-align: center;
    text-decoration: none;
  }



  .header-nav {
    position: fixed;
    top: -5vh;
    right: -100%;
    width: 100vw;
    height: 105vh;
    background-color: rgba(0, 0, 5, 0.9);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding-left: 9vw; 
    gap: 2vw;
    transition: right 0.3s;
    z-index: 100;
  }
  .header-nav.is-active {
    right: 0;
  }

  .header-nav .ticker {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100vw;
  }
  .header-nav .ticker svg,
  .header-nav .ticker svg path {
    fill: var(--color-black);
  }


  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 5vw;
    margin-bottom: 5vw;
  }

  .nav-list a {
    font-family: "purista-web", sans-serif;
    font-weight: 700;
    font-style: italic;
    font-size: 7.5vw;
    letter-spacing: 0.05em;
  }
  .nav-icons {
    display: flex;
    gap: 6vw;
  }

  .nav-icons .icon-lang {
    display: none; /* カンプにないためSPメニューでは非表示 */
  }

  .nav-icons img,
  .nav-icons svg {
    height: 10vw;
    width: auto;
  }



  .hamburger {
    display: flex;
    width: 9vw;
    gap: 1.5vw;
  }
  .hamburger.is-active {
    gap: 2.0vw;
  }
  .hamburger-icon {
    width: 100%;
    height: 2vw;
  }
  .hamburger-text {
    font-family: "purista-web", sans-serif;
    font-weight: 500;
    font-style: italic;
    font-size: 3.167vw;
  }
  .hamburger.is-active .hamburger-text {
    font-size: 2.8vw;
  }



  
  .mv h1 {
    width: 80%;
    max-width: 800px;
    position: relative; 
    z-index: 11;
  }
  


  .ticker {
    height: 8.5vw; /* 48px相当 */
    border-top: 0.5vw solid var(--color-black);
    border-bottom: 0.5vw solid var(--color-black);
  }
  .ticker-logo {
    height: 4.4vw; /* 24px相当 */
  }

  
  .ticker-inner {
    gap: 9vw;
  }
  
  /* JS側でクラスが付与されたらアニメーション開始 */
  .ticker-inner.is-animated {
    animation: marquee 30s linear infinite;
  }
  


  .sec-heading {
    font-size: 20.667vw; /* 約100px */
    margin-bottom: 10.667vw; /* 40px */
    margin-left: -1.965vw;
  }

  .main-content section {
    padding: 21.333vw 0; /* 80px */
  }

  .sec-title::after,
  .sec-booth::after {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='2.5' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    background-size: 170px 170px;
    opacity: 0.35;
    pointer-events: none;
    z-index: 1;
    animation: bg-noise 0.4s steps(4) infinite;
  }
  
  /* ノイズをランダムにずらして「じじじじ」感を出す */
  @keyframes bg-noise {
    0% { transform: translate(0, 0); }
    25% { transform: translate(-2%, 3%); }
    50% { transform: translate(1%, -2%); }
    75% { transform: translate(-3%, 1%); }
    100% { transform: translate(2%, -1%); }
  }
  
  




  /* Grid Title / Booth */
  .grid-card {
    grid-template-columns: repeat(2, 1fr);
    gap: 3vw;
    margin-top: -12vw;
  }
  .grid-item {
    border-width: 0.5vw; /* 3px */
    border-radius: 1.333vw; /* 5px */
    box-shadow: 0.533vw 0.533vw 0 0 var(--color-black);
  }
  .item-title {
    font-size: clamp(12px, 3.3vw, 18px);
  }



  /* STAGE */
  .stage-tabs-wrap {
    overflow-x: auto;
    padding-bottom: 0vw;
    margin-top: -12vw;
    margin-bottom: 0vw;
  }
  .stage-tabs {
    gap: 1vw;
    width: 100%;
    border: none;
  }
  .tab-group {
    display: flex;
    flex-direction: column;
  }
  .tab-group:nth-child(1) {
    flex: 2;
  }
  .tab-group:nth-child(2) {
    flex: 3;
  }
  .tab-buttons {
    display: flex;
    gap: 1vw;
    height: 100%;
  }
  .tab-label {
    font-size: 2.667vw;
    white-space: nowrap;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0.45vw 2vw;
    margin-bottom: 1vw;
    color: var(--color-black);
  }
  .tab-btn {
    width: 100%;
    height: 12vw;
    font-size: clamp(12px, 6.3vw, 56px);
    border-radius: 1.333vw 1.333vw 0 0;
  }
  .stage-list {
    border-top: 0.5vw solid var(--color-bg-white);
  }
  .stage-item {
    display: block;
    position: relative;
    padding: 6vw 16.5vw 6vw 1vw;
    border-bottom-width: 0.5vw;
  }
  .stage-time {
    font-size: 8vw;
    width: 100%;
    margin-bottom: 1.5vw;
    line-height: 1.0;
  }
  .stage-info {
    padding: 0;
  }
  .stage-title {
    font-size: 4.0vw;
    margin-bottom: 0;
  }
  .stage-tags {
    gap: 2vw;
    margin-top: 2.5vw;

    
    /*公開時、一時的にタグ表示*/
    /*display: none;
    /*公開時、一時的にタグ表示*/
  }
  .stage-tags .tag {
    background-color: var(--color-bg-white);
    font-weight: 800;
    font-size: 3vw;
    border-radius: 25px;
    border: 1px solid var(--color-bg-white);
    padding: 0.3vw 2.3vw;
    color: var(--color-black);
  }

  .stage-arrow {
    position: absolute;
    right: 0.5vw;
    top: 50%;
    width: 12vw;
    height: 12vw;
    border-width: 0.8vw;
    transform: translate(-2vw, -50%);
  }
  a.stage-item:hover .stage-arrow {
    transform: translate(0, -50%);
  }
  .stage-arrow svg {
    width: 5.333vw;
  }

  .booth-photo-area {
    height: 80vw;
  }
  
  .booth-photo-sticky {
    background-image: url('../images/top/bg_booth_sp.webp');
    background-image: image-set(url(../images/top/bg_booth_sp.webp) 1x, url(../images/2x/top/bg_booth_sp@2x.webp) 2x);
    background-image: -webkit-image-set(url(../images/top/bg_booth_sp.webp) 1x, url(../images/2x/top/bg_booth_sp@2x.webp) 2x);
  }
  
  
  

  .booth-sub {
    font-size: clamp(12px, 3.3vw, 18px);
    margin-top: -12vw;
    margin-bottom: 6vw;
    padding: 0.5vw 3vw;
  }

  #booth .grid-card {
    grid-template-columns: repeat(2, 1fr);
    gap: 3vw;
    margin-top: -3vw;
  }

  #booth .btn-wrap {
    margin-top: 10vw;
  }

  .btn-primary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 80%;
    min-height: 12vw;
    margin: 0 auto;
    padding: 2.5vw 6vw;
    font-size: 6.4vw;
    border-width: 0.5vw;
    border-radius: 50px;
    box-shadow: 0.833vw 0.833vw 0 0 var(--color-black);
    line-height: 1;
    gap: 0;
  }

  .btn-arrow {
    width: 6.4vw;
  }


  /* SPECIAL */
  .grid-special {
    grid-template-columns: 1fr;
    gap: 8vw;
    margin-top: -11vw;
  }
  .special-card {
    border: 0.5vw solid var(--color-black);
  }
  .special-text {
    font-size: 4.0vw; /* 16px */
    padding: 1vw 2vw;
  }

  /* Footer */
  .footer {
    padding: 15vw 0 0;
  }

  .footer-banners {
    width: var(--content-width-sp);
    margin-bottom: 10vw;
    padding: 0;
    gap: 2vw;
  }
  .banner-top {
    gap: 2vw;
  }
  .banner-bottom {
    flex-wrap: wrap;
    gap: 2vw;
  }

  /* SP版：バナーが1つだけの時のサイズ指定（中央寄せは共通CSSから継承） */
  .banner-bottom .footer-banner-link:only-child {
    width: calc(75% - 1vw);
  }

  .banner-bottom .footer-banner-link {
    width: calc(50% - 1vw);
  }

  
  .footer-links {
    width: var(--content-width-sp);
  }
  .footer-links a {
    font-size: 3.2vw;
  }
  .footer-links .sep {
    font-size: 3.2vw;
  }
  
  .copyright {
    width: var(--content-width-sp);
    font-size: 2.2vw;
    margin-bottom: 15vw;
  }

  .page-top {
    bottom: 17vw;
    right: 3vw;
    width: 10vw;
    height: 10vw;
  }
}