:root {
  /* ベースは漆黒のみ */
  --bg:           #050409;
  --bg-2:         #0d0c14;
  --bg-3:         #15131f;
  --line:         rgba(255,255,255,0.08);
  --line-strong:  rgba(255,255,255,0.18);
  --text:         #ffffff;
  --text-mute:    #b4b0c4;
  --text-dim:     #6a6680;

  /* メインカラーはネオンピンクのみ */
  --pink:         #f0a527;
  --pink-2:       #f7c061;
  --pink-deep:    #c98712;
  --pink-glow:    rgba(240,165,39,0.05);
  --pink-soft:    rgba(240,165,39,0.02);

  /* 席種カラー */
  --seat-royal:   #ffc83d;       
  --seat-arena:   #ffe066;       
  --seat-photo:   #a1cbff;       
  --seat-rollback:#8be1ff;       
  --seat-female:  #ff80c7;       
  --seat-wheel:   #a89fb8;       
  --seat-lower:   #d0f0fc;       
  --seat-seated:  #7aba07;       
  --seat-middle:  #e8f8c6;       
}

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

/* スムーススクロールと固定ヘッダーのオフセット、font-sizeのベース設定 */
html { 
  scroll-behavior: smooth; 
  scroll-padding-top: 100px;
  font-size: 62.5%; /* 1rem = 10px にするための指定 */
}

body {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 1.6rem; /* 基本サイズを16px相当に保持 */
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  line-height: 1.7;
}

/* ============ 背景アンビエント ============ */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 80% -5%, rgba(240,165,39,0.02) 0%, transparent 55%),
    radial-gradient(ellipse 50% 30% at 10% 40%, rgba(240,165,39,0.02) 0%, transparent 60%),
    radial-gradient(ellipse 50% 30% at 90% 85%, rgba(240,165,39,0.02) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}
body > * { position: relative; z-index: 1; }

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

@media screen and (max-width: 900px) {
  .pc_only { display: none; } 
}

@media screen and (min-width: 901px) {
  .sp_only { display: none; }
}

/* ============ TOP BAR & NAVIGATION ============ */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1001;
  padding: 12px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 12px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(8,7,13,0.82);
  border-bottom: 1px solid rgba(240,165,39,0.03);
  transition: opacity 0.3s ease, visibility 0.3s ease, background 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
}

/* メニュー展開時は背景を透明にして×ボタンを見やすくする */
.topbar.is-active {
  background: transparent;
  border-bottom-color: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.topbar-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  gap: 12px;
}

.topbar-title {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 1.2rem;
  letter-spacing: 0.18em;
  font-weight: 700;
  color: var(--pink);
  text-align: center;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

/* SPメニュー展開時はタイトルを非表示にする */
.topbar.is-active .topbar-title {
  opacity: 0;
  visibility: hidden;
}

.topbar-title .support {
  display: block;
  font-size: 0.9rem;
  letter-spacing: 0.3em;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 3px;
}

.pc-nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
  list-style: none;
}

.pc-nav a {
  font-family: 'Oswald', sans-serif;
  font-size: 1.8rem;
  letter-spacing: 0.1em;
  color: var(--text);
  transition: color 0.3s;
}

.pc-nav a:hover {
  color: var(--pink);
}

/* ハンバーガーボタン */
.hamburger {
  display: none;
  width: 28px;
  height: 20px;
  position: relative;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1001;
  outline: none;
}

.hamburger span {
  display: block;
  position: absolute;
  height: 2px;
  width: 100%;
  background: #fff;
  border-radius: 2px;
  left: 0;
  transition: 0.25s ease-in-out;
}

.hamburger span:nth-child(1) { top: 0px; }
.hamburger span:nth-child(2) { top: 9px; }
.hamburger span:nth-child(3) { top: 18px; }

.hamburger.is-active span:nth-child(1) {
  top: 9px;
  transform: rotate(135deg);
}

.hamburger.is-active span:nth-child(2) {
  opacity: 0;
  left: -20px;
}

.hamburger.is-active span:nth-child(3) {
  top: 9px;
  transform: rotate(-135deg);
}

@media (max-width: 900px) {
  .pc-nav { display: none; }
  .hamburger { display: block; }
  
  .topbar {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 14px 20px;
  }
  
  .topbar-inner {
    width: auto;
    align-items: flex-start;
  }
  
  .topbar-title {
    text-align: left;
    padding-right: 30px;
  }
}

@media (max-width: 640px) {
  .topbar-title { font-size: 1rem; letter-spacing: 0.12em; }
  .topbar-title .support { font-size: 0.8rem; }
}

/* ============ SP MENU OVERLAY ============ */
.sp-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 4, 9, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  overflow-y: auto;
  padding: 100px 24px 40px;
}

.sp-menu-overlay.is-active {
  opacity: 1;
  visibility: visible;
}

.sp-nav ul {
  list-style: none;
  padding: 0;
  margin: 0 0 40px 0;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.sp-nav a {
  font-family: 'Oswald', sans-serif;
  font-size: 2.2rem;
  letter-spacing: 0.15em;
  color: #fff;
  transition: color 0.3s;
}

.sp-nav a:hover, .sp-nav a:active {
  color: var(--pink);
}

.sp-banners {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: 480px;
  margin: 0 auto;
}

.sp-banners img {
  width: 100%;
  height: auto;
  border-radius: 6px;
  border: 1px solid rgba(240, 165, 39, 0.2);
  transition: transform 0.3s;
  display: block;
}

.sp-banners a:hover img {
  transform: scale(1.03);
  border-color: var(--pink);
}

/* ============ HERO ============ */
.hero {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 130px 0 100px;
  background: var(--bg);
}

@media (max-width: 900px) {
  .hero { padding-top: 80px; }
}

.hero-img-wrap {
  position: relative;
  width: 100%;
  max-width: 1920px;
  animation: fadeKV 1.4s ease both;
}
.hero-img-wrap img {
  width: 100%;
  height: auto;
  display: block;
}
@keyframes fadeKV {
  from { opacity: 0; transform: scale(1.02); }
  to   { opacity: 1; transform: scale(1); }
}
.hero-scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-family: 'Oswald', sans-serif;
  font-size: 1.1rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  animation: bounce 2.2s ease infinite;
  z-index: 2;
  opacity: 0.85;
}
.hero-scroll .ln {
  width: 1px;
  height: 32px;
  background: linear-gradient(180deg, transparent, var(--pink));
}
@keyframes bounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(6px); }
}

/* ============ FC CTA ============ */
.ticket-cta {
  position: relative;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(240,165,39,0.03) 0%, transparent 60%),
    var(--bg);
  padding: 70px 24px 80px;
  border-top: 2px solid var(--pink);
  overflow: hidden;
}
.ticket-cta::before {
  content: '';
  position: absolute;
  top: -2px; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, transparent 0%, var(--pink) 50%, transparent 100%);
  background-size: 200% 100%;
  animation: slideGrad 4s linear infinite;
}
@keyframes slideGrad {
  0% { background-position: 100% 50%; }
  100% { background-position: -100% 50%; }
}
.ticket-cta-inner {
  max-width: 1080px;
  margin: 0 auto;
  text-align: center;
}
.ticket-cta-label {
  display: inline-block;
  font-family: 'Oswald', sans-serif;
  font-size: 1.4rem;
  letter-spacing: 0.45em;
  color: var(--pink);
  text-transform: uppercase;
  margin-bottom: 10px;
  padding: 6px 22px;
  border: 1px solid var(--pink);
  border-radius: 999px;
  background: var(--pink-soft);
}
.ticket-cta-title {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(4rem, 8vw, 7.2rem);
  font-weight: 900;
  color: var(--text);
  margin-bottom: 18px;
  letter-spacing: 0.05em;
  line-height: 1.25;
  text-shadow: 0 4px 30px rgba(240,165,39,0.03);
}
.ticket-cta-title .em {
  color: var(--pink);
  text-shadow:
    0 0 18px var(--pink-glow),
    0 0 40px rgba(240,165,39,0.015);
}
.ticket-cta-period-plain {
  font-size: 1.4rem;
  color: var(--text);
  letter-spacing: 0.08em;
  line-height: 1.7;
  margin-bottom: 36px;
}
.ticket-cta-period-plain .period-label {
  font-family: 'Oswald', sans-serif;
  font-size: 1.2rem;
  letter-spacing: 0.35em;
  color: var(--pink);
  margin-right: 10px;
}
@media (max-width: 640px) {
  .ticket-cta-period-plain { font-size: 1.3rem; }
  .ticket-cta-period-plain .period-label { display: block; margin: 0 0 4px 0; }
}
.ticket-cta-sub {
  font-size: 1.3rem;
  color: var(--text-mute);
  letter-spacing: 0.15em;
  margin-bottom: 28px;
}
.ticket-cta-period {
  display: inline-block;
  margin: 0 auto 44px;
  padding: 14px 32px;
  background: rgba(240,165,39,0.015);
  border: 1px dashed rgba(240,165,39,0.015);
  border-radius: 6px;
  font-size: 1.3rem;
  letter-spacing: 0.08em;
  color: var(--text);
  line-height: 1.6;
}
.ticket-cta-period .period-label {
  font-family: 'Oswald', sans-serif;
  font-size: 1.1rem;
  letter-spacing: 0.35em;
  color: var(--pink);
  margin-right: 12px;
  padding-right: 12px;
  border-right: 1px solid rgba(240,165,39,0.05);
}
.ticket-cta-period .period-date {
  font-family: 'Oswald', sans-serif;
  font-weight: 500;
  letter-spacing: 0.05em;
}
@media (max-width: 640px) {
  .ticket-cta-period { font-size: 1.2rem; padding: 12px 20px; }
  .ticket-cta-period .period-label { display: block; margin: 0 0 6px 0; padding: 0 0 6px 0; border-right: 0; border-bottom: 1px solid rgba(240,165,39,0.05); }
}
.ticket-cta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  max-width: 800px;
  margin: 0 auto;
}
.ticket-btn {
  position: relative;
  display: block;
  padding: 32px 28px;
  background: linear-gradient(135deg, var(--bg-2) 0%, var(--bg-3) 100%);
  border: 2px solid var(--pink);
  border-radius: 12px;
  transition: all 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(240,165,39,0.02), inset 0 1px 0 rgba(255,255,255,0.06);
}
.ticket-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 120%, rgba(240,165,39,0.05) 0%, transparent 70%);
  opacity: 0.5;
  transition: opacity 0.35s ease;
}
.ticket-btn:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 20px 60px rgba(240,165,39,0.05), inset 0 1px 0 rgba(255,255,255,0.15);
}
.ticket-btn:hover::before { opacity: 1; }
.ticket-btn > * { position: relative; z-index: 1; }

.ticket-btn-fc {
  font-family: 'Oswald', sans-serif;
  font-size: 1.3rem;
  letter-spacing: 0.4em;
  color: var(--pink);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.ticket-btn-name {
  font-family: 'Noto Serif JP', serif;
  font-size: 2.6rem;
  font-weight: 900;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: 0.06em;
}
.ticket-btn-desc {
  font-size: 1.2rem;
  color: var(--text-mute);
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}
.ticket-btn-arrow {
  display: inline-block;
  padding: 8px 22px;
  background: var(--pink);
  color: #fff;
  font-family: 'Oswald', sans-serif;
  font-size: 1.2rem;
  letter-spacing: 0.2em;
  border-radius: 999px;
  box-shadow: 0 4px 16px rgba(240,165,39,0.05);
}
@media (max-width: 640px) {
  .ticket-cta-grid { grid-template-columns: 1fr; }
}

/* ============ チケットスケジュール（折りたたみ） ============ */
.ticket-schedule {
  max-width: 800px;
  margin: 36px auto 0;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.3s ease;
}
.ticket-schedule[open] {
  border-color: var(--pink);
}
.ticket-schedule summary {
  padding: 18px 48px;
  cursor: pointer;
  list-style: none;
  position: relative;
  text-align: center;
  font-family: 'Noto Serif JP', serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.06em;
  transition: color 0.25s;
}
.ticket-schedule summary:hover { color: var(--pink); }
.ticket-schedule summary::-webkit-details-marker { display: none; }
.ticket-schedule summary::after {
  content: '＋';
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  font-family: 'Oswald', sans-serif;
  font-size: 2.2rem;
  color: var(--pink);
  transition: transform 0.3s ease;
  line-height: 1;
}
.ticket-schedule[open] summary::after { content: '−'; }
.ts-list {
  padding: 4px 24px 20px;
}
.ts-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px dashed rgba(255,255,255,0.08);
}
.ts-row:last-child { border-bottom: 0; }
.ts-name {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.05em;
}
.ts-date {
  font-family: 'Oswald', sans-serif;
  font-size: 1.3rem;
  color: var(--text-mute);
  letter-spacing: 0.06em;
}
@media (max-width: 560px) {
  .ts-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  .ticket-schedule summary { font-size: 1.4rem; padding: 16px 20px; }
  .ts-list { padding: 4px 20px 18px; }
}

/* ============ SECTION BASE / HEADER ============ */
section { padding: 100px 24px; position: relative; }
.container { max-width: 1180px; margin: 0 auto; }
.container-narrow { max-width: 920px; margin: 0 auto; }

@media (max-width: 880px) {
  section { padding: 50px 24px; }
}  

/* セクションごとの境界線：ピンクの装飾的なディバイダ */
.section-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 16px;
}
.section-divider .dot {
  width: 6px;
  height: 6px;
  background: var(--pink);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--pink-glow);
}
.section-divider .bar {
  width: 80px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--pink), transparent);
}
.section-divider .diamond {
  width: 8px;
  height: 8px;
  background: var(--pink);
  transform: rotate(45deg);
  box-shadow: 0 0 12px var(--pink-glow);
}

.section-head {
  text-align: center;
  margin-bottom: 56px;
}
.section-title {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(2.8rem, 4.5vw, 4.4rem);
  font-weight: 900;
  color: var(--text);
  letter-spacing: 0.06em;
  line-height: 1.4;
  margin-top: 4px;
}
.concept-aftertitle {
  text-align: center;
  margin: 56px auto 0;
  max-width: 760px;
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(2.2rem, 3.6vw, 3.6rem);
  font-weight: 900;
  color: var(--text);
  letter-spacing: 0.06em;
  line-height: 1.55;
}
.concept-aftertitle .em {
  color: var(--pink);
  text-shadow: 0 0 14px var(--pink-glow);
}

.section-title-en {
  font-family: 'Oswald', sans-serif;
  font-size: 1.4rem;
  letter-spacing: 0.5em;
  color: var(--pink);
  text-transform: uppercase;
  margin-top: 12px;
}

/* ============ CONCEPT (3公演) ============ */
.concept { background: var(--bg); }

.concept-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.concept-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  position: relative;
  transition: all 0.4s ease;
  overflow: hidden;
  border-radius: 12px;
}
.concept-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--pink);
  z-index: 3;
}
.concept-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(240,165,39,0.04);
  border-color: var(--pink);
}
.concept-photo {
  width: 100%;
  aspect-ratio: 1930 / 2734;
  overflow: hidden;
  position: relative;
  background: #000;
}
.concept-photo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.8s ease;
}
.concept-card:hover .concept-photo img { transform: scale(1.04); }

.concept-body {
  padding: 16px 22px 18px;
  text-align: center;
}
.concept-time {
  font-size: 1.2rem;
  color: var(--text-mute);
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}
.concept-desc {
  font-size: 1.35rem;
  color: var(--text);
  line-height: 1.85;
  letter-spacing: 0.04em;
  opacity: 0.92;
}
@media (max-width: 880px) {
  .concept-grid { grid-template-columns: 1fr; max-width: 460px; margin: 0 auto; }
}

/* ============ TICKET ============ */
.ticket-section {
  background:
    radial-gradient(ellipse at 50% 0%, rgba(240,165,39,0.02) 0%, transparent 50%),
    var(--bg);
}

/* ============ チケットセクション内の公演ブロック ============ */
.ticket-concerts {
  max-width: 900px;
  margin: 0 auto 48px;
  text-align: center;
}
.ticket-concerts-list {
  display: flex;
  flex-direction: column;
  gap: 36px;
  margin-top: 28px;
}
.ticket-concert-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.ticket-concert-item .tci-times {
  display: inline-flex;
  align-items: baseline;
  gap: 18px;
  font-family: 'Oswald', sans-serif;
  letter-spacing: 0.18em;
}
.ticket-concert-item .tci-open {
  font-size: 1.3rem;
  color: var(--text-mute);
}
.ticket-concert-item .tci-start {
  font-size: clamp(2.0rem, 3vw, 2.8rem);
  color: var(--text);
  text-shadow: 0 0 12px var(--pink-glow);
}
.ticket-concert-item .tci-name {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(2.2rem, 3.6vw, 3.2rem);
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: 0.05em;
  color: var(--text);
  margin: 0;
}
.ticket-concert-item .tci-name .quote {
  color: var(--pink);
  font-size: 0.85em;
  margin: 0 0.05em;
}
.ticket-concert-item .tci-name .em {
  color: var(--pink);
  font-size: 1.15em;
  letter-spacing: 0.06em;
  text-shadow: 0 0 14px var(--pink-glow);
  margin-right: 0.05em;
}

/* ファンの皆様の声 (大きめ) */
.ticket-intro-large {
  text-align: center;
  max-width: 900px;
  margin: 0 auto 64px;
}
.ticket-intro-large p {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(1.8rem, 2.4vw, 2.4rem);
  color: var(--text);
  line-height: 1.9;
  letter-spacing: 0.06em;
}
.ticket-intro-large p .em {
  color: var(--pink);
  font-weight: 700;
}

.seatmap-wrap {
  margin-bottom: 56px;
  padding: 24px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  text-align: center;
}
.seatmap-label {
  display: inline-block;
  font-family: 'Oswald', sans-serif;
  font-size: 1.4rem;
  letter-spacing: 0.45em;
  color: var(--pink);
  padding: 6px 22px;
  border: 1px solid var(--pink);
  border-radius: 999px;
  margin-bottom: 18px;
}
.seatmap-img-wrap {
  position: relative;
  display: inline-block;
  max-width: 100%;
}
.seatmap-wrap img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  background: #fff;
  border-radius: 8px;
  padding: 8px;
}
.seatmap-note {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.44rem;
  font-weight: 700;
  color: rgba(255,255,255,0.95);
  background: rgba(0,0,0,0.65);
  padding: 5px 12px;
  border-radius: 4px;
  letter-spacing: 0.05em;
  backdrop-filter: blur(4px);
  z-index: 2;
  white-space: nowrap;
}
.seatmap-caption {
  margin-top: 14px;
  font-size: 1.1rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
}

.ticket-intro {
  text-align: center;
  margin-bottom: 30px;
}
.ticket-intro p {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.6rem;
  color: var(--text);
  line-height: 2.0;
  letter-spacing: 0.04em;
}
.ticket-intro p .em {
  color: var(--pink);
  font-weight: 700;
}

.ticket-target {
  text-align: center;
  margin: 0 auto 44px;
  max-width: 760px;
  padding: 22px 28px;
  border: 1px solid var(--pink);
  border-radius: 8px;
  background: var(--pink-soft);
}
.ticket-target-label {
  display: inline-block;
  font-family: 'Oswald', sans-serif;
  font-size: 1.2rem;
  letter-spacing: 0.4em;
  color: var(--pink);
  text-transform: uppercase;
  padding: 3px 14px;
  border: 1px solid var(--pink);
  border-radius: 999px;
  margin-bottom: 12px;
}
.ticket-target-line {
  font-size: 1.35rem;
  color: var(--text);
  letter-spacing: 0.04em;
  line-height: 2.0;
}
.ticket-target-line strong {
  color: var(--pink);
  font-weight: 700;
}

.seat-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.seat-item {
  position: relative;
  background: var(--bg-2);
  border: 1px solid var(--line);
  padding: 24px 22px 24px 32px;
  transition: all 0.3s ease;
  overflow: hidden;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  min-height: 130px;
}
.seat-item::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 6px;
  background: var(--seat-color, var(--pink));
  box-shadow: 0 0 12px var(--seat-color, var(--pink));
}
.seat-item:hover {
  border-color: var(--seat-color, var(--pink));
  transform: translateX(3px);
  background: var(--bg-3);
}
.seat-name {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.03em;
  line-height: 1.4;
}
.seat-tag {
  display: inline-block;
  font-size: 1.0rem;
  color: var(--text-mute);
  letter-spacing: 0.12em;
}
.seat-price {
  font-family: 'Oswald', sans-serif;
  font-size: 3.0rem;
  color: var(--seat-color, var(--pink));
  letter-spacing: 0.04em;
  line-height: 1;
}
.seat-price-jpy {
  font-size: 1.1rem;
  letter-spacing: 0.2em;
  color: var(--text-mute);
  margin-left: 6px;
  font-family: 'Oswald', sans-serif;
}

.seat-royal    { --seat-color: var(--seat-royal); }
.seat-arena    { --seat-color: var(--seat-arena); }
.seat-photo    { --seat-color: var(--seat-photo); }
.seat-rollback { --seat-color: var(--seat-rollback); }
.seat-female   { --seat-color: var(--seat-female); }
.seat-wheel    { --seat-color: var(--seat-wheel); }
.seat-lower    { --seat-color: var(--seat-lower); }
.seat-seated   { --seat-color: var(--seat-seated); }
.seat-middle   { --seat-color: var(--seat-middle); }

@media (max-width: 880px) {
  .seat-list { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .seat-list { grid-template-columns: 1fr; }
}

/* ============ OSHISEKI ============ */
.oshi-section {
  background:
    radial-gradient(ellipse at 20% 30%, rgba(240,165,39,0.02) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 70%, rgba(240,165,39,0.02) 0%, transparent 55%),
    var(--bg);
  position: relative;
  overflow: hidden;
}
.oshi-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}
.oshi-inner { position: relative; z-index: 2; }

.oshi-tag {
  text-align: center;
  margin-bottom: 18px;
}
.oshi-tag span {
  display: inline-block;
  font-family: 'Oswald', sans-serif;
  font-size: 1.3rem;
  letter-spacing: 0.5em;
  color: #fff;
  background: var(--pink);
  padding: 8px 26px;
  border-radius: 999px;
  box-shadow: 0 8px 32px var(--pink-glow);
}
.oshi-concert-info {
  text-align: center;
  margin-bottom: 28px;
}
.oshi-concert-date {
  display: inline-block;
  font-family: 'Oswald', sans-serif;
  font-size: clamp(2.0rem, 3.2vw, 2.8rem);
  letter-spacing: 0.18em;
  color: var(--pink);
  padding: 6px 24px;
  background: var(--pink-soft);
  border: 1px solid var(--pink);
  border-radius: 999px;
  margin-bottom: 18px;
  text-shadow: 0 0 16px var(--pink-glow);
}
.oshi-concert-date-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin-bottom: 22px;
}
.oshi-concert-date-block .ocd-year {
  font-family: 'Oswald', sans-serif;
  font-size: 1.4rem;
  letter-spacing: 0.5em;
  color: var(--text-mute);
}
.oshi-concert-date-block .ocd-main {
  font-family: 'Anton', sans-serif;
  font-size: clamp(4.4rem, 8vw, 8.4rem);
  letter-spacing: -0.01em;
  word-spacing: -0.18em;
  color: var(--pink);
  line-height: 1;
  text-shadow:
    0 0 24px var(--pink-glow),
    0 0 60px rgba(240,165,39,0.05);
}
.oshi-concert-date-block .ocd-main .ocd-dow {
  font-size: 0.8em;
  margin-left: 0.25em;
  letter-spacing: 0.04em;
  vertical-align: baseline;
}
.oshi-concert-date-block .ocd-times {
  display: inline-flex;
  align-items: baseline;
  gap: 18px;
  margin-top: 4px;
  font-family: 'Oswald', sans-serif;
  letter-spacing: 0.18em;
}
.oshi-concert-date-block .ocd-open {
  font-size: 1.3rem;
  color: var(--text-mute);
}
.oshi-concert-date-block .ocd-start {
  font-size: clamp(2.0rem, 3.4vw, 3.0rem);
  color: var(--text);
  text-shadow: 0 0 12px var(--pink-glow);
}
@media (max-width: 560px) {
  .oshi-concert-date-block .ocd-times { flex-direction: column; gap: 8px; align-items: center; }
}
.oshi-concert-name {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(3.4rem, 6vw, 6.0rem);
  font-weight: 900;
  color: var(--text);
  letter-spacing: 0.08em;
  line-height: 1.2;
  margin-top: 4px;
  text-shadow: 0 4px 30px rgba(240,165,39,0.04);
}
.oshi-concert-name .quote {
  color: var(--pink);
  font-size: 0.85em;
  margin: 0 0.1em;
}
.oshi-concert-name .em {
  color: var(--pink);
  font-size: 1.15em;
  letter-spacing: 0.06em;
  text-shadow: 0 0 18px var(--pink-glow);
  margin-right: 0.06em;
}
@media (max-width: 640px) {
  .oshi-concert-name {
    font-size: 2.8rem;
  }
}  
.oshi-headline {
  text-align: center;
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(2.2rem, 4vw, 3.6rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
  letter-spacing: 0.05em;
  margin-bottom: 56px;
  opacity: 0.95;
}
.oshi-headline .accent {
  color: var(--pink);
  text-shadow: 0 0 30px var(--pink-glow);
}
.oshi-date {
  text-align: center;
  font-family: 'Oswald', sans-serif;
  font-size: 1.8rem;
  letter-spacing: 0.25em;
  color: var(--pink);
  margin-bottom: 56px;
}

.rules {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 56px;
  max-width: 880px;
  margin-left: auto;
  margin-right: auto;
}
.rule {
  background: linear-gradient(135deg, rgba(26,24,37,0.85) 0%, rgba(17,16,26,0.85) 100%);
  backdrop-filter: blur(12px);
  border: 1px solid var(--line-strong);
  padding: 36px 30px;
  position: relative;
  transition: all 0.4s ease;
  border-radius: 12px;
  overflow: hidden;
}
.rule::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(240,165,39,0.02) 0%, transparent 50%);
  pointer-events: none;
}
.rule:hover {
  border-color: var(--pink);
  transform: translateY(-5px);
  box-shadow: 0 20px 50px rgba(240,165,39,0.04);
}
.rule-num {
  font-family: 'Anton', sans-serif;
  font-size: 6.4rem;
  color: transparent;
  -webkit-text-stroke: 2px var(--pink);
  line-height: 1;
  margin-bottom: 12px;
  letter-spacing: 0.03em;
}
.rule-title {
  font-family: 'Noto Serif JP', serif;
  font-size: 2.0rem;
  font-weight: 900;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}
.rule-title .em {
  color: var(--pink);
  text-shadow: 0 0 20px var(--pink-glow);
}
.rule-desc {
  font-size: 1.35rem;
  color: var(--text-mute);
  line-height: 1.9;
  letter-spacing: 0.03em;
}

.oshi-seats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  max-width: 920px;
  margin: 0 auto;
}
.oshi-seat {
  background: var(--bg-2);
  border: 2px solid var(--line-strong);
  padding: 32px 22px 30px;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
  border-radius: 12px;
}
.oshi-seat:hover {
  border-color: var(--pink);
  transform: translateY(-4px);
  box-shadow: 0 15px 40px rgba(240,165,39,0.04);
}
.oshi-seat-name {
  font-family: 'Noto Serif JP', serif;
  font-size: 3.0rem;
  font-weight: 900;
  color: var(--pink);
  margin-bottom: 10px;
  letter-spacing: 0.05em;
  text-shadow: 0 0 16px var(--pink-glow);
}
.oshi-seat-detail {
  font-size: 1.1rem;
  color: var(--text-mute);
  letter-spacing: 0.06em;
  margin-bottom: 18px;
  min-height: 28px;
  line-height: 1.5;
}
/* DD席 / 車椅子席はdetailを使わずnoteのみ */
.oshi-seat-detail.empty { min-height: 0; margin-bottom: 0; }
.oshi-seat-price {
  font-family: 'Oswald', sans-serif;
  font-size: 3.2rem;
  color: var(--text);
  letter-spacing: 0.04em;
  line-height: 1;
}
.oshi-seat-price-jpy {
  font-size: 1.1rem;
  letter-spacing: 0.2em;
  color: var(--text-mute);
  margin-left: 4px;
  font-family: 'Oswald', sans-serif;
}
.oshi-seat-note {
  font-size: 1.15rem;
  color: var(--text-mute);
  line-height: 1.8;
  letter-spacing: 0.03em;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed rgba(255,255,255,0.12);
  text-align: center;
}

@media (max-width: 880px) {
  .rules, .oshi-seats { grid-template-columns: 1fr; }
}

/* ============ NOTICE ============ */
.ticket-notice-section {
  background: var(--bg);
  border-top: 1px solid var(--line);
}
.notice-box {
  background: var(--pink-soft);
  border: 1px solid rgba(240,165,39,0.04);
  border-radius: 8px;
  padding: 24px 28px;
  margin: 0 0 24px;
}
.notice-box-title {
  font-family: 'Oswald', sans-serif;
  font-size: 1.3rem;
  letter-spacing: 0.4em;
  color: var(--pink);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.notice-box ul { list-style: none; padding: 0; }
.notice-box li {
  font-size: 1.3rem;
  color: var(--text);
  line-height: 1.95;
  padding-left: 18px;
  position: relative;
  letter-spacing: 0.04em;
}
.notice-box li::before {
  content: '※';
  position: absolute;
  left: 0;
  color: var(--pink);
}

.notice-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
details.notice-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  transition: all 0.3s ease;
  overflow: hidden;
}
details.notice-card:hover { border-color: var(--line-strong); }
details.notice-card[open] { border-color: var(--pink); }
details.notice-card summary {
  padding: 20px 24px;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: 'Noto Serif JP', serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.04em;
  transition: color 0.25s;
}
details.notice-card summary:hover { color: var(--pink); }
details.notice-card summary::-webkit-details-marker { display: none; }
details.notice-card summary::after {
  content: '＋';
  font-family: 'Oswald', sans-serif;
  font-size: 2.2rem;
  color: var(--pink);
  transition: transform 0.3s ease;
}
details.notice-card[open] summary::after { content: '−'; }
details.notice-card .notice-body {
  padding: 0 24px 22px;
  font-size: 1.25rem;
  color: var(--text-mute);
  line-height: 1.95;
  letter-spacing: 0.03em;
}
details.notice-card .notice-body p { margin-bottom: 10px; }
details.notice-card .notice-body .subhead {
  font-weight: 700;
  color: var(--pink);
  margin-top: 14px;
  margin-bottom: 6px;
  letter-spacing: 0.1em;
  font-size: 1.2rem;
}
details.notice-card .notice-body ul { list-style: none; padding-left: 6px; }
details.notice-card .notice-body ul li {
  padding-left: 16px;
  position: relative;
  margin-bottom: 4px;
}
details.notice-card .notice-body ul li::before {
  content: '・';
  position: absolute;
  left: 0;
  color: var(--pink);
}
details.notice-card .notice-body ul.ok li::before { content: '◎'; color: var(--seat-seated); }
details.notice-card .notice-body ul.ng li::before { content: '×'; color: var(--pink); }

@media (max-width: 720px) {
  .notice-details { grid-template-columns: 1fr; }
}
.notice-foot-note {
  margin: 0 0 36px; 
  text-align: center;
  font-size: 1.15rem;
  color: rgba(255,255,255,0.9);
  letter-spacing: 0.05em;
  line-height: 1.7;
}
.notice-foot-note .nfn-link {
  color: var(--pink);
  border-bottom: 1px solid rgba(240,165,39,0.05);
  transition: all 0.25s;
}
.notice-foot-note .nfn-link:hover {
  color: var(--pink-2);
  border-color: var(--pink-2);
}

/* ============ CONTACT ============ */
.contact-section { background: var(--bg-2); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 920px;
  margin: 0 auto;
}
.contact-card {
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 32px 28px;
  border-radius: 12px;
  transition: all 0.3s ease;
  position: relative;
}
.contact-card::before {
  content: '';
  position: absolute;
  top: 0; left: 24px; right: 24px;
  height: 3px;
  background: var(--pink);
  border-radius: 0 0 4px 4px;
}
.contact-card:hover { border-color: var(--pink); }
.contact-card-tag {
  display: inline-block;
  font-family: 'Oswald', sans-serif;
  font-size: 1.2rem;
  letter-spacing: 0.4em;
  color: var(--pink);
  text-transform: uppercase;
  padding: 3px 14px;
  border: 1px solid var(--pink);
  border-radius: 999px;
  margin-bottom: 14px;
}
.contact-card-title {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}
.contact-card-body {
  font-size: 1.3rem;
  color: var(--text-mute);
  line-height: 1.95;
  letter-spacing: 0.04em;
}
.contact-card-body strong {
  color: var(--text);
  font-weight: 700;
}
.contact-card-body a {
  color: var(--pink);
  border-bottom: 1px solid rgba(240,165,39,0.05);
  transition: all 0.25s;
}
.contact-card-body a:hover {
  color: var(--pink-2);
  border-color: var(--pink-2);
}
@media (max-width: 720px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* ============ VENUE ============ */
.venue-section { background: var(--bg); }
.venue-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 0;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
.venue-info {
  padding: 52px 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.venue-tag {
  display: inline-block;
  font-family: 'Oswald', sans-serif;
  font-size: 1.2rem;
  letter-spacing: 0.4em;
  color: var(--pink);
  text-transform: uppercase;
  padding: 3px 14px;
  border: 1px solid var(--pink);
  border-radius: 999px;
  margin-bottom: 18px;
  align-self: flex-start;
}
.venue-name {
  font-family: 'Noto Serif JP', serif;
  font-size: 3.6rem;
  font-weight: 900;
  color: var(--text);
  margin-bottom: 4px;
  letter-spacing: 0.06em;
}
.venue-name-en {
  font-family: 'Oswald', sans-serif;
  font-size: 1.8rem;
  letter-spacing: 0.3em;
  color: var(--pink);
  margin-bottom: 26px;
}
.venue-addr {
  font-size: 1.35rem;
  color: var(--text-mute);
  line-height: 1.9;
  letter-spacing: 0.05em;
  margin-bottom: 26px;
}
.venue-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: var(--pink);
  color: #fff;
  font-family: 'Oswald', sans-serif;
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  border-radius: 999px;
  transition: all 0.3s ease;
  align-self: flex-start;
  box-shadow: 0 6px 20px rgba(240,165,39,0.05);
}
.venue-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(240,165,39,0.015);
}
.venue-map iframe {
  width: 100%;
  height: 100%;
  min-height: 380px;
  border: 0;
  display: block;
}
@media (max-width: 880px) {
  .venue-grid { grid-template-columns: 1fr; }
  .venue-info { padding: 36px 28px; }
}

/* ============ MEMBERS ============ */
.members-section {
  background:
    radial-gradient(ellipse at 50% 0%, rgba(240,165,39,0.02) 0%, transparent 50%),
    var(--bg-2);
  border-top: 1px solid var(--line);
}
.members-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 16px;
}
.members-notice {
  margin-top: 40px;
  padding: 20px 24px;
  background: rgba(240,165,39,0.04);
  border-left: 3px solid var(--pink);
  border-radius: 4px;
}
.members-notice p {
  font-size: 1.15rem;
  color: var(--text-mute);
  line-height: 1.85;
  letter-spacing: 0.03em;
  margin-bottom: 4px;
}
.members-notice p:last-child { margin-bottom: 0; }
.member-card {
  background: var(--bg-3);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: all 0.35s ease;
  border-radius: 10px;
}
.member-card:hover {
  border-color: var(--pink);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(240,165,39,0.04);
}
.member-photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: linear-gradient(135deg, var(--bg-2), var(--bg));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}
.member-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 2;
}
.member-info {
  padding: 12px 10px 14px;
  text-align: center;
}
.member-name {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}
.member-name-en {
  font-family: 'Oswald', sans-serif;
  font-size: 1.0rem;
  letter-spacing: 0.25em;
  color: var(--text-dim);
  text-transform: uppercase;
}

/* ============ GOODS ============ */
.goods-section {
  background:
    radial-gradient(ellipse at 50% 50%, rgba(240,165,39,0.14) 0%, transparent 50%),
    var(--bg);
  text-align: center;
  padding: 120px 24px;
}
.goods-coming {
  display: inline-block;
  font-family: 'Anton', sans-serif;
  font-size: clamp(5.6rem, 11vw, 12.0rem);
  color: transparent;
  -webkit-text-stroke: 2px var(--pink);
  letter-spacing: 0.05em;
  line-height: 1.1;
  margin-bottom: 12px;
}
.goods-soon {
  font-family: 'Anton', sans-serif;
  font-size: clamp(4.0rem, 8vw, 8.0rem);
  color: var(--pink);
  letter-spacing: 0.05em;
  margin-bottom: 26px;
  text-shadow: 0 0 30px var(--pink-glow);
}
.goods-sub {
  font-size: 1.3rem;
  color: var(--text-mute);
  letter-spacing: 0.2em;
}

/* ============ INFO ============ */
.info-section {
  background: var(--bg-2);
  border-top: 1px solid var(--line);
}
.info-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
.info-key {
  padding: 22px 24px;
  background: var(--bg-3);
  font-family: 'Oswald', sans-serif;
  font-size: 1.3rem;
  letter-spacing: 0.35em;
  color: var(--pink);
  text-transform: uppercase;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
}
.info-val {
  padding: 22px 26px;
  font-size: 1.35rem;
  color: var(--text);
  border-bottom: 1px solid var(--line);
  line-height: 1.9;
  letter-spacing: 0.04em;
}
.info-val small {
  display: block;
  color: var(--text-mute);
  font-size: 1.15rem;
  margin-top: 4px;
  letter-spacing: 0.06em;
}
.info-val-title .title-support {
  font-family: 'Oswald', sans-serif;
  font-size: 1.2rem;
  letter-spacing: 0.3em;
  color: var(--pink);
  margin-bottom: 6px;
}
.info-val-title .title-main {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.04em;
}
.info-grid > :nth-last-child(-n+2) { border-bottom: 0; }
@media (max-width: 720px) {
  .info-grid { grid-template-columns: 1fr; }
  .info-key { padding: 14px 20px; }
}

/* ============ FOOTER ============ */
footer {
  background: #050409;
  padding: 56px 24px 40px;
  text-align: center;
  border-top: 2px solid var(--pink);
  position: relative;
}
footer::before {
  content: '';
  position: absolute;
  top: -2px; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--pink), transparent);
  background-size: 200% 100%;
  animation: slideGrad 4s linear infinite;
}
.footer-support {
  font-family: 'Oswald', sans-serif;
  font-size: 1.2rem;
  letter-spacing: 0.4em;
  color: var(--pink);
  margin-bottom: 8px;
}
.footer-title {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.6rem;
  color: var(--text);
  letter-spacing: 0.08em;
  margin-bottom: 28px;
  font-weight: 700;
}
.footer-credits {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin-bottom: 28px;
  font-size: 1.1rem;
  color: var(--text-mute);
  letter-spacing: 0.12em;
}
.footer-credits span strong {
  color: var(--pink);
  font-weight: 700;
  margin-right: 6px;
  font-family: 'Oswald', sans-serif;
  letter-spacing: 0.3em;
  font-size: 1.0rem;
}
.footer-copy {
  font-family: 'Oswald', sans-serif;
  font-size: 1.1rem;
  color: var(--text-dim);
  letter-spacing: 0.3em;
}

/* ============ FADE-IN ============ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.9s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ BACK TO TOP BUTTON ============ */
.pagetop {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.pagetop.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* aタグをフレックスコンテナにして、背景をtopbar-titleと同じ色に指定 */
.pagetop a {
    display: flex; /* Flexboxで中央配置 */
    justify-content: center;
    align-items: center;
    width: 54px;
    height: 54px;
    background-color: var(--pink); /* 背景色：topbar-titleと同じ色 */
    border-radius: 50%;
    text-decoration: none;
    box-shadow: 0 4px 16px rgba(240, 165, 39, 0.4); /* 影の色もテーマに合わせる */
    transition: all 0.3s ease;
}

.pagetop a:hover {
    background-color: var(--pink-2); /* ホバー時は少し明るいテーマカラーに */
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(240, 165, 39, 0.6);
}

/* Flexboxの子要素として矢印を描画し、黒色に指定 */
.pagetop a::before {
    content: "";
    display: block;
    width: 12px;
    height: 12px;
    border-top: 2px solid #fff;
    border-right: 2px solid #fff;
    /* -45度回転させ、視覚的な中心を合わせるため少し下にずらす */
    transform: translateY(3px) rotate(-45deg); 
}