/*
  KFBまつり 共通スタイル
  デザインコンセプト：ドデ祭風・原色（黄・シアン・マゼンタ）・太い黒枠・濃い影
*/

/* ========== 変数（カラー・フォント） ========== */
:root {
  --kfb-yellow: #FFD700;
  --kfb-cyan: #00CED1;
  --kfb-magenta: #FF1493;
  --kfb-black: #1a1a1a;
  --kfb-border: 4px solid var(--kfb-black);
  --kfb-shadow: 6px 6px 0 var(--kfb-black);
  --font-pop: "M PLUS Rounded 1c", sans-serif;
  --font-gothic: "M PLUS 1p", sans-serif;
}

/* ========== ベース ========== */
body {
  margin: 0;
  padding: 0;
  font-family: var(--font-gothic);
  color: var(--kfb-black);
  overflow-x: hidden;
}

/* スクリーンリーダー用テキストを非表示（アクセシビリティ） */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* アンカー用（#content など）レイアウトに影響しない位置指定 */
.anchor-point {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

/* ========== ヘッダー ========== */
.site-header {
  background: linear-gradient(135deg, var(--kfb-yellow) 0%, var(--kfb-magenta) 100%);
  border-bottom: var(--kfb-border);
  box-shadow: var(--kfb-shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-logo {
  text-decoration: none;
  color: var(--kfb-black);
  font-family: var(--font-pop);
  font-weight: 800;
  font-size: 1.5rem;
  padding: 0.25rem 0.5rem;
  background: white;
  border: var(--kfb-border);
  box-shadow: var(--kfb-shadow);
}

.site-logo:hover {
  transform: scale(1.02);
}

.site-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1rem;
}

.site-nav-list a {
  color: var(--kfb-black);
  text-decoration: none;
  font-weight: 700;
  padding: 0.5rem 1rem;
  background: white;
  border: var(--kfb-border);
  box-shadow: 4px 4px 0 var(--kfb-black);
}

.site-nav-list a:hover {
  background: var(--kfb-cyan);
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--kfb-black);
}

/* ========== カラフルヘッダー（スペースなし・ハンバーガーのみ右上に重ねて表示） ========== */
.header-colorful {
  position: fixed;
  top: 0;
  right: 0;
  left: auto;
  width: auto;
  height: auto;
  padding: 0;
  margin: 0;
  background: transparent;
  border: none;
  box-shadow: none;
  z-index: 100;
}

/* ヘッダー用プレースホルダーは高さゼロ（固定でレイアウトに参加しない） */
#header-placeholder {
  display: block;
  height: 0;
  overflow: visible;
}

.header-colorful-inner {
  position: relative;
  z-index: 1;
  justify-content: flex-end;
  padding: 1rem 1.25rem;
  width: auto;
}

.header-colorful-logo {
  display: none !important; /* 常に非表示。開いたメニュー内で表示 */
}

.header-colorful-logo.header-colorful-logo-in-menu {
  display: inline-flex !important;
}

.header-colorful-logo {
  background: #fff !important;
  border: var(--kfb-border) !important;
  box-shadow: 4px 4px 0 var(--kfb-black) !important;
  padding: 0.35rem 0.6rem !important;
  align-items: center;
  border-radius: 8px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.header-colorful-logo:hover {
  transform: scale(1.03);
  box-shadow: 6px 6px 0 var(--kfb-black) !important;
}

.header-colorful-logo-img {
  display: block;
  height: 2.25rem;
  width: auto;
  max-height: 48px;
  object-fit: contain;
}

/* ナビ：各項目をはっきりした色で */
.header-colorful-nav-list {
  gap: 0.5rem;
}

.header-nav-link {
  display: inline-block;
  padding: 0.5rem 1rem;
  font-weight: 800;
  font-family: var(--font-pop);
  font-size: 1rem;
  text-decoration: none;
  color: var(--kfb-black) !important;
  border: 3px solid var(--kfb-black);
  border-radius: 8px;
  box-shadow: 3px 3px 0 var(--kfb-black);
  transition: transform 0.15s, box-shadow 0.15s;
}

.header-nav-link--top {
  background: var(--kfb-yellow);
}

.header-nav-link--news {
  background: var(--kfb-cyan);
}

.header-nav-link--focus {
  background: var(--kfb-magenta);
  color: #fff !important;
}

.header-nav-link--focus:hover {
  background: #e0118a;
  color: #fff !important;
}

.header-nav-link:hover {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--kfb-black);
}

/* ハンバーガーボタン：全画面で右上に表示（ドデ祭風） */
.site-menu-btn.header-colorful-menu-btn {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px 12px;
  background: var(--kfb-magenta);
  border: var(--kfb-border);
  box-shadow: 4px 4px 0 var(--kfb-black);
  cursor: pointer;
  border-radius: 8px;
}

.header-colorful-menu-btn .menu-bar {
  background: #fff;
  width: 22px;
  height: 3px;
  border-radius: 2px;
}

/* スマホ：ハンバーガーボタンを小さく */
@media (max-width: 768px) {
  .header-colorful-inner {
    padding: 0.6rem 0.85rem;
  }

  .site-menu-btn.header-colorful-menu-btn {
    padding: 6px 8px;
    gap: 4px;
  }

  .header-colorful-menu-btn .menu-bar {
    width: 18px;
    height: 2.5px;
    border-radius: 1px;
  }
}

/* 開いたメニュー：白＋すりガラス風オーバーレイ */
.header-colorful-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 4.5rem 1.25rem 1.5rem;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  z-index: 99;
  max-height: 100vh;
  overflow-y: auto;
}

.header-colorful-nav.is-open {
  display: block;
  width: 100%;
}

.header-menu-close-btn {
  display: block;
  width: 100%;
  max-width: 200px;
  margin: 0 auto 1rem;
  padding: 0.6rem 1rem;
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-gothic), sans-serif;
  color: var(--kfb-black);
  background: #fff;
  border: 3px solid var(--kfb-black);
  border-radius: 8px;
  box-shadow: 3px 3px 0 var(--kfb-black);
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}

.header-menu-close-btn:hover {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--kfb-black);
}

.header-colorful-nav .header-colorful-nav-list {
  flex-direction: column;
  gap: 0.35rem;
  padding: 0;
}

.header-colorful-nav-list .header-nav-link {
  display: block;
  text-align: center;
  padding: 0.75rem 1rem;
  border: none;
  box-shadow: none;
}

/* 開いたメニュー内：トップ＝水色・白文字、ニュース＝ピンク・白文字、注目＝黄系・白文字 */
.header-colorful-nav .header-nav-link--top {
  background: #5eb8e6;
  color: #fff !important;
}

.header-colorful-nav .header-nav-link--top:hover {
  background: #4aa8d8;
  color: #fff !important;
}

.header-colorful-nav .header-nav-link--news {
  background: #ff9ebb;
  color: #fff !important;
}

.header-colorful-nav .header-nav-link--news:hover {
  background: #ff8aad;
  color: #fff !important;
}

.header-colorful-nav .header-nav-link--focus {
  background: #ffb347;
  color: #fff !important;
}

.header-colorful-nav .header-nav-link--focus:hover {
  background: #f0a035;
  color: #fff !important;
}

@media (max-width: 768px) {
  .header-colorful-nav-list .header-nav-link {
    padding: 0.85rem 1rem;
  }
}

/* ========== オープニングオーバーレイ（TUY採用サイト風） ========== */
.opening-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  transition: opacity 0.8s ease, visibility 0.8s ease;
  pointer-events: auto;
  overflow: hidden;
}

.opening-skip-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 10000;
  padding: 0.5rem 1.25rem;
  font-family: var(--font-pop);
  font-size: clamp(0.9rem, 2vw, 1rem);
  font-weight: 700;
  color: var(--kfb-black);
  background: rgba(255, 255, 255, 0.9);
  border: 2px solid var(--kfb-black);
  border-radius: 50px;
  box-shadow: 2px 2px 0 var(--kfb-black);
  cursor: pointer;
  transition: all 0.2s ease;
  backdrop-filter: blur(4px);
}

.opening-skip-btn:hover {
  background: var(--kfb-yellow);
  transform: translateY(-2px);
  box-shadow: 4px 4px 0 var(--kfb-black);
}

.opening-skip-btn:active {
  transform: translateY(0);
  box-shadow: 2px 2px 0 var(--kfb-black);
}

/* スマホ：スキップボタン */
@media (max-width: 768px) {
  .opening-skip-btn {
    top: 1rem;
    right: 1rem;
    padding: 0.4rem 1rem;
    font-size: 0.85rem;
  }
}

.opening-overlay.is-hidden {
  opacity: 0;
  visibility: hidden;
}

.opening-falling-items {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.opening-falling-item {
  position: absolute;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  top: -150px;
  animation: falling 2s ease-in forwards;
}

.opening-falling-item--cyan {
  left: 10%;
  background: #00CED1;
  animation-delay: 0s;
}

.opening-falling-item--pink {
  left: 25%;
  background: #FF1493;
  animation-delay: 0.2s;
}

.opening-falling-item--yellow-green {
  left: 40%;
  background: #ADFF2F;
  animation-delay: 0.4s;
}

.opening-falling-item--yellow {
  left: 55%;
  background: #FFD700;
  animation-delay: 0.6s;
}

.opening-falling-item--orange {
  left: 70%;
  background: #FF8C00;
  animation-delay: 0.8s;
}

.opening-falling-item--green {
  left: 85%;
  background: #32CD32;
  animation-delay: 1s;
}

@keyframes falling {
  0% {
    top: -150px;
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    top: 100vh;
    transform: translateY(0) rotate(360deg);
    opacity: 0.3;
  }
}

.opening-logo {
  max-width: min(280px, 70vw);
  width: auto;
  height: auto;
  opacity: 0;
  transform: translateY(50px);
  animation: opening-logo-rise 1.2s cubic-bezier(0.34, 1.56, 0.64, 1) 1.2s forwards;
  position: relative;
  z-index: 10;
}

@keyframes opening-logo-rise {
  0% {
    opacity: 0;
    transform: translateY(50px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* メインコンテンツ：初期は非表示 → オープニング後に表示 */
.main-content-wrap {
  opacity: 0;
  transition: opacity 0.8s ease 0.2s;
}

.main-content-wrap.is-visible {
  opacity: 1;
}

/* ========== ヒーローセクション（パステル縦ストライプ背景） ========== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
  overflow-y: auto;
  /* パステル縦ストライプ：水色・ラベンダー・ピンク・ピーチ・黄・ミント・水色 */
  background-color: #e6f4ff;
  background-image: repeating-linear-gradient(
    90deg,
    #e6f4ff 0px,
    #e6f4ff 40px,
    #e8e0f2 40px,
    #e8e0f2 80px,
    #ffdde8 80px,
    #ffdde8 120px,
    #ffddc8 120px,
    #ffddc8 160px,
    #fff4c8 160px,
    #fff4c8 200px,
    #d8f0e8 200px,
    #d8f0e8 240px,
    #e6f4ff 240px,
    #e6f4ff 280px
  );
  background-position: 0 0;
  background-repeat: repeat;
  background-size: 280px 100%;
  border-bottom: var(--kfb-border);
  box-shadow: 0 8px 0 var(--kfb-black);
}

/* ヒーローちりばめ（福島キャラなど） */
.hero-scatter {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero-scatter-item {
  position: absolute;
  display: block;
  opacity: 0.85;
}

.hero-scatter-item img {
  display: block;
  width: auto;
  height: auto;
  max-width: 12vw;
  max-height: 12vh;
  object-fit: contain;
}

/* ふわふわ・ゆらゆら用キーフレーム（親が translate、子が rotate） */
@keyframes hero-scatter-float-a {

  0%,
  100% {
    transform: translate(0, 0);
  }

  50% {
    transform: translate(6px, -14px);
  }
}

@keyframes hero-scatter-float-b {

  0%,
  100% {
    transform: translate(0, 0);
  }

  50% {
    transform: translate(-8px, 10px);
  }
}

@keyframes hero-scatter-float-c {

  0%,
  100% {
    transform: translate(0, 0);
  }

  33% {
    transform: translate(5px, -8px);
  }

  66% {
    transform: translate(-5px, 5px);
  }
}

@keyframes hero-scatter-float-d {

  0%,
  100% {
    transform: translate(0, 0);
  }

  50% {
    transform: translate(-6px, -10px);
  }
}

@keyframes hero-scatter-float-e {

  0%,
  100% {
    transform: translate(0, 0);
  }

  25% {
    transform: translate(4px, 6px);
  }

  75% {
    transform: translate(-4px, -6px);
  }
}

.hero-scatter-1 {
  top: 8%;
  left: 5%;
  animation: hero-scatter-float-a 4s ease-in-out infinite;
}

.hero-scatter-1 img {
  transform: rotate(-15deg);
}

.hero-scatter-2 {
  top: 15%;
  right: 8%;
  animation: hero-scatter-float-b 5s ease-in-out infinite 0.5s;
}

.hero-scatter-2 img {
  transform: rotate(8deg);
  max-width: 10vw;
  max-height: 10vh;
}

.hero-scatter-3 {
  top: 40%;
  right: 2%;
  animation: hero-scatter-float-c 4.5s ease-in-out infinite 1s;
}

.hero-scatter-3 img {
  transform: rotate(-8deg);
  max-width: 9vw;
  max-height: 9vh;
}

.hero-scatter-4 {
  top: 55%;
  right: 3%;
  animation: hero-scatter-float-d 5.5s ease-in-out infinite 0.2s;
}

.hero-scatter-4 img {
  transform: rotate(12deg);
  max-width: 11vw;
  max-height: 11vh;
}

.hero-scatter-5 {
  bottom: 0;
  left: 10%;
  animation: hero-scatter-float-e 4s ease-in-out infinite 1.5s;
}

.hero-scatter-5 img {
  transform: rotate(5deg);
  max-width: 10vw;
  max-height: 10vh;
}

.hero-scatter-6 {
  bottom: 3%;
  right: 12%;
  animation: hero-scatter-float-a 5s ease-in-out infinite 0.8s;
}

.hero-scatter-6 img {
  transform: rotate(-10deg);
}

.hero-scatter-7 {
  top: 25%;
  left: 5%;
  opacity: 0.7;
  animation: hero-scatter-float-b 4.2s ease-in-out infinite 0.3s;
}

.hero-scatter-7 img {
  transform: rotate(-5deg);
  max-width: 8vw;
  max-height: 8vh;
}

.hero-scatter-8 {
  top: 45%;
  left: 10%;
  opacity: 0.75;
  animation: hero-scatter-float-c 4.8s ease-in-out infinite 1.2s;
}

.hero-scatter-8 img {
  transform: rotate(15deg);
  max-width: 9vw;
  max-height: 9vh;
}

.hero-scatter-9 {
  top: 35%;
  right: 22%;
  opacity: 0.7;
  animation: hero-scatter-float-d 5.2s ease-in-out infinite 0.6s;
}

.hero-scatter-9 img {
  transform: rotate(-12deg);
  max-width: 8vw;
  max-height: 8vh;
}

#confetti-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.5rem 2rem 2rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease 0.3s, transform 0.7s ease 0.3s;
}

.main-content-wrap.is-visible .hero-inner {
  opacity: 1;
  transform: translateY(0);
}

/* 左：キャッチ・ロゴ・CTA（愛和会風） */
.hero-content {
  width: 100%;
  text-align: center;
  position: relative;
  z-index: 2;
  padding: 1.25rem 1.25rem 1rem;
  background: rgba(255, 255, 255, 0.6);
  margin: 0;
}

/* 入場無料バナー */
.hero-free-banner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 1rem 0 0;
  width: 100%;
}

.hero-free-banner-text {
  font-family: var(--font-pop), sans-serif;
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--kfb-magenta) 0%, #ff1493 100%);
  padding: 0.5rem 1.25rem;
  border: 2px solid var(--kfb-black);
  border-radius: 50px;
  box-shadow: 0 4px 0 var(--kfb-black), 0 0 0 2px rgba(255, 255, 255, 0.3) inset;
  white-space: nowrap;
  letter-spacing: 0.08em;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
  position: relative;
  overflow: hidden;
}

.hero-free-banner-text::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: shine 3s infinite;
}

@keyframes shine {
  0% { left: -100%; }
  50%, 100% { left: 100%; }
}

.hero-catch {
  font-family: var(--font-pop);
  font-weight: 800;
  font-size: clamp(0.95rem, 2.5vw, 1.15rem);
  margin: 0 0 0.75rem;
  letter-spacing: 0.05em;
  display: inline-block;
  padding: 0.5rem 1.2rem;
  background: linear-gradient(135deg, var(--kfb-yellow) 0%, var(--kfb-magenta) 50%, var(--kfb-cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
  border-radius: 20px;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(4px);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.hero-catch::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 20px;
  padding: 2px;
  background: linear-gradient(135deg, var(--kfb-yellow) 0%, var(--kfb-magenta) 50%, var(--kfb-cyan) 100%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  z-index: -1;
  opacity: 0.6;
}

.hero-logo {
  margin-bottom: 1.5rem;
}

.hero-date-banner {
  width: min(520px, 90%);
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  border-radius: 14px;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.18);
  background: rgba(255, 255, 255, 0.9);
  border: var(--kfb-border);
  text-align: center;
}

.hero-date-banner-date {
  font-family: var(--font-pop);
  font-weight: 800;
  font-size: clamp(1.25rem, 3.5vw, 1.6rem);
  color: var(--kfb-black);
  margin: 0 0 0.5rem;
  letter-spacing: 0.02em;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--kfb-black);
}

.hero-date-banner-place {
  font-weight: 700;
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--kfb-black);
  margin: 0 0 0.5rem;
}

.hero-date-banner-note {
  font-size: 0.85rem;
  color: #666;
  margin: 0;
}

/* 右：縦長写真スライダー（横スクロールカード形式） */
.hero-slider {
  position: relative;
  width: 100%;
  height: auto;
  max-height: none;
  border: none;
  border-radius: 0;
  box-shadow: none;
  padding: 1rem 0 1.5rem;
  background: transparent;
}

.hero-slider-track {
  position: relative;
  width: 100%;
  height: auto;
}

.hero-slider-track--scroll {
  display: flex;
  flex-direction: row;
  gap: 1rem;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding: 0 1.25rem;
  scrollbar-width: none;
}

.hero-slider-track--scroll::-webkit-scrollbar {
  display: none;
}

.hero-slider-item {
  position: relative;
  flex: 0 0 auto;
  width: min(320px, 28vw);
  height: 450px;
  border-radius: 24px;
  overflow: hidden;
  opacity: 1;
  pointer-events: auto;
  scroll-snap-align: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.08);
}

.hero-slider-item--current {
  opacity: 1;
  pointer-events: auto;
}

.hero-slider-badge {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 2;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 800;
  font-family: var(--font-pop), sans-serif;
  color: #fff;
  background: var(--kfb-magenta);
  border: 2px solid var(--kfb-black);
  border-radius: 4px;
  box-shadow: 2px 2px 0 var(--kfb-black);
  line-height: 1.2;
  white-space: nowrap;
}

.hero-slider-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  object-position: center center;
}

.hero-slider-video-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  padding-bottom: 0;
  overflow: hidden;
}

.hero-slider-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.hero-slider-dots {
  display: none;
}

.hero-slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid white;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: background 0.2s;
}

.hero-slider-dot:hover {
  background: rgba(255, 255, 255, 0.7);
}

.hero-slider-dot.is-active {
  background: white;
}

/* スライダーボタン（前へ/次へ） */
.hero-slider-btn {
  position: absolute;
  top: 95%;
  transform: translateY(-50%);
  z-index: 10;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 3px solid var(--kfb-black);
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 0 var(--kfb-black), 0 0 0 2px rgba(255, 255, 255, 0.3) inset;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 900;
  color: var(--kfb-black);
  transition: all 0.2s ease;
  padding: 0;
  line-height: 1;
}

.hero-slider-btn:hover {
  background: var(--kfb-yellow);
  transform: translateY(-50%) scale(1.1);
  box-shadow: 0 6px 0 var(--kfb-black), 0 0 0 2px rgba(255, 255, 255, 0.3) inset;
}

.hero-slider-btn:active {
  transform: translateY(-50%) scale(0.95);
  box-shadow: 0 2px 0 var(--kfb-black), 0 0 0 2px rgba(255, 255, 255, 0.3) inset;
}

.hero-slider-btn--prev {
  left: 1rem;
}

.hero-slider-btn--next {
  right: 1rem;
}

.hero-slider-btn span {
  display: block;
  line-height: 1;
}

/* スマホ：愛和会風レイアウト（縦書きキャッチ＋横スクロール縦長カード） */
@media (max-width: 768px) {
  .hero-section {
    /* スマホも同じパステルストライプ */
    background-color: #e6f4ff;
    background-image: repeating-linear-gradient(
      90deg,
      #e6f4ff 0px,
      #e6f4ff 32px,
      #e8e0f2 32px,
      #e8e0f2 64px,
      #ffdde8 64px,
      #ffdde8 96px,
      #ffddc8 96px,
      #ffddc8 128px,
      #fff4c8 128px,
      #fff4c8 160px,
      #d8f0e8 160px,
      #d8f0e8 192px,
      #e6f4ff 192px,
      #e6f4ff 224px
    );
    background-size: 224px 100%;
  }

  /* ちりばめデコを写真より前面に表示 */
  .hero-scatter {
    z-index: 10;
  }

  .hero-inner {
    flex-direction: column;
    align-items: center;
    gap: 0;
    padding: 1rem 0 1.5rem;
    max-width: 100%;
  }

  .hero-content {
    width: 100%;
    padding: 1.25rem 1.25rem 1rem;
    background: rgba(255, 255, 255, 0.6);
    margin: 0;
    position: relative;
    overflow: visible;
  }

  .hero-free-banner {
    width: 100%;
    padding: 0.5rem 0;
    margin: 1rem 0 0;
  }

  .hero-free-banner-text {
    font-size: clamp(1rem, 5vw, 1.3rem);
    padding: 0.4rem 1rem;
  }

  .hero-catch {
    margin-top: 0;
    margin-bottom: 0.5rem;
  }

  .hero-content .hero-logo {
    margin-bottom: 1rem;
  }

  .hero-content .hero-logo-img {
    max-width: 200px;
  }

  .hero-date-banner {
    width: 100%;
    padding: 1rem 1.25rem;
    border-radius: 16px;
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.16);
  }

  .hero-date-banner-date {
    font-size: clamp(1.1rem, 4.5vw, 1.4rem);
  }

  /* スマホ：横スクロールの縦長カード（角丸・影・はみ出し表示） */
  .hero-slider .hero-slider-item {
    width: 72vw;
    max-width: 280px;
    height: 380px;
  }

  .hero-slider-dots {
    display: none;
  }

  .hero-slider-btn {
    display: none;
  }
}

.hero-logo img {
  display: block;
  margin: 0 auto;
  max-width: min(320px, 85vw);
  width: auto;
  height: auto;
  filter: drop-shadow(4px 4px 0 white) drop-shadow(6px 6px 0 var(--kfb-black));
}

.hero-title {
  font-family: var(--font-pop);
  font-weight: 800;
  font-size: clamp(2.5rem, 8vw, 5rem);
  color: var(--kfb-black);
  margin: 0;
  text-shadow: 4px 4px 0 white, 6px 6px 0 var(--kfb-black);
  letter-spacing: 0.05em;
}

.hero-subtitle {
  font-size: clamp(1rem, 3vw, 1.5rem);
  font-weight: 700;
  margin: 0.5rem 0 0;
  color: var(--kfb-black);
  text-shadow: 2px 2px 0 white;
}

.hero-cta-btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  font-size: 1.25rem;
  font-weight: 800;
  font-family: var(--font-pop);
  color: var(--kfb-black);
  background: white;
  border: var(--kfb-border);
  box-shadow: var(--kfb-shadow);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.hero-cta-btn:hover {
  transform: translate(4px, 4px);
  box-shadow: 2px 2px 0 var(--kfb-black);
}

.hero-cta-btn:active {
  transform: translate(6px, 6px);
  box-shadow: 0 0 0 var(--kfb-black);
}

/* ========== コンテンツセクション ========== */
.content-section {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease 0.5s, transform 0.6s ease 0.5s;
}

.main-content-wrap.is-visible .content-section {
  opacity: 1;
  transform: translateY(0);
}

.section-title {
  font-family: var(--font-pop);
  font-weight: 800;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  color: #fff;
  margin: 0 0 2rem;
  padding: 0.5rem 1rem;
  background: var(--kfb-magenta);
  border: var(--kfb-border);
  box-shadow: var(--kfb-shadow);
  display: inline-block;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* マンガのコマ風カード（太い枠線） */
.manga-card {
  background: white;
  border: var(--kfb-border);
  box-shadow: var(--kfb-shadow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.manga-card:hover {
  transform: translate(4px, 4px);
  box-shadow: 2px 2px 0 var(--kfb-black);
}

.manga-card-inner {
  padding: 1.5rem;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card-label {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--kfb-magenta);
  margin: 0 0 0.5rem;
  letter-spacing: 0.1em;
}

.card-title {
  font-family: var(--font-pop);
  font-weight: 800;
  font-size: 1.25rem;
  margin: 0 0 0.75rem;
  color: var(--kfb-black);
  line-height: 1.3;
}

.card-text {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  line-height: 1.6;
  flex: 1;
}

.card-date {
  font-size: 0.85rem;
  color: #666;
}

.card-cta {
  display: inline-block;
  margin-top: auto;
  padding: 0.5rem 1rem;
  font-weight: 700;
  background: var(--kfb-yellow);
  border: var(--kfb-border);
  box-shadow: 4px 4px 0 var(--kfb-black);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  text-decoration: none;
  color: var(--kfb-black);
  text-align: center;
}

.card-cta:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--kfb-black);
}

/* ========== フッター ========== */
.site-footer {
  background: var(--kfb-black);
  color: white;
  border-top: var(--kfb-border);
  margin-top: 3rem;
}

.site-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  text-align: center;
}

.site-footer-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.site-footer-logo {
  display: inline-block;
  text-decoration: none;
  margin: 0;
}

.site-footer-logo-img {
  display: block;
  height: 2.5rem;
  width: auto;
  max-height: 50px;
  object-fit: contain;
  vertical-align: middle;
}

.site-footer-copy {
  font-size: 0.875rem;
  margin: 0 0 1rem;
  opacity: 0.9;
}

.site-footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

.site-footer-links a {
  color: white;
  text-decoration: underline;
  font-size: 0.875rem;
}

.site-footer-links a:hover {
  color: var(--kfb-yellow);
}

/* ========== 流れる文字（Infinite Marquee） ========== */
.marquee-bar {
  position: sticky;
  bottom: 0;
  z-index: 50;
  width: 100%;
  /* グラデーションは使わず、シンプルな黄色の帯にする */
  background-color: var(--kfb-yellow);
  border-top: var(--kfb-border);
  border-bottom: var(--kfb-border);
  overflow: hidden;
  height: 40px;
  display: flex;
  align-items: center;
}

.marquee-inner {
  display: flex;
  white-space: nowrap;
  animation: marquee-left-to-right 20s linear infinite;
}

.marquee-text {
  display: inline-block;
  padding: 0 2rem;
  font-family: var(--font-pop);
  font-weight: 800;
  /* 太字 */
  font-style: italic;
  /* イタリック体 */
  font-size: 0.9rem;
  color: #000;
  text-shadow: 1px 1px 0 #fff;
}

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

  100% {
    transform: translateX(0);
  }
}

/* ========== YouTube モーダル ========== */
.youtube-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.youtube-modal[hidden] {
  display: none !important;
}

.youtube-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  cursor: pointer;
}

.youtube-modal-content {
  position: relative;
  width: 100%;
  max-width: 900px;
  background: white;
  border: var(--kfb-border);
  box-shadow: 12px 12px 0 var(--kfb-black);
  padding: 0.5rem;
}

.youtube-modal-close {
  position: absolute;
  top: -12px;
  right: -12px;
  width: 40px;
  height: 40px;
  font-size: 1.75rem;
  line-height: 1;
  background: var(--kfb-magenta);
  color: white;
  border: var(--kfb-border);
  box-shadow: 4px 4px 0 var(--kfb-black);
  cursor: pointer;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.youtube-modal-close:hover {
  background: var(--kfb-cyan);
}

.youtube-modal-video {
  position: relative;
  padding-bottom: 56.25%;
  /* 16:9 */
  height: 0;
  overflow: hidden;
}

.youtube-modal-video iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}