/* ========================================
   しらゆりデンタルクリニック — style.css
   おみせWebポートフォリオ用デモサイト
   ======================================== */

/* --------------------------------------------------
   1. CSS Variables (Design Tokens)
-------------------------------------------------- */
:root {
  /* Colors (A案: ソフトアクア × ミントグリーン × ホワイト) */
  --color-aqua: #cfe6ea;
  --color-aqua-deep: #6fb3bf;
  --color-mint: #7fc8b4;
  --color-mint-deep: #4fa58e;
  --color-white: #ffffff;
  --color-ice: #f7fbfc;
  --color-text: #2a3a3f;
  --color-sub-text: #6b7a80;
  --color-border: #e4ecee;

  /* Typography */
  --font-mincho: 'Shippori Mincho', 'Hiragino Mincho ProN', 'Yu Mincho', serif;
  --font-sans: 'Noto Sans JP', 'Hiragino Sans', 'Yu Gothic', sans-serif;
  --font-serif-en: 'Cormorant Garamond', 'Times New Roman', serif;

  /* Font sizes */
  --fs-xs: 13px;
  --fs-sm: 14px;
  --fs-base: 16px;
  --fs-md: 18px;
  --fs-lg: 20px;
  --fs-xl: 24px;
  --fs-2xl: 32px;
  --fs-3xl: 40px;
  --fs-4xl: 52px;

  /* Spacing */
  --section-padding-pc: 100px;
  --section-padding-sp: 60px;

  /* Border radius */
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Shadow */
  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 28px rgba(111, 179, 191, 0.12);
  --shadow-lg: 0 16px 48px rgba(111, 179, 191, 0.18);

  /* Transitions */
  --transition: 0.3s ease;
  --transition-fast: 0.2s ease;
}

/* --------------------------------------------------
   2. Reset
-------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.8;
  color: var(--color-text);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  color: inherit;
}

h1, h2, h3, h4 {
  font-family: var(--font-mincho);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.02em;
}

input, textarea, select {
  font-family: inherit;
  font-size: var(--fs-base);
}

:focus-visible {
  outline: 2px solid var(--color-mint-deep);
  outline-offset: 3px;
}

/* スキップリンク */
.skip-link {
  position: absolute;
  top: -48px;
  left: 12px;
  padding: 10px 16px;
  background: var(--color-mint-deep);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  z-index: 2000;
  font-size: var(--fs-sm);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 12px;
}

/* --------------------------------------------------
   3. Container
-------------------------------------------------- */
.container {
  width: 92%;
  max-width: 1200px;
  margin: 0 auto;
}

.container--narrow {
  max-width: 800px;
}

/* --------------------------------------------------
   4. Typography Utilities
-------------------------------------------------- */
.section-label {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-md);
  letter-spacing: 0.1em;
  color: var(--color-aqua-deep);
  display: block;
  margin-bottom: 10px;
}

.section-title {
  font-size: var(--fs-xl);
  color: var(--color-text);
  line-height: 1.5;
}

.section-lead {
  font-size: var(--fs-base);
  color: var(--color-sub-text);
  margin-top: 20px;
  line-height: 1.9;
}

.text-center {
  text-align: center;
}

/* --------------------------------------------------
   5. Buttons
-------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 32px;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  font-weight: 600;
  letter-spacing: 0.05em;
  border-radius: var(--radius);
  transition: all var(--transition-fast);
  line-height: 1.4;
  text-align: center;
  min-height: 48px;
}

.btn--primary {
  background-color: var(--color-mint);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(127, 200, 180, 0.35);
}

.btn--primary:hover {
  background-color: var(--color-mint-deep);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(79, 165, 142, 0.45);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-text);
}

.btn--outline:hover {
  background-color: var(--color-text);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn--white {
  background-color: var(--color-white);
  color: var(--color-mint-deep);
}

.btn--white:hover {
  background-color: var(--color-ice);
  transform: translateY(-2px);
}

.btn--lg {
  padding: 18px 40px;
  font-size: var(--fs-md);
  min-height: 56px;
}

.btn--sm {
  padding: 10px 20px;
  font-size: var(--fs-sm);
  min-height: 40px;
}

/* --------------------------------------------------
   6. Header
-------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 72px;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 1000;
  transition: box-shadow var(--transition), background-color var(--transition);
}

.header.is-scrolled {
  background-color: rgba(255, 255, 255, 1);
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header__logo {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.header__logo-main {
  font-family: var(--font-mincho);
  font-size: var(--fs-md);
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: 0.03em;
}

.header__logo-sub {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 11px;
  color: var(--color-aqua-deep);
  letter-spacing: 0.15em;
  margin-top: 2px;
}

.header__nav {
  display: none;
}

.header__nav-list {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header__nav-item a {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  padding: 8px 0;
}

.header__nav-item a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-mint);
  transition: width var(--transition);
}

.header__nav-item a:hover,
.header__nav-item a.is-active {
  color: var(--color-mint-deep);
}

.header__nav-item a:hover::after,
.header__nav-item a.is-active::after {
  width: 100%;
}

.header__nav-item--cta a {
  background-color: var(--color-mint);
  color: var(--color-white);
  padding: 10px 22px;
  border-radius: var(--radius);
  font-weight: 600;
  box-shadow: 0 2px 10px rgba(127, 200, 180, 0.35);
}

.header__nav-item--cta a::after {
  display: none;
}

.header__nav-item--cta a:hover {
  background-color: var(--color-mint-deep);
  color: var(--color-white);
  transform: translateY(-1px);
}

/* Hamburger */
.header__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  gap: 6px;
  position: relative;
  z-index: 1100;
}

.header__hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  transition: transform var(--transition), opacity var(--transition);
  border-radius: 2px;
}

.header__hamburger.is-active .header__hamburger-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.header__hamburger.is-active .header__hamburger-line:nth-child(2) {
  opacity: 0;
}

.header__hamburger.is-active .header__hamburger-line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Drawer */
.header__drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--color-ice);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
  z-index: 1050;
  overflow-y: auto;
  padding: 100px 24px 40px;
}

.header__drawer.is-open {
  opacity: 1;
  visibility: visible;
}

.header__drawer-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 400px;
  margin: 0 auto;
}

.header__drawer-item {
  border-bottom: 1px solid var(--color-border);
}

.header__drawer-item a {
  display: block;
  padding: 20px 4px;
  font-family: var(--font-mincho);
  font-size: var(--fs-lg);
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.header__drawer-item a:hover {
  color: var(--color-mint-deep);
}

.header__drawer-cta {
  max-width: 400px;
  margin: 32px auto 0;
  text-align: center;
}

.header__drawer-cta .btn {
  width: 100%;
}

body.drawer-open {
  overflow: hidden;
}

/* --------------------------------------------------
   7. Footer
-------------------------------------------------- */
.footer {
  background-color: var(--color-ice);
  color: var(--color-text);
  padding: 64px 0 24px;
  border-top: 1px solid var(--color-border);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer__brand-logo {
  font-family: var(--font-mincho);
  font-size: var(--fs-lg);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 6px;
}

.footer__brand-sub {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-sm);
  color: var(--color-aqua-deep);
  letter-spacing: 0.15em;
  margin-bottom: 16px;
}

.footer__brand-catch {
  font-size: var(--fs-sm);
  color: var(--color-sub-text);
  line-height: 1.8;
}

.footer__heading {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav a {
  font-size: var(--fs-sm);
  color: var(--color-sub-text);
}

.footer-nav a:hover {
  color: var(--color-mint-deep);
}

.footer__info p {
  font-size: var(--fs-sm);
  color: var(--color-sub-text);
  margin-bottom: 8px;
  line-height: 1.7;
  /* ラベル(strong, 48px) + margin-right 8px = 56px の幅に対し、
     2行目以降がラベル位置に戻らずインデントされた状態で揃うようにする（ぶら下げインデント） */
  padding-left: 56px;
  text-indent: -56px;
}

.footer__info strong {
  color: var(--color-text);
  font-weight: 600;
  display: inline-block;
  min-width: 48px;
  margin-right: 8px;
  text-indent: 0;
}

.footer__social {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-aqua-deep);
  font-size: var(--fs-md);
  transition: all var(--transition-fast);
}

.footer__social-link:hover {
  background-color: var(--color-mint);
  color: var(--color-white);
  border-color: var(--color-mint);
}

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  text-align: center;
}

.footer__portfolio-note {
  font-size: var(--fs-xs);
  color: var(--color-sub-text);
  margin-bottom: 8px;
  line-height: 1.6;
}

.footer__copyright {
  font-size: var(--fs-xs);
  color: var(--color-sub-text);
  font-family: var(--font-serif-en);
  font-style: italic;
  letter-spacing: 0.1em;
}

/* --------------------------------------------------
   8. Section
-------------------------------------------------- */
.section {
  padding: var(--section-padding-sp) 0;
}

.section--ice {
  background-color: var(--color-ice);
}

.section--aqua {
  background-color: var(--color-aqua);
}

.section__header {
  margin-bottom: 48px;
}

/* --------------------------------------------------
   9. Hero (Top Page)
-------------------------------------------------- */
.hero {
  position: relative;
  height: 92vh;
  min-height: 560px;
  max-height: 820px;
  overflow: hidden;
  padding-top: 72px;
}

/* ヒーロー上部の細い横線 (左→右へゆっくり伸びる) */
.hero::before {
  content: '';
  position: absolute;
  top: 84px;
  left: 6%;
  width: 0;
  height: 1px;
  background: linear-gradient(to right, var(--color-mint) 0%, var(--color-aqua-deep) 100%);
  z-index: 2;
  animation: heroAccentLine 2.2s 0.3s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  /* 開始時はわずかに大きく＋ぼかしを入れて、徐々にクリアになる */
  animation: heroBgReveal 1.6s 0.1s cubic-bezier(0.22, 1, 0.36, 1) both,
             heroBgZoom 28s 1.6s ease-out forwards;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right,
    rgba(255, 255, 255, 0.9) 0%,
    rgba(255, 255, 255, 0.55) 45%,
    rgba(207, 230, 234, 0.15) 100%);
}

/* --------------------------------------------------
   9-A. Hero Slideshow (cross-fade × Ken Burns)
-------------------------------------------------- */
.hero--slideshow .hero__slides {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 2s ease;
  will-change: opacity;
}

.hero__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* デフォルト transform は Ken Burns の終了位置と同じにしておく。
     さらに transition を併用することで、is-active 解除時の瞬間ジャンプを滑らかに */
  transform: scale(1.18) translate3d(-1.5%, 0.8%, 0);
  transition: transform 2s ease-out;
}

.hero__slide.is-active {
  opacity: 1;
  z-index: 1;
}

.hero__slide.is-active img {
  /* Ken Burns: animation duration を slide間隔（PC 7000ms）と一致させて、
     アニメ完了タイミング = 切替タイミングにし、途中打ち切りによるガクツキを防ぐ */
  animation: kenBurnsZoom 7s ease-out;
}

@media (max-width: 767px) {
  .hero__slide.is-active img {
    /* SP は slide間隔 9000ms に合わせる */
    animation: kenBurnsZoom 9s ease-out;
  }
}

@keyframes kenBurnsZoom {
  from { transform: scale(1.06) translate3d(0, 0, 0); }
  to   { transform: scale(1.18) translate3d(-1.5%, 0.8%, 0); }
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  /* 左側に深いミントグリーンの色付きオーバーレイ（医院のブランドカラー）。
     文字は別レイヤー（z-index: 3）なのでこのオーバーレイは画像にだけかかる。 */
  background: linear-gradient(to right,
    rgba(31, 90, 78, 0.85) 0%,
    rgba(79, 165, 142, 0.65) 30%,
    rgba(127, 200, 180, 0.30) 55%,
    rgba(255, 255, 255, 0.00) 80%);
  pointer-events: none;
}

/* キャッチコピーオーバーレイ (キャプション) */
.hero__caption {
  font-family: var(--font-mincho);
  font-size: clamp(14px, 1.8vw, 16px);
  color: rgba(255, 255, 255, 0.92);
  letter-spacing: 0.12em;
  margin: -8px 0 18px;
  opacity: 0;
  transform: translateY(8px);
  animation: heroFadeIn 1.0s 1.4s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  transition: opacity 0.8s ease, transform 0.8s ease;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.25);
}

.hero__caption.is-changing {
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

/* スライド選択ドット */
.hero__dots {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: 12px;
  align-items: center;
}

.hero__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(127, 200, 180, 0.35);
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  cursor: pointer;
  padding: 0;
  transition: background 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
}

.hero__dot:hover {
  background: var(--color-mint);
  transform: scale(1.15);
}

.hero__dot.is-active {
  background: var(--color-mint-deep);
  border-color: var(--color-white);
  transform: scale(1.25);
  box-shadow: 0 0 0 3px rgba(79, 165, 142, 0.18);
}

/* ヒーロー: 背景フェード + ブラー解除 */
@keyframes heroBgReveal {
  0% {
    opacity: 0;
    filter: blur(14px);
    transform: scale(1.08);
  }
  100% {
    opacity: 1;
    filter: blur(0);
    transform: scale(1.04);
  }
}

/* ヒーロー: 余韻のあるゆっくりズーム */
@keyframes heroBgZoom {
  from { transform: scale(1.04); }
  to   { transform: scale(1.12); }
}

@keyframes heroAccentLine {
  to { width: 22%; }
}

.hero__content {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
  padding: 0 6%;
  max-width: 1200px;
  margin: 0 auto;
}

.hero__inner {
  max-width: 640px;
}

.hero__eyebrow {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-md);
  color: rgba(255, 255, 255, 0.95);
  letter-spacing: 0.15em;
  margin-bottom: 18px;
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeIn 1s 0.2s ease-out forwards;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.3);
}

.hero__title {
  font-size: clamp(28px, 4.8vw, 48px);
  line-height: 1.5;
  color: var(--color-white);
  margin-bottom: 18px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
  /* デフォルト (JSがsplitしない場合) はそのまま表示 */
}

/* JSがsplit成功時にこのクラスを付与する → 文字単位アニメ */
.hero__title.is-split {
  opacity: 1;
}

/* JSがsplitしなかった場合のフォールバック: 親をフェードイン */
.hero__title:not(.is-split) {
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeIn 1s 0.5s ease-out forwards;
}

/* 文字単位 reveal: JSが各文字を <span class="char"> でラップする */
.hero__title .char,
.split-chars .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.6em);
  clip-path: inset(0 0 100% 0);
  animation: charReveal 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: calc(0.5s + var(--char-i, 0) * 0.035s);
  white-space: pre;
}

/* スペース文字は clip-path/transform を持たせない */
.hero__title .char--space,
.split-chars .char--space {
  animation: none;
  opacity: 1;
  clip-path: none;
  transform: none;
}

@keyframes charReveal {
  0%   { opacity: 0; transform: translateY(0.6em); clip-path: inset(0 0 100% 0); }
  60%  { opacity: 1; }
  100% { opacity: 1; transform: translateY(0); clip-path: inset(0 0 0 0); }
}

.hero__sub {
  font-size: var(--fs-base);
  color: rgba(255, 255, 255, 0.95);
  line-height: 1.9;
  margin-bottom: 28px;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
  opacity: 0;
  transform: translateX(-30px);
  animation: heroFadeInX 1.1s 1.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hero__cta {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-start;
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeIn 1s 2.0s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes heroFadeInX {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.hero__scroll {
  position: absolute;
  right: 40px;
  bottom: 32px;
  z-index: 2;
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-sm);
  letter-spacing: 0.15em;
  color: var(--color-aqua-deep);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  opacity: 0;
  animation: heroFadeIn 1s 2.4s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hero__scroll::after {
  content: '';
  display: block;
  width: 1px;
  height: 56px;
  background: var(--color-aqua-deep);
  animation: scrollLine 1.8s infinite;
}

@keyframes heroFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* --------------------------------------------------
   10. Page Hero (Inner Pages)
-------------------------------------------------- */
.page-hero {
  position: relative;
  height: 40vh;
  min-height: 280px;
  max-height: 400px;
  padding-top: 72px;
  overflow: hidden;
}

.page-hero--narrow {
  height: 32vh;
  min-height: 220px;
}

.page-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom,
    rgba(255, 255, 255, 0.7) 0%,
    rgba(207, 230, 234, 0.4) 100%);
}

.page-hero__content {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 24px;
}

.page-hero__label {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-md);
  color: var(--color-aqua-deep);
  letter-spacing: 0.15em;
  margin-bottom: 12px;
  opacity: 0;
  transform: translateX(-20px);
  animation: heroFadeInX 1.0s 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.page-hero__title {
  font-size: clamp(24px, 4vw, 40px);
  color: var(--color-text);
  line-height: 1.3;
  opacity: 0;
  transform: translateY(16px);
  animation: heroFadeIn 1.0s 1.0s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.page-hero__bg {
  animation: heroBgReveal 1.4s 0.1s cubic-bezier(0.22, 1, 0.36, 1) both,
             heroBgZoom 24s 1.4s ease-out forwards;
}

/* --------------------------------------------------
   11. News Bar
-------------------------------------------------- */
.news {
  background-color: var(--color-ice);
  padding: 28px 0;
  border-bottom: 1px solid var(--color-border);
}

.news__list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.news__item {
  display: flex;
  gap: 16px;
  align-items: baseline;
  flex-wrap: wrap;
  font-size: var(--fs-sm);
}

.news__date {
  font-family: var(--font-serif-en);
  font-style: italic;
  color: var(--color-aqua-deep);
  letter-spacing: 0.05em;
  min-width: 100px;
  /* 折り返さない（PC横並び時に日付列の幅を保つ） */
  flex-shrink: 0;
}

.news__text {
  color: var(--color-text);
  /* 折り返した場合も日付の右側に揃うよう、flexの伸縮を許可 */
  flex: 1 1 auto;
  min-width: 0;
}

/* --------------------------------------------------
   12. Concept Section
-------------------------------------------------- */
.concept {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

.concept__image {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 4 / 5;
}

.concept__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.concept__body {
  padding: 8px 0;
}

.concept__title {
  font-size: var(--fs-2xl);
  line-height: 1.5;
  margin-bottom: 24px;
}

.concept__text {
  font-size: var(--fs-base);
  line-height: 2;
  color: var(--color-sub-text);
  margin-bottom: 16px;
}

/* --------------------------------------------------
   13. Promise Cards (3カラム)
-------------------------------------------------- */
.promise-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.promise-card {
  background-color: var(--color-white);
  padding: 40px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: all var(--transition);
}

.promise-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-mint);
}

.promise-card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-aqua);
  border-radius: var(--radius-full);
  color: var(--color-aqua-deep);
}

.promise-card__title {
  font-size: var(--fs-lg);
  margin-bottom: 16px;
  color: var(--color-text);
}

.promise-card__text {
  font-size: var(--fs-sm);
  color: var(--color-sub-text);
  line-height: 1.9;
}

/* --------------------------------------------------
   14. Menu Highlight Cards (4カラム)
-------------------------------------------------- */
.menu-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 40px;
}

.menu-card {
  background-color: var(--color-white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  display: block;
  position: relative;
}

.menu-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.menu-card__image {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.menu-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.menu-card:hover .menu-card__image img {
  transform: scale(1.05);
}

.menu-card__body {
  padding: 24px;
}

.menu-card__label {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-sm);
  color: var(--color-aqua-deep);
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.menu-card__title {
  font-size: var(--fs-lg);
  color: var(--color-text);
  margin-bottom: 10px;
}

.menu-card:hover .menu-card__title {
  color: var(--color-aqua-deep);
}

.menu-card__text {
  font-size: var(--fs-sm);
  color: var(--color-sub-text);
  line-height: 1.8;
  margin-bottom: 14px;
}

.menu-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-sm);
  color: var(--color-mint-deep);
  font-weight: 600;
}

/* --------------------------------------------------
   15. Director Greeting
-------------------------------------------------- */
.director {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

.director__image {
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 4 / 5;
  max-width: 420px;
  margin: 0 auto;
}

.director__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.director__body {
  padding: 8px 0;
}

.director__label {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-md);
  color: var(--color-aqua-deep);
  margin-bottom: 10px;
  display: block;
}

.director__title {
  font-size: var(--fs-2xl);
  margin-bottom: 24px;
}

.director__text {
  font-size: var(--fs-base);
  color: var(--color-sub-text);
  line-height: 2;
  margin-bottom: 16px;
}

.director__sign {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-top: 32px;
}

.director__sign-role {
  font-size: var(--fs-sm);
  color: var(--color-sub-text);
}

.director__sign-name {
  font-family: var(--font-mincho);
  font-size: var(--fs-lg);
  color: var(--color-text);
}

/* --------------------------------------------------
   16. Gallery (Parallax)
-------------------------------------------------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.gallery__item {
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 3 / 4;
  position: relative;
}

.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.gallery__item:hover img {
  transform: scale(1.05);
}

.gallery__item--wide {
  aspect-ratio: 4 / 3;
}

/* --------------------------------------------------
   17. Access / Hours
-------------------------------------------------- */
.access-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.access-info__list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.access-info__item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 16px;
  align-items: baseline;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--fs-sm);
}

.access-info__label {
  font-weight: 600;
  color: var(--color-aqua-deep);
}

.access-info__value {
  color: var(--color-text);
  line-height: 1.8;
}

.access-map {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--color-ice);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-aqua-deep);
  font-size: var(--fs-sm);
  border: 1px solid var(--color-border);
}

.access-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* Hours Table */
.hours-table {
  width: 100%;
  /* 「土」1文字と「日祝」2文字で列幅が変わるのを防ぐため、固定レイアウト */
  table-layout: fixed;
  border-collapse: collapse;
  background-color: var(--color-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  font-size: var(--fs-sm);
}

.hours-table th,
.hours-table td {
  padding: 14px 10px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.hours-table thead th {
  background-color: var(--color-aqua);
  color: var(--color-text);
  font-weight: 600;
  letter-spacing: 0.05em;
}

.hours-table tbody th {
  background-color: var(--color-ice);
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  padding-left: 16px;
}

.hours-table tbody tr:last-child th,
.hours-table tbody tr:last-child td {
  border-bottom: none;
}

.hours-table__mark-ok { color: var(--color-mint-deep); font-weight: 600; }
.hours-table__mark-half { color: var(--color-aqua-deep); font-weight: 600; }
.hours-table__mark-off { color: var(--color-sub-text); }

.hours-note {
  margin-top: 16px;
  font-size: var(--fs-xs);
  color: var(--color-sub-text);
  line-height: 1.8;
}

/* --------------------------------------------------
   18. CTA Banner
-------------------------------------------------- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-aqua) 0%, var(--color-ice) 100%);
  padding: 80px 0;
  text-align: center;
}

.cta-banner__title {
  font-size: var(--fs-2xl);
  color: var(--color-text);
  margin-bottom: 20px;
  line-height: 1.4;
}

.cta-banner__text {
  font-size: var(--fs-base);
  color: var(--color-sub-text);
  margin-bottom: 32px;
  line-height: 1.9;
}

.cta-banner__actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
  justify-content: center;
}

/* --------------------------------------------------
   19. Policy (About: 4つのお約束)
-------------------------------------------------- */
.policy-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.policy-card {
  background-color: var(--color-white);
  padding: 32px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.policy-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-aqua-deep);
}

.policy-card__number {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-xl);
  color: var(--color-mint);
  margin-bottom: 8px;
}

.policy-card__title {
  font-size: var(--fs-lg);
  color: var(--color-text);
  margin-bottom: 14px;
}

.policy-card__text {
  font-size: var(--fs-sm);
  color: var(--color-sub-text);
  line-height: 1.9;
}

/* --------------------------------------------------
   20. Staff (About)
-------------------------------------------------- */
.staff-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.staff-card {
  text-align: center;
}

.staff-card__image {
  width: 160px;
  height: 160px;
  margin: 0 auto 16px;
  border-radius: var(--radius-full);
  overflow: hidden;
  background-color: var(--color-aqua);
}

.staff-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.staff-card__name {
  font-size: var(--fs-md);
  color: var(--color-text);
  margin-bottom: 4px;
}

.staff-card__role {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-sm);
  color: var(--color-aqua-deep);
  margin-bottom: 10px;
}

.staff-card__comment {
  font-size: var(--fs-sm);
  color: var(--color-sub-text);
  line-height: 1.8;
  padding: 0 8px;
}

/* --------------------------------------------------
   21. Equipment (About)
-------------------------------------------------- */
.equipment-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.equipment-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.equipment-card__image {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.equipment-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.equipment-card__body {
  padding: 24px;
}

.equipment-card__title {
  font-size: var(--fs-md);
  color: var(--color-text);
  margin-bottom: 10px;
}

.equipment-card__text {
  font-size: var(--fs-sm);
  color: var(--color-sub-text);
  line-height: 1.9;
}

/* --------------------------------------------------
   22. Menu Page — Nav
-------------------------------------------------- */
.menu-nav {
  position: sticky;
  top: 72px;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
  z-index: 900;
  overflow-x: auto;
}

.menu-nav__list {
  display: flex;
  gap: 8px;
  min-width: max-content;
  padding: 0 4px;
}

.menu-nav__item a {
  display: inline-block;
  padding: 8px 16px;
  font-size: var(--fs-sm);
  color: var(--color-sub-text);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.menu-nav__item a:hover,
.menu-nav__item a.is-active {
  background-color: var(--color-mint);
  color: var(--color-white);
  border-color: var(--color-mint);
}

/* Menu Sections (detail) */
.menu-detail {
  padding: 80px 0;
  border-bottom: 1px solid var(--color-border);
}

.menu-detail__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

.menu-detail__image {
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 4 / 3;
}

.menu-detail__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.menu-detail__label {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-md);
  color: var(--color-aqua-deep);
  margin-bottom: 10px;
  display: block;
}

.menu-detail__title {
  font-size: var(--fs-2xl);
  margin-bottom: 20px;
}

.menu-detail__text {
  font-size: var(--fs-base);
  color: var(--color-sub-text);
  line-height: 2;
  margin-bottom: 20px;
}

.menu-detail__list {
  margin-bottom: 24px;
  background-color: var(--color-ice);
  padding: 20px 24px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-mint);
}

.menu-detail__list-title {
  font-size: var(--fs-sm);
  color: var(--color-text);
  font-weight: 700;
  margin-bottom: 10px;
}

.menu-detail__list ul {
  list-style: none;
}

.menu-detail__list li {
  font-size: var(--fs-sm);
  color: var(--color-sub-text);
  padding-left: 20px;
  position: relative;
  line-height: 1.9;
}

.menu-detail__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 10px;
  height: 1px;
  background-color: var(--color-mint);
}

.menu-detail--reverse .menu-detail__image {
  order: -1;
}

/* --------------------------------------------------
   23. Price Table
-------------------------------------------------- */
.price-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-white);
  font-size: var(--fs-sm);
}

.price-table th,
.price-table td {
  padding: 16px 14px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.price-table thead th {
  background-color: var(--color-ice);
  color: var(--color-text);
  font-weight: 700;
  font-size: var(--fs-sm);
  letter-spacing: 0.03em;
}

.price-table td:last-child,
.price-table th:last-child {
  text-align: right;
  font-weight: 600;
}

.price-note {
  margin-top: 16px;
  font-size: var(--fs-xs);
  color: var(--color-sub-text);
  line-height: 1.8;
}

/* --------------------------------------------------
   24. FAQ Accordion
-------------------------------------------------- */
.faq {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 800px;
  margin: 0 auto;
}

.faq__item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.faq__trigger {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  gap: 16px;
  line-height: 1.6;
  font-family: inherit;
}

.faq__trigger:hover {
  background-color: var(--color-ice);
}

.faq__q-badge {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-lg);
  color: var(--color-aqua-deep);
  flex-shrink: 0;
  line-height: 1.4;
}

.faq__trigger-text {
  flex: 1;
}

.faq__icon {
  width: 24px;
  height: 24px;
  position: relative;
  flex-shrink: 0;
  margin-top: 4px;
}

.faq__icon::before,
.faq__icon::after {
  content: '';
  position: absolute;
  background-color: var(--color-mint-deep);
  transition: transform var(--transition);
}

.faq__icon::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  transform: translateY(-50%);
}

.faq__icon::after {
  top: 0;
  left: 50%;
  width: 2px;
  height: 100%;
  transform: translateX(-50%);
}

.faq__item.is-open .faq__icon::after {
  transform: translateX(-50%) rotate(90deg);
}

.faq__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq__content-inner {
  padding: 0 24px 24px 60px;
  font-size: var(--fs-sm);
  color: var(--color-sub-text);
  line-height: 1.9;
}

.faq__a-badge {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-lg);
  color: var(--color-mint);
  margin-right: 10px;
}

/* --------------------------------------------------
   25. Access: Steps
-------------------------------------------------- */
.steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
  counter-reset: step;
}

.step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  align-items: flex-start;
  padding: 20px 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.step__number {
  counter-increment: step;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: var(--color-mint);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-md);
}

.step__number::before {
  content: counter(step);
}

.step__body h4 {
  font-size: var(--fs-md);
  color: var(--color-text);
  margin-bottom: 6px;
  font-family: var(--font-mincho);
  font-weight: 500;
}

.step__body p {
  font-size: var(--fs-sm);
  color: var(--color-sub-text);
  line-height: 1.9;
}

/* --------------------------------------------------
   26. First Visit Info (Access)
-------------------------------------------------- */
.first-visit {
  background-color: var(--color-ice);
  padding: 40px;
  border-radius: var(--radius);
}

.first-visit__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 20px;
}

.first-visit__item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: var(--fs-sm);
  color: var(--color-text);
  line-height: 1.9;
}

.first-visit__item::before {
  content: '◆';
  color: var(--color-mint);
  flex-shrink: 0;
}

/* --------------------------------------------------
   27. Privacy Page
-------------------------------------------------- */
.privacy-content {
  max-width: 800px;
  margin: 0 auto;
}

.privacy-content h2 {
  font-size: var(--fs-lg);
  margin: 40px 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}

.privacy-content h2:first-child {
  margin-top: 0;
}

.privacy-content p,
.privacy-content ul {
  font-size: var(--fs-sm);
  color: var(--color-text);
  line-height: 2;
  margin-bottom: 16px;
}

.privacy-content ul {
  padding-left: 24px;
}

.privacy-content ul li {
  list-style: disc;
  margin-bottom: 6px;
}

.privacy-content__updated {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  font-size: var(--fs-xs);
  color: var(--color-sub-text);
  text-align: right;
}

/* --------------------------------------------------
   28. Floating Mobile CTA
-------------------------------------------------- */
.floating-cta {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  display: flex;
  z-index: 900;
  box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.08);
}

.floating-cta__btn {
  flex: 1;
  padding: 14px;
  text-align: center;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 52px;
}

.floating-cta__btn--tel {
  background-color: var(--color-aqua-deep);
}

.floating-cta__btn--reserve {
  background-color: var(--color-mint);
}

/* --------------------------------------------------
   29. Fade-in Animation
-------------------------------------------------- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in--delay-1 { transition-delay: 0.15s; }
.fade-in--delay-2 { transition-delay: 0.3s; }
.fade-in--delay-3 { transition-delay: 0.45s; }

/* --------------------------------------------------
   30. Responsive — Tablet (768px+)
-------------------------------------------------- */
@media (min-width: 768px) {
  .section {
    padding: 80px 0;
  }

  .section-title {
    font-size: var(--fs-2xl);
  }

  /* 社長指摘③対応: お知らせは縦1列で日付列を完全に揃える（横並びだと文字数差で折返しずれが発生するため） */
  .news__list {
    flex-direction: column;
    gap: 14px;
  }

  .news__item {
    flex-direction: row;
    align-items: baseline;
    gap: 20px;
    flex-wrap: nowrap;
  }

  .news__item .news__date {
    min-width: 110px;
    flex: 0 0 auto;
    white-space: nowrap;
  }

  .news__item .news__text {
    flex: 1 1 auto;
    line-height: 1.7;
  }

  .concept {
    grid-template-columns: 5fr 6fr;
    gap: 56px;
  }

  .promise-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .menu-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .director {
    grid-template-columns: 2fr 3fr;
    gap: 56px;
  }

  .gallery {
    grid-template-columns: repeat(4, 1fr);
  }

  .gallery__item--wide {
    grid-column: span 2;
  }

  .access-grid {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }

  .policy-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .staff-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .equipment-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .menu-detail__inner {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }

  .menu-detail--reverse .menu-detail__image {
    order: 1;
  }

  .cta-banner__actions {
    flex-direction: row;
  }

  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }

  .hero__cta {
    flex-direction: row;
    align-items: center;
  }

  /* Floating CTA: タブレット以上では非表示 */
  .floating-cta {
    display: none;
  }

  body {
    padding-bottom: 0 !important;
  }
}

/* --------------------------------------------------
   31. Responsive — PC (1024px+)
-------------------------------------------------- */
@media (min-width: 1024px) {
  .section {
    padding: var(--section-padding-pc) 0;
  }

  .header__nav {
    display: flex;
  }

  .header__hamburger {
    display: none;
  }

  .header__drawer {
    display: none;
  }

  .section-title {
    font-size: var(--fs-3xl);
  }

  .concept__title,
  .director__title,
  .menu-detail__title {
    font-size: var(--fs-3xl);
  }

  .cta-banner {
    padding: 100px 0;
  }

  .cta-banner__title {
    font-size: var(--fs-3xl);
  }
}

/* --------------------------------------------------
   32. Mobile adjustments (〜767px)
-------------------------------------------------- */
@media (max-width: 767px) {
  body {
    padding-bottom: 52px; /* floating CTAの高さ分 */
  }

  .hero {
    /* 小画面（iPhone SE 等 568px）でCTAが下に食い込まないよう調整 */
    height: auto;
    min-height: 100svh;
    padding-top: 96px;
    padding-bottom: 40px;
  }

  .hero__scroll {
    display: none;
  }

  .footer {
    padding-bottom: 80px; /* floating CTA被り回避 */
  }
}

/* --------------------------------------------------
   33. Page Loader (アクア色オーバーレイ上下分割)
-------------------------------------------------- */
.page-loader {
  position: fixed;
  inset: 0;
  z-index: 2000;
  pointer-events: none;
  display: block;
}

.page-loader__half {
  position: absolute;
  left: 0;
  width: 100%;
  height: 50%;
  background: linear-gradient(180deg, var(--color-aqua) 0%, var(--color-ice) 100%);
  transition: transform 0.9s cubic-bezier(0.76, 0, 0.24, 1);
  will-change: transform;
}

.page-loader__half--top    { top: 0; }
.page-loader__half--bottom { bottom: 0; background: linear-gradient(0deg, var(--color-aqua) 0%, var(--color-ice) 100%); }

.page-loader__logo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-mincho);
  font-size: clamp(24px, 4vw, 36px);
  color: var(--color-text);
  letter-spacing: 0.12em;
  z-index: 2001;
  opacity: 0;
  animation: loaderLogoFade 1.2s 0.1s ease forwards;
  white-space: nowrap;
}

.page-loader__logo-sub {
  display: block;
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 0.42em;
  color: var(--color-aqua-deep);
  letter-spacing: 0.2em;
  margin-top: 8px;
  text-align: center;
}

@keyframes loaderLogoFade {
  0%   { opacity: 0; transform: translate(-50%, -50%) translateY(8px); }
  30%  { opacity: 1; transform: translate(-50%, -50%) translateY(0); }
  70%  { opacity: 1; }
  100% { opacity: 0; }
}

body.is-loaded .page-loader__half--top    { transform: translateY(-100%); }
body.is-loaded .page-loader__half--bottom { transform: translateY(100%); }
body.is-loaded .page-loader { pointer-events: none; }
body:not(.is-loaded) { overflow: hidden; }

/* --------------------------------------------------
   34. リッチなセクション見出し reveal
   - 「mask reveal」: 見出しが下から立ち上がる感じ
-------------------------------------------------- */
.reveal-mask {
  display: inline-block;
  overflow: hidden;
  position: relative;
}

.reveal-mask > .reveal-mask__inner {
  display: inline-block;
  transform: translateY(110%);
  transition: transform 1.0s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}

.reveal-mask.is-visible > .reveal-mask__inner,
.is-visible > .reveal-mask > .reveal-mask__inner {
  transform: translateY(0);
}

/* セクションラベル(英字斜体)を左から slide-in */
.section-label.is-anim {
  display: inline-block;
  opacity: 0;
  transform: translateX(-24px);
  transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: 0.05s;
}

.section-label.is-anim.is-visible,
.is-visible .section-label.is-anim {
  opacity: 1;
  transform: translateX(0);
}

/* --------------------------------------------------
   35. 画像が白から浮き上がる reveal
-------------------------------------------------- */
.image-reveal {
  position: relative;
  overflow: hidden;
}

.image-reveal img {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 1.1s ease, transform 1.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.image-reveal::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-white);
  transform-origin: bottom;
  transition: transform 1.0s cubic-bezier(0.76, 0, 0.24, 1);
  z-index: 1;
}

.image-reveal.is-visible img {
  opacity: 1;
  transform: scale(1);
}

.image-reveal.is-visible::after {
  transform: scaleY(0);
}

/* --------------------------------------------------
   36. 上下clip-pathマスク reveal (セクション見出し系)
-------------------------------------------------- */
.clip-reveal {
  clip-path: inset(100% 0 0 0);
  transition: clip-path 1.1s cubic-bezier(0.22, 1, 0.36, 1);
}

.clip-reveal.is-visible,
.is-visible.clip-reveal {
  clip-path: inset(0 0 0 0);
}

/* --------------------------------------------------
   37. 区切りライン左→右 reveal
-------------------------------------------------- */
.divider-line {
  display: block;
  height: 1px;
  background: var(--color-border);
  width: 100%;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.divider-line.is-visible,
.is-visible .divider-line {
  transform: scaleX(1);
}

/* --------------------------------------------------
   38. メニューカードのチェッカーボード stagger
-------------------------------------------------- */
.menu-grid .menu-card.fade-in {
  /* 偶数: 上から、奇数: 下から */
  transform: translateY(40px);
  transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.3s ease;
}

.menu-grid .menu-card:nth-child(even).fade-in {
  transform: translateY(-40px);
}

.menu-grid .menu-card.fade-in.is-visible {
  transform: translateY(0);
}

/* メニューカードのホバー: フロントの「詳細→」をfade-in */
.menu-card {
  position: relative;
}

.menu-card__overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  /* メニューカードの画像部分（aspect-ratio 4/3）に重ねる */
  aspect-ratio: 4 / 3;
  background: linear-gradient(180deg, rgba(127, 200, 180, 0) 40%, rgba(79, 165, 142, 0.78) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  padding: 18px 22px;
  color: var(--color-white);
  font-family: var(--font-serif-en);
  font-style: italic;
  letter-spacing: 0.1em;
  font-size: var(--fs-md);
  z-index: 2;
}

.menu-card:hover .menu-card__overlay {
  opacity: 1;
}

.menu-card__image {
  position: relative;
  overflow: hidden;
}

.menu-card__image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-mint);
  opacity: 0;
  transition: opacity 0.4s ease;
  mix-blend-mode: multiply;
  pointer-events: none;
}

.menu-card:hover .menu-card__image::after {
  opacity: 0.12;
}

/* --------------------------------------------------
   39. Director (院長挨拶) 特別演出
-------------------------------------------------- */
.director__image.slide-from-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 1.1s ease, transform 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.director__image.slide-from-left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.director__body.slide-from-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 1.1s ease 0.2s, transform 1.2s cubic-bezier(0.22, 1, 0.36, 1) 0.2s;
}

.director__body.slide-from-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.director__body {
  position: relative;
}

/* 大きなクオート装飾 */
.director__body::before {
  content: '\201C';
  position: absolute;
  top: -50px;
  left: -10px;
  font-family: var(--font-serif-en);
  font-size: 160px;
  line-height: 1;
  color: var(--color-mint);
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
}

.director__title,
.director__text,
.director__sign,
.director__label {
  position: relative;
  z-index: 1;
}

/* 院長メッセージ本文を1行ずつ stagger */
.director__text.line-stagger {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.director__body.is-visible .director__text.line-stagger { opacity: 1; transform: translateY(0); }
.director__body.is-visible .director__text.line-stagger:nth-of-type(1) { transition-delay: 0.55s; }
.director__body.is-visible .director__text.line-stagger:nth-of-type(2) { transition-delay: 0.70s; }
.director__body.is-visible .director__text.line-stagger:nth-of-type(3) { transition-delay: 0.85s; }
.director__body.is-visible .director__text.line-stagger:nth-of-type(4) { transition-delay: 1.00s; }

/* --------------------------------------------------
   40. 診療メニュー sticky nav: アクティブ下線
-------------------------------------------------- */
.menu-nav__item a {
  position: relative;
}

.menu-nav__item a.is-active {
  background-color: var(--color-mint);
  color: var(--color-white);
  border-color: var(--color-mint);
}

.menu-nav__item a::before {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 4px;
  height: 1px;
  background: var(--color-white);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.menu-nav__item a.is-active::before {
  transform: scaleX(1);
}

/* --------------------------------------------------
   41. ギャラリー: 下から clip-path で出現
-------------------------------------------------- */
.gallery__item.gallery-mask {
  clip-path: inset(100% 0 0 0);
  transition: clip-path 1.1s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.6s ease;
  opacity: 0;
}

.gallery__item.gallery-mask.is-visible {
  clip-path: inset(0 0 0 0);
  opacity: 1;
}

/* 設備カード: Y軸 flip-in */
.equipment-card.flip-in {
  opacity: 0;
  transform: perspective(800px) rotateY(-20deg) translateY(20px);
  transform-origin: center;
  transition: opacity 0.9s ease, transform 1.0s cubic-bezier(0.22, 1, 0.36, 1);
  backface-visibility: hidden;
}

.equipment-card.flip-in.is-visible {
  opacity: 1;
  transform: perspective(800px) rotateY(0) translateY(0);
}

/* --------------------------------------------------
   42. FAQ アコーディオン強化
-------------------------------------------------- */
.faq__icon::after {
  /* + → × トランジション (45deg → 135deg) */
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.faq__icon::before {
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.faq__item.is-open .faq__icon::before {
  transform: translateY(-50%) rotate(180deg);
}

.faq__item.is-open .faq__icon::after {
  transform: translateX(-50%) rotate(135deg);
}

.faq__content-inner {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease 0.1s, transform 0.5s cubic-bezier(0.22, 1, 0.36, 1) 0.1s;
}

.faq__item.is-open .faq__content-inner {
  opacity: 1;
  transform: translateY(0);
}

/* --------------------------------------------------
   43. SP (767px以下) 軽量化: 重いアニメは無効化
-------------------------------------------------- */
@media (max-width: 767px) {
  /* パララックス・複雑なマスクアニメを抑制 */
  .image-reveal::after {
    display: none;
  }
  .image-reveal img {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .gallery__item.gallery-mask {
    clip-path: none;
    opacity: 1;
  }
  .equipment-card.flip-in {
    transform: none;
    opacity: 1;
  }
  .menu-grid .menu-card:nth-child(even).fade-in {
    transform: translateY(24px);
  }
  /* 文字単位アニメは負荷をかけないために遅延をシンプル化 */
  .hero__title .char {
    animation-duration: 0.5s;
    animation-delay: calc(0.4s + var(--char-i, 0) * 0.025s);
  }
  /* 大きなクオートも非表示 (狭い画面での視認性優先) */
  .director__body::before {
    display: none;
  }
  /* ヒーロー上の細い横線も非表示 */
  .hero::before {
    display: none;
  }
}

/* --------------------------------------------------
   45. Staff Portrait Switcher (3名 × 3シーン切替)
-------------------------------------------------- */
.staff-switcher {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

@media (min-width: 768px) {
  .staff-switcher { grid-template-columns: repeat(3, 1fr); gap: 32px; }
}

.staff-switch-card {
  display: block;
  width: 100%;
  text-align: center;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px 20px 28px;
  transition: box-shadow var(--transition), transform var(--transition);
  position: relative;
  font: inherit;
  color: inherit;
}

.staff-switch-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--color-mint);
}

.staff-switch-card__media {
  width: 200px;
  height: 200px;
  margin: 0 auto 18px;
  position: relative;
  border-radius: var(--radius-full);
  overflow: hidden;
  background: var(--color-aqua);
  isolation: isolate;
}

/* 社長指摘④対応: 画像切替を廃止し、1枚固定で静止表示。transition/sparkleは削除。 */
.staff-switch-card__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 1;
  transform: scale(1);
}

.staff-switch-card__role {
  display: block;
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-sm);
  color: var(--color-aqua-deep);
  letter-spacing: 0.15em;
  margin-bottom: 4px;
}

.staff-switch-card__name {
  display: block;
  font-family: var(--font-mincho);
  font-size: var(--fs-lg);
  font-weight: 500;
  margin-bottom: 10px;
  color: var(--color-text);
}

.staff-switch-card__msg {
  display: block;
  font-size: var(--fs-sm);
  color: var(--color-sub-text);
  line-height: 1.8;
}

/* --------------------------------------------------
   46. Virtual Clinic Tour (4枚 cross-fade)
-------------------------------------------------- */
/* Our Clinic グリッド（vtour置換版・シンプル4枚表示） */
.our-clinic-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 8px;
}

@media (min-width: 768px) {
  .our-clinic-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

.clinic-photo {
  position: relative;
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow-md);
  background: var(--color-aqua);
}

.clinic-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.clinic-photo:hover img {
  transform: scale(1.06);
}

.clinic-photo::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.0) 60%);
  pointer-events: none;
}

.clinic-photo__cap {
  position: absolute;
  left: 20px;
  bottom: 18px;
  z-index: 2;
  color: var(--color-white);
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.clinic-photo__en {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.2em;
  opacity: 0.92;
}

.clinic-photo__ja {
  font-family: var(--font-mincho);
  font-size: clamp(16px, 2vw, 20px);
  letter-spacing: 0.05em;
}

.vtour {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .vtour { grid-template-columns: 5fr 3fr; gap: 32px; align-items: stretch; }
}

.vtour__stage {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  /* 社長指摘⑤対応: aspect-ratio 非対応ブラウザでも高さが0にならないよう min-height を併用 */
  aspect-ratio: 16 / 10;
  min-height: 240px;
  background: var(--color-aqua);
  box-shadow: var(--shadow-md);
}

@media (min-width: 768px) {
  .vtour__stage { min-height: 360px; }
}

.vtour__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
}

.vtour__slide.is-active { opacity: 1; }

.vtour__slide img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.02);
  transition: transform 6s ease;
}

.vtour__slide.is-active img { transform: scale(1.07); }

.vtour__caption {
  position: absolute;
  left: 28px;
  bottom: 26px;
  z-index: 3;
  color: var(--color-white);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.55);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.vtour__caption-en {
  font-family: var(--font-serif-en);
  font-style: italic;
  letter-spacing: 0.2em;
  font-size: var(--fs-sm);
  opacity: 0.9;
}

.vtour__caption-ja {
  font-family: var(--font-mincho);
  font-size: clamp(18px, 2.6vw, 26px);
  letter-spacing: 0.05em;
}

.vtour__caption.is-changing {
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.vtour__caption {
  transition: opacity 0.6s ease, transform 0.6s ease;
}

/* ステップリスト */
.vtour__steps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

@media (min-width: 768px) {
  .vtour__steps { grid-template-columns: 1fr; gap: 8px; }
}

.vtour__step {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-white);
  text-align: left;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition);
}

.vtour__step:hover {
  border-color: var(--color-mint);
  background: var(--color-ice);
}

.vtour__step.is-active {
  background: linear-gradient(135deg, var(--color-aqua) 0%, var(--color-ice) 100%);
  border-color: var(--color-mint-deep);
  box-shadow: var(--shadow-md);
}

.vtour__step-num {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-lg);
  color: var(--color-aqua-deep);
  flex-shrink: 0;
}

.vtour__step.is-active .vtour__step-num { color: var(--color-mint-deep); }

.vtour__step-label {
  font-family: var(--font-mincho);
  font-size: var(--fs-base);
  color: var(--color-text);
}

/* --------------------------------------------------
   47. Menu Showcase (大画面切替 × clip-path リビール)
-------------------------------------------------- */
.menu-showcase {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .menu-showcase { grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
}

.menu-showcase__stage {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--color-aqua);
  box-shadow: var(--shadow-md);
  isolation: isolate;
}

.menu-showcase__slide {
  position: absolute;
  inset: 0;
  /* 上品な左→右リビール */
  clip-path: inset(0 100% 0 0);
  transition: clip-path 0.9s cubic-bezier(0.76, 0, 0.24, 1);
  z-index: 1;
}

.menu-showcase__slide.is-active {
  clip-path: inset(0 0 0 0);
  z-index: 2;
}

.menu-showcase__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 大きな日本語ラベル（オーバーレイ） */
.menu-showcase__big-label {
  position: absolute;
  right: 20px;
  bottom: 16px;
  z-index: 3;
  font-family: var(--font-mincho);
  font-size: clamp(28px, 5vw, 56px);
  color: var(--color-white);
  letter-spacing: 0.08em;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.45);
  transition: opacity 0.4s ease, transform 0.5s ease;
  pointer-events: none;
}

.menu-showcase__big-label.is-changing {
  opacity: 0;
  transform: translateY(10px);
}

/* メニュー切替ボタン */
.menu-showcase__list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

@media (min-width: 1024px) {
  .menu-showcase__list { gap: 14px; }
}

.menu-showcase__btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: 16px 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-white);
  font-family: var(--font-mincho);
  font-size: var(--fs-base);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition);
  text-align: left;
  width: 100%;
}

.menu-showcase__btn span {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-xs);
  color: var(--color-aqua-deep);
  letter-spacing: 0.15em;
}

.menu-showcase__btn:hover {
  border-color: var(--color-mint);
  background: var(--color-ice);
  transform: translateY(-2px);
}

.menu-showcase__btn.is-active {
  background: var(--color-mint);
  color: var(--color-white);
  border-color: var(--color-mint);
  font-size: calc(var(--fs-base) + 1px);
  transform: scale(1.02);
  box-shadow: var(--shadow-md);
}

.menu-showcase__btn.is-active span { color: rgba(255, 255, 255, 0.85); }

/* --------------------------------------------------
   48. 予防歯科ストーリー (Sticky Scroll)
-------------------------------------------------- */
.prev-story {
  background: var(--color-ice);
  padding: var(--section-padding-sp) 0;
}

@media (min-width: 1024px) {
  .prev-story { padding: var(--section-padding-pc) 0; }
}

.prev-story__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

@media (min-width: 768px) {
  .prev-story__layout { grid-template-columns: 5fr 6fr; gap: 48px; align-items: flex-start; }
}

.prev-story__steps {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

@media (min-width: 768px) {
  .prev-story__steps { gap: 28px; padding-top: 16px; }
}

.prev-story__step {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 22px;
  transition: all 0.4s ease;
  cursor: pointer;
}

.prev-story__step:hover {
  border-left-color: var(--color-mint);
  transform: translateX(2px);
}

.prev-story__step:focus-visible {
  outline: 2px solid var(--color-mint);
  outline-offset: 3px;
  border-left-color: var(--color-mint-deep);
}

.prev-story__step.is-active {
  border-left-color: var(--color-mint-deep);
  background: linear-gradient(120deg, var(--color-aqua) 0%, var(--color-white) 60%);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.prev-story__num {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-md);
  color: var(--color-aqua-deep);
  display: block;
  margin-bottom: 4px;
}

.prev-story__step.is-active .prev-story__num { color: var(--color-mint-deep); }

.prev-story__title {
  font-family: var(--font-mincho);
  font-size: var(--fs-lg);
  margin-bottom: 6px;
  color: var(--color-text);
}

.prev-story__text {
  font-size: var(--fs-sm);
  color: var(--color-sub-text);
  line-height: 1.8;
  margin: 0;
}

/* メディア側 (Sticky 大画面) */
.prev-story__media { position: relative; }

.prev-story__sticky {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--color-aqua);
  box-shadow: var(--shadow-md);
}

@media (min-width: 768px) {
  .prev-story__sticky {
    position: sticky;
    top: 100px;
  }
}

.prev-story__image {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: scale(1.04);
  transition: opacity 0.9s ease, transform 1.6s ease;
}

.prev-story__image.is-active {
  opacity: 1;
  transform: scale(1);
}

.prev-story__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --------------------------------------------------
   49. Photo Gallery (about.html) + Lightbox
-------------------------------------------------- */
.photo-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

@media (min-width: 768px) {
  .photo-gallery { grid-template-columns: repeat(4, 1fr); gap: 16px; }
}

.photo-gallery__cell {
  position: relative;
  display: block;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: var(--radius);
  border: 0;
  padding: 0;
  cursor: pointer;
  background: var(--color-aqua);
}

.photo-gallery__cell--wide {
  grid-column: span 2;
  aspect-ratio: 2 / 1;
}

.photo-gallery__cell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease, filter 0.4s ease;
}

.photo-gallery__cell:hover img {
  transform: scale(1.08);
  filter: brightness(0.92);
}

.photo-gallery__cell-label {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  font-family: var(--font-mincho);
  font-size: var(--fs-sm);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.photo-gallery__cell:hover .photo-gallery__cell-label {
  opacity: 1;
  transform: translateY(0);
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 3000;
  background: rgba(20, 30, 35, 0.94);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.lightbox.is-open {
  display: flex;
  animation: lightboxFade 0.3s ease;
}

@keyframes lightboxFade {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.lightbox__figure {
  position: relative;
  max-width: min(1100px, 92vw);
  max-height: 80vh;
  text-align: center;
  margin: 0;
}

.lightbox__img {
  max-width: 100%;
  max-height: 70vh;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  animation: lightboxZoom 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes lightboxZoom {
  from { opacity: 0; transform: scale(0.94); }
  to   { opacity: 1; transform: scale(1); }
}

.lightbox__caption {
  margin-top: 16px;
  color: var(--color-white);
  font-family: var(--font-mincho);
  font-size: var(--fs-base);
  letter-spacing: 0.08em;
}

.lightbox__close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s ease;
}

.lightbox__close:hover { background: rgba(255, 255, 255, 0.32); }

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.lightbox__nav:hover {
  background: var(--color-mint);
}

.lightbox__nav--prev { left: 24px; }
.lightbox__nav--next { right: 24px; }

@media (min-width: 768px) {
  .lightbox__nav--prev { left: 36px; }
  .lightbox__nav--next { right: 36px; }
}

.lightbox__thumbs {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  max-width: 90vw;
  overflow-x: auto;
  padding: 6px 8px;
}

.lightbox__thumb {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 2px solid transparent;
  flex-shrink: 0;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.1);
  padding: 0;
}

.lightbox__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.lightbox__thumb.is-active {
  border-color: var(--color-mint);
  transform: translateY(-2px);
}

body.lightbox-open { overflow: hidden; }

/* --------------------------------------------------
   50. Mobile / Reduced motion 軽量化
-------------------------------------------------- */
@media (max-width: 767px) {
  /* スライドショーは Ken Burns を抑え、表示時間も延長してCPU負荷軽減 */
  .hero__slide img {
    transition: transform 12s ease-out;
  }
  .hero__slide.is-active img {
    transform: scale(1.08);
  }
  /* スマホは上下中央で狭いので、ドットを下端へ */
  .hero__dots { bottom: 16px; }
  .menu-showcase__big-label { font-size: 26px; right: 14px; bottom: 12px; }
  .vtour__caption { left: 18px; bottom: 16px; }
  .photo-gallery__cell-label { opacity: 1; transform: none; }
}

/* --------------------------------------------------
   44. prefers-reduced-motion 対応（最終）
-------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .fade-in,
  .clip-reveal,
  .image-reveal img,
  .image-reveal::after,
  .gallery__item.gallery-mask,
  .equipment-card.flip-in,
  .director__image.slide-from-left,
  .director__body.slide-from-right,
  .director__text.line-stagger,
  .reveal-mask > .reveal-mask__inner,
  .section-label.is-anim,
  .divider-line {
    opacity: 1 !important;
    transform: none !important;
    clip-path: none !important;
  }

  .hero__eyebrow,
  .hero__title,
  .hero__sub,
  .hero__cta,
  .hero__scroll,
  .hero__bg,
  .page-hero__bg,
  .page-hero__title,
  .page-hero__label {
    opacity: 1 !important;
    transform: none !important;
    animation: none !important;
    filter: none !important;
  }

  .hero__title .char,
  .split-chars .char {
    opacity: 1 !important;
    transform: none !important;
    clip-path: none !important;
    animation: none !important;
  }

  .hero::before {
    width: 22% !important;
    animation: none !important;
  }

  .page-loader {
    display: none !important;
  }

  /* スライドショーは1枚目固定 + Ken Burns停止 */
  .hero__slide,
  .hero__slide.is-active,
  .hero__slide img,
  .hero__slide.is-active img {
    transform: none !important;
    transition: none !important;
    animation: none !important;
  }
  .hero__slide:not(.is-active) { opacity: 0 !important; }
  .hero__slide.is-active { opacity: 1 !important; }
  .hero__caption { opacity: 1 !important; transform: none !important; animation: none !important; }
  .hero__dots { display: none !important; }

  /* スタッフ: 1枚固定表示（切替機構は廃止済み） */
  .staff-switch-card__img { transition: none !important; }

  /* バーチャルツアー: 最初のスライドのみ */
  .vtour__slide img,
  .vtour__slide.is-active img { transform: none !important; transition: none !important; }
  .vtour__caption { transition: none !important; }

  /* メニューショウケース: clip-pathを瞬時切替 */
  .menu-showcase__slide { transition: none !important; }

  /* 予防歯科ストーリー: アクティブ画像のみ表示 */
  .prev-story__image { transition: none !important; transform: none !important; }
  .prev-story__sticky { position: static !important; }

  /* ライトボックス内アニメ無効 */
  .lightbox__img { animation: none !important; }
}

/* --------------------------------------------------
   FAILSAFE: JSが完全に止まってもreveal系要素を表示する
   IntersectionObserverが起動しない環境でも、ロード後ちょい遅れで表示
-------------------------------------------------- */
@keyframes failsafeReveal {
  to {
    opacity: 1;
    transform: none;
    clip-path: inset(0);
    filter: none;
  }
}

.fade-in,
.clip-reveal,
.image-reveal,
.gallery-mask,
.flip-in,
.slide-from-left,
.slide-from-right,
.reveal-mask,
.section-label.is-anim {
  animation: failsafeReveal 0.01s linear 1.5s forwards;
}

.fade-in.is-visible,
.clip-reveal.is-visible,
.image-reveal.is-visible,
.gallery-mask.is-visible,
.flip-in.is-visible,
.slide-from-left.is-visible,
.slide-from-right.is-visible,
.reveal-mask.is-visible,
.section-label.is-anim.is-visible {
  animation: none;
}