/* =========================================================
   ○○歯科クリニック — dental.css (Full Rewrite)
   Skova Digital デモサイト
   設計書: dental-fullrewrite-design.md
   カラー: クリーンブルー + ソフトミント デュアルアクセント
   ========================================================= */

/* ================================================================
   1. CSS変数
   ================================================================ */
:root {
  /* ベース */
  --dn-bg:         #f7fafa;
  --dn-surface:    #ffffff;
  --dn-surface2:   #eef5f3;
  --dn-text:       #1a2e3b;
  --dn-muted:      #5a7282;
  --dn-caption:    #4a6478;

  /* アクセント: デュアルカラー */
  --dn-blue:       #1a6acf;
  --dn-blue-lt:    #6eb2f5;
  --dn-blue-bg:    #e8f2fd;
  --dn-mint:       #0a7a60;
  --dn-mint-lt:    #1a9075;
  --dn-mint-bg:    #e6f7f2;

  /* ボーダー・シャドウ */
  --dn-border:     #d4e4de;
  --dn-divider:    #e8f0ed;
  --dn-navy:       #1e3a5f;

  /* シャドウ（ライトテーマ必須） */
  --dn-shadow-sm:  0 1px 3px rgba(26,106,207,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --dn-shadow-md:  0 4px 12px rgba(26,106,207,0.08), 0 2px 4px rgba(0,0,0,0.04);
  --dn-shadow-lg:  0 8px 24px rgba(26,106,207,0.10), 0 4px 8px rgba(0,0,0,0.06);
}

/* ================================================================
   2. リセット・ベーススタイル
   ================================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--dn-bg);
  color: var(--dn-text);
  line-height: 1.9;
  letter-spacing: 0.025em;
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
}

ul, ol {
  list-style: none;
}

/* 日本語タイポグラフィ最適化: 見出しの自然な折り返し制御 */
h1, h2, h3, h4 {
  word-break: auto-phrase;
  text-wrap: pretty;
}

/* ================================================================
   3. デモバナー（ヘッダー内統合）
   ================================================================ */
.demo-banner {
  background: #1a2e3b;
  color: #ffffff;
  text-align: center;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  padding: 0.5rem 1rem;
  position: relative;
  z-index: 9999;
}

.demo-banner a {
  color: #4d97f0;
  text-decoration: underline;
  margin-left: 0.25rem;
}

.demo-banner a:hover {
  opacity: 0.8;
}

.site-header {
  transition: transform 300ms ease;
}

.site-header.hidden-up {
  transform: translateY(-100%);
}

/* ================================================================
   4. ヘッダー（固定・ソリッド背景）
   ================================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: #ffffff;
  border-bottom: 1px solid var(--dn-border);
  box-shadow: 0 1px 8px rgba(26,106,207,0.06);
  display: flex;
  flex-direction: column;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.header-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.header-logo-ja {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dn-text);
  letter-spacing: -0.025em;
}

.header-logo-en {
  font-size: 0.5rem;
  color: #1e6bc7;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
}

.header-nav {
  display: none;
  align-items: center;
  gap: 2rem;
}

.header-nav a {
  font-size: 0.8125rem;
  color: var(--dn-muted);
  letter-spacing: 0.025em;
  transition: color 200ms;
  position: relative;
  padding-bottom: 2px;
}

.header-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--dn-blue);
  transition: width 300ms ease-out;
}

@media (hover: hover) {
  .header-nav a:hover {
    color: var(--dn-blue);
  }
  .header-nav a:hover::after {
    width: 100%;
  }
}

.header-nav a.btn-header-cta {
  background: var(--dn-navy);
  color: #ffffff;
  padding: 0.625rem 1.5rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  border-radius: 4px;
  border: none;
  transition: background 200ms;
  display: inline-block;
  white-space: nowrap;
}

@media (hover: hover) {
  .header-nav a.btn-header-cta:hover {
    background: var(--dn-blue);
    color: #ffffff;
  }
}

.header-mobile-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-tel-link {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--dn-blue);
  letter-spacing: 0.025em;
  min-height: 44px;
  padding: 0.5rem 0.25rem;
}

.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--dn-text);
  transition: all 300ms ease-in-out;
  transform-origin: center;
}

.hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---- モバイルメニュー ---- */
#mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #ffffff;
  z-index: 99;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity 300ms ease-in-out, transform 300ms ease-in-out;
}

#mobile-menu[aria-hidden="false"] {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.mobile-nav a {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--dn-text);
  letter-spacing: -0.025em;
  transition: color 200ms;
}

@media (hover: hover) {
  .mobile-nav a:hover {
    color: var(--dn-blue);
  }
}

.mobile-menu-cta {
  background: var(--dn-blue);
  color: #ffffff !important;
  padding: 1rem 3rem;
  border-radius: 4px;
  font-size: 0.9375rem !important;
  font-weight: 700;
}

.mobile-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--dn-muted);
  cursor: pointer;
}

@media (min-width: 768px) {
  .header-nav {
    display: flex;
  }
  .header-mobile-right {
    display: none;
  }
  .hamburger {
    display: none;
  }
}

/* ================================================================
   5. フッター（ネイビー背景）
   ================================================================ */
.site-footer {
  background: var(--dn-navy);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 2fr;
  gap: 4rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

@media (max-width: 767px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

.footer-logo-ja {
  font-size: 1.125rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.025em;
}

.footer-logo-en {
  font-size: 0.5rem;
  color: var(--dn-blue-lt);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-top: 0.25rem;
  display: block;
  font-weight: 500;
}

.footer-tagline {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.8;
  letter-spacing: 0.025em;
  margin-top: 1rem;
}

.footer-nav-heading {
  font-size: 0.6875rem;
  color: var(--dn-blue-lt);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.footer-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-nav-list a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.025em;
  transition: color 200ms;
}

@media (hover: hover) {
  .footer-nav-list a:hover {
    color: var(--dn-blue-lt);
  }
}

.footer-info-heading {
  font-size: 0.6875rem;
  color: var(--dn-blue-lt);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.footer-info-row {
  display: flex;
  gap: 0.75rem;
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
  letter-spacing: 0.025em;
}

.footer-info-row + .footer-info-row {
  margin-top: 0.75rem;
}

.footer-info-label {
  font-size: 0.625rem;
  color: var(--dn-blue-lt);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 700;
  white-space: nowrap;
  padding-top: 0.2em;
  min-width: 3rem;
}

.footer-bottom {
  padding: 1.5rem 0;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-copyright {
  font-size: 0.75rem;
  color: #a0a6b0;
  letter-spacing: 0.05em;
}

.footer-credit {
  font-size: 0.6875rem;
  color: #a0a6b0;
  letter-spacing: 0.05em;
}

.footer-credit a {
  color: #7ab3f0;
  text-decoration: underline;
  transition: color 200ms;
}

@media (hover: hover) {
  .footer-credit a:hover {
    color: var(--dn-blue-lt);
  }
}

/* ================================================================
   6. セクション共通スタイル
   ================================================================ */
.section-label {
  font-size: 0.6875rem;
  color: var(--dn-blue);
  letter-spacing: 0.4em;
  text-transform: uppercase;
  font-weight: 500;
  display: block;
}

.section-heading {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--dn-text);
  letter-spacing: -0.025em;
  line-height: 1.35;
}

.section-lead {
  font-size: 0.9375rem;
  color: var(--dn-muted);
  line-height: 1.9;
  letter-spacing: 0.025em;
}

/* ---- 共通ボタン ---- */
.btn-primary {
  background: #1a5cb8;
  color: #ffffff;
  padding: 0.875rem 2rem;
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 4px;
  border: none;
  transition: background 200ms;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  min-width: 200px;
}

@media (hover: hover) {
  .btn-primary:hover {
    background: #145099;
  }
}

.btn-secondary {
  border: 1.5px solid var(--dn-blue);
  color: var(--dn-blue);
  padding: 0.875rem 2rem;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 4px;
  transition: all 200ms;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  white-space: nowrap;
  min-width: 200px;
}

@media (hover: hover) {
  .btn-secondary:hover {
    background: var(--dn-blue-bg);
  }
}

/* ================================================================
   7a. ヒーロー — フルブリード写真+オーバーレイ
   ================================================================ */
.hero-section {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.hero-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(247,250,250,0.82);
}

.hero-content-wrap {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  /* オプティカルセンター 上:下 = 4:5 */
  padding-top: 7rem;
  padding-bottom: 8.75rem;
}

@media (min-width: 768px) {
  .hero-content-wrap {
    max-width: 1100px;
    padding-top: 8rem;
    padding-bottom: 10rem;
  }
}

.hero-label {
  font-size: 0.6875rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--dn-blue);
  font-weight: 500;
  display: block;
  margin-bottom: 1.25rem;
  font-weight: 700;
}

.hero-h1 {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 700;
  color: var(--dn-text);
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 1.25rem;
}

.hero-sub {
  font-size: 0.9375rem;
  color: var(--dn-muted);
  line-height: 1.9;
  letter-spacing: 0.025em;
  margin-bottom: 2.5rem;
  max-width: 540px;
}

.hero-cta-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
}
@media (min-width: 768px) {
  .hero-cta-group {
    flex-direction: row;
    align-items: center;
  }
}

.hero-microcopy {
  font-size: 0.75rem;
  color: var(--dn-caption);
  letter-spacing: 0.02em;
}

.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  z-index: 2;
}

.hero-scroll-label {
  font-size: 0.625rem;
  letter-spacing: 0.3em;
  color: var(--dn-muted);
  text-transform: uppercase;
  font-weight: 500;
}

.hero-scroll-line {
  width: 1px;
  height: 48px;
  background: var(--dn-border);
  animation: scrollLine 1.5s ease-in-out infinite;
}

@keyframes scrollLine {
  0%, 100% { opacity: 1; transform: scaleY(1); transform-origin: top; }
  50% { opacity: 0.3; transform: scaleY(0.5); transform-origin: top; }
}

/* ================================================================
   7b. 信頼数字バー — ネイビー背景・4列カウンター
   ================================================================ */
.trust-section {
  background: var(--dn-navy);
  padding: 3.5rem 2rem;
}

.trust-inner {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.trust-item {
  text-align: center;
  padding: 0 1rem;
}

.trust-item + .trust-item {
  border-left: 1px solid rgba(255,255,255,0.15);
}

.trust-number {
  font-family: 'Inter', sans-serif;
  font-size: clamp(1.75rem, 4.5vw, 3rem);
  font-weight: 700;
  color: var(--dn-blue-lt);
  letter-spacing: -0.03em;
  line-height: 1;
}

.trust-unit {
  font-size: 0.6875rem;
  color: #ffffff;
  letter-spacing: 0.1em;
  margin-top: 0.75rem;
}

.trust-desc {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.55);
  margin-top: 0.5rem;
  letter-spacing: 0.02em;
  line-height: 1.6;
}

@media (max-width: 639px) {
  .trust-inner {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  .trust-item + .trust-item {
    border-left: none;
  }
  .trust-item:nth-child(even) {
    border-left: 1px solid rgba(255,255,255,0.15);
  }
  .trust-item:nth-child(n+3) {
    border-top: 1px solid rgba(255,255,255,0.15);
    padding-top: 2rem;
  }
}

/* ================================================================
   7c. 診療フロー — 5ステップ横並び+コネクタ線
   ================================================================ */
.flow-section {
  background: var(--dn-surface);
}

.flow-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

.flow-heading {
  text-align: center;
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--dn-text);
  letter-spacing: -0.025em;
  line-height: 1.35;
}

.flow-heading span {
  color: var(--dn-blue);
}

.flow-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
}

@media (max-width: 767px) {
  .flow-steps {
    grid-template-columns: repeat(5, minmax(160px, 1fr));
    padding-bottom: 1rem;
  }
}

.step-item {
  position: relative;
  padding: 0 1rem;
  text-align: center;
  scroll-snap-align: start;
  opacity: 0;
  transform: translateX(-20px);
}

.step-connector {
  position: absolute;
  right: -1rem;
  top: 2.25rem;
  width: 2rem;
  height: 2px;
  background: var(--dn-border);
  z-index: 0;
}

.step-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--dn-blue-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 0.75rem;
}

.step-icon-wrap svg {
  width: 24px;
  height: 24px;
  color: var(--dn-blue);
}

.step-number {
  font-family: 'Inter', sans-serif;
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--dn-blue);
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.step-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--dn-text);
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.step-desc {
  font-size: 0.8125rem;
  color: var(--dn-muted);
  line-height: 1.8;
  letter-spacing: 0.025em;
}

/* ================================================================
   7d. 診療メニュー — アイコンカード2列+ホバー
   ================================================================ */
.treatment-section {
  background: var(--dn-surface2);
}

.treatment-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 2rem;
}

.treatment-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

@media (max-width: 639px) {
  .treatment-grid {
    grid-template-columns: 1fr;
  }
}

.icon-card {
  background: var(--dn-surface);
  box-shadow: var(--dn-shadow-sm);
  border-radius: 6px;
  padding: 2rem;
  transition: box-shadow 300ms, transform 300ms;
  opacity: 0;
  transform: scale(0.95);
}

@media (hover: hover) {
  .icon-card:hover {
    box-shadow: var(--dn-shadow-md);
    transform: translateY(-2px);
  }
}

.icon-card-icon {
  width: 48px;
  height: 48px;
  color: var(--dn-blue);
  margin-bottom: 1rem;
}

.icon-card-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--dn-text);
  letter-spacing: -0.025em;
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.icon-card-desc {
  font-size: 0.875rem;
  color: var(--dn-muted);
  line-height: 1.9;
  letter-spacing: 0.025em;
  margin-bottom: 1rem;
}

.icon-card-link {
  font-size: 0.8125rem;
  color: var(--dn-blue);
  font-weight: 500;
  letter-spacing: 0.025em;
  transition: color 200ms;
}

@media (hover: hover) {
  .icon-card-link:hover {
    color: var(--dn-blue-lt);
  }
}

/* ================================================================
   7e. 写真バンド — フルブリード・clipPath
   ================================================================ */
.gallery-band {
  width: 100%;
  overflow: hidden;
  clip-path: inset(0 100% 0 0);
}

.gallery-band img,
.gallery-band .img-placeholder {
  width: 100%;
  aspect-ratio: 3 / 1;
  object-fit: cover;
  display: block;
}

@media (max-width: 767px) {
  .gallery-band img,
  .gallery-band .img-placeholder {
    aspect-ratio: 2 / 1;
  }
}

/* ================================================================
   7f. 3つの特徴 — 左ボーダーカード
   ================================================================ */
.feature-section {
  background: var(--dn-bg);
}

.feature-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 2rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

@media (max-width: 639px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
}

.feature-card {
  background: var(--dn-surface);
  box-shadow: var(--dn-shadow-sm);
  padding: 2rem 2rem 2rem 1.75rem;
  border-radius: 4px;
  transition: box-shadow 300ms, transform 300ms;
  border-left: 3px solid var(--dn-blue);
}

.feature-card.mint-border {
  border-left-color: var(--dn-mint);
}

@media (hover: hover) {
  .feature-card:hover {
    box-shadow: var(--dn-shadow-md);
    transform: translateY(-2px);
  }
}

.feature-num {
  font-family: 'Inter', sans-serif;
  font-size: 0.6875rem;
  color: var(--dn-blue);
  letter-spacing: 0.1em;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-card.mint-border .feature-num {
  color: var(--dn-mint);
}

.feature-card-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--dn-text);
  letter-spacing: -0.01em;
  line-height: 1.4;
  margin-bottom: 0.75rem;
}

.feature-card-desc {
  font-size: 0.875rem;
  color: var(--dn-muted);
  line-height: 1.9;
  letter-spacing: 0.025em;
}

/* ================================================================
   7g. 院長・スタッフ — スプリット+3列カード
   ================================================================ */
.staff-section {
  background: var(--dn-surface);
}

.staff-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 2rem;
}

.staff-doctor {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3.5rem;
  align-items: start;
}

@media (max-width: 767px) {
  .staff-doctor {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .staff-photo {
    aspect-ratio: 3/2;
    max-height: 240px;
    object-fit: cover;
    object-position: top center;
  }
}

.staff-photo {
  aspect-ratio: 3/2;
  object-fit: cover;
  object-position: top center;
  border-radius: 6px;
  box-shadow: var(--dn-shadow-md);
  width: 100%;
  max-height: 320px;
}

.staff-role-label {
  font-size: 0.6875rem;
  color: var(--dn-blue);
  letter-spacing: 0.4em;
  text-transform: uppercase;
  font-weight: 500;
  display: block;
  margin-bottom: 0.625rem;
}

.staff-name {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--dn-text);
  letter-spacing: -0.025em;
  line-height: 1.3;
}

.staff-title {
  font-size: 0.875rem;
  color: var(--dn-muted);
  margin-top: 0.25rem;
}

.staff-specs {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem 1.5rem;
  align-items: baseline;
}

.spec-dt {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--dn-blue);
  letter-spacing: 0.1em;
  white-space: nowrap;
  padding-top: 0.1em;
}

.spec-dd {
  font-size: 0.875rem;
  color: var(--dn-muted);
  line-height: 1.7;
}

.staff-quote {
  border-left: 3px solid var(--dn-blue);
  padding-left: 1.25rem;
  font-size: 0.9375rem;
  color: var(--dn-muted);
  line-height: 1.9;
  letter-spacing: 0.025em;
  font-style: italic;
}

.staff-team {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

@media (max-width: 639px) {
  .staff-team {
    grid-template-columns: repeat(2, 1fr);
  }
  .staff-card-photo {
    aspect-ratio: 1/1;
    max-height: 160px;
    object-fit: cover;
    object-position: top center;
  }
}

.staff-card {
  text-align: center;
  opacity: 0;
  transform: translateY(24px);
}

.staff-card-photo {
  aspect-ratio: 1/1;
  object-fit: cover;
  object-position: center;
  border-radius: 6px;
  box-shadow: var(--dn-shadow-sm);
  width: 100%;
  max-height: 280px;
}

.staff-card-name {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--dn-text);
  margin-top: 1rem;
  letter-spacing: -0.01em;
}

.staff-card-role {
  font-size: 0.75rem;
  color: var(--dn-muted);
  margin-top: 0.25rem;
  letter-spacing: 0.05em;
}

.staff-card-msg {
  font-size: 0.8125rem;
  color: var(--dn-muted);
  line-height: 1.8;
  letter-spacing: 0.025em;
  margin-top: 0.75rem;
}

/* ================================================================
   7h. 患者の声 — パステルミント背景・引用符
   ================================================================ */
.voice-section {
  background: var(--dn-mint-bg);
}

.voice-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 2rem;
}

.voice-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

@media (max-width: 639px) {
  .voice-grid {
    grid-template-columns: 1fr;
  }
}

.voice-card {
  background: var(--dn-surface);
  box-shadow: var(--dn-shadow-sm);
  border-radius: 6px;
  padding: 2rem;
  position: relative;
  transition: box-shadow 300ms;
  opacity: 0;
  transform: translateY(24px);
}

@media (hover: hover) {
  .voice-card:hover {
    box-shadow: var(--dn-shadow-md);
  }
}

.voice-card::before {
  content: '\201C';
  position: absolute;
  top: 0.75rem;
  left: 1.25rem;
  font-size: 5rem;
  color: var(--dn-mint-bg);
  line-height: 1;
  font-family: Georgia, serif;
  pointer-events: none;
  user-select: none;
}

.voice-stars {
  display: flex;
  gap: 0.2rem;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.voice-stars span {
  font-size: 0.875rem;
  color: var(--dn-mint);
}

.voice-text {
  font-size: 0.875rem;
  color: var(--dn-muted);
  line-height: 1.9;
  letter-spacing: 0.025em;
  position: relative;
  z-index: 1;
  margin-bottom: 1.25rem;
}

.voice-author {
  font-size: 0.75rem;
  color: var(--dn-caption);
  letter-spacing: 0.05em;
  font-weight: 500;
}

/* ================================================================
   7i. クリニック情報+FAQ — テーブル+アコーディオン
   ================================================================ */
.info-section {
  background: var(--dn-surface2);
}

.info-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 2rem;
}

.info-heading {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--dn-text);
  letter-spacing: -0.025em;
}

.info-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 4rem;
  align-items: start;
}

@media (max-width: 767px) {
  .info-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  color: var(--dn-muted);
}

.info-table tr {
  border-bottom: 1px solid var(--dn-border);
}

.info-table th {
  text-align: left;
  padding: 0.875rem 0;
  color: var(--dn-text);
  font-weight: 700;
  width: 40%;
  vertical-align: top;
}

.info-table td {
  padding: 0.875rem 0;
  line-height: 1.7;
}

.info-table .holiday {
  color: var(--dn-caption);
}

.info-map-placeholder {
  background: linear-gradient(135deg, var(--dn-mint-bg) 0%, var(--dn-border) 100%);
  border-radius: 6px;
  overflow: hidden;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dn-muted);
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  box-shadow: var(--dn-shadow-sm);
  flex-direction: column;
  gap: 0.5rem;
}

/* FAQ */
.faq-wrap {
  max-width: 760px;
  margin: 0 auto;
}

.faq-heading {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--dn-text);
  letter-spacing: -0.025em;
}

.faq-sub {
  font-size: 0.9375rem;
  color: var(--dn-muted);
  margin-top: 0.75rem;
  line-height: 1.7;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 1.25rem 0;
  background: none;
  border: none;
  border-bottom: 1px solid var(--dn-border);
  text-align: left;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--dn-text);
  letter-spacing: 0.025em;
  cursor: pointer;
  transition: color 200ms;
}

.faq-item:first-child .faq-question {
  border-top: 1px solid var(--dn-border);
}

.faq-question[aria-expanded="true"] {
  color: var(--dn-blue);
  border-bottom-color: transparent;
}

@media (hover: hover) {
  .faq-question:hover {
    color: var(--dn-blue);
  }
}

.faq-icon {
  flex-shrink: 0;
  font-size: 1.5rem;
  color: var(--dn-blue);
  font-weight: 400;
  line-height: 1;
  transition: transform 300ms ease-in-out;
  width: 24px;
  text-align: center;
}

.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  overflow: hidden;
  max-height: 0;
  transition: max-height 300ms ease-in-out;
}

.faq-answer-inner {
  padding: 1.25rem 1.5rem 1.5rem;
  font-size: 0.9375rem;
  color: var(--dn-muted);
  line-height: 1.9;
  letter-spacing: 0.025em;
  background: var(--dn-blue-bg);
  border-radius: 4px;
  margin-bottom: 1.25rem;
}

/* ================================================================
   7j. CTA — ネイビービルボード・フォーム
   ================================================================ */
.contact-section {
  background: var(--dn-navy);
}

.contact-center {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
  padding: 0 2rem;
}

.contact-label {
  font-size: 0.6875rem;
  color: var(--dn-blue-lt);
  letter-spacing: 0.4em;
  text-transform: uppercase;
  font-weight: 500;
  display: block;
}

.contact-heading {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.025em;
  line-height: 1.35;
}

.contact-sub {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.9;
}

.contact-form {
  max-width: 520px;
  margin: 0 auto;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.8125rem;
  font-weight: 700;
  color: rgba(255,255,255,0.9);
  letter-spacing: 0.025em;
}

.form-label .required {
  color: var(--dn-blue-lt);
  margin-left: 0.25rem;
  font-size: 0.6875rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1.5px solid rgba(255,255,255,0.2);
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.9375rem;
  color: var(--dn-text);
  background: #ffffff;
  transition: border-color 200ms, box-shadow 200ms;
  letter-spacing: 0.025em;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--dn-blue-lt);
  box-shadow: 0 0 0 3px rgba(26,106,207,0.2);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-select-wrap {
  position: relative;
}

.form-select-wrap::after {
  content: '\25BE';
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--dn-muted);
  pointer-events: none;
  font-size: 0.875rem;
}

.form-select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 2.5rem;
}

.btn-submit {
  width: 100%;
  background: var(--dn-blue);
  color: #ffffff;
  padding: 1.125rem;
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.08em;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background 200ms;
}

@media (hover: hover) {
  .btn-submit:hover {
    background: var(--dn-blue-lt);
  }
}

.form-microcopy {
  text-align: center;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.02em;
  line-height: 1.7;
}

.form-error {
  display: none;
  padding: 1rem;
  background: #fef2f2;
  border: 1px solid #fca5a5;
  border-radius: 4px;
  font-size: 0.875rem;
  color: #dc2626;
}

.form-error.visible {
  display: block;
}

.contact-tel-section {
  text-align: center;
  max-width: 520px;
  margin: 0 auto;
  padding: 0 2rem;
}

.contact-tel-divider {
  width: 48px;
  height: 1px;
  background: rgba(255,255,255,0.2);
  margin: 0 auto;
}

.contact-tel-sub {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.1em;
}

.contact-tel-number {
  font-family: 'Inter', sans-serif;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  color: var(--dn-blue-lt);
  letter-spacing: 0.05em;
  text-decoration: none;
  display: block;
  margin-top: 0.5rem;
}

.contact-tel-note {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.6);
  margin-top: 0.375rem;
  line-height: 1.6;
}

/* ================================================================
   7z. ヒーロー要素アニメーション初期状態
   ================================================================ */
.hero-label,
.hero-h1,
.hero-sub,
.hero-cta-group,
.hero-microcopy {
  opacity: 0;
  transform: translateY(24px);
}

/* ================================================================
   8. .reveal アニメーション初期状態
   ================================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
}

/* ================================================================
   9. prefers-reduced-motion
   ================================================================ */
@media (prefers-reduced-motion: reduce) {
  .hero-label,
  .hero-h1,
  .hero-sub,
  .hero-cta-group,
  .hero-microcopy,
  .reveal,
  .step-item,
  .icon-card,
  .voice-card,
  .staff-card,
  .gallery-band {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
    clip-path: none !important;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto !important;
  }

  .hero-scroll-line {
    animation: none !important;
  }
}

/* ================================================================
   10. プレースホルダー画像スタイル
   ================================================================ */
.img-placeholder {
  background: linear-gradient(135deg, var(--dn-blue-bg) 0%, var(--dn-border) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dn-text);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-align: center;
  padding: 1rem;
  border-radius: 6px;
  font-weight: 600;
}

/* ---- フォーカスリング ---- */
:focus-visible {
  outline: 2px solid var(--dn-blue);
  outline-offset: 2px;
}

/* ---- visually-hidden ---- */
.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;
}