/* ===== CSS Custom Properties ===== */
:root {
  --bg-primary: #F9F6F0;
  --bg-warm: #F5EDE0;
  --bg-amber: #D48C3D;
  --bg-twilight: #4A6B7A;
  --bg-twilight-deep: #2F4A56;
  --bg-straw: #E8D5B7;
  --text-primary: #2B2B2B;
  --text-light: #F9F6F0;
  --text-muted: #7A7568;
  --text-twilight-light: #B8C8D0;
  --line-subtle: #C8BFA8;
  --line-dark: #3A5A6A;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-xxl: 8rem;
  --space-band: 5rem;
  --space-shaft: 12rem;
  --container-max: 1200px;
  --container-narrow: 720px;
  --grid-gap: 2rem;

  --ease-primary: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --duration-fast: 200ms;
  --duration-medium: 400ms;
  --duration-slow: 800ms;
  --duration-dramatic: 1200ms;
}

/* ===== Reset ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  font-family: 'Noto Sans', 'Noto Sans JP', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-primary);
  letter-spacing: 0.01em;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; font-size: inherit; }

/* ===== Language System ===== */
[data-lang="en"] { display: none; }
body.lang-en [data-lang="ja"] { display: none; }
body.lang-en [data-lang="en"] { display: inherit; }
body.lang-en [data-lang="en"].block-display { display: block; }
body.lang-en [data-lang="en"].inline-display { display: inline; }

/* ===== Typography ===== */
.font-display {
  font-family: 'Playfair Display', serif;
  font-weight: 400;
  line-height: 0.9;
  letter-spacing: -0.02em;
}
.font-h1 {
  font-family: 'Playfair Display', serif;
  font-weight: 400;
  line-height: 1.0;
  letter-spacing: -0.01em;
}
.font-h2 {
  font-family: 'Playfair Display', serif;
  font-weight: 400;
  line-height: 1.1;
}
.font-h3 {
  font-family: 'Noto Serif JP', serif;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.02em;
}
.font-body-ja {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 1.125rem;
  line-height: 1.8;
  letter-spacing: 0.04em;
  word-break: keep-all;
  overflow-wrap: break-word;
}
.font-caption {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  line-height: 1.5;
  letter-spacing: 0.03em;
}
.font-label {
  font-family: 'Noto Sans', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.0;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.font-nav {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.04em;
}
.font-price {
  font-family: 'Playfair Display', serif;
  font-weight: 400;
  line-height: 1.0;
}

/* ===== Utility Classes ===== */
.container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 var(--space-md); }
.container-narrow { width: 100%; max-width: var(--container-narrow); margin: 0 auto; padding: 0 var(--space-md); }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-amber { color: var(--bg-amber); }
.text-light { color: var(--text-light); }
.bg-primary { background: var(--bg-primary); }
.bg-warm { background: var(--bg-warm); }
.bg-twilight { background: var(--bg-twilight); }
.bg-straw { background: var(--bg-straw); }

/* ===== Navigation ===== */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 64px;
  background: rgba(249, 246, 240, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-subtle);
  z-index: 100;
  transition: box-shadow var(--duration-fast) var(--ease-smooth);
}
.site-nav.scrolled { box-shadow: 0 1px 12px rgba(0,0,0,0.06); }
.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.nav-brand {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: 0.04em;
}
.nav-links {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}
.nav-links a {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: 0.04em;
  position: relative;
  transition: color var(--duration-fast) var(--ease-smooth);
}
.nav-links a:hover, .nav-links a.active { color: var(--bg-amber); }
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 1px;
  background: var(--bg-amber);
}
.lang-toggle {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--text-muted);
  cursor: pointer;
  letter-spacing: 0.03em;
}
.lang-toggle span { cursor: pointer; transition: color var(--duration-fast); }
.lang-toggle span:hover, .lang-toggle span.active { color: var(--text-primary); }
.lang-toggle span.active { border-bottom: 1px solid var(--bg-amber); }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--space-xs);
}
.hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--text-primary);
  transition: all var(--duration-fast);
}

/* Mobile Nav */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  opacity: 0;
  transition: opacity var(--duration-medium);
}
.mobile-nav-overlay.open { display: flex; opacity: 1; }
.mobile-nav-overlay a {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.5rem, 5vw, 2.5rem);
  color: var(--text-primary);
}
.mobile-nav-overlay .lang-toggle { margin-top: var(--space-md); font-size: 1rem; }

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-twilight-deep);
  color: var(--text-light);
  padding: var(--space-xl) 0 var(--space-lg);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}
.footer-office { display: flex; flex-direction: column; gap: var(--space-xs); }
.footer-office .label {
  font-family: 'Noto Sans', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bg-amber);
  margin-bottom: var(--space-xs);
}
.footer-office p {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--text-twilight-light);
  letter-spacing: 0.03em;
}
.footer-office a { color: var(--bg-amber); transition: opacity var(--duration-fast); }
.footer-office a:hover { opacity: 0.8; }
.footer-legal {
  border-top: 1px solid var(--line-dark);
  padding-top: var(--space-md);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}
.footer-legal a {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--text-twilight-light);
  letter-spacing: 0.03em;
  transition: color var(--duration-fast);
}
.footer-legal a:hover { color: var(--bg-amber); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}
.footer-bottom p, .footer-bottom a, .footer-bottom .lang-toggle {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}
.footer-bottom a { color: var(--bg-amber); cursor: pointer; }

/* ===== Cookie Banner ===== */
.cookie-banner {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--bg-primary);
  border-top: 1px solid var(--line-subtle);
  padding: var(--space-sm) var(--space-md);
  z-index: 200;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}
.cookie-banner.visible { display: flex; }
.cookie-banner p {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--text-primary);
  letter-spacing: 0.03em;
  flex: 1;
  min-width: 200px;
}
.cookie-toggles { display: flex; gap: var(--space-sm); align-items: center; flex-wrap: wrap; }
.cookie-toggle-item { display: flex; align-items: center; gap: var(--space-xs); }
.cookie-toggle-item span {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.toggle-switch {
  width: 40px;
  height: 22px;
  border-radius: 11px;
  background: var(--line-subtle);
  position: relative;
  cursor: pointer;
  transition: background var(--duration-fast);
  flex-shrink: 0;
}
.toggle-switch.on { background: var(--bg-amber); }
.toggle-switch.disabled { opacity: 0.6; cursor: not-allowed; }
.toggle-knob {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--text-light);
  position: absolute;
  top: 2px;
  left: 2px;
  transition: transform var(--duration-fast) var(--ease-smooth);
}
.toggle-switch.on .toggle-knob { transform: translateX(18px); }
.cookie-btn {
  background: var(--bg-amber);
  color: var(--text-light);
  padding: var(--space-xs) var(--space-sm);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  letter-spacing: 0.03em;
  border: none;
  cursor: pointer;
  transition: background var(--duration-fast);
}
.cookie-btn:hover { background: var(--text-primary); }
.cookie-learn { color: var(--bg-amber); font-size: 0.8125rem; }
.cookie-learn:hover { text-decoration: underline; }

/* ===== Hero Section ===== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.hero-bg img {
  width: 110%;
  height: 110%;
  object-fit: cover;
  position: absolute;
  top: -5%; left: -5%;
  animation: ken-burns 20s ease-in-out infinite alternate;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(47, 74, 86, 0.45);
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 700px;
  padding: 0 var(--space-md);
}
.hero-line {
  width: 60px;
  height: 1px;
  background: var(--line-subtle);
  margin: 0 auto var(--space-md);
  transform: scaleX(0);
  animation: line-grow var(--duration-slow) var(--ease-primary) forwards;
}
@keyframes line-grow { to { transform: scaleX(1); } }
.hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 400;
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: var(--text-light);
  text-shadow: 0 2px 40px rgba(0,0,0,0.3);
  margin-bottom: var(--space-sm);
}
.hero h2 {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--text-twilight-light);
  max-width: 480px;
  margin: 0 auto var(--space-md);
}
.hero-caption {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

@keyframes ken-burns {
  0% { transform: scale(1.0) translate(0, 0); }
  50% { transform: scale(1.06) translate(-1%, -0.5%); }
  100% { transform: scale(1.0) translate(0, 0); }
}

/* ===== Section Label ===== */
.section-label {
  font-family: 'Noto Sans', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bg-amber);
  margin-bottom: var(--space-sm);
}

/* ===== Horizontal Band ===== */
.band { padding: var(--space-band) 0; }
.band-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 400;
  line-height: 1.0;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}
.band-subtitle {
  font-family: 'Noto Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: var(--space-lg);
}

/* ===== Vertical Shaft ===== */
.shaft {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-twilight);
  padding: var(--space-xl) var(--space-md);
}
.shaft-content { max-width: var(--container-narrow); text-align: center; }
.shaft h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 400;
  color: var(--text-light);
  margin-bottom: var(--space-lg);
}
.shaft p {
  font-family: 'Noto Sans', sans-serif;
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-twilight-light);
}

/* ===== Route Cards ===== */
.route-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--grid-gap);
}
.route-card {
  background: var(--bg-primary);
  border: 1px solid var(--line-subtle);
  padding: var(--space-md);
  position: relative;
  transition: border-color var(--duration-fast), transform var(--duration-fast), box-shadow var(--duration-fast);
}
.route-card:hover {
  border-color: var(--bg-amber);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(212, 140, 61, 0.08);
}
.route-card .card-label {
  font-family: 'Noto Sans', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bg-amber);
  margin-bottom: var(--space-xs);
}
.route-card h3 {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}
.route-card .card-meta {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  margin-bottom: var(--space-sm);
}
.route-card p {
  font-family: 'Noto Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}
.route-card .card-link {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--bg-amber);
  letter-spacing: 0.03em;
  position: relative;
}
.route-card .card-link::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--bg-amber);
  transition: width var(--duration-fast) var(--ease-smooth);
}
.route-card .card-link:hover::after { width: 100%; }

/* ===== Process Steps ===== */
.process-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  text-align: left;
  margin-top: var(--space-lg);
}
.process-step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--space-md);
  align-items: start;
}
.step-number {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 400;
  color: var(--bg-amber);
  opacity: 0.4;
  line-height: 1;
}
.step-content h4 {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: var(--space-xs);
}
.step-content p {
  font-family: 'Noto Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-twilight-light);
}

/* ===== Package Columns ===== */
.packages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--grid-gap);
  margin-top: var(--space-lg);
}
.package-col {
  border-top: 3px solid var(--line-subtle);
  padding-top: var(--space-md);
}
.package-col.featured {
  border-top-color: var(--bg-amber);
  background: var(--bg-primary);
  padding: var(--space-md);
  box-shadow: 0 4px 24px rgba(0,0,0,0.04);
}
.package-col h3 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}
.package-col .price {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 400;
  color: var(--bg-amber);
  margin-bottom: var(--space-xs);
}
.package-col .price-note {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  margin-bottom: var(--space-sm);
}
.package-col p, .package-col li {
  font-family: 'Noto Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
}
.package-col ul { margin: var(--space-sm) 0; padding-left: var(--space-sm); }
.package-col li { list-style: disc; margin-bottom: var(--space-xs); }
.package-col .pkg-link {
  display: inline-block;
  margin-top: var(--space-sm);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--bg-amber);
  letter-spacing: 0.03em;
  position: relative;
}
.package-col .pkg-link::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--bg-amber);
  transition: width var(--duration-fast);
}
.package-col .pkg-link:hover::after { width: 100%; }

/* ===== Seasonal Routes ===== */
.season-band { padding: var(--space-band) 0; }
.season-band:nth-child(even) { background: var(--bg-warm); }
.season-band:nth-child(odd) { background: var(--bg-primary); }
.season-header {
  margin-bottom: var(--space-lg);
}
.season-header h3 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 400;
  color: var(--text-primary);
  margin-top: var(--space-sm);
}
.route-entry {
  border-bottom: 1px solid var(--line-subtle);
  padding-bottom: var(--space-lg);
  margin-bottom: var(--space-lg);
}
.route-entry:last-child { border-bottom: none; }
.route-entry-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}
.route-entry-meta h4 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}
.route-entry-meta .timing {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--bg-amber);
  letter-spacing: 0.03em;
  margin-bottom: var(--space-sm);
}
.route-entry-desc p {
  font-family: 'Noto Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}
.route-entry-desc p.ja {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 1.125rem;
  line-height: 1.8;
}
.route-entry .practical {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  margin-top: var(--space-sm);
}

/* ===== Article List ===== */
.articles-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}
.article-item:nth-child(even) { margin-top: var(--space-xl); }
.article-item .article-img {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  margin-bottom: var(--space-sm);
}
.article-item .article-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-medium) var(--ease-smooth);
}
.article-item:hover .article-img img { transform: scale(1.03); }
.article-item .article-date {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  margin-bottom: var(--space-xs);
}
.article-item .article-author {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  margin-bottom: var(--space-xs);
}
.article-item h3 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
  transition: color var(--duration-fast);
}
.article-item:hover h3 { color: var(--bg-amber); }
.article-item p {
  font-family: 'Noto Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}
.article-item .read-link {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--bg-amber);
  letter-spacing: 0.03em;
}

/* ===== Article Detail ===== */
.article-detail { padding: var(--space-xl) 0; }
.article-detail .featured-img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  margin-bottom: var(--space-lg);
}
.article-detail .article-meta {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  margin-bottom: var(--space-sm);
}
.article-detail h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}
.article-body p {
  font-family: 'Noto Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}
.article-body p.ja {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 1.125rem;
  line-height: 1.8;
}
.back-link {
  display: inline-block;
  margin-top: var(--space-lg);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--bg-amber);
  letter-spacing: 0.03em;
}
.back-link:hover { text-decoration: underline; }

/* ===== Staff Profiles ===== */
.staff-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  text-align: center;
}
.staff-portrait {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--bg-straw);
  margin: 0 auto var(--space-sm);
}
.staff-grid h4 {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}
.staff-grid .role {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--bg-amber);
  letter-spacing: 0.03em;
  margin-bottom: var(--space-sm);
}
.staff-grid p {
  font-family: 'Noto Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-muted);
}

/* ===== Contact Form ===== */
.contact-form { max-width: 640px; margin: 0 auto; }
.form-group { margin-bottom: var(--space-md); }
.form-group label {
  display: block;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  margin-bottom: var(--space-xs);
}
.form-group label .required { color: var(--bg-amber); margin-left: 2px; }
.form-group input[type="text"],
.form-group input[type="email"],
.form-group select,
.form-group textarea {
  width: 100%;
  border: none;
  border-bottom: 1px solid var(--line-subtle);
  background: transparent;
  padding: var(--space-xs) 0;
  font-family: 'Noto Sans', sans-serif;
  font-size: 1rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--duration-fast);
  border-radius: 0;
}
.form-group select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%237A7568' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0 center;
  padding-right: var(--space-sm);
  cursor: pointer;
}
.form-group textarea {
  border: 1px solid var(--line-subtle);
  padding: var(--space-sm);
  min-height: 160px;
  resize: vertical;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--bg-amber); }
.form-group input.error,
.form-group textarea.error { border-color: #C44; }
.form-group .checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
}
.form-group input[type="checkbox"] {
  width: 18px;
  height: 18px;
  border: 1px solid var(--line-subtle);
  border-radius: 2px;
  accent-color: var(--bg-amber);
  flex-shrink: 0;
  margin-top: 2px;
}
.form-group .checkbox-group label {
  font-size: 0.875rem;
  color: var(--text-primary);
  line-height: 1.5;
}
.form-group .checkbox-group label a { color: var(--bg-amber); text-decoration: underline; }
.submit-btn {
  background: var(--bg-amber);
  color: var(--text-light);
  padding: var(--space-sm) var(--space-lg);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  border: none;
  cursor: pointer;
  transition: background var(--duration-fast), transform var(--duration-fast);
}
.submit-btn:hover { background: var(--text-primary); transform: translateY(-1px); }

/* ===== Route Map Page ===== */
.region-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
}
.region-filter {
  border: 1px solid var(--line-subtle);
  background: transparent;
  padding: var(--space-xs) var(--space-sm);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--duration-fast);
}
.region-filter:hover { border-color: var(--bg-amber); }
.region-filter.active {
  background: var(--bg-amber);
  color: var(--text-light);
  border-color: var(--bg-amber);
}
.map-container { margin-bottom: var(--space-lg); }
.map-container svg { width: 100%; max-width: 600px; margin: 0 auto; display: block; }
.map-region {
  fill: var(--bg-straw);
  stroke: var(--line-subtle);
  stroke-width: 1px;
  transition: fill var(--duration-fast) var(--ease-smooth);
  cursor: pointer;
}
.map-region:hover { fill: var(--bg-amber); opacity: 0.6; }
.map-region.active { fill: var(--bg-amber); opacity: 0.8; }

.route-list-item {
  border-bottom: 1px solid var(--line-subtle);
  padding: var(--space-md) 0;
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: var(--space-md);
  align-items: start;
}
.route-list-item:last-child { border-bottom: none; }
.route-list-item h4 {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}
.route-list-item .timing {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--bg-amber);
  letter-spacing: 0.03em;
}
.route-list-item p {
  font-family: 'Noto Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
}
.route-list-item .detail-link {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--bg-amber);
  letter-spacing: 0.03em;
  text-align: right;
}
.route-list-item .detail-link:hover { text-decoration: underline; }

.editorial-note {
  background: var(--bg-straw);
  padding: var(--space-md);
  border-radius: 2px;
  max-width: var(--container-narrow);
  margin: var(--space-lg) auto 0;
  text-align: center;
}
.editorial-note p {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  line-height: 1.7;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  margin-bottom: var(--space-sm);
}
.breadcrumb a { color: var(--text-muted); transition: color var(--duration-fast); }
.breadcrumb a:hover { color: var(--bg-amber); }
.breadcrumb span { color: var(--text-primary); }

/* ===== Thank You / 404 ===== */
.thankyou-shaft,
.notfound-shaft {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-md);
}
.thankyou-shaft { background: var(--bg-twilight); }
.notfound-shaft { background: var(--bg-primary); }
.thankyou-shaft .check-icon,
.notfound-shaft .error-code {
  margin-bottom: var(--space-md);
}
.notfound-shaft .error-code {
  font-family: 'Playfair Display', serif;
  font-size: clamp(4rem, 12vw, 10rem);
  color: var(--line-subtle);
  opacity: 0.5;
  line-height: 1;
}
.thankyou-shaft h1,
.notfound-shaft h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 400;
  margin-bottom: var(--space-sm);
}
.thankyou-shaft h1 { color: var(--text-light); }
.notfound-shaft h1 { color: var(--text-primary); }
.thankyou-shaft p,
.notfound-shaft p {
  font-family: 'Noto Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  max-width: 480px;
  margin: 0 auto var(--space-md);
}
.thankyou-shaft p { color: var(--text-twilight-light); }
.notfound-shaft p { color: var(--text-muted); }
.thankyou-shaft a,
.notfound-shaft a {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8125rem;
  color: var(--bg-amber);
  letter-spacing: 0.03em;
}
.thankyou-shaft a:hover,
.notfound-shaft a:hover { text-decoration: underline; }

/* ===== Legal Pages ===== */
.legal-page { padding: var(--space-xl) 0; }
.legal-page h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}
.legal-page h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 400;
  color: var(--text-primary);
  margin: var(--space-lg) 0 var(--space-sm);
}
.legal-page p {
  font-family: 'Noto Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}
.legal-page p.ja {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 1.125rem;
  line-height: 1.8;
}
.legal-page dl {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-xs) var(--space-md);
  margin-bottom: var(--space-sm);
}
.legal-page dt {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}
.legal-page dd {
  font-family: 'Noto Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
}
.legal-page a { color: var(--bg-amber); text-decoration: underline; }
.legal-page ul { margin: var(--space-sm) 0 var(--space-sm) var(--space-md); }
.legal-page li {
  font-family: 'Noto Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
  list-style: disc;
}

/* ===== Scroll Reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity var(--duration-slow) var(--ease-primary), transform var(--duration-slow) var(--ease-primary);
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.12s; }
.reveal-delay-2 { transition-delay: 0.24s; }
.reveal-delay-3 { transition-delay: 0.36s; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .nav-links { gap: var(--space-sm); }
  .nav-links a { font-size: 0.875rem; }
}

@media (max-width: 768px) {
  :root {
    --space-lg: 3rem;
    --space-xl: 4rem;
    --space-xxl: 5rem;
    --space-band: 3rem;
    --space-shaft: 6rem;
  }
  .nav-links, .site-nav .lang-toggle { display: none; }
  .hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-md); }
  .packages-grid { grid-template-columns: 1fr; }
  .route-entry-grid { grid-template-columns: 1fr; }
  .articles-list { grid-template-columns: 1fr; }
  .article-item:nth-child(even) { margin-top: 0; }
  .staff-grid { grid-template-columns: 1fr; }
  .process-step { grid-template-columns: 60px 1fr; }
  .route-list-item { grid-template-columns: 1fr; gap: var(--space-sm); }
  .route-list-item .detail-link { text-align: left; }
  .legal-page dl { grid-template-columns: 1fr; gap: 0; }
  .legal-page dt { margin-top: var(--space-sm); }
  @keyframes ken-burns {
    0% { transform: scale(1.0) translate(0, 0); }
    50% { transform: scale(1.03) translate(-0.5%, -0.25%); }
    100% { transform: scale(1.0) translate(0, 0); }
  }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .hero-bg img { animation: none; }
  .reveal { opacity: 1; transform: none; }
}