/* ============ G: ストーリーテリング縦長型 ============
 * 構造そのものがA〜Fと違う：章立て・段階的訴求・ブランド体験
 * 配色：深ネイビー × 金茶 × 白／黒交互背景
 * フォント：明朝メイン・大きめ・余白多
 * ============================================ */

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Serif JP', serif;
  color: #1a2332;
  line-height: 2.1;
  background: #ffffff;
  -webkit-font-smoothing: antialiased;
  font-weight: 400;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

:root {
  --navy: #1a2332;          /* 深ネイビー */
  --navy-deep: #0d131e;
  --gold: #b89968;          /* 金茶 */
  --gold-light: #d4ba8a;
  --paper: #fafaf6;
  --paper-deep: #f0ece2;
  --ink: #1a2332;
  --ink-soft: #4a5568;
  --ink-light: #8b95a6;
  --line: #d8d2c4;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ============ HEADER（透過オーバーレイ） ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: linear-gradient(180deg, rgba(0,0,0,0.5) 0%, transparent 100%);
  padding: 24px 0;
}
.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.logo-text {
  font-family: 'Noto Serif JP', serif;
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 4px;
  color: #fff;
}
.nav-pc {
  display: flex;
  gap: 32px;
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 15px;
  color: #fff;
  letter-spacing: 2px;
}
.nav-pc a { transition: opacity 0.2s; }
.nav-pc a:hover { opacity: 0.7; }
.header-cta {
  color: #fff !important;
  font-size: 13px;
  letter-spacing: 2px;
  border: 1px solid rgba(255,255,255,0.6);
  padding: 8px 20px;
  transition: all 0.2s;
}
.header-cta:hover { background: rgba(255,255,255,0.15); border-color: #fff; }

/* ============ HERO（フルスクリーン） ============ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-color: var(--navy);
  filter: brightness(0.55);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at center, rgba(26,35,50,0.4) 0%, rgba(26,35,50,0.85) 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 100px 32px;
  max-width: 900px;
}
.hero-pre {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 16px;
  letter-spacing: 6px;
  color: var(--gold-light);
  margin-bottom: 40px;
}
.hero-title {
  font-family: 'Noto Serif JP', serif;
  font-size: 64px;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: 10px;
  margin-bottom: 36px;
  text-shadow: 0 2px 24px rgba(0,0,0,0.4);
}
.hero-sub {
  font-size: 16px;
  line-height: 2.2;
  letter-spacing: 4px;
  margin-bottom: 80px;
  opacity: 0.9;
}
.hero-scroll {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 13px;
  letter-spacing: 5px;
  color: var(--gold-light);
}
.hero-line {
  width: 1px;
  height: 60px;
  background: var(--gold-light);
  animation: scroll-pulse 2s ease-in-out infinite;
}
@keyframes scroll-pulse {
  0%, 100% { opacity: 0.4; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ============ CHAPTER COMMON ============ */
.chapter {
  padding: 160px 0;
  position: relative;
}
.chapter-light {
  background: var(--paper);
  color: var(--ink);
}
.chapter-dark {
  background: var(--navy);
  color: var(--paper);
}
.ch-photo {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 280px;
  background-size: cover;
  background-position: center;
  opacity: 0.5;
  filter: blur(1px);
}
.chapter-dark .ch-photo {
  filter: brightness(0.4) sepia(0.3) blur(0.5px);
  opacity: 0.7;
}

.ch-num {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 14px;
  letter-spacing: 6px;
  color: var(--gold);
  margin-bottom: 28px;
  text-align: center;
  position: relative;
  z-index: 2;
}
.chapter-dark .ch-num { color: var(--gold-light); }

.ch-title {
  font-family: 'Noto Serif JP', serif;
  font-size: 44px;
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: 6px;
  text-align: center;
  margin-bottom: 72px;
  position: relative;
  z-index: 2;
}
.ch-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 1px;
  background: var(--gold);
  margin: 36px auto 0;
}
.chapter-dark .ch-title::after { background: var(--gold-light); }

.ch-body {
  text-align: center;
  font-size: 17px;
  line-height: 2.6;
  letter-spacing: 3px;
  position: relative;
  z-index: 2;
}
.ch-body p {
  margin-bottom: 32px;
}
.ch-body em {
  font-style: normal;
  font-weight: 500;
  color: var(--gold);
  border-bottom: 1px solid var(--gold);
  padding: 0 4px 2px;
}
.chapter-dark .ch-body em {
  color: var(--gold-light);
  border-bottom-color: var(--gold-light);
}

/* ============ CHAPTER 3：四季 ============ */
.ch-intro {
  text-align: center;
  font-size: 16px;
  line-height: 2.4;
  letter-spacing: 3px;
  color: var(--ink-soft);
  margin-bottom: 72px;
  position: relative;
  z-index: 2;
}
.seasons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 2;
}
.season {
  background: #fff;
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform 0.3s;
}
.season:hover { transform: translateY(-4px); }
.season-img {
  aspect-ratio: 4 / 5;
  background-size: cover;
  background-position: center;
  filter: sepia(0.15);
}
.season figcaption {
  padding: 28px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.season-label {
  display: block;
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 13px;
  letter-spacing: 4px;
  color: var(--gold);
  margin-bottom: 12px;
  min-height: 2em;
}
.season h3 {
  font-family: 'Noto Serif JP', serif;
  font-size: 26px;
  font-weight: 500;
  letter-spacing: 8px;
  color: var(--ink);
  margin-bottom: 16px;
}
.season p {
  font-size: 13px;
  line-height: 2.1;
  letter-spacing: 0.5px;
  color: var(--ink-soft);
  word-break: auto-phrase;
}

/* ============ CHAPTER 4：CTA ============ */
.chapter-cta .ch-cta-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 64px;
  position: relative;
  z-index: 2;
}
.ch-cta {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--gold-light);
  padding: 28px 40px;
  text-align: center;
  transition: all 0.2s;
  min-width: 280px;
}
.ch-cta:hover {
  background: var(--gold-light);
  color: var(--navy) !important;
}
.ch-cta-label {
  display: block;
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 12px;
  letter-spacing: 4px;
  color: var(--gold-light);
  margin-bottom: 10px;
}
.ch-cta:hover .ch-cta-label { color: var(--navy); opacity: 0.7; }
.ch-cta-value {
  display: block;
  font-family: 'Noto Serif JP', serif;
  font-size: 24px;
  font-weight: 500;
  letter-spacing: 2px;
  color: #fff;
}
.ch-cta:hover .ch-cta-value { color: var(--navy); }
.ch-cta-secondary .ch-cta-value { font-size: 18px; letter-spacing: 3px; }

/* ============ EPILOGUE ============ */
.epilogue {
  padding: 140px 0;
  background: var(--paper-deep);
}
.epilogue .ch-title { margin-bottom: 56px; }
.epilogue-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px;
}
.epi-item {
  display: flex;
  flex-direction: column;
  background: #fff;
  padding: 36px 28px;
  text-align: center;
  border: 1px solid var(--line);
  transition: all 0.2s;
}
.epi-item:hover {
  border-color: var(--gold);
  transform: translateY(-3px);
}
.epi-item h3 {
  font-family: 'Noto Serif JP', serif;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--ink);
  margin-bottom: 14px;
  word-break: keep-all;
}
.epi-item p {
  font-size: 13px;
  line-height: 2;
  letter-spacing: 0.5px;
  color: var(--ink-soft);
  margin-bottom: 20px;
  word-break: auto-phrase;
}
.epi-price {
  margin-top: auto;
  display: block;
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 15px;
  color: var(--gold);
  border-top: 1px solid var(--line);
  padding-top: 14px;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

/* ============ CONTACT ============ */
.contact {
  padding: 140px 0;
  background: var(--navy);
  color: var(--paper);
  text-align: center;
}
.contact .ch-title { color: #fff; }
.contact .ch-num { color: var(--gold-light); }
.contact-lead {
  font-size: 15px;
  line-height: 2.2;
  letter-spacing: 3px;
  opacity: 0.85;
  margin-bottom: 56px;
}
.form {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
  text-align: left;
}
.form input, .form textarea {
  padding: 16px 18px;
  border: none;
  border-bottom: 1px solid rgba(212, 186, 138, 0.4);
  background: transparent;
  color: #fff;
  font-size: 14px;
  font-family: inherit;
  letter-spacing: 1px;
}
.form input::placeholder, .form textarea::placeholder {
  color: rgba(212, 186, 138, 0.6);
}
.form input:focus, .form textarea:focus {
  outline: none;
  border-bottom-color: var(--gold-light);
}
.form button {
  margin-top: 24px;
  padding: 18px 36px;
  background: transparent;
  color: #fff;
  border: 1px solid var(--gold-light);
  font-family: 'Noto Serif JP', serif;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 6px;
  cursor: pointer;
  transition: all 0.2s;
}
.form button:hover {
  background: var(--gold-light);
  color: var(--navy);
}

/* ============ FOOTER ============ */
.site-footer {
  background: var(--navy-deep);
  color: var(--paper);
  padding: 64px 32px 32px;
  text-align: center;
}
.footer-logo {
  font-family: 'Noto Serif JP', serif;
  font-size: 24px;
  font-weight: 500;
  letter-spacing: 6px;
  margin-bottom: 12px;
}
.footer-tag {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 14px;
  letter-spacing: 5px;
  color: var(--gold-light);
  margin-bottom: 32px;
}
.footer-info {
  font-size: 13px;
  letter-spacing: 2px;
  opacity: 0.75;
  margin-bottom: 24px;
}
.copyright {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 12px;
  letter-spacing: 4px;
  opacity: 0.55;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  .seasons { grid-template-columns: repeat(2, 1fr); }
  .epilogue-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-pc { display: none; }
  .header-inner { padding: 0 24px; gap: 12px; }
  .hero-title { font-size: 36px; letter-spacing: 6px; line-height: 1.6; }
  .hero-sub { font-size: 14px; letter-spacing: 2px; margin-bottom: 48px; }
  .chapter { padding: 96px 0; }
  .ch-title { font-size: 28px; letter-spacing: 4px; margin-bottom: 48px; }
  .ch-body { font-size: 15px; line-height: 2.4; letter-spacing: 2px; }
  .seasons { grid-template-columns: 1fr; padding: 0 24px; }
  .epilogue { padding: 80px 0; }
  .epilogue-grid { grid-template-columns: 1fr; padding: 0 24px; }
  .contact { padding: 80px 0; }
  .ch-cta { min-width: auto; width: 100%; }
}