:root{
  --paper:#FFFCF5;
  --paper-soft:#FBF6EA;
  --card:#FFFFFF;
  --line:#EDE4D0;
  --ink:#2B2620;
  --ink-soft:#6E6656;
  --ink-faint:#9A927E;
  --coral:#E85D3B;
  --coral-soft:#FCEAE2;
  --teal:#1C8A88;
  --teal-soft:#E4F3EF;
  --gold:#E3A234;
  --gold-soft:#FCF0DA;
  --leaf:#4C8E52;
  --shadow: 0 18px 40px -22px rgba(60,45,20,0.28);
  --shadow-sm: 0 8px 20px -14px rgba(60,45,20,0.3);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans JP",sans-serif;
  -webkit-font-smoothing:antialiased;
}
.disp{font-family:"Shippori Mincho",serif;}
a{color:inherit; text-decoration:none;}
img,svg{display:block; max-width:100%;}
.wrap{max-width:1120px; margin:0 auto; padding:0 24px;}

/* ---------- NAV ---------- */
.site-nav{
  position:sticky; top:0; z-index:60;
  background:rgba(255,252,245,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.site-nav .wrap{
  display:flex; align-items:center; justify-content:space-between;
  padding:15px 24px;
}
.brand{
  display:flex; align-items:center; gap:9px;
  font-family:"Shippori Mincho",serif; font-weight:600; font-size:16.5px;
  letter-spacing:.03em;
}
.brand .mark{
  width:30px; height:30px; border-radius:9px;
  background:linear-gradient(135deg,var(--coral),var(--gold));
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-size:14px;
}
.brand-sub{ font-size:10.5px; color:var(--ink-faint); letter-spacing:.14em; display:none;}
@media(min-width:640px){ .brand-sub{display:inline;margin-left:8px;} }
.nav-link{
  font-size:13px; font-weight:500; color:var(--ink-soft);
  padding:8px 14px; border-radius:99px; border:1px solid transparent;
}
.nav-link:hover{ border-color:var(--line); color:var(--ink); }

/* ---------- BUTTONS / CHIPS ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:12px 22px; border-radius:99px;
  font-size:13.5px; font-weight:700;
  background:var(--ink); color:#fff;
  border:1px solid var(--ink);
}
.btn.ghost{ background:transparent; color:var(--ink); border-color:var(--line); }
.btn.coral{ background:var(--coral); border-color:var(--coral); }
.tag{
  display:inline-block; font-size:11.5px; font-weight:600;
  padding:5px 13px; border-radius:99px;
  background:var(--paper-soft); color:var(--ink-soft);
  border:1px solid var(--line);
}
.pref-badge{
  display:inline-flex; align-items:center; gap:6px;
  font-size:11.5px; font-weight:700; letter-spacing:.06em;
  color:var(--coral); text-transform:none;
}

/* ---------- FOOTER ---------- */
.site-footer{
  margin-top:60px; padding:52px 24px 60px;
  border-top:1px solid var(--line);
  text-align:center;
}
.site-footer .disp{ font-size:18px; margin-bottom:10px; }
.site-footer p{ font-size:12px; color:var(--ink-faint); max-width:640px; margin:0 auto; line-height:1.9; }
.footer-note{
  max-width:920px; margin:0 auto 30px; padding:18px 20px;
  background:var(--paper-soft); border:1px solid var(--line); border-radius:14px;
  font-size:12px; line-height:1.85; color:var(--ink-soft); text-align:left;
}

/* ================= INDEX PAGE ================= */
.hero-index{
  position:relative; overflow:hidden;
  padding:86px 24px 54px; text-align:center;
}
.hero-index .eyebrow{
  font-size:12px; letter-spacing:.26em; color:var(--coral); font-weight:700; margin-bottom:18px;
}
.hero-index h1{
  font-family:"Shippori Mincho",serif; font-weight:800;
  font-size:clamp(36px,6.4vw,68px); line-height:1.3; margin:0 0 20px;
}
.hero-index h1 span{ color:var(--coral); }
.hero-index p.lede{
  max-width:580px; margin:0 auto 36px; color:var(--ink-soft);
  font-size:15.5px; line-height:1.9;
}
.stat-row{
  display:flex; justify-content:center; gap:0; flex-wrap:wrap;
  max-width:620px; margin:0 auto 50px;
}
.stat-row div{ padding:0 24px; border-left:1px solid var(--line); text-align:left; }
.stat-row div:first-child{ border-left:none; }
.stat-row b{ display:block; font-family:"Shippori Mincho",serif; font-size:26px; }
.stat-row span{ font-size:11px; color:var(--ink-faint); }

.ridge-wrap{ max-width:1000px; margin:0 auto; }

.method{
  background:var(--paper-soft);
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  padding:56px 24px;
}
.method .wrap{ display:grid; grid-template-columns:1fr; gap:26px; }
@media(min-width:760px){ .method .wrap{grid-template-columns:0.8fr 1.2fr; align-items:start;} }
.method-tag{ font-size:11.5px; letter-spacing:.2em; color:var(--coral); font-weight:700; margin-bottom:10px; }
.method h2{ font-family:"Shippori Mincho",serif; font-size:26px; margin:0; line-height:1.5; }
.method p{ margin:0 0 16px; line-height:2; color:var(--ink-soft); font-size:14.5px; }
.source-row{ display:flex; flex-wrap:wrap; gap:8px; }

.filter-bar{
  position:sticky; top:60px; z-index:50;
  background:var(--paper); border-bottom:1px solid var(--line);
  padding:16px 24px;
}
.filter-bar .wrap{ display:flex; gap:9px; flex-wrap:wrap; align-items:center; }
.filter-bar .fx-label{ font-size:11px; color:var(--ink-faint); letter-spacing:.08em; margin-right:4px; }
.chip{
  font-family:"Noto Sans JP",sans-serif; font-size:12.5px; font-weight:600;
  padding:7px 16px; border-radius:99px; border:1px solid var(--line);
  background:#fff; color:var(--ink-soft); cursor:pointer;
}
.chip:hover{ border-color:var(--coral); color:var(--coral); }
.chip.active{ background:var(--ink); border-color:var(--ink); color:#fff; }

.grid-list{
  max-width:1120px; margin:0 auto; padding:54px 24px 30px;
  display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:26px;
}
.card{
  background:var(--card); border:1px solid var(--line); border-radius:20px;
  overflow:hidden; box-shadow:var(--shadow-sm);
  display:flex; flex-direction:column; transition:transform .18s ease, box-shadow .18s ease;
}
.card.hide{ display:none; }
.card:hover{ transform:translateY(-4px); box-shadow:var(--shadow); }
.card-art{ height:150px; position:relative; }
.card-art svg{ width:100%; height:100%; }
.card-num{
  position:absolute; top:12px; left:14px;
  font-family:"Shippori Mincho",serif; font-weight:700; font-size:13px;
  color:#fff; background:rgba(30,25,15,0.35); padding:3px 11px; border-radius:99px;
  backdrop-filter:blur(3px);
}
.card-body{ padding:20px 22px 24px; display:flex; flex-direction:column; gap:10px; flex:1; }
.card-body h3{ font-family:"Shippori Mincho",serif; font-size:19px; margin:2px 0 0; line-height:1.5; }
.card-area{ font-size:11.5px; color:var(--ink-faint); }
.card-kicker{ font-size:13px; color:var(--ink-soft); line-height:1.7; flex:1; }
.card-tags{ display:flex; flex-wrap:wrap; gap:6px; }
.card-tags span{ font-size:10.5px; padding:3px 10px; border-radius:99px; background:var(--paper-soft); color:var(--ink-soft); }
.card-more{
  margin-top:6px; font-size:12.5px; font-weight:700; color:var(--coral);
  display:inline-flex; align-items:center; gap:5px;
}

/* ================= DETAIL PAGE ================= */
.crumb{
  font-size:12px; color:var(--ink-faint); padding:16px 24px 0;
  max-width:1120px; margin:0 auto;
}
.crumb a{ color:var(--ink-soft); }
.crumb a:hover{ color:var(--coral); }

.hero-detail{ position:relative; margin:18px 24px 0; border-radius:26px; overflow:hidden; }
.hero-detail-inner{ max-width:1120px; margin:0 auto; position:relative; }
.hero-art{ width:100%; height:clamp(220px,34vw,360px); display:block; }
.hero-caption{
  position:absolute; left:0; right:0; bottom:0; padding:28px 34px;
  background:linear-gradient(0deg, rgba(20,16,8,0.55), rgba(20,16,8,0));
  color:#fff;
}
.hero-caption .pref-badge{ color:#FFE3B0; }
.hero-caption h1{
  font-family:"Shippori Mincho",serif; font-weight:700;
  font-size:clamp(24px,3.6vw,38px); margin:6px 0 4px; line-height:1.4;
}
.hero-caption .kicker{ font-size:13.5px; color:#F4EEDC; opacity:.9; }

.detail-body{ max-width:1120px; margin:0 auto; padding:40px 24px 10px; display:grid; grid-template-columns:1fr; gap:40px; }
@media(min-width:860px){ .detail-body{ grid-template-columns: 1.5fr 1fr; } }

.section-title{
  font-family:"Shippori Mincho",serif; font-size:19px; font-weight:600;
  margin:0 0 14px; display:flex; align-items:center; gap:9px;
}
.section-title::before{
  content:""; width:7px; height:7px; border-radius:50%; background:var(--coral); display:inline-block;
}
.lede-text{ font-size:15px; line-height:2.05; color:var(--ink); margin:0 0 8px; }
.review-quote{
  margin:22px 0 0; padding:18px 20px; border-radius:14px;
  background:var(--teal-soft); border:1px solid #CFE9E3;
  font-size:13.5px; line-height:1.95; color:#245452;
}
.review-quote b{ display:block; font-size:11.5px; letter-spacing:.08em; color:var(--teal); margin-bottom:6px; }

.tag-row{ display:flex; flex-wrap:wrap; gap:8px; margin:20px 0 0; }

.info-card{
  background:var(--card); border:1px solid var(--line); border-radius:18px;
  padding:22px 24px; margin-bottom:22px; box-shadow:var(--shadow-sm);
}
.kv-list{ list-style:none; margin:0; padding:0; }
.kv-list li{
  display:flex; justify-content:space-between; gap:14px;
  padding:10px 0; border-bottom:1px dashed var(--line);
  font-size:13px; line-height:1.7;
}
.kv-list li:last-child{ border-bottom:none; }
.kv-list .k{ color:var(--ink-faint); flex:0 0 34%; font-weight:600; font-size:12px; }
.kv-list .v{ color:var(--ink); flex:1; text-align:right; }

.facility-list{ list-style:none; margin:0; padding:0; display:grid; gap:10px; }
.facility-list li{
  font-size:13px; line-height:1.7; padding-left:20px; position:relative; color:var(--ink-soft);
}
.facility-list li::before{
  content:"✓"; position:absolute; left:0; top:1px; color:var(--leaf); font-weight:700; font-size:12px;
}

.access-list{ list-style:none; margin:0; padding:0; display:grid; gap:12px; }
.access-list li{
  display:flex; gap:12px; align-items:flex-start; font-size:13px; line-height:1.65;
}
.access-list .dot{
  flex:0 0 8px; width:8px; height:8px; margin-top:6px; border-radius:50%; background:var(--gold);
}
.access-list .from{ font-weight:700; display:block; color:var(--ink); }
.access-list .detail{ color:var(--ink-soft); }

.map-frame{
  width:100%; height:280px; border:0; border-radius:14px; margin-top:4px;
  filter:saturate(1.05);
}

.official-btn{ margin-top:6px; width:100%; justify-content:center; }

.prev-next{
  max-width:1120px; margin:10px auto 10px; padding:0 24px;
  display:grid; grid-template-columns:1fr 1fr; gap:16px;
}
.pn-card{
  border:1px solid var(--line); border-radius:16px; padding:18px 20px;
  background:var(--card); box-shadow:var(--shadow-sm);
}
.pn-card .pn-label{ font-size:10.5px; color:var(--ink-faint); letter-spacing:.1em; margin-bottom:4px; }
.pn-card .pn-name{ font-family:"Shippori Mincho",serif; font-size:15.5px; }
.pn-card.next{ text-align:right; }

.back-index{
  max-width:1120px; margin:34px auto 0; padding:0 24px;
}

@media(max-width:640px){
  .prev-next{ grid-template-columns:1fr; }
  .pn-card.next{ text-align:left; }
}