:root{
  --ink:#E9E7E0;
  --ink-dim:#A8B0C4;
  --night:#0B1226;
  --night-2:#131C36;
  --rule:#2A3556;
  --accent:#D8674A;
  --gold:#E8D7A2;
  --serif:"Hiragino Mincho ProN","Yu Mincho",YuMincho,"Noto Serif JP",serif;
  --sans:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;overflow-x:hidden;background:var(--night);color:var(--ink);
  font-family:var(--sans);line-height:1.9;
  font-size:16px;letter-spacing:.02em;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--gold)}
img{max-width:100%;display:block}

/* ── ヘッダー ── */
.site-head{
  position:sticky;top:0;z-index:10;
  display:flex;align-items:center;justify-content:space-between;
  gap:1rem;padding:.6rem 1.25rem;
  background:rgba(11,18,38,.82);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--rule);
}
.site-head img{height:54px;width:auto;max-width:52vw}
.site-head nav{display:flex;gap:1.1rem;font-size:.82rem}
.site-head nav a{color:var(--ink-dim);text-decoration:none}
.site-head nav a:hover{color:var(--ink)}

/* ── ヒーロー ── */
.hero{position:relative;overflow:hidden;background:#060B18}
.hero-img{
  width:100%;height:min(78vh,760px);object-fit:cover;object-position:50% 24%;
  opacity:.9;
}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(to bottom,rgba(6,11,24,.25) 0%,rgba(6,11,24,0) 35%,rgba(11,18,38,.85) 88%,var(--night) 100%);
}
.hero-title{
  position:absolute;left:50%;bottom:8%;transform:translateX(-50%);
  width:min(560px,82vw);text-align:center;
}
.hero-title img{width:100%}
.hero-catch{
  margin:1.1rem 0 0;font-family:var(--serif);
  font-size:clamp(.95rem,3.4vw,1.15rem);letter-spacing:.32em;
  text-indent:.32em;color:var(--gold);
}

/* ── レイアウト ── */
main{max-width:720px;margin:0 auto;padding:0 1.25rem 5rem}
section{padding:3.4rem 0;border-top:1px solid var(--rule)}
section:first-of-type{border-top:0}
h2{
  font-family:var(--serif);font-weight:500;
  font-size:1.05rem;letter-spacing:.22em;text-indent:.22em;
  margin:0 0 1.6rem;color:var(--gold);
}
h2::before{content:"—　"}
p{margin:0 0 1.3rem}
.lead{
  font-family:var(--serif);font-size:1.06rem;line-height:2.15;
}

/* ── 諸元表 ── */
dl.spec{
  margin:0;display:grid;grid-template-columns:7.5em 1fr;
  gap:0;border-top:1px solid var(--rule);
}
dl.spec dt,dl.spec dd{
  margin:0;padding:.85rem .2rem;border-bottom:1px solid var(--rule);
}
dl.spec dt:last-of-type,dl.spec dd:last-of-type{border-bottom:0}
dl.spec dt{color:var(--ink-dim);font-size:.86rem}
dl.spec dd{font-variant-numeric:tabular-nums}
.price{font-size:1.15rem}
.price small{display:block;font-size:.78rem;color:var(--ink-dim);letter-spacing:.04em}

/* ── 予約 ── */
.cta{text-align:center;padding:3.6rem 0 1rem}
.btn{
  display:inline-block;padding:.95rem 3.2rem;
  background:var(--accent);color:#fff;text-decoration:none;
  font-size:1.02rem;letter-spacing:.14em;text-indent:.14em;
  border-radius:2px;
}
.btn:hover{background:#C2543A}
.cta .note{margin:1rem 0 0;font-size:.82rem;color:var(--ink-dim)}

/* ── フッター ── */
footer{
  border-top:1px solid var(--rule);padding:2.6rem 1.25rem 3.4rem;
  text-align:center;color:var(--ink-dim);font-size:.82rem;
}
footer .motto{
  font-family:var(--serif);color:var(--gold);
  letter-spacing:.2em;text-indent:.2em;margin-bottom:1.4rem;
}
footer a{color:var(--ink-dim)}
footer .links{display:flex;gap:1.4rem;justify-content:center;flex-wrap:wrap;margin-top:.9rem}

@media (max-width:560px){
  body{font-size:15px}
  .site-head{padding:.55rem .85rem}
  .site-head img{height:38px}
  .site-head nav{gap:.85rem;font-size:.75rem}
  .hero-img{height:72vh}
  dl.spec{grid-template-columns:6.2em 1fr}
}

/* ── 下層ページ ── */
.page-head-block{max-width:720px;margin:0 auto;padding:3.6rem 1.25rem 0}
.page-head-block h1{
  font-family:var(--serif);font-weight:500;
  font-size:clamp(1.3rem,4.6vw,1.6rem);letter-spacing:.14em;
  margin:0 0 .7rem;
}
.page-head-block .sub{margin:0;color:var(--ink-dim);font-size:.85rem;line-height:1.85}

.doc h3{
  font-family:var(--serif);font-weight:500;font-size:1rem;
  letter-spacing:.12em;color:var(--gold);margin:2.8rem 0 1rem;
}
.doc h3:first-child{margin-top:0}
.doc ul{margin:0 0 1.3rem;padding-left:1.3em}
.doc li{margin-bottom:.6rem}
.doc .fine{font-size:.86rem;color:var(--ink-dim)}

/* ── フォーム ── */
.field{margin-bottom:2.1rem}
.field > label{display:block;font-size:.93rem;margin-bottom:.5rem}
.req{color:var(--accent);font-size:.72rem;margin-left:.6em;letter-spacing:.08em}
.opt{color:var(--ink-dim);font-size:.72rem;margin-left:.6em;letter-spacing:.08em}
.hint{margin:.45rem 0 0;font-size:.8rem;color:var(--ink-dim);line-height:1.75}
input[type=text],input[type=email],textarea,select{
  width:100%;padding:.8rem .9rem;
  background:var(--night-2);border:1px solid var(--rule);border-radius:2px;
  color:var(--ink);font-family:inherit;font-size:1rem;line-height:1.5;
}
select{max-width:9rem;appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--ink-dim) 50%),linear-gradient(135deg,var(--ink-dim) 50%,transparent 50%);
  background-position:calc(100% - 1.15rem) 1.25rem,calc(100% - .8rem) 1.25rem;
  background-size:.35rem .35rem,.35rem .35rem;background-repeat:no-repeat;
}
input:focus,textarea:focus,select:focus{outline:2px solid var(--gold);outline-offset:1px;border-color:var(--gold)}
input::placeholder{color:#5A6480}
textarea{line-height:1.85;min-height:7.5rem;resize:vertical}

.consent{
  margin:2.6rem 0 1.4rem;padding-top:1.6rem;border-top:1px solid var(--rule);
  font-size:.85rem;color:var(--ink-dim);line-height:1.9;
}
.submit-row{text-align:center;margin-top:1.4rem}
button.btn{border:0;cursor:pointer;font-family:inherit;min-width:16rem}
button.btn[disabled]{opacity:.45;cursor:not-allowed}
.stock{
  margin:0 0 2.4rem;padding:.85rem 1rem;
  background:var(--night-2);border-left:2px solid var(--gold);
  font-size:.88rem;
}
.form-msg{margin:1.4rem 0 0;padding:1rem 1.1rem;border-radius:2px;font-size:.9rem;line-height:1.8;white-space:pre-line}
.form-msg.err{background:#3A1A16;border-left:2px solid var(--accent)}
.form-msg.ok{background:#152A22;border-left:2px solid #6FB89A}
.form-msg:empty{display:none}

/* 箱 */
.box-shot{
  display:block;width:min(400px,86%);height:auto;
  margin:2.8rem auto .4rem;
}

/* 外部の掲載ページ */
.links-out{
  display:flex;gap:1.6rem;flex-wrap:wrap;
  margin:1.6rem 0 0;font-size:.85rem;
}
.links-out a{color:var(--ink-dim);text-decoration:none;border-bottom:1px solid var(--rule);padding-bottom:.15rem}
.links-out a:hover{color:var(--gold);border-bottom-color:var(--gold)}

footer .credit{margin-bottom:1.1rem;font-size:.78rem;letter-spacing:.06em}

/* 確認ページの確定ボタン */
main form{margin:.4rem 0 2.4rem}