:root{
  --ink:#16201d; --jade:#143b33; --jade2:#1f5a4d; --red:#b3302a; --gold:#bfa05e;
  --paper:#f3f4f0; --white:#fff; --line:#d9ddd5;
  --serif:"Shippori Mincho","Hiragino Mincho ProN","Yu Mincho",serif;
  --sans:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:64px}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--paper);line-height:1.9;font-size:16px;-webkit-text-size-adjust:100%}
a{color:inherit}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
.wrap{width:min(1080px,100% - 40px);margin-inline:auto}
.narrow{width:min(720px,100% - 40px)}

/* header */
.site-header{position:fixed;inset:0 0 auto;z-index:50;display:flex;justify-content:space-between;align-items:center;height:60px;padding:0 20px;background:rgba(20,59,51,.94);backdrop-filter:blur(8px);color:var(--white)}
.logo{font-family:var(--serif);font-weight:800;font-size:22px;text-decoration:none;letter-spacing:.12em;display:flex;align-items:baseline;gap:10px}
.logo small{font:400 10px var(--sans);letter-spacing:.08em;opacity:.65;display:none}
.nav-btn{width:44px;height:44px;background:none;border:0;cursor:pointer;position:relative}
.nav-btn span{position:absolute;left:11px;right:11px;height:2px;background:var(--white);transition:.25s}
.nav-btn span:first-child{top:17px}.nav-btn span:last-child{top:25px}
.nav-btn[aria-expanded=true] span:first-child{top:21px;transform:rotate(45deg)}
.nav-btn[aria-expanded=true] span:last-child{top:21px;transform:rotate(-45deg)}
.gnav{position:fixed;inset:60px 0 auto;display:flex;flex-direction:column;background:var(--jade);padding:8px 20px 24px;transform:translateY(-130%);transition:transform .3s;visibility:hidden}
.gnav.open{transform:none;visibility:visible}
.gnav a{color:var(--white);text-decoration:none;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.14);font-weight:500}
.gnav .gnav-tel{margin-top:16px;border:0;background:var(--red);text-align:center;border-radius:2px}

/* hero */
.hero{min-height:100svh;background:
  radial-gradient(60% 50% at 80% 30%,rgba(191,160,94,.22),transparent 70%),
  radial-gradient(70% 60% at 10% 90%,rgba(31,90,77,.9),transparent 70%),
  var(--jade);
  color:var(--white);display:flex;flex-direction:column;justify-content:center;padding:96px 0 56px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:18px;border:1px solid rgba(191,160,94,.45);pointer-events:none}
.hero-inner{width:min(1080px,100% - 64px);margin-inline:auto;display:flex;flex-direction:column;gap:32px}
.hero-title{margin:0;font-family:var(--serif);font-weight:800;font-size:clamp(76px,22vw,150px);line-height:1.08;display:flex;flex-direction:column;letter-spacing:.04em;align-self:flex-end}
.hero-title span:nth-child(2){color:var(--gold)}
.hero-lead{font-family:var(--serif);font-weight:700;font-size:clamp(24px,6.4vw,40px);line-height:1.6;margin:0 0 14px}
.hero-sub{margin:0 0 28px;font-size:14px;opacity:.85;max-width:34em}
.btns{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-block;padding:14px 26px;text-decoration:none;font-weight:700;font-size:15px;border-radius:2px;transition:.2s;text-align:center}
.btn-red{background:var(--red)}.btn-red:hover{background:#cf3b34}
.btn-line{border:1px solid rgba(255,255,255,.7)}.btn-line:hover{background:var(--white);color:var(--jade)}
.hero-note{position:absolute;left:0;right:0;bottom:36px;margin:0;text-align:center;font-size:12px;letter-spacing:.1em;opacity:.7}

/* sections */
.sec{padding:84px 0}
.sec-dark{background:var(--jade);color:var(--white)}
.sec-title{font-family:var(--serif);font-weight:800;font-size:clamp(26px,6vw,38px);line-height:1.5;margin:0 0 36px;letter-spacing:.06em}
#concept p{margin:0 0 1.4em}
#concept .sec-title{font-size:clamp(28px,7vw,44px)}

.feat-grid{display:grid;gap:0;border-top:1px solid rgba(191,160,94,.5)}
.feat{padding:26px 0;border-bottom:1px solid rgba(191,160,94,.5)}
.feat h3{font-family:var(--serif);font-size:21px;margin:0 0 6px;color:var(--gold)}
.feat p{margin:0;font-size:15px;opacity:.88}

/* menu */
.tabs{display:flex;gap:4px;overflow-x:auto;border-bottom:1px solid var(--line);margin-bottom:32px;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tabs button{flex:none;background:none;border:0;border-bottom:3px solid transparent;padding:14px 18px;font:500 15px var(--sans);color:#5a655f;cursor:pointer;margin-bottom:-1px}
.tabs button[aria-selected=true]{color:var(--ink);border-bottom-color:var(--red);font-weight:700}
.sub{font-family:var(--serif);font-size:19px;margin:32px 0 10px;padding-left:12px;border-left:3px solid var(--red);line-height:1.4}
.sub:first-child{margin-top:0}
.price,.cards{list-style:none;margin:0;padding:0}
.price li{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px dotted #a9b0a8}
.price b{font-weight:500;white-space:nowrap;font-variant-numeric:tabular-nums}
.cards{display:grid;gap:12px}
.cards li{background:var(--white);padding:18px 20px;border-left:3px solid var(--gold)}
.cards b{display:block;font-family:var(--serif);font-size:18px}
.cards span{font-size:14px;color:#4b564f}
.note{font-size:12.5px;color:#5a655f;margin:20px 0 0;line-height:1.7}
.panel[hidden]{display:none}
.panel{animation:fade .3s}
@keyframes fade{from{opacity:0}to{opacity:1}}

/* reserve */
.reserve{background:var(--ink);color:var(--white);text-align:center;padding:72px 0}
.reserve h2{font-family:var(--serif);font-size:clamp(24px,5vw,32px);margin:0 0 12px}
.reserve p{margin:0 0 20px;opacity:.8;font-size:14px}
.tel{font-family:var(--serif);font-size:clamp(34px,9vw,52px);font-weight:700;color:var(--gold);text-decoration:none;letter-spacing:.04em}

/* info */
.info-grid{display:grid;gap:32px}
.info{margin:0}
.info>div{display:grid;grid-template-columns:5.5em 1fr;gap:12px;padding:16px 0;border-bottom:1px solid var(--line)}
.info dt{font-weight:700;color:var(--jade2)}
.info dd{margin:0;font-size:15px}
.info dd b{display:inline-block;min-width:3em;color:var(--red)}
.info a{text-decoration:none;font-weight:700}
.map iframe{width:100%;height:340px;border:0;filter:saturate(.8)}

/* footer */
.site-footer{background:var(--jade);color:var(--white);text-align:center;padding:48px 20px 96px;font-size:14px}
.site-footer p{margin:0 0 8px}
.f-logo{font-family:var(--serif);font-size:26px;font-weight:800;letter-spacing:.2em}
.site-footer small{opacity:.55;font-size:11px}
.fab{position:fixed;right:14px;bottom:14px;z-index:40;background:var(--red);color:var(--white);padding:13px 22px;border-radius:999px;text-decoration:none;font-weight:700;font-size:14px;box-shadow:0 6px 18px rgba(0,0,0,.28)}

/* tablet / desktop */
@media(min-width:900px){
  body{font-size:17px}
  .site-header{height:68px;padding:0 40px}
  .logo small{display:inline}
  .nav-btn{display:none}
  .gnav{position:static;flex-direction:row;align-items:center;gap:30px;padding:0;transform:none;visibility:visible;background:none}
  .gnav a{border:0;padding:0;font-size:14px}
  .gnav .gnav-tel{margin:0;padding:10px 18px}
  .hero-inner{flex-direction:row-reverse;justify-content:space-between;align-items:center}
  .hero-title{align-self:auto;flex-direction:column;font-size:150px}
  .hero-copy{max-width:520px}
  .sec{padding:130px 0}
  .feat-grid{grid-template-columns:repeat(4,1fr);border-top:0}
  .feat{padding:8px 28px 8px 0;border:0;border-right:1px solid rgba(191,160,94,.5);margin-right:28px}
  .feat:last-child{border:0;margin:0}
  .cards{grid-template-columns:repeat(2,1fr)}
  .price{columns:2;column-gap:56px}
  .price li{break-inside:avoid}
  .info-grid{grid-template-columns:1fr 1fr;gap:56px;align-items:start}
  .map iframe{height:100%;min-height:460px}
  .fab{display:none}
  .site-footer{padding-bottom:48px}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}