/* ============================================================
   KOYO × TYLÖ — common stylesheet
   熾火(ember) × サウナ小屋の闇 × 湯気の白
   ============================================================ */
:root{
  --ink:#14100d; --ink-2:#1d1611; --ink-3:#261d16;
  --ember:#dc6a2c; --ember-hi:#ef9f5b; --ember-deep:#a34518;
  --wood:#c2925f; --wood-dim:#8a6a45;
  --steam:#efe9df; --paper:#f5f0e8;
  --text:#2a221c; --muted:#8a7f73; --muted-d:rgba(239,233,223,.55);
  --line:rgba(42,34,28,.12); --line-d:rgba(239,233,223,.12);
  --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;overflow-x:clip}
::selection{background:var(--ember);color:#fff}
body{
  font-family:"Zen Kaku Gothic New",sans-serif;color:var(--text);background:var(--ink);
  line-height:1.9;-webkit-font-smoothing:antialiased;overflow-x:clip;
}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--ink)}
::-webkit-scrollbar-thumb{background:var(--wood-dim);border-radius:5px}
h1,h2,h3,h4,.mincho{font-family:"Zen Old Mincho",serif}
.en{font-family:"Cormorant Garamond",serif;font-style:italic}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:.7rem;letter-spacing:.42em;
  text-transform:uppercase;color:var(--wood);font-weight:700}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--ember)}
body::after{content:"";position:fixed;inset:0;pointer-events:none;z-index:98;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E")}

/* ===== header ===== */
header{position:fixed;top:0;left:0;right:0;z-index:90;display:flex;align-items:center;
  justify-content:space-between;padding:22px 34px;transition:.4s ease}
header.solid{background:rgba(20,16,13,.92);backdrop-filter:blur(14px);padding:13px 34px;border-bottom:1px solid var(--line-d)}
.brand{display:flex;align-items:center;gap:14px;color:var(--steam)}
.brand .flame{width:34px;height:34px;border-radius:50%;flex:none;
  background:radial-gradient(circle at 50% 65%,var(--ember-hi),var(--ember) 55%,var(--ember-deep));
  box-shadow:0 0 22px rgba(220,106,44,.55);display:flex;align-items:center;justify-content:center;
  font-family:"Zen Old Mincho";font-size:.95rem;color:#fff;font-weight:700}
.brand b{font-family:"Zen Old Mincho";font-weight:700;font-size:1.05rem;letter-spacing:.14em}
.brand small{display:block;font-size:.58rem;letter-spacing:.3em;color:var(--wood);text-transform:uppercase}
nav.main{display:flex;align-items:center;gap:28px}
nav.main a{color:var(--muted-d);font-size:.84rem;letter-spacing:.08em;transition:.25s;position:relative;white-space:nowrap}
nav.main a:hover,nav.main a.on{color:var(--steam)}
nav.main a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:1px;background:var(--ember);transition:.3s}
nav.main a:hover::after,nav.main a.on::after{width:100%}
.nav-cta{border:1px solid rgba(239,233,223,.3);border-radius:999px;padding:10px 22px!important;
  font-size:.82rem;letter-spacing:.1em;color:var(--steam)!important;transition:.3s}
.nav-cta:hover{background:var(--ember);border-color:var(--ember);box-shadow:0 6px 26px rgba(220,106,44,.5)}
.nav-cta::after{display:none!important}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;z-index:95}
.burger span{width:26px;height:2px;background:var(--steam);display:block;transition:.3s}
.mnav{display:none}

/* ===== page hero (下層共通) ===== */
.phero{position:relative;padding:190px 0 90px;background:var(--ink);color:var(--steam);overflow:hidden}
.phero .ghost{position:absolute;right:-2vw;bottom:-6rem;font-family:"Cormorant Garamond";font-style:italic;
  font-size:clamp(7rem,20vw,17rem);line-height:1;color:transparent;-webkit-text-stroke:1px rgba(239,233,223,.08);
  pointer-events:none;user-select:none;white-space:nowrap}
.phero .glowline{position:absolute;left:0;bottom:0;width:100%;height:1px;
  background:linear-gradient(90deg,transparent,var(--ember) 30%,var(--ember-hi) 50%,var(--ember) 70%,transparent)}
.phero h1{font-size:clamp(2.2rem,5.5vw,3.8rem);font-weight:900;line-height:1.3;margin:.35em 0 .3em}
.phero .lead{max-width:44em;color:var(--muted-d);font-weight:300}
.crumb{display:flex;gap:10px;align-items:center;font-size:.74rem;letter-spacing:.1em;color:var(--wood);margin-bottom:8px}
.crumb a:hover{color:var(--ember-hi)}
.crumb span::before{content:"›";margin-right:10px;color:var(--wood-dim)}

/* ===== sections ===== */
section{padding:110px 0;position:relative}
.light{background:var(--paper);color:var(--text)}
.dark{background:var(--ink);color:var(--steam)}
.dark2{background:var(--ink-2);color:var(--steam)}
.sec-head{max-width:820px;margin-bottom:56px}
.sec-head h2{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:700;line-height:1.4;margin:.4em 0 .5em}
.sec-head p{color:var(--muted);font-size:1.02rem}
.dark .sec-head p,.dark2 .sec-head p{color:var(--muted-d)}

/* ===== buttons ===== */
.btn{display:inline-flex;align-items:center;gap:12px;border-radius:999px;padding:16px 34px;
  font-weight:700;font-size:.95rem;letter-spacing:.08em;transition:.3s;border:none;cursor:pointer;font-family:inherit}
.btn .ar{transition:.3s}
.btn:hover .ar{transform:translateX(5px)}
.btn-primary{background:linear-gradient(120deg,var(--ember),var(--ember-deep));color:#fff;
  box-shadow:0 12px 40px -8px rgba(220,106,44,.65)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 20px 55px -10px rgba(220,106,44,.8)}
.btn-ghost{color:var(--steam);border:1px solid rgba(239,233,223,.32);background:none}
.btn-ghost:hover{background:rgba(239,233,223,.07)}
.light .btn-ghost{color:var(--text);border-color:rgba(42,34,28,.3)}

/* ===== cards / grids ===== */
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.card{position:relative;border:1px solid var(--line-d);border-radius:18px;padding:0 0 34px;overflow:hidden;
  transition:.4s;background:linear-gradient(165deg,rgba(239,233,223,.045),rgba(239,233,223,.01))}
.card:hover{border-color:rgba(220,106,44,.55);transform:translateY(-5px)}
.card .cimg{aspect-ratio:16/9;overflow:hidden;background:rgba(239,233,223,.03);
  display:flex;align-items:center;justify-content:center;color:var(--muted-d);font-size:.74rem;letter-spacing:.08em;
  border-bottom:1px dashed rgba(239,233,223,.18)}
.card .cimg img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.card:hover .cimg img{transform:scale(1.04)}
.card .cbody{padding:26px 30px 0}
.card h3{font-size:1.4rem;font-weight:700;color:var(--steam);margin-bottom:.1em}
.card .cen{font-size:.68rem;letter-spacing:.28em;text-transform:uppercase;color:var(--ember-hi);display:block;margin-bottom:.9em}
.card p{color:var(--muted-d);font-size:.93rem;font-weight:300}
.card .more{display:inline-flex;gap:8px;margin-top:16px;color:var(--ember-hi);font-size:.85rem;letter-spacing:.08em}

/* ===== spec table ===== */
.spec{width:100%;border-collapse:collapse;margin:8px 0}
.spec th,.spec td{text-align:left;padding:16px 18px;border-bottom:1px solid var(--line);font-size:.95rem;vertical-align:top}
.spec th{width:11em;color:var(--wood-dim);font-weight:700;letter-spacing:.05em;font-family:"Zen Kaku Gothic New"}
.dark .spec th,.dark2 .spec th{color:var(--wood)}
.dark .spec th,.dark .spec td,.dark2 .spec th,.dark2 .spec td{border-color:var(--line-d)}
.ph{color:#b24a1d;background:rgba(220,106,44,.1);padding:1px 6px;border-radius:3px;font-size:.85em}
.dark .ph,.dark2 .ph{color:var(--ember-hi)}

/* ===== feature list ===== */
ul.feat{list-style:none}
ul.feat li{position:relative;padding-left:28px;margin-bottom:14px;font-size:.98rem}
ul.feat li::before{content:"";position:absolute;left:0;top:.65em;width:9px;height:9px;background:var(--ember);
  transform:rotate(45deg);border-radius:1px}

/* ===== CTA band ===== */
.ctaband{background:var(--ink);color:var(--steam);text-align:center;padding:100px 0;position:relative;overflow:hidden}
.ctaband::before{content:"";position:absolute;left:50%;bottom:-40%;transform:translateX(-50%);width:120vw;height:70vh;
  background:radial-gradient(ellipse at 50% 100%,rgba(220,106,44,.5),rgba(220,106,44,.15) 40%,transparent 65%)}
.ctaband .wrap{position:relative;z-index:2}
.ctaband h2{font-size:clamp(1.8rem,4.2vw,3rem);font-weight:900;margin-bottom:.5em}
.ctaband p{color:var(--muted-d);margin-bottom:2em;font-weight:300}

/* ===== footer ===== */
footer{background:#0f0c09;color:var(--muted-d);padding:70px 0 34px;border-top:1px solid var(--line-d)}
.foot-grid{display:flex;justify-content:space-between;gap:44px;flex-wrap:wrap;margin-bottom:44px}
.foot-brand b{font-family:"Zen Old Mincho";color:var(--steam);font-size:1.3rem;letter-spacing:.12em;display:block;margin-bottom:10px}
.foot-brand p{font-size:.86rem;max-width:36ch;font-weight:300}
.foot-col h5{color:var(--wood);font-size:.72rem;letter-spacing:.24em;margin-bottom:16px;text-transform:uppercase}
.foot-col a,.foot-col p{display:block;font-size:.88rem;margin-bottom:10px;color:var(--muted-d);transition:.25s}
.foot-col a:hover{color:var(--ember-hi)}
.foot-note{border-top:1px solid var(--line-d);padding-top:22px;font-size:.72rem;letter-spacing:.06em;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.foot-note .reg{color:var(--wood)}

/* ===== article (column) ===== */
.article{max-width:720px;margin:0 auto}
.article .alead{font-size:1.08rem;color:var(--muted);border-left:3px solid var(--ember);padding-left:20px;margin:30px 0 44px}
.article h2{font-size:1.6rem;margin:2.4em 0 .8em;padding-bottom:.4em;border-bottom:1px solid var(--line)}
.article h2 .no{font-family:"Cormorant Garamond";font-style:italic;color:var(--ember);margin-right:14px}
.article p{margin-bottom:1.3em}
.article .toc{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px 30px;margin:36px 0}
.article .toc b{display:block;font-size:.78rem;letter-spacing:.24em;color:var(--wood-dim);margin-bottom:12px}
.article .toc a{display:block;padding:5px 0;font-size:.94rem;color:var(--text)}
.article .toc a:hover{color:var(--ember-deep)}
.article .note{background:rgba(220,106,44,.07);border-radius:10px;padding:20px 24px;font-size:.9rem;color:var(--muted);margin:2em 0}
.ameta{display:flex;gap:18px;font-size:.8rem;color:var(--muted);letter-spacing:.06em;margin-top:14px}

.reveal{opacity:0;transform:translateY(30px);transition:opacity .9s cubic-bezier(.2,.6,.2,1),transform .9s cubic-bezier(.2,.6,.2,1)}
.reveal.in{opacity:1;transform:none}

@media (max-width:960px){
  .grid2,.grid3{grid-template-columns:1fr}
  nav.main{display:none}
  .burger{display:flex}
  .mnav{display:block;position:fixed;inset:0;background:rgba(20,16,13,.98);z-index:94;
    padding:110px 34px;transform:translateX(100%);transition:.4s ease}
  .mnav.open{transform:none}
  .mnav a{display:block;padding:16px 0;font-family:"Zen Old Mincho";font-size:1.3rem;color:var(--steam);
    border-bottom:1px solid var(--line-d)}
  section{padding:80px 0}
  .phero{padding:150px 0 70px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

.form-status{font-size:.82rem;margin-top:14px;letter-spacing:.03em;min-height:1.2em;line-height:1.7}
.form-status.ok{color:var(--ember-hi)}
.form-status.err{color:#e5827a}
.form-status.wait{color:var(--muted-d)}
#contactSubmit.sending{opacity:.6;pointer-events:none}

/* ===== ブラッシュアップ追加：特徴ポイント / ギャラリー / 機種ラインナップ / アクセサリ ===== */
.points{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px}
.points .pt{border:1px solid var(--line-d);border-radius:14px;overflow:hidden;background:rgba(239,233,223,.02);transition:.3s}
.points .pt:hover{border-color:rgba(220,106,44,.5);transform:translateY(-4px)}
.points .pt img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block}
.points .pt .b{padding:20px 22px}
.points .pt .n{font-family:"Cormorant Garamond",serif;font-style:italic;font-size:1.1rem;color:var(--ember-hi)}
.points .pt h4{font-size:1.12rem;color:var(--steam);margin:.2em 0 .5em;line-height:1.5}
.points .pt p{font-size:.9rem;color:var(--muted-d);line-height:1.85;font-weight:300}
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:8px}
.gallery img{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:12px;transition:.35s}
.gallery img:hover{transform:scale(1.03)}
.lineup{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:8px}
.lineup .mdl{border:1px solid var(--line-d);border-radius:14px;padding:24px;text-align:center;background:rgba(239,233,223,.02)}
.lineup .mdl img{width:100%;height:180px;object-fit:contain;margin-bottom:14px}
.lineup .mdl h4{color:var(--steam);font-size:1.1rem;margin-bottom:.3em}
.lineup .mdl p{font-size:.85rem;color:var(--muted-d);line-height:1.7}
.lineup .mdl .pr{display:block;margin-top:10px;font-family:"Zen Old Mincho",serif;color:var(--ember-hi);font-size:1.05rem}
.accstrip{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:8px}
.accstrip .a{text-align:center}
.accstrip .a img{width:100%;height:150px;object-fit:contain;background:rgba(239,233,223,.03);border-radius:12px;padding:10px}
.accstrip .a span{display:block;margin-top:10px;font-size:.85rem;color:var(--muted-d)}
@media(max-width:820px){.points,.lineup,.accstrip{grid-template-columns:1fr 1fr}.gallery{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.points,.lineup{grid-template-columns:1fr}}

/* ===== FAQ ===== */
.faqlist{max-width:820px;margin:0 auto}
.faqlist .qa{border-bottom:1px solid var(--line-d);padding:26px 0}
.faqlist .q{display:flex;gap:14px;align-items:flex-start;font-size:1.12rem;color:var(--steam);font-weight:500;line-height:1.6}
.faqlist .q .mk{font-family:"Cormorant Garamond",serif;font-style:italic;color:var(--ember-hi);font-size:1.4rem;line-height:1}
.faqlist .a{display:flex;gap:14px;margin-top:12px;color:var(--muted-d);line-height:1.9;font-weight:300}
.faqlist .a .mk{font-family:"Cormorant Garamond",serif;font-style:italic;color:var(--wood);font-size:1.4rem;line-height:1}

/* ===== 構造拡張：ドロップダウン / 製品サブナビ ===== */
.main .dd{position:relative}
.main .dd>a::after{content:"▾";font-size:.7em;margin-left:4px;opacity:.7}
.main .dd .ddm{position:absolute;top:100%;left:0;background:#1a120c;border:1px solid var(--line-d);border-radius:10px;padding:8px;min-width:180px;display:none;flex-direction:column;gap:2px;box-shadow:0 14px 40px rgba(0,0,0,.4);z-index:60}
.main .dd:hover .ddm{display:flex}
.main .dd .ddm a{padding:9px 14px;border-radius:7px;font-size:.9rem;white-space:nowrap}
.main .dd .ddm a:hover{background:rgba(220,106,44,.14);color:var(--ember-hi)}
.pnav{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 6px}
.pnav a{padding:8px 16px;border:1px solid var(--line-d);border-radius:20px;font-size:.85rem;color:var(--muted-d);transition:.25s}
.pnav a:hover{border-color:var(--ember);color:var(--steam)}
.pnav a.on{background:var(--ember);color:#fff;border-color:var(--ember)}
.dlrow{display:flex;flex-wrap:wrap;gap:16px;margin-top:10px}
.dlrow a{display:flex;align-items:center;gap:10px;border:1px solid var(--line-d);border-radius:12px;padding:16px 22px;transition:.25s}
.dlrow a:hover{border-color:var(--ember);transform:translateY(-3px)}
.dlrow .ic{font-size:1.3rem}