/* 湯どきの道具 — 白×淡い青灰。浴室タイルの目地のグリッド、湯気のような余白 */
:root{
  --white:#fdfdfc; --tile:#f4f7f8; --grout:#dfe6ea; --mist:#e9eff2; --bluegray:#9fb1bc;
  --deep:#5d7482; --ink:#3a4852; --mute:#7d8c96; --accent:#6f93a8; --accent-d:#557a90;
  --round:'Zen Maru Gothic','Hiragino Maru Gothic ProN',sans-serif;
  --body:'Zen Kaku Gothic New','Hiragino Sans',sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--body);color:var(--ink);background:var(--white);line-height:1.9;font-size:15px;letter-spacing:.02em;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}

/* header */
.hd{background:rgba(253,253,252,.96);border-bottom:1px solid var(--grout);position:sticky;top:0;z-index:30}
.hd .wrap{display:flex;align-items:center;gap:24px;min-height:72px}
.logo{display:flex;align-items:center;gap:12px}
.logo-tile{display:grid;grid-template-columns:repeat(2,13px);gap:2px;background:var(--grout);padding:2px;border-radius:4px}
.logo-tile i{display:block;width:13px;height:13px;background:var(--tile);border-radius:2px}
.logo-tile i:nth-child(2),.logo-tile i:nth-child(3){background:var(--bluegray)}
.logo-t b{display:block;font-family:var(--round);font-weight:700;font-size:20px;letter-spacing:.12em;line-height:1.3}
.logo-t small{display:block;font-size:11px;color:var(--mute);letter-spacing:.04em}
.nav{display:flex;gap:26px;margin-left:auto;font-family:var(--round);font-size:14px}
.nav a{color:var(--deep);padding:4px 0;border-bottom:1px solid transparent}
.nav a:hover{border-color:var(--bluegray)}
.memo-link{white-space:nowrap;display:inline-flex;align-items:center;gap:8px;font-family:var(--round);font-size:14px;background:var(--mist);border:1px solid var(--grout);border-radius:999px;padding:7px 16px}
.memo-link:hover{background:var(--grout)}
.memo-ic{width:14px;height:16px;border:1.5px solid var(--deep);border-radius:2px;position:relative;background:repeating-linear-gradient(var(--white) 0 3px,var(--bluegray) 3px 4px);background-clip:content-box;padding:3px 2px}
.memo-link .n{min-width:22px;height:22px;display:inline-grid;place-items:center;background:var(--white);border-radius:999px;font-size:12px;color:var(--deep);padding:0 6px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;font-family:var(--round);font-weight:500;background:var(--deep);color:#fff;border:1px solid var(--deep);border-radius:6px;padding:13px 30px;cursor:pointer;letter-spacing:.08em;transition:background .2s}
.btn:hover{background:var(--ink)}
.btn.block{display:flex;width:100%}
.btn.soft,.btn.line{background:var(--white);color:var(--deep);border-color:var(--bluegray)}
.btn.soft:hover,.btn.line:hover{background:var(--mist)}

/* hero */
.hero{position:relative;overflow:hidden;background:var(--tile);padding:84px 0 96px;
  background-image:linear-gradient(var(--grout) 2px,transparent 2px),linear-gradient(90deg,var(--grout) 2px,transparent 2px);background-size:64px 64px}
.steam{position:absolute;inset:0;pointer-events:none}
.steam i{position:absolute;border-radius:50%;background:radial-gradient(closest-side,rgba(255,255,255,.95),rgba(255,255,255,0));filter:blur(4px)}
.steam i:nth-child(1){width:520px;height:520px;left:-120px;top:-80px}
.steam i:nth-child(2){width:380px;height:380px;left:30%;bottom:-160px}
.steam i:nth-child(3){width:300px;height:300px;right:-60px;top:20px;opacity:.7}
.hero-in{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center}
.hero-k{font-family:var(--round);font-size:12px;letter-spacing:.3em;color:var(--accent);margin-bottom:22px}
.hero h1{font-family:var(--round);font-weight:500;font-size:clamp(28px,4vw,44px);line-height:1.6;letter-spacing:.1em}
.hero .lead{margin:24px 0 34px;color:var(--deep);font-size:15px;line-height:2.1}
.hero-wall{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;background:var(--grout);padding:6px;border-radius:10px}
.hero-wall div{aspect-ratio:1/1;overflow:hidden;border-radius:6px;background:#fff}
.hero-wall img{width:100%;height:100%;object-fit:cover}

/* sections */
.sec{padding:96px 0}
.sec-hd{text-align:center;margin-bottom:44px}
.sec-hd h2{font-family:var(--round);font-weight:500;font-size:26px;letter-spacing:.16em}
.sec-hd h2::after{content:'';display:block;width:44px;height:8px;margin:14px auto 0;background:linear-gradient(90deg,var(--bluegray) 0 12px,transparent 12px 16px,var(--bluegray) 16px 28px,transparent 28px 32px,var(--bluegray) 32px)}
.sec-hd p{color:var(--mute);font-size:13px;margin-top:10px}
.h2s{font-family:var(--round);font-weight:500;font-size:20px;letter-spacing:.12em;margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid var(--grout)}

/* filter: tile buttons */
.cats{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px;background:var(--grout);padding:6px;border-radius:10px;max-width:880px;margin:0 auto}
.cats button{border:0;background:var(--tile);border-radius:6px;padding:16px 8px;cursor:pointer;font-family:var(--round);display:flex;flex-direction:column;align-items:center;gap:2px;transition:background .2s}
.cats button span{font-size:15px;font-weight:500}
.cats button small{font-size:11px;color:var(--mute)}
.cats button:hover{background:#fff}
.cats button[aria-pressed="true"]{background:var(--deep);color:#fff}
.cats button[aria-pressed="true"] small{color:var(--grout)}
.mats-row{display:flex;align-items:center;justify-content:center;gap:14px;margin-top:22px;flex-wrap:wrap}
.mats-l{font-size:12px;color:var(--mute);letter-spacing:.14em}
.mats{display:flex;flex-wrap:wrap;gap:4px 18px;justify-content:center}
.mats button{border:0;background:none;cursor:pointer;font-size:14px;color:var(--mute);padding:2px 0;border-bottom:1px solid transparent}
.mats button[aria-pressed="true"]{color:var(--ink);border-color:var(--accent)}
.count{text-align:center;font-size:12px;color:var(--mute);margin:18px 0 26px}

/* tile wall */
.wall{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;background:var(--grout);padding:6px;border-radius:10px}
.card-w{background:var(--white);border-radius:6px;overflow:hidden;display:flex;flex-direction:column}
.tile{display:flex;flex-direction:column;height:100%}
.tile-ph{aspect-ratio:1/1;overflow:hidden;background:var(--tile)}
.tile-ph img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.tile:hover .tile-ph img{transform:scale(1.04)}
.tile-tx{display:flex;flex-direction:column;gap:4px;padding:16px 16px 20px;flex:1}
.tile-cat{font-size:11px;color:var(--accent);letter-spacing:.1em}
.tile-key{font-size:12px;color:var(--mute)}
.tile-key b{font-family:var(--round);font-size:20px;font-weight:500;color:var(--deep);margin:0 1px}
.tile-nm{font-family:var(--round);font-weight:500;font-size:14px;line-height:1.6;flex:1}
.tile-pr{font-family:var(--round);font-size:17px;font-weight:700;margin-top:6px}
.tile-pr small{font-size:11px;font-weight:400;color:var(--mute);margin-left:6px}

/* promise */
.promise{background:var(--mist)}
.pm-wall{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;background:var(--grout);padding:6px;border-radius:10px}
.pm{background:var(--white);border-radius:6px;padding:32px 28px}
.pm-n{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--mist);font-family:var(--round);color:var(--deep);font-size:15px}
.pm h3{font-family:var(--round);font-weight:500;font-size:17px;margin:14px 0 8px;letter-spacing:.06em}
.pm p{font-size:14px;color:var(--deep)}

/* footer */
.ft{background:var(--deep);color:#e7eef2;padding:56px 0 26px;font-size:13px}
.ft-in{display:flex;flex-wrap:wrap;justify-content:space-between;gap:30px}
.ft .logo-tile{background:#7f95a2}
.ft .logo-tile i{background:var(--deep)}
.ft .logo-tile i:nth-child(2),.ft .logo-tile i:nth-child(3){background:#c9d6dd}
.ft-tag{margin-top:12px;color:#c9d6dd}
.ft-co{margin-top:12px;font-size:12px;color:#c9d6dd}
.ft-links{list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,auto));gap:6px 34px;align-content:start}
.ft-links a:hover{text-decoration:underline}
.ft-c{margin-top:36px;padding-top:16px;border-top:1px solid #7f95a2;font-size:11px;color:#c9d6dd;text-align:center}

/* toast */
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,16px);background:var(--white);color:var(--ink);border:1px solid var(--grout);box-shadow:0 8px 30px rgba(58,72,82,.15);border-radius:999px;padding:12px 24px;font-family:var(--round);font-size:14px;opacity:0;transition:.25s;pointer-events:none;z-index:60}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* product */
.pd-wrap{padding-top:24px;padding-bottom:64px}
.crumb{font-size:12px;color:var(--mute);margin-bottom:26px}
.crumb a:hover{color:var(--ink)}
.pd{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:52px;align-items:start}
.pd-main{background:var(--grout);padding:6px;border-radius:10px}
.pd-main img{width:100%;aspect-ratio:1/1;object-fit:contain;background:#fff;border-radius:6px}
.cap{font-size:12px;color:var(--mute);margin-top:8px}
.thumbs{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:6px;margin-top:12px}
.thumbs button{border:2px solid transparent;border-radius:6px;padding:0;background:var(--tile);cursor:pointer;overflow:hidden;aspect-ratio:1/1}
.thumbs button img{width:100%;height:100%;object-fit:cover}
.thumbs button.on{border-color:var(--accent)}
.pd-cat{font-size:12px;color:var(--accent);letter-spacing:.1em}
.pd-tx h1{font-family:var(--round);font-weight:500;font-size:25px;line-height:1.55;letter-spacing:.06em;margin:8px 0 14px}
.pd-key{display:inline-flex;align-items:baseline;gap:6px;background:var(--mist);border-radius:6px;padding:6px 16px;font-size:13px;color:var(--deep)}
.pd-key b{font-family:var(--round);font-size:30px;font-weight:500;line-height:1.3}
.pd-pr{font-family:var(--round);font-size:28px;font-weight:700;margin:16px 0 18px}
.pd-pr small{font-size:13px;font-weight:400;color:var(--mute);margin-left:8px}
.desc{white-space:pre-line;margin-bottom:20px}
.opt{margin-bottom:16px}
.opt-t{font-size:13px;color:var(--mute);margin-bottom:6px}
.opt-t span{color:var(--ink)}
.vals{display:flex;flex-wrap:wrap;gap:6px}
.vals button{border:1px solid var(--grout);background:var(--white);border-radius:6px;padding:6px 14px;font-size:13px;cursor:pointer}
.vals button:hover{border-color:var(--bluegray)}
.vals button.on{background:var(--deep);border-color:var(--deep);color:#fff}
.buy{display:flex;gap:10px;margin-top:22px}
.buy .btn{flex:1}
.qty{display:flex;align-items:center;border:1px solid var(--grout);border-radius:6px;background:var(--white);overflow:hidden}
.qty button{width:40px;height:100%;min-height:44px;border:0;background:var(--tile);cursor:pointer;font-size:17px}
.qty input{width:44px;border:0;text-align:center;background:transparent}
.msg{color:#b4534b;font-size:13px;min-height:1.7em;margin-top:6px}
.ship{list-style:none;margin-top:10px;font-size:13px;color:var(--deep);background:var(--tile);border-radius:8px;padding:14px 18px}
.ship li{position:relative;padding-left:16px;margin:3px 0}
.ship li::before{content:'';position:absolute;left:0;top:.75em;width:7px;height:7px;background:var(--bluegray);border-radius:1px}
.spec{margin-top:64px}
.spec h2{font-family:var(--round);font-weight:500;font-size:20px;letter-spacing:.12em;margin-bottom:16px}
.spec dl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;background:var(--grout);padding:6px;border-radius:10px}
.spec dl div{background:var(--white);border-radius:6px;padding:14px 18px}
.spec dt{font-size:12px;color:var(--mute);letter-spacing:.08em}
.spec dd{font-size:14px}
.note{margin-top:16px;font-size:13px;background:var(--mist);border-radius:8px;padding:14px 18px}
.fine{margin-top:10px;font-size:12px;color:var(--mute)}
.related{margin-top:72px}
.rv-wrap .rv-list{margin-top:4px}
section.rv-wrap#reviews{margin-top:64px}

/* reviews */
.stars{color:var(--grout);letter-spacing:1px}
.stars .on{color:#d8a84e}
.rv-summary{display:flex;align-items:baseline;gap:10px;justify-content:center;margin-bottom:20px}
#reviews .rv-summary{justify-content:flex-start}
.rv-avg{font-family:var(--round);font-size:26px;font-weight:700}
.rv-count{font-size:13px;color:var(--mute)}
.rv-list{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:6px;background:var(--grout);padding:6px;border-radius:10px}
.rv{background:var(--white);border-radius:6px;padding:18px 20px}
.rv-head{display:flex;justify-content:space-between;align-items:center;gap:8px}
.rv-badge{font-size:11px;background:var(--mist);color:var(--deep);border-radius:999px;padding:1px 10px}
.rv h4{font-family:var(--round);font-weight:500;margin:8px 0 4px}
.rv-item{font-size:12px;color:var(--mute)}
.rv-item a{text-decoration:underline}
.rv p{font-size:14px;white-space:pre-line}
.rv-meta{font-size:11px;color:var(--mute);margin-top:6px}
.rv-more{margin-top:16px}
.pd-rating{display:flex;align-items:center;gap:8px;font-size:13px;margin-bottom:10px}
.pd-rating .n{font-weight:700}
.pd-rating a{text-decoration:underline;color:var(--mute)}
.card-rv{display:flex;align-items:center;gap:6px;border:0;border-top:1px solid var(--grout);background:var(--tile);padding:8px 16px;font-size:12px;cursor:pointer;width:100%}
.card-rv u{color:var(--mute)}
.rv-sheet{position:fixed;inset:0;background:rgba(58,72,82,.45);z-index:80;display:flex;align-items:center;justify-content:center;padding:16px}
.rv-sheet[hidden]{display:none}
.rv-sheet-box{background:var(--white);border-radius:12px;width:100%;max-width:620px;max-height:86vh;overflow:auto;padding:22px}
.rv-sheet-head{display:flex;justify-content:space-between;gap:12px;margin-bottom:14px}
.rv-sheet-head h3{font-family:var(--round);font-weight:500;font-size:16px}
.rv-sheet-x{border:0;background:none;font-size:22px;cursor:pointer;line-height:1}
.rv-sheet-go{margin-top:14px;display:flex}

/* page title & legal */
.ptitle{text-align:center;padding:64px 16px 48px;background:var(--tile);background-image:linear-gradient(var(--grout) 2px,transparent 2px),linear-gradient(90deg,var(--grout) 2px,transparent 2px);background-size:48px 48px;margin-bottom:44px}
.ptitle h1{font-family:var(--round);font-weight:500;font-size:26px;letter-spacing:.16em;display:inline-block;background:var(--white);padding:4px 22px;border-radius:6px}
.ptitle p{font-size:13px;color:var(--deep);margin-top:12px}
.legal{max-width:860px;padding-bottom:80px}
.legal dl{display:grid;gap:6px;background:var(--grout);padding:6px;border-radius:10px}
.legal dl div{display:grid;grid-template-columns:200px minmax(0,1fr);gap:16px;background:var(--white);border-radius:6px;padding:16px 20px}
.legal dt{font-family:var(--round);font-weight:500;color:var(--deep)}
.legal dd{font-size:14px}
.prose{line-height:2}
.prose h2{font-family:var(--round);font-weight:500;font-size:17px;margin:30px 0 8px;padding-left:12px;border-left:4px solid var(--bluegray)}
.prose p,.prose li{font-size:14px;margin-bottom:8px}
.prose ul{padding-left:1.4em}
.prose .date{margin-top:30px;color:var(--mute)}

/* memo (cart) */
.memo{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:32px;align-items:start;padding-bottom:80px}
.memo-list{list-style:none;background:var(--tile);border-radius:10px;padding:8px 20px;background-image:repeating-linear-gradient(transparent 0 35px,var(--grout) 35px 36px)}
.memo-row{display:grid;grid-template-columns:88px minmax(0,1fr) auto;gap:16px;padding:16px 0;border-bottom:1px dashed var(--bluegray);align-items:start}
.memo-row:last-child{border-bottom:0}
.memo-row img{width:88px;height:88px;object-fit:cover;border-radius:6px;background:#fff}
.memo-nm{font-family:var(--round);font-weight:500;display:block;line-height:1.5}
.memo-op{font-size:12px;color:var(--mute)}
.memo-act{display:flex;gap:12px;align-items:center;margin-top:8px}
.memo-act .qty button{min-height:34px;width:34px}
.memo-act .qty input{width:36px}
.rm{border:0;background:none;font-size:12px;color:var(--mute);text-decoration:underline;cursor:pointer}
.memo-sub{font-family:var(--round);font-weight:700}
.sum{background:var(--white);border:1px solid var(--grout);border-radius:10px;padding:24px}
.sum dl{display:grid;grid-template-columns:1fr auto;gap:8px 12px;font-size:14px}
.sum dd{text-align:right}
.sum .tot{font-weight:700;border-top:1px solid var(--grout);padding-top:10px}
.sum dd.tot{font-family:var(--round);font-size:22px}
.free{font-size:12px;color:var(--mute);margin:14px 0}
.sum .btn+.btn{margin-top:10px}
.empty{text-align:center;padding:60px 0 90px}
.empty p{color:var(--mute);margin-bottom:20px}
.modal{position:fixed;inset:0;background:rgba(58,72,82,.45);display:none;align-items:center;justify-content:center;padding:16px;z-index:70}
.modal.show{display:flex}
.modal .box{background:var(--white);border-radius:12px;max-width:440px;width:100%;padding:28px}
.modal h3{font-family:var(--round);font-weight:500;font-size:18px;margin-bottom:12px}
.modal p{font-size:14px;margin-bottom:10px}
.modal .small{font-size:12px;color:var(--mute)}
.modal .btn+.btn{margin-top:10px}

/* responsive */
@media (max-width:960px){
  .wall{grid-template-columns:repeat(3,minmax(0,1fr))}
  .hero-in{grid-template-columns:minmax(0,1fr);gap:40px}
  .pd{grid-template-columns:minmax(0,1fr);gap:30px}
  .memo{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:720px){
  body{font-size:14px}
  .wrap{padding:0 16px}
  .hd .wrap{min-height:62px;gap:10px}
  .nav{display:none}
  .memo-link{margin-left:auto;padding:6px 12px;font-size:13px}
  .logo-t b{font-size:17px}
  .logo-t small{display:none}
  .hero{padding:52px 0 60px}
  .hero .lead br{display:none}
  .sec{padding:68px 0}
  .sec-hd h2{font-size:22px}
  .cats{grid-template-columns:repeat(3,minmax(0,1fr))}
  .cats button{padding:12px 4px}
  .cats button span{font-size:13px}
  .wall{grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;padding:4px}
  .tile-tx{padding:12px 10px 14px}
  .tile-nm{font-size:13px}
  .tile-pr small{display:block;margin-left:0}
  .pm-wall{grid-template-columns:minmax(0,1fr)}
  .thumbs{grid-template-columns:repeat(5,minmax(0,1fr))}
  .spec dl{grid-template-columns:minmax(0,1fr)}
  .legal dl div{grid-template-columns:minmax(0,1fr);gap:2px}
  .memo-row{grid-template-columns:70px minmax(0,1fr)}
  .memo-row img{width:70px;height:70px}
  .memo-sub{grid-column:2}
  .ft-links{grid-template-columns:minmax(0,1fr)}
}