/* レイアウト: 中央に大きく開いた検索欄が主役。入力すると下にチャット式で結果が積み上がる。
   組版は黒地 × 明朝の見出し × 広い字間。価格は極太ではなく「細く・大きく」組んで余白で見せる。
   二色のグラデーションはVSバッジだけに残し、文字には一切使わない。単一テーマ(ダーク固定)。 */
:root{
  --ink:#0B0B0D;
  --surface:#131316;
  --raised:#1A1A1E;
  --line:#26262C;
  --line-2:#35353D;
  --fg:#EDEAE4;
  --fg-2:#A5A1A8;
  --muted:#6E6A74;
  --bone:#E3D5BC;
  --aqua:#7FD4CE;
  --rose:#E4879E;
  --font-latin:"Jost","Helvetica Neue",Arial,sans-serif;
  --font-mincho:"Zen Old Mincho","Hiragino Mincho ProN","Yu Mincho",serif;
  --font-jp:"Noto Sans JP","Hiragino Sans","Hiragino Kaku Gothic ProN",sans-serif;
  color-scheme: dark;
}

*,*::before,*::after{box-sizing:border-box}
body{
  margin:0;
  background:var(--ink);
  color:var(--fg);
  font-family:var(--font-jp);
  font-weight:400;
  font-size:15px;
  line-height:2;
  letter-spacing:.055em;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
h1,h2,h3{margin:0;font-weight:500;text-wrap:balance}
:focus-visible{outline:1px solid var(--bone);outline-offset:4px}

.wrap{
  max-width:940px;
  margin:0 auto;
  padding-left:max(16px,env(safe-area-inset-left,0px));
  padding-right:max(16px,env(safe-area-inset-right,0px));
  padding-block:0 96px;
}

/* 欧文の小見出し・ラベルは大きく字間を開けた小文字サイズで統一 */
.eyebrow{
  font-family:var(--font-latin);
  font-weight:400;
  font-size:10px;
  letter-spacing:.32em;
  text-transform:uppercase;
  color:var(--muted);
}

/* ---- header ---- */
.site{
  display:flex;
  align-items:baseline;
  gap:16px;
  padding-block:30px 26px;
}
.mark{
  font-family:var(--font-mincho);
  font-weight:500;
  font-size:17px;
  letter-spacing:.3em;
  color:var(--fg);
}
.mark-latin{
  font-family:var(--font-latin);
  font-weight:300;
  font-size:9.5px;
  letter-spacing:.34em;
  text-transform:uppercase;
  color:var(--muted);
}

/* ---- hero ---- */
.hero{
  padding-block:clamp(52px,11vw,124px) 0;
  text-align:center;
}
.hero h1{
  font-family:var(--font-mincho);
  font-weight:500;
  font-size:clamp(27px,5.4vw,46px);
  line-height:1.72;
  letter-spacing:.14em;
}
.hero h1 em{
  font-style:normal;
  color:var(--bone);
}
.hero .lead{
  margin:26px auto 0;
  max-width:36ch;
  font-size:13.5px;
  line-height:2.1;
  letter-spacing:.09em;
  color:var(--fg-2);
}

.searchbox{
  margin:46px auto 0;
  max-width:640px;
  text-align:left;
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line-2);
  padding:0 2px 14px;
  transition:border-color .25s;
}
.searchbox:focus-within{border-bottom-color:var(--bone)}
.searchbox textarea{
  display:block;
  width:100%;
  resize:none;
  border:0;
  background:none;
  color:var(--fg);
  font-family:var(--font-mincho);
  font-size:clamp(18px,3vw,23px);
  font-weight:400;
  line-height:1.7;
  letter-spacing:.12em;
  min-height:38px;
  max-height:140px;
}
.searchbox textarea::placeholder{color:var(--muted);letter-spacing:.1em}
.searchbox textarea:focus{outline:0}
.searchbox-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:14px;
}
.hint{
  font-family:var(--font-latin);
  font-size:10px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--muted);
}
.send{
  flex:none;
  width:38px;
  height:38px;
  border:1px solid var(--line-2);
  border-radius:50%;
  background:none;
  color:var(--fg);
  font-family:var(--font-latin);
  font-size:15px;
  font-weight:300;
  line-height:1;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:border-color .2s,color .2s;
}
.send:hover{border-color:var(--bone);color:var(--bone)}

.chips{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 12px;margin-top:34px}
.chip{
  font-family:var(--font-jp);
  font-size:12px;
  font-weight:400;
  letter-spacing:.12em;
  color:var(--fg-2);
  background:none;
  border:0;
  border-bottom:1px solid var(--line);
  padding:4px 2px;
  cursor:pointer;
  transition:color .2s,border-color .2s;
}
.chip:hover{color:var(--bone);border-bottom-color:var(--bone)}

.demo{
  margin:52px auto 0;
  max-width:52ch;
  font-size:11.5px;
  line-height:2.1;
  letter-spacing:.07em;
  color:var(--muted);
}

/* ---- chat log ---- */
.log{display:flex;flex-direction:column;gap:72px;padding-block:88px 0}
.exchange{border-top:1px solid var(--line);padding-top:38px}
.asked{display:flex;flex-direction:column;gap:10px}
.asked b{
  font-family:var(--font-mincho);
  font-weight:500;
  font-size:clamp(21px,3.6vw,28px);
  letter-spacing:.14em;
  line-height:1.6;
}
.answer{
  margin:24px 0 0;
  max-width:54ch;
  font-size:13.5px;
  line-height:2.2;
  letter-spacing:.08em;
  color:var(--fg-2);
}
.answer b{color:var(--fg);font-weight:500}
.answer.thinking{color:var(--muted)}

/* 写真が主役の横スクロールカード */
.cards{
  display:flex;
  gap:20px;
  overflow-x:auto;
  padding:40px 2px 16px;
  scroll-snap-type:x proximity;
  -webkit-overflow-scrolling:touch;
}
.card{
  flex:none;
  width:236px;
  min-width:0;
  scroll-snap-align:start;
}
.thumb{
  position:relative;
  aspect-ratio:4/5;
  background:var(--surface);
  border:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
}
.card.base .thumb{background:var(--ink)}
.thumb .ph{
  font-family:var(--font-latin);
  font-size:9.5px;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:var(--muted);
}
.tag{
  position:absolute;
  top:0;
  left:0;
  z-index:1;
  font-family:var(--font-jp);
  font-size:10px;
  font-weight:400;
  letter-spacing:.18em;
  padding:7px 13px;
  background:var(--ink);
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
  color:var(--fg-2);
}
.tag.closest{color:var(--bone)}
.tag.value{color:var(--aqua)}
.tag.cheap{color:var(--rose)}
.card-body{padding-top:18px}
.shop{
  font-family:var(--font-latin);
  font-size:9.5px;
  letter-spacing:.26em;
  text-transform:uppercase;
  color:var(--muted);
}
.name{
  font-size:12.5px;
  line-height:1.9;
  letter-spacing:.09em;
  margin-top:8px;
  color:var(--fg-2);
}
.price{
  font-family:var(--font-latin);
  font-weight:300;
  font-size:34px;
  line-height:1.2;
  letter-spacing:.03em;
  margin-top:14px;
  font-variant-numeric:tabular-nums;
}
.card.base .price{color:var(--muted);text-decoration:line-through;text-decoration-thickness:1px}
.card:not(.base) .price{color:var(--fg)}
.off{
  display:block;
  margin-top:8px;
  font-family:var(--font-latin);
  font-weight:400;
  font-size:11px;
  letter-spacing:.24em;
  color:var(--bone);
  font-variant-numeric:tabular-nums;
}
.go{
  display:inline-block;
  margin-top:16px;
  font-family:var(--font-latin);
  font-size:10px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--muted);
  border-bottom:1px solid var(--line-2);
  padding-bottom:4px;
  transition:color .2s,border-color .2s;
}
.card:hover .go{color:var(--bone);border-bottom-color:var(--bone)}

/* 比較表 */
.cmp-toggle{
  margin-top:12px;
  background:none;
  border:0;
  padding:4px 0;
  font-family:var(--font-latin);
  font-size:10px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--muted);
  cursor:pointer;
  border-bottom:1px solid var(--line-2);
}
.cmp-toggle:hover{color:var(--bone);border-bottom-color:var(--bone)}
.cmp{margin-top:26px;overflow-x:auto}
.cmp table{border-collapse:collapse;width:100%;min-width:520px;font-size:12px}
.cmp th,.cmp td{
  text-align:left;
  padding:14px 20px 14px 0;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
  letter-spacing:.09em;
}
.cmp th{
  font-family:var(--font-latin);
  font-weight:400;
  font-size:9.5px;
  letter-spacing:.26em;
  text-transform:uppercase;
  color:var(--muted);
}
.cmp td{color:var(--fg-2)}
.cmp td:first-child{color:var(--muted);width:128px}

.followup{
  display:flex;
  align-items:center;
  gap:16px;
  margin-top:44px;
  border-bottom:1px solid var(--line);
  padding-bottom:12px;
  max-width:560px;
}
.followup input{
  flex:1;
  min-width:0;
  border:0;
  background:none;
  color:var(--fg);
  font-family:var(--font-jp);
  font-size:13.5px;
  letter-spacing:.1em;
}
.followup input::placeholder{color:var(--muted)}
.followup input:focus{outline:0}
.followup .send{width:32px;height:32px;font-size:13px}

/* ---- セクション見出し ---- */
.section-head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  padding-bottom:20px;
  border-bottom:1px solid var(--line);
}
.section-head h2{
  font-family:var(--font-mincho);
  font-weight:500;
  font-size:17px;
  letter-spacing:.26em;
}

/* ---- 人気の比較 ---- */
.popular{padding-block:104px 0}
.grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(258px,1fr));
  gap:52px 28px;
  margin-top:44px;
}
.vs{display:block}
.vs-thumb{
  position:relative;
  display:grid;
  grid-template-columns:1fr 1fr;
  aspect-ratio:4/3;
  background:var(--surface);
  border:1px solid var(--line);
}
.slot{position:relative;overflow:hidden}
.slot + .slot{border-left:1px solid var(--line)}
.vs-badge{
  position:absolute;
  top:50%;
  left:50%;
  transform:translate(-50%,-50%);
  width:38px;
  height:38px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--aqua),var(--rose));
  color:var(--ink);
  font-family:var(--font-latin);
  font-size:11px;
  font-weight:400;
  letter-spacing:.14em;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 0 0 6px var(--ink);
}
.vs-body{padding-top:20px}
.cat{
  font-family:var(--font-latin);
  font-size:9.5px;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:var(--muted);
}
.vs-title{
  font-family:var(--font-mincho);
  font-weight:500;
  font-size:15px;
  line-height:1.9;
  letter-spacing:.11em;
  margin-top:12px;
}
.prices{display:flex;align-items:baseline;gap:18px;margin-top:18px;flex-wrap:wrap}
.prices .was{
  font-family:var(--font-latin);
  font-weight:300;
  font-size:15px;
  letter-spacing:.04em;
  color:var(--muted);
  text-decoration:line-through;
  text-decoration-thickness:1px;
  font-variant-numeric:tabular-nums;
}
.prices .now{
  font-family:var(--font-latin);
  font-weight:300;
  font-size:34px;
  line-height:1;
  letter-spacing:.03em;
  color:var(--fg);
  font-variant-numeric:tabular-nums;
}
.vs-off{
  display:block;
  margin-top:12px;
  font-family:var(--font-latin);
  font-size:11px;
  letter-spacing:.24em;
  color:var(--bone);
}

/* ---- about / footer ---- */
.about{padding-block:104px 0}
.about p{
  margin:28px 0 0;
  font-size:13px;
  line-height:2.3;
  letter-spacing:.08em;
  color:var(--fg-2);
  max-width:58ch;
}
.about p b{color:var(--fg);font-weight:500}
footer{
  margin-top:96px;
  padding-top:26px;
  border-top:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:10px;
  font-size:11px;
  line-height:2;
  letter-spacing:.08em;
  color:var(--muted);
  max-width:62ch;
}
footer p{margin:0}

/* ---- 詳細ページ ---- */
.crumb{
  font-family:var(--font-latin);
  font-size:10px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--muted);
  padding-block:10px 0;
}
.crumb a{border-bottom:1px solid var(--line)}
.detail{padding-block:44px 0}
.detail h1{
  font-family:var(--font-mincho);
  font-weight:500;
  font-size:clamp(24px,4.6vw,38px);
  line-height:1.78;
  letter-spacing:.14em;
  margin-top:20px;
}
.detail .sub{
  margin:30px 0 0;
  font-size:13.5px;
  line-height:2.2;
  letter-spacing:.08em;
  color:var(--fg-2);
  max-width:48ch;
}

.headline{
  display:flex;
  flex-wrap:wrap;
  gap:36px 64px;
  margin-top:52px;
  padding-block:36px;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.headline .col{min-width:0}
.headline .k{
  font-family:var(--font-latin);
  font-size:9.5px;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:var(--muted);
}
.headline .v{
  font-family:var(--font-latin);
  font-weight:300;
  font-size:clamp(34px,6vw,48px);
  line-height:1.15;
  letter-spacing:.03em;
  margin-top:12px;
  font-variant-numeric:tabular-nums;
}
.headline .col.base .v{color:var(--muted);text-decoration:line-through;text-decoration-thickness:1px}
.headline .col.dupe .v{color:var(--fg)}
.headline .col.save .v{color:var(--bone)}

.rows{display:flex;flex-direction:column;margin-top:36px}
.row{
  display:grid;
  grid-template-columns:76px minmax(0,1fr) auto;
  gap:24px;
  align-items:center;
  padding-block:24px;
  border-bottom:1px solid var(--line);
}
.row:first-child{border-top:1px solid var(--line)}
.row .ph{
  width:76px;
  aspect-ratio:4/5;
  background:var(--surface);
  border:1px solid var(--line);
}
.row .n{font-size:13px;letter-spacing:.1em;line-height:1.8}
.row .why{font-size:11.5px;letter-spacing:.07em;color:var(--muted);margin-top:6px;line-height:1.9}
.row .buy{text-align:right}
.row .buy .p{
  font-family:var(--font-latin);
  font-weight:300;
  font-size:26px;
  letter-spacing:.03em;
  font-variant-numeric:tabular-nums;
}
.row .buy .s{
  font-family:var(--font-latin);
  font-size:9.5px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--muted);
  margin-top:6px;
}

.points{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:36px 32px;margin-top:40px}
.point .k{
  font-family:var(--font-latin);
  font-size:9.5px;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--muted);
}
.point .v{font-size:12.5px;line-height:2;letter-spacing:.09em;margin-top:10px;color:var(--fg-2)}

.video{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:28px;
  margin-top:40px;
}
.video .frame{
  flex:none;
  width:88px;
  aspect-ratio:9/16;
  background:linear-gradient(165deg,var(--aqua),var(--rose));
  color:var(--ink);
  font-family:var(--font-latin);
  font-size:10px;
  letter-spacing:.24em;
  text-transform:uppercase;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
}
.video .txt{
  font-size:12.5px;
  line-height:2.1;
  letter-spacing:.08em;
  color:var(--fg-2);
  max-width:42ch;
}
.video .txt b{color:var(--fg);font-weight:500}

.fineprint{
  margin-top:72px;
  font-size:11px;
  line-height:2.2;
  letter-spacing:.07em;
  color:var(--muted);
  max-width:60ch;
}

@media (max-width:460px){
  .grid{grid-template-columns:1fr;gap:44px}
  .row{grid-template-columns:60px minmax(0,1fr);gap:18px}
  .row .ph{width:60px}
  .row .buy{grid-column:1/-1;text-align:left;margin-top:4px}
  .headline{gap:28px 40px}
  .card{width:208px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}