@charset "UTF-8";

:root{
  --ink:#171717;
  --muted:#6b6b6b;
  --line:#e8e8e8;
  --bg:#f7f7f5;
  --white:#fff;
  --green:#2f8b63;
  --blue:#397ec2;
  --warm:#e98a3c;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic","Meiryo",sans-serif;
  color:var(--ink);
  background:#fff;
  line-height:1.8;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.wrap{width:min(1080px,calc(100% - 40px));margin:auto}
.narrow{max-width:780px}

.header{
  background:#fff;
  border-bottom:1px solid var(--line);
}
.header-inner{
  min-height:70px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.logo{
  font-size:1.2rem;
  font-weight:900;
  letter-spacing:.04em;
}
.mini-btn{
  border:1px solid #222;
  padding:8px 16px;
  border-radius:999px;
  font-size:.85rem;
  font-weight:700;
}

.hero{
  background:var(--bg);
  padding:74px 0;
}
.hero-grid{
  display:grid;
  grid-template-columns:1fr .88fr;
  gap:64px;
  align-items:center;
}
.hello{
  margin:0 0 6px;
  font-size:1rem;
  font-weight:700;
}
h1{
  margin:0;
  font-size:clamp(2.5rem,6vw,5rem);
  line-height:1.08;
  letter-spacing:-.04em;
}
h1 span{
  display:inline-block;
  border-bottom:8px solid #ffd95a;
}
.hero-text{
  font-size:1.12rem;
  margin:28px 0 14px;
}
.hero-note{
  color:var(--muted);
  margin:0 0 30px;
}
.main-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:54px;
  padding:0 28px;
  border-radius:999px;
  background:#111;
  color:#fff;
  font-weight:800;
}
.hero-photo{
  margin:0;
  background:#fff;
  padding:14px;
  border:1px solid var(--line);
  box-shadow:0 18px 40px rgba(0,0,0,.08);
  transform:rotate(1deg);
}
.hero-photo img{
  aspect-ratio:4/5;
  width:100%;
  object-fit:cover;
}
.hero-photo figcaption{
  text-align:center;
  font-size:.85rem;
  color:var(--muted);
  padding:10px 0 2px;
}

.story{
  text-align:center;
  padding:76px 0 30px;
}
.section-label{
  margin:0 0 8px;
  font-size:.82rem;
  font-weight:900;
  letter-spacing:.14em;
  color:var(--blue);
}
.story h2,.simple-guide h2,.last h2{
  font-size:clamp(1.8rem,4vw,3rem);
  line-height:1.35;
  margin:0 0 18px;
}

.size-section{padding:34px 0 84px}

.ss-feature{
  border:1px solid var(--line);
  border-radius:24px;
  overflow:hidden;
  background:#fff;
  box-shadow:0 12px 34px rgba(0,0,0,.06);
  margin-bottom:26px;
}
.ss-mark{
  background:linear-gradient(90deg,#2f8b63 0 33.333%,#397ec2 33.333% 66.666%,#f2f2f2 66.666% 100%);
  color:#fff;
  text-shadow:0 1px 3px rgba(0,0,0,.25);
}
.ss-content{padding:30px}
.ss-content h3{
  margin:0 0 8px;
  font-size:1.55rem;
  line-height:1.45;
}
.ss-lead{
  color:var(--muted);
  margin:0 0 22px;
}
.ss-variants{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
}
.variant-card{
  border:1px solid var(--line);
  border-radius:16px;
  padding:18px;
  background:#fff;
}
.variant-card h4{
  margin:0 0 8px;
  font-size:1.05rem;
}
.variant-card p{
  margin:0 0 16px;
  color:var(--muted);
  font-size:.9rem;
}
.variant-color-dot{
  width:28px;
  height:28px;
  border-radius:50%;
  margin-bottom:12px;
  border:1px solid rgba(0,0,0,.08);
}
.variant-green .variant-color-dot{background:#2f8b63}
.variant-blue .variant-color-dot{background:#397ec2}
.variant-white .variant-color-dot{background:#fff;border-color:#bfc6cc}
.variant-green{border-top:5px solid #2f8b63}
.variant-blue{border-top:5px solid #397ec2}
.variant-white{border-top:5px solid #d9dfe3}
.variant-note{
  margin:16px 0 0;
  font-size:.82rem;
  color:var(--muted);
}

.cards{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.two-cards{grid-template-columns:repeat(2,1fr)}
.card{
  border:1px solid var(--line);
  border-radius:22px;
  overflow:hidden;
  background:#fff;
  box-shadow:0 12px 34px rgba(0,0,0,.06);
}
.size-mark{
  min-height:90px;
  display:grid;
  place-items:center;
  color:#fff;
  font-size:2.5rem;
  font-weight:900;
}
.s .size-mark{background:var(--blue)}
.l .size-mark{background:var(--warm)}
.card-content{padding:26px}
.for{
  font-size:.78rem;
  font-weight:900;
  color:var(--muted);
  margin:0 0 6px;
}
.card h3{
  margin:0 0 18px;
  line-height:1.45;
  font-size:1.35rem;
}
.card ul{
  margin:0 0 24px;
  padding-left:1.2em;
}
.card li{margin:.35em 0}
.message{
  background:var(--bg);
  border-radius:14px;
  padding:15px;
  margin-bottom:20px;
}
.message strong{display:block;margin-bottom:5px}
.message p{margin:0;font-size:.9rem;color:var(--muted)}
.amazon{
  display:flex;
  min-height:50px;
  align-items:center;
  justify-content:center;
  background:#111;
  color:#fff;
  border-radius:12px;
  font-weight:800;
  padding:0 14px;
  text-align:center;
}

.simple-guide{
  background:#111;
  color:#fff;
  padding:74px 0;
}
.simple-guide .section-label{color:#ffd95a}
.guide-list{
  display:grid;
  gap:10px;
  margin-top:28px;
}
.guide-list div{
  display:grid;
  grid-template-columns:80px 1fr;
  align-items:center;
  background:#222;
  border:1px solid #333;
  border-radius:14px;
  overflow:hidden;
}
.guide-list span{
  display:grid;
  place-items:center;
  min-height:62px;
  font-size:1.35rem;
  font-weight:900;
  border-right:1px solid #333;
}
.guide-list strong{padding:0 18px}

.last{
  text-align:center;
  padding:88px 0;
}
.last p{margin:0 0 10px;color:var(--muted)}

footer{
  border-top:1px solid var(--line);
  padding:28px 0;
  text-align:center;
  color:var(--muted);
  font-size:.85rem;
}

.sp{display:none}

@media(max-width:860px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-photo{max-width:520px;margin:auto}
  .ss-variants{grid-template-columns:1fr}
  .two-cards{grid-template-columns:1fr}
}
@media(max-width:600px){
  .wrap{width:min(100% - 24px,1080px)}
  .hero{padding:48px 0}
  .sp{display:block}
  .guide-list div{grid-template-columns:64px 1fr}
}


/* 公式サイト・まとめ買い */
.official-bulk{
  padding:0 0 84px;
}
.official-bulk-head{
  text-align:center;
  max-width:780px;
  margin:0 auto 28px;
}
.official-bulk-head h2{
  margin:0 0 14px;
  font-size:clamp(1.8rem,4vw,3rem);
  line-height:1.35;
}
.official-bulk-head p:last-child{
  margin:0;
  color:var(--muted);
}
.bulk-groups{
  display:grid;
  gap:14px;
}
.bulk-group{
  display:grid;
  grid-template-columns:90px 1fr minmax(260px,420px);
  gap:20px;
  align-items:center;
  padding:20px;
  border:1px solid var(--line);
  border-radius:18px;
  background:#fff;
  box-shadow:0 8px 24px rgba(0,0,0,.05);
}
.bulk-size{
  min-height:72px;
  display:grid;
  place-items:center;
  border-radius:14px;
  background:#111;
  color:#fff;
  font-size:1.8rem;
  font-weight:900;
}
.bulk-copy strong{
  display:block;
  margin-bottom:3px;
}
.bulk-copy span{
  color:var(--muted);
  font-size:.9rem;
}
.bulk-buttons{
  display:flex;
  gap:10px;
  justify-content:flex-end;
  flex-wrap:wrap;
}
.official-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  padding:0 16px;
  border-radius:12px;
  background:#fff4d6;
  border:1px solid #e6bd55;
  color:#6b4b00;
  font-weight:800;
  text-align:center;
}
.official-btn:hover{
  background:#ffe9a8;
}
.bulk-note{
  margin:14px 0 0;
  text-align:center;
  color:var(--muted);
  font-size:.82rem;
}

@media(max-width:860px){
  .bulk-group{
    grid-template-columns:70px 1fr;
  }
  .bulk-buttons{
    grid-column:1 / -1;
    justify-content:stretch;
  }
  .official-btn{
    flex:1 1 180px;
  }
}

@media(max-width:600px){
  .official-bulk{
    padding-bottom:64px;
  }
  .bulk-group{
    grid-template-columns:58px 1fr;
    gap:14px;
    padding:16px;
  }
  .bulk-size{
    min-height:58px;
    font-size:1.35rem;
  }
  .bulk-buttons{
    display:grid;
    grid-template-columns:1fr;
  }
}


/* 上部の購入先ナビ */
.purchase-nav{
  background:#fff;
  border-bottom:1px solid var(--line);
  padding:14px 0;
}
.purchase-nav-inner{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:12px;
}
.purchase-nav-btn{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  min-height:66px;
  padding:10px 18px;
  border-radius:16px;
  text-align:center;
  transition:transform .15s ease, box-shadow .15s ease;
}
.purchase-nav-btn:hover{
  transform:translateY(-1px);
  box-shadow:0 8px 20px rgba(0,0,0,.07);
}
.purchase-nav-kicker{
  font-size:.76rem;
  font-weight:700;
  margin-bottom:1px;
  opacity:.75;
}
.purchase-nav-btn strong{
  font-size:1rem;
  font-weight:900;
}
.amazon-nav{
  background:#111;
  color:#fff;
}
.official-nav{
  background:#fff4d6;
  color:#6b4b00;
  border:1px solid #e6bd55;
}

/* アンカー移動時に上部が詰まりすぎないように */
#amazon-shop,
#official-shop{
  scroll-margin-top:24px;
}

@media(max-width:600px){
  .purchase-nav{
    padding:10px 0;
  }
  .purchase-nav-inner{
    gap:8px;
  }
  .purchase-nav-btn{
    min-height:60px;
    padding:8px 10px;
    border-radius:13px;
  }
  .purchase-nav-kicker{
    font-size:.67rem;
  }
  .purchase-nav-btn strong{
    font-size:.9rem;
  }
}