/* =====================================================================
   Landing page (amoe-index) 固有スタイル
   ===================================================================== */
html { scroll-behavior: smooth; }
body { background: var(--ivory); color: var(--ink); font-family: var(--sans); font-weight: 300; line-height: 1.8; -webkit-font-smoothing: antialiased; overflow-x: hidden; }

/* ===== HERO ===== */
.lp-hero { min-height: 92vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: 150px 24px 90px;
  background: radial-gradient(120% 90% at 50% 0%, #f6efe3 0%, #efe6d6 45%, #e8dcc9 100%); position: relative; overflow: hidden; }
.lp-hero::before { content: ""; position: absolute; inset: 0; background:
  radial-gradient(closest-side at 18% 78%, rgba(176, 141, 87, .16), transparent 70%),
  radial-gradient(closest-side at 84% 22%, rgba(216, 183, 172, .18), transparent 70%); }
.lp-hero .inner { position: relative; z-index: 1; max-width: 760px; }
.lp-hero .k { font-size: 11px; letter-spacing: .42em; text-transform: uppercase; color: var(--gold); margin-bottom: 26px; }
.lp-hero h1 { font-family: var(--serif); font-style: italic; font-weight: 300; font-size: clamp(48px, 8.5vw, 104px); line-height: .98; letter-spacing: .01em; }
.lp-hero h1 .ja { display: block; font-family: var(--mincho); font-style: normal; font-size: clamp(15px, 2.4vw, 22px); letter-spacing: .34em; color: var(--ink); margin-top: 30px; font-weight: 500; }
.lp-hero p { font-family: var(--mincho); font-size: 14px; color: var(--ink-soft); line-height: 2.1; margin: 30px auto 0; max-width: 540px; }
.lp-hero .cta-row { display: flex; gap: 14px; justify-content: center; margin-top: 40px; flex-wrap: wrap; }
.scroll-hint { position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); font-size: 9px; letter-spacing: .3em; text-transform: uppercase; color: var(--ink-soft); z-index: 1; }

/* ===== SECTIONS ===== */
.lp-sec { max-width: 1180px; margin: 0 auto; padding: 100px 40px; }
.lp-sec.narrow { max-width: 880px; }
.sec-k { font-size: 11px; letter-spacing: .32em; text-transform: uppercase; color: var(--gold); margin-bottom: 16px; }

/* concept split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split .visual { aspect-ratio: 4/5; background: linear-gradient(150deg, #efe6d6, #e3d4bd); border: 1px solid var(--line); position: relative; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.split .visual .kanji { font-family: var(--mincho); font-size: clamp(80px, 12vw, 150px); color: rgba(176, 141, 87, .32); letter-spacing: .1em; }
.split .visual .stamp { position: absolute; bottom: 24px; right: 24px; font-family: var(--serif); font-style: italic; font-size: 18px; color: var(--ink-soft); }
.split h2 { font-family: var(--serif); font-style: italic; font-weight: 300; font-size: clamp(32px, 4.6vw, 50px); line-height: 1.12; }
.split h2 .ja { display: block; font-family: var(--mincho); font-style: normal; font-size: 15px; letter-spacing: .1em; color: var(--ink-soft); margin-top: 14px; }
.split p { font-family: var(--mincho); font-size: 13.5px; color: var(--ink-soft); line-height: 2.1; margin-top: 22px; }
.split.rev .visual { order: 2; }

/* value strip */
.vstrip { background: var(--ink); color: var(--ivory); }
.vstrip-in { max-width: 1180px; margin: 0 auto; padding: 80px 40px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; }
.vstrip .v .n { font-family: var(--serif); font-style: italic; font-size: 30px; color: var(--gold-soft); }
.vstrip .v h3 { font-family: var(--mincho); font-size: 16px; margin: 14px 0 10px; color: #f3ece0; }
.vstrip .v p { font-family: var(--mincho); font-size: 12.5px; color: #cabfb0; line-height: 1.95; }

/* shapes */
.shape-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 50px; }
.shape-c { text-align: center; }
.shape-c .img { aspect-ratio: 3/4; background: var(--ivory-deep); border: 1px solid var(--line); display: flex; align-items: flex-end; justify-content: center; padding-bottom: 18px; margin-bottom: 16px; position: relative; }
.shape-c .img .nail { width: 42%; background: linear-gradient(180deg, #f3ece0, #e6d8c2); border: 1px solid var(--gold-soft); }
.shape-c .img .nail.vs { height: 50%; border-radius: 42% 42% 38% 38%/30% 30% 70% 70%; }
.shape-c .img .nail.so { height: 62%; border-radius: 46% 46% 40% 40%/26% 26% 74% 74%; }
.shape-c .img .nail.ma { height: 74%; border-radius: 48% 48% 44% 44%/40% 40% 60% 60%; }
.shape-c .img .nail.ba { height: 82%; border-radius: 46% 46% 8% 8%/40% 40% 60% 60%; }
.shape-c h4 { font-family: var(--serif); font-style: italic; font-size: 18px; }
.shape-c .ja { font-family: var(--mincho); font-size: 11px; color: var(--ink-soft); margin-top: 3px; }

/* steps */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 50px; }
.flow .f .n { font-family: var(--serif); font-style: italic; font-size: 42px; color: var(--gold-soft); line-height: 1; }
.flow .f h4 { font-family: var(--mincho); font-size: 15px; margin: 12px 0 8px; }
.flow .f p { font-family: var(--mincho); font-size: 12px; color: var(--ink-soft); line-height: 1.9; }

/* artist teaser */
.artist-teaser { display: grid; grid-template-columns: .8fr 1.2fr; gap: 54px; align-items: center; }
.artist-teaser .av { aspect-ratio: 1; border-radius: 50%; max-width: 300px; margin: 0 auto; background: linear-gradient(150deg, #efe6d6, #ddcbb0); border: 1px solid var(--line); display: flex; align-items: center; justify-content: center; font-family: var(--serif); font-style: italic; font-size: 80px; color: rgba(176, 141, 87, .4); }
.artist-teaser blockquote { font-family: var(--serif); font-style: italic; font-size: clamp(22px, 3vw, 32px); line-height: 1.4; color: var(--ink); }
.artist-teaser .by { font-family: var(--mincho); font-size: 13px; color: var(--ink-soft); margin-top: 20px; }
.artist-teaser .by b { color: var(--ink); font-weight: 500; }

/* final cta */
.lp-final { text-align: center; padding: 110px 24px; background: radial-gradient(120% 100% at 50% 100%, #f1e7d8, #efe6d6 60%, #f7f3ec 100%); border-top: 1px solid var(--line); }
.lp-final h2 { font-family: var(--serif); font-style: italic; font-weight: 300; font-size: clamp(36px, 6vw, 68px); line-height: 1.05; }
.lp-final h2 .ja { display: block; font-family: var(--mincho); font-style: normal; font-size: 15px; letter-spacing: .2em; color: var(--ink-soft); margin-top: 20px; }
.lp-final p { font-family: var(--mincho); font-size: 13px; color: var(--ink-soft); margin: 22px auto 32px; max-width: 480px; line-height: 2; }

/* header / footer 折りたたみ（このページの崩す幅は 900px） */
@media (max-width: 900px) {
  .top-bar { padding: 7px 20px; gap: 12px; }
  .top-bar .ship-note { display: none; }
  .main-bar { grid-template-columns: auto 1fr auto; padding: 14px 20px; }
  .nav-left { display: none; }
  .logo { font-size: 22px; }
  .burger { display: flex; grid-column: 1; justify-self: start; }
  .foot-top { grid-template-columns: 1fr 1fr; gap: 30px; }
}

@media (max-width: 860px) {
  .split, .artist-teaser { grid-template-columns: 1fr; gap: 34px; }
  .split.rev .visual { order: 0; }
  .vstrip-in { grid-template-columns: 1fr; gap: 34px; }
  .shape-row { grid-template-columns: 1fr 1fr; }
  .flow { grid-template-columns: 1fr 1fr; }
  .lp-sec { padding: 64px 22px; }
}