:root {
  --bg: #fffdfd;
  --bg-soft: #fbf7fb;
  --surface: #ffffff;
  --surface-pink: #fff4f7;
  --surface-lav: #f7f2ff;
  --ink: #24263a;
  --ink-soft: #5e6074;
  --muted: #85879a;
  --line: #ece5eb;
  --line-strong: #e1d6df;
  --pink: #f24f86;
  --pink-dark: #d93d72;
  --pink-soft: #ffdbe7;
  --lav: #9b73e8;
  --lav-soft: #eee5ff;
  --green: #28a267;
  --warning: #b77b22;
  --shadow: 0 24px 70px rgba(66, 38, 61, .10);
  --max: 1240px;
  --r-sm: 12px;
  --r-md: 18px;
  --r-lg: 28px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Yu Gothic UI", "Noto Sans JP", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input { font: inherit; }
.container { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; }
.eyebrow { color: var(--pink-dark); font-size: 12px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.muted { color: var(--muted); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,253,253,.92);
  border-bottom: 1px solid rgba(232,224,230,.86);
  backdrop-filter: blur(18px);
}
.navbar {
  width: min(calc(100% - 48px), var(--max));
  height: 72px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 34px;
}
.brand-logo { display: inline-flex; align-items: center; gap: 10px; min-width: 0; }
.brand-logo img { width: 38px; height: 38px; border-radius: 10px; }
.brand-logo span { color: var(--ink); font-size: 17px; font-weight: 850; letter-spacing: -.03em; }
.brand-logo b { color: var(--pink); }
.nav-menu { display: flex; justify-content: center; gap: 30px; margin: 0; padding: 0; list-style: none; }
.nav-menu a { position: relative; color: var(--ink-soft); font-size: 13px; font-weight: 750; }
.nav-menu a:hover, .nav-menu a.active { color: var(--ink); }
.nav-menu a.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -13px; height: 2px; background: var(--pink); }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink); }

.btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  border-radius: 11px;
  background: #fff;
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
  transition: transform .16s ease, border-color .16s ease, background .16s ease;
}
.btn:hover { transform: translateY(-1px); border-color: #d8c6d2; }
.btn-primary { border-color: var(--pink); background: var(--pink); color: #fff; box-shadow: 0 10px 26px rgba(242,79,134,.20); }
.btn-primary:hover { background: var(--pink-dark); border-color: var(--pink-dark); }
.btn-large { min-height: 54px; padding: 0 24px; font-size: 15px; }

.hero {
  position: relative;
  overflow: hidden;
  padding: 88px 0 100px;
  background:
    linear-gradient(156deg, rgba(255,231,240,.88) 0 22%, transparent 22% 67%, rgba(235,224,255,.58) 67% 100%),
    var(--bg);
}
.hero::before,
.hero::after { content: ""; position: absolute; width: 380px; height: 48px; border-radius: 999px; transform: rotate(-42deg); background: linear-gradient(90deg, rgba(242,79,134,.11), rgba(155,115,232,.06)); pointer-events: none; }
.hero::before { right: -80px; top: 110px; }
.hero::after { left: -120px; bottom: 72px; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0,.82fr) minmax(560px,1.18fr); align-items: center; gap: 52px; }
.hero-copy { min-width: 0; }
.hero-kicker { margin-bottom: 20px; color: var(--ink-soft); font-size: 13px; font-weight: 750; }
.hero-title { margin: 0; font-size: clamp(46px,5.5vw,78px); line-height: 1.08; letter-spacing: -.055em; }
.hero-title .accent { color: var(--pink); }
.hero-title .accent-lav { color: var(--lav); }
.hero-desc { max-width: 630px; margin: 26px 0 0; color: var(--ink-soft); font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 32px; }
.hero-proof { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 28px; color: var(--ink-soft); font-size: 12px; font-weight: 700; }
.hero-proof span { display: inline-flex; align-items: center; gap: 7px; }
.hero-proof i { width: 23px; height: 23px; display: inline-grid; place-items: center; border-radius: 7px; background: #fff; border: 1px solid var(--line); color: var(--pink); font-style: normal; }
.product-stage { position: relative; min-width: 0; padding: 26px 0 18px; }
.product-window { position: relative; z-index: 2; overflow: hidden; border: 1px solid rgba(208,193,205,.8); border-radius: 18px; background: #fff; box-shadow: var(--shadow); transform: rotate(1.3deg); }
.product-window::before { content: ""; display: block; height: 26px; background: linear-gradient(#f9f6f8,#f3eff3); border-bottom: 1px solid var(--line); }
.product-window img { width: 100%; }
.product-note { position: absolute; right: 10px; top: -12px; z-index: 3; color: var(--pink-dark); font-size: 13px; font-weight: 800; transform: rotate(-5deg); }
.product-note::before { content: "／"; margin-right: 6px; }
.product-note::after { content: "＼"; margin-left: 6px; }

.proof-strip { padding: 26px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff; }
.proof-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 0; }
.proof-item { min-width: 0; padding: 4px 26px; border-right: 1px solid var(--line); }
.proof-item:first-child { padding-left: 0; }
.proof-item:last-child { border-right: 0; }
.proof-item b { display: block; margin-bottom: 5px; font-size: 14px; }
.proof-item p { margin: 0; color: var(--ink-soft); font-size: 13px; line-height: 1.65; }

.section { padding: 100px 0; }
.section.soft { background: var(--bg-soft); }
.section-head { display: grid; grid-template-columns: minmax(0,.7fr) minmax(0,1.3fr); gap: 44px; align-items: end; margin-bottom: 44px; }
.section-head h2 { margin: 8px 0 0; font-size: clamp(32px,4vw,52px); line-height: 1.16; letter-spacing: -.045em; }
.section-head p { max-width: 650px; margin: 0; color: var(--ink-soft); font-size: 16px; line-height: 1.85; }

.walkthrough { display: grid; gap: 70px; }
.walk-row { display: grid; grid-template-columns: minmax(0,.78fr) minmax(560px,1.22fr); gap: 44px; align-items: center; }
.walk-row:nth-child(even) { grid-template-columns: minmax(560px,1.22fr) minmax(0,.78fr); }
.walk-row:nth-child(even) .walk-copy { order: 2; }
.walk-row:nth-child(even) .walk-visual { order: 1; }
.walk-copy h3 { margin: 10px 0 14px; font-size: 30px; letter-spacing: -.035em; }
.walk-copy p { margin: 0; color: var(--ink-soft); line-height: 1.85; }
.walk-list { display: grid; gap: 9px; margin: 22px 0 0; padding: 0; list-style: none; }
.walk-list li { position: relative; padding-left: 24px; color: var(--ink-soft); font-size: 13px; line-height: 1.55; }
.walk-list li::before { content: ""; position: absolute; left: 3px; top: .6em; width: 7px; height: 7px; border-radius: 50%; background: var(--pink); }
.walk-visual { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: 0 18px 55px rgba(56,36,51,.08); }
.walk-visual img { width: 100%; }

.use-cases { display: grid; grid-template-columns: 1.05fr .95fr; gap: 18px; }
.use-primary { min-height: 360px; padding: 38px; border-radius: 24px; background: linear-gradient(145deg,#fff1f6,#f5efff); display: flex; flex-direction: column; justify-content: space-between; }
.use-primary h3 { max-width: 550px; margin: 0; font-size: 34px; line-height: 1.28; letter-spacing: -.035em; }
.use-primary p { max-width: 560px; color: var(--ink-soft); line-height: 1.8; }
.use-stack { display: grid; gap: 18px; }
.use-small { min-height: 170px; padding: 28px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.use-small b { display: block; margin-bottom: 8px; font-size: 17px; }
.use-small p { margin: 0; color: var(--ink-soft); line-height: 1.7; }

.cta-band { padding: 42px 0 80px; }
.cta-panel { display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: center; gap: 30px; padding: 34px 38px; border: 1px solid #f0d6df; border-radius: 24px; background: linear-gradient(135deg,#fff7fa,#f7f2ff); }
.cta-panel h2 { margin: 0; font-size: 30px; letter-spacing: -.04em; }
.cta-panel p { margin: 8px 0 0; color: var(--ink-soft); }

.page-hero { padding: 74px 0 54px; border-bottom: 1px solid var(--line); background: linear-gradient(135deg,#fff9fb,#f8f4ff); }
.page-hero h1 { max-width: 850px; margin: 8px 0 16px; font-size: clamp(38px,5vw,62px); letter-spacing: -.05em; line-height: 1.12; }
.page-hero p { max-width: 720px; color: var(--ink-soft); line-height: 1.85; font-size: 16px; }
.page-section { padding: 70px 0; }
.content-grid { display: grid; grid-template-columns: 260px minmax(0,1fr); gap: 54px; }
.side-index { align-self: start; position: sticky; top: 100px; display: grid; gap: 8px; }
.side-index a { padding: 8px 10px; border-left: 2px solid var(--line); color: var(--ink-soft); font-size: 13px; }
.side-index a:hover { border-color: var(--pink); color: var(--ink); }
.prose { min-width: 0; }
.prose h2 { margin: 0 0 18px; font-size: 30px; }
.prose h3 { margin: 34px 0 12px; font-size: 20px; }
.prose p, .prose li { color: var(--ink-soft); line-height: 1.8; }
.prose code { padding: 2px 6px; border-radius: 5px; background: #f6f1f7; }
.feature-block { display: grid; grid-template-columns: minmax(0,.8fr) minmax(520px,1.2fr); gap: 38px; align-items: center; padding: 46px 0; border-bottom: 1px solid var(--line); }
.feature-block:last-child { border-bottom: 0; }
.feature-block:nth-child(even) .feature-copy { order: 2; }
.feature-block:nth-child(even) .feature-image { order: 1; }
.feature-image { overflow: hidden; border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 18px 50px rgba(59,37,53,.07); }
.feature-copy h2 { margin: 8px 0 14px; font-size: 30px; letter-spacing: -.035em; }
.feature-copy p { color: var(--ink-soft); line-height: 1.8; }

.download-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; }
.download-card { padding: 30px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.download-card.primary { border-color: #f4c3d3; background: #fff8fa; }
.download-card h2 { margin: 0 0 8px; }
.download-card p { color: var(--ink-soft); line-height: 1.7; }
.download-meta { display: flex; gap: 10px; flex-wrap: wrap; margin: 18px 0; color: var(--muted); font-size: 12px; }
.notice { margin-top: 18px; padding: 14px 16px; border-left: 3px solid var(--warning); background: #fffaf0; color: #6d5733; font-size: 13px; line-height: 1.7; }
.release-status { margin-top: 10px; color: var(--muted); font-size: 12px; }

.site-footer { border-top: 1px solid var(--line); background: #fff; }
.footer-inner { min-height: 120px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 30px; }
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; color: var(--muted); font-size: 12px; }
.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-brand img { width: 30px; height: 30px; border-radius: 8px; }
.footer-brand strong { color: var(--pink-dark); }
.footer-copy { color: var(--muted); font-size: 11px; text-align: right; }

:focus-visible { outline: 2px solid var(--pink); outline-offset: 3px; }

@media (max-width: 980px) {
  .navbar { grid-template-columns: auto 1fr auto; }
  .nav-menu { display: none; position: absolute; left: 20px; right: 20px; top: 64px; padding: 16px; border: 1px solid var(--line); border-radius: 14px; background: #fff; box-shadow: var(--shadow); flex-direction: column; gap: 12px; }
  .nav-menu.open { display: flex; }
  .menu-toggle { display: inline-grid; place-items: center; }
  .nav-actions .btn { display: none; }
  .hero { padding-top: 66px; }
  .hero-grid, .section-head, .walk-row, .walk-row:nth-child(even), .feature-block, .use-cases, .cta-panel, .content-grid { grid-template-columns: 1fr; }
  .walk-row:nth-child(even) .walk-copy, .walk-row:nth-child(even) .walk-visual, .feature-block:nth-child(even) .feature-copy, .feature-block:nth-child(even) .feature-image { order: initial; }
  .product-stage { max-width: 760px; }
  .product-window { transform: none; }
  .side-index { display: none; }
}

@media (max-width: 720px) {
  .container, .navbar { width: min(calc(100% - 28px), var(--max)); }
  .navbar { height: 64px; }
  .brand-logo span { font-size: 15px; }
  .hero { padding: 54px 0 66px; background: linear-gradient(155deg,rgba(255,232,240,.82),transparent 48%), var(--bg); }
  .hero-title { font-size: clamp(40px,12vw,56px); }
  .hero-desc { font-size: 15px; line-height: 1.8; }
  .hero-actions { display: grid; }
  .hero-actions .btn { width: 100%; }
  .product-note { display: none; }
  .proof-grid, .download-grid { grid-template-columns: 1fr; }
  .proof-item { padding: 16px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .proof-item:last-child { border-bottom: 0; }
  .section { padding: 72px 0; }
  .section-head { gap: 18px; margin-bottom: 34px; }
  .walkthrough { gap: 56px; }
  .walk-row, .feature-block { gap: 24px; }
  .walk-copy h3, .feature-copy h2 { font-size: 26px; }
  .use-primary { min-height: 300px; padding: 28px; }
  .cta-panel { padding: 28px; }
  .cta-panel .btn { width: 100%; margin-top: 14px; }
  .footer-inner { padding: 28px 0; grid-template-columns: 1fr; }
  .footer-copy { text-align: left; }
}
.release-hash { margin-top: 12px; color: var(--muted); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 11px; line-height: 1.6; overflow-wrap: anywhere; }

.hero-title-ja .hero-line{display:block;white-space:nowrap}