:root {
  --navy: #12284a;
  --navy-2: #203f68;
  --coral: #ff4b4f;
  --coral-dark: #ef353c;
  --coral-soft: #fff0ef;
  --text: #17233a;
  --muted: #667085;
  --line: #e7eaf0;
  --bg: #fffdfb;
  --card: #ffffff;
  --shadow: 0 18px 50px rgba(37, 55, 86, .10);
  --radius: 24px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.container { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; }
.narrow { width: min(calc(100% - 40px), 860px); }
.center { text-align: center; }
.section-pad { padding: 96px 0; }
.sp-only { display: none; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.90);
  border-bottom: 1px solid rgba(231,234,240,.8);
  backdrop-filter: blur(14px);
}
.header-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand { display: inline-flex; flex-direction: column; align-items: flex-end; line-height: 1; }
.brand img { width: 148px; height: auto; }
.brand span { margin: 2px 4px 0 0; font-size: 14px; color: #7b8495; letter-spacing: .06em; }
.global-nav { margin-left: auto; display: flex; gap: 28px; font-size: 14px; font-weight: 700; color: #344054; }
.global-nav a:hover { color: var(--coral); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 52px;
  padding: 0 26px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: white; background: linear-gradient(135deg, #ff5c61, #ff3c43); box-shadow: 0 12px 24px rgba(255,75,79,.22); }
.btn-primary:hover { box-shadow: 0 16px 30px rgba(255,75,79,.28); }
.btn-secondary { border: 1px solid #aeb8c7; background: #fff; color: var(--navy); }
.btn-small { min-height: 44px; padding: 0 20px; font-size: 14px; }
.btn-large { min-width: 270px; min-height: 58px; }

.hero {
  overflow: hidden;
  background:
    radial-gradient(circle at 72% 25%, rgba(166,219,255,.32), transparent 32%),
    radial-gradient(circle at 24% 70%, rgba(255,204,196,.28), transparent 36%),
    linear-gradient(180deg, #fff 0%, #fffaf8 100%);
}
.hero-grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 46px; align-items: center; }
.eyebrow { margin: 0 0 12px; color: var(--coral); font-size: 13px; font-weight: 900; letter-spacing: .14em; }
.hero h1, h2, h3 { margin-top: 0; color: var(--navy); line-height: 1.35; }
.hero h1 { margin-bottom: 24px; font-size: clamp(42px, 5.2vw, 72px); letter-spacing: -.035em; }
.hero h1 span, .feature-card h3 span { color: var(--coral); }
.lead { max-width: 630px; margin: 0 0 24px; font-size: 19px; color: #344054; }
.pilot-note { margin: 26px 0; padding: 18px 20px; border-radius: 18px; background: rgba(255,75,79,.08); border: 1px solid rgba(255,75,79,.14); }
.pilot-note strong { color: var(--coral-dark); font-size: 18px; }
.pilot-note p { margin: 5px 0 0; font-size: 14px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.microcopy { margin: 12px 0 0; color: var(--muted); font-size: 12px; }
.store-links { display: flex; gap: 12px; margin-top: 22px; flex-wrap: wrap; }
.store-links a { display: flex; align-items: center;
  gap: 20px;
}
.store-links img {
  background-color: #fff;
  height: 56px;
}
.store-links small { display: block; color: #475467; font-size: 11px; font-weight: 800; }
.store-mark { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; color: #fff; font-weight: 900; }
.store-mark.chrome { background: linear-gradient(135deg,#fbbc04,#ea4335,#34a853,#4285f4); }
.store-mark.edge { background: linear-gradient(135deg,#0aa7e8,#0fc18b); }
.hero-visual { position: relative; }
.hero-visual::before { content: ""; position: absolute; inset: 8% -7% -8% 8%; background: linear-gradient(145deg, #ffe8e3, #e8f5ff); border-radius: 42% 58% 56% 44% / 42% 38% 62% 58%; filter: blur(1px); opacity: .75; }
.hero-visual img { position: relative; width: 100%; border-radius: 28px; box-shadow: var(--shadow); border: 1px solid rgba(208,215,226,.75); }

.about-section { background: #fff; }
.about-section h2, .section-heading h2 { margin-bottom: 16px; font-size: clamp(30px, 4vw, 46px); }
.section-lead { margin: 0 auto; color: #475467; font-size: 18px; }

.feature-cards-section { background: linear-gradient(180deg,#fff,#fff9f7); }
.section-heading { margin-bottom: 42px; }
.section-heading p:last-child { margin: 0; color: var(--muted); }
.feature-cards { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.feature-card { padding: 28px 24px; border: 1px solid var(--line); border-radius: 22px; background: rgba(255,255,255,.94); box-shadow: 0 12px 30px rgba(37,55,86,.05); }
.feature-icon { width: 52px; height: 52px; display: grid; place-items: center; border-radius: 16px; margin-bottom: 18px; background: var(--coral-soft); color: var(--coral); font-weight: 900; font-size: 23px; }
.feature-card h3 { margin-bottom: 10px; font-size: 20px; }
.feature-card p { margin: 0; color: #566176; font-size: 14px; }

.showcase-section { background: #fff; }
.alt-bg { background: #f7fbff; }
.showcase-row { display: grid; grid-template-columns: 1.12fr .88fr; gap: 60px; align-items: center; }
.showcase-row.reverse { grid-template-columns: .88fr 1.12fr; }
.showcase-row.reverse .showcase-media { order: 2; }
.showcase-media img { width: 100%; border-radius: 24px; box-shadow: var(--shadow); border: 1px solid var(--line); }
.showcase-copy h2 { font-size: clamp(30px,4vw,46px); margin-bottom: 20px; }
.showcase-copy p { color: #475467; font-size: 16px; }
.check-list { list-style: none; padding: 0; margin: 24px 0 0; }
.check-list li { position: relative; padding-left: 28px; margin: 10px 0; color: #344054; font-weight: 700; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--coral); font-weight: 900; }

.pilot-section { background: linear-gradient(135deg,#f5fbff,#fff5f3); }
.pilot-panel { display: grid; grid-template-columns: 1.25fr .75fr; gap: 50px; padding: 48px; border-radius: 30px; background: rgba(255,255,255,.86); border: 1px solid rgba(255,255,255,.9); box-shadow: var(--shadow); }
.pilot-panel h2 { font-size: clamp(30px,4vw,44px); }
.pilot-panel p { color: #475467; }
.pilot-points { display: grid; gap: 14px; align-content: center; }
.pilot-points div { display: grid; grid-template-columns: 54px 1fr; align-items: center; gap: 12px; padding: 16px; border-radius: 18px; background: #fff; border: 1px solid var(--line); }
.pilot-points strong { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--coral); }
.pilot-points span { font-weight: 800; color: var(--navy); }

.audience-section { background: #fff; }
.audience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.audience-card { padding: 34px; border-radius: 24px; border: 1px solid var(--line); background: #fff; box-shadow: 0 12px 30px rgba(37,55,86,.05); }
.audience-card:first-child { background: linear-gradient(180deg,#fff,#f7fbff); }
.audience-card:last-child { background: linear-gradient(180deg,#fff,#fff7f5); }
.audience-label { color: var(--coral); font-size: 11px; letter-spacing: .12em; font-weight: 900; }
.audience-card h3 { margin: 8px 0 14px; font-size: 25px; }
.audience-card p { color: #475467; }
.audience-note { font-weight: 800; color: var(--navy) !important; }
.cta-block { margin-top: 38px; }
.cta-block p { color: var(--muted); font-size: 12px; }

.steps-section { background: #fff9f7; }
.steps { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.steps article { position: relative; padding: 30px 26px; border-radius: 22px; background: #fff; border: 1px solid var(--line); }
.steps article > span { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 50%; margin-bottom: 18px; color: #fff; background: var(--coral); font-weight: 900; }
.steps h3 { margin-bottom: 8px; font-size: 20px; }
.steps p { margin: 0; color: #667085; font-size: 14px; }

.faq-section { background: #fff; }
.faq-list { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; list-style: none; padding: 22px 4px; font-weight: 800; color: var(--navy); }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; float: right; color: var(--coral); font-size: 24px; line-height: 1; }
details[open] summary::after { content: "−"; }
details p { margin: -6px 0 24px; color: #667085; }

.final-cta { background: linear-gradient(135deg,#fff3f1,#f3f9ff); }
.final-cta-inner { display: flex; justify-content: space-between; align-items: center; gap: 40px; }
.final-cta h2 { margin-bottom: 10px; font-size: clamp(30px,4vw,44px); }
.final-cta p:not(.eyebrow) { margin: 0; color: #475467; }

.site-footer { padding: 34px 0; background: #fff; border-top: 1px solid var(--line); }
.footer-inner { display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 34px; }
.footer-links { display: flex; gap: 22px; font-size: 12px; color: #667085; }
.site-footer small { color: #98a2b3; }

@media (max-width: 980px) {
  .global-nav { display: none; }
  .hero-grid, .showcase-row, .showcase-row.reverse, .pilot-panel { grid-template-columns: 1fr; }
  .showcase-row.reverse .showcase-media { order: 0; }
  .feature-cards { grid-template-columns: repeat(2,1fr); }
  .hero-copy { max-width: 760px; }
  .hero-visual { max-width: 820px; }
  .footer-inner { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .container, .narrow { width: min(calc(100% - 28px), var(--container)); }
  .section-pad { padding: 68px 0; }
  .header-inner { min-height: 66px; }
  .brand img { width: 122px; }
  .header-inner > .btn { display: none; }
  .hero h1 { font-size: 42px; }
  .lead { font-size: 17px; }
  .hero-actions .btn { width: 100%; }
  .feature-cards, .audience-grid, .steps { grid-template-columns: 1fr; }
  .showcase-row { gap: 30px; }
  .pilot-panel { padding: 28px 22px; }
  .final-cta-inner { flex-direction: column; align-items: flex-start; }
  .final-cta .btn { width: 100%; }
  .footer-links { flex-wrap: wrap; }
  .sp-only { display: inline; }
}