:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --border: #e2e8f0;
  --text: #0f172a;
  --muted: #475569;
  --muted-2: #64748b;
  --primary: #0f172a;
  --primary-soft: #1e293b;
  --line: #22c55e;
  --shadow: 0 20px 60px -28px rgba(15, 23, 42, 0.28);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", "Noto Sans JP", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
img { max-width: 100%; }

.container {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
}

.section {
  padding: 88px 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.86);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
}

.brand-kicker,
.eyebrow {
  font-size: 11px;
  letter-spacing: 0.24em;
  font-weight: 800;
  color: var(--muted-2);
}

.brand-name {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.main-nav {
  display: flex;
  gap: 28px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
}
.main-nav a:hover,
.mobile-nav a:hover { color: var(--text); }

.nav-toggle {
  display: none;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  padding: 10px 14px;
  font-size: 12px;
  font-weight: 700;
}

.mobile-nav {
  display: none;
  border-top: 1px solid var(--border);
  background: #fff;
  padding: 12px 16px 16px;
}
.mobile-nav a {
  display: block;
  padding: 10px 0;
  color: var(--muted);
}
.mobile-nav.open { display: block; }

.hero {
  background:
    radial-gradient(circle at top right, rgba(15, 23, 42, 0.06), transparent 35%),
    radial-gradient(circle at left, rgba(59, 130, 246, 0.08), transparent 30%),
    #ffffff;
  border-bottom: 1px solid var(--border);
}

.hero-grid,
.search-grid,
.reviews-layout,
.contact-layout {
  display: grid;
  gap: 28px;
}

.hero-grid { grid-template-columns: 1.15fr 0.85fr; align-items: center; }
.hero-copy h1 {
  margin: 16px 0 18px;
  font-size: clamp(2.4rem, 4vw, 4.2rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.lead {
  font-size: 18px;
  color: var(--muted);
  max-width: 720px;
}

.pill {
  display: inline-flex;
  margin: 0;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(248, 250, 252, 0.95);
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}

.hero-actions,
.sns-actions,
.form-footer,
.choice-wrap,
.footer-grid,
.footer-links {
  display: flex;
  gap: 14px;
}
.hero-actions { margin-top: 30px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 18px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 700;
  transition: 0.2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover { background: #111c34; }
.btn-secondary { background: #fff; color: var(--text); border-color: var(--border); }
.btn-secondary:hover,
.btn-light:hover,
.btn-ghost:hover { border-color: #cbd5e1; }
.btn-light { background: #fff; color: var(--text); }
.btn-line { background: var(--line); color: #052e16; }
.btn-ghost { background: rgba(255,255,255,0.08); color: #fff; border-color: rgba(255,255,255,0.16); }

.card,
.hero-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.hero-panel,
.card {
  padding: 24px;
}

.hero-panel h2,
.section-head h2 {
  margin: 0;
  letter-spacing: -0.03em;
}
.section-head h2 {
  font-size: clamp(1.9rem, 2.4vw, 2.6rem);
}
.section-head p:last-child {
  margin: 12px 0 0;
  color: var(--muted);
  max-width: 760px;
}
.section-head.left p:last-child { max-width: 100%; }

.category-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.category-btn {
  text-align: left;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid var(--border);
  background: var(--surface-soft);
  color: var(--text);
  transition: 0.2s ease;
}
.category-btn strong { display: block; font-size: 15px; }
.category-btn span { display: block; margin-top: 6px; font-size: 12px; color: var(--muted-2); line-height: 1.5; }
.category-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.category-btn.active span { color: #cbd5e1; }

.search-grid { grid-template-columns: 1.1fr 0.9fr; margin-top: 34px; }
.search-card { display: grid; gap: 22px; }
.field-group { display: grid; gap: 8px; }
.field-group span,
.choice-title,
.suggest-title,
.footer-title,
.insight-label { font-weight: 700; }
.field-group input,
.field-group select,
.field-group textarea {
  width: 100%;
  min-height: 52px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
}
.field-group textarea { resize: vertical; min-height: 180px; }
.field-group input:focus,
.field-group select:focus,
.field-group textarea:focus {
  outline: 2px solid rgba(15, 23, 42, 0.1);
  border-color: #94a3b8;
}

.choice-wrap { flex-wrap: wrap; }
.choice-wrap > div { flex: 1 1 320px; }
.chips, .tokens {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.chip,
.token {
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}
.chip {
  background: #e2e8f0;
  color: #334155;
  border: none;
}
.chip.active {
  background: var(--primary);
  color: #fff;
}
.kana-grid {
  display: grid;
  grid-template-columns: repeat(10, minmax(0, 1fr));
  gap: 10px;
}
.kana-grid button {
  min-height: 48px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: #fff;
  font-weight: 700;
  color: var(--muted);
}
.kana-grid button.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.insight-card {
  background: var(--primary);
  color: #fff;
  display: grid;
  gap: 18px;
}
.insight-top {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: start;
}
.status-badge {
  border-radius: 999px;
  padding: 8px 12px;
  background: rgba(255,255,255,0.1);
  font-size: 12px;
  font-weight: 700;
  color: #dbeafe;
}
.insight-top h3 { margin: 6px 0 0; font-size: 2rem; }
.insight-desc { margin: 0; color: #cbd5e1; }
.token-box,
.suggest-box {
  border-radius: 22px;
  background: rgba(255,255,255,0.06);
  padding: 18px;
}
.token-box p,
.suggest-box p,
.suggest-box ul { margin: 0; }
.token-box p { color: #e2e8f0; font-size: 14px; font-weight: 700; }
.tokens { margin-top: 12px; }
.token {
  background: rgba(255,255,255,0.1);
  color: #fff;
}
.suggest-box ul {
  display: grid;
  gap: 10px;
  padding-left: 18px;
  margin-top: 12px;
  color: #dbeafe;
}

.compare-section {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: #fff;
}
.store-grid,
.feature-grid,
.review-list {
  display: grid;
  gap: 18px;
}
.store-grid {
  margin-top: 34px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.feature-grid {
  margin-top: 26px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.store-card,
.feature-card,
.review-card {
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  background: var(--surface-soft);
  padding: 22px;
}
.store-top {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.store-top p,
.store-top h3,
.feature-card h3,
.review-card h3 { margin: 0; }
.store-top p { font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase; font-weight: 800; color: var(--muted-2); }
.store-top h3 { margin-top: 6px; font-size: 24px; }
.badge {
  display: inline-flex;
  align-items: center;
  height: fit-content;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}
.store-card > p {
  color: var(--muted);
  margin: 16px 0 0;
}
.store-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}
.store-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 15px;
  font-size: 13px;
  font-weight: 700;
}
.store-actions a:first-child { background: var(--primary); color: #fff; }
.store-actions a:last-child { border: 1px solid var(--border); background: #fff; color: var(--text); }
.store-audience { margin-top: 16px; }

.feature-card {
  background: #fff;
  box-shadow: 0 10px 28px -24px rgba(15, 23, 42, 0.28);
}
.feature-tag {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: #e2e8f0;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}
.feature-card h3 { margin-top: 16px; font-size: 20px; line-height: 1.5; }
.feature-card p { color: var(--muted); margin: 12px 0 0; }
.feature-link {
  display: inline-block;
  margin-top: 18px;
  font-weight: 700;
}

.reviews-layout { grid-template-columns: 1fr 0.9fr; }
.review-list { margin-top: 26px; }
.review-card { background: #fff; box-shadow: 0 10px 28px -24px rgba(15, 23, 42, 0.28); }
.review-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
}
.stars { color: #f59e0b; font-size: 14px; letter-spacing: 0.08em; }
.review-card p { color: var(--muted); }
.review-meta {
  display: inline-flex;
  margin-top: 14px;
  padding: 9px 12px;
  border-radius: 999px;
  background: #e2e8f0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.sns-card {
  background: var(--primary);
  color: #fff;
  display: grid;
  gap: 18px;
}
.sns-card h3 { margin: 0; font-size: 28px; }
.sns-points {
  display: grid;
  gap: 12px;
}
.sns-points > div {
  border-radius: 22px;
  background: rgba(255,255,255,0.07);
  padding: 18px;
}
.sns-points p { margin: 6px 0 0; color: #cbd5e1; }
.sns-actions { flex-wrap: wrap; }

.contact-section {
  border-top: 1px solid var(--border);
  background: #fff;
}
.contact-layout { grid-template-columns: 0.88fr 1.12fr; }
.company-card { background: var(--surface-soft); box-shadow: none; }
.company-card p { margin: 0 0 10px; }
.company-note { color: var(--muted); }
.contact-form { display: grid; gap: 18px; background: var(--surface-soft); box-shadow: none; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.form-footer {
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}
.form-footer p { color: var(--muted); font-size: 12px; margin: 0; }
.hidden { display: none; }

.site-footer {
  background: #020617;
  color: #cbd5e1;
  border-top: 1px solid #0f172a;
}
.footer-grid {
  justify-content: space-between;
  align-items: start;
  padding: 40px 0;
}
.footer-copy { max-width: 700px; color: #94a3b8; }
.footer-links { gap: 40px; }
.footer-title { color: #fff; margin: 0 0 10px; }
.footer-links p { margin: 0 0 6px; }
.footer-eyebrow { color: #64748b; }

@media (max-width: 1080px) {
  .hero-grid,
  .search-grid,
  .reviews-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }
  .store-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .section { padding: 70px 0; }
  .main-nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .hero-copy h1 { font-size: 2.2rem; }
  .category-grid,
  .store-grid,
  .feature-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }
  .kana-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .container { width: min(calc(100% - 24px), var(--max)); }
  .hero-panel,
  .card,
  .store-card,
  .feature-card,
  .review-card { padding: 20px; }
  .footer-grid,
  .footer-links,
  .hero-actions,
  .sns-actions,
  .form-footer,
  .choice-wrap { flex-direction: column; }
}