:root {
  color-scheme: light;
  --navy: #0f172a;
  --navy-soft: #1e293b;
  --gold: #f0b429;
  --gold-dark: #b7791f;
  --gold-pale: #fff8df;
  --ink: #172033;
  --muted: #5f6b7a;
  --line: #e2e8f0;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --success: #047857;
  --shadow: 0 18px 45px rgba(15, 23, 42, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a {
  color: #8a5b00;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: #5f3e00;
}

img {
  display: block;
  max-width: 100%;
}

.skip-link {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 1000;
  padding: 0.6rem 0.9rem;
  color: var(--navy);
  background: #fff;
  border-radius: 0.5rem;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(1120px, calc(100% - 3rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  color: #fff;
  background: rgba(15, 23, 42, 0.96);
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  backdrop-filter: blur(12px);
}

.header-inner {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: #fff;
  font-size: 1.08rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand img {
  width: 30px;
  height: 30px;
}

.brand:hover {
  color: #fff;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.header-nav a {
  color: #dbe4f0;
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.header-nav a:hover {
  color: #fff;
}

.header-nav .header-cta {
  padding: 0.52rem 0.9rem;
  color: var(--navy);
  background: var(--gold);
  border-radius: 0.65rem;
}

.header-nav .header-cta:hover {
  color: var(--navy);
  background: #f7c957;
}

.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at 78% 15%, rgba(240, 180, 41, 0.2), transparent 30rem),
    linear-gradient(145deg, #0f172a 0%, #16233d 100%);
  padding: 2rem 0 5.5rem;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin: 0 0 2.8rem;
  color: #aebbd0;
  font-size: 0.82rem;
}

.breadcrumb a {
  color: #dce5f2;
  text-decoration: none;
}

.breadcrumb a:hover {
  color: #fff;
}

.breadcrumb [aria-current="page"] {
  color: #fff;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.75fr);
  gap: 3rem;
  align-items: center;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: #a36a00;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: var(--gold);
}

.hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(2.05rem, 4.8vw, 3.8rem);
  line-height: 1.2;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.hero-lead {
  max-width: 760px;
  margin: 1.35rem 0 0;
  color: #cbd5e1;
  font-size: clamp(1rem, 1.7vw, 1.14rem);
}

.summary-box {
  max-width: 780px;
  margin-top: 1.5rem;
  padding: 1.15rem 1.25rem;
  color: var(--navy);
  background: #fff;
  border-left: 5px solid var(--gold);
  border-radius: 0.75rem;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.18);
}

.summary-box strong {
  display: block;
  margin-bottom: 0.2rem;
  color: #8a5b00;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

.summary-box p {
  margin: 0;
  font-weight: 650;
  line-height: 1.7;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.5rem;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 0.72rem;
  font-weight: 800;
  line-height: 1.3;
  text-align: center;
  text-decoration: none;
}

.button-primary {
  color: var(--navy);
  background: var(--gold);
  box-shadow: 0 9px 24px rgba(240, 180, 41, 0.24);
}

.button-primary:hover {
  color: var(--navy);
  background: #f7c957;
}

.button-secondary {
  color: #fff;
  background: transparent;
  border-color: rgba(255, 255, 255, 0.34);
}

.button-secondary:hover {
  color: #fff;
  border-color: #fff;
}

.hero-panel {
  padding: 1.55rem;
  color: #e9eef6;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 1rem;
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.2);
}

.hero-panel h2 {
  margin: 0 0 0.9rem;
  color: #fff;
  font-size: 1.05rem;
}

.hero-panel ol,
.hero-panel ul {
  margin: 0;
  padding-left: 1.25rem;
}

.hero-panel li + li {
  margin-top: 0.55rem;
}

.hero-note {
  margin: 0.85rem 0 0;
  color: #aebbd0;
  font-size: 0.82rem;
}

main {
  background: #fff;
}

#main,
#pricing,
#features {
  scroll-margin-top: 84px;
}

.section {
  padding: 5rem 0;
}

.section-tint {
  background: var(--surface-soft);
}

.section-header {
  max-width: 760px;
  margin-bottom: 2.1rem;
}

.section-title {
  margin: 0;
  color: var(--navy);
  font-size: clamp(1.65rem, 3vw, 2.35rem);
  line-height: 1.35;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.section-lead {
  margin: 0.85rem 0 0;
  color: var(--muted);
}

.two-column,
.card-grid,
.related-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.content-card,
.related-card {
  padding: 1.6rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 1rem;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.045);
}

.content-card h3,
.related-card h3 {
  margin: 0 0 0.55rem;
  color: var(--navy);
  font-size: 1.12rem;
  line-height: 1.45;
}

.content-card p,
.related-card p {
  margin: 0;
  color: var(--muted);
}

.content-card.problem {
  border-top: 4px solid #cbd5e1;
}

.content-card.solution {
  border-top: 4px solid var(--gold);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  counter-reset: steps;
  list-style: none;
}

.steps li {
  position: relative;
  padding: 1.5rem 1.35rem 1.35rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  counter-increment: steps;
}

.steps li::before {
  display: inline-grid;
  width: 2rem;
  height: 2rem;
  margin-bottom: 0.8rem;
  place-items: center;
  color: var(--navy);
  background: var(--gold);
  border-radius: 999px;
  content: counter(steps);
  font-weight: 900;
}

.steps strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--navy);
}

.steps span {
  color: var(--muted);
}

.check-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem 1.2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 1rem 1rem 1rem 2.8rem;
  background: var(--gold-pale);
  border: 1px solid #f6df9d;
  border-radius: 0.75rem;
}

.check-list li::before {
  position: absolute;
  top: 1.05rem;
  left: 1rem;
  display: grid;
  width: 1.2rem;
  height: 1.2rem;
  place-items: center;
  color: #fff;
  background: var(--success);
  border-radius: 999px;
  content: "✓";
  font-size: 0.75rem;
  font-weight: 900;
}

.notice {
  margin-top: 1.5rem;
  padding: 1rem 1.2rem;
  color: #475569;
  background: #f1f5f9;
  border-left: 4px solid #94a3b8;
  border-radius: 0.5rem;
}

.notice strong {
  color: var(--navy);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.price-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  padding: 1.5rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 1rem;
}

.price-card.featured {
  border: 2px solid var(--gold);
  box-shadow: var(--shadow);
}

.plan-name {
  margin: 0;
  color: var(--navy);
  font-size: 1.08rem;
}

.plan-price {
  margin: 0.45rem 0 0.85rem;
  color: var(--navy);
  font-size: 1.7rem;
  font-weight: 900;
  letter-spacing: -0.035em;
}

.plan-price small {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 650;
  letter-spacing: 0;
}

.price-card p {
  margin: 0 0 1.15rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.price-card .button {
  width: 100%;
  margin-top: auto;
}

.price-card:not(.featured) .button {
  color: var(--navy);
  background: #fff;
  border-color: #94a3b8;
}

.faq-list {
  display: grid;
  gap: 0.75rem;
}

.faq-list details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
}

.faq-list summary {
  padding: 1.1rem 1.3rem;
  color: var(--navy);
  cursor: pointer;
  font-weight: 800;
}

.faq-list details p {
  margin: 0;
  padding: 0 1.3rem 1.2rem;
  color: var(--muted);
}

.related-card {
  display: flex;
  flex-direction: column;
}

.related-card a {
  margin-top: auto;
  padding-top: 0.8rem;
  font-weight: 800;
}

.text-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.25rem;
  margin-top: 1.4rem;
}

.feature-links-title {
  margin: 2rem 0 0;
  color: var(--navy);
  font-size: 1.15rem;
}

.text-links a {
  font-weight: 750;
}

.final-cta {
  padding: 4.6rem 0;
  color: #fff;
  background: var(--navy);
  text-align: center;
}

.final-cta h2 {
  margin: 0;
  font-size: clamp(1.75rem, 3.4vw, 2.55rem);
  line-height: 1.35;
}

.final-cta p {
  margin: 0.8rem auto 0;
  color: #cbd5e1;
}

.final-cta .cta-actions {
  justify-content: center;
}

.site-footer {
  color: #94a3b8;
  background: #080d18;
  border-top: 1px solid #1e293b;
}

.footer-inner {
  min-height: 108px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.7rem 1.1rem;
}

.footer-links a {
  color: #cbd5e1;
}

:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 3px;
  box-shadow: 0 0 0 6px var(--navy);
}

@media (max-width: 860px) {
  .hero-grid,
  .two-column,
  .card-grid,
  .related-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 2rem;
  }

  .steps,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .price-card {
    min-height: auto;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 2rem, 1120px);
  }

  .header-nav > a:first-child {
    display: none;
  }

  .hero {
    padding: 1.35rem 0 4rem;
  }

  .breadcrumb {
    margin-bottom: 2rem;
  }

  .section {
    padding: 3.8rem 0;
  }

  .check-list {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 1.6rem;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}


/* SEO解説図 */
.lp-figure{margin:28px auto 8px;max-width:920px;padding:0 20px}
.lp-figure img{width:100%;height:auto;border:1px solid #E5E7EB;border-radius:12px;background:#fff}
.lp-figure figcaption{font-size:13px;color:#6B7280;margin-top:8px;text-align:center;line-height:1.6}
@media (max-width:640px){.lp-figure{margin:18px auto 4px}}