:root {
  --bg: #fffaf7;
  --bg-soft: #f8eee9;
  --surface: #ffffff;
  --text: #2d2522;
  --muted: #6f5f58;
  --accent: #d57789;
  --accent-strong: #bd586e;
  --gold: #b89555;
  --line: #eadbd4;
  --shadow: 0 18px 45px rgba(93, 60, 48, 0.12);
  --radius: 8px;
  font-family: "Noto Sans JP", system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at top right, rgba(213, 119, 137, 0.12), transparent 32rem),
    linear-gradient(180deg, #fffaf7 0%, #ffffff 48%, #fff8f3 100%);
}

button,
a {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem clamp(1rem, 4vw, 4rem);
  background: rgba(255, 250, 247, 0.88);
  border-bottom: 1px solid rgba(234, 219, 212, 0.8);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--text);
  font-family: "Noto Serif JP", serif;
  font-size: 1.12rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark {
  width: 1.55rem;
  height: 1.55rem;
  border: 1px solid var(--gold);
  border-radius: 50%;
  background:
    linear-gradient(135deg, transparent 43%, var(--gold) 44%, var(--gold) 55%, transparent 56%),
    radial-gradient(circle, #fff 0 37%, #f3d8df 38% 100%);
}

.desktop-nav {
  display: none;
  align-items: center;
  gap: 1.5rem;
}

.desktop-nav a,
.secondary-link {
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 600;
  text-decoration: none;
}

.line-cta {
  min-height: 3rem;
  border: 0;
  border-radius: 999px;
  background: var(--accent-strong);
  color: #fff;
  cursor: pointer;
  font-weight: 700;
  line-height: 1.2;
  box-shadow: 0 12px 25px rgba(189, 88, 110, 0.22);
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.line-cta:hover,
.line-cta:focus-visible {
  background: #a94d61;
  box-shadow: 0 16px 30px rgba(189, 88, 110, 0.27);
  transform: translateY(-1px);
}

.line-cta:focus-visible,
.secondary-link:focus-visible,
.desktop-nav a:focus-visible {
  outline: 3px solid rgba(184, 149, 85, 0.36);
  outline-offset: 4px;
}

.header-cta {
  display: none;
  padding: 0 1.25rem;
  font-size: 0.92rem;
}

.section-band {
  padding: clamp(4rem, 8vw, 6.5rem) clamp(1rem, 4vw, 4rem);
}

.hero {
  display: grid;
  gap: 2.2rem;
  align-items: center;
  min-height: calc(100vh - 4.5rem);
  padding-top: clamp(2.5rem, 6vw, 5rem);
}

.hero-copy {
  max-width: 44rem;
}

.lead-text {
  margin: 0 0 1rem;
  color: var(--gold);
  font-size: 0.98rem;
  font-weight: 700;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: "Noto Serif JP", serif;
  letter-spacing: 0;
}

h1 {
  margin-bottom: 1.2rem;
  font-size: clamp(2.25rem, 7vw, 4.65rem);
  line-height: 1.15;
}

.hero-body {
  max-width: 37rem;
  margin-bottom: 1.7rem;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.12rem);
  line-height: 2;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: stretch;
  margin-bottom: 1.5rem;
}

.primary-cta {
  padding: 0 1.55rem;
  font-size: 1rem;
}

.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
}

.hero-notes {
  display: grid;
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  color: var(--muted);
  font-size: 0.92rem;
  list-style: none;
}

.hero-notes li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-notes li::before {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--gold);
  content: "";
}

.hero-visual {
  overflow: hidden;
  border: 1px solid rgba(234, 219, 212, 0.9);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.hero-visual img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.section-heading {
  display: grid;
  gap: 0.7rem;
  max-width: 44rem;
  margin: 0 auto 2rem;
  text-align: center;
}

.section-number {
  color: var(--gold);
  font-size: 0.82rem;
  font-weight: 700;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(1.55rem, 4.8vw, 3rem);
  line-height: 1.28;
}

.nowrap {
  white-space: nowrap;
}

h3 {
  margin-bottom: 0.65rem;
  font-size: 1.06rem;
  line-height: 1.45;
}

p {
  color: var(--muted);
  line-height: 1.85;
}

.trust {
  background: #fff;
}

.trust-grid,
.audience-list,
.flow-steps,
.benefit-layout,
.faq-list {
  display: grid;
  gap: 1rem;
  max-width: 68rem;
  margin: 0 auto;
}

.trust-grid article,
.audience-list div,
.flow-steps article,
.benefit-layout article {
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
}

.audience {
  background: linear-gradient(180deg, #fff 0%, var(--bg-soft) 100%);
}

.audience-list div {
  background: rgba(255, 250, 247, 0.85);
}

.flow {
  background: #fffaf7;
}

.flow-steps {
  counter-reset: flow;
}

.flow-steps article {
  position: relative;
  background: #fff;
}

.flow-steps span {
  display: inline-grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  margin-bottom: 1rem;
  border-radius: 50%;
  background: #f4dce3;
  color: var(--accent-strong);
  font-weight: 700;
}

.centered-cta {
  display: block;
  width: min(100%, 21rem);
  margin: 2rem auto 0;
}

.benefits {
  background: linear-gradient(135deg, #fff 0%, #fff6f1 100%);
}

.benefit-layout article {
  background: rgba(255, 255, 255, 0.82);
}

.faq {
  background: #fff;
}

details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fffaf7;
}

summary {
  cursor: pointer;
  padding: 1.15rem 1.25rem;
  color: var(--text);
  font-weight: 700;
}

details p {
  margin: 0;
  padding: 0 1.25rem 1.25rem;
}

.final-cta {
  text-align: center;
  background: linear-gradient(180deg, #fff7f1 0%, #fff 100%);
}

.final-cta h2,
.final-cta p {
  max-width: 42rem;
  margin-right: auto;
  margin-left: auto;
}

.final-cta .line-cta {
  width: min(100%, 20rem);
}

.site-footer {
  padding: 2.5rem clamp(1rem, 4vw, 4rem) 6rem;
  background: #352b27;
}

.site-footer p {
  max-width: 68rem;
  margin-right: auto;
  margin-left: auto;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.82rem;
}

.site-footer p:first-child {
  color: #fff;
  font-family: "Noto Serif JP", serif;
  font-size: 1.1rem;
  font-weight: 700;
}

.sticky-cta {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 30;
  padding: 0.75rem 1rem calc(0.75rem + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, 0.92);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.sticky-cta .line-cta {
  width: 100%;
}

@media (min-width: 720px) {
  .desktop-nav,
  .header-cta {
    display: inline-flex;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr) minmax(20rem, 0.82fr);
  }

  .hero-actions {
    flex-direction: row;
    align-items: center;
  }

  .primary-cta {
    min-width: 15rem;
  }

  .hero-notes {
    grid-template-columns: repeat(3, max-content);
  }

  .trust-grid,
  .flow-steps,
  .benefit-layout {
    grid-template-columns: repeat(3, 1fr);
  }

  .audience-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .sticky-cta {
    display: none;
  }

  .site-footer {
    padding-bottom: 2.5rem;
  }
}

@media (min-width: 1080px) {
  .hero {
    padding-right: clamp(4rem, 7vw, 7rem);
    padding-left: clamp(4rem, 7vw, 7rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}