:root {
  color-scheme: light dark;
  --bg: #f7f7fc;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-solid: #ffffff;
  --text: #16182b;
  --muted: #65677b;
  --line: rgba(34, 35, 64, 0.1);
  --accent: #716de8;
  --accent-deep: #514ec7;
  --accent-soft: #eeedff;
  --success: #3b966d;
  --shadow: 0 24px 70px rgba(57, 55, 128, 0.14);
  --radius-lg: 32px;
  --radius-md: 22px;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 5%, rgba(113, 109, 232, 0.13), transparent 28rem),
    radial-gradient(circle at 92% 20%, rgba(186, 183, 255, 0.16), transparent 32rem),
    var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.24em;
}

a:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(113, 109, 232, 0.5);
  outline-offset: 4px;
  border-radius: 6px;
}

.site-header {
  width: min(calc(100% - 40px), var(--max-width));
  min-height: 88px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-size: 1.15rem;
  font-weight: 760;
  text-decoration: none;
  letter-spacing: 0.03em;
}

.brand img,
.footer-brand img {
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(71, 67, 167, 0.18);
}

nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

nav a,
.footer-links a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
}

nav a:hover,
.footer-links a:hover,
.text-link:hover {
  color: var(--accent-deep);
}

.hero {
  width: min(calc(100% - 40px), var(--max-width));
  min-height: 690px;
  margin: 0 auto;
  padding: 68px 0 82px;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, 0.85fr);
  align-items: center;
  gap: clamp(36px, 7vw, 92px);
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--accent-deep);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
p {
  overflow-wrap: anywhere;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.7rem, 6.5vw, 5rem);
  line-height: 1.14;
  letter-spacing: -0.05em;
}

.lead {
  max-width: 720px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: clamp(1.03rem, 2vw, 1.2rem);
  line-height: 1.95;
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 22px;
}

.store-status,
.email-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 15px;
  background: var(--text);
  color: var(--surface-solid);
  font-size: 0.92rem;
  font-weight: 750;
  letter-spacing: 0.02em;
}

.text-link {
  color: var(--accent-deep);
  font-weight: 720;
  text-decoration: none;
}

.hero-card {
  min-height: 510px;
  padding: 52px 34px 34px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 54px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(238, 237, 255, 0.78)),
    var(--surface-solid);
  box-shadow: var(--shadow);
  transform: rotate(1.5deg);
}

.hero-icon {
  margin: 0 auto 34px;
  border-radius: 28px;
  box-shadow: 0 22px 45px rgba(67, 63, 158, 0.25);
}

.summary-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 14px 34px rgba(44, 42, 105, 0.09);
}

.summary-label {
  display: block;
  margin-bottom: 8px;
  color: var(--accent-deep);
  font-size: 0.8rem;
  font-weight: 760;
}

.summary-card strong {
  font-size: 1.35rem;
  line-height: 1.5;
}

.connection-row {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.connection-row span {
  padding: 10px 6px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.6);
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 680;
  text-align: center;
}

.section {
  width: min(calc(100% - 40px), 820px);
  margin: 0 auto;
  padding: 112px 0;
  text-align: center;
}

.section h2,
.trust-section h2,
.price-section h2,
.contact-panel h2 {
  margin: 0;
  font-size: clamp(2rem, 4.8vw, 3.6rem);
  line-height: 1.3;
  letter-spacing: -0.04em;
}

.section > p:last-child {
  margin: 28px auto 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.feature-grid {
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto 120px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.feature-card {
  min-height: 330px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: 0 18px 48px rgba(43, 41, 103, 0.07);
}

.feature-number {
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 820;
  letter-spacing: 0.14em;
}

.feature-card h2 {
  margin: 58px 0 12px;
  font-size: 1.42rem;
  line-height: 1.35;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.trust-section,
.price-section {
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto 120px;
  padding: clamp(34px, 6vw, 68px);
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 1.1fr);
  gap: clamp(42px, 7vw, 90px);
  border-radius: 42px;
  background: var(--text);
  color: var(--surface-solid);
}

.trust-section .section-kicker,
.price-section .section-kicker {
  color: #aaa7ff;
}

.trust-section h2,
.price-section h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

.trust-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.trust-list li {
  padding: 18px 0;
  display: grid;
  grid-template-columns: minmax(120px, 0.6fr) minmax(0, 1.4fr);
  gap: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.13);
}

.trust-list li:last-child {
  border-bottom: 0;
}

.trust-list span {
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.9rem;
}

.price-section {
  align-items: center;
  background: linear-gradient(140deg, #625ed9, #817df0);
}

.price-section .section-kicker {
  color: rgba(255, 255, 255, 0.76);
}

.price-card {
  padding: 34px;
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.13);
  backdrop-filter: blur(14px);
}

.price-card strong {
  font-size: clamp(3rem, 7vw, 5rem);
  line-height: 1.1;
  letter-spacing: -0.05em;
}

.price-card span {
  margin-top: 12px;
  font-weight: 760;
}

.price-card small {
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.74);
}

.document-page {
  width: min(calc(100% - 40px), 900px);
  margin: 0 auto;
  padding: 72px 0 110px;
}

.document-header {
  margin-bottom: 64px;
  text-align: center;
}

.document-header h1 {
  margin: 0;
  font-size: clamp(2.5rem, 7vw, 4.8rem);
  line-height: 1.2;
  letter-spacing: -0.05em;
}

.document-header > p:not(.eyebrow, .effective-date) {
  max-width: 720px;
  margin: 24px auto 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.effective-date {
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.86rem;
}

.contact-panel {
  margin: 0 0 70px;
  padding: clamp(28px, 5vw, 52px);
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(240px, 0.6fr);
  align-items: center;
  gap: 34px;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--accent-soft), var(--surface-solid));
  box-shadow: var(--shadow);
}

.contact-panel h2 {
  font-size: clamp(1.65rem, 3vw, 2.25rem);
}

.contact-panel p:last-child {
  margin: 14px 0 0;
  color: var(--muted);
}

.email-button {
  background: var(--accent-deep);
  text-decoration: none;
  word-break: break-all;
}

.email-button:hover {
  background: #4542b6;
}

.document-section,
.faq {
  margin: 0 0 24px;
  padding: clamp(26px, 5vw, 44px);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.document-section h2,
.faq > h2 {
  margin: 0 0 18px;
  font-size: clamp(1.25rem, 3vw, 1.65rem);
  line-height: 1.45;
}

.document-section p,
.document-section li,
.faq p {
  color: var(--muted);
}

.document-section p:last-child,
.document-section ul:last-child {
  margin-bottom: 0;
}

.document-section li + li {
  margin-top: 6px;
}

.notice {
  padding: 16px 18px;
  border-left: 4px solid var(--accent);
  border-radius: 4px 12px 12px 4px;
  background: var(--accent-soft);
  color: var(--text) !important;
}

.faq {
  margin-bottom: 70px;
}

.faq details {
  border-top: 1px solid var(--line);
}

.faq details:last-child {
  border-bottom: 1px solid var(--line);
}

.faq summary {
  padding: 22px 30px 22px 0;
  position: relative;
  cursor: pointer;
  font-weight: 720;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  color: var(--accent-deep);
  font-size: 1.4rem;
  line-height: 1;
}

.faq details[open] summary::after {
  content: "−";
}

.faq details p {
  margin: -6px 0 22px;
}

.compact {
  margin-top: 70px;
  margin-bottom: 0;
}

footer {
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
  padding: 34px 0 48px;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 34px;
  border-top: 1px solid var(--line);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
}

.copyright {
  color: var(--muted);
  font-size: 0.82rem;
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 50px;
  }

  .hero-card {
    width: min(100%, 520px);
    margin: 0 auto;
    transform: none;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    min-height: 0;
  }

  .feature-card h2 {
    margin-top: 34px;
  }

  .trust-section,
  .price-section,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  footer {
    grid-template-columns: 1fr;
    gap: 18px;
  }
}

@media (max-width: 620px) {
  .site-header {
    min-height: 74px;
  }

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

  nav {
    gap: 16px;
  }

  nav a {
    font-size: 0.8rem;
  }

  .hero {
    min-height: 0;
    padding: 56px 0 78px;
  }

  .hero h1 br,
  .section h2 br,
  .price-section h2 br {
    display: none;
  }

  .hero-card {
    min-height: 430px;
    padding: 38px 22px 24px;
    border-radius: 38px;
  }

  .hero-icon {
    width: 104px;
    height: 104px;
  }

  .connection-row {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 86px 0;
  }

  .feature-grid,
  .trust-section,
  .price-section {
    margin-bottom: 76px;
  }

  .trust-section,
  .price-section {
    padding: 32px 24px;
    border-radius: 30px;
  }

  .trust-list li {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .document-page {
    padding-top: 52px;
  }

  .document-header {
    margin-bottom: 48px;
  }

  .contact-panel {
    padding: 28px 22px;
  }

  .document-section,
  .faq {
    padding: 26px 22px;
  }
}

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

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11121b;
    --surface: rgba(29, 30, 44, 0.88);
    --surface-solid: #1d1e2c;
    --text: #f3f2ff;
    --muted: #b3b3c4;
    --line: rgba(255, 255, 255, 0.1);
    --accent: #9692ff;
    --accent-deep: #aaa7ff;
    --accent-soft: #292744;
    --shadow: 0 24px 70px rgba(0, 0, 0, 0.3);
  }

  .hero-card {
    border-color: rgba(255, 255, 255, 0.12);
    background: linear-gradient(145deg, rgba(42, 41, 66, 0.94), rgba(29, 30, 44, 0.9));
  }

  .summary-card,
  .connection-row span {
    background: rgba(17, 18, 27, 0.7);
  }

  .store-status {
    background: #efefff;
    color: #171829;
  }

  .contact-panel {
    background: linear-gradient(145deg, #292744, #1d1e2c);
  }
}