:root {
  --ink: #10213b;
  --muted: #5d6a7c;
  --blue: #2f6fed;
  --blue-dark: #174cb8;
  --sky: #dbeaff;
  --mist: #f3f7fc;
  --line: #dce4ef;
  --white: #ffffff;
  --max: 1120px;
  color-scheme: light;
  font-family: "Hiragino Sans", "Yu Gothic", "YuGothic", "Noto Sans JP", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

.site-header {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 40px), var(--max));
  min-height: 82px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  color: var(--white);
  background: var(--blue);
  border-radius: 50% 50% 50% 12%;
  font-size: 0.88rem;
  letter-spacing: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #34445d;
  font-size: 0.9rem;
  font-weight: 700;
}

.site-nav a {
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--blue);
}

.hero {
  position: relative;
  display: grid;
  min-height: calc(100svh - 82px);
  align-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 84% 28%, rgba(81, 149, 255, 0.2) 0 12%, transparent 32%),
    radial-gradient(circle at 72% 72%, rgba(55, 204, 194, 0.16) 0 9%, transparent 30%),
    linear-gradient(150deg, #fff 0%, #f6f9ff 50%, #eaf3ff 100%);
}

.hero::before,
.hero::after {
  position: absolute;
  content: "";
  border: 1px solid rgba(47, 111, 237, 0.14);
  border-radius: 50%;
}

.hero::before {
  top: 8%;
  right: -7%;
  width: min(43vw, 620px);
  aspect-ratio: 1;
}

.hero::after {
  right: 23%;
  bottom: -16%;
  width: min(28vw, 410px);
  aspect-ratio: 1;
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding: 80px 0 120px;
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 790px;
  margin: 0;
  font-size: clamp(3.15rem, 8vw, 7rem);
  font-weight: 800;
  letter-spacing: -0.055em;
  line-height: 1.04;
}

.hero h1 span {
  display: block;
  color: var(--blue);
}

.hero-copy {
  max-width: 600px;
  margin: 38px 0 0;
  color: #41516a;
  font-size: clamp(1rem, 1.7vw, 1.2rem);
  line-height: 2;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 0 25px;
  border: 1px solid var(--blue);
  border-radius: 999px;
  background: var(--blue);
  color: var(--white);
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease;
}

.button:hover,
.button:focus-visible {
  background: var(--blue-dark);
  transform: translateY(-2px);
}

.button.secondary {
  border-color: #b8c8de;
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink);
}

.button.secondary:hover,
.button.secondary:focus-visible {
  background: var(--white);
}

.section {
  padding: 110px 20px;
}

.section-inner {
  width: min(100%, var(--max));
  margin: 0 auto;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.2fr);
  gap: 60px;
  align-items: start;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.6rem);
  letter-spacing: -0.04em;
  line-height: 1.2;
}

.section-heading p {
  max-width: 620px;
  margin: 5px 0 0;
  color: var(--muted);
}

.service {
  background: var(--ink);
  color: var(--white);
}

.service .eyebrow {
  color: #8eb9ff;
}

.service .section-heading p {
  color: #c1ccdc;
}

.service-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 30px;
  align-items: end;
  margin-top: 64px;
  padding: clamp(28px, 5vw, 58px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(47, 111, 237, 0.24), rgba(255, 255, 255, 0.04));
}

.service-card h3 {
  margin: 0 0 14px;
  font-size: clamp(1.8rem, 4vw, 3rem);
  letter-spacing: -0.03em;
}

.service-card p {
  max-width: 660px;
  margin: 0;
  color: #cbd5e2;
}

.service-link {
  display: inline-flex;
  width: 58px;
  height: 58px;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--white);
  color: var(--blue);
  font-size: 1.45rem;
  text-decoration: none;
}

.site-footer {
  padding: 48px 20px;
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  width: min(100%, var(--max));
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 0.84rem;
}

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

.privacy-hero {
  padding: 86px 20px 74px;
  background: linear-gradient(145deg, #f5f9ff, #e8f2ff);
}

.privacy-hero-inner,
.policy {
  width: min(100%, 880px);
  margin: 0 auto;
}

.privacy-hero h1 {
  margin: 0;
  font-size: clamp(2.5rem, 6vw, 4.8rem);
  letter-spacing: -0.045em;
  line-height: 1.15;
}

.privacy-lead {
  max-width: 720px;
  margin: 26px 0 0;
  color: #465771;
  font-size: 1.05rem;
}

.privacy-updated {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.policy {
  padding: 76px 20px 120px;
}

.policy section {
  padding: 38px 0;
  border-bottom: 1px solid var(--line);
}

.policy section:first-child {
  padding-top: 0;
}

.policy h2 {
  margin: 0 0 18px;
  font-size: clamp(1.3rem, 2.8vw, 1.65rem);
  letter-spacing: -0.02em;
  line-height: 1.5;
}

.policy h3 {
  margin: 26px 0 10px;
  font-size: 1.05rem;
}

.policy p,
.policy li {
  color: #3f4e63;
}

.policy p {
  margin: 0 0 14px;
}

.policy ul,
.policy ol {
  margin: 12px 0 0;
  padding-left: 1.45em;
}

.policy li + li {
  margin-top: 7px;
}

.policy a {
  color: var(--blue-dark);
}

.policy-note {
  padding: 22px 24px;
  border-left: 3px solid var(--blue);
  background: var(--mist);
}

@media (max-width: 720px) {
  .site-header {
    min-height: 70px;
  }

  .site-nav {
    gap: 16px;
    font-size: 0.82rem;
  }

  .site-nav .optional {
    display: none;
  }

  .hero {
    min-height: calc(100svh - 70px);
  }

  .hero-inner {
    padding: 64px 0 90px;
  }

  .hero h1 {
    font-size: clamp(3rem, 16vw, 5rem);
  }

  .section {
    padding: 78px 20px;
  }

  .section-heading,
  .service-card {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .service-link {
    width: 52px;
    height: 52px;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .privacy-hero {
    padding: 66px 20px 58px;
  }

  .policy {
    padding-top: 54px;
  }
}

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

  .button {
    transition: none;
  }
}