:root {
  --navy: #061b36;
  --navy-2: #0d2a4d;
  --blue: #1267d6;
  --blue-2: #2f8bea;
  --sky: #eaf5ff;
  --sky-2: #f6fbff;
  --text: #172033;
  --muted: #5c6b80;
  --line: #dce8f5;
  --white: #ffffff;
  --shadow: 0 20px 60px rgba(6, 27, 54, 0.10);
  --shadow-strong: 0 24px 70px rgba(6, 27, 54, 0.14);
  --radius: 18px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.8;
  letter-spacing: 0;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: min(100% - 40px, var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(220, 232, 245, 0.9);
  backdrop-filter: blur(16px);
}

.header-inner {
  width: min(100% - 40px, var(--container));
  min-height: 76px;
  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(--navy);
  font-size: 18px;
  font-weight: 800;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--line);
  object-fit: cover;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.site-nav a {
  transition: color 0.2s ease;
}

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

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  padding: 9px;
}

.menu-button span:not(.sr-only) {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--navy);
  border-radius: 999px;
}

.hero {
  padding: 54px 0 104px;
  background:
    radial-gradient(circle at 12% 18%, rgba(47, 139, 234, 0.16), transparent 34%),
    radial-gradient(circle at 88% 0%, rgba(18, 103, 214, 0.10), transparent 28%),
    linear-gradient(180deg, #f7fbff 0%, #ffffff 76%);
  overflow: hidden;
}

.hero-image-wrap {
  width: min(100% - 72px, 1180px);
  margin: 0 auto;
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow-strong);
  overflow: hidden;
  background: var(--white);
}

.hero-image {
  width: 100%;
  aspect-ratio: 3 / 1;
  object-fit: cover;
}

.hero-content {
  padding-top: 70px;
}

.eyebrow,
.section-label {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
}

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

h1 {
  max-width: 780px;
  margin-bottom: 18px;
  color: var(--navy);
  font-size: clamp(38px, 7vw, 72px);
  line-height: 1.1;
}

h2 {
  margin-bottom: 14px;
  color: var(--navy);
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.28;
}

h3 {
  color: var(--navy);
  font-size: 21px;
  line-height: 1.45;
}

.hero-lead {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.95;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 24px;
  border: 1px solid var(--blue);
  border-radius: 999px;
  background: var(--blue);
  color: var(--white);
  font-weight: 800;
  line-height: 1.2;
  box-shadow: 0 14px 28px rgba(18, 103, 214, 0.22);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button-primary {
  min-height: 56px;
  padding: 0 30px;
  background: linear-gradient(135deg, var(--blue), var(--blue-2));
  border-color: transparent;
  box-shadow: 0 18px 38px rgba(18, 103, 214, 0.30);
}

.button:hover {
  transform: translateY(-2px);
  background: #0759c2;
  box-shadow: 0 18px 32px rgba(18, 103, 214, 0.26);
}

.button-outline {
  background: var(--white);
  color: var(--blue);
  box-shadow: none;
}

.button-outline:hover {
  background: var(--sky);
}

.section {
  padding: 100px 0;
}

.section-soft {
  background: var(--sky-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.two-column {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 72px;
  align-items: start;
}

.text-block {
  color: var(--muted);
  font-size: 17px;
}

.text-block p:last-child {
  margin-bottom: 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading > p:not(.section-label) {
  color: var(--muted);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.card {
  position: relative;
  min-height: 100%;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 14px 40px rgba(6, 27, 54, 0.06);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--blue-2));
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(18, 103, 214, 0.24);
  box-shadow: 0 22px 54px rgba(6, 27, 54, 0.10);
}

.service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  margin-bottom: 22px;
  border-radius: 50%;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(255, 255, 255, 0.35)),
    var(--sky);
  color: var(--blue);
  font-size: 20px;
  font-weight: 900;
  box-shadow: inset 0 0 0 1px rgba(18, 103, 214, 0.14), 0 12px 24px rgba(18, 103, 214, 0.10);
}

.card-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: auto;
  height: auto;
  margin-bottom: 12px;
  border-radius: 999px;
  background: transparent;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}

.card p {
  margin-bottom: 0;
  color: var(--muted);
}

.profile {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
  gap: 42px;
  align-items: center;
}

.profile-card {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: linear-gradient(180deg, var(--white), var(--sky-2));
  box-shadow: var(--shadow);
}

.profile-card img {
  width: 132px;
  height: 132px;
  margin-bottom: 24px;
  border-radius: 50%;
  border: 1px solid var(--line);
  object-fit: cover;
}

.profile-title {
  margin-bottom: 0;
  color: var(--blue);
  font-weight: 800;
}

.profile-list {
  margin: 0;
  padding: 0;
}

.profile-list div {
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.profile-list div:first-child {
  border-top: 1px solid var(--line);
}

.profile-list dt {
  margin-bottom: 6px;
  color: var(--navy);
  font-weight: 900;
}

.profile-list dd {
  margin: 0;
  color: var(--muted);
}

.contact-section {
  padding-bottom: 100px;
}

.contact-box {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 40px;
  align-items: center;
  padding: 42px;
  border-radius: 28px;
  background: var(--navy);
  color: var(--white);
  box-shadow: var(--shadow);
}

.contact-box h2 {
  color: var(--white);
}

.contact-box p:not(.section-label) {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.78);
}

.contact-links {
  display: grid;
  gap: 12px;
}

.contact-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 54px;
  padding: 0 18px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.08);
  font-weight: 800;
}

.contact-links a::after {
  content: "→";
  color: var(--blue-2);
}

.site-footer {
  padding: 28px 0;
  background: #031225;
  color: rgba(255, 255, 255, 0.76);
  font-size: 14px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

@media (max-width: 860px) {
  .container,
  .header-inner,
  .hero-image-wrap {
    width: min(100% - 28px, var(--container));
  }

  .header-inner {
    min-height: 68px;
  }

  .menu-button {
    display: block;
  }

  .site-nav {
    position: absolute;
    left: 14px;
    right: 14px;
    top: 76px;
    display: none;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--white);
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: grid;
    gap: 4px;
  }

  .site-nav a {
    padding: 12px;
    border-radius: 12px;
  }

  .site-nav a:hover {
    background: var(--sky);
  }

  .hero {
    padding: 34px 0 76px;
  }

  .hero-image-wrap {
    width: min(100% - 28px, 820px);
    border-radius: 20px;
  }

  .hero-image {
    aspect-ratio: 16 / 9;
    object-position: center;
  }

  .hero-content {
    padding-top: 52px;
  }

  .section {
    padding: 76px 0;
  }

  .two-column,
  .card-grid,
  .profile,
  .contact-box {
    grid-template-columns: 1fr;
  }

  .two-column {
    gap: 24px;
  }

  .contact-box {
    padding: 30px;
  }
}

@media (max-width: 520px) {
  .brand {
    font-size: 16px;
  }

  .brand img {
    width: 36px;
    height: 36px;
  }

  h1 {
    font-size: 38px;
    line-height: 1.18;
  }

  h2 {
    line-height: 1.34;
  }

  .hero-lead,
  .text-block,
  .section-heading > p:not(.section-label),
  .card p,
  .profile-list dd,
  .contact-box p:not(.section-label) {
    line-height: 1.95;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .card,
  .profile-card {
    padding: 24px;
  }

  .contact-box {
    padding: 24px;
    border-radius: 22px;
  }
}