:root {
  --navy: #1d3f67;
  --navy-dark: #183656;
  --blue: #2c547f;
  --light-blue: #f4f8fc;
  --text: #22364c;
  --muted: #617387;
  --line: #d7e1ec;
  --white: #ffffff;
  --bg: #f7f9fc;
  --shadow: 0 14px 36px rgba(24, 54, 86, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.85;
}
img { max-width: 100%; }
a { color: var(--blue); text-decoration: none; }
a:hover { opacity: 0.88; }
.container { width: min(1180px, calc(100% - 56px)); margin: 0 auto; }
.narrow { width: min(820px, calc(100% - 56px)); margin: 0 auto; }
.section { padding: 92px 0; }
.section.alt { background: var(--bg); }
.section-head { margin-bottom: 38px; }
.section-head h2 { margin: 10px 0 14px; font-size: clamp(1.8rem, 3vw, 2.35rem); line-height: 1.38; letter-spacing: 0.01em; }
.section-head p { color: var(--muted); margin: 0; }
.eyebrow {
  margin: 0;
  color: var(--blue);
  letter-spacing: 0.06em;
  font-size: 0.84rem;
  font-weight: 700;
}
.lead { font-size: 1.06rem; color: var(--muted); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(215, 225, 236, 0.65);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 80px;
  gap: 20px;
}
.logo {
  color: var(--navy-dark);
  font-weight: 800;
  font-size: 1.16rem;
  letter-spacing: 0.02em;
}
.site-nav {
  display: flex;
  gap: 24px;
  align-items: center;
}
.site-nav a {
  color: var(--text);
  font-size: 0.94rem;
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--navy-dark);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 24px;
  border-radius: 999px;
  background: var(--navy-dark);
  color: var(--white) !important;
  font-weight: 700;
  border: 1px solid var(--navy-dark);
  transition: 0.2s ease;
}
.btn:hover { transform: translateY(-1px); opacity: 1; }
.btn-secondary {
  background: var(--white);
  color: var(--navy-dark) !important;
  border-color: var(--navy);
}
.btn-sm { padding: 11px 18px; font-size: 0.92rem; }

.hero {
  padding: 96px 0 56px;
  background: linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.28fr) minmax(320px, 0.92fr);
  gap: 54px;
  align-items: center;
}
.hero-copy { padding-top: 6px; }
.hero h1 {
  margin: 14px 0 20px;
  color: var(--navy-dark);
  font-size: clamp(2.6rem, 5vw, 4.35rem);
  line-height: 1.22;
  letter-spacing: -0.02em;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.hero-card,
.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 30px;
  box-shadow: var(--shadow);
}
.hero-card h2,
.card h3,
.card h2 {
  margin-top: 0;
  color: var(--navy-dark);
}
.check-list,
.dot-list {
  padding-left: 1.2em;
  margin: 0;
}
.check-list li,
.dot-list li { margin-bottom: 10px; }

.trust-bar {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #ffffff;
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  padding: 28px 0;
}
.trust-grid div {
  text-align: center;
  padding: 6px 12px;
}
.trust-grid strong {
  display: block;
  color: var(--navy-dark);
  font-size: 1.18rem;
  line-height: 1.3;
}
.trust-grid span {
  color: var(--muted);
  font-size: 0.93rem;
}

.cards {
  display: grid;
  gap: 24px;
}
.cards.three { grid-template-columns: repeat(3, 1fr); }
.cards.two { grid-template-columns: repeat(2, 1fr); }
.service-card p,
.area-card p,
.card p { color: var(--muted); }
.security-section {
  background: linear-gradient(180deg, #f5f8fb 0%, #eef4f9 100%);
}
.section-head.narrow { text-align: left; }

.company-grid {
  display: grid;
  grid-template-columns: 1fr 1.08fr;
  gap: 30px;
  align-items: start;
}
.company-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 16px;
  background: var(--white);
  border: 1px solid var(--line);
}
.company-table th,
.company-table td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.company-table th {
  width: 140px;
  color: var(--navy-dark);
  background: #f8fbfe;
}
.company-table tr:last-child th,
.company-table tr:last-child td { border-bottom: none; }

.cta-section { padding-top: 18px; }
.cta-box {
  border-radius: 24px;
  background: var(--navy-dark);
  color: var(--white);
  padding: 34px 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.cta-box h2 {
  margin: 10px 0 0;
  color: var(--white);
  font-size: clamp(1.42rem, 3vw, 2rem);
  line-height: 1.45;
}
.cta-box .eyebrow { color: #d4e2f0; }
.cta-box .btn {
  background: var(--white);
  color: var(--navy-dark) !important;
  border-color: var(--white);
}

.page-hero {
  padding: 80px 0 30px;
  background: linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
}
.two-col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.form-grid label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-weight: 600;
  color: var(--navy-dark);
}
.form-grid .full { grid-column: 1 / -1; }
input,
textarea {
  width: 100%;
  border: 1px solid #cfd9e2;
  border-radius: 12px;
  padding: 13px 14px;
  font: inherit;
  color: var(--text);
  background: var(--white);
}
input:focus,
textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(44, 84, 127, 0.1);
}
.form-note,
.notice,
.mt16 { color: var(--muted); }
.mt16 { margin-top: 16px; }
.notice {
  background: #f7f9fb;
  border-left: 4px solid var(--blue);
  padding: 14px 16px;
  border-radius: 10px;
}
.legal-copy h2 { margin-top: 34px; color: var(--navy-dark); }

.site-footer {
  margin-top: 40px;
  border-top: 1px solid var(--line);
  background: #fafcfe;
}
.footer-inner {
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.footer-inner p { margin: 6px 0 0; color: var(--muted); }
.footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

@media (max-width: 960px) {
  .hero-grid,
  .company-grid,
  .cards.three,
  .cards.two,
  .trust-grid,
  .two-col,
  .form-grid {
    grid-template-columns: 1fr;
  }
  .cta-box,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 760px) {
  .container,
  .narrow { width: min(100% - 32px, 1180px); }
  .nav-toggle { display: block; }
  .site-nav {
    display: none;
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    padding: 16px 20px 20px;
    flex-direction: column;
    align-items: flex-start;
  }
  .site-nav.open { display: flex; }
  .section { padding: 72px 0; }
  .hero { padding-top: 72px; }
  .hero h1 { font-size: clamp(2.2rem, 10vw, 3rem); }
}