:root {
  --blue: #003c8f;
  --blue2: #005bd4;
  --aqua: #00c8ff;
  --ink: #08214b;
  --text: #26364f;
  --muted: #66758f;
  --bg: #f5f9ff;
  --line: #dbe7f6;
  --white: #fff;
  --shadow: 0 18px 50px rgba(0, 60, 143, 0.14);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    "Noto Sans JP",
    "Hiragino Kaku Gothic ProN",
    "Yu Gothic",
    Meiryo,
    sans-serif;
  color: var(--text);
  line-height: 1.8;
  background: #fff;
}

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

img {
  max-width: 100%;
  height: auto;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(219, 231, 246, 0.8);
}

.header-inner {
  height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand img {
  width: 210px;
  display: block;
}

.nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-weight: 700;
  color: var(--ink);
  font-size: 14px;
}

.nav a {
  opacity: 0.86;
}

.nav a:hover {
  color: var(--blue2);
  opacity: 1;
}

.nav .contact {
  padding: 10px 18px;
  border-radius: 999px;
  color: #fff;
  background: linear-gradient(120deg, var(--blue), var(--blue2));
  box-shadow: 0 10px 24px rgba(0, 60, 143, 0.2);
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 720px;
  background:
    linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.98) 0%,
      rgba(255, 255, 255, 0.96) 34%,
      rgba(240, 248, 255, 0.48) 57%,
      rgba(0, 60, 143, 0.14) 100%
    ),
    url("assets/hero-bg.jpg") center right / cover no-repeat;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -160px -220px 35%;
  height: 420px;
  background: radial-gradient(circle, var(--aqua), transparent 60%);
  opacity: 0.24;
  filter: blur(40px);
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding: 120px 0 80px;
}

.eyebrow {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  color: var(--blue);
  font-weight: 800;
  letter-spacing: 0.08em;
  font-size: 13px;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 34px;
  height: 2px;
  background: var(--aqua);
  display: inline-block;
}

.hero h1 {
  margin: 24px 0;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 1.15;
  letter-spacing: 0.04em;
  color: var(--ink);
  font-weight: 900;
}

.hero h1 span {
  color: var(--blue2);
}

.lead {
  font-size: 18px;
  font-weight: 600;
  color: #243a60;
  max-width: 650px;
}

.actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 38px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  border-radius: 999px;
  padding: 14px 24px;
  font-weight: 800;
  border: 1px solid var(--blue);
  transition: 0.2s;
}

.btn.primary {
  background: linear-gradient(120deg, var(--blue), var(--blue2));
  color: #fff;
  box-shadow: 0 16px 35px rgba(0, 60, 143, 0.23);
}

.btn.secondary {
  background: rgba(255, 255, 255, 0.9);
  color: var(--blue);
}

.btn:hover {
  transform: translateY(-2px);
}

/* Service Strip */
.service-strip {
  position: relative;
  z-index: 2;
  margin-top: -58px;
}

.service-strip .panel {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.mini-service {
  padding: 26px 24px;
  border-right: 1px solid var(--line);
}

.mini-service:last-child {
  border-right: 0;
}

.mini-service b {
  display: block;
  color: var(--ink);
  font-size: 18px;
  margin-bottom: 4px;
}

.mini-service span {
  font-size: 13px;
  color: var(--muted);
}

/* Section */
.section {
  padding: 95px 0;
}

.section.alt {
  background: linear-gradient(180deg, #f6fbff, #fff);
}

.section-head {
  margin-bottom: 42px;
}

.section-head small {
  color: var(--blue);
  font-weight: 900;
  letter-spacing: 0.12em;
}

.section-head h2 {
  margin: 0.25em 0 0;
  color: var(--ink);
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.28;
}

.section-head p {
  max-width: 760px;
  color: var(--muted);
  font-weight: 600;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px;
  box-shadow: 0 10px 30px rgba(13, 55, 100, 0.06);
}

.card .num {
  color: var(--aqua);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.card h3 {
  margin: 10px 0;
  font-size: 23px;
  color: var(--ink);
}

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

/* Split */
.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 44px;
  align-items: center;
}

.visual {
  border-radius: 28px;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
  background: #fff;
}

.visual img {
  display: block;
}

.feature-list {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.feature {
  padding: 20px 22px;
  border-left: 4px solid var(--aqua);
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 10px 24px rgba(13, 55, 100, 0.06);
}

.feature b {
  display: block;
  color: var(--ink);
  font-size: 18px;
}

.feature span {
  color: var(--muted);
}

/* Page Hero */
.page-hero {
  background: linear-gradient(135deg, #f3f9ff, #fff 48%, #eaf8ff);
  padding: 70px 0;
  border-bottom: 1px solid var(--line);
}

.page-hero h1 {
  font-size: 48px;
  color: var(--ink);
  margin: 0;
}

.page-hero p {
  color: var(--muted);
  font-weight: 700;
}

/* Content */
.content-box {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 42px;
  box-shadow: 0 10px 30px rgba(13, 55, 100, 0.06);
}

.company-table {
  width: 100%;
  border-collapse: collapse;
}

.company-table th,
.company-table td {
  padding: 18px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.company-table th {
  width: 220px;
  color: var(--ink);
  background: #f8fbff;
}

/* CTA */
.cta {
  padding: 80px 0;
  background: linear-gradient(120deg, var(--ink), var(--blue));
  color: #fff;
}

.cta .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.cta h2 {
  font-size: 34px;
  margin: 0;
}

.cta p {
  opacity: 0.85;
}

/* Footer */
.footer {
  background: #06152d;
  color: rgba(255, 255, 255, 0.75);
  padding: 42px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}

.footer img {
  width: 170px;
 /* filter: brightness(0) invert(1);*/
  opacity: 0.95;
}

.footer small {
  display: block;
}

/* Responsive */
@media (max-width: 850px) {
  .header-inner {
    height: auto;
    padding: 16px 0;
    align-items: flex-start;
  }

  .brand img {
    width: 170px;
  }

  .nav {
    display: none;
  }

  .hero {
    min-height: 640px;
  }

  .hero-inner {
    padding: 82px 0;
  }

  .service-strip {
    margin-top: 0;
  }

  .service-strip .panel,
  .cards,
  .split {
    grid-template-columns: 1fr;
  }

  .mini-service {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .cta .container,
  .footer-inner {
    display: block;
  }

  .company-table th,
  .company-table td {
    display: block;
    width: 100%;
  }

  .content-box {
    padding: 26px;
  }

  .section {
    padding: 70px 0;
  }
}