:root {
  --bg: #f3f6fc;
  --surface: #ffffff;
  --surface-soft: #f7f9ff;
  --ink: #0f1d40;
  --ink-subtle: #495b86;
  --line: #d8e1f2;
  --accent: #113b92;
  --accent-deep: #0a2a6e;
  --footer: #0b1736;
  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 16px 36px rgba(19, 41, 92, 0.08);
  --shadow-soft: 0 10px 24px rgba(12, 30, 72, 0.06);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Hiragino Sans", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #f7f9ff 0%, #f2f6ff 48%, #f8faff 100%);
  line-height: 1.75;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-deep);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid rgba(17, 59, 146, 0.28);
  outline-offset: 2px;
}

img {
  max-width: 100%;
}

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.section {
  padding: 88px 0;
}

.section-sm {
  padding: 64px 0;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--accent-deep);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-title {
  margin: 0;
  font-size: clamp(1.75rem, 2.5vw, 2.25rem);
  line-height: 1.35;
}

.lead {
  margin: 14px 0 0;
  color: var(--ink-subtle);
  font-size: clamp(1rem, 1.9vw, 1.1rem);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid transparent;
  background: rgba(250, 252, 255, 0.86);
  backdrop-filter: blur(8px);
  transition: background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.site-header.is-scrolled {
  background: rgba(252, 253, 255, 0.98);
  border-color: var(--line);
  box-shadow: 0 10px 24px rgba(10, 35, 82, 0.09);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  gap: 22px;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.site-brand__logo {
  display: block;
  height: 36px;
  width: auto;
  max-width: min(240px, 46vw);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-nav a {
  position: relative;
  font-weight: 600;
  color: var(--ink);
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.site-nav a:hover::after,
.site-nav a.is-active::after {
  transform: scaleX(1);
}

.site-nav .nav-cta {
  padding: 10px 16px;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
}

.site-nav .nav-cta::after {
  display: none;
}

.site-nav .nav-cta:hover,
.site-nav .nav-cta.is-active {
  background: var(--accent-deep);
  color: #fff;
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink);
  margin: 3px 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 130px 0 92px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(73, 139, 255, 0.18), transparent 45%),
    radial-gradient(circle at 85% 5%, rgba(11, 90, 188, 0.12), transparent 35%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(255, 255, 255, 0.38));
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.hero p {
  margin: 20px 0 0;
  font-size: clamp(1rem, 2vw, 1.18rem);
  color: var(--ink-subtle);
}

.hero-actions {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-actions--center {
  justify-content: center;
}

.external-cta {
  padding: 10px 0 4px;
  border: none;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  color: inherit;
}

.external-cta--single {
  display: flex;
  justify-content: center;
}

.external-cta__button {
  min-height: 56px;
  min-width: min(430px, 100%);
  padding: 0 30px;
  font-size: 1.04rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 22px rgba(17, 59, 146, 0.22);
}

.btn-primary:hover {
  background: var(--accent-deep);
  color: #fff;
}

.btn-secondary {
  background: #fff;
  border-color: var(--line);
  color: var(--ink);
}

.metrics {
  margin-top: 38px;
  display: grid;
  grid-template-columns: repeat(5, minmax(120px, 1fr));
  gap: 12px;
}

.metric {
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 12px;
}

.metric strong {
  display: block;
  font-size: 1.2rem;
}

.metric span {
  font-size: 0.86rem;
  color: var(--ink-subtle);
}

.grid-2,
.grid-3 {
  display: grid;
  gap: 20px;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.card h3 {
  margin: 0;
  font-size: 1.25rem;
}

.card p {
  margin: 12px 0 0;
  color: var(--ink-subtle);
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  border-radius: 999px;
  padding: 4px 12px;
  background: #e8efff;
  color: var(--accent-deep);
  font-size: 0.82rem;
  font-weight: 700;
}

.list-clean {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.list-clean li {
  position: relative;
  padding-left: 18px;
  margin-top: 10px;
}

.list-clean li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.8em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4f79cc;
}

.criteria-list {
  margin: 16px 0 0;
  padding-left: 22px;
}

.criteria-list li {
  margin-top: 10px;
}

.support-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.support-tags span {
  padding: 9px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  font-weight: 600;
  font-size: 0.9rem;
}

.company-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 18px;
  background: #fff;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--line);
}

.company-table th,
.company-table td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.company-table tr:last-child th,
.company-table tr:last-child td {
  border-bottom: none;
}

.company-table th {
  width: 180px;
  background: var(--surface-soft);
}

.quote-block {
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #fff;
}

.quote-block p {
  margin: 0;
  color: var(--ink-subtle);
}

.quote-block p + p {
  margin-top: 14px;
}

.step-list {
  counter-reset: step;
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.step-list li {
  position: relative;
  margin-top: 12px;
  padding: 14px 16px 14px 56px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
}

.step-list li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 0.86rem;
  font-weight: 700;
}

.contact-wrap {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 24px;
  align-items: start;
}

.contact-form {
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: var(--shadow);
}

.form-row {
  margin-top: 16px;
}

.form-row:first-child {
  margin-top: 0;
}

label {
  display: block;
  font-weight: 700;
  margin-bottom: 6px;
}

.required {
  margin-left: 6px;
  color: #bd1e32;
  font-size: 0.82rem;
}

input,
textarea,
select {
  width: 100%;
  padding: 11px 12px;
  border-radius: 10px;
  border: 1px solid #becbe6;
  background: #fff;
  color: var(--ink);
  font-size: 1rem;
  font-family: inherit;
}

textarea {
  min-height: 170px;
  resize: vertical;
}

.form-note {
  margin-top: 12px;
  color: var(--ink-subtle);
  font-size: 0.9rem;
}

.form-status {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid transparent;
  display: none;
}

.form-status.is-visible {
  display: block;
}

.form-status.is-error {
  color: #8b1122;
  background: #fff2f4;
  border-color: #f4c5cb;
}

.form-status.is-info {
  color: #0d2f73;
  background: #edf3ff;
  border-color: #ccdaf9;
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.btn[disabled] {
  opacity: 0.72;
  cursor: not-allowed;
}

.site-footer {
  margin-top: 74px;
  background: var(--footer);
  color: #d7e2ff;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  padding: 34px 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.footer-links a {
  color: #eaf0ff;
}

.small {
  font-size: 0.9rem;
  color: var(--ink-subtle);
}

.page-hero {
  padding: 112px 0 54px;
}

.center-panel {
  max-width: 700px;
  margin: 48px auto;
  text-align: center;
  padding: 36px 30px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: var(--shadow-soft);
}

@media (max-width: 980px) {
  .metrics {
    grid-template-columns: repeat(3, minmax(120px, 1fr));
  }

  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contact-wrap {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .site-brand__logo {
    height: 32px;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 78px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding: 14px 16px 18px;
    border-bottom: 1px solid var(--line);
    background: rgba(254, 255, 255, 0.99);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 8px 6px;
  }

  .site-nav .nav-cta {
    text-align: center;
  }

  .hero {
    padding-top: 108px;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

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

  .company-table th {
    border-bottom: 0;
    padding-bottom: 4px;
  }

  .company-table td {
    padding-top: 2px;
  }
}

@media (max-width: 640px) {
  .site-brand__logo {
    height: 30px;
  }

  .section {
    padding: 70px 0;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .metrics {
    grid-template-columns: repeat(2, minmax(120px, 1fr));
  }

  .contact-form {
    padding: 20px;
  }
}