:root {
  --ink: #163342;
  --muted: #607985;
  --paper: #f7fbfd;
  --paper-strong: #e7f3f8;
  --white: #ffffff;
  --blue: #2f8fbd;
  --blue-dark: #175b78;
  --blue-soft: #8ccbe2;
  --blue-aqua: #4f9fb6;
  --line: #d5e5eb;
  --shadow: 0 20px 60px rgba(22, 51, 66, 0.14);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    "Yu Gothic",
    "Hiragino Kaku Gothic ProN",
    Meiryo,
    Arial,
    sans-serif;
  line-height: 1.7;
  letter-spacing: 0;
}

body.nav-open {
  overflow: hidden;
}

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

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

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  right: 0;
  left: 0;
  color: var(--white);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  transition:
    background-color 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 10px 30px rgba(22, 51, 66, 0.1);
  backdrop-filter: blur(14px);
}

.header-inner {
  width: min(1180px, calc(100% - 32px));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 190px;
  font-weight: 700;
}

.brand-mark {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 2px solid currentColor;
  border-radius: 6px;
  font-size: 14px;
  line-height: 1;
}

.brand-name,
.brand-sub {
  display: block;
}

.brand-name {
  font-size: 17px;
  line-height: 1.1;
}

.brand-sub {
  margin-top: 3px;
  color: currentColor;
  font-size: 11px;
  font-weight: 500;
  opacity: 0.74;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  margin-left: auto;
  font-size: 14px;
  font-weight: 700;
}

.site-nav a {
  position: relative;
  padding: 8px 0;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 2px;
  background: var(--blue-soft);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

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

.header-cta,
.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  font-weight: 700;
  line-height: 1.2;
  transition:
    transform 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease;
}

.header-cta {
  min-width: 118px;
  padding: 0 18px;
  color: var(--white);
  background: var(--blue);
}

.site-header:not(.is-scrolled):not(.is-open) .header-cta {
  background: rgba(47, 143, 189, 0.92);
}

.button {
  min-width: 164px;
  padding: 0 22px;
  border: 1px solid transparent;
}

.button.primary {
  color: var(--white);
  background: var(--blue);
}

.button.secondary {
  color: var(--ink);
  border-color: rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.88);
}

.button:hover,
.header-cta:hover {
  transform: translateY(-2px);
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  margin-left: auto;
  padding: 0;
  border: 1px solid currentColor;
  border-radius: 6px;
  color: inherit;
  background: transparent;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 720px;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: var(--white);
}

.hero-image,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(9, 28, 40, 0.86) 0%, rgba(12, 42, 58, 0.58) 42%, rgba(12, 42, 58, 0.12) 100%),
    linear-gradient(0deg, rgba(9, 28, 40, 0.48), rgba(12, 42, 58, 0.08));
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-top: 76px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 16px;
  color: var(--blue-soft);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 700px;
  margin: 0;
  font-size: 76px;
  line-height: 1;
}

.hero-lead {
  max-width: 760px;
  margin: 28px 0 0;
  font-size: 30px;
  font-weight: 700;
  line-height: 1.45;
}

.hero-copy {
  max-width: 650px;
  margin: 20px 0 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 17px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.quick-strip {
  background: var(--blue-dark);
  color: var(--white);
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.quick-grid div {
  min-height: 112px;
  padding: 26px 28px;
  border-left: 1px solid rgba(255, 255, 255, 0.14);
}

.quick-grid div:last-child {
  border-right: 1px solid rgba(255, 255, 255, 0.14);
}

.quick-grid span {
  display: block;
  color: rgba(255, 255, 255, 0.66);
  font-size: 12px;
  font-weight: 800;
}

.quick-grid strong {
  display: block;
  margin-top: 8px;
  font-size: 18px;
}

.section {
  padding: 104px 0;
}

.section-light {
  background: var(--white);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 72px;
  align-items: start;
}

h2 {
  margin: 0;
  font-size: 42px;
  line-height: 1.3;
}

h3 {
  margin: 0;
  font-size: 21px;
  line-height: 1.45;
}

p {
  margin: 0;
}

.copy-block p + p {
  margin-top: 18px;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 42px;
}

.section-heading.narrow {
  max-width: 680px;
}

.section-heading p:not(.section-kicker) {
  margin-top: 16px;
  color: var(--muted);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.service-card,
.reason-list article,
.case-grid article {
  min-height: 238px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.service-card span {
  display: inline-flex;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  border-radius: 50%;
  color: var(--white);
  background: var(--blue);
  font-weight: 800;
}

.service-card p,
.reason-list p,
.case-grid p:not(.case-label),
.company-layout p,
.feature-band p,
.recruit-inner p,
.contact-layout p {
  margin-top: 14px;
  color: var(--muted);
}

.reason-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.reason-list article {
  background: var(--white);
  box-shadow: 0 16px 38px rgba(22, 51, 66, 0.06);
}

.reason-list article:nth-child(2) {
  border-top-color: var(--blue);
}

.reason-list article:nth-child(3) {
  border-top-color: var(--blue-soft);
}

.reason-list article:nth-child(4) {
  border-top-color: var(--blue-aqua);
}

.process {
  background: var(--paper-strong);
}

.flow-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: flow;
}

.flow-list li {
  min-height: 220px;
  padding: 24px;
  border-radius: var(--radius);
  background: var(--white);
}

.flow-list span {
  display: inline-grid;
  width: 34px;
  height: 34px;
  place-items: center;
  margin-bottom: 22px;
  border-radius: 50%;
  color: var(--white);
  background: var(--blue-soft);
  font-weight: 800;
}

.flow-list p {
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
}

.feature-band {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
}

.commitment-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.commitment-grid div {
  min-height: 142px;
  padding: 24px;
  border-radius: var(--radius);
  background: var(--blue-dark);
  color: var(--white);
}

.commitment-grid div:nth-child(2) {
  background: var(--blue);
}

.commitment-grid div:nth-child(3) {
  background: var(--blue-aqua);
}

.commitment-grid div:nth-child(4) {
  background: var(--blue-soft);
  color: var(--ink);
}

.commitment-grid strong,
.commitment-grid span {
  display: block;
}

.commitment-grid strong {
  font-size: 24px;
}

.commitment-grid span {
  margin-top: 10px;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.case-label {
  margin-bottom: 18px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

.news-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 54px;
  align-items: start;
}

.news-list {
  border-top: 1px solid var(--line);
}

.news-list a {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 22px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.news-list time {
  color: var(--blue);
  font-weight: 800;
}

.news-list span {
  color: var(--ink);
}

.recruit-band {
  padding: 74px 0;
  color: var(--white);
  background: var(--blue-dark);
}

.recruit-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.recruit-inner div {
  max-width: 720px;
}

.company-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 64px;
}

.company-table {
  margin: 0;
  border-top: 1px solid var(--line);
}

.company-table div {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.company-table dt {
  color: var(--muted);
  font-weight: 800;
}

.company-table dd {
  margin: 0;
}

.contact-section {
  padding: 104px 0;
  color: var(--white);
  background: var(--ink);
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}

.contact-actions {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.contact-actions.spaced {
  margin-top: 28px;
}

.contact-card {
  display: flex;
  min-height: 182px;
  flex-direction: column;
  justify-content: center;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
}

.contact-card.accent {
  color: var(--ink);
  background: var(--blue-soft);
}

.contact-card span,
.contact-card small {
  color: currentColor;
  opacity: 0.72;
}

.contact-card strong {
  display: block;
  margin: 10px 0;
  font-size: 24px;
  line-height: 1.3;
  word-break: break-word;
}

.site-footer {
  padding: 54px 0 28px;
  color: var(--white);
  background: #0d2230;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 42px;
  align-items: start;
}

.footer-brand {
  color: var(--white);
}

.footer-grid p {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.64);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(140px, 1fr));
  gap: 10px 28px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.82);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 42px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.64);
}

.page-hero {
  position: relative;
  min-height: 420px;
  display: grid;
  align-items: end;
  padding: 150px 0 72px;
  overflow: hidden;
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(9, 28, 40, 0.9), rgba(12, 42, 58, 0.58)),
    url("assets/images/hero-operations.png") center / cover no-repeat;
}

.page-hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: 56px;
  line-height: 1.15;
}

.page-hero p {
  max-width: 760px;
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 18px;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 13px;
  font-weight: 700;
}

.breadcrumbs a {
  color: var(--blue-soft);
}

.page-nav {
  position: sticky;
  z-index: 8;
  top: 76px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
}

.page-nav .container {
  display: flex;
  gap: 22px;
  overflow-x: auto;
  padding: 14px 0;
  font-size: 14px;
  font-weight: 800;
  white-space: nowrap;
}

.page-nav a {
  color: var(--muted);
}

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

.page-intro {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 64px;
  align-items: start;
}

.lead-text {
  color: var(--muted);
  font-size: 18px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.detail-card {
  min-height: 260px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 16px 38px rgba(22, 51, 66, 0.06);
}

.detail-card .label {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

.detail-card p,
.service-row p,
.plain-list p,
.page-copy p {
  margin-top: 12px;
  color: var(--muted);
}

.service-stack {
  border-top: 1px solid var(--line);
}

.service-row {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}

.service-row h3 {
  color: var(--blue-dark);
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 24px;
  color: var(--muted);
}

.check-list li::before {
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
  content: "";
}

.simple-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
}

.simple-table th,
.simple-table td {
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.simple-table th {
  width: 220px;
  color: var(--blue-dark);
  font-weight: 800;
}

.page-cta {
  padding: 76px 0;
  color: var(--white);
  background: var(--blue-dark);
}

.page-cta .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
}

.page-cta p {
  max-width: 680px;
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.78);
}

.plain-list {
  display: grid;
  gap: 18px;
}

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

.contact-form {
  display: grid;
  gap: 16px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-weight: 800;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: var(--white);
  font: inherit;
}

.contact-form textarea {
  min-height: 150px;
  resize: vertical;
}

.form-note {
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 1040px) {
  .site-nav,
  .header-cta {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .site-header.is-open .site-nav {
    position: fixed;
    top: 76px;
    right: 0;
    left: 0;
    display: grid;
    gap: 0;
    max-height: calc(100vh - 76px);
    padding: 12px 20px 24px;
    overflow: auto;
    background: var(--white);
    box-shadow: 0 24px 46px rgba(22, 51, 66, 0.14);
  }

  .site-header.is-open .site-nav a {
    padding: 18px 0;
    border-bottom: 1px solid var(--line);
  }

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

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

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

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

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

  .page-intro,
  .service-row {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(100% - 28px, 1120px);
  }

  .header-inner {
    width: min(100% - 24px, 1180px);
    min-height: 68px;
  }

  .brand {
    min-width: 0;
  }

  .brand-mark {
    width: 42px;
    height: 42px;
    font-size: 13px;
  }

  .brand-name {
    font-size: 15px;
  }

  .brand-sub {
    display: none;
  }

  .site-header.is-open .site-nav {
    top: 68px;
    max-height: calc(100vh - 68px);
  }

  .page-nav {
    top: 68px;
  }

  .hero {
    min-height: 680px;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgba(9, 28, 40, 0.9), rgba(12, 42, 58, 0.54)),
      linear-gradient(0deg, rgba(9, 28, 40, 0.55), rgba(12, 42, 58, 0.18));
  }

  .hero h1 {
    font-size: 48px;
  }

  .hero-lead {
    font-size: 24px;
  }

  .hero-copy {
    font-size: 16px;
  }

  .page-hero {
    min-height: 360px;
    padding: 128px 0 56px;
  }

  .page-hero h1 {
    font-size: 38px;
  }

  .page-hero p {
    font-size: 16px;
  }

  .button {
    width: 100%;
  }

  .quick-grid,
  .split,
  .feature-band,
  .news-layout,
  .company-layout,
  .contact-layout,
  .contact-actions,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .quick-grid div,
  .quick-grid div:last-child {
    min-height: 92px;
    padding: 18px;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  }

  .section,
  .contact-section {
    padding: 72px 0;
  }

  h2 {
    font-size: 32px;
  }

  h3 {
    font-size: 19px;
  }

  .split,
  .feature-band,
  .company-layout,
  .contact-layout {
    gap: 32px;
  }

  .service-grid,
  .reason-list,
  .flow-list,
  .case-grid,
  .commitment-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .service-card,
  .reason-list article,
  .case-grid article,
  .flow-list li {
    min-height: 0;
  }

  .news-list a,
  .company-table div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .recruit-inner {
    display: grid;
    gap: 28px;
  }

  .footer-links {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    display: grid;
  }

  .simple-table th,
  .simple-table td {
    display: block;
    width: 100%;
    padding: 14px 0;
  }

  .page-cta .container {
    display: grid;
  }
}