:root {
  --green: #0f3d2e;
  --green-2: #163d35;
  --blue-gray: #123040;
  --ivory: #f7f3ea;
  --soft: #f5f6f7;
  --ink: #1f2933;
  --muted: #66737f;
  --line: #dce2e6;
  --gold: #a8874a;
  --gold-soft: #efe7d7;
  --white: #ffffff;
  --shadow: 0 10px 28px rgba(18, 48, 64, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.8;
  letter-spacing: 0;
}

body.nav-open {
  overflow: hidden;
}

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

button,
input,
textarea {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 14px 40px;
  border-bottom: 1px solid rgba(220, 226, 230, 0.78);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 260px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(15, 61, 46, 0.35);
  border-radius: 6px;
  color: var(--green);
  background: var(--ivory);
  font-weight: 700;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.25;
}

.brand strong {
  font-size: 15px;
  font-weight: 700;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
}

.site-nav a {
  white-space: nowrap;
}

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

.mobile-only {
  display: none;
}

.nav-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 700;
  line-height: 1.2;
  transition:
    background 160ms ease,
    border-color 160ms ease,
    color 160ms ease;
}

.nav-cta,
.button.primary {
  color: var(--white);
  background: var(--green);
}

.nav-cta:hover,
.button.primary:hover {
  color: var(--white);
  background: #0a2f24;
}

.button.secondary {
  color: var(--green);
  border-color: rgba(15, 61, 46, 0.5);
  background: transparent;
}

.button.secondary.light {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.7);
}

.button.secondary:hover {
  border-color: var(--green);
  background: rgba(15, 61, 46, 0.06);
}

.button.secondary.light:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.1);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.62;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 12px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 6px 0;
  background: var(--green);
}

.hero {
  position: relative;
  min-height: 70vh;
  overflow: hidden;
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(15, 61, 46, 0.98), rgba(18, 48, 64, 0.96)),
    var(--green);
}

.hero-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.34;
  background:
    linear-gradient(120deg, transparent 0 34%, rgba(255, 255, 255, 0.12) 34.2%, transparent 34.5%),
    linear-gradient(150deg, transparent 0 62%, rgba(168, 135, 74, 0.22) 62.2%, transparent 62.5%),
    radial-gradient(circle at 80% 22%, rgba(247, 243, 234, 0.12), transparent 30%);
}

.hero::after {
  position: absolute;
  right: -120px;
  bottom: -170px;
  width: 520px;
  height: 520px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 50%;
  content: "";
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 80px));
  margin: 0 auto;
  padding: 96px 0 88px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.6;
  text-transform: uppercase;
  letter-spacing: 0;
}

.hero .eyebrow {
  max-width: 720px;
  color: rgba(239, 231, 215, 0.86);
}

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

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: 48px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: 34px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 860px;
  margin-bottom: 32px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.9;
}

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

.facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  max-width: 1120px;
  margin: -42px auto 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
  position: relative;
  z-index: 2;
}

.facts div {
  padding: 28px 32px;
  border-right: 1px solid var(--line);
}

.facts div:last-child {
  border-right: 0;
}

.facts strong {
  display: block;
  color: var(--green);
  font-size: 25px;
  font-weight: 700;
  line-height: 1.3;
}

.facts span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
}

.section {
  padding: 88px 40px;
}

.section.muted,
.section.legal {
  background: var(--soft);
}

.section-heading {
  max-width: 1120px;
  margin: 0 auto 36px;
}

.section-heading.narrow {
  max-width: 900px;
}

.section-heading p:not(.section-kicker) {
  max-width: 760px;
  color: var(--muted);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  max-width: 1120px;
  margin: 0 auto;
}

.service-card {
  min-height: 310px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.service-card:hover {
  border-color: rgba(15, 61, 46, 0.28);
  box-shadow: var(--shadow);
}

.service-number {
  margin-bottom: 24px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 700;
}

.service-short {
  color: var(--green);
  font-weight: 500;
}

.service-card p:last-child {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 15px;
}

.card-title-row {
  display: grid;
  gap: 8px;
}

.badge {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  min-height: 26px;
  padding: 2px 10px;
  border: 1px solid rgba(168, 135, 74, 0.32);
  border-radius: 999px;
  color: #6f572a;
  background: var(--gold-soft);
  font-size: 12px;
  font-weight: 700;
}

.company-list {
  max-width: 900px;
  margin: 0 auto;
  background: var(--white);
}

.company-list div {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 32px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

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

.company-list dt {
  color: var(--muted);
  font-weight: 700;
}

.company-list dd {
  margin: 0;
  font-weight: 500;
}

.company-contact {
  display: grid;
  gap: 4px;
}

.company-contact a,
.contact-methods a,
.site-footer a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.representative-note {
  max-width: 900px;
  margin: 36px auto 0;
  padding: 24px 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.representative-note h3 {
  margin-bottom: 12px;
}

.representative-note p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.philosophy {
  display: grid;
  grid-template-columns: 0.9fr 1.25fr;
  gap: 72px;
  max-width: 1120px;
  margin: 0 auto;
}

.philosophy-copy {
  padding-left: 28px;
  border-left: 3px solid var(--green);
}

.philosophy-copy p {
  color: var(--muted);
}

.news-list {
  max-width: 900px;
  margin: 0 auto;
  border-top: 1px solid var(--line);
}

.news-list article {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.news-list time {
  color: var(--green);
  font-weight: 700;
}

.news-list p {
  margin-bottom: 0;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 0.9fr);
  gap: 56px;
  max-width: 1120px;
  margin: 0 auto;
}

.contact-copy p:not(.section-kicker) {
  color: var(--muted);
}

.contact-methods {
  display: grid;
  gap: 10px;
  margin-top: 24px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.contact-methods p {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 16px;
  margin: 0;
}

.contact-methods span {
  color: var(--muted);
  font-weight: 700;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-weight: 700;
}

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

.contact-form input:disabled,
.contact-form textarea:disabled {
  color: var(--muted);
  background: #eef1f2;
}

.contact-form textarea {
  resize: vertical;
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.form-status {
  min-height: 24px;
  margin: 0;
  color: var(--green);
  font-weight: 700;
}

.legal-block {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 0 0 26px;
  border-left: 3px solid rgba(15, 61, 46, 0.28);
}

.legal-block h3 {
  margin: 24px 0 8px;
  font-size: 17px;
  font-weight: 700;
}

.legal-block p:last-child {
  color: var(--muted);
}

.site-footer {
  color: rgba(255, 255, 255, 0.78);
  background: var(--blue-gray);
}

.footer-inner {
  display: grid;
  gap: 26px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 42px 40px;
}

.site-footer strong {
  display: block;
  margin-bottom: 8px;
  color: var(--white);
  font-size: 18px;
}

.site-footer p {
  margin-bottom: 0;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  font-size: 14px;
}

.footer-nav a:hover {
  color: var(--white);
}

.copyright {
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 13px;
}

@media (max-width: 1080px) {
  .site-header {
    padding: 12px 24px;
  }

  .site-nav {
    gap: 14px;
    font-size: 13px;
  }

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

@media (max-width: 760px) {
  body {
    font-size: 15px;
    line-height: 1.8;
  }

  .site-header {
    min-height: 68px;
    padding: 10px 18px;
  }

  .brand {
    min-width: 0;
  }

  .brand strong {
    font-size: 14px;
  }

  .brand small {
    font-size: 10px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    inset: 68px 0 auto;
    display: grid;
    gap: 0;
    max-height: calc(100vh - 68px);
    padding: 10px 18px 18px;
    border-bottom: 1px solid var(--line);
    background: var(--white);
    box-shadow: 0 20px 32px rgba(18, 48, 64, 0.1);
    overflow-y: auto;
    transform: translateY(-120%);
    transition: transform 180ms ease;
  }

  .site-nav.is-open {
    transform: translateY(0);
  }

  .site-nav a {
    min-height: 48px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--line);
  }

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

  .mobile-only {
    display: flex;
  }

  .hero {
    min-height: auto;
  }

  .hero::after {
    right: -220px;
    bottom: -260px;
  }

  .hero-inner {
    width: calc(100% - 36px);
    padding: 58px 0 74px;
  }

  .hero .eyebrow {
    font-size: 11px;
  }

  h1 {
    font-size: 34px;
    line-height: 1.28;
  }

  h2 {
    font-size: 28px;
  }

  h3 {
    font-size: 18px;
  }

  .hero-lead {
    font-size: 15px;
    line-height: 1.85;
  }

  .hero-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .facts {
    grid-template-columns: 1fr;
    width: calc(100% - 36px);
    margin-top: -34px;
  }

  .facts div {
    padding: 22px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .facts div:last-child {
    border-bottom: 0;
  }

  .facts strong {
    font-size: 22px;
  }

  .section {
    padding: 64px 18px;
  }

  .section-heading {
    margin-bottom: 26px;
  }

  .service-grid,
  .philosophy,
  .contact-section {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .service-card {
    min-height: auto;
    padding: 22px;
  }

  .representative-note {
    padding: 22px;
  }

  .company-list div {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 18px 0;
  }

  .contact-methods p {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .philosophy-copy,
  .legal-block {
    padding-left: 18px;
  }

  .news-list article {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .contact-form {
    padding: 20px;
  }

  .footer-inner {
    padding: 34px 18px;
  }

  .footer-nav {
    display: grid;
    gap: 8px;
  }
}