:root {
  --bg: #f4f4f2;
  --ink: #0d0d0d;
  --muted: rgba(13, 13, 13, 0.64);
  --line: rgba(13, 13, 13, 0.1);
  --surface: #ffffff;
  --charcoal: #262626;
  --blue: #12385a;
  --blue-light: #1d5a86;
  --gold: #b0914d;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding-top: 88px;
  background: var(--bg);
  color: var(--ink);
  font-family: "Yu Gothic", "Hiragino Sans", "Meiryo", sans-serif;
  line-height: 1.8;
  overflow-x: hidden;
}

body.is-menu-open {
  overflow: hidden;
}

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

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

.shell {
  width: min(1180px, calc(100vw - 56px));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 100;
  background: rgba(255, 255, 255, 0.82);
  -webkit-backdrop-filter: blur(14px) saturate(1.08);
  backdrop-filter: blur(14px) saturate(1.08);
  border-bottom: 1px solid rgba(13, 13, 13, 0.07);
  box-shadow: 0 8px 24px rgba(13, 13, 13, 0.035);
}

.header-inner.shell {
  width: min(1240px, calc(100vw - 56px));
  max-width: none;
  margin: 0 auto;
}

.footer-inner.shell {
  width: min(1320px, calc(100vw - 64px));
  max-width: none;
  margin: 0 auto;
}

.header-inner {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-logo,
.site-logo:link,
.site-logo:visited,
.site-logo:hover,
.site-logo:active {
  color: #0d0d0d;
  text-decoration: none;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.site-logo__mark {
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  object-fit: contain;
}

.site-logo__text {
  display: inline-block;
  white-space: nowrap;
  line-height: 1;
}

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

.header-nav {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  margin-right: 4px;
}

.header-nav a {
  position: relative;
  color: rgba(13, 13, 13, 0.72);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.header-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -9px;
  height: 1px;
  background: linear-gradient(90deg, rgba(24, 24, 24, 0.2), rgba(176, 145, 77, 0.66));
  opacity: 0;
  transform: scaleX(0.55);
  transform-origin: center;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.header-nav a:hover {
  color: rgba(13, 13, 13, 0.96);
}

.header-nav a:hover::after {
  opacity: 1;
  transform: scaleX(1);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 176px;
  min-height: 56px;
  padding: 0 24px;
  border-radius: 14px;
  border: 1px solid rgba(18, 56, 90, 0.2);
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-light) 100%);
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 16px 30px rgba(18, 56, 90, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.18);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.header-cta:link,
.header-cta:visited,
.header-cta:hover,
.header-cta:active {
  color: #ffffff;
}

.header-cta:hover {
  background: linear-gradient(135deg, #174466 0%, #246b9b 100%);
  box-shadow: 0 18px 34px rgba(18, 56, 90, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.22);
  transform: translateY(-1px);
}

.menu-toggle {
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  padding: 0;
  appearance: none;
}

.menu-toggle span {
  width: 22px;
  height: 2px;
  border-radius: 999px;
  background: #0d0d0d;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-toggle.is-open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.menu-backdrop {
  position: fixed;
  inset: 0;
  z-index: 120;
  background: rgba(16, 16, 16, 0.08);
}

.lp-menu {
  position: absolute;
  right: max(32px, calc((100vw - min(1320px, calc(100vw - 64px))) / 2));
  top: calc(100% + 12px);
  z-index: 130;
  width: min(320px, calc(100vw - 32px));
  padding: 18px;
  border: 1px solid rgba(13, 13, 13, 0.08);
  border-radius: 18px;
  background: rgba(232, 232, 232, 0.78);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 48px rgba(13, 13, 13, 0.08);
  display: grid;
  gap: 4px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.lp-menu.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.lp-menu a {
  padding: 12px 14px;
  border-radius: 12px;
  color: #0d0d0d;
  font-weight: 700;
  text-decoration: none;
}

.lp-menu a:hover {
  background: rgba(13, 13, 13, 0.05);
}

@media (min-width: 981px) {
  .header-cta {
    display: none;
  }
}

@media (max-width: 980px) {
  .header-nav {
    display: none;
  }

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

.company-hero {
  position: relative;
  overflow: hidden;
  min-height: 390px;
  display: flex;
  align-items: center;
  padding: 74px 0 86px;
  background: #fefefe;
}

.company-hero::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 52%;
  width: min(1040px, 88vw);
  height: 230px;
  pointer-events: none;
  background-image:
    linear-gradient(132deg, transparent 0 44%, rgba(185, 151, 85, 0.18) 44.15% 44.35%, transparent 44.55% 58%, rgba(18, 56, 90, 0.09) 58.15% 58.35%, transparent 58.55% 100%),
    linear-gradient(28deg, transparent 0 49%, rgba(185, 151, 85, 0.12) 49.15% 49.35%, transparent 49.55% 100%);
  opacity: 0.5;
  transform: translate(-50%, -50%) skewY(-5deg);
}

.company-hero__inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.section {
  padding: 92px 0;
}

.section-label {
  margin: 0 0 18px;
  color: rgba(13, 13, 13, 0.52);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.company-hero h1,
.section-head h2 {
  margin: 0;
  color: var(--ink);
  font-weight: 900;
  letter-spacing: -0.04em;
}

.company-hero h1 {
  font-size: clamp(48px, 8vw, 88px);
  line-height: 1.04;
}

.section-head h2 {
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.12;
}

.section-head--center {
  text-align: center;
}

.section-head--light .section-label,
.section-head--light h2 {
  color: #f7f8f9;
}

.company-info-section {
  background: var(--charcoal);
  color: #f7f8f9;
}

.company-info-grid,
.company-about-grid {
  display: grid;
  grid-template-columns: minmax(240px, 0.38fr) minmax(0, 1fr);
  gap: clamp(36px, 6vw, 86px);
  align-items: start;
}

.company-profile-list {
  margin: 0;
  display: grid;
  border-top: 1px solid rgba(247, 248, 249, 0.16);
}

.company-profile-row {
  display: grid;
  grid-template-columns: minmax(150px, 0.28fr) minmax(0, 1fr);
  gap: 24px;
  padding: 26px 0;
  border-bottom: 1px solid rgba(247, 248, 249, 0.16);
}

.company-profile-row dt {
  color: rgba(247, 248, 249, 0.62);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.company-profile-row dd {
  margin: 0;
  color: rgba(247, 248, 249, 0.94);
  font-size: clamp(17px, 2vw, 22px);
  font-weight: 700;
  line-height: 1.75;
}

.company-profile-row dd span {
  color: rgba(247, 248, 249, 0.62);
  font-size: 0.78em;
  letter-spacing: 0.08em;
}

.company-about-section {
  background: var(--bg);
}

.company-copy {
  max-width: 820px;
  color: var(--muted);
  font-size: clamp(17px, 1.7vw, 21px);
  line-height: 2;
}

.company-copy p {
  margin: 0;
}

.company-copy p + p {
  margin-top: 22px;
}

.company-policy-section {
  background: #0d0d0d;
  color: #f7f8f9;
}

.company-policy-section .section-label,
.company-policy-section .section-head h2 {
  color: #f7f8f9;
}

.company-policy-section .section-label {
  opacity: 0.56;
}

.policy-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 46px;
  background: rgba(247, 248, 249, 0.16);
}

.policy-card {
  min-height: 300px;
  padding: 34px;
  background: #0d0d0d;
}

.policy-number {
  display: block;
  margin-bottom: 30px;
  color: rgba(247, 248, 249, 0.34);
  font-size: 48px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
}

.policy-card h3 {
  margin: 0;
  color: #f7f8f9;
  font-size: clamp(22px, 2.2vw, 30px);
  line-height: 1.32;
  letter-spacing: -0.03em;
}

.policy-card p {
  margin: 20px 0 0;
  color: rgba(247, 248, 249, 0.74);
  font-size: 16px;
  line-height: 1.9;
}

.site-footer {
  padding: 34px 0 42px;
  background: #0d0d0d;
  color: #f7f8f9;
  border-top: 1px solid rgba(247, 248, 249, 0.14);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.footer-brand-block {
  min-width: 240px;
}

.footer-brand,
.footer-brand:link,
.footer-brand:visited,
.footer-brand:hover,
.footer-brand:active {
  margin: 0;
  color: #ffffff;
  font-size: 14px;
  letter-spacing: 0.22em;
  font-weight: 800;
  line-height: 1.5;
  text-decoration: none;
}

.footer-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 10px 22px;
}

.footer-nav a {
  color: rgba(247, 248, 249, 0.72);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.6;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-nav a:hover {
  color: #ffffff;
}

@media (max-width: 800px) {
  body {
    padding-top: 76px;
  }

  .shell {
    width: calc(100vw - 28px);
  }

  .header-inner.shell,
  .footer-inner.shell {
    width: min(1320px, calc(100vw - 28px));
  }

  .header-inner {
    min-height: 76px;
    gap: 10px;
    align-items: center;
  }

  .site-logo {
    display: grid;
    grid-template-columns: 24px minmax(0, 1fr);
    column-gap: 8px;
    align-items: center;
    flex: 1 1 auto;
    min-width: 0;
  }

  .site-logo__mark {
    width: 24px;
    height: 24px;
    flex: 0 0 24px;
  }

  .site-logo__text {
    max-width: none;
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.08em;
    line-height: 1.15;
  }

  .header-actions {
    gap: 8px;
  }

  .header-cta {
    min-width: 128px;
    min-height: 46px;
    padding: 0 18px;
    border-radius: 12px;
    font-size: 13px;
  }

  .menu-toggle {
    width: 30px;
    height: 30px;
    flex: 0 0 30px;
  }

  .menu-toggle span {
    width: 18px;
  }

  .lp-menu {
    right: 14px;
    width: min(320px, calc(100vw - 28px));
  }

  .company-hero {
    min-height: 280px;
    padding: 44px 0 54px;
  }

  .company-hero h1 {
    font-size: clamp(42px, 14vw, 62px);
  }

  .section {
    padding: 58px 0;
  }

  .company-info-grid,
  .company-about-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .section-head h2 {
    font-size: clamp(30px, 9vw, 42px);
  }

  .company-profile-row {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 22px 0;
  }

  .company-profile-row dd {
    font-size: 17px;
  }

  .company-copy {
    font-size: 16px;
    line-height: 1.95;
  }

  .policy-list {
    grid-template-columns: 1fr;
    margin-top: 30px;
  }

  .policy-card {
    min-height: 0;
    padding: 28px 22px;
  }

  .policy-number {
    margin-bottom: 18px;
    font-size: 40px;
  }

  .policy-card h3 {
    font-size: 24px;
  }

  .site-footer {
    padding: 30px 0 36px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }

  .footer-nav {
    justify-content: flex-start;
    gap: 8px 18px;
  }
}