:root {
  --navy: #07162d;
  --navy-2: #0d2342;
  --navy-3: #132f55;
  --gold: #b9914b;
  --gold-2: #d7bd83;
  --white: #ffffff;
  --paper: #f6f7f9;
  --gray: #697180;
  --gray-2: #aeb5bf;
  --line: rgba(7, 22, 45, 0.14);
  --shadow: 0 24px 70px rgba(7, 22, 45, 0.16);
  --container: min(1120px, calc(100vw - 48px));
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--navy);
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0;
  overflow-x: hidden;
  overflow-wrap: break-word;
}

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

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

button,
input,
textarea {
  font: inherit;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 100;
  background: var(--white);
  color: var(--navy);
  padding: 10px 14px;
  border-radius: 4px;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 16px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  color: var(--white);
  transition: background 0.25s ease, box-shadow 0.25s ease, color 0.25s ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  background: rgba(255, 255, 255, 0.96);
  color: var(--navy);
  box-shadow: 0 10px 30px rgba(7, 22, 45, 0.08);
  backdrop-filter: blur(16px);
}

.header-inner {
  width: min(1200px, calc(100vw - 40px));
  height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  line-height: 1.3;
  white-space: nowrap;
}

.brand img,
.footer-brand img {
  object-fit: contain;
  flex: 0 0 auto;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(215, 189, 131, 0.45);
  border-radius: 50%;
  padding: 3px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 14px;
  font-weight: 600;
}

.site-nav a {
  opacity: 0.92;
}

.site-nav a:hover {
  opacity: 1;
}

.nav-cta {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid currentColor;
  border-radius: 4px;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
}

.hero {
  position: relative;
  min-height: 760px;
  height: 100svh;
  max-height: 980px;
  overflow: hidden;
  background: var(--navy);
  color: var(--white);
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7, 22, 45, 0.88) 0%, rgba(7, 22, 45, 0.58) 42%, rgba(7, 22, 45, 0.18) 76%),
    linear-gradient(180deg, rgba(7, 22, 45, 0.18) 0%, rgba(7, 22, 45, 0.1) 58%, rgba(7, 22, 45, 0.7) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(1200px, calc(100vw - 48px));
  min-height: inherit;
  height: 100%;
  margin: 0 auto;
  padding: 128px 0 58px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hero-copy {
  max-width: min(720px, 100%);
  padding-top: clamp(40px, 8vh, 110px);
}

.hero h1 {
  margin: 0;
  font-family: "Noto Serif JP", "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(38px, 5.7vw, 76px);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: 0;
}

.hero h1 span {
  display: block;
  width: max-content;
  max-width: 100%;
  white-space: nowrap;
}

.hero-copy p {
  max-width: 620px;
  margin: 28px 0 0;
  font-size: clamp(16px, 1.45vw, 20px);
  line-height: 2;
  color: rgba(255, 255, 255, 0.88);
  overflow-wrap: break-word;
  word-break: normal;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.button {
  min-width: 174px;
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border-radius: 4px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

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

.button-primary {
  background: var(--gold);
  color: var(--white);
  border: 1px solid var(--gold);
}

.button-primary:hover {
  background: #a6803f;
  border-color: #a6803f;
}

.button-secondary {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.72);
}

.button-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
}

.hero-facts {
  margin: 0;
  width: min(680px, 100%);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(255, 255, 255, 0.34);
  border-bottom: 1px solid rgba(255, 255, 255, 0.34);
}

.hero-facts div {
  padding: 18px 22px;
  border-right: 1px solid rgba(255, 255, 255, 0.24);
}

.hero-facts div:first-child {
  padding-left: 0;
}

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

.hero-facts dt {
  color: var(--gold-2);
  font-family: Georgia, serif;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-facts dd {
  margin: 4px 0 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  white-space: nowrap;
}

.section {
  padding: 112px 0;
}

.section-label {
  margin: 0 0 14px;
  color: var(--gold);
  font-family: Georgia, serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h2,
h3,
p {
  overflow-wrap: break-word;
  word-break: normal;
}

.split > *,
.media-grid > *,
.representative-layout > *,
.evidence-layout > *,
.company-layout > *,
.faq-layout > *,
.service-list > * {
  min-width: 0;
}

h2 {
  margin: 0;
  font-family: "Noto Serif JP", "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(30px, 4.2vw, 50px);
  font-weight: 700;
  line-height: 1.36;
  letter-spacing: 0;
  text-wrap: balance;
}

h2 span {
  display: block;
}

.section-copy h2,
.evidence-layout h2 {
  font-size: clamp(30px, 3vw, 42px);
}

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

p {
  margin: 0;
  color: #334055;
}

.split {
  display: grid;
  grid-template-columns: minmax(300px, 0.88fr) minmax(0, 1.12fr);
  gap: clamp(40px, 8vw, 92px);
  align-items: start;
}

.lead-block {
  display: grid;
  gap: 22px;
  font-size: 17px;
}

.approach {
  background: var(--paper);
}

.media-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 34px;
  align-items: stretch;
}

.wide-media,
.portrait,
.evidence figure,
.company-intro figure {
  margin: 0;
  overflow: hidden;
  background: #dfe4ea;
}

.wide-media {
  min-height: 520px;
}

.wide-media img,
.evidence figure img,
.company-intro figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.approach-panel {
  background: var(--navy);
  color: var(--white);
  padding: clamp(34px, 5vw, 58px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.approach-panel h2 {
  font-size: clamp(27px, 2.6vw, 38px);
}

.approach-panel p {
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.82);
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 30px 0 0;
  display: grid;
  gap: 14px;
}

.check-list li {
  position: relative;
  padding-left: 24px;
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.65;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.82em;
  width: 9px;
  height: 9px;
  background: var(--gold);
  transform: rotate(45deg);
}

.representative-layout {
  display: grid;
  grid-template-columns: minmax(280px, 420px) minmax(0, 1fr);
  gap: clamp(42px, 7vw, 90px);
  align-items: center;
}

.portrait {
  aspect-ratio: 0.75;
  box-shadow: var(--shadow);
}

.portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.representative-copy {
  max-width: min(650px, 100%);
}

.representative-title {
  margin-top: 12px;
  color: var(--gold);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
}

.representative-copy .message {
  margin-top: 26px;
  color: var(--navy);
  font-size: 18px;
}

.representative-copy p + p {
  margin-top: 20px;
}

.signature {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 3px;
}

.signature span {
  color: var(--gray);
  font-size: 14px;
}

.signature small {
  color: var(--gray);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.5;
}

.signature strong {
  font-size: 24px;
  line-height: 1.45;
}

.services {
  background: var(--navy);
  color: var(--white);
}

.services p {
  color: rgba(255, 255, 255, 0.76);
}

.section-heading {
  max-width: 760px;
}

.section-heading p:last-child {
  margin-top: 18px;
  font-size: 17px;
}

.service-list {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.service-list article {
  min-height: 176px;
  padding: 30px 34px 32px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  display: grid;
  grid-template-columns: 58px 1fr;
  column-gap: 20px;
}

.service-list article:nth-child(odd) {
  border-right: 1px solid rgba(255, 255, 255, 0.16);
}

.service-list article:nth-child(even) {
  padding-left: 34px;
}

.service-list span {
  color: var(--gold-2);
  font-family: Georgia, serif;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
}

.service-list h3 {
  color: var(--white);
}

.service-list p {
  grid-column: 2;
  margin-top: 10px;
}

.people {
  background: var(--white);
}

.people-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: clamp(38px, 6vw, 72px);
  align-items: center;
}

.people-layout figure {
  margin: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #dfe4ea;
  box-shadow: var(--shadow);
}

.people-layout img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.people-layout p:not(.section-label) {
  margin-top: 22px;
  font-size: 17px;
}

.team-heading {
  font-size: clamp(30px, 3.2vw, 42px);
}

.team-heading span {
  width: max-content;
  max-width: 100%;
  white-space: nowrap;
}

.evidence {
  background: linear-gradient(180deg, var(--paper), var(--white));
}

.evidence-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(36px, 6vw, 72px);
  align-items: center;
}

.evidence-layout p:not(.section-label) {
  margin-top: 22px;
  font-size: 17px;
}

.evidence figure {
  aspect-ratio: 16 / 9;
  box-shadow: var(--shadow);
}

.company-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.86fr) minmax(420px, 1.14fr);
  gap: clamp(42px, 6vw, 76px);
  align-items: start;
}

.company-intro p:not(.section-label) {
  margin-top: 18px;
}

.company-intro figure {
  margin-top: 34px;
  aspect-ratio: 16 / 10;
}

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

.company-table div {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.company-table dt {
  color: var(--gray);
  font-weight: 700;
}

.company-table dd {
  margin: 0;
  color: var(--navy);
  font-weight: 600;
  line-height: 1.8;
}

.faq {
  background: var(--paper);
}

.faq-layout {
  display: grid;
  grid-template-columns: minmax(240px, 0.7fr) minmax(420px, 1.3fr);
  gap: clamp(36px, 7vw, 88px);
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  background: var(--white);
  border: 1px solid rgba(7, 22, 45, 0.1);
  border-radius: 6px;
  box-shadow: 0 12px 32px rgba(7, 22, 45, 0.05);
}

summary {
  cursor: pointer;
  padding: 20px 54px 20px 22px;
  color: var(--navy);
  font-weight: 700;
  line-height: 1.55;
  list-style: none;
  position: relative;
  word-break: keep-all;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "";
  position: absolute;
  right: 22px;
  top: 50%;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--gold);
  border-bottom: 2px solid var(--gold);
  transform: translateY(-65%) rotate(45deg);
  transition: transform 0.2s ease;
}

details[open] summary::after {
  transform: translateY(-35%) rotate(225deg);
}

details p {
  padding: 0 22px 22px;
}

.contact {
  position: relative;
  min-height: 540px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: var(--navy);
  color: var(--white);
}

.contact-media {
  position: absolute;
  inset: 0;
}

.contact-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.38;
}

.contact::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7, 22, 45, 0.94), rgba(7, 22, 45, 0.72));
}

.contact-content {
  position: relative;
  z-index: 1;
  padding: 104px 0;
  max-width: 820px;
  margin-left: max(24px, calc((100vw - 1120px) / 2));
}

.contact h2 {
  max-width: 760px;
}

.contact p:not(.section-label) {
  max-width: 700px;
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 17px;
}

.contact .button {
  margin-top: 34px;
}

.site-footer {
  background: #050e1e;
  color: var(--white);
  padding: 48px 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: start;
}

.footer-inner p {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 14px;
}

.footer-inner nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 16px 22px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.footer-inner small {
  grid-column: 1 / -1;
  color: rgba(255, 255, 255, 0.48);
}

@media (max-width: 920px) {
  .header-inner {
    height: 68px;
  }

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

  .nav-toggle {
    width: 44px;
    height: 44px;
    display: inline-grid;
    place-items: center;
    gap: 0;
    border: 0;
    border-radius: 4px;
    background: transparent;
    color: currentColor;
    padding: 11px;
  }

  .nav-toggle span:not(.sr-only) {
    width: 22px;
    height: 2px;
    background: currentColor;
    display: block;
  }

  .site-nav {
    position: absolute;
    left: 20px;
    right: 20px;
    top: 68px;
    display: none;
    padding: 18px;
    background: rgba(255, 255, 255, 0.98);
    color: var(--navy);
    border-radius: 6px;
    box-shadow: var(--shadow);
  }

  .site-header.is-open .site-nav {
    display: grid;
    gap: 6px;
  }

  .site-nav a {
    min-height: 42px;
    display: flex;
    align-items: center;
  }

  .nav-cta {
    margin-top: 6px;
    background: var(--gold);
    color: var(--white);
    border-color: var(--gold);
  }

  .hero {
    min-height: 720px;
    height: auto;
  }

  .hero-image {
    object-position: 58% center;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(7, 22, 45, 0.9) 0%, rgba(7, 22, 45, 0.6) 58%, rgba(7, 22, 45, 0.3) 100%),
      linear-gradient(180deg, rgba(7, 22, 45, 0.18) 0%, rgba(7, 22, 45, 0.28) 54%, rgba(7, 22, 45, 0.82) 100%);
  }

  .hero-content {
    min-height: 720px;
    padding-top: 104px;
  }

  .hero-copy {
    padding-top: 70px;
  }

  .split,
  .media-grid,
  .representative-layout,
  .people-layout,
  .evidence-layout,
  .company-layout,
  .faq-layout {
    grid-template-columns: 1fr;
  }

  .wide-media {
    min-height: auto;
    aspect-ratio: 16 / 10;
  }

  .approach-panel {
    margin-top: -1px;
  }

  .service-list {
    grid-template-columns: 1fr;
  }

  .service-list article,
  .service-list article:nth-child(even) {
    padding-left: 0;
    padding-right: 0;
    border-right: 0;
  }

  .company-table div {
    grid-template-columns: 128px 1fr;
  }
}

@media (max-width: 640px) {
  :root {
    --container: min(100vw - 32px, 1120px);
  }

  body {
    font-size: 15px;
    line-height: 1.78;
  }

  h2,
  h3,
  p,
  summary,
  li,
  dt,
  dd,
  span,
  strong {
    line-break: strict;
    overflow-wrap: break-word;
    word-break: normal;
  }

  .hero h1 span {
    overflow-wrap: normal;
    word-break: keep-all;
  }

  .team-heading {
    font-size: clamp(25px, 6.8vw, 34px);
  }

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

  .brand {
    gap: 9px;
    min-width: 0;
  }

  .brand span {
    white-space: normal;
    line-height: 1.25;
  }

  .brand img {
    width: 32px;
    height: 31px;
  }

  .hero {
    min-height: 700px;
  }

  .hero-content {
    width: calc(100vw - 32px);
    min-height: 700px;
    padding: 92px 0 30px;
  }

  .hero-copy {
    padding-top: 58px;
  }

  .hero h1 {
    font-size: clamp(28px, 8.8vw, 34px);
    line-height: 1.24;
    max-width: 100%;
  }

  .hero-copy p {
    max-width: 23em;
    font-size: 15px;
    line-height: 1.9;
  }

  .hero-actions {
    gap: 10px;
  }

  .button {
    min-width: 154px;
    min-height: 50px;
    padding: 0 18px;
    font-size: 14px;
  }

  .hero-facts {
    grid-template-columns: 1fr;
  }

  .hero-facts div,
  .hero-facts div:first-child {
    padding: 12px 0;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  }

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

  .section {
    padding: 74px 0;
  }

  h2 {
    font-size: clamp(27px, 8vw, 34px);
    line-height: 1.42;
  }

  h3 {
    font-size: 19px;
  }

  .lead-block,
  .evidence-layout p:not(.section-label),
  .contact p:not(.section-label) {
    font-size: 15px;
  }

  .media-grid {
    gap: 0;
  }

  .approach-panel {
    padding: 30px 22px;
  }

  .representative-layout {
    gap: 34px;
  }

  .portrait {
    width: min(100%, 360px);
  }

  .representative-copy .message {
    font-size: 16px;
  }

  .service-list {
    margin-top: 36px;
  }

  .service-list article {
    min-height: 0;
    grid-template-columns: 44px 1fr;
    column-gap: 14px;
    padding-top: 24px;
    padding-bottom: 24px;
  }

  .service-list p {
    margin-top: 8px;
  }

  .company-table div {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 16px 0;
  }

  .company-table dt {
    font-size: 13px;
  }

  summary {
    padding: 18px 48px 18px 18px;
  }

  details p {
    padding: 0 18px 18px;
  }

  .contact {
    min-height: 500px;
  }

  .contact-content {
    width: var(--container);
    padding: 78px 0;
    margin: 0 auto;
  }

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

  .footer-inner nav {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}