:root {
  --color-primary: #cc2c24;
  --color-primary-dark: #a9231d;
  --color-text: #222222;
  --color-text-muted: #626262;
  --color-background: #ffffff;
  --color-background-subtle: #f7f7f7;
  --color-border: #d8d8d8;
  --color-placeholder: #e7e7e7;
  --color-placeholder-dark: #747474;
  --container: 75rem;
  --header-height: 4.5rem;
  --section-space: clamp(4rem, 8vw, 6rem);
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --transition: 180ms ease-out;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color: var(--color-text);
  background: var(--color-background);
  font-family: "Noto Sans JP", "Yu Gothic", "YuGothic", "Hiragino Kaku Gothic ProN", sans-serif;
  line-height: 1.75;
  scroll-padding-top: calc(var(--header-height) + 1rem);
}

body {
  margin: 0;
  min-width: 20rem;
  font-size: 1rem;
  overflow-wrap: anywhere;
}

small {
  font-size: 1rem;
}

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

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

a {
  color: inherit;
  text-decoration-thickness: 0.075em;
  text-underline-offset: 0.22em;
}

a:hover {
  color: var(--color-primary);
}

button,
summary {
  font: inherit;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

h1,
h2,
h3 {
  line-height: 1.35;
  letter-spacing: 0.015em;
}

h1 {
  margin-bottom: 1.5rem;
  font-size: clamp(2rem, 4.3vw, 4.5rem);
  letter-spacing: 0.02em;
}

h2 {
  margin-bottom: 1.25rem;
  font-size: clamp(1.75rem, 3vw, 3.25rem);
}

h3 {
  font-size: clamp(1.25rem, 1.8vw, 1.625rem);
}

:focus-visible {
  outline: 0.1875rem solid var(--color-primary);
  outline-offset: 0.1875rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  border: 0;
  white-space: nowrap;
}

.skip-link {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  padding: 0.75rem 1rem;
  color: #ffffff;
  background: var(--color-primary-dark);
  transform: translateY(-110%);
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(100% - (var(--gutter) * 2), var(--container));
  margin-inline: auto;
}

.breadcrumb {
  border-bottom: 0.0625rem solid var(--color-border);
  background: var(--color-background);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  min-height: 3.5rem;
  color: var(--color-text-muted);
  font-size: 1rem;
}

.breadcrumb li + li::before {
  margin-right: 0.5rem;
  color: var(--color-border);
  content: "/";
}

.breadcrumb [aria-current="page"] {
  color: var(--color-text);
  font-weight: 500;
}

.page-header {
  padding-block: clamp(3.5rem, 8vw, 6rem);
  border-bottom: 0.25rem solid var(--color-primary-dark);
  color: #ffffff;
  background: linear-gradient(
    110deg,
    var(--color-primary) 0%,
    var(--color-primary) 84%,
    var(--color-primary-dark) 84%,
    var(--color-primary-dark) 100%
  );
}

.page-header .container {
  padding-left: clamp(1rem, 3vw, 2.5rem);
  border-left: 0.25rem solid #ffffff;
}

.page-header .eyebrow {
  color: #ffffff;
}

.page-header h1 {
  margin-bottom: 1.25rem;
}

.page-header__lead {
  max-width: 46rem;
  margin-bottom: 0;
  color: #ffffff;
  font-size: clamp(1rem, 1.5vw, 1.125rem);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  border-bottom: 0.0625rem solid var(--color-border);
  background: rgba(255, 255, 255, 0.97);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 2rem, 90rem);
  height: 100%;
  margin-inline: auto;
}

.site-logo {
  display: inline-flex;
  flex: 0 0 auto;
  padding: 0.5rem 0;
}

.site-logo img {
  width: 8.75rem;
  height: auto;
}

.desktop-nav {
  display: none;
}

.mobile-nav > summary,
.nav-disclosure > summary,
.mobile-nav__nested > summary {
  list-style: none;
  cursor: pointer;
}

.mobile-nav > summary::-webkit-details-marker,
.nav-disclosure > summary::-webkit-details-marker,
.mobile-nav__nested > summary::-webkit-details-marker {
  display: none;
}

.mobile-nav > summary {
  display: grid;
  grid-template-columns: auto 1.5rem;
  gap: 0.625rem;
  align-items: center;
  min-height: 2.75rem;
  padding-inline: 0.25rem;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.mobile-nav__icon {
  display: grid;
  gap: 0.3125rem;
}

.mobile-nav__icon i {
  display: block;
  width: 1.5rem;
  height: 0.125rem;
  background: var(--color-text);
  transition: transform var(--transition), opacity var(--transition);
}

.mobile-nav[open] .mobile-nav__icon i:nth-child(1) {
  transform: translateY(0.4375rem) rotate(45deg);
}

.mobile-nav[open] .mobile-nav__icon i:nth-child(2) {
  opacity: 0;
}

.mobile-nav[open] .mobile-nav__icon i:nth-child(3) {
  transform: translateY(-0.4375rem) rotate(-45deg);
}

.mobile-nav__panel {
  position: fixed;
  inset: var(--header-height) 0 0;
  overflow-y: auto;
  border-top: 0.1875rem solid var(--color-primary);
  background: var(--color-background);
  overscroll-behavior: contain;
}

.mobile-nav__panel nav {
  width: min(100% - 2.5rem, 42rem);
  margin-inline: auto;
  padding: 1rem 0 3rem;
}

.mobile-nav__list > li {
  border-bottom: 0.0625rem solid var(--color-border);
}

.mobile-nav__list > li > a,
.mobile-nav__nested > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 3.75rem;
  font-weight: 700;
  text-decoration: none;
}

.disclosure-icon {
  position: relative;
  display: inline-block;
  width: 1rem;
  height: 1rem;
  margin-left: 0.5rem;
}

.disclosure-icon::before,
.disclosure-icon::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0.75rem;
  height: 0.0625rem;
  background: currentColor;
  content: "";
  transform: translate(-50%, -50%);
  transition: transform var(--transition);
}

.disclosure-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

details[open] > summary .disclosure-icon::after {
  transform: translate(-50%, -50%) rotate(0);
}

.mobile-nav__nested > div {
  padding: 0 0 1.5rem 1rem;
  border-left: 0.125rem solid var(--color-primary);
}

.mobile-nav__all {
  display: inline-block;
  margin-bottom: 1.25rem;
  color: var(--color-primary-dark);
  font-weight: 700;
}

.mobile-nav__nested section + section {
  margin-top: 1.25rem;
}

.mobile-nav__nested h2 {
  margin-bottom: 0.35rem;
  font-size: 1rem;
}

.mobile-nav__nested h2 a,
.mobile-nav__nested li a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
}

.mobile-nav__nested li a {
  color: var(--color-text-muted);
  font-size: 1rem;
}

.mobile-nav__cta {
  width: 100%;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border: 0.0625rem solid transparent;
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  transition: color var(--transition), background-color var(--transition), border-color var(--transition);
}

.button--primary {
  border-color: var(--color-primary);
  color: #ffffff;
  background: var(--color-primary);
}

.button--primary:hover {
  border-color: var(--color-primary-dark);
  color: #ffffff;
  background: var(--color-primary-dark);
}

.button--secondary {
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
  background: #ffffff;
}

.button--secondary:hover {
  color: #ffffff;
  background: var(--color-primary-dark);
}

.button--light {
  border-color: #ffffff;
  color: var(--color-primary-dark);
  background: #ffffff;
}

.button--light:hover {
  color: #ffffff;
  background: var(--color-primary-dark);
}

.service-card-button {
  width: 100%;
  margin-top: auto;
  gap: 0.75rem;
}

.service-card-button span[aria-hidden="true"] {
  font-size: 1.25rem;
  line-height: 1;
}

.hero {
  position: relative;
  display: grid;
  min-height: 48rem;
  overflow: hidden;
  background: var(--color-placeholder);
  isolation: isolate;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
  display: block;
  width: 100%;
  height: 100%;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center bottom;
}

.hero__inner {
  display: flex;
  align-items: flex-start;
  width: min(100% - (var(--gutter) * 2), var(--container));
  margin-inline: auto;
  padding-block: 1.5rem 4rem;
}

.hero__copy {
  width: min(100%, 48rem);
  padding: clamp(1.5rem, 4vw, 3.5rem);
  border-left: 0.375rem solid var(--color-primary);
  background: rgba(255, 255, 255, 0.88);
}

.eyebrow {
  margin-bottom: 0.75rem;
  color: var(--color-primary-dark);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.eyebrow--light {
  color: #ffffff;
}

.hero__lead {
  max-width: 38rem;
  margin-bottom: 2rem;
  font-size: clamp(1rem, 1.4vw, 1.125rem);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.section {
  padding-block: var(--section-space);
}

.section-heading {
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  padding-top: 1.25rem;
  border-top: 0.0625rem solid var(--color-border);
}

.section-heading > div {
  max-width: 50rem;
}

.section-heading__lead {
  max-width: 37.5rem;
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.service-grid,
.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
}

.service-card,
.content-card {
  min-width: 0;
  border: 0.0625rem solid var(--color-border);
  background: var(--color-background);
}

.media-placeholder {
  display: grid;
  place-items: center;
  overflow: hidden;
  color: var(--color-placeholder-dark);
  background:
    linear-gradient(135deg, transparent 0 48%, rgba(204, 44, 36, 0.1) 48% 52%, transparent 52%),
    var(--color-placeholder);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.media-placeholder--landscape {
  aspect-ratio: 16 / 9;
}

.media-placeholder--portrait {
  aspect-ratio: 4 / 5;
}

.service-card__image {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.service-card__body,
.content-card__body {
  padding: 1.5rem;
}

.service-card h3 {
  margin-bottom: 1rem;
}

.service-card h3 a {
  text-decoration: none;
}

.service-card__body > p {
  color: var(--color-text-muted);
}

.service-card__links {
  margin: 1.5rem 0;
  padding-top: 1rem;
  border-top: 0.0625rem solid var(--color-border);
}

.service-card__links a {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: space-between;
  font-size: 1rem;
  text-decoration: none;
}

.service-card__links a::after {
  color: var(--color-primary);
  content: "↗";
}

.text-link {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-primary-dark);
  font-weight: 700;
}

.section-action {
  margin-top: 2.5rem;
  text-align: right;
}

.contents {
  background: var(--color-background-subtle);
}

.category-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.category-links a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.5rem 1rem;
  border: 0.0625rem solid var(--color-border);
  background: #ffffff;
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
}

.category-links a:hover {
  border-color: var(--color-primary);
}

.content-card__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  color: var(--color-text-muted);
  font-size: 1rem;
}

.content-card__meta span:first-child {
  color: var(--color-primary-dark);
  font-weight: 700;
}

.content-card h3 {
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 1.125rem;
}

.news__layout {
  display: grid;
  gap: 2.5rem;
}

.news__heading h2 {
  margin-bottom: 1.5rem;
}

.news-list {
  border-top: 0.0625rem solid var(--color-text);
}

.news-list li {
  display: grid;
  gap: 0.5rem;
  padding: 1.25rem 0;
  border-bottom: 0.0625rem solid var(--color-border);
}

.news-list li > a {
  display: grid;
  gap: 0.5rem;
  color: inherit;
  text-decoration: none;
}

.news-list li > a:hover .news-list__title,
.news-list li > a:focus-visible .news-list__title {
  color: var(--color-primary-dark);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.news-list p {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0;
  font-size: 1rem;
}

.news-list__date {
  color: var(--color-text-muted);
}

.news-list__category {
  color: var(--color-primary-dark);
  font-weight: 700;
}

.news-list__title {
  color: var(--color-text-muted);
}

.about {
  background: var(--color-background-subtle);
}

.about__grid {
  display: grid;
  gap: clamp(2.5rem, 6vw, 5rem);
}

.about__image {
  width: min(100%, 32rem);
}

.about__portrait {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.about__image > p {
  margin: 0.75rem 0 0;
  font-size: 1rem;
  font-weight: 700;
}

.about__content {
  align-self: center;
}

.about__lead {
  max-width: 42rem;
  margin-bottom: 2rem;
  color: var(--color-text-muted);
  font-size: clamp(1rem, 1.5vw, 1.125rem);
}

.profile-preview {
  margin-bottom: 2rem;
  padding: 1.5rem;
  border: 0.0625rem solid var(--color-border);
  background: #ffffff;
}

.profile-preview__label {
  margin-bottom: 0.75rem;
  color: var(--color-primary-dark);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.profile-preview dl > div {
  display: grid;
  grid-template-columns: 8rem minmax(0, 1fr);
  gap: 1rem;
  padding: 0.625rem 0;
  border-top: 0.0625rem solid var(--color-border);
}

.profile-preview dt {
  font-weight: 700;
}

.profile-preview dd {
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.contact-cta {
  padding-block: clamp(3.5rem, 7vw, 5rem);
  color: #ffffff;
  background: var(--color-primary);
}

.contact-cta__inner {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.contact-cta h2 {
  margin-bottom: 1rem;
}

.contact-cta p:last-child {
  max-width: 43rem;
  margin-bottom: 0;
}

.site-footer {
  padding-top: clamp(3.5rem, 7vw, 5rem);
  border-top: 0.0625rem solid var(--color-border);
  background: #ffffff;
}

.site-footer__grid {
  display: grid;
  gap: 3rem;
}

.site-logo--footer {
  margin-bottom: 1.5rem;
}

.site-footer address {
  color: var(--color-text-muted);
  font-style: normal;
}

.site-footer address p {
  margin-bottom: 1rem;
}

.site-footer__nav {
  display: grid;
  gap: 2rem;
}

.site-footer__nav h2 {
  margin-bottom: 0.75rem;
  font-size: 1rem;
}

.site-footer__nav h2 a {
  text-decoration: none;
}

.site-footer__nav li a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  color: var(--color-text-muted);
  font-size: 1rem;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 1rem;
  margin-top: 3rem;
  padding-block: 1.5rem;
  border-top: 0.0625rem solid var(--color-border);
  font-size: 1rem;
}

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

.back-to-top {
  position: fixed;
  right: 1rem;
  bottom: calc(1rem + env(safe-area-inset-bottom));
  z-index: 90;
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  border: 0.0625rem solid var(--color-primary);
  color: var(--color-primary-dark);
  background: rgba(255, 255, 255, 0.96);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.3;
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.back-to-top__icon {
  display: grid;
  align-self: stretch;
  flex: 0 0 3rem;
  place-items: center;
  color: var(--color-background);
  background: var(--color-primary);
  transition: color 0.2s ease, background-color 0.2s ease;
}

.back-to-top__icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

.back-to-top__label {
  padding: 0.625rem 0.875rem;
}

.back-to-top:hover {
  border-color: var(--color-primary-dark);
  color: var(--color-background);
  background: var(--color-primary-dark);
}

.back-to-top:hover .back-to-top__icon {
  color: var(--color-primary-dark);
  background: var(--color-background);
}

@media (min-width: 42rem) {
  .service-grid,
  .content-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 48rem) {
  :root {
    --header-height: 5rem;
  }

  .hero {
    min-height: clamp(39rem, calc(100svh - var(--header-height)), 51rem);
  }

  .hero__media img {
    object-position: center right;
  }

  .hero__inner {
    align-items: center;
    padding-block: clamp(3rem, 7vw, 6rem);
  }

  .news__layout {
    grid-template-columns: minmax(15rem, 0.65fr) minmax(0, 1.35fr);
  }

  .news-list li {
    grid-template-columns: 12rem minmax(0, 1fr);
    align-items: center;
  }

  .news-list li > a {
    grid-column: 1 / -1;
    grid-template-columns: 12rem minmax(0, 1fr);
    align-items: center;
  }

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

  .about__grid {
    grid-template-columns: minmax(17rem, 0.8fr) minmax(0, 1.2fr);
  }

  .contact-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .site-footer__grid {
    grid-template-columns: minmax(16rem, 0.7fr) minmax(0, 1.3fr);
  }

  .back-to-top {
    right: 2rem;
    bottom: calc(2rem + env(safe-area-inset-bottom));
  }
}

@media (min-width: 64rem) {
  :root {
    --header-height: 5.5rem;
  }

  .mobile-nav {
    display: none;
  }

  .desktop-nav {
    display: flex;
    height: 100%;
    align-items: center;
    gap: 1.25rem;
  }

  .desktop-nav__list {
    display: flex;
    height: 100%;
    align-items: stretch;
  }

  .desktop-nav__list > li,
  .nav-disclosure {
    height: 100%;
  }

  .desktop-nav__list > li > a,
  .nav-disclosure > summary {
    display: flex;
    min-width: 6rem;
    height: 100%;
    align-items: center;
    justify-content: center;
    padding-inline: 0.75rem;
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
  }

  .nav-disclosure[open] > summary,
  .desktop-nav__list > li > a:hover {
    color: var(--color-primary-dark);
    background: var(--color-background-subtle);
  }

  .nav-dropdown {
    position: absolute;
    top: 100%;
    right: max(1rem, calc((100vw - 90rem) / 2));
    width: min(calc(100vw - 2rem), 52rem);
    padding: 2rem;
    border: 0.0625rem solid var(--color-border);
    border-top: 0.1875rem solid var(--color-primary);
    background: #ffffff;
  }

  .nav-dropdown__header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 0.0625rem solid var(--color-border);
  }

  .nav-dropdown__header p {
    margin-bottom: 0;
    font-size: 1.25rem;
    font-weight: 700;
  }

  .nav-dropdown__header a {
    color: var(--color-primary-dark);
    font-size: 1rem;
    font-weight: 700;
  }

  .nav-dropdown__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
  }

  .nav-dropdown h2 {
    margin-bottom: 0.5rem;
    font-size: 1rem;
  }

  .nav-dropdown h2 a,
  .nav-dropdown li a {
    display: inline-flex;
    min-height: 2.75rem;
    align-items: center;
  }

  .nav-dropdown li a {
    color: var(--color-text-muted);
    font-size: 1rem;
  }

  .nav-dropdown__links {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
  }

  .nav-dropdown__links a {
    display: flex;
    min-height: 3.5rem;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1rem;
    border: 0.0625rem solid var(--color-border);
    color: var(--color-text);
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
  }

  .nav-dropdown__links a::after {
    color: var(--color-primary);
    content: "→";
  }

  .site-header__cta {
    min-height: 3rem;
    padding-inline: 1.25rem;
    font-size: 1rem;
  }

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

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

@media (max-width: 27rem) {
  .site-header__inner {
    width: calc(100% - 1.25rem);
  }

  .hero__actions .button,
  .section-action .button,
  .contact-cta .button {
    width: 100%;
  }

  .profile-preview dl > div {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}