:root {
  --paper: #fbf7f0;
  --kinari: #f2ead9;
  --sumi: #2b2b2b;
  --ai: #2f4e8f;
  --akane: #c2553d;
  --usuzumi: #d8d2c7;
  --font-mincho: 'Noto Serif JP', 'Yu Mincho', serif;
  --font-gothic: 'Noto Sans JP', system-ui, sans-serif;
  --page-max: 1200px;
  --blog-content-max: 720px;
  --blog-card-radius: 20px;
  --blog-image-ratio: 1280 / 670;
  --space-page: clamp(20px, 6vw, 72px);
  --shadow-card: 0 14px 42px rgba(43, 43, 43, 0.08);
  --transition: 180ms ease;
}

.consent {
  position: fixed;
  z-index: 1000;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  display: flex;
  max-width: 56rem;
  margin: 0 auto;
  padding: 1rem;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--color-border, #d9d2c5);
  border-radius: 0.75rem;
  background: #fffdf8;
  box-shadow: 0 0.5rem 2rem rgb(32 42 58 / 18%);
}

.consent[hidden] {
  display: none;
}
.consent__text {
  margin: 0;
  font-size: 0.875rem;
}
.consent__link {
  color: inherit;
  text-decoration: underline;
}
.consent__actions {
  display: flex;
  flex: 0 0 auto;
  gap: 0.5rem;
}

.consent .btn {
  min-height: 40px;
  padding: 8px 14px;
  border: 1px solid var(--ai);
  border-radius: 8px;
  background: transparent;
  color: var(--ai);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
}

.consent .btn--primary {
  background: var(--ai);
  color: var(--paper);
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--sumi);
  font-family: var(--font-gothic);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

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

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 200;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--ai);
  color: var(--paper);
  transform: translateY(-160%);
}

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

:focus-visible {
  outline: 3px solid var(--akane);
  outline-offset: 4px;
}

.site-header {
  position: relative;
  border-bottom: 1px solid rgba(216, 210, 199, 0.8);
  background: var(--paper);
}

.site-header__inner {
  width: min(var(--page-max), calc(100% - var(--space-page) * 2));
  height: 80px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-mincho);
  font-size: 23px;
  font-weight: 600;
}

.brand::before {
  content: '';
  width: 22px;
  height: 25px;
  border: 2px solid var(--ai);
  border-radius: 4px;
  box-shadow: -6px -5px 0 -2px var(--ai);
}

.brand small {
  color: var(--ai);
  font-family: var(--font-gothic);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  font-weight: 500;
}

.site-nav a {
  border-bottom: 1px solid transparent;
  transition:
    color var(--transition),
    border-color var(--transition);
}

.site-nav a:hover {
  border-color: currentColor;
  color: var(--ai);
}

.site-nav__cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 20px;
  border: 1px solid var(--ai);
  border-radius: 10px;
  background: var(--ai);
  color: var(--paper);
  font-weight: 700;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    background var(--transition);
}

.site-nav__cta:hover,
.button:hover {
  background: #243f76;
  box-shadow: 0 8px 24px rgba(47, 78, 143, 0.2);
  transform: translateY(-2px);
}

.blog-hero {
  width: min(var(--page-max), calc(100% - var(--space-page) * 2));
  margin: 0 auto;
  padding: 84px 0 58px;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.6fr);
  gap: 64px;
  align-items: end;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--ai);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.24em;
}

.blog-hero h1,
.article-header h1 {
  margin: 0;
  font-family: var(--font-mincho);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: 0.02em;
  overflow-wrap: anywhere;
}

.blog-hero h1 {
  font-size: clamp(38px, 5vw, 64px);
}

.blog-hero__intro {
  margin: 0 0 5px;
  color: rgba(43, 43, 43, 0.74);
  font-family: var(--font-mincho);
  font-size: 17px;
  line-height: 2;
}

.article-list-section {
  padding: 54px 0 110px;
  background: linear-gradient(180deg, rgba(242, 234, 217, 0.7), rgba(251, 247, 240, 0));
}

.article-list-section__inner,
.state-gallery {
  width: min(var(--page-max), calc(100% - var(--space-page) * 2));
  margin: 0 auto;
}

.section-heading {
  margin: 0 0 30px;
  font-family: var(--font-mincho);
  font-size: clamp(25px, 3vw, 34px);
  font-weight: 600;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.article-card {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--usuzumi);
  border-radius: var(--blog-card-radius);
  background: rgba(251, 247, 240, 0.88);
  transition:
    border-color var(--transition),
    box-shadow var(--transition),
    transform var(--transition);
}

.article-card:hover,
.article-card:focus-within {
  border-color: rgba(47, 78, 143, 0.45);
  box-shadow: var(--shadow-card);
  transform: translateY(-4px);
}

.article-card__link {
  display: flex;
  height: 100%;
  flex-direction: column;
}

.article-card__media,
.media-fallback {
  aspect-ratio: var(--blog-image-ratio);
  overflow: hidden;
  background: var(--kinari);
}

.article-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 300ms ease;
}

.article-card:hover .article-card__media img {
  transform: scale(1.025);
}

.article-card__body {
  flex: 1;
  padding: 22px 22px 24px;
}

.article-card__meta,
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 7px 16px;
  margin: 0 0 12px;
  color: rgba(43, 43, 43, 0.62);
  font-size: 12px;
}

.article-card h2,
.article-card h3 {
  margin: 0 0 13px;
  font-family: var(--font-mincho);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.article-card__description {
  margin: 0;
  color: rgba(43, 43, 43, 0.74);
  font-size: 14px;
  line-height: 1.8;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.tag-list li {
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--kinari);
  color: var(--ai);
  font-size: 11px;
  font-weight: 500;
}

.breadcrumb {
  width: min(var(--page-max), calc(100% - var(--space-page) * 2));
  margin: 0 auto;
  padding: 30px 0 0;
  color: rgba(43, 43, 43, 0.62);
  font-size: 13px;
}

.breadcrumb ol {
  display: flex;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumb li:not(:last-child)::after {
  content: '/';
  margin-left: 9px;
  color: var(--usuzumi);
}

.article-header,
.article-body,
.related-articles {
  width: min(var(--blog-content-max), calc(100% - var(--space-page) * 2));
  margin-inline: auto;
}

.article-header {
  padding: 64px 0 42px;
}

.article-header h1 {
  margin-bottom: 22px;
  font-size: clamp(32px, 5vw, 52px);
}

.article-hero-image {
  width: min(1040px, calc(100% - var(--space-page) * 2));
  margin: 0 auto 64px;
  overflow: hidden;
  border-radius: 24px;
  background: var(--kinari);
}

.article-hero-image img {
  width: 100%;
  height: auto;
  aspect-ratio: var(--blog-image-ratio);
  object-fit: cover;
}

.article-body {
  font-size: 17px;
  line-height: 2.05;
}

.article-body > p {
  margin: 0 0 32px;
}

.article-body h2 {
  margin: 72px 0 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--usuzumi);
  font-family: var(--font-mincho);
  font-size: 29px;
  font-weight: 600;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.article-body h3 {
  margin: 46px 0 16px;
  color: var(--ai);
  font-family: var(--font-mincho);
  font-size: 21px;
}

.article-body ul {
  margin: 0 0 32px;
  padding-left: 1.4em;
}

.article-body li + li {
  margin-top: 8px;
}

.article-body blockquote {
  margin: 48px 0;
  padding: 25px 30px;
  border-left: 4px solid var(--ai);
  background: var(--kinari);
  font-family: var(--font-mincho);
  font-size: 19px;
  line-height: 1.9;
}

.article-figure {
  margin: 54px -80px;
}

.article-figure img {
  width: 100%;
  height: auto;
  border-radius: 18px;
}

.article-figure figcaption {
  margin-top: 12px;
  color: rgba(43, 43, 43, 0.58);
  font-size: 12px;
  text-align: center;
}

.source-note {
  padding: 20px 24px;
  border: 1px solid var(--usuzumi);
  border-radius: 12px;
  color: rgba(43, 43, 43, 0.72);
  font-size: 13px;
}

.blog-cta {
  margin: 72px 0;
  padding: 42px;
  border-radius: 20px;
  background: var(--ai);
  color: var(--paper);
  text-align: center;
}

.blog-cta h2 {
  margin: 0 0 14px;
  padding: 0;
  border: 0;
  color: inherit;
}

.blog-cta p {
  margin: 0 0 24px;
}

.blog-cta .button {
  border-color: var(--paper);
  background: var(--paper);
  color: var(--ai);
}

.related-articles {
  padding: 28px 0 100px;
}

.related-articles__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.state-gallery {
  padding: 64px 0 100px;
}

.state-case {
  margin-bottom: 56px;
}

.state-case > h2 {
  font-family: var(--font-mincho);
}

.empty-state,
.media-fallback {
  display: grid;
  place-items: center;
  text-align: center;
}

.empty-state {
  min-height: 280px;
  padding: 40px;
  border: 1px dashed var(--usuzumi);
  border-radius: var(--blog-card-radius);
  background: rgba(242, 234, 217, 0.45);
}

.empty-state h3 {
  margin: 0 0 8px;
  font-family: var(--font-mincho);
}

.empty-state p,
.media-fallback span {
  margin: 0;
  color: rgba(43, 43, 43, 0.62);
}

.media-fallback {
  padding: 20px;
}

.media-fallback span::before {
  content: '◇';
  display: block;
  margin-bottom: 8px;
  color: var(--ai);
  font-size: 30px;
}

.site-footer {
  padding: 48px var(--space-page);
  border-top: 1px solid var(--usuzumi);
  text-align: center;
}

.site-footer p {
  margin: 8px 0 0;
  color: rgba(43, 43, 43, 0.58);
  font-size: 12px;
}

@media (max-width: 900px) {
  .article-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .blog-hero {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .article-figure {
    margin-inline: 0;
  }
}

@media (max-width: 600px) {
  :root {
    --space-page: 20px;
    --blog-card-radius: 16px;
  }

  .site-header__inner {
    height: 68px;
  }

  .brand {
    gap: 8px;
    font-size: 20px;
  }

  .brand small,
  .site-nav > a:not(.site-nav__cta) {
    display: none;
  }

  .site-nav__cta {
    min-height: 40px;
    padding: 8px 13px;
    font-size: 12px;
  }

  .blog-hero {
    padding: 54px 0 42px;
  }

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

  .blog-hero__intro {
    font-size: 15px;
  }

  .article-list-section {
    padding: 40px 0 72px;
  }

  .article-grid,
  .related-articles__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .article-card__body {
    padding: 19px 18px 21px;
  }

  .breadcrumb {
    overflow: hidden;
    white-space: nowrap;
  }

  .breadcrumb li:last-child {
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .article-header {
    padding: 46px 0 30px;
  }

  .article-header h1 {
    font-size: 31px;
    line-height: 1.5;
  }

  .article-hero-image {
    border-radius: 0;
  }

  .article-body {
    font-size: 16px;
    line-height: 1.95;
  }

  .article-body h2 {
    margin-top: 58px;
    font-size: 24px;
  }

  .article-body blockquote {
    margin-inline: 0;
    padding: 21px 20px;
    font-size: 17px;
  }

  .blog-cta {
    padding: 32px 22px;
  }
}

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