:root {
  --ink: #101623;
  --muted: #5f6978;
  --line: #d9dee8;
  --paper: #ffffff;
  --soft: #f5f7fb;
  --blue: #1f4ea3;
  --blue-dark: #10295b;
  --red: #d93644;
  --gold: #f0b429;
  --green: #18977c;
  --shadow: 0 24px 70px rgba(16, 22, 35, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  overflow-x: hidden;
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Hiragino Sans",
    "Yu Gothic",
    "YuGothic",
    sans-serif;
  line-height: 1.8;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(217, 222, 232, 0.9);
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 220px;
}

.brand img {
  width: 46px;
  height: 46px;
  object-fit: contain;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 0.96rem;
  line-height: 1.2;
}

.brand small {
  color: var(--muted);
  font-size: 0.74rem;
  line-height: 1.35;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 20px;
  color: #263244;
  font-size: 0.9rem;
  font-weight: 700;
}

.nav a {
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}

.nav a:hover {
  border-color: var(--red);
}

.mobile-menu {
  display: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.98fr);
  gap: clamp(32px, 6vw, 72px);
  align-items: center;
  padding: clamp(46px, 6vw, 76px) clamp(18px, 5vw, 72px) clamp(58px, 7vw, 88px);
  background:
    linear-gradient(120deg, rgba(245, 247, 251, 0.96), rgba(255, 255, 255, 0.82)),
    radial-gradient(circle at 95% 20%, rgba(217, 54, 68, 0.18), transparent 28%),
    radial-gradient(circle at 15% 88%, rgba(240, 180, 41, 0.2), transparent 30%);
}

.hero-copy {
  max-width: 760px;
  min-width: 0;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 22px;
  font-size: clamp(2.7rem, 6.3vw, 5.7rem);
  line-height: 1.04;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

h1 span {
  display: block;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.25rem;
  line-height: 1.35;
  letter-spacing: 0;
}

.lead {
  max-width: min(690px, calc(100vw - 48px));
  color: #384456;
  font-size: clamp(1.04rem, 1.7vw, 1.28rem);
  overflow-wrap: anywhere;
  word-break: break-word;
  line-break: anywhere;
}

.hero-actions,
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  line-height: 1.2;
  transition:
    transform 0.16s ease,
    box-shadow 0.16s ease,
    background 0.16s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: var(--blue);
  color: white;
  box-shadow: 0 12px 28px rgba(31, 78, 163, 0.24);
}

.button.primary:hover {
  background: var(--blue-dark);
}

.button.secondary {
  background: white;
  border-color: var(--line);
  color: var(--ink);
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 34px 0 0;
}

.hero-facts div {
  padding: 14px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.hero-facts dt {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
}

.hero-facts dd {
  margin: 2px 0 0;
  font-weight: 800;
}

.hero-visual {
  position: relative;
  min-height: 520px;
}

.main-photo {
  width: 100%;
  height: 520px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.visual-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 265px;
  padding: 14px 16px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 48px rgba(16, 22, 35, 0.16);
  font-weight: 800;
}

.visual-card img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.visual-card span {
  display: block;
  color: var(--muted);
  font-size: 0.83rem;
  font-weight: 700;
  line-height: 1.5;
}

.visual-card.top {
  top: 24px;
  left: -24px;
}

.visual-card.bottom {
  right: -18px;
  bottom: 30px;
  display: block;
}

.section {
  padding: clamp(64px, 8vw, 108px) clamp(18px, 5vw, 72px);
}

.section-heading {
  max-width: 850px;
  margin: 0 auto 42px;
  text-align: center;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
}

.section-heading.compact {
  margin-left: 0;
  text-align: left;
}

.intro {
  background: var(--ink);
  color: white;
}

.news {
  background: white;
}

.news-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  gap: 22px;
}

.featured-news-link,
.featured-news,
.news-list article,
.record-grid article,
.calendar-panel {
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 44px rgba(16, 22, 35, 0.08);
}

.featured-news-link {
  display: block;
  transition:
    transform 0.16s ease,
    box-shadow 0.16s ease;
}

.featured-news-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 54px rgba(16, 22, 35, 0.12);
}

.featured-news {
  height: 100%;
  padding: clamp(24px, 4vw, 38px);
  background:
    linear-gradient(140deg, rgba(31, 78, 163, 0.08), rgba(217, 54, 68, 0.08)),
    white;
  border: 0;
  box-shadow: none;
}

.featured-news time,
.news-list time,
.calendar-panel time {
  display: block;
  color: var(--blue);
  font-size: 0.84rem;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.featured-news h3 {
  margin-top: 10px;
  font-size: clamp(1.4rem, 2.4vw, 2.1rem);
}

.news-list {
  display: grid;
  gap: 14px;
}

.news-list article {
  padding: 22px;
}

.read-more {
  display: inline-flex;
  align-items: center;
  margin-top: 8px;
  color: var(--blue);
  font-weight: 900;
}

.read-more::after {
  content: "→";
  margin-left: 8px;
}

.featured-news p:last-child,
.news-list p,
.record-grid p,
.calendar-panel p {
  color: var(--muted);
}

.news-facts {
  display: grid;
  gap: 10px;
  margin: 20px 0;
}

.news-facts div {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid rgba(217, 222, 232, 0.92);
}

.news-facts div:last-child {
  border-bottom: 1px solid rgba(217, 222, 232, 0.92);
}

.news-facts dt {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 900;
}

.news-facts dd {
  margin: 0;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.article-page {
  background: #f6f8fb;
}

.article-hero {
  padding: clamp(40px, 6vw, 78px) clamp(20px, 5vw, 72px) clamp(44px, 6vw, 72px);
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.98), rgba(246, 248, 251, 0.92)),
    linear-gradient(90deg, rgba(31, 78, 163, 0.08), rgba(217, 54, 68, 0.04));
  border-bottom: 1px solid var(--line);
}

.article-hero-inner,
.article-body {
  max-width: 980px;
  margin: 0 auto;
}

.article-kicker {
  width: fit-content;
  margin: 0 0 18px;
  padding: 5px 11px;
  border-radius: 999px;
  background: rgba(31, 78, 163, 0.12);
  color: var(--blue);
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.article-hero h1 {
  max-width: 780px;
  margin-bottom: 14px;
  font-size: clamp(2.1rem, 4.2vw, 3.7rem);
  line-height: 1.1;
}

.article-subtitle {
  max-width: 760px;
  margin-bottom: 22px;
  color: #384456;
  font-size: clamp(1.05rem, 1.8vw, 1.28rem);
  font-weight: 800;
}

.article-meta,
.article-summary-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  color: var(--muted);
  font-weight: 800;
}

.article-kv {
  margin: clamp(28px, 4vw, 42px) 0 0;
  padding: clamp(14px, 2.4vw, 24px);
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 44px rgba(16, 22, 35, 0.08);
}

.article-kv img {
  width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 4px;
}

.article-body {
  padding: clamp(34px, 5vw, 64px) clamp(20px, 5vw, 72px);
}

.article-content {
  padding: clamp(28px, 4.6vw, 56px);
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 44px rgba(16, 22, 35, 0.08);
}

.article-summary {
  margin-bottom: 30px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.article-lead {
  max-width: 780px;
  margin-bottom: 22px;
  color: #384456;
  font-size: clamp(1.05rem, 1.8vw, 1.22rem);
  font-weight: 800;
}

.article-summary-list {
  margin: 0;
  padding: 0;
}

.article-summary-list div {
  min-width: min(100%, 190px);
  padding: 14px 16px;
  background: #f7f9fc;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.article-summary-list dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
}

.article-summary-list dd {
  margin: 2px 0 0;
  color: var(--ink);
  font-weight: 900;
}

.article-content section {
  margin-top: 38px;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}

.article-content h2 {
  position: relative;
  margin-bottom: 18px;
  padding-left: 16px;
  font-size: clamp(1.35rem, 2.2vw, 1.82rem);
}

.article-content h2::before {
  content: "";
  position: absolute;
  top: 0.28em;
  bottom: 0.28em;
  left: 0;
  width: 4px;
  border-radius: 999px;
  background: var(--blue);
}

.article-content h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.article-content p,
.article-content li {
  color: var(--muted);
}

.article-content p {
  margin-bottom: 18px;
}

.article-content ul {
  margin: 0;
  padding-left: 1.2em;
}

.article-pillars {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.article-pillars div {
  padding: 18px;
  background: #f7f9fc;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.article-pillars p {
  margin: 0;
}

.article-links {
  display: grid;
  gap: 8px;
}

.article-links a {
  color: var(--blue);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.back-link {
  display: inline-flex;
  margin-bottom: 20px;
  color: var(--blue);
  font-weight: 900;
}

.intro .eyebrow {
  color: var(--gold);
}

.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.intro-grid article {
  padding: 26px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
}

.intro-grid p {
  margin: 16px 0 0;
  color: rgba(255, 255, 255, 0.84);
}

.pill,
.target {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 12px;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(31, 78, 163, 0.12);
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
}

.pill.red {
  background: rgba(217, 54, 68, 0.14);
  color: #ff6b76;
}

.pill.gold {
  background: rgba(240, 180, 41, 0.18);
  color: #ffd166;
}

.activity-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.activity-card {
  display: grid;
  grid-template-rows: 210px 1fr;
  overflow: hidden;
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 44px rgba(16, 22, 35, 0.08);
}

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

.activity-card div {
  padding: 22px;
}

.activity-card p:last-child,
.member-grid p:last-child,
.split p,
.contact-copy p {
  color: var(--muted);
}

.members {
  background: var(--soft);
}

.records {
  background: #f7f9fc;
}

.record-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.record-grid article {
  padding: 24px;
}

.record-grid span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 18px;
  border-radius: 8px;
  background: var(--ink);
  color: white;
  font-weight: 900;
}

.member-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.member-grid article {
  padding: 20px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: center;
}

.member-grid img {
  width: min(100%, 210px);
  aspect-ratio: 1;
  margin: 0 auto 16px;
  border-radius: 8px;
  object-fit: cover;
}

.role {
  margin-bottom: 8px;
  color: var(--red);
  font-size: 0.9rem;
  font-weight: 800;
}

.about {
  background: white;
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
  gap: clamp(24px, 5vw, 58px);
  align-items: stretch;
}

.about-list,
.about-card {
  margin: 0;
  padding: clamp(24px, 4vw, 38px);
  background: #f7f9fc;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 44px rgba(16, 22, 35, 0.08);
}

.about-list {
  display: grid;
  gap: 0;
}

.about-list div {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.about-list div:first-child {
  padding-top: 0;
}

.about-list div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.about-list dt {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 900;
}

.about-list dd {
  margin: 0;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.about-list a,
.about-card a:not(.button) {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.about-card {
  background:
    linear-gradient(140deg, rgba(31, 78, 163, 0.08), rgba(24, 151, 124, 0.08)),
    white;
}

.about-card p:last-of-type {
  color: var(--muted);
}

.about-actions {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.56fr);
  gap: clamp(26px, 5vw, 72px);
  align-items: center;
  background:
    linear-gradient(110deg, rgba(31, 78, 163, 0.06), rgba(24, 151, 124, 0.07)),
    white;
}

.notice-box,
.calendar-panel {
  padding: clamp(24px, 4vw, 38px);
}

.calendar-panel {
  display: grid;
  gap: 16px;
}

.calendar-panel article {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.calendar-panel article:last-of-type {
  border-bottom: 0;
  padding-bottom: 0;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.78fr);
  gap: clamp(28px, 5vw, 72px);
  background: #f7f3ec;
}

.contact-routes {
  display: grid;
  gap: 16px;
  padding: clamp(22px, 4vw, 34px);
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.contact-routes article {
  display: grid;
  gap: 8px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.contact-routes article:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.contact-routes span {
  width: fit-content;
  padding: 6px 10px;
  border-radius: 999px;
  background: #e6edf8;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-routes h3,
.contact-routes p {
  margin: 0;
}

.contact-routes p {
  color: var(--muted);
  line-height: 1.8;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 26px clamp(18px, 5vw, 72px);
  background: var(--ink);
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.88rem;
}

.footer div {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer img {
  width: 38px;
  height: 38px;
  object-fit: contain;
  background: white;
  border-radius: 8px;
}

.footer p {
  margin: 0;
}

@media (max-width: 1020px) {
  .split,
  .about-layout,
  .contact,
  .news-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    grid-template-columns: minmax(0, 0.94fr) minmax(280px, 1fr);
    gap: clamp(24px, 4vw, 42px);
  }

  .hero-visual {
    min-height: auto;
  }

  .activity-grid,
  .record-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .member-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .article-pillars {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-header,
  .hero,
  .section {
    width: 100%;
    max-width: 100%;
    overflow: visible;
  }

  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
    padding: 14px 20px 18px;
  }

  .nav {
    display: none;
  }

  .mobile-menu {
    display: block;
    width: calc(100vw - 40px);
  }

  .mobile-menu summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 46px;
    padding: 9px 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: white;
    color: var(--ink);
    cursor: pointer;
    font-weight: 900;
    list-style: none;
  }

  .mobile-menu summary::-webkit-details-marker {
    display: none;
  }

  .mobile-menu summary::after {
    content: "+";
    color: var(--blue);
    font-size: 1.2rem;
    line-height: 1;
  }

  .mobile-menu[open] summary::after {
    content: "-";
  }

  .mobile-menu nav {
    display: grid;
    gap: 6px;
    margin-top: 8px;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: white;
  }

  .mobile-menu a {
    display: block;
    padding: 10px 12px;
    border-radius: 6px;
    color: #263244;
    font-size: 0.92rem;
    font-weight: 800;
  }

  .mobile-menu a:active,
  .mobile-menu a:hover {
    background: var(--soft);
  }

  h1 {
    font-size: clamp(2.1rem, 11vw, 3rem);
  }

  .article-hero h1 {
    font-size: clamp(1.85rem, 8vw, 2.6rem);
  }

  .article-hero {
    padding: 34px 20px 38px;
  }

  .article-content {
    padding: 24px;
  }

  .article-summary-list {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero,
  .section {
    padding-right: 20px;
    padding-left: 20px;
  }

  .hero-actions,
  .contact-links {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero-copy,
  .lead {
    width: 100%;
    max-width: 100%;
  }

  .lead {
    word-break: normal;
    overflow-wrap: anywhere;
  }

  .featured-news,
  .news-list article,
  .record-grid article,
  .calendar-panel,
  .activity-card,
  .member-grid article {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    overflow-wrap: anywhere;
    word-break: normal;
  }

  .featured-news h3,
  .news-list h3 {
    font-size: 1.24rem;
  }

  .news-facts div {
    grid-template-columns: 1fr;
    gap: 3px;
  }

  .hero-actions .button,
  .contact-links .button {
    width: 100%;
    max-width: 100%;
  }

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

  .hero-facts,
  .intro-grid,
  .activity-grid,
  .record-grid,
  .member-grid {
    grid-template-columns: 1fr;
  }

  .calendar-panel article {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .about-list div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .main-photo {
    height: 360px;
  }

  .visual-card {
    position: static;
    margin-top: 12px;
    max-width: none;
  }

  .button {
    width: 100%;
  }

  .footer,
  .footer div {
    align-items: flex-start;
    flex-direction: column;
  }
}