:root {
  --accent: #3f7fa8;
  --accent-deep: #2f6282;
  --accent-soft: #bfd6e4;
  --ink: #181411;
  --ink-2: #2a221d;
  --sub: #5f554d;
  --bg: #f5f0ea;
  --bg-2: #ede5dc;
  --panel: #fbf8f4;
  --panel-strong: #f2ebe3;
  --line: #d8c8bb;
  --gold: #98a9b7;
  --shadow: 0 18px 40px rgba(24, 16, 11, 0.12);
  --shadow-soft: 0 10px 24px rgba(24, 16, 11, 0.08);
  --max: 1180px;
  --radius: 10px;
  --radius-sm: 6px;
  --header-h: 84px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 20px);
}

body {
  margin: 0;
  font-family: "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #f6f1eb 0%, #f1ebe4 100%);
  line-height: 1.85;
  letter-spacing: 0.01em;
}

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

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

.container {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(245, 240, 234, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(114, 91, 71, 0.18);
  box-shadow: 0 4px 18px rgba(26, 18, 14, 0.04);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand img {
  height: 50px;
  width: auto;
  object-fit: contain;
}

.brand-text {
  font-size: 0.85rem;
  color: var(--sub);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  white-space: nowrap;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

.nav-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

.main-nav a,
.news-button {
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--sub);
  transition: 0.2s ease;
}

.main-nav a:hover,
.news-button:hover {
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink);
}

.news-button {
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: white;
  box-shadow: 0 10px 24px rgba(47, 98, 130, 0.22);
}

.hero {
  padding: 34px 0 28px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: stretch;
}

.hero-photo {
  position: relative;
  min-height: 460px;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow);
  background: #140f0c;
  border: 1px solid rgba(107, 87, 68, 0.18);
}

.hero-photo::after {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 10px;
  pointer-events: none;
}

.hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  filter: saturate(0.9) contrast(1.02);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(8, 7, 7, 0.1) 0%, rgba(8, 7, 7, 0.56) 100%),
    linear-gradient(90deg, rgba(16, 12, 10, 0.82) 0%, rgba(16, 12, 10, 0.24) 56%, rgba(16, 12, 10, 0.18) 100%);
}

.hero-copy {
  position: absolute;
  inset: auto auto 0 0;
  width: min(76%, 760px);
  padding: 40px;
  color: white;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  font-size: 0.8rem;
  margin-bottom: 18px;
  backdrop-filter: blur(8px);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(2.2rem, 5vw, 4.9rem);
  line-height: 1.04;
  letter-spacing: -0.04em;
  font-weight: 700;
}

.hero p.lead {
  margin: 0;
  font-size: clamp(1rem, 1.6vw, 1.22rem);
  color: rgba(255, 255, 255, 0.9);
  max-width: 34em;
}

.hero-side {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-content: start;
}

.card {
  background: linear-gradient(180deg, rgba(251, 248, 244, 0.98) 0%, rgba(245, 239, 232, 0.98) 100%);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(126, 102, 79, 0.16);
  position: relative;
  overflow: hidden;
}

.card::before,
.concept-panel::before,
.leader-card::before,
.video-card::before,
.idea-card::before,
.team-card::before,
.org-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--gold) 0%, var(--accent) 55%, rgba(255, 255, 255, 0) 100%);
  opacity: 0.92;
}

.card h2,
.section h2 {
  margin: 0 0 14px;
  font-size: clamp(1.55rem, 2vw, 2.1rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
  font-weight: 700;
}

.news-card {
  background: linear-gradient(180deg, #f9f4ee 0%, #f2ebe3 100%);
  border: 1px solid rgba(63, 127, 168, 0.16);
}

.news-card h2 {
  display: flex;
  align-items: center;
  gap: 10px;
}

.badge {
  display: inline-block;
  padding: 6px 11px;
  border-radius: 999px;
  background: rgba(63, 127, 168, 0.12);
  color: #355e79;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

.news-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.news-item {
  display: grid;
  grid-template-columns: 94px 1fr;
  gap: 12px;
  align-items: start;
  padding: 16px 0;
  border-top: 1px solid rgba(130, 108, 87, 0.16);
}

.news-item:first-child {
  border-top: none;
  padding-top: 6px;
}

.news-date {
  font-weight: 700;
  color: var(--accent-deep);
  font-size: 0.92rem;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

.news-title {
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink-2);
}

.news-desc {
  color: var(--sub);
  font-size: 0.95rem;
  margin-top: 3px;
}

.section {
  padding: 56px 0;
  position: relative;
}

.section.alt {
  background:
    linear-gradient(180deg, rgba(237, 229, 220, 0.74) 0%, rgba(245, 240, 234, 0.42) 100%),
    var(--bg-2);
  border-top: 1px solid rgba(130, 108, 87, 0.14);
  border-bottom: 1px solid rgba(130, 108, 87, 0.14);
}

.section-intro {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
  margin-bottom: 26px;
}

.section-copy {
  max-width: 780px;
  color: var(--sub);
}

.concept-highlight {
  font-size: clamp(1.18rem, 2vw, 1.7rem);
  line-height: 1.65;
  font-weight: 700;
  color: var(--ink);
  padding: 26px 28px;
  border-left: 4px solid var(--accent);
  background: linear-gradient(180deg, rgba(251, 248, 244, 1) 0%, rgba(243, 236, 228, 1) 100%);
  border-radius: 0 var(--radius) var(--radius) 0;
  box-shadow: var(--shadow-soft);
  margin: 0 0 24px;
}

.concept-photo-wrap {
  margin: 0 0 24px;
}

.concept-photo {
  width: 100%;
  border-radius: 10px;
  box-shadow: var(--shadow-soft);
  object-fit: cover;
}

.concept-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: start;
}

.concept-panel {
  background: linear-gradient(180deg, rgba(251, 248, 244, 1) 0%, rgba(244, 236, 227, 1) 100%);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(126, 102, 79, 0.16);
  position: relative;
  overflow: hidden;
}

.concept-panel p {
  margin: 0 0 1.05em;
}

.concept-panel p:last-child {
  margin-bottom: 0;
}

.concept-chip {
  display: inline-block;
  margin: 0 0 18px;
  padding: 14px 18px;
  background: linear-gradient(180deg, #f8f2eb 0%, #f2e8de 100%);
  border: 1px solid rgba(178, 150, 109, 0.2);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink-2);
}

.point-list {
  display: grid;
  gap: 14px;
  margin: 18px 0 0;
}

.point-item {
  padding: 16px 18px;
  background: linear-gradient(180deg, #f8f2eb 0%, #f2e8de 100%);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(178, 150, 109, 0.2);
  font-weight: 700;
}

.point-item-illustrated {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 16px;
  align-items: center;
}

.point-illustration {
  width: 88px;
  height: 88px;
  object-fit: contain;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.55);
  padding: 8px;
}

.point-text {
  line-height: 1.6;
}

.free-note {
  margin-top: 20px;
  padding: 18px 20px;
  background: #eef5f9;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(63, 127, 168, 0.24);
}

.video-intro-panel h3 {
  margin: 10px 0 10px;
  font-size: 1.5rem;
  line-height: 1.35;
}

.video-intro-panel p {
  margin: 0;
  color: var(--sub);
}

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

.leader-card {
  background: linear-gradient(180deg, rgba(251, 248, 244, 1) 0%, rgba(244, 236, 227, 1) 100%);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(126, 102, 79, 0.16);
  display: flex;
  flex-direction: column;
  position: relative;
}

.leader-photo {
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, #d9cec1, #f7f3ef);
  display: block;
  overflow: hidden;
  border-bottom: 1px solid rgba(126, 102, 79, 0.12);
}

.leader-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.leader-body {
  padding: 22px;
  display: grid;
  gap: 10px;
}

.leader-role {
  color: var(--accent-deep);
  font-weight: 800;
  font-size: 0.84rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

.leader-name {
  font-size: 1.34rem;
  line-height: 1.25;
  font-weight: 700;
  margin: 0;
}

.leader-body p {
  margin: 0;
  color: var(--sub);
  font-size: 0.96rem;
}

.leader-details {
  margin-top: 8px;
  border-top: 1px solid rgba(126, 102, 79, 0.14);
  padding-top: 12px;
}

.leader-details summary {
  cursor: pointer;
  list-style: none;
  font-weight: 800;
  color: var(--accent-deep);
  font-family: "Helvetica Neue", Arial, sans-serif;
}

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

.leader-details summary::after {
  content: "+";
  float: right;
  font-size: 1.1rem;
}

.leader-details[open] summary::after {
  content: "−";
}

.leader-message {
  margin-top: 14px;
  display: grid;
  gap: 0.9em;
}

.leader-message p {
  margin: 0;
  color: var(--sub);
}

.teams-panel,
.videos-grid {
  display: grid;
  gap: 20px;
}

.teams-note {
  margin: 0 0 20px;
  color: var(--sub);
}

.teams-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.team-card {
  background: linear-gradient(180deg, rgba(251, 248, 244, 1) 0%, rgba(244, 236, 227, 1) 100%);
  border: 1px solid rgba(126, 102, 79, 0.16);
  border-radius: var(--radius);
  min-height: 160px;
  padding: 20px;
  text-align: center;
  color: var(--sub);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.group-card {
  min-height: 100%;
  padding: 18px 18px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
}

.team-logo {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: #f5f2ee;
  border-radius: 6px;
  margin-bottom: 14px;
}

.group-card h3 {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.35;
  color: var(--ink-2);
}

.group-card p {
  margin: 4px 0 0;
  color: var(--ink-2);
  line-height: 1.5;
}

.team-link {
  display: inline-block;
  margin-top: auto;
  width: 100%;
  padding: 8px 12px;
  background: #b80000;
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.08em;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

.video-card {
  background: linear-gradient(180deg, rgba(251, 248, 244, 1) 0%, rgba(244, 236, 227, 1) 100%);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(126, 102, 79, 0.16);
  position: relative;
  overflow: hidden;
}

.video-card iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
  border-radius: 10px;
  margin-top: 16px;
  background: #000;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
}

.video-link-wrap {
  margin-top: 14px;
}

.video-link {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(63, 127, 168, 0.12);
  color: var(--accent-deep);
  font-weight: 700;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

.video-card h3,
.team-card h3 {
  margin: 0 0 8px;
  font-size: 1.2rem;
  line-height: 1.35;
  font-weight: 700;
}

.video-card p,
.team-card p,
.footer-copy {
  margin: 0;
  color: var(--sub);
}

.news-ideas {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 22px;
}

.idea-card {
  background: linear-gradient(180deg, rgba(251, 248, 244, 1) 0%, rgba(244, 236, 227, 1) 100%);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(126, 102, 79, 0.16);
  position: relative;
  overflow: hidden;
}

.idea-card h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
  font-weight: 700;
}

.event-image {
  width: 100%;
  border-radius: 8px;
  margin-bottom: 14px;
  box-shadow: var(--shadow-soft);
  object-fit: cover;
}

.org-card {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 24px;
  background: linear-gradient(180deg, rgba(251, 248, 244, 1) 0%, rgba(244, 236, 227, 1) 100%);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(126, 102, 79, 0.16);
  position: relative;
  overflow: hidden;
}

.org-name {
  margin: 0;
  font-size: clamp(1.5rem, 2.2vw, 2.2rem);
  line-height: 1.4;
  font-weight: 700;
  color: var(--ink-2);
}

.org-founded {
  margin: 10px 0 0;
  color: var(--sub);
}

.org-meta {
  display: grid;
  gap: 10px;
}

.org-meta p {
  margin: 0;
  color: var(--sub);
}

.footer {
  padding: 38px 0 56px;
  background: linear-gradient(180deg, #1f1915 0%, #17120f 100%);
  color: rgba(255, 255, 255, 0.92);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
}

.footer-logo {
  height: 54px;
  width: auto;
  object-fit: contain;
  filter: brightness(1.12) saturate(0.94);
}

.muted {
  color: var(--sub);
}

.accent {
  color: var(--accent-deep);
}

@media (max-width: 1100px) {
  .hero-grid,
  .concept-grid,
  .leaders-grid,
  .news-ideas,
  .teams-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .hero-photo {
    min-height: 420px;
  }

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

  .news-ideas {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 760px) {
  :root {
    --header-h: auto;
  }

  body {
    font-size: 16px;
  }

  .container {
    width: min(calc(100% - 24px), var(--max));
  }

  .site-header {
    position: sticky;
    top: 0;
  }

  .header-inner {
    min-height: auto;
    padding: 12px 0 14px;
    display: grid;
    gap: 12px;
    align-items: start;
  }

.brand {
  gap: 8px;
  align-items: center;
}

.brand img {
  height: 42px;
}


.brand-text {
  display: block;
  font-size: 0.72rem;
  line-height: 1.35;
  letter-spacing: 0.06em;
  white-space: normal;
  color: var(--sub);
}

  .nav-wrap {
    display: grid;
    gap: 12px;
    width: 100%;
  }

  .main-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 14px;
    width: 100%;
  }

  .main-nav a {
    padding: 0;
    border-radius: 0;
    background: transparent;
    font-size: 0.98rem;
    line-height: 1.4;
    color: var(--sub);
  }

  .main-nav a:hover {
    background: transparent;
  }

  .news-button {
    width: 100%;
    text-align: center;
    padding: 14px 18px;
    font-size: 1rem;
    border-radius: 999px;
  }

  .hero {
  padding: 18px 0 20px;
}

.hero-grid {
  grid-template-columns: 1fr;
  gap: 16px;
}

.hero-photo {
  min-height: 0;
  aspect-ratio: 16 / 9;
  border-radius: 14px;
}


.hero-photo::after {
  inset: 10px;
}

.hero-photo img {
  object-fit: cover;
  object-position: center 28%;
}

  .hero-copy {
    width: 100%;
    padding: 20px;
  }

  .hero-kicker {
    font-size: 0.74rem;
    margin-bottom: 12px;
  }

  .hero h1 {
    font-size: clamp(2rem, 8vw, 2.8rem);
    line-height: 1.08;
    margin-bottom: 10px;
  }

  .hero p.lead {
    font-size: 0.98rem;
    line-height: 1.6;
  }

  .hero-side {
    grid-template-columns: 1fr;
    gap: 14px;
  }



  .card,
  .concept-panel,
  .video-card,
  .idea-card,
  .org-card {
    padding: 20px;
  }

  .news-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .section {
    padding: 38px 0;
  }

  .section-intro {
    display: grid;
    gap: 10px;
    align-items: start;
    margin-bottom: 18px;
  }

  .section-copy {
    max-width: none;
    font-size: 0.95rem;
    line-height: 1.7;
  }

  .concept-highlight {
    padding: 18px 18px;
    font-size: 1.08rem;
    line-height: 1.7;
  }

  .concept-grid,
  .leaders-grid,
  .teams-grid,
  .news-ideas {
    grid-template-columns: 1fr;
  }

  .point-item-illustrated {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .point-illustration {
    margin: 0 auto;
  }

  .video-card iframe {
    margin-top: 14px;
  }

  .org-card {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    display: grid;
    gap: 14px;
    align-items: start;
  }
}