:root {
  --ink: #554a51;
  --muted-ink: #81777d;
  --paper: #fff7df;
  --white: #ffffff;
  --line: #eadfc7;
  --orange: #ff7a2b;
  --orange-dark: #db5c13;
  --pink: #f36aaa;
  --sky: #5ec7f4;
  --mint: #7ce1cf;
  --yellow: #ffe24f;
  --green: #2f8b6d;
  --shadow: 0 20px 54px rgba(85, 74, 81, 0.13);
  --soft-shadow: 0 10px 30px rgba(85, 74, 81, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 12px 5vw;
  background: rgba(255, 252, 239, 0.94);
  border-bottom: 1px solid rgba(234, 223, 199, 0.86);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  width: 178px;
  height: 50px;
  overflow: hidden;
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.9rem;
  font-weight: 700;
}

.nav a {
  border-bottom: 2px solid transparent;
  text-decoration: none;
}

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

.nav-cta {
  padding: 9px 14px;
  border-bottom: 0 !important;
  border-radius: 8px;
  background: var(--orange);
  color: var(--white);
  font-weight: 700;
  box-shadow: 0 8px 18px rgba(255, 122, 43, 0.24);
}

.hero {
  position: relative;
  min-height: 640px;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 0.88fr);
  gap: 32px;
  align-items: center;
  overflow: hidden;
  padding: 72px 5vw 76px;
  background:
    radial-gradient(circle at 18% 18%, rgba(124, 225, 207, 0.58), transparent 26%),
    radial-gradient(circle at 84% 20%, rgba(255, 226, 79, 0.72), transparent 30%),
    linear-gradient(135deg, #f6ffd1 0%, #fff9ef 44%, #ffd063 100%);
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  z-index: 0;
  pointer-events: none;
}

.hero::before {
  width: 142px;
  height: 142px;
  left: 9vw;
  bottom: 62px;
  border: 10px solid var(--sky);
  transform: rotate(45deg);
  opacity: 0.65;
}

.hero::after {
  width: 150px;
  height: 112px;
  right: 18vw;
  top: 92px;
  background:
    radial-gradient(circle, var(--pink) 0 5px, transparent 6px) 0 0 / 24px 24px;
  opacity: 0.42;
}

.hero-copy,
.hero-visual {
  position: relative;
  z-index: 1;
}

.hero-copy {
  width: min(720px, 100%);
}

.hero-logo {
  display: block;
  width: min(100%, 560px);
  height: clamp(138px, 18vw, 190px);
  margin: 0 0 22px;
  object-fit: cover;
  object-position: center;
}

.hero-visual img {
  display: block;
  width: min(100%, 680px);
  height: auto;
  border: 8px solid rgba(255, 255, 255, 0.74);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.eyebrow,
.section-kicker {
  margin: 0 0 10px;
  color: var(--orange-dark);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

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

h1 {
  margin-bottom: 18px;
  color: var(--orange);
  font-size: clamp(4.6rem, 12vw, 7.5rem);
  font-weight: 950;
  line-height: 0.9;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: 2.15rem;
  line-height: 1.3;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.1rem;
  line-height: 1.45;
  letter-spacing: 0;
}

.lead {
  max-width: 680px;
  margin-bottom: 28px;
  color: var(--ink);
  font-size: 1.24rem;
  font-weight: 700;
  line-height: 1.85;
}

.hero-actions,
.cta-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 12px 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-size: 0.96rem;
  font-weight: 600;
  line-height: 1.4;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

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

.button.primary {
  background: var(--orange);
  color: var(--white);
  box-shadow: var(--shadow);
}

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

.button.secondary {
  background: rgba(255, 255, 255, 0.72);
  border-color: rgba(85, 74, 81, 0.2);
  color: var(--ink);
}

.hero-note {
  max-width: 560px;
  margin: 16px 0 0;
  color: var(--muted-ink);
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.7;
}

.hero-note a {
  color: var(--orange-dark);
  font-weight: 700;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.quick-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--line);
  background: #fffdf7;
}

.fact {
  min-height: 110px;
  padding: 24px 5vw;
  border-right: 1px solid var(--line);
}

.fact:last-child {
  border-right: 0;
}

.fact-number,
.fact-label {
  display: block;
}

.fact-number {
  color: var(--orange);
  font-size: 1.5rem;
  font-weight: 900;
  line-height: 1.2;
}

.fact-label {
  margin-top: 6px;
  color: var(--muted-ink);
  font-weight: 700;
}

.section {
  padding: 76px 5vw;
}

section[id] {
  scroll-margin-top: 88px;
}

.section.muted {
  background: #e9f9f5;
}

.section-inner {
  max-width: 1120px;
  margin: 0 auto;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.5fr);
  gap: 56px;
  align-items: start;
}

.body-copy p,
.join-box p,
.section-heading p {
  color: var(--muted-ink);
}

.body-copy p:last-child,
.join-box p:last-child,
.section-heading p:last-child {
  margin-bottom: 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 30px;
}

.concept {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 16% 26%, rgba(94, 199, 244, 0.22), transparent 26%),
    radial-gradient(circle at 84% 18%, rgba(255, 226, 79, 0.5), transparent 24%),
    linear-gradient(135deg, #fffdf5 0%, #f0fffb 56%, #fff1ba 100%);
}

.concept::before {
  content: "";
  position: absolute;
  top: 60px;
  right: 7vw;
  width: 128px;
  height: 128px;
  border: 12px solid var(--pink);
  transform: rotate(45deg);
  opacity: 0.32;
}

.mission-vision {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 34px;
  margin-bottom: 28px;
}

.mission-panel {
  min-height: 212px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 30px 34px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.4);
}

.mission-statement {
  margin-bottom: 34px;
  color: var(--ink);
  font-size: clamp(1.22rem, 1.82vw, 1.52rem);
  font-weight: 800;
  line-height: 1.5;
}

.mission-panel h2 {
  margin-bottom: 0;
  color: rgba(85, 74, 81, 0.86);
  font-size: clamp(2.15rem, 4vw, 3.5rem);
  line-height: 1;
}

.mission-caption {
  position: relative;
  z-index: 1;
  max-width: 820px;
  margin: 0 0 30px;
  color: var(--muted-ink);
  font-weight: 700;
}

.value-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.value-card {
  position: relative;
  min-height: 246px;
  padding: 24px;
  overflow: hidden;
  border: 2px solid rgba(85, 74, 81, 0.08);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: var(--soft-shadow);
}

.value-card::after {
  content: "";
  position: absolute;
  right: -28px;
  bottom: -34px;
  width: 96px;
  height: 96px;
  background: var(--yellow);
  transform: rotate(45deg);
  opacity: 0.68;
}

.value-card:nth-child(2)::after {
  background: var(--sky);
}

.value-card:nth-child(3)::after {
  background: var(--pink);
}

.value-card:nth-child(4)::after {
  background: var(--mint);
}

.value-number {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 20px;
  border-radius: 50%;
  background: var(--orange);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 900;
}

.value-card h3 {
  font-size: 1.05rem;
}

.value-card p {
  position: relative;
  z-index: 1;
  margin-bottom: 0;
  color: var(--muted-ink);
}

.activity-grid,
.member-grid {
  display: grid;
  gap: 16px;
}

.activity-grid {
  grid-template-columns: repeat(4, 1fr);
}

.activity-card,
.member-card {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--soft-shadow);
}

.activity-card {
  min-height: 238px;
  padding: 22px;
  border-top: 6px solid var(--yellow);
}

.activity-card:nth-child(2) {
  border-top-color: var(--sky);
}

.activity-card:nth-child(3) {
  border-top-color: var(--pink);
}

.activity-card:nth-child(4) {
  border-top-color: var(--mint);
}

.activity-card p,
.member-card p {
  margin-bottom: 0;
  color: var(--muted-ink);
}

.icon {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-bottom: 18px;
  border-radius: 8px;
  background: #e8f6ff;
  color: #1489c7;
  font-weight: 900;
}

.activity-card:nth-child(2) .icon {
  background: #fff3d8;
  color: var(--orange-dark);
}

.activity-card:nth-child(3) .icon {
  background: #e9fff8;
  color: var(--green);
}

.activity-card:nth-child(4) .icon {
  background: #ffe4f0;
  color: #c43677;
}

.note-section {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 12% 24%, rgba(255, 226, 79, 0.5), transparent 22%),
    radial-gradient(circle at 90% 20%, rgba(124, 225, 207, 0.22), transparent 24%),
    #fffdf7;
}

.note-panel {
  display: grid;
  grid-template-columns: minmax(220px, 0.78fr) minmax(0, 1.35fr);
  gap: 48px;
  align-items: center;
}

.note-copy {
  padding-left: 28px;
  border-left: 8px solid var(--yellow);
}

.note-copy p {
  max-width: 680px;
  color: var(--muted-ink);
}

.note-copy .button {
  margin-top: 8px;
}

.join-box {
  padding: 28px;
  border-left: 8px solid var(--orange);
  border-radius: 0 8px 8px 0;
  background: var(--white);
  box-shadow: var(--soft-shadow);
}

.join-box ul {
  margin: 18px 0;
  padding-left: 1.2em;
}

.join-box li {
  margin: 8px 0;
}

.join-actions {
  margin-top: 22px;
}

.partner {
  background:
    radial-gradient(circle at 12% 20%, rgba(243, 106, 170, 0.16), transparent 24%),
    radial-gradient(circle at 88% 16%, rgba(94, 199, 244, 0.18), transparent 22%),
    #fffdf7;
}

.partner-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 34px;
  align-items: stretch;
}

.partner-copy {
  min-width: 0;
  padding: 34px;
  border-left: 8px solid var(--pink);
  border-radius: 0 8px 8px 0;
  background: var(--white);
  box-shadow: var(--soft-shadow);
}

.partner-copy p {
  color: var(--muted-ink);
}

.partner-note {
  margin-top: 18px;
  padding: 16px 18px;
  border: 1px solid rgba(243, 106, 170, 0.28);
  border-radius: 8px;
  background: #fff8fb;
}

.partner-note span {
  display: block;
  margin-bottom: 5px;
  color: var(--ink);
  font-weight: 800;
}

.partner-note p {
  margin-bottom: 0;
  font-size: 0.94rem;
}

.partner-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 24px;
}

.text-link {
  color: var(--orange-dark);
  font-weight: 800;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.partner-points {
  display: grid;
  gap: 16px;
}

.partner-points article {
  position: relative;
  min-height: 180px;
  padding: 24px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--soft-shadow);
}

.partner-points article::after {
  content: "";
  position: absolute;
  right: -24px;
  bottom: -28px;
  width: 82px;
  height: 82px;
  background: var(--mint);
  transform: rotate(45deg);
  opacity: 0.7;
}

.partner-points article:nth-child(2)::after {
  background: var(--sky);
}

.partner-points span {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 14px;
  border-radius: 50%;
  background: var(--pink);
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 800;
}

.partner-points article:nth-child(2) span {
  background: var(--sky);
}

.partner-points p {
  position: relative;
  z-index: 1;
  margin-bottom: 0;
  color: var(--muted-ink);
}

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

.member-card {
  position: relative;
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  column-gap: 16px;
  row-gap: 4px;
  min-height: 238px;
  padding: 22px;
  overflow: hidden;
}

.member-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 5px;
  background: var(--orange);
}

.member-card:nth-child(3n)::before {
  background: var(--sky);
}

.member-card:nth-child(4n)::before {
  background: var(--pink);
}

.avatar,
.member-photo {
  width: 58px;
  height: 58px;
  grid-row: span 2;
  margin-bottom: 0;
  border-radius: 50%;
}

.avatar {
  display: grid;
  place-items: center;
  background: var(--ink);
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 900;
}

.member-photo {
  display: block;
  object-fit: cover;
  object-position: center;
  border: 3px solid var(--white);
  background: var(--white);
  box-shadow: 0 8px 18px rgba(85, 74, 81, 0.15);
}

.member-photo-sayaka {
  object-position: 42% center;
}

.member-photo-akiriza {
  object-position: center 18%;
}

.member-card h3 {
  margin-bottom: 2px;
  padding-top: 2px;
}

.member-card:nth-child(2n) .avatar {
  background: var(--sky);
}

.member-card:nth-child(3n) .avatar {
  background: var(--pink);
}

.role {
  align-self: start;
  display: inline-block;
  width: fit-content;
  max-width: 100%;
  margin-bottom: 12px;
  padding: 4px 9px;
  border-radius: 999px;
  background: #fff1da;
  color: var(--ink) !important;
  font-size: 0.82rem;
  font-weight: 800;
  line-height: 1.5;
}

.member-card > p:not(.role) {
  grid-column: 1 / -1;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.cta-section {
  padding: 76px 5vw;
  background:
    radial-gradient(circle at 84% 18%, rgba(255, 226, 79, 0.58), transparent 22%),
    linear-gradient(135deg, var(--orange) 0%, #ff9d2d 72%, #ffd760 100%);
  color: var(--ink);
}

.cta-inner {
  max-width: 960px;
  margin: 0 auto;
}

.cta-inner .section-kicker,
.cta-inner p {
  color: var(--ink);
}

.cta-inner h2,
.cta-inner p {
  width: 100%;
}

.cta-inner p {
  max-width: 720px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button.secondary.light {
  background: rgba(255, 255, 255, 0.82);
  border-color: rgba(85, 74, 81, 0.18);
  color: var(--ink);
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 5vw;
  background: var(--ink);
  color: var(--white);
  font-size: 0.9rem;
}

.footer p {
  margin-bottom: 0;
}

.footer a {
  color: var(--white);
  font-weight: 800;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px;
}

@media (max-width: 980px) {
  .nav {
    display: none;
  }

  .brand {
    width: 158px;
    height: 44px;
  }

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

  .hero-visual {
    max-width: 620px;
    margin-top: 10px;
  }

  h1 {
    font-size: 4rem;
  }

  h2 {
    font-size: 1.85rem;
  }

  .two-column,
  .note-panel,
  .partner-panel,
  .mission-vision,
  .activity-grid {
    grid-template-columns: 1fr;
  }

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

  .activity-card,
  .member-card {
    min-height: auto;
  }
}

@media (max-width: 720px) {
  body {
    font-size: 15px;
  }

  .site-header {
    min-height: 66px;
  }

  .brand {
    width: 144px;
    height: 40px;
  }

  .hero {
    padding: 58px 6vw 54px;
  }

  .hero::before {
    width: 86px;
    height: 86px;
    left: auto;
    right: -18px;
    bottom: 38px;
    border-width: 7px;
  }

  .hero::after {
    right: -20px;
    top: 120px;
    opacity: 0.32;
  }

  h1 {
    font-size: 4rem;
  }

  .hero-logo {
    height: 112px;
    margin-bottom: 18px;
  }

  .lead {
    font-size: 1.02rem;
  }

  .mission-panel {
    min-height: 176px;
    padding: 24px;
  }

  .mission-statement {
    font-size: 1.16rem;
  }

  .button {
    width: 100%;
  }

  .partner-copy {
    padding: 26px;
  }

  .note-copy {
    padding-left: 20px;
  }

  .partner-actions,
  .cta-actions {
    width: 100%;
  }

  .quick-facts,
  .value-grid,
  .member-grid {
    grid-template-columns: 1fr;
  }

  .fact {
    min-height: 92px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .section,
  .cta-section {
    padding: 64px 6vw;
  }

  .member-card {
    grid-template-columns: 52px minmax(0, 1fr);
    padding: 20px;
  }

  .avatar,
  .member-photo {
    width: 52px;
    height: 52px;
  }

  .join-box {
    padding: 22px;
  }

  .footer {
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}