:root {
  color-scheme: light;
  --red: #b8342a;
  --deep-red: #84231f;
  --gold: #c99a4a;
  --cream: #fff7e8;
  --paper: #fffdf8;
  --ink: #2d211c;
  --muted: #746761;
  --line: #ead8ba;
  --rose: #f3c2b1;
  font-family: "Noto Serif SC", "Songti SC", "SimSun", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 5%, rgba(243, 194, 177, 0.38), transparent 28rem),
    linear-gradient(180deg, #fffaf0 0%, #fffdf8 42%, #fff7e8 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: 1.5rem;
  padding: 0.85rem clamp(1rem, 4vw, 4rem);
  background: rgba(255, 253, 248, 0.92);
  border-bottom: 1px solid rgba(201, 154, 74, 0.22);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 700;
  font-size: 1.1rem;
  white-space: nowrap;
}

.brand img {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 3vw, 2rem);
  color: var(--muted);
  font-size: 0.96rem;
}

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

.hero {
  min-height: calc(100vh - 4.2rem);
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(18rem, 0.9fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  padding: clamp(3rem, 8vw, 6rem) clamp(1.2rem, 5vw, 5.5rem);
}

.hero-copy {
  max-width: 48rem;
}

.eyebrow,
.section-label {
  margin: 0 0 1rem;
  color: var(--red);
  font-weight: 700;
  letter-spacing: 0;
}

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

h1 {
  margin-bottom: 1.5rem;
  font-size: clamp(2.3rem, 6vw, 5.8rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.lead {
  max-width: 42rem;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2.1rem;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.78rem 1.3rem;
  border-radius: 999px;
  font-weight: 700;
}

.primary-button {
  background: var(--red);
  color: #fff;
  box-shadow: 0 14px 30px rgba(184, 52, 42, 0.22);
}

.secondary-button {
  border: 1px solid var(--line);
  color: var(--deep-red);
  background: rgba(255, 253, 248, 0.75);
}

.hero-mark {
  display: flex;
  justify-content: center;
}

.hero-mark img {
  width: min(28rem, 82vw);
  aspect-ratio: 1;
  object-fit: contain;
  border-radius: 50%;
  box-shadow: 0 2rem 5rem rgba(132, 35, 31, 0.15);
}

section {
  padding: clamp(3.5rem, 8vw, 6rem) clamp(1.2rem, 5vw, 5.5rem);
}

.statement,
.service,
.members,
.activity,
.join {
  max-width: 74rem;
  margin: 0 auto;
}

.statement-grid,
.service-list,
.member-board,
.activity-layout {
  display: grid;
  gap: 1rem;
}

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

.statement article,
.service-list article,
.member-card,
.activity-card,
.contact-panel {
  border: 1px solid rgba(201, 154, 74, 0.28);
  background: rgba(255, 253, 248, 0.78);
  border-radius: 8px;
  padding: clamp(1.25rem, 3vw, 2rem);
}

.statement article {
  min-height: 12rem;
}

.statement h2,
.section-heading h2,
.join h2 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.18;
  letter-spacing: 0;
}

.statement p,
.service-list p,
.activity-card p,
.join p,
.footer {
  color: var(--muted);
  line-height: 1.8;
}

.section-heading {
  max-width: 48rem;
  margin-bottom: 2rem;
}

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

.service-list span {
  display: inline-flex;
  margin-bottom: 1.25rem;
  color: var(--gold);
  font-weight: 700;
}

.member-board {
  grid-template-columns: 1.15fr repeat(2, minmax(0, 0.92fr));
}

.member-card {
  min-height: 13rem;
}

.lead-member {
  background: linear-gradient(135deg, rgba(184, 52, 42, 0.1), rgba(255, 253, 248, 0.88));
}

.member-role {
  margin-bottom: 1rem;
  color: var(--red);
  font-weight: 700;
}

.member-card h3 {
  margin-bottom: 0.8rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--deep-red);
}

.member-note {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
  padding: 1rem 1.25rem;
  border: 1px dashed rgba(184, 52, 42, 0.35);
  border-radius: 8px;
  background: rgba(255, 247, 232, 0.72);
}

.member-note span {
  flex: 0 0 auto;
  color: var(--deep-red);
  font-weight: 700;
}

.member-note p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.activity-layout {
  grid-template-columns: 1.25fr 0.9fr 0.9fr;
  align-items: stretch;
}

.feature-card {
  display: grid;
  grid-template-columns: 9rem 1fr;
  align-items: center;
  gap: 1.25rem;
}

.feature-card img {
  width: 9rem;
  height: 9rem;
  object-fit: contain;
  border-radius: 50%;
}

.date {
  color: var(--red);
  font-weight: 700;
}

.join {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 20rem;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: clamp(2rem, 5vw, 4rem);
  background: linear-gradient(135deg, rgba(184, 52, 42, 0.08), rgba(201, 154, 74, 0.12));
  border: 1px solid rgba(201, 154, 74, 0.3);
  border-radius: 8px;
}

.contact-panel {
  background: var(--paper);
}

.contact-panel p {
  margin-bottom: 0.35rem;
  font-size: 0.95rem;
}

.contact-panel strong {
  display: block;
  margin-bottom: 1.2rem;
  color: var(--deep-red);
  font-size: 1.25rem;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem clamp(1.2rem, 5vw, 5.5rem);
  border-top: 1px solid rgba(201, 154, 74, 0.25);
  background: rgba(255, 253, 248, 0.78);
  font-size: 0.92rem;
}

.footer p {
  margin: 0;
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.25rem;
  }

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

  .hero {
    padding-top: 2.5rem;
  }

  .hero-mark {
    order: -1;
  }

  .hero-mark img {
    width: min(18rem, 76vw);
  }

  .statement-grid,
  .service-list,
  .member-board,
  .activity-layout {
    grid-template-columns: 1fr;
  }

  .member-note {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .footer {
    flex-direction: column;
  }
}