.community-page {
  --community-green: #149667;
  --community-ink: #10271f;
  --community-muted: #62756d;
  --community-line: rgba(20, 90, 65, .13);
  background:
    radial-gradient(circle at 8% 15%, rgba(67, 196, 142, .09), transparent 26%),
    #f7f9f6;
  color: var(--community-ink);
}

.community-hero {
  position: relative;
  overflow: hidden;
  padding: 76px 0 68px;
  border-bottom: 1px solid var(--community-line);
  background: linear-gradient(135deg, #e9f6ef 0%, #f7faf7 58%, #eef8f3 100%);
}

.community-hero::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  right: -150px;
  top: -210px;
  border: 1px solid rgba(20, 150, 103, .09);
  border-radius: 50%;
  box-shadow: 0 0 0 70px rgba(20, 150, 103, .025), 0 0 0 140px rgba(20, 150, 103, .018);
}

.community-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
  gap: 86px;
  align-items: center;
}

.community-kicker {
  color: var(--community-green);
  font-size: 10px;
  font-weight: 850;
  letter-spacing: 2px;
}

.community-kicker.warm { color: #b96b3a; }

.community-hero h1 {
  max-width: 760px;
  margin: 15px 0 17px;
  font-family: var(--serif);
  font-size: clamp(42px, 5vw, 66px);
  line-height: 1.08;
  letter-spacing: -2px;
}

.community-hero-copy > p {
  max-width: 720px;
  margin: 0;
  color: var(--community-muted);
  font-size: 16px;
  line-height: 1.9;
}

.community-hero-actions { display: flex; gap: 11px; margin-top: 30px; }

.about-manifesto,
.guideline-principle {
  padding: 31px;
  border: 1px solid rgba(20, 150, 103, .18);
  border-radius: 22px;
  background: rgba(255, 255, 255, .72);
  box-shadow: 0 22px 55px rgba(31, 87, 66, .08);
  backdrop-filter: blur(12px);
}

.about-manifesto > span,
.guideline-principle > span {
  color: var(--community-green);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1px;
}

.about-manifesto strong,
.guideline-principle strong {
  display: block;
  margin: 17px 0 13px;
  font-family: var(--serif);
  font-size: 28px;
  line-height: 1.35;
}

.about-manifesto p { margin: 0; color: var(--community-muted); font-size: 12px; line-height: 1.8; }

.community-content { padding-top: 38px; padding-bottom: 78px; }
.section-surface { border: 1px solid var(--community-line); border-radius: 20px; background: #fff; box-shadow: 0 16px 44px rgba(27, 66, 51, .045); }

.about-intro {
  display: grid;
  grid-template-columns: minmax(280px, .75fr) minmax(0, 1.25fr);
  gap: 60px;
  align-items: center;
  padding: 35px 39px;
}

.about-intro h2,
.about-system-card h2,
.about-boundary h2,
.community-cta h2 {
  margin: 8px 0 0;
  font-family: var(--serif);
  font-size: 30px;
  line-height: 1.25;
}

.about-intro > p { margin: 0; color: var(--community-muted); font-size: 14px; line-height: 1.9; }

.about-feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 17px;
}

.about-feature-card {
  min-height: 268px;
  padding: 26px;
  border: 1px solid var(--community-line);
  border-radius: 18px;
  background: #fff;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}

.about-feature-card:hover { transform: translateY(-4px); border-color: rgba(20, 150, 103, .28); box-shadow: 0 18px 40px rgba(27, 66, 51, .08); }
.about-feature-icon { width: 43px; height: 43px; display: grid; place-items: center; margin-bottom: 29px; border-radius: 13px; background: #e0f5ea; color: #12835b; font-size: 12px; font-weight: 850; }
.about-feature-card small { color: #91a199; font-size: 8px; font-weight: 800; letter-spacing: 1.4px; }
.about-feature-card h2 { margin: 7px 0 10px; font-size: 19px; }
.about-feature-card p { margin: 0; color: var(--community-muted); font-size: 12px; line-height: 1.8; }

.about-identity { display: grid; grid-template-columns: minmax(260px, .7fr) minmax(0, 1.3fr); gap: 48px; align-items: center; margin-top: 17px; padding: 34px 38px; }
.about-identity h2 { margin: 8px 0 0; font-family: var(--serif); font-size: 30px; line-height: 1.25; }
.about-identity > p { margin: 0; color: var(--community-muted); font-size: 13px; line-height: 1.85; }
.community-check-list { display: grid; gap: 9px; margin: 22px 0 0; padding: 0; list-style: none; }
.community-check-list li { position: relative; padding-left: 25px; color: #42584f; font-size: 12px; }
.community-check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--community-green); font-weight: 900; }
.community-text-link { display: inline-flex; margin-top: 16px; color: var(--community-green); font-size: 12px; font-weight: 800; }

.about-boundary {
  display: grid;
  grid-template-columns: minmax(230px, .6fr) minmax(0, 1.4fr);
  gap: 48px;
  align-items: center;
  margin-top: 17px;
  padding: 34px 38px;
  border: 1px solid #ecdac9;
  border-radius: 20px;
  background: #fffaf3;
}

.about-boundary > p { margin: 0; color: #6f5a49; font-size: 13px; line-height: 1.85; }
.community-cta { display: flex; align-items: center; justify-content: space-between; gap: 30px; margin-top: 17px; padding: 31px 38px; border-radius: 20px; background: #123c2f; color: #fff; }
.community-cta span { color: #91cbb1; font-size: 10px; font-weight: 800; letter-spacing: 1px; }
.community-cta h2 { font-size: 27px; }
.community-cta .button { flex: 0 0 auto; }

.community-hero-compact { padding-top: 62px; padding-bottom: 56px; }
.community-hero-compact h1 { font-size: clamp(38px, 4.5vw, 56px); }
.guideline-principle strong { margin-bottom: 0; font-size: 25px; }

.guidelines-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 24px;
  align-items: start;
  padding-top: 34px;
  padding-bottom: 78px;
}

.guidelines-list { overflow: hidden; border: 1px solid var(--community-line); border-radius: 20px; background: #fff; box-shadow: 0 16px 44px rgba(27, 66, 51, .045); }
.guideline-section { display: grid; grid-template-columns: 54px minmax(0, 1fr); gap: 20px; padding: 34px 38px; scroll-margin-top: 96px; }
.guideline-section + .guideline-section { border-top: 1px solid var(--community-line); }
.guideline-number { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 13px; background: #e5f6ed; color: var(--community-green); font-size: 10px; font-weight: 850; }
.guideline-section h2 { margin: 2px 0 10px; font-family: var(--serif); font-size: 25px; }
.guideline-section p { margin: 0; color: #465c53; font-size: 13px; line-height: 1.85; }
.guideline-section ul { display: grid; gap: 8px; margin: 18px 0 0; padding-left: 18px; color: var(--community-muted); font-size: 12px; line-height: 1.7; }
.guideline-section li::marker { color: var(--community-green); }
.guidelines-sidebar { position: sticky; top: 92px; display: grid; gap: 14px; }
.guideline-index, .guideline-cost-card { padding: 25px; }
.guideline-index h2 { margin: 7px 0 15px; font-family: var(--serif); font-size: 23px; }
.guideline-index a { display: block; padding: 9px 0; border-top: 1px solid #edf1ee; color: #53675e; font-size: 11px; transition: color .18s, padding-left .18s; }
.guideline-index a:hover { padding-left: 4px; color: var(--community-green); }
.guideline-cost-card > span, .guideline-risk-card > span { font-size: 11px; font-weight: 850; }
.guideline-cost-card dl { margin: 14px 0; }
.guideline-cost-card dl div { display: flex; justify-content: space-between; padding: 9px 0; border-top: 1px solid #edf1ee; font-size: 11px; }
.guideline-cost-card dt { color: var(--community-muted); }
.guideline-cost-card dd { margin: 0; color: var(--community-green); font-weight: 850; }
.guideline-cost-card small { display: block; color: #899890; font-size: 9px; line-height: 1.65; }
.guideline-risk-card { padding: 23px 25px; border: 1px solid #ecdac9; border-radius: 18px; background: #fff9f1; }
.guideline-risk-card span { color: #a66539; }
.guideline-risk-card p { margin: 9px 0 0; color: #765f4d; font-size: 11px; line-height: 1.75; }

@media (prefers-reduced-motion: reduce) {
  .about-feature-card { transition: none; }
}

@media (max-width: 920px) {
  .community-hero-grid { grid-template-columns: 1fr; gap: 31px; }
  .community-hero h1 { max-width: 800px; }
  .about-manifesto, .guideline-principle { max-width: 600px; }
  .about-feature-grid { grid-template-columns: 1fr 1fr; }
  .guidelines-layout { grid-template-columns: 1fr; }
  .guidelines-sidebar { position: static; grid-template-columns: 1fr 1fr; }
  .guideline-index { display: none; }
}

@media (max-width: 620px) {
  .community-hero { padding: 49px 0 45px; }
  .community-hero h1 { font-size: 39px; letter-spacing: -1.2px; }
  .community-hero-copy > p { font-size: 14px; }
  .community-hero-actions { flex-direction: column; align-items: stretch; }
  .community-hero-actions .button { text-align: center; }
  .about-manifesto, .guideline-principle { padding: 25px; }
  .about-intro, .about-boundary { grid-template-columns: 1fr; gap: 18px; padding: 27px 25px; }
  .about-feature-grid { grid-template-columns: 1fr; }
  .about-identity { grid-template-columns: 1fr; gap: 18px; padding: 27px 25px; }
  .about-feature-card { min-height: 0; }
  .about-system-card { min-height: 0; padding: 28px 25px; }
  .community-cta { align-items: flex-start; flex-direction: column; padding: 27px 25px; }
  .community-cta .button { width: 100%; text-align: center; }
  .guideline-section { grid-template-columns: 1fr; gap: 13px; padding: 28px 25px; }
  .guidelines-sidebar { grid-template-columns: 1fr; }
}