:root {
  --bg: #ffffff;
  --surface: #f0f7f4;
  --fg: #1a1a1a;
  --fg-2: #4a4a4a;
  --muted: #6e6e6e;
  --border: #d4e8e0;
  --accent: #8BC34A;
  --accent-dark: #1B5E20;
  --text-on-dark: #ffffff;
  --font-display: "Noto Serif SC", "Source Han Serif SC", Georgia, serif;
  --font-body: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --text-xs: 12px;
  --text-sm: 14px;
  --text-base: 17px;
  --text-lg: 21px;
  --text-xl: 28px;
  --text-2xl: 40px;
  --text-3xl: 56px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-pill: 980px;
  --motion-base: 220ms;
  --ease-standard: cubic-bezier(0.28, 0, 0.22, 1);
  --container-max: 1200px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
}
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 22px; }

/* Nav */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 56px;
  background: rgba(250,248,243,0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid #e8e4dc;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.nav-inner {
  max-width: var(--container-max); margin: 0 auto;
  height: 100%; padding: 0 22px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-brand {
  display: flex; align-items: center; gap: 10px;
  color: #1B5E20; font-weight: 600; font-size: 17px;
  text-decoration: none;
}
.nav-brand .mark {
  width: 26px; height: 26px; border-radius: 7px;
  background: #8BC34A; color: #1a1a1a;
  display: grid; place-items: center;
  font-size: 13px; font-weight: 700;
}
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a {
  color: #33691E; font-size: 14px; text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover { color: #1B5E20; }
.nav-links a.active { color: #1B5E20; font-weight: 600; }
.nav-cta .btn {
  background: #8BC34A; color: #1a1a1a;
  padding: 8px 18px; border-radius: var(--radius-pill);
  font-size: 14px; font-weight: 600;
  text-decoration: none;
  transition: background 0.2s;
}
.nav-cta .btn:hover { background: #7CB342; }

/* Hero */
.page-hero {
  margin-top: 56px;
  padding: 80px 0 60px;
  background: var(--surface);
}
.page-hero .eyebrow {
  font-size: 14px; font-weight: 600;
  color: #558B2F; letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700; line-height: 1.15;
  color: var(--fg);
  margin-bottom: 24px;
  max-width: 20em;
}
.page-hero .lead {
  font-size: var(--text-lg);
  line-height: 1.65;
  color: var(--fg-2);
  max-width: 60ch;
}

/* Section */
.section { padding: 80px 0; }
.section--gray { background: var(--surface); }
.section-head { max-width: 760px; margin-bottom: 56px; }
.section-head .eyebrow {
  font-size: 14px; font-weight: 600;
  color: #558B2F; letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(30px, 4.6vw, 44px);
  font-weight: 700; line-height: 1.15;
  margin-bottom: 20px;
}
.section-head .lead {
  font-size: var(--text-lg);
  line-height: 1.65;
  color: var(--fg-2);
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--border);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.card:hover {
  border-color: #1B5E20;
  box-shadow: 0 8px 32px rgba(27,94,32,0.10);
}
.card-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  background: var(--surface);
  display: grid; place-items: center;
  margin-bottom: 20px;
  color: #1B5E20;
}
.card-icon svg { width: 24px; height: 24px; }
.card h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: 12px;
}
.card p {
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--fg-2);
}

/* Feature Row */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 80px;
}
.feature-row:last-child { margin-bottom: 0; }
.feature-row.reverse { direction: rtl; }
.feature-row.reverse > * { direction: ltr; }
.feature-content .eyebrow {
  font-size: 14px; font-weight: 600;
  color: #558B2F; letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.feature-content h3 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 36px);
  font-weight: 700; line-height: 1.2;
  margin-bottom: 20px;
}
.feature-content p {
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--fg-2);
  margin-bottom: 16px;
}
.feature-content ul {
  list-style: none;
  margin-top: 20px;
}
.feature-content ul li {
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--fg-2);
  padding-left: 24px;
  position: relative;
  margin-bottom: 12px;
}
.feature-content ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 10px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #8BC34A;
}
.feature-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--surface);
}
.feature-image img {
  width: 100%; height: 100%;
  object-fit: cover;
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.stat .number {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: #1B5E20;
  line-height: 1.1;
  margin-bottom: 8px;
}
.stat .label {
  font-size: var(--text-sm);
  color: var(--muted);
  line-height: 1.5;
}

/* CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
  border-radius: var(--radius-lg);
  padding: 64px;
  text-align: center;
  margin: 80px 0;
}
.cta-banner h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 36px);
  font-weight: 700;
  color: #1B5E20;
  margin-bottom: 16px;
}
.cta-banner p {
  font-size: var(--text-lg);
  color: #33691E;
  margin-bottom: 32px;
  max-width: 60ch;
  margin-left: auto;
  margin-right: auto;
}
.cta-banner .btn {
  display: inline-block;
  background: #1B5E20;
  color: #ffffff;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  font-size: var(--text-base);
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s;
}
.cta-banner .btn:hover { background: #2E7D32; }

/* Footer */
.footer {
  background: #E8F5E9;
  color: #1B5E20;
  padding: 48px 0 32px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(27,94,32,0.15);
}
.footer-brand {
  display: flex; align-items: center; gap: 10px;
  color: #1B5E20; font-weight: 600; font-size: 17px;
  margin-bottom: 16px;
}
.footer-brand .mark {
  width: 26px; height: 26px; border-radius: 7px;
  background: #8BC34A; color: #1a1a1a;
  display: grid; place-items: center;
  font-size: 13px; font-weight: 700;
}
.footer-desc {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: #558B2F;
  max-width: 34ch;
}
.footer h5 {
  color: #558B2F;
  font-size: var(--text-xs);
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 10px; }
.footer ul li a {
  color: #33691E;
  font-size: var(--text-sm);
  text-decoration: none;
  transition: color 0.2s;
}
.footer ul li a:hover { color: #1B5E20; }
.footer-bottom {
  padding-top: 24px;
  font-size: var(--text-xs);
  color: #558B2F;
  line-height: 1.8;
}
.footer-copyright { margin: 0; color: #558B2F; }
.footer-bottom .compliance {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(27, 94, 32, 0.15);
  color: #558B2F;
  max-width: 70ch;
}
.footer-bottom .compliance-text {
  margin: 0 0 8px;
  font-size: 12px;
  line-height: 1.8;
  color: #558B2F;
}
.footer-bottom .compliance-licenses {
  margin: 0;
  font-size: 12px;
  color: #558B2F;
}
.footer-bottom .compliance-licenses a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s;
}
.footer-bottom .compliance-licenses a:hover,
.footer-bottom .compliance-licenses a:focus-visible {
  color: #1B5E20;
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 833px) {
  .cards-grid { grid-template-columns: 1fr; }
  .feature-row { grid-template-columns: 1fr; gap: 32px; }
  .feature-row.reverse { direction: ltr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr; }
  .cta-banner { padding: 40px 24px; }
}
  .stats-note {
    text-align: center;
    color: #6B7280;
    font-size: 14px;
    margin-top: 28px;
  }
  .disclaimer {
    font-size: 13px;
    color: #8A8F98;
    line-height: 1.8;
    border-top: 1px solid rgba(27, 94, 32, 0.15);
    padding-top: 20px;
    margin-top: 40px;
  }
  .compliance-text {
    font-size: 12px;
    color: #9AA0A6;
    line-height: 1.8;
    margin-top: 10px;
  }