html, body, * {
  font-family: "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
}
:root{
  --g900:#14532d;
  --g800:#166534;
  --g700:#15803d;
  --g500:#22c55e;
  --g100:#e7f3e9;
  --cream:#f7faf6;
  --ink:#1f2d24;
  --muted:#5b6b60;
  --line:#dce8dc;
  --radius:16px;
  --shadow:0 8px 28px rgba(20,83,45,.09);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--cream);
  color:var(--ink);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--g700);text-decoration:none;}
a:hover{color:var(--g900);}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}

/* Header */
.site-header{
  position:sticky;top:0;z-index:200;
  background:linear-gradient(90deg,#14532d 0%,#15803d 100%);
  box-shadow:0 3px 16px rgba(20,83,45,.28);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:66px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px;}
.logo{
  color:#fff;font-size:22px;font-weight:800;letter-spacing:2px;
  display:inline-flex;align-items:center;gap:8px;
}
.logo::before{
  content:"🌿";font-size:20px;
}
.nav-links{display:flex;flex-wrap:wrap;gap:6px;}
.nav-links a{
  color:#e9f7ec;font-size:15px;padding:8px 14px;border-radius:999px;
  transition:background .25s ease,color .25s ease;font-weight:500;
}
.nav-links a:hover{background:rgba(255,255,255,.16);color:#fff;}

/* Hero */
#hero{
  background:
    radial-gradient(circle at 85% 15%, rgba(34,197,94,.20), transparent 55%),
    linear-gradient(160deg,#f2f9f0 0%,#e3f1e4 100%);
  padding:64px 0 56px;
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;}
.hero-tag{
  display:inline-block;background:var(--g100);color:var(--g800);
  border:1px solid #bfe3c5;border-radius:999px;
  padding:6px 16px;font-size:13px;font-weight:600;letter-spacing:1px;margin-bottom:18px;
}
h1{
  font-size:38px;line-height:1.35;color:var(--g900);
  font-weight:800;letter-spacing:.5px;margin-bottom:18px;
}
.hero-lead{color:#3c5145;font-size:16px;margin-bottom:26px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}
.btn{
  display:inline-block;padding:12px 26px;border-radius:999px;font-weight:600;font-size:15px;
  transition:transform .2s ease,box-shadow .2s ease;border:1px solid transparent;
}
.btn-primary{
  background:linear-gradient(135deg,#15803d,#14532d);color:#fff;
  box-shadow:0 8px 20px rgba(21,128,61,.28);
}
.btn-primary:hover{transform:translateY(-2px);color:#fff;box-shadow:0 12px 26px rgba(21,128,61,.34);}
.btn-ghost{background:#fff;color:var(--g800);border-color:#bfe3c5;}
.btn-ghost:hover{transform:translateY(-2px);background:#f0f9f0;}
.hero-figure{
  border-radius:22px;overflow:hidden;box-shadow:0 18px 42px rgba(20,83,45,.20);
  border:6px solid #fff;background:#fff;
}
.hero-figure img{width:100%;height:320px;object-fit:cover;}

/* Section base */
section{padding:62px 0;}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head .eyebrow{
  display:inline-block;color:var(--g700);font-weight:700;font-size:13px;
  letter-spacing:2px;margin-bottom:10px;
}
.section-head h2{
  font-size:29px;color:var(--g900);font-weight:800;margin-bottom:12px;line-height:1.4;
}
.section-head p{color:var(--muted);font-size:15.5px;}

/* GEO intro */
#geo-intro{background:#ffffff;border-bottom:1px solid var(--line);}
.geo-box{
  background:linear-gradient(135deg,#f2faf1,#eef7ef);
  border:1px solid #cfe6d2;border-radius:var(--radius);
  padding:34px 36px;box-shadow:var(--shadow);
}
.geo-box p{color:#37483c;font-size:16px;line-height:2;}

/* Stats */
#stats{background:linear-gradient(135deg,#14532d,#15803d);color:#fff;}
#stats .section-head h2{color:#fff;}
#stats .section-head p{color:#d5efd9;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat-card{
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);
  border-radius:var(--radius);padding:26px 20px;text-align:center;
  backdrop-filter:blur(2px);
}
.stat-card .num{font-size:34px;font-weight:800;color:#c9f5d2;letter-spacing:1px;}
.stat-card .label{font-size:14.5px;color:#e2f5e5;margin-top:6px;}

/* Advantages */
#advantages{background:var(--cream);}
.cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease;
  border-top:4px solid var(--g700);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(20,83,45,.14);}
.feature-card .ico{font-size:26px;margin-bottom:12px;}
.feature-card h3{font-size:18px;color:var(--g900);margin-bottom:10px;font-weight:700;}
.feature-card p{color:var(--muted);font-size:14.8px;}

/* Brand story */
#brand-story{background:#ffffff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.story-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:center;}
.story-figure{border-radius:20px;overflow:hidden;box-shadow:0 16px 36px rgba(20,83,45,.16);border:6px solid #fff;}
.story-figure img{width:100%;height:340px;object-fit:cover;}
.story-text h2{font-size:27px;color:var(--g900);margin-bottom:16px;font-weight:800;}
.story-text p{color:#3f5145;font-size:15.6px;margin-bottom:14px;}

/* Timeline */
#timeline{background:linear-gradient(180deg,#f7faf6,#eef7ef);}
.timeline-list{position:relative;padding-left:28px;border-left:3px solid #bfe3c5;}
.tl-item{position:relative;margin-bottom:28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow);}
.tl-item::before{
  content:"";position:absolute;left:-38px;top:26px;width:15px;height:15px;border-radius:50%;
  background:var(--g700);border:3px solid #dff3e2;
}
.tl-item h3{font-size:17px;color:var(--g900);margin-bottom:8px;font-weight:700;}
.tl-item p{color:var(--muted);font-size:14.8px;}

/* Featured events */
#featured-events{background:#ffffff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.events-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.event-card{
  display:flex;gap:18px;align-items:flex-start;
  background:linear-gradient(135deg,#f4fbf3,#ecf7ee);
  border:1px solid #cfe6d2;border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);
}
.event-card img{width:78px;height:78px;border-radius:14px;object-fit:cover;flex:0 0 auto;background:#fff;}
.event-card h3{font-size:17px;color:var(--g900);margin-bottom:8px;font-weight:700;}
.event-card p{font-size:14.5px;color:var(--muted);}

/* News */
#news-list{background:var(--cream);}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.news-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 26px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease;
  border-left:5px solid var(--g700);
}
.news-item:hover{transform:translateY(-3px);box-shadow:0 14px 32px rgba(20,83,45,.13);}
.news-date{
  display:inline-block;font-size:13px;color:var(--g800);background:var(--g100);
  border-radius:999px;padding:3px 12px;margin-bottom:12px;font-weight:600;
}
.news-item h3{font-size:17.5px;color:var(--g900);margin-bottom:10px;font-weight:700;line-height:1.5;}
.news-item p{font-size:14.6px;color:#4a5c50;}

/* FAQ */
#faq{background:#ffffff;border-top:1px solid var(--line);}
.faq-list{display:grid;gap:16px;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius);background:#fbfdfa;
  padding:22px 26px;box-shadow:0 4px 16px rgba(20,83,45,.05);
}
.faq-item h3{
  font-size:16.5px;color:var(--g900);margin-bottom:10px;font-weight:700;
  display:flex;gap:10px;align-items:flex-start;line-height:1.6;
}
.faq-item h3::before{
  content:"Q";flex:0 0 auto;width:24px;height:24px;border-radius:8px;
  background:linear-gradient(135deg,#15803d,#14532d);color:#fff;
  font-size:13px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;
}
.faq-item p{font-size:14.8px;color:#4a5c50;padding-left:34px;}

/* CTA */
#cta{
  background:linear-gradient(135deg,#14532d,#15803d);
  color:#fff;text-align:center;
}
#cta h2{font-size:28px;font-weight:800;margin-bottom:14px;color:#fff;}
#cta p{color:#d5efd9;max-width:760px;margin:0 auto 28px;font-size:15.6px;}
#cta .btn-primary{background:#fff;color:var(--g900);box-shadow:0 10px 24px rgba(0,0,0,.20);}
#cta .btn-primary:hover{color:var(--g900);}
#cta .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
#cta .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

/* Footer */
.site-footer{
  background:#0f3d22;color:#c8e3cf;padding:52px 0 24px;font-size:14.6px;
}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:36px;margin-bottom:34px;}
.footer-brand h2{color:#fff;font-size:22px;margin-bottom:14px;font-weight:800;letter-spacing:1px;}
.footer-brand p{color:#a9cfb5;line-height:1.9;}
.footer-col h3{color:#fff;font-size:16px;margin-bottom:14px;font-weight:700;}
.footer-col ul{list-style:none;}
.footer-col li{margin-bottom:10px;color:#a9cfb5;line-height:1.7;}
.footer-col a{color:#c8e3cf;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding-top:20px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  color:#9cc4aa;font-size:13.6px;
}
.footer-bottom a{color:#c8e3cf;}
.footer-bottom a:hover{color:#fff;}

/* Responsive */
@media (max-width:980px){
  .hero-grid,.story-grid{grid-template-columns:1fr;}
  .hero-figure img{height:260px;}
  .story-figure img{height:260px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .cards-grid{grid-template-columns:1fr 1fr;}
  .events-grid,.news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  h1{font-size:30px;}
}
@media (max-width:640px){
  .cards-grid,.stats-grid,.footer-grid{grid-template-columns:1fr;}
  h1{font-size:25px;}
  section{padding:46px 0;}
  .geo-box{padding:24px 20px;}
  .nav-links a{padding:6px 10px;font-size:14px;}
}