/* cn-gpmb.css — Chinese landing page (evergreen URL, current edition content)
   Keep this file self-hosted (no Google fonts, no external CDN required). */

:root{
  --primary:#2d5f3a;
  --primary-2:#68b684;
  --accent:#f6b800;
  --bg:#f7fafc;
  --card:#ffffff;
  --text:#1a202c;
  --muted:#4a5568;
  --muted-2:#718096;
  --border:#e2e8f0;
  --shadow:0 10px 30px rgba(0,0,0,.08);
  --radius:18px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",sans-serif;
  line-height:1.7;
  color:var(--text);
  background:var(--bg);
}

a{color:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* Top bar */
.topbar{
  background:#fff;
  border-bottom:1px solid var(--border);
}
.topbar-inner{
  display:flex; align-items:center; justify-content:space-between;
  gap:14px;
  padding:12px 0;
}
.brand{
  display:flex; flex-direction:column; gap:2px;
}
.brand strong{font-weight:900}
.brand small{color:var(--muted-2)}
.toplinks{
  display:flex; flex-wrap:wrap; gap:10px; justify-content:flex-end;
}
.toplink{
  font-size:13px;
  padding:8px 12px;
  border:1px solid var(--border);
  border-radius:999px;
  color:var(--muted);
  text-decoration:none;
  background:#fff;
}
.toplink:hover{border-color:rgba(45,95,58,.35); color:var(--text)}

/* Hero */
.hero{
  position:relative;
  background:linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 40%, #c7f9cc 100%);
  color:#fff;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute; inset:0;
  background-image:
    radial-gradient(circle at 10% 20%, rgba(255,255,255,0.18) 0, transparent 55%),
    radial-gradient(circle at 80% 0, rgba(255,255,255,0.20) 0, transparent 55%),
    url("https://plant-science-biology-conferences.magnusgroup.org/images/banner/plant-science-conference.jpg");
  background-size:cover;
  background-position:center;
  opacity:.18;
  pointer-events:none;
}
.hero-overlay{
  position:absolute; inset:0;
  background:radial-gradient(circle at 0 0, rgba(0,0,0,0.35), transparent 60%);
  pointer-events:none;
}
.hero-inner{position:relative; z-index:1; padding:76px 0 64px}
.hero-text{max-width:900px}
.hero-tag{
  display:inline-block;
  background:rgba(15,94,55,0.20);
  border:1px solid rgba(199,249,204,0.6);
  padding:8px 18px;
  border-radius:999px;
  font-size:14px;
  margin-bottom:18px;
  font-weight:800;
}
.hero h1{
  font-size:42px;
  line-height:1.18;
  margin:0 0 12px;
}
.hero-subtitle{
  font-size:18px;
  margin:0 0 18px;
  max-width:820px;
}
.hero-facts{
  display:flex; flex-wrap:wrap;
  gap:12px 22px;
  margin:0 0 22px;
  font-size:15px;
}
.hero-facts strong{font-weight:900}
.highlight{color:#f6e05e;font-weight:900}

/* Buttons */
.cta-group{display:flex;flex-wrap:wrap;gap:12px;margin:0 0 10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 22px;
  border-radius:999px;
  font-size:15px;
  font-weight:900;
  border:1px solid transparent;
  text-decoration:none;
  transition:all .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--accent);
  border-color:var(--accent);
  color:#1a202c;
  box-shadow:0 10px 24px rgba(0,0,0,.14);
}
.btn-primary:hover{background:#ffd65a;border-color:#ffd65a;transform:translateY(-1px)}
.btn-secondary{
  background:rgba(255,255,255,0.18);
  border-color:rgba(255,255,255,0.55);
  color:#fff;
  backdrop-filter:blur(4px);
}
.btn-secondary:hover{background:rgba(255,255,255,0.28)}
.link-secondary{
  color:#fff;
  font-size:14px;
  text-decoration:underline;
  opacity:.95;
}
.link-secondary:hover{opacity:1}

/* Sections */
section{padding:68px 0}
.section-white{background:#fff}
.section-soft{background:linear-gradient(135deg, #f0fff4, #e6fffa)}
h2{
  font-size:34px;
  font-weight:950;
  color:var(--text);
  margin:0 0 34px;
  text-align:center;
  position:relative;
  padding-bottom:14px;
}
h2::after{
  content:"";
  position:absolute;
  left:50%;
  transform:translateX(-50%);
  bottom:0;
  width:64px;
  height:3px;
  background:linear-gradient(90deg, var(--primary), var(--primary-2));
  border-radius:999px;
}

/* Cards / grids */
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:18px;
}
.card{
  background:var(--card);
  border-radius:16px;
  padding:22px 18px;
  box-shadow:0 8px 24px rgba(0,0,0,0.05);
  text-align:center;
  border:1px solid rgba(45,95,58,0.06);
}
.card-strong{
  font-size:30px;
  font-weight:950;
  color:var(--primary);
  margin-bottom:4px;
}
.card-label{font-size:14px;color:var(--muted)}

/* Content blocks */
.content{
  max-width:940px;
  margin:0 auto;
  font-size:16px;
  color:#2d3748;
}
.theme{
  background:#f0fff4;
  border-left:4px solid var(--primary);
  padding:12px 16px;
  border-radius:10px;
  margin:16px 0 18px;
  font-weight:800;
}
.note-box{
  margin-top:18px;
  padding:16px 18px;
  background:#edf2f7;
  border-radius:12px;
  font-size:15px;
}
.note-box ul{margin-top:10px;padding-left:18px}
.note-box li{margin-bottom:6px}

/* Topics */
.topics-grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0, 1fr));
  gap:22px;
}
.topics-grid ul{list-style:none;margin:0;padding:0}
.topics-grid li{
  position:relative;
  padding-left:18px;
  margin-bottom:10px;
  font-size:15px;
  color:#2d3748;
}
.topics-grid li::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  width:8px;
  height:8px;
  border-radius:50%;
  background:linear-gradient(135deg, var(--primary), var(--primary-2));
}
.topic-note{
  margin-top:16px;
  font-size:14px;
  color:var(--muted);
  text-align:center;
}

/* Dates table rows */
.dates-table{
  max-width:940px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.date-row{
  display:flex;
  justify-content:space-between;
  gap:16px;
  padding:12px 16px;
  background:#fff;
  border-radius:12px;
  border:1px solid #c6f6d5;
}
.date-label{font-weight:950;font-size:15px}
.date-value{flex:1;color:#2f855a;font-weight:950;text-align:right;font-size:16px}

/* Two-column support */
.support-grid{
  max-width:940px;
  margin:0 auto;
  display:grid;
  grid-template-columns:1.5fr 1fr;
  gap:18px;
  align-items:start;
}
.support-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:16px;
  padding:18px 18px;
  box-shadow:0 6px 20px rgba(0,0,0,0.05);
  font-size:15px;
  text-align:left;
}
.support-card h3{
  font-size:18px;
  margin:0 0 10px;
  color:var(--text);
  font-weight:950;
}
.support-list{list-style:none;margin:0;padding:0}
.support-list li{margin-bottom:10px}
.support-list strong{font-weight:950}
.support-tip{
  margin-top:10px;
  padding:12px 14px;
  background:#f7fafc;
  border-radius:12px;
  color:var(--muted);
  font-size:14px;
}

/* Who cards */
.who-grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0, 1fr));
  gap:22px;
}
.who-card{
  background:#fff;
  border-radius:16px;
  padding:20px 18px;
  box-shadow:0 4px 16px rgba(0,0,0,0.05);
  border:1px solid #edf2f7;
  font-size:15px;
  text-align:left;
}
.who-card h3{
  font-size:18px;
  margin:0 0 10px;
  color:#2d3748;
  font-weight:950;
}
.who-card ul{list-style:none;margin:0;padding:0}
.who-card li{margin-bottom:6px;padding-left:14px;position:relative}
.who-card li::before{content:"•";position:absolute;left:0;top:0;color:var(--primary)}

/* Contact */
.contact-info{
  max-width:940px;
  margin:0 auto;
  background:#fff;
  border-radius:16px;
  padding:22px 20px;
  box-shadow:0 4px 20px rgba(0,0,0,0.06);
  border:1px solid var(--border);
  font-size:15px;
}
.contact-item{margin-bottom:12px}
.contact-item strong{display:block;margin-bottom:4px;font-weight:950}
.contact-item a{color:var(--primary); text-decoration:underline}
.contact-item a:hover{color:#22543d}

/* Footer */
.footer{
  background:#1a202c;
  color:#e2e8f0;
  padding:30px 0;
  font-size:14px;
}
.footer-inner{
  display:flex;
  flex-direction:column;
  gap:10px;
  text-align:center;
}
.footer-links{
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:18px;
  margin-top:10px;
}
.footer-links a{color:#a0aec0;text-decoration:none;font-size:13px}
.footer-links a:hover{color:#e2e8f0;text-decoration:underline}

/* Responsive */
@media (max-width: 900px){
  .hero-inner{padding:58px 0 48px}
  .hero h1{font-size:32px}
  .stats-grid{grid-template-columns:repeat(2, 1fr)}
  .topics-grid{grid-template-columns:repeat(2, minmax(0, 1fr))}
  .who-grid{grid-template-columns:repeat(2, minmax(0, 1fr))}
  .support-grid{grid-template-columns:1fr}
}
@media (max-width: 640px){
  .hero-inner{padding:40px 0 40px}
  .hero h1{font-size:26px}
  .hero-facts{flex-direction:column; align-items:flex-start}
  .date-row{flex-direction:column; gap:8px}
  .date-value{text-align:left}
  .cta-group{flex-direction:column}
  h2{font-size:28px}
}