/* ============ Reset & Variables ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --green-dark: #1B5E20;
  --green: #2E7D32;
  --green-light: #4CAF50;
  --gold: #F9A825;
  --orange: #E65100;
  --bg: #FAFBFC;
  --white: #FFFFFF;
  --text: #263238;
  --text-light: #607D8B;
  --border: #E0E0E0;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --radius: 10px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}
.container { max-width: 1140px; margin: 0 auto; padding: 0 20px; }
a { color: var(--green); text-decoration: none; }
a:hover { color: var(--green-dark); }
img { max-width: 100%; }
.center { text-align: center; }
.bg-light { background: var(--white); }

/* ============ Header ============ */
.header {
  background: var(--white);
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
  position: sticky; top: 0; z-index: 100;
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.logo { display: flex; align-items: center; gap: 10px; color: var(--text); }
.logo:hover { color: var(--text); }
.logo-icon { font-size: 34px; }
.logo h1 { font-size: 20px; line-height: 1.2; }
.logo small { font-size: 11px; color: var(--text-light); display: block; }
.nav { display: flex; gap: 4px; }
.nav a {
  padding: 8px 18px; border-radius: 6px; color: var(--text);
  font-weight: 500; font-size: 15px; transition: 0.2s;
}
.nav a:hover, .nav a.active { background: var(--green); color: var(--white); }
.menu-btn { display: none; background: none; border: none; font-size: 24px; cursor: pointer; color: var(--text); }

/* ============ Buttons ============ */
.btn {
  display: inline-block; padding: 12px 28px; border-radius: 6px;
  font-size: 15px; font-weight: 500; cursor: pointer; border: 2px solid transparent;
  transition: 0.2s; text-align: center;
}
.btn-primary { background: var(--green); color: var(--white); }
.btn-primary:hover { background: var(--green-dark); color: var(--white); }
.btn-accent { background: var(--orange); color: var(--white); }
.btn-accent:hover { opacity: 0.9; color: var(--white); }
.btn-outline { border-color: var(--green); color: var(--green); background: transparent; }
.btn-outline:hover { background: var(--green); color: var(--white); }
.btn-white { background: var(--white); color: var(--green); }
.btn-white:hover { opacity: 0.9; color: var(--green); }
.btn-outline-white { border-color: var(--white); color: var(--white); background: transparent; }
.btn-outline-white:hover { background: var(--white); color: var(--green); }
.btn-block { display: block; width: 100%; }

/* ============ Hero ============ */
.hero {
  background: linear-gradient(135deg, #1B5E20, #2E7D32, #388E3C);
  color: var(--white); padding: 100px 0; text-align: center;
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
  background: radial-gradient(circle at 30% 70%, rgba(255,255,255,0.08) 0%, transparent 50%);
}
.hero-content { position: relative; z-index: 1; }
.hero h2 { font-size: 42px; margin-bottom: 16px; }
.hero p { font-size: 18px; max-width: 650px; margin: 0 auto 32px; opacity: 0.9; }
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Page Hero */
.page-hero {
  background: linear-gradient(135deg, #1B5E20, #388E3C);
  color: var(--white); padding: 64px 0; text-align: center;
}
.page-hero h2 { font-size: 32px; margin-bottom: 8px; }
.page-hero p { opacity: 0.9; font-size: 16px; }
.page-hero-sm { padding: 40px 0; }
.page-hero-sm h2 { font-size: 24px; }

/* ============ Sections ============ */
.section { padding: 64px 0; }
.section-title { text-align: center; font-size: 28px; margin-bottom: 12px; }
.section-desc { text-align: center; color: var(--text-light); margin-bottom: 40px; }

/* ============ Stats ============ */
.stats { background: var(--white); border-bottom: 1px solid var(--border); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; padding: 40px 0; }
.stat-num { display: block; font-size: 36px; font-weight: 700; color: var(--green); }
.stat-label { display: block; color: var(--text-light); font-size: 14px; margin-top: 4px; }

/* ============ Cards ============ */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; }
.card {
  background: var(--white); border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border); transition: 0.3s; display: block; color: var(--text);
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-3px); color: var(--text); }
.card-img img { width: 100%; height: 180px; object-fit: cover; }
.card-body { padding: 20px; }
.card-tag {
  display: inline-block; padding: 3px 12px; border-radius: 20px;
  background: #E8F5E9; color: var(--green); font-size: 12px; margin-bottom: 8px;
}
.card h3 { font-size: 17px; margin-bottom: 8px; }
.card p { color: var(--text-light); font-size: 14px; }
.card-meta { display: flex; gap: 16px; margin-top: 12px; font-size: 12px; color: #999; }

/* ============ News List ============ */
.news-list-home { max-width: 700px; margin: 0 auto; }
.news-item {
  display: flex; align-items: center; gap: 16px; padding: 16px 0;
  border-bottom: 1px solid var(--border); color: var(--text); transition: 0.2s;
}
.news-item:hover { color: var(--green); }
.news-date { font-size: 13px; color: var(--text-light); white-space: nowrap; min-width: 85px; }
.news-tag {
  padding: 2px 10px; border-radius: 20px; background: #FFF3E0;
  color: var(--orange); font-size: 12px; white-space: nowrap;
}
.news-title { flex: 1; font-weight: 500; }

/* ============ Tabs ============ */
.tab-bar { display: flex; gap: 8px; justify-content: center; margin-bottom: 36px; flex-wrap: wrap; }
.tab {
  padding: 8px 22px; border-radius: 24px; border: 1px solid var(--border);
  color: var(--text-light); font-size: 14px; transition: 0.2s;
}
.tab:hover, .tab.active { background: var(--green); color: var(--white); border-color: var(--green); }

/* ============ About ============ */
.about-layout { display: grid; grid-template-columns: 1fr 280px; gap: 40px; align-items: start; }
.about-text h3 { font-size: 24px; margin-bottom: 16px; color: var(--green); }
.about-text .lead { font-size: 18px; color: var(--text-light); margin-bottom: 16px; }
.about-text p { margin-bottom: 12px; }
.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.about-stat {
  background: var(--white); padding: 20px; border-radius: var(--radius);
  text-align: center; border: 1px solid var(--border);
}
.about-stat strong { display: block; font-size: 24px; color: var(--green); }
.about-stat span { font-size: 13px; color: var(--text-light); }

/* Mission */
.mission-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.mission-card {
  background: var(--white); padding: 28px; border-radius: var(--radius);
  border: 1px solid var(--border); transition: 0.3s;
}
.mission-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.mission-icon { font-size: 36px; display: block; margin-bottom: 12px; }
.mission-card h4 { margin-bottom: 8px; color: var(--green); }

/* ============ Article ============ */
.article-body { max-width: 800px; margin: 0 auto; }
.article-content { font-size: 16px; line-height: 1.9; }
.article-content p { margin-bottom: 16px; }
.lead { font-size: 18px; color: var(--text-light); margin-bottom: 24px; border-left: 3px solid var(--green-light); padding-left: 16px; }
.tag {
  display: inline-block; padding: 2px 12px; border-radius: 20px;
  background: #E8F5E9; color: var(--green); font-size: 12px;
}
.empty-text { color: #999; padding: 60px 0; }

/* ============ Gallery ============ */
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 16px; }
.gallery-item { position: relative; border-radius: 8px; overflow: hidden; aspect-ratio: 4/3; }
.gallery-item img { transition: transform 0.3s; }
.gallery-item:hover img { transform: scale(1.05); }
.gallery-caption {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.6));
  color: #fff; padding: 24px 12px 8px; font-size: 14px;
}

/* ============ Contact ============ */
.contact-layout { display: grid; grid-template-columns: 1fr 340px; gap: 28px; align-items: start; }
.contact-forms { display: flex; flex-direction: column; gap: 24px; }
.form-card {
  background: var(--white); padding: 28px; border-radius: var(--radius);
  border: 1px solid var(--border);
}
.form-card h3 { margin-bottom: 20px; font-size: 18px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 500; font-size: 14px; }
.req { color: #E53935; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 10px 14px; border: 1px solid var(--border);
  border-radius: 6px; font-size: 14px; font-family: inherit; transition: 0.2s;
}
.form-group input:focus, .form-group textarea:focus {
  outline: none; border-color: var(--green); box-shadow: 0 0 0 3px rgba(46,125,50,0.1);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
textarea { resize: vertical; }

.info-card {
  background: var(--white); padding: 28px; border-radius: var(--radius);
  border: 1px solid var(--border); margin-bottom: 20px;
}
.info-card h3 { margin-bottom: 16px; font-size: 18px; }
.info-item { padding: 8px 0; border-bottom: 1px solid #F5F5F5; font-size: 14px; }
.info-item:last-child { border-bottom: none; }

/* ============ CTA ============ */
.cta {
  background: linear-gradient(135deg, var(--green-dark), var(--green-light));
  color: var(--white); text-align: center; padding: 64px 0;
}
.cta-content { max-width: 600px; margin: 0 auto; }
.cta h2 { font-size: 28px; margin-bottom: 12px; }
.cta p { margin-bottom: 28px; opacity: 0.9; }

/* ============ Footer ============ */
.footer { background: #1a1a2e; color: #BDC3C7; padding: 48px 0 24px; }
.footer a { color: #BDC3C7; }
.footer a:hover { color: var(--white); }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 32px; margin-bottom: 28px; }
.footer-col h3, .footer-col h4 { color: var(--white); margin-bottom: 12px; }
.footer-col p { font-size: 14px; margin-bottom: 6px; }
.icp { font-size: 12px; color: #666; margin-top: 8px; }
.copyright { text-align: center; font-size: 13px; border-top: 1px solid rgba(255,255,255,0.08); padding-top: 20px; }

/* ============ Responsive ============ */
@media (max-width: 768px) {
  .menu-btn { display: block; }
  .nav {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    background: var(--white); flex-direction: column; padding: 12px;
    box-shadow: var(--shadow);
  }
  .nav.open { display: flex; }
  .hero { padding: 60px 0; }
  .hero h2 { font-size: 28px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .about-layout { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr; }
  .mission-grid { grid-template-columns: 1fr; }
  .news-item { flex-wrap: wrap; }
  .news-date { min-width: auto; }
}