/* 基础重置 */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
body { 
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif; 
  overflow-x:hidden; 
  background:#FAF7F2; 
  color:#3D3226; 
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

/* 核心布局 — 必须居中 */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; }
.section:nth-child(even) { background:#F5F0E8; }

/* 导航 — 固定顶部 */
.site-header { 
  position:fixed; top:0; left:0; width:100%; z-index:1000; 
  background:rgba(250,247,242,0.92); 
  backdrop-filter:blur(12px); 
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(92,122,58,0.12); 
  transition:box-shadow 0.3s;
}
.site-header.scrolled { box-shadow:0 2px 24px rgba(61,50,38,0.06); }
.header-inner { 
  display:flex; align-items:center; justify-content:space-between; 
  height:68px; max-width:1200px; margin:0 auto; padding:0 24px; 
}
.logo { 
  display:flex; align-items:center; gap:10px; 
  font-weight:800; font-size:1.25rem; text-decoration:none; 
  color:#3D3226; letter-spacing:-0.02em;
  transition:opacity 0.2s;
}
.logo:hover { opacity:0.8; }
.logo-icon { 
  width:38px; height:38px; border-radius:10px; 
  display:flex; align-items:center; justify-content:center; 
  font-size:1.1rem; 
  background:linear-gradient(135deg, #5C7A3A 0%, #7A9A4E 100%); 
  color:#fff; 
  box-shadow:0 2px 8px rgba(92,122,58,0.25);
}
.main-nav { display:flex; align-items:center; gap:28px; list-style:none; }
.main-nav a { 
  text-decoration:none; font-size:0.9rem; font-weight:500; 
  color:#5C6B4F; transition:color 0.2s; position:relative;
}
.main-nav a:hover { color:#5C7A3A; }
.main-nav a::after {
  content:''; position:absolute; bottom:-4px; left:0; width:0; height:2px;
  background:#C67A4B; border-radius:1px; transition:width 0.25s ease;
}
.main-nav a:hover::after { width:100%; }
.nav-cta { 
  padding:9px 22px; border-radius:24px; 
  color:#fff!important; font-weight:600; 
  background:linear-gradient(135deg, #C67A4B 0%, #D4945C 100%); 
  box-shadow:0 3px 12px rgba(198,122,75,0.3);
  transition:transform 0.2s, box-shadow 0.2s;
  font-size:0.85rem!important;
}
.nav-cta:hover { 
  transform:translateY(-2px); 
  box-shadow:0 6px 20px rgba(198,122,75,0.4);
  color:#fff!important;
}
.nav-cta::after { display:none; }
.menu-toggle { 
  display:none; flex-direction:column; gap:5px; cursor:pointer; 
  padding:8px; background:none; border:none; 
}
.menu-toggle span { 
  width:26px; height:2.5px; background:#3D3226; 
  border-radius:2px; transition:0.3s; 
}

/* 首页Hero */
.hero { 
  min-height:70vh; display:flex; align-items:center; 
  padding-top:88px; position:relative; overflow:hidden;
}
.hero::before {
  content:''; position:absolute; top:-120px; right:-180px; 
  width:500px; height:500px; border-radius:50%;
  background:radial-gradient(circle, rgba(212,168,67,0.12) 0%, transparent 70%);
  pointer-events:none; z-index:0;
}
.hero::after {
  content:''; position:absolute; bottom:-80px; left:-100px;
  width:360px; height:360px; border-radius:50%;
  background:radial-gradient(circle, rgba(92,122,58,0.08) 0%, transparent 70%);
  pointer-events:none; z-index:0;
}
.hero .container {
  display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center;
  position:relative; z-index:1;
}
.hero-content { max-width:720px; }
.hero-eyebrow { 
  display:inline-block; font-size:0.8rem; font-weight:700; 
  padding:5px 16px; border-radius:20px; margin-bottom:16px;
  background:#E8D5C4; color:#8B5E3C; letter-spacing:1.5px; text-transform:uppercase;
}
.hero h1 { 
  font-size:3rem; line-height:1.15; margin-bottom:20px; 
  font-weight:900; color:#3D3226; letter-spacing:-0.03em;
}
.hero h1 span { 
  color:#5C7A3A; position:relative;
  display:inline-block;
}
.hero h1 span::after {
  content:''; position:absolute; bottom:2px; left:0; width:100%; height:8px;
  background:rgba(212,168,67,0.35); border-radius:4px; z-index:-1;
}
.hero p { 
  font-size:1.1rem; opacity:0.75; max-width:520px; margin-bottom:32px; 
  color:#5C6B4F; line-height:1.7;
}
.hero-buttons { display:flex; gap:14px; flex-wrap:wrap; }
.hero-image { 
  border-radius:20px; overflow:hidden; 
  box-shadow:0 20px 40px rgba(61,50,38,0.1), 0 4px 12px rgba(61,50,38,0.06);
  position:relative; aspect-ratio:4/3;
}
.hero-image img { width:100%; height:100%; object-fit:cover; display:block; }

/* 按钮 */
.btn { 
  display:inline-flex; align-items:center; gap:8px; 
  padding:13px 30px; border-radius:28px; font-weight:700; 
  cursor:pointer; border:none; text-decoration:none; 
  transition:all 0.25s ease; font-size:0.95rem;
  letter-spacing:0.01em;
}
.btn-primary { 
  color:#fff; 
  background:linear-gradient(135deg, #5C7A3A 0%, #6D8E45 100%); 
  box-shadow:0 4px 16px rgba(92,122,58,0.3);
}
.btn-primary:hover { 
  transform:translateY(-3px); 
  box-shadow:0 8px 28px rgba(92,122,58,0.4);
}
.btn-outline { 
  background:transparent; border:2px solid #C67A4B; 
  color:#C67A4B; 
}
.btn-outline:hover { 
  background:#C67A4B; color:#fff; 
  transform:translateY(-3px);
  box-shadow:0 6px 20px rgba(198,122,75,0.3);
}

/* 标签/标题 */
.section-label { 
  display:inline-block; font-size:0.78rem; font-weight:700; 
  letter-spacing:2.5px; margin-bottom:12px; 
  color:#C67A4B; text-transform:uppercase;
}
.section-title { 
  font-size:2.2rem; margin-bottom:14px; 
  font-weight:800; color:#3D3226; letter-spacing:-0.02em;
  line-height:1.25;
}
.section-desc { 
  max-width:600px; opacity:0.7; margin-bottom:40px; 
  color:#5C6B4F; font-size:1.05rem; line-height:1.7;
}

/* 卡片网格 */
.cards-grid { 
  display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); 
  gap:24px; 
}
.category-card { 
  border-radius:16px; padding:30px 26px; 
  border:1px solid rgba(92,122,58,0.1); 
  background:#fff;
  transition:all 0.3s ease; 
  position:relative; overflow:hidden;
  box-shadow:0 1px 4px rgba(61,50,38,0.04);
}
.category-card::before {
  content:''; position:absolute; top:0; left:0; width:100%; height:3px;
  background:linear-gradient(90deg, #5C7A3A, #C67A4B, #D4A843);
  transform:scaleX(0); transform-origin:left; transition:transform 0.4s ease;
}
.category-card:hover::before { transform:scaleX(1); }
.category-card:hover { 
  transform:translateY(-5px); 
  box-shadow:0 16px 36px rgba(61,50,38,0.1); 
  border-color:transparent;
}
.card-icon { 
  width:52px; height:52px; border-radius:14px; 
  display:flex; align-items:center; justify-content:center; 
  margin-bottom:18px; font-size:1.4rem; 
  background:#F5F0E8; color:#5C7A3A;
}
.category-card h3 { font-size:1.1rem; font-weight:700; color:#3D3226; margin-bottom:8px; }
.category-card p { font-size:0.9rem; color:#5C6B4F; opacity:0.7; line-height:1.6; margin-bottom:16px; }
.card-link { 
  font-weight:700; font-size:0.85rem; text-decoration:none; 
  color:#C67A4B; display:inline-flex; align-items:center; gap:4px;
  transition:gap 0.2s;
}
.card-link:hover { gap:8px; }

/* 特性块 */
.feature-block { 
  display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; 
}
.feature-image { 
  border-radius:20px; overflow:hidden; 
  box-shadow:0 16px 40px rgba(61,50,38,0.08);
  aspect-ratio:4/3;
}
.feature-image img { width:100%; height:100%; object-fit:cover; display:block; }
.feature-text h3 { font-size:1.6rem; font-weight:800; color:#3D3226; margin-bottom:12px; }
.feature-text p { color:#5C6B4F; opacity:0.75; line-height:1.7; margin-bottom:20px; }
.feature-list { list-style:none; }
.feature-list li { 
  padding:8px 0; display:flex; align-items:center; gap:10px; 
  font-size:0.95rem; color:#3D3226; font-weight:500;
}
.feature-list li::before { 
  content:'✓'; font-weight:700; color:#5C7A3A; 
  width:22px; height:22px; border-radius:50%; 
  background:#E8EFDF; display:inline-flex; align-items:center; 
  justify-content:center; font-size:0.7rem; flex-shrink:0;
}

/* 数据条 */
.stats-bar { 
  display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; 
}
.stat-item { 
  padding:28px 20px; border-radius:16px; 
  border:1px solid rgba(92,122,58,0.1); 
  background:#fff;
  transition:transform 0.3s, box-shadow 0.3s;
}
.stat-item:hover { 
  transform:translateY(-4px); 
  box-shadow:0 12px 28px rgba(61,50,38,0.08);
}
.stat-number { 
  font-size:2.6rem; font-weight:900; 
  background:linear-gradient(135deg, #5C7A3A 0%, #7A9A4E 50%, #C67A4B 100%);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
  background-clip:text;
  line-height:1;
}
.stat-label { font-size:0.9rem; opacity:0.65; margin-top:8px; color:#5C6B4F; font-weight:500; }

/* 内容墙 */
.content-wall { 
  display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); 
  gap:24px; 
}
.content-wall-item { 
  border-radius:16px; overflow:hidden; 
  border:1px solid rgba(92,122,58,0.08); 
  background:#fff;
  transition:all 0.3s ease; 
}
.content-wall-item:hover { 
  transform:translateY(-5px); 
  box-shadow:0 20px 40px rgba(61,50,38,0.1); 
}
.content-wall-item img { 
  width:100%; height:200px; object-fit:cover; display:block;
}
.content-wall-body { padding:22px 20px; }
.content-wall-body h3 { font-size:1.05rem; font-weight:700; color:#3D3226; margin-bottom:6px; }
.content-wall-body p { font-size:0.88rem; color:#5C6B4F; opacity:0.7; line-height:1.5; }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { 
  border:1px solid rgba(92,122,58,0.1); 
  border-radius:12px; margin-bottom:10px; overflow:hidden; cursor:pointer; 
  background:#fff; transition:border-color 0.3s;
}
.faq-item:hover { border-color:rgba(92,122,58,0.25); }
.faq-item .faq-question { 
  padding:18px 22px; font-weight:700; display:flex; justify-content:space-between; 
  color:#3D3226; align-items:center; font-size:0.98rem;
}
.faq-item .faq-question::after { content:'+'; font-size:1.3rem; color:#C67A4B; transition:transform 0.3s; }
.faq-item.open .faq-question::after { content:'−'; transform:rotate(180deg); }
.faq-item .faq-answer { 
  padding:0 22px 18px; display:none; opacity:0.7; 
  color:#5C6B4F; line-height:1.7; font-size:0.93rem;
}
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 */
.cta-banner { 
  padding:60px 24px; text-align:center; border-radius:20px; color:#fff; 
  background:linear-gradient(135deg, #5C7A3A 0%, #4A6830 30%, #C67A4B 100%);
  position:relative; overflow:hidden;
}
.cta-banner::before {
  content:''; position:absolute; top:-60px; right:-60px; 
  width:200px; height:200px; border-radius:50%;
  background:rgba(255,255,255,0.06); pointer-events:none;
}
.cta-banner::after {
  content:''; position:absolute; bottom:-40px; left:-40px;
  width:160px; height:160px; border-radius:50%;
  background:rgba(255,255,255,0.04); pointer-events:none;
}
.cta-banner h2 { 
  color:#fff; font-size:2rem; font-weight:800; 
  margin-bottom:12px; position:relative; z-index:1;
  letter-spacing:-0.02em;
}
.cta-banner p { color:rgba(255,255,255,0.8); margin-bottom:28px; position:relative; z-index:1; font-size:1.05rem; }
.cta-banner .btn-primary { 
  background:#fff; color:#3D3226; 
  box-shadow:0 6px 24px rgba(0,0,0,0.15);
  position:relative; z-index:1;
}
.cta-banner .btn-primary:hover { 
  background:#FAF7F2; 
  box-shadow:0 10px 32px rgba(0,0,0,0.2);
}

/* 页脚 */
.site-footer { 
  padding:56px 0 28px; 
  background:#3D3226; color:rgba(255,255,255,0.75); 
}
.site-footer .container { }
.footer-grid { 
  display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; 
}
.footer-brand h3 { color:#fff; font-weight:700; font-size:1.1rem; margin-bottom:10px; }
.footer-brand p { font-size:0.9rem; opacity:0.7; line-height:1.7; }
.footer-col h4 { color:#fff; font-weight:700; font-size:0.95rem; margin-bottom:14px; }
.footer-col ul { list-style:none; }
.footer-col ul li { margin-bottom:8px; }
.footer-col ul li a { 
  color:rgba(255,255,255,0.6); text-decoration:none; font-size:0.88rem; 
  transition:color 0.2s; 
}
.footer-col ul li a:hover { color:#D4A843; }
.footer-bottom { 
  border-top:1px solid rgba(255,255,255,0.1); 
  margin-top:40px; padding-top:20px; text-align:center; 
  font-size:0.85rem; color:rgba(255,255,255,0.5); 
}

/* 工具类 */
.text-accent { color:#C67A4B; }
.text-center { text-align:center; }
.seo-description { 
  max-width:600px; margin:0 auto 48px; opacity:0.7; 
  color:#5C6B4F; line-height:1.7; font-size:0.95rem;
}
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* 响应式 */
@media (max-width: 1024px) {
  .hero .container { grid-template-columns:1fr; gap:32px; }
  .hero-image { max-width:500px; margin:0 auto; }
  .hero h1 { font-size:2.4rem; }
}

@media (max-width: 768px) {
  .section { padding:56px 0; }
  .feature-block { grid-template-columns:1fr; gap:32px; }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .main-nav { display:none; }
  .menu-toggle { display:flex; }
  .main-nav.open { 
    display:flex; flex-direction:column; position:absolute; 
    top:68px; left:0; width:100%; background:#FAF7F2; 
    padding:24px; gap:16px; border-bottom:1px solid rgba(92,122,58,0.1);
    box-shadow:0 12px 24px rgba(61,50,38,0.06);
  }
  .hero { min-height:auto; padding-top:100px; padding-bottom:40px; }
  .hero h1 { font-size:2rem; }
  .hero p { font-size:1rem; }
  .section-title { font-size:1.7rem; }
  .cta-banner h2 { font-size:1.5rem; }
}

@media (max-width: 480px) {
  .cards-grid,.content-wall,.stats-bar { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; }
  .hero-buttons { flex-direction:column; align-items:stretch; }
  .hero-buttons .btn { justify-content:center; }
  .hero h1 { font-size:1.7rem; }
  .section-title { font-size:1.4rem; }
  .container { padding:0 16px; }
  .header-inner { padding:0 16px; }
  .stats-bar { grid-template-columns:1fr 1fr; gap:12px; }
  .stat-number { font-size:2rem; }
}