*, *::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:#0a0a0f; 
  color:#e8e6e3; 
}

.container { 
  max-width:1200px; 
  margin:0 auto; 
  padding:0 24px; 
}

.section { 
  padding:80px 0; 
  position:relative; 
}

.section:nth-child(even) { 
  background:#111118; 
}

/* 导航 — 固定顶部 */
.site-header { 
  position:fixed; 
  top:0; 
  left:0; 
  width:100%; 
  z-index:1000; 
  background:rgba(10,10,15,0.92); 
  backdrop-filter:blur(12px); 
  border-bottom:1px solid rgba(255,215,0,0.15); 
}

.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:8px; 
  font-weight:700; 
  font-size:1.2rem; 
  text-decoration:none; 
  color:#ffd700; 
  letter-spacing:1px; 
}

.logo-icon { 
  width:36px; 
  height:36px; 
  border-radius:8px; 
  display:flex; 
  align-items:center; 
  justify-content:center; 
  font-size:1.2rem; 
  background:linear-gradient(135deg, #ffd700, #ff8c00); 
  color:#0a0a0f; 
  font-weight:800; 
}

.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; 
  transition:0.3s; 
  color:#b0aea8; 
  position:relative; 
}

.main-nav a:hover { 
  color:#ffd700; 
}

.main-nav a::after { 
  content:''; 
  position:absolute; 
  bottom:-4px; 
  left:0; 
  width:0; 
  height:2px; 
  background:#ffd700; 
  transition:0.3s; 
}

.main-nav a:hover::after { 
  width:100%; 
}

.nav-cta { 
  padding:8px 20px; 
  border-radius:8px; 
  color:#0a0a0f!important; 
  font-weight:600; 
  background:linear-gradient(135deg, #ffd700, #ff8c00); 
  transition:0.3s; 
}

.nav-cta:hover { 
  transform:scale(1.05); 
  box-shadow:0 0 20px rgba(255,215,0,0.3); 
}

.menu-toggle { 
  display:none; 
  background:none; 
  border:none; 
  color:#ffd700; 
  font-size:1.5rem; 
  cursor:pointer; 
}

/* 首页Hero */
.hero { 
  min-height:80vh; 
  display:flex; 
  align-items:center; 
  position:relative; 
  overflow:hidden; 
}

.hero::before { 
  content:''; 
  position:absolute; 
  top:-30%; 
  right:-20%; 
  width:600px; 
  height:600px; 
  background:radial-gradient(circle, rgba(255,215,0,0.06), transparent 70%); 
  pointer-events:none; 
}

.hero-content { 
  max-width:720px; 
  position:relative; 
  z-index:1; 
}

.hero-eyebrow { 
  display:inline-block; 
  font-size:0.85rem; 
  font-weight:600; 
  padding:6px 18px; 
  border-radius:20px; 
  margin-bottom:20px; 
  background:rgba(255,215,0,0.1); 
  color:#ffd700; 
  border:1px solid rgba(255,215,0,0.2); 
  letter-spacing:2px; 
}

.hero h1 { 
  font-size:3.2rem; 
  line-height:1.15; 
  margin-bottom:20px; 
  font-weight:800; 
  letter-spacing:-0.5px; 
  background:linear-gradient(to right, #fff, #ffd700); 
  -webkit-background-clip:text; 
  -webkit-text-fill-color:transparent; 
  background-clip:text; 
}

.hero p { 
  font-size:1.15rem; 
  opacity:0.6; 
  max-width:560px; 
  margin-bottom:36px; 
  line-height:1.7; 
}

.hero-buttons { 
  display:flex; 
  gap:14px; 
}

.hero-image { 
  border-radius:16px; 
  overflow:hidden; 
  box-shadow:0 20px 60px rgba(255,215,0,0.1); 
}

.hero-image img { 
  width:100%; 
  height:auto; 
  display:block; 
}

/* 按钮 */
.btn { 
  display:inline-flex; 
  align-items:center; 
  gap:8px; 
  padding:14px 32px; 
  border-radius:8px; 
  font-weight:600; 
  cursor:pointer; 
  border:none; 
  text-decoration:none; 
  transition:0.3s; 
  font-size:0.95rem; 
}

.btn-primary { 
  color:#0a0a0f; 
  background:linear-gradient(135deg, #ffd700, #ff8c00); 
}

.btn-primary:hover { 
  transform:translateY(-2px); 
  box-shadow:0 8px 25px rgba(255,215,0,0.3); 
}

.btn-outline { 
  background:transparent; 
  border:1.5px solid rgba(255,215,0,0.3); 
  color:#ffd700; 
}

.btn-outline:hover { 
  border-color:#ffd700; 
  background:rgba(255,215,0,0.05); 
}

/* 标签/标题 */
.section-label { 
  display:inline-block; 
  font-size:0.8rem; 
  font-weight:600; 
  letter-spacing:3px; 
  margin-bottom:12px; 
  color:#ffd700; 
  text-transform:uppercase; 
}

.section-title { 
  font-size:2.4rem; 
  margin-bottom:14px; 
  font-weight:700; 
  letter-spacing:-0.3px; 
}

.section-desc { 
  max-width:600px; 
  opacity:0.6; 
  margin-bottom:40px; 
  line-height:1.7; 
}

/* 卡片网格 */
.cards-grid { 
  display:grid; 
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); 
  gap:24px; 
}

.category-card { 
  border-radius:14px; 
  padding:32px; 
  border:1px solid rgba(255,215,0,0.08); 
  transition:0.3s; 
  background:rgba(255,255,255,0.02); 
  position:relative; 
  overflow:hidden; 
}

.category-card::before { 
  content:''; 
  position:absolute; 
  top:0; 
  left:0; 
  width:100%; 
  height:3px; 
  background:linear-gradient(90deg, #ffd700, #ff8c00); 
  opacity:0; 
  transition:0.3s; 
}

.category-card:hover::before { 
  opacity:1; 
}

.category-card:hover { 
  transform:translateY(-4px); 
  box-shadow:0 10px 30px rgba(255,215,0,0.08); 
  border-color:rgba(255,215,0,0.2); 
}

.card-icon { 
  width:48px; 
  height:48px; 
  border-radius:12px; 
  display:flex; 
  align-items:center; 
  justify-content:center; 
  margin-bottom:16px; 
  font-size:1.4rem; 
  background:rgba(255,215,0,0.1); 
  color:#ffd700; 
}

.card-link { 
  font-weight:600; 
  font-size:0.85rem; 
  text-decoration:none; 
  color:#ffd700; 
  display:inline-flex; 
  align-items:center; 
  gap:6px; 
  transition:0.3s; 
}

.card-link:hover { 
  gap:10px; 
}

/* 特性块 */
.feature-block { 
  display:grid; 
  grid-template-columns:1fr 1fr; 
  gap:56px; 
  align-items:center; 
}

.feature-image { 
  border-radius:16px; 
  overflow:hidden; 
  box-shadow:0 10px 40px rgba(0,0,0,0.3); 
}

.feature-image img { 
  width:100%; 
  height:auto; 
  display:block; 
}

.feature-text { 
  padding:20px 0; 
}

.feature-list { 
  list-style:none; 
  margin-top:20px; 
}

.feature-list li { 
  padding:10px 0; 
  display:flex; 
  align-items:center; 
  gap:10px; 
  font-size:1rem; 
  border-bottom:1px solid rgba(255,215,0,0.05); 
}

.feature-list li::before { 
  content:'✦'; 
  font-weight:700; 
  color:#ffd700; 
}

/* 数据条 */
.stats-bar { 
  display:grid; 
  grid-template-columns:repeat(4,1fr); 
  gap:24px; 
  text-align:center; 
}

.stat-item { 
  padding:28px 16px; 
  border-radius:14px; 
  border:1px solid rgba(255,215,0,0.08); 
  background:rgba(255,255,255,0.02); 
  transition:0.3s; 
}

.stat-item:hover { 
  border-color:rgba(255,215,0,0.2); 
  transform:translateY(-2px); 
}

.stat-number { 
  font-size:2.6rem; 
  font-weight:800; 
  background:linear-gradient(135deg, #ffd700, #ff8c00); 
  -webkit-background-clip:text; 
  -webkit-text-fill-color:transparent; 
  background-clip:text; 
  line-height:1; 
}

.stat-label { 
  font-size:0.9rem; 
  opacity:0.5; 
  margin-top:8px; 
  text-transform:uppercase; 
  letter-spacing:1px; 
}

/* 内容墙 */
.content-wall { 
  display:grid; 
  grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); 
  gap:24px; 
}

.content-wall-item { 
  border-radius:14px; 
  overflow:hidden; 
  border:1px solid rgba(255,215,0,0.08); 
  transition:0.3s; 
  background:rgba(255,255,255,0.02); 
}

.content-wall-item:hover { 
  transform:translateY(-4px); 
  box-shadow:0 10px 30px rgba(255,215,0,0.08); 
  border-color:rgba(255,215,0,0.2); 
}

.content-wall-item img { 
  width:100%; 
  height:200px; 
  object-fit:cover; 
}

.content-wall-body { 
  padding:20px; 
}

.content-wall-body h3 { 
  font-size:1.1rem; 
  margin-bottom:8px; 
}

/* FAQ */
.faq-list { 
  max-width:800px; 
  margin:0 auto; 
}

.faq-item { 
  border:1px solid rgba(255,215,0,0.1); 
  border-radius:12px; 
  margin-bottom:10px; 
  overflow:hidden; 
  cursor:pointer; 
  transition:0.3s; 
  background:rgba(255,255,255,0.02); 
}

.faq-item:hover { 
  border-color:rgba(255,215,0,0.2); 
}

.faq-item .faq-question { 
  padding:18px 22px; 
  font-weight:600; 
  display:flex; 
  justify-content:space-between; 
  align-items:center; 
  font-size:1rem; 
}

.faq-item .faq-question::after { 
  content:'+'; 
  font-size:1.4rem; 
  color:#ffd700; 
  transition:0.3s; 
}

.faq-item.open .faq-question::after { 
  content:'−'; 
}

.faq-item .faq-answer { 
  padding:0 22px 18px; 
  display:none; 
  opacity:0.7; 
  line-height:1.7; 
}

.faq-item.open .faq-answer { 
  display:block; 
}

/* CTA横幅 */
.cta-banner { 
  padding:64px 24px; 
  text-align:center; 
  border-radius:16px; 
  background:linear-gradient(135deg, #ffd700, #ff8c00); 
  color:#0a0a0f; 
  position:relative; 
  overflow:hidden; 
}

.cta-banner::before { 
  content:''; 
  position:absolute; 
  top:-50%; 
  left:-50%; 
  width:200%; 
  height:200%; 
  background:radial-gradient(circle, rgba(255,255,255,0.1), transparent 60%); 
  pointer-events:none; 
}

.cta-banner h2 { 
  color:#0a0a0f; 
  font-size:2.2rem; 
  margin-bottom:16px; 
  position:relative; 
}

.cta-banner p { 
  opacity:0.8; 
  margin-bottom:24px; 
  position:relative; 
}

.cta-banner .btn-primary { 
  background:#0a0a0f; 
  color:#ffd700; 
}

.cta-banner .btn-primary:hover { 
  box-shadow:0 8px 25px rgba(0,0,0,0.3); 
}

/* 页脚 */
.site-footer { 
  padding:64px 0 32px; 
  border-top:1px solid rgba(255,215,0,0.08); 
}

.footer-grid { 
  display:grid; 
  grid-template-columns:2fr 1fr 1fr 1fr; 
  gap:40px; 
}

.footer-brand { 
  max-width:300px; 
}

.footer-brand h3 { 
  font-size:1.3rem; 
  margin-bottom:12px; 
  color:#ffd700; 
}

.footer-col h4 { 
  font-size:0.95rem; 
  margin-bottom:16px; 
  color:#ffd700; 
  text-transform:uppercase; 
  letter-spacing:1px; 
}

.footer-col a { 
  display:block; 
  color:#b0aea8; 
  text-decoration:none; 
  padding:6px 0; 
  font-size:0.9rem; 
  transition:0.3s; 
}

.footer-col a:hover { 
  color:#ffd700; 
  padding-left:4px; 
}

.footer-bottom { 
  border-top:1px solid rgba(255,215,0,0.08); 
  margin-top:40px; 
  padding-top:20px; 
  text-align:center; 
  font-size:0.85rem; 
  opacity:0.5; 
}

/* 工具类 */
.text-accent { 
  color:#ffd700; 
}

.text-center { 
  text-align:center; 
}

.seo-description { 
  max-width:600px; 
  margin:0 auto 48px; 
  opacity:0.6; 
  line-height:1.7; 
}

.mt-0 { 
  margin-top:0; 
}

.mb-0 { 
  margin-bottom:0; 
}

/* ⚠️ 响应式 */
@media (max-width: 768px) {
  .feature-block { 
    grid-template-columns:1fr; 
    gap:32px; 
  }
  
  .stats-bar { 
    grid-template-columns:repeat(2,1fr); 
  }
  
  .footer-grid { 
    grid-template-columns:1fr 1fr; 
    gap:32px; 
  }
  
  .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:rgba(10,10,15,0.98); 
    padding:24px; 
    gap:16px; 
    border-bottom:1px solid rgba(255,215,0,0.15); 
  }
  
  .main-nav.open a { 
    padding:8px 0; 
  }
  
  .hero h1 { 
    font-size:2.2rem; 
  }
  
  .section-title { 
    font-size:1.8rem; 
  }
}

@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; 
  }
  
  .hero h1 { 
    font-size:1.8rem; 
  }
  
  .section { 
    padding:48px 0; 
  }
  
  .stat-number { 
    font-size:2rem; 
  }
  
  .cta-banner { 
    padding:40px 20px; 
  }
  
  .cta-banner h2 { 
    font-size:1.6rem; 
  }
}