```css
/* 基础重置 */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
body { 
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, -apple-system, sans-serif; 
  overflow-x:hidden;
  background: #FFF9F0;
  color: #3D3834;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* 核心布局 — 必须居中 */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:100px 0; position:relative; }
.section:nth-child(even) { background:#F7EFE3; }

/* 导航 — 固定顶部 */
.site-header { 
  position:fixed; top:0; left:0; width:100%; z-index:1000; 
  background:rgba(255,249,240,0.92); 
  backdrop-filter:blur(20px) saturate(1.4); 
  -webkit-backdrop-filter:blur(20px) saturate(1.4);
  border-bottom:1px solid rgba(217,101,78,0.12); 
}
.header-inner { 
  display:flex; align-items:center; justify-content:space-between; 
  height:72px; 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:#3D3834; letter-spacing:-0.02em; 
}
.logo-icon { 
  width:40px; height:40px; border-radius:50%; 
  display:flex; align-items:center; justify-content:center; 
  background:linear-gradient(135deg,#D9654E,#E9B44C); 
  color:#fff; font-size:1.1rem;
  box-shadow:0 4px 14px rgba(217,101,78,0.3); 
}
.main-nav { display:flex; align-items:center; gap:28px; list-style:none; }
.main-nav a { 
  text-decoration:none; font-size:0.9rem; font-weight:600; 
  color:#6B6560; transition:0.25s; position:relative; 
}
.main-nav a:hover { color:#D9654E; }
.main-nav a::after { 
  content:''; position:absolute; bottom:-5px; left:0; 
  width:0; height:2px; background:linear-gradient(90deg,#D9654E,#E9B44C); 
  transition:0.3s; border-radius:2px; 
}
.main-nav a:hover::after { width:100%; }
.nav-cta { 
  padding:10px 24px; border-radius:50px; 
  color:#fff!important; font-weight:700; 
  background:linear-gradient(135deg,#D9654E,#C2513C); 
  box-shadow:0 4px 16px rgba(217,101,78,0.35); 
  transition:0.3s;
}
.nav-cta:hover { transform:translateY(-2px); box-shadow:0 8px 24px rgba(217,101,78,0.45); }
.main-nav a.nav-cta::after { display:none; }
.menu-toggle { 
  display:none; 
  background:transparent; border:1px solid rgba(61,56,52,0.15); 
  width:44px; height:44px; border-radius:50px; 
  cursor:pointer; align-items:center; justify-content:center;
  flex-direction:column; gap:4px; transition:0.2s;
}
.menu-toggle:hover { border-color:#D9654E; }
.menu-toggle span { width:18px; height:2px; background:#3D3834; border-radius:2px; transition:0.2s; }
.menu-toggle:hover span { background:#D9654E; }

/* 首页Hero */
.hero { 
  min-height:80vh; display:flex; align-items:center; 
  position:relative; padding:140px 0 80px;
  background-image: radial-gradient(rgba(217,101,78,0.05) 1px, transparent 1px);
  background-size:26px 26px;
  overflow:hidden;
}
.hero::before { 
  content:''; position:absolute; 
  width:520px; height:520px; border-radius:50%;
  background:radial-gradient(circle, rgba(233,180,76,0.14) 0%, rgba(233,180,76,0) 70%);
  top:-120px; right:-100px; z-index:0;
}
.hero::after {
  content:''; position:absolute;
  width:360px; height:360px; border-radius:50%;
  background:radial-gradient(circle, rgba(74,128,114,0.12) 0%, rgba(74,128,114,0) 70%);
  bottom:-100px; left:50%; z-index:0;
}
.hero-content { max-width:720px; position:relative; z-index:2; }
.hero-eyebrow { 
  display:inline-block; font-size:0.82rem; font-weight:800; 
  padding:7px 18px; border-radius:50px; margin-bottom:22px; 
  background:rgba(217,101,78,0.09); 
  color:#D9654E; 
  letter-spacing:1.5px; 
  text-transform:uppercase;
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.6);
}
.hero h1 { 
  font-size:clamp(2.6rem, 5.5vw, 4.2rem); 
  line-height:1.12; margin-bottom:22px; 
  font-weight:800; letter-spacing:-0.035em; 
  color:#3D3834;
}
.hero h1 .text-accent { 
  color:#D9654E;
  position:relative;
  display:inline-block;
}
.hero h1 .text-accent::after {
  content:''; position:absolute; bottom:4px; left:0;
  width:100%; height:8px;
  background:rgba(233,180,76,0.25);
  border-radius:4px; z-index:-1;
}
.hero p { 
  font-size:1.12rem; opacity:0.75; 
  max-width:560px; margin-bottom:36px; line-height:1.85; 
}
.hero-buttons { display:flex; gap:14px; flex-wrap:wrap; }
.hero-image { 
  border-radius:24px; overflow:hidden; 
  box-shadow:0 24px 60px rgba(61,56,52,0.12); 
  position:relative;
  z-index:1;
}
.hero-image img { width:100%; height:auto; display:block; }

/* 按钮 */
.btn { 
  display:inline-flex; align-items:center; gap:10px; 
  padding:14px 32px; border-radius:50px; 
  font-weight:700; cursor:pointer; border:none; 
  text-decoration:none; transition:0.3s; 
  font-size:0.95rem; 
  letter-spacing:0.02em;
}
.btn-primary { 
  background:linear-gradient(135deg,#D9654E,#C2513C); 
  color:#fff; 
  box-shadow:0 6px 20px rgba(217,101,78,0.35); 
}
.btn-primary:hover { 
  transform:translateY(-3px); 
  box-shadow:0 12px 32px rgba(217,101,78,0.45); 
}
.btn-outline { 
  background:transparent; border:2px solid #4A8072; 
  color:#4A8072; 
}
.btn-outline:hover { 
  background:rgba(74,128,114,0.08); 
  transform:translateY(-3px);
  border-color:#3B6A5F;
  color:#3B6A5F;
}

/* 标签/标题 */
.section-label { 
  display:inline-block; 
  font-size:0.8rem; font-weight:800; 
  letter-spacing:2.5px; margin-bottom:14px; 
  color:#D9654E; 
  text-transform:uppercase;
  background:rgba(217,101,78,0.08);
  padding:6px 18px;
  border-radius:50px;
}
.section-title { 
  font-size:clamp(1.9rem, 3.5vw, 2.5rem); 
  margin-bottom:14px; 
  font-weight:800; letter-spacing:-0.025em; 
  line-height:1.28; color:#3D3834;
}
.section-desc { max-width:600px; opacity:0.75; margin-bottom:44px; line-height:1.75; }

/* 卡片网格 */
.cards-grid { 
  display:grid; 
  grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); 
  gap:28px; 
}
.category-card { 
  border-radius:20px; 
  padding:32px 28px; 
  background:#FFFFFF; 
  border:1px solid rgba(61,56,52,0.05); 
  transition:0.35s; 
  position:relative;
  box-shadow:0 4px 20px rgba(61,56,52,0.04);
  overflow:hidden;
}
.category-card::before { 
  content:''; position:absolute; top:0; left:0; 
  width:100%; height:4px; 
  background:linear-gradient(90deg,#D9654E,#E9B44C);
  opacity:0; transition:0.35s;
}
.category-card:hover { 
  transform:translateY(-6px); 
  box-shadow:0 16px 44px rgba(61,56,52,0.1); 
  border-color:rgba(217,101,78,0.18);
}
.category-card:hover::before { opacity:1; }
.card-icon { 
  width:54px; height:54px; border-radius:16px; 
  display:flex; align-items:center; justify-content:center; 
  margin-bottom:20px; font-size:1.4rem; 
  background:linear-gradient(135deg,rgba(217,101,78,0.1),rgba(233,180,76,0.12));
}
.category-card h3 { font-size:1.15rem; margin-bottom:8px; font-weight:700; }
.category-card p { font-size:0.88rem; opacity:0.7; line-height:1.6; margin-bottom:16px; }
.card-link { 
  font-weight:700; font-size:0.85rem; 
  text-decoration:none; color:#4A8072; transition:0.2s;
  display:inline-flex; align-items:center; gap:6px;
}
.card-link:hover { color:#D9654E; gap:10px; }

/* 特性块 */
.feature-block { 
  display:grid; grid-template-columns:1fr 1fr; 
  gap:64px; align-items:center; 
}
.feature-image { 
  border-radius:24px; overflow:hidden; 
  box-shadow:0 20px 60px rgba(61,56,52,0.1);
  position:relative;
}
.feature-image::after { 
  content:''; position:absolute; 
  bottom:-24px; right:-24px; 
  width:120px; height:120px; border-radius:50%;
  background:radial-gradient(circle, rgba(233,180,76,0.18), rgba(233,180,76,0.03));
  z-index:-1;
}
.feature-image img { width:100%; height:auto; display:block; transition:0.5s; }
.feature-block:hover .feature-image img { transform:scale(1.03); }
.feature-text { padding:20px 0; }
.feature-text .section-label { margin-bottom:12px; }
.feature-text h3 { 
  font-size:0.85rem; font-weight:800; letter-spacing:2px; 
  color:#4A8072; margin-bottom:14px; text-transform:uppercase; 
}
.feature-text h4 { font-size:1.4rem; margin-bottom:14px; color:#3D3834; }
.feature-list { list-style:none; margin-top:22px; }
.feature-list li { 
  padding:7px 0; display:flex; align-items:center; 
  gap:10px; color:#3D3834; font-size:0.95rem;
}
.feature-list li::before { 
  content:'✦'; font-weight:700; color:#D9654E; 
  font-size:0.85rem;
}

/* 数据条 */
.stats-bar { 
  display:grid; grid-template-columns:repeat(4,1fr); 
  gap:28px; text-align:center; 
}
.stat-item { 
  padding:36px 20px; 
  border-radius:20px; 
  border:1px solid rgba(61,56,52,0.06);
  background:#FFFFFF;
  box-shadow:0 4px 20px rgba(61,56,52,0.04);
  position:relative;
  transition:0.35s;
  overflow:hidden;
}
.stat-item::after {
  content:''; position:absolute;
  top:0; left:0; width:100%;
  height:4px;
}
.stat-item:nth-child(1)::after { background:#D9654E; }
.stat-item:nth-child(2)::after { background:#E9B44C; }
.stat-item:nth-child(3)::after { background:#4A8072; }
.stat-item:nth-child(4)::after { background:#B48B9E; }
.stat-item:hover { 
  transform:translateY(-5px); 
  box-shadow:0 16px 40px rgba(61,56,52,0.09); 
}
.stat-number { 
  font-size:2.5rem; font-weight:800; 
  color:#3D3834; letter-spacing:-0.03em; line-height:1.2; 
}
.stat-label { 
  font-size:0.9rem; opacity:0.6; 
  margin-top:8px; font-weight:500;
}

/* 内容墙 */
.content-wall { 
  display:grid; 
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); 
  gap:28px; 
}
.content-wall-item { 
  border-radius:20px; overflow:hidden; 
  border:1px solid rgba(61,56,52,0.05);
  background:#fff;
  transition:0.35s;
  box-shadow:0 4px 16px rgba(61,56,52,0.04);
}
.content-wall-item:hover { 
  transform:translateY(-6px); 
  box-shadow:0 20px 48px rgba(61,56,52,0.1);
  border-color:rgba(217,101,78,0.15);
}
.content-wall-item img { 
  width:100%; height:200px; object-fit:cover; 
  transition:0.5s;
}
.content-wall-item:hover img { transform:scale(1.04); }
.content-wall-body { padding:22px 24px; }
.content-wall-body h4 { font-size:1.05rem; margin-bottom:6px; color:#3D3834; }
.content-wall-body p { font-size:0.85rem; opacity:0.65; line-height:1.6; }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { 
  background:#fff; 
  border:1px solid rgba(61,56,52,0.06); 
  border-radius:16px; 
  margin-bottom:12px; 
  overflow:hidden; 
  cursor:pointer; 
  transition:0.25s;
  box-shadow:0 2px 8px rgba(61,56,52,0.02);
}
.faq-item:hover { 
  border-color:rgba(217,101,78,0.25); 
  box-shadow:0 6px 20px rgba(61,56,52,0.05);
}
.faq-item .faq-question { 
  padding:18px 24px; font-weight:700; 
  display:flex; justify-content:space-between; 
  align-items:center; color:#3D3834;
  font-size:0.98rem;
}
.faq-item .faq-question::after { 
  content:'+'; font-size:1.4rem; color:#D9654E; 
  font-weight:400; transition:0.3s;
}
.faq-item.open .faq-question::after { transform:rotate(45deg); }
.faq-item .faq-answer { 
  padding:0 24px 20px; display:none; 
  opacity:0.75; line-height:1.75; 
  font-size:0.93rem;
}
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 */
.cta-banner { 
  padding:72px 24px; 
  text-align:center; 
  border-radius:28px; 
  background:linear-gradient(135deg,#4A8072 0%,#2D6A5E 50%,#1F5349 100%);
  color:#fff;
  position:relative;
  overflow:hidden;
  box-shadow:0 24px 64px rgba(31,83,73,0.28);
}
.cta-banner::before {
  content:''; position:absolute;
  width:220px; height:220px; border-radius:50%;
  background:rgba(233,180,76,0.15);
  top:-70px; right:-50px;
}
.cta-banner::after {
  content:''; position:absolute;
  width:180px; height:180px; border-radius:50%;
  background:rgba(217,101,78,0.2);
  bottom:-60px; left:-40px;
}
.cta-banner h2 { 
  color:#fff; font-size:clamp(1.6rem, 3vw, 2.2rem); 
  margin-bottom:14px; position:relative; z-index:1;
  letter-spacing:-0.02em;
}
.cta-banner p { 
  color:rgba(255,255,255,0.9); margin-bottom:32px; 
  position:relative; z-index:1; font-size:1.05rem;
  max-width:480px; margin-left:auto; margin-right:auto;
}
.cta-banner .btn-primary { 
  background:#fff; color:#2D6A5E; 
  box-shadow:0 6px 24px rgba(0,0,0,0.15);
  position:relative; z-index:1;
}
.cta-banner .btn-primary:hover { 
  transform:translateY(-2px);
  box-shadow:0 12px 32px rgba(0,0,0,0.2);
}

/* 页脚 */
.site-footer { 
  padding:64px 0 28px; 
  background:#F7EFE3;
  border-top:1px solid rgba(217,101,78,0.1);
}
.site-footer .container { }
.footer-grid { 
  display:grid; 
  grid-template-columns:2fr 1fr 1fr 1fr; 
  gap:48px; 
}
.footer-brand { }
.footer-brand .logo { margin-bottom:12px; }
.footer-brand p { opacity:0.6; font-size:0.9rem; margin-top:14px; line-height:1.75; max-width:280px; }
.footer-col h4 { 
  font-size:0.85rem; font-weight:800; 
  text-transform:uppercase; letter-spacing:1.5px; 
  margin-bottom:18px; color:#D9654E; 
}
.footer-col ul { list-style:none; }
.footer-col ul li { margin-bottom:10px; }
.footer-col ul a { 
  text-decoration:none; color:#3D3834; 
  opacity:0.65; font-size:0.9rem; transition:0.2s;
  display:inline-block;
}
.footer-col ul a:hover { opacity:1; color:#D9654E; transform:translateX(3px); }
.footer-bottom { 
  border-top:1px solid rgba(61,56,52,0.1); 
  margin-top:48px; padding-top:20px; 
  text-align:center; font-size:0.85rem; opacity:0.5;
}

/* 工具类 */
.text-accent { color:#D9654E; }
.text-center { text-align:center; }
.seo-description { 
  max-width:600px; margin:0 auto 48px; opacity:0.75;
  line-height:1.75;
}
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* ⚠️ 响应式 */
@media (max-width: 768px) {
  .hero { padding:110px 0 60px; min-height:60vh; }
  .hero h1 { font-size:2.2rem; }
  .feature-block { grid-template-columns:1fr; gap:40px; }
  .stats-bar { grid-template-columns:repeat(2,1fr); gap:16px; }
  .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:72px; left:0; 
    width:100%; 
    background:rgba(255,249,240,0.98);
    backdrop-filter:blur(20px);
    padding:24px; 
    gap:20px;
    border-bottom:1px solid rgba(217,101,78,0.15);
    box-shadow:0 20px 48px rgba(61,56,52,0.1);
  }
  .main-nav.open a::after { display:none; }
  .nav-cta { text-align:center; }
  .cta-banner { padding:56px 20px; }
  .cta-banner h2 { font-size:1.6rem; }
}
@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-buttons .btn { width:100%; justify-content:center; }
  .section { padding:72px 0; }
  .stat-number { font-size:2rem; }
}