*, *::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:#fefcf5; }

/* ===== 核心布局 ===== */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; }
.section:nth-child(even) { background:#f6f3e8; }

/* ===== 导航 ===== */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(254,252,245,0.93); backdrop-filter:blur(12px); border-bottom:1px solid #e3dcc8; }
.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:700; font-size:1.25rem; text-decoration:none; color:#3a5a40; letter-spacing:-0.5px; }
.logo-icon { width:38px; height:38px; border-radius:50%; background:#c8b6a0; display:flex; align-items:center; justify-content:center; font-size:1.1rem; color:#fefcf5; box-shadow:0 2px 8px rgba(200,182,160,0.3); }
.main-nav { display:flex; align-items:center; gap:28px; list-style:none; }
.main-nav a { text-decoration:none; font-size:0.9rem; font-weight:500; color:#5c6b5a; transition:0.2s; letter-spacing:0.3px; }
.main-nav a:hover { color:#3a5a40; }
.nav-cta { padding:8px 22px; border-radius:30px; background:#3a5a40; color:#fefcf5!important; font-weight:600; box-shadow:0 2px 10px rgba(58,90,64,0.2); }
.nav-cta:hover { background:#2d4731!important; transform:translateY(-1px); }
.menu-toggle { display:none; background:none; border:none; font-size:1.4rem; cursor:pointer; color:#3a5a40; }

/* ===== Hero ===== */
.hero { min-height:75vh; display:flex; align-items:center; position:relative; overflow:hidden; }
.hero::before { content:''; position:absolute; top:-20%; right:-10%; width:500px; height:500px; background:radial-gradient(circle,rgba(200,182,160,0.15) 0%,transparent 70%); border-radius:50%; pointer-events:none; }
.hero-content { max-width:720px; position:relative; z-index:1; }
.hero-eyebrow { display:inline-block; font-size:0.8rem; font-weight:600; padding:5px 16px; border-radius:30px; margin-bottom:18px; background:#e3dcc8; color:#3a5a40; letter-spacing:1px; }
.hero h1 { font-size:3rem; line-height:1.15; margin-bottom:20px; color:#2d4731; font-weight:800; letter-spacing:-1px; }
.hero p { font-size:1.1rem; color:#5c6b5a; max-width:560px; margin-bottom:34px; line-height:1.6; }
.hero-buttons { display:flex; gap:14px; }
.hero-image { border-radius:16px; overflow:hidden; box-shadow:0 8px 30px rgba(58,90,64,0.08); }
.hero-image img { width:100%; height:auto; display:block; }

/* ===== 按钮 ===== */
.btn { display:inline-flex; align-items:center; gap:8px; padding:12px 28px; border-radius:30px; font-weight:600; cursor:pointer; border:none; text-decoration:none; transition:0.25s; font-size:0.9rem; }
.btn-primary { background:#3a5a40; color:#fefcf5; box-shadow:0 3px 12px rgba(58,90,64,0.2); }
.btn-primary:hover { background:#2d4731; transform:translateY(-2px); box-shadow:0 6px 20px rgba(58,90,64,0.25); }
.btn-outline { background:transparent; border:1.5px solid #c8b6a0; color:#3a5a40; }
.btn-outline:hover { background:#c8b6a0; color:#fefcf5; }

/* ===== 标签/标题 ===== */
.section-label { display:inline-block; font-size:0.75rem; font-weight:600; letter-spacing:2.5px; margin-bottom:12px; color:#c8b6a0; text-transform:uppercase; }
.section-title { font-size:2.2rem; margin-bottom:14px; color:#2d4731; font-weight:700; letter-spacing:-0.5px; }
.section-desc { max-width:600px; color:#5c6b5a; margin-bottom:40px; line-height:1.6; }

/* ===== 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; background:#fefcf5; border:1px solid #e3dcc8; transition:0.3s; }
.category-card:hover { transform:translateY(-4px); box-shadow:0 8px 28px rgba(58,90,64,0.08); border-color:#c8b6a0; }
.card-icon { width:50px; height:50px; border-radius:14px; background:#e3dcc8; display:flex; align-items:center; justify-content:center; margin-bottom:18px; font-size:1.4rem; color:#3a5a40; }
.card-link { font-weight:600; font-size:0.85rem; text-decoration:none; color:#3a5a40; display:inline-flex; align-items:center; gap:6px; }
.card-link::after { content:'→'; transition:0.2s; }
.card-link:hover::after { transform:translateX(4px); }

/* ===== 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 6px 24px rgba(58,90,64,0.06); }
.feature-image img { width:100%; height:auto; display:block; }
.feature-text { }
.feature-list { list-style:none; margin-top:8px; }
.feature-list li { padding:8px 0; display:flex; align-items:center; gap:10px; color:#5c6b5a; font-size:0.95rem; }
.feature-list li::before { content:'✓'; font-weight:700; color:#3a5a40; font-size:1.1rem; }

/* ===== 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:16px; background:#fefcf5; border:1px solid #e3dcc8; transition:0.2s; }
.stat-item:hover { border-color:#c8b6a0; }
.stat-number { font-size:2.4rem; font-weight:800; color:#2d4731; letter-spacing:-1px; }
.stat-label { font-size:0.9rem; color:#8a9a88; margin-top:6px; }

/* ===== 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; background:#fefcf5; border:1px solid #e3dcc8; transition:0.3s; }
.content-wall-item:hover { transform:translateY(-4px); box-shadow:0 8px 28px rgba(58,90,64,0.08); border-color:#c8b6a0; }
.content-wall-item img { width:100%; height:200px; object-fit:cover; display:block; }
.content-wall-body { padding:20px; }
.content-wall-body h4 { color:#2d4731; margin-bottom:6px; }
.content-wall-body p { font-size:0.85rem; color:#5c6b5a; }

/* ===== FAQ ===== */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:1px solid #e3dcc8; border-radius:14px; margin-bottom:10px; overflow:hidden; cursor:pointer; background:#fefcf5; transition:0.2s; }
.faq-item:hover { border-color:#c8b6a0; }
.faq-item .faq-question { padding:18px 22px; font-weight:600; display:flex; justify-content:space-between; color:#2d4731; font-size:0.95rem; }
.faq-item .faq-question::after { content:'+'; font-size:1.2rem; color:#c8b6a0; transition:0.2s; }
.faq-item.open .faq-question::after { content:'−'; }
.faq-item .faq-answer { padding:0 22px 18px; display:none; color:#5c6b5a; line-height:1.5; }
.faq-item.open .faq-answer { display:block; }

/* ===== CTA ===== */
.cta-banner { padding:60px 24px; text-align:center; border-radius:20px; background:linear-gradient(135deg,#3a5a40 0%,#2d4731 100%); color:#fefcf5; box-shadow:0 8px 30px rgba(58,90,64,0.15); }
.cta-banner h2 { color:#fefcf5; font-size:1.8rem; margin-bottom:12px; }
.cta-banner p { color:rgba(254,252,245,0.8); margin-bottom:24px; }
.cta-banner .btn-primary { background:#fefcf5; color:#3a5a40; box-shadow:0 3px 12px rgba(0,0,0,0.08); }
.cta-banner .btn-primary:hover { background:#e3dcc8; }

/* ===== 页脚 ===== */
.site-footer { padding:56px 0 28px; background:#2d4731; color:rgba(254,252,245,0.85); }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
.footer-brand { }
.footer-brand .logo { color:#fefcf5; }
.footer-col { }
.footer-col h5 { color:#fefcf5; font-weight:600; margin-bottom:14px; font-size:0.9rem; }
.footer-col a { display:block; color:rgba(254,252,245,0.65); text-decoration:none; padding:4px 0; font-size:0.85rem; transition:0.2s; }
.footer-col a:hover { color:#fefcf5; }
.footer-bottom { border-top:1px solid rgba(254,252,245,0.1); margin-top:40px; padding-top:20px; text-align:center; font-size:0.82rem; color:rgba(254,252,245,0.5); }

/* ===== 工具类 ===== */
.text-accent { color:#3a5a40; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; color:#5c6b5a; line-height:1.6; }
.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; }
  .main-nav { display:none; }
  .menu-toggle { display:flex; align-items:center; justify-content:center; }
  .main-nav.open { display:flex; flex-direction:column; position:absolute; top:68px; left:0; width:100%; background:#fefcf5; padding:24px; gap:16px; border-bottom:1px solid #e3dcc8; }
  .hero h1 { font-size:2.2rem; }
}
@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-title { font-size:1.6rem; }
}