*, *::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:#fdfbf7; color:#2d3e2f; }

/* 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:#f6f3ee; }

/* 导航 — 固定顶部 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(253,251,247,0.92); backdrop-filter:blur(12px); border-bottom:1px solid #d9d0c1; }
.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:#2d3e2f; letter-spacing:1px; }
.logo-icon { width:36px; height:36px; border-radius:50%; background:#e3b34d; color:#fdfbf7; display:flex; align-items:center; justify-content:center; font-size:1rem; }
.main-nav { display:flex; align-items:center; gap:24px; list-style:none; }
.main-nav a { text-decoration:none; font-size:0.9rem; font-weight:500; transition:0.2s; color:#4a5c4c; padding:4px 0; border-bottom:2px solid transparent; }
.main-nav a:hover { border-bottom-color:#e3b34d; color:#2d3e2f; }
.nav-cta { padding:8px 20px; border-radius:30px; background:#2d3e2f; color:#fdfbf7!important; font-weight:600; border-bottom:none!important; }
.menu-toggle { display:none; background:none; border:none; font-size:1.4rem; cursor:pointer; color:#2d3e2f; }

/* 首页Hero */
.hero { min-height:70vh; display:flex; align-items:center; background: linear-gradient(145deg, #fdfbf7 0%, #f0ebe1 100%); position:relative; }
.hero::after { content:'28'; position:absolute; right:-40px; top:10%; font-size:28rem; font-weight:900; color:#e3b34d; opacity:0.08; pointer-events:none; line-height:1; }
.hero-content { max-width:720px; position:relative; z-index:2; }
.hero-eyebrow { display:inline-block; font-size:0.85rem; font-weight:600; padding:4px 14px; border-radius:30px; background:#e3b34d; color:#fdfbf7; margin-bottom:16px; letter-spacing:1px; }
.hero h1 { font-size:3.2rem; line-height:1.1; margin-bottom:20px; font-weight:800; color:#1f2b20; letter-spacing:-1px; }
.hero h1 span { color:#e3b34d; }
.hero p { font-size:1.1rem; opacity:0.7; max-width:560px; margin-bottom:32px; color:#4a5c4c; }
.hero-buttons { display:flex; gap:14px; }
.hero-image { border-radius:20px; overflow:hidden; box-shadow:0 20px 40px -10px rgba(45,62,47,0.15); }
.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:0.2s; font-size:0.95rem; }
.btn-primary { background:#2d3e2f; color:#fdfbf7; box-shadow:0 4px 12px rgba(45,62,47,0.2); }
.btn-primary:hover { background:#1f2b20; transform:translateY(-2px); box-shadow:0 6px 20px rgba(45,62,47,0.3); }
.btn-outline { background:transparent; border:1.5px solid #2d3e2f; color:#2d3e2f; }
.btn-outline:hover { background:#2d3e2f; color:#fdfbf7; }

/* 标签/标题 */
.section-label { display:inline-block; font-size:0.8rem; font-weight:600; letter-spacing:3px; margin-bottom:12px; color:#e3b34d; text-transform:uppercase; }
.section-title { font-size:2.4rem; margin-bottom:14px; font-weight:700; color:#1f2b20; }
.section-desc { max-width:600px; opacity:0.7; margin-bottom:40px; color:#4a5c4c; }

/* 卡片网格 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:24px; }
.category-card { border-radius:20px; padding:28px; background:#ffffff; border:1px solid #e3dccf; transition:0.3s; box-shadow:0 2px 8px rgba(0,0,0,0.02); }
.category-card:hover { transform:translateY(-6px); box-shadow:0 12px 32px -8px rgba(45,62,47,0.12); border-color:#e3b34d; }
.card-icon { width:48px; height:48px; border-radius:16px; background:#f0ebe1; display:flex; align-items:center; justify-content:center; margin-bottom:16px; font-size:1.3rem; color:#2d3e2f; }
.card-link { font-weight:600; font-size:0.85rem; text-decoration:none; color:#e3b34d; display:inline-flex; align-items:center; gap:4px; }
.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 12px 32px -8px rgba(45,62,47,0.1); }
.feature-image img { width:100%; height:auto; display:block; }
.feature-text { }
.feature-list { list-style:none; }
.feature-list li { padding:6px 0; display:flex; align-items:center; gap:8px; color:#4a5c4c; }
.feature-list li::before { content:'✓'; font-weight:700; color:#e3b34d; }

/* 数据条 */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; }
.stat-item { padding:24px; border-radius:20px; background:#ffffff; border:1px solid #e3dccf; }
.stat-number { font-size:2.6rem; font-weight:800; color:#1f2b20; }
.stat-label { font-size:0.9rem; opacity:0.6; margin-top:6px; color:#4a5c4c; }

/* 内容墙 */
.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:24px; }
.content-wall-item { border-radius:20px; overflow:hidden; background:#ffffff; border:1px solid #e3dccf; transition:0.3s; }
.content-wall-item:hover { transform:translateY(-6px); box-shadow:0 12px 32px -8px rgba(45,62,47,0.12); }
.content-wall-item img { width:100%; height:200px; object-fit:cover; }
.content-wall-body { padding:20px; }
.content-wall-body h3 { color:#1f2b20; margin-bottom:6px; }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:1px solid #e3dccf; border-radius:16px; margin-bottom:8px; overflow:hidden; cursor:pointer; background:#ffffff; transition:0.2s; }
.faq-item:hover { border-color:#e3b34d; }
.faq-item .faq-question { padding:16px 20px; font-weight:600; display:flex; justify-content:space-between; color:#1f2b20; }
.faq-item .faq-question::after { content:'+'; font-size:1.2rem; color:#e3b34d; transition:0.2s; }
.faq-item.open .faq-question::after { content:'−'; }
.faq-item .faq-answer { padding:0 20px 16px; display:none; opacity:0.7; color:#4a5c4c; }
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 */
.cta-banner { padding:56px 24px; text-align:center; border-radius:20px; background: linear-gradient(135deg, #2d3e2f 0%, #1f2b20 100%); color:#fdfbf7; }
.cta-banner h2 { color:#fdfbf7; font-size:2rem; }
.cta-banner .btn-primary { background:#e3b34d; color:#1f2b20; box-shadow:0 4px 12px rgba(227,179,77,0.4); }
.cta-banner .btn-primary:hover { background:#d4a43c; }

/* 页脚 */
.site-footer { padding:56px 0 28px; background:#1f2b20; color:#d9d0c1; }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
.footer-brand { }
.footer-brand .logo { color:#fdfbf7; }
.footer-col h4 { color:#fdfbf7; margin-bottom:12px; font-weight:600; }
.footer-col a { display:block; color:#b0a99a; text-decoration:none; padding:3px 0; font-size:0.9rem; transition:0.2s; }
.footer-col a:hover { color:#e3b34d; }
.footer-bottom { border-top:1px solid rgba(255,255,255,0.08); margin-top:40px; padding-top:20px; text-align:center; font-size:0.85rem; color:#8a8374; }

/* 工具类 */
.text-accent { color:#e3b34d; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; opacity:0.7; color:#4a5c4c; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* ⚠️ 响应式 */
@media (max-width: 768px) {
  .feature-block { grid-template-columns:1fr; }
  .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:#fdfbf7; padding:20px; border-bottom:1px solid #d9d0c1; }
  .hero h1 { font-size:2.2rem; }
  .hero::after { font-size:12rem; right:-20px; }
}
@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; }
  .section-title { font-size:1.8rem; }
}