*, *::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:#f5f0eb; color:#2d2a24; }

.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; position:relative; }
.section:nth-child(even) { background:#ede6dd; }

/* 导航 — 黏土质感 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(245,240,235,0.92); backdrop-filter:blur(12px); border-bottom:2px solid #d4c9bc; box-shadow:0 4px 20px rgba(45,42,36,0.06); }
.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:700; font-size:1.3rem; text-decoration:none; color:#2d2a24; letter-spacing:-0.5px; }
.logo-icon { width:40px; height:40px; border-radius:30% 70% 70% 30% / 30% 30% 70% 70%; background:#d9a76a; display:flex; align-items:center; justify-content:center; font-size:1.2rem; color:#f5f0eb; box-shadow:0 3px 10px rgba(217,167,106,0.3); }
.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:#5a5248; padding:6px 0; border-bottom:2px solid transparent; transition:all 0.3s ease; }
.main-nav a:hover { color:#d9a76a; border-bottom-color:#d9a76a; }
.nav-cta { padding:10px 24px; border-radius:50px; background:#d9a76a; color:#f5f0eb!important; font-weight:600; border:none!important; box-shadow:0 4px 12px rgba(217,167,106,0.25); }
.nav-cta:hover { background:#c49254; transform:translateY(-2px); box-shadow:0 6px 18px rgba(217,167,106,0.35); }
.menu-toggle { display:none; background:none; border:none; font-size:1.5rem; color:#2d2a24; cursor:pointer; }

/* 首页Hero — 有机曲线 */
.hero { min-height:75vh; display:flex; align-items:center; position:relative; background:linear-gradient(135deg, #f5f0eb 0%, #ede6dd 50%, #e8dfd3 100%); overflow:hidden; }
.hero::before { content:''; position:absolute; top:-30%; right:-10%; width:500px; height:500px; border-radius:50%; background:radial-gradient(circle, rgba(217,167,106,0.15) 0%, transparent 70%); pointer-events:none; }
.hero::after { content:''; position:absolute; bottom:-20%; left:-5%; width:400px; height:400px; border-radius:50%; background:radial-gradient(circle, rgba(180,140,90,0.1) 0%, transparent 70%); pointer-events:none; }
.hero-content { max-width:720px; position:relative; z-index:1; }
.hero-eyebrow { display:inline-block; font-size:0.8rem; font-weight:700; padding:6px 18px; border-radius:50px; background:rgba(217,167,106,0.2); color:#8b6f4a; letter-spacing:1px; margin-bottom:18px; text-transform:uppercase; }
.hero h1 { font-size:3.2rem; line-height:1.15; margin-bottom:20px; font-weight:800; letter-spacing:-1px; color:#2d2a24; }
.hero h1 span { color:#d9a76a; display:inline-block; }
.hero p { font-size:1.1rem; opacity:0.7; max-width:540px; margin-bottom:34px; line-height:1.6; color:#5a5248; }
.hero-buttons { display:flex; gap:14px; flex-wrap:wrap; }
.hero-image { border-radius:30% 70% 70% 30% / 30% 30% 70% 70%; overflow:hidden; width:100%; max-width:500px; aspect-ratio:1/1; margin:0 auto; box-shadow:0 20px 60px rgba(45,42,36,0.1); }
.hero-image img { width:100%; height:100%; object-fit:cover; }

/* 按钮 — 黏土圆润 */
.btn { display:inline-flex; align-items:center; gap:10px; padding:14px 32px; border-radius:50px; font-weight:600; cursor:pointer; border:none; text-decoration:none; transition:all 0.3s ease; font-size:0.95rem; }
.btn-primary { background:#d9a76a; color:#f5f0eb; box-shadow:0 4px 14px rgba(217,167,106,0.3); }
.btn-primary:hover { background:#c49254; transform:translateY(-2px); box-shadow:0 6px 20px rgba(217,167,106,0.4); }
.btn-outline { background:transparent; border:2px solid #d9a76a; color:#d9a76a; }
.btn-outline:hover { background:rgba(217,167,106,0.08); transform:translateY(-2px); }

/* 标签/标题 */
.section-label { display:inline-block; font-size:0.75rem; font-weight:700; letter-spacing:3px; text-transform:uppercase; margin-bottom:12px; color:#8b6f4a; }
.section-title { font-size:2.2rem; margin-bottom:14px; font-weight:700; letter-spacing:-0.5px; color:#2d2a24; }
.section-desc { max-width:600px; opacity:0.7; margin-bottom:40px; color:#5a5248; font-size:1.05rem; line-height:1.6; }

/* 卡片网格 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(270px,1fr)); gap:28px; }
.category-card { border-radius:24px; padding:32px; background:#f5f0eb; border:1px solid rgba(212,201,188,0.4); transition:all 0.4s cubic-bezier(0.25,0.46,0.45,0.94); position:relative; overflow:hidden; }
.category-card::before { content:''; position:absolute; top:0; left:0; right:0; bottom:0; border-radius:24px; background:linear-gradient(135deg, rgba(217,167,106,0.05), transparent); opacity:0; transition:opacity 0.4s; }
.category-card:hover { transform:translateY(-6px); box-shadow:0 12px 40px rgba(45,42,36,0.08); border-color:rgba(217,167,106,0.3); }
.category-card:hover::before { opacity:1; }
.card-icon { width:52px; height:52px; border-radius:30% 70% 70% 30% / 30% 30% 70% 70%; background:#ede6dd; display:flex; align-items:center; justify-content:center; margin-bottom:18px; font-size:1.4rem; color:#d9a76a; }
.category-card h3 { font-size:1.2rem; margin-bottom:8px; color:#2d2a24; }
.category-card p { font-size:0.9rem; color:#5a5248; opacity:0.7; margin-bottom:16px; }
.card-link { font-weight:600; font-size:0.85rem; text-decoration:none; color:#d9a76a; display:inline-flex; align-items:center; gap:6px; }
.card-link:hover { gap:10px; }

/* 特性块 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.feature-image { border-radius:30% 70% 70% 30% / 30% 30% 70% 70%; overflow:hidden; box-shadow:0 16px 48px rgba(45,42,36,0.08); }
.feature-image img { width:100%; height:auto; display:block; }
.feature-text h3 { font-size:1.8rem; margin-bottom:16px; color:#2d2a24; }
.feature-list { list-style:none; margin-top:20px; }
.feature-list li { padding:8px 0; display:flex; align-items:center; gap:10px; color:#5a5248; font-size:0.95rem; }
.feature-list li::before { content:'✓'; font-weight:700; color:#d9a76a; 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 20px; border-radius:24px; background:#f5f0eb; border:1px solid rgba(212,201,188,0.3); transition:all 0.3s; }
.stat-item:hover { transform:translateY(-3px); box-shadow:0 8px 24px rgba(45,42,36,0.06); }
.stat-number { font-size:2.6rem; font-weight:800; color:#2d2a24; line-height:1; }
.stat-label { font-size:0.9rem; opacity:0.6; margin-top:8px; color:#5a5248; }

/* 内容墙 */
.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(290px,1fr)); gap:28px; }
.content-wall-item { border-radius:24px; overflow:hidden; background:#f5f0eb; border:1px solid rgba(212,201,188,0.3); transition:all 0.4s cubic-bezier(0.25,0.46,0.45,0.94); }
.content-wall-item:hover { transform:translateY(-5px); box-shadow:0 12px 36px rgba(45,42,36,0.08); }
.content-wall-item img { width:100%; height:220px; object-fit:cover; display:block; }
.content-wall-body { padding:22px; }
.content-wall-body h4 { font-size:1.1rem; margin-bottom:6px; color:#2d2a24; }
.content-wall-body p { font-size:0.85rem; color:#5a5248; opacity:0.7; }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:1px solid rgba(212,201,188,0.4); border-radius:16px; margin-bottom:10px; overflow:hidden; cursor:pointer; background:#f5f0eb; transition:all 0.3s; }
.faq-item:hover { border-color:#d9a76a; }
.faq-item .faq-question { padding:18px 22px; font-weight:600; display:flex; justify-content:space-between; align-items:center; color:#2d2a24; font-size:1rem; }
.faq-item .faq-question::after { content:'+'; font-size:1.3rem; color:#d9a76a; 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:#5a5248; line-height:1.6; }
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 */
.cta-banner { padding:60px 32px; text-align:center; border-radius:30% 70% 70% 30% / 30% 30% 70% 70%; background:linear-gradient(135deg, #d9a76a, #c49254); color:#f5f0eb; box-shadow:0 16px 48px rgba(217,167,106,0.25); }
.cta-banner h2 { color:#f5f0eb; font-size:2rem; margin-bottom:12px; }
.cta-banner p { color:rgba(245,240,235,0.8); margin-bottom:24px; font-size:1.05rem; }
.cta-banner .btn-primary { background:#f5f0eb; color:#2d2a24; box-shadow:0 4px 14px rgba(0,0,0,0.1); }
.cta-banner .btn-primary:hover { background:#ede6dd; }

/* 页脚 */
.site-footer { padding:60px 0 28px; background:#2d2a24; color:#c4b8a8; }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:48px; }
.footer-brand h3 { color:#f5f0eb; font-size:1.2rem; margin-bottom:12px; }
.footer-brand p { font-size:0.9rem; opacity:0.7; line-height:1.6; }
.footer-col h4 { color:#f5f0eb; font-size:0.95rem; margin-bottom:14px; }
.footer-col ul { list-style:none; }
.footer-col ul li { margin-bottom:8px; }
.footer-col ul a { color:#c4b8a8; text-decoration:none; font-size:0.85rem; opacity:0.7; transition:opacity 0.3s; }
.footer-col ul a:hover { opacity:1; color:#d9a76a; }
.footer-bottom { border-top:1px solid rgba(196,184,168,0.15); margin-top:48px; padding-top:20px; text-align:center; font-size:0.85rem; opacity:0.6; }

/* 工具类 */
.text-accent { color:#d9a76a; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; opacity:0.7; color:#5a5248; 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:40px; }
  .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; align-items:center; justify-content:center; width:44px; height:44px; border-radius:50%; background:rgba(217,167,106,0.1); }
  .main-nav.open { display:flex; flex-direction:column; position:absolute; top:72px; left:0; width:100%; background:#f5f0eb; padding:24px; gap:16px; border-bottom:2px solid #d4c9bc; }
  .hero h1 { font-size:2.2rem; }
  .hero { min-height:60vh; }
  .section-title { 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 h1 { font-size:1.8rem; }
  .stat-number { font-size:2rem; }
  .cta-banner { border-radius:24px; padding:40px 20px; }
}