/* 基础重置 */
*, *::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:#fdf8f4; color:#3b2828; line-height:1.6; -webkit-font-smoothing:antialiased; }

/* 核心布局 — 必须居中 */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; position:relative; }
.section:nth-child(even) { background:#f7f0e8; position:relative; }
.section:nth-child(even)::before { content:''; position:absolute; top:0; left:0; right:0; height:1px; background:linear-gradient(90deg,transparent,#e0cebd 20%,#e0cebd 80%,transparent); }

/* 导航 — 固定顶部 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(253,248,244,0.94); backdrop-filter:blur(14px); border-bottom:1px solid #e8d9cc; transition:box-shadow 0.3s; }
.site-header.scrolled { box-shadow:0 2px 20px rgba(180,120,90,0.08); }
.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:800; font-size:1.25rem; text-decoration:none; color:#3b2828; letter-spacing:-0.3px; }
.logo-icon { width:38px; height:38px; border-radius:11px 4px 11px 4px; display:flex; align-items:center; justify-content:center; font-size:1.1rem; background:#d4785c; color:#fff; font-weight:700; transform:rotate(-2deg); transition:transform 0.2s; }
.logo:hover .logo-icon { transform:rotate(2deg) scale(1.05); }
.main-nav { display:flex; align-items:center; gap:28px; list-style:none; }
.main-nav a { text-decoration:none; font-size:0.9rem; font-weight:550; transition:0.25s; color:#5c3d3d; position:relative; padding:4px 0; }
.main-nav a::after { content:''; position:absolute; bottom:-2px; left:0; width:0; height:2px; background:#d4785c; border-radius:1px; transition:width 0.25s cubic-bezier(0.4,0,0.2,1); }
.main-nav a:hover { color:#d4785c; }
.main-nav a:hover::after { width:100%; }
.nav-cta { padding:9px 22px; border-radius:8px 2px 8px 2px; color:#fff!important; font-weight:650; background:#d4785c; letter-spacing:0.2px; transition:0.25s; }
.nav-cta:hover { background:#c06848; transform:translateY(-1px); box-shadow:0 4px 14px rgba(212,120,92,0.35); }
.nav-cta::after { display:none; }
.menu-toggle { display:none; flex-direction:column; gap:5px; cursor:pointer; background:none; border:none; padding:8px; z-index:1001; }
.menu-toggle span { width:26px; height:2.5px; background:#3b2828; border-radius:2px; transition:0.3s; }
.menu-toggle.active span:nth-child(1) { transform:rotate(45deg) translate(5px,5px); }
.menu-toggle.active span:nth-child(2) { opacity:0; }
.menu-toggle.active span:nth-child(3) { transform:rotate(-45deg) translate(5px,-5px); }

/* 首页Hero */
.hero { min-height:75vh; display:flex; align-items:center; padding-top:68px; position:relative; overflow:hidden; }
.hero::before { content:''; position:absolute; top:-120px; right:-180px; width:500px; height:500px; border-radius:50%; background:radial-gradient(circle,rgba(212,120,92,0.07) 0%,transparent 70%); pointer-events:none; }
.hero::after { content:''; position:absolute; bottom:-80px; left:-100px; width:350px; height:350px; border-radius:50%; background:radial-gradient(circle,rgba(91,140,111,0.06) 0%,transparent 70%); pointer-events:none; }
.hero-content { max-width:720px; position:relative; z-index:1; }
.hero-eyebrow { display:inline-flex; align-items:center; gap:6px; font-size:0.82rem; font-weight:650; padding:5px 16px; border-radius:20px; margin-bottom:18px; background:#eaf0ec; color:#5b8c6f; letter-spacing:1.5px; text-transform:uppercase; }
.hero-eyebrow::before { content:''; width:7px; height:7px; border-radius:50%; background:#5b8c6f; animation:pulse-dot 2s infinite; }
@keyframes pulse-dot { 0%,100%{opacity:1;transform:scale(1);} 50%{opacity:0.5;transform:scale(1.6);} }
.hero h1 { font-size:3.2rem; line-height:1.15; margin-bottom:22px; font-weight:850; letter-spacing:-0.8px; color:#2d1f1f; }
.hero h1 .highlight { color:#d4785c; position:relative; display:inline-block; }
.hero h1 .highlight::after { content:''; position:absolute; bottom:2px; left:0; width:100%; height:3px; background:#d4785c; border-radius:2px; opacity:0.3; }
.hero p { font-size:1.15rem; opacity:0.7; max-width:540px; margin-bottom:36px; color:#5c3d3d; line-height:1.7; }
.hero-buttons { display:flex; gap:16px; flex-wrap:wrap; }
.hero-image { border-radius:16px 4px 16px 4px; overflow:hidden; position:relative; z-index:1; box-shadow:0 20px 50px rgba(180,120,90,0.18); }
.hero-image img { width:100%; height:auto; display:block; }

/* 按钮 */
.btn { display:inline-flex; align-items:center; gap:8px; padding:13px 30px; border-radius:9px 3px 9px 3px; font-weight:650; cursor:pointer; border:none; text-decoration:none; transition:0.25s; font-size:0.95rem; letter-spacing:0.1px; position:relative; overflow:hidden; }
.btn::after { content:''; position:absolute; inset:0; background:rgba(255,255,255,0.1); opacity:0; transition:opacity 0.25s; border-radius:inherit; }
.btn:hover::after { opacity:1; }
.btn:active { transform:scale(0.97); }
.btn-primary { background:#d4785c; color:#fff; box-shadow:0 4px 16px rgba(212,120,92,0.3); }
.btn-primary:hover { box-shadow:0 6px 22px rgba(212,120,92,0.4); transform:translateY(-2px); }
.btn-outline { background:transparent; border:2px solid #d4785c; color:#d4785c; }
.btn-outline:hover { background:#d4785c; color:#fff; }

/* 标签/标题 */
.section-label { display:inline-block; font-size:0.78rem; font-weight:650; letter-spacing:3px; margin-bottom:14px; text-transform:uppercase; color:#5b8c6f; position:relative; padding-left:28px; }
.section-label::before { content:''; position:absolute; left:0; top:50%; transform:translateY(-50%); width:18px; height:2px; background:#5b8c6f; border-radius:1px; }
.section-title { font-size:2.2rem; margin-bottom:16px; font-weight:800; letter-spacing:-0.5px; color:#2d1f1f; }
.section-desc { max-width:620px; opacity:0.65; margin-bottom:44px; font-size:1.05rem; color:#5c3d3d; line-height:1.7; }

/* 卡片网格 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(270px,1fr)); gap:26px; }
.category-card { border-radius:14px 5px 14px 5px; padding:30px 26px; border:1.5px solid #e8d9cc; transition:0.3s cubic-bezier(0.4,0,0.2,1); background:#fffdfb; position:relative; cursor:pointer; }
.category-card::before { content:''; position:absolute; top:0; left:0; width:100%; height:3px; background:linear-gradient(90deg,#d4785c,#e8a87c); border-radius:14px 5px 0 0; opacity:0; transition:opacity 0.3s; }
.category-card:hover { transform:translateY(-5px); box-shadow:0 12px 32px rgba(180,120,90,0.14); border-color:#d4b8a8; }
.category-card:hover::before { opacity:1; }
.card-icon { width:50px; height:50px; border-radius:12px 3px 12px 3px; display:flex; align-items:center; justify-content:center; margin-bottom:18px; font-size:1.4rem; background:#fdf0ea; color:#d4785c; }
.category-card:nth-child(2) .card-icon { background:#eaf0ec; color:#5b8c6f; }
.category-card:nth-child(3) .card-icon { background:#fef8f0; color:#c4843b; }
.category-card:nth-child(4) .card-icon { background:#f5edf5; color:#8b6b8b; }
.card-link { font-weight:650; font-size:0.88rem; text-decoration:none; color:#d4785c; display:inline-flex; align-items:center; gap:4px; transition:gap 0.25s; }
.card-link::after { content:'→'; transition:transform 0.25s; }
.card-link:hover { gap:10px; }
.card-link:hover::after { transform:translateX(3px); }

/* 特性块 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.feature-image { border-radius:18px 6px 18px 6px; overflow:hidden; box-shadow:0 16px 40px rgba(180,120,90,0.13); position:relative; }
.feature-image::after { content:''; position:absolute; inset:0; border:2px solid rgba(212,120,92,0.15); border-radius:inherit; pointer-events:none; }
.feature-image img { width:100%; height:auto; display:block; transition:transform 0.4s; }
.feature-image:hover img { transform:scale(1.03); }
.feature-text { }
.feature-list { list-style:none; }
.feature-list li { padding:8px 0; display:flex; align-items:flex-start; gap:10px; font-size:0.95rem; color:#5c3d3d; }
.feature-list li::before { content:'✓'; font-weight:700; color:#5b8c6f; font-size:1rem; flex-shrink:0; margin-top:1px; background:#eaf0ec; width:22px; height:22px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:0.7rem; }

/* 数据条 */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:20px; text-align:center; }
.stat-item { padding:28px 20px; border-radius:14px 5px 14px 5px; border:1.5px solid #e8d9cc; background:#fffdfb; transition:0.3s; position:relative; }
.stat-item:hover { transform:translateY(-3px); box-shadow:0 8px 24px rgba(180,120,90,0.1); }
.stat-item::after { content:''; position:absolute; bottom:0; left:50%; transform:translateX(-50%); width:30px; height:3px; background:#d4785c; border-radius:2px; opacity:0; transition:0.3s; }
.stat-item:hover::after { opacity:1; width:50px; }
.stat-number { font-size:2.4rem; font-weight:850; color:#d4785c; letter-spacing:-1px; }
.stat-item:nth-child(2) .stat-number { color:#5b8c6f; }
.stat-item:nth-child(3) .stat-number { color:#c4843b; }
.stat-item:nth-child(4) .stat-number { color:#8b6b8b; }
.stat-label { font-size:0.9rem; opacity:0.6; margin-top:8px; color:#5c3d3d; font-weight:500; }

/* 内容墙 */
.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(290px,1fr)); gap:26px; }
.content-wall-item { border-radius:14px 5px 14px 5px; overflow:hidden; border:1.5px solid #e8d9cc; transition:0.3s cubic-bezier(0.4,0,0.2,1); background:#fffdfb; }
.content-wall-item:hover { transform:translateY(-5px); box-shadow:0 14px 36px rgba(180,120,90,0.13); border-color:#d4b8a8; }
.content-wall-item img { width:100%; height:210px; object-fit:cover; display:block; transition:transform 0.4s; }
.content-wall-item:hover img { transform:scale(1.05); }
.content-wall-body { padding:22px; }
.content-wall-body h3 { font-size:1.05rem; font-weight:700; margin-bottom:6px; color:#2d1f1f; }
.content-wall-body p { font-size:0.88rem; opacity:0.6; color:#5c3d3d; line-height:1.5; }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:1.5px solid #e8d9cc; border-radius:11px 4px 11px 4px; margin-bottom:10px; overflow:hidden; cursor:pointer; background:#fffdfb; transition:0.25s; }
.faq-item:hover { border-color:#d4b8a8; }
.faq-item .faq-question { padding:18px 22px; font-weight:650; display:flex; justify-content:space-between; align-items:center; color:#3b2828; font-size:0.98rem; }
.faq-item .faq-question::after { content:'+'; font-size:1.3rem; font-weight:400; color:#d4785c; transition:transform 0.3s; flex-shrink:0; margin-left:12px; }
.faq-item.open .faq-question::after { transform:rotate(45deg); }
.faq-item .faq-answer { padding:0 22px 18px; display:none; opacity:0.65; color:#5c3d3d; line-height:1.7; font-size:0.92rem; }
.faq-item.open .faq-answer { display:block; animation:faqIn 0.3s ease; }
@keyframes faqIn { from{opacity:0;transform:translateY(-8px);} to{opacity:0.65;transform:translateY(0);} }
.faq-item.open { border-color:#d4b8a8; box-shadow:0 4px 16px rgba(180,120,90,0.06); }

/* CTA横幅 */
.cta-banner { padding:60px 28px; text-align:center; border-radius:16px 6px 16px 6px; color:#fff; background:linear-gradient(135deg,#5b8c6f 0%,#4a7560 40%,#3d624f 100%); position:relative; overflow:hidden; }
.cta-banner::before { content:''; position:absolute; top:-60px; right:-60px; width:200px; height:200px; border-radius:50%; background:rgba(255,255,255,0.04); pointer-events:none; }
.cta-banner::after { content:''; position:absolute; bottom:-40px; left:-40px; width:160px; height:160px; border-radius:50%; background:rgba(255,255,255,0.03); pointer-events:none; }
.cta-banner h2 { color:#fff; font-size:2rem; font-weight:800; margin-bottom:12px; position:relative; z-index:1; letter-spacing:-0.5px; }
.cta-banner p { color:rgba(255,255,255,0.8); margin-bottom:24px; position:relative; z-index:1; font-size:1rem; }
.cta-banner .btn-primary { background:#fff; color:#3d624f; box-shadow:0 4px 18px rgba(0,0,0,0.15); position:relative; z-index:1; border-radius:9px 3px 9px 3px; }
.cta-banner .btn-primary:hover { background:#fdf8f4; box-shadow:0 6px 24px rgba(0,0,0,0.2); }

/* 页脚 */
.site-footer { padding:60px 0 24px; background:#f5ede6; border-top:1px solid #e8d9cc; }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:44px; }
.footer-brand { }
.footer-brand .logo { margin-bottom:12px; }
.footer-brand p { opacity:0.6; font-size:0.9rem; line-height:1.6; color:#5c3d3d; max-width:300px; }
.footer-col { }
.footer-col h4 { font-weight:700; font-size:0.9rem; margin-bottom:14px; color:#3b2828; letter-spacing:0.5px; text-transform:uppercase; }
.footer-col a { display:block; text-decoration:none; color:#5c3d3d; opacity:0.65; font-size:0.88rem; padding:5px 0; transition:0.2s; }
.footer-col a:hover { opacity:1; color:#d4785c; padding-left:4px; }
.footer-bottom { border-top:1px solid #e0cebd; margin-top:44px; padding-top:20px; text-align:center; font-size:0.85rem; opacity:0.5; color:#5c3d3d; }

/* 工具类 */
.text-accent { color:#d4785c; font-weight:600; }
.text-center { text-align:center; }
.seo-description { max-width:620px; margin:0 auto 52px; opacity:0.6; text-align:center; font-size:0.95rem; color:#5c3d3d; line-height:1.7; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* ⚠️ 响应式 */
@media (max-width: 1024px) {
  .hero h1 { font-size:2.6rem; }
  .section-title { font-size:1.8rem; }
  .footer-grid { grid-template-columns:1fr 1fr; gap:30px; }
  .feature-block { gap:36px; }
}
@media (max-width: 768px) {
  .feature-block { grid-template-columns:1fr; gap:30px; }
  .feature-image { order:-1; }
  .stats-bar { grid-template-columns:repeat(2,1fr); gap:14px; }
  .footer-grid { grid-template-columns:1fr 1fr; gap:28px; }
  .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(253,248,244,0.98); backdrop-filter:blur(14px); padding:20px 24px 28px; border-bottom:2px solid #e8d9cc; box-shadow:0 8px 24px rgba(180,120,90,0.08); gap:6px; z-index:999; }
  .main-nav.open a { padding:10px 8px; font-size:1rem; width:100%; }
  .main-nav.open .nav-cta { text-align:center; margin-top:8px; }
  .hero { min-height:60vh; padding-top:88px; }
  .hero h1 { font-size:2.2rem; }
  .hero p { font-size:1rem; }
  .section { padding:50px 0; }
  .section-title { font-size:1.6rem; }
  .cta-banner { padding:40px 20px; }
  .cta-banner h2 { font-size:1.5rem; }
  .cards-grid { grid-template-columns:1fr 1fr; gap:16px; }
  .content-wall { grid-template-columns:1fr 1fr; gap:16px; }
  .category-card { padding:22px 18px; }
  .stat-number { font-size:1.8rem; }
  .footer-grid { grid-template-columns:1fr 1fr; }
}
@media (max-width: 480px) {
  .cards-grid,.content-wall,.stats-bar { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; gap:24px; }
  .hero-buttons { flex-direction:column; gap:10px; }
  .hero-buttons .btn { width:100%; justify-content:center; }
  .hero h1 { font-size:1.8rem; }
  .hero p { font-size:0.9rem; }
  .section-title { font-size:1.4rem; }
  .section-desc { font-size:0.9rem; }
  .container { padding:0 16px; }
  .header-inner { padding:0 16px; }
  .logo { font-size:1.05rem; }
  .logo-icon { width:32px; height:32px; font-size:0.9rem; }
  .stat-item { padding:18px 14px; }
  .stat-number { font-size:1.6rem; }
  .cta-banner { border-radius:10px 3px 10px 3px; padding:32px 16px; }
  .cta-banner h2 { font-size:1.3rem; }
  .footer-bottom { font-size:0.75rem; }
  .category-card { padding:18px 14px; }
  .content-wall-item img { height:160px; }
}