/* 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:#FEFAF6; color:#3D3431; 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:#F5FAF7; }
.section:nth-child(even)::before { content:''; position:absolute; top:-60px; right:-80px; width:220px; height:220px; background:radial-gradient(circle, rgba(126,200,160,0.12) 0%, transparent 70%); border-radius:50%; pointer-events:none; z-index:0; }
.section:nth-child(odd)::after { content:''; position:absolute; bottom:-40px; left:-60px; width:180px; height:180px; background:radial-gradient(circle, rgba(232,129,107,0.10) 0%, transparent 70%); border-radius:50%; pointer-events:none; z-index:0; }

/* 导航 — 固定顶部 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(254,250,246,0.92); backdrop-filter:blur(16px); -webkit-backdrop-filter:blur(16px); border-bottom:1px solid rgba(61,52,49,0.06); transition:box-shadow 0.3s; }
.site-header.scrolled { box-shadow:0 2px 24px rgba(61,52,49,0.06); }
.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:#3D3431; letter-spacing:-0.02em; }
.logo-icon { width:36px; height:36px; border-radius:10px; display:flex; align-items:center; justify-content:center; font-size:1rem; background:linear-gradient(135deg, #E8816B, #F4A261); color:#fff; box-shadow:0 4px 12px rgba(232,129,107,0.25); }
.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:#5C514D; position:relative; padding:4px 0; }
.main-nav a::after { content:''; position:absolute; bottom:0; left:0; width:0; height:2px; background:linear-gradient(90deg, #E8816B, #F4A261); border-radius:1px; transition:width 0.3s cubic-bezier(0.25,0.46,0.45,0.94); }
.main-nav a:hover::after { width:100%; }
.main-nav a:hover { color:#E8816B; }
.nav-cta { padding:8px 20px; border-radius:24px; color:#fff!important; font-weight:600; background:linear-gradient(135deg, #E8816B, #F4A261); box-shadow:0 4px 14px rgba(232,129,107,0.3); transition:transform 0.2s, box-shadow 0.2s; }
.nav-cta::after { display:none!important; }
.nav-cta:hover { transform:translateY(-1px); box-shadow:0 6px 20px rgba(232,129,107,0.4); color:#fff!important; }
.menu-toggle { display:none; }

/* 首页Hero */
.hero { min-height:70vh; display:flex; align-items:center; position:relative; overflow:hidden; }
.hero::before { content:''; position:absolute; top:-120px; right:-100px; width:500px; height:500px; background:radial-gradient(circle, rgba(126,200,160,0.15) 0%, transparent 65%); border-radius:50%; pointer-events:none; }
.hero::after { content:''; position:absolute; bottom:-80px; left:-60px; width:340px; height:340px; background:radial-gradient(circle, rgba(232,129,107,0.10) 0%, transparent 65%); border-radius:50%; pointer-events:none; }
.hero .container { display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center; position:relative; z-index:1; }
.hero-content { max-width:720px; }
.hero-eyebrow { display:inline-flex; align-items:center; gap:6px; font-size:0.8rem; font-weight:600; padding:5px 16px; border-radius:20px; margin-bottom:16px; background:rgba(126,200,160,0.15); color:#4A9E6E; letter-spacing:0.04em; }
.hero-eyebrow::before { content:''; width:6px; height:6px; background:#4A9E6E; border-radius:50%; animation:pulse-dot 2s infinite; }
@keyframes pulse-dot { 0%,100%{opacity:1;transform:scale(1);} 50%{opacity:0.5;transform:scale(1.5);} }
.hero h1 { font-size:3.2rem; line-height:1.15; margin-bottom:20px; font-weight:800; letter-spacing:-0.03em; background:linear-gradient(135deg, #3D3431 0%, #6B5B55 60%, #E8816B 100%); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.hero p { font-size:1.1rem; color:#7A6E68; max-width:560px; margin-bottom:32px; line-height:1.7; }
.hero-buttons { display:flex; gap:14px; flex-wrap:wrap; }
.hero-image { border-radius:20px; overflow:hidden; position:relative; }
.hero-image::before { content:''; position:absolute; inset:0; background:linear-gradient(135deg, rgba(232,129,107,0.08), rgba(126,200,160,0.08)); z-index:1; pointer-events:none; border-radius:20px; }
.hero-image img { width:100%; height:auto; border-radius:20px; }
.hero-image::after { content:''; position:absolute; top:16px; right:16px; bottom:16px; left:16px; border:2px dashed rgba(232,129,107,0.2); border-radius:14px; z-index:2; pointer-events:none; }

/* 按钮 */
.btn { display:inline-flex; align-items:center; gap:8px; padding:13px 30px; border-radius:26px; font-weight:600; cursor:pointer; border:none; text-decoration:none; transition:all 0.3s cubic-bezier(0.25,0.46,0.45,0.94); font-size:0.95rem; letter-spacing:0.01em; position:relative; overflow:hidden; }
.btn::after { content:''; position:absolute; inset:0; background:rgba(255,255,255,0.2); opacity:0; transition:opacity 0.3s; border-radius:26px; }
.btn:hover::after { opacity:1; }
.btn:active { transform:scale(0.97); }
.btn-primary { color:#fff; background:linear-gradient(135deg, #E8816B, #F4A261); box-shadow:0 6px 20px rgba(232,129,107,0.35); }
.btn-primary:hover { box-shadow:0 10px 28px rgba(232,129,107,0.45); transform:translateY(-2px); }
.btn-outline { background:transparent; border:1.5px solid #E8816B; color:#E8816B; }
.btn-outline:hover { background:rgba(232,129,107,0.06); border-color:#D4705A; color:#D4705A; transform:translateY(-2px); }

/* 标签/标题 */
.section-label { display:inline-block; font-size:0.78rem; font-weight:700; letter-spacing:3px; margin-bottom:12px; color:#7EC8A0; text-transform:uppercase; position:relative; padding-left:28px; }
.section-label::before { content:''; position:absolute; left:0; top:50%; transform:translateY(-50%); width:20px; height:2px; background:linear-gradient(90deg, #7EC8A0, #E8816B); border-radius:1px; }
.section-title { font-size:2.3rem; margin-bottom:14px; font-weight:800; letter-spacing:-0.02em; color:#3D3431; line-height:1.2; }
.section-desc { max-width:600px; color:#7A6E68; margin-bottom:40px; line-height:1.7; }

/* 卡片网格 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(270px,1fr)); gap:24px; }
.category-card { border-radius:16px; padding:32px 28px; border:1px solid rgba(61,52,49,0.06); transition:all 0.35s cubic-bezier(0.25,0.46,0.45,0.94); background:rgba(255,255,255,0.7); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px); position:relative; overflow:hidden; }
.category-card::before { content:''; position:absolute; top:0; left:0; width:100%; height:3px; background:linear-gradient(90deg, #E8816B, #F4A261, #7EC8A0); transform:scaleX(0); transform-origin:left; transition:transform 0.4s cubic-bezier(0.25,0.46,0.45,0.94); border-radius:0 0 6px 6px; }
.category-card:hover::before { transform:scaleX(1); }
.category-card:hover { transform:translateY(-4px); box-shadow:0 12px 32px rgba(61,52,49,0.08), 0 4px 8px rgba(61,52,49,0.04); border-color:transparent; background:rgba(255,255,255,0.95); }
.card-icon { width:52px; height:52px; border-radius:14px; display:flex; align-items:center; justify-content:center; margin-bottom:16px; font-size:1.4rem; background:linear-gradient(135deg, rgba(126,200,160,0.2), rgba(232,129,107,0.15)); color:#E8816B; }
.card-link { font-weight:600; font-size:0.85rem; text-decoration:none; color:#E8816B; display:inline-flex; align-items:center; gap:4px; transition:gap 0.3s; }
.card-link:hover { gap:8px; }
.card-link::after { content:'→'; transition:transform 0.3s; }
.card-link:hover::after { transform:translateX(3px); }
.category-card h3 { font-size:1.15rem; font-weight:700; margin-bottom:8px; color:#3D3431; }
.category-card p { color:#7A6E68; font-size:0.9rem; line-height:1.6; }

/* 特性块 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.feature-image { border-radius:20px; overflow:hidden; position:relative; }
.feature-image::after { content:''; position:absolute; inset:12px; border:1.5px dashed rgba(126,200,160,0.3); border-radius:14px; pointer-events:none; }
.feature-image img { width:100%; height:auto; border-radius:20px; }
.feature-text { }
.feature-text h3 { font-size:1.6rem; font-weight:700; margin-bottom:16px; color:#3D3431; }
.feature-text p { color:#7A6E68; line-height:1.7; margin-bottom:20px; }
.feature-list { list-style:none; }
.feature-list li { padding:8px 0; display:flex; align-items:center; gap:10px; color:#5C514D; font-size:0.95rem; }
.feature-list li::before { content:'✓'; font-weight:700; color:#7EC8A0; background:rgba(126,200,160,0.15); width:24px; height:24px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:0.75rem; flex-shrink:0; }

/* 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:16px; border:1px solid rgba(61,52,49,0.05); background:rgba(255,255,255,0.6); backdrop-filter:blur(6px); -webkit-backdrop-filter:blur(6px); transition:transform 0.3s, box-shadow 0.3s; position:relative; overflow:hidden; }
.stat-item::after { content:''; position:absolute; bottom:0; left:20%; width:60%; height:3px; background:linear-gradient(90deg, transparent, #E8816B, #7EC8A0, transparent); border-radius:2px; opacity:0; transition:opacity 0.3s; }
.stat-item:hover { transform:translateY(-3px); box-shadow:0 8px 24px rgba(61,52,49,0.06); }
.stat-item:hover::after { opacity:1; }
.stat-number { font-size:2.6rem; font-weight:800; background:linear-gradient(135deg, #E8816B, #F4A261); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; letter-spacing:-0.02em; }
.stat-label { font-size:0.85rem; color:#7A6E68; margin-top:6px; font-weight:500; }

/* 内容墙 */
.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(290px,1fr)); gap:24px; }
.content-wall-item { border-radius:16px; overflow:hidden; border:1px solid rgba(61,52,49,0.05); transition:all 0.35s cubic-bezier(0.25,0.46,0.45,0.94); background:#fff; }
.content-wall-item:hover { transform:translateY(-5px); box-shadow:0 16px 40px rgba(61,52,49,0.10); }
.content-wall-item img { width:100%; height:200px; object-fit:cover; transition:transform 0.5s; }
.content-wall-item:hover img { transform:scale(1.04); }
.content-wall-body { padding:22px 20px; }
.content-wall-body h4 { font-weight:700; margin-bottom:6px; color:#3D3431; font-size:1.05rem; }
.content-wall-body p { color:#7A6E68; font-size:0.9rem; line-height:1.5; }
.content-wall-body .card-link { margin-top:8px; }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:1px solid rgba(61,52,49,0.06); border-radius:12px; margin-bottom:10px; overflow:hidden; cursor:pointer; background:#fff; transition:all 0.3s; }
.faq-item:hover { border-color:rgba(232,129,107,0.2); }
.faq-item .faq-question { padding:18px 22px; font-weight:600; display:flex; justify-content:space-between; align-items:center; color:#3D3431; font-size:0.95rem; }
.faq-item .faq-question::after { content:'+'; width:28px; height:28px; border-radius:50%; background:rgba(126,200,160,0.12); display:flex; align-items:center; justify-content:center; font-size:1.1rem; color:#7EC8A0; transition:transform 0.3s, background 0.3s; flex-shrink:0; margin-left:12px; }
.faq-item .faq-answer { padding:0 22px 18px; display:none; color:#7A6E68; line-height:1.7; font-size:0.9rem; }
.faq-item.open { border-color:rgba(232,129,107,0.25); box-shadow:0 4px 16px rgba(232,129,107,0.06); }
.faq-item.open .faq-answer { display:block; }
.faq-item.open .faq-question::after { transform:rotate(45deg); background:rgba(232,129,107,0.15); color:#E8816B; }

/* CTA横幅 */
.cta-banner { padding:60px 24px; text-align:center; border-radius:20px; color:#fff; background:linear-gradient(135deg, #E8816B, #F4A261, #D4705A); position:relative; overflow:hidden; }
.cta-banner::before { content:''; position:absolute; top:-60px; right:-80px; width:260px; height:260px; background:rgba(255,255,255,0.08); border-radius:50%; pointer-events:none; }
.cta-banner::after { content:''; position:absolute; bottom:-40px; left:-50px; width:180px; height:180px; background:rgba(255,255,255,0.06); border-radius:50%; pointer-events:none; }
.cta-banner h2 { color:#fff; font-size:2rem; font-weight:800; margin-bottom:12px; position:relative; z-index:1; }
.cta-banner p { color:rgba(255,255,255,0.9); margin-bottom:28px; position:relative; z-index:1; }
.cta-banner .btn-primary { background:#fff; color:#E8816B; box-shadow:0 6px 20px rgba(0,0,0,0.12); position:relative; z-index:1; }
.cta-banner .btn-primary:hover { background:#fefefe; transform:translateY(-2px); box-shadow:0 10px 28px rgba(0,0,0,0.18); }

/* 页脚 */
.site-footer { padding:56px 0 28px; background:#F5F2ED; color:#5C514D; border-top:1px solid rgba(61,52,49,0.04); }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
.footer-brand { }
.footer-brand .logo { margin-bottom:12px; }
.footer-brand p { color:#7A6E68; font-size:0.9rem; line-height:1.6; max-width:300px; }
.footer-col h4 { font-weight:700; margin-bottom:16px; color:#3D3431; font-size:0.95rem; }
.footer-col a { display:block; color:#7A6E68; text-decoration:none; font-size:0.88rem; padding:4px 0; transition:color 0.2s; }
.footer-col a:hover { color:#E8816B; }
.footer-bottom { border-top:1px solid rgba(61,52,49,0.06); margin-top:40px; padding-top:20px; text-align:center; font-size:0.85rem; color:#9A8E88; }

/* 工具类 */
.text-accent { color:#E8816B; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; color:#7A6E68; line-height:1.7; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* ⚠️ 响应式 */
@media (max-width: 768px) {
  .hero .container { grid-template-columns:1fr; }
  .hero { min-height:auto; padding:100px 0 60px; }
  .hero h1 { font-size:2.2rem; }
  .feature-block { grid-template-columns:1fr; gap:32px; }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; gap:28px; }
  .main-nav { display:none; }
  .menu-toggle { display:flex; align-items:center; justify-content:center; width:40px; height:40px; border-radius:10px; border:1px solid rgba(61,52,49,0.1); background:transparent; cursor:pointer; flex-direction:column; gap:5px; padding:8px; }
  .menu-toggle span { display:block; width:18px; height:2px; background:#3D3431; border-radius:1px; transition:0.3s; }
  .menu-toggle.open span:nth-child(1) { transform:rotate(45deg) translate(5px,5px); }
  .menu-toggle.open span:nth-child(2) { opacity:0; }
  .menu-toggle.open span:nth-child(3) { transform:rotate(-45deg) translate(5px,-5px); }
  .main-nav.open { display:flex; flex-direction:column; position:absolute; top:68px; left:0; width:100%; background:#FEFAF6; padding:20px 24px; border-bottom:1px solid rgba(61,52,49,0.06); box-shadow:0 12px 32px rgba(61,52,49,0.06); }
  .main-nav.open a { padding:10px 0; font-size:1rem; }
  .section-title { font-size:1.7rem; }
  .cta-banner h2 { font-size:1.5rem; }
}
@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; align-items:stretch; }
  .hero-buttons .btn { text-align:center; justify-content:center; }
  .section { padding:48px 0; }
  .hero h1 { font-size:1.8rem; }
  .stat-number { font-size:2rem; }
  .section-title { font-size:1.5rem; }
}