/* 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:#fef9f3; color:#3d3a35; 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:#faf5ef; }

/* 导航 — 固定顶部 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(254,249,243,0.92); backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px); border-bottom:1px solid #e8e0d8; transition:box-shadow 0.3s; }
.site-header.scrolled { box-shadow:0 2px 20px rgba(61,58,53,0.06); }
.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:10px; font-weight:700; font-size:1.2rem; text-decoration:none; color:#3d3a35; letter-spacing:-0.3px; }
.logo-icon { width:38px; height:38px; border-radius:10px; display:flex; align-items:center; justify-content:center; font-size:0.95rem; background:#c2725e; color:#fff; font-weight:800; letter-spacing:-0.5px; }
.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:#5c544b; transition:color 0.25s; position:relative; }
.main-nav a:hover { color:#c2725e; }
.main-nav a::after { content:''; position:absolute; bottom:-4px; left:0; width:0; height:2px; background:#c2725e; border-radius:1px; transition:width 0.3s cubic-bezier(0.25,0.8,0.25,1.2); }
.main-nav a:hover::after { width:100%; }
.nav-cta { padding:9px 22px; border-radius:8px; color:#fff!important; font-weight:600; background:#7c9a7e; transition:all 0.3s!important; }
.nav-cta:hover { background:#688b6a; transform:translateY(-1px); box-shadow:0 4px 14px rgba(124,154,126,0.35); }
.nav-cta::after { display:none!important; }
.menu-toggle { display:none; background:none; border:none; cursor:pointer; padding:8px; color:#3d3a35; flex-direction:column; gap:5px; align-items:center; justify-content:center; }
.menu-toggle span { display:block; width:24px; height:2.5px; background:#3d3a35; border-radius:2px; transition:0.3s; }

/* 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(124,154,126,0.08) 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(194,114,94,0.06) 0%,transparent 70%); pointer-events:none; }
.hero .container { display:flex; align-items:center; gap:56px; position:relative; z-index:1; }
.hero-content { flex:1; max-width:720px; }
.hero-eyebrow { display:inline-block; font-size:0.82rem; font-weight:600; padding:5px 16px; border-radius:20px; margin-bottom:18px; background:#fdf0ec; color:#c2725e; letter-spacing:0.4px; }
.hero h1 { font-size:3rem; line-height:1.15; margin-bottom:22px; font-weight:800; letter-spacing:-0.8px; color:#3d3a35; }
.hero h1 span { color:#c2725e; position:relative; }
.hero h1 span::after { content:''; position:absolute; bottom:2px; left:0; width:100%; height:8px; background:rgba(194,114,94,0.18); border-radius:4px; z-index:-1; }
.hero p { font-size:1.1rem; opacity:0.7; max-width:560px; margin-bottom:34px; color:#5c544b; line-height:1.7; }
.hero-buttons { display:flex; gap:14px; flex-wrap:wrap; }
.hero-image { flex:0 0 420px; border-radius:16px; overflow:hidden; box-shadow:0 20px 50px rgba(61,58,53,0.1),0 4px 12px rgba(61,58,53,0.05); position:relative; }
.hero-image::before { content:''; position:absolute; inset:0; border-radius:16px; border:2px solid rgba(194,114,94,0.15); pointer-events:none; z-index:2; }
.hero-image img { width:100%; height:auto; display:block; transition:transform 0.6s; }
.hero-image:hover img { transform:scale(1.03); }

/* 按钮 */
.btn { display:inline-flex; align-items:center; gap:8px; padding:13px 30px; border-radius:8px; font-weight:600; cursor:pointer; border:none; text-decoration:none; transition:all 0.3s cubic-bezier(0.25,0.8,0.25,1); font-size:0.95rem; letter-spacing:0.2px; }
.btn-primary { color:#fff; background:#7c9a7e; box-shadow:0 2px 8px rgba(124,154,126,0.25); }
.btn-primary:hover { background:#688b6a; transform:translateY(-2px); box-shadow:0 8px 24px rgba(124,154,126,0.35); }
.btn-outline { background:transparent; border:1.8px solid #7c9a7e; color:#7c9a7e; }
.btn-outline:hover { background:#7c9a7e; color:#fff; transform:translateY(-2px); box-shadow:0 8px 24px rgba(124,154,126,0.28); }
.btn-secondary { background:#c2725e; color:#fff; box-shadow:0 2px 8px rgba(194,114,94,0.25); }
.btn-secondary:hover { background:#b06552; transform:translateY(-2px); box-shadow:0 8px 24px rgba(194,114,94,0.35); }

/* 标签/标题 */
.section-label { display:inline-block; font-size:0.78rem; font-weight:600; letter-spacing:2.5px; margin-bottom:14px; color:#c2725e; text-transform:uppercase; position:relative; padding-left:28px; }
.section-label::before { content:''; position:absolute; left:0; top:50%; transform:translateY(-50%); width:18px; height:2px; background:#c2725e; border-radius:1px; }
.section-title { font-size:2.1rem; margin-bottom:16px; font-weight:700; letter-spacing:-0.4px; color:#3d3a35; }
.section-desc { max-width:600px; opacity:0.65; margin-bottom:44px; font-size:1.05rem; color:#5c544b; line-height:1.7; }

/* 卡片网格 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:24px; }
.category-card { border-radius:14px; padding:32px 28px; border:1px solid #e8e0d8; transition:all 0.35s cubic-bezier(0.25,0.8,0.25,1); background:#fff; position:relative; overflow:hidden; cursor:pointer; }
.category-card::before { content:''; position:absolute; top:0; left:0; width:100%; height:3px; background:linear-gradient(90deg,#7c9a7e,#c9a96e); transform:scaleX(0); transform-origin:left; transition:transform 0.4s cubic-bezier(0.25,0.8,0.25,1); }
.category-card:hover::before { transform:scaleX(1); }
.category-card:hover { transform:translateY(-5px); box-shadow:0 12px 32px rgba(61,58,53,0.1),0 2px 8px rgba(61,58,53,0.04); border-color:transparent; }
.card-icon { width:50px; height:50px; border-radius:12px; display:flex; align-items:center; justify-content:center; margin-bottom:18px; font-size:1.4rem; background:#f2f7f3; color:#7c9a7e; transition:all 0.3s; }
.category-card:hover .card-icon { background:#7c9a7e; color:#fff; transform:scale(1.05); }
.category-card h3 { font-size:1.15rem; font-weight:700; margin-bottom:8px; color:#3d3a35; }
.category-card p { font-size:0.9rem; opacity:0.6; color:#5c544b; margin-bottom:14px; line-height:1.6; }
.card-link { font-weight:600; font-size:0.85rem; text-decoration:none; color:#c2725e; display:inline-flex; align-items:center; gap:6px; transition:gap 0.3s; }
.card-link:hover { gap:10px; }
.card-link::after { content:'→'; transition:transform 0.3s; }
.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:16px; overflow:hidden; position:relative; box-shadow:0 16px 40px rgba(61,58,53,0.08); }
.feature-image img { width:100%; height:auto; display:block; }
.feature-image::after { content:''; position:absolute; inset:0; border-radius:16px; border:1.5px solid rgba(194,114,94,0.12); pointer-events:none; }
.feature-text h3 { font-size:1.6rem; font-weight:700; margin-bottom:14px; color:#3d3a35; letter-spacing:-0.3px; }
.feature-text p { opacity:0.65; margin-bottom:20px; line-height:1.7; color:#5c544b; }
.feature-list { list-style:none; }
.feature-list li { padding:7px 0; display:flex; align-items:center; gap:10px; font-size:0.95rem; color:#3d3a35; }
.feature-list li::before { content:'✓'; font-weight:700; color:#7c9a7e; font-size:1.1rem; flex-shrink:0; width:22px; height:22px; border-radius:50%; background:#f2f7f3; display:flex; align-items:center; justify-content:center; }

/* 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; border:1px solid #e8e0d8; background:#fff; transition:all 0.3s; position:relative; overflow:hidden; }
.stat-item:hover { transform:translateY(-3px); box-shadow:0 8px 24px rgba(61,58,53,0.08); }
.stat-item::after { content:''; position:absolute; bottom:0; left:50%; transform:translateX(-50%); width:30px; height:3px; background:#c2725e; border-radius:2px; opacity:0; transition:all 0.3s; }
.stat-item:hover::after { opacity:1; width:50px; }
.stat-number { font-size:2.4rem; font-weight:800; color:#3d3a35; letter-spacing:-1px; line-height:1; }
.stat-number span { color:#c2725e; }
.stat-label { font-size:0.9rem; opacity:0.55; margin-top:8px; color:#5c544b; font-weight:500; }

/* 内容墙 */
.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:24px; }
.content-wall-item { border-radius:14px; overflow:hidden; border:1px solid #e8e0d8; transition:all 0.35s cubic-bezier(0.25,0.8,0.25,1); background:#fff; }
.content-wall-item:hover { transform:translateY(-5px); box-shadow:0 14px 36px rgba(61,58,53,0.1),0 2px 8px rgba(61,58,53,0.04); border-color:transparent; }
.content-wall-item img { width:100%; height:200px; object-fit:cover; transition:transform 0.6s; }
.content-wall-item:hover img { transform:scale(1.06); }
.content-wall-body { padding:22px 20px; }
.content-wall-body h4 { font-weight:700; font-size:1.05rem; margin-bottom:6px; color:#3d3a35; }
.content-wall-body p { font-size:0.88rem; opacity:0.6; color:#5c544b; 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 #e8e0d8; border-radius:12px; margin-bottom:10px; overflow:hidden; cursor:pointer; background:#fff; transition:all 0.3s; }
.faq-item:hover { border-color:#d5cbc0; }
.faq-item .faq-question { padding:18px 22px; font-weight:600; display:flex; justify-content:space-between; align-items:center; color:#3d3a35; transition:color 0.3s; font-size:1rem; }
.faq-item .faq-question::after { content:'+'; font-size:1.3rem; font-weight:400; color:#7c9a7e; transition:transform 0.35s cubic-bezier(0.25,0.8,0.25,1); 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:0.7; color:#5c544b; line-height:1.7; font-size:0.93rem; }
.faq-item.open .faq-answer { display:block; animation:fadeSlideIn 0.35s ease; }
.faq-item.open { border-color:#7c9a7e; box-shadow:0 4px 16px rgba(124,154,126,0.1); }
.faq-item.open .faq-question { color:#7c9a7e; }
@keyframes fadeSlideIn { from { opacity:0; transform:translateY(-8px); } to { opacity:0.7; transform:translateY(0); } }

/* CTA横幅 */
.cta-banner { padding:60px 32px; text-align:center; border-radius:16px; color:#fff; background:linear-gradient(135deg,#c2725e 0%,#d4846e 40%,#b06552 100%); position:relative; overflow:hidden; }
.cta-banner::before { content:''; position:absolute; top:-60px; right:-60px; width:200px; height:200px; border-radius:50%; background:rgba(255,255,255,0.06); pointer-events:none; }
.cta-banner::after { content:''; position:absolute; bottom:-40px; left:-40px; width:160px; height:160px; border-radius:50%; background:rgba(255,255,255,0.04); pointer-events:none; }
.cta-banner h2 { color:#fff; font-size:2rem; font-weight:700; margin-bottom:12px; position:relative; z-index:1; letter-spacing:-0.3px; }
.cta-banner p { opacity:0.9; margin-bottom:28px; position:relative; z-index:1; font-size:1.05rem; }
.cta-banner .btn-primary { background:#fff; color:#c2725e; box-shadow:0 4px 16px rgba(0,0,0,0.12); font-weight:700; position:relative; z-index:1; }
.cta-banner .btn-primary:hover { background:#fef9f3; transform:translateY(-2px); box-shadow:0 8px 28px rgba(0,0,0,0.18); }

/* 页脚 */
.site-footer { padding:60px 0 28px; background:#f3ede6; color:#3d3a35; border-top:1px solid #e8e0d8; }
.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:1.7; color:#5c544b; max-width:280px; }
.footer-col { }
.footer-col h4 { font-weight:700; margin-bottom:16px; font-size:0.95rem; color:#3d3a35; letter-spacing:0.2px; }
.footer-col a { display:block; text-decoration:none; color:#5c544b; opacity:0.7; margin-bottom:10px; font-size:0.9rem; transition:all 0.25s; }
.footer-col a:hover { opacity:1; color:#c2725e; padding-left:4px; }
.footer-bottom { border-top:1px solid #e0d8cf; margin-top:44px; padding-top:22px; text-align:center; font-size:0.85rem; opacity:0.5; color:#5c544b; }

/* 工具类 */
.text-accent { color:#c2725e; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; opacity:0.6; font-size:0.92rem; line-height:1.7; color:#5c544b; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }
.text-muted { opacity:0.55; color:#5c544b; }
.bg-warm { background:#fef9f3; }
.bg-cream { background:#faf5ef; }

/* ⚠️ 响应式 */
@media (max-width: 1024px) {
  .hero .container { gap:36px; }
  .hero-image { flex:0 0 340px; }
  .hero h1 { font-size:2.4rem; }
  .feature-block { gap:40px; }
}
@media (max-width: 768px) {
  .hero { min-height:auto; padding:100px 0 60px; }
  .hero .container { flex-direction:column-reverse; gap:32px; text-align:center; }
  .hero-content { max-width:100%; }
  .hero p { max-width:100%; margin-left:auto; margin-right:auto; }
  .hero-buttons { justify-content:center; }
  .hero-image { flex:0 0 auto; max-width:380px; width:100%; margin:0 auto; }
  .hero h1 { font-size:2rem; }
  .feature-block { grid-template-columns:1fr; gap:36px; }
  .feature-image { order:-1; }
  .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; }
  .main-nav.open { display:flex; flex-direction:column; position:absolute; top:68px; left:0; width:100%; background:#fef9f3; padding:24px; border-bottom:1px solid #e8e0d8; box-shadow:0 8px 24px rgba(61,58,53,0.06); }
  .main-nav.open a { padding:10px 0; font-size:1rem; }
  .main-nav.open .nav-cta { text-align:center; margin-top:8px; }
  .section { padding:56px 0; }
  .section-title { font-size:1.7rem; }
  .cta-banner { padding:44px 20px; }
  .cta-banner h2 { font-size:1.6rem; }
}
@media (max-width: 480px) {
  .cards-grid,.content-wall,.stats-bar { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; gap:28px; }
  .hero-buttons { flex-direction:column; align-items:center; }
  .hero-buttons .btn { width:100%; justify-content:center; }
  .hero h1 { font-size:1.7rem; }
  .hero-image { max-width:100%; }
  .section-title { font-size:1.5rem; }
  .category-card { padding:24px 20px; }
  .stat-number { font-size:2rem; }
  .faq-item .faq-question { font-size:0.9rem; padding:14px 16px; }
  .faq-item .faq-answer { padding:0 16px 14px; }
  .btn { padding:11px 22px; font-size:0.9rem; }
  .container { padding:0 16px; }
  .header-inner { padding:0 16px; }
  .cta-banner { border-radius:12px; padding:36px 16px; }
  .cta-banner h2 { font-size:1.4rem; }
}