/* 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:#3d2e28; 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:#f5f0e8; }

/* 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(14px); -webkit-backdrop-filter:blur(14px); border-bottom:1px solid #e8ddd0; transition:0.3s; }
.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:1.15rem; text-decoration:none; color:#3d2e28; letter-spacing:-0.3px; }
.logo-icon { width:38px; height:38px; border-radius:10px; display:flex; align-items:center; justify-content:center; font-size:1.05rem; background:linear-gradient(135deg,#c17e6f,#d4a96a); color:#fff; font-weight:700; box-shadow:0 3px 12px rgba(193,126,111,0.3); }
.main-nav { display:flex; align-items:center; gap:28px; list-style:none; }
.main-nav a { text-decoration:none; font-size:0.88rem; font-weight:500; color:#5c4a3f; transition:0.25s; position:relative; padding:4px 0; }
.main-nav a:hover { color:#c17e6f; }
.main-nav a::after { content:''; position:absolute; bottom:-2px; left:0; width:0; height:2px; background:#c17e6f; border-radius:1px; transition:0.3s; }
.main-nav a:hover::after { width:100%; }
.nav-cta { padding:9px 22px !important; border-radius:22px !important; color:#fff!important; font-weight:600 !important; background:linear-gradient(135deg,#c17e6f,#b0695e); box-shadow:0 4px 14px rgba(193,126,111,0.35); transition:0.3s !important; }
.nav-cta:hover { transform:translateY(-1px); box-shadow:0 6px 20px rgba(193,126,111,0.45); }
.nav-cta::after { display:none !important; }
.menu-toggle { display:none; background:none; border:none; cursor:pointer; width:32px; height:24px; flex-direction:column; justify-content:space-between; padding:0; }
.menu-toggle span { display:block; width:100%; height:2.5px; background:#3d2e28; border-radius:2px; transition:0.3s; }

/* 首页Hero */
.hero { min-height:75vh; display:flex; align-items:center; background:linear-gradient(170deg, #fefaf6 0%, #f8f0e5 40%, #f5efe4 100%); position:relative; overflow:hidden; }
.hero::before { content:''; position:absolute; top:-120px; right:-120px; width:500px; height:500px; border-radius:50%; background:radial-gradient(circle, rgba(193,126,111,0.08) 0%, transparent 70%); pointer-events:none; }
.hero::after { content:''; position:absolute; bottom:-80px; left:-60px; width:350px; height:350px; border-radius:50%; background:radial-gradient(circle, rgba(138,154,107,0.06) 0%, transparent 70%); pointer-events:none; }
.hero .container { position:relative; z-index:2; display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center; }
.hero-content { max-width:720px; }
.hero-eyebrow { display:inline-block; font-size:0.8rem; font-weight:700; padding:5px 16px; border-radius:20px; margin-bottom:18px; background:#e8e4d8; color:#6b7a53; letter-spacing:1.5px; text-transform:uppercase; }
.hero h1 { font-size:3.2rem; line-height:1.15; margin-bottom:22px; color:#3d2e28; font-weight:800; letter-spacing:-0.5px; }
.hero h1 span { color:#c17e6f; }
.hero p { font-size:1.08rem; opacity:0.7; max-width:520px; margin-bottom:34px; color:#5c4a3f; line-height:1.7; }
.hero-buttons { display:flex; gap:14px; flex-wrap:wrap; }
.hero-image { border-radius:16px; overflow:hidden; box-shadow:0 20px 60px rgba(138,120,100,0.18); position:relative; }
.hero-image img { width:100%; height:auto; display:block; }
.hero-image::after { content:''; position:absolute; inset:0; border-radius:16px; border:1px solid rgba(193,126,111,0.15); pointer-events:none; }

/* 按钮 */
.btn { display:inline-flex; align-items:center; gap:8px; padding:13px 30px; border-radius:24px; font-weight:600; cursor:pointer; border:none; text-decoration:none; transition:0.25s; font-size:0.95rem; letter-spacing:0.2px; }
.btn-primary { color:#fff; background:linear-gradient(135deg,#c17e6f,#b0695e); box-shadow:0 6px 22px rgba(193,126,111,0.35); }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 10px 28px rgba(193,126,111,0.45); }
.btn-outline { background:transparent; border:1.8px solid #c17e6f; color:#c17e6f; }
.btn-outline:hover { background:#c17e6f; color:#fff; }

/* 标签/标题 */
.section-label { display:inline-block; font-size:0.78rem; font-weight:700; letter-spacing:2.5px; margin-bottom:14px; color:#8a9a6b; text-transform:uppercase; }
.section-title { font-size:2.2rem; margin-bottom:14px; color:#3d2e28; font-weight:800; letter-spacing:-0.3px; }
.section-desc { max-width:600px; opacity:0.65; margin-bottom:44px; color:#5c4a3f; font-size:1.02rem; 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:30px 26px; border:1px solid #e8ddd0; transition:0.3s; background:#fff; position:relative; overflow:hidden; }
.category-card::before { content:''; position:absolute; top:0; left:0; width:100%; height:3px; background:linear-gradient(90deg,#c17e6f,#d4a96a); opacity:0; transition:0.3s; }
.category-card:hover { transform:translateY(-4px); box-shadow:0 12px 32px rgba(138,120,100,0.15); border-color:#d4c8b8; }
.category-card:hover::before { opacity:1; }
.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:#fdf5f0; color:#c17e6f; }
.card-link { font-weight:600; font-size:0.85rem; text-decoration:none; color:#c17e6f; display:inline-flex; align-items:center; gap:6px; transition:0.2s; }
.card-link:hover { gap:10px; color:#b0695e; }

/* 特性块 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.feature-image { border-radius:14px; overflow:hidden; box-shadow:0 16px 48px rgba(138,120,100,0.14); }
.feature-image img { width:100%; height:auto; display:block; }
.feature-text { }
.feature-list { list-style:none; }
.feature-list li { padding:7px 0; display:flex; align-items:center; gap:10px; color:#5c4a3f; font-size:0.95rem; }
.feature-list li::before { content:'✓'; font-weight:700; color:#8a9a6b; 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:14px; border:1px solid #e8ddd0; background:#fff; transition:0.3s; }
.stat-item:hover { box-shadow:0 8px 24px rgba(138,120,100,0.1); transform:translateY(-2px); }
.stat-number { font-size:2.4rem; font-weight:800; color:#c17e6f; letter-spacing:-1px; }
.stat-label { font-size:0.9rem; opacity:0.6; margin-top:8px; color:#5c4a3f; }

/* 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 #e8ddd0; transition:0.3s; background:#fff; }
.content-wall-item:hover { transform:translateY(-4px); box-shadow:0 12px 32px rgba(138,120,100,0.15); }
.content-wall-item img { width:100%; height:200px; object-fit:cover; display:block; }
.content-wall-body { padding:20px 22px; }
.content-wall-body h3 { color:#3d2e28; margin-bottom:6px; font-size:1.05rem; }
.content-wall-body p { color:#5c4a3f; opacity:0.6; font-size:0.9rem; line-height:1.5; }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:1px solid #e8ddd0; border-radius:12px; margin-bottom:10px; overflow:hidden; cursor:pointer; background:#fff; transition:0.25s; }
.faq-item:hover { border-color:#d4c8b8; }
.faq-item .faq-question { padding:18px 22px; font-weight:600; display:flex; justify-content:space-between; align-items:center; color:#3d2e28; font-size:0.98rem; }
.faq-item .faq-question::after { content:'+'; font-size:1.3rem; color:#c17e6f; transition:0.3s; font-weight:300; }
.faq-item .faq-answer { padding:0 22px 18px; display:none; opacity:0.7; color:#5c4a3f; line-height:1.7; }
.faq-item.open .faq-answer { display:block; }
.faq-item.open .faq-question::after { content:'−'; transform:rotate(180deg); }

/* CTA横幅 */
.cta-banner { padding:60px 28px; text-align:center; border-radius:16px; color:#fff; background:linear-gradient(135deg,#8a9a6b 0%,#7d8e5f 30%,#c17e6f 100%); position:relative; overflow:hidden; }
.cta-banner::before { content:''; position:absolute; top:-60px; right:-60px; width:250px; height:250px; border-radius:50%; background:rgba(255,255,255,0.06); pointer-events:none; }
.cta-banner h2 { color:#fff; font-size:2rem; font-weight:800; position:relative; z-index:1; }
.cta-banner p { position:relative; z-index:1; opacity:0.9; }
.cta-banner .btn-primary { background:#fff; color:#c17e6f; box-shadow:0 8px 24px rgba(0,0,0,0.15); position:relative; z-index:1; }
.cta-banner .btn-primary:hover { background:#fefaf6; }

/* 页脚 */
.site-footer { padding:60px 0 30px; background:#f5f0e8; border-top:1px solid #e8ddd0; }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:44px; }
.footer-brand { }
.footer-brand .logo { margin-bottom:8px; }
.footer-brand p { opacity:0.6; font-size:0.9rem; color:#5c4a3f; line-height:1.6; }
.footer-col h4 { font-weight:700; margin-bottom:14px; color:#3d2e28; font-size:0.95rem; }
.footer-col a { display:block; text-decoration:none; color:#5c4a3f; font-size:0.88rem; padding:4px 0; opacity:0.7; transition:0.2s; }
.footer-col a:hover { opacity:1; color:#c17e6f; }
.footer-bottom { border-top:1px solid #e0d6c8; margin-top:44px; padding-top:22px; text-align:center; font-size:0.85rem; color:#8a7e72; }

/* 工具类 */
.text-accent { color:#c17e6f; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 50px; opacity:0.6; font-size:0.92rem; color:#5c4a3f; line-height:1.7; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* ⚠️ 响应式 */
@media (max-width: 1024px) {
  .hero .container { grid-template-columns:1fr; gap:32px; }
  .hero-image { max-width:480px; margin:0 auto; }
  .hero h1 { font-size:2.6rem; }
  .feature-block { gap:36px; }
  .section-title { font-size:1.8rem; }
}
@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:#fefaf6; padding:24px; gap:16px; border-bottom:1px solid #e8ddd0; box-shadow:0 8px 24px rgba(0,0,0,0.06); }
  .hero h1 { font-size:2.2rem; }
  .hero { min-height:60vh; }
  .section { padding:56px 0; }
  .cta-banner { padding:44px 20px; }
  .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; }
  .hero h1 { font-size:1.8rem; }
  .section-title { font-size:1.5rem; }
  .hero .container { padding:0 12px; }
  .container { padding:0 16px; }
  .header-inner { padding:0 16px; }
  .btn { padding:12px 22px; font-size:0.9rem; }
}