*, *::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:#f0f4f8; color:#2c3e50; }

.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; }
.section:nth-child(even) { background:#e8f0fa; }

.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(240,244,248,0.92); backdrop-filter:blur(12px); border-bottom:1px solid #cddbe9; }
.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:1.3rem; text-decoration:none; color:#2c3e50; letter-spacing:1px; }
.logo-icon { width:40px; height:40px; border-radius:50%; background:linear-gradient(135deg,#a8c0e0,#6a8db0); display:flex; align-items:center; justify-content:center; font-size:1.2rem; color:#fff; box-shadow:0 2px 8px rgba(106,141,176,0.3); }
.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:#4a5f73; transition:0.3s; padding:6px 0; border-bottom:2px solid transparent; }
.main-nav a:hover { color:#2c3e50; border-bottom-color:#6a8db0; }
.nav-cta { padding:10px 24px; border-radius:30px; background:linear-gradient(135deg,#a8c0e0,#6a8db0); color:#fff!important; font-weight:600; border-bottom:none!important; box-shadow:0 4px 12px rgba(106,141,176,0.25); }
.nav-cta:hover { transform:translateY(-2px); box-shadow:0 6px 18px rgba(106,141,176,0.35); }
.menu-toggle { display:none; background:none; border:none; font-size:1.5rem; cursor:pointer; color:#4a5f73; }

.hero { min-height:75vh; display:flex; align-items:center; background:linear-gradient(135deg,#f0f4f8 0%,#dce6f0 50%,#c8d8e8 100%); position:relative; overflow:hidden; }
.hero::before { content:'✦'; position:absolute; top:10%; right:8%; font-size:12rem; color:rgba(168,192,224,0.15); transform:rotate(15deg); }
.hero-content { max-width:720px; position:relative; z-index:1; }
.hero-eyebrow { display:inline-block; font-size:0.8rem; font-weight:600; padding:6px 18px; border-radius:30px; background:rgba(106,141,176,0.15); color:#4a6a8a; margin-bottom:18px; letter-spacing:2px; }
.hero h1 { font-size:3.2rem; line-height:1.15; margin-bottom:20px; color:#1a2a3a; font-weight:800; letter-spacing:-0.5px; }
.hero h1 span { background:linear-gradient(135deg,#6a8db0,#a8c0e0); -webkit-background-clip:text; -webkit-text-fill-color:transparent; }
.hero p { font-size:1.15rem; opacity:0.75; max-width:560px; margin-bottom:36px; line-height:1.6; color:#3a4f63; }
.hero-buttons { display:flex; gap:16px; }
.hero-image { border-radius:20px; overflow:hidden; box-shadow:0 8px 30px rgba(106,141,176,0.15); }

.btn { display:inline-flex; align-items:center; gap:10px; padding:14px 32px; border-radius:30px; font-weight:600; cursor:pointer; border:none; text-decoration:none; transition:0.3s; font-size:0.95rem; }
.btn-primary { background:linear-gradient(135deg,#6a8db0,#8aaccc); color:#fff; box-shadow:0 4px 14px rgba(106,141,176,0.3); }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 6px 20px rgba(106,141,176,0.4); }
.btn-outline { background:transparent; border:2px solid #6a8db0; color:#4a6a8a; }
.btn-outline:hover { background:rgba(106,141,176,0.08); transform:translateY(-2px); }

.section-label { display:inline-block; font-size:0.75rem; font-weight:600; letter-spacing:3px; margin-bottom:14px; color:#6a8db0; text-transform:uppercase; }
.section-title { font-size:2.2rem; margin-bottom:16px; color:#1a2a3a; font-weight:700; }
.section-desc { max-width:600px; opacity:0.7; margin-bottom:40px; font-size:1.05rem; line-height:1.6; color:#3a4f63; }

.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:28px; }
.category-card { border-radius:16px; padding:32px 28px; border:1px solid #d4e0ec; background:#fff; transition:0.3s; }
.category-card:hover { transform:translateY(-5px); box-shadow:0 8px 24px rgba(106,141,176,0.12); border-color:#a8c0e0; }
.card-icon { width:52px; height:52px; border-radius:14px; background:linear-gradient(135deg,#e0ecf5,#c8d8e8); display:flex; align-items:center; justify-content:center; margin-bottom:18px; font-size:1.5rem; color:#4a6a8a; }
.category-card h3 { font-size:1.2rem; margin-bottom:10px; color:#1a2a3a; }
.category-card p { font-size:0.9rem; color:#5a6f83; opacity:0.8; margin-bottom:16px; }
.card-link { font-weight:600; font-size:0.85rem; text-decoration:none; color:#6a8db0; display:inline-flex; align-items:center; gap:6px; }
.card-link::after { content:'→'; transition:0.2s; }
.card-link:hover::after { transform:translateX(4px); }

.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.feature-image { border-radius:16px; overflow:hidden; box-shadow:0 6px 20px rgba(106,141,176,0.1); }
.feature-image img { width:100%; height:auto; display:block; }
.feature-text { }
.feature-text h3 { font-size:1.6rem; margin-bottom:16px; color:#1a2a3a; }
.feature-text p { font-size:1rem; opacity:0.7; line-height:1.7; margin-bottom:20px; color:#3a4f63; }
.feature-list { list-style:none; }
.feature-list li { padding:8px 0; display:flex; align-items:center; gap:10px; font-size:0.95rem; color:#2c3e50; }
.feature-list li::before { content:'✓'; font-weight:700; color:#6a8db0; font-size:1.1rem; }

.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; }
.stat-item { padding:28px 20px; border-radius:16px; border:1px solid #d4e0ec; background:#fff; transition:0.3s; }
.stat-item:hover { transform:translateY(-3px); box-shadow:0 6px 16px rgba(106,141,176,0.1); }
.stat-number { font-size:2.4rem; font-weight:800; color:#1a2a3a; }
.stat-label { font-size:0.9rem; opacity:0.6; margin-top:8px; color:#5a6f83; }

.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:28px; }
.content-wall-item { border-radius:16px; overflow:hidden; border:1px solid #d4e0ec; background:#fff; transition:0.3s; }
.content-wall-item:hover { transform:translateY(-5px); box-shadow:0 8px 24px rgba(106,141,176,0.12); }
.content-wall-item img { width:100%; height:200px; object-fit:cover; }
.content-wall-body { padding:22px 20px; }
.content-wall-body h4 { font-size:1.1rem; margin-bottom:8px; color:#1a2a3a; }
.content-wall-body p { font-size:0.9rem; opacity:0.7; color:#5a6f83; }

.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:1px solid #d4e0ec; border-radius:12px; margin-bottom:10px; overflow:hidden; cursor:pointer; background:#fff; transition:0.2s; }
.faq-item:hover { border-color:#a8c0e0; }
.faq-item .faq-question { padding:18px 22px; font-weight:600; display:flex; justify-content:space-between; color:#1a2a3a; font-size:1rem; }
.faq-item .faq-question::after { content:'+'; font-size:1.3rem; color:#6a8db0; transition:0.3s; }
.faq-item.open .faq-question::after { content:'−'; }
.faq-item .faq-answer { padding:0 22px 18px; display:none; opacity:0.75; line-height:1.6; color:#3a4f63; }
.faq-item.open .faq-answer { display:block; }

.cta-banner { padding:64px 24px; text-align:center; border-radius:20px; background:linear-gradient(135deg,#6a8db0,#8aaccc,#a8c0e0); color:#fff; margin:40px 0; }
.cta-banner h2 { color:#fff; font-size:2rem; margin-bottom:12px; }
.cta-banner p { opacity:0.9; margin-bottom:24px; font-size:1.1rem; }
.cta-banner .btn-primary { background:#fff; color:#4a6a8a; box-shadow:0 4px 14px rgba(0,0,0,0.1); }
.cta-banner .btn-primary:hover { transform:translateY(-2px); box-shadow:0 6px 20px rgba(0,0,0,0.15); }

.site-footer { padding:60px 0 28px; background:#dce6f0; border-top:1px solid #cddbe9; }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
.footer-brand { }
.footer-brand h4 { font-size:1.2rem; margin-bottom:12px; color:#1a2a3a; }
.footer-brand p { font-size:0.9rem; opacity:0.7; color:#4a5f73; }
.footer-col h5 { font-size:0.95rem; margin-bottom:14px; color:#1a2a3a; font-weight:600; }
.footer-col ul { list-style:none; }
.footer-col ul li { margin-bottom:8px; }
.footer-col ul li a { text-decoration:none; font-size:0.9rem; color:#4a5f73; opacity:0.8; transition:0.2s; }
.footer-col ul li a:hover { opacity:1; color:#2c3e50; }
.footer-bottom { border-top:1px solid #cddbe9; margin-top:40px; padding-top:20px; text-align:center; font-size:0.85rem; color:#5a6f83; }

.text-accent { color:#6a8db0; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; opacity:0.7; line-height:1.6; color:#3a4f63; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

@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; }
  .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(240,244,248,0.98); padding:24px; border-bottom:1px solid #cddbe9; gap:16px; }
  .hero h1 { font-size:2.4rem; }
  .section-title { font-size:1.8rem; }
}

@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; gap:12px; }
  .hero h1 { font-size:2rem; }
  .hero { min-height:60vh; }
  .section { padding:48px 0; }
}