* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Microsoft YaHei', Arial, sans-serif; line-height: 1.6; color: #333; background: #f5f5f5; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.navbar { background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%); color: white; padding: 1rem 0; position: sticky; top: 0; z-index: 1000; }
.navbar .container { display: flex; justify-content: space-between; align-items: center; }
.logo h1 { font-size: 1.5rem; }
.nav-menu { display: flex; gap: 2rem; }
.nav-menu a { color: white; padding: 0.5rem 1rem; border-radius: 5px; }
.nav-menu a:hover, .nav-menu a.active { background: rgba(255,255,255,0.2); }
.hero { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 100px 20px; text-align: center; }
.hero-content h2 { font-size: 2.5rem; margin-bottom: 1rem; }
.hero-content p { font-size: 1.2rem; margin-bottom: 2rem; opacity: 0.9; }
.btn-primary { display: inline-block; padding: 12px 30px; background: #1e3c72; color: white; border-radius: 5px; font-weight: bold; }
.btn-primary:hover { background: #2a5298; }
section { padding: 60px 0; }
.section-title { text-align: center; font-size: 2rem; margin-bottom: 3rem; color: #1e3c72; }
.products { background: white; }
.product-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; }
.product-card { background: #f8f9fa; padding: 30px; border-radius: 10px; text-align: center; }
.product-icon { font-size: 3rem; margin-bottom: 1rem; }
.product-card h3 { color: #1e3c72; margin-bottom: 1rem; }
.product-card p { color: #666; }
.footer { background: #1a1a2e; color: white; padding: 40px 0 20px; text-align: center; }
.footer p { opacity: 0.8; }
.page-header { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 80px 20px; text-align: center; }
.page-header h1 { font-size: 2.5rem; margin-bottom: 1rem; }
@media (max-width: 768px) { .nav-menu { display: none; } }