:root { --primary: #2563eb; --dark
: #1e293b; --light: #f8fafc; --accent: #3b82
f6; }
        * { box-sizing: border-box; margin: 0; padding: 0; }

        body { font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif; color: #
334155; line-height: 1.6; background-color: #fff; }
        .container
 { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

        header { padding: 20px 0; border-bottom: 1px solid #e2e8
f0; display: flex; align-items: center; justify-content: space-between; }
        
.nav-links { display: flex; gap: 0; list-style: none; }
        .
nav-links a { padding: 10px 15px; color: #475569; text-decoration
: none; font-weight: 500; }
        .hero { padding: 80px 0; text
-align: center; background: linear-gradient(135deg, #eff6ff, #fff); }
        
h1 { font-size: 2.5rem; margin-bottom: 20px; color: #0
f172a; }
        .btn { display: inline-block; padding: 12px 30px;
 background: var(--primary); color: #fff; border-radius: 8px; text-decoration: none; transition:
 0.3s; }
        .btn:hover { background: #1d4ed8; transform
: translateY(-2px); }
        .section { padding: 60px 0; }
        .grid
-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 
1fr)); gap: 20px; }
        .card { padding: 30px; border
: 1px solid #e2e8f0; border-radius: 12px; transition: 
0.3s; }
        .card:hover { box-shadow: 0 10px 25
px rgba(0,0,0,0.05); }
        table { width: 100%; border-collapse
: collapse; margin-top: 20px; }
        th, td { padding: 15px;
 text-align: left; border-bottom: 1px solid #e2e8f0; }
        .footer
 { background: #0f172a; color: #94a3b8; padding: 4
0px 0; text-align: center; }
        .contact-form input, .contact-form textarea,
 .contact-form select { width: 100%; padding: 10px; margin-bottom:
 15px; border: 1px solid #334155; border-radius: 5px; background
: #fff; }
        .feedback { font-style: italic; color: #64748b; }
        
@media (max-width: 768px) { .nav-links { display: none; }
 }