:root { --primary
: #6366f1; --dark: #1e293b; --light: #f8fafc
; --accent: #f43f5e; }
        * { box-sizing: border-box; margin: 
0; padding: 0; }
        body { font-family: 'PingFang SC', 'Microsoft YaHei', sans
-serif; line-height: 1.6; color: #334155; background: #
ffffff; }
        .container { max-width: 1200px; margin: 0 auto
; padding: 0 20px; }
        header { background: #fff; padding: 20px 0;
 border-bottom: 1px solid #e2e8f0; position: sticky; top: 0; z-
index: 1000; }
        nav { display: flex; align-items: center; justify-content: space
-between; }
        .nav-links { display: flex; align-items: center; gap: 0; }

        .nav-links a { text-decoration: none; color: #475569; padding: 
0 15px; font-weight: 500; }
        .hero { padding: 100px
 0; text-align: center; background: linear-gradient(135deg, #f1f5
f9 0%, #e0e7ff 100%); }
        .hero h1 { font-size
: 3rem; margin-bottom: 20px; color: #0f172a; }
        .
btn { display: inline-block; padding: 12px 30px; background: var(--primary); color: #
fff; border-radius: 8px; text-decoration: none; transition: transform 0.2s; }
        .
btn:hover { transform: translateY(-2px); }
        .section { padding: 80px 0; }

        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(3
00px, 1fr)); gap: 30px; }
        .card { padding: 30px;
 border-radius: 16px; background: #fff; border: 1px solid #e2e8f0;
 transition: box-shadow 0.3s; }
        .card:hover { box-shadow: 0 20
px 25px -5px rgba(0,0,0,0.1); }
        .
faq-item { margin-bottom: 15px; border: 1px solid #e2e8f0;
 border-radius: 8px; overflow: hidden; }
        .faq-q { padding: 15
px; background: #f1f5f9; cursor: pointer; font-weight: 600; }
        .
faq-a { padding: 15px; display: none; }
        footer { background: #0
f172a; color: #94a3b8; padding: 50px 0; text
-align: center; }
        .contact-form { max-width: 600px; margin:
 0 auto; }
        input, select, textarea { width: 100%; padding: 12px; margin:
 10px 0; border: 1px solid #cbd5e1; border-radius: 
6px; }