:
root { --primary: #6366f1; --dark: #1e293b; --light
: #f8fafc; --accent: #f43f5e; }
        * { margin
: 0; padding: 0; box-sizing: border-box; }
        body { font-family: '
PingFang SC', sans-serif; line-height: 1.6; color: #3341
55; background: #fff; }
        .container { max-width: 1200px
; margin: 0 auto; padding: 0 20px; }
        header { padding: 20px 
0; background: #fff; position: sticky; top: 0; z-index: 100; border-bottom:
 1px solid #e2e8f0; }
        .nav-wrapper { display: flex; justify-content
: space-between; align-items: center; }
        .nav-links { display: flex; gap: 0;
 list-style: none; }
        .nav-links a { padding: 10px 15px; text
-decoration: none; color: var(--dark); font-weight: 500; transition: 0.3
s; }
        .hero { padding: 80px 0; text-align: center; background
: linear-gradient(135deg, #eef2ff 0%, #fff 100%); }

        h1 { font-size: 3rem; margin-bottom: 20px; color: var(--dark); }

        .btn { display: inline-block; padding: 12px 30px; background: var(--primary);
 color: #fff; border-radius: 8px; text-decoration: none; font-weight: bold
; margin-top: 20px; }
        section { padding: 60px 0; }

        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(3
00px, 1fr)); gap: 30px; }
        .card { padding: 30px;
 border: 1px solid #e2e8f0; border-radius: 16px; transition: 0
.3s; }
        .card:hover { transform: translateY(-5px); box-shadow: 
0 10px 25px rgba(0,0,0,0.1); }
        footer { background
: var(--dark); color: #94a3b8; padding: 40px 0; text
-align: center; }