:root { --
primary: #ff4757; --accent: #2ed573; --dark: #2
f3542; --bg: #f8f9fa; }
        * { box-sizing: border
-box; margin: 0; padding: 0; }
        body { font-family: 'PingFang SC',
 sans-serif; line-height: 1.6; color: var(--dark); background: var(--bg); }
        
.container { max-width: 1200px; margin: 0 auto; padding: 0 2
0px; }
        header { background: #fff; padding: 15px 0; border-bottom: 1px
 solid #eee; position: sticky; top: 0; z-index: 1000; }

        .nav-inner { display: flex; align-items: center; justify-content: space-between; }
        
.nav-links { display: flex; gap: 0; list-style: none; }
        .
nav-links a { padding: 10px 15px; text-decoration: none; color: var
(--dark); font-weight: 500; }
        .btn { padding: 10px 25
px; border-radius: 5px; border: none; cursor: pointer; transition: 0.3
s; }
        .btn-primary { background: var(--primary); color: #fff; }
        .
hero { padding: 80px 0; text-align: center; background: linear-gradient(1
35deg, #fff 0%, #f1f2f6 100%); }
        h
1 { font-size: 3rem; margin-bottom: 20px; color: var(--dark); }
        .
card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(2
80px, 1fr)); gap: 20px; margin: 40px 0;
 }
        .card { background: #fff; padding: 30px; border-radius: 12px;
 box-shadow: 0 4px 6px rgba(0,0,0,0.05); transition: 0
.3s; }
        .card:hover { transform: translateY(-5px); box-shadow: 0 10px
 20px rgba(0,0,0,0.1); }
        footer { background: var
(--dark); color: #fff; padding: 40px 0; text-align: center; }
        .footer
-links a { color: #ccc; margin: 0 10px; }
        @media (max-width:
 768px) { .nav-links { display: none; } }