:root { --primary: #2563
eb; --accent: #f59e0b; --text: #1e293b; --bg: #ffffff
; --light: #f8fafc; }
        * { margin: 0; padding: 0; box-
sizing: border-box; }
        body { font-family: 'Helvetica Neue', Arial, sans-serif; line
-height: 1.6; color: var(--text); background: var(--bg); }
        .
container { max-width: 1200px; margin: 0 auto; padding: 0 
20px; }
        header { padding: 20px 0; background: #fff; position
: sticky; top: 0; z-index: 1000; border-bottom: 1px solid #e
2e8f0; }
        .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(--text); font-weight: 500; transition: color 0.3s; }
        .hero
 { padding: 100px 0; text-align: center; background: linear-gradient(1
35deg, #eff6ff, #f8fafc); }
        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; font-weight: bold
; transition: transform 0.2s; }
        .btn:hover { transform: translateY(-2px); }

        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(3
00px, 1fr)); gap: 30px; padding: 60px 0;
 }
        .card { padding: 30px; border: 1px solid #e2e8f0; border
-radius: 12px; background: #fff; transition: box-shadow 0.3s; }
        .
card:hover { box-shadow: 0 10px 25px rgba(0,0,0,0.
1); }
        section { padding: 80px 0; }
        .faq-item { margin
-bottom: 15px; border-bottom: 1px solid #e2e8f0; padding
-bottom: 15px; }
        .footer { background: #0f172a;
 color: #cbd5e1; padding: 50px 0; text-align: center; }

        .floating-kefu { position: fixed; bottom: 30px; right: 30px; z
-index: 999; }
        table { width: 100%; border-collapse:
 collapse; margin: 20px 0; }
        th, td { border: 1px solid #e2e
8f0; padding: 12px; text-align: left; }