:root { --primary: #2563eb; --accent: #
f59e0b; --dark: #1e293b; --light: #f8faf
c; --text: #334155; }
        * { margin: 0; padding
: 0; box-sizing: border-box; }
        body { font-family: 'Segoe UI', system-ui
, sans-serif; line-height: 1.6; color: var(--text); background: #ffffff; }
        .
container { max-width: 1200px; margin: 0 auto; padding: 0 
20px; }
        header { background: #fff; padding: 15px 0; border-
bottom: 1px solid #e2e8f0; position: sticky; top: 0; z
-index: 1000; }
        .nav-wrapper { display: flex; justify-content: space
-between; align-items: center; }
        .logo-area { width: 150px; }
        
.nav-links { display: flex; gap: 0; list-style: none; }
        .nav-links a {
 padding: 10px 15px; text-decoration: none; color: var(--dark); font-weight: 
500; }
        .hero { padding: 80px 0; text-align: center; background
: linear-gradient(135deg, #eff6ff 0%, #ffffff 100%);
 }
        .hero h1 { font-size: 3rem; margin-bottom: 20px; color: var(--
dark); }
        .btn-primary { background: var(--primary); color: #fff; padding: 12px 3
0px; border-radius: 6px; text-decoration: none; display: inline-block; transition
: 0.3s; }
        .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 2
5px rgba(0,0,0,0.1); }
        .faq-item { margin-bottom: 15
px; border-bottom: 1px solid #eee; }
        .faq-q { cursor: pointer; padding: 
15px; font-weight: 600; background: #f1f5f9; }

        .faq-a { padding: 15px; display: none; }
        footer { background: var
(--dark); color: #cbd5e1; padding: 40px 0; text-align: center; }

        .float-kefu { position: fixed; right: 20px; bottom: 50px; z
-index: 999; width: 100px; }