:root { --primary: #2563
eb; --dark: #1e293b; --light: #f8fafc; --accent
: #f59e0b; }
        * { margin: 0; padding: 0; box-
sizing: border-box; }
        body { font-family: -apple-system, BlinkMacSystemFont,
 "Segoe UI", Roboto, sans-serif; line-height: 1.6; color: #3341
55; background-color: #fff; }
        .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; }
        .nav-links { display: flex; gap
: 0; }
        .nav-links a { padding: 10px 15px; text
-decoration: none; color: var(--dark); font-weight: 500; font-size: 1
4px; }
        .hero { padding: 80px 0; text-align: center; background: linear
-gradient(135deg, #eff6ff 0%, #fff 100%); }
        h
1 { 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: 60
0; transition: transform 0.2s; }
        .btn:hover { transform: translateY(-2px); }

        .section { padding: 60px 0; }
        .grid { display: grid; grid-template-
columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 3
0px; }
        .card { padding: 30px; border-radius: 16px; border: 1
px solid #e2e8f0; transition: 0.3s; }
        .card:hover
 { border-color: var(--primary); box-shadow: 0 10px 25px rgba(0,0
,0,0.05); }
        .faq-item { margin-bottom: 15px; border-bottom
: 1px solid #e2e8f0; padding-bottom: 15px; }
        .
faq-q { font-weight: bold; cursor: pointer; display: flex; justify-content: space-between; }
        
table { width: 100%; border-collapse: collapse; margin-top: 20px;
 }
        th, td { padding: 12px; border: 1px solid #e2e
8f0; text-align: left; }
        footer { background: var(--dark); color: #cbd
5e1; padding: 40px 0; text-align: center; }
        .floating
-kefu { position: fixed; bottom: 30px; right: 30px; width
: 60px; height: 60px; background: var(--accent); border-radius: 
50%; display: flex; align-items: center; justify-content: center; color: #fff; font-size:
 24px; cursor: pointer; }