:root { --primary: #6366f1; --bg: #f8faf
c; --text: #1e293b; --accent: #f472b6; }
        
* { box-sizing: border-box; margin: 0; padding: 0; }
        body
 { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; line-
height: 1.6; color: var(--text); background: var(--bg); }
        .container
 { max-width: 1200px; margin: 0 auto; padding: 0 2
0px; }
        header { background: #fff; border-bottom: 1px solid #e2e8
f0; position: sticky; top: 0; z-index: 100; }
        nav { display: flex
; justify-content: space-between; align-items: center; height: 70px; }
        
.nav-links { display: flex; gap: 0; }
        .nav-links a { padding
: 0 15px; text-decoration: none; color: var(--text); font-weight: 50
0; font-size: 14px; }
        .hero { padding: 100px
 0; text-align: center; background: linear-gradient(135deg, #eef2ff
, #fae8ff); }
        .hero h1 { font-size: 3rem; margin
-bottom: 20px; color: #312e81; }
        .btn {
 display: inline-block; padding: 12px 30px; background: var(--primary); color: #
fff; border-radius: 8px; text-decoration: none; font-weight: 600; transition: transform
 0.2s; }
        .grid { display: grid; grid-template-columns: repeat(auto-fit
, minmax(280px, 1fr)); gap: 20px; padding: 5
0px 0; }
        .card { background: #fff; padding: 30px; border
-radius: 16px; box-shadow: 0 4px 6px -1px rgba(
0,0,0,0.1); }
        .faq-item { margin-bottom: 10
px; border: 1px solid #e2e8f0; border-radius: 8px; overflow
: hidden; }
        .faq-q { padding: 15px; background: #fff; cursor:
 pointer; font-weight: 600; }
        .faq-a { padding: 15px; display
: none; background: #f1f5f9; }
        footer { background: #1e293b;
 color: #f1f5f9; padding: 50px 0; text-align: center
; }
        .float-kefu { position: fixed; right: 20px; bottom:
 20px; z-index: 99; }