:root { --primary: #7c3aed; --bg: #ffffff; --text: #
1f2937; --accent: #0ea5e9; }
        * { box-sizing: border
-box; margin: 0; padding: 0; }
        body { font-family: 'Segoe
 UI', sans-serif; background-color: var(--bg); color: var(--text); line-height: 1
.6; }
        .container { max-width: 1200px; margin: 0
 auto; padding: 0 20px; }
        header { padding: 20px 0; background: rgba
(255,255,255,0.95); position: sticky; top: 0; z-
index: 1000; border-bottom: 1px solid #e5e7eb; }
        nav {
 display: flex; justify-content: space-between; align-items: center; }
        .nav-links { display
: flex; gap: 0; }
        .nav-links a { padding: 10px 
15px; color: var(--text); text-decoration: none; font-weight: 500
; }
        .hero { padding: 80px 0; text-align: center; background: linear-gradient(1
35deg, #f5f3ff, #e0f2fe); }
        h1 { font
-size: 2.5rem; margin-bottom: 20px; color: #1118
27; }
        .btn { display: inline-block; padding: 12px 30px;
 background: var(--primary); color: #fff; border-radius: 8px; text-decoration: none
; margin: 10px; transition: 0.3s; }
        .section { padding: 6
0px 0; }
        .grid { display: grid; grid-template-columns: repeat(auto-fit
, minmax(300px, 1fr)); gap: 30px; }
        .card { padding: 
30px; border: 1px solid #e5e7eb; border-radius: 12px; transition: 
0.3s; }
        .card:hover { transform: translateY(-5px); box-shadow: 
0 10px 25px rgba(0,0,0,0.1); }
        
.faq-item { margin-bottom: 15px; border-bottom: 1px solid #f3f4
f6; }
        .faq-q { cursor: pointer; padding: 15px 0;
 font-weight: 600; display: flex; justify-content: space-between; }
        footer { background
: #111827; color: #f9fafb; padding: 40px 0;
 text-align: center; }
        .float-kefu { position: fixed; bottom: 30
px; right: 30px; width: 60px; z-index: 999; }
        
.hidden-content { display: none; padding: 15px 0; color: #4b55
63; }