:root { --primary: #005
2ff; --dark: #1a1a1a; --light: #f8f9fa; --accent
: #eef4ff; }
        * { box-sizing: border-box; margin: 0; padding: 0
; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto
, "Helvetica Neue", sans-serif; line-height: 1.6; color: #333; background:
 #fff; }
        .container { max-width: 1200px; margin: 0 auto
; padding: 0 20px; }
        header { padding: 20px 0; background: #fff
; border-bottom: 1px solid #eee; position: sticky; top: 0; z-index: 100
0; }
        nav { display: flex; align-items: center; justify-content: space-between; }
        
.nav-links { display: flex; gap: 0; }
        .nav-links a { padding
: 10px 15px; text-decoration: none; color: #333; font-weight
: 500; font-size: 14px; }
        .hero { padding: 
80px 0; text-align: center; background: linear-gradient(135deg, #f
0f7ff 0%, #ffffff 100%); }
        h1 { font-size: 3rem
; margin-bottom: 20px; color: var(--dark); }
        .btn { display: inline-block
; padding: 12px 30px; background: var(--primary); color: #fff; border
-radius: 6px; text-decoration: none; transition: 0.3s; }
        .btn:
hover { opacity: 0.9; transform: translateY(-2px); }
        section { padding: 
60px 0; }
        .grid { display: grid; grid-template-columns: repeat(auto-fit
, minmax(280px, 1fr)); gap: 30px; }
        .card { padding
: 30px; border-radius: 12px; background: #fff; border: 1
px solid #eee; transition: 0.3s; }
        .card:hover { box-shadow: 0 
10px 30px rgba(0,0,0,0.05); }
        table { width
: 100%; border-collapse: collapse; margin-top: 20px; }
        th,
 td { padding: 15px; text-align: left; border: 1px solid #eee; }
        footer
 { padding: 40px 0; background: var(--dark); color: #ccc; text-align: center
; }
        .faq-item { margin-bottom: 15px; border-bottom: 1px solid #
eee; padding-bottom: 15px; }
        .faq-q { font-weight: bold
; cursor: pointer; display: flex; justify-content: space-between; }
        .faq-a { display: none
; padding-top: 10px; color: #666; }
        .floating-kefu { position
: fixed; right: 20px; bottom: 20px; z-index: 999; }