:root { --primary-color: #0
052cc; --text-color: #1a1a1a; --bg-color: #
ffffff; --accent-color: #f8f9fa; --gap: 20px; }
        * {
 box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: -
apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; line
-height: 1.6; color: var(--text-color); background: var(--bg-color);
 }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 var
(--gap); }
        header { padding: 20px 0; border-bottom: 1px
 solid #eee; background: #fff; position: sticky; top: 0; z-index: 1000
; }
        .nav-wrapper { display: flex; justify-content: space-between; align-items: center; }

        .nav-links { display: flex; align-items: center; gap: 0; }

        .nav-links a { padding: 10px 15px; text-decoration: none; color
: var(--text-color); font-weight: 500; transition: color 0.3s
; }
        .hero { padding: 80px 0; text-align: center; background: linear-gradient(1
35deg, #f0f7ff 0%, #ffffff 100%); }
        .hero h1 { font
-size: 3rem; margin-bottom: 20px; color: var(--primary-color); }

        .btn { display: inline-block; padding: 12px 30px; background: var(--primary-
color); color: #fff; border-radius: 6px; text-decoration: none; font-weight:
 bold; transition: transform 0.2s; }
        .btn:hover { transform: translateY(-2px); }

        section { padding: 60px 0; }
        .section-title { text-align: center; margin
-bottom: 40px; font-size: 2.2rem; }
        .grid {
 display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1
fr)); gap: 30px; }
        .card { padding: 30px; border:
 1px solid #eee; border-radius: 12px; transition: box-shadow 0.
3s; }
        .card:hover { box-shadow: 0 10px 30px rgba(0,
0,0,0.1); }
        .faq-item { margin-bottom: 15px; border-bottom
: 1px solid #eee; }
        .faq-question { padding: 15px; cursor: pointer; font
-weight: bold; display: flex; justify-content: space-between; }
        .faq-answer
 { padding: 15px; display: none; color: #666; }
        footer { padding: 4
0px 0; background: #1a1a1a; color: #fff; text-align: center; }

        .float-kefu { position: fixed; right: 20px; bottom: 5
0px; width: 120px; text-align: center; z-index: 999; }
        
@media (max-width: 768px) { .nav-links { display: none; } .
hero h1 { font-size: 2rem; } }