:root { --primary: #2563
eb; --accent: #f59e0b; --dark: #1e293b; --light
: #f8fafc; }
        * { box-sizing: border-box; margin: 0; padding: 0
; }
        body { font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif; line
-height: 1.6; color: #334155; background: #ffffff; }
        .
container { max-width: 1200px; margin: 0 auto; padding: 0 
20px; }
        header { padding: 20px 0; border-bottom: 1px
 solid #e2e8f0; position: sticky; top: 0; background: rgba(255,2
55,255,0.95); z-index: 1000; }

        .nav-wrapper { display: flex; justify-content: space-between; align-items: center; }

        .nav-links { display: flex; gap: 0; align-items: center; }
        .nav
-links a { padding: 0 15px; text-decoration: none; color: var(--dark); font-weight
: 500; font-size: 14px; }
        .hero { padding: 80px 
0; text-align: center; background: linear-gradient(135deg, #eff6ff 0%, #
fef3c7 100%); }
        h1 { font-size: 3rem; margin-bottom
: 20px; color: var(--dark); }
        .btn { display: inline-block; padding: 12
px 30px; background: var(--primary); color: #fff; border-radius: 8px
; text-decoration: none; font-weight: bold; transition: 0.3s; }
        
.section { padding: 60px 0; }
        .grid { display: grid; grid-template-columns: repeat
(auto-fit, minmax(280px, 1fr)); gap: 20px; }

        .card { padding: 25px; border: 1px solid #e2e8f0; border-
radius: 12px; transition: 0.3s; }
        .card:hover { transform
: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0
.1); }
        footer { background: var(--dark); color: #94a3b8; padding: 4
0px 0; text-align: center; }
        .faq-item { margin-bottom: 1
5px; border: 1px solid #e2e8f0; padding: 15px; border-radius: 
8px; cursor: pointer; }
        .faq-content { display: none; padding-top: 10px
; border-top: 1px solid #e2e8f0; margin-top: 10px; }