:
root { --primary-color: #4a6cf7; --text-color: #333; --bg-
color: #f9fbfd; --card-bg: #fff; }
        * { box-sizing: border
-box; margin: 0; padding: 0; }
        body { font-family: 'PingFang SC',
 'Helvetica Neue', sans-serif; background-color: var(--bg-color); color: var(--text-color); line-
height: 1.6; }
        .container { max-width: 1200px;
 margin: 0 auto; padding: 0 20px; }
        header { background: #fff; padding: 1
5px 0; border-bottom: 1px solid #eee; position: sticky; top: 0
; z-index: 1000; }
        .nav-inner { display: flex; align
-items: center; justify-content: space-between; }
        .nav-links { display: flex; gap: 
0; list-style: none; }
        .nav-links a { padding: 10px 
15px; text-decoration: none; color: #333; font-weight: 500; transition: color
 0.3s; }
        .hero { padding: 80px 0; text-align: center; background
: linear-gradient(135deg, #f0f4ff 0%, #ffffff 100%); }

        h1 { font-size: 3rem; margin-bottom: 20px; color:
 #1a1a1a; }
        .btn { display: inline-block; padding: 12
px 30px; background: var(--primary-color); color: #fff; border-radius: 5
0px; text-decoration: none; font-weight: bold; }
        .section { padding: 6
0px 0; }
        .grid { display: grid; grid-template-columns: repeat(auto-fit
, minmax(300px, 1fr)); gap: 30px; }
        .card { background: var
(--card-bg); padding: 30px; border-radius: 12px; box-shadow: 0
 4px 20px rgba(0,0,0,0.05); transition: transform 0.3
s; }
        .card:hover { transform: translateY(-5px); }
        .rating-card
 { background: #fff8e1; border: 1px solid #ffe082; text-align: center; }

        footer { background: #1a1a1a; color: #ccc; padding: 40
px 0; text-align: center; }
        .footer-links { margin-bottom: 20
px; }
        .footer-links a { color: #fff; margin: 0 10px
; text-decoration: none; }
        .fixed-kefu { position: fixed; right: 20px;
 bottom: 50px; z-index: 999; }