:root { --primary-color: #2ecc
71; --text-color: #2d3436; --bg-light: #f9
f9f9; --accent: #00b894; }
        * { margin: 0; padding
: 0; box-sizing: border-box; }
        body { font-family: 'PingFang SC',
 'Microsoft YaHei', sans-serif; color: var(--text-color); line-height: 1.
6; background-color: #fff; }
        .container { max-width: 1200
px; margin: 0 auto; padding: 0 20px; }
        header { background: #fff
; border-bottom: 1px solid #eee; padding: 15px 0; position: sticky; top
: 0; z-index: 1000; }
        .nav-wrapper { display:
 flex; justify-content: space-between; align-items: center; }
        .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, #e8f8f0 0%, #fff 
100%); }
        h1 { font-size: 3rem; margin-bottom: 20px; color:
 #1a1a1a; }
        .btn { display: inline-block; padding: 12
px 30px; background: var(--primary-color); color: #fff; text-decoration: none; border
-radius: 5px; font-weight: bold; }
        section { padding: 60px 0; }

        .grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(
300px, 1fr)); gap: 30px; }
        .card { padding: 30px;
 border: 1px solid #eee; border-radius: 10px; transition: transform 0.3
s; }
        .card:hover { transform: translateY(-5px); box-shadow: 0 10px 2
0px rgba(0,0,0,0.05); }
        .faq-item { margin
-bottom: 15px; border-bottom: 1px solid #eee; padding-bottom: 10px
; cursor: pointer; }
        footer { background: #2d3436; color: #fff; padding: 4
0px 0; text-align: center; }
        .form-group { margin-bottom: 1
5px; }
        input, select, textarea { width: 100%; padding: 10px; margin
-top: 5px; border: 1px solid #ccc; border-radius: 4px; }