:root { --
primary-color: #2ecc71; --text-color: #333; --bg-color: #f9
fdfa; }
        * { box-sizing: border-box; margin: 0; padding: 0
; }
        body { font-family: 'PingFang SC', sans-serif; line-height: 1.
6; color: var(--text-color); background-color: var(--bg-color); }
        .
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: 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
: 10px 15px; text-decoration: none; color: #333; font-
weight: 500; }
        .hero { padding: 80px 0; text-align: center; background
: linear-gradient(135deg, #e8f9f0 0%, #ffffff 100%); }

        .hero h1 { font-size: 3rem; margin-bottom: 20px; color: #
27ae60; }
        .btn { display: inline-block; padding: 12px 30px;
 background: var(--primary-color); color: #fff; border-radius: 5px; text-decoration
: none; margin-top: 20px; }
        section { padding: 60px 0; }

        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(28
0px, 1fr)); gap: 30px; }
        .card { padding: 30px; background:
 #fff; border-radius: 10px; box-shadow: 0 4px 6px
 rgba(0,0,0,0.05); }
        .faq-item { margin-bottom: 15
px; border-bottom: 1px solid #eee; }
        .faq-q { cursor: pointer; padding: 
15px 0; font-weight: bold; }
        .faq-a { padding: 0
 0 15px 0; display: none; }
        footer { padding: 40px 0
; background: #2c3e50; color: #ecf0f1; text-align: center
; }
        footer a { color: #bdc3c7; }
        .feedback-form { max
-width: 600px; margin: 0 auto; }
        .feedback-form input,
 .feedback-form select, .feedback-form textarea { width: 100%; padding: 10px; margin:
 10px 0; border: 1px solid #ddd; }