:
root { --primary-color: #2ecc71; --text-color: #2c3e50; --bg-
color: #f9fffb; }
        * { box-sizing: border-box; margin: 
0; padding: 0; }
        body { font-family: '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
 20px; }
        header { background: #fff; padding: 15px 0;
 border-bottom: 2px solid var(--primary-color); position: sticky; top: 0; z-
index: 1000; }
        .nav-wrapper { display: flex; justify-content: space-between; align
-items: center; }
        .nav-links { display: flex; gap: 0; }

        .nav-links a { padding: 10px 15px; text-decoration: none; color
: var(--text-color); font-weight: 500; }
        .hero { padding: 8
0px 0; text-align: center; background: linear-gradient(135deg, #e
8f8f0 0%, #ffffff 100%); }
        h1 { font-size
: 2.5rem; margin-bottom: 20px; color: #1a5e3
8; }
        .btn { display: inline-block; padding: 12px 30px;
 background: var(--primary-color); color: #fff; text-decoration: none; border-radius: 5
px; transition: 0.3s; }
        .section { padding: 60px 0; }

        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(2
80px, 1fr)); gap: 30px; }
        .card { background: #fff; padding:
 30px; border-radius: 10px; box-shadow: 0 5px 15
px rgba(0,0,0,0.05); transition: 0.3s; }
        .card:hover
 { transform: translateY(-5px); }
        table { width: 100%; border-collapse: collapse; margin
: 20px 0; }
        th, td { padding: 15px; border: 1px solid
 #ddd; text-align: left; }
        .faq-item { margin-bottom: 15
px; border-bottom: 1px solid #eee; padding-bottom: 10px; }
        footer
 { background: #1a5e38; color: #fff; padding: 40px 0; text-align:
 center; }
        .floating-kefu { position: fixed; right: 20px; bottom: 5
0px; z-index: 999; width: 100px; }
        @media (max
-width: 768px) { .nav-links { display: none; } }