:root { --primary-color
: #FFD700; --text-color: #333; --bg-color: #ffffff
; --accent-dark: #222; }
        * { box-sizing: border-box; margin: 0;
 padding: 0; }
        body { font-family: 'Helvetica Neue', Helvetica, 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 { padding: 20px 0; background: #fff; border-bottom:
 2px solid var(--primary-color); position: sticky; top: 0; z-index: 100
0; }
        .nav-wrapper { display: flex; align-items: center; justify-content: space
-between; }
        .nav-links { display: flex; align-items: center; gap: 0; }

        .nav-links a { padding: 10px 15px; text-decoration: none; color
: var(--accent-dark); font-weight: bold; }
        .hero { padding: 100px
 0; text-align: center; background: #fdfdfd; }
        h1 { font
-size: 3rem; margin-bottom: 20px; color: var(--accent-dark);
 }
        .btn { display: inline-block; padding: 12px 30px; background: var(--primary
-color); color: var(--accent-dark); border-radius: 5px; font-weight: bold; text-decoration:
 none; transition: transform 0.2s; }
        .btn:hover { transform: scale(1
.05); }
        section { padding: 60px 0; }
        .grid { display: grid
; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap
: 30px; }
        .card { padding: 20px; border: 1px solid #eee
; border-radius: 10px; transition: 0.3s; }
        .card:
hover { box-shadow: 0 10px 20px rgba(0,0,0,0
.1); }
        footer { background: var(--accent-dark); color: #fff; padding: 40px 
0; text-align: center; }
        .faq-item { margin-bottom: 15px; border-bottom
: 1px solid #ddd; padding-bottom: 10px; }
        .faq-question { cursor:
 pointer; font-weight: bold; }
        .faq-answer { display: none; padding: 10px 
0; }
        .form-group { margin-bottom: 15px; }
        input, select,
 textarea { width: 100%; padding: 10px; border: 1px solid #ccc
; }
        .floating-kefu { position: fixed; right: 20px; bottom: 20
px; z-index: 999; }