:root { --primary: #e63
946; --dark: #1d3557; --light: #f1faee; --accent
: #f4a261; }
        * { box-sizing: border-box; margin: 
0; padding: 0; }
        body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana
, sans-serif; line-height: 1.6; color: #333; background: #fff;
 }
        .container { max-width: 1200px; margin: 0 auto; padding: 0
 20px; }
        header { background: #fff; padding: 20px 0; border-bottom:
 2px solid var(--primary); position: sticky; top: 0; z-index: 1000; }

        nav { display: flex; justify-content: space-between; align-items: center; }
        .nav-links
 { display: flex; gap: 0; }
        .nav-links a { text-decoration: none; color
: var(--dark); padding: 10px 15px; font-weight: bold; }
        .btn {
 display: inline-block; padding: 12px 25px; background: var(--primary); color: #fff; border
-radius: 5px; text-decoration: none; transition: 0.3s; }
        .hero { padding
: 100px 0; background: linear-gradient(135deg, #fff5f5, #ffe
bee); text-align: center; }
        h1 { font-size: 3rem; color: var(--primary
); margin-bottom: 20px; }
        .card-grid { display: grid; grid-template-columns
: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-top
: 40px; }
        .card { padding: 30px; border: 1px solid
 #eee; border-radius: 10px; transition: 0.3s; background: #fff; }

        .card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(
0,0,0,0.1); }
        .faq-item { margin-bottom: 1
5px; border-bottom: 1px solid #ddd; padding-bottom: 10px; }
        footer
 { background: var(--dark); color: #fff; padding: 50px 0; margin-top: 5
0px; }
        .footer-content { display: flex; justify-content: space-between; flex-
wrap: wrap; gap: 40px; }
        .form-group { margin-bottom: 1
5px; }
        input, select, textarea { width: 100%; padding: 10px; border:
 1px solid #ccc; border-radius: 4px; }
        .floating-kefu { position: fixed;
 bottom: 20px; right: 20px; z-index: 999; }