:root { --
primary: #ff3e3e; --secondary: #2563eb; --bg: #f8faf
c; --text: #1e293b; }
        * { box-sizing: border-box;
 margin: 0; padding: 0; }
        body { font-family: 'PingFang SC',
 sans-serif; line-height: 1.6; color: var(--text); background: var(--bg); }

        .container { max-width: 1200px; margin: 0 auto; padding: 0 
20px; }
        header { background: #fff; padding: 15px 0; border
-bottom: 2px solid var(--primary); position: sticky; top: 0; z-index: 1
000; }
        .nav-wrapper { display: flex; justify-content: space-between; align
-items: center; }
        .nav-links { display: flex; gap: 0; }
        .nav
-links a { padding: 0 15px; text-decoration: none; color: var(--text); font
-weight: 500; }
        .hero { padding: 80px 0; text
-align: center; background: linear-gradient(135deg, #fff 0%, #f1
f5f9 100%); }
        .hero h1 { font-size: 3rem; margin
-bottom: 20px; color: var(--primary); }
        .btn { display: inline-block;
 padding: 12px 30px; background: var(--primary); color: #fff; text-decoration: none; border
-radius: 5px; margin-top: 20px; transition: 0.3s; }

        .btn:hover { background: #d32f2f; transform: translateY(-2px); }

        .card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(28
0px, 1fr)); gap: 20px; margin-top: 40px; }

        .card { background: #fff; padding: 30px; border-radius: 12
px; box-shadow: 0 4px 6px rgba(0,0,0,0.0
5); transition: 0.3s; }
        .card:hover { transform: translateY(-10px); box-shadow
: 0 10px 20px rgba(0,0,0,0.1); }

        section { padding: 60px 0; }
        table { width: 100%; border-collapse:
 collapse; margin-top: 20px; }
        th, td { border: 1px solid #ddd; padding
: 12px; text-align: left; }
        .faq-item { margin-bottom: 1
5px; border-bottom: 1px solid #eee; padding-bottom: 10px; }
        footer
 { background: #1e293b; color: #fff; padding: 40px 0; text-align:
 center; }
        .kefu-float { position: fixed; right: 20px; bottom: 5
0px; width: 80px; z-index: 999; }