:root { --primary
-red: #d32f2f; --bg-gray: #fdfdfd; --text
-dark: #2c3e50; }
        * { box-sizing: border-box; margin: 
0; padding: 0; }
        body { font-family: 'PingFang SC', sans-serif; line
-height: 1.6; color: var(--text-dark); background: var(--bg-gray);
 }
        .container { max-width: 1200px; margin: 0 auto; padding: 0
 20px; }
        header { background: #fff; padding: 15px 0; border
-bottom: 2px solid var(--primary-red); 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: 0 15px; text-decoration: none; color: var(--text-dark
); font-weight: 500; }
        .hero { padding: 100px 0; text
-align: center; background: linear-gradient(135deg, #fff5f5, #ffe
bee); }
        .hero h1 { font-size: 3rem; color: var(--primary-red
); margin-bottom: 20px; }
        .btn { display: inline-block; padding: 1
2px 30px; background: var(--primary-red); color: #fff; border-radius:
 5px; text-decoration: none; margin-top: 20px; }
        section { padding:
 60px 0; }
        .grid-3 { display: grid; grid-template-columns
: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }

        .card { background: #fff; padding: 25px; border-radius: 10px; box
-shadow: 0 4px 6px rgba(0,0,0,0.05); transition: 0
.3s; }
        .card:hover { transform: translateY(-5px); box-shadow: 0 8px 
15px rgba(0,0,0,0.1); }
        table { width: 1
00%; border-collapse: collapse; margin-top: 20px; }
        th, td { border: 
1px solid #ddd; padding: 12px; text-align: left; }
        .faq-item { margin
-bottom: 15px; border-bottom: 1px solid #eee; padding-bottom: 10px
; }
        footer { background: #222; color: #ccc; padding: 40px 0; text
-align: center; }
        .float-kefu { position: fixed; right: 20px;
 bottom: 50px; width: 120px; }