:root { --primary: #2563eb; --accent: #
7c3aed; --text: #1f2937; --bg: #f8faf
c; --white: #ffffff; }
        * { box-sizing: border-box; margin: 0;
 padding: 0; }
        body { font-family: 'PingFang SC', 'Microsoft YaHei',
 sans-serif; line-height: 1.6; color: var(--text); background: var(--bg
); }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 
20px; }
        header { background: var(--white); padding: 15px 0;
 border-bottom: 1px solid #e5e7eb; position: sticky; top: 0; z-
index: 1000; }
        .nav-wrapper { display: flex; align-items: center
; justify-content: space-between; }
        .nav-links { display: flex; gap: 0; align
-items: center; }
        .nav-links a { padding: 10px 15px; text
-decoration: none; color: var(--text); font-weight: 500; transition: color 0.3s;
 }
        .btn { padding: 10px 20px; border-radius: 8px; font
-weight: 600; cursor: pointer; border: none; display: inline-block; text-decoration: none; }

        .btn-primary { background: var(--primary); color: var(--white); }
        .hero { padding
: 80px 0; text-align: center; background: linear-gradient(135deg, #eff
6ff 0%, #f5f3ff 100%); }
        .section { padding: 60px
 0; }
        .grid-3 { display: grid; grid-template-columns: repeat(auto-fit
, minmax(300px, 1fr)); gap: 20px; }
        .card { background: var
(--white); padding: 30px; border-radius: 16px; box-shadow: 0
 4px 6px -1px rgba(0,0,0,0.1); transition: transform
 0.3s; }
        .card:hover { transform: translateY(-5px); }
        .faq-item
 { margin-bottom: 15px; border-bottom: 1px solid #e5e7eb;
 padding-bottom: 10px; }
        footer { background: #111827; color: #
9ca3af; padding: 40px 0; text-align: center; }
        .footer
-links { margin-bottom: 20px; }
        .footer-links a { color: #fff; margin:
 0 10px; text-decoration: none; }