:root { --primary: #2
563eb; --accent: #7c3aed; --bg: #f8fafc; --text: #
1e293b; --white: #ffffff; }
        * { box-sizing: border-
box; margin: 0; padding: 0; }
        body { font-family: 'PingFang SC',
 'Microsoft YaHei', sans-serif; background: var(--bg); color: var(--text); line-height
: 1.6; }
        .container { max-width: 1200px; margin
: 0 auto; padding: 0 20px; }
        header { background: var(--white); padding: 
15px 0; border-bottom: 1px solid #e2e8f0; position: sticky;
 top: 0; z-index: 1000; }
        .nav-container { display: flex; justify-
content: space-between; align-items: center; }
        .nav-links { display: flex;
 gap: 0; list-style: none; }
        .nav-links a { padding: 1
0px 15px; color: var(--text); text-decoration: none; font-weight: 
500; transition: color 0.3s; }
        .hero { padding: 80px 0; text
-align: center; background: linear-gradient(135deg, #eff6ff 0%, #
f1f5f9 100%); }
        h1 { font-size: 3rem
; margin-bottom: 20px; color: #0f172a; }
        .
btn { display: inline-block; padding: 12px 30px; background: var(--primary);
 color: #fff; border-radius: 8px; text-decoration: none; font-weight: 
600; margin-top: 20px; transition: transform 0.2s; }
        .
btn:hover { transform: translateY(-2px); }
        .section { padding: 60px 0; }

        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(3
00px, 1fr)); gap: 30px; }
        .card { background: var(--white); padding
: 30px; border-radius: 16px; box-shadow: 0 4px 6
px rgba(0,0,0,0.05); transition: box-shadow 0.3s; }
        .
card:hover { box-shadow: 0 10px 20px rgba(0,0,
0,0.1); }
        .table-wrap { overflow-x: auto; }
        table { width:
 100%; border-collapse: collapse; margin-top: 20px; }
        th,
 td { padding: 15px; border: 1px solid #e2e8f0; text
-align: left; }
        footer { background: #0f172a; color: #cbd5e1
; padding: 40px 0; text-align: center; }
        .faq-item { margin
-bottom: 15px; border-bottom: 1px solid #334155; padding-
bottom: 10px; }
        .ai-page-home-link { display: none; }

        .ai-page-logo { width: 150px; }