:root { --primary: #2563
eb; --dark: #1e293b; --light: #f8fafc; --accent
: #8b5cf6; }
        * { margin: 0; padding: 0; box-
sizing: border-box; }
        body { font-family: 'PingFang SC', 'Microsoft YaHei', sans
-serif; line-height: 1.6; color: var(--dark); background: #ffffff; }
        .container
 { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

        header { background: #fff; padding: 15px 0; border-bottom: 1px
 solid #e2e8f0; position: sticky; top: 0; z-index: 1
000; }
        nav { display: flex; justify-content: space-between; align-items: center; }

        .nav-links { display: flex; gap: 0; align-items: center; list-style: none; }

        .nav-links a { text-decoration: none; color: #475569; padding: 
0 15px; font-size: 14px; transition: 0.3s; }
        .
hero { padding: 80px 0; text-align: center; background: linear-gradient(1
35deg, #f0f7ff 0%, #ffffff 100%); }
        h1 { font
-size: 3rem; margin-bottom: 20px; color: var(--dark); }
        .btn
 { display: inline-block; padding: 12px 30px; background: var(--primary); color: #
fff; border-radius: 8px; text-decoration: none; font-weight: bold; }
        .section
 { padding: 60px 0; }
        .grid { display: grid; grid-template-columns
: repeat(auto-fit, minmax(280px, 1fr)); gap: 24
px; }
        .card { padding: 30px; border: 1px solid #e2e8f0;
 border-radius: 12px; transition: 0.3s; }
        .card:hover
 { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0
,0,0.05); }
        footer { background: var(--dark); color: #fff; padding:
 40px 0; text-align: center; }
        .faq-item { border-bottom: 1px
 solid #334155; padding: 15px 0; cursor: pointer; text-align: left
; }
        .faq-answer { display: none; padding: 10px 0; color: #9
4a3b8; }