:root { --primary: #6366f1; --accent: #a855f7; --dark: #0f172a; --light: #f8fafc; --text: #334155; }
        * { 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: #ffffff; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        header { background: rgba(255,255,255,0.95); position: sticky; top: 0; z-index: 1000; border-bottom: 1px solid #e2e8f0; }
        nav { display: flex; align-items: center; justify-content: space-between; height: 80px; }
        .nav-links { display: flex; gap: 0; align-items: center; }
        .nav-links a { padding: 0 15px; color: var(--dark); text-decoration: none; font-weight: 500; font-size: 14px; }
        .hero { padding: 100px 0; text-align: center; background: linear-gradient(135deg, #f8fafc 0%, #ede9fe 100%); }
        h1 { font-size: 3rem; color: var(--dark); margin-bottom: 20px; }
        .btn { display: inline-block; padding: 12px 30px; border-radius: 8px; background: var(--primary); color: white; text-decoration: none; font-weight: bold; margin: 10px; transition: 0.3s; }
        .btn:hover { background: var(--accent); }
        .section { padding: 80px 0; }
        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
        .card { padding: 30px; border: 1px solid #e2e8f0; border-radius: 16px; background: white; transition: 0.3s; }
        .card:hover { transform: translateY(-5px); box-shadow: 0 10px 25px rgba(0,0,0,0.1); }
        table { width: 100%; border-collapse: collapse; margin-top: 20px; }
        th, td { padding: 15px; border: 1px solid #e2e8f0; text-align: left; }
        .faq-item { margin-bottom: 15px; border: 1px solid #e2e8f0; border-radius: 8px; overflow: hidden; }
        .faq-q { padding: 15px; background: #f1f5f9; cursor: pointer; font-weight: bold; }
        .faq-a { padding: 15px; display: none; }
        footer { background: var(--dark); color: #cbd5e1; padding: 60px 0; text-align: center; }