:root { --primary: #6366f1; --dark: #1e293b; --light: #f8fafc; --accent: #f43f5e; }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: 'PingFang SC', sans-serif; line-height: 1.6; color: var(--dark); background: #ffffff; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        header { padding: 20px 0; border-bottom: 1px solid #e2e8f0; position: sticky; top: 0; background: rgba(255,255,255,0.95); z-index: 100; }
        .nav-wrapper { display: flex; justify-content: space-between; align-items: center; }
        .nav-links { display: flex; gap: 0; align-items: center; }
        .nav-links a { padding: 0 15px; text-decoration: none; color: var(--dark); font-weight: 500; font-size: 14px; }
        .btn-primary { background: var(--primary); color: white; padding: 10px 20px; border-radius: 6px; text-decoration: none; }
        .hero { padding: 100px 0; text-align: center; background: linear-gradient(135deg, #eef2ff 0%, #ffffff 100%); }
        h1 { font-size: 48px; margin-bottom: 20px; color: var(--dark); }
        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; margin: 50px 0; }
        .card { padding: 30px; border-radius: 12px; background: white; border: 1px solid #e2e8f0; transition: transform 0.3s; }
        .card:hover { transform: translateY(-5px); box-shadow: 0 10px 25px rgba(0,0,0,0.1); }
        .table-wrapper { overflow-x: auto; margin: 30px 0; }
        table { width: 100%; border-collapse: collapse; }
        th, td { padding: 15px; border: 1px solid #e2e8f0; text-align: left; }
        footer { background: var(--dark); color: #cbd5e1; padding: 60px 0 20px; }
        .faq-item { margin-bottom: 20px; padding: 15px; background: #f1f5f9; border-radius: 8px; cursor: pointer; }
        .faq-answer { display: none; margin-top: 10px; color: #64748b; }
        .active .faq-answer { display: block; }