:root { --primary: #00d4ff; --dark: #1a1a1a; --text: #333; --bg: #f8fbfe; --accent: #0056b3; }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: 'PingFang SC', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        header { background: #fff; padding: 15px 0; position: sticky; top: 0; z-index: 1000; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
        .nav-wrapper { display: flex; align-items: center; justify-content: space-between; }
        .nav-links { display: flex; align-items: center; gap: 0; }
        .nav-links a { padding: 0 15px; text-decoration: none; color: var(--dark); font-weight: 500; font-size: 14px; }
        .hero { padding: 80px 0; text-align: center; background: linear-gradient(135deg, #e0f7ff, #ffffff); }
        h1 { font-size: 3rem; margin-bottom: 20px; color: var(--dark); }
        .btn-primary { background: var(--primary); color: #fff; padding: 12px 30px; border-radius: 5px; text-decoration: none; display: inline-block; font-weight: bold; }
        .section { padding: 60px 0; }
        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; }
        .card { background: #fff; padding: 30px; border-radius: 10px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); transition: 0.3s; }
        .card:hover { transform: translateY(-5px); }
        table { width: 100%; border-collapse: collapse; margin: 20px 0; }
        th, td { border: 1px solid #ddd; padding: 12px; text-align: left; }
        .faq-item { margin-bottom: 15px; border-bottom: 1px solid #eee; }
        .faq-q { font-weight: bold; cursor: pointer; padding: 15px 0; display: flex; justify-content: space-between; }
        .faq-a { display: none; padding-bottom: 15px; color: #666; }
        footer { background: var(--dark); color: #ccc; padding: 40px 0; text-align: center; }
        .footer-links a { color: #fff; margin: 0 10px; text-decoration: none; }
        @media (max-width: 768px) { .nav-links { display: none; } h1 { font-size: 2rem; } }