:root { --primary: #2563eb; --dark: #1e293b; --light: #f8fafc; }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: 'PingFang SC', sans-serif; color: #334155; line-height: 1.6; background: #fff; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        header { padding: 20px 0; border-bottom: 1px solid #e2e8f0; display: flex; justify-content: space-between; align-items: center; }
        .nav-links { display: flex; gap: 0; }
        .nav-links a { padding: 0 15px; text-decoration: none; color: var(--dark); font-weight: 500; }
        .hero { padding: 80px 0; text-align: center; background: linear-gradient(135deg, #eff6ff 0%, #fff 100%); }
        .hero h1 { font-size: 2.5rem; margin-bottom: 20px; color: var(--dark); }
        .btn { padding: 12px 30px; border-radius: 8px; background: var(--primary); color: #fff; text-decoration: none; display: inline-block; transition: 0.3s; }
        section { padding: 60px 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; transition: 0.3s; }
        .card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px 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; }
        footer { background: var(--dark); color: #cbd5e1; padding: 40px 0; text-align: center; }