:root { --primary-color: #2563eb; --text-color: #1f2937; --bg-color: #ffffff; --accent-color: #eff6ff; }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; line-height: 1.6; color: var(--text-color); background: var(--bg-color); }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        header { background: #fff; border-bottom: 1px solid #e5e7eb; padding: 15px 0; position: sticky; top: 0; z-index: 1000; }
        nav { display: flex; justify-content: space-between; align-items: center; }
        .nav-links { display: flex; gap: 0; align-items: center; }
        .nav-links a { text-decoration: none; color: #374151; padding: 10px 15px; font-weight: 500; transition: color 0.3s; }
        .hero { padding: 80px 0; text-align: center; background: linear-gradient(135deg, #eff6ff 0%, #ffffff 100%); }
        .hero h1 { font-size: 3rem; margin-bottom: 20px; color: #111827; }
        .btn { display: inline-block; padding: 12px 30px; background: var(--primary-color); color: white; border-radius: 8px; text-decoration: none; font-weight: 600; transition: transform 0.2s; }
        .section { padding: 60px 0; }
        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
        .card { padding: 25px; border: 1px solid #e5e7eb; border-radius: 12px; transition: box-shadow 0.3s; background: #fff; }
        .card:hover { box-shadow: 0 10px 25px rgba(0,0,0,0.1); }
        footer { background: #111827; color: #9ca3af; padding: 40px 0; text-align: center; }
        table { width: 100%; border-collapse: collapse; margin-top: 20px; }
        th, td { border: 1px solid #e5e7eb; padding: 12px; text-align: left; }
        .faq-item { margin-bottom: 15px; border-bottom: 1px solid #eee; padding-bottom: 10px; }