:root { --primary: #6366f1; --accent: #ec4899; --dark: #1e293b; --light: #f8fafc; }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: 'Segoe UI', Roboto, sans-serif; line-height: 1.6; color: var(--dark); background: #ffffff; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        header { background: rgba(255,255,255,0.95); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 1000; border-bottom: 1px solid #e2e8f0; }
        nav { display: flex; align-items: center; justify-content: space-between; height: 70px; }
        .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; }
        .hero { padding: 80px 0; text-align: center; background: linear-gradient(135deg, #f1f5f9, #e0e7ff); }
        h1 { font-size: 3rem; margin-bottom: 20px; color: var(--dark); }
        .btn { display: inline-block; padding: 12px 30px; background: var(--primary); color: white; border-radius: 8px; text-decoration: none; font-weight: 600; 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-radius: 16px; background: white; border: 1px solid #e2e8f0; transition: 0.3s; }
        .card:hover { transform: translateY(-5px); box-shadow: 0 10px 25px rgba(0,0,0,0.1); }
        .faq-item { margin-bottom: 15px; border-bottom: 1px solid #e2e8f0; padding-bottom: 15px; }
        .footer { background: var(--dark); color: white; padding: 40px 0; text-align: center; }
        .float-kefu { position: fixed; right: 20px; bottom: 20px; z-index: 999; }
        table { width: 100%; border-collapse: collapse; margin: 20px 0; }
        th, td { padding: 12px; border: 1px solid #e2e8f0; text-align: left; }