body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        header { background: linear-gradient(135deg, #006994, #00A8E8); color: white; padding: 20px; border-radius: 10px; margin-bottom: 30px; }
        .logo { font-size: 28px; font-weight: bold; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); }
        nav { display: flex; justify-content: space-between; align-items: center; }
        .mobile-toggle { display: none; cursor: pointer; }
        @media (max-width: 768px) {
            .mobile-toggle { display: block; }
            nav ul { display: none; }
            nav.active ul { display: flex; flex-direction: column; }
        }
        h1 { color: #006994; margin-top: 0; }
        h2 { color: #00A8E8; border-bottom: 2px solid #eee; padding-bottom: 5px; }
        .btn { display: inline-block; background: #FF6B35; color: white; padding: 10px 20px; border-radius: 5px; text-decoration: none; margin: 10px 0; }
        .download-section { background: #f8f9fa; padding: 20px; border-radius: 10px; margin: 20px 0; }
        footer { margin-top: 50px; padding-top: 20px; border-top: 1px solid #eee; }
        .tag-cloud { margin: 20px 0; }
        .tag { display: inline-block; background: #eee; padding: 5px 10px; border-radius: 20px; margin: 5px; }