:root {
      --primary: #1D7BFF;
      --primary-hover: #155ec2;
      --bg-dark: #0B132B;
      --bg-dark-accent: #1C2541;
      --bg-light: #F0F4F8;
      --text-dark: #1E293B;
      --text-light: #94A3B8;
      --border-color: rgb(229,231,235);
      --card-bg: #FFFFFF;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; background-color: var(--bg-light); color: var(--text-dark); line-height: 1.6; }
    a { text-decoration: none; color: inherit; transition: var(--transition); }
    img { max-width: 100%; height: auto; }
    
    
    header { background-color: var(--bg-dark); border-bottom: 1px solid rgba(255,255,255,0.1); position: sticky; top: 0; z-index: 100; }
    .header-container { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; padding: 15px 20px; }
    .logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
    .logo img { display: block; height: 40px; width: auto; max-width: 160px; object-fit: contain; flex-shrink: 0; }
    .logo span { display: inline-block; font-size: 18px; font-weight: 800; line-height: 1; color: #fff; white-space: nowrap; }
    
    nav.desktop-nav { display: flex; align-items: center; gap: 24px; }
    nav.desktop-nav a { color: rgba(255,255,255,0.8); font-size: 15px; font-weight: 500; }
    nav.desktop-nav a:hover { color: var(--primary); }
    .nav-cta { display: inline-flex; align-items: center; background-color: var(--primary); color: #fff; padding: 8px 16px; border-radius: 6px; font-weight: 600; font-size: 14px; }
    .nav-cta:hover { background-color: var(--primary-hover); }
    
    .menu-toggle { display: none; background: none; border: none; color: #fff; font-size: 24px; cursor: pointer; }
    
    
    .mobile-drawer-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.6); z-index: 1000; display: none; opacity: 0; transition: var(--transition); backdrop-filter: blur(4px); }
    .mobile-drawer { position: fixed; top: 0; left: -280px; width: 280px; height: 100%; background: var(--bg-dark); color: #fff; z-index: 1001; transition: var(--transition); display: flex; flex-direction: column; padding: 20px; box-sizing: border-box; }
    .mobile-drawer.active { left: 0; }
    .mobile-drawer-overlay.active { display: block; opacity: 1; }
    .drawer-header { display: flex; align-items: center; justify-content: space-between; padding-bottom: 20px; border-bottom: 1px solid rgba(255,255,255,0.1); margin-bottom: 20px; }
    .drawer-close { background: none; border: none; color: #fff; font-size: 28px; cursor: pointer; }
    .drawer-nav { display: flex; flex-direction: column; gap: 16px; }
    .drawer-nav a { color: rgba(255,255,255,0.8); font-size: 16px; font-weight: 500; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
    .drawer-nav a:hover { color: var(--primary); }

    
    .page-banner { background: linear-gradient(135deg, var(--bg-dark-accent) 0%, var(--bg-dark) 100%); color: #fff; padding: 60px 20px; text-align: center; }
    .banner-container { max-width: 1200px; margin: 0 auto; }
    .banner-container h1 { font-size: 36px; font-weight: 800; margin-bottom: 10px; }
    .breadcrumbs { display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 14px; color: var(--text-light); }
    .breadcrumbs a:hover { color: var(--primary); }

    
    .download-section { max-width: 1100px; margin: 60px auto; padding: 0 20px; }
    .download-card-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-bottom: 60px; align-items: center; }
    .download-visual { background: var(--bg-dark-accent); border-radius: 16px; padding: 40px; text-align: center; border: 1px solid rgba(255,255,255,0.1); }
    .download-visual img { max-width: 250px; filter: drop-shadow(0 15px 30px rgba(0,0,0,0.5)); }
    
    .download-info h2 { font-size: 28px; font-weight: 800; color: var(--bg-dark); margin-bottom: 15px; }
    .download-info p { font-size: 15px; color: var(--text-light); margin-bottom: 30px; line-height: 1.7; }
    .download-buttons { display: flex; flex-direction: column; gap: 15px; }
    .btn-download { display: flex; align-items: center; gap: 15px; padding: 16px 24px; border-radius: 10px; background: #fff; border: 1px solid var(--border-color); font-weight: 600; text-align: left; }
    .btn-download:hover { border-color: var(--primary); background-color: rgba(29,123,255,0.02); transform: translateY(-2px); }
    .btn-download .btn-icon { font-size: 28px; color: var(--primary); }
    .btn-download div span { display: block; font-size: 12px; color: var(--text-light); font-weight: normal; }

    
    .steps-section { background: #fff; border-radius: 16px; border: 1px solid var(--border-color); padding: 40px; }
    .steps-section h3 { font-size: 22px; font-weight: 800; color: var(--bg-dark); margin-bottom: 30px; text-align: center; }
    .steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 30px; }
    .step-item { display: flex; gap: 15px; }
    .step-number { width: 40px; height: 40px; background: rgba(29,123,255,0.1); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; color: var(--primary); flex-shrink: 0; }
    .step-content h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
    .step-content p { font-size: 13px; color: var(--text-light); line-height: 1.5; }

    
    footer { background-color: var(--bg-dark); color: #fff; padding: 60px 20px 30px 20px; font-size: 14px; border-top: 1px solid rgba(255,255,255,0.05); }
    .footer-container { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.05); }
    .footer-brand { grid-column: span 2; }
    .footer-brand p { color: var(--text-light); margin-top: 15px; line-height: 1.6; max-width: 320px; }
    .footer-group h4 { font-size: 16px; font-weight: 700; margin-bottom: 20px; color: #fff; }
    .footer-group ul { list-style: none; }
    .footer-group ul li { margin-bottom: 12px; }
    .footer-group ul li a { color: var(--text-light); }
    .footer-group ul li a:hover { color: var(--primary); }
    .footer-bottom { max-width: 1200px; margin: 40px auto 0 auto; display: flex; justify-content: space-between; align-items: center; color: var(--text-light); flex-wrap: wrap; gap: 20px; }

    @media (max-width: 768px) {
      .desktop-nav { display: none; }
      .menu-toggle { display: block; }
      .download-card-grid { grid-template-columns: 1fr; }
    }