:root {
            --primary: rgb(2,132,199);
            --primary-hover: rgb(2,100,160);
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --text-main: #0f172a;
            --text-sub: #475569;
            --border: #e2e8f0;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; font-family: -apple-system, sans-serif; }
        body { background-color: var(--bg-body); color: var(--text-main); line-height: 1.6; }
        a { text-decoration: none; color: inherit; transition: 0.3s; }
        ul { list-style: none; }
        img { max-width: 100%; height: auto; display: block; }

        .header { background: rgba(255,255,255,0.95); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 100; border-bottom: 1px solid var(--border); }
        .nav-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; height: 70px; display: flex; justify-content: space-between; align-items: center; }
        .logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
        .logo img { display: block; height: 36px; width: auto; max-width: 160px; object-fit: contain; flex-shrink: 0; }
        .logo span { display: inline-block; font-size: 20px; font-weight: 800; line-height: 1; color: var(--primary); white-space: nowrap; }
        .desktop-nav { display: flex; gap: 30px; align-items: center; }
        .desktop-nav a { font-weight: 500; font-size: 16px; }
        .header-action { display: flex; gap: 15px; }
        .btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 24px; border-radius: 8px; font-weight: 600; cursor: pointer; }
        .btn-primary { background: var(--primary); color: #fff; }
        .mobile-toggle { display: none; font-size: 24px; cursor: pointer; }
        
        .drawer-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 999; opacity: 0; visibility: hidden; transition: 0.3s; }
        .drawer-overlay.active { opacity: 1; visibility: visible; }
        .drawer { position: fixed; top: 0; left: -300px; width: 280px; height: 100vh; background: #fff; z-index: 1000; transition: 0.3s; display: flex; flex-direction: column; }
        .drawer.active { left: 0; }
        .drawer-header { padding: 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
        .drawer-close { font-size: 24px; cursor: pointer; }
        .drawer-nav { padding: 20px; flex: 1; }
        .drawer-nav a { display: block; padding: 12px 0; border-bottom: 1px solid #f1f5f9; }

        .dl-hero { background: linear-gradient(135deg, #0284c7 0%, #0c4a6e 100%); padding: 100px 20px; color: #fff; }
        .dl-container { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
        .dl-text h1 { font-size: 48px; margin-bottom: 20px; line-height: 1.2; }
        .dl-text p { font-size: 18px; opacity: 0.9; margin-bottom: 40px; }
        
        .dl-box { background: rgba(255,255,255,0.1); padding: 30px; border-radius: 20px; display: inline-flex; gap: 30px; align-items: center; backdrop-filter: blur(10px); border: 1px solid rgba(255,255,255,0.2); }
        .qr-code { width: 150px; height: 150px; background: #fff; padding: 10px; border-radius: 12px; }
        .dl-btns { display: flex; flex-direction: column; gap: 15px; }
        .btn-app { background: #fff; color: var(--text-main); font-size: 16px; padding: 15px 30px; border-radius: 50px; font-weight: bold; display: flex; align-items: center; gap: 10px; transition: transform 0.2s; }
        .btn-app:hover { transform: translateY(-3px); box-shadow: 0 10px 20px rgba(0,0,0,0.2); color: var(--primary); }
        .btn-app i { font-size: 24px; }

        .dl-visual { text-align: center; }
        .dl-visual img { max-width: 80%; margin: 0 auto; filter: drop-shadow(0 30px 40px rgba(0,0,0,0.5)); }

        .steps-section { padding: 80px 20px; background: var(--bg-card); }
        .section-title { text-align: center; font-size: 32px; margin-bottom: 60px; color: var(--text-main); }
        .steps-grid { max-width: 1000px; margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
        .step-card { text-align: center; position: relative; }
        .step-num { width: 50px; height: 50px; background: var(--primary); color: #fff; font-size: 24px; font-weight: bold; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; box-shadow: 0 5px 15px rgba(2,132,199,0.3); }
        .step-card h3 { font-size: 20px; margin-bottom: 15px; }
        .step-card p { color: var(--text-sub); }

        .footer { background: #0f172a; color: #cbd5e1; padding: 80px 20px 30px; }
        .footer-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 50px; margin-bottom: 50px; }
        .footer-brand p { margin-top: 20px; max-width: 300px; line-height: 1.8; }
        .footer-title { color: #fff; font-size: 18px; margin-bottom: 20px; }
        .footer-nav li { margin-bottom: 12px; }
        .footer-bottom { max-width: 1200px; margin: 0 auto; padding-top: 30px; border-top: 1px solid rgba(255,255,255,0.1); text-align: center; font-size: 14px; }

        @media (max-width: 992px) { .dl-container { grid-template-columns: 1fr; text-align: center; } .dl-box { flex-direction: column; } .steps-grid { grid-template-columns: 1fr; } }
        @media (max-width: 768px) { .desktop-nav, .header-action { display: none; } .mobile-toggle { display: block; } .footer-grid { grid-template-columns: 1fr; } }