:root{
      --blue:#007BFF;
      --green:#32CD32;
      --dark:#222;
      --muted:#6b7280;
      --bg:#fbfbfd;
      --card:#ffffff;
      --radius:12px;
      --max-width:1100px;
      font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
    }
    html,body{height:100%;margin:0;background:var(--bg);color:var(--dark);}
    .container{max-width:var(--max-width);margin:0 auto;padding:36px;}
    header{display:flex;align-items:center;justify-content:space-between;padding:8px 0 28px;}
    .logo{display:flex;align-items:center;gap:12px;font-weight:700;font-size:20px;color:var(--dark);}
    .logo .mark{width:44px;height:44px;background:linear-gradient(180deg,var(--blue),#2a9df4);border-radius:10px;display:flex;align-items:center;justify-content:center;color:white;box-shadow:0 6px 18px rgba(2,6,23,0.06);}
    nav a{margin-left:18px;color:var(--muted);text-decoration:none;font-weight:600}
    nav a.cta{background:var(--green);color:white;padding:10px 14px;border-radius:8px;text-decoration:none}

    .hero{display:grid;grid-template-columns:1fr 1px;gap:36px;align-items:center;padding:28px 12px;background:linear-gradient(180deg, rgba(255,255,255,0.6), rgba(255,255,255,0.95));border-radius:16px;}
    .hero h1{font-size:56px;line-height:1.02;margin:0 0 18px;font-weight:800;color:var(--dark);}
    .hero p.lead{font-size:18px;margin:0 0 24px;color:var(--muted);max-width:620px;}
    .cta-row{display:flex;gap:12px;align-items:center;}
    .btn-primary{background:var(--green);border:none;color:white;padding:14px 20px;border-radius:12px;font-weight:700;font-size:16px;cursor:pointer;box-shadow:0 8px 20px rgba(50,205,50,0.12)}
    .btn-ghost{background:transparent;border:2px solid #e6e6e9;padding:12px 16px;border-radius:12px;font-weight:700;color:var(--dark);cursor:pointer}

    .hero-graphic{display:flex;align-items:center;justify-content:center;}
    .hero-graphic img{max-width:100%;border-radius:14px;box-shadow:0 10px 30px rgba(2,6,23,0.06)}

    .features{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:28px;}
    .card{background:var(--card);padding:18px;border-radius:12px;box-shadow:0 6px 18px rgba(2,6,23,0.04);display:flex;gap:12px;align-items:flex-start}
    .card .icon{width:54px;height:54px;border-radius:10px;background:#f3f8ff;display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--blue);}
    .card h4{margin:0 0 6px;font-size:16px}
    .card p{margin:0;color:var(--muted);font-size:14px}

    .products{display:flex;gap:16px;margin-top:22px;}
    .product{background:var(--card);padding:12px;border-radius:10px;flex:1;display:flex;flex-direction:column;gap:8px;align-items:flex-start;}
    .product img{width:100%;height:140px;object-fit:cover;border-radius:8px;background:#f3f4f6}
    .product .title{font-weight:700}
    .product .buy{margin-top:auto;background:var(--blue);color:white;padding:8px 10px;border-radius:8px;text-decoration:none;font-size:14px;}

    footer{margin-top:44px;padding:18px 0;color:var(--muted);font-size:13px;display:flex;justify-content:space-between;align-items:center}

    /* responsive */
    @media (max-width:960px){
      .hero{grid-template-columns:1fr; text-align:center;}
      .hero-graphic{order:-1;margin-bottom:8px;}
      .features{grid-template-columns:1fr; margin-top:18px;}
      .products{flex-direction:column;}
    }