body{margin:0;font-family:Arial,sans-serif;background:#f5f7fb;color:#233}header{display:flex;justify-content:space-between;align-items:center;padding:18px 8%;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.08);position:sticky;top:0}.logo img{height:46px}.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;padding:70px 8%;align-items:center}.hero h1{font-size:58px;line-height:1.1}.hero h1 span{color:#3366ff}.btn{display:inline-block;padding:14px 28px;background:#3366ff;color:#fff;text-decoration:none;border-radius:10px;margin-right:10px}.phone{background:#fff;border-radius:28px;box-shadow:0 15px 40px rgba(0,0,0,.12);padding:24px}.phone img{width:100%;border-radius:22px}.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;padding:30px 8% 70px}.card{background:#fff;padding:24px;border-radius:18px;box-shadow:0 8px 24px rgba(0,0,0,.08)}footer{background:#111827;color:#fff;padding:25px 8%;display:flex;justify-content:space-between;flex-wrap:wrap}a{color:inherit}@media(max-width:900px){.hero{grid-template-columns:1fr}.hero h1{font-size:42px}}