*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#1b2430;line-height:1.55;background:#fff}
a{color:#0b6bcb}.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
header{border-bottom:1px solid #e6eaf0}header .wrap{display:flex;justify-content:space-between;align-items:center;height:64px}
.logo{font-weight:800;font-size:22px;color:#0b3d6e;text-decoration:none}.logo span{color:#f07a1a}
nav a{margin-left:18px;text-decoration:none;color:#1b2430;font-size:15px}
.btn{display:inline-block;background:#f07a1a;color:#fff;padding:12px 22px;border-radius:8px;text-decoration:none;font-weight:700;border:0;font-size:16px;cursor:pointer}
.btn.alt{background:#fff;color:#0b3d6e;border:2px solid #0b3d6e}
.hero{background:linear-gradient(135deg,#0b3d6e,#145a9c);color:#fff;padding:72px 0}.hero h1{font-size:42px;line-height:1.15;margin:0 0 16px}.hero p{font-size:19px;max-width:640px;opacity:.95}.hero .btn{margin:8px 10px 0 0}
section{padding:60px 0}section.alt{background:#f5f8fb}h2{font-size:30px;margin:0 0 12px}.sub{color:#556}
.grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));margin-top:28px}
.card{background:#fff;border:1px solid #e1e6ee;border-radius:12px;padding:24px}.card h3{margin-top:0}
.price{font-size:38px;font-weight:800;color:#0b3d6e}.price small{font-size:16px;color:#667;font-weight:400}
.featured{border:2px solid #f07a1a}.note{font-size:14px;color:#667}
.demo{font-size:28px;font-weight:800;letter-spacing:1px}
ul.x li{margin:6px 0}
form{display:grid;gap:12px;max-width:560px}input,select,textarea{font:inherit;padding:11px;border:1px solid #c5ccd6;border-radius:8px;width:100%}
label{font-weight:600;font-size:14px}#msg{font-weight:600}
details{border-bottom:1px solid #e1e6ee;padding:14px 0}summary{font-weight:700;cursor:pointer}
footer{background:#0f1c2b;color:#c9d3df;padding:36px 0;font-size:14px}footer a{color:#fff}
@media(max-width:640px){.hero h1{font-size:31px}nav{display:none}}