*{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif}
body{color:#333;background:#f4f6f8;line-height:1.6}
.container{max-width:1200px;margin:auto;padding:3rem 1.5rem}
header{background:#fff;border-bottom:1px solid #ddd;position:sticky;top:0;z-index:10}
.header-inner{display:flex;justify-content:space-between;align-items:center}
.logo{font-size:1.6rem;font-weight:bold}
.logo span{display:block;font-size:.8rem;color:#666}
nav a{margin-left:1.2rem;text-decoration:none;color:#333;font-size:.95rem}
.hero{background:#e9edf2}
.hero-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:2rem;align-items:center}
.hero-img{background:#cbd5e1;height:260px}
.lead{font-size:1.2rem;margin:1rem 0}
.btn{display:inline-block;margin-top:1rem;background:#0052cc;color:#fff;padding:.7rem 1.4rem;text-decoration:none}
h2{text-align:center;margin-bottom:2rem}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.5rem}
.box{background:#fff;padding:1.8rem;border:1px solid #ddd}
.alt{background:#fff}
.center{text-align:center}
.tech{list-style:none;display:flex;flex-wrap:wrap;justify-content:center;gap:1rem}
.tech li{background:#e1e6eb;padding:.6rem 1rem;font-size:.9rem}
footer{background:#222;color:#aaa;text-align:center;padding:1.5rem}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}.hero-img{display:none}}