body { margin:0; font-family:'Noto Sans KR',sans-serif; background:#000; color:#fff; }
header { display:flex; justify-content:space-between; align-items:center; padding:20px 40px; background:#111; position:sticky; top:0; }
.logo { font-weight:700; font-size:1.2rem; letter-spacing:1px; }
nav a { color:#ccc; text-decoration:none; margin-left:20px; }
nav a.active, nav a:hover { color:#fff; }
.hero { position:relative; height:90vh; background:url('factory-building.jpg') center/cover no-repeat; display:flex; justify-content:center; align-items:center; text-align:center; }
.overlay { position:absolute; top:0; left:0; width:100%; height:100%; background:rgba(0,0,0,0.55); }
.content { position:relative; z-index:2; }
h1 { font-size:2.5rem; line-height:1.4; }
.sub { margin-top:1rem; color:#ccc; }
.btn { display:inline-block; margin-top:2rem; padding:0.8rem 1.6rem; background:#fff; color:#000; border-radius:2rem; text-decoration:none; }
.page { padding:100px 20px; text-align:center; }
.page h1 { font-size:2rem; margin-bottom:20px; }
.page p { color:#ccc; line-height:1.8; max-width:800px; margin:0 auto 40px; }
.product-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:30px; max-width:1100px; margin:0 auto; }
.product-card { background:#111; border-radius:12px; padding:20px; box-shadow:0 4px 20px rgba(0,0,0,0.4); }
footer { background:#000; text-align:center; padding:40px 0; color:#888; font-size:0.9rem; }