:root{--primary:#0ea5e9;--secondary:#111827;--accent:#f59e0b;--muted:#6b7280;}
*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,Arial,sans-serif;color:var(--secondary);line-height:1.6}
.container{max-width:1100px;margin:0 auto;padding:24px} a{color:var(--primary);text-decoration:none}
.site-header{display:flex;justify-content:space-between;align-items:center;padding:12px 24px;border-bottom:1px solid #eee;position:sticky;top:0;background:#fff;z-index:10}
.site-header .brand{display:flex;gap:12px;align-items:center;font-weight:800;font-size:20px;color:var(--secondary)}
.site-header img{height:34px} .site-header nav a{margin-left:14px;opacity:.8} .site-header nav a:hover{opacity:1}
.hero h1{font-size:42px;margin:0} .hero .tagline{color:var(--muted)}
.hero-art{width:100%;max-width:900px;border-radius:16px;box-shadow:0 8px 24px rgba(0,0,0,.07);margin-top:14px}
.cta-row{display:flex;gap:12px;margin-top:8px} .btn{border-radius:999px;padding:10px 16px;font-weight:700;border:1px solid #e5e7eb} 
.btn-primary{background:var(--primary);color:#fff;border-color:transparent} .btn-ghost{background:#fff;color:var(--secondary)}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.feature-card{border:1px solid #eee;border-radius:14px;padding:16px}
.product-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.product-card{border:1px solid #eee;border-radius:14px;padding:16px} .price{font-weight:800}
.contact-form{display:grid;gap:12px;max-width:560px} input,textarea{padding:10px;border:1px solid #e5e7eb;border-radius:12px;font:inherit}
.site-footer{border-top:1px solid #eee;margin-top:24px;padding:20px;text-align:center;color:var(--muted)}
.warn{margin-top:16px;padding:12px;border:1px dashed #f59e0b;border-radius:12px;background:#fff7ed;color:#92400e}
.hidden{display:none}