:root{--navy:#0b1730;--blue:#0878d1;--sky:#eaf5ff;--ink:#14243a;--muted:#64748b;--line:#dbe4ee;--white:#fff;--bg:#f7fafc;--green:#0e9f6e}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}.wrap{width:min(1180px,92%);margin:auto}.topbar{background:var(--navy);color:#cbd5e1;font-size:13px}.topin{display:flex;justify-content:space-between;padding:8px 0}.site-header{background:#fff;position:sticky;top:0;z-index:50;box-shadow:0 4px 20px rgba(15,23,42,.07)}.nav{display:flex;align-items:center;justify-content:space-between;min-height:78px}.brand{display:flex;gap:10px;align-items:center;color:var(--navy);text-decoration:none}.brandmark{width:44px;height:44px;border-radius:12px;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:900;letter-spacing:-1px}.brand 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b{display:block;font-size:12px;color:var(--muted);text-transform:uppercase}.form-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field label{display:block;font-weight:800;font-size:13px;margin-bottom:6px}.field input,.field textarea,.field select{width:100%;padding:12px;border:1px solid #cbd5e1;border-radius:8px;font:inherit}.field textarea{min-height:140px}.full{grid-column:1/-1}.footer{background:#071226;color:#cbd5e1;padding:55px 0 0}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:35px}.footer h4{color:#fff;margin-top:0}.footer a{color:#cbd5e1;text-decoration:none}.footer-brand{color:#fff}.copyright{border-top:1px solid rgba(255,255,255,.1);text-align:center;padding:18px;margin-top:35px;font-size:13px}.notice{padding:13px 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var(--line);padding:30px;border-radius:16px}.mini-img{width:55px;height:45px;object-fit:cover;border-radius:6px;background:#eef5fb}@media(max-width:900px){nav{display:none}.menu{display:block}.nav-open nav{display:flex;position:absolute;top:78px;left:0;right:0;background:#fff;padding:18px;flex-direction:column;align-items:stretch;box-shadow:0 12px 25px rgba(0,0,0,.1)}.cards{grid-template-columns:repeat(2,1fr)}.stats{grid-template-columns:repeat(2,1fr)}.product-layout{grid-template-columns:1fr}.sidebar{position:static}.product-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.detail{grid-template-columns:1fr}.admin-shell{grid-template-columns:1fr}.admin-side{position:static}.feature-grid{grid-template-columns:1fr}}@media(max-width:600px){.topin{flex-direction:column;gap:2px}.cards,.product-grid,.stats,.footer-grid,.form-grid,.specs{grid-template-columns:1fr}.hero{min-height:600px}.section{padding:55px 0}.section-head 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