:root{--brand:#0b3d6b;--brand2:#1a7f37;--accent:#ff6a00;--bg:#f5f7fa;--card:#fff;--line:#e3e9f0;--txt:#1a1a1a;--mut:#697586}
*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI",Roboto,Arial,sans-serif;color:var(--txt);background:var(--bg);line-height:1.45}
a{color:inherit;text-decoration:none}
img{display:block}
header.site{position:sticky;top:0;z-index:50;background:var(--brand);color:#fff;box-shadow:0 2px 10px rgba(0,0,0,.12)}
.wrap{max-width:1200px;margin:0 auto;padding:0 16px}
.hrow{display:flex;align-items:center;gap:14px;height:62px}
.brand{font-weight:800;font-size:20px;white-space:nowrap;letter-spacing:.3px}
.brand span{color:#ffd24a}
.search{flex:1;position:relative;min-width:120px}
.search input{width:100%;height:40px;border-radius:10px;border:none;padding:0 14px 0 38px;font-size:14px;outline:none}
.search::before{content:"🔍";position:absolute;left:12px;top:9px;opacity:.6}
.hbtns{display:flex;gap:8px;align-items:center}
.btn{cursor:pointer;border:none;border-radius:10px;padding:10px 14px;font-size:14px;font-weight:600;transition:.15s}
.btn:hover{filter:brightness(1.08)}
.btn.primary{background:var(--accent);color:#fff}
.btn.green{background:var(--brand2);color:#fff}
.btn.ghost{background:rgba(255,255,255,.14);color:#fff}
.cartbtn{position:relative}
.badge{position:absolute;top:-6px;right:-6px;background:var(--accent);color:#fff;border-radius:999px;font-size:11px;min-width:18px;height:18px;display:flex;align-items:center;justify-content:center;padding:0 4px}
.hero{background:linear-gradient(120deg,#0b3d6b,#1a5a8f);color:#fff;padding:26px 0}
.hero h1{margin:0 0 6px;font-size:24px}
.hero p{margin:0;opacity:.9;font-size:14px}
.toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:16px 0}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{cursor:pointer;background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 14px;font-size:13px;font-weight:600;color:var(--mut)}
.chip.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.spacer{flex:1}
select{height:38px;border-radius:9px;border:1px solid var(--line);padding:0 10px;background:#fff;font-size:13px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;display:flex;flex-direction:column;transition:.15s}
.card:hover{box-shadow:0 8px 22px rgba(11,61,107,.12);transform:translateY(-2px)}
.card .thumb{aspect-ratio:1/1;background:#fff;display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--line)}
.card .thumb img{width:100%;height:100%;object-fit:contain;padding:8px}
.card .body{padding:10px 12px;display:flex;flex-direction:column;gap:6px;flex:1}
.card .name{font-size:13px;font-weight:600;line-height:1.35;height:52px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical}
.card .zh{color:var(--mut);font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card .price{color:var(--accent);font-weight:800;font-size:16px}
.card .from{font-size:11px;color:var(--mut);font-weight:400}
.card .add{margin-top:auto}
.loadmore{display:block;margin:22px auto;padding:12px 26px;background:#fff;border:1px solid var(--line);border-radius:12px;font-weight:700;cursor:pointer;color:var(--brand)}
.empty{text-align:center;color:var(--mut);padding:60px 0}

/* drawer */
.overlay{position:fixed;inset:0;background:rgba(10,20,35,.45);opacity:0;pointer-events:none;transition:.2s;z-index:80}
.overlay.show{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;right:0;height:100%;width:420px;max-width:92vw;background:#fff;z-index:90;transform:translateX(105%);transition:.25s;display:flex;flex-direction:column}
.drawer.show{transform:none}
.drawer .dhead{padding:16px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.drawer .dhead b{font-size:17px}
.drawer .items{flex:1;overflow:auto;padding:10px 16px}
.drawer .dfoot{border-top:1px solid var(--line);padding:16px}
.ci{display:flex;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}
.ci img{width:56px;height:56px;object-fit:contain;border:1px solid var(--line);border-radius:8px;background:#fff}
.ci .t{flex:1;font-size:13px;font-weight:600}
.ci .v{font-size:11px;color:var(--mut)}
.qty{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.qty button{border:none;background:#f3f6fa;width:26px;cursor:pointer}
.qty input{width:34px;border:none;text-align:center;font-size:13px}
.total{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:12px}
.total b{font-size:20px;color:var(--accent)}
.close{cursor:pointer;font-size:22px;line-height:1;background:none;border:none}

/* forms */
.field{margin-bottom:10px}
.field label{display:block;font-size:12px;font-weight:600;color:var(--mut);margin-bottom:4px}
.field input,.field textarea{width:100%;border:1px solid var(--line);border-radius:9px;padding:10px;font-size:14px;outline:none;font-family:inherit}
.field textarea{min-height:64px;resize:vertical}
.contact{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.contact a{flex:1;text-align:center;padding:11px;border-radius:10px;font-weight:700;font-size:14px}
.zalo{background:#0068ff;color:#fff}
.tel{background:var(--brand2);color:#fff}
.mail{background:#5b6b7c;color:#fff}

/* product page */
.pdp{display:grid;grid-template-columns:1fr 1fr;gap:26px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;margin:18px 0}
.pdp .big{aspect-ratio:1/1;border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;background:#fff}
.pdp .big img{width:100%;height:100%;object-fit:contain;padding:14px}
.pdp h1{font-size:20px;margin:0 0 6px}
.pdp .zh{color:var(--mut);font-size:13px;margin-bottom:10px}
.pdp .price{color:var(--accent);font-size:28px;font-weight:800;margin:10px 0}
.pdp .desc{color:var(--mut);font-size:13px;margin-top:10px;border-top:1px dashed var(--line);padding-top:10px}
.varlist{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.varlist button{border:1px solid var(--line);background:#fff;border-radius:9px;padding:8px 12px;font-size:13px;cursor:pointer}
.varlist button.active{border-color:var(--accent);color:var(--accent);font-weight:700}
footer.site{margin-top:36px;background:#0b2338;color:#c7d3df;padding:26px 0;font-size:13px}
footer.site a{color:#ffd24a}
@media(max-width:720px){.pdp{grid-template-columns:1fr}.brand{font-size:16px}.hero h1{font-size:19px}}