:root{--hkv-red:#e31c25;--hkv-red-dark:#b81219;--hkv-zalo:#0068ff;--hkv-gray:#f4f5f7;--hkv-border:#e2e5ea;--hkv-text:#1a1a2e;--hkv-muted:#6b7280;--hkv-green:#16a34a;--hkv-orange:#ea580c;--hkv-radius:10px;--hkv-shadow:0 2px 12px rgba(0,0,0,.08);--hkv-cols:4}.hkv-catalog *{box-sizing:border-box}.hkv-catalog{font-family:'Segoe UI',Arial,sans-serif;color:var(--hkv-text);max-width:1400px;margin:0 auto;padding:0 12px 40px}.hkv-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:18px 0 14px;border-bottom:3px solid var(--hkv-red);margin-bottom:20px}.hkv-brand{display:block;font-size:26px;font-weight:800;color:var(--hkv-red);letter-spacing:2px}.hkv-subtitle{font-size:12px;color:var(--hkv-muted);letter-spacing:.5px}.hkv-topbar-actions{display:flex;gap:10px;flex-wrap:wrap}.hkv-btn{display:inline-flex;align-items:center;gap:6px;padding:9px 18px;border-radius:6px;font-size:13px;font-weight:600;text-decoration:none!important;cursor:pointer;border:none;transition:all .18s ease;line-height:1}.hkv-btn svg{width:15px;height:15px;flex-shrink:0}.hkv-btn-outline{background:#fff;border:2px solid var(--hkv-red);color:var(--hkv-red)}.hkv-btn-outline:hover{background:var(--hkv-red);color:#fff}.hkv-btn-zalo{background:var(--hkv-zalo);color:#fff}.hkv-btn-zalo:hover{background:#0055d4;color:#fff}.hkv-btn-sm{padding:7px 12px;font-size:12px;border-radius:5px}.hkv-btn-quote{background:#fff;border:1.5px solid var(--hkv-border);color:var(--hkv-text)}.hkv-btn-quote:hover{border-color:var(--hkv-red);color:var(--hkv-red)}.hkv-btn-buy{background:var(--hkv-zalo);color:#fff}.hkv-btn-buy:hover{background:#0055d4;color:#fff}.hkv-btn-disabled{opacity:.45;cursor:not-allowed;pointer-events:none}.hkv-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:14px}.hkv-search-wrap{position:relative;flex:1;min-width:200px;max-width:340px}.hkv-search-icon{position:absolute;left:10px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--hkv-muted)}#hkv-search{width:100%;padding:9px 12px 9px 34px;border:1.5px solid var(--hkv-border);border-radius:7px;font-size:13px;outline:none;transition:border .15s}#hkv-search:focus{border-color:var(--hkv-red)}.hkv-tabs{display:flex;flex-wrap:wrap;gap:6px}.hkv-tab{padding:7px 14px;border-radius:20px;border:1.5px solid var(--hkv-border);background:#fff;font-size:12px;font-weight:600;cursor:pointer;color:var(--hkv-muted);transition:all .15s}.hkv-tab:hover,.hkv-tab.active{background:var(--hkv-red);border-color:var(--hkv-red);color:#fff}.hkv-stats{font-size:12px;color:var(--hkv-muted);margin-bottom:16px}.hkv-stats #hkv-count{font-weight:700;color:var(--hkv-red);font-size:15px}.hkv-grid{display:grid;grid-template-columns:repeat(var(--hkv-cols),1fr);gap:18px}@media (max-width:1100px){.hkv-grid{--hkv-cols:3 !important}}@media (max-width:768px){.hkv-grid{--hkv-cols:2 !important}}@media (max-width:480px){.hkv-grid{--hkv-cols:1 !important}}.hkv-card{background:#fff;border:1.5px solid var(--hkv-border);border-radius:var(--hkv-radius);box-shadow:var(--hkv-shadow);display:flex;flex-direction:column;overflow:hidden;transition:transform .2s,box-shadow .2s}.hkv-card:hover{transform:translateY(-3px);box-shadow:0 8px 28px rgb(0 0 0 / .12)}.hkv-card.hkv-hidden{display:none}.hkv-card-img{position:relative;background:var(--hkv-gray);height:180px;display:flex;align-items:center;justify-content:center;overflow:hidden}.hkv-card-img img{max-height:100%;max-width:100%;object-fit:contain;padding:12px;transition:transform .3s}.hkv-card:hover .hkv-card-img img{transform:scale(1.05)}.hkv-no-img{display:flex;align-items:center;justify-content:center;width:100%;height:100%;color:#ccc}.hkv-no-img svg{width:48px;height:48px}.hkv-badge{position:absolute;top:8px;right:8px;padding:3px 8px;border-radius:4px;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.hkv-badge-available{background:#dcfce7;color:var(--hkv-green)}.hkv-badge-out{background:#fee2e2;color:var(--hkv-red)}.hkv-badge-contact{background:#fff7ed;color:var(--hkv-orange)}.hkv-badge-pre{background:#eff6ff;color:var(--hkv-zalo)}.hkv-card-body{padding:12px 14px 8px;flex:1}.hkv-group-tag{font-size:9px;font-weight:700;text-transform:uppercase;color:var(--hkv-muted);letter-spacing:.7px;margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.hkv-code{font-size:13.5px;font-weight:700;color:var(--hkv-text);margin:0 0 8px;line-height:1.35;word-break:break-word}.hkv-features{list-style:none;margin:0;padding:0}.hkv-features li{font-size:11.5px;color:var(--hkv-muted);padding:2px 0 2px 14px;position:relative;line-height:1.4}.hkv-features li::before{content:'✓';position:absolute;left:0;color:var(--hkv-green);font-size:10px;top:3px}.hkv-more{color:var(--hkv-zalo)!important;cursor:pointer;font-weight:600}.hkv-more::before{content:''!important}.hkv-more:hover{text-decoration:underline}.hkv-card-footer{padding:10px 14px 12px;border-top:1px dashed var(--hkv-border);display:flex;flex-direction:column;gap:8px}.hkv-price-wrap{display:flex;flex-direction:column;gap:1px}.hkv-price{font-size:20px;font-weight:800;color:var(--hkv-red);line-height:1}.hkv-price-contact{font-size:16px}.hkv-vat{font-size:10px;color:var(--hkv-muted)}.hkv-actions{display:flex;gap:7px}.hkv-actions .hkv-btn{flex:1;justify-content:center}.hkv-modal-overlay{position:fixed;inset:0;background:rgb(0 0 0 / .55);z-index:99999;display:flex!important;align-items:center;justify-content:center;padding:20px}.hkv-modal-box{background:#fff;border-radius:12px;padding:28px;max-width:480px;width:100%;max-height:80vh;overflow-y:auto;position:relative;box-shadow:0 20px 60px rgb(0 0 0 / .25)}.hkv-modal-close{position:absolute;top:12px;right:16px;background:none;border:none;font-size:24px;cursor:pointer;color:var(--hkv-muted)}.hkv-modal-title{font-size:15px;font-weight:700;margin:0 0 14px;color:var(--hkv-red)}#hkv-modal-list{list-style:none;margin:0;padding:0}#hkv-modal-list li{padding:6px 0 6px 18px;position:relative;font-size:13px;border-bottom:1px solid var(--hkv-border);color:var(--hkv-text)}#hkv-modal-list li::before{content:'✓';position:absolute;left:0;color:var(--hkv-green)}#hkv-modal-list li:last-child{border:none}