:root{--navy:#073763;--blue:#0867df;--red:#ef2531;--green:#08a84f;--text:#102b49;--muted:#61758c;--line:#dce5ee;--wrap:1280px;--shadow:0 4px 18px rgba(12,48,84,.08)}*{box-sizing:border-box}html{overflow-x:hidden}body.qb-production-page{margin:0;background:#fff;color:var(--text);font-family:Arial,Helvetica,sans-serif;overflow-x:hidden}.qb-production-page a{text-decoration:none;color:inherit}.qb-production-page img{max-width:100%;display:block}.qb-wrap{width:min(var(--wrap),calc(100% - 32px));margin-inline:auto;min-width:0}.qb-top{background:#06355d;color:#fff;font-size:12px}.qb-top .qb-wrap{min-height:32px;display:flex;align-items:center;justify-content:space-between;gap:16px}.qb-top nav{display:flex;gap:16px;white-space:nowrap}.qb-head{background:#fff;position:relative;z-index:20}.qb-headrow{min-height:76px;display:grid;grid-template-columns:240px minmax(260px,1fr) 160px 105px 58px 58px;gap:12px;align-items:center}.qb-logo{display:flex;align-items:center;gap:8px;min-width:0}.qb-logomark{font-size:30px;color:var(--red)}.qb-logo b{display:block;color:#0750a0;font-size:21px;font-style:italic;white-space:nowrap}.qb-logo small{display:block;color:#e43131;font-size:10px}.qb-search{height:42px;border:2px solid #ff4552;border-radius:7px;display:flex;overflow:hidden;min-width:0}.qb-search input{border:0;outline:0;padding:0 13px;min-width:0;flex:1;font-size:13px}.qb-search button{width:52px;border:0;background:var(--red);color:#fff;font-size:22px;cursor:pointer}.qb-phone{display:flex;gap:7px;align-items:center;color:#0b4f9e;font-size:13px}.qb-phone>span{font-size:25px}.qb-phone small{display:block;color:#273b55;font-size:10px}.qb-zalo{background:#0caf58;color:#fff;padding:10px 7px;border-radius:7px;text-align:center;font-weight:700;font-size:12px}.qb-mini{display:flex;flex-direction:column;align-items:center;font-size:20px}.qb-mini small{font-size:10px;margin-top:3px}.qb-nav{background:#073763;color:#fff;box-shadow:0 2px 6px #0002}.qb-nav .qb-wrap{min-height:46px;display:flex;align-items:stretch;overflow:hidden}.qb-nav a{display:flex;align-items:center;padding:0 11px;font-weight:700;font-size:12px;white-space:nowrap}.qb-nav .catalog{background:#ef252f;font-size:13px}.qb-nav .quote{margin-left:auto;background:#ffc21c;color:#17334d}.qb-hero{background:linear-gradient(90deg,#f4f9ff,#dceaf7 55%,#d9e3eb);overflow:hidden}.qb-hero-grid{min-height:320px;display:grid;grid-template-columns:minmax(0,47%) minmax(260px,28%) minmax(260px,25%);align-items:stretch}.qb-hero-copy{padding:24px 18px 18px 0;min-width:0}.qb-kicker{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.qb-kicker b{background:var(--red);color:#fff;padding:5px 11px;border-radius:18px;font-size:12px}.qb-kicker span{font-weight:700;font-size:13px}.qb-hero h1{font-size:44px;line-height:1.02;margin:12px 0 9px;letter-spacing:-1.5px}.qb-hero h1 em{font-style:normal;color:#0750a0}.qb-hero p{font-size:15px;line-height:1.45;margin:0 0 12px}.qb-ai{height:48px;background:#fff;border:2px solid #ff5a62;border-radius:8px;display:flex;align-items:center;overflow:hidden;max-width:620px;box-shadow:var(--shadow)}.qb-ai>span{padding-left:11px;color:#1677ff}.qb-ai input{flex:1;border:0;outline:0;padding:0 10px;min-width:0;font-size:12px}.qb-ai button{height:100%;border:0;background:var(--red);color:#fff;padding:0 20px;font-weight:700;font-size:14px;white-space:nowrap}.qb-ai-result{background:#fff;border:1px solid #bad7ff;padding:10px;margin-top:8px;border-radius:8px;font-size:12px}.qb-suggest{display:flex;gap:6px;align-items:center;margin-top:8px;font-size:11px;flex-wrap:wrap}.qb-suggest button{border:1px solid #b8c9dc;background:#fff;border-radius:16px;padding:5px 8px;color:#334c69}.qb-hero-image{position:relative;min-height:320px;overflow:hidden;align-self:stretch}.qb-hero-image img{width:100%;height:100%;object-fit:cover;object-position:center}.qb-ai-features{margin:14px 0 14px 10px;background:rgba(255,255,255,.92);border:1px solid #d7e0e9;border-radius:12px;padding:7px 9px;display:grid;grid-template-columns:1fr 1fr;align-content:center;box-shadow:var(--shadow);min-width:0}.qb-ai-features div{display:flex;gap:7px;padding:10px 5px;border-bottom:1px solid #e2e8ee;min-width:0}.qb-ai-features i{flex:0 0 32px;width:32px;height:32px;border-radius:50%;background:#e8f2ff;color:#0867df;display:grid;place-items:center;font-style:normal;font-weight:700}.qb-ai-features b{font-size:11px;line-height:1.25}.qb-ai-features small{display:block;font-weight:400;line-height:1.25;margin-top:2px;color:#5c6f84}.qb-cats{padding:12px 0}.qb-catgrid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}.qb-cat{border-radius:9px;padding:7px 10px 10px;overflow:hidden;min-width:0;transition:transform .15s ease,box-shadow .15s ease}.qb-cat:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.qb-cat img{width:100%;height:130px;object-fit:contain}.qb-cat h2{font-size:16px;margin:2px 0 3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.qb-cat p{font-size:11px;margin:0 0 7px;min-height:26px}.qb-cat>b{display:block;color:#fff;text-align:center;padding:8px;border-radius:5px;font-size:11px}.qb-cat.c0{background:#e8f4ff}.qb-cat.c0>b{background:#0874e8}.qb-cat.c1{background:#fff0ef}.qb-cat.c1>b{background:#e91f2d}.qb-cat.c2{background:#eafaf0}.qb-cat.c2>b{background:#0aa84f}.qb-cat.c3{background:#f3ecff}.qb-cat.c3>b{background:#833be3}.qb-cat.c4{background:#fff3e5}.qb-cat.c4>b{background:#ed8500}.qb-trust{border-block:1px solid #e4e9ef}.qb-trust .qb-wrap{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));padding:9px 0;gap:8px}.qb-trust .qb-wrap>div{display:flex;gap:7px;align-items:center;min-width:0}.qb-trust i{flex:0 0 32px;width:32px;height:32px;background:#eaf4ff;color:#0874e8;border-radius:50%;display:grid;place-items:center;font-style:normal}.qb-trust b,.qb-trust small{display:block}.qb-trust b{font-size:11px;line-height:1.2}.qb-trust small{font-size:9px;color:#64758a;margin-top:2px}.qb-commerce{padding:14px 0}.qb-commerce-grid{display:grid;grid-template-columns:minmax(0,3fr) minmax(280px,1fr);gap:14px;align-items:start}.qb-section-title{display:flex;justify-content:space-between;align-items:end;border-left:4px solid var(--red);padding-left:10px;margin-bottom:9px;gap:12px}.qb-section-title h2{font-size:19px;margin:0;line-height:1.2}.qb-section-title p{font-size:11px;margin:2px 0 0;color:#64758a}.qb-section-title>a{color:#0874e8;font-size:11px;white-space:nowrap}.qb-products{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px}.qb-product{border:1px solid #dbe4ed;border-radius:8px;overflow:hidden;background:#fff;min-width:0;display:flex;flex-direction:column;box-shadow:0 2px 8px rgba(12,48,84,.04)}.qb-pimg{display:flex;height:205px;padding:10px;align-items:center;justify-content:center;background:#fff;overflow:hidden}.qb-pimg img{width:100%;height:100%;object-fit:contain}.qb-pbody{padding:0 9px 9px;display:flex;flex-direction:column;flex:1;min-width:0}.qb-badge{align-self:flex-start;background:#08aa4d;color:#fff;border-radius:12px;padding:3px 7px;font-size:9px}.qb-product h3{font-size:12px;line-height:1.3;min-height:47px;margin:6px 0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.qb-price{color:#e60012;font-weight:800;font-size:16px;min-height:22px}.qb-price del{font-size:10px;color:#7b8795;font-weight:400}.qb-product ul{list-style:none;padding:0;margin:5px 0 7px;font-size:10px;line-height:1.5;color:#304b64}.qb-buy,.qb-compare{display:block;text-align:center;border-radius:5px;padding:8px;font-size:10px;font-weight:700;margin-top:auto}.qb-buy{background:var(--red);color:#fff!important}.qb-compare{color:#0874e8!important;padding-bottom:2px;margin-top:2px}.qb-aff{border:1px solid #dbe4ed;border-radius:8px;padding:10px;background:#fff;min-width:0}.qb-aff-card{background:#f5f9ff;border:1px solid #dce9f7;padding:16px;border-radius:8px;margin:10px 0}.qb-aff-card p{font-size:12px;line-height:1.5}.qb-aff-card a{display:block;background:#0874e8;color:#fff;padding:9px;text-align:center;border-radius:5px;font-size:11px}.qb-aff>small{font-size:9px;color:#718096}.qb-tools{padding:0 0 12px}.qb-toolgrid{display:grid;grid-template-columns:1.05fr 1.15fr 1fr;gap:10px}.qb-tool{min-height:138px;border-radius:9px;display:grid;grid-template-columns:minmax(0,1fr) 44%;overflow:hidden;padding-left:16px;align-items:center;min-width:0}.qb-tool>div{padding:12px 8px 12px 0;min-width:0}.qb-tool h2{font-size:17px;margin:0 0 4px;line-height:1.15}.qb-tool p,.qb-tool span{font-size:10px;display:block;margin:3px 0;line-height:1.35}.qb-tool b{display:inline-block;margin-top:7px;background:#0874e8;color:#fff;padding:7px 14px;border-radius:5px;font-size:10px}.qb-tool img{width:100%;height:138px;object-fit:cover}.qb-tool.buy{background:#fff3dc}.qb-tool.check{background:#eaf8f1}.qb-tool.service{background:#edf4fb}.qb-bottom{padding-bottom:16px}.qb-bottom-grid{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(230px,.75fr) minmax(230px,.75fr);gap:14px;align-items:start}.qb-bottom h2{font-size:17px;margin:0 0 8px}.qb-solutions{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px}.qb-solutions a{border:1px solid #dce5ee;border-radius:7px;overflow:hidden;text-align:center;background:#fff;min-width:0}.qb-solutions img{width:100%;height:84px;object-fit:cover}.qb-solutions b,.qb-solutions small{display:block;font-size:9px;padding:2px 4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.qb-knowledge a{display:grid;grid-template-columns:70px minmax(0,1fr);gap:7px;align-items:center;margin-bottom:7px;font-size:10px}.qb-knowledge span{width:70px;height:48px;background:#eef3f7;border-radius:4px;overflow:hidden}.qb-knowledge img{width:70px;height:48px;object-fit:cover}.qb-knowledge small{display:block;font-weight:400;color:#6c7a89;margin-top:3px}.qb-video-card{height:155px;display:block;position:relative;overflow:hidden;border-radius:7px;background:#e9eef3}.qb-video-card img{width:100%;height:100%;object-fit:cover}.qb-video-card>span{position:absolute;left:50%;top:44%;transform:translate(-50%,-50%);font-size:30px;color:red}.qb-video-card>b{position:absolute;left:10px;right:10px;bottom:9px;color:#fff;text-shadow:0 1px 3px #000;font-size:11px}.qb-footer{background:#073763;color:#fff;padding:22px 0}.qb-footer .qb-wrap{display:flex;justify-content:space-between;align-items:center;gap:20px}.qb-footer strong{font-size:18px}.qb-footer p{font-size:10px;margin:4px 0}.qb-footer nav{display:flex;gap:16px;font-size:11px}.qb-footer>span{font-size:10px}.qb-mobile{display:none}.qb-empty{padding:24px;background:#f5f7fa;border:1px dashed #ccd7e3;text-align:center;font-size:12px}.qb-production-page .site-header,.qb-production-page #site-navigation,.qb-production-page .site-footer,.qb-production-page .site-content,.qb-production-page #masthead,.qb-production-page #colophon{display:none!important}
@media(max-width:1180px){.qb-headrow{grid-template-columns:210px minmax(250px,1fr) 145px 92px}.qb-mini{display:none}.qb-nav a{padding:0 8px;font-size:11px}.qb-hero-grid{grid-template-columns:minmax(0,58%) minmax(320px,42%)}.qb-ai-features{display:none}.qb-commerce-grid{grid-template-columns:minmax(0,1fr) 280px}.qb-products{grid-template-columns:repeat(3,minmax(0,1fr))}.qb-products .qb-product:nth-child(4){display:none}.qb-trust .qb-wrap{grid-template-columns:repeat(3,1fr);row-gap:8px}.qb-bottom-grid{grid-template-columns:1fr 1fr}.qb-video{display:none}}
@media(max-width:900px){.qb-top nav{display:none}.qb-headrow{grid-template-columns:200px 1fr 120px}.qb-zalo{display:none}.qb-nav .qb-wrap{overflow-x:auto;scrollbar-width:none}.qb-nav .quote{display:none}.qb-hero-grid{grid-template-columns:1fr 40%}.qb-hero h1{font-size:38px}.qb-commerce-grid{grid-template-columns:1fr}.qb-products{grid-template-columns:repeat(3,1fr)}.qb-aff{margin-top:4px}.qb-toolgrid{grid-template-columns:1fr 1fr}.qb-tool.service{grid-column:1/-1}.qb-bottom-grid{grid-template-columns:1fr}.qb-video{display:block}.qb-solutions img{height:100px}}
@media(max-width:720px){body.qb-production-page{padding-bottom:62px}.qb-top,.qb-nav,.qb-phone,.qb-zalo{display:none}.qb-wrap{width:min(100% - 20px,var(--wrap))}.qb-headrow{min-height:60px;grid-template-columns:140px minmax(0,1fr);gap:8px}.qb-logo b{font-size:16px}.qb-logo small{font-size:8px}.qb-logomark{font-size:23px}.qb-search{height:38px}.qb-search input{font-size:11px}.qb-search button{width:42px}.qb-hero-grid{display:block}.qb-hero-copy{padding:18px 0 14px}.qb-hero h1{font-size:34px}.qb-hero p{font-size:13px}.qb-ai{max-width:none}.qb-ai button{padding:0 14px}.qb-hero-image{height:240px;min-height:0;margin:0 -10px}.qb-catgrid{grid-template-columns:1fr 1fr;gap:8px}.qb-cat:last-child{grid-column:1/-1}.qb-cat img{height:125px}.qb-trust .qb-wrap{grid-template-columns:1fr 1fr}.qb-products{grid-template-columns:1fr 1fr}.qb-products .qb-product:nth-child(4){display:flex}.qb-pimg{height:175px}.qb-toolgrid{grid-template-columns:1fr}.qb-tool.service{grid-column:auto}.qb-tool{min-height:130px}.qb-tool img{height:130px}.qb-solutions{grid-template-columns:repeat(2,1fr)}.qb-solutions img{height:110px}.qb-footer .qb-wrap{display:block}.qb-footer nav{margin:12px 0;flex-wrap:wrap}.qb-mobile{position:fixed;z-index:9999;bottom:0;left:0;right:0;height:62px;background:#fff;border-top:1px solid #dce5ee;display:grid;grid-template-columns:repeat(5,1fr);box-shadow:0 -3px 15px #0001}.qb-mobile a,.qb-mobile button{border:0;background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:19px;color:#173c65}.qb-mobile small{font-size:9px;margin-top:3px}.qb-mobile button{color:#0874e8}.qb-section-title h2{font-size:17px}}
@media(max-width:460px){.qb-products{grid-template-columns:1fr 1fr;gap:7px}.qb-pimg{height:150px}.qb-product h3{font-size:11px;min-height:44px}.qb-price{font-size:14px}.qb-product ul{display:none}.qb-cat h2{font-size:14px}.qb-cat p{font-size:10px}.qb-trust .qb-wrap{grid-template-columns:1fr}.qb-hero h1{font-size:31px}.qb-ai input{font-size:10px}.qb-ai button{font-size:12px;padding:0 10px}}
/* 1.1.0: Pixel Fix + Affiliate + link integration */
.qb-trust .qb-wrap{grid-template-columns:repeat(6,minmax(150px,1fr))!important;align-items:stretch!important}
.qb-trust .qb-wrap>div{min-width:0!important;width:auto!important;padding:5px 3px!important;overflow:visible!important}
.qb-trust .qb-wrap>div span{min-width:0!important;display:block!important}.qb-trust b{white-space:normal!important;word-break:normal!important;overflow-wrap:normal!important}.qb-trust small{white-space:normal!important}
.qb-aff-grid{display:grid;grid-template-columns:1fr;gap:10px}.qb-aff-product{display:grid;grid-template-columns:120px minmax(0,1fr);border:1px solid #dbe4ed;border-radius:8px;overflow:hidden;background:#fff;min-width:0}.qb-aff-image{height:135px;padding:8px;display:flex;align-items:center;justify-content:center;background:#f7f9fc}.qb-aff-image img{width:100%;height:100%;object-fit:contain}.qb-aff-placeholder{font-size:11px;color:#718096;text-align:center}.qb-aff-body{padding:9px;min-width:0}.qb-aff-body h3{font-size:12px;line-height:1.3;margin:5px 0}.qb-aff-badge{background:#ffefcc;color:#9a5a00;border-radius:12px;padding:3px 7px;font-size:9px}.qb-aff-price{font-size:16px;font-weight:800;color:#e60012}.qb-aff-price del{font-size:10px;color:#78889a;font-weight:400}.qb-aff-body p{font-size:10px;margin:4px 0}.qb-aff-body ul{list-style:none;margin:5px 0;padding:0;font-size:9px;line-height:1.45}.qb-aff-cta{display:block;background:#0874e8;color:#fff!important;text-align:center;padding:8px;border-radius:5px;font-size:10px;font-weight:700}.qb-aff-empty{padding:18px;background:#f5f9ff;border:1px dashed #b9d2ed;border-radius:8px;font-size:11px}.qb-mini-title{display:flex;align-items:center;justify-content:space-between;gap:10px}.qb-mini-title>a{font-size:10px;color:#0874e8;white-space:nowrap}
@media(max-width:1180px){.qb-trust .qb-wrap{grid-template-columns:repeat(3,minmax(180px,1fr))!important}}
@media(max-width:720px){.qb-trust .qb-wrap{grid-template-columns:repeat(2,minmax(0,1fr))!important}.qb-trust .qb-wrap>div{align-items:flex-start!important}.qb-aff-product{grid-template-columns:110px minmax(0,1fr)}}
@media(max-width:390px){.qb-trust .qb-wrap{grid-template-columns:1fr!important}}
/* 1.2.0 inner pages + cross-browser hardening */
.qb-production-page button,.qb-production-page input{font:inherit}.qb-production-page img{height:auto}.qb-headrow-inner{grid-template-columns:240px minmax(280px,1fr) 170px}.qb-inner{padding:22px 0 40px;background:#f7f9fc;min-height:60vh}.qb-breadcrumb{font-size:12px;color:#64758a;margin-bottom:12px}.qb-breadcrumb a{color:#0867df}.qb-inner-title{background:#fff;border:1px solid var(--line);border-radius:10px;padding:18px 20px;margin-bottom:16px}.qb-inner-title h1{margin:0 0 6px;font-size:28px}.qb-inner-title p{margin:0;color:var(--muted);font-size:13px}.qb-inner .qb-products{grid-template-columns:repeat(4,minmax(0,1fr))}.qb-article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.qb-article-card{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;min-width:0}.qb-article-img{height:190px;display:block;background:#eef3f7;overflow:hidden}.qb-article-img img{width:100%;height:100%;object-fit:cover}.qb-article-card>div{padding:14px}.qb-article-card small{color:var(--muted)}.qb-article-card h2{font-size:17px;line-height:1.3;margin:6px 0}.qb-article-card p{font-size:12px;line-height:1.55;color:#52677d}.qb-read{font-size:12px;font-weight:700;color:#0867df!important}.qb-pagination{margin-top:20px}.qb-pagination .nav-links{display:flex;gap:6px;flex-wrap:wrap}.qb-pagination .page-numbers{background:#fff;border:1px solid var(--line);padding:7px 10px;border-radius:5px}.qb-pagination .current{background:#0867df;color:#fff}.qb-production-page *{min-width:0}.qb-production-page a,.qb-production-page button{-webkit-tap-highlight-color:transparent}.qb-production-page .qb-search input{-webkit-appearance:none;appearance:none}.qb-production-page img{image-rendering:auto}
@supports not (aspect-ratio:1/1){.qb-pimg,.qb-aff-image,.qb-article-img{position:relative}}
@media(max-width:1000px){.qb-headrow-inner{grid-template-columns:210px 1fr}.qb-headrow-inner .qb-phone{display:none}.qb-inner .qb-products{grid-template-columns:repeat(3,minmax(0,1fr))}.qb-article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:720px){.qb-headrow-inner{grid-template-columns:140px 1fr}.qb-inner{padding-top:14px}.qb-inner-title h1{font-size:22px}.qb-inner .qb-products{grid-template-columns:repeat(2,minmax(0,1fr))}.qb-article-grid{grid-template-columns:1fr}.qb-article-img{height:210px}}