:root{--navy:#004760;--teal:#24758d;--orange:#fc6715;--bg:#f5f7f8;--card:#fff;--line:#dbe4e7;--text:#17303b;--muted:#60737b;--soft:#eef4f5;--ok:#287a50;--shadow:0 8px 24px rgba(15,45,60,.08);--radius:10px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.5 Inter,Segoe UI,Arial,sans-serif}button,input,select,textarea{font:inherit}button{cursor:pointer}.container{max-width:1280px;margin:auto;padding:0 20px}.top{background:#fff;color:var(--navy);border-bottom:1px solid var(--line)}.topin{min-height:94px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;min-width:0}.brand-logo{display:block;width:330px;height:auto;max-height:82px;object-fit:contain;object-position:left center}.contact{display:inline-flex;align-items:center;gap:8px;color:var(--navy);background:#eef8f1;text-decoration:none;border:1px solid #cfe8d6;padding:8px 12px;border-radius:8px;font-weight:700;white-space:nowrap;transition:background .15s ease,border-color .15s ease}.contact:hover{background:#e3f4e8;border-color:#b9dcc3}.contact img{width:20px;height:20px;display:block;flex:0 0 auto}.hero{background:#fff;border-bottom:1px solid var(--line)}.hero-in{padding:28px 20px}.hero h2{font-size:25px;margin:0 0 6px}.hero p{margin:0 0 18px;color:var(--muted)}.search{position:relative;max-width:850px}.search input{width:100%;height:48px;border:1px solid #bfcfd4;border-radius:8px;padding:0 48px 0 15px;font-size:15px;box-shadow:0 2px 5px rgba(0,0,0,.03)}.search span{position:absolute;right:15px;top:12px;color:#70838a;font-size:20px}.layout{display:grid;grid-template-columns:245px 1fr;gap:20px;padding:22px 0 50px}.sidebar{background:#fff;border:1px solid var(--line);border-radius:var(--radius);align-self:start;position:sticky;top:15px;overflow:hidden}.sidehead{font-weight:700;padding:14px;border-bottom:1px solid var(--line)}.cats{padding:8px}.cat{display:flex;justify-content:space-between;gap:8px;width:100%;text-align:left;border:0;background:none;padding:9px 8px;border-radius:6px;color:var(--text)}.cat:hover,.cat.active{background:var(--soft);color:var(--teal);font-weight:600}.count{color:#829198;font-size:12px}.mainbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:13px}.results{color:var(--muted)}.controls{display:flex;gap:8px}.controls select,.btn{border:1px solid var(--line);background:#fff;border-radius:7px;padding:8px 10px;color:var(--text)}.btn.primary{background:var(--teal);border-color:var(--teal);color:#fff}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.product{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;min-width:0}.pic{height:155px;background:linear-gradient(135deg,#edf3f4,#dce8eb);display:grid;place-items:center;position:relative}.pic img{width:100%;height:100%;object-fit:contain;background:#fff}.placeholder{font-size:34px;font-weight:800;color:#8aa1a8;letter-spacing:1px}.badge{position:absolute;left:10px;top:10px;background:#fff;border:1px solid var(--line);border-radius:5px;padding:3px 6px;font-size:10px;color:var(--muted)}.pbody{padding:13px;display:flex;flex-direction:column;gap:6px;flex:1}.ptype{font-size:11px;text-transform:uppercase;color:var(--teal);font-weight:700;letter-spacing:.04em}.pname{font-weight:700;font-size:15px;line-height:1.3}.meta{color:var(--muted);font-size:12px}.spec{font-size:12px;color:#435b64;background:#f7f9fa;border-radius:6px;padding:7px;margin-top:3px;max-height:58px;overflow:hidden}.actions{display:flex;gap:7px;margin-top:auto;padding-top:8px}.actions button{flex:1}.empty{background:#fff;border:1px dashed #bcccd1;border-radius:10px;padding:45px;text-align:center;color:var(--muted)}.modalwrap{position:fixed;inset:0;background:rgba(9,28,37,.55);display:none;align-items:center;justify-content:center;padding:20px;z-index:20}.modal{background:#fff;border-radius:12px;max-width:850px;width:100%;max-height:90vh;overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.25)}.modalhead{display:flex;justify-content:space-between;gap:12px;padding:17px 20px;border-bottom:1px solid var(--line)}.close{border:0;background:none;font-size:24px;color:var(--muted)}.detail{display:grid;grid-template-columns:300px 1fr;gap:24px;padding:20px}.detailpic{height:270px;background:#f2f6f7;border-radius:9px;display:grid;place-items:center;overflow:hidden}.detailpic img{width:100%;height:100%;object-fit:contain}.detail h3{font-size:23px;line-height:1.25;margin:0 0 7px}.chips{display:flex;gap:6px;flex-wrap:wrap;margin:10px 0}.chip{background:var(--soft);color:var(--teal);padding:4px 7px;border-radius:5px;font-size:11px}.attrs{border:1px solid var(--line);border-radius:8px;overflow:hidden;margin-top:14px}.attr{display:grid;grid-template-columns:150px 1fr;border-bottom:1px solid var(--line)}.attr:last-child{border:0}.attr b,.attr span{padding:8px 10px}.attr b{background:#f7f9fa}.modalfoot{padding:15px 20px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:8px}.admin{display:none}.adminbar{background:#fff4ed;border-bottom:1px solid #f0d1bd;padding:9px 0}.adminin{display:flex;align-items:center;justify-content:space-between;gap:10px}.admin small{color:#75441f}.formgrid{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:20px}.formgrid label{font-size:12px;font-weight:700}.formgrid input,.formgrid textarea,.formgrid select{width:100%;margin-top:4px;border:1px solid var(--line);border-radius:6px;padding:8px}.formgrid textarea{min-height:100px;resize:vertical}.full{grid-column:1/-1}.footer{background:var(--navy);color:#b9cbd1;padding:25px 0}.footer strong{color:#fff}.footer-tagline{display:flex;flex-direction:column;gap:1px}.footer-contact{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:10px;font-size:13px}.footer-contact a{display:inline-flex;align-items:center;gap:6px;color:#d8e5e8;text-decoration:none}.footer-contact a:hover{text-decoration:underline}.footer-contact img{width:14px;height:14px;filter:brightness(0) invert(1);opacity:.9}.footer-separator{color:#78929a}.footer-location{flex-basis:100%;margin-top:2px}.copyright{position:fixed;bottom:20px;right:20px;background:var(--navy);color:#fff;padding:10px 14px;border-radius:7px;display:none;z-index:50}.mobilefilter{display:none}@media(max-width:980px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.layout{grid-template-columns:210px 1fr}}@media(max-width:700px){.container{padding:0 14px}.topin{min-height:70px}.brand-logo{width:255px;max-height:62px}.contact{display:inline-flex;padding:7px 9px;font-size:12px}.contact img{width:18px;height:18px}.layout{display:block}.sidebar{display:none}.mobilefilter{display:block}.grid{grid-template-columns:1fr}.mainbar{align-items:flex-start;flex-direction:column}.detail{grid-template-columns:1fr}.detailpic{height:210px}.formgrid{grid-template-columns:1fr}.full{grid-column:auto}}

/* v4 foundation: promotion slot */
.promo-slot:empty{display:none}.promo-slot{background:#fff;border-bottom:1px solid var(--line)}.promo-slot .promo{max-width:1280px;margin:0 auto;padding:12px 20px}.promo-card{border:1px solid var(--line);border-radius:10px;padding:12px 15px;background:#fff7f1;display:flex;gap:12px;align-items:center}.promo-card img{width:120px;height:60px;object-fit:cover;border-radius:6px}.promo-card strong{color:var(--navy)}

.spec-chips{display:flex;flex-wrap:wrap;gap:5px;margin-top:8px}.spec-chip{font-size:.72rem;border:1px solid #dbe3e8;border-radius:999px;padding:4px 7px;background:#f8fafb}.structured{margin-top:18px}.structured h4,.source-tech h4,.spec-editor h4{margin:0 0 9px}.spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.spec-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.spec-form-grid label{display:flex;flex-direction:column;gap:4px}.spec-form-grid input{width:100%}.hint{font-size:.8rem;color:#66757f;margin-top:-4px}@media(max-width:700px){.spec-grid,.spec-form-grid{grid-template-columns:1fr}}
.techfilterbar{margin:0 0 10px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px;display:flex;align-items:center;justify-content:space-between;gap:12px}.techfilterbar>div{display:flex;align-items:center;gap:10px}.techfilterbar b{color:var(--navy)}#filterSummary{font-size:12px;color:var(--orange);font-weight:700}.spec-filters{background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:16px;box-shadow:var(--shadow)}.filter-head{padding:12px 14px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px}.filter-head small{display:block;color:var(--muted);font-weight:400;margin-top:2px}.spec-family{padding:12px 14px;border-bottom:1px solid var(--line)}.spec-family:last-child{border-bottom:0}.spec-family-title{text-transform:capitalize;font-size:12px;font-weight:800;color:var(--teal);margin-bottom:10px}.facet{border:0;margin:0 0 12px;padding:0}.facet:last-child{margin-bottom:0}.facet legend{font-weight:700;font-size:13px;padding:0;margin-bottom:6px;color:var(--text)}.facet legend span{font-size:11px;color:var(--muted);font-weight:400}.facet-options{display:flex;flex-wrap:wrap;gap:6px 14px}.check{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:12px;max-width:280px}.check input{accent-color:var(--orange)}.facet-note,.filter-empty{font-size:11px;color:var(--muted)}.filter-empty{padding:14px}.spec-family-title::first-letter{text-transform:uppercase}@media(max-width:760px){.techfilterbar{align-items:flex-start}.filter-head{align-items:flex-start}.facet-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.check{max-width:none}}
.range-available{font-size:11px;color:var(--muted);margin:-1px 0 8px}.range-inputs{display:grid;grid-template-columns:1fr 1fr;gap:8px}.range-inputs label{font-size:11px;color:var(--muted);font-weight:600}.range-inputs input{display:block;width:100%;margin-top:4px;border:1px solid var(--line);border-radius:6px;padding:7px 8px;background:#fff;color:var(--text)}.range-inputs input:focus{outline:2px solid rgba(36,117,141,.18);border-color:var(--teal)}.range-facet .facet-note{display:block;margin-top:7px;line-height:1.35}
@media(max-width:700px){.range-inputs{grid-template-columns:1fr}}

.compare-bar{display:none;background:var(--navy);color:#fff;position:sticky;top:0;z-index:15;box-shadow:0 4px 16px rgba(0,0,0,.12)}
.compare-bar-in{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:9px;padding-bottom:9px}.compare-bar b{color:#fff}.compare-bar span{color:#d6e6ea;font-size:12px;margin-left:5px}.compare-items{display:flex;gap:6px;flex-wrap:wrap;margin-top:6px}.compare-item{border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.08);color:#fff;border-radius:999px;padding:5px 8px;display:inline-flex;align-items:center;gap:6px;max-width:360px}.compare-item span{margin:0;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.compare-item b{font-size:15px;font-weight:400}.compare-actions{display:flex;gap:8px;flex-shrink:0}.compare-actions .btn{background:#fff;color:var(--navy)}.compare-actions .btn.primary{background:var(--orange);border-color:var(--orange);color:#fff}.compare-actions .btn:disabled{opacity:.5;cursor:not-allowed}
.product.compare-selected{border-color:var(--orange);box-shadow:0 0 0 2px rgba(252,103,21,.12)}.selected-btn{background:#fff4ed!important;border-color:#f4b48d!important;color:#b94a11!important}
.compare-modal{max-width:1180px}.modal-subtitle{font-size:12px;color:var(--muted);margin-top:2px}.compare-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 20px;border-bottom:1px solid var(--line);background:#fafcfc}.check-inline{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--muted)}.check-inline input{accent-color:var(--orange)}.compare-content{padding:0 20px 20px}.compare-scroll{overflow:auto;max-height:62vh;border:1px solid var(--line);border-radius:8px}.compare-table{width:100%;min-width:760px;border-collapse:collapse;font-size:12px}.compare-table th,.compare-table td{border-bottom:1px solid var(--line);padding:10px;vertical-align:top;text-align:left}.compare-table thead th{position:sticky;top:0;background:#fff;z-index:2}.compare-table thead th:first-child{min-width:170px}.compare-table tbody th{background:#f7f9fa;min-width:170px;position:sticky;left:0;z-index:1}.compare-table tr.diff-row td,.compare-table tr.diff-row th{background:#fff9f4}.compare-table .diff-tag{display:inline-block;margin-left:6px;font-size:9px;color:#b94a11;background:#fff0e6;border:1px solid #f6c5a5;padding:2px 4px;border-radius:4px}.compare-head{display:flex;gap:8px;align-items:center;min-width:180px}.compare-head img,.compare-mini-placeholder{width:42px;height:42px;object-fit:contain;border-radius:5px;border:1px solid var(--line);background:#f2f6f7;display:grid;place-items:center;flex:0 0 auto}.compare-head div:nth-child(2){min-width:0}.compare-head b{display:block;color:var(--text);line-height:1.25}.compare-head small{display:block;color:var(--muted);font-size:10px;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.na{color:#a4b0b5}.compare-table tbody tr:last-child th,.compare-table tbody tr:last-child td{border-bottom:0}
@media(max-width:700px){.compare-bar-in{align-items:flex-start;flex-direction:column}.compare-actions{width:100%}.compare-actions .btn{flex:1}.compare-content{padding:0 12px 12px}.compare-toolbar{padding:10px 12px}.compare-head{min-width:160px}}
.api-status{font-weight:700}.api-status.online{color:#1b7f45}.api-status.offline{color:#a15c00}

/* v18 advertising display */
.promo-slot{background:#fff;border-bottom:1px solid var(--line)}.promo-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.promo-link{text-decoration:none;color:inherit}.promo-card{min-height:90px;border:1px solid var(--line);background:#fff7f1;border-radius:10px;padding:10px 12px;display:flex;align-items:center;gap:12px;transition:transform .12s ease,box-shadow .12s ease}.promo-link:hover .promo-card{transform:translateY(-1px);box-shadow:0 6px 18px rgba(0,0,0,.06)}.promo-card img{width:112px;height:68px;object-fit:cover;border-radius:7px;border:1px solid #efd4c2;background:#fff}.promo-copy{min-width:0;display:flex;flex-direction:column;gap:3px}.promo-label{font-size:9px;text-transform:uppercase;letter-spacing:.08em;color:#b94a11;font-weight:800}.promo-copy strong{color:var(--navy);font-size:14px;line-height:1.25}.promo-copy p{margin:0;color:var(--muted);font-size:11px;line-height:1.35}.promo-cta{font-size:11px;color:var(--orange);font-weight:700;margin-top:2px}@media(max-width:900px){.promo-grid{grid-template-columns:1fr 1fr}}@media(max-width:600px){.promo-grid{grid-template-columns:1fr}.promo-card{min-height:78px}.promo-card img{width:92px;height:58px}}


/* v19 UI refinement: reduce homepage density and make filters/search friendlier */
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.sidehead{display:flex;align-items:center;justify-content:space-between;gap:8px}
.icon-btn{border:1px solid var(--line);background:#fff;border-radius:6px;min-width:30px;height:30px;line-height:1;color:var(--muted);font-weight:800;cursor:pointer}
.sidebar.collapsed #cats{display:none}
.sidebar.collapsed{min-height:0}
.filter-field{display:flex;align-items:center}
.filter-input,.filter-field input{border:1px solid var(--line);background:#fff;border-radius:7px;padding:8px 10px;color:var(--text);min-width:150px;max-width:190px;font:inherit}
.mobilefilter .filter-input{width:100%;max-width:none;box-sizing:border-box;margin-bottom:12px}
.filter-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:14px;overflow:hidden}
.filter-panel summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;font-size:14px}
.filter-panel summary::-webkit-details-marker{display:none}
.filter-panel summary::after{content:'+';font-size:18px;font-weight:800;color:var(--muted)}
.filter-panel[open] summary::after{content:'−'}
.summary-hint{font-size:12px;color:var(--muted);font-weight:400;margin-left:10px}
.filter-panel-body{border-top:1px solid var(--line);padding:12px 14px 14px}
.filter-panel-actions{display:flex;justify-content:flex-end;margin-bottom:10px}
@media (max-width:900px){.layout{grid-template-columns:1fr}.sidebar{position:static}.controls{flex-wrap:wrap}.filter-field input{max-width:none;min-width:120px}.summary-hint{display:none}}

/* v19.1 catalogue pagination */
.page-size{display:flex;align-items:center;gap:5px;color:var(--muted);font-size:12px;white-space:nowrap}
.page-size select{border:1px solid var(--line);background:#fff;border-radius:7px;padding:8px 9px;color:var(--text)}
.pagination{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;padding:10px 0 4px}
.pagination-meta{color:var(--muted);font-size:12px}
.pagination-controls{display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.page-btn{border:1px solid var(--line);background:#fff;color:var(--text);border-radius:7px;min-width:36px;padding:7px 10px;font-size:12px}
.page-btn:hover:not(:disabled){border-color:var(--teal);color:var(--teal)}
.page-btn.active{background:var(--teal);border-color:var(--teal);color:#fff;font-weight:700}
.page-btn:disabled{opacity:.45;cursor:not-allowed}
@media(max-width:700px){.pagination{align-items:flex-start;flex-direction:column}.pagination-controls{justify-content:flex-start}.page-size{width:100%;justify-content:flex-start}}


/* v20.1.3 public refinement */
.hero-in{display:flex;flex-direction:column;align-items:flex-start}
.search{max-width:760px;width:100%;margin:0}
.layout{grid-template-columns:245px minmax(0,1fr);align-items:start}
.layout.sidebar-collapsed{grid-template-columns:52px minmax(0,1fr)}
.sidebar{transition:width .18s ease}
.sidehead-label{display:inline-block}
.sidebar.collapsed{width:52px}
.sidebar.collapsed .sidehead{justify-content:center;padding:8px}
.sidebar.collapsed .sidehead-label{display:none}
.sidebar.collapsed .icon-btn{width:34px;min-width:34px;height:34px;padding:0;border-color:transparent;font-size:18px}
.icon-btn{font-size:18px}
.footer .copyright{margin-top:12px;padding-top:10px;border-top:1px solid rgba(255,255,255,.12);font-size:12px;color:#9db4bc}
@media(max-width:980px){.layout{grid-template-columns:210px minmax(0,1fr)}.layout.sidebar-collapsed{grid-template-columns:52px minmax(0,1fr)}}
@media(max-width:700px){.layout,.layout.sidebar-collapsed{display:block}.sidebar.collapsed{width:auto}}