@layer components{.product-center-layout,.product-center-layout *{-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}@supports (-moz-osx-font-smoothing:auto){.product-center-layout *{-moz-osx-font-smoothing:grayscale}}.product-center-layout{display:flex;max-width:1400px;margin:0 auto;padding:16px 24px 40px;gap:20px;background:var(--bg-tertiary);font-family:var(--font-sans)}.product-nav{flex-shrink:0}.product-mobile-topbar{display:none;position:sticky;top:60px;z-index:100;background:var(--bg-primary);border-bottom:1px solid var(--border-color);padding:8px 12px;margin:0 -16px 12px;align-items:center;gap:8px}.drawer-toggle{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border:1px solid var(--border-dark);border-radius:var(--radius-md);background:var(--bg-primary);color:var(--text-secondary);cursor:pointer;transition:all .15s;flex-shrink:0}.drawer-toggle:hover{background:var(--bg-accent);border-color:var(--accent);color:var(--accent)}.mobile-topbar-title{font-size:var(--font-size-xs);font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar{width:240px;background:var(--bg-primary);border-radius:var(--radius-lg);overflow:hidden;align-self:flex-start;position:sticky;top:80px;box-shadow:var(--shadow-sm);max-height:calc(100vh - 96px);overflow-y:auto;scrollbar-width:thin;scrollbar-color:var(--border-color) transparent;border:1px solid var(--border-color)}.sidebar::-webkit-scrollbar{width:4px}.sidebar::-webkit-scrollbar-track{background:0 0}.sidebar::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.sidebar-close{display:none;align-items:center;justify-content:center;width:28px;height:28px;border:none;border-radius:6px;background:var(--bg-tertiary);color:var(--text-secondary);cursor:pointer;transition:all .15s}.sidebar-close:hover{background:var(--border-color);color:var(--text-primary)}.sidebar-header{padding:16px 18px;background:linear-gradient(135deg,var(--primary) 0,var(--primary-light) 100%);display:flex;justify-content:space-between;align-items:center}.sidebar-header h2{color:var(--text-inverse);font-size:var(--font-size-sm);font-weight:700;margin:0;letter-spacing:var(--letter-spacing-wide);text-transform:uppercase;position:relative;z-index:1}.sidebar-menu{padding:4px 0}.category-tree{list-style:none;padding:0;margin:0}.category-tree li{position:relative}.category-tree .parent{cursor:pointer}.parent-row{display:flex;align-items:center}.expand-icon{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;color:var(--text-light);font-size:10px;transition:transform .2s,color .2s;flex-shrink:0}.parent:hover .expand-icon{color:var(--accent)}.group-color-bar{display:inline-block;width:3px;height:16px;border-radius:2px;margin-right:6px;flex-shrink:0;transition:height .2s,box-shadow .2s}.parent:hover .group-color-bar{height:20px;box-shadow:0 0 8px currentColor}.category-link{display:flex;align-items:center;flex:1;padding:8px 14px;color:var(--text-secondary);text-decoration:none;font-size:var(--font-size-xs);font-weight:500;letter-spacing:var(--letter-spacing-normal);transition:all .15s;position:relative;border-left:3px solid transparent;gap:8px}.category-link:hover{background:var(--bg-accent);color:var(--accent);border-left-color:var(--accent)}.category-link.active{background:var(--bg-accent);color:var(--accent);border-left:3px solid var(--accent);font-weight:600}.category-link svg{flex-shrink:0;opacity:.5}.category-link.active svg,.category-link:hover svg{opacity:1}.group-count{font-size:10px;font-weight:700;color:var(--text-secondary);background:var(--bg-tertiary);padding:2px 8px;border-radius:10px;margin-left:auto;margin-right:4px;flex-shrink:0;transition:all .15s;letter-spacing:var(--letter-spacing-normal)}.parent:hover .group-count{background:var(--accent-glow);color:var(--accent)}.submenu{list-style:none;padding:0;margin:0;display:none;background:var(--bg-secondary)}.submenu.expanded{display:block}.submenu li a{display:flex;align-items:center;justify-content:space-between;padding:7px 14px 7px 38px;color:var(--text-tertiary);text-decoration:none;font-size:var(--font-size-xs);transition:all .15s;border-left:3px solid transparent}.submenu li a:hover{background:var(--bg-accent);color:var(--accent);border-left-color:var(--accent-light)}.submenu li a.active{color:var(--accent);border-left-color:var(--accent);background:var(--bg-accent);font-weight:600}.cat-count{font-size:10px;font-weight:600;color:var(--text-light);background:var(--bg-tertiary);padding:1px 6px;border-radius:6px;flex-shrink:0;letter-spacing:var(--letter-spacing-normal)}.submenu li a.active .cat-count,.submenu li a:hover .cat-count{background:var(--accent-glow);color:var(--accent)}.sidebar-trust{padding:10px 14px;border-top:1px solid var(--border-light);margin-top:4px}.sidebar-trust-badges{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap}.sidebar-trust-badge{font-size:10px;font-weight:700;color:var(--text-light);letter-spacing:var(--letter-spacing-wider);text-transform:uppercase;padding:3px 8px;border:1px solid var(--border-color);border-radius:4px;background:var(--bg-secondary);font-feature-settings:'kern' 1}.sidebar-cta{padding:10px 14px;border-top:1px solid var(--border-light)}.cta-button{display:flex;align-items:center;justify-content:center;gap:8px;padding:10px;background:linear-gradient(135deg,var(--accent) 0,var(--accent-hover) 100%);border-radius:var(--radius-md);text-decoration:none;color:var(--text-inverse);font-weight:600;font-size:var(--font-size-xs);transition:all .2s;box-shadow:0 2px 8px var(--accent-glow)}.cta-button:hover{box-shadow:0 4px 16px var(--accent-glow);transform:translateY(-1px)}.cta-icon{font-size:18px}.sidebar-backdrop{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);z-index:1199;opacity:0;pointer-events:none;transition:opacity .25s}.sidebar-backdrop.active{opacity:1;pointer-events:auto}.seo-links{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.seo-links a{margin-right:12px}.main-content{flex:1;min-width:0;background:var(--bg-primary);border-radius:var(--radius-lg);padding:16px 20px 24px;box-shadow:var(--shadow-sm);border:1px solid var(--border-color)}.breadcrumb{display:flex;align-items:center;gap:6px;padding:0 0 8px;color:var(--text-light);font-size:var(--font-size-xs);flex-wrap:wrap;border-bottom:1px solid var(--border-light);margin-bottom:14px}.breadcrumb a{color:var(--text-tertiary);text-decoration:none;transition:color .15s;font-weight:500}.breadcrumb a:hover{color:var(--accent);text-decoration:underline}.breadcrumb .separator{color:var(--border-dark);font-size:10px;margin:0 2px}.category-hero{margin-bottom:14px;padding:20px 24px;background:linear-gradient(135deg,var(--primary) 0,var(--primary-light) 60%,var(--secondary) 100%);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);display:flex;gap:24px;align-items:center;position:relative;overflow:hidden;border:none}.category-hero-info{flex:1;min-width:0;position:relative;z-index:1}.category-hero-tag{display:inline-block;padding:3px 10px;border-radius:var(--radius-full);font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:var(--letter-spacing-wider);margin-bottom:8px;background:rgba(255,255,255,.1);color:rgba(255,255,255,.85);border:1px solid rgba(255,255,255,.08);font-feature-settings:'kern' 1}.category-hero-title{font-size:var(--font-size-xl);font-weight:700;color:var(--text-inverse);margin:0 0 6px;line-height:var(--line-height-tight);letter-spacing:var(--letter-spacing-tight);font-feature-settings:'kern' 1,'liga' 1}.category-hero-desc{color:rgba(255,255,255,.68);font-size:var(--font-size-xs);margin:0 0 10px;line-height:var(--line-height-base);max-width:480px}.category-hero-features{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:8px}.category-hero-features li{font-size:var(--font-size-xs);color:rgba(255,255,255,.8);padding:4px 12px;background:rgba(255,255,255,.07);border-radius:var(--radius-full);display:inline-flex;align-items:center;gap:5px;border:1px solid rgba(255,255,255,.05)}.category-hero-features li::before{content:'\2713';color:#86efac;font-weight:700;font-size:10px}.category-hero-image{width:140px;min-width:140px;height:100px;border-radius:var(--radius-md);overflow:hidden;background:rgba(255,255,255,.04);display:flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.06);position:relative;z-index:1;box-shadow:0 8px 24px rgba(0,0,0,.15)}.category-hero-image img{max-width:80%;max-height:90px;object-fit:contain;filter:drop-shadow(0 4px 12px rgba(0,0,0,.2))}.category-header{margin-bottom:14px;padding:28px 32px;background:linear-gradient(135deg,var(--primary) 0,var(--primary-light) 60%,var(--secondary) 100%);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);position:relative;overflow:hidden;border:none}.category-header::before{content:'';position:absolute;top:-40px;right:-30px;width:160px;height:160px;background:rgba(255,255,255,.06);border-radius:50%;pointer-events:none}.category-header::after{content:'';position:absolute;bottom:-20px;right:80px;width:80px;height:80px;background:rgba(255,255,255,.04);border-radius:50%;pointer-events:none}.category-header-info{position:relative;z-index:1}.category-header-info h1,.category-header-info h2{font-size:var(--font-size-2xl);font-weight:800;color:var(--text-inverse);margin:0 0 8px;letter-spacing:-.02em;font-feature-settings:'kern' 1,'liga' 1}.category-header-info p{color:rgba(255,255,255,.75);font-size:var(--font-size-sm);margin:0;line-height:var(--line-height-relaxed);max-width:640px}.subcategory-tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px;padding:8px 10px;background:var(--bg-secondary);border-radius:var(--radius-md);border:1px solid var(--border-color)}.subcategory-tabs:empty{display:none}.subcategory-tab{display:inline-block;padding:6px 16px;background:var(--bg-primary);color:var(--text-secondary);text-decoration:none;font-size:var(--font-size-xs);font-weight:500;letter-spacing:var(--letter-spacing-normal);border-radius:var(--radius-sm);transition:all .15s;border:1px solid transparent}.subcategory-tab:hover{color:var(--accent);border-color:var(--accent-glow);background:var(--bg-primary)}.subcategory-tab.active{background:var(--accent);color:var(--text-inverse);border-color:var(--accent);box-shadow:0 2px 8px var(--accent-glow)}.smart-filter-bar{display:flex;align-items:flex-start;gap:12px;margin-bottom:14px;padding:12px 14px;background:var(--bg-primary);border-radius:var(--radius-md);flex-wrap:wrap;border:1px solid var(--border-color);box-shadow:var(--shadow-xs)}.smart-filter-inner{flex:1;display:flex;flex-wrap:wrap;gap:8px;min-width:0}.filter-group{display:flex;align-items:center;gap:5px;flex-wrap:wrap}.filter-label{font-size:10px;font-weight:700;color:var(--text-light);text-transform:uppercase;letter-spacing:var(--letter-spacing-wider);white-space:nowrap;margin-right:2px}.filter-btn{padding:5px 14px;border:1px solid var(--border-color);border-radius:var(--radius-sm);background:var(--bg-primary);color:var(--text-secondary);font-size:var(--font-size-xs);font-weight:500;cursor:pointer;transition:all .15s;white-space:nowrap;font-family:var(--font-sans)}.filter-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--bg-accent)}.filter-btn.active{background:var(--accent);color:var(--text-inverse);border-color:var(--accent);box-shadow:0 1px 4px var(--accent-glow)}.filter-reset-btn{padding:5px 12px;border:1px solid var(--border-color);border-radius:var(--radius-sm);background:var(--bg-secondary);color:var(--text-tertiary);font-size:var(--font-size-xs);cursor:pointer;transition:all .15s;white-space:nowrap;font-family:var(--font-sans)}.filter-reset-btn:hover{border-color:var(--error);color:var(--error);background:var(--error-bg)}.product-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;padding:10px 14px;background:var(--bg-primary);border-radius:var(--radius-md);border:1px solid var(--border-color);box-shadow:var(--shadow-xs)}.product-count{font-size:var(--font-size-xs);color:var(--text-tertiary);letter-spacing:var(--letter-spacing-normal)}.product-count strong{color:var(--accent);font-size:var(--font-size-sm);font-weight:700}.product-card-view{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;align-items:start}.product-card{background:var(--bg-primary);border-radius:var(--radius-md);border:1px solid var(--border-color);overflow:hidden;transition:all .2s ease;display:flex;flex-direction:column;text-decoration:none;color:inherit;position:relative;box-shadow:var(--shadow-xs)}.product-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--group-color,var(--accent));opacity:0;transition:opacity .2s}.product-card:hover::before{opacity:1}.product-card:hover{border-color:var(--group-color,var(--accent));box-shadow:var(--shadow-md);transform:translateY(-2px)}.product-card-image{height:130px;background:linear-gradient(180deg,var(--bg-secondary) 0,var(--bg-primary) 100%);display:flex;align-items:center;justify-content:center;padding:16px;position:relative;overflow:hidden}.product-card-image img{max-width:55%;max-height:90px;object-fit:contain;transition:transform .3s ease;filter:drop-shadow(0 1px 4px rgba(0,0,0,.06))}.product-card:hover .product-card-image img{transform:scale(1.05)}.product-card-badge{position:absolute;top:8px;left:8px;font-size:10px;font-weight:700;padding:3px 10px;border-radius:var(--radius-sm);z-index:1;letter-spacing:var(--letter-spacing-wider);text-transform:uppercase;font-feature-settings:'kern' 1}.tag-hot{background:var(--error);color:var(--text-inverse)}.tag-new{background:var(--accent);color:var(--text-inverse)}.tag-default{background:var(--text-tertiary);color:var(--text-inverse)}.product-card-body{padding:12px 14px 14px;display:flex;flex-direction:column;gap:6px}.product-card-name{font-size:var(--font-size-xs);font-weight:600;color:var(--text-primary);margin:0;line-height:var(--line-height-snug);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;letter-spacing:var(--letter-spacing-tight);font-feature-settings:'kern' 1,'liga' 1}.product-card-specs{display:flex;flex-wrap:wrap;gap:5px}.product-card-spec{font-size:var(--font-size-xs);padding:3px 8px;background:var(--bg-tertiary);color:var(--text-secondary);border-radius:var(--radius-sm);font-weight:500;white-space:nowrap}.product-card-models{font-size:var(--font-size-xs);color:var(--text-light);display:flex;align-items:center;gap:5px}.product-card-models .model-count{background:var(--group-color-light,var(--bg-accent));color:var(--group-color,var(--accent));padding:2px 10px;border-radius:var(--radius-full);font-weight:700;font-size:10px}.product-card-cert{display:flex;gap:5px;flex-wrap:wrap}.cert-badge{font-size:10px;padding:3px 8px;border-radius:var(--radius-sm);font-weight:700;border:1px solid var(--border-color);background:var(--bg-secondary);color:var(--text-light);letter-spacing:var(--letter-spacing-normal);font-feature-settings:'kern' 1}.cert-yes{border-color:var(--accent-glow);color:var(--accent);background:var(--bg-accent)}.cert-no{opacity:.4}.cert-ce{border-color:var(--accent-glow);color:var(--accent);background:var(--bg-accent)}.cert-rohs{border-color:#86efac;color:#166534;background:#f0fdf4}.cert-fcc{border-color:#fcd34d;color:#92400e;background:#fffbeb}.cert-ul{border-color:#fca5a5;color:#991b1b;background:#fef2f2}.cert-cb{border-color:var(--accent-glow);color:var(--primary-light);background:var(--bg-accent)}.product-card-actions{display:flex;gap:6px;margin-top:4px;padding-top:8px;border-top:1px solid var(--border-light)}.product-card-actions .btn-add-quote,.product-card-actions .btn-detail,.product-card-actions .btn-inquiry{display:inline-flex;align-items:center;justify-content:center;gap:4px;padding:6px 12px;border-radius:var(--radius-sm);font-size:11.5px;font-weight:600;cursor:pointer;border:1px solid transparent;text-decoration:none;transition:all .15s ease;white-space:nowrap;font-family:var(--font-sans)}.product-card-actions .btn-detail{background:var(--accent);color:var(--text-inverse);flex:1}.product-card-actions .btn-detail:hover{background:var(--accent-hover)}.product-card-actions .btn-inquiry{background:0 0;color:var(--accent);border:1px solid var(--accent);flex:1}.product-card-actions .btn-inquiry:hover{background:var(--bg-accent)}.product-card-actions .btn-add-quote{background:0 0;color:var(--text-light);border:1px solid var(--border-color);flex-shrink:0}.product-card-actions .btn-add-quote:hover{background:var(--bg-secondary);border-color:var(--border-dark)}.model-list-toggle{display:flex;align-items:center;justify-content:center;gap:4px;width:100%;padding:8px 16px;background:var(--bg-secondary);border:none;border-top:1px solid var(--border-light);color:var(--text-light);font-size:var(--font-size-xs);font-weight:600;cursor:pointer;transition:all .15s;font-family:var(--font-sans)}.model-list-toggle:hover{background:var(--bg-accent);color:var(--accent)}.product-card-model-list{max-height:0;overflow:hidden;transition:max-height .3s ease;background:var(--bg-secondary)}.product-card-model-list.expanded{max-height:500px;overflow-y:auto}.model-list-item{display:flex;align-items:center;justify-content:space-between;padding:7px 14px;border-bottom:1px solid var(--border-light);font-size:var(--font-size-xs);transition:background .1s}.model-list-item:last-child{border-bottom:none}.model-list-item:hover{background:var(--bg-accent)}.model-list-item .model-name{font-weight:600;color:var(--text-primary);flex-shrink:0;margin-right:12px;letter-spacing:var(--letter-spacing-tight);font-feature-settings:'kern' 1}.model-list-item .model-spec{color:var(--text-light);flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.model-list-item a{color:var(--accent);text-decoration:none;font-weight:500;flex-shrink:0;margin-left:12px;font-size:var(--font-size-xs)}.model-list-item a:hover{text-decoration:underline}.product-list-view{display:flex;flex-direction:column;gap:6px}.product-list-item{display:grid;grid-template-columns:60px 1fr auto;gap:12px;align-items:center;padding:10px 14px;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:8px;text-decoration:none;color:inherit;transition:all .15s}.product-list-item:hover{border-color:var(--accent);box-shadow:0 2px 8px rgba(12,30,58,.06)}.product-list-image{width:60px;height:46px;background:var(--bg-secondary);border-radius:5px;display:flex;align-items:center;justify-content:center;overflow:hidden}.product-list-image img{max-width:80%;max-height:38px;object-fit:contain}.product-list-info{min-width:0}.product-list-name{font-size:var(--font-size-xs);font-weight:600;color:var(--text-primary);margin-bottom:2px;letter-spacing:var(--letter-spacing-tight);font-feature-settings:'kern' 1}.product-list-specs{display:flex;gap:8px;flex-wrap:wrap}.product-list-spec{font-size:var(--font-size-xs);color:var(--text-light)}.product-list-spec span{color:var(--text-secondary);font-weight:600}.product-list-actions{display:flex;gap:6px;align-items:center;flex-shrink:0}.pagination{display:flex;justify-content:center;align-items:center;gap:3px;margin-top:20px;padding-top:12px;border-top:1px solid var(--border-light)}.pagination a,.pagination span{display:inline-flex;align-items:center;justify-content:center;min-width:32px;height:32px;padding:0 6px;border-radius:5px;font-size:var(--font-size-xs);font-weight:500;text-decoration:none;transition:all .15s}.pagination a{color:var(--text-secondary);border:1px solid var(--border-color)}.pagination a:hover{background:var(--bg-accent);color:var(--accent);border-color:var(--accent)}.pagination .active{background:var(--accent);color:var(--text-inverse);border:1px solid var(--accent)}.pagination .disabled{opacity:.35;pointer-events:none}.pagination .dots{border:none;color:var(--text-light)}.empty-state{text-align:center;padding:56px 16px;color:var(--text-light)}.empty-state svg{width:56px;height:56px;margin-bottom:14px;opacity:.25}.empty-state h3{font-size:var(--font-size-base);color:var(--text-secondary);margin-bottom:6px;font-weight:600}.empty-state p{font-size:var(--font-size-xs);max-width:380px;margin:0 auto}.mobile-bottom-cta{display:none;position:fixed;bottom:0;left:0;right:0;z-index:100;background:var(--bg-primary);border-top:1px solid var(--border-color);padding:10px 16px;box-shadow:0 -4px 12px rgba(0,0,0,.06)}.mobile-bottom-cta-inner{display:flex;gap:8px;max-width:600px;margin:0 auto}.mobile-bottom-cta .cta-button{flex:1}@media (max-width:1280px){.product-center-layout{padding:10px 16px 24px;gap:14px}.product-card-view{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}.category-hero{padding:16px 20px;gap:16px}.category-hero-title{font-size:20px}}@media (max-width:1024px){.sidebar{display:none;position:fixed;top:0;left:0;bottom:0;width:260px;z-index:1200;border-radius:0;box-shadow:0 8px 32px rgba(0,0,0,.15)}.sidebar.open{display:block}.sidebar-close{display:flex}.sidebar-backdrop{display:block}.product-mobile-topbar{display:flex}.product-center-layout{padding:10px 12px;gap:0}.main-content{border-radius:8px;padding:12px}.product-card-view{grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:10px}.category-hero{flex-direction:column;padding:14px;gap:10px}.category-hero-image{width:100%;min-width:0;height:100px}.category-header{padding:18px 16px}.category-header-info h1,.category-header-info h2{font-size:var(--font-size-lg)}.category-header-info p{font-size:var(--font-size-xs)}.mobile-bottom-cta{display:block}.main-content{padding-bottom:72px}}@media (max-width:768px){.product-center-layout{padding:6px 8px}.main-content{padding:10px;border-radius:8px}.product-card-view{grid-template-columns:repeat(2,1fr);gap:8px}.product-card-image{height:90px}.product-card-body{padding:8px 10px 10px}.product-card-name{font-size:var(--font-size-xs)}.product-card-spec{font-size:10px;padding:1px 5px}.product-card-actions{flex-wrap:wrap}.product-card-actions .btn-detail,.product-card-actions .btn-inquiry{font-size:10px;padding:4px 8px}.product-card-actions .btn-add-quote{display:none}.category-hero{padding:10px;border-radius:8px}.category-hero-title{font-size:var(--font-size-lg)}.category-hero-desc{font-size:var(--font-size-xs)}.category-hero-features li{font-size:10px;padding:2px 6px}.subcategory-tabs{padding:6px;gap:4px}.subcategory-tab{padding:4px 10px;font-size:11px}.product-toolbar{flex-direction:column;gap:6px;align-items:stretch}.product-count{text-align:center}.smart-filter-bar{padding:6px}.product-list-item{grid-template-columns:50px 1fr;gap:8px}.product-list-actions{display:none}.breadcrumb{font-size:11px}.spec-table-header{flex-direction:column;gap:4px}.spec-table-header h2{font-size:var(--font-size-base)}.product-group-title{font-size:var(--font-size-sm);padding:10px 14px}.group-categories-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px;padding:12px 14px 16px}.group-category-card .group-category-image{height:110px}.group-category-info h3{font-size:var(--font-size-xs)}}@media (max-width:480px){.product-center-layout{padding:2px 4px}.main-content{padding:6px;border-radius:6px}.product-card-view{grid-template-columns:1fr;gap:8px}.product-card{border-radius:6px}.product-card-image{height:100px}.product-card-body{padding-bottom:0}.category-hero{padding:10px;border-radius:6px}.category-hero-title{font-size:var(--font-size-base)}.category-hero-image{height:80px}.subcategory-tabs{gap:3px}.subcategory-tab{padding:3px 8px;font-size:10px}.product-card-spec{font-size:10px}.cert-badge{font-size:10px}.group-categories-grid{grid-template-columns:1fr;gap:8px;padding:10px 12px 14px}.group-category-card .group-category-image{height:100px}.group-category-info{padding:10px 12px 12px}}.product-overview{display:flex;flex-direction:column;gap:16px}.spec-table-header{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:4px 0 8px;flex-wrap:wrap}.spec-table-header h2{font-size:var(--font-size-lg);font-weight:700;color:var(--text-primary);margin:0;letter-spacing:-.01em;font-feature-settings:'kern' 1,'liga' 1}.spec-count{font-size:var(--font-size-xs);color:var(--text-tertiary)}.spec-count strong{color:var(--accent);font-weight:700}.product-group-section{background:var(--bg-primary);border-radius:var(--radius-lg);border:1px solid var(--border-color);overflow:hidden;transition:box-shadow .2s ease}.product-group-section:hover{box-shadow:var(--shadow-sm)}.product-group-title{display:flex;align-items:center;gap:10px;padding:12px 18px;margin:0;font-size:var(--font-size-base);font-weight:700;color:var(--group-color,var(--primary));border-left:4px solid var(--group-color,var(--primary));background:linear-gradient(90deg,var(--group-color-light,var(--bg-secondary)) 0,var(--bg-secondary) 100%);letter-spacing:-.005em;font-feature-settings:'kern' 1,'liga' 1}.product-group-title svg{width:16px;height:16px;flex-shrink:0}.group-categories-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;padding:16px 18px 20px}.group-category-card{display:flex;flex-direction:column;background:var(--bg-primary);border-radius:var(--radius-md);border:1px solid var(--border-color);text-decoration:none;color:inherit;transition:all .2s ease;position:relative;overflow:hidden;box-shadow:var(--shadow-xs)}.group-category-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--group-color,var(--accent));opacity:0;transition:opacity .2s}.group-category-card:hover::before{opacity:1}.group-category-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--group-color,var(--accent));text-decoration:none;color:inherit}.group-category-card .group-category-image{width:100%;height:140px;overflow:hidden;position:relative;background:linear-gradient(180deg,var(--bg-secondary) 0,var(--bg-primary) 100%);display:flex;align-items:center;justify-content:center;padding:16px}.group-category-card .group-category-image img{max-width:55%;max-height:90px;object-fit:contain;transition:transform .3s ease;filter:drop-shadow(0 1px 4px rgba(0,0,0,.06))}.group-category-card:hover .group-category-image img{transform:scale(1.05)}.group-category-info{flex:1;min-width:0;padding:12px 14px 14px}.group-category-info h3{font-size:var(--font-size-sm);font-weight:600;color:var(--text-primary);margin:0 0 4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;letter-spacing:-.005em;font-feature-settings:'kern' 1,'liga' 1}.group-category-info p{font-size:var(--font-size-xs);color:var(--text-tertiary);line-height:var(--line-height-snug);margin:0 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.group-category-count{font-size:var(--font-size-xs);color:var(--text-tertiary);display:inline-flex;align-items:center;gap:3px}.group-category-count strong{color:var(--group-color,var(--accent));font-weight:700;font-size:12px}@media print{.mobile-bottom-cta,.product-mobile-topbar,.sidebar,.sidebar-backdrop,.smart-filter-bar{display:none!important}.product-center-layout{padding:0;gap:0;background:0 0}.main-content{box-shadow:none;border:none;padding:0}.product-card{break-inside:avoid;box-shadow:none;border:1px solid #ddd}.product-card:hover{transform:none;box-shadow:none}}}