.heating-container{padding-top:var(--space-xl);padding-bottom:100px}.heating-layout{display:grid;grid-template-columns:250px 1fr;gap:var(--space-xl);align-items:start}@media (max-width:900px){.heating-layout{grid-template-columns:1fr}}.heating-sidebar{position:sticky;top:100px;padding-right:var(--space-md);border-right:1px solid rgba(0,0,0,.05)}.filter-group{margin-bottom:var(--space-lg)}.filter-title{font-family:'Playfair Display',serif;font-size:var(--text-h4);margin-bottom:var(--space-sm);color:var(--color-text-main)}.filter-list{list-style:none;padding:0;margin:0}.filter-item{margin-bottom:var(--space-xs);font-size:var(--text-body-sm);color:var(--color-text-muted);cursor:pointer;transition:color .3s;display:flex;align-items:center;gap:8px}.filter-item.active,.filter-item:hover{color:var(--color-accent)}.filter-item.active{font-weight:500}.filter-checkbox{width:14px;height:14px;border:1px solid var(--color-border);border-radius:2px;display:inline-block}.filter-item.active .filter-checkbox{background-color:var(--color-accent);border-color:var(--color-accent)}.heating-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:var(--space-lg)}.heater-card{display:block;text-decoration:none;color:inherit;group:transition all 0.3s ease}.heater-img-wrapper{position:relative;aspect-ratio:4/3;overflow:hidden;background-color:#f5f5f5;margin-bottom:var(--space-sm)}.heater-img{width:100%;height:100%;object-fit:cover;transition:transform .6s}.heater-card:hover .heater-img{transform:scale(1.05)}.heater-info{text-align:left}.heater-series{font-size:var(--text-body-xs);text-transform:uppercase;letter-spacing:.1em;color:var(--color-text-muted);margin-bottom:4px;display:block}.heater-title{font-family:'Playfair Display',serif;font-size:var(--text-h4);margin-bottom:var(--space-xs);color:var(--color-text-main)}.heater-specs{font-size:var(--text-body-xs);color:var(--color-text-muted)}.view-product-btn{margin-top:var(--space-sm);font-size:var(--text-body-sm);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid transparent;display:inline-block;transition:border-color .3s}.heater-card:hover .view-product-btn{border-bottom-color:var(--color-text-main)}