html body.tank-protection-category-body,html body.tank-protection-category-body>.page-shell,html body.tank-protection-category-body main,html body.tank-protection-category-body .tank-protection-page,html body.tank-protection-category-body .sight-page-shell{background:#fff!important}.tank-protection-page{color:#111;min-height:0;padding-bottom:70px}.tank-protection-page .sight-page-shell,.tank-protection-shell{width:min(1460px,100% - 2rem);margin:0 auto}.tank-protection-page .home-logo-link{margin-bottom:30px}.tank-protection-intro{background:#f5f8fa;border:1px solid #d7e0e5;margin-bottom:0;display:block;overflow:hidden}.tank-protection-hero{object-fit:cover;width:100%;max-height:420px;display:block}.tank-protection-intro-copy{text-align:center;padding:clamp(24px,3vw,42px)}.tank-protection-intro h1{color:#111;margin:0 0 12px;font:300 clamp(34px,4vw,52px)/1.08 Ubuntu,Helvetica Neue,Arial,sans-serif}.tank-protection-intro p{color:#34444e;max-width:720px;margin:0 auto;font-size:clamp(17px,1.35vw,21px);line-height:1.55}.tank-protection-filter-bar{background:linear-gradient(145deg,#111d28,#071019);border:1px solid #344d64;border-radius:4px;width:100%;margin:0 0 28px;padding:18px;box-shadow:0 10px 28px #0000003d}.tank-protection-filter-heading{justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:14px;display:flex}.tank-protection-filter-eyebrow{color:#91b7d8;letter-spacing:.08em;text-transform:uppercase;margin-bottom:2px;font-size:.78rem;font-weight:700;display:block}.tank-protection-filter-heading h2{color:#f4f8fc;margin:0;font-size:clamp(1.2rem,2vw,1.55rem);line-height:1.2}.tank-protection-filter-status{color:#cbd9e6;white-space:nowrap;font-size:.92rem}.tank-protection-filter-buttons{flex-wrap:wrap;gap:8px;display:flex}.tank-protection-filter{color:#f4f8fc;min-height:38px;font:inherit;cursor:pointer;background:#02070b;border:1px solid #688096;border-radius:999px;align-items:center;gap:7px;padding:7px 12px;font-weight:600;line-height:1.2;transition:background-color .16s ease-out,border-color .16s ease-out,color .16s ease-out,transform .16s ease-out;display:inline-flex}.tank-protection-filter:hover,.tank-protection-filter:focus-visible{color:#10263a;background:#fff;border-color:#fff;outline:none;transform:translateY(-1px)}.tank-protection-filter[aria-pressed=true]{color:#10263a;background:#fff;border-color:#fff}.tank-protection-filter-count{color:#f4f8fc;background:#1a3042;border-radius:999px;justify-content:center;align-items:center;min-width:1.65em;height:1.65em;padding:0 .4em;font-size:.78em;line-height:1;display:inline-flex}.tank-protection-filter[aria-pressed=true] .tank-protection-filter-count{color:#10263a;background:#dbe7f1}.tank-protection-card.tank-filter-hidden{display:none!important}.tank-protection-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;display:grid}.tank-protection-card{color:#111;background:#fff;border:1px solid #cbd6dc;flex-direction:column;min-width:0;min-height:100%;text-decoration:none;transition:border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;display:flex;overflow:hidden;box-shadow:0 4px 15px #00314e14}.tank-protection-card:hover,.tank-protection-card:focus-visible{color:#111;border-color:#0066a2;outline:none;text-decoration:none;transform:translateY(-3px);box-shadow:0 9px 24px #00497329}.tank-protection-card-copy{padding:18px 20px}.tank-protection-card h2{color:#003a5c;text-align:center;min-height:2.5em;margin:0;font:700 clamp(19px,1.5vw,23px)/1.25 Helvetica Neue,Arial,sans-serif}.tank-protection-image{background:#fff;border-top:1px solid #e1e7ea;border-bottom:1px solid #e1e7ea;justify-content:center;align-items:center;min-height:260px;padding:18px;display:flex}.tank-protection-image img{object-fit:contain;filter:contrast(1.025)saturate(1.015);width:100%;height:230px}.tank-protection-card[href=\/vent-combination-arresters] .tank-protection-image{overflow:hidden}.tank-protection-card[href=\/vent-combination-arresters] .tank-protection-image img{transform:scale(1.9)}.tank-protection-description{flex-direction:column;flex:1;min-height:150px;display:flex}.tank-protection-description p{color:#273640;text-align:center;margin:0 0 18px;font-size:16px;line-height:1.5}.tank-protection-action{color:#fff;background:#5e5e5e;justify-content:center;align-self:center;align-items:center;margin-top:auto;padding:7px 15px;font-size:14px;line-height:1.3;display:inline-flex}.tank-protection-card:hover .tank-protection-action,.tank-protection-card:focus-visible .tank-protection-action{background:#0066a2}@media (width<=1200px){.tank-protection-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (width<=900px){.tank-protection-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tank-protection-hero{max-height:320px}}@media (width<=680px){.tank-protection-filter-heading{flex-direction:column;align-items:flex-start;gap:6px}.tank-protection-filter-status{white-space:normal}.tank-protection-filter{justify-content:space-between;width:100%}.tank-protection-page .sight-page-shell,.tank-protection-shell{width:100%}.tank-protection-grid{grid-template-columns:1fr}.tank-protection-intro-copy{padding:20px}.tank-protection-image{min-height:220px}.tank-protection-image img{height:195px}}