.purifier-library-hero,.purifier-product-hero{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:3.2rem;margin:1.5rem 0 3rem}.purifier-library-hero h1{font-family:var(--serif);font-weight:500;line-height:1.65;font-size:clamp(1.8rem,3.2vw,3rem);letter-spacing:.04em;margin:.8rem 0 1.4rem}.purifier-library-hero>div>p:not(.eyebrow){line-height:2.2;color:var(--muted);margin-bottom:1.6rem}.purifier-figure{margin:1.5rem 0 2rem}.purifier-image-frame{background:#fff;overflow:hidden}.purifier-figure img{width:100%;height:auto;max-height:570px;object-fit:contain}.purifier-figure figcaption{font-size:.68rem;color:var(--muted);line-height:1.8;margin-top:.65rem}.purifier-library-hero .purifier-figure{margin:0}.purifier-type-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-block:1px solid var(--line);margin-bottom:1.2rem}.purifier-type-nav a{display:flex;gap:1rem;align-items:center;padding:1.2rem;text-decoration:none;border-right:1px solid var(--line)}.purifier-type-nav a:last-child{border:0}.purifier-type-nav small{font-size:.75rem;color:var(--muted);margin-left:auto}.purifier-library-note{font-size:.78rem;color:var(--muted);max-width:780px}.purifier-type-section{margin:4rem 0;scroll-margin-top:120px}.purifier-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.5rem;list-style:none;padding:0;margin:0}.purifier-card{min-width:0;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line)}.purifier-card-image{display:block;background:#fff;overflow:hidden;padding:1.5rem;height:230px}.purifier-card-image img{width:100%;height:100%;object-fit:contain}.purifier-card-body{padding:1.5rem;display:flex;flex-direction:column;flex:1;min-width:0}.purifier-card-body .eyebrow{font-size:.67rem;margin-bottom:.6rem}.purifier-card h3{font-family:var(--serif);font-size:1.5rem;line-height:1.5;margin:0 0 .8rem;overflow-wrap:anywhere}.purifier-card h3 a{text-decoration:none}.purifier-card-body>p:not(.eyebrow){font-size:.85rem;line-height:1.9;margin:.5rem 0}.purifier-card-metric{font-weight:600;color:var(--accent-dark)}.purifier-card-cycle{border-top:1px solid var(--line);padding-top:1rem}.purifier-card-cycle span{display:block;color:var(--muted);font-size:.7rem}.purifier-read-link{display:flex;justify-content:space-between;align-items:center;gap:.7rem;border-top:1px solid var(--line);padding-top:1rem;margin-top:auto;font-size:.8rem;text-decoration:none}.purifier-card-body .purifier-card-cycle{margin-bottom:1.5rem}.purifier-product-copy h1{font-family:var(--serif);font-size:clamp(2rem,4vw,3.3rem);line-height:1.5;overflow-wrap:anywhere;margin:.7rem 0 1.3rem}.purifier-product-lead{font-size:1rem;line-height:2}.purifier-check-date,.purifier-editor-note{font-size:.72rem;color:var(--muted);line-height:1.9}.purifier-product-copy .btn{margin:.6rem 0}.purifier-key-facts{display:grid;grid-template-columns:1fr 1.3fr 1fr;border-block:1px solid var(--line);padding:1.5rem 0;margin:2rem 0 3.5rem;gap:2rem}.purifier-key-facts dt{font-size:.73rem;color:var(--muted);margin-bottom:.5rem}.purifier-key-facts dd{margin:0;font-size:.95rem;overflow-wrap:anywhere}.purifier-article{margin-inline:auto}.purifier-fit{border-left:2px solid var(--accent);padding:1.2rem 1.5rem;background:var(--surface-alt)}.purifier-fit h2{font-family:var(--font);font-size:1.12rem!important;margin:0!important;padding:0!important;border:0!important}.purifier-fit p{font-size:.9rem}.purifier-toc{padding:1rem 0;margin:2rem 0;border-block:1px solid var(--line)}.purifier-toc summary{font-weight:600;min-height:30px}.purifier-toc ol{font-size:.86rem}.purifier-toc li{margin:.6rem 0}.purifier-article .detail-table th,.purifier-article .detail-table td{white-space:normal;overflow-wrap:anywhere;vertical-align:top}.purifier-source-note{font-size:.75rem!important;color:var(--muted);line-height:1.9}.purifier-purchase{background:var(--surface-alt);padding:1.7rem;margin:3rem 0}.purifier-purchase h2{font-size:1.5rem!important;margin-top:.5rem!important}.purifier-purchase p{font-size:.88rem}.purifier-manual{display:block;margin:1rem 0;font-size:.84rem}.purifier-article h2,.purifier-article section{scroll-margin-top:115px}.purifier-related{margin-top:4rem}.purifier-grid-two{grid-template-columns:repeat(2,minmax(0,1fr))}.purifier-related .purifier-card{display:grid;grid-template-columns:150px minmax(0,1fr)}.purifier-related .purifier-card-image{height:100%;padding:1rem}.purifier-related .purifier-card-body>p:not(.eyebrow):not(.purifier-card-metric){display:none}.purifier-related h3{font-size:1.2rem}.purifier-related .purifier-read-link{margin-top:1rem}.purifier-reading-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;margin:2.5rem 0}.purifier-reading-links a{padding:1.2rem;border-block:1px solid var(--line);text-decoration:none;font-size:.85rem;line-height:1.9}.purifier-reading-links small{display:block;margin-bottom:.7rem;color:var(--muted)}.purifier-guide-library{margin-top:4rem}.purifier-comparison{max-width:none!important;margin-top:4rem}.purifier-comparison table{min-width:930px}.purifier-comparison th,.purifier-comparison td{white-space:normal;min-width:160px;vertical-align:top}.purifier-comparison th:first-child{min-width:175px}.purifier-photo-spacious img{transform:scale(2.5)}.purifier-article .purifier-figure{margin:2rem 0 2.5rem}.purifier-entrance{border-left:2px solid var(--accent);padding:1.2rem 1.5rem;background:var(--surface-alt);margin:1.5rem 0}.purifier-entrance p{font-size:.9rem}.purifier-home{padding-block:4rem}.purifier-home-inner{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}.purifier-home h2{font-family:var(--serif);font-size:2rem;font-weight:500}.purifier-home p{font-size:.9rem;color:var(--muted)}.purifier-home .purifier-figure{margin:0}@media(max-width:1100px){.purifier-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.purifier-grid-two{grid-template-columns:1fr}.purifier-library-hero,.purifier-product-hero{gap:2rem}}@media(max-width:760px){.purifier-library-hero,.purifier-product-hero{grid-template-columns:1fr;gap:1.5rem;margin-bottom:2rem}.purifier-library-hero h1{font-size:1.8rem}.purifier-library-hero>div>p:not(.eyebrow){font-size:.86rem}.purifier-library-hero .purifier-figure img{aspect-ratio:4/3;object-fit:cover}.purifier-type-nav a{padding:1rem .55rem;gap:.25rem;flex-wrap:wrap;justify-content:center;font-size:.85rem}.purifier-type-nav small{margin-left:0}.purifier-type-nav a>span:last-child{display:none}.purifier-type-nav a>span:first-child{flex-basis:100%;text-align:center}.purifier-type-section{margin:2.7rem 0}.purifier-type-section .section-heading{display:block}.purifier-type-section .section-heading h2{font-size:1.6rem}.purifier-type-section .section-heading>p{margin-top:.7rem}.purifier-grid{grid-template-columns:1fr;gap:1.3rem}.purifier-card-image{height:230px;padding:1.2rem}.purifier-card-body{padding:1.3rem}.purifier-product-copy h1{font-size:2.2rem}.purifier-product-lead{font-size:.94rem}.purifier-product-hero .purifier-figure{margin:0}.purifier-product-hero .purifier-image-frame{height:280px;display:flex;align-items:center;justify-content:center}.purifier-product-hero .purifier-figure img{height:100%;width:100%;object-fit:contain}.purifier-key-facts{grid-template-columns:1fr;gap:1.1rem;padding:1.3rem 0;margin:2rem 0 2.5rem}.purifier-key-facts>div{display:grid;grid-template-columns:100px minmax(0,1fr);gap:1rem}.purifier-key-facts dt{margin:0}.purifier-key-facts dd{font-size:.85rem}.purifier-fit{padding:1.1rem}.purifier-purchase{padding:1.3rem}.purifier-purchase .btn{font-size:.8rem;line-height:1.8;white-space:normal}.purifier-related .purifier-card{grid-template-columns:100px minmax(0,1fr)}.purifier-related .purifier-card-image{padding:.5rem}.purifier-reading-links{grid-template-columns:1fr;gap:0}.purifier-reading-links a+a{border-top:0}.purifier-home-inner{grid-template-columns:1fr;gap:1.5rem}.purifier-home{padding-block:2.5rem}.purifier-home h2{font-size:1.6rem}.purifier-figure figcaption{font-size:.62rem}}.purifier-card-source{font-size:.62rem;color:var(--muted);margin-bottom:1rem}.purifier-type-section .section-heading>p{display:block;font-size:.82rem;max-width:340px}.purifier-related .purifier-card-source{font-size:.58rem}