:root{--ink:#22323f;--rose:#bd254b;--pink:#fff0f3;--teal:#21616a;--line:#dce2e6;--muted:#50616d;--paper:#fff;font-family:'Segoe UI',Arial,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}body{margin:0;line-height:1.65}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}a{color:var(--teal);text-underline-offset:4px}a:hover{color:var(--rose)}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--teal);outline-offset:4px}img,svg{max-width:100%;height:auto}h1,h2,h3{font-family:'Trebuchet MS','Segoe UI',sans-serif;line-height:1.13;letter-spacing:-.025em}h1{font-size:clamp(2.4rem,5vw,4.6rem);margin:.4em 0}h2{font-size:clamp(1.65rem,2.8vw,2.45rem);margin:0 0 .75em}h3{font-size:1.25rem;line-height:1.3}p{margin:0 0 1.15em}h2,h3,[id]{scroll-margin-top:108px}.wrap{width:min(1200px,calc(100% - 64px));margin:auto}.skip{position:fixed;top:-100px;left:16px;z-index:100;background:#fff;padding:12px}.skip:focus{top:12px}.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}.header-inner{min-height:90px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:inline-flex;flex-direction:column;text-decoration:none;flex-shrink:0}.brand img{width:150px;height:38px;object-fit:contain}.brand span{color:var(--ink);font-size:15px;letter-spacing:.1em;margin-top:1px}.primary-nav{display:flex;gap:27px;align-items:center}.primary-nav>a,.nav-group>summary{color:var(--ink);font-weight:600;text-decoration:none;padding:20px 0;cursor:pointer}.nav-group{position:relative}.nav-group>summary{list-style:none}.nav-group>summary::-webkit-details-marker{display:none}.nav-group>summary::after{content:'⌄';margin-left:8px}.nav-popover{position:absolute;right:0;top:100%;width:300px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 15px 36px #22323f1c;display:grid;gap:4px}.nav-popover a{padding:9px 12px;color:var(--ink);text-decoration:none;border-radius:6px}.nav-popover a:hover,.nav-popover a:focus{background:var(--pink);color:var(--rose)}.category-popover{width:490px;grid-template-columns:1fr 1fr}.menu-toggle{display:none}.button,button[type=submit]{display:inline-flex;justify-content:center;align-items:center;min-height:48px;background:var(--rose);color:#fff;border:1px solid var(--rose);border-radius:7px;padding:12px 22px;font-weight:600;text-decoration:none;cursor:pointer;line-height:1.3}.button:hover,button[type=submit]:hover{background:#981c3b;color:#fff}.button.secondary{background:#fff;color:var(--ink);border-color:var(--line)}.masthead{padding:58px 0 38px}.masthead-row{display:grid;grid-template-columns:1.5fr 1fr;gap:65px;align-items:end}.masthead h1{font-size:clamp(3rem,5.8vw,5.2rem);max-width:12ch;line-height:1.01;margin:0}.masthead .intro{font-size:1.2rem;margin-bottom:22px;max-width:38ch}.masthead .button{padding:13px 24px}.search-band{background:var(--pink);padding:26px 0}.product-search{display:flex;gap:16px;align-items:center}.product-search label{font-weight:700;font-size:1.12rem;white-space:nowrap}.search-controls{flex:1;display:flex;gap:10px;min-width:0}.product-search input{background:#fff;border:1px solid #b37b89;min-height:52px;padding:10px 16px;flex:1;min-width:0;border-radius:7px;color:var(--ink)}.search-hint{margin:8px 0 0;font-size:.9rem;color:var(--muted)}.section-space{padding:50px 0}.section-heading{display:flex;justify-content:space-between;align-items:baseline;gap:24px;margin-bottom:25px}.section-heading h2{margin:0}.category-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.category-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:14px;overflow:hidden;text-decoration:none;color:var(--ink);background:#fff}.category-art{display:flex;align-items:center;justify-content:center;background:var(--pink);height:132px}.category-card:nth-child(3n+2) .category-art{background:#edf5f5}.category-card:nth-child(3n) .category-art{background:#f3f2f8}.category-art svg{width:100px;height:100px;color:var(--rose)}.category-card:nth-child(3n+2) svg{color:var(--teal)}.category-card:nth-child(3n) svg{color:#625381}.category-card .card-copy{padding:20px;display:flex;flex:1;flex-direction:column}.category-card h3{margin:0 0 10px;font-size:1.16rem;letter-spacing:-.015em}.category-card p{color:var(--muted);font-size:.95rem;line-height:1.5;margin:0 0 20px}.category-card .card-link{margin-top:auto;color:var(--rose);font-weight:600;font-size:.91rem}.category-card:hover{border-color:var(--rose);color:var(--ink)}.comparison-feature{background:#eaf3f3;border-radius:18px;display:grid;grid-template-columns:1fr 1fr;gap:50px;padding:45px}.comparison-feature p{max-width:48ch}.comparison-visual{display:grid;grid-template-columns:1fr 1fr;align-content:center;gap:18px}.comparison-visual div{border-top:4px solid var(--teal);padding:16px 0}.comparison-visual strong{display:block;font-family:'Trebuchet MS',sans-serif;font-size:1.6rem;line-height:1.2}.comparison-visual span{display:block;margin-top:12px}.feature-links{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}.feature-links article{border-top:2px solid var(--line);padding-top:20px}.feature-links h3{font-size:1.45rem}.feature-links a{font-weight:600}.page-heading{padding:48px 0 32px;max-width:920px}.page-heading h1{max-width:19ch}.page-heading .intro{font-size:1.2rem;max-width:65ch;color:var(--muted)}.breadcrumb{font-size:.88rem;margin:0 0 24px}.reading-layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:65px;padding-bottom:70px}.contents{font-size:.9rem;align-self:start;position:sticky;top:120px}.contents strong{display:block;margin-bottom:12px}.contents a{display:block;border-left:2px solid var(--line);padding:8px 0 8px 14px;text-decoration:none;color:var(--muted);line-height:1.45}.contents a:hover{border-color:var(--rose);color:var(--rose)}.reading-section{margin-bottom:46px}.reading-section p{max-width:75ch}.reading-section:last-child{margin-bottom:0}.three-notes,.photo-types,.review-lenses{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}.three-notes article{border-top:2px solid var(--teal);padding-top:10px}.three-notes h3{margin-top:10px}.split-reading,.choice-pair{display:grid;grid-template-columns:1fr 1fr;gap:30px}.choice-pair article{background:#edf5f5;padding:24px;border-radius:12px}.choice-pair h3{margin-top:0}.choice-pair p:last-child{margin:0}.table-wrap{margin:28px 0;overflow-x:auto;max-width:100%}table{width:100%;border-collapse:collapse;text-align:left;font-size:.95rem}caption{text-align:left;font-weight:600;margin-bottom:12px}th,td{padding:15px;border-bottom:1px solid var(--line);vertical-align:top}thead th{background:#edf5f5;font-size:.9rem}tbody th{min-width:125px}tbody tr:nth-child(even){background:#fafbfc}.order-anatomy{padding:28px;background:var(--pink);border-radius:14px}.order-anatomy h3{margin-top:0}dl{margin:0}dl>div{display:grid;grid-template-columns:135px 1fr;gap:20px;padding:14px 0;border-bottom:1px solid var(--line)}dl>div:last-child{border:0}dt{font-weight:700}dd{margin:0}.purchase-sequence{padding:0;list-style:none;counter-reset:purchase}.purchase-sequence li{position:relative;padding:0 0 20px 58px;border-left:2px solid var(--line);margin-left:18px;counter-increment:purchase}.purchase-sequence li:before{content:counter(purchase);position:absolute;left:-20px;top:0;width:38px;height:38px;background:var(--rose);color:#fff;display:grid;place-items:center;border-radius:50%;font-weight:700}.purchase-sequence h3{padding-top:5px}.measurement-spread{display:grid;grid-template-columns:240px 1fr;gap:26px;align-items:start}.photo-types{gap:20px}.photo-types article{padding-top:12px;border-top:3px solid var(--rose)}.photo-types h3{margin-top:4px}.photo-types p{font-size:.94rem}.offer-questions{padding:10px 25px;background:var(--pink);border-radius:12px}blockquote{margin:35px 0;padding:25px 30px;border-left:4px solid var(--rose);font-family:'Trebuchet MS',sans-serif;font-size:1.65rem;line-height:1.35;background:var(--pink)}details:not(.nav-group){border-bottom:1px solid var(--line);padding:17px 0}details:not(.nav-group) summary{font-weight:600;cursor:pointer;padding-right:12px}details:not(.nav-group) p{margin-top:14px}.faq-groups h2:not(:first-child){margin-top:40px}.legal-body{max-width:760px;padding-bottom:65px}.legal-body h2{font-size:1.65rem;margin-top:32px}.site-footer{border-top:1px solid var(--line);padding:40px 0 24px;background:#fafcfc}.footer-main{display:grid;grid-template-columns:1fr 1.6fr;gap:60px;align-items:start}.footer-identity p{max-width:32ch;margin-top:18px;color:var(--muted);font-size:.94rem}.guide-help{background:#edf5f5;border-radius:14px;padding:25px 30px;display:grid;grid-template-columns:1fr auto;gap:25px;align-items:center}.guide-help h2{font-size:1.25rem;margin:0 0 8px}.guide-help p{font-size:.9rem;max-width:39ch;margin:0}.support-links{display:flex;flex-direction:column;gap:10px}.support-links a{color:var(--teal);font-weight:600}.footer-bottom{border-top:1px solid var(--line);margin-top:30px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;font-size:.85rem;color:var(--muted)}.footer-bottom nav{display:flex;gap:24px}.compare-tool{border:1px solid #97b6b8;border-radius:14px;padding:26px;background:#f4f9f9}.tool-controls{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px}.tool-controls select{padding:8px;border:1px solid #6b8990;border-radius:5px;background:#fff}.option-fields{display:grid;grid-template-columns:1fr 1fr;gap:24px}.option-fields fieldset{border:0;padding:0;margin:0;min-width:0}.option-fields legend{font-weight:700;font-size:1.2rem;margin-bottom:10px}.option-fields label{display:block;font-size:.92rem;margin:0 0 12px}.option-fields input{width:100%;display:block;border:1px solid #879ba3;border-radius:5px;padding:10px;background:#fff;color:var(--ink);margin-top:5px}.tool-actions{display:flex;gap:15px;margin:20px 0}.reset-tool{border:0;text-decoration:underline;background:transparent;color:var(--teal);cursor:pointer;padding:10px}.tool-output{margin-top:20px}.result-pair{display:grid;grid-template-columns:1fr 1fr;gap:24px}.result-pair div{padding:15px;background:#fff;border-radius:8px}.result-pair strong{font-size:1.55rem;display:block}.tool-error{color:#981c3b;font-weight:600}.error-action{margin:25px 0 70px}.noscript{padding:14px;background:#fff0f3}[hidden]{display:none!important}
@media(min-width:900px) and (max-width:1099px){.category-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.primary-nav{gap:18px}.reading-layout{grid-template-columns:170px minmax(0,1fr);gap:30px}.three-notes,.photo-types,.review-lenses{gap:16px}}
@media(max-width:899px){.wrap{width:calc(100% - 40px)}.header-inner{min-height:76px}.brand img{width:130px;height:33px}.brand span{font-size:13px}.menu-toggle{display:block;background:#fff;border:1px solid var(--line);border-radius:6px;padding:9px 14px;color:var(--ink);font-weight:600}.primary-nav{display:none}.primary-nav[data-open=true]{display:flex;position:absolute;top:100%;left:0;right:0;padding:12px 20px 25px;max-height:calc(100dvh - 76px);overflow-y:auto;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;box-shadow:0 12px 20px #22323f12}.primary-nav>a,.nav-group>summary{display:block;padding:13px 4px}.nav-popover{position:static;width:100%;box-shadow:none;border:0;border-radius:0;border-left:2px solid var(--line);padding:0 0 0 10px}.category-popover{grid-template-columns:1fr 1fr}.masthead{padding:36px 0}.masthead-row{grid-template-columns:1.2fr 1fr;gap:30px}.masthead .intro{font-size:1rem}.masthead h1{font-size:3.5rem}.product-search{display:block}.search-controls{margin-top:12px}.category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.comparison-feature{gap:30px;padding:30px}.feature-links{gap:20px}.feature-links h3{font-size:1.25rem}.reading-layout{display:block}.contents{position:static;margin-bottom:30px;padding-bottom:18px;border-bottom:1px solid var(--line)}.contents a{padding:6px 12px;display:inline-block;border:0}.contents strong{margin-bottom:5px}.footer-main{grid-template-columns:1fr;gap:25px}.footer-identity{display:flex;align-items:center;gap:35px}.footer-identity p{margin:0;max-width:50ch}.guide-help{grid-template-columns:1fr auto}.support-links{flex-direction:row;gap:22px}.measurement-spread{grid-template-columns:200px 1fr}}
@media(max-width:599px){.wrap{width:calc(100% - 36px)}.masthead-row{display:block}.masthead{padding:30px 0}.masthead h1{font-size:3.45rem;max-width:10ch;margin-bottom:22px}.masthead .intro{font-size:1.06rem}.search-band{padding:22px 0}.search-controls{flex-direction:column;gap:9px}.search-controls input,.search-controls button{width:100%}.section-space{padding:34px 0}.section-heading{align-items:flex-start;flex-direction:column;gap:10px}.category-grid{grid-template-columns:minmax(0,1fr);gap:17px}.category-art{height:115px}.category-art svg{width:88px;height:88px}.category-card .card-copy{padding:19px 22px}.category-card p{margin-bottom:16px}.comparison-feature{display:block;padding:25px}.comparison-feature h2{font-size:1.9rem}.comparison-visual{margin-top:28px;gap:24px}.comparison-visual strong{font-size:1.3rem}.comparison-visual span{font-size:.9rem}.feature-links{grid-template-columns:1fr;gap:25px}.feature-links h3{font-size:1.5rem;margin:0 0 12px}.feature-links p{margin-bottom:10px}.page-heading{padding:30px 0 24px}.page-heading h1{font-size:2.55rem}.page-heading .intro{font-size:1.08rem}.reading-section{margin-bottom:35px}.three-notes,.split-reading,.choice-pair,.photo-types,.review-lenses{grid-template-columns:1fr;gap:15px}.photo-types h3,.review-lenses h3{margin-bottom:10px}.measurement-spread{display:block}.measurement-spread svg{display:block;width:230px;margin:0 auto 22px}.table-wrap table{font-size:.85rem;table-layout:fixed}.table-wrap th,.table-wrap td{min-width:0;padding:10px 7px;overflow-wrap:anywhere}.table-wrap thead th{font-size:.79rem}.order-anatomy{padding:21px}dl>div{grid-template-columns:1fr;gap:5px}.purchase-sequence li{padding-left:34px}.footer-identity{display:block}.footer-identity p{margin-top:15px}.guide-help{display:block;padding:22px}.support-links{margin-top:18px}.footer-bottom{flex-direction:column}.footer-bottom nav{flex-wrap:wrap;gap:20px}.compare-tool{padding:20px}.option-fields,.result-pair{grid-template-columns:1fr;gap:24px}.option-fields fieldset+fieldset{border-top:1px solid var(--line);padding-top:20px}.tool-controls{display:block}.tool-controls label{display:block;margin-bottom:6px}.tool-controls select{width:100%}.category-popover{grid-template-columns:1fr}.offer-questions{padding:10px 20px}.tool-actions{flex-wrap:wrap}}
@media(prefers-reduced-motion:no-preference){a,button{transition:background-color .15s,border-color .15s,color .15s}}

.mobile-table-label{display:none}
@media(max-width:599px){.table-wrap .responsive-reference{display:block;table-layout:auto;font-size:1rem}.responsive-reference caption{display:block}.responsive-reference thead{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.responsive-reference tbody{display:block}.responsive-reference tbody tr{display:block;margin:0 0 18px;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--paper)}.table-wrap .responsive-reference tbody th,.table-wrap .responsive-reference tbody td{display:block;width:100%;min-width:0;padding:14px 16px;overflow-wrap:break-word;border-bottom:1px solid var(--line)}.responsive-reference tbody th{background:#edf5f5;font-size:1.04rem}.responsive-reference tbody td:last-child{border-bottom:0}.responsive-reference .mobile-table-label{display:block;font-size:.9rem;font-weight:700;color:var(--teal);margin-bottom:5px}}