:root{color-scheme:dark;--bg:#141618;--surface:#1c1f22;--text:#f3f2ee;--muted:#b1b5b8;--line:#383c40;--accent:#c63e31;--gutter:clamp(22px,4vw,64px);font-family:Arial,Helvetica,sans-serif;font-synthesis:none}*{box-sizing:border-box}html{scroll-padding-top:28px}body{margin:0;background:var(--bg);color:var(--text);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}h1,h2,h3,p,figure,ol,ul,dl{margin:0}h1,h2,h3{font-weight:400;line-height:1.14;letter-spacing:-.035em}h1{font-size:clamp(38px,4vw,58px)}h2{font-size:clamp(30px,2.7vw,40px)}h3{font-size:24px}p{color:var(--muted)}a{color:inherit;text-decoration:none}a:hover{color:#fff}button,input,textarea,select{font:inherit;color:inherit}button{cursor:pointer}img{display:block;max-width:100%;height:auto}button,a{touch-action:manipulation}a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid #eeb9ad;outline-offset:5px}input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid 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@media(min-width:1800px){.hero{min-height:610px}.hero h1{font-size:59px}}
@media(max-width:1000px){.header{gap:22px}.header nav{gap:18px}.language{margin-left:4px}.logo>span{font-size:33px}.hero{grid-template-columns:46% 54%;min-height:510px}.hero h1{font-size:44px}.hero .actions{gap:12px}.hero .button{padding-inline:17px}.service-grid{grid-template-columns:1fr 1fr;gap:35px}.service-grid .number{margin-bottom:17px}.section-head{gap:40px}.brand-feature{padding:22px;grid-template-columns:1fr 44%;gap:15px}.brand-feature h3{font-size:32px}.steps li{grid-template-columns:40px 230px 1fr;gap:20px}.contact,.faq{gap:50px}.model-hero{gap:40px}.model-content{gap:50px}.filters{grid-template-columns:1fr 1fr}.filters:has(label:nth-child(3):last-child){grid-template-columns:2fr 1fr 1fr}.lens-grid{gap:30px 20px}.lens-card h2{font-size:23px}.annual{gap:40px}.email{font-size:18px}.form-row{grid-template-columns:1fr}.footer-links{gap:18px}.model-copy h1{font-size:37px}}
@media(max-width:760px){.header{min-height:82px;position:relative;gap:20px}.menu-toggle{display:block;margin-left:auto;background:none;border:0;padding:12px 0;font-size:14px}.header nav{display:none;position:absolute;z-index:20;left:0;right:0;top:81px;background:#202529;border:1px solid #41484f;padding:15px 24px;margin:0;flex-direction:column;gap:0}.header.nav-open nav{display:flex}.language{gap:12px}.hero{grid-template-columns:1fr;min-height:0;padding:42px 0 24px}.hero h1{font-size:46px;max-width:590px}.hero .eyebrow{font-size:12px}.hero-copy .lead{max-width:520px}.hero-image{margin-top:16px;width:100%;max-width:620px;justify-self:center}.hero-image figcaption{text-align:center;font-size:12px}.facts{grid-template-columns:1fr;padding:0}.facts>div,.facts>div:first-child{border:0;border-top:1px solid var(--line);padding:17px 0;display:flex;justify-content:space-between;gap:15px;align-items:center}.facts>div:first-child{border:0}.facts strong{font-size:16px}.facts span{font-size:13px;margin:0;text-align:right}.section{padding-block:58px}.section-head{grid-template-columns:1fr;gap:22px;margin-bottom:30px}.section-head p{font-size:16px}.section-head>.underlink{justify-self:start}.service-grid{gap:30px 24px}.service-grid h3{font-size:23px}.brand-grid{grid-template-columns:1fr}.brand-feature{min-height:200px;grid-template-columns:1fr 44%;gap:20px}.brand-feature h3{font-size:38px}.brand-photo{max-height:210px}.catalog-teaser{padding-top:0}.process{padding-top:0}.steps li{grid-template-columns:30px 1fr;gap:10px 18px;padding:22px 0}.steps p{grid-column:2}.steps h3{font-size:22px}.steps span{grid-row:1/3}.annual{grid-template-columns:1fr;gap:22px;padding:28px}.annual h2{font-size:29px}.faq{grid-template-columns:1fr;gap:28px}.faq h2{max-width:none}.contact{grid-template-columns:1fr;gap:40px}.contact h2{max-width:450px}.email{font-size:22px}.form-row{grid-template-columns:1fr 1fr}.footer{align-items:start;flex-direction:column;gap:25px}.footer-links{flex-wrap:wrap;gap:18px}.page-top .eyebrow{margin-top:32px}.page-top h1{font-size:42px}.page-top .lead{font-size:17px}.filters{padding:18px;gap:14px}.filters:has(label:nth-child(3):last-child){grid-template-columns:1fr 1fr}.filters .search-field{grid-column:1/-1}.lens-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 20px}.lens-card h2{font-size:24px}.card-copy{padding-top:15px}.help-strip{display:block;padding:25px;margin:40px 0 55px}.help-strip .button{margin-top:22px}.help-strip h2{font-size:27px}.model-hero{grid-template-columns:1fr;gap:26px;padding:27px 0 40px}.model-hero figure{max-width:570px;width:100%}.model-copy h1{font-size:43px}.model-content{grid-template-columns:1fr;gap:35px;padding-top:32px}.document-panel{padding:25px}.related{padding-bottom:0}.care-grid{gap:30px}.packing{grid-template-columns:1fr;gap:28px;margin-top:45px}.care-content h2{font-size:28px}.table-scroll{margin-bottom:35px}.care-grid h2{font-size:25px}table{min-width:650px}.privacy-content h1{font-size:40px}}
@media(max-width:480px){.hero h1{font-size:39px}.hero .lead{font-size:17px}.hero .actions{align-items:stretch}.hero .button{font-size:15px;padding:13px 17px}.hero-copy .lead{margin-block:22px}.logo>span{font-size:32px}.logo small{font-size:11px}.header{gap:16px}.language{gap:10px;font-size:13px}.service-grid{grid-template-columns:1fr}.service-grid .number{margin-bottom:13px}.service-grid article{padding-top:16px}.brand-feature{padding:22px;grid-template-columns:1fr 46%}.brand-feature h3{font-size:32px}.brand-feature p{font-size:13px}.quick-search{flex-wrap:wrap}.quick-search input{flex-basis:100%}.quick-search .button{width:100%}.facts>div{align-items:start}.facts strong{flex-shrink:0}.facts span{max-width:170px}.annual{padding:25px}.form-row{grid-template-columns:1fr}.email{font-size:20px}.filters{grid-template-columns:1fr 1fr}.filters select{font-size:14px;padding:12px 8px}.filters .search-field{grid-column:1/-1}.lens-grid{grid-template-columns:1fr 1fr;gap:27px 16px}.lens-meta{font-size:12px;line-height:1.6}.lens-card h2{font-size:20px}.lens-range{font-size:13px;line-height:1.5}.lens-card .underlink{font-size:13px}.card-photo{aspect-ratio:1}.page-top h1{font-size:35px}.model-copy h1{font-size:37px}.related .lens-grid{grid-template-columns:1fr 1fr}.related .lens-card:last-child{display:none}.care-grid{grid-template-columns:1fr}.help-strip{padding:24px}.hero-image{margin-top:24px}.model-service-title{font-size:21px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.reference-links{display:flex;align-items:center;gap:24px;flex-wrap:wrap;padding:23px 0;border-bottom:1px solid var(--line);font-size:14px}.reference-links>span{color:#929ca3}.reference-links a{border-bottom:1px solid #717b82;padding-bottom:2px}.model-main .reference-links{display:block;border:0;padding-top:17px}.model-main .reference-links>span{display:none}.model-main .reference-links a{display:table;margin:0 0 15px}.model-gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:10px}.model-gallery a{background:#f5f5f5;border-radius:2px;overflow:hidden}.model-gallery img{width:100%;height:100%;object-fit:contain}.guide-content>.lead{max-width:790px;margin-bottom:45px}.guide-section{margin:48px 0}.guide-section h2{font-size:30px;margin-bottom:22px}.guide-section p{max-width:810px;margin-top:18px}.control-chain{padding:0;list-style:none;display:grid;grid-template-columns:1fr 1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);counter-reset:step}.control-chain li{counter-increment:step;background:var(--surface);padding:22px 24px;font-size:17px}.control-chain li:before{content:'0' counter(step);display:block;color:#8f999f;font-size:13px;margin-bottom:8px}.control-photos{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:40px 0}.control-photo{background:#fff;aspect-ratio:1.3;display:flex;align-items:center;justify-content:center}.control-photo img{width:100%;height:100%;object-fit:contain}.control-photos figcaption{font-size:13px;margin-top:12px;color:var(--muted)}.control-photos figcaption a{border-bottom:1px solid var(--line)}.compatibility td:first-child{width:23%;color:#eee}.compatibility td:nth-child(2){width:43%}.source-links{display:flex;gap:25px;flex-wrap:wrap;margin-top:23px;font-size:14px}.source-links a{text-decoration:underline;text-underline-offset:4px}.code-section{margin:55px 0;padding-top:30px;border-top:1px solid var(--line)}.code-heading{display:grid;grid-template-columns:1fr 320px;gap:50px;align-items:center}.code-heading h2{font-size:35px;overflow-wrap:anywhere}.guide-lens{background:#f5f5f5;aspect-ratio:1.6;display:flex;justify-content:center;align-items:center}.guide-lens img{height:100%;width:100%;object-fit:contain}.code-parts{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin:30px 0}.code-parts>div{border-top:2px solid #8e969c;padding-top:18px}.code-parts dt{font-size:27px;margin-bottom:12px;color:#f1eeea}.code-parts dd{margin:0;color:var(--muted);font-size:15px}.code-section>p{max-width:880px;margin:18px 0}.guide-content>.small{max-width:900px}
@media(max-width:760px){.control-photos{grid-template-columns:1fr 1fr}.control-photos figure:last-child{grid-column:1/-1;max-width:360px}.code-heading{grid-template-columns:1fr 36%;gap:25px}.code-heading h2{font-size:29px}.code-parts{grid-template-columns:1fr 1fr}.control-chain li{padding:18px;font-size:16px}.reference-links{gap:16px}.reference-links>span{flex-basis:100%}}
@media(max-width:480px){.control-chain{grid-template-columns:1fr}.control-chain li{display:flex;gap:16px;align-items:center;padding:18px}.control-chain li:before{margin:0}.control-photos{grid-template-columns:1fr}.control-photos figure:last-child{grid-column:auto;max-width:none}.code-heading{grid-template-columns:1fr}.guide-lens{max-width:320px}.code-heading h2{font-size:30px}.code-parts dt{font-size:25px}}
/* Two optical traditions, one specialist service. */
:root{--canon:#df353b;--fujinon:#249f78}
body[data-brand=canon]{--accent:#ce2831}body[data-brand=fujinon]{--accent:#167b59}
body[data-brand=canon] .page-top{border-bottom:2px solid var(--canon)}body[data-brand=fujinon] .page-top{border-bottom:2px solid var(--fujinon)}
body[data-brand=canon] .model-copy .eyebrow{color:#f18c91}body[data-brand=fujinon] .model-copy .eyebrow{color:#66c6a4}
body[data-brand=canon] .button:hover{background:#ae1d27}body[data-brand=fujinon] .button:hover{background:#116244}
.dual-hero{padding:36px 0 0;background:linear-gradient(90deg,#1c1518 0%,#171719 49.9%,#141b19 50%,#121b18 100%)}
.dual-intro{text-align:center;margin-bottom:30px}.dual-intro .eyebrow{font-size:12px;margin-bottom:13px;color:#b8bdc0}.dual-intro h1{font-size:clamp(34px,3.3vw,49px);letter-spacing:-.04em}.dual-intro>p:last-child{font-size:16px;margin-top:14px;color:#9fa7ab}
.worlds{max-width:1360px;display:grid;grid-template-columns:1fr 1fr;gap:0}.brand-world{min-width:0;position:relative;--world-accent:var(--canon);--world-light:#f39397}.brand-world.fujinon{--world-accent:var(--fujinon);--world-light:#75cdb0;border-left:1px solid #3a4140}
.world-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:0 32px;padding:23px 0 12px;border-top:2px solid var(--world-accent)}.world-heading h2{font-size:38px;letter-spacing:-.025em}.fujinon .world-heading h2{font-size:32px;letter-spacing:.06em;font-weight:500}.world-heading>span{font-size:12px;color:#abb3b5;letter-spacing:.06em}
.world-visual{position:relative;display:block;isolation:isolate;aspect-ratio:1.5;overflow:hidden;background:#111517}.world-visual img{height:100%;width:100%;object-fit:contain;padding:0 12px 16px}.world-visual:after{content:'';position:absolute;inset:0;pointer-events:none;box-shadow:inset 0 0 30px 10px #15171933}.world-caption{position:absolute;bottom:12px;left:32px;right:22px;z-index:2;color:#afb5b8;font-size:12px;line-height:1.5;text-shadow:0 1px 7px #000}
.world-footer{display:flex;align-items:center;justify-content:space-between;gap:18px;margin:0 32px;padding:18px 0 24px;border-bottom:1px solid #373b3e}.world-footer .button.secondary{border-color:var(--world-accent);background:transparent;font-size:15px;min-height:46px;padding:10px 21px}.world-footer .button:hover{background:color-mix(in srgb,var(--world-accent) 20%,transparent)}.world-footer>span{font-size:13px;color:#9aa5a8}
.dual-action{display:flex;align-items:center;justify-content:center;gap:30px;padding:27px 0 32px}.dual-action p{font-size:15px}.dual-action .button{background:#eeeae4;color:#171a1c;border-color:#eeeae4;font-size:15px;min-height:46px;padding:11px 24px}.dual-action .button:hover{background:white;border-color:white}
body[data-brand=dual] .facts{border-top:0}.brand-feature[data-brand=canon]{border-top:2px solid var(--canon);background:linear-gradient(120deg,#271d20,#1b1e21)}.brand-feature[data-brand=fujinon]{border-top:2px solid var(--fujinon);background:linear-gradient(120deg,#172821,#1b1e21)}
.lens-card[data-brand=Canon] .card-copy{border-top:2px solid var(--canon)}.lens-card[data-brand=Fujinon] .card-copy{border-top:2px solid var(--fujinon)}.lens-card[data-brand=Fujinon]:hover h2 a{color:#82d2b5}
body[data-brand=fujinon] .logo b{color:#83cdb4}body[data-brand=dual] .logo b{color:#eeeae4}body[data-brand=dual] .logo:after{content:'';display:block;width:100%;height:2px;margin-top:10px;background:linear-gradient(90deg,var(--canon) 50%,var(--fujinon) 50%)}
@media(min-width:1800px){.dual-hero{padding-top:42px}.dual-intro{margin-bottom:35px}.world-heading h2{font-size:42px}}
@media(max-width:1000px){.world-heading,.world-footer{margin-inline:20px}.world-heading h2{font-size:34px}.fujinon .world-heading h2{font-size:28px}.world-caption{left:20px;font-size:11px}.world-footer{gap:10px}.world-footer .button.secondary{font-size:14px;padding-inline:14px}.world-footer>span{font-size:12px}.world-heading>span{font-size:11px}}
@media(max-width:760px){.dual-hero{padding-top:30px;background:#141719}.dual-intro{margin-bottom:28px}.dual-intro h1{font-size:36px;max-width:520px;margin:auto}.dual-intro>p:last-child{font-size:14px}.worlds{grid-template-columns:1fr;max-width:580px;gap:28px}.brand-world.canon{background:linear-gradient(135deg,#21181c,#151719)}.brand-world.fujinon{background:linear-gradient(135deg,#13251e,#151719);border-left:0}.world-heading{padding-top:20px}.world-heading h2{font-size:38px}.fujinon .world-heading h2{font-size:32px}.world-heading>span{font-size:12px}.world-footer{padding-bottom:22px}.world-footer .button.secondary{font-size:15px}.world-caption{font-size:12px;bottom:8px}.dual-action{flex-direction:column;gap:17px;text-align:center;padding-block:28px}.dual-action .button{min-width:240px}.dual-intro .eyebrow{font-size:11px;letter-spacing:.09em}.world-footer>span{font-size:13px}}
@media(max-width:420px){.dual-intro h1{font-size:32px}.world-heading,.world-footer{margin-inline:16px}.world-heading h2{font-size:34px}.fujinon .world-heading h2{font-size:29px}.world-visual{aspect-ratio:1.34}.world-caption{left:16px;font-size:11px;right:12px}.world-footer .button.secondary{font-size:14px;padding-inline:12px}.world-footer>span{font-size:12px}.world-heading>span{font-size:11px}}

/* Original product photos: common graphite field and undistorted optical proportions. */
.brand-photo,.card-photo,.model-image,.model-gallery a,.guide-lens{background:#202428;border-radius:0}
.card-photo,.brand-photo,.guide-lens{aspect-ratio:4/3}
.card-photo img,.brand-photo img,.model-image img,.model-gallery img,.guide-lens img{width:100%;height:100%;object-fit:contain}
.model-gallery a{aspect-ratio:4/3}
.model-hero figcaption a{text-decoration:underline;text-underline-offset:3px}
@media(max-width:760px){.card-photo{aspect-ratio:4/3}.lens-grid{gap:24px 16px}}

.form-trap{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}.service-form input[type=file]{padding:12px;font-size:14px}.service-form input[type=file]::file-selector-button{background:#333a40;color:#fff;border:1px solid #66717b;padding:8px 12px;margin-right:12px;cursor:pointer}.service-form button:disabled{opacity:.55;cursor:wait}.form-status{overflow-wrap:anywhere}.form-status:not(:empty){padding:14px 0;line-height:1.6}.form-status a{text-decoration:underline}

.service-form .form-row{margin-bottom:22px}