.erg{--erg-ink:#202c31;--erg-muted:#556269;--erg-line:#dce3e5;--erg-teal:#eaf5f2;--erg-blue:#edf2fa;color:var(--erg-ink);max-width:1200px;margin:auto;padding:42px 32px 80px;font-size:16px;line-height:1.65}.erg *{box-sizing:border-box}.erg h1,.erg h2,.erg h3,.erg h4,.erg p,.erg figure,.erg dl{margin:0}.erg h1{font-size:clamp(30px,3.5vw,46px);line-height:1.15;letter-spacing:-.025em;max-width:880px;margin:12px 0 18px}.erg h2{font-size:29px;line-height:1.25;letter-spacing:-.015em;margin:8px 0 22px}.erg h3{font-size:18px;line-height:1.4;margin-bottom:8px}.erg a{color:inherit;text-underline-offset:4px}.erg a:focus-visible,.erg summary:focus-visible{outline:3px solid #467a80;outline-offset:4px}.erg-hero{max-width:900px}.erg-hero>p:not(.erg-kicker){max-width:800px;color:var(--erg-muted)}.erg-back{font-size:14px;display:inline-block;margin-bottom:22px}.erg-kicker{font-size:12px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:#51676b}.erg-hero 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var(--erg-line);padding:20px;border-radius:5px}.erg-card p{font-size:14px;color:var(--erg-muted)}.erg-example-warning{font-size:13px;font-weight:650;padding:13px 16px;border-left:3px solid #8a6940;background:#faf5e9;margin-bottom:20px!important}.erg-example-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:22px;align-items:start}.erg-slip{border:1px solid #c6d0d3;background:#fff;box-shadow:0 7px 20px #20303908;border-radius:6px;overflow:hidden}.erg-slip figcaption,.erg-form-example>h3{font-size:15px;font-weight:650;display:flex;align-items:center;gap:9px;padding:15px 17px;border-bottom:1px solid var(--erg-line);margin:0}.erg-step{display:inline-grid;place-items:center;width:24px;height:24px;background:#263d42;color:white;border-radius:50%;font-size:12px;flex:0 0 24px}.erg-slip-head{padding:22px 17px}.erg-slip-head h3{font-size:19px;margin:8px 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h4{font-size:12px;margin-bottom:9px}.erg-eye dl{display:grid;gap:10px}.erg-eye dl>div{display:grid;grid-template-columns:minmax(0,1fr) 82px;align-items:center;gap:12px}.erg-eye dt{font-size:14px;line-height:1.45;overflow-wrap:break-word}.erg-eye dd{margin:0;padding:7px 8px;border:1px solid #bdccce;background:white;border-radius:4px;font-size:15px;line-height:1.3;font-variant-numeric:tabular-nums}.erg-eye dd span{float:right;color:#78888c;font-size:11px}.erg-pd-map{margin:8px 12px}.erg-pd-map>p{display:flex;align-items:center;justify-content:space-between;font-size:14px;padding:2px 0 8px;gap:10px}.erg-pd-map>p>span{padding:3px 12px;border:1px solid #becdce;border-radius:3px;font-weight:650}.erg-pd-pair{display:grid;grid-template-columns:1fr 1fr;gap:8px}.erg-pd-pair>div{padding:9px;border-radius:4px}.erg-pd-pair span{display:block;font-size:14px;line-height:1.45}.erg-pd-pair strong{font-size:17px;font-variant-numeric:tabular-nums}.erg-small{font-size:11px;line-height:1.5;color:var(--erg-muted);padding:5px 14px 13px}.erg-explain{margin-top:18px}.erg-explain .erg-card{background:#f7f9f9;padding:16px}.erg-explain h3{font-size:16px}.erg-note{padding:16px 18px;margin-top:18px;background:#f2f5f5;border-left:3px solid #6b8c8e;font-size:14px}.erg-definitions{border-top:1px solid var(--erg-line)}.erg-definitions>div{display:grid;grid-template-columns:150px minmax(0,1fr);gap:18px;padding:18px 0;border-bottom:1px solid var(--erg-line)}.erg-definitions h3{font-size:15px;margin:0}.erg-definitions p{font-size:14px;color:var(--erg-muted)}.erg-zero{margin-top:20px;padding:18px;border:1px solid #ccdcd9;border-radius:4px}.erg-zero strong{font-size:15px}.erg-zero p{font-size:14px;color:var(--erg-muted);margin-top:6px}.erg-section>p:not(.erg-kicker){margin-top:17px;color:var(--erg-muted);font-size:15px}.erg-text-link{display:inline-block;font-size:14px;margin-top:16px}.erg-faq-group{margin:24px 0}.erg-faq-group>h3{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:#596d72;margin-bottom:9px}.erg-faq-group details{border-bottom:1px solid var(--erg-line)}.erg-faq-group summary{cursor:pointer;display:flex;justify-content:space-between;align-items:start;gap:18px;list-style:none;padding:16px 0;font-size:15px;font-weight:600}.erg-faq-group summary::-webkit-details-marker{display:none}.erg-faq-group summary>span{font-size:20px;line-height:1.2;font-weight:400}.erg-faq-group details[open] summary>span{transform:rotate(45deg)}.erg-faq-group details>p{font-size:14px;color:var(--erg-muted);padding:0 28px 20px 0}.erg-checks{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:10px}.erg-checks li{display:flex;align-items:start;gap:11px;font-size:15px}.erg-checks li>span{color:#346d61;font-weight:700}.erg-sources{font-size:12px;padding-top:26px;color:var(--erg-muted)}.erg-sources summary{cursor:pointer}.erg-sources ul{padding-left:18px;display:grid;gap:7px}.erg-footer{padding-top:30px}.erg-footer p{font-size:13px;color:var(--erg-muted)}.erg-footer .erg-guide-nav{grid-template-columns:repeat(3,minmax(0,1fr));margin:14px 0 25px}.erg-shop{display:inline-block;background:#253c41;color:white!important;text-decoration:none;border-radius:4px;padding:12px 22px;font-size:14px}@media(min-width:1500px){.erg{max-width:1280px}}@media(max-width:1050px){.erg-layout{grid-template-columns:1fr}.erg-toc{position:static;border-bottom:1px solid var(--erg-line);padding-bottom:20px}.erg-toc nav{display:flex;flex-wrap:wrap;gap:0 20px}.erg-toc h2{margin-bottom:4px}.erg-layout{gap:22px}}@media(max-width:650px){.erg{padding:28px 20px 55px;font-size:15px}.erg h1{font-size:32px}.erg 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.edg{--edg-ink:#243238;--edg-muted:#5c686c;--edg-accent:#285d68;--edg-soft:#f5f7f7;--edg-line:#dce3e4;max-width:1280px;margin:0 auto;padding:28px 40px 72px;color:var(--edg-ink);font-size:16px;line-height:1.65}.edg *{box-sizing:border-box}.edg a{color:inherit;text-underline-offset:4px}.edg a:focus-visible,.edg summary:focus-visible{outline:3px solid var(--edg-accent);outline-offset:4px}.edg-breadcrumb{display:flex;flex-wrap:wrap;gap:6px 10px;font-size:12px;color:var(--edg-muted);margin-bottom:26px}.edg-breadcrumb a{text-decoration:none}.edg-layout{display:grid;grid-template-columns:230px minmax(0,1fr);gap:40px;align-items:start}.edg-sidebar{background:var(--edg-soft);border:1px solid var(--edg-line);border-radius:5px;overflow:hidden}.edg-nav-title{font-size:12px;font-weight:700;letter-spacing:.04em;margin:0;padding:20px 18px 12px}.edg-nav{display:grid}.edg-nav a{padding:16px 18px;text-decoration:none;font-size:14px;line-height:1.5;border-top:1px solid #e8eded}.edg-nav a:hover{background:#e7eeee}.edg-nav a[aria-current]{background:var(--edg-accent);color:white;font-weight:650}.edg-mobile-menu{display:none}.edg-main,.edg-article{min-width:0}.edg-heading{padding-bottom:26px}.edg h1,.edg h2,.edg h3{font-family:inherit;font-weight:650;letter-spacing:-.02em;color:var(--edg-ink);overflow-wrap:break-word}.edg h1{font-size:36px;line-height:1.18;margin:0 0 16px}.edg h2,.edg .erg h2{font-size:26px;line-height:1.25;margin:0 0 18px}.edg h3,.edg .erg h3{font-size:18px;line-height:1.4;margin:0 0 10px}.edg p{margin:0 0 16px}.edg p:last-child{margin-bottom:0}.edg-heading>p{color:var(--edg-muted);max-width:64ch}.edg-section,.edg .erg-section{padding:30px 0;border-bottom:1px solid var(--edg-line);scroll-margin-top:110px}.edg-section:first-child{padding-top:0}.edg-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:18px 0}.edg-panel,.edg .erg-card{background:var(--edg-soft);border:0;border-radius:4px;padding:24px}.edg-panel p{font-size:15px;color:var(--edg-muted)}.edg-split{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}.edg-pd-figure{margin:0}.edg-pd-figure img{width:100%;height:auto;display:block}.edg-pd-figure figcaption{font-size:12px;line-height:1.55;padding:12px 0 0;color:var(--edg-muted)}.edg-steps{padding-left:24px;margin:18px 0}.edg-steps li{padding:6px 0 6px 4px}.edg-caption{font-size:13px;color:var(--edg-muted);margin-top:12px!important}.edg-size-code{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;background:var(--edg-soft);padding:24px}.edg-size-code>div{text-align:center}.edg-size-code strong{display:block;font-size:36px;font-weight:500;line-height:1.2}.edg-size-code span{display:block;font-size:12px;margin-top:10px}.edg-frame-photos figure{margin:0;background:var(--edg-soft)}.edg-frame-photos img{display:block;width:100%;height:auto}.edg-frame-photos figcaption{padding:12px 16px;font-size:13px;color:var(--edg-muted)}.edg-purpose-label{display:inline-block;font-size:11px;letter-spacing:.1em;color:var(--edg-accent);margin-bottom:18px}.edg-definitions{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:18px 0}.edg-definitions>div{padding:24px;background:var(--edg-soft)}.edg-definitions dt,.edg-index dt{font-size:18px;font-weight:650;margin-bottom:12px;line-height:1.4}.edg-definitions dd,.edg-index dd{margin:0;font-size:15px;line-height:1.65;color:var(--edg-muted)}.edg-index{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:22px 0}.edg-index>div{background:var(--edg-soft);padding:22px}.edg-lens-sample{display:flex;align-items:center;gap:15px;margin:0 0 20px;height:64px}.edg-lens-sample i{display:block;width:60px;height:60px;border:1px solid #cad1d3;border-radius:50%;background:linear-gradient(135deg,#fff,#e9f0f1);box-shadow:inset 0 1px 4px #fff}.edg-lens-sample--blue i{background:linear-gradient(135deg,#fff,#e6ebf8)}.edg-lens-sample--photo i:last-child,.edg-lens-sample--tint i{background:linear-gradient(135deg,#929da2,#3e4a50)}.edg-care{list-style:none;counter-reset:care;padding:0;margin:0;display:grid;gap:16px}.edg-care li{counter-increment:care;background:var(--edg-soft);padding:24px 24px 24px 65px;position:relative}.edg-care li:before{content:counter(care,decimal-leading-zero);position:absolute;left:24px;top:26px;color:var(--edg-accent);font-size:13px}.edg-care p{font-size:15px;color:var(--edg-muted)}
.edg .erg{max-width:none;margin:0;padding:0;font:inherit;--erg-ink:var(--edg-ink);--erg-muted:var(--edg-muted);--erg-line:var(--edg-line)}.edg .erg-section:first-child{padding-top:0}.edg .erg-example-grid{grid-template-columns:minmax(0,1fr)}.edg .erg-example-warning{margin-top:0!important}.edg .erg-section>p:not(.erg-kicker){font-size:15px}.edg .erg-kicker{color:var(--edg-muted)}.edg .erg-slip-head h3{font-size:18px}.edg .erg-slip-table thead th{font-size:11px}.edg .erg-slip-table tbody th{font-size:12px}.edg .erg-slip-table{font-size:15px}.edg .erg-slip-table th,.edg .erg-slip-table td{padding:15px 8px}.edg .erg-form-example{padding-bottom:8px}.edg .erg-eye{padding:16px}.edg .erg-eye dl>div{grid-template-columns:minmax(0,1fr) 88px}.edg .erg-form-example>h3{font-size:16px}.edg .erg-explain h3{font-size:18px}.edg .erg-two{margin:18px 0}.edg .erg-section>p{margin-bottom:16px}
.efg-measurement-figure{margin:0}.efg-measurement-desktop{position:relative;width:100%;aspect-ratio:1774/380;overflow:hidden;background:#fff}.efg-measurement-desktop img{position:absolute;display:block;top:0;left:0;width:100%;height:auto;transform:translateY(-25.93%)}.efg-measurement-panels{display:none}.efg-measurement-figure figcaption{font-size:13px;line-height:1.6;color:var(--edg-muted);margin-top:12px}.efg-measurement-open{display:inline-block;font-size:13px;margin-top:8px}
@media(min-width:1200px){.edg .erg-example-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px}.edg .erg-eye dl>div{grid-template-columns:minmax(0,1fr) 76px;gap:10px}}
@media(max-width:899px){.edg{padding:22px 24px 56px}.edg-layout{grid-template-columns:minmax(0,1fr);gap:0}.edg-sidebar{display:none}.edg-mobile-menu{display:block;border:1px solid var(--edg-line);border-radius:4px;background:var(--edg-soft);margin-bottom:26px}.edg-mobile-menu>summary{display:flex;justify-content:space-between;gap:12px;padding:15px 17px;font-size:14px;font-weight:650;cursor:pointer;list-style:none}.edg-mobile-menu>summary::-webkit-details-marker{display:none}.edg-mobile-menu>summary span{font-size:20px;line-height:1}.edg-mobile-menu[open]>summary span{transform:rotate(45deg)}.edg h1{font-size:32px}.edg-index{grid-template-columns:minmax(0,1fr)}}
@media(max-width:599px){.edg{padding:20px 20px 48px;font-size:15px}.edg-breadcrumb{font-size:11px;gap:5px 8px;margin-bottom:18px}.edg h1{font-size:30px;line-height:1.2}.edg h2,.edg .erg h2{font-size:24px;line-height:1.28}.edg h3,.edg .erg h3{font-size:18px}.edg-heading{padding-bottom:24px}.edg-grid,.edg-split,.edg-definitions,.edg .erg-two{grid-template-columns:minmax(0,1fr)}.edg-panel,.edg .erg-card{padding:20px}.edg-section,.edg .erg-section{padding:26px 0}.edg-size-code{padding:20px 10px;gap:10px}.edg-size-code strong{font-size:30px}.edg-size-code span{font-size:11px}.edg .erg-slip-table{font-size:14px}.edg .erg-slip-table th,.edg .erg-slip-table td{padding:14px 4px}.edg .erg-slip-table th:first-child{width:26%;padding-left:10px}.edg .erg-slip-table thead th{font-size:10px}.edg .erg-slip-table tbody th{font-size:11px}.edg .erg-definitions>div{grid-template-columns:minmax(0,1fr)}.edg .erg-example-grid{grid-template-columns:minmax(0,1fr)}.edg .erg-eye dt{font-size:14px}.edg .erg-eye dd{font-size:16px}.edg-care li{padding:20px 20px 20px 54px}.edg-care li:before{left:20px;top:23px}.efg-measurement-desktop{display:none}.efg-measurement-panels{display:grid;grid-template-columns:minmax(0,1fr);gap:16px;width:100%}.efg-measurement-panel{position:relative;width:100%;aspect-ratio:1774/990;overflow:hidden;background:#fff}.efg-measurement-panel img{position:absolute;display:block;top:0;left:0;width:300%;max-width:none;height:auto;transform:translateY(-27.62%)}.efg-measurement-panel--2 img{left:-100%}.efg-measurement-panel--3 img{left:-200%}}

.edg-index-figure{max-width:620px;margin:0 auto 28px}.edg-index-figure img{display:block;width:100%;height:auto}.edg-index-figure figcaption{font-size:12px;line-height:1.5;color:var(--edg-muted);margin-top:10px}
.edg-face-list{display:grid;gap:18px}.edg-face-row{display:grid;grid-template-columns:200px minmax(0,1fr);gap:28px;align-items:center;padding:24px;background:var(--edg-soft);border-radius:4px}.edg-face-row p{font-size:15px;color:var(--edg-muted)}.edg-face-panel{width:100%;aspect-ratio:1;background:white}.edg-face-panel img{width:100%;height:auto;object-fit:contain;display:block}.edg-face-actions{display:flex;flex-wrap:wrap;gap:12px 24px;margin-top:24px}.edg-face-actions a{font-size:14px;font-weight:650}@media(max-width:599px){.edg-face-row{grid-template-columns:minmax(0,1fr);gap:20px;padding:20px}.edg-face-panel{max-width:200px;margin:auto}}
.edg-detail-figure{margin:20px 0}.edg-detail-figure img{display:block;width:100%;height:auto;object-fit:contain}.edg-detail-figure:last-child{margin-bottom:0}
.edg-measurement-list{display:grid;gap:18px;margin:18px 0}.edg-measurement-row{display:grid;grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:28px;align-items:center}.edg-measurement-row .edg-detail-figure{margin:0}.edg-measurement-row p{font-size:15px;color:var(--edg-muted)}.edg .edg-pd-steps{list-style:decimal outside;padding-left:26px;margin:20px 0}.edg .edg-pd-steps>li{display:list-item;list-style:decimal outside;padding:0 0 0 5px;margin:0 0 16px}.edg .edg-pd-steps>li::marker{font-weight:650;color:var(--edg-accent)}.edg .edg-pd-reminder{margin:22px 0;padding:18px 20px;background:var(--edg-soft);border-left:3px solid var(--edg-accent);font-size:14px}@media(max-width:599px){.edg-measurement-row{grid-template-columns:minmax(0,1fr);gap:20px}}