[hidden]{display:none!important}
.table-scroll table .range-cell{font-size:12px;font-weight:600;color:var(--ink);white-space:nowrap}.table-scroll tr.is-current .range-cell{color:var(--blue)}
.skip-link{position:absolute;left:16px;top:-100px;background:white;color:var(--ink);padding:12px;z-index:10}.skip-link:focus{top:10px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.keyway-hero{display:flex;justify-content:space-between;align-items:center;gap:24px;padding-top:29px;padding-bottom:30px}.keyway-hero .page-eyebrow{font-size:11px;margin-bottom:9px;letter-spacing:.16em}.keyway-hero h1{font-size:32px;letter-spacing:-.03em;margin:0 0 8px}.keyway-hero h1 span{color:#759bce}.keyway-hero p{color:#a0b3c6;font-size:14px;margin:0}.standard-stamp{padding:4px 0 4px 24px;border-left:1px solid #314456;display:grid;gap:7px;font-size:13px;font-family:var(--mono)}.stamp-line{display:flex;gap:24px;justify-content:space-between}.stamp-line b{font:12px var(--font);color:#a0b3c6}.standard-stamp small{color:#9bb0c5;font:11px var(--font);margin-top:3px}.status-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#40be9b;margin-right:7px}
.topbar .account-button{color:#d5e3f5;background:#15283b;border:1px solid #38506b;border-radius:6px;padding:9px 13px;font-size:13px;white-space:nowrap}
.keyway-main{flex:1;padding-bottom:48px}.breadcrumb{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--muted);padding:20px 0}.breadcrumb strong{font-weight:500;color:var(--ink)}.breadcrumb .source-jump{margin-left:auto;color:var(--blue)}
.lookup-workbench{display:grid;grid-template-columns:272px minmax(0,1fr);background:#fff;border:1px solid var(--line);border-radius:9px;box-shadow:0 8px 24px #213b5610;overflow:hidden;position:relative}.lookup-workbench:before{position:absolute;top:0;left:0;width:96px;height:3px;background:var(--orange);content:''}.query-panel{padding:24px;border-right:1px solid var(--line-soft);background:#fbfcfd;min-width:0}.panel-kicker{font-size:13px;font-weight:750;display:flex;align-items:center;gap:9px}.panel-kicker>span{font:11px var(--mono);color:var(--subtle)}.panel-kicker small{font-size:11px;font-weight:400;color:var(--muted);margin-left:auto}
.mode-switch{display:flex;margin:22px 0;background:#edf2f7;padding:3px;border-radius:6px}.mode-switch button{flex:1;border:0;padding:8px 4px;color:var(--muted);background:transparent;border-radius:4px;font-size:12px;white-space:nowrap}.mode-switch [aria-pressed=true]{color:var(--blue);background:white;box-shadow:0 1px 4px #213b5614;font-weight:700}
.input-label{font-size:13px;font-weight:650;display:block;margin:0 0 10px}.input-label i{font-family:Georgia,serif;font-size:15px;margin-left:6px;font-weight:400}.diameter-input{display:flex;align-items:center;gap:10px;border:1px solid #a7bde1;background:#fff;border-radius:6px;padding:9px 13px;box-shadow:0 0 0 3px #2868f009}.diameter-input:focus-within{border-color:var(--blue);box-shadow:0 0 0 3px #2868f01a}.diameter-input>span:first-child{font-size:27px;color:#96a5b5}.diameter-input>span:last-child{font:13px var(--mono);color:var(--muted)}.diameter-input input{font:600 32px var(--mono);border:0;outline:0;width:100%;min-width:0;background:transparent;color:#152b44;padding:0;line-height:1.5}.diameter-input:has([aria-invalid=true]){border-color:var(--red)}.field-help{font-size:11px;line-height:1.7;color:var(--muted);margin:10px 0}.quick-values{display:flex;gap:7px}.quick-values button{flex:1;padding:4px;border:1px solid #dce4ed;background:#fff;border-radius:4px;color:#516375;font:12px var(--mono)}.quick-values button:hover{border-color:var(--blue);color:var(--blue)}#keySpec{width:100%;border:1px solid #a7bde1;border-radius:6px;padding:13px 10px;font:18px var(--mono);background:#fff;color:var(--ink)}.input-error{font-size:12px;color:#b03629;margin:12px 0}
.fit-options{border:0;padding:0;margin:24px 0 0}.fit-options legend{font-size:13px;font-weight:650;margin-bottom:11px}.fit-options label{display:flex;align-items:center;gap:10px;padding:9px 0;cursor:pointer}.fit-options input{accent-color:var(--blue);width:15px;height:15px;margin:0}.fit-options label>span{font-size:12px;font-weight:600;flex:1;display:flex;justify-content:space-between;align-items:center;gap:8px}.fit-options small{font-size:10px;color:var(--muted);font-weight:400}.query-note{font-size:11px;line-height:1.8;color:var(--muted);border-top:1px solid var(--line-soft);padding-top:18px;margin:18px 0 0}.query-note strong{display:block;font-size:12px;font-weight:600;color:#586a7e;margin-bottom:4px}
.result-panel{padding:22px 26px;min-width:0}.result-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px}.result-toolbar>div:last-child{display:flex;gap:16px;align-items:center}.text-button{background:none;border:0;font-size:12px;color:var(--blue);padding:6px 0}.copy-button{background:#f0f5ff;border:1px solid #cbdafa;border-radius:5px;padding:7px 12px;color:var(--blue);font-size:12px;font-weight:600}.text-button:disabled,.copy-button:disabled{color:#95a0ad;border-color:#dce4ec;cursor:not-allowed}.result-metrics{display:grid;grid-template-columns:1.25fr 1fr 1fr 1fr;margin:20px 0 18px;padding-bottom:20px;border-bottom:1px solid var(--line-soft);gap:18px}.metric{padding-left:18px;border-left:1px solid var(--line-soft);min-width:0}.metric:first-child{padding-left:0;border-left:0}.metric-label{font-size:11px;color:var(--muted)}.metric-value{font:600 28px var(--mono);line-height:1.5;color:#162b45}.metric:first-child .metric-value{color:var(--blue)}.metric-value small{font:11px var(--font);color:var(--muted);margin-left:5px}.metric-sub{font-size:10px;color:var(--muted)}.metric-sub b{font-weight:500;color:#35587d}.metric.r-metric .metric-value{font-size:21px;line-height:2}
.drawing-heading{display:flex;align-items:center;justify-content:space-between;gap:8px}.drawing-heading h2{font-size:13px;margin:0}.drawing-legend{display:flex;gap:14px;font-size:10px;color:var(--muted)}.drawing-legend span{display:flex;align-items:center;gap:5px}.drawing-legend i{display:inline-block;width:12px;height:2px}.legend-part{background:#556c80}.legend-dimension{background:var(--blue)}.diagram-pair{display:grid;grid-template-columns:1fr 1fr .8fr;gap:10px;padding:5px 0 12px}.diagram-pair figure{margin:0;min-width:0}.diagram-pair svg{display:block;width:100%;height:auto;max-height:245px}.diagram-pair figcaption{text-align:center;display:grid;gap:3px}.diagram-pair figcaption strong{font-size:12px;font-weight:650}.diagram-pair figcaption span{font-size:10px;color:var(--muted)}.part-outline{stroke:#526679;stroke-width:1.7;stroke-linejoin:round}.extension{stroke:#859bbb;stroke-width:.8}.dimension{fill:none;stroke:#2868f0;stroke-width:1}.dim-arrow{fill:#2868f0}.dim-label{fill:#2868f0;font:italic 16px Georgia,'Times New Roman',serif}.centerline{stroke:#90a6ba;stroke-width:.8;stroke-dasharray:12 3 2 3}.drawing-secondary{fill:#6c7f91;font:11px 'Segoe UI','Microsoft YaHei',sans-serif}.key-section{fill:#fbede0;stroke:#c47831;stroke-width:1.7}.key-label{fill:#94541c;font:600 19px Consolas,monospace}.drawing-foot{display:flex;justify-content:space-between;gap:8px;color:#718093;font-size:10px;padding:11px 0 14px;border-bottom:1px solid var(--line-soft)}
.result-details{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;padding-top:17px}.tolerance-block h3{font-size:12px;font-weight:650;margin:0 0 9px;display:flex;justify-content:space-between;gap:7px}.tolerance-block h3 span{font:600 12px var(--mono);color:var(--blue)}.tolerance-line{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:11px;margin-top:3px}.tolerance-line b{font:12px var(--mono);color:#243b55}.tolerance-limits{font:12px var(--mono);color:#253e5b;background:#f2f6fa;padding:5px 8px;margin-top:9px;border-radius:3px;text-align:center}.measure-note{font-size:10px;color:var(--muted);margin:14px 0 0;line-height:1.8}.measure-note b{font-weight:500;color:#304d6e}.empty-state{padding:90px 24px;text-align:center;color:var(--muted)}.empty-state h2{font-size:20px;color:#30465e}.empty-state p{font-size:13px}.empty-symbol{font:48px var(--mono);color:#8ea7be}
.table-section{margin-top:30px;scroll-margin-top:18px}.keyway-main .section-heading{margin-bottom:16px}.keyway-main .section-title{font-size:19px}.keyway-main .section-note{font-size:12px}.table-topnote{display:flex;justify-content:space-between;gap:10px;padding:12px 17px;background:#eaf0f7;border:1px solid var(--line);border-bottom:0;border-radius:7px 7px 0 0;font-size:11px;color:#536c85}.table-scroll{max-height:480px;overflow:auto;border:1px solid var(--line);border-radius:0 0 7px 7px;scroll-padding-top:64px;overscroll-behavior:contain;background:white}.table-scroll table{width:100%;border-collapse:separate;border-spacing:0;font-size:12px;min-width:820px;text-align:left}.table-scroll th{position:sticky;top:0;background:#f9fbfd;z-index:1;border-bottom:1px solid var(--line);padding:11px 16px;font-weight:600}.table-scroll th span{display:block;color:var(--muted);font:10px var(--mono);margin-top:4px}.table-scroll td{padding:9px 16px;border-bottom:1px solid var(--line-soft);font-family:var(--mono)}.table-scroll tr:last-child td{border-bottom:0}.table-scroll tbody tr:nth-child(even){background:#fbfcfe}.table-scroll tr.is-current,.table-scroll tbody tr.is-current:nth-child(even){background:#edf4ff}.table-scroll tr.is-current td:first-child{box-shadow:inset 3px 0 var(--blue)}.spec-row-button{font:600 13px var(--mono);color:#223c5b;padding:5px 9px;border:1px solid #d8e2ed;border-radius:4px;background:#fff;white-space:nowrap}.is-current .spec-row-button{border-color:#a8c2f6;color:var(--blue)}.table-scroll td .deviations{display:inline-grid;grid-template-rows:1fr 1fr;font-size:10px;line-height:1.2;vertical-align:middle;margin-left:7px;color:#546d87}.table-scroll .range-cell{font-size:11px;color:#6c7d90}.table-note{font-size:11px;line-height:1.8;color:var(--muted);margin:10px 0 0}
.reference-section{margin-top:34px}.reference-grid{display:grid;grid-template-columns:1fr 1fr;gap:42px;border-top:1px solid var(--line);padding-top:20px;font-size:12px;color:var(--muted);line-height:1.85}.reference-grid h3{font-size:13px;color:var(--ink);margin:0 0 12px}.reference-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}.reference-grid li{display:grid}.reference-grid a{color:#235daf;text-decoration:underline;text-decoration-color:#bdcce1;text-underline-offset:3px}.reference-grid p{margin:0 0 10px}.reference-grid summary{color:#42668c;cursor:pointer;margin-bottom:10px}.keyway-footer{display:flex;align-items:center;gap:24px;padding-top:24px;padding-bottom:24px;color:#8da0b4;font-size:12px}.keyway-footer a{margin-left:auto;color:#c9d8e7}.keyway-toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);padding:12px 20px;background:#14283b;color:#fff;border-radius:6px;box-shadow:0 8px 25px #09213d22;font-size:13px;z-index:25;max-width:90vw}#copyFallback{padding:20px;background:#fff;border:1px solid var(--line);margin-top:20px;border-radius:6px}#copyFallback label{display:block;font-size:13px;margin-bottom:10px}#copyText{width:100%;font:12px/1.8 var(--mono);padding:12px;border:1px solid var(--line);resize:vertical}#closeCopy{margin-top:10px;padding:6px 14px;border:1px solid var(--line);background:#fff;border-radius:4px}
@media(min-width:1800px){.keyway-main,.keyway-hero{max-width:1440px}}
@media(max-width:1150px){.topbar-inner{grid-template-columns:auto 1fr auto;gap:24px}.nav-main{gap:18px;justify-content:center}.nav-main a{font-size:12px}.brand{font-size:17px}.lookup-workbench{grid-template-columns:244px minmax(0,1fr)}.query-panel{padding:22px 18px}.result-panel{padding:22px 20px}.metric-value{font-size:24px}.result-metrics{gap:12px}.metric{padding-left:12px}.metric.r-metric .metric-value{font-size:18px}.diagram-pair{grid-template-columns:1fr 1fr}.diagram-pair figure:last-child{display:grid;grid-template-columns:100px 1fr;align-items:center;grid-column:1/-1;background:#fafbfc;padding:0 12px;border-radius:4px}.diagram-pair figure:last-child svg{height:96px;width:126px}.diagram-pair figure:last-child figcaption{text-align:left;margin-left:30px}.result-details{gap:14px}.tolerance-block h3{flex-wrap:wrap}.fit-options label>span{display:block}.fit-options small{display:block;margin-top:2px}}
@media(max-width:780px){.container{width:calc(100% - 32px)}.topbar{height:auto;min-height:64px}.topbar-inner{display:flex;flex-wrap:wrap;gap:0;justify-content:space-between;padding:14px 0 0}.brand{font-size:17px}.brand-mark{width:28px;height:28px}.topbar .account-button{font-size:11px;padding:7px 10px}.nav-main{order:3;width:100%;justify-content:flex-start;gap:24px;overflow:auto;margin-top:6px}.nav-main a{padding:12px 0}.keyway-hero{padding-top:24px;padding-bottom:24px;align-items:flex-start}.keyway-hero h1{font-size:27px}.standard-stamp{font-size:11px;padding-left:14px;gap:6px}.stamp-line{gap:10px}.stamp-line b{display:none}.standard-stamp small{font-size:10px}.keyway-hero p{font-size:12px;max-width:250px}.breadcrumb .source-jump{font-size:10px}.lookup-workbench{grid-template-columns:1fr}.query-panel{border-right:0;border-bottom:1px solid var(--line-soft);padding:20px}.mode-switch{margin:15px 0}.fit-options{margin-top:18px;display:flex;gap:12px}.fit-options legend{margin-bottom:4px}.fit-options label{flex:1;padding:8px 0;gap:7px}.fit-options small{font-size:9px}.query-note{margin-top:10px;padding-top:12px}.query-note strong{display:inline;margin-right:6px}.result-panel{padding:20px}.result-metrics{margin-top:18px}.diagram-pair{grid-template-columns:1fr 1fr}.result-details{gap:18px}.keyway-main .section-heading{gap:10px;align-items:flex-start}.keyway-main .section-title-wrap{display:block}.keyway-main .section-note{display:block;margin-top:6px}.table-topnote{font-size:10px;padding:10px 12px}.table-topnote span:last-child{display:none}.reference-grid{grid-template-columns:1fr;gap:20px}.keyway-footer{flex-wrap:wrap;gap:8px 16px}.keyway-footer a{margin-left:0;width:100%}.keyway-footer .footer-brand{font-size:16px}}
@media(max-width:500px){.keyway-hero{display:block}.keyway-hero h1{font-size:27px}.standard-stamp{display:flex;flex-wrap:wrap;align-items:center;gap:6px 15px;border:0;padding:15px 0 0}.standard-stamp small{width:100%}.keyway-hero p{max-width:none}.breadcrumb{font-size:10px;gap:7px;padding:16px 0}.breadcrumb .source-jump{margin-left:auto;font-size:9px}.result-panel{padding:18px 16px}.result-toolbar>div:last-child{gap:12px}.result-toolbar .text-button{font-size:11px}.panel-kicker{font-size:12px}.result-metrics{grid-template-columns:1fr 1fr;gap:16px 12px}.metric:nth-child(3){border-left:0;padding-left:0}.metric-value{font-size:27px}.metric.r-metric .metric-value{font-size:22px;line-height:1.8}.metric-sub{font-size:10px}.diagram-pair{grid-template-columns:1fr;gap:15px}.diagram-pair figure:last-child{display:block;grid-column:auto;padding:0;background:#fff}.diagram-pair figure:last-child svg{width:100%;height:190px}.diagram-pair figure:last-child figcaption{text-align:center;margin:0}.diagram-pair svg{height:245px}.drawing-foot{display:block;line-height:1.9}.drawing-foot span{display:block}.drawing-legend{gap:8px;font-size:9px}.result-details{grid-template-columns:1fr;gap:15px}.tolerance-block{display:grid;grid-template-columns:1fr 1fr;column-gap:20px}.tolerance-block h3{grid-column:1/-1;margin-bottom:5px}.tolerance-limits{grid-column:1/-1;margin-top:6px}.keyway-main .section-title{font-size:18px}.keyway-main .section-note{font-size:10px}.table-section .section-heading{align-items:center}.table-section .text-button{white-space:nowrap;font-size:11px}.table-scroll{max-height:420px}.query-panel{padding:20px 16px}.fit-options{gap:8px}.fit-options label>span{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}