:root{
  --ink:#15171C;
  --body:#2C3038;
  --muted:#71767F;
  --line:#E3E4E7;
  --line-soft:#EEEEF0;
  --paper:#FFFFFF;
  --soft:#F7F6F3;
  --accent:#C0392B;
  --teal:#0F6E6A;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
::selection{background:rgba(192,57,43,.14)}

/* header */
.site-header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:100}
.site-header__in{max-width:1180px;margin:0 auto;padding:0 24px;height:62px;display:flex;align-items:center;gap:32px}
.logo{display:flex;align-items:baseline;gap:9px;flex-shrink:0}
.logo b{font-family:var(--serif);font-size:19px;letter-spacing:.02em}
.logo span{font-size:9.5px;letter-spacing:.18em;color:var(--muted);text-transform:uppercase}
.nav{display:flex;gap:26px;margin-left:auto;font-size:13.5px;color:var(--body)}
.nav a{padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover,.nav a.on{color:var(--accent);border-bottom-color:var(--accent)}
.hbtn{font-size:13px;padding:9px 18px;background:var(--ink);color:#fff;border-radius:2px;letter-spacing:.02em;flex-shrink:0}
.hbtn:hover{background:var(--accent)}
@media(max-width:860px){.nav{display:none}.site-header__in{height:56px;gap:12px;padding:0 16px}.logo span{display:none}.logo b{font-size:17.5px}.hbtn{margin-left:auto;padding:8px 13px;font-size:12.5px}}

/* layout */
.article{max-width:760px;margin:0 auto;padding:0 24px}
@media(max-width:640px){.article{padding:0 18px}}

/* breadcrumb + head */
.crumb{max-width:760px;margin:0 auto;padding:22px 24px 0;font-size:12px;color:var(--muted);letter-spacing:.01em}
.crumb a:hover{color:var(--accent)}
.crumb i{font-style:normal;margin:0 7px;color:#C9CBD0}
.head{max-width:760px;margin:0 auto;padding:26px 24px 0}
h1{font-family:var(--serif);font-weight:700;font-size:clamp(28px,4vw,40px);line-height:1.24;letter-spacing:-.015em;margin:0 0 20px;text-wrap:balance}
.meta{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;font-size:12.5px;color:var(--muted);padding:16px 0 22px;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums}
.meta b{font-weight:600;color:var(--body)}
@media(max-width:640px){.crumb{padding:16px 18px 0}.head{padding:20px 18px 0}h1 br{display:none}}

/* body */
.body{padding:34px 0 0}
.body p{margin:0 0 20px;color:var(--body);font-size:17px;line-height:1.82}
.body p.lead{font-size:18.5px;line-height:1.72;color:var(--ink)}
.body p.lead strong{font-weight:600;background:linear-gradient(180deg,transparent 64%,rgba(192,57,43,.16) 64%)}

/* stage strip */
.strip-cap{font-size:11px;letter-spacing:.14em;color:var(--muted);margin:30px 0 10px;padding-bottom:8px;border-bottom:1px solid var(--line);text-transform:uppercase}
.strip-cap b{color:var(--ink);font-size:12.5px;letter-spacing:.04em;font-weight:700}
.stages{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);margin:0 0 34px;
}
.stages div{background:#fff;padding:16px 14px}
.stages b{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;color:var(--accent);margin-bottom:7px}
.stages span{display:block;font-size:14px;font-weight:700;line-height:1.35}
.stages em{display:block;font-style:normal;font-size:11.5px;color:var(--muted);margin-top:5px;letter-spacing:.01em}
@media(max-width:640px){.stages{grid-template-columns:repeat(2,1fr)}}

/* numbered steps */
ol.steps{list-style:none;margin:10px 0 0;padding:0;counter-reset:s}
ol.steps > li{counter-increment:s;position:relative;padding:30px 0 6px;border-top:1px solid var(--line-soft)}
ol.steps > li:first-child{border-top:0;padding-top:6px}
ol.steps > li::before{
  content:counter(s) ".";position:absolute;left:0;top:30px;
  font-family:var(--mono);font-size:15px;font-weight:700;color:var(--accent);letter-spacing:.02em;
}
ol.steps > li:first-child::before{top:6px}
ol.steps h2{font-family:var(--sans);font-weight:700;font-size:21px;line-height:1.4;letter-spacing:-.01em;margin:0 0 12px 0;padding-left:46px;text-wrap:balance}
ol.steps h2 em{font-style:normal;color:var(--accent)}
ol.steps .txt{padding-left:46px}
ol.steps .txt p{font-size:16.5px;line-height:1.8;margin:0 0 16px}
ol.steps .txt p:last-child{margin-bottom:0}
.chip{
  display:inline-block;font-size:10px;letter-spacing:.1em;color:var(--muted);text-transform:uppercase;
  border:1px solid var(--line);padding:1px 7px;border-radius:1px;margin-left:8px;
  vertical-align:2px;font-weight:600;
}
.tagline{display:inline-flex;align-items:center;gap:8px;margin-top:2px;font-size:11.5px;letter-spacing:.02em;color:var(--muted)}
.tagline::before{content:"";width:14px;height:1px;background:var(--line);display:inline-block}
.checklist{margin:0 0 18px;padding:0;list-style:none}
.checklist li{position:relative;padding-left:20px;font-size:15.5px;line-height:1.72;color:var(--body);margin-bottom:6px}
.checklist li::before{content:"";position:absolute;left:2px;top:9px;width:6px;height:6px;border:1.5px solid var(--accent);border-radius:50%}
.checklist b{font-weight:600;color:var(--ink)}
@media(max-width:640px){
  ol.steps > li{padding-top:26px}
  ol.steps > li::before{top:26px;font-size:13px}
  ol.steps h2{font-size:18.5px;padding-left:32px}
  ol.steps .txt{padding-left:32px}
  .body p{font-size:16px}
  .chip{display:block;margin:6px 0 0;width:fit-content}
}

/* figures */
figure{margin:26px 0 30px;padding:0}
ol.steps .txt > figure{margin-left:-46px}
ol.steps > li > figure{margin-left:-46px}
figure .frame{border:1px solid var(--line);background:#FCFBF9;padding:22px 20px 16px;border-radius:2px}
figcaption{font-size:12px;color:var(--muted);line-height:1.7;margin-top:12px}
figcaption b{color:var(--body);font-weight:600}
.fig-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;font-size:11.5px;color:var(--muted);margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--line-soft)}
.fig-head b{color:var(--ink);font-weight:700;font-size:12.5px;letter-spacing:.01em}
svg{display:block;width:100%;height:auto;overflow:visible}
.tick{font-family:var(--sans);font-size:10.5px;fill:var(--muted);font-variant-numeric:tabular-nums}
.lab{font-family:var(--sans);font-size:11.5px;fill:var(--body);font-weight:600}
.val{font-family:var(--sans);font-size:11.5px;font-weight:700;fill:var(--ink);font-variant-numeric:tabular-nums}
.gl{stroke:var(--line);stroke-width:1;stroke-dasharray:2 4}
.ax{stroke:#C9CBD0;stroke-width:1}
.note{font-family:var(--sans);font-size:10px;fill:var(--muted)}

/* table */
.tbl-wrap{margin:24px 0 30px;overflow-x:auto}
table.tbl{width:100%;border-collapse:collapse;font-size:13.5px;min-width:520px;table-layout:fixed}
table.tbl caption{caption-side:top;text-align:left;font-size:11.5px;color:var(--muted);padding-bottom:10px;letter-spacing:.01em}
table.tbl th{text-align:left;font-size:11px;letter-spacing:.06em;color:var(--muted);font-weight:700;padding:0 12px 9px 0;border-bottom:1.5px solid var(--ink)}
table.tbl td{padding:11px 12px 11px 0;border-bottom:1px solid var(--line-soft);line-height:1.6;vertical-align:top;color:var(--body)}
table.tbl td:first-child{font-weight:600;color:var(--ink)}
table.tbl tr:hover td{background:#FCFBF9}

/* summary */
.summary{margin:44px 0 0;padding:26px 24px;background:var(--soft);border-left:3px solid var(--ink);border-radius:2px}
.summary h3{font-size:11.5px;letter-spacing:.16em;color:var(--muted);text-transform:uppercase;margin:0 0 14px;font-weight:700}
.flow{display:flex;flex-wrap:wrap;align-items:center;gap:8px 9px;font-size:13.5px;font-weight:600}
.flow span{color:var(--body)}
.flow i{font-style:normal;color:var(--accent);font-weight:700;margin-right:6px}
.flow .pair{white-space:nowrap}
.flow span.now{color:var(--accent)}

/* closing */
.closing{margin:38px 0 0}
.closing p{font-size:16.5px}
.contact-line{margin-top:26px;padding-top:22px;border-top:1px solid var(--line-soft);font-size:14px;color:var(--muted)}
.contact-line a{color:var(--accent);border-bottom:1px solid rgba(192,57,43,.35)}

/* cta */
.cta{max-width:760px;margin:56px auto 0;background:var(--ink);color:#fff;padding:38px 36px;border-radius:2px;scroll-margin-top:84px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta h4{margin:0 0 8px;font-size:23px;font-weight:700;letter-spacing:-.01em;line-height:1.35}
.cta p{margin:0;font-size:13.5px;color:rgba(255,255,255,.62);max-width:520px;line-height:1.7}
.cta .acts{display:flex;gap:10px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 22px;font-size:13.5px;border-radius:2px;letter-spacing:.02em;border:1px solid rgba(255,255,255,.3);color:#fff}
.btn--solid{background:var(--accent);border-color:var(--accent)}
.btn:not(.btn--solid):hover{background:rgba(255,255,255,.1)}
.btn--solid:hover{background:#A93023}
@media(max-width:820px){.cta{margin:44px 18px 0;padding:30px 24px;max-width:none}.cta h4{font-size:20px}}

/* footer */
.footer{border-top:1px solid var(--line);margin-top:56px;padding:40px 0 34px;background:#FCFCFB}
.footer__in{max-width:1180px;margin:0 auto;padding:0 24px;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;font-size:12px;color:var(--muted)}
.footer__in nav{display:flex;gap:20px;flex-wrap:wrap}
.footer__in a:hover{color:var(--accent)}
.src-note{max-width:760px;margin:44px auto 0;padding:0 24px;font-size:12px;line-height:1.8;color:var(--muted)}
.src-note b{color:var(--body)}
@media(max-width:640px){.src-note{padding:0 18px}}
@media(max-width:640px){
  figure .frame{overflow-x:auto;-webkit-overflow-scrolling:touch;padding:16px 12px 12px}
  figure svg{min-width:600px}
  figcaption{font-size:11.5px}
  .fig-head{font-size:11px}
  figure::after{content:"← scroll the chart →";display:block;font-size:10.5px;color:var(--muted);margin-top:8px;letter-spacing:.04em}
  .tbl-wrap{overflow-x:auto}
  table.tbl{min-width:0;display:block}
  table.tbl caption{display:block;padding-bottom:8px}
  table.tbl thead{display:none}
  table.tbl tbody{display:block}
  table.tbl tr{display:block;padding:13px 0 10px;border-bottom:1px solid var(--line-soft)}
  table.tbl td{display:block;border:0;padding:0 0 3px;font-size:13.5px}
  table.tbl td:first-child{font-size:14px;margin-bottom:3px}
  table.tbl td::before{color:var(--muted);font-size:11px;font-weight:600;letter-spacing:.04em;text-transform:uppercase}
  .tbl--q td:nth-child(2)::before{content:"Value · "}
  .tbl--q td:nth-child(3)::before{content:"Impact · "}
  .tbl--uv td:nth-child(2)::before{content:"UV direct · "}
  .tbl--uv td:nth-child(3)::before{content:"Screen · "}
  .tbl--cut td:nth-child(2)::before{content:"Laser · "}
  .tbl--cut td:nth-child(3)::before{content:"CNC · "}
}