@font-face{font-family:"Corrtest Display";src:url("assets/fonts/corrtest-display.woff2") format("woff2");font-display:swap;font-weight:400}
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*{box-sizing:border-box}
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img{display:block;width:100%;height:auto}
a{color:inherit}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
::selection{background:var(--cyan);color:var(--graphite)}
html{scrollbar-color:var(--cyan) var(--graphite)}
*{scrollbar-width:thin;caret-color:var(--cyan)}
::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--graphite)}::-webkit-scrollbar-thumb{background:var(--cyan);border:2px solid var(--graphite)}
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.skip-link:focus{top:18px}
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.site-nav{display:flex;gap:34px}.site-nav a{text-decoration:none;font-size:14px}.site-nav a:hover{color:var(--cyan-light)}
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.opening{display:grid;grid-template-columns:80px minmax(0,1.15fr) minmax(330px,.85fr);gap:clamp(28px,5vw,84px);padding:110px clamp(22px,8vw,130px);border-bottom:1px solid #c7c2b7}.opening h2,.protocol-heading h2,.contact h2{font-family:Georgia,"Songti SC",serif;font-size:clamp(38px,4.2vw,70px);line-height:1.12;margin:0 0 28px;letter-spacing:-.035em}.opening-copy p{font-size:16px;max-width:680px}.opening-ledger{margin:0;border-top:2px solid var(--ink)}.opening-ledger div{padding:18px 0;border-bottom:1px solid #bdb8ad}.opening-ledger dt{font-weight:700;margin-bottom:5px}.opening-ledger dd{margin:0;color:#5f6464;font-size:14px}
.report-head{display:grid;grid-template-columns:80px 1fr;gap:clamp(28px,5vw,84px);padding:78px clamp(22px,8vw,130px)}.report-head h2,.applications-heading h2{font-family:Georgia,"Songti SC",serif;font-size:clamp(38px,4vw,62px);margin:0 0 12px;line-height:1.1}.report-head p{margin:0;color:#aeb8bb}.product-band{display:grid;grid-template-columns:minmax(320px,.85fr) minmax(0,1.6fr);min-height:630px}.product-band.reverse{grid-template-columns:minmax(0,1.6fr) minmax(320px,.85fr)}.product-band.reverse .product-copy{order:2}.product-band.reverse figure{order:1}.product-band-paper{background:var(--paper);color:var(--ink)}.product-band-dark{background:#0f2228;color:var(--white)}.product-copy{padding:clamp(56px,7vw,110px);display:flex;flex-direction:column;justify-content:center;align-items:flex-start}.product-copy h3{font-family:Georgia,"Songti SC",serif;font-size:clamp(36px,4vw,64px);line-height:1.12;margin:20px 0 28px}.product-copy p{max-width:520px;color:inherit;opacity:.78;margin-bottom:30px}.product-band figure{margin:0;min-height:520px;overflow:hidden}.product-band figure img{height:100%;object-fit:cover}
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.method-stage{display:grid;grid-template-columns:1.6fr .8fr;min-height:620px}.method-stage-paper{background:var(--paper);color:var(--ink)}.method-stage-dark{background:var(--graphite);color:var(--white)}.method-stage figure{margin:0;overflow:hidden}.method-stage figure img{height:100%;object-fit:cover}.method-copy{padding:clamp(52px,7vw,110px);display:flex;flex-direction:column;justify-content:center}.method-copy h3{font-family:Georgia,"Songti SC",serif;font-size:clamp(38px,4vw,66px);margin:20px 0 24px}.method-copy p{opacity:.75}.method-stage-paper .method-copy>span{color:#00788f}
.corrosion{display:grid;grid-template-columns:minmax(360px,.8fr) minmax(0,1.3fr);min-height:760px}.corrosion-copy{padding:clamp(70px,8vw,130px);display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.corrosion-copy h2{font-family:Georgia,"Songti SC",serif;font-size:clamp(42px,5vw,76px);line-height:1.08;margin:22px 0 30px}.corrosion-copy p{color:#b7c0c2;margin:0 0 38px}.corrosion figure{margin:0;overflow:hidden}.corrosion figure img{height:100%;object-fit:cover}
.applications{padding:110px clamp(22px,8vw,130px)}.applications-heading{display:grid;grid-template-columns:80px 1fr;gap:clamp(28px,5vw,84px);margin-bottom:55px}.applications-heading p{color:var(--muted)}.application-figure{margin:0;border-top:2px solid var(--ink);border-bottom:2px solid var(--ink)}.application-list{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid #aaa499}.application-list span{padding:22px 12px;border-right:1px solid #aaa499;font-size:14px}.application-list span:nth-child(4n){border-right:0}
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/* Impeccable finish: scientific-report type, interaction and signal system */
.hero h1,.opening h2,.protocol-heading h2,.contact h2,.report-head h2,.applications-heading h2,.product-copy h3,.method-copy h3,.corrosion-copy h2{font-family:"Corrtest Display","Microsoft YaHei",sans-serif;font-weight:400;letter-spacing:-.025em}
.hero h1{font-size:clamp(54px,6.7vw,96px);letter-spacing:-.035em}.hero-copy>p{max-width:610px;font-size:18px;color:#d4dadd}
.opening{grid-template-columns:minmax(0,1.15fr) minmax(330px,.85fr);gap:clamp(40px,7vw,110px)}.report-head{display:block}.protocol-heading{grid-template-columns:minmax(0,1fr) minmax(300px,.65fr);gap:clamp(40px,7vw,110px)}.applications-heading{display:block}
.opening-ledger dd{color:var(--muted)}.report-head p{color:#bcc5c7}.product-copy p{opacity:.84}.method-copy p{opacity:.82}.corrosion-copy p{color:#c1c9ca}
.button{border:1px solid transparent;transition:background-color .2s,color .2s,border-color .2s,transform .2s}.button:hover{transform:translateY(-2px)}.button:active{transform:translateY(0)}.button-light:hover{background:var(--cyan-light)}.button-cyan:hover{background:var(--white)}.button-dark:hover{background:#263136;border-color:var(--cyan-light)}
.text-link{transition:color .2s,border-color .2s}.text-link:hover{color:var(--cyan-light);border-bottom-color:var(--cyan-light)}.text-link:active{opacity:.72}.text-link.dark:hover{color:var(--cyan)}
.signal-reveal{position:absolute;z-index:2;left:0;right:0;bottom:170px;width:100%;height:120px;pointer-events:none}.signal-reveal path{fill:none;stroke:var(--cyan-light);stroke-width:2;vector-effect:non-scaling-stroke;stroke-dasharray:1700;stroke-dashoffset:0;animation:signal-in 1.5s cubic-bezier(.16,1,.3,1) both}@keyframes signal-in{from{stroke-dashoffset:1700}to{stroke-dashoffset:0}}
@media (max-width:1000px){.hero{min-height:760px}.opening,.protocol-heading{grid-template-columns:1fr}.opening-ledger,.protocol-heading>p{grid-column:auto}.product-band,.product-band.reverse,.method-stage,.corrosion{grid-template-columns:1fr}.product-band.reverse .product-copy,.product-band.reverse figure{order:initial}.product-band figure{min-height:480px}.method-stage figure{min-height:500px}.corrosion figure{min-height:520px}.protocol-steps{grid-template-columns:repeat(2,1fr)}.application-list{grid-template-columns:repeat(2,1fr)}.application-list span:nth-child(2n){border-right:0}.contact{grid-template-columns:1fr}.site-nav{gap:22px}}
@media (max-width:720px){:root{--header:64px}.site-header{position:absolute;padding:0 18px}.site-nav{position:fixed;inset:0;background:var(--graphite);z-index:-1;padding:150px 32px 40px;display:flex;flex-direction:column;gap:0;opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s}.site-nav.open{opacity:1;visibility:visible;z-index:30}.site-nav a{font-family:"Corrtest Display","Microsoft YaHei",sans-serif;font-size:34px;padding:14px 0;border-bottom:1px solid #344044}.menu-toggle{display:block;position:relative;z-index:40}.menu-toggle[aria-expanded="true"] .menu-icon{border-bottom:0;transform:rotate(45deg)}.menu-toggle[aria-expanded="true"] .menu-icon:after{content:"";display:block;width:26px;border-top:1px solid currentColor;transform:rotate(90deg) translateX(-1px)}.brand strong{font-size:14px}.brand small{display:none}.brand-mark{width:38px}.hero{min-height:720px;align-items:flex-start}.hero>img{object-position:65% center}.hero-shade{background:linear-gradient(180deg,rgba(10,13,15,.88),rgba(10,13,15,.48) 70%,rgba(10,13,15,.85))}.hero-copy{margin:0;padding:138px 18px 0;width:100%}.hero h1{font-size:48px}.hero-copy>p{font-size:15px;max-width:340px}.hero-actions{align-items:flex-start;flex-direction:column;gap:22px;margin-top:30px}.hero-register{left:18px;right:auto;bottom:30px}.signal-reveal{bottom:120px;height:80px}.opening,.report-head,.applications-heading{grid-template-columns:1fr;padding-left:18px;padding-right:18px;gap:16px}.opening{padding-top:74px;padding-bottom:74px}.opening-ledger{grid-column:auto}.report-head{padding-top:55px;padding-bottom:55px}.product-band{min-height:auto}.product-copy{padding:62px 18px}.product-copy h3{font-size:38px}.product-band figure{min-height:300px}.protocol{padding-top:74px}.protocol-heading{grid-template-columns:1fr;padding:0 18px 44px;gap:16px}.protocol-heading>p{grid-column:auto}.protocol-steps{grid-template-columns:1fr;padding:0 18px 74px}.protocol-steps li,.protocol-steps li+li{padding:22px 0;border-right:0}.method-stage figure{min-height:310px}.method-copy{padding:58px 18px}.method-copy h3{font-size:40px}.corrosion-copy{padding:70px 18px}.corrosion figure{min-height:360px}.applications{padding:74px 18px}.applications-heading{padding:0}.application-figure img{min-height:260px;object-fit:cover}.application-list{grid-template-columns:1fr 1fr}.application-list span{padding:16px 8px}.contact{padding:74px 18px;gap:48px;grid-template-columns:1fr}.contact h2{font-size:44px}.contact dl div{grid-template-columns:1fr;gap:5px}.contact-form{padding:24px 18px}.site-footer{align-items:flex-start;flex-direction:column;gap:14px}.site-footer p{margin:0}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.signal-reveal path{animation:none!important}}