.checkpoint-topic-v5{--topic-navy:#092742;--topic-teal:#159b9a;--topic-teal-dark:#0d7878;--topic-text:#243746;--topic-muted:#5b6b78;--topic-light:#f3f6f8;--topic-line:#d9e2e8;color:var(--topic-text)}
.checkpoint-topic-v5 h1,.checkpoint-topic-v5 h2,.checkpoint-topic-v5 h3{color:var(--topic-navy)}
.checkpoint-topic-breadcrumbs{display:flex;flex-wrap:wrap;gap:7px;padding-top:24px;color:#667b89;font-size:14px}.checkpoint-topic-breadcrumbs a:hover{color:var(--topic-teal-dark)}
.checkpoint-topic-intro{padding:48px 0 56px}.checkpoint-topic-intro h1{margin:0 0 32px;font-size:clamp(44px,4vw,56px);line-height:1.08;letter-spacing:-.04em}.checkpoint-topic-intro-grid{display:grid;grid-template-columns:minmax(0,43%) minmax(0,1fr);gap:48px;align-items:stretch}.checkpoint-topic-intro-media{height:360px;margin:0;overflow:hidden;background:#eef4f7}.checkpoint-topic-intro-media img{display:block;width:100%;height:100%;object-fit:cover;object-position:center 42%}.checkpoint-topic-intro-copy{height:360px;display:flex;flex-direction:column}.checkpoint-topic-intro-copy>p{margin:2px 0 0;font-size:18px;line-height:1.6;text-align:justify}.checkpoint-topic-highlights{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:auto}.checkpoint-topic-highlights>div{display:flex;align-items:center;flex-direction:column;text-align:center}.checkpoint-topic-icon{width:64px;height:64px;margin-bottom:14px;display:grid;place-items:center;border-radius:50%;background:#eef7f7;color:var(--topic-navy);font-size:28px}.checkpoint-topic-highlights>div:nth-child(2) .checkpoint-topic-icon{color:var(--topic-teal)}.checkpoint-topic-highlights strong{max-width:160px;font-size:16px;line-height:1.4}
.checkpoint-topic-nav{position:sticky;top:78px;z-index:12;border-bottom:1px solid var(--topic-line);background:rgba(255,255,255,.97);backdrop-filter:blur(10px)}.admin-bar .checkpoint-topic-nav{top:110px}.checkpoint-topic-nav .container{min-height:64px;display:flex;align-items:center;gap:40px}.checkpoint-topic-nav a{min-height:64px;display:flex;align-items:center;border-bottom:3px solid transparent;color:var(--topic-navy);font-size:15px;font-weight:700}.checkpoint-topic-nav a:hover,.checkpoint-topic-nav a:focus-visible,.checkpoint-topic-nav a.is-active{border-bottom-color:var(--topic-teal);color:var(--topic-teal-dark)}.checkpoint-topic-nav .checkpoint-topic-quick{min-height:42px;margin-left:auto;padding:0 20px;border:1px solid var(--topic-teal);border-radius:22px;color:var(--topic-teal-dark)}
.checkpoint-topic-products{padding:72px 0 80px;background:var(--topic-light)}.checkpoint-topic-products h2,.checkpoint-topic-performance h2,.checkpoint-topic-related h2,.checkpoint-topic-contact h2{margin:0 0 24px;font-size:clamp(34px,3.2vw,44px);line-height:1.16}.checkpoint-topic-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-bottom:32px}.checkpoint-topic-groups button{width:100%;min-height:76px;padding:14px 18px;border:1px solid var(--topic-line);border-radius:10px;background:#fff;color:var(--topic-navy);text-align:left;box-shadow:0 4px 14px rgba(9,39,66,.04);cursor:pointer}.checkpoint-topic-groups button strong,.checkpoint-topic-groups button span{display:block}.checkpoint-topic-groups button strong{font-size:16px}.checkpoint-topic-groups button span{margin-top:3px;color:var(--topic-muted);font-size:13px}.checkpoint-topic-groups button.is-active{border-color:var(--topic-teal);background:#eef8f7;box-shadow:inset 0 -3px 0 var(--topic-teal)}.checkpoint-topic-groups button.is-active span{color:var(--topic-teal-dark)}.checkpoint-topic-groups button:focus-visible{outline:3px solid var(--topic-teal);outline-offset:3px}
.checkpoint-topic-filters{display:grid;grid-template-columns:minmax(280px,1.5fr) minmax(180px,1fr) minmax(180px,1fr) 160px;gap:12px;margin-bottom:24px;padding:16px;border-radius:10px;background:#e9eef2}.checkpoint-topic-filters label{position:relative}.checkpoint-topic-filters input,.checkpoint-topic-filters select{width:100%;height:48px;padding:0 16px;border:1px solid #becbd4;border-radius:6px;background:#fff;color:var(--topic-text);font-size:15px}.checkpoint-topic-search input{padding-right:52px}.checkpoint-topic-search i{position:absolute;right:0;top:0;width:52px;height:48px;display:grid;place-items:center;border-radius:0 6px 6px 0;background:var(--topic-navy);color:#fff}.checkpoint-topic-count{height:48px;display:flex;align-items:center;justify-content:center;border-radius:6px;background:#fff;color:var(--topic-navy);font-size:14px}.checkpoint-topic-count strong{margin-right:4px;color:var(--topic-teal-dark);font-size:18px}
.checkpoint-topic-product-list{display:grid;gap:16px}.checkpoint-topic-product{min-height:176px;display:grid;grid-template-columns:minmax(0,1fr) 230px;overflow:hidden;border:1px solid var(--topic-line);border-radius:10px;background:#fff;box-shadow:0 8px 24px rgba(9,39,66,.05)}.checkpoint-topic-product[hidden]{display:none}.checkpoint-topic-product-copy{padding:28px 32px}.checkpoint-topic-code{display:block;margin-bottom:8px;color:var(--topic-teal-dark);font-size:14px;font-weight:700}.checkpoint-topic-product h3{margin:0 0 16px;font-size:20px;line-height:1.35}.checkpoint-topic-product h3 a:hover{color:var(--topic-teal-dark)}.checkpoint-topic-product dl{display:flex;flex-wrap:wrap;gap:8px 32px;margin:0;font-size:14px}.checkpoint-topic-product dl div{display:flex;gap:8px}.checkpoint-topic-product dt{color:var(--topic-navy);font-size:14px;font-weight:700;letter-spacing:0;text-transform:none}.checkpoint-topic-product dd{margin:0;color:var(--topic-muted)}.checkpoint-topic-product-data{min-height:176px;padding:16px;display:grid;place-items:center;background:#f8fafb}.checkpoint-topic-product-data img{display:block;width:100%;height:144px;object-fit:contain}.checkpoint-topic-product-data:focus-visible{outline:3px solid var(--topic-teal);outline-offset:-4px}.checkpoint-topic-empty{margin:0;padding:40px;text-align:center}.checkpoint-topic-empty[hidden]{display:none}
.checkpoint-topic-performance{padding:80px 0}.checkpoint-topic-performance-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:48px 32px}.checkpoint-topic-performance-grid article h3{width:88%;margin:0 auto 18px;font-size:20px}.checkpoint-topic-figure{width:88%;height:300px;margin:0 auto;padding:28px;display:grid;place-items:center;overflow:hidden;border:1px solid #aebdc7;border-radius:4px 28px 4px 4px;background:#fff}.checkpoint-topic-figure img{display:block;width:100%;height:100%;object-fit:contain}.checkpoint-topic-performance-grid article p{width:88%;margin:16px auto 0;color:var(--topic-muted);font-size:14px;line-height:1.55}.checkpoint-topic-performance-grid article p+p{margin-top:6px}.checkpoint-topic-performance-grid article p strong{color:var(--topic-navy)}
.checkpoint-topic-related{padding:80px 0;background:var(--topic-light)}.checkpoint-topic-related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.checkpoint-topic-related-grid>a{overflow:hidden;border:1px solid var(--topic-line);border-radius:8px;background:#fff}.checkpoint-topic-related-grid img{display:block;width:100%;height:210px;object-fit:cover}.checkpoint-topic-related-grid span{padding:22px 24px 24px;display:block}.checkpoint-topic-related-grid strong{display:block;color:var(--topic-navy);font-size:21px}.checkpoint-topic-related-grid b{display:block;margin-top:12px;color:var(--topic-teal-dark);font-size:15px}.checkpoint-topic-related-grid>a:hover strong{color:var(--topic-teal-dark)}
.checkpoint-topic-contact{padding:64px 0 72px}.checkpoint-topic-contact-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--topic-line);border-radius:8px;overflow:hidden;background:#fff}.checkpoint-topic-contact-grid a{min-height:112px;padding:24px 28px;display:flex;align-items:center;gap:18px;border-right:1px solid var(--topic-line)}.checkpoint-topic-contact-grid a:last-child{border-right:0}.checkpoint-topic-contact-grid i{width:48px;height:48px;flex:0 0 48px;display:grid;place-items:center;border:2px solid var(--topic-teal);border-radius:50%;color:var(--topic-teal-dark);font-size:18px}.checkpoint-topic-contact-grid span{color:var(--topic-muted)}.checkpoint-topic-contact-grid strong{display:block;margin-bottom:3px;color:var(--topic-navy)}.checkpoint-topic-contact-grid a:hover{background:#f7fbfb}
@media(max-width:920px){.checkpoint-topic-intro-grid{grid-template-columns:1fr;gap:32px}.checkpoint-topic-intro-media{height:auto;aspect-ratio:16/9}.checkpoint-topic-intro-copy{height:auto}.checkpoint-topic-highlights{margin-top:40px}.checkpoint-topic-nav .container{gap:24px;overflow-x:auto}.checkpoint-topic-nav a{white-space:nowrap}.checkpoint-topic-nav .checkpoint-topic-quick{display:none}.checkpoint-topic-filters{grid-template-columns:1fr 1fr}.checkpoint-topic-search{grid-column:1/-1}.checkpoint-topic-product{grid-template-columns:minmax(0,1fr) 190px}.checkpoint-topic-related-grid{gap:16px}}
@media(max-width:620px){.checkpoint-topic-breadcrumbs{padding-top:18px}.checkpoint-topic-intro{padding:36px 0 48px}.checkpoint-topic-intro h1{margin-bottom:24px;font-size:40px}.checkpoint-topic-intro-media{aspect-ratio:4/3}.checkpoint-topic-intro-copy>p{font-size:16px;text-align:left}.checkpoint-topic-highlights{grid-template-columns:1fr;gap:24px}.checkpoint-topic-nav{top:0}.admin-bar .checkpoint-topic-nav{top:46px}.checkpoint-topic-products,.checkpoint-topic-performance,.checkpoint-topic-related{padding:56px 0}.checkpoint-topic-groups{grid-template-columns:1fr;gap:8px}.checkpoint-topic-filters{grid-template-columns:1fr}.checkpoint-topic-search{grid-column:auto}.checkpoint-topic-count{justify-content:flex-start;padding:0 16px}.checkpoint-topic-product{grid-template-columns:1fr}.checkpoint-topic-product-copy{padding:22px 20px}.checkpoint-topic-product dl{display:grid;gap:5px}.checkpoint-topic-product-data{min-height:180px}.checkpoint-topic-product-data img{height:148px}.checkpoint-topic-performance-grid,.checkpoint-topic-related-grid,.checkpoint-topic-contact-grid{grid-template-columns:1fr}.checkpoint-topic-performance-grid{gap:40px}.checkpoint-topic-performance-grid article h3,.checkpoint-topic-performance-grid article p,.checkpoint-topic-figure{width:100%}.checkpoint-topic-figure{height:250px}.checkpoint-topic-related-grid img{height:220px}.checkpoint-topic-contact{padding:56px 0}.checkpoint-topic-contact-grid a{border-right:0;border-bottom:1px solid var(--topic-line)}.checkpoint-topic-contact-grid a:last-child{border-bottom:0}}

/* Accepted hierarchy pass: product-overview rhythm with service-page contact treatment. */
.checkpoint-topic-breadcrumbs{padding-bottom:20px;background:#fff}.checkpoint-topic-intro{padding:56px 0 72px;background:#f3f6f8}.checkpoint-topic-intro-grid{gap:56px}.checkpoint-topic-intro-media{height:400px;box-shadow:0 20px 44px rgba(9,39,66,.12)}.checkpoint-topic-intro-copy{height:400px;padding:20px 0 8px}.checkpoint-topic-highlights{padding-top:24px}.checkpoint-topic-icon{background:#fff;box-shadow:0 8px 20px rgba(9,39,66,.06)}
.checkpoint-topic-products{padding:80px 0 88px;background:#fff}.checkpoint-topic-groups button{background:#f7f9fa;box-shadow:none}.checkpoint-topic-groups button.is-active{background:#eaf6f5}.checkpoint-topic-filters{background:#f3f6f8}.checkpoint-topic-product{border-color:#d4e0e6;box-shadow:0 12px 32px rgba(9,39,66,.07)}.checkpoint-topic-product-data{background:#f4f7f9}
.checkpoint-topic-performance{padding:88px 0 96px;background:#092742;color:#fff}.checkpoint-topic-performance h2,.checkpoint-topic-performance-grid article h3{color:#fff}.checkpoint-topic-performance-grid{gap:56px 40px}.checkpoint-topic-performance-grid article{display:grid;grid-template-rows:auto 300px auto auto;align-content:start}.checkpoint-topic-figure{width:100%;height:300px;border:0;border-radius:8px;background:#fff;box-shadow:0 18px 36px rgba(0,0,0,.18)}.checkpoint-topic-performance-grid article h3,.checkpoint-topic-performance-grid article p{width:100%}.checkpoint-topic-performance-grid article p{color:#d4e2e8}.checkpoint-topic-performance-grid article p strong{color:#82d2d0}
.checkpoint-topic-related{padding:80px 0 88px;background:#f3f6f8}.checkpoint-topic-related-grid>a{border:0;box-shadow:0 10px 28px rgba(9,39,66,.08)}.checkpoint-topic-related-grid img{height:224px}
.checkpoint-topic-contact{padding:56px 0 64px;background:#fff}.checkpoint-topic-contact h2{margin-bottom:32px;font-size:32px}.checkpoint-topic-contact-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:30px;border:0;border-radius:0;overflow:visible;background:transparent}.checkpoint-topic-contact-item{min-height:64px;padding:0!important;display:grid!important;grid-template-columns:44px minmax(0,1fr);gap:13px;align-items:center;border:0!important;background:transparent!important}.checkpoint-topic-contact-item i{width:42px;height:42px;flex:0 0 42px;border:2px solid #159b9a;color:#0d7878;font-size:18px}.checkpoint-topic-contact-item span{font-size:14px;line-height:1.5}.checkpoint-topic-contact-item strong{font-size:13px}.checkpoint-topic-contact-item:hover strong{color:#0d7878}
@media(max-width:920px){.checkpoint-topic-intro-media{height:auto}.checkpoint-topic-intro-copy{height:auto;padding:0}.checkpoint-topic-contact-grid{grid-template-columns:1fr 1fr;gap:24px 32px}}
@media(max-width:620px){.checkpoint-topic-intro{padding:48px 0 56px}.checkpoint-topic-products,.checkpoint-topic-performance,.checkpoint-topic-related{padding:64px 0}.checkpoint-topic-performance-grid article{grid-template-rows:auto 250px auto auto}.checkpoint-topic-contact{padding:48px 0 56px}.checkpoint-topic-contact h2{font-size:30px}.checkpoint-topic-contact-grid{grid-template-columns:1fr;gap:20px}.checkpoint-topic-contact-item{min-height:56px;border:0!important}}

/* Keep assay evidence fully visible inside its fixed-height canvas. */
.checkpoint-topic-figure{box-sizing:border-box;display:flex;align-items:center;justify-content:center}
.checkpoint-topic-figure img{width:auto;height:auto;max-width:100%;max-height:100%;min-width:0;min-height:0;object-fit:contain}

/* Match the accepted technical-service typography scale. */
.checkpoint-topic-v5{font-size:16px;line-height:1.7}
.checkpoint-topic-intro h1{font-size:46px;line-height:1.08;letter-spacing:-.025em}
.checkpoint-topic-intro-copy>p{font-size:16px;line-height:1.7}
.checkpoint-topic-products h2,
.checkpoint-topic-performance h2,
.checkpoint-topic-related h2,
.checkpoint-topic-contact h2{font-size:32px;line-height:1.22;letter-spacing:-.02em}
.checkpoint-topic-product h3,
.checkpoint-topic-performance-grid article h3,
.checkpoint-topic-related-grid strong{font-size:18px;line-height:1.4;letter-spacing:-.01em}
.checkpoint-topic-groups button strong,
.checkpoint-topic-highlights strong{font-size:16px;line-height:1.4}
.checkpoint-topic-groups button span,
.checkpoint-topic-product dl,
.checkpoint-topic-performance-grid article p{font-size:14px;line-height:1.55}

@media(max-width:620px){
	.checkpoint-topic-intro h1{font-size:38px}
	.checkpoint-topic-products h2,
	.checkpoint-topic-performance h2,
	.checkpoint-topic-related h2,
	.checkpoint-topic-contact h2{font-size:30px}
}

/* Service-page banner rhythm with the product introduction moved below Overview. */
.checkpoint-topic-hero{position:relative;height:365px;overflow:hidden;background:#061d33;color:#fff}
.checkpoint-topic-hero-media,
.checkpoint-topic-hero-media img{position:absolute;inset:0;width:100%;height:100%}
.checkpoint-topic-hero-media{z-index:0}
.checkpoint-topic-hero-media img{display:block;object-fit:cover;object-position:center}
.checkpoint-topic-hero::after{content:"";position:absolute;z-index:1;inset:0;background:linear-gradient(90deg,rgba(6,29,51,.98) 0%,rgba(6,29,51,.91) 40%,rgba(6,29,51,.54) 62%,rgba(6,29,51,.08) 100%)}
.checkpoint-topic-hero-inner{position:relative;z-index:2;height:100%;display:flex;align-items:center}
.checkpoint-topic-hero-copy{max-width:620px}
.checkpoint-topic-hero h1{max-width:560px;margin:0 0 16px;color:#fff;font-size:46px;line-height:1.08;letter-spacing:-.025em;text-shadow:0 2px 18px rgba(0,0,0,.18)}
.checkpoint-topic-hero-copy p{max-width:560px;margin:0 0 24px;color:#e1edf2;font-size:16px;line-height:1.6;text-shadow:0 2px 14px rgba(0,0,0,.18)}
.checkpoint-topic-hero-button{display:inline-flex;min-height:44px;align-items:center;justify-content:center;padding:0 22px;border:1px solid #fff;border-radius:24px;background:#fff;color:var(--topic-navy);font-size:14px;font-weight:700;transition:background-color .2s ease,color .2s ease,border-color .2s ease}
.checkpoint-topic-hero-button:hover{border-color:#eef8f7;background:#eef8f7;color:var(--topic-teal-dark)}
.checkpoint-topic-hero-button:focus-visible{outline:3px solid #82d2d0;outline-offset:3px}
.checkpoint-topic-breadcrumbs{padding-top:20px;padding-bottom:20px}
.checkpoint-topic-overview{padding:58px 0 72px;background:#fff}
.checkpoint-topic-overview h2{margin:0 0 24px;color:var(--topic-navy);font-size:32px;line-height:1.22;letter-spacing:-.02em}
.checkpoint-topic-overview .checkpoint-topic-intro-copy{height:auto;padding:0;display:block}
.checkpoint-topic-overview .checkpoint-topic-intro-copy>p{max-width:880px;margin:0;color:var(--topic-text);font-size:16px;line-height:1.7;text-align:left}
.checkpoint-topic-overview .checkpoint-topic-highlights{max-width:900px;margin:40px auto 0;padding-top:0}
.checkpoint-topic-overview .checkpoint-topic-icon{background:#eef7f7;box-shadow:none}

@media(max-width:920px){
	.checkpoint-topic-hero{height:330px}
	.checkpoint-topic-hero-copy{max-width:52%}
	.checkpoint-topic-hero h1{max-width:100%}
}
@media(max-width:620px){
	.checkpoint-topic-hero{height:300px}
	.checkpoint-topic-hero-media img{object-position:center}
	.checkpoint-topic-hero::after{background:linear-gradient(90deg,rgba(6,29,51,.96) 0%,rgba(6,29,51,.82) 54%,rgba(6,29,51,.28) 100%)}
	.checkpoint-topic-hero h1{max-width:100%;font-size:38px}
	.checkpoint-topic-hero-copy{max-width:76%}
	.checkpoint-topic-hero-copy p{margin-bottom:20px;font-size:16px;line-height:1.5}
	.checkpoint-topic-overview{padding:48px 0 56px}
	.checkpoint-topic-overview h2{font-size:30px}
	.checkpoint-topic-overview .checkpoint-topic-highlights{margin-top:32px}
}
@media(min-width:821px) and (max-width:960px){
	body.page-template-page-immune-checkpoint-proteins .header .nav-actions .button{display:none}
}

/* Match the service page's rendered hero depth and full-width overview measure. */
@media(min-width:821px){
	.checkpoint-topic-hero{height:630px}
}
.checkpoint-topic-overview .checkpoint-topic-intro-copy>p{width:100%;max-width:none;font-size:16px;font-weight:400;line-height:1.7;letter-spacing:normal}
@media(max-width:820px){
	.checkpoint-topic-hero{height:300px}
	.checkpoint-topic-hero-copy{max-width:56%}
	.checkpoint-topic-hero h1{font-size:38px}
}
@media(max-width:620px){
	.checkpoint-topic-hero-copy{max-width:76%}
}

/* Reuse the technical-service page's compact terminal contact rhythm. */
.checkpoint-topic-contact{padding:28px 0 38px}
.checkpoint-topic-contact h2{margin:0 0 24px}
.checkpoint-topic-contact-item{min-height:48px!important}
@media(max-width:620px){
	.checkpoint-topic-contact{padding:24px 0 32px}
	.checkpoint-topic-contact h2{margin-bottom:24px}
	.checkpoint-topic-contact-item{min-height:56px!important}
}