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.application-photos{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:60px}.application-photos img{display:block;width:100%;aspect-ratio:1;object-fit:cover;border-radius:18px}.application-photos figcaption{font-size:18px;padding-top:14px}.h2-explainer .learn-source a{color:#246c71!important}@media(max-width:760px){.application-photos{gap:12px;margin-bottom:35px}.application-photos figcaption{font-size:13px;line-height:1.4}.application-photos img{border-radius:10px}}
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.exposure-time{margin:50px 0;padding:32px;border:1px solid #c7a781;border-radius:18px;background:linear-gradient(110deg,#f3ebdb,#ede0cf)}.exposure-stages{display:flex;align-items:center;justify-content:space-between;gap:18px;margin:25px 0;font:400 clamp(21px,2.5vw,34px)/1.3 Georgia,serif;color:#9a4f2e}.exposure-time a{display:inline-block;margin-top:16px;font-size:13px;color:#246c71!important}@media(max-width:760px){.exposure-time{padding:22px}.exposure-stages{flex-direction:column;align-items:flex-start}.exposure-stages b{transform:rotate(90deg);align-self:center}}
/* The homepage conclusion: understand, compare formats, ask a question. */
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/* Equal portrait panels give the visual explanation room beside the copy. */
.pathway-stages{gap:32px;align-items:start}
.pathway-stages figure{display:grid;grid-template-rows:auto 1fr}
.pathway-stages img,.pathway-stages svg{aspect-ratio:4/5;width:100%;height:auto;max-height:none;border-radius:20px}
.pathway-stages svg{padding:18px}
.pathway-stages figure+figure:before{top:0;left:-29px;height:auto;aspect-ratio:4/5;width:calc(100% + 32px);display:flex;align-items:center;pointer-events:none;font-size:26px}
.pathway-stages figcaption{padding-top:22px}
.pathway-stages strong{font-size:clamp(18px,1.65vw,22px);min-height:2.6em;text-wrap:balance}
.h2-explainer .pathway-stages p{font-size:16px;line-height:1.55;margin-top:12px}
#pathway-pollution img{object-position:32% center}
#pathway-food img{object-position:53% center}
#pathway-sleep img{object-position:10% center}
@media(max-width:760px){
 .pathway-stages{gap:44px;max-width:480px;margin-inline:auto}
 .pathway-stages img,.pathway-stages svg{aspect-ratio:4/5;max-height:none}
 .pathway-stages strong{min-height:0;font-size:21px}
 .pathway-stages figure+figure:before{top:-37px;left:0;width:100%;height:30px;aspect-ratio:auto;justify-content:center}
 .pathway-stages figcaption{padding-top:18px}
}
/* Labelled, category-specific pathways: visible anatomy and explanatory steps. */
.pathway-stages .mechanism-panel{min-height:570px;background:#f0e9db;border:1px solid #dfd5c1;border-radius:20px;padding:62px 22px 24px;display:flex;flex-direction:column;gap:20px}
.diagram-kicker{font:600 15px/1.4 Arial,sans-serif;color:#78623b;display:block;min-height:42px}
.mechanism-route{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:32px}
.mechanism-route li{position:relative;display:grid;grid-template-columns:66px 1fr;gap:12px;align-items:start}
.mechanism-route li+li:before{content:'↓';position:absolute;left:24px;top:-30px;color:#a88754;font-size:23px}
.pathway-stages .mechanism-route svg,.pathway-stages .balance-pair svg{width:66px;height:66px;aspect-ratio:1;padding:0;background:transparent;border-radius:0}
.mechanism-panel b{display:block;font:600 17px/1.3 Arial,sans-serif;color:#203e41}
.mechanism-route li span,.effect-cause>span{display:block;font:15px/1.45 Arial,sans-serif;color:#4c5664;margin-top:7px}
.tissue-section>span{font:14px/1.4 Arial,sans-serif;display:block;margin-bottom:12px;color:#30555c}
.tissue-cells{display:flex;gap:4px;border-bottom:5px solid #8eafa6;padding-bottom:5px}
.tissue-cells i{display:grid;place-items:center;flex:1;height:51px;border:2px solid #30555c;border-radius:13px 13px 5px 5px;background:#cbded5}
.tissue-cells i:after{content:'';width:14px;height:14px;background:#688e88;border-radius:50%}
.tissue-key{display:flex;flex-direction:column;gap:3px;margin-top:9px;font:12px/1.35 Arial,sans-serif;color:#526862}
.effect-cause{border-left:3px solid #b76d54;padding-left:13px}
.balance-pair{display:grid;grid-template-columns:1fr 20px 1fr;gap:8px;align-items:center;text-align:center}
.balance-pair>div{display:flex;align-items:center;flex-direction:column;gap:8px}
.mechanism-panel .balance-pair b{font-size:13px}.balance-vs{color:#876e45}
.ros-symbol{display:grid;place-items:center;font:72px/66px Arial,sans-serif;height:66px;color:#b9533d}
.h2-explainer .mechanism-panel .diagram-takeaway{margin:0;padding-top:13px;border-top:1px solid #d1c2a7;font:14px/1.45 Arial,sans-serif;color:#203e41}
.pathway-stages figure:first-child>img{height:570px;aspect-ratio:auto}
.pathway-stages figure+figure:before{height:570px;aspect-ratio:auto}
@media(min-width:761px) and (max-width:1100px){.pathway-stages{grid-template-columns:1fr 1fr}.pathway-stages figure:first-child{grid-column:1/-1;grid-template-columns:1fr 1fr;gap:24px;align-items:center}.pathway-stages figure:first-child>img{height:340px}.pathway-stages figure:nth-child(2):before{display:none}}
@media(max-width:760px){.pathway-stages .mechanism-panel{min-height:0;padding:60px 22px 24px}.pathway-stages figure:first-child>img{height:auto;aspect-ratio:4/5}.pathway-stages figure+figure:before{height:30px}.diagram-kicker{min-height:0}.mechanism-route{gap:36px}}
/* One picture, one thought; supporting detail stays optional. */
.simple-pathway .pathway-stages{grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}
.simple-pathway .pathway-stages figure:first-child{grid-column:auto;display:block}
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.simple-pathway .simple-visual img,.simple-pathway .simple-visual svg{width:100%;height:100%;aspect-ratio:auto;max-height:none;object-fit:cover;padding:0}
.simple-pathway .simple-visual svg{padding:12px}
.simple-pathway .pathway-stages figure+figure:before{display:flex;height:330px}
.simple-pathway .pathway-stages strong{min-height:0;font-size:21px;line-height:1.35}
.h2-explainer .simple-note{font-size:16px;color:#59616a;margin-top:22px}
.pathway-details{margin-top:18px;font:15px/1.6 Arial,sans-serif;color:#59616a}
.pathway-details summary{color:#246c71;cursor:pointer;text-underline-offset:4px}
.pathway-details>div{margin-top:18px;max-width:880px}.pathway-details p{font-size:15px}.pathway-details strong{color:#203e41}
@media(max-width:760px){.simple-pathway .pathway-stages{grid-template-columns:1fr;gap:44px}.simple-pathway .simple-visual{height:auto;aspect-ratio:1.1}.simple-pathway .pathway-stages figure+figure:before{height:30px}.simple-pathway .pathway-stages strong{font-size:21px}}