/* Shared editorial system; subject-specific artwork carries each story. */
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.site-header{background:#fff;border-bottom:1px solid #eceef1}
.series-cover{display:none}
.intro{padding:78px 0 66px}
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.story-heading{max-width:1130px;margin:72px auto 36px;padding:0 42px}
.story-heading h1{font-size:clamp(40px,4.2vw,68px);max-width:1000px;line-height:1.09;letter-spacing:-.045em;margin:18px 0 26px}
.story-heading .deck{max-width:920px;line-height:1.48;font-size:24px;color:#5b606e}
.story-physics{--accent:#5847a8;--wash:#f3f2fa}
.story-growth{--accent:#a65531;--wash:#fff5ec}
.story-sensing{--accent:#a15743;--wash:#faf0e9}
.story-systems{--accent:#285486;--wash:#edf2fa}.story-calculus{--accent:#396947;--wash:#edf6ee}.story-constitutive{--accent:#615499;--wash:#f0edfa}.story-weakform{--accent:#ac6230;--wash:#fff4e6}.story-statistics{--accent:#884e64;--wash:#f9edf0}.story-retention{--accent:#27756e;--wash:#eaf5f2}.story-transactions{--accent:#49628f;--wash:#eef1f7}
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.story .eyebrow{color:var(--accent)}
.story .visual{max-width:1214px;margin:48px auto 60px}
.story .canvas-frame{aspect-ratio:50/27;border-radius:4px}
.story .visual figcaption{max-width:1020px;font-size:13px;color:#666975;line-height:1.65;margin-top:17px}
.story-reading{display:grid;grid-template-columns:minmax(0,770px) 210px;gap:70px;max-width:1130px;padding:0 42px;margin:auto}
.story .prose{font-size:18px;line-height:1.82;color:#343945}
.story .prose h2{font-size:33px;line-height:1.19;font-weight:500;color:#202633;margin:50px 0 20px}
.story .prose section:first-child h2{margin-top:0}
.story .prose p{margin-bottom:26px}
.story-equation{margin:35px 0 40px}
.story-equation .math-panel{background:var(--wash);padding:26px 12px;border-radius:3px;font-size:19px}
.story-equation figcaption,.research-figure figcaption{color:#68707b;font-size:13px;line-height:1.65;margin-top:14px}
.research-figure{margin:30px 0 35px}
.research-figure img{width:100%;height:auto;display:block}
.story .takeaway{background:var(--wash);border-color:var(--accent)}
.story .takeaway h2{font-size:12px;color:var(--accent);margin:0 0 12px}
.scientific{max-width:990px}
.scientific .math-panel{background:#f8f9fb;font-size:14px;border-radius:0}
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.scientific .research-figure{margin:35px -15px}
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@media(max-width:650px){.illustration-zoom{display:block;margin:12px 14px 0;padding:8px 13px;border:1px solid #ccd3d6;background:white;border-radius:18px;color:#344851;font:inherit;font-size:12px}.illustration-expanded .canvas-frame{overflow-x:auto;aspect-ratio:auto}.illustration-expanded .canvas-frame canvas{width:800px;min-width:800px;height:432px}.illustration-expanded .canvas-frame::after{content:'Swipe horizontally to explore the enlarged illustration';display:block;padding:9px 14px;color:#53646c;font-size:12px}}
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.ct-reveal{cursor:ew-resize;touch-action:pan-y}

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.story>.art-directed{max-width:1240px;margin-left:auto;margin-right:auto;width:calc(100% - 48px)}
.art-directed{--scene-bg:#f1f3ed;--scene-ink:#29434d;background:var(--scene-bg);color:var(--scene-ink);border:1px solid #203c491a;border-radius:18px;overflow:hidden;margin:48px 0 44px;box-shadow:0 14px 45px #132c3610}
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