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/* ÆSIR 2026: mobile-first editorial refinement */
html{scroll-behavior:smooth}body{background:#05090f;background-image:radial-gradient(ellipse at 55% 41%,#173039 0%,transparent 49%),linear-gradient(130deg,#050b11,#060913 70%)}.wrap{max-width:1260px}.top{border-bottom-color:#aecfc31f}.intro{max-width:920px}.intro h1{font-weight:780;letter-spacing:-.075em;text-wrap:balance}.intro p{max-width:650px;margin:0 auto;line-height:1.8;color:#adc4c8}.brain{max-width:1050px}.node{border-radius:20px}.node strong{font-weight:760}.node:hover{transform:translateY(-4px) scale(1.015)}.search{box-shadow:0 16px 48px #0008}.search:focus-within{border-color:#a3ffea}.foot{line-height:1.7}::selection{background:#7aedda;color:#04130f}
@media(max-width:690px){.intro{margin-top:22px}.intro h1{font-size:clamp(35px,9.1vw,46px);line-height:1.12}.intro p{font-size:12px;padding:0 7px}.brain{height:410px}.hub{top:56%;width:108px;height:108px}.hub strong{font-size:51px}.node{top:7%;min-height:153px}.node strong{font-size:clamp(17px,5vw,22px);line-height:1.08}.node p{line-height:1.45}.branch{top:92%}.search{margin:5px auto 25px}.links{flex-wrap:wrap;justify-content:flex-end;max-width:70%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* Third commercial neuron, anchored below the central nucleus */
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