:root{--bg:#030605;--panel:#08100e;--panel-2:#0c1714;--text:#f4fbf9;--muted:#a9bab6;--line:rgba(255,255,255,.11);--accent:#9df8f1;--accent-2:#58c9bc;--danger:#ffb5bd;--max:1180px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color-scheme:dark}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 70% 0%,rgba(67,189,177,.09),transparent 29%),var(--bg);color:var(--text);font-size:16px;line-height:1.6}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.shell-width{width:min(var(--max),calc(100% - 40px));margin-inline:auto}.skip-link{position:fixed;left:16px;top:-80px;z-index:1000;padding:10px 14px;border-radius:8px;background:#fff;color:#000}.skip-link:focus{top:16px}.public-header{position:fixed;inset:0 0 auto;z-index:50;height:78px;border-bottom:1px solid 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/* HumanTwin Bio dual-model market hero */
.hero-stars{position:absolute;inset:0;z-index:0;opacity:.32;background-image:radial-gradient(circle,rgba(255,255,255,.38) 0 1px,transparent 1.55px);background-size:92px 92px;mask-image:linear-gradient(to bottom,black,transparent 82%);pointer-events:none}
.hero-grid{z-index:0}.hero-inner{z-index:1}
.hero{min-height:920px;background:radial-gradient(circle at 79% 18%,rgba(157,248,241,.12),transparent 27%),radial-gradient(circle at 60% 54%,rgba(24,121,106,.09),transparent 30%),#030605}
.hero-inner{grid-template-columns:minmax(470px,.9fr) minmax(590px,1.1fr);gap:28px;min-height:790px}
.hero-copy{position:relative;z-index:8}.hero-copy>p{max-width:705px}.hero-scene{height:790px;position:relative;isolation:isolate;overflow:visible}
.scene-glow{position:absolute;inset:1% -8% 0;background:radial-gradient(circle at 56% 32%,rgba(157,248,241,.22),transparent 19%),radial-gradient(ellipse at 56% 61%,rgba(34,183,160,.13),transparent 42%),radial-gradient(circle at 70% 31%,rgba(216,183,101,.075),transparent 21%);pointer-events:none}
.dual-twin-figure{position:absolute;left:50%;top:51%;width:min(700px,104%);height:760px;transform:translate(-50%,-50%);overflow:visible;filter:drop-shadow(0 0 36px rgba(157,248,241,.13));z-index:3}
.twin-model{transform-box:fill-box;transform-origin:center}.twin-model-male{opacity:.76;filter:drop-shadow(0 0 9px rgba(93,231,219,.22))}.twin-model-female{opacity:.96;filter:url(#twinGlow)}
.male-region{fill:url(#maleTwinFill);stroke:rgba(94,214,208,.55);stroke-width:1.5;vector-effect:non-scaling-stroke}.female-region{fill:url(#femaleTwinFill);stroke:rgba(157,248,241,.8);stroke-width:1.75;vector-effect:non-scaling-stroke}.male-region:nth-child(3n){fill:rgba(8,53,48,.72)}.female-region:nth-child(4n){fill:rgba(15,80,67,.79)}
.twin-model-female .region-mei_1,.twin-model-male .region-mei_1{stroke:#b8fff7;stroke-width:2.15}.twin-model-female .region-mei_2,.twin-model-male .region-mei_2{fill:rgba(216,183,101,.22);stroke:rgba(216,183,101,.58)}
.twin-orbit{position:absolute;left:56%;top:48%;border:1px solid rgba(157,248,241,.25);border-radius:50%;transform:translate(-50%,-50%) rotate(-11deg);box-shadow:0 0 70px rgba(157,248,241,.055);z-index:1;pointer-events:none}.twin-orbit.orbit-one{width:720px;height:300px}.twin-orbit.orbit-two{width:590px;height:590px;transform:translate(-50%,-50%) rotate(36deg);border-color:rgba(216,183,101,.2)}.twin-orbit.orbit-three{width:430px;height:760px;transform:translate(-50%,-50%) rotate(-24deg);border-style:dashed;opacity:.7}
.twin-axis{position:absolute;z-index:2;left:56%;top:6%;bottom:4%;width:1px;background:linear-gradient(to bottom,transparent,rgba(157,248,241,.4),rgba(157,248,241,.18),transparent)}.twin-axis span,.twin-axis span:before,.twin-axis span:after{position:absolute;width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 16px rgba(157,248,241,.9);content:""}.twin-axis span{top:31%;left:-3px}.twin-axis span:before{top:220px;left:0}.twin-axis span:after{top:405px;left:0}
.system-node{position:absolute;z-index:5;display:grid;grid-template-columns:9px auto;gap:1px 8px;color:var(--text);font:700 10px/1.2 ui-monospace,SFMono-Regular,Menlo,monospace;text-transform:uppercase;letter-spacing:.08em}.system-node i{grid-row:1/3;width:8px;height:8px;margin-top:3px;border-radius:99px;background:var(--accent);box-shadow:0 0 18px var(--accent)}.system-node em{color:var(--muted);font-size:8px;font-style:normal;letter-spacing:.04em;text-transform:none}.hero-scene .node-neural{left:51%;top:6%}.hero-scene .node-cardio{right:-2%;top:34%}.hero-scene .node-metabolic{right:0;bottom:25%}.hero-scene .node-msk{left:-1%;bottom:29%}
.scene-readout{position:absolute;z-index:6;max-width:245px;padding:14px 15px;border:1px solid rgba(157,248,241,.19);border-radius:15px;background:rgba(3,6,5,.68);backdrop-filter:blur(12px);box-shadow:0 22px 70px rgba(0,0,0,.38)}.scene-readout span,.scene-readout em{display:block;color:var(--muted);font:700 8px/1.4 ui-monospace,SFMono-Regular,Menlo,monospace;text-transform:uppercase;letter-spacing:.12em;font-style:normal}.scene-readout strong{display:block;color:var(--accent);font-size:15px;margin:6px 0}.hero-scene .readout-top{left:0;top:14%}.hero-scene .readout-bottom{right:-1%;bottom:8%}
@media(max-width:1120px){.hero-inner{grid-template-columns:1fr}.hero-scene{height:730px}.dual-twin-figure{width:min(690px,100%)}}
@media(max-width:820px){.hero{min-height:auto}.hero-scene{height:650px}.dual-twin-figure{height:630px;width:620px}}
@media(max-width:560px){.hero-scene{height:520px}.dual-twin-figure{height:510px;width:510px;left:51%}.twin-orbit.orbit-one{width:470px;height:205px}.twin-orbit.orbit-two{width:390px;height:390px}.twin-orbit.orbit-three{width:290px;height:515px}.hero-scene .system-node{display:none}.hero-scene .scene-readout{max-width:150px;padding:9px}.hero-scene .scene-readout strong{font-size:10px}.hero-scene .scene-readout span,.hero-scene .scene-readout em{font-size:6px}.hero-scene .readout-top{top:5%;left:0}.hero-scene .readout-bottom{right:0;bottom:2%}}
@media(prefers-reduced-motion:reduce){.twin-model-female,.twin-model-male{filter:none}}