:root{color-scheme:dark;--bg:#0b111c;--panel:#111a27;--panel-deep:#0e1622;--stroke:#253344;--text:#edf3f6;--muted:#8e9eb2;--accent:#8ce3c0;--amber:#e7bc7d;--blue:#77a9e8}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;font-size:14px;line-height:1.6}button,input,a{-webkit-tap-highlight-color:transparent}button,a,input{outline-offset:5px}button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:wait;opacity:.55}a{color:inherit;text-decoration:none}button{border:0}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--accent)}.topbar{height:88px;max-width:1600px;margin:auto;padding:0 5%;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #1c2837}.brand{display:flex;align-items:center;font-size:22px;font-weight:650;letter-spacing:-.8px}.brand>span:not(.brand-symbol){font-weight:350;color:#a8bacb}.brand-symbol{color:var(--accent);font-size:35px;margin-right:11px;line-height:1}.topbar nav{display:flex;align-items:center;gap:34px;font-size:13px;color:#b2bfce}.topbar nav button{background:none;padding:0}.topbar nav a:hover,.topbar nav button:hover{color:var(--accent)}.connection{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted)}.connection i,.mode-badge span,.eyebrow>span{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px #8ce3c033;display:inline-block}.connection i{background:#77879b}.connection i.connected{background:var(--accent)}main{max-width:1600px;margin:auto;padding:0 5%}.hero{display:grid;grid-template-columns:1fr 1fr;gap:30px;padding:64px 0 58px;align-items:center}.eyebrow{color:var(--accent);font-size:10px;font-weight:600;letter-spacing:2.5px;display:flex;align-items:center;gap:10px}.hero h1{font-size:clamp(34px,3.2vw,54px);font-weight:500;letter-spacing:-1.5px;line-height:1.33;margin:19px 0 22px}.hero h1 span{color:var(--accent)}.hero-copy>p{font-size:14px;color:#96a6bb;max-width:445px;line-height:1.9}.hero-actions{display:flex;align-items:center;gap:22px;margin-top:29px}.primary{display:inline-flex;align-items:center;justify-content:center;gap:28px;background:var(--accent);color:#10261e;border-radius:6px;padding:12px 20px;font-size:13px;font-weight:650;transition:background .2s,transform .2s}.primary:hover{background:#aff0d5;transform:translateY(-1px)}.primary span{font-size:18px;line-height:1}.hero-note{color:#718398;font-size:11px}.hero-visual{position:relative;align-self:stretch;min-height:325px;border:1px solid #263547;background:radial-gradient(ellipse at 45% 45%,#16343a55,transparent 72%),#0f1824;border-radius:12px;overflow:hidden}.hero-visual>img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}.visual-caption{position:absolute;right:18px;top:15px;font-size:10px;color:#63788d;letter-spacing:1px}.visual-label{position:absolute;bottom:22px;left:25px;display:flex;align-items:center;gap:13px;font-size:12px;color:#c2ddd4}.target-icon{font-size:30px;color:var(--accent)}.visual-label small{display:block;font-size:9px;color:#6b8e91;letter-spacing:.3px;margin-top:2px}.section-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:23px}.section-heading h2{font-size:25px;letter-spacing:-.6px;font-weight:450;margin:9px 0 0}.mode-badge{border:1px solid #2b4242;border-radius:20px;background:#182d2b55;padding:5px 12px;font-size:11px;color:#a2c7ba;display:flex;align-items:center;gap:8px}.mode-badge span{width:5px;height:5px}.demo-shell{display:grid;grid-template-columns:185px minmax(0,1fr) 245px;border:1px solid var(--stroke);background:var(--panel-deep);border-radius:11px;overflow:hidden}.scenario-panel{padding:24px 15px;background:#101a28;border-right:1px solid var(--stroke);display:flex;flex-direction:column}.panel-kicker{font-size:11px;letter-spacing:.6px;color:#bdcad7;display:flex;align-items:center;justify-content:space-between}.panel-kicker>span:not(.output-state){font-size:10px;color:#5f7288;letter-spacing:1px}.muted{color:var(--muted)}.small{font-size:11px}.scenario-panel>p{margin:5px 0 20px;color:#647b92}.scenario-list{display:grid;gap:8px}.scenario-button{width:100%;text-align:left;display:flex;align-items:center;gap:10px;padding:13px 10px;border:1px solid transparent;border-radius:6px;background:none;transition:background .2s}.scenario-button .code{font-size:11px;letter-spacing:1px;color:#748ca1;border:1px solid #334152;width:32px;height:32px;display:grid;place-items:center;border-radius:5px;flex-shrink:0}.scenario-button strong{font-size:12px;font-weight:450;display:block}.scenario-button small{font-size:10px;color:#72879c;display:block}.scenario-button:hover{background:#192b3b}.scenario-button.active{background:#1b393733;border-color:#35584e}.scenario-button.active .code{color:var(--accent);border-color:#527d6e;background:#8ce3c00a}.scenario-button.active strong{color:#cdeee0}.side-footer{margin-top:auto;padding:32px 10px 0}.side-footer>span{font-size:10px;color:#71869c;display:block}.side-footer strong{display:block;font-size:12px;font-weight:450;margin-top:4px}.side-footer p{font-size:10px;line-height:1.8;color:#6e839a;margin:8px 0 0}.demo-main{padding:20px;min-width:0}.video-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;gap:10px}.video-header>div{display:flex;align-items:center;gap:9px}.video-header strong{font-size:12px;font-weight:450}.clip-code{font-size:10px;letter-spacing:.6px;color:var(--accent);border-radius:3px;background:#243b36;padding:1px 5px}.video-stage{aspect-ratio:16/9;background:#080e17;position:relative;border-radius:6px;overflow:hidden;border:1px solid #283545}.video-stage video{width:100%;height:100%;display:block;object-fit:contain}.video-stamp{position:absolute;top:12px;left:12px;pointer-events:none;font-size:9px;letter-spacing:1.5px;color:#c7ddd3;background:#142824b3;padding:4px 8px;border:1px solid #4f766955;border-radius:3px}.video-stamp i{display:inline-block;width:4px;height:4px;background:var(--accent);border-radius:50%;margin-right:6px;vertical-align:middle}.video-empty{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(135deg,#10232c,#111b2c);text-align:center;padding:20px}.video-empty[hidden]{display:none}.lock-icon{font-size:35px;color:#6f9f9c;line-height:1}.video-empty h3{font-size:17px;font-weight:450;margin:12px 0 5px}.video-empty p{font-size:11px;color:#7c91a5;max-width:280px;margin:0 0 19px}.video-empty .primary{font-size:11px;padding:9px 20px}.video-caption{margin-top:10px;display:flex;gap:15px;justify-content:space-between;color:#778ba2;font-size:10px}.video-caption span:last-child{white-space:nowrap;font-variant-numeric:tabular-nums}.chart-heading{margin-top:26px;display:flex;justify-content:space-between;align-items:center}.chart-heading h3{margin:0;font-size:12px;font-weight:450}.chart-heading p{font-size:9px;color:#70859a;margin:3px 0 0}.window-switch{display:flex;padding:3px;border:1px solid #2b3b4d;border-radius:5px;gap:2px}.window-switch button{padding:3px 11px;border-radius:3px;background:transparent;color:#8296ac;font-size:10px}.window-switch button.active{background:#2b413c;color:var(--accent)}.chart-container{height:178px;margin-top:16px;position:relative}.chart-container canvas{width:100%;height:100%;display:block}.chart-placeholder{position:absolute;inset:0;display:grid;place-items:center;font-size:11px;color:#4e647c;pointer-events:none}.chart-placeholder[hidden]{display:none}.chart-legend{display:flex;gap:20px;font-size:10px;color:#8da1b6;align-items:center;flex-wrap:wrap}.chart-legend>span,.chart-legend label{display:inline-flex;gap:7px;align-items:center}.chart-legend label{cursor:pointer}.legend-line{width:12px;height:2px;display:inline-block;background:var(--accent)}.legend-line.reference{background:#e7bc7d}.legend-line.facephys{background:#77a9e8}.chart-legend input{width:11px;height:11px;margin:0;accent-color:var(--blue)}.readout-panel{border-left:1px solid var(--stroke);padding:24px 20px;background:#101a28}.output-state{font-size:9px;background:#243342;color:#879fb1;padding:2px 6px;border-radius:3px;letter-spacing:0}.output-state.ready{background:#233e34;color:#a5dec5}.heart-label{color:#91a5bb;font-size:11px;margin-top:25px}.heart-label>span{font-size:20px;color:var(--accent);vertical-align:middle;margin-right:4px}.big-reading{display:flex;gap:10px;align-items:baseline;line-height:1.4;margin:2px 0 22px}.big-reading strong{font-family:"Segoe UI",sans-serif;font-size:65px;font-weight:300;letter-spacing:-4px;color:var(--accent);font-variant-numeric:tabular-nums}.big-reading>span{color:#6a829a;font-size:12px}.reading-grid{display:grid;grid-template-columns:1fr 1fr;padding-bottom:23px;border-bottom:1px solid #283648}.reading-grid>div>span{display:block;font-size:10px;color:#8397ad;margin-bottom:4px}.reading-grid strong{font-size:20px;font-weight:400;font-variant-numeric:tabular-nums}.reading-grid small{font-size:9px;color:#6e8398;margin-left:4px}.support-box{margin-top:22px;font-size:10px}.support-box>div{display:flex;justify-content:space-between;color:#9badbf}.support-box strong{font-size:11px;font-weight:400;color:var(--accent)}progress{width:100%;height:4px;border:none;border-radius:4px;margin-top:10px;background:#273748;overflow:hidden}progress::-webkit-progress-bar{background:#273748}progress::-webkit-progress-value{background:var(--accent)}progress::-moz-progress-bar{background:var(--accent)}.support-box p{font-size:10px;color:#6e849b;margin:5px 0}.window-note{padding:12px 10px;border:1px solid #2a3b4a;border-radius:5px;font-size:10px;color:#849aaf;margin:19px 0 27px;min-height:54px}.summary-box .panel-kicker{margin-bottom:15px}.summary-box>div:not(.panel-kicker){display:flex;align-items:center;justify-content:space-between;font-size:10px;margin:10px 0;color:#859ab0}.summary-box strong{font-size:14px;font-weight:400;color:#d7e3eb}.summary-box strong small{font-size:9px;color:#7e92a8}.summary-box p{font-size:9px;color:#5e768e;line-height:1.8;margin:12px 0 17px}.text-button{display:flex;justify-content:space-between;font-size:10px;padding-top:12px;border-top:1px solid #2a3a4d;color:#a4cbbb}.workspace-footnote{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:10px;color:#687f96;margin-top:13px}.workspace-footnote button{background:none;font-size:10px;color:#9fb8c4;padding:4px 0}.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:50px;margin:66px 0 62px}.principle{border-top:1px solid #273749;padding-top:16px}.principle>span{font-size:9px;letter-spacing:1.5px;color:#618b84}.principle h3{font-size:15px;font-weight:450;margin:14px 0 8px}.principle p{color:#788fa5;font-size:12px;line-height:1.8;max-width:320px}footer{padding:28px 5%;border-top:1px solid #1d2b3c;max-width:1600px;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:20px}footer .brand{font-size:16px}footer>span{font-size:10px;color:#60768d}dialog{color:var(--text);background:#121e2d;border:1px solid #364b5d;border-radius:12px;padding:38px;max-width:490px;width:calc(100% - 32px);box-shadow:0 25px 100px #0008}dialog::backdrop{background:#030810c9;backdrop-filter:blur(5px)}dialog h2{font-size:25px;font-weight:450;margin:15px 0}dialog p{font-size:12px;line-height:1.9;color:#a2b4c7}dialog form>label{display:block;font-size:12px;color:#acc0ce;margin-top:23px}dialog input[type=password]{margin-top:8px;width:100%;border:1px solid #3e5566;background:#0c1521;border-radius:5px;color:var(--text);padding:12px;font-size:16px}dialog .primary{width:100%;justify-content:space-between}dialog .error{color:#f1a092;min-height:22px;font-size:11px;margin:8px 0}.dialog-close{position:absolute;right:13px;top:10px;background:transparent;color:#8196a9;font-size:25px;line-height:1;padding:5px}dialog .eyebrow{font-size:9px}.toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);padding:12px 22px;border:1px solid #477363;border-radius:7px;background:#203e34;box-shadow:0 10px 35px #0006;font-size:12px;z-index:10;max-width:calc(100% - 30px)}[hidden]{display:none!important}
@media(min-width:1500px){.hero{padding-top:77px;padding-bottom:70px}.demo-shell{grid-template-columns:200px minmax(0,1fr) 265px}.demo-main{padding:24px}.readout-panel{padding:28px 24px}.chart-container{height:205px}.hero-visual{min-height:360px}}
@media(max-width:1100px){.demo-shell{grid-template-columns:160px minmax(0,1fr) 210px}.readout-panel{padding:21px 15px}.scenario-panel{padding:21px 10px}.hero-note{display:none}.demo-main{padding:17px}.chart-legend{gap:12px}.chart-container{height:160px}.big-reading strong{font-size:58px}.hero-visual{min-height:305px}}
@media(max-width:900px){.topbar{height:72px}.demo-shell{grid-template-columns:minmax(0,1fr) 220px}.scenario-panel{grid-column:1/-1;border-right:0;border-bottom:1px solid var(--stroke);padding:16px}.scenario-panel>.panel-kicker{margin-bottom:10px}.scenario-panel>p,.side-footer{display:none}.scenario-list{grid-template-columns:repeat(6,minmax(0,1fr));gap:6px}.scenario-button{display:flex;flex-direction:column;align-items:flex-start;gap:7px;padding:10px}.scenario-button strong{font-size:10px}.scenario-button small{font-size:9px}.scenario-button .code{width:auto;height:auto;border:0;background:none!important}.demo-main{grid-column:1}.readout-panel{grid-column:2}.hero{gap:20px;padding:42px 0}.hero h1{font-size:35px}.hero-copy>p{font-size:12px}.hero-visual{min-height:305px}.visual-label{left:16px;bottom:18px;font-size:10px}.visual-label small{font-size:8px}.principles{gap:25px}.chart-legend{font-size:9px}}
@media(max-width:650px){main{padding:0 20px}.topbar{padding:0 20px;height:66px}.topbar .brand{font-size:19px}.brand-symbol{font-size:29px;margin-right:7px}.topbar nav{display:none}.connection{font-size:10px}.hero{grid-template-columns:1fr;padding:38px 0 37px;gap:28px}.hero h1{font-size:39px;line-height:1.3;letter-spacing:-1.5px;margin:16px 0}.hero-copy>p{font-size:12px;max-width:420px}.hero-actions{margin-top:22px}.hero-visual{min-height:220px;max-height:260px}.visual-label{bottom:16px}.section-heading h2{font-size:21px}.section-heading .eyebrow{font-size:9px}.mode-badge{font-size:9px;padding:4px 8px;gap:5px}.demo-shell{grid-template-columns:1fr}.scenario-list{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.scenario-button{flex-direction:row;align-items:center;gap:8px;padding:8px}.scenario-button .code{border:1px solid #344558;width:25px;height:25px;font-size:9px}.scenario-button strong{font-size:10px}.scenario-button small{font-size:9px}.scenario-panel{padding:14px}.demo-main{grid-column:1;padding:14px}.video-header strong{font-size:11px}.video-header .small{font-size:9px}.video-empty h3{font-size:14px}.video-empty p{font-size:10px;margin-bottom:12px}.lock-icon{display:none}.video-caption{font-size:9px}.video-caption span:first-child{max-width:67%}.chart-heading{margin-top:22px}.chart-container{height:160px}.chart-legend{font-size:9px;gap:13px}.readout-panel{grid-column:1;display:grid;grid-template-columns:1fr 1fr;gap:0 20px;border-left:0;border-top:1px solid var(--stroke);padding:18px}.readout-panel>.panel-kicker{grid-column:1/-1}.heart-label{grid-column:1;margin:17px 0 0}.big-reading{grid-column:1;margin:0}.big-reading strong{font-size:57px}.reading-grid{grid-column:2;grid-row:2/4;align-self:center;border-bottom:0;padding:0;gap:13px}.reading-grid strong{font-size:19px}.support-box{grid-column:1;margin-top:15px}.window-note{grid-column:2;margin:15px 0 0;align-self:center}.summary-box{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:0 15px;border-top:1px solid #283a4b;margin-top:19px;padding-top:17px}.summary-box .panel-kicker,.summary-box p,.text-button{grid-column:1/-1}.summary-box .panel-kicker{margin-bottom:4px}.summary-box>div:not(.panel-kicker){margin:7px 0}.summary-box p{font-size:9px;margin:4px 0 10px}.text-button{padding-top:10px}.workspace-footnote{align-items:flex-start;font-size:9px}.principles{grid-template-columns:1fr;gap:22px;margin:40px 0}.principle h3{margin:10px 0 6px}.principle p{max-width:none;font-size:11px;margin:0}footer{padding:22px 20px;flex-wrap:wrap;gap:10px}footer>span:nth-child(2){order:3;width:100%;font-size:9px}dialog{padding:30px 24px}.eyebrow{font-size:9px;letter-spacing:2px}}
.first-result-button{display:block;margin:0 0 20px;padding:7px 10px;width:100%;border:1px solid #416456;border-radius:5px;color:var(--accent);background:#1a3028;font-size:11px}.first-result-button:hover{background:#25473a}@media(max-width:650px){.first-result-button{grid-column:1/-1;margin:12px 0 0}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}