@font-face{font-family:Lora;src:url('../fonts/lora.woff2') format('woff2');font-style:normal;font-weight:400 700;font-display:swap}
:root{
  --ink:#1a1f2c;--muted:#596579;--soft:#7a8597;--background:#f6f7f9;--card:#fff;
  --primary:hsl(252 79% 54%);--primary-hover:#4323ce;--tint:#f0edff;--tint-2:#f8f7ff;
  --line:#e7eaf1;--blue:#5c8bdf;
  --c-sota:#4a5260;--c-sota-band:#a3aab6;--c-one:#5020c0;--c-ten:#00e0a8;--c-ten-ink:#00a87e;--c-track:#e9ecf2;
  --c-trend:#cb3199;--c-fail:#e0475b;--c-fail-tint:#fdecee;--c-warn:#c98a12;--c-warn-tint:#fff6e3;--c-ok-tint:#e6fbf4;
  --serif:Lora,'HarmonyOS Sans SC',Georgia,serif;
  --sans:var(--serif);
  --mono:'SFMono-Regular',Menlo,Consolas,'Liberation Mono',monospace;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;scroll-padding-top:24px}
body{margin:0;color:var(--ink);background:var(--background);font-family:var(--sans);-webkit-font-smoothing:antialiased;font-size:16px;line-height:1.7}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;color:inherit}
a:focus-visible,button:focus-visible{outline:3px solid var(--primary);outline-offset:4px}
h1,h2,h3,h4,p{margin:0}em{font-style:normal}
img{max-width:100%;display:block}
.shell{width:min(1180px,calc(100% - 64px));margin:auto}
.skip-link{position:fixed;left:20px;top:-100px;z-index:100;padding:10px 20px;border-radius:24px;background:var(--primary);color:#fff}
.skip-link:focus{top:12px}
.progress{position:fixed;inset:0 auto auto 0;z-index:60;height:2px;width:0;background:var(--primary)}

/* header */
.section-toc{position:fixed;z-index:30;right:14px;top:40%;display:grid;gap:8px;font-size:12px;color:#64748b}
.section-toc a{padding:8px 10px;border-radius:10px;background:rgba(246,247,249,.85);transition:color .2s,background .2s}
.section-toc a.active{color:var(--primary);background:#eeedff;font-weight:600}
.section-toc span{margin-right:9px;font-size:10px;opacity:.7}

/* hero */
.hero{position:relative;overflow:hidden;background:#fff url('../img/brand/hero-bg.png') center/cover no-repeat}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 78% 50%,rgba(169,200,255,.23),transparent 52%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;align-items:center;gap:48px;min-height:660px;padding:72px 0 78px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.76);border:1px solid #e2ddf8;color:var(--primary);border-radius:25px;padding:5px 13px;font-size:12px;font-weight:500;letter-spacing:.02em}
.eyebrow::before{content:'';width:5px;height:5px;border-radius:50%;background:var(--primary)}
.hero h1{margin-top:25px;font-family:var(--serif);font-size:clamp(34px,3.6vw,52px);font-weight:700;letter-spacing:-.045em;line-height:1.18}
.hero h1 .astra{color:var(--primary)}
.hero-tagline{margin-top:22px;font-size:clamp(20px,1.9vw,27px);font-weight:500;line-height:1.55;letter-spacing:-.015em}
.hero-tagline em{color:var(--primary)}
.hero-tagline .not{color:var(--soft)}
.hero-lede{max-width:580px;margin-top:20px;color:var(--muted);font-size:16px;line-height:1.9}
.hero-actions{display:flex;flex-direction:column;align-items:flex-start;gap:12px;margin-top:29px}
.hero-links{display:flex;flex-wrap:wrap;gap:12px}
.hero-actions .button{padding:10px 18px;white-space:nowrap}
@media (min-width:641px){.hero-actions,.hero-links{gap:10px}.hero-links{flex-wrap:nowrap}}
.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:46px;padding:10px 25px;border:1px solid transparent;border-radius:28px;font-size:14px;font-weight:500;transition:transform .2s,background .2s,box-shadow .2s,color .2s,border-color .2s}
.button:hover{transform:translateY(-2px)}
.button-primary{background:var(--primary);color:#fff;box-shadow:0 5px 18px rgba(82,45,230,.13)}
.button-primary:hover{background:var(--primary-hover);box-shadow:0 8px 24px rgba(82,45,230,.2)}
.button-ghost{color:#334155;border-color:#dfe3ed;background:rgba(255,255,255,.82)}
.button-ghost:hover{color:var(--primary);border-color:#c6bafa;background:#fff}
.button[aria-disabled=true]{opacity:.65;cursor:default}
.button .btn-icon{width:18px;height:18px;flex:none}
.system-map{position:relative;isolation:isolate;height:440px;border:1px solid rgba(255,255,255,.96);border-radius:30px;background:linear-gradient(145deg,rgba(255,255,255,.92),rgba(239,238,253,.68));box-shadow:0 20px 70px rgba(91,99,163,.09),inset 0 0 0 1px rgba(128,131,202,.06);overflow:hidden}
.system-map::before,.system-map::after{position:absolute;content:'';inset:23% 8%;border:1px solid #d3ccf7;border-radius:50%;transform:rotate(35deg);z-index:-1}
.system-map::after{transform:rotate(-35deg);border-color:#cadbf5}
.map-orbit{position:absolute;inset:15%;border:1px dashed rgba(134,122,218,.32);border-radius:50%;z-index:-1;animation:spin 60s linear infinite}
.map-orbit::before{content:'';position:absolute;top:-5px;left:50%;width:9px;height:9px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 5px rgba(82,45,230,.12)}
.map-orbit.two{inset:28%;animation-duration:38s;animation-direction:reverse;border-color:rgba(0,200,150,.3)}
.map-orbit.two::before{background:var(--c-ten);box-shadow:0 0 0 5px rgba(0,224,168,.15)}
@keyframes spin{to{transform:rotate(360deg)}}
.map-caption{position:absolute;left:24px;top:22px;font-size:10px;letter-spacing:.12em;color:#8b86b8}
.map-core{position:absolute;top:50%;left:50%;width:140px;height:140px;display:grid;place-items:center;border-radius:50%;transform:translate(-50%,-50%);background:linear-gradient(145deg,#6948ed,#512ad9);color:#fff;box-shadow:0 0 0 12px rgba(93,55,230,.055),0 14px 35px rgba(93,55,230,.2);text-align:center;animation:breathe 4.5s ease-in-out infinite}
@keyframes breathe{50%{box-shadow:0 0 0 22px rgba(93,55,230,.04),0 14px 35px rgba(93,55,230,.24)}}
.map-core span{font-size:11px;line-height:1.6;letter-spacing:.04em;opacity:.85}
.map-core strong{display:block;font-size:22px;font-weight:500;font-family:var(--serif);letter-spacing:-.03em;opacity:1}
.map-node{position:absolute;display:flex;flex-direction:column;align-items:center;justify-content:center;width:112px;height:84px;background:rgba(255,255,255,.95);border:1px solid #e2e3f4;border-radius:18px;box-shadow:0 7px 20px rgba(84,93,135,.05);font-size:14px;font-weight:500;color:#39445d;line-height:1.5;transition:transform .25s,border-color .25s,box-shadow .25s}
.map-node:hover{transform:translateY(-4px);border-color:#c6bafa;box-shadow:0 12px 28px rgba(84,93,135,.1)}
.map-node b{font-size:10px;color:var(--primary);font-weight:600;letter-spacing:.08em}
.map-node small{font-size:10px;color:#828c9f;letter-spacing:.02em;font-weight:400}
.node-1{top:15%;left:7%}.node-2{top:15%;right:7%}.node-3{bottom:15%;right:7%}.node-4{bottom:15%;left:7%}

/* sections */
.section{padding:92px 0}
.section-white{background:#fff}
.section-warm{background:var(--background)}
.section-tint{background:#f6f5fc}
.section-header{display:flex;align-items:end;justify-content:space-between;gap:50px;margin-bottom:38px}
.section-kicker{font-size:12px;font-weight:500;letter-spacing:.1em;color:var(--primary);text-transform:uppercase}
.section-title{max-width:700px;margin-top:12px;font-size:36px;font-weight:600;line-height:1.4;letter-spacing:-.025em;text-wrap:balance}
.section-intro{max-width:420px;color:var(--muted);font-size:15px;line-height:1.9}
.sub-head{display:flex;align-items:baseline;gap:14px;margin:72px 0 22px}
.sub-head h3{font-size:26px;font-weight:600;letter-spacing:-.02em;line-height:1.4}
.sub-lede{max-width:820px;color:var(--muted);font-size:15px;line-height:1.9;margin-bottom:26px}
.prose{color:var(--muted);font-size:15px;line-height:1.9}
.prose strong{color:var(--ink);font-weight:600}
.prose p+p{margin-top:12px}
.hl{color:var(--primary);font-weight:600}

#overview{padding-top:42px}
.signal-strip{display:grid;grid-template-columns:repeat(5,1fr);padding:30px 12px;background:#fff;border:1px solid #eceef5;border-radius:28px;box-shadow:0 10px 32px rgba(40,47,82,.025)}
.signal{padding:8px 14px;text-align:center;border-right:1px solid #ebedf4}
.signal:last-child{border-right:0}
.signal-value{display:block;color:var(--primary);font-family:var(--serif);font-size:38px;font-weight:500;line-height:1.2;letter-spacing:-.04em;font-variant-numeric:lining-nums tabular-nums}
.signal-value small{font-size:.55em;margin-left:2px}
.signal-label{display:block;margin-top:10px;color:var(--muted);font-size:12px;line-height:1.6}
.problem-grid{display:grid;grid-template-columns:minmax(0,900px);justify-content:center}
.problem-statement{margin-top:14px;font-size:34px;font-weight:600;line-height:1.45;letter-spacing:-.02em}
.problem-statement em{color:var(--primary)}
.problem-copy{max-width:530px;margin-top:18px;color:var(--muted);font-size:16px;line-height:1.9}
.problem-rail{position:relative;padding:10px 12px 12px;border-radius:28px;background:linear-gradient(#fff,#fff) padding-box,linear-gradient(135deg,#c9bcff,#e9e5fb 45%,#bfeee0) border-box;border:1.5px solid transparent;box-shadow:0 22px 60px rgba(82,45,230,.10)}
.rail-head{display:flex;align-items:baseline;justify-content:space-between;padding:12px 16px 10px;border-bottom:1px solid #efedf8;margin-bottom:4px}
.rail-head span{font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--primary)}
.rail-item{position:relative;display:grid;grid-template-columns:52px 1fr 28px;align-items:center;gap:14px;padding:16px 16px;border-radius:18px;transition:background .25s,transform .25s}
.rail-item::before{content:'';position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:3px;background:var(--primary);transform:scaleY(0);transition:transform .25s}
.rail-item + .rail-item{margin-top:2px}
.rail-item:hover{background:var(--tint-2)}
.rail-item:hover::before{transform:scaleY(1)}
.rail-index{font-family:var(--serif);font-size:30px;font-weight:500;line-height:1;color:var(--primary);letter-spacing:-.03em;opacity:.9}
.rail-item small{display:block;margin-bottom:3px;font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:#8a78e8}
.rail-item strong{display:block;font-size:18px;font-weight:600;line-height:1.35;color:var(--ink)}
.rail-go{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--tint);color:var(--primary);font-size:14px;transition:transform .25s,background .25s,color .25s}
.rail-item:hover .rail-go{transform:translateX(4px);background:var(--primary);color:#fff}

/* cards & figures */
.card{padding:28px;border:1px solid var(--line);border-radius:26px;background:var(--card);transition:box-shadow .2s,transform .2s}
.card-hover:hover{transform:translateY(-3px);box-shadow:0 16px 36px rgba(46,50,100,.06)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-2>*{min-width:0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pill{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:20px;font-size:11px;letter-spacing:.05em;background:#eeebfc;color:var(--primary);font-weight:500}
.pill.gray{background:#f1f3f7;color:#667085}
.pill.fail{background:var(--c-fail-tint);color:var(--c-fail)}
.pill.ok{background:var(--c-ok-tint);color:var(--c-ten-ink)}
.pill.warn{background:var(--c-warn-tint);color:var(--c-warn)}
.card h4{margin-top:18px;font-size:19px;font-weight:600;line-height:1.45;letter-spacing:-.01em}
.card p{margin-top:10px;font-size:14px;line-height:1.85;color:var(--muted)}
.card-tint{background:linear-gradient(140deg,#f8f7ff,#fff 75%)}

.figure{margin:0;padding:30px 30px 24px;background:#fff;border:1px solid var(--line);border-radius:28px;box-shadow:0 10px 32px rgba(40,47,82,.03)}
.section-white .figure{background:#fff;box-shadow:0 10px 36px rgba(40,47,82,.05)}
.figure + .figure{margin-top:28px}
.fig-top{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:18px;flex-wrap:wrap}
.fig-top-stack{flex-direction:column;justify-content:flex-start;gap:14px}
.fig-title{font-size:21px;font-weight:600;letter-spacing:-.015em;line-height:1.4}
.fig-caption{margin-top:18px;padding-top:16px;border-top:1px solid #edf0f5;color:var(--muted);font-size:13px;line-height:1.85}
.fig-caption strong{color:var(--ink)}
.fig-actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.seg{display:inline-flex;padding:3px;background:#f2f3f7;border-radius:22px;gap:2px}
.seg button{border:0;background:transparent;padding:6px 14px;border-radius:18px;font-size:12px;color:#5b6577;transition:background .2s,color .2s}
.seg button.active{background:#fff;color:var(--primary);box-shadow:0 2px 8px rgba(40,47,82,.08);font-weight:600}

/* charts */
.chart{position:relative;width:100%}
.chart svg{display:block;width:100%;height:auto;overflow:visible}
.chart text{font-family:var(--sans)}
.legend{display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:center;margin-top:14px;font-size:13px;color:#4b5567}
.legend button{display:inline-flex;align-items:center;gap:8px;border:1px solid transparent;background:none;padding:4px 10px;border-radius:16px;transition:opacity .2s,background .2s}
.legend button:hover{background:#f4f5f9}
.legend button.off{opacity:.38}
.legend .sw{width:24px;height:12px;border-radius:7px;position:relative}
.legend .sw::after{content:'';position:absolute;right:1px;top:1px;width:10px;height:10px;border-radius:50%;background:#fff;box-sizing:border-box;border:3px solid var(--k,currentColor)}
.legend .cat{display:inline-flex;align-items:center;gap:6px;color:#4b5567}
.legend .cat img{width:16px;height:16px;opacity:.75}
.tooltip{position:absolute;z-index:5;pointer-events:none;min-width:150px;padding:11px 14px;background:rgba(26,31,44,.94);color:#fff;border-radius:14px;font-size:12px;line-height:1.6;box-shadow:0 12px 30px rgba(20,24,40,.2);opacity:0;transform:translateY(6px);transition:opacity .15s,transform .15s}
.tooltip.show{opacity:1;transform:none}
.tooltip b{display:block;font-size:13px;margin-bottom:4px}
.tooltip .row{display:flex;justify-content:space-between;gap:16px}
.tooltip .row span:first-child{color:#b7bfd0;display:inline-flex;align-items:center;gap:6px}
.tooltip i{display:inline-block;width:8px;height:8px;border-radius:50%}

.bar{transform:scaleX(0);transform-box:fill-box;transform-origin:left center;transition:transform 1.1s cubic-bezier(.2,.8,.2,1)}
.vbar{transform:scaleY(0);transform-box:fill-box;transform-origin:center bottom;transition:transform .9s cubic-bezier(.2,.8,.2,1)}
.mark{opacity:0;transform:scale(.2);transform-box:fill-box;transform-origin:center;transition:opacity .4s,transform .5s cubic-bezier(.3,1.6,.5,1)}
.drawn .bar,.drawn .vbar{transform:none}
.drawn .mark{opacity:1;transform:none}
.row-g{transition:transform .7s cubic-bezier(.2,.8,.2,1),opacity .3s}
.row-g .hit{fill:transparent}
.row-g:hover .hit{fill:rgba(82,45,230,.045)}
.series-off{opacity:0!important;pointer-events:none}
.val-label{opacity:0;transition:opacity .5s .9s,transform .5s cubic-bezier(.2,.8,.2,1)}
.drawn .val-label.series-off{opacity:0!important}
.drawn .val-label{opacity:1}

.sr-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.cost-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.cost-pair .cost-sub{margin:0 0 6px;font-family:var(--sans);font-size:13.5px;font-weight:600;letter-spacing:0;line-height:1.4;color:#39445d}
.cost-pair .cost-sub small{font-size:12px;font-weight:400;color:var(--soft)}
@media(max-width:760px){.cost-pair{grid-template-columns:1fr}}
.sr-panel{position:relative;padding:14px 12px 8px;border:1px solid #eef0f5;border-radius:18px;background:#fcfcfe;transition:border-color .2s,box-shadow .2s,transform .2s}
.sr-panel:hover{border-color:#d9d2fb;box-shadow:0 10px 24px rgba(46,50,100,.06);transform:translateY(-2px)}
.sr-panel h5{margin:0 0 2px 4px;font-size:13px;font-weight:600;display:flex;justify-content:space-between;align-items:center}
.sr-panel h5 span{font-weight:500;font-size:11px;color:var(--soft)}
.sr-panel.empty{display:grid;place-items:center;text-align:center;color:var(--soft);font-size:12px;background:repeating-linear-gradient(135deg,#f7f8fb,#f7f8fb 8px,#f2f3f7 8px,#f2f3f7 16px)}
.pt{cursor:pointer;transition:r .15s}
.pt:hover{r:6}

/* protocol flow */
.protocol-wrap{overflow-x:auto;margin:6px -4px 0;padding:4px}
.protocol{display:block;width:100%;min-width:760px;height:auto;overflow:visible;font-family:var(--sans,inherit)}
.protocol text{text-anchor:middle;fill:#2c3240}
.protocol .start{text-anchor:start}
.protocol .t-title{font-size:16px;font-weight:700}
.protocol .t-title.sm{font-size:14px}
.protocol .t-body{font-size:13px;fill:#3b4252}
.protocol .t-body.muted,.protocol .t-foot,.protocol .t-arrow{fill:#7d8592}
.protocol .t-foot{font-size:12px}
.protocol .t-arrow{font-size:12px}
.protocol .t-arrow.purple{fill:var(--primary)}
.protocol .t-k{font-family:var(--serif);font-style:italic;font-size:32px;fill:#5020c0}
.protocol .box{fill:#f4f5f8;stroke:#4a5260;stroke-width:1.3}
.protocol .box.white{fill:#fff}
.protocol .box.ghost{fill:#f4f5f8;stroke:#9aa1ad}
.protocol .kbox{fill:#efecfd;stroke:#5020c0;stroke-width:1.6;stroke-linejoin:round}
.protocol .kbox-tab{stroke:#5020c0;stroke-width:1.2;fill:none}
.protocol .ln{fill:none;stroke:#3a404c;stroke-width:1.5}
.protocol .ln.purple{stroke:#5020c0;stroke-width:1.8}
.protocol .ln.dashed{stroke:#8a909a;stroke-dasharray:5 4}
.protocol .cross path{stroke:#3a404c;stroke-width:1.6;stroke-linecap:round}
.protocol .n{opacity:0;transform:translateY(6px);transition:opacity .5s ease,transform .6s cubic-bezier(.2,.8,.2,1);transition-delay:var(--d)}
.protocol.drawn .n{opacity:1;transform:none}
.protocol.drawn .ln.loop{stroke-dasharray:6 4;animation:p2-march 1s linear infinite}
@keyframes p2-march{to{stroke-dashoffset:-20}}
.protocol.drawn .k .kbox{animation:k-glow 2.8s ease-in-out 2.2s infinite}
.protocol .cross{transform-box:fill-box;transform-origin:center}
.protocol.drawn .back .cross path{animation:cross-pop .5s cubic-bezier(.3,1.6,.5,1) 2.2s both}
@keyframes k-glow{0%,100%{fill:#efecfd}50%{fill:#e2dbfb}}
@keyframes cross-pop{from{opacity:0;stroke-width:4}to{opacity:1;stroke-width:1.6}}
.dash-flow{stroke-dasharray:4 4;animation:dash 1s linear infinite}
@keyframes dash{to{stroke-dashoffset:-16}}
.two-factors{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:28px}
.factor{display:grid;grid-template-columns:56px 1fr;gap:18px;padding:26px;border-radius:24px;border:1px solid var(--line);background:linear-gradient(140deg,#f8f7ff,#fff 70%)}
.factor .ic{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;background:#fff;border:1px solid #e6e0f9;color:var(--primary);font-family:var(--serif);font-size:20px;font-weight:600}
.factor h4{font-size:18px;font-weight:600;line-height:1.45}
.factor p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.85}

/* knowledge package */
.kp-wrap{overflow-x:auto;margin:0 -4px;padding:18px 16px 6px 4px}
.kp{display:grid;grid-template-columns:minmax(0,1fr) 62px 176px;align-items:center;gap:0;min-width:760px}
.kp-box{position:relative;padding:16px 14px 14px;border:1.5px solid #7a5ff0;border-radius:4px 14px 14px 14px;background:linear-gradient(180deg,#f6f3ff,#f0ebff)}
.kp-box::before{content:'';position:absolute;left:-1.5px;top:-14px;width:12%;min-width:64px;height:14px;background:#f6f3ff;border:1.5px solid #7a5ff0;border-bottom:0;border-radius:5px 12px 0 0}
.kp-head{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-bottom:12px;align-items:baseline}
.kp-head strong{font-family:var(--serif);font-size:17px;color:var(--primary)}
.kp-head strong i{font-style:italic}
.kp-head span{font-size:11.5px;color:var(--soft)}
.kp-items{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px}
.kp-item{display:flex;flex-direction:column;align-items:center;border:1px solid #ddd5fb;background:#fff;border-radius:10px;padding:12px 6px 10px;text-align:center;cursor:pointer;transition:transform .25s,box-shadow .25s,border-color .25s,background .25s}
.kp-item svg{width:30px;height:30px;color:var(--primary);margin:0 auto;flex:none}
.kp-item strong{display:block;margin-top:8px;font-size:13px;line-height:1.25}
.kp-item small{display:block;margin-top:5px;font-size:10.5px;color:var(--muted);line-height:1.4}
.kp-item code{display:inline-block;margin-top:auto;padding:1px 7px;font-family:var(--mono);font-size:10px;border-radius:6px;background:var(--tint);color:#5b47c9;border:1px solid #ddd5fb}
.kp-item small{margin-bottom:8px}
.kp-item:hover,.kp-item.active{transform:translateY(-4px);border-color:#8e78ef;box-shadow:0 12px 26px rgba(82,45,230,.12)}
.kp-item.active{background:#fbfaff}
.kp-item.pulse{animation:kpPulse 1.4s ease}
@keyframes kpPulse{30%{border-color:var(--primary);box-shadow:0 0 0 5px rgba(82,45,230,.12)}}
.kp-link{display:flex;flex-direction:column;align-items:center;font-size:11px;color:var(--soft);padding:0 4px}
.kp-link svg{width:100%;height:16px;overflow:visible}
.kp-test{padding:12px;border:1px solid #c9ced8;border-radius:12px;background:#fff;box-shadow:5px -5px 0 -1px #fff,5px -5px 0 0 #c9ced8,10px -10px 0 -1px #fff,10px -10px 0 0 #c9ced8}
.kp-test > strong{font-size:13px}
.kp-gpt{margin-top:8px;padding:12px 8px;border:1px solid #c9ced8;border-radius:9px;background:#f5f6f8;text-align:center}
.kp-gpt b{font-size:14px}
.kp-gpt .verbs{margin-top:3px;font-size:11px;color:var(--soft)}
.kp-gpt .verbs span{transition:color .3s,font-weight .3s}
.kp-gpt .verbs span.on{color:var(--primary);font-weight:700}
.kp-obs{margin:22px 0 0;padding:8px;border:1px solid #c9ced8;border-radius:9px;background:#f5f6f8;text-align:center;font-size:11px;line-height:1.5;color:var(--muted);position:relative}
.kp-obs::before{content:'';position:absolute;left:50%;top:-20px;height:18px;border-left:1.5px solid #8a909a}
.kp-obs::after{content:'';position:absolute;left:calc(50% - 4px);top:-21px;border:4.5px solid transparent;border-bottom:6px solid #8a909a;border-top:0}
.kp-detail{margin-top:22px;display:grid;grid-template-columns:200px 1fr;gap:20px;padding:18px 22px;border-radius:18px;background:var(--tint-2);border:1px solid #ebe6fc;min-height:92px}
.kp-detail h5{margin:0;font-size:15px;color:var(--primary)}
.kp-detail p{font-size:14px;color:var(--muted);line-height:1.85}
.kp-detail .fade{animation:fadeUp .35s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(6px)}}

/* what still fails */
.fail-nav{margin-bottom:24px}
.fail-nav-head{display:flex;align-items:center;justify-content:flex-end;gap:16px;margin-bottom:10px}
.fail-step{display:flex;align-items:center;gap:8px}
.fail-step output{min-width:42px;text-align:center;font-size:13px;color:#39445d;font-variant-numeric:tabular-nums}
.fail-arrow{width:32px;height:32px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--primary);font-size:15px;line-height:1;transition:border-color .2s,background .2s}
.fail-arrow:hover{border-color:#cfc6fb;background:var(--tint-2)}
.fail-tabs{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}
#rw-set .fail-tabs,#bm-set .fail-tabs{grid-template-columns:repeat(4,minmax(0,1fr))}
.fail-tabs button{position:relative;display:flex;align-items:flex-start;gap:10px;padding:12px 14px 14px;border:1px solid var(--line);background:#fff;border-radius:16px;text-align:left;font-size:13.5px;line-height:1.35;color:#39445d;overflow:hidden;transition:border-color .2s,background .2s,box-shadow .2s,transform .2s}
.fail-tabs button span{flex-shrink:0;display:grid;place-items:center;width:24px;height:24px;border-radius:8px;background:#f1f3f7;font-size:11.5px;color:#667085;transition:background .2s,color .2s}
.fail-tabs button em{font-style:normal;display:block}
.fail-tabs button small{display:block;margin-bottom:2px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--soft)}
.fail-tabs button i{position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .35s ease}
.fail-tabs button:hover{border-color:#cfc6fb;transform:translateY(-1px);box-shadow:0 6px 18px rgba(82,45,230,.08)}
.fail-tabs button:hover span{background:var(--tint);color:var(--primary)}
.fail-tabs button.active{border-color:var(--primary);color:var(--primary);background:var(--tint-2);font-weight:600;box-shadow:0 8px 22px rgba(82,45,230,.12)}
.fail-tabs button.active span{background:var(--primary);color:#fff}
.fail-tabs button.active small{color:#8a78e8}
.fail-tabs button.active i{transform:scaleX(1)}
.fail-tabs button.nudge{animation:tab-nudge 1.1s ease-in-out 2}
@keyframes tab-nudge{50%{border-color:#a99af5;box-shadow:0 0 0 4px rgba(82,45,230,.12)}}
.fail-next{display:flex;align-items:center;gap:8px;margin:28px 0 0 auto;padding:10px 18px;border:1px solid #d9d1fb;border-radius:30px;background:#fff;color:var(--muted);font-size:13.5px;transition:border-color .2s,background .2s,color .2s}
.fail-next b{color:var(--primary);font-weight:600}
.fail-next span{color:var(--primary);transition:transform .2s}
.fail-next:hover{border-color:var(--primary);background:var(--tint-2);color:var(--ink)}
.fail-next:hover span{transform:translateX(3px)}
.fail-panel{display:none}
.fail-panel.active{display:block;animation:fadeUp .4s ease}
.fail-panel > .finding{margin-top:0}
.fail-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:36px;align-items:start}
.fail-layout > div:first-child{position:sticky;top:96px}
.fail-layout.stack{grid-template-columns:1fr;gap:24px}
.fail-layout.stack > div:first-child{position:static;display:grid;grid-template-columns:.8fr 1.2fr;grid-template-rows:auto 1fr;column-gap:36px;align-items:start}
.fail-layout.stack > div:first-child > .pill,.fail-layout.stack > div:first-child > h4{grid-column:1;justify-self:start;align-self:start}
.fail-layout.stack > div:first-child > .prose{grid-column:2;grid-row:1 / span 2;margin-top:0}
.fail-video{margin:0;padding:10px;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:0 10px 32px rgba(40,47,82,.04)}
.fail-video video{display:block;width:100%;aspect-ratio:16/9;border-radius:14px;background:#f4f5f8}
.fail-pager{min-width:0}
.fail-layout h4{font-size:24px;font-weight:600;line-height:1.4;letter-spacing:-.015em}
.fail-layout .prose{margin-top:14px}
.case-list{display:grid;gap:16px}
.case{padding:14px;border:1px solid #eceef5;border-radius:20px;background:#fff}
.case-title{display:flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;margin:0 2px 10px}
.case-title .pill{font-size:10px;padding:2px 9px}
.pair{display:grid;grid-template-columns:1fr 26px 1fr;align-items:center;gap:6px}
.pair figure{margin:0;position:relative;overflow:hidden;border-radius:12px;background:#eef0f5;cursor:zoom-in}
.pair img{width:100%;aspect-ratio:4/3;object-fit:cover}
.pair figcaption{position:absolute;left:8px;bottom:8px;right:8px;font-size:11px;color:#fff;background:rgba(20,22,35,.62);padding:3px 8px;border-radius:7px;width:fit-content;backdrop-filter:blur(4px)}
.pair figure.after figcaption{background:rgba(82,45,230,.85)}
.pair .arr{color:var(--primary);display:grid;place-items:center}
.pair .arr svg{width:22px;animation:nudge 1.6s ease-in-out infinite}
@keyframes nudge{50%{transform:translateX(4px)}}
.case p{margin:10px 2px 0;font-size:12.5px;color:var(--muted);line-height:1.75}
.insight-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:20px}
.insight-cards.row4{grid-template-columns:repeat(4,1fr)}
.stat-card{padding:18px 20px;border-radius:18px;background:#fff;border:1px solid var(--line)}
.stat-card .big{font-family:var(--serif);font-size:32px;color:var(--primary);letter-spacing:-.03em;line-height:1.2}
.stat-card .big small{font-size:16px}
.stat-card p{margin-top:6px;font-size:13px;color:var(--muted);line-height:1.7}
.implication{margin-top:34px;padding:26px 30px;border-radius:24px;background:linear-gradient(120deg,#f1edff,#f7fbff);border:1px solid #e6e0f9;display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:center}
.implication .ic{width:48px;height:48px;border-radius:14px;background:var(--primary);color:#fff;display:grid;place-items:center;font-family:var(--serif);font-size:22px}
.implication p{font-size:15px;line-height:1.85;color:#3d3a5c}

/* harness scatter */
.hx-chart{position:relative}
.hx{width:100%;height:auto;display:block}
.hx text{font-family:var(--sans)}
.hx-quad,.hx-cross{opacity:0;transition:opacity .8s}
.hx.drawn .hx-quad,.hx.drawn .hx-cross{opacity:1}
.hx-pt{cursor:default;opacity:0;transform:translate(var(--dx),var(--dy));transition:transform .9s cubic-bezier(.2,.8,.2,1),opacity .5s}
.hx.drawn .hx-pt{opacity:1;transform:none}
.hx-pt .hx-lbl{opacity:0;transition:opacity .5s .6s}
.hx.drawn .hx-pt .hx-lbl{opacity:1}
.hx.drawn .hx-pt.dim{opacity:.18;transition-delay:0s !important}
.hx-pt:hover rect{stroke-width:3.4}
.hx-link{stroke:#7c6ae6;stroke-width:1.6;stroke-dasharray:3 4;opacity:0;transition:opacity .2s;pointer-events:none}
.hx-link.on{opacity:1}
.hx-findings{margin-top:28px}
.hx-findings .card{display:flex;flex-direction:column;align-items:flex-start}
.hx-findings .card > p{flex:1}
.hx-findings .hx-stats{align-self:stretch;margin-bottom:0}
.hx-findings h4{margin:14px 0 10px;font-size:19px;line-height:1.45}
.hx-findings p{color:var(--muted);font-size:14.5px;line-height:1.85}
.hx-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}
.hx-stats span{display:flex;flex-direction:column;gap:2px;padding:12px 14px;border-radius:14px;background:#f7f6fc;font-size:12px;color:var(--soft)}
.hx-stats b{font-family:var(--serif);font-size:22px;font-weight:500;color:var(--primary)}
.hx-key{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:4px 16px;margin:12px 0 0;padding:0;list-style:none;font-size:12.5px;line-height:1.5;color:var(--muted)}
.hx-key li{display:flex;align-items:center;gap:7px;transition:opacity .3s}
.hx-key li.dim{opacity:.35}
.hx-key i{flex:none;width:9px;height:9px;margin:0 2px;border:2px solid var(--k);background:#fff}
.hx-key i.dia{transform:rotate(45deg)}
.hx-key b{flex:none;font-weight:600;color:var(--k)}

/* real world */
.departures{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.platform-table{margin-top:28px;border:1px solid var(--line);border-radius:22px;background:#fff;overflow:hidden}
.pt-row{display:grid;grid-template-columns:96px 1.05fr 40px 1.25fr 1.4fr;gap:18px;align-items:center;padding:14px 20px;border-bottom:1px solid #f0f2f6;transition:background .2s}
.pt-row:last-child{border-bottom:0}
.pt-row:not(.head):hover{background:#faf9ff}
.pt-row.head{background:#fafbfd;font-size:12px;font-weight:600;color:#4b5567;padding:10px 20px}
.pt-row img{width:96px;height:64px;object-fit:cover;border-radius:10px}
.pt-row strong{font-size:14px;display:block}
.pt-row small{font-size:12px;color:var(--soft)}
.pt-row .n,.pt-row.head span:nth-child(3){font-family:var(--serif);text-align:center}
.pt-row .n{font-size:20px;color:var(--primary)}
.pt-row .q{font-size:13.5px;color:#39445d}
.pt-row .t{font-size:12.5px;color:var(--muted)}
ul.t{margin:0;padding:0;list-style:none;display:grid;gap:4px}
ul.t li{position:relative;padding-left:14px;line-height:1.5}
ul.t li::before{content:"";position:absolute;left:2px;top:.62em;width:5px;height:5px;border-radius:50%;background:#b9acf6}
.finding{margin-top:64px}
.finding-head{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:end;margin-bottom:24px}
.finding-head .pill{margin-bottom:12px}
.finding-head h4{font-size:24px;font-weight:600;letter-spacing:-.015em;line-height:1.4}
.gauges{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
.gauge{display:grid;grid-template-columns:76px 1fr;gap:14px;align-items:center;padding:16px;border-radius:20px;background:#fff;border:1px solid var(--line)}
.gauge svg{width:76px;height:76px}
.gauge .ring-bg{fill:none;stroke:#f0edfd;stroke-width:8}
.gauge .ring{fill:none;stroke-width:8;stroke-linecap:round;transform:rotate(-90deg);transform-origin:center;transition:stroke-dashoffset 1.4s cubic-bezier(.2,.8,.2,1)}
.gauge .frac{font-family:var(--serif);font-size:15px;font-weight:600;fill:var(--ink)}
.gauge strong{font-size:14px;display:block;line-height:1.4}
.gauge small{font-size:12px;color:var(--soft);line-height:1.5;display:block;margin-top:3px}
.rw-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.rw-card{padding:14px;border-radius:20px;background:#fff;border:1px solid #eceef5;transition:box-shadow .2s,transform .2s}
.rw-card:hover{box-shadow:0 14px 30px rgba(46,50,100,.07);transform:translateY(-2px)}
.rw-card header{display:flex;align-items:center;gap:8px;margin:0 2px 10px;font-size:13px}
.rw-card header .id{color:var(--primary);font-weight:700}
.rw-card header strong{font-weight:600}
.rw-card header span.task{color:var(--soft);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rw-card header .chip{margin-left:auto;padding:2px 10px;border-radius:12px;background:#e4ebff;color:#3b5bcc;font-size:11.5px;font-weight:600;flex-shrink:0}
.strip{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.strip figure{margin:0;border-radius:10px;overflow:hidden;position:relative;cursor:zoom-in;background:#eef0f5}
.strip img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:filter .5s}
.strip figure::after{content:'';position:absolute;inset:0;border:2px solid transparent;border-radius:10px;transition:border-color .3s}
.strip.play figure.on::after{border-color:var(--primary)}
.strip.play figure:not(.on) img{filter:saturate(.75) brightness(.96)}
.strip.four{grid-template-columns:repeat(4,1fr)}
.strip.four img{aspect-ratio:5/3}
.strip figcaption{position:absolute;left:6px;bottom:6px;font-size:10.5px;color:#fff;background:rgba(20,22,35,.62);padding:2px 7px;border-radius:6px}
.av{display:grid;grid-template-columns:.85fr 1.15fr;gap:18px;align-items:start}
.av-col{padding:16px;border-radius:20px;background:#fff;border:1px solid #eceef5}
.av-col header{display:flex;align-items:center;gap:8px;font-size:13.5px;margin-bottom:10px}
.av-col header .pill{margin-left:auto}
.av-row{display:grid;gap:6px}
.av-row.two{grid-template-columns:repeat(2,1fr)}
.av-row.five{grid-template-columns:repeat(2,1fr);row-gap:10px}
.av-active{grid-column:1 / -1;display:grid;grid-template-columns:repeat(3,1fr);gap:6px;padding:6px;border:2px solid var(--primary);border-radius:14px;position:relative;margin-bottom:8px}
.av-active::after{content:'active vision';position:absolute;bottom:-11px;left:50%;transform:translateX(-50%);background:#fff;padding:0 8px;font-size:11px;font-weight:700;color:var(--primary)}
.av-active figure img{aspect-ratio:4/3}
.av-row figure,.av-active figure{margin:0;border-radius:9px;overflow:hidden;position:relative;cursor:zoom-in}
.av-row img,.av-active img{width:100%;aspect-ratio:4/3;object-fit:cover}
.av-active figure{animation:avSeq 4.5s infinite;opacity:.55}
.av-active figure:nth-child(2){animation-delay:1.5s}.av-active figure:nth-child(3){animation-delay:3s}
@keyframes avSeq{0%,30%{opacity:1}36%,100%{opacity:.55}}
.constraints{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:8px}
.constraint .k{font-family:var(--serif);font-size:30px;color:var(--primary);letter-spacing:-.03em;line-height:1.2}
.constraint .k small{font-size:15px;color:var(--soft);margin-left:4px;font-family:var(--sans)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch}
.split > .figure + .figure{margin-top:0}
.compare-bars{display:grid;gap:14px;margin-top:16px}
.cb{display:grid;grid-template-columns:150px 1fr 44px;gap:12px;align-items:center;font-size:13px}
.cb .track{height:12px;border-radius:8px;background:#eef0f5;overflow:hidden}
.cb .fill{height:100%;width:0;border-radius:8px;background:var(--primary);transition:width 1.2s cubic-bezier(.2,.8,.2,1)}
.drawn .cb .fill{width:var(--w)}
.cb b{text-align:right;font-family:var(--serif)}
.context-sources{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.context-sources span{padding:6px 12px;border-radius:12px;border:1px dashed #cfc6fb;font-size:12px;color:#4b4670;background:#fff}
.gallery-cta{margin-top:24px;display:flex;gap:12px;flex-wrap:wrap;align-items:center}

/* benchmark */
.ele-banner{display:grid;grid-template-columns:1.15fr .85fr;align-items:center;gap:36px;padding:34px 38px;margin-bottom:40px;border-radius:28px;background:#fff;border:1px solid #e6e0f9;box-shadow:0 18px 50px rgba(82,45,230,.07);overflow:hidden}
.ele-mark{display:inline-flex;align-items:center;gap:14px}
.ele-word{font-size:40px;font-weight:700;letter-spacing:-.055em;line-height:1;color:var(--ink)}
.ele-word i{font-style:normal;color:var(--primary)}
.ele-name{border-left:1px solid #dcd6f5;padding-left:14px;font-size:10.5px;line-height:1.45;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.ele-copy > p{margin-top:18px;font-size:15px;color:var(--muted);line-height:1.8;max-width:560px}
.ele-copy > p b{color:var(--ink)}
.ele-stats{display:flex;flex-wrap:wrap;gap:10px 28px;margin-top:20px}
.ele-stats span{display:flex;align-items:baseline;gap:6px;font-size:12.5px;color:var(--soft)}
.ele-stats b{font-size:24px;font-weight:500;color:var(--primary);letter-spacing:-.03em}
.ele-meta{display:flex;flex-direction:column;width:fit-content;max-width:100%}
.ele-actions{display:flex;flex-direction:column;align-items:center;gap:8px;margin-top:24px}
.ele-note{font-size:12px;color:var(--soft)}
.ele-pager{min-width:0}
.ele-banner.ele-solo{grid-template-columns:1fr;padding:18px}
.figure + .ele-banner{margin-top:28px}
.eg-wrap{position:relative}
.eg-view{aspect-ratio:16/9;overflow-x:auto;overflow-y:hidden;border-radius:16px;container-type:size;scrollbar-width:none;cursor:grab;outline:none}
.eg-view::-webkit-scrollbar{display:none}
.eg-view.dragging{cursor:grabbing;user-select:none}
.eg-track{display:flex;gap:6px;height:100%;width:max-content}
.eg-block{flex:0 0 auto;display:grid;grid-template-columns:repeat(12,minmax(0,1fr));grid-template-rows:repeat(6,minmax(0,1fr));gap:6px;width:calc(100cqh * 1.55);height:100%}
.eg-block[data-layout="feature-left"]>:nth-child(1){grid-area:1/1/5/8}
.eg-block[data-layout="feature-left"]>:nth-child(2){grid-area:1/8/3/13}
.eg-block[data-layout="feature-left"]>:nth-child(3){grid-area:3/8/7/13}
.eg-block[data-layout="feature-left"]>:nth-child(4){grid-area:5/1/7/4}
.eg-block[data-layout="feature-left"]>:nth-child(5){grid-area:5/4/7/8}
.eg-block[data-layout="feature-right"]>:nth-child(1){grid-area:3/6/7/13}
.eg-block[data-layout="feature-right"]>:nth-child(2){grid-area:5/1/7/6}
.eg-block[data-layout="feature-right"]>:nth-child(3){grid-area:1/1/5/6}
.eg-block[data-layout="feature-right"]>:nth-child(4){grid-area:1/10/3/13}
.eg-block[data-layout="feature-right"]>:nth-child(5){grid-area:1/6/3/10}
.eg-block[data-layout="wide"]>:nth-child(1){grid-area:1/1/4/9}
.eg-block[data-layout="wide"]>:nth-child(2){grid-area:1/9/4/13}
.eg-block[data-layout="wide"]>:nth-child(3){grid-area:4/1/7/5}
.eg-block[data-layout="wide"]>:nth-child(4){grid-area:4/5/7/9}
.eg-block[data-layout="wide"]>:nth-child(5){grid-area:4/9/7/13}
.eg-card{position:relative;min-width:0;min-height:0;overflow:hidden;border-radius:6px;background:#ebe7f6}
.eg-card video{display:block;width:100%;height:100%;object-fit:cover;object-position:var(--pos,50% 50%);pointer-events:none}
.eg-cap{position:absolute;left:8px;bottom:8px;max-width:calc(100% - 16px);font-size:11px;line-height:1.4;color:#fff;background:rgba(20,22,35,.62);padding:3px 8px;border-radius:6px;opacity:0;transition:opacity .25s;pointer-events:none}
.eg-card:hover .eg-cap{opacity:1}
.eg-arrow{position:absolute;top:50%;z-index:2;width:38px;height:38px;margin-top:-19px;border-radius:50%;border:1px solid #e4defc;background:rgba(255,255,255,.92);box-shadow:0 8px 24px rgba(40,47,82,.16);color:var(--primary);font-size:15px;cursor:pointer;backdrop-filter:blur(6px)}
.eg-arrow.prev{left:12px}
.eg-arrow.next{right:12px}
.eg-note{margin-top:10px;font-size:12.5px;line-height:1.6;color:var(--soft);text-align:center}
@media (hover:none){.eg-cap{opacity:1}}
.demo-shell{overflow:hidden;border:1px solid #e6e0f9;border-radius:16px;background:#fdfcff}
.demo-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:50px;padding:7px 12px 7px 18px;border-bottom:1px solid #eeeaf8;background:#fff}
.demo-identity{display:flex;align-items:center;gap:10px;min-width:0;font-size:13px;font-weight:600;color:var(--ink)}
.status-dot{width:7px;height:7px;border-radius:50%;background:var(--primary);flex-shrink:0;box-shadow:0 0 0 3px rgba(82,45,230,.14)}
.demo-status{min-width:0;padding-left:11px;margin-left:2px;border-left:1px solid #e3def3;font-size:12px;font-weight:400;color:var(--soft);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.expand-button{display:inline-flex;align-items:center;gap:7px;min-height:34px;padding:6px 12px;border:1px solid transparent;border-radius:999px;background:transparent;font:inherit;font-size:12.5px;color:var(--ink);cursor:pointer;transition:background .2s,border-color .2s,color .2s}
.expand-button:not(:disabled):hover{background:var(--tint);border-color:#d9d1fb;color:var(--primary)}
.expand-button:disabled{opacity:.45;cursor:default}
.demo-stage{position:relative;width:100%;aspect-ratio:16/9;background:#f0eadd;isolation:isolate}
.demo-placeholder{position:absolute;inset:0;z-index:2;overflow:hidden;background:#f0eadd}
.scene-poster{display:block;width:100%;height:100%;object-fit:contain}
.demo-stage[data-state="loading"] .scene-poster{object-fit:cover;filter:blur(14px) saturate(1.05);transform:scale(1.06);opacity:.6}
.demo-load{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);cursor:pointer;white-space:nowrap}
.demo-load:hover{transform:translate(-50%,calc(-50% - 2px))}
.demo-stage:not([data-state="idle"]) .demo-load{display:none}
.demo-stage iframe{position:absolute;inset:0;z-index:1;display:block;width:100%;height:100%;border:0;background:#f0eadd}
.demo-error{position:absolute;inset:0;z-index:4;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:30px;text-align:center;background:#fdfcff}
.demo-error[hidden]{display:none}
.demo-error h3{font-family:var(--serif);font-size:28px;font-weight:500;letter-spacing:-.03em}
.demo-error p{max-width:420px;font-size:14px;line-height:1.7;color:var(--muted)}
.demo-error code{padding:2px 7px;border:1px solid var(--line);border-radius:6px;background:#fff;font-size:12.5px;color:var(--primary)}
.demo-link{font-size:13px;color:var(--primary)}
.demo-shell.is-expanded{position:fixed;inset:12px;z-index:200;display:flex;flex-direction:column;border-color:#cfc5fa;box-shadow:0 0 0 40px rgba(20,18,40,.66)}
.demo-shell.is-expanded .demo-stage{flex:1;min-height:0;aspect-ratio:auto}
.demo-shell:fullscreen{inset:0;width:100%;height:100%;border:0;border-radius:0;box-shadow:none}
@media (max-width:680px){.expand-button>span{display:none}.demo-stage{aspect-ratio:4/3}}
.ele-slides{display:grid}
.ele-slide{grid-area:1/1;align-self:center;opacity:0;visibility:hidden;transform:translateX(16px);transition:opacity .45s,transform .45s,visibility 0s .45s}
.ele-slide.active{opacity:1;visibility:visible;transform:none;transition:opacity .45s,transform .45s}
.ele-video{margin:0}
.ele-video video{display:block;width:100%;aspect-ratio:16/9;border-radius:16px;background:#0f1020;object-fit:cover}
.ele-video figcaption{margin-top:10px;font-size:12.5px;line-height:1.6;color:var(--soft);text-align:center}
.ele-nav{display:flex;align-items:center;justify-content:center;gap:6px;margin-top:14px}
.ele-dots{display:contents}
.ele-dot{padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:#fff;font:inherit;font-size:12.5px;color:var(--muted);cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.ele-dot.active{background:var(--tint);border-color:#d9d1fb;color:var(--primary);font-weight:600}
.ele-arrow{width:30px;height:30px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--muted);cursor:pointer;font-size:14px}
.ele-arrow:hover,.ele-dot:hover{border-color:#cfc5fa;color:var(--primary)}
.ele-visual{position:relative;display:block;margin:0;border-radius:18px;overflow:hidden}
.ele-visual img{width:100%;height:auto;display:block;transition:transform .6s cubic-bezier(.2,.7,.2,1),filter .4s}
.ele-visual::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 55%,rgba(82,45,230,.16),rgba(82,45,230,0) 65%);opacity:0;transition:opacity .4s}
.ele-3d{position:absolute;left:50%;top:50%;z-index:1;display:inline-flex;align-items:center;gap:10px;padding:10px 18px 10px 10px;border-radius:999px;background:rgba(255,255,255,.92);box-shadow:0 10px 30px rgba(82,45,230,.18);border:1px solid #e4defc;font-size:13.5px;font-weight:600;color:var(--ink);white-space:nowrap;opacity:0;transform:translate(-50%,-40%);transition:opacity .35s,transform .35s;backdrop-filter:blur(6px)}
.ele-3d i{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--primary);color:#fff;font-style:normal;font-size:11px;letter-spacing:.04em}
.ele-3d b{color:var(--primary);font-weight:600}
.ele-visual:hover img,.ele-visual:focus-visible img{transform:scale(1.035)}
.ele-visual:hover::after,.ele-visual:focus-visible::after{opacity:1}
.ele-visual:hover .ele-3d,.ele-visual:focus-visible .ele-3d{opacity:1;transform:translate(-50%,-50%)}
@media (hover:none){.ele-3d{opacity:1;top:auto;bottom:14px;transform:translateX(-50%)}}

.pipeline{display:grid;grid-template-columns:1fr;gap:18px;align-items:start}
.pipeline .pipe-steps{grid-template-columns:repeat(6,1fr)}
.pipeline .pipe-steps button{grid-template-columns:1fr;gap:6px;align-content:start}
.pipe-img{position:relative;border-radius:18px;overflow:hidden;border:1px solid #eceef5}
.pipe-img .hot{position:absolute;border:2px solid transparent;border-radius:12px;transition:border-color .25s,background .25s,box-shadow .25s}
.pipe-img .hot.on{border-color:var(--primary);background:rgba(82,45,230,.06);box-shadow:0 0 0 4px rgba(82,45,230,.12)}
.pipe-steps{display:grid;gap:8px}
.pipe-steps button{display:grid;grid-template-columns:28px 1fr;gap:12px;text-align:left;padding:10px 12px;border:1px solid transparent;background:none;border-radius:14px;transition:background .2s,border-color .2s}
.pipe-steps button span{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:#efecfd;color:var(--primary);font-size:12px;font-weight:700}
.pipe-steps button strong{font-size:14px;display:block}
.pipe-steps button small{font-size:12.5px;color:var(--muted);line-height:1.6;display:block;margin-top:2px}
.pipe-steps button.on{background:#fff;border-color:#ddd5fb;box-shadow:0 8px 20px rgba(46,50,100,.06)}
.pipe-steps button.on span{background:var(--primary);color:#fff}

.clock{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}
.clock .fail-video{padding:0;border:0;box-shadow:none;background:none}
.clock-stage{position:relative;border-radius:18px;overflow:hidden;background:#111;aspect-ratio:5/3}
.clock-stage img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;pointer-events:none;transition:opacity .5s}
.clock-stage img.on{opacity:1;pointer-events:auto}
.clock-stage .state{position:absolute;pointer-events:none;left:14px;bottom:14px;background:rgba(20,22,35,.7);color:#fff;font-size:13px;padding:6px 12px;border-radius:10px;backdrop-filter:blur(4px)}
.clock-time{font-family:var(--serif);font-size:44px;color:var(--primary);letter-spacing:-.03em;line-height:1}
.clock-time small{font-size:18px;color:var(--soft);margin-left:4px}
.clock-legend{display:flex;gap:16px;margin-top:30px;font-size:12px;color:var(--muted);flex-wrap:wrap}
.clock-legend i{display:inline-block;width:14px;height:8px;border-radius:3px;margin-right:6px;vertical-align:middle}
.household{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.household .strip.four{grid-template-columns:repeat(2,1fr)}
.hh-video video{display:block;width:100%;aspect-ratio:16/9;border-radius:12px;background:#f4f5f8}
.hh-case{padding:16px;border-radius:20px;background:#fff;border:1px solid #eceef5}
.hh-case header{display:flex;gap:10px;align-items:center;margin:0 2px 10px;font-size:14px}
.hh-case header b{color:var(--primary)}
.hh-case header .pill{margin-left:auto}
.hh-case .strip figure{cursor:default}
.hh-caps{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin-top:6px}
.hh-caps span{font-size:11.5px;color:var(--muted);text-align:center;line-height:1.5}

/* conclusion & footer */
.final-cta{background:radial-gradient(ellipse at 80% 45%,#e6efff,transparent 65%),radial-gradient(ellipse at 5% 30%,#eee8ff,transparent 60%),#f9faff}
.final-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:72px;align-items:center}
.final-title{margin-top:22px;font-size:34px;font-weight:600;line-height:1.5;letter-spacing:-.02em}
.final-title em{color:var(--primary)}
.final-copy{font-size:15px;line-height:1.95;color:var(--muted)}
.final-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.site-footer{background:#eff0f2;color:#667085;text-align:center;padding-top:38px}
.footer-brand img{width:84px;height:auto;margin:auto}
.footer-brand p{margin-top:14px;font-size:13px}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:28px;padding:22px 0;border-top:1px solid #dfe2e8;font-size:12px}
.footer-links{display:flex;gap:22px}
.footer-links a:hover{color:var(--primary)}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:90;display:none;align-items:center;justify-content:center;padding:40px;background:rgba(17,20,32,.82);backdrop-filter:blur(6px);cursor:zoom-out}
.lightbox.open{display:flex;animation:fadeUp .25s ease}
.lightbox img{max-width:min(1500px,100%);max-height:100%;border-radius:14px;box-shadow:0 30px 80px rgba(0,0,0,.4);background:#fff}
.lightbox button{position:absolute;top:18px;right:22px;width:42px;height:42px;border-radius:50%;border:0;background:rgba(255,255,255,.14);color:#fff;font-size:22px}
[data-zoom]{cursor:zoom-in}

/* reveal */
.reveal-enabled [data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .65s ease,transform .65s ease}
.reveal-enabled [data-reveal].is-visible{opacity:1;transform:none}

@media(min-width:1400px){.shell{width:min(1180px,calc(100% - 190px))}}
@media(max-width:1250px){
  .section-toc{position:sticky;top:0;display:flex;justify-content:center;gap:10px;background:rgba(249,250,252,.94);backdrop-filter:blur(12px);padding:7px 12px;border-bottom:1px solid #e9ebf2}
  .section-toc a{padding:3px 13px}
  html{scroll-padding-top:56px}
  .signal-value{font-size:32px}
}
@media(max-width:1060px){
  .fail-tabs,#rw-set .fail-tabs,#bm-set .fail-tabs{grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:minmax(190px,1fr);overflow-x:auto;padding-bottom:4px}
  .ele-banner{grid-template-columns:1fr}
  .sr-grid{grid-template-columns:repeat(2,1fr)}
  .fail-layout,.pipeline,.clock{grid-template-columns:1fr}
  .insight-cards.row4{grid-template-columns:repeat(2,1fr)}
  .fail-layout > div:first-child{position:static}
  .fail-layout.stack > div:first-child{display:block}
  .fail-layout.stack > div:first-child > .prose{margin-top:14px}
  .gauges{grid-template-columns:repeat(2,1fr)}
  .pipeline .pipe-steps{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:960px){
  .hero-grid{grid-template-columns:1fr;min-height:auto;padding:55px 0;gap:38px}
  .section-header,.finding-head{display:block}
  .section-intro{margin-top:15px;max-width:680px}
  .problem-grid,.final-layout,.split,.spec,.av{grid-template-columns:1fr;gap:28px}
  .grid-3,.departures,.constraints{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .signal-strip{grid-template-columns:repeat(3,1fr);row-gap:16px}
  .signal:nth-child(3){border-right:0}
  .two-factors,.rw-grid{grid-template-columns:1fr}
  .pt-row{grid-template-columns:80px 1fr 30px;}
  .pt-row .q,.pt-row .t{grid-column:2/4}
  .pt-row.head{display:none}
  .pt-row img{width:80px;height:56px}
  .section-title,.problem-statement,.final-title{font-size:30px}
}
@media(max-width:680px){
  .shell{width:calc(100% - 36px)}
  .section{padding:58px 0}
  .section-toc span{display:none}
  .section-toc{gap:4px}.section-toc a{font-size:11.5px;padding:3px 8px}
  .hero h1{font-size:clamp(28px,8vw,40px)}
  .system-map{height:360px}
  .map-node{width:92px;height:72px;font-size:12px}
  .signal-strip{grid-template-columns:repeat(2,1fr)}
  .signal{border-right:0!important}
  .sr-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .kp-detail{grid-template-columns:1fr}
  .grid-2,.grid-4,.gauges,.insight-cards,.insight-cards.row4{grid-template-columns:1fr}
  .figure{padding:20px 16px}
  .strip.four{grid-template-columns:repeat(2,1fr)}
  .household{grid-template-columns:1fr}
  .hh-caps{display:none}
  .footer-inner{display:block}
  .footer-links{justify-content:center;margin-top:12px}
  .hx-stats{grid-template-columns:1fr;gap:8px}
  .hx-stats span{flex-direction:row;align-items:baseline;gap:10px;padding:10px 14px}
  .hx-stats b{flex:none;font-size:20px}
  .pipeline .pipe-steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:760px){
  .ele-nav{display:grid;grid-template-columns:30px minmax(0,1fr) 30px;gap:8px}
  .ele-dots{display:flex;flex-wrap:wrap;justify-content:center;gap:6px}
  .ele-dot{padding:5px 11px;font-size:12px}
}
@media(max-width:480px){
  .pipeline .pipe-steps{grid-template-columns:1fr;gap:4px}
  .pipeline .pipe-steps button{grid-template-columns:28px 1fr;gap:12px}
}