.rp{--rn0:#06101E;--rn1:#0B1828;--rn2:#12233A;--rblue:#8EC5FF;--rmint:#7FE3D0;--rink:#2A2A2A;--rmut:#5E6166;--rrule:rgba(42,42,42,.16);
  --rpaper:#F4F4F4;--rcard:#fff;--hs:"Besley",Georgia,serif;--hb:"Inter",system-ui,sans-serif;color:var(--rink);font-family:var(--hb)}
.rp-wrap{max-width:1240px;margin:0 auto;padding-left:max(var(--gut,24px),env(safe-area-inset-left,0px));padding-right:max(var(--gut,24px),env(safe-area-inset-right,0px))}
.rp-progress{position:fixed;left:0;right:0;top:0;height:3px;z-index:60;pointer-events:none}
.rp-progress i{display:block;height:100%;width:100%;background:var(--rblue);transform-origin:0 50%;transform:scaleX(0)}

.rp-open{position:relative;overflow:hidden;background:radial-gradient(120% 90% at 85% 10%,#12304F 0,var(--rn0) 60%);color:#fff;padding:170px 0 90px}
.rp-bgline{position:absolute;inset:auto 0 0 0;width:100%;height:62%;opacity:.5;pointer-events:none}
.rp-bgline polyline{fill:none;stroke:var(--rblue);stroke-width:2;vector-effect:non-scaling-stroke;stroke-dasharray:var(--len,3000);stroke-dashoffset:0}
.rp-js .rp-bgline polyline{stroke-dashoffset:var(--len,3000);transition:stroke-dashoffset 2.6s cubic-bezier(.3,.6,.2,1) .2s}
.rp-js .rp-open.on .rp-bgline polyline{stroke-dashoffset:0}
.rp-open .rp-wrap{position:relative}
.rp-back{display:flex;flex-wrap:wrap;gap:10px 28px;font:400 14px/1.4 var(--hb);color:rgba(255,255,255,.72);margin:0 0 34px}
.rp-back a{color:#fff;text-decoration:none}
.rp-back a:hover{text-decoration:underline}
.rp-open h1{font:400 clamp(40px,5.6vw,80px)/1.04 var(--hs);letter-spacing:-.02em;max-width:15ch;margin:0;text-wrap:balance}
.rp-lead{font:300 clamp(18px,1.6vw,22px)/1.5 var(--hb);color:rgba(255,255,255,.86);max-width:46ch;margin:28px 0 0}
.rp-tiles{list-style:none;margin:64px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.rp-tiles li{background:rgba(18,35,58,.78);border:1px solid rgba(142,197,255,.22);border-radius:16px;padding:22px 20px 24px;backdrop-filter:blur(6px)}
.rp-tiles b{display:block;font:400 clamp(40px,4vw,56px)/1 var(--hs);color:var(--rblue);font-variant-numeric:tabular-nums;margin-bottom:12px}
.rp-tiles span{display:block;font:400 15px/1.45 var(--hb);color:rgba(255,255,255,.84)}

.rp-intro{background:var(--rpaper);padding:80px 0 30px}
.rp-intro .rp-wrap{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:6%}
.rp-toc{position:sticky;top:100px;align-self:start}
.rp-toc p{font:500 13px/1 var(--hb);color:var(--rmut);margin:0 0 14px}
.rp-toc ol{list-style:none;margin:0;padding:0;border-top:1px solid var(--rrule)}
.rp-toc li{border-bottom:1px solid var(--rrule)}
.rp-toc a{display:flex;gap:14px;padding:11px 0;text-decoration:none;font:400 16px/1.35 var(--hb);color:var(--rink)}
.rp-toc a span{font-variant-numeric:tabular-nums;color:var(--rmut);min-width:2ch}
.rp-toc a:hover,.rp-toc a.on{color:#1E5C9E}
.rp-lede p{font:300 clamp(20px,1.8vw,25px)/1.5 var(--hb)}
.rp-lede p+p{margin-top:22px}

.rp-ch{background:var(--rpaper);padding:70px 0}
.rp-ch:nth-of-type(even){background:#fff}
.rp-ch .rp-wrap{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:6%}
.rp-ch-h{align-self:start;position:sticky;top:100px}
.rp-n{display:block;font:400 15px/1 var(--hb);color:#1E5C9E;margin-bottom:14px;font-variant-numeric:tabular-nums}
.rp-ch h2{font:400 clamp(30px,3.2vw,46px)/1.1 var(--hs);letter-spacing:-.015em;margin:0;text-wrap:balance}
.rp-body p{font:300 18px/1.62 var(--hb);margin:0 0 18px;max-width:64ch}
.rp-body a{color:#1E5C9E}
.rp-body b{font-weight:600}
.rp-ch:nth-of-type(even) .rp-fig{background:var(--rpaper)}

.rp-fig{background:var(--rcard);border-radius:18px;padding:24px 24px 18px;margin:30px 0 34px}
.rp-fig figcaption b{display:block;font:500 16px/1.4 var(--hb);margin-bottom:14px}
.rp-plot{position:relative;min-height:40px}
.rp-src{font:400 13px/1.45 var(--hb)!important;color:var(--rmut);margin:14px 0 0!important}
.rp-data{width:100%;border-collapse:collapse;font:400 13px/1.4 var(--hb);font-variant-numeric:tabular-nums}
.rp-data caption{text-align:left;font-weight:500;padding-bottom:8px}
.rp-data th,.rp-data td{border-bottom:1px solid var(--rrule);padding:6px 8px 6px 0;text-align:left}
.rp-fig{position:relative}
.rp-tw{overflow-x:auto}
.rp-fig.drawn .rp-tw{position:absolute;left:0;top:0;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
.rp-legend{display:flex;flex-wrap:wrap;gap:6px 18px;margin:0 0 12px;padding:0;list-style:none;font:400 13px/1.3 var(--hb);color:var(--rink)}
.rp-legend li{display:flex;align-items:center;gap:7px}
.rp-legend i{width:12px;height:12px;border-radius:3px;background:var(--c)}
.rp-legend li.hl{font-weight:600}

.rp-svg{display:block;width:100%;overflow:visible}
.rp-svg .grid line{stroke:rgba(42,42,42,.12)}
.rp-svg .ax text{font:400 12px var(--hb);fill:var(--rmut)}
.rp-svg .ser path{fill:none;stroke-width:2;stroke-linejoin:round;stroke-linecap:round}
.rp-svg .ser.hl path{stroke-width:3.5}
.rp-svg .ser text{font:500 12px var(--hb);fill:var(--rink)}
.rp-svg .ser circle{stroke:#fff;stroke-width:2}
.rp-svg .cross{stroke:rgba(42,42,42,.35);stroke-dasharray:3 3}
.rp-tip{position:absolute;pointer-events:none;background:var(--rink);color:#fff;font:400 13px/1.45 var(--hb);padding:9px 11px;border-radius:10px;
  min-width:140px;transform:translate(-50%,-100%);margin-top:-10px;opacity:0;transition:opacity .12s;z-index:2;white-space:nowrap}
.rp-tip.on{opacity:1}
.rp-tip b{display:block;font-weight:600;margin-bottom:3px}
.rp-tip i{display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:6px;background:var(--c)}

.rp-hbar{display:grid;gap:9px}
.rp-hrow{display:grid;grid-template-columns:minmax(120px,30%) minmax(0,1fr);align-items:center;gap:14px;font:400 14px/1.3 var(--hb)}
.rp-hrow .lab{color:var(--rink)}
.rp-track{position:relative;display:grid;gap:3px}
.rp-bar{position:relative;height:20px;display:flex;align-items:center}
.rp-bar i{display:block;height:100%;width:var(--w);background:var(--c);border-radius:0 4px 4px 0;transform-origin:0 50%}
.rp-bar span{margin-left:8px;font:500 13px var(--hb);color:var(--rink);font-variant-numeric:tabular-nums;white-space:nowrap}
.rp-hbar.grouped .rp-bar{height:14px}
.rp-ref{position:absolute;top:-6px;bottom:-6px;left:var(--x);border-left:1.5px dashed rgba(42,42,42,.55);pointer-events:none}
.rp-fig .rp-ref-l{font:400 13px/1.4 var(--hb);color:var(--rmut);margin:0 0 12px;max-width:none}
.rp-stack{display:grid;gap:8px}
.rp-srow{display:grid;grid-template-columns:minmax(120px,30%) minmax(0,1fr);gap:14px;align-items:center;font:400 14px/1.3 var(--hb)}
.rp-srow.gap{margin-top:10px}
.rp-segs{display:flex;height:26px;gap:2px}
.rp-segs i{display:flex;align-items:center;justify-content:center;width:var(--w);background:var(--c);color:#fff;font:600 12px var(--hb);font-style:normal;
  border-radius:3px;overflow:hidden;transform-origin:0 50%}
.rp-cols{display:flex;align-items:flex-end;gap:12px;height:240px;padding-top:24px}
.rp-col{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;font:400 13px/1.3 var(--hb)}
.rp-col i{display:block;width:100%;max-width:90px;height:var(--h);background:#1E5C9E;border-radius:4px 4px 0 0;transform-origin:50% 100%}
.rp-col b{font:600 14px var(--hb);margin-bottom:6px;font-variant-numeric:tabular-nums}
.rp-col span{margin-top:8px;color:var(--rmut);text-align:center}
.rp-cols-x{font:400 12px var(--hb);color:var(--rmut);text-align:center;margin-top:6px}
.rp-js .rp-fig:not(.on) .rp-bar i,.rp-js .rp-fig:not(.on) .rp-segs i{transform:scaleX(0)}
.rp-js .rp-fig:not(.on) .rp-col i{transform:scaleY(0)}
.rp-js .rp-fig .rp-bar i,.rp-js .rp-fig .rp-segs i,.rp-js .rp-fig .rp-col i{transition:transform 1.1s cubic-bezier(.3,.6,.2,1) var(--d,0s)}

.rp-do .a-steps{display:grid;gap:0;margin:0;border-top:1px solid var(--rrule)}
.rp-do .a-steps>div{display:grid;grid-template-columns:48px minmax(0,1fr);column-gap:12px;padding:22px 0;border-bottom:1px solid var(--rrule)}
.rp-do .a-steps .dot{grid-row:span 2;font:400 26px/1 var(--hs);color:#1E5C9E}
.rp-do .a-steps b{font:400 24px/1.25 var(--hs);margin-bottom:8px}
.rp-do .a-steps p{margin:0;font:300 17px/1.55 var(--hb)}
.rp-do .rp-body>p:last-child{font:400 clamp(20px,1.8vw,24px)/1.45 var(--hs);margin-top:34px}

.rp-cta{background:var(--rn0);color:#fff;padding:80px 0;text-align:center}
.rp-cta h2{font:400 clamp(30px,3.4vw,48px)/1.1 var(--hs);margin:0 0 16px}
.rp-cta p{font:300 18px/1.55 var(--hb);color:rgba(255,255,255,.84);max-width:52ch;margin:0 auto 28px}
.rp-btn{display:inline-flex;align-items:center;gap:10px;background:var(--rblue);color:var(--rn0);font:600 16px/1 var(--hb);padding:16px 22px;border-radius:12px;text-decoration:none}
.rp-btn:hover{background:#fff}
.rp-btn svg{width:16px;height:16px}
.rp-method .rp-body p{font:400 15px/1.6 var(--hb);color:var(--rmut)}
.rp-method h2{font-size:clamp(24px,2.4vw,32px)}

@media (max-width:900px){
  .rp-open{padding:130px 0 60px}
  .rp-tiles{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:44px}
  .rp-intro .rp-wrap,.rp-ch .rp-wrap{grid-template-columns:minmax(0,1fr);gap:28px}
  .rp-toc,.rp-ch-h{position:static}
  .rp-ch{padding:54px 0}
}
@media (max-width:560px){
  .rp-tiles{grid-template-columns:minmax(0,1fr)}
  .rp-tiles li{display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px;align-items:center;padding:16px}
  .rp-tiles b{margin:0;font-size:38px}
  .rp-fig{padding:18px 14px 14px;margin-inline:-6px}
  .rp-hrow,.rp-srow{grid-template-columns:minmax(0,1fr);gap:5px}
  .rp-cols{gap:6px;height:200px}
  .rp-col span{font-size:11px}
  .rp-body p{font-size:17px}
}
@media (prefers-reduced-motion:reduce){
  .rp-js .rp-bgline polyline,.rp-js .rp-fig .rp-bar i,.rp-js .rp-fig .rp-segs i,.rp-js .rp-fig .rp-col i{transition:none!important}
}