.fa{--fa-ink:#0b1220;--fa-ink-2:#334058;--fa-muted:#667085;--fa-faint:#9aa3b2;--fa-rule:#dfe4ee;--fa-rule-soft:#eaeef5;--fa-paper:#f5f8fd;--fa-paper-2:#eaf0f9;--fa-blue:#175cff;--fa-blue-ink:#1249d6;--fa-blue-l:#dbe6ff;--fa-cyan:#10a8cf;--fa-cyan-l:#d4f1f8;--fa-green:#15956f;--fa-green-ink:#0f7456;--fa-green-l:#d7f1e8;--fa-violet:#6b4fd8;--fa-violet-l:#e8e3fb;--fa-amber:#c46a10;--fa-amber-l:#fbead6;--fa-red:#d23c4f;--fa-red-l:#fadfe3;--fa-navy:#0b1f4d;--fa-xrp:#0e8fb0;--fa-xrp-l:#dff3f8;--fa-grad:linear-gradient(135deg, #175cff 0%, #10a8cf 55%, #15956f 100%);--fa-shadow:0 1px 2px #0b12200a, 0 10px 30px -18px #0b12202e;--fa-shell:1180px;--fa-sans:var(--font-geist-sans), "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Noto Sans CJK JP", "Yu Gothic UI", "Meiryo", system-ui, sans-serif;--fa-mono:var(--font-geist-mono), ui-monospace, "SF Mono", Menlo, monospace;color:var(--fa-ink);font-family:var(--fa-sans);-webkit-font-smoothing:antialiased;background:#fff;font-size:15px;line-height:1.6}.fa *,.fa :before,.fa :after{box-sizing:border-box}.fa a{color:inherit;text-decoration:none}.fa p,.fa h1,.fa h2,.fa h3,.fa figure,.fa blockquote{margin:0}.fa ul,.fa ol{margin:0;padding:0;list-style:none}.fa b,.fa strong{font-weight:800}.fa em,.fa i{font-style:normal}.fa-shell{width:100%;max-width:var(--fa-shell);margin:0 auto;padding:0 20px}html:has(.fa){scroll-behavior:smooth;scroll-padding-top:64px}@media (prefers-reduced-motion:reduce){html:has(.fa){scroll-behavior:auto}}@supports (animation-timeline:view()){@media (prefers-reduced-motion:no-preference){.fa-rv{animation:linear both fa-rise;animation-timeline:view();animation-range:entry entry 40%}}}@keyframes fa-rise{0%{opacity:.35;transform:translateY(16px)}to{opacity:1;transform:none}}@media (prefers-reduced-motion:no-preference){.fa .fa-flow{animation:1.2s linear infinite fa-dash}.fa .fa-flow--slow{animation-duration:2.4s}.fa .fa-pulse{animation:2.4s ease-in-out infinite fa-pulse}.fa .fa-blink{animation:1.6s steps(2,jump-none) infinite fa-blink}}@keyframes fa-dash{to{stroke-dashoffset:-20px}}@keyframes fa-pulse{0%,to{opacity:1}50%{opacity:.45}}@keyframes fa-blink{50%{opacity:.35}}.fa-pill{letter-spacing:.03em;white-space:nowrap;vertical-align:middle;border:1px solid;border-radius:999px;align-items:center;gap:6px;padding:4px 9px;font-size:11.5px;font-weight:700;line-height:1.1;display:inline-flex}.fa-pill:before{content:"";background:currentColor;border-radius:50%;width:6px;height:6px}.fa-pill--fact{color:var(--fa-green-ink);background:#15956f10;border-color:#15956f59}.fa-pill--mech{color:var(--fa-blue-ink);background:#175cff0d;border-color:#175cff4d}.fa-pill--hyp{color:var(--fa-violet);background:#6b4fd80f;border-color:#6b4fd859}.fa-pill--open{color:var(--fa-amber);background:#c46a100f;border-color:#c46a1059}.fa-pill--model{color:var(--fa-muted);background:#6670850d;border-color:#66708559}.fa-tag{white-space:nowrap;border-radius:5px;align-items:center;padding:1px 6px;font-size:10.5px;font-weight:800;line-height:1.5;display:inline-flex}.fa-tag--fact{color:var(--fa-green-ink);background:var(--fa-green-l)}.fa-tag--mech{color:var(--fa-blue-ink);background:var(--fa-blue-l)}.fa-tag--hyp{color:var(--fa-violet);background:var(--fa-violet-l)}.fa-tag--open{color:#8f4c08;background:var(--fa-amber-l)}.fa-tag--model{color:var(--fa-muted);background:#eef1f6}.fa-hero{isolation:isolate;background:radial-gradient(900px 520px at 10% -10%,#175cff14,#0000 60%),radial-gradient(700px 420px at 95% 0,#10a8cf12,#0000 60%);padding:28px 0 10px;position:relative;overflow:clip}.fa-hero:before{content:"";z-index:-1;pointer-events:none;background-image:repeating-linear-gradient(0deg,#0b122008 0 1px,#0000 1px 40px),repeating-linear-gradient(90deg,#0b122008 0 1px,#0000 1px 40px);position:absolute;inset:0;-webkit-mask-image:linear-gradient(#000,#0009 45%,#0000);mask-image:linear-gradient(#000,#0009 45%,#0000)}.fa-hero__kicker{font-family:var(--fa-mono);letter-spacing:.14em;color:var(--fa-blue);font-size:11.5px;font-weight:700}.fa-hero__h1{letter-spacing:-.01em;max-width:980px;font-size:clamp(26px,3.6vw,40px);font-weight:900;line-height:1.25;margin-top:8px!important}.fa-hero__h1 em{background:var(--fa-grad);color:#0000;-webkit-background-clip:text;background-clip:text}.fa-hero__lead{max-width:860px;color:var(--fa-ink-2);font-size:15.5px;line-height:1.8;margin-top:12px!important}.fa-hero__lead b{color:var(--fa-ink)}.fa-hero__meta{font-family:var(--fa-mono);color:var(--fa-muted);flex-wrap:wrap;align-items:center;gap:6px 14px;font-size:11.5px;display:flex;margin-top:12px!important}.fa-hero__legend{font-family:var(--fa-sans);flex-wrap:wrap;gap:4px;display:inline-flex}.fa-hero__legend .fa-pill{padding:2px 7px;font-size:10.5px}.fa-tiles{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:8px;display:grid;margin-top:14px!important}.fa-tiles li{border:1px solid var(--fa-rule);background:#fff;border-radius:12px;flex-direction:column;gap:2px;padding:10px 12px;display:flex}.fa-tiles b{font-family:var(--fa-mono);color:var(--fa-ink);font-size:22px;line-height:1.15}.fa-tiles span{color:var(--fa-muted);font-size:11.5px;line-height:1.45}.fa-tiles li.is-fact{border-top:3px solid var(--fa-green)}.fa-tiles li.is-mech{border-top:3px solid var(--fa-blue)}.fa-tiles li.is-hyp{border-top:3px solid var(--fa-violet)}.fa-tiles li.is-open{border-top:3px solid var(--fa-amber)}.fa-tiles li.is-model{border-top:3px solid var(--fa-faint)}.fa-toc{z-index:40;-webkit-backdrop-filter:saturate(140%)blur(8px);backdrop-filter:saturate(140%)blur(8px);border-bottom:1px solid var(--fa-rule-soft);background:#ffffffec;position:sticky;top:0}.fa-toc__row{scrollbar-width:none;gap:4px;padding-top:7px;padding-bottom:7px;display:flex;overflow-x:auto}.fa-toc__row::-webkit-scrollbar{display:none}.fa-toc__a{height:30px;color:var(--fa-ink-2);white-space:nowrap;border-radius:8px;flex:none;align-items:center;gap:6px;padding:0 10px;font-size:12.5px;font-weight:700;display:inline-flex}.fa-toc__a:hover{background:var(--fa-paper);color:var(--fa-ink)}.fa-toc__a b{font-family:var(--fa-mono);color:var(--fa-blue);font-size:11px}.fa-toc__a--top{background:var(--fa-navy);color:#fff!important}.fa-answer{padding:16px 0 6px;scroll-margin-top:60px}.fa-answer__box{background:linear-gradient(#fbfcff,#fff 30%);border:1.5px solid #c9d6ee;border-radius:20px;flex-direction:column;gap:10px;padding:16px 18px 14px;display:flex;box-shadow:0 1px 2px #0b12200a,0 24px 60px -34px #175cff66}.fa-answer__head{flex-wrap:wrap;align-items:baseline;gap:4px 12px;display:flex}.fa-answer__kicker{font-family:var(--fa-mono);letter-spacing:.12em;color:var(--fa-blue);flex-basis:100%;font-size:11px;font-weight:800}.fa-answer__title{flex:20em;font-size:clamp(17px,2.1vw,21px);font-weight:900;line-height:1.4}.fa-answer__pills{flex-wrap:wrap;gap:4px;display:flex}.fa-answer__body{min-width:0}.fa-answer__point{border-left:4px solid var(--fa-blue);background:#175cff0c;border-radius:4px 10px 10px 4px;font-size:14.5px;font-weight:800;line-height:1.55;padding:9px 12px!important}.fa-answer__point b{color:var(--fa-blue-ink)}.fa-answer__src{color:var(--fa-muted);font-size:11px;line-height:1.5}.fa-chapsec{padding-bottom:4px}.fa-chap{border-top:2px solid var(--fa-ink);flex-wrap:wrap;align-items:baseline;gap:2px 12px;margin-top:30px;padding:12px 0 10px;scroll-margin-top:60px;display:flex}.fa-chap__no{font-family:var(--fa-mono);background:var(--fa-grad);color:#0000;-webkit-background-clip:text;background-clip:text;font-size:34px;font-weight:700;line-height:1}.fa-chap__title{font-size:clamp(19px,2.4vw,24px);font-weight:900;line-height:1.25}.fa-chap__q{color:var(--fa-blue-ink);font-size:13px;font-weight:800}.fa-grid{grid-template-columns:repeat(3,minmax(0,1fr));grid-auto-flow:dense;align-items:stretch;gap:12px;display:grid}.fa-card{border:1px solid var(--fa-rule);min-width:0;box-shadow:var(--fa-shadow);background:#fff;border-radius:16px;flex-direction:column;gap:8px;padding:12px 14px 10px;scroll-margin-top:70px;display:flex}.fa-card--s2{grid-column:span 2}.fa-card--s3{grid-column:1/-1}.fa-card__head{flex-wrap:wrap;align-items:baseline;gap:2px 8px;display:flex}.fa-card__no{font-family:var(--fa-mono);color:var(--fa-blue);font-size:18px;font-weight:800;line-height:1}.fa-card__title{flex:10em;font-size:15.5px;font-weight:900;line-height:1.35}.fa-card__pills{flex-wrap:wrap;gap:3px;display:flex}.fa-card__pills .fa-pill{padding:2px 6px;font-size:10px}.fa-card__body{flex:auto;align-items:center;min-width:0;display:grid}.fa-card__body>div{gap:8px;min-width:0;display:grid}.fa-card__point{border-left:4px solid var(--fa-blue);background:#175cff0c;border-radius:4px 10px 10px 4px;font-size:13px;font-weight:700;line-height:1.5;padding:7px 10px!important}.fa-card__point b{color:var(--fa-blue-ink)}.fa-card__src{color:var(--fa-muted);font-size:10.5px;line-height:1.45}@media (max-width:1099px){.fa-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.fa-card--s2,.fa-card--s3{grid-column:1/-1}}@media (max-width:719px){.fa-grid{grid-template-columns:1fr}.fa-answer__box{padding:12px 10px 10px}}@media (max-width:559px){.fa-card{padding:12px 10px 10px}}.fa-svg{width:100%;height:auto;display:block;overflow:visible}.fa-svg text{font-family:var(--fa-sans)}.fa-ico{vertical-align:middle;flex:none;display:inline-block}.fa .t-xs{fill:var(--fa-muted);font-size:10px;font-weight:700}.fa .t-s{fill:var(--fa-muted);font-size:11.5px;font-weight:700}.fa .t-b{fill:var(--fa-ink);font-weight:800}.fa .t-w{fill:#fff;font-weight:800}.fa .t-blue{fill:var(--fa-blue-ink);font-weight:800}.fa .t-green{fill:var(--fa-green-ink);font-weight:800}.fa .t-violet{fill:var(--fa-violet);font-weight:800}.fa .t-amber{fill:var(--fa-amber);font-weight:800}.fa .t-red{fill:var(--fa-red);font-weight:800}.fa .t-xrp{fill:var(--fa-xrp);font-weight:800}.fa .t-l{fill:var(--fa-ink);font-size:14px;font-weight:900}.fa .t-big{font-family:var(--fa-mono);fill:var(--fa-ink);font-size:26px;font-weight:800}.fa .t-mono{font-family:var(--fa-mono)}.fa-scroll{overflow-x:auto}@media (max-width:719px){.fa-scroll>.fa-svg{min-width:640px}.fa-card .fa-svg .t-xs{font-size:11px}}.fa-waffle{grid-template-columns:repeat(10,1fr);gap:2px;width:100%;max-width:180px;display:grid}.fa-waffle i{aspect-ratio:1;background:#e3e9f3;border-radius:2px}.fa-waffle--blue i.is-hot{background:var(--fa-blue)}.fa-waffle--amber i.is-hot{background:var(--fa-amber)}.fa-waffle--xrp i.is-hot{background:var(--fa-xrp)}.fa-waffle--red i.is-hot{background:var(--fa-red)}.fa-steps{align-items:stretch;gap:16px;display:flex}.fa-steps li{border:1px solid var(--fa-rule);border-top:3px solid var(--fa-blue);background:var(--fa-paper);border-radius:10px;flex-direction:column;flex:1 1 0;align-items:flex-start;gap:3px;min-width:0;padding:9px 10px;display:flex;position:relative}.fa-steps li:not(:last-child):after{content:"";border-top:2px solid var(--fa-faint);border-right:2px solid var(--fa-faint);width:10px;height:10px;position:absolute;top:50%;right:-13px;transform:translateY(-50%)rotate(45deg)}.fa-steps li>b{background:var(--fa-blue);color:#fff;width:20px;height:20px;font-family:var(--fa-mono);border-radius:6px;place-items:center;font-size:11px;display:inline-grid}.fa-steps li strong{font-size:13px;line-height:1.35}.fa-steps li span{color:var(--fa-muted);font-size:11px;line-height:1.45}.fa-steps li.is-xrp{border-top-color:var(--fa-xrp);background:var(--fa-xrp-l)}.fa-steps li.is-green{border-top-color:var(--fa-green)}.fa-steps li.is-amber{border-top-color:var(--fa-amber)}.fa-steps li.is-gray{border-top-color:var(--fa-faint);opacity:.8}@media (max-width:719px){.fa-steps{flex-direction:column;gap:12px}.fa-steps li:not(:last-child):after{inset:auto auto -11px 18px;transform:rotate(135deg)}}.fa-breaks{padding:30px 0 4px}.fa-breaks__box{background:#fff8f6;border:1px solid #f0c9c2;border-radius:18px;padding:16px 18px}.fa-breaks h2{align-items:center;gap:8px;font-size:17px;font-weight:900;display:flex;margin-bottom:10px!important}.fa-breaks h2 span{background:var(--fa-red);color:#fff;border-radius:6px;place-items:center;width:22px;height:22px;font-size:12px;display:inline-grid}.fa-breaks ol{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 18px;display:grid}.fa-breaks li{grid-template-columns:24px 1fr;align-items:start;gap:8px;display:grid}.fa-breaks li>b{font-family:var(--fa-mono);color:var(--fa-red);font-size:14px}.fa-breaks li strong{font-size:13.5px;line-height:1.45;display:block}.fa-breaks li span{color:var(--fa-ink-2);font-size:12.5px;line-height:1.6;display:block}.fa-breaks__foot{color:var(--fa-muted);font-size:12px;margin-top:10px!important}.fa-breaks__foot a{color:var(--fa-blue-ink);text-underline-offset:3px;font-weight:800;text-decoration:underline}@media (max-width:719px){.fa-breaks ol{grid-template-columns:1fr}}.fa-src{padding:30px 0 40px;scroll-margin-top:60px}.fa-src h2{font-size:17px;font-weight:900}.fa-src__lead{color:var(--fa-ink-2);font-size:12.5px;line-height:1.9;margin-top:8px!important}.fa-src__lead .fa-pill{margin:0 2px;padding:1px 7px;font-size:10.5px}.fa-src__list{counter-reset:fa-src;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px;display:grid;margin-top:12px!important}.fa-src__list li{border-top:1px solid var(--fa-rule-soft);counter-increment:fa-src;grid-template-columns:26px 72px 1fr auto;align-items:baseline;gap:6px;padding:6px 0;font-size:12px;line-height:1.5;display:grid}.fa-src__list li:before{content:counter(fa-src);font-family:var(--fa-mono);color:var(--fa-faint);font-size:11px}.fa-src__org{color:var(--fa-ink-2);font-weight:800}.fa-src__list a{color:var(--fa-blue-ink);text-underline-offset:3px;-webkit-text-decoration:underline #1249d64d;text-decoration:underline #1249d64d}.fa-src__list a:hover{text-decoration-color:currentColor}.fa-src__date{font-family:var(--fa-mono);color:var(--fa-muted);white-space:nowrap;font-size:10.5px}.fa-src__disc{color:var(--fa-muted);font-size:11.5px;margin-top:12px!important}@media (max-width:859px){.fa-src__list{grid-template-columns:1fr}.fa-src__list li{grid-template-columns:22px minmax(0,1fr);row-gap:1px}.fa-src__list li:before{grid-row:1/4}.fa-src__list li>*{overflow-wrap:anywhere;grid-column:2;min-width:0}}