.chap[data-astro-cid-za674z44]{grid-template-columns:minmax(0,1fr);display:grid;position:relative}.stage[data-astro-cid-za674z44],.steps[data-astro-cid-za674z44],.bar[data-astro-cid-za674z44]{grid-area:1/1}.stage[data-astro-cid-za674z44]{top:var(--head-h);height:calc(100svh - var(--head-h));align-self:start;position:sticky;overflow:hidden}.stage-canvas[data-astro-cid-za674z44]{position:absolute;inset:0 0 0 30%}.stage-canvas[data-astro-cid-za674z44] canvas{width:100%;height:100%;display:block;position:absolute;inset:0}@media (width>=901px){.stage-canvas[data-astro-cid-za674z44] canvas{-webkit-mask-image:linear-gradient(90deg,#0000,#000 8%);mask-image:linear-gradient(90deg,#0000,#000 8%)}}.stage-stills[data-astro-cid-za674z44],.still[data-astro-cid-za674z44]{width:100%;height:100%;position:absolute;inset:0}.still[data-astro-cid-za674z44]{object-fit:contain;transition:opacity .6s}.still--dark[data-astro-cid-za674z44]{opacity:0}[data-theme=dark] .still--dark[data-astro-cid-za674z44]{opacity:1}[data-theme=dark] .still--light[data-astro-cid-za674z44]{opacity:0}.chap[data-astro-cid-za674z44].is-live .stage-canvas[data-astro-cid-za674z44]:not(.is-still) .stage-stills[data-astro-cid-za674z44]{visibility:hidden}.stage-stills[data-astro-cid-za674z44]{z-index:1;pointer-events:none}.stage-canvas[data-astro-cid-za674z44] .stage-callouts{pointer-events:none;position:absolute;inset:0}.stage-canvas[data-astro-cid-za674z44] .stage-callouts svg{width:100%;height:100%;position:absolute;inset:0;overflow:visible}.stage-canvas[data-astro-cid-za674z44] polyline{fill:none;stroke:var(--brand-hi);stroke-width:1px}.stage-canvas[data-astro-cid-za674z44] circle{fill:var(--brand-hi)}.stage-canvas[data-astro-cid-za674z44] .stage-callouts svg>*,.stage-canvas[data-astro-cid-za674z44] .callout{opacity:0;transition:opacity .35s}.stage-canvas[data-astro-cid-za674z44] .stage-callouts .is-on{opacity:1}.stage-canvas[data-astro-cid-za674z44] .callout{white-space:nowrap;gap:4px;padding-left:2px;display:grid;position:absolute;top:0;left:0}.stage-canvas[data-astro-cid-za674z44] .callout-k{font:600 12px/1 var(--label);letter-spacing:.12em;text-transform:uppercase;color:var(--brand-hi)}.stage-canvas[data-astro-cid-za674z44] .callout-v{color:var(--fg);font-size:15px;line-height:1.2}.stage-canvas[data-astro-cid-za674z44].is-operation canvas{cursor:crosshair}.stage-canvas[data-astro-cid-za674z44] .op-layer{pointer-events:none;opacity:0;transition:opacity .5s;position:absolute;inset:0}.stage-canvas[data-astro-cid-za674z44] .op-layer.is-on{opacity:1}.stage-canvas[data-astro-cid-za674z44] .op-label{white-space:nowrap;opacity:0;font:600 12px/1 var(--label);letter-spacing:.12em;text-transform:uppercase;color:var(--brand-hi);transition:opacity .3s;position:absolute;top:0;left:0}.stage-canvas[data-astro-cid-za674z44] .op-label.is-on{opacity:1}.stage-canvas[data-astro-cid-za674z44] .op-place{color:var(--fg)}.stage-canvas[data-astro-cid-za674z44] .op-range.is-warn{color:var(--warn);opacity:1}.stage-canvas[data-astro-cid-za674z44] .op-scale{justify-items:end;gap:5px;display:grid;position:absolute;bottom:96px;right:24px}.stage-canvas[data-astro-cid-za674z44] .op-scale-bar{border:1px solid var(--fg);border-top:0;height:6px;display:block}.stage-canvas[data-astro-cid-za674z44] .op-scale-t{font:600 12px/1 var(--label);letter-spacing:.08em;color:var(--muted)}.stage-canvas[data-astro-cid-za674z44] .op-credit{color:var(--muted);visibility:hidden;margin:0;font-size:12px;line-height:1.3;position:absolute;bottom:70px;right:24px}.stage-canvas[data-astro-cid-za674z44] .op-credit.is-on{visibility:visible}.stage-canvas[data-astro-cid-za674z44] .op-credit a{color:inherit}@media (prefers-reduced-motion:reduce){.stage-canvas[data-astro-cid-za674z44] .op-layer,.stage-canvas[data-astro-cid-za674z44] .op-label,.op-places[data-astro-cid-za674z44] 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button[data-astro-cid-za674z44]:before{content:"";background:var(--brand-hi);width:2px;transition:transform .2s;position:absolute;top:-1px;bottom:-1px;left:0;transform:scaleY(0)}.op-places[data-astro-cid-za674z44] button[data-astro-cid-za674z44]:hover{color:var(--fg);background:var(--surface)}.op-places[data-astro-cid-za674z44] button[data-astro-cid-za674z44][aria-current]{color:var(--fg)}.op-places[data-astro-cid-za674z44] button[data-astro-cid-za674z44][aria-current]:before{transform:scaleY(1)}.op-n[data-astro-cid-za674z44],.op-d[data-astro-cid-za674z44]{font:600 12px/1 var(--label);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-variant-numeric:tabular-nums}.op-places[data-astro-cid-za674z44] button[data-astro-cid-za674z44][aria-current] .op-d[data-astro-cid-za674z44]{color:var(--brand-hi)}.op-view[data-astro-cid-za674z44]{border:1px solid var(--line);justify-self:start;display:inline-flex}.op-view[data-astro-cid-za674z44] button[data-astro-cid-za674z44]{cursor:pointer;font:600 12px/1 var(--label);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);background:0 0;border:0;padding:10px 14px}.op-view[data-astro-cid-za674z44] button[data-astro-cid-za674z44]+button[data-astro-cid-za674z44]{border-left:1px solid var(--line)}.op-view[data-astro-cid-za674z44] button[data-astro-cid-za674z44]:hover{color:var(--fg)}.op-view[data-astro-cid-za674z44] button[data-astro-cid-za674z44][aria-pressed=true]{color:var(--fg);background:var(--surface);box-shadow:inset 0 -2px 0 var(--brand-hi)}.op-places[data-astro-cid-za674z44] button[data-astro-cid-za674z44]:focus-visible,.op-view[data-astro-cid-za674z44] button[data-astro-cid-za674z44]:focus-visible{outline:2px solid var(--brand-hi);outline-offset:-2px}.op-status[data-astro-cid-za674z44]{min-height:1.4em;font-size:15px}.op-note[data-astro-cid-za674z44]{color:var(--muted);font-size:13px}@media (prefers-reduced-motion:reduce){.still[data-astro-cid-za674z44],.stage-canvas[data-astro-cid-za674z44] .stage-callouts svg>*,.stage-canvas[data-astro-cid-za674z44] .callout{transition:none}}.expansion[data-astro-cid-za674z44]{letter-spacing:-.01em;color:var(--muted);margin:-8px 0 16px;font-size:clamp(18px,1.6vw,22px)}.expansion[data-astro-cid-za674z44] b[data-astro-cid-za674z44]{color:var(--fg);font-weight:700}.tag[data-astro-cid-za674z44]{font:600 13px/1 var(--label);letter-spacing:.12em;text-transform:uppercase;color:var(--brand-hi);margin:0 0 12px}.bar[data-astro-cid-za674z44]{z-index:3;padding-inline:max(24px, env(safe-area-inset-left));align-self:end;position:sticky;bottom:20px}.bar[data-astro-cid-za674z44] ol[data-astro-cid-za674z44]{background:var(--bg);max-width:1312px;box-shadow:0 0 0 4px var(--bg);gap:4px;margin:0 auto;padding:0;list-style:none;display:flex}.bar[data-astro-cid-za674z44] li[data-astro-cid-za674z44]{flex:1 1 0;min-width:0}.bar[data-astro-cid-za674z44] a[data-astro-cid-za674z44]{height:36px;font:600 13px/1 var(--label);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);background:var(--surface);align-items:center;gap:8px;padding:0 10px;text-decoration:none;display:flex;position:relative;overflow:hidden}.bar[data-astro-cid-za674z44] a[data-astro-cid-za674z44]:before{content:"";background:var(--brand-hi);transform-origin:0;height:2px;transform:scaleX(var(--p));position:absolute;top:0;left:0;right:0}.bar[data-astro-cid-za674z44] a[data-astro-cid-za674z44]>span[data-astro-cid-za674z44]{white-space:nowrap;position:relative}.bar[data-astro-cid-za674z44] a[data-astro-cid-za674z44][aria-current],.bar[data-astro-cid-za674z44] a[data-astro-cid-za674z44]:hover{color:var(--fg)}.bar[data-astro-cid-za674z44] .seg-n[data-astro-cid-za674z44]{opacity:.7}.steps[data-astro-cid-za674z44]{z-index:1;pointer-events:none;position:relative}.step[data-astro-cid-za674z44]{min-height:92svh;padding-inline:max(24px, env(safe-area-inset-left));align-items:center;display:flex}.step-card[data-astro-cid-za674z44]{pointer-events:auto;max-width:400px;padding:24px 0}.step-card[data-astro-cid-za674z44] .h2[data-astro-cid-za674z44]{font-size:clamp(26px,2.6vw,38px)}.step[data-astro-cid-za674z44]:first-child{min-height:80svh}.step[data-astro-cid-za674z44]:last-child{min-height:100svh}.step[data-astro-cid-za674z44]#ch-operation{align-items:flex-start;padding-top:12svh;padding-bottom:88px}.specs[data-astro-cid-za674z44]{grid-template-columns:minmax(0,1fr) minmax(0,1.6fr);gap:40px;display:grid}.draft[data-astro-cid-za674z44]{font:600 13px/1 var(--label);letter-spacing:.1em;text-transform:uppercase;color:#c2410c;margin:0 0 14px}.spec-list[data-astro-cid-za674z44]{border-top:1px solid var(--fg);margin:0}.spec-list[data-astro-cid-za674z44] div[data-astro-cid-za674z44]{border-bottom:1px solid var(--line);grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);gap:16px;padding:14px 0;display:grid}.spec-list[data-astro-cid-za674z44] dt[data-astro-cid-za674z44]{font:600 14px/1.3 var(--label);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.spec-list[data-astro-cid-za674z44] dd[data-astro-cid-za674z44]{margin:0}@media (width>=1361px){.step[data-astro-cid-za674z44]{padding-inline:calc(50vw - 656px)}}@media (width<=900px){.stage[data-astro-cid-za674z44]{z-index:2;background:var(--bg);height:54svh;box-shadow:0 1px 0 var(--line)}.stage-canvas[data-astro-cid-za674z44]{inset:0 0 52px}.stage-canvas[data-astro-cid-za674z44] .callout-v{font-size:13px}.stage-canvas[data-astro-cid-za674z44] .op-scale{bottom:44px;right:16px}.stage-canvas[data-astro-cid-za674z44] .op-credit{text-align:right;font-size:11px;bottom:6px;left:16px;right:16px}.steps[data-astro-cid-za674z44]{padding-top:54svh}.step[data-astro-cid-za674z44],.step[data-astro-cid-za674z44]:first-child{align-items:flex-start;min-height:52svh}.step[data-astro-cid-za674z44]:last-child{min-height:46svh}.step[data-astro-cid-za674z44]#ch-operation{padding-top:0}.step-card[data-astro-cid-za674z44]{max-width:none;padding:28px 0}.bar[data-astro-cid-za674z44]{top:calc(var(--head-h) + 54svh - 40px);align-self:start;margin-top:calc(54svh - 40px);bottom:auto}.bar[data-astro-cid-za674z44] a[data-astro-cid-za674z44]{justify-content:center;height:30px;padding:0 6px}.bar[data-astro-cid-za674z44] .seg-t[data-astro-cid-za674z44]{display:none}.bar[data-astro-cid-za674z44] a[data-astro-cid-za674z44][aria-current] .seg-t[data-astro-cid-za674z44]{display:inline}.bar[data-astro-cid-za674z44] li[data-astro-cid-za674z44]:has(a[aria-current]){flex:none}.specs[data-astro-cid-za674z44]{grid-template-columns:1fr;gap:16px}}