/* =====================================================================
   /lab/ : the villa laboratory chapter (sibling of /device/)
   Colour meaning: amber = deuterium / gas / the thing to look at,
   orange = power and drive, crimson = signal and charge,
   purple-ink = fiber, controls, comparisons.
   ===================================================================== */

/* ---------- shared figure frame (same as /device/) ---------- */
.fig { border: 1px solid var(--line); border-radius: 10px; background: var(--bg-deep); overflow: hidden; margin: 0; }
.fig__bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 11px 16px; border-bottom: 1px solid var(--line); font: 500 11.5px/1.3 var(--font-mono); letter-spacing: 0.03em; color: var(--ink-3); text-transform: uppercase; }
.fig__tag { color: var(--amber); }
.fig__name { color: var(--ink-2); text-align: right; }
.fig__cap { padding: 12px 16px 14px; border-top: 1px solid var(--line); font: 400 12px/1.6 var(--font-mono); color: var(--ink-3); }

.lb-intro { max-width: 1000px; margin-bottom: clamp(40px, 5vw, 72px); }
.lb-intro .display-2 { text-wrap: balance; }
.lb-intro .lead { margin-top: clamp(20px, 2.4vw, 32px); max-width: 58ch; }

.lb-more { margin-top: clamp(24px, 3vw, 40px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.lb-more summary { display: flex; align-items: baseline; gap: 14px; padding: 18px 0; cursor: pointer; list-style: none; font: 400 15px/1.4 var(--font-text); color: var(--ink-2); }
.lb-more summary::-webkit-details-marker { display: none; }
.lb-more summary::after { content: "+"; margin-left: auto; font: 400 22px/1 var(--font-display); color: var(--purple-ink); }
.lb-more[open] summary::after { content: "−"; }
.lb-more summary:hover { color: var(--ink); }
.lb-more__k { font: 500 11.5px/1 var(--font-mono); color: var(--purple-ink); white-space: nowrap; }
.lb-more__body { padding-bottom: 26px; max-width: none; }

/* ---------- 0. hero ---------- */
.lb-hero { position: relative; isolation: isolate; min-height: min(calc(100vh - var(--header-h)), 960px); display: flex; flex-direction: column; justify-content: space-between; padding-bottom: clamp(28px, 4vw, 56px); overflow: hidden; }
.lb-hero__media { position: absolute; inset: 0; z-index: -1; background: radial-gradient(70% 60% at 75% 45%, rgba(217, 22, 86, 0.35), rgba(100, 13, 95, 0.3) 50%, var(--bg) 85%); }
.lb-hero__media img { width: 100%; height: 100%; object-fit: cover; object-position: 70% 50%; }
.lb-hero__media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(25, 25, 25, 0.82) 0%, rgba(25, 25, 25, 0.5) 34%, rgba(25, 25, 25, 0) 58%), linear-gradient(180deg, rgba(25, 25, 25, 0.35) 0%, transparent 25%, transparent 60%, var(--bg) 100%); }
.lb-hero__inner { padding-top: clamp(20px, 3vw, 40px); }
.lb-hero__inner .crumbs { max-width: 640px; }
.lb-hero__h1 { font: 400 clamp(64px, 9.6vw, 164px)/0.86 var(--font-display); letter-spacing: var(--track-display); margin-top: clamp(16px, 3vw, 48px); max-width: 7ch; }
.lb-hero__lead { font: 400 clamp(19px, 1.7vw, 25px)/1.38 var(--font-text); color: var(--ink); max-width: 31ch; margin-top: clamp(24px, 3vw, 40px); letter-spacing: -0.012em; text-wrap: pretty; text-shadow: 0 1px 18px rgba(0, 0, 0, 0.5); }
.lb-facts { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); border-top: 1px solid var(--line-2); margin-top: clamp(40px, 6vw, 96px); background: linear-gradient(180deg, rgba(25, 25, 25, 0.55), rgba(25, 25, 25, 0.85)); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.lb-facts a { display: grid; gap: 6px; padding: 16px 12px 6px 0; text-decoration: none; }
.lb-facts b { font: 400 clamp(36px, 3.6vw, 58px)/0.9 var(--font-display); letter-spacing: var(--track-display); color: var(--ink); white-space: nowrap; transition: color 0.2s; }
.lb-facts span { font: 400 11px/1.35 var(--font-mono); color: var(--ink-2); text-transform: uppercase; letter-spacing: 0.03em; }
.lb-facts a:hover b { color: var(--amber); }

/* ---------- 1. rules ---------- */
.lb-rulelist { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; }
.lb-rule { --c: var(--amber); position: relative; padding: 28px clamp(16px, 2vw, 28px) 8px 0; border-top: 6px solid var(--c); margin-right: 4px; }
.lb-rule--orange { --c: var(--orange); }
.lb-rule--crimson { --c: var(--crimson); }
.lb-rule--purple { --c: var(--purple); }
.lb-rule__n { font: 400 clamp(48px, 5vw, 80px)/0.9 var(--font-display); letter-spacing: var(--track-display); color: var(--c); }
.lb-rule--purple .lb-rule__n { color: var(--purple-ink); }
.lb-rule__t { font: 400 clamp(22px, 2vw, 30px)/1.06 var(--font-display); letter-spacing: -0.03em; margin-top: 22px; text-wrap: balance; }
.lb-rule__p { font: 400 15.5px/1.6 var(--font-text); color: var(--ink-2); margin-top: 12px; }
.lb-rules__chips { margin-top: 28px; }

/* ---------- 2. floor plan (signature) ---------- */
.fp__layers { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.fp__layer { display: inline-flex; align-items: center; gap: 10px; font: 500 12.5px/1 var(--font-mono); color: var(--ink-2); padding: 11px 14px; border: 1px solid var(--line-2); border-radius: 999px; transition: color 0.2s, border-color 0.2s, background 0.2s; min-height: 40px; }
.fp__layer:hover { color: var(--ink); border-color: var(--ink-3); }
.fp__layer.is-on { color: #121212; background: var(--ink); border-color: var(--ink); }
.fp__sw { width: 18px; height: 4px; border-radius: 2px; }
.fp__sw--all { background: var(--stripes); }
.fp__sw--gas { background: var(--amber); }
.fp__sw--sig { background: linear-gradient(90deg, #ff4d83 0 50%, #d58be0 50%); }
.fp__sw--ring { background: #fff; }
.fp__sw--gnd { background: linear-gradient(90deg, #ff7a2e 0 50%, #c2c2c2 50%); }
.fp__body { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr); gap: clamp(20px, 3vw, 44px); align-items: start; }
.fp__svg { width: 100%; height: auto; }
.fp-floor { font: 500 12px var(--font-mono); letter-spacing: 0.08em; fill: var(--ink-3); }
.fp-north path { fill: none; stroke: var(--ink-2); stroke-width: 2; }
.fp-north text { font: 500 14px var(--font-mono); fill: var(--ink-2); }
.fp-room { fill: rgba(255, 255, 255, 0.02); cursor: pointer; transition: fill 0.25s; outline: none; }
.fp-room:hover, .fp-room:focus-visible { fill: rgba(255, 178, 0, 0.1); }
.fp-room.is-on { fill: rgba(255, 178, 0, 0.14); }
.fp-room:focus-visible { stroke: var(--amber); stroke-width: 2; }
.fp-room--store { fill: url(#fpCage); }
.fp-hall { fill: url(#fpHatch); pointer-events: none; }
.fp-walls path, .fp-walls rect { fill: none; stroke: #8e8e8e; stroke-width: 2; pointer-events: none; }
.fp-walls .fp-wall--out { stroke: #d2d2d2; stroke-width: 5; stroke-linejoin: round; }
.fp-walls .fp-up { stroke: #6a6a6a; stroke-width: 3; stroke-dasharray: 8 6; }
.fp-walls .fp-cage { stroke: var(--amber); stroke-dasharray: 4 3; stroke-width: 1.5; }
.fp-stairs line { stroke: #4a4a4a; stroke-width: 1.5; }
.fp-dim { font: 400 12px var(--font-mono); fill: var(--ink-3); }
.fp-names text { font: 500 14px var(--font-mono); letter-spacing: 0.06em; fill: var(--ink); pointer-events: none; }
.fp-names .fp-names--dim { fill: var(--ink-3); }
.fp-eq rect, .fp-eq circle { fill: #262626; stroke: #5a5a5a; stroke-width: 1; pointer-events: none; }
.fp-anno text { font: 400 10.5px var(--font-mono); fill: var(--ink-3); letter-spacing: 0.03em; pointer-events: none; }
.fp-l { transition: opacity 0.35s var(--ease); pointer-events: none; }
.fp-ring { fill: none; stroke: #e8e8e8; stroke-width: 1.4; }
.fp-ring--2 { stroke-dasharray: 5 5; stroke-width: 1.2; opacity: 0.7; }
.fp-det { fill: var(--bg-deep); stroke: #fff; stroke-width: 2; }
.fp-shadow { fill: var(--purple-ink); }
.fp-shield { stroke: var(--purple-ink); stroke-width: 6; stroke-dasharray: 10 4; opacity: 0.75; }
.fp-cellpos { fill: var(--amber); pointer-events: none; }
.fp-envelope { fill: none; stroke: #ff7a2e; stroke-width: 2; pointer-events: none; }
.fp-gas { fill: none; stroke: var(--amber); stroke-width: 3; stroke-linejoin: round; stroke-linecap: round; }
.fp-gas--flare { stroke-width: 3; }
.fp-gas--relief { stroke-width: 1.6; stroke-dasharray: 5 4; }
.fp-valve { stroke: #fff; stroke-width: 2.5; fill: none; }
.fp-arrestor { fill: var(--bg-deep); stroke: var(--amber); stroke-width: 2; }
.fp-h2 path { fill: var(--bg-deep); stroke: var(--amber); stroke-width: 2; }
.fp-tag { font: 500 11px var(--font-mono); letter-spacing: 0.05em; paint-order: stroke; stroke: var(--bg-deep); stroke-width: 4px; stroke-linejoin: round; }
.fp-tag--gas { fill: var(--amber-ink); }
.fp-tag--sig { fill: #ff4d83; }
.fp-tag--fib { fill: var(--purple-ink); }
.fp-tag--gnd { fill: var(--ink-2); }
.fp-tag--pwr { fill: var(--orange-ink); }
.fp-coax { fill: none; stroke: #ff4d83; stroke-width: 2.6; stroke-linejoin: round; }
.fp-fiber { fill: none; stroke: var(--purple-ink); stroke-width: 2.6; stroke-dasharray: 1 5; stroke-linecap: round; stroke-linejoin: round; }
.fp-plate { fill: #ff4d83; }
.fp-bus { fill: none; stroke: #ff7a2e; stroke-width: 5; stroke-linejoin: round; opacity: 0.9; }
.fp-rack { fill: #262626; stroke: #8e8e8e; }
.fp-strap { fill: none; stroke: #c2c2c2; stroke-width: 2; stroke-dasharray: 6 3; }
.fp-busbar { fill: #c2c2c2; }
.fp-earth { fill: none; stroke: #c2c2c2; stroke-width: 2; }
/* layer focus: chosen rule at full strength, everything else recedes */
.fp[data-layer="gas"] .fp-l:not(.fp-l-gas), .fp[data-layer="sig"] .fp-l:not(.fp-l-sig), .fp[data-layer="ring"] .fp-l:not(.fp-l-ring), .fp[data-layer="gnd"] .fp-l:not(.fp-l-gnd) { opacity: 0.1; }
.fp:not([data-layer="all"]) .fp-eq, .fp:not([data-layer="all"]) .fp-anno text:not(.fp-keep) { opacity: 0.35; }
.fp[data-layer="all"] .fp-anno-only { opacity: 0; }
.fp-anno-only { transition: opacity 0.3s; }
.fp__side { display: grid; gap: 16px; position: sticky; top: calc(var(--header-h) + 24px); }
.js .fp__room[hidden] { display: none; }
.fp__room { padding: clamp(20px, 2vw, 28px); }
.fp__k { font: 500 10.5px/1.4 var(--font-mono); letter-spacing: 0.04em; color: var(--purple); }
.fp__k--sub { margin-top: 18px; }
.fp__k--ink { color: var(--ink-3); }
.fp__room .card-paper__title { font-size: clamp(26px, 2.3vw, 36px); margin-top: 10px; }
.fp__purpose { font: 400 16px/1.5 var(--font-text); color: var(--paper-ink); margin-top: 10px; }
.fp__feat { list-style: none; padding: 0; margin: 8px 0 0; }
.fp__feat li { font: 400 12.5px/1.5 var(--font-mono); color: var(--paper-ink-2); padding: 6px 0; border-top: 1px solid var(--paper-line); }
.fp__chips { margin-top: 16px; }
.fp__room .chip { color: var(--paper-ink-2); border-color: var(--paper-line); }
.fp__room .chip__arrow { color: var(--purple); }
.fp__room .chip:hover { color: var(--paper-ink); border-color: var(--purple); background: rgba(100, 13, 95, 0.06); }
.fp__rules ol { list-style: none; padding: 0; margin: 10px 0 0; counter-reset: r; }
.fp__rules li { counter-increment: r; position: relative; padding: 12px 0 12px 34px; border-top: 1px solid var(--line); font: 400 14px/1.55 var(--font-text); color: var(--ink-2); transition: color 0.25s, background 0.25s; }
.fp__rules li::before { content: counter(r, decimal-leading-zero); position: absolute; left: 0; top: 14px; font: 500 11.5px/1 var(--font-mono); color: var(--ink-3); }
.fp__rules li.is-on { color: var(--ink); }
.fp__rules li.is-on::before { color: var(--amber); }

/* ---------- 3. cells ---------- */
.lb-cellgrid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(12px, 1.6vw, 22px); }
.lb-cell { border: 1px solid var(--line); border-radius: 10px; padding: 20px; background: var(--bg-raise); display: flex; flex-direction: column; }
.lb-cell--h { background: repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.025) 0 8px, transparent 8px 16px), var(--bg-raise); border-style: dashed; border-color: var(--line-2); }
.lb-cell__top { display: flex; justify-content: space-between; align-items: flex-start; }
.lb-cell__n { font: 500 12px/1 var(--font-mono); color: var(--amber); }
.lb-cell__glyph { width: 70px; height: 84px; }
.lb-cell__name { font: 400 clamp(22px, 2vw, 30px)/1.05 var(--font-display); letter-spacing: -0.03em; margin-top: 8px; }
.lb-cell__tag { font: 400 12px/1.4 var(--font-mono); color: var(--amber-ink); margin-top: 8px; }
.lb-cell__pts { list-style: none; padding: 0; margin: 14px 0 0; flex: 1; }
.lb-cell__pts li { font: 400 14.5px/1.5 var(--font-text); color: var(--ink-2); padding: 8px 0; border-top: 1px solid var(--line); }
.lb-cell__q { font: 400 12px/1.4 var(--font-mono); color: var(--ink-3); margin-top: 12px; }
.lb-cell__src { font: 400 12px/1 var(--font-mono); color: var(--ink-2); text-decoration: none; margin-top: 12px; }
.lb-cell__src:hover { color: var(--amber); }
.lb-contain { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: 16px clamp(24px, 4vw, 64px); margin-top: clamp(28px, 3vw, 44px); padding-top: 24px; border-top: 1px solid var(--line); }
.lb-contain__rule { font: 400 clamp(20px, 1.8vw, 26px)/1.3 var(--font-display); letter-spacing: -0.02em; }
.lb-contain__rule .kicker { display: block; margin-bottom: 10px; }
.lb-contain__p { font: 400 15px/1.6 var(--font-text); color: var(--ink-2); }
.lb-block { margin-top: clamp(48px, 6vw, 88px); }
.lb-block__head { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 12px clamp(24px, 4vw, 64px); align-items: end; margin-bottom: 20px; }
.lb-block__p { font: 400 15.5px/1.6 var(--font-text); color: var(--ink-2); }
.lb-block__strip { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 4px; }
.lb-block__run { display: grid; gap: 6px; padding: 14px 12px; min-height: 92px; align-content: end; border-radius: 4px; font: 400 14px/1.25 var(--font-text); }
.lb-block__run i { font: 500 10.5px/1 var(--font-mono); font-style: normal; letter-spacing: 0.06em; }
.lb-block__run--exp { background: var(--amber); color: #121212; }
.lb-block__run--ctl { background: var(--purple); color: #fff; }
.lb-block__run--ctl i { color: var(--purple-ink); }
.lb-block__axis { display: flex; justify-content: space-between; font: 400 11px/1 var(--font-mono); color: var(--ink-3); margin: 10px 0 18px; }

/* ---------- 4. calorimetry ---------- */
.cal { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(14px, 2vw, 28px); }
.cal__card { display: flex; flex-direction: column; }
.cal__svg { width: 100%; max-width: 420px; margin: 18px auto 6px; padding-inline: 12px; }
.cal-lag { fill: url(#calHatch); fill: rgba(255, 255, 255, 0.025); stroke: #4a4a4a; stroke-width: 1.5; stroke-dasharray: 3 3; }
.cal-encl { fill: none; stroke: #9a9a9a; stroke-width: 3; }
.cal-heater rect { fill: #ff7a2e; }
.cal-ref { fill: none; stroke: #7a7a7a; stroke-width: 2; }
.cal-tp { fill: none; stroke: #ff4d83; stroke-width: 1.6; stroke-linejoin: round; }
.cal-can { fill: #1e1e1e; stroke: #c9c9c9; stroke-width: 6; }
.cal-cell { fill: #3a1430; stroke: #8e8e8e; stroke-width: 1.5; }
.cal-joule { fill: none; stroke: var(--amber); stroke-width: 2; }
.cal-heat path { stroke: #ff7a2e; stroke-width: 2.2; fill: none; }
.cal-jacket { fill: rgba(213, 139, 224, 0.18); stroke: var(--purple-ink); stroke-width: 2; }
.cal-cond path { fill: none; stroke: #c2c2c2; stroke-width: 2; }
.cal-box { fill: #262626; stroke: #8e8e8e; }
.cal-loop { fill: none; stroke: var(--purple-ink); stroke-width: 2.6; stroke-linejoin: round; }
.cal-probe { fill: var(--bg-deep); stroke: var(--amber); stroke-width: 2.5; }
.cal-t text, .cal-t { font: 500 11px var(--font-mono); fill: var(--ink-2); letter-spacing: 0.04em; }
.cal-t .cal-t--dim { fill: var(--ink-3); font-weight: 400; font-size: 10.5px; }
.cal-t .cal-t--tp { fill: #ff4d83; }
.cal-t .cal-t--cell, .cal-t--cell { fill: #fff; font-size: 12px; }
.cal-t .cal-t--flow { fill: var(--purple-ink); }
.cal__eq { padding: 14px 18px; border-top: 1px solid var(--line); display: grid; gap: 6px; }
.cal__eqk { font: 500 10.5px/1 var(--font-mono); letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-3); }
.cal__eq code { font: 400 clamp(15px, 1.3vw, 18px)/1.4 var(--font-mono); color: var(--amber-ink); white-space: normal; }
.cal__spec { margin: 0; padding: 0 18px 18px; display: grid; flex: 1; align-content: start; }
.cal__spec div { padding: 12px 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: 104px 1fr; gap: 14px; }
.cal__spec dt { font: 500 10.5px/1.5 var(--font-mono); letter-spacing: 0.05em; text-transform: uppercase; color: var(--amber-ink); }
.cal__spec dd { margin: 0; font: 400 14.5px/1.55 var(--font-text); color: var(--ink-2); }
.cal__scale { margin-top: clamp(32px, 4vw, 56px); }
.ns { position: relative; padding: 6px 0 4px; }
.ns__axis { position: relative; height: 22px; border-bottom: 1px solid var(--line-2); margin-bottom: 14px; }
.ns__tick { position: absolute; left: var(--x); bottom: 6px; transform: translateX(-50%); font: 400 11px/1 var(--font-mono); color: var(--ink-3); white-space: nowrap; }
.ns__tick:first-child { transform: none; }
.ns__tick:last-child { transform: translateX(-100%); }
.ns__tick::after { content: ""; position: absolute; left: 50%; top: calc(100% + 6px); width: 1px; height: 6px; background: var(--line-2); }
.ns__row { position: relative; height: 40px; }
.ns__band { position: absolute; left: var(--a); width: calc(var(--b) - var(--a)); top: 4px; height: 12px; border-radius: 2px; }
.ns__band--cal { background: var(--orange); }
.ns__band--flow { background: var(--purple-ink); opacity: 0.85; }
.ns__lbl { position: absolute; left: var(--x); top: 20px; font: 400 11.5px/1.3 var(--font-mono); color: var(--ink-2); white-space: nowrap; }
.ns__row--pins { height: 64px; }
.ns__pin { position: absolute; left: var(--x); top: 0; padding-left: 12px; border-left: 2px solid var(--amber); font: 400 11.5px/1.35 var(--font-mono); color: var(--ink-2); white-space: nowrap; height: 56px; display: flex; flex-direction: column; justify-content: flex-end; }
.ns__pin b { font: 400 clamp(22px, 2vw, 30px)/1 var(--font-display); letter-spacing: -0.03em; color: var(--amber-ink); }
.ns__pin--cond { border-left-color: var(--ink-3); top: 0; }
.ns__pin--cond b { color: var(--ink-2); font-size: clamp(18px, 1.5vw, 22px); }
.ns__pin--floor { z-index: 1; }
.ns__pin--cond { opacity: 0.85; }
.ns__note { font: 400 13px/1.65 var(--font-mono); color: var(--ink-3); max-width: 96ch; margin-top: 16px; }
.cal__chans { list-style: none; padding: 0; margin: 0 0 16px; display: flex; flex-wrap: wrap; gap: 6px; }
.cal__chans li { font: 400 12px/1 var(--font-mono); color: var(--ink-2); padding: 8px 10px; border: 1px solid var(--line); border-radius: 3px; background: var(--bg-deep); }
.lb-weekly { margin-top: clamp(48px, 6vw, 96px); padding-top: clamp(28px, 3vw, 44px); border-top: 6px solid var(--amber); display: grid; grid-template-columns: minmax(0, 0.25fr) minmax(0, 1fr); gap: 16px 32px; }
.lb-weekly__k { font: 500 12.5px/1.4 var(--font-mono); color: var(--amber); }
.lb-weekly__t { font: 400 clamp(40px, 6vw, 96px)/0.94 var(--font-display); letter-spacing: var(--track-display); text-wrap: balance; }
.lb-weekly__p { grid-column: 2; font: 400 15px/1.6 var(--font-mono); color: var(--ink-2); max-width: 60ch; }

/* ---------- 5. detector ring (signature) ---------- */
.rg { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); gap: clamp(20px, 3vw, 44px); align-items: start; }
.rg__svg { width: 100%; height: auto; }
.rg-ring { fill: none; stroke: #e6e6e6; stroke-width: 2; }
.rg-ring--2 { stroke-dasharray: 8 7; stroke-width: 1.6; opacity: 0.6; }
.rg-t { font: 500 13px var(--font-mono); letter-spacing: 0.04em; fill: var(--ink-2); paint-order: stroke; stroke: var(--bg-deep); stroke-width: 4px; stroke-linejoin: round; }
.rg-t--ring { fill: var(--ink-3); font-size: 12px; }
.rg-t--name { fill: var(--ink); }
.rg-t--sub { fill: var(--ink-3); font-weight: 400; font-size: 11.5px; }
.rg-t--dim { fill: #fff; font-size: 12.5px; }
.rg-flight line { stroke: var(--amber); stroke-width: 1.5; stroke-dasharray: 3 5; opacity: 0.5; }
.rg-det { cursor: pointer; outline: none; }
.rg-det .rg-box { fill: #262626; stroke: #9a9a9a; stroke-width: 2; transition: stroke 0.25s, fill 0.25s; }
.rg-det .rg-box--pair { stroke: var(--amber); stroke-width: 3; }
.rg-pmt { fill: #3a3a3a; stroke: #7a7a7a; }
.rg-mod { fill: #d8d8d8; }
.rg-shadow { fill: var(--purple-ink); }
.rg-port { stroke: #c2c2c2; stroke-width: 4; }
.rg-gas { fill: none; stroke: var(--amber); stroke-width: 2.5; stroke-dasharray: 6 4; }
.rg-getter { fill: var(--bg-deep); stroke: var(--amber); stroke-width: 2.5; }
.rg-det--bub circle { fill: var(--bg-deep); stroke: var(--purple-ink); stroke-width: 2; }
.rg-dim { stroke: #fff; stroke-width: 1.4; }
.rg-ext { stroke: #fff; stroke-width: 1; stroke-dasharray: 2 3; opacity: 0.7; }
.rg-envelope { fill: none; stroke: #ff7a2e; stroke-width: 3; }
.rg-cell { fill: url(#rgCell); stroke: #c2c2c2; stroke-width: 1.5; }
.rg-foil { fill: rgba(255, 255, 255, 0.85); stroke: #fff; }
.rg-foil--mask { fill: #3a3a3a; stroke: var(--amber); stroke-width: 2; }
.rg-t--in { fill: var(--amber-ink); }
.rg-det:hover .rg-box, .rg-det:focus-visible .rg-box { fill: #333; stroke: #fff; }
.rg-det:focus-visible .rg-box, .rg-det:focus-visible circle { stroke: var(--amber); }
.rg-det.is-on .rg-box { fill: rgba(255, 178, 0, 0.22); stroke: var(--amber); }
.rg-det.is-on circle, .rg-det--qms.is-on .rg-gas { stroke: var(--amber); }
.rg-det.is-on .rg-t--name { fill: var(--amber-ink); }
.rg-det.is-on .rg-foil--mask { fill: var(--amber); }
.rg__side { display: grid; gap: 14px; position: sticky; top: calc(var(--header-h) + 24px); }
.rg__list { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.rg__btn { display: grid; grid-template-columns: 26px 1fr; gap: 8px; align-items: center; text-align: left; padding: 10px 12px; border: 1px solid var(--line); border-radius: 4px; min-height: 48px; transition: border-color 0.2s, background 0.2s; }
.rg__btn:hover { border-color: var(--ink-3); }
.rg__btn.is-on { border-color: var(--amber); background: rgba(255, 178, 0, 0.08); }
.rg__btn--pair { border-style: solid; box-shadow: inset 3px 0 0 var(--amber); }
.rg__btnn { font: 500 11px/1 var(--font-mono); color: var(--amber); }
.rg__btnl { font: 400 14px/1.2 var(--font-display); letter-spacing: -0.01em; color: var(--ink); }
.js .rg__panel[hidden] { display: none; }
.rg__panel { padding: clamp(20px, 2vw, 28px); }
.rg__k { font: 500 10.5px/1.4 var(--font-mono); letter-spacing: 0.04em; color: var(--purple); }
.rg__panel .card-paper__title { font-size: clamp(24px, 2.2vw, 34px); margin-top: 10px; }
.rg__dl { margin: 14px 0 0; display: grid; }
.rg__dl div { padding: 9px 0; border-top: 1px solid var(--paper-line); display: grid; grid-template-columns: 96px 1fr; gap: 12px; }
.rg__dl dt { font: 600 10.5px/1.5 var(--font-mono); letter-spacing: 0.04em; text-transform: uppercase; color: var(--paper-ink); }
.rg__dl dd { margin: 0; font: 400 13.5px/1.55 var(--font-text); color: var(--paper-ink-2); }
.rg__panel .chip { color: var(--paper-ink-2); border-color: var(--paper-line); }
.rg__panel .chip__arrow { color: var(--purple); }
.rg__panel .est { color: var(--paper-ink-2); border-color: var(--paper-line); }
.rg__panel .chips { margin-top: 14px; }
.lb-agree { margin-top: clamp(48px, 6vw, 88px); }
.lb-agree__pair { display: grid; grid-template-columns: 1fr auto 1fr; gap: clamp(12px, 3vw, 48px); align-items: stretch; }
.lb-agree__eq { align-self: center; }
.lb-agree__side { padding: clamp(20px, 2.4vw, 32px); border: 2px solid var(--amber); border-radius: 10px; }
.lb-agree__k { font: 500 11px/1 var(--font-mono); color: var(--amber); letter-spacing: 0.05em; }
.lb-agree__n { font: 400 clamp(30px, 3.6vw, 56px)/1 var(--font-display); letter-spacing: -0.04em; margin-top: 12px; }
.lb-agree__d { font: 400 13.5px/1.55 var(--font-mono); color: var(--ink-2); margin-top: 10px; }
.lb-agree__eq { font: 400 clamp(48px, 6vw, 96px)/1 var(--font-display); color: var(--amber); }
.lb-agree__p { font: 400 clamp(20px, 1.8vw, 26px)/1.3 var(--font-display); letter-spacing: -0.02em; text-align: center; margin-top: 22px; color: var(--ink-2); }
.lb-blind { margin-top: clamp(48px, 6vw, 88px); }
.lb-blind__head { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 12px clamp(24px, 4vw, 64px); align-items: end; margin-bottom: 20px; }
.lb-blind__p { font: 400 15.5px/1.6 var(--font-text); color: var(--ink-2); }
.lb-blind__strip { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 4px; }
.lb-blind__w { position: relative; height: 56px; border: 1px dashed var(--ink-3); border-left: 3px solid #ff4d83; border-radius: 2px; }
.lb-blind__w.is-blind { background: repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.22) 0 4px, rgba(255, 255, 255, 0.06) 4px 8px); border-style: solid; border-color: var(--ink-2); border-left-color: #ff4d83; }
.lb-blind__key { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; font: 400 11.5px/1 var(--font-mono); color: var(--ink-3); margin: 12px 0 16px; }
.lb-blind__sw { display: inline-block; width: 3px; height: 14px; background: #ff4d83; }
.lb-blind__sw--open { width: 16px; background: none; border: 1px dashed var(--ink-3); margin-left: 8px; }
.lb-blind__sw--blind { width: 16px; background: repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0 3px, transparent 3px 6px); border: 1px solid var(--ink-2); margin-left: 8px; }
.lb-sigma { margin-top: clamp(56px, 7vw, 104px); }
.lb-sigma__head { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 16px clamp(24px, 4vw, 64px); align-items: end; margin-bottom: clamp(24px, 3vw, 40px); }
.lb-sigma__big { font: 400 clamp(96px, 16vw, 240px)/0.8 var(--font-display); letter-spacing: var(--track-display); color: var(--amber); }
.lb-sigma__p { font: 400 clamp(17px, 1.5vw, 21px)/1.45 var(--font-text); color: var(--ink-2); max-width: 54ch; padding-bottom: 8px; }
.lb-sigma__chips { margin-top: 20px; }

/* ---------- 6. safety ---------- */
.lb-safe__grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: clamp(20px, 3vw, 44px); align-items: start; }
.lel__body { display: grid; grid-template-columns: 92px minmax(0, 1fr); gap: 20px; padding: 22px 20px; }
.lel__gauge { position: relative; height: 100%; min-height: 360px; border-left: 2px solid var(--line-2); margin-left: 40px; }
.lel__fill { position: absolute; left: -2px; bottom: 0; width: 14px; height: 100%; background: linear-gradient(0deg, var(--amber) 0%, var(--orange) 25%, var(--crimson) 50%, var(--purple) 100%); opacity: 0.85; border-radius: 0 3px 3px 0; }
.lel__mark { white-space: nowrap; position: absolute; left: -44px; bottom: var(--y); transform: translateY(50%); font: 500 11.5px/1 var(--font-mono); color: var(--ink); display: flex; align-items: center; gap: 6px; }
.lel__mark::after { content: ""; width: 60px; height: 2px; background: #fff; margin-left: 6px; }
.lel__mark--0 { color: var(--ink-3); }
.lel__mark--0::after { background: var(--ink-3); width: 18px; }
.lel__steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.lel__step { padding: 16px 18px; border-left: 3px solid var(--orange); background: var(--bg-raise); border-radius: 0 6px 6px 0; }
.lel__step--2 { border-left-color: var(--crimson); }
.lel__k { font: 500 11px/1.3 var(--font-mono); letter-spacing: 0.05em; color: var(--orange-ink); }
.lel__step--2 .lel__k { color: var(--crimson-ink); }
.lel__step ul { list-style: none; padding: 0; margin: 10px 0 0; }
.lel__step li { font: 400 14.5px/1.45 var(--font-text); color: var(--ink-2); padding: 5px 0 5px 16px; position: relative; }
.lel__step li::before { content: "→"; position: absolute; left: 0; color: var(--ink-3); font-size: 12px; }
.lb-safe__side { display: grid; gap: 18px; }
.estop, .twop { padding: 20px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg-raise); }
.estop__k { font: 500 11px/1.3 var(--font-mono); letter-spacing: 0.05em; color: var(--crimson-ink); }
.estop__list { list-style: none; padding: 0; margin: 12px 0 0; counter-reset: e; display: grid; gap: 4px; }
.estop__list li { counter-increment: e; display: grid; grid-template-columns: 28px 1fr; align-items: center; font: 400 17px/1.3 var(--font-display); letter-spacing: -0.015em; padding: 8px 0; border-top: 1px solid var(--line); }
.estop__list li::before { content: counter(e); font: 500 12px/1 var(--font-mono); color: var(--crimson-ink); }
.estop__stay { font: 400 13.5px/1.55 var(--font-mono); color: var(--ink-2); margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--line-2); }
.estop__stay b { color: var(--amber-ink); font-weight: 500; }
.twop__list { list-style: none; padding: 0; margin: 12px 0 0; display: flex; flex-wrap: wrap; gap: 6px; }
.twop__list li { font: 400 13px/1 var(--font-mono); padding: 9px 11px; border-radius: 999px; border: 1px solid color-mix(in srgb, var(--crimson-ink) 50%, transparent); color: var(--ink); }
.lb-safe__facts { list-style: none; padding: 0; margin: 0; }
.lb-safe__facts li { font: 400 14.5px/1.55 var(--font-text); color: var(--ink-2); padding: 12px 0; border-top: 1px solid var(--line); }
.lb-safe .chips { margin-top: 18px; }

/* ---------- 7. commissioning ---------- */
.com__seq { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 0; counter-reset: c; }
.com__step, .com__gate { position: relative; padding: 0 clamp(12px, 1.4vw, 20px) 0 0; }
.com__step::before, .com__gate::before { content: ""; display: block; height: 4px; background: var(--line-2); margin-bottom: 18px; }
.com__step::after { content: ""; position: absolute; top: -5px; left: 0; width: 14px; height: 14px; border-radius: 50%; background: var(--bg-deep); border: 3px solid var(--amber); }
.com__gate::before { background: var(--amber); }
.com__gate::after { content: ""; position: absolute; top: -9px; left: 0; width: 22px; height: 22px; background: var(--amber); clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%); }
.com__n { font: 500 12px/1 var(--font-mono); color: var(--amber); }
.com__n--gate { color: #121212; background: var(--amber); padding: 4px 6px; border-radius: 2px; }
.com__t { font: 400 clamp(19px, 1.6vw, 24px)/1.12 var(--font-display); letter-spacing: -0.025em; margin-top: 12px; text-wrap: balance; }
.com__p { font: 400 14px/1.55 var(--font-text); color: var(--ink-2); margin-top: 10px; }
.com__gate .com__t { color: var(--amber-ink); }
.com__year { margin-top: clamp(48px, 6vw, 88px); }
.com__months { display: grid; grid-template-columns: 200px repeat(12, minmax(0, 1fr)); font: 400 11px/1 var(--font-mono); color: var(--ink-3); padding-bottom: 8px; border-bottom: 1px solid var(--line); }
.com__months::before { content: ""; }
.com__bars { list-style: none; padding: 0; margin: 0; }
.com__bar { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 0; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--line); }
.com__barl b { display: block; font: 400 18px/1.2 var(--font-display); letter-spacing: -0.02em; font-weight: 400; }
.com__barl span { font: 400 11px/1 var(--font-mono); color: var(--ink-3); }
.com__track { position: relative; height: 18px; display: block; background: repeating-linear-gradient(90deg, transparent 0 calc(100% / 12 - 1px), var(--line) calc(100% / 12 - 1px) calc(100% / 12)); }
.com__fill { position: absolute; top: 2px; bottom: 2px; left: calc((var(--a) - 1) / 12 * 100%); width: calc((var(--b) - var(--a) + 1) / 12 * 100%); border-radius: 2px; background: var(--orange); }
.com__bar--1 .com__fill { background: var(--crimson); }
.com__bar--2 .com__fill { background: var(--amber); }
.com__bar--3 .com__fill { background: #fff; }
.com__bar--4 .com__fill { background: var(--purple-ink); }
.com__bard { grid-column: 2; font: 400 12.5px/1.5 var(--font-mono); color: var(--ink-3); margin-top: 8px; max-width: 90ch; }
.lb-com .chips { margin-top: 24px; }

/* ---------- 8. capital ---------- */
.cap__head { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 16px clamp(24px, 4vw, 64px); align-items: end; margin-bottom: clamp(24px, 3vw, 36px); }
.cap__k { font: 500 12px/1.4 var(--font-mono); color: var(--amber); }
.cap__total { font: 400 clamp(64px, 11vw, 184px)/0.84 var(--font-display); letter-spacing: var(--track-display); margin-top: 10px; white-space: nowrap; }
.cap__cur { font: 400 0.24em/1 var(--font-mono); letter-spacing: 0.02em; color: var(--ink-3); vertical-align: 0.25em; margin-right: 0.3em; }
.cap__split { font: 400 15px/1.6 var(--font-mono); color: var(--ink-2); max-width: 54ch; padding-bottom: 10px; }
.cap__split b { color: var(--ink); font-weight: 500; }
.cap__bar { display: flex; height: clamp(64px, 7vw, 104px); gap: 3px; margin-bottom: clamp(20px, 2.4vw, 32px); }
.cap__seg { flex: 0 0 auto; width: calc(var(--w) - 3px); display: flex; align-items: flex-end; padding: 8px; text-decoration: none; color: #fff; font: 400 clamp(18px, 2vw, 30px)/1 var(--font-display); letter-spacing: -0.03em; transition: filter 0.2s, transform 0.3s var(--ease); transform-origin: left; min-width: 18px; overflow: hidden; }
.cap__seg:hover { filter: brightness(1.15); }
.cap__seg--g1, .cap__letter--g1 { background: #ffb200; color: #121212; }
.cap__seg--g2, .cap__letter--g2 { background: #f5871a; color: #121212; }
.cap__seg--g3, .cap__letter--g3 { background: #eb5b00; color: var(--on-orange); }
.cap__seg--g4, .cap__letter--g4 { background: #e2392b; color: var(--on-orange); }
.cap__seg--g5, .cap__letter--g5 { background: #d91656; }
.cap__seg--g6, .cap__letter--g6 { background: #9e125a; }
.cap__seg--g7, .cap__letter--g7 { background: #640d5f; }
.cap__seg--cont { background: repeating-linear-gradient(135deg, #3a3a3a 0 6px, #2a2a2a 6px 12px); color: var(--ink-2); font: 500 11px/1 var(--font-mono); }
.cap__list { list-style: none; padding: 0; margin: 0; border-bottom: 1px solid var(--line); }
.cap__item { border-top: 1px solid var(--line); }
.cap__item > summary, .cap__item--static { display: grid; grid-template-columns: 44px minmax(0, 1fr) 70px 110px 22px; gap: 14px; align-items: center; padding: 14px 0; cursor: pointer; list-style: none; }
.cap__item--static { cursor: default; }
.cap__item > summary::-webkit-details-marker { display: none; }
.cap__letter { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 3px; font: 400 20px/1 var(--font-display); color: #fff; }
.cap__letter--amber { background: var(--amber); color: #121212; }
.cap__letter--orange { background: var(--orange); }
.cap__letter--crimson { background: var(--crimson); }
.cap__letter--purple { background: var(--purple); }
.cap__letter--cont { background: #333; color: var(--ink-2); }
.cap__name { font: 400 clamp(18px, 1.6vw, 24px)/1.15 var(--font-display); letter-spacing: -0.02em; }
.cap__share { font: 400 12px/1 var(--font-mono); color: var(--ink-3); text-align: right; }
.cap__val { font: 500 14px/1 var(--font-mono); text-align: right; }
.cap__plus { width: 22px; height: 22px; border: 1px solid var(--line-2); border-radius: 50%; position: relative; }
.cap__plus::before, .cap__plus::after { content: ""; position: absolute; left: 5px; right: 5px; top: 10px; height: 1px; background: var(--ink-2); }
.cap__plus::after { transform: rotate(90deg); transition: transform 0.25s; }
.cap__item[open] .cap__plus::after { transform: rotate(0); }
.cap__item > summary:hover .cap__name { color: var(--amber-ink); }
.cap__rows { padding: 0 0 20px 58px; overflow-x: auto; }
.cap__rows table { width: 100%; border-collapse: collapse; font: 400 13px/1.45 var(--font-text); color: var(--ink-2); min-width: 520px; }
.cap__rows th { text-align: left; font: 500 10.5px/1.3 var(--font-mono); letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink-3); padding: 8px 10px 8px 0; border-bottom: 1px solid var(--line-2); }
.cap__rows td { padding: 8px 10px 8px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.cap__rows td:first-child { color: var(--ink); }
.cap__rows .r { text-align: right; white-space: nowrap; font-family: var(--font-mono); font-size: 12.5px; }
.cap__more { margin-top: 12px; font: 400 12.5px var(--font-mono); }
.cap__more a { color: var(--ink-2); }
.cap__note { font: 400 12.5px/1.6 var(--font-mono); color: var(--ink-3); margin-top: 18px; }

/* ---------- 9. deeper ---------- */
.lb-deeper__grid { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: clamp(28px, 5vw, 88px); }

/* ---------- motion ---------- */
@media (prefers-reduced-motion: no-preference) {
  .js .cap__bar[data-grow] .cap__seg { transform: scaleX(0.02); }
  .js .cap__bar[data-grow].is-in .cap__seg { transform: none; transition: transform 1s var(--ease-out); }
  .js .rg.is-pulse .rg-flight line { animation: rg-fly 1.2s ease-in 1 both; }
}
@keyframes rg-fly { from { stroke-dashoffset: 120; opacity: 0; } 30% { opacity: 0.9; } to { stroke-dashoffset: 0; opacity: 0.5; } }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .lb-facts { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lb-rulelist { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 28px; }
  .lb-cellgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fp__body, .rg { grid-template-columns: 1fr; }
  .fp__side, .rg__side { position: static; }
  .com__seq { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: 36px; }
}
@media (max-width: 900px) {
  .lb-hero { min-height: 0; }
  .lb-hero__media { position: relative; inset: auto; height: 56vw; min-height: 240px; order: -1; margin-bottom: -18vw; }
  .lb-hero__media img { object-position: 64% 50%; }
  .lb-hero__media::after { background: linear-gradient(180deg, rgba(25, 25, 25, 0.1) 0%, transparent 35%, var(--bg) 100%); }
  .lb-hero__h1 { max-width: none; }
  .cal, .lb-safe__grid, .lb-contain, .lb-block__head, .lb-blind__head, .lb-deeper__grid, .cap__head { grid-template-columns: 1fr; }
  .lb-weekly { grid-template-columns: 1fr; }
  .lb-weekly__p { grid-column: 1; }
  .lb-agree__pair { grid-template-columns: 1fr; }
  .lb-agree__eq { text-align: center; font-size: 48px; line-height: 0.8; }
  .lb-sigma__head { grid-template-columns: 1fr; }
  .fp-anno, .fp-eq, .fp-anno-only, .fp-dim { display: none; }
  .fp-names text { font-size: 28px; letter-spacing: 0.01em; }
  .fp-floor { font-size: 22px; }
  .fp-tag { font-size: 20px; }
  .fp-north text { font-size: 24px; }
  .rg-t { font-size: 22px; letter-spacing: 0.01em; }
  .rg-t--sub, .rg-t--ring { font-size: 19px; }
  .rg-t--dim { font-size: 20px; }
  .cal-t text, .cal-t { font-size: 13px; letter-spacing: 0.01em; }
  .cal-t .cal-t--dim { font-size: 12px; }
  .com__months, .com__bar { grid-template-columns: 1fr; }
  .com__months { display: none; }
  .com__bard { grid-column: 1; }
  .com__barl { margin-bottom: 8px; }
  .com__track { background: repeating-linear-gradient(90deg, transparent 0 calc(100% / 12 - 1px), var(--line-2) calc(100% / 12 - 1px) calc(100% / 12)); }
}
@media (max-width: 640px) {
  .lb-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lb-facts b { font-size: 40px; }
  .lb-rulelist, .lb-cellgrid { grid-template-columns: 1fr; }
  .lb-rule { margin-right: 0; }
  .lb-block__strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lb-blind__strip { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .com__seq { grid-template-columns: 1fr; row-gap: 28px; }
  .rg__list { grid-template-columns: 1fr 1fr; }
  .rg__btnl { font-size: 13px; }
  .rg__dl div, .cal__spec div { grid-template-columns: 1fr; gap: 2px; }
  .lel__body { grid-template-columns: 56px minmax(0, 1fr); gap: 12px; padding: 16px 12px; }
  .lel__gauge { margin-left: 30px; min-height: 420px; }
  .lel__mark { left: -34px; font-size: 10px; }
  .lel__mark::after { width: 28px; }
  .cap__item > summary, .cap__item--static { grid-template-columns: 38px minmax(0, 1fr) 84px 22px; gap: 10px; }
  .cap__share { display: none; }
  .cap__val { font-size: 13px; }
  .cap__rows { padding-left: 0; }
  .cap__seg span { font-size: 14px; }
  .cap__seg--cont span { display: none; }
  .ns__lbl { white-space: normal; max-width: 60%; font-size: 11px; }
  .ns__row { height: 56px; }
  .ns__pin { font-size: 10.5px; white-space: normal; max-width: 52%; }
  .ns__pin--cond { display: none; }
  .ns__tick { font-size: 10px; }
}


/* =====================================================================
   Round 4: shorter page, photos beside intros, diagnostics count
   ===================================================================== */
.page-lab .section { padding-block: clamp(56px, 6.4vw, 104px); }
.lb-intro { margin-bottom: clamp(28px, 3.4vw, 52px); }
.lb-intro .lead { margin-top: clamp(16px, 1.8vw, 24px); }
.lb-hero > .illus-tag { left: auto; right: var(--gutter); bottom: auto; top: 18px; }

.lb-intro--media { max-width: none; display: grid; grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); gap: clamp(24px, 4vw, 64px); align-items: center; }
.lb-intro--flip { grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); }
.lb-photo { position: relative; margin: 0; border-radius: 10px; overflow: hidden; background: var(--bg-deep); }
.lb-photo img { width: 100%; height: 100%; object-fit: cover; }
.lb-photo--cal { aspect-ratio: 4 / 3; }
.lb-photo--det { aspect-ratio: 16 / 9; }
.lb-intro--media .display-2 { font-size: clamp(42px, 5.2vw, 84px); }

.lb-weekly { margin-top: clamp(24px, 2.6vw, 36px); padding-top: 18px; border-top: 4px solid var(--amber); display: block; }
.lb-weekly__k { margin-bottom: 8px; }
.lb-weekly__t { font: 400 clamp(28px, 2.8vw, 44px)/1 var(--font-display); letter-spacing: -0.04em; }
.lb-weekly__p { grid-column: auto; margin-top: 10px; font-size: 13.5px; }

.lb-count { margin-bottom: clamp(32px, 4vw, 56px); }
.lb-count__h { font: 500 12.5px/1.4 var(--font-mono); color: var(--amber); letter-spacing: 0.02em; margin-bottom: 14px; }
.lb-count__list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 clamp(16px, 2vw, 32px); }
.lb-count__list li { display: grid; grid-template-columns: auto 1fr; gap: 14px; align-items: start; padding-top: 16px; border-top: 2px solid var(--line-2); }
.lb-count__list li:nth-child(2) { border-top-color: var(--amber); }
.lb-count__list b { font: 400 clamp(48px, 4.6vw, 72px)/0.85 var(--font-display); letter-spacing: var(--track-display); color: var(--ink); }
.lb-count__list li:nth-child(2) b { color: var(--amber); }
.lb-count__list span { font: 400 14px/1.5 var(--font-text); color: var(--ink-2); }
.lb-count__list strong { color: var(--ink); font-weight: 400; }

.lb-blind { margin-top: clamp(40px, 5vw, 72px); }
.lb-sigma { margin-top: clamp(40px, 5vw, 72px); }
.lb-sigma__big { font-size: clamp(88px, 11vw, 168px); }
.lb-sigma .statbar { min-height: clamp(64px, 6.4vw, 92px); }
.lb-sigma .statbar__value { font-size: clamp(40px, 5.6vw, 84px); }
.lb-sigma .statbar__label { font-size: clamp(16px, 1.8vw, 28px); }

.lb-block { margin-top: clamp(32px, 4vw, 56px); }
.com__year { margin-top: clamp(36px, 4.4vw, 64px); }
.com__bar { padding: 8px 0; }
.com__dl { margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 32px; }
.com__dl div { padding: 12px 0; border-top: 1px solid var(--line); }
.com__dl dt { font: 400 18px/1.2 var(--font-display); letter-spacing: -0.02em; }
.com__dl dt span { font: 400 11px/1 var(--font-mono); color: var(--ink-3); margin-left: 6px; }
.com__dl dd { margin: 6px 0 0; font: 400 13px/1.55 var(--font-mono); color: var(--ink-2); }

.lb-deeper__grid { grid-template-columns: 1fr; gap: 20px; }
.lb-deeper .deeper-list { grid-template-columns: 1fr 1fr; column-gap: clamp(24px, 4vw, 56px); }
.lb-deeper .deeper-list .deeper:nth-last-child(2) { border-bottom: 1px solid var(--line); }

@media (max-width: 1100px) {
  .lb-count__list { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 20px; }
}
@media (max-width: 900px) {
  .lb-intro--media, .lb-intro--flip { grid-template-columns: 1fr; }
  .lb-intro--flip .lb-photo { order: -1; }
  .lb-photo--cal { aspect-ratio: 16 / 10; }
  .lb-photo--cal img { object-position: 30% 55%; }
  .lb-deeper .deeper-list { grid-template-columns: 1fr; }
  .lb-deeper .deeper-list .deeper:nth-last-child(2) { border-bottom: 0; }
  .com__dl { grid-template-columns: 1fr; }
  .lb-hero > .illus-tag { top: 12px; }
}
@media (max-width: 640px) {
  .lb-count__list { grid-template-columns: 1fr; }
  .lb-count__list b { font-size: 48px; min-width: 34px; }
}

/* round 4, second pass */
.page-lab .section { padding-block: clamp(48px, 5.4vw, 88px); }
.lb-intro { max-width: 1240px; }
.lb-intro .lead { max-width: 64ch; }
.lb-intro--media { max-width: none; }
.cal__svg { max-width: 340px; margin-top: 12px; }
.lb-blind { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 12px clamp(24px, 4vw, 56px); align-items: start; }
.lb-blind__head { display: block; margin-bottom: 0; grid-row: span 3; }
.lb-blind__head .lb-blind__p { margin-top: 10px; }
.lb-blind__strip { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.lb-blind__w { height: 44px; }
.lb-blind__key { margin: 4px 0 0; }
.lb-sigma .statbar { min-height: clamp(56px, 5.4vw, 76px); }
.lb-sigma__head { margin-bottom: clamp(18px, 2vw, 28px); }
.lb-safe__more { list-style: none; padding: 0; margin: 0 0 18px; }
.lb-safe__more li { font: 400 14.5px/1.55 var(--font-text); color: var(--ink-2); padding: 10px 0; border-top: 1px solid var(--line); }
.cap__list { display: grid; grid-template-columns: 1fr 1fr; column-gap: clamp(24px, 4vw, 56px); align-items: start; }
.cap__list > li { border-bottom: 1px solid var(--line); margin-bottom: -1px; }
.cap__list { border-bottom: 0; }
.cap__item { border-top: 0; }
.cap__list > li:nth-child(-n+2) { border-top: 1px solid var(--line); }
.cap__item > summary, .cap__item--static { grid-template-columns: 40px minmax(0, 1fr) 56px 92px 22px; gap: 12px; }
.cap__rows { padding-left: 0; }
.com__bar { padding: 6px 0; }
@media (max-width: 900px) {
  .lb-blind { grid-template-columns: 1fr; }
  .lb-blind__head { grid-row: auto; }
  .lb-blind__strip { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .cap__list { grid-template-columns: 1fr; }
  .cap__list > li:nth-child(2) { border-top: 0; }
}
/* round 4, third pass */
@media (min-width: 1101px) { .fp__body { grid-template-columns: minmax(0, 1.22fr) minmax(0, 0.78fr); } }
.lb-sigma { display: grid; grid-template-columns: minmax(0, 0.36fr) minmax(0, 0.64fr); gap: 16px clamp(24px, 4vw, 56px); align-items: start; }
.lb-sigma__head { display: block; margin: 0; grid-row: span 2; }
.lb-sigma__p { margin-top: 18px; font-size: clamp(15px, 1.2vw, 17px); padding-bottom: 0; }
.lb-sigma__chips { margin-top: 4px; }
.lb-more .com__year { margin-top: 8px; }
.ns__row { height: 34px; }
.ns__row--pins { height: 56px; }
.ns__pin { height: 50px; }
@media (max-width: 900px) {
  .lb-sigma { grid-template-columns: 1fr; }
  .lb-sigma__head { grid-row: auto; }
}
.lb-sigma .statbar--orange { color: var(--on-orange); }
.cap__letter--g1, .cap__letter--g2, .cap__letter--g3, .cap__letter--g4 { color: var(--on-orange); }
.cap__letter--g5, .cap__letter--g6, .cap__letter--g7 { color: #fff; }
.cap__letter { font-size: 24px; }