/* Home page (v60). Loaded after tianyu-refresh.css on dist/index.html only. */
/* Clip horizontal decoration without creating an ancestor scroll container. */
html,body{overflow-x:clip}
.tr-home-page>.site-header{position:sticky;top:0;z-index:120}
@media (max-width:1000px){
  .tr-home-page .site-header .main-nav.open{max-height:calc(100dvh - 90px);overflow-y:auto}
}
.tr-home{--pad:clamp(64px,8vw,112px)}
.tr-shell{width:min(var(--tr-shell,1200px),calc(100% - 48px));margin-inline:auto}
.tr-home h2{font-size:clamp(28px,2.8vw,40px);line-height:1.14;margin:0 0 20px}
.tr-home p{font-size:16px;line-height:1.65;margin:0 0 14px;max-width:62ch}
.tr-over{font-size:13px!important;font-weight:600;color:var(--tr-accent)!important;margin:0 0 12px!important}

/* buttons & links */
.tr-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.tr-btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid;cursor:pointer;text-decoration:none;font-family:inherit;line-height:1.2}
.tr-btn--ghost{background:transparent;border-color:rgba(255,255,255,.7)!important;color:#fff!important}
.tr-btn--ghost:hover{background:#fff;color:var(--tr-ink)!important}
.tr-btn--light{background:#fff;border-color:#fff!important;color:var(--tr-ink)!important}
.tr-btn--light:hover{background:transparent;color:#fff!important}
.tr-link{display:inline-flex;align-items:center;gap:8px;margin-top:8px;color:var(--tr-navy);font-weight:600;font-size:15px;text-decoration:none;border-bottom:1px solid var(--tr-accent);padding-bottom:2px}
.tr-link:hover{color:var(--tr-accent)}

/* ---------- hero ---------- */
.tr-hero{position:relative;min-height:clamp(560px,82vh,780px);display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden;background:var(--tr-ink);color:#fff}
.tr-hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:62% 40%;animation:tr-settle 1.8s cubic-bezier(.2,.7,.2,1) both}
.tr-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(9,24,38,.92) 0%,rgba(9,24,38,.78) 36%,rgba(9,24,38,.18) 70%,rgba(9,24,38,0) 100%),linear-gradient(0deg,rgba(9,24,38,.7) 0%,rgba(9,24,38,0) 40%)}
.tr-hero-inner{position:relative;z-index:1;padding:120px 0 72px}
.tr-hero-line{font-size:14px!important;color:#b8c7d3!important;margin:0 0 18px!important;padding-left:14px;border-left:2px solid var(--tr-accent)}
.tr-hero h1{max-width:17ch;margin:0;color:#fff!important;font-size:clamp(38px,4.6vw,64px);line-height:1.02;letter-spacing:-.035em;font-weight:600}
.tr-hero-lead{font-size:clamp(17px,1.4vw,20px)!important;color:#dbe4ea!important;max-width:46ch!important;margin:22px 0 0!important}
.tr-hero-caption{position:relative;z-index:1;width:min(var(--tr-shell,1200px),calc(100% - 48px));max-width:none!important;margin:0 auto 22px!important;font-size:12px!important;color:#8fa3b3!important;text-align:right}
.tr-hero-inner>*{animation:tr-rise .9s cubic-bezier(.2,.7,.2,1) both}
.tr-hero-inner>:nth-child(2){animation-delay:.08s}.tr-hero-inner>:nth-child(3){animation-delay:.16s}.tr-hero-inner>:nth-child(4){animation-delay:.24s}
@keyframes tr-rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
@keyframes tr-settle{from{transform:scale(1.06)}to{transform:scale(1)}}

/* ---------- intro ---------- */
.tr-intro{padding:var(--pad) 0}
.tr-intro-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:clamp(40px,6vw,96px);align-items:start}
.tr-facts{margin:0;display:grid;grid-template-columns:1fr 1fr;border-top:2px solid var(--tr-navy)}
.tr-facts>div{padding:18px 0 16px;border-bottom:1px solid var(--tr-rule)}
.tr-facts>div:nth-child(odd){padding-right:20px}
.tr-facts dt{font-size:13px;color:var(--tr-muted);margin:0 0 6px}
.tr-facts dd{margin:0;font-size:clamp(22px,2vw,28px);font-weight:600;color:var(--tr-navy);letter-spacing:-.02em;font-variant-numeric:tabular-nums}

/* ---------- single-line diagram ---------- */
.tr-grid{background:var(--tr-ink);color:#c9d5de;padding:var(--pad) 0 calc(var(--pad) - 16px)}
.tr-grid h2{color:#fff!important}
.tr-grid-head{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:end;margin-bottom:36px}
.tr-grid-head p{color:#a9b9c5;margin:0 0 20px}
.tr-sld-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.tr-sld{display:block;width:100%;min-width:960px;height:auto;font-family:inherit}
.sld-band text{fill:#8fa3b3;font-size:12px;font-weight:600;text-anchor:middle}
.sld-wires{fill:none;stroke:#3a5569;stroke-width:2}
.sld-flow{fill:none}
.sld-flow use{fill:none;stroke:#8aa3b6;stroke-width:2;stroke-dasharray:2 16;stroke-linecap:round;opacity:.5;animation:sld-current 1.6s linear infinite}
.sld-flow use.is-live{stroke:#5cc2ff;stroke-width:3;opacity:1;stroke-dasharray:3 11;animation-duration:.8s;filter:drop-shadow(0 0 4px rgba(92,194,255,.75))}
@keyframes sld-current{to{stroke-dashoffset:-36}}
.sld-bus line{stroke:#c9d5de;stroke-width:5;stroke-linecap:square}
.sld-tower path{fill:none;stroke:#6f879a;stroke-width:1.5}
.sld-tower text,.cap{fill:#9fb1bf;font-size:12px;text-anchor:middle}
.sld-end circle{fill:var(--tr-ink);stroke:#c9d5de;stroke-width:2}
.sld-end path{fill:#c9d5de}
.sld-end .sym{fill:#fff;font-size:15px;font-weight:600;text-anchor:middle}
.sld-end .sym--sm{font-size:11px}
.sld-node{cursor:pointer;outline:none;fill:var(--tr-ink);stroke:#e7eef3;stroke-width:2;transition:stroke .2s,fill .2s}
.sld-node text{stroke:none}
.sld-node rect{stroke-width:1.5;stroke-dasharray:4 3}
.sld-node .cap{fill:#dfe8ee;font-weight:600}
.sld-node:hover,.sld-node:focus-visible{stroke:#fff;fill:#17354e}
.sld-node.is-active{stroke:#5cc2ff;fill:#0f3350}
.sld-node.is-active .cap{fill:#fff}
.sld-node:focus-visible{stroke-width:3}
/* ---------- product families ---------- */
.tr-products{padding:var(--pad) 0}
.tr-sec-head{display:flex;justify-content:space-between;align-items:end;gap:32px;margin-bottom:40px}
.tr-sec-head h2{margin:0}
.tr-sec-head p{margin:12px 0 0;color:var(--tr-muted)}
.tr-family{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.tr-family article{border-bottom:2px solid var(--tr-navy)}
.tr-family-img{display:block;aspect-ratio:4/3;margin:0 0 22px;overflow:hidden;background:#fff}
.tr-family-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.tr-family-img:hover img{transform:scale(1.03)}
.tr-family h3{font-size:22px;margin:0 0 6px}
.tr-family-range{font-size:14px!important;color:var(--tr-muted)!important;margin:0 0 18px!important}
.tr-family ul{list-style:none;margin:0;padding:0;border-top:1px solid var(--tr-rule)}
.tr-family li{border-bottom:1px solid var(--tr-rule)}
.tr-family li a{display:flex;justify-content:space-between;padding:12px 0;color:var(--tr-text);text-decoration:none;font-size:15px}
.tr-family li a::after{content:"";width:7px;height:7px;margin-top:7px;border-top:1.5px solid currentColor;border-right:1.5px solid currentColor;transform:rotate(45deg);opacity:.45}
.tr-family li a:hover{color:var(--tr-accent)}

/* ---------- split image / copy ---------- */
.tr-split{display:grid;grid-template-columns:1fr 1fr;min-height:560px;background:var(--tr-ink);color:#c9d5de}
.tr-split--rev{background:#fff;color:var(--tr-text)}
.tr-split--rev .tr-split-img{order:2}
.tr-split-img{margin:0;position:relative;overflow:hidden}
.tr-split-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.tr-split-copy{padding:clamp(48px,6vw,96px) max(24px,calc((100vw - var(--tr-shell,1200px))/2)) clamp(48px,6vw,96px) clamp(40px,5vw,80px);align-self:center}
.tr-split--rev .tr-split-copy{padding:clamp(48px,6vw,96px) clamp(40px,5vw,80px) clamp(48px,6vw,96px) max(24px,calc((100vw - var(--tr-shell,1200px))/2))}
.tr-split:not(.tr-split--rev) h2{color:#fff!important}
.tr-split:not(.tr-split--rev) p{color:#b3c2cd}
.tr-split:not(.tr-split--rev) .tr-link{color:#fff}
.tr-ticks{list-style:none;margin:20px 0 24px;padding:0;border-top:1px solid var(--tr-rule-dark)}
.tr-ticks li{padding:11px 0 11px 22px;border-bottom:1px solid var(--tr-rule-dark);position:relative;font-size:15px;color:#dfe8ee}
.tr-ticks li::before{content:"";position:absolute;left:0;top:19px;width:10px;height:2px;background:var(--tr-accent)}
.tr-facts--compact{grid-template-columns:repeat(3,1fr);margin:24px 0 28px}
.tr-facts--compact>div{padding-right:16px;display:flex;flex-direction:column;justify-content:space-between}
.tr-facts--compact dd{font-size:24px}

/* ---------- reports ---------- */
.tr-evidence{padding:var(--pad) 0;border-top:1px solid var(--tr-rule)}
.tr-reports{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:24px}
.tr-reports a{display:block;text-decoration:none;color:var(--tr-text)}
.tr-reports img{display:block;width:100%;aspect-ratio:3/4;object-fit:cover;object-position:top;border:1px solid var(--tr-rule);background:#fff;transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s}
.tr-reports a:hover img{transform:translateY(-4px);box-shadow:0 16px 30px rgba(13,33,51,.12)}
.tr-reports strong{display:block;margin-top:14px;color:var(--tr-navy);font-size:15px}
.tr-reports span{display:block;font-size:13px;color:var(--tr-muted);margin-top:2px}

/* ---------- references ---------- */
.tr-refs{padding:var(--pad) 0;border-top:1px solid var(--tr-rule)}
.tr-refs-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(40px,5vw,80px);align-items:start}
.tr-refs-img{margin:0}
.tr-refs-img img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover}
.tr-refs-img figcaption{font-size:13px;color:var(--tr-muted);margin-top:10px}
.tr-ref-table{width:100%;border-collapse:collapse;border-top:2px solid var(--tr-navy);margin:8px 0 24px;font-size:15px}
.tr-ref-table th,.tr-ref-table td{text-align:left;padding:13px 12px 13px 0;border-bottom:1px solid var(--tr-rule);vertical-align:top}
.tr-ref-table th{font-weight:600;color:var(--tr-muted);font-size:13px;width:88px;padding-top:15px}
.tr-ref-table td:first-of-type{color:var(--tr-navy);font-weight:600}
.tr-ref-table td:last-child{color:var(--tr-muted);font-size:14px}
.tr-ref-table a{color:inherit;text-decoration:none;border-bottom:1px solid var(--tr-rule)}
.tr-ref-table a:hover{color:var(--tr-accent);border-color:var(--tr-accent)}

/* ---------- CTA ---------- */
.tr-cta{background:radial-gradient(120% 140% at 85% 0%,#1e4a6e 0%,#12304a 45%,var(--tr-ink) 100%);color:#fff;padding:clamp(64px,7vw,104px) 0}
.tr-cta h2{color:#fff!important;max-width:20ch;margin:0 0 14px}
.tr-cta p{color:#b9c8d4}
.tr-cta .tr-btn--primary{background:var(--tr-accent)!important;border-color:var(--tr-accent)!important;color:#fff!important}
.tr-cta .tr-btn--primary:hover{background:#fff!important;border-color:#fff!important;color:var(--tr-ink)!important}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  .tr-intro-grid,.tr-grid-head,.tr-refs-grid{grid-template-columns:1fr}
  .tr-family{grid-template-columns:1fr;gap:48px}
  .tr-split,.tr-split--rev{grid-template-columns:1fr}
  .tr-split-img{min-height:320px;order:0!important}
  .tr-split-copy,.tr-split--rev .tr-split-copy{padding:48px 24px}
  .tr-reports{grid-template-columns:repeat(5,minmax(150px,1fr));overflow-x:auto;padding-bottom:8px}
  .tr-sec-head{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){
  .tr-hero{min-height:560px}
  .tr-hero h1{font-size:38px}
  .tr-hero-inner{padding-bottom:56px}
  .tr-hero::after{background:linear-gradient(0deg,rgba(9,24,38,.95) 0%,rgba(9,24,38,.75) 55%,rgba(9,24,38,.25) 100%)}
  .tr-facts{grid-template-columns:1fr 1fr}
  .tr-facts--compact{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  .tr-hero-img,.tr-hero-inner>*{animation:none}
  .sld-flow use{animation:none;opacity:.35}
}
.tr-sld-hint{display:none;font-size:13px!important;color:#8fa3b3!important;margin:0 auto 12px!important}
@media (max-width:1000px){.tr-sld-hint{display:block}}

/* ================= v61: tonal rhythm, motion, popover, map ================= */
/* light bands are cool steel, never flat white; dark bands fade in/out at their edges */
.tr-intro{background:linear-gradient(180deg,#e9eff4 0%,#f5f7f9 60%,#f5f7f9 100%)}
.tr-products,.tr-evidence,.tr-refs{background:#f5f7f9;border-top:0!important}
.tr-evidence{background:linear-gradient(180deg,#f5f7f9 0%,#eaf0f4 100%)}
.tr-refs{background:linear-gradient(180deg,#eaf0f4 0%,#f5f7f9 100%)}
.tr-grid{position:relative;background:linear-gradient(180deg,#f5f7f9 0,#e3e8ed 26px,#b4c0ca 52px,#6f8294 80px,#2c4257 105px,#0d2133 135px,#0d2133 calc(100% - 135px),#2c4257 calc(100% - 105px),#6f8294 calc(100% - 80px),#b4c0ca calc(100% - 52px),#e3e8ed calc(100% - 26px),#f5f7f9 100%);padding:calc(var(--pad) + 110px) 0 calc(var(--pad) + 110px)}
.tr-split{background:linear-gradient(180deg,#f5f7f9 0,#e3e8ed 26px,#b4c0ca 52px,#6f8294 80px,#2c4257 105px,#0d2133 135px,#0d2133 calc(100% - 135px),#2c4257 calc(100% - 105px),#6f8294 calc(100% - 80px),#b4c0ca calc(100% - 52px),#e3e8ed calc(100% - 26px),#f5f7f9 100%)}
.tr-split--rev{background:#f5f7f9}
.tr-split .tr-split-img{-webkit-mask-image:linear-gradient(180deg,transparent 0,rgba(0,0,0,.35) 70px,#000 170px,#000 calc(100% - 170px),rgba(0,0,0,.35) calc(100% - 70px),transparent 100%);mask-image:linear-gradient(180deg,transparent 0,rgba(0,0,0,.35) 70px,#000 170px,#000 calc(100% - 170px),rgba(0,0,0,.35) calc(100% - 70px),transparent 100%)}
.tr-split--rev .tr-split-img{-webkit-mask-image:linear-gradient(270deg,#000 70%,transparent 100%);mask-image:linear-gradient(270deg,#000 70%,transparent 100%)}
.tr-split:not(.tr-split--rev){min-height:680px}
.tr-cta{background:linear-gradient(180deg,#e3eaf0 0,#e3e8ed 26px,#b4c0ca 52px,#6f8294 80px,#2c4257 105px,#0d2133 135px,#0d2133 100%)!important;padding-top:calc(clamp(64px,7vw,104px) + 100px)!important}
.tr-cta .tr-btn--ghost{border-color:rgba(255,255,255,.55)!important}
.tr-hero::after{background:linear-gradient(90deg,rgba(9,24,38,.92) 0%,rgba(9,24,38,.74) 36%,rgba(9,24,38,.15) 70%,rgba(9,24,38,0) 100%),linear-gradient(0deg,#e9eff4 0%,rgba(233,239,244,0) 16%)}
.tr-hero-caption{color:#4d6272!important}

/* scroll reveal: only when JS has marked the page */
.js-motion [data-reveal]{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1);transition-delay:var(--rd,0ms)}
.js-motion [data-reveal].is-in{opacity:1;transform:none}

/* SLD popover */
.tr-sld-stage{position:relative}
.tr-pop{position:absolute;z-index:5;width:320px;padding:18px 20px 18px;background:rgba(10,28,44,.96);border:1px solid rgba(124,196,255,.35);box-shadow:0 24px 60px rgba(0,0,0,.45);backdrop-filter:blur(6px);color:#c9d5de;opacity:0;transform:translateY(8px) scale(.98);pointer-events:none;transition:opacity .22s ease,transform .22s ease}
.tr-pop.is-open{opacity:1;transform:none;pointer-events:auto}
.tr-pop::before{content:"";position:absolute;left:var(--ax,40px);top:-7px;width:12px;height:12px;background:rgba(10,28,44,.96);border-left:1px solid rgba(124,196,255,.35);border-top:1px solid rgba(124,196,255,.35);transform:rotate(45deg)}
.tr-pop.is-below::before{top:auto;bottom:-7px;transform:rotate(225deg)}
.tr-pop-role{font-size:12px!important;font-weight:600;color:#7cc4ff!important;margin:0 30px 4px 0!important}
.tr-pop h3{color:#fff!important;font-size:18px;line-height:1.25;margin:0 28px 8px 0}
.tr-pop p{font-size:14px!important;line-height:1.55;color:#a9b9c5;margin:0 0 12px!important}
.tr-pop dl{margin:0 0 16px;border-top:1px solid rgba(255,255,255,.12)}
.tr-pop dl div{display:grid;grid-template-columns:70px 1fr;gap:10px;padding:7px 0;border-bottom:1px solid rgba(255,255,255,.08);font-size:13px}
.tr-pop dt{color:#7f95a6}.tr-pop dd{margin:0;color:#fff;font-weight:600}
.tr-pop-actions{display:flex;align-items:center;gap:14px}
.tr-pop-actions a{display:inline-flex;align-items:center;min-height:38px;padding:8px 14px;background:var(--tr-accent);color:#fff;font-size:14px;font-weight:600;text-decoration:none}
.tr-pop-actions a:hover{background:#fff;color:var(--tr-ink)}
.tr-pop-actions button{background:none;border:0;color:#8fa3b3;font:inherit;font-size:13px;cursor:pointer;padding:6px 0}
.tr-pop-x{position:absolute;top:10px;right:10px;width:30px;height:30px;background:none;border:0;color:#8fa3b3;font-size:20px;line-height:1;cursor:pointer}
.tr-pop-x:hover,.tr-pop-actions button:hover{color:#fff}
.tr-sld-foot{display:flex;justify-content:space-between;gap:20px;margin-top:18px;font-size:13px;color:#7f95a6}
.tr-sld-foot button{background:none;border:0;color:#8fa3b3;font:inherit;font-size:13px;cursor:pointer;text-decoration:underline;text-underline-offset:3px}

/* world map of references */
.tr-map{padding:var(--pad) 0 calc(var(--pad) - 20px);background:linear-gradient(180deg,#f5f7f9 0%,#e3eaf0 100%)}
.tr-map-stage{position:relative;margin-top:8px;aspect-ratio:2048/1038;width:100%}
.tr-map-stage>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;opacity:.9}
.tr-pin{position:absolute;width:18px;height:18px;margin:-9px 0 0 -9px;padding:0;border:0;border-radius:50%;background:var(--tr-accent);box-shadow:0 0 0 4px rgba(31,127,208,.22);cursor:pointer;z-index:2;transition:transform .2s}
.tr-pin::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:2px solid var(--tr-accent);opacity:0;animation:tr-ping 2.6s cubic-bezier(.2,.7,.2,1) infinite;animation-delay:var(--pd,0s)}
.tr-pin:hover,.tr-pin.is-active{transform:scale(1.25);background:var(--tr-ink)}
@keyframes tr-ping{0%{transform:scale(.6);opacity:.9}100%{transform:scale(2.6);opacity:0}}
.tr-map-card{position:absolute;z-index:4;width:300px;padding:18px 20px;background:var(--tr-ink);color:#c9d5de;box-shadow:0 24px 60px rgba(13,33,51,.35);opacity:0;transform:translateY(8px);pointer-events:none;transition:opacity .22s,transform .22s}
.tr-map-card.is-open{opacity:1;transform:none;pointer-events:auto}
.tr-map-card small{display:block;color:#7cc4ff;font-size:12px;font-weight:600;margin-bottom:4px}
.tr-map-card h3{color:#fff!important;font-size:18px;line-height:1.25;margin:0 24px 10px 0}
.tr-map-card dl{margin:0 0 14px;font-size:13px}
.tr-map-card dl div{display:grid;grid-template-columns:82px 1fr;gap:8px;padding:6px 0;border-bottom:1px solid rgba(255,255,255,.1)}
.tr-map-card dt{color:#7f95a6}.tr-map-card dd{margin:0;color:#fff}
.tr-map-card a{display:inline-flex;min-height:38px;align-items:center;padding:8px 14px;background:var(--tr-accent);color:#fff;font-size:14px;font-weight:600;text-decoration:none}
.tr-map-list{display:none}
@media (max-width:760px){
  .tr-map-stage{display:none}
  .tr-map-list{display:block;list-style:none;margin:0;padding:0;border-top:2px solid var(--tr-navy)}
  .tr-map-list li{border-bottom:1px solid var(--tr-rule)}
  .tr-map-list a{display:grid;grid-template-columns:90px 1fr;gap:12px;padding:12px 0;text-decoration:none;color:var(--tr-navy);font-weight:600;font-size:15px}
  .tr-map-list span{color:var(--tr-muted);font-weight:400;font-size:13px}
  .tr-pop{width:calc(100vw - 48px);max-width:320px}
}
@media (prefers-reduced-motion:reduce){.js-motion [data-reveal]{opacity:1;transform:none;transition:none}.tr-pin::after{animation:none}}



/* ================= v63: eased fades (stops in tianyu-refresh.css) ================= */
.tr-hero::after{background:linear-gradient(90deg,rgba(9,24,38,.92) 0%,rgba(9,24,38,.74) 36%,rgba(9,24,38,.15) 70%,rgba(9,24,38,0) 100%),linear-gradient(0deg,var(--fx-scrim-home))}
.tr-grid{background:linear-gradient(180deg,var(--fx-in-home),var(--fx-out-home));padding:calc(var(--pad) + 140px) 0 calc(var(--pad) + 140px)}
.tr-split{background:linear-gradient(180deg,var(--fx-in-home),var(--fx-out-home))}
.tr-split--rev{background:#f5f7f9}
.tr-split:not(.tr-split--rev){min-height:760px}
.tr-split:not(.tr-split--rev) .tr-split-copy{padding-top:calc(clamp(48px,6vw,96px) + 90px);padding-bottom:calc(clamp(48px,6vw,96px) + 90px)}
.tr-split .tr-split-img{-webkit-mask-image:linear-gradient(180deg,var(--fx-mask-y));mask-image:linear-gradient(180deg,var(--fx-mask-y))}
.tr-split--rev .tr-split-img{-webkit-mask-image:linear-gradient(270deg,#000 62%,rgba(0,0,0,.5) 82%,transparent 100%);mask-image:linear-gradient(270deg,#000 62%,rgba(0,0,0,.5) 82%,transparent 100%)}
.tr-cta{background:linear-gradient(180deg,var(--fx-in-home2))!important;padding-top:calc(clamp(64px,7vw,104px) + 140px)!important}
html body main.tr-home+.footer{border-top:0!important}
@media (max-width:1000px){.tr-split:not(.tr-split--rev){padding:230px 0 220px;min-height:0}.tr-split:not(.tr-split--rev) .tr-split-copy{padding-top:40px;padding-bottom:0}.tr-split .tr-split-img{-webkit-mask-image:none;mask-image:none}}

/* ================= v63: assembly guide entry (links to transformer-assembly.html) ================= */
.tr-build{position:relative;color:#c9d5de;padding:calc(var(--pad) + 140px) 0;background:linear-gradient(180deg,var(--fx-in-home),var(--fx-out-home))}
.tr-build-grid{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:clamp(40px,5vw,88px);align-items:center}
.tr-build h2{color:#fff!important;max-width:16ch}
.tr-build-copy>p:not(.tr-over){color:#a9b9c5}
.tr-build .tr-over{color:#7cc4ff!important}
.tr-build-steps{list-style:none;margin:28px 0 4px;padding:0;display:grid;grid-template-columns:1fr 1fr;column-gap:24px;border-top:1px solid rgba(255,255,255,.14)}
.tr-build-steps a{position:relative;display:grid;grid-template-columns:30px 1fr;align-items:baseline;gap:8px;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.08);color:#9fb3c2;text-decoration:none;font-size:14px;transition:color .25s}
.tr-build-steps b{font-size:12px;font-weight:700;color:#5f7a8f;font-variant-numeric:tabular-nums;transition:color .25s}
.tr-build-steps a::after{content:"";position:absolute;left:0;bottom:-1px;height:1px;width:100%;background:#7cc4ff;transform:scaleX(0);transform-origin:left;transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.tr-build-steps .is-done a{color:#c9d5de}
.tr-build-steps .is-current a,.tr-build-steps a:hover,.tr-build-steps a:focus-visible{color:#fff}
.tr-build-steps .is-current b,.tr-build-steps a:hover b{color:#7cc4ff}
.tr-build-steps .is-current a::after{transform:scaleX(1)}
.tr-build .tr-btn--primary{background:var(--tr-accent)!important;border-color:var(--tr-accent)!important;color:#fff!important}
.tr-build .tr-btn--primary:hover{background:#fff!important;border-color:#fff!important;color:var(--tr-ink)!important}

.tr-build-fig{position:relative;margin:0;padding:22px 22px 16px;border:1px solid rgba(124,196,255,.16);border-radius:6px;
  background:radial-gradient(70% 60% at 50% 45%,rgba(40,86,124,.45) 0%,rgba(13,33,51,0) 70%),linear-gradient(rgba(124,196,255,.045) 1px,transparent 1px) 0 0/32px 32px,linear-gradient(90deg,rgba(124,196,255,.045) 1px,transparent 1px) 0 0/32px 32px,rgba(8,24,38,.55)}
.tb-svg{display:block;width:100%;height:auto;max-height:520px;overflow:visible}
.tr-build-fig figcaption{display:flex;justify-content:space-between;gap:16px;margin-top:10px;font-size:13px;color:#7f95a6;font-variant-numeric:tabular-nums}
.tr-build-fig figcaption strong{color:#fff;font-weight:600}
.tr-build-fig [data-build-name]{color:#dfe8ee;font-weight:600}
.tr-build-bar{height:2px;margin-top:10px;background:rgba(255,255,255,.1);overflow:hidden}
.tr-build-bar i{display:block;height:100%;background:var(--tr-accent);transform-origin:left;transform:scaleX(var(--p,1));transition:transform .6s cubic-bezier(.2,.7,.2,1)}

/* drawing */
.tb-svg *{transform-box:fill-box}
.tb-ground{stroke:#9fb3c2;stroke-width:1.2;stroke-dasharray:6 6;opacity:.45}
.tb-core rect,.tb-yoke rect{fill:url(#tb-core);stroke:#9fb3c2;stroke-width:1.2}
.tb-lv{fill:url(#tb-lv)}
.tb-hv rect:first-child{fill:url(#tb-hv);stroke:#6b4f30}
.tb-leads path{fill:none;stroke:#f0b86a;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:0}
.tb-leads .tb-lead-lv{stroke-width:4;stroke:#e39a4c}
.tb-oltc rect{fill:#2f4d66;stroke:#c9d5de}.tb-oltc path{stroke:#7cc4ff;opacity:.6}
.tb-tank-body{fill:#24445e;fill-opacity:.12;stroke:#c9d5de;stroke-width:1.6;transition:fill-opacity .9s ease}
.tb-tank>rect:nth-child(2),.tb-cover rect{fill:#2f5270;stroke:#c9d5de;stroke-width:1.2}
.tb-rib{fill:#2f5270;stroke:#6f8699;stroke-width:.6;opacity:.25;transition:opacity .9s ease}
.tb-bush rect{fill:url(#tb-bush)}
.tb-rad rect{fill:#56708a;stroke:#8fa6b8;stroke-width:.6}
.tb-cons rect:first-child{fill:#2c4a63;stroke:#9fb3c2;stroke-width:1.4}.tb-cons path{stroke:#9fb3c2;stroke-width:3;fill:none}.tb-cons rect:last-child{fill:#3b5a74;stroke:#c9d5de}
.tb-dim{fill:none;stroke:#7cc4ff;stroke-width:1.1}
.tb-wave{fill:none;stroke:#7cc4ff;stroke-width:2;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:0}
.tb-test text{fill:#7cc4ff;font-size:12px;font-weight:600;font-family:inherit}
.tr-build-fig[data-stage="8"] .tb-tank-body{fill-opacity:.94}
.tr-build-fig[data-stage="8"] .tb-rib{opacity:1}

/* staged animation: only once JS has taken over (without JS the finished unit shows) */
.tb-live .tb-p{transition:opacity .55s ease var(--d,0ms),transform .8s cubic-bezier(.2,.8,.2,1) var(--d,0ms),stroke-dashoffset 1s ease var(--d,0ms)}
.tb-live .tb-p:not(.is-on){opacity:0}
.tb-live .tb-yoke:not(.is-on){transform:translateY(-70px)}
.tb-live .tb-core:not(.is-on){transform:translateY(24px)}
.tb-live .tb-coil:not(.is-on){transform:translateY(-240px)}
.tb-live .tb-leads:not(.is-on) path,.tb-live .tb-test:not(.is-on) .tb-wave{stroke-dashoffset:1}
.tb-live .tb-leads path,.tb-live .tb-wave{transition:stroke-dashoffset 1.1s ease .15s}
.tb-live .tb-oltc:not(.is-on),.tb-live .tb-bush:not(.is-on),.tb-live .tb-oil:not(.is-on){transform:scaleY(0)}
.tb-oltc,.tb-bush,.tb-oil{transform-origin:50% 100%}
.tb-live .tb-tank:not(.is-on){transform:translateY(180px)}
.tb-live .tb-cover:not(.is-on){transform:translateY(-110px)}
.tb-live .tb-rad--l:not(.is-on){transform:translateX(-90px)}
.tb-live .tb-rad--r:not(.is-on){transform:translateX(90px)}
.tb-live .tb-cons:not(.is-on){transform:translateY(-60px)}
.tb-live .tb-heat:not(.is-now){opacity:0}
.tb-live .tb-heat.is-now{animation:tb-glow 1.4s ease-in-out infinite alternate}
@keyframes tb-glow{from{opacity:.55}to{opacity:1}}
.tb-heat{transform-origin:50% 50%}
.tb-live .tb-oil{transition-duration:.4s,1.4s}

@media (max-width:1000px){
  .tr-build{padding:calc(var(--pad) + 120px) 0}
  .tr-build-grid{grid-template-columns:1fr}
  .tr-build-fig{order:-1}
}
@media (max-width:560px){.tr-build-steps{grid-template-columns:1fr}.tr-build-fig{padding:12px 10px 12px}}
@media (prefers-reduced-motion:reduce){.tb-live .tb-p{transition:none}.tb-live .tb-heat.is-now{animation:none}}
.tr-build-steps{grid-auto-flow:column;grid-template-rows:repeat(4,auto)}
@media (max-width:560px){.tr-build-steps{grid-auto-flow:row;grid-template-rows:none}}