:root {
  --do-navy: #03283f;
  --do-deep: #02243a;
  --do-ink: #0b2a43;
  --do-red: #dc1e2b;
  --do-paper: #f8f7f3;
  --do-line: #d9d6cf;
  --do-copy: #354d60;
}

.do-page { width: 100%; overflow: hidden; color: var(--do-ink); background: var(--do-paper); font-family: Inter,Arial,sans-serif; }
.do-page *, .do-page *::before, .do-page *::after { box-sizing: border-box; }
.do-page img { display: block; max-width: none; }
.do-page svg { fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
.do-symbols { position: absolute; width: 0; height: 0; overflow: hidden; }

/* 01 — hero */
.do-hero { position: relative; min-height: clamp(580px, calc(100vh - 76px), 880px); height: calc(100vh - 76px); overflow: hidden; isolation: isolate; color: #fff; background: var(--do-deep); display: flex; align-items: center; }
.do-hero-photo { position: absolute; z-index: -3; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 52% 53%; }
.do-hero-shade { position: absolute; z-index: -2; inset: 0; background: linear-gradient(90deg,rgba(1,32,51,.93) 0%,rgba(1,34,54,.84) 34%,rgba(1,34,54,.42) 64%,rgba(1,34,54,.12) 100%),linear-gradient(180deg,rgba(0,21,34,.25),transparent 40%,rgba(0,22,36,.2)); }
.do-header { position: absolute; z-index: 4; inset: 0 0 auto; height: calc(9.7 * var(--vln-activity-vw)); display: grid; grid-template-columns: 1fr calc(16.2 * var(--vln-activity-vw)) 1fr; align-items: start; padding: calc(1.77 * var(--vln-activity-vw)) calc(2.03 * var(--vln-activity-vw)) 0; color: #fff; font-size: calc(.82 * var(--vln-activity-type-vw)); font-weight: 800; text-transform: uppercase; white-space: nowrap; }
.do-nav { display: flex; align-items: center; gap: calc(1.13 * var(--vln-activity-vw)); padding-top: calc(1.52 * var(--vln-activity-vw)); }
.do-nav-right { justify-content: flex-end; }
.do-nav a { color: #fff; opacity: .95; transition: color .2s ease; }
.do-nav a:hover { color: #ff4047; }
.do-nav i { width: 1px; height: calc(.92 * var(--vln-activity-vw)); background: rgba(255,255,255,.65); }
.do-brand { display: flex; justify-content: center; }
.do-brand img { width: calc(13.65 * var(--vln-activity-vw)); height: auto; }
.do-top-request { margin-left: calc(.38 * var(--vln-activity-vw)); padding: calc(.72 * var(--vln-activity-vw)) calc(1.3 * var(--vln-activity-vw)); border: 1px solid rgba(255,255,255,.75); border-radius: calc(.2 * var(--vln-activity-vw)); }
.do-menu-toggle,.do-mobile-nav { display: none; }
.do-hero-copy { position: relative; z-index: 2; left: auto; top: auto; width: min(92%, 1540px); max-width: 680px; margin-left: max(32px, calc((100% - 1540px) / 2)); margin-top: 20px; }
.do-hero-kicker { margin: 0 0 calc(.9 * var(--vln-activity-vw)); color: var(--do-red); font-size: calc(.9 * var(--vln-activity-type-vw)); font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.do-hero h1 { margin: 0 0 calc(1.35 * var(--vln-activity-vw)); color: #fff; font-size: clamp(46px, 4.4vw, 76px); font-weight: 900; letter-spacing: -.025em; line-height: 1.08; text-transform: uppercase; }
.do-hero-lead { margin: 0 0 calc(1.45 * var(--vln-activity-vw)); color: rgba(255,255,255,.94); font-size: clamp(15px, 1.25vw, 20px); line-height: 1.58; }
.do-outline-button { display: inline-flex; align-items: center; justify-content: center; gap: calc(1.55 * var(--vln-activity-vw)); height: 52px; padding: 0 26px; color: #fff; border: 2px solid var(--do-red); background: rgba(1,31,49,.25); font-size: 14px; font-weight: 800; text-transform: uppercase; transition: all .25s ease; }
.do-outline-button:hover { color: #fff; background: var(--do-red); }
.do-outline-button span { font-size: 22px; font-weight: 300; transition: transform .25s ease; }
.do-outline-button:hover span { transform: translateX(5px); }

/* 02 — main discipline strip */
.do-process { height: calc(5.55 * var(--vln-activity-vw)); display: grid; grid-template-columns: repeat(4,1fr); background: linear-gradient(90deg,#fbfaf7,#f6f5f1 52%,#fbfaf7); border-bottom: 1px solid #d4d1ca; }
.do-process-item { position: relative; display: flex; align-items: center; justify-content: center; gap: calc(1.48 * var(--vln-activity-vw)); color: var(--do-ink); font-size: calc(1.04 * var(--vln-activity-type-vw)); text-transform: uppercase; }
.do-process-item svg { width: calc(3.06 * var(--vln-activity-vw)); height: calc(3.06 * var(--vln-activity-vw)); stroke-width: 1.55; }
.do-process-item:not(:last-child)::after { content: ''; position: absolute; top: 20%; right: 0; width: 1px; height: 60%; background: #b9bcbb; }

.do-workflow { height: calc(10.47 * var(--vln-activity-vw)); display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(2 * var(--vln-activity-vw)); align-items: center; padding: calc(.82 * var(--vln-activity-vw)) calc(2.48 * var(--vln-activity-vw)) calc(.9 * var(--vln-activity-vw)); background: var(--do-paper); }
.do-workflow-item { min-width: 0; display: grid; grid-template-columns: calc(4.9 * var(--vln-activity-vw)) 1fr; align-items: center; gap: calc(.94 * var(--vln-activity-vw)); }
.do-workflow-item svg { width: calc(4.52 * var(--vln-activity-vw)); height: calc(5.55 * var(--vln-activity-vw)); color: var(--do-red); stroke-width: 1.35; }
.do-workflow-item h2 { margin: 0 0 calc(.48 * var(--vln-activity-vw)); color: var(--do-red); font-size: calc(1.03 * var(--vln-activity-type-vw)); font-weight: 800; line-height: 1; text-transform: uppercase; }
.do-workflow-item p { margin: 0; color: var(--do-copy); font-size: calc(.78 * var(--vln-activity-type-vw)); line-height: 1.42; }
.do-red-arrow { color: var(--do-red); font-size: calc(3.1 * var(--vln-activity-type-vw)); font-weight: 300; text-align: center; }

/* 04 — laboratory */
.do-lab { min-height: calc(46.28 * var(--vln-activity-vw)); height: auto; padding: calc(.92 * var(--vln-activity-vw)) calc(1.9 * var(--vln-activity-vw)) calc(1.05 * var(--vln-activity-vw)); background: var(--do-paper); }
.do-lab-frame { min-height: calc(44 * var(--vln-activity-vw)); height: auto; display: grid; grid-template-columns: 45.2% 54.8%; overflow: hidden; border: 1px solid #d8d4cc; border-radius: calc(1.02 * var(--vln-activity-vw)); background: #f6f4f1; }
.do-lab-main { width: 100%; height: 100%; object-fit: cover; object-position: 48% center; }
.do-lab-rows { min-width: 0; min-height: 0; display: grid; grid-template-rows: repeat(3,minmax(0,1fr)); overflow: hidden; background: #f6f4f1; }
.do-lab-row { min-width: 0; min-height: 0; display: grid; grid-template-columns: 39.5% 27.3% 33.2%; align-items: stretch; overflow: hidden; border-bottom: 1px solid #d8d4cc; background: #f6f4f1; }
.do-lab-row:last-child { border-bottom: 0; }
.do-lab-copy { position: relative; min-width: 0; padding: calc(1.03 * var(--vln-activity-vw)) calc(.55 * var(--vln-activity-vw)) calc(.72 * var(--vln-activity-vw)) calc(1.8 * var(--vln-activity-vw)); background: #f6f4f1; }
.do-lab-copy b { display: block; margin-bottom: calc(.35 * var(--vln-activity-vw)); color: var(--do-red); font-size: calc(1.05 * var(--vln-activity-type-vw)); font-weight: 900; }
.do-lab-copy h2 { margin: 0 0 calc(.55 * var(--vln-activity-vw)); color: var(--do-ink); font-size: calc(1.49 * var(--vln-activity-type-vw)); font-weight: 800; line-height: 1.08; }
.do-lab-copy p { margin: 0; color: #253f52; font-size: calc(.78 * var(--vln-activity-type-vw)); line-height: 1.48; }
.do-tech { width: 100%; height: 100%; min-width: 0; min-height: 0; padding: calc(.72 * var(--vln-activity-vw)) calc(.82 * var(--vln-activity-vw)); object-fit: contain; background: #f6f4f1; }
.do-lab-thumb { width: calc(100% - calc(.72 * var(--vln-activity-vw))); height: calc(100% - calc(.72 * var(--vln-activity-vw))); min-width: 0; min-height: 0; margin: calc(.36 * var(--vln-activity-vw)); object-fit: cover; border-radius: calc(.6 * var(--vln-activity-vw)); }
.do-lab-thumb-one { object-position: center; }
.do-lab-thumb-two { object-position: center; }
.do-lab-thumb-three { object-position: center; }

/* 05 — load/pile test */
.do-loading { min-height: calc(50.44 * var(--vln-activity-vw)); height: auto; display: grid; grid-template-columns: 36.3% 26.7% 10.7% 26.3%; color: #fff; background: linear-gradient(90deg,#002842,#00263f 49%,#002239); }
.do-loading-left { min-width: 0; padding: calc(1.27 * var(--vln-activity-vw)) calc(1.1 * var(--vln-activity-vw)) calc(1.35 * var(--vln-activity-vw)) calc(1.62 * var(--vln-activity-vw)); }
.do-loading-left > img { width: 100%; height: calc(22.95 * var(--vln-activity-vw)); object-fit: cover; object-position: center 54%; border-radius: calc(.54 * var(--vln-activity-vw)); }
.do-dark-list { color: #fff; }
.do-loading-left .do-dark-list { display: grid; gap: calc(.8 * var(--vln-activity-vw)); padding: calc(1.28 * var(--vln-activity-vw)) calc(.55 * var(--vln-activity-vw)) 0 calc(.95 * var(--vln-activity-vw)); }
.do-dark-list article { display: flex; align-items: flex-start; gap: calc(.75 * var(--vln-activity-vw)); }
.do-dark-list b { color: var(--do-red); font-size: calc(1.15 * var(--vln-activity-type-vw)); font-weight: 900; line-height: 1.1; margin-top: calc(.05 * var(--vln-activity-vw)); }
.do-dark-list h2 { margin: 0 0 calc(.18 * var(--vln-activity-vw)); color: #fff; font-size: calc(1.18 * var(--vln-activity-type-vw)); font-weight: 800; line-height: 1.1; }
.do-dark-list p { margin: 0; color: rgba(255,255,255,.83); font-size: calc(.75 * var(--vln-activity-type-vw)); line-height: 1.38; }
.do-loading-schema { position: relative; min-width: 0; display: flex; flex-direction: column; align-items: center; padding: calc(1.45 * var(--vln-activity-vw)) calc(.18 * var(--vln-activity-vw)) calc(.55 * var(--vln-activity-vw)); overflow: hidden; }
.do-loading-schema h2 { position: relative; z-index: 2; margin: 0; color: #fff; font-size: calc(1.08 * var(--vln-activity-type-vw)); font-weight: 800; line-height: 1; text-transform: uppercase; }
.do-loading-schema img { width: 100%; height: calc(100% - calc(1.2 * var(--vln-activity-vw))); margin-top: calc(-.3 * var(--vln-activity-vw)); object-fit: cover; object-position: center 48%; }
.do-stats { align-self: start; margin-top: calc(1.2 * var(--vln-activity-vw)); padding: calc(.95 * var(--vln-activity-vw)) calc(.72 * var(--vln-activity-vw)) calc(.82 * var(--vln-activity-vw)); border: 1px solid rgba(255,255,255,.74); border-radius: calc(.55 * var(--vln-activity-vw)); color: #fff; }
.do-stats > div:not(.do-chart) { margin-bottom: calc(.58 * var(--vln-activity-vw)); }
.do-stats small { display: block; margin-bottom: calc(.03 * var(--vln-activity-vw)); color: rgba(255,255,255,.84); font-size: calc(.65 * var(--vln-activity-type-vw)); font-style: normal; text-transform: uppercase; }
.do-stats strong { display: block; font-size: calc(1.74 * var(--vln-activity-type-vw)); font-weight: 500; line-height: 1.05; }
.do-chart { position: relative; height: calc(11.6 * var(--vln-activity-vw)); margin-top: calc(.8 * var(--vln-activity-vw)); border-left: 1px solid rgba(255,255,255,.7); border-bottom: 1px solid rgba(255,255,255,.7); background: repeating-linear-gradient(90deg,transparent 0,transparent 24%,rgba(255,255,255,.13) 25%),repeating-linear-gradient(0deg,transparent 0,transparent 24%,rgba(255,255,255,.13) 25%); }
.do-chart span { position: absolute; inset: 9% 8% 8% 5%; clip-path: polygon(0 10%,6% 8%,35% 22%,55% 44%,72% 72%,100% 94%,100% 98%,70% 78%,52% 49%,33% 28%,0 14%); background: #ed2435; }
.do-stats em { display: block; margin-top: calc(.35 * var(--vln-activity-vw)); color: rgba(255,255,255,.85); font-size: calc(.62 * var(--vln-activity-type-vw)); font-style: normal; text-align: center; }
.do-loading-right { display: grid; align-content: start; gap: calc(2 * var(--vln-activity-vw)); padding: calc(1.55 * var(--vln-activity-vw)) calc(1.55 * var(--vln-activity-vw)) calc(1 * var(--vln-activity-vw)) calc(1.65 * var(--vln-activity-vw)); }
.do-loading-right article { display: flex; align-items: flex-start; gap: calc(.75 * var(--vln-activity-vw)); }
.do-loading-right h2 { font-size: calc(1.65 * var(--vln-activity-type-vw)); }
.do-loading-right p { font-size: calc(.85 * var(--vln-activity-type-vw)); line-height: 1.48; }

/* 06 — structure monitoring */
.do-monitoring { min-height: calc(44.51 * var(--vln-activity-vw)); height: auto; display: grid; grid-template-columns: 42.5% 57.5%; padding: calc(.88 * var(--vln-activity-vw)) calc(1.26 * var(--vln-activity-vw)) calc(1.1 * var(--vln-activity-vw)); background: var(--do-paper); }
.do-monitoring-visual { position: relative; min-width: 0; overflow: hidden; display: flex; align-items: center; justify-content: center; }
.do-monitoring-visual img { width: 100%; height: 100%; object-fit: contain; object-position: center; mix-blend-mode: multiply; }
.do-monitoring-list { min-width: 0; display: grid; grid-template-rows: repeat(6,1fr); overflow: hidden; border: 1px solid #dad7d0; border-radius: calc(.85 * var(--vln-activity-vw)); background: rgba(255,255,255,.32); }
.do-monitoring-list article { min-height: 0; display: grid; grid-template-columns: calc(3.2 * var(--vln-activity-vw)) calc(2.4 * var(--vln-activity-vw)) 1fr calc(15.1 * var(--vln-activity-vw)); align-items: center; gap: calc(.75 * var(--vln-activity-vw)); padding: calc(.35 * var(--vln-activity-vw)) calc(.55 * var(--vln-activity-vw)) calc(.35 * var(--vln-activity-vw)) calc(.9 * var(--vln-activity-vw)); border-bottom: 1px solid #dad7d0; }
.do-monitoring-list article:last-child { border-bottom: 0; }
.do-monitoring-list svg { width: calc(3.2 * var(--vln-activity-vw)); height: calc(3.2 * var(--vln-activity-vw)); color: var(--do-red); stroke-width: 1.35; }
.do-monitoring-list b { color: var(--do-red); font-size: calc(1.15 * var(--vln-activity-type-vw)); font-weight: 900; text-align: center; }
.do-monitoring-list h2 { margin: 0 0 calc(.28 * var(--vln-activity-vw)); color: var(--do-ink); font-size: calc(1.38 * var(--vln-activity-type-vw)); font-weight: 800; line-height: 1.1; }
.do-monitoring-list img { width: 100%; height: calc(5.65 * var(--vln-activity-vw)); object-fit: cover; object-position: center; border-radius: calc(.58 * var(--vln-activity-vw)); background: #fff; }

/* 07 — equipment strip */
.do-equipment { min-height: calc(12.99 * var(--vln-activity-vw)); height: auto; display: grid; grid-template-columns: repeat(3,1fr); padding: calc(.86 * var(--vln-activity-vw)) calc(1.25 * var(--vln-activity-vw)); background: var(--do-paper); }
.do-equipment article { min-width: 0; display: grid; grid-template-columns: 1fr 42%; align-items: center; padding: 0 calc(1.05 * var(--vln-activity-vw)); border-right: 1px solid #d5d1ca; }
.do-equipment article:last-child { border-right: 0; }
.do-equipment b { display: block; margin-bottom: calc(.3 * var(--vln-activity-vw)); color: var(--do-red); font-size: calc(.95 * var(--vln-activity-type-vw)); font-weight: 900; }
.do-equipment h2 { margin: calc(.22 * var(--vln-activity-vw)) 0 calc(.45 * var(--vln-activity-vw)); color: var(--do-ink); font-size: calc(1.2 * var(--vln-activity-type-vw)); font-weight: 800; line-height: 1.1; }
.do-equipment p { margin: 0; color: var(--do-copy); font-size: calc(.7 * var(--vln-activity-type-vw)); line-height: 1.42; }
.do-equipment img { width: 100%; height: calc(10.4 * var(--vln-activity-vw)); padding: calc(.5 * var(--vln-activity-vw)); object-fit: contain; }

/* 08 — CTA */
.do-cta { min-height: calc(20.05 * var(--vln-activity-vw)); height: auto; display: grid; grid-template-columns: 44% 56%; overflow: hidden; background: #f6f4ef; }
.do-cta-copy { display: flex; flex-direction: column; align-items: flex-start; justify-content: center; padding: calc(1.2 * var(--vln-activity-vw)) calc(2.1 * var(--vln-activity-vw)) calc(1.2 * var(--vln-activity-vw)) calc(6.85 * var(--vln-activity-vw)); }
.do-cta-copy h2 { margin: 0 0 calc(1 * var(--vln-activity-vw)); color: var(--do-ink); font-size: calc(2.05 * var(--vln-activity-type-vw)); font-weight: 900; line-height: 1.12; text-transform: uppercase; }
.do-cta-copy p { margin: 0 0 calc(1.25 * var(--vln-activity-vw)); color: var(--do-copy); font-size: calc(1.03 * var(--vln-activity-type-vw)); line-height: 1.48; }
.do-cta-copy a { display: inline-flex; align-items: center; justify-content: center; gap: calc(1.55 * var(--vln-activity-vw)); min-width: calc(20.55 * var(--vln-activity-vw)); height: calc(3.73 * var(--vln-activity-vw)); padding: 0 calc(1.6 * var(--vln-activity-vw)); color: #fff; background: var(--do-red); font-size: calc(1.01 * var(--vln-activity-type-vw)); font-weight: 800; text-transform: uppercase; }
.do-cta-copy a:hover { color: #fff; background: #b91723; }
.do-cta-copy a span { font-size: calc(2.25 * var(--vln-activity-type-vw)); font-weight: 300; }
.do-cta > img { width: 100%; height: 100%; object-fit: cover; object-position: center 52%; }

/* 09 — footer */
.do-footer { min-height: calc(16.9 * var(--vln-activity-vw)); height: auto; padding: calc(1.2 * var(--vln-activity-vw)) calc(2.15 * var(--vln-activity-vw)) calc(.75 * var(--vln-activity-vw)); color: #fff; background: radial-gradient(circle at 55% 10%,#063858,#022943 46%,#02263d); }
.do-footer-grid { display: grid; grid-template-columns: 19% 13% 19% 15% 15% 11%; gap: 1.55%; min-height: calc(13.2 * var(--vln-activity-vw)); height: auto; }
.do-footer-brand img { width: calc(11.9 * var(--vln-activity-vw)); height: auto; margin: 0 0 calc(.45 * var(--vln-activity-vw)) calc(.5 * var(--vln-activity-vw)); }
.do-footer ul { list-style: none; margin: 0; padding: 0; }
.do-footer li { display: flex; align-items: flex-start; gap: calc(.55 * var(--vln-activity-vw)); margin-bottom: calc(.43 * var(--vln-activity-vw)); color: rgba(255,255,255,.83); font-size: calc(.71 * var(--vln-activity-type-vw)); line-height: 1.35; }
.do-footer li svg { width: calc(1.18 * var(--vln-activity-vw)); height: calc(1.18 * var(--vln-activity-vw)); flex: 0 0 calc(1.18 * var(--vln-activity-vw)); }
.do-footer-grid > div:not(.do-footer-brand) { display: flex; flex-direction: column; padding-top: calc(.55 * var(--vln-activity-vw)); }
.do-footer h2 { margin: 0 0 calc(.75 * var(--vln-activity-vw)); color: #fff; font-size: calc(.83 * var(--vln-activity-type-vw)); font-weight: 800; text-transform: uppercase; }
.do-footer-grid a { margin-bottom: calc(.53 * var(--vln-activity-vw)); color: rgba(255,255,255,.73); font-size: calc(.74 * var(--vln-activity-type-vw)); line-height: 1.2; }
.do-footer-grid a:hover { color: #fff; }
.do-copyright { margin: calc(.1 * var(--vln-activity-vw)) 0 0; color: rgba(255,255,255,.65); font-size: calc(.72 * var(--vln-activity-type-vw)); text-align: center; }

/* Tablet — rearranges without clipping. */
@media (max-width: 1100px) {
  .do-desktop-only { display: none; }
  .do-hero { height: auto; min-height: 680px; }
  .do-header { height: 82px; grid-template-columns: auto 1fr auto; align-items: center; padding: 0 28px; font-size: 10px; }
  .do-nav { display: none; }
  .do-brand { justify-content: flex-start; }
  .do-brand img { width: 125px; }
  .do-menu-toggle { display: inline-flex; align-items: center; justify-self: end; gap: 9px; padding: 10px 0; color: #fff; border: 0; background: transparent; font: inherit; font-size: 10px; font-weight: 800; text-transform: uppercase; cursor: pointer; }
  .do-menu-bars { width: 23px; display: grid; gap: 5px; }
  .do-menu-bars b { width: 100%; height: 1px; background: currentColor; transition: .2s ease; }
  .do-menu-toggle[aria-expanded='true'] .do-menu-bars b:first-child { transform: translateY(6px) rotate(45deg); }
  .do-menu-toggle[aria-expanded='true'] .do-menu-bars b:nth-child(2) { opacity: 0; }
  .do-menu-toggle[aria-expanded='true'] .do-menu-bars b:last-child { transform: translateY(-6px) rotate(-45deg); }
  .do-mobile-nav { position: absolute; top: 75px; left: 28px; right: 28px; display: grid; grid-template-columns: repeat(2,1fr); visibility: hidden; opacity: 0; transform: translateY(-8px); border: 1px solid rgba(255,255,255,.24); transition: .2s ease; }
  .do-mobile-nav.is-open { visibility: visible; opacity: 1; transform: none; }
  .do-mobile-nav a { padding: 15px 17px; color: #fff; background: rgba(3,39,61,.98); border: 1px solid rgba(255,255,255,.07); font-size: 11px; font-weight: 700; }
  .do-hero-photo { object-position: 62% center; }
  .do-hero-shade { background: linear-gradient(90deg,rgba(1,31,50,.98),rgba(1,32,52,.8) 67%,rgba(1,32,52,.24)); }
  .do-hero-copy { left: 28px; top: 205px; width: min(calc(74 * var(--vln-activity-vw)),590px); }
  .do-hero-kicker { margin-bottom: 16px; font-size: 11px; }
  .do-hero h1 { margin-bottom: 17px; font-size: clamp(44px,calc(7.8 * var(--vln-activity-type-vw)),64px); }
  .do-hero-lead { margin-bottom: 28px; font-size: 15px; line-height: 1.6; }
  .do-outline-button { height: 47px; gap: 14px; padding: 0 18px; border-width: 2px; font-size: 11px; }
  .do-outline-button span { font-size: 22px; }
  .do-process { height: auto; grid-template-columns: repeat(2,1fr); }
  .do-process-item { min-height: 76px; gap: 14px; font-size: 11px; }
  .do-process-item svg { width: 31px; height: 31px; }
  .do-process-item:nth-child(2)::after { display: none; }
  .do-process-item:nth-child(-n+2) { border-bottom: 1px solid var(--do-line); }
  .do-workflow { height: auto; grid-template-columns: repeat(2,1fr); gap: 18px; padding: 34px 28px; }
  .do-workflow-item { grid-template-columns: 56px 1fr; gap: 12px; min-height: 112px; }
  .do-workflow-item svg { width: 50px; height: 58px; }
  .do-workflow-item h2 { margin-bottom: 7px; font-size: 12px; }
  .do-workflow-item p { font-size: 10px; }
  .do-red-arrow { display: none; }
  .do-lab { height: auto; padding: 24px 28px 48px; }
  .do-lab-frame { grid-template-columns: 1fr; border-radius: 9px; }
  .do-lab-main { height: 430px; }
  .do-lab-row { min-height: 210px; grid-template-columns: 1fr 150px 180px; }
  .do-lab-copy { padding: 25px 15px 20px 22px; }
  .do-lab-copy h2 { margin-bottom: 8px; font-size: 18px; }
  .do-lab-copy p { font-size: 10px; }
  .do-tech { padding: 12px; }
  .do-lab-thumb { width: calc(100% - 12px); height: calc(100% - 12px); margin: 6px; border-radius: 6px; }
  .do-loading { height: auto; grid-template-columns: 1fr 1fr; }
  .do-loading-left { padding: 28px; }
  .do-loading-left > img { height: 380px; border-radius: 7px; }
  .do-loading-left .do-dark-list { gap: 14px; padding: 25px 5px 0; }
  .do-dark-list article { display: block; }
  .do-dark-list h2 { margin-bottom: 4px; font-size: 14px; }
  .do-dark-list p { font-size: 10px; }
  .do-loading-schema { padding: 30px 8px 20px; }
  .do-loading-schema h2 { font-size: 13px; }
  .do-loading-schema img { height: 600px; }
  .do-stats { margin: 0 0 32px 28px; padding: 18px 16px; border-radius: 7px; }
  .do-stats small { font-size: 8px; }
  .do-stats strong { font-size: 22px; }
  .do-chart { height: 150px; margin-top: 12px; }
  .do-stats em { margin-top: 5px; font-size: 8px; }
  .do-loading-right { gap: 23px; padding: 0 28px 36px 22px; }
  .do-loading-right article { display: block; }
  .do-loading-right h2 { font-size: 18px; }
  .do-loading-right p { font-size: 10px; }
  .do-monitoring { height: auto; grid-template-columns: 42% 58%; padding: 36px 28px; }
  .do-monitoring-visual { min-height: 690px; }
  .do-monitoring-visual img { object-fit: contain; }
  .do-diagram-label { display: none; }
  .do-monitoring-list { border-radius: 8px; }
  .do-monitoring-list article { grid-template-columns: 42px 1fr 110px; gap: 10px; padding: 8px; }
  .do-monitoring-list svg { width: 34px; height: 34px; }
  .do-monitoring-list h2 { margin-bottom: 4px; font-size: 14px; }
  .do-monitoring-list p { font-size: 8px; }
  .do-monitoring-list img { height: 85px; border-radius: 5px; }
  .do-equipment { height: auto; grid-template-columns: 1fr; padding: 20px 28px; }
  .do-equipment article { min-height: 175px; grid-template-columns: 1fr 210px; padding: 15px 20px; border-right: 0; border-bottom: 1px solid var(--do-line); }
  .do-equipment article:last-child { border-bottom: 0; }
  .do-equipment h2 { margin: 4px 0 7px; font-size: 15px; }
  .do-equipment p { font-size: 10px; }
  .do-equipment img { width: 100%; height: 140px; padding: 8px; }
  .do-cta { height: auto; min-height: 350px; grid-template-columns: 46% 54%; }
  .do-cta-copy { padding: 38px 28px; }
  .do-cta-copy h2 { margin-bottom: 13px; font-size: 27px; }
  .do-cta-copy p { margin-bottom: 20px; font-size: 11px; }
  .do-cta-copy a { min-width: 190px; height: 45px; gap: 13px; padding: 0 17px; font-size: 10px; }
  .do-cta-copy a span { font-size: 21px; }
  .do-footer { height: auto; padding: 36px 28px 25px; }
  .do-footer-grid { height: auto; grid-template-columns: repeat(3,1fr); gap: 28px 22px; }
  .do-footer-brand { grid-row: span 2; }
  .do-footer-brand img { width: 130px; margin: 0 0 14px; }
  .do-footer li { gap: 7px; margin-bottom: 8px; font-size: 9px; }
  .do-footer li svg { width: 14px; height: 14px; flex-basis: 14px; }
  .do-footer-grid > div:not(.do-footer-brand) { padding-top: 6px; }
  .do-footer h2 { margin-bottom: 11px; font-size: 10px; }
  .do-footer-grid a { margin-bottom: 8px; font-size: 9px; }
  .do-copyright { margin-top: 28px; font-size: 9px; }
}

/* Phone — single-column reading order. */
@media (max-width: 640px) {
  .do-header { height: 74px; padding: 0 20px; }
  .do-brand img { width: 108px; }
  .do-menu-toggle span:last-child { display: none; }
  .do-mobile-nav { top: 68px; left: 20px; right: 20px; grid-template-columns: 1fr; }
  .do-hero { min-height: 650px; }
  .do-hero-photo { object-position: 68% center; }
  .do-hero-copy { left: 20px; right: 20px; top: auto; bottom: 70px; width: auto; }
  .do-hero h1 { font-size: clamp(38px,calc(11 * var(--vln-activity-type-vw)),54px); }
  .do-hero-lead { font-size: 14px; }
  .do-workflow { grid-template-columns: 1fr; padding: 30px 20px; }
  .do-workflow-item { min-height: 95px; }
  .do-workflow-item p { font-size: 11px; }
  .do-lab { padding: 20px 15px 40px; }
  .do-lab-main { height: 330px; }
  .do-lab-row { grid-template-columns: 1fr 120px; min-height: 250px; }
  .do-lab-copy { padding: 20px 14px; }
  .do-lab-copy p { font-size: 9px; }
  .do-tech { padding: 10px; }
  .do-lab-thumb { display: none; }
  .do-loading { grid-template-columns: 1fr; }
  .do-loading-left { padding: 22px 20px 30px; }
  .do-loading-left > img { height: auto; aspect-ratio: 4/3; }
  .do-loading-schema img { height: auto; max-height: 680px; }
  .do-stats { margin: 10px 20px 28px; }
  .do-loading-right { padding: 10px 20px 45px; }
  .do-monitoring { grid-template-columns: 1fr; padding: 28px 15px 38px; }
  .do-monitoring-visual { min-height: 0; height: 620px; }
  .do-monitoring-list article { min-height: 122px; grid-template-columns: 38px 1fr 86px; padding: 8px 6px; }
  .do-monitoring-list p { font-size: 8px; }
  .do-monitoring-list img { height: 82px; }
  .do-equipment { padding: 14px 15px; }
  .do-equipment article { grid-template-columns: 1fr 125px; padding: 14px 8px; }
  .do-equipment p { font-size: 9px; }
  .do-cta { grid-template-columns: 1fr; }
  .do-cta-copy { min-height: 310px; padding: 40px 24px; }
  .do-cta-copy h2 { font-size: 28px; }
  .do-cta-copy p { font-size: 11px; }
  .do-cta > img { height: auto; aspect-ratio: 4/3; }
  .do-footer { padding-inline: 22px; }
  .do-footer-grid { grid-template-columns: repeat(2,1fr); }
  .do-footer-brand { grid-column: 1/-1; grid-row: auto; }
}

@media (max-width: 420px) {
  .do-process-item { min-height: 68px; padding: 7px; font-size: 9px; }
  .do-process-item svg { width: 27px; height: 27px; }
  .do-lab-row { grid-template-columns: 1fr; }
  .do-tech { height: 190px; }
  .do-monitoring-visual { height: 540px; }
  .do-monitoring-list article { grid-template-columns: 34px 1fr; }
  .do-monitoring-list img { display: none; }
  .do-equipment article { grid-template-columns: 1fr 105px; }
  .do-footer-grid { grid-template-columns: 1fr; }
  .do-footer-brand { grid-column: auto; }
}