:root {
  --color-industrial-blue: #1f5f8b;
  --color-steel-blue: #28445c;
  --color-deep-ink: #17212b;
  --color-slate: #536171;
  --color-line: #d9e1e8;
  --color-surface: #f5f7f9;
  --color-white: #ffffff;
  --color-accent: #c6502e;
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --container: 1180px;
  --radius: 8px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-deep-ink);
  background: var(--color-white);
  line-height: 1.6;
}

a { color: inherit; }
img { max-width: 100%; height: auto; display: block; }
.skip-link { position: absolute; left: -999px; top: 1rem; background: var(--color-white); padding: .75rem 1rem; z-index: 1000; }
.skip-link:focus { left: 1rem; }
.container { width: min(100% - 32px, var(--container)); margin: 0 auto; }
.section { padding: 72px 0; }
.section--narrow { padding: 56px 0; }
.section--surface { background: var(--color-surface); }
.eyebrow { color: var(--color-industrial-blue); font-weight: 700; font-size: .8rem; text-transform: uppercase; letter-spacing: 0; }
.section-title { margin: 0; font-size: clamp(2rem, 4vw, 3.5rem); line-height: 1.05; letter-spacing: 0; }
.section-text { color: var(--color-slate); max-width: 720px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 18px; border-radius: 6px; border: 1px solid var(--color-industrial-blue); text-decoration: none; font-weight: 700; }
.button--primary { background: var(--color-industrial-blue); color: var(--color-white); }
.button--accent { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-white); }
.button--ghost { background: transparent; color: var(--color-industrial-blue); }
.site-header { border-bottom: 1px solid var(--color-line); background: rgba(255,255,255,.96); position: sticky; top: 0; z-index: 20; }
.site-header__inner { width: min(100% - 32px, var(--container)); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; min-height: 72px; gap: 24px; }
.site-branding__name { font-weight: 800; text-decoration: none; color: var(--color-deep-ink); }
.site-nav__list, .site-footer__nav { list-style: none; display: flex; gap: 22px; padding: 0; margin: 0; }
.site-nav__list a { text-decoration: none; color: var(--color-steel-blue); font-weight: 650; }
.site-header__rfq { background: var(--color-accent); color: var(--color-white); text-decoration: none; min-height: 40px; display: inline-flex; align-items: center; padding: 0 14px; border-radius: 6px; font-weight: 700; }
.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card { border: 1px solid var(--color-line); border-radius: var(--radius); background: var(--color-white); padding: 24px; }
.button-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 24px; }
.product-card { display: flex; flex-direction: column; gap: 14px; }
.product-card h3 { margin: 0; }
.product-card h3 a { text-decoration: none; color: var(--color-deep-ink); }
.spec-list { display: grid; grid-template-columns: minmax(120px, .7fr) 1fr; gap: 10px 16px; margin: 0; }
.spec-list dt { color: var(--color-steel-blue); font-weight: 800; }
.spec-list dd { margin: 0; color: var(--color-slate); }
.product-visual {
  min-height: 320px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: linear-gradient(135deg, #eef4f8 0%, #ffffff 58%, #e6edf3 100%);
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 24px;
}
.product-visual img { width: 100%; height: 100%; object-fit: cover; border-radius: 6px; }
.technical-visual { position: relative; width: min(100%, 460px); height: 150px; }
.technical-visual__bar {
  position: absolute;
  left: 70px;
  right: 110px;
  top: 52px;
  height: 46px;
  border-radius: 23px;
  background: linear-gradient(90deg, #2f536b, var(--color-industrial-blue));
  box-shadow: inset 0 8px 18px rgba(255,255,255,.18);
}
.technical-visual__rod {
  position: absolute;
  left: 220px;
  right: 26px;
  top: 66px;
  height: 18px;
  border-radius: 9px;
  background: linear-gradient(90deg, #c9d4dc, #ffffff 45%, #9dafbd);
  border: 1px solid #9dafbd;
}
.technical-visual__mount {
  position: absolute;
  top: 39px;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: 14px solid var(--color-steel-blue);
  background: var(--color-white);
}
.technical-visual__mount--left { left: 0; }
.technical-visual__mount--right { right: 0; border-color: var(--color-industrial-blue); }
.process-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; margin-top: 32px; }
.process-card { position: relative; min-height: 230px; padding-top: 58px; }
.process-card__index {
  position: absolute;
  left: 24px;
  top: 20px;
  color: var(--color-industrial-blue);
  font-size: .9rem;
  font-weight: 900;
}
.check-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; color: var(--color-steel-blue); }
.check-list li { position: relative; padding-left: 24px; }
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-accent);
}
.check-list--ordered { counter-reset: hyhyd-step; }
.check-list--ordered li { counter-increment: hyhyd-step; padding-left: 34px; }
.check-list--ordered li::before {
  content: counter(hyhyd-step);
  top: .12em;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  color: var(--color-white);
  font-size: .78rem;
  font-weight: 800;
}
.application-card,
.quality-card,
.about-capability .card { min-height: 220px; }
.application-card h2,
.quality-card h2,
.about-capability h3 { margin-top: 0; }
.application-card { border-top: 4px solid var(--color-industrial-blue); }
.quality-card { border-top: 4px solid var(--color-accent); }
.about-capability { margin-top: 32px; }
.rfq-cta .grid { align-items: center; }
.rfq-cta .button { width: fit-content; }
.site-footer { background: var(--color-deep-ink); color: var(--color-white); padding: 48px 0; }
.site-footer__inner { width: min(100% - 32px, var(--container)); margin: 0 auto; display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px; }

@media (max-width: 860px) {
  .site-header__inner { align-items: flex-start; flex-direction: column; padding: 16px 0; }
  .site-nav__list { flex-wrap: wrap; gap: 12px 18px; }
  .grid--2, .grid--3, .grid--4, .process-grid, .site-footer__inner { grid-template-columns: 1fr; }
  .product-visual { min-height: 240px; }
  .technical-visual { transform: scale(.78); }
  .spec-list { grid-template-columns: 1fr; }
}