:root {
  --navy: #082b52;
  --navy-deep: #031a31;
  --blue: #0b4c8c;
  --blue-bright: #1675bd;
  --orange: #f38a1f;
  --orange-dark: #d96c08;
  --ink: #162332;
  --muted: #5e6c7b;
  --line: #dce4eb;
  --soft: #f3f6f8;
  --white: #ffffff;
  --success: #1f8a58;
  --shadow-sm: 0 10px 26px rgba(15, 38, 61, 0.09);
  --shadow-lg: 0 24px 58px rgba(4, 29, 54, 0.17);
  --radius: 6px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0;
  overflow-x: hidden;
}
body.menu-open { overflow: hidden; }
img, video { display: block; width: 100%; }
button, input, textarea, select { font: inherit; }
a { color: inherit; text-decoration: none; }
button { color: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.16; letter-spacing: 0; }
h1 { margin-bottom: 24px; font-size: clamp(2.9rem, 6vw, 5.75rem); font-weight: 800; max-width: 850px; }
h2 { margin-bottom: 22px; font-size: clamp(2rem, 3.5vw, 3.25rem); font-weight: 760; }
h3 { margin-bottom: 10px; font-size: 1.15rem; }
p { color: var(--muted); }
svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.section { padding: 112px 0; }
.section-tint { background: var(--soft); }
.skip-link { position: fixed; top: -60px; left: 12px; z-index: 10000; padding: 10px 16px; color: #fff; background: var(--navy); }
.skip-link:focus { top: 12px; }
.eyebrow { margin-bottom: 14px; color: var(--blue); font-size: .78rem; font-weight: 800; text-transform: uppercase; letter-spacing: .14em; }
.eyebrow.light { color: #8fc9f5; }
.section-heading { max-width: 760px; margin-bottom: 56px; }
.section-heading.centered { margin-inline: auto; text-align: center; }
.section-heading p:last-child { max-width: 700px; }
.section-heading.centered p:last-child { margin-inline: auto; }
.section-heading.light h2, .service-head h2 { color: #fff; }
.section-heading.light p, .service-head p { color: #c8d8e8; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 1000; color: #fff; transition: background .25s ease, box-shadow .25s ease; }
.topbar { height: 38px; background: rgba(3, 26, 49, .96); font-size: .78rem; }
.topbar-inner, .topbar-links { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.topbar-links { gap: 22px; }
.topbar a:hover { color: #9fd4ff; }
.main-nav { height: 78px; border-bottom: 1px solid rgba(255,255,255,.18); transition: background .25s ease, height .25s ease; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.site-header.scrolled .main-nav { height: 70px; color: var(--ink); background: rgba(255,255,255,.97); border-bottom-color: var(--line); box-shadow: 0 8px 26px rgba(6,30,52,.09); backdrop-filter: blur(12px); }
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 205px; }
.brand img { width: 72px; height: 24px; object-fit: contain; object-position: left center; }
.brand-text { display: grid; line-height: 1; }
.brand-text strong { font-size: 1.12rem; letter-spacing: .08em; }
.brand-text small { margin-top: 4px; font-size: .62rem; font-weight: 600; opacity: .72; }
.nav-menu { display: flex; align-items: center; gap: 28px; font-size: .88rem; font-weight: 650; }
.nav-menu > a:not(.nav-cta) { position: relative; padding: 26px 0; }
.nav-menu > a:not(.nav-cta)::after { content: ""; position: absolute; right: 50%; bottom: 17px; left: 50%; height: 2px; background: var(--orange); transition: left .2s ease, right .2s ease; }
.nav-menu > a:hover::after, .nav-menu > a.active::after { right: 0; left: 0; }
.nav-cta { padding: 11px 18px; color: #fff; background: var(--orange); border-radius: 4px; box-shadow: 0 8px 20px rgba(243,138,31,.23); }
.nav-cta:hover { background: var(--orange-dark); }
.menu-toggle { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; padding: 0; color: currentColor; background: transparent; border: 1px solid currentColor; border-radius: 4px; }

.hero { position: relative; display: flex; align-items: center; min-height: 74svh; padding: 140px 0 40px; color: #fff; background: var(--navy-deep); isolation: isolate; }
.hero-media, .hero-shade { position: absolute; inset: 0; z-index: -2; }
.hero-media { background: url("asset/hero-mixer.webp") center 54% / cover no-repeat; }
.hero-shade { z-index: -1; background: linear-gradient(90deg, rgba(2,18,34,.94) 0%, rgba(5,34,61,.80) 45%, rgba(5,34,61,.20) 78%, rgba(5,34,61,.08) 100%); }
.hero-content { position: relative; }
.hero-lead { max-width: 720px; margin-bottom: 24px; color: #dbe7f0; font-size: 1.12rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 30px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 50px; padding: 13px 22px; border: 1px solid transparent; border-radius: 4px; font-size: .9rem; font-weight: 760; cursor: pointer; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #fff; background: var(--orange); box-shadow: 0 12px 28px rgba(225,112,11,.27); }
.button-primary:hover { background: var(--orange-dark); }
.button-ghost { color: #fff; border-color: rgba(255,255,255,.48); background: rgba(255,255,255,.07); backdrop-filter: blur(8px); }
.button-ghost:hover { background: rgba(255,255,255,.15); }
.button-dark { color: #fff; background: var(--navy); }
.hero-note { display: flex; flex-wrap: wrap; gap: 32px; }
.hero-note span { padding-left: 14px; color: #bfd0df; border-left: 2px solid var(--orange); font-size: .82rem; }
.hero-note strong { display: block; margin-bottom: 2px; color: #fff; font-size: 1.25rem; }

.proof-strip { position: relative; z-index: 4; background: #fff; box-shadow: 0 14px 36px rgba(5,34,61,.12); }
.proof-grid { display: grid; grid-template-columns: repeat(5, 1fr); }
.proof-grid > div { min-height: 112px; display: flex; flex-direction: column; justify-content: center; padding: 20px 24px; border-right: 1px solid var(--line); }
.proof-grid > div:last-child { border-right: 0; }
.proof-grid strong { color: var(--navy); font-size: 1.65rem; }
.proof-grid span { color: var(--muted); font-size: .76rem; }

.split-layout, .structure-grid, .applications-layout, .parts-layout, .faq-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 80px; align-items: center; }
.media-stack { position: relative; min-height: 530px; }
.media-main { width: 86%; height: 440px; object-fit: cover; box-shadow: var(--shadow-lg); }
.media-inset { position: absolute; right: 0; bottom: 0; width: 48%; height: 230px; object-fit: cover; border: 8px solid #fff; box-shadow: var(--shadow-sm); }
.media-badge { position: absolute; bottom: 36px; left: 24px; display: grid; min-width: 138px; padding: 18px 20px; color: #fff; background: var(--orange); box-shadow: var(--shadow-sm); }
.media-badge strong { font-size: 1.9rem; line-height: 1; }
.media-badge span { margin-top: 6px; font-size: .72rem; }
.section-copy > p { margin-bottom: 20px; }
.check-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 22px; margin: 28px 0 30px; }
.check-grid span { position: relative; padding-left: 24px; color: #33465a; font-size: .88rem; font-weight: 650; }
.check-grid span::before { content: ""; position: absolute; top: .55em; left: 0; width: 11px; height: 6px; border-bottom: 2px solid var(--orange); border-left: 2px solid var(--orange); transform: rotate(-45deg); }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--blue); font-size: .9rem; font-weight: 780; }
.text-link:hover { color: var(--orange-dark); }

.equipment-overview { display: grid; grid-template-columns: 1.04fr .96fr; gap: 54px; align-items: center; }
.product-photo, .structure-image { position: relative; overflow: hidden; border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.product-photo img { min-height: 520px; object-fit: cover; }
.image-zoom { position: absolute; right: 18px; bottom: 18px; display: grid; width: 46px; height: 46px; place-items: center; color: #fff; background: var(--navy); border: 0; border-radius: 4px; cursor: pointer; }
.component-list { border-top: 1px solid var(--line); }
.component-list article { display: grid; grid-template-columns: 54px 1fr; gap: 18px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.component-list article > span { color: var(--orange); font-size: 1.15rem; font-weight: 800; }
.component-list h3 { font-size: 1.1rem; }
.component-list p { margin: 0; font-size: .91rem; }

.process-flow { position: relative; display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; margin: 0 0 110px; padding: 0; list-style: none; }
.process-flow::before { content: ""; position: absolute; top: 27px; right: 8%; left: 8%; height: 1px; background: #b9cad8; }
.process-flow li { position: relative; padding: 0 18px; text-align: center; }
.process-flow li > span { position: relative; z-index: 1; display: grid; width: 56px; height: 56px; place-items: center; margin: 0 auto 22px; color: #fff; background: var(--navy); border: 7px solid #e8eff4; border-radius: 50%; font-size: .75rem; font-weight: 800; }
.process-flow li:nth-child(3) > span, .process-flow li:nth-child(6) > span { background: var(--orange); }
.process-flow h3 { font-size: 1rem; }
.process-flow p { margin: 0; font-size: .8rem; line-height: 1.55; }
.structure-grid { gap: 72px; }
.structure-image img { aspect-ratio: 4/3; object-fit: cover; }
.feature-list { margin: 26px 0 0; padding: 0; list-style: none; }
.feature-list li { position: relative; margin-bottom: 18px; padding-left: 26px; color: var(--muted); font-size: .91rem; }
.feature-list li::before { content: ""; position: absolute; top: .7em; left: 0; width: 10px; height: 10px; background: var(--orange); border-radius: 50%; box-shadow: 0 0 0 5px rgba(243,138,31,.13); }
.feature-list strong { color: var(--ink); }
.feature-list.compact li { margin-bottom: 13px; }

.advantages-section { color: #fff; background: linear-gradient(135deg, var(--navy-deep), var(--blue)); }
.advantage-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: rgba(255,255,255,.18); }
.advantage-grid article { min-height: 235px; padding: 32px; background: rgba(4,31,57,.72); }
.advantage-grid span { display: inline-block; margin-bottom: 40px; color: #75b7e8; font-size: .78rem; font-weight: 800; }
.advantage-grid h3 { color: #fff; }
.advantage-grid p { margin: 0; color: #bdd0df; font-size: .9rem; }

.applications-layout { grid-template-columns: .95fr 1.05fr; }
.material-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin: 34px 0 26px; background: var(--line); border: 1px solid var(--line); }
.material-grid > div { min-height: 104px; padding: 20px; background: #fff; }
.material-grid strong, .material-grid span { display: block; }
.material-grid strong { color: var(--navy); font-size: .95rem; }
.material-grid span { margin-top: 5px; color: var(--muted); font-size: .78rem; }
.material-note { padding-left: 18px; border-left: 3px solid var(--orange); font-size: .88rem; }
.material-note strong { color: var(--ink); }
.application-visual { margin: 0; }
.application-visual img { border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.application-visual figcaption { margin-top: 14px; color: #74808b; font-size: .74rem; }

.case-gallery { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 225px; gap: 14px; }
.case-tile { position: relative; overflow: hidden; padding: 0; color: #fff; background: var(--navy); border: 0; border-radius: var(--radius); cursor: pointer; text-align: left; }
.case-tile.case-large { grid-column: span 2; grid-row: span 2; }
.case-tile img { height: 100%; object-fit: cover; transition: transform .45s ease; }
.case-tile:hover img { transform: scale(1.045); }
.case-tile::after { content: ""; position: absolute; inset: 35% 0 0; background: linear-gradient(transparent, rgba(2,17,31,.9)); }
.case-tile span { position: absolute; right: 22px; bottom: 18px; left: 22px; z-index: 1; }
.case-tile strong, .case-tile small { display: block; }
.case-tile strong { font-size: 1rem; }
.case-tile small { margin-top: 3px; color: #c8d4df; font-size: .72rem; }
.video-feature { display: grid; grid-template-columns: 1.35fr .65fr; gap: 60px; align-items: center; margin-top: 84px; }
.video-frame { position: relative; overflow: hidden; background: #071b2c; border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.video-frame video { aspect-ratio: 16/9; object-fit: cover; }
.video-watermark { position: absolute; top: 16px; right: 16px; padding: 5px 9px; color: rgba(255,255,255,.84); background: rgba(8,43,82,.68); border-left: 3px solid var(--orange); font-size: .68rem; font-weight: 800; letter-spacing: .1em; pointer-events: none; }

.spec-wrap { overflow-x: auto; border: 1px solid var(--line); box-shadow: var(--shadow-sm); }
table { width: 100%; min-width: 860px; border-collapse: collapse; background: #fff; }
caption { padding: 18px 22px; color: #fff; background: var(--navy); font-size: .8rem; font-weight: 700; text-align: left; }
th, td { padding: 17px 20px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
th { color: var(--navy); background: #eaf0f5; font-size: .78rem; text-transform: uppercase; }
td { color: #4a5968; font-size: .84rem; }
tbody tr:hover { background: #fafcfd; }
td:first-child { color: var(--navy); font-weight: 750; }
.spec-footnotes { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-top: 0; }
.spec-footnotes span { padding: 15px 18px; color: var(--muted); border-right: 1px solid var(--line); font-size: .75rem; text-align: center; }
.spec-footnotes span:last-child { border-right: 0; }

.comparison-section { background: #fff; }
.comparison-table { border: 1px solid var(--line); }
.comparison-row { display: grid; grid-template-columns: 1.1fr 1.35fr 1fr 1fr; }
.comparison-row > span { min-height: 72px; display: flex; align-items: center; padding: 15px 18px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--muted); font-size: .8rem; }
.comparison-row > span:last-child { border-right: 0; }
.comparison-row:last-child > span { border-bottom: 0; }
.comparison-row > span:first-child { color: var(--navy); font-weight: 760; }
.comparison-row .highlight { color: var(--ink); background: #eef6fc; }
.comparison-head > span { min-height: 62px; color: #fff !important; background: var(--navy) !important; font-weight: 760; }
.comparison-head .highlight { background: var(--orange) !important; }

.parts-section { background: var(--soft); }
.parts-layout { grid-template-columns: .85fr 1.15fr; }
.parts-benefits { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 34px; }
.parts-benefits span { padding: 17px; color: var(--muted); background: #fff; border-left: 3px solid var(--orange); font-size: .78rem; box-shadow: var(--shadow-sm); }
.parts-benefits strong { display: block; color: var(--ink); font-size: .9rem; }
.parts-list { border-top: 1px solid #cbd7df; }
.parts-list > div { display: grid; grid-template-columns: 42px 1fr 1.35fr; gap: 18px; align-items: center; min-height: 84px; border-bottom: 1px solid #cbd7df; }
.parts-list span { color: var(--orange); font-size: .78rem; font-weight: 800; }
.parts-list strong { color: var(--navy); font-size: .9rem; }
.parts-list small { color: var(--muted); font-size: .78rem; }

.cert-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 72px; align-items: center; }
.cert-grid { display: grid; grid-template-columns: 1.25fr .8fr .8fr; gap: 14px; align-items: stretch; }
.cert-grid button { overflow: hidden; min-height: 350px; padding: 0; background: #eef2f5; border: 1px solid var(--line); border-radius: 4px; cursor: zoom-in; }
.cert-grid img { height: 100%; object-fit: cover; }

.service-section { color: #fff; background: var(--navy-deep); }
.service-head { display: grid; grid-template-columns: 1fr .8fr; gap: 100px; align-items: end; margin-bottom: 60px; }
.service-head h2 { margin-bottom: 0; }
.service-head p { margin-bottom: 0; }
.service-steps { display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid rgba(255,255,255,.16); }
.service-steps article { min-height: 270px; padding: 26px; border-right: 1px solid rgba(255,255,255,.16); }
.service-steps article:last-child { border-right: 0; }
.service-steps span { display: block; margin-bottom: 48px; color: #6fb5e6; font-size: .76rem; font-weight: 800; }
.service-steps h3 { color: #fff; font-size: 1rem; }
.service-steps p { color: #aebfd0; font-size: .78rem; }
.service-team { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 52px; }
.service-team img { height: 330px; object-fit: cover; border-radius: var(--radius); }

.faq-layout { align-items: start; }
.faq-layout .section-heading { position: sticky; top: 130px; margin-bottom: 0; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 22px 4px; color: var(--navy); font-weight: 730; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span, .faq-list summary span::after { display: block; width: 15px; height: 1.5px; background: var(--orange); transition: transform .2s ease; }
.faq-list summary span::after { content: ""; transform: rotate(90deg); }
.faq-list details[open] summary span::after { transform: rotate(0deg); }
.faq-list details p { padding: 0 36px 24px 4px; margin: 0; font-size: .88rem; }

.contact-section { padding: 100px 0; color: #fff; background: linear-gradient(115deg, #0a3866, #0c5b98 62%, #0b4a7a); }
.contact-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 80px; align-items: center; }
.contact-copy h2 { color: #fff; }
.contact-copy > p { color: #d6e6f2; }
.contact-details { margin-top: 40px; border-top: 1px solid rgba(255,255,255,.25); }
.contact-details a, .contact-details > div { display: grid; gap: 2px; padding: 17px 0; border-bottom: 1px solid rgba(255,255,255,.25); }
.contact-details span { color: #9fc4e0; font-size: .72rem; text-transform: uppercase; }
.contact-details strong { color: #fff; font-size: .88rem; line-height: 1.5; }
.quote-form { padding: 36px; color: var(--ink); background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.form-head { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin-bottom: 25px; }
.form-head h3 { font-size: 1.45rem; }
.form-head p { font-size: .72rem; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.form-grid label, .consent { display: grid; gap: 6px; }
.form-grid label.full { grid-column: 1 / -1; }
.form-grid label > span { color: #354659; font-size: .75rem; font-weight: 700; }
input, select, textarea { width: 100%; color: var(--ink); background: #f8fafb; border: 1px solid #ccd7df; border-radius: 3px; outline: none; }
input, select { height: 47px; padding: 0 13px; }
textarea { min-height: 124px; padding: 12px 13px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--blue-bright); box-shadow: 0 0 0 3px rgba(22,117,189,.12); }
.consent { grid-template-columns: 18px 1fr; align-items: center; margin: 18px 0; color: var(--muted); font-size: .72rem; }
.consent input { width: 16px; height: 16px; }
.form-submit { width: 100%; border: 0; }
.form-status { min-height: 24px; margin: 10px 0 0; color: var(--success); font-size: .78rem; text-align: center; }

.site-footer { color: #becbd6; background: #061a2d; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 70px; padding: 72px 0 54px; }
.footer-brand p { max-width: 310px; margin-top: 22px; color: #8ca0b0; font-size: .82rem; }
.footer-logo { color: #fff; }
.footer-grid h3 { margin-bottom: 20px; color: #fff; font-size: .86rem; text-transform: uppercase; }
.footer-grid > div:not(.footer-brand) a { display: block; margin: 10px 0; color: #91a5b5; font-size: .8rem; }
.footer-grid a:hover { color: #fff; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding: 20px 0; border-top: 1px solid rgba(255,255,255,.1); font-size: .73rem; }

.whatsapp-float { position: fixed; right: 24px; bottom: 24px; z-index: 900; display: flex; align-items: center; gap: 8px; min-height: 50px; padding: 0 16px; color: #fff; background: #1fae66; border-radius: 26px; box-shadow: 0 12px 30px rgba(0,0,0,.22); font-size: .78rem; font-weight: 760; }
.whatsapp-float:hover { background: #168c51; }
.lightbox { position: fixed; width: min(92vw, 1100px); max-width: 1100px; max-height: 90vh; padding: 0; background: #06131f; border: 0; border-radius: 6px; box-shadow: 0 30px 80px rgba(0,0,0,.45); }
.lightbox::backdrop { background: rgba(2,12,22,.86); backdrop-filter: blur(5px); }
.lightbox img { max-height: 86vh; object-fit: contain; }
.lightbox-close { position: absolute; top: 12px; right: 12px; z-index: 1; display: grid; width: 42px; height: 42px; place-items: center; color: #fff; background: rgba(4,22,39,.8); border: 1px solid rgba(255,255,255,.3); border-radius: 4px; cursor: pointer; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 1080px) {
  .nav-menu { gap: 18px; }
  .nav-menu a { font-size: .8rem; }
  .split-layout, .structure-grid, .applications-layout, .parts-layout, .cert-layout, .faq-layout, .contact-layout { gap: 48px; }
  .process-flow { grid-template-columns: repeat(3, 1fr); row-gap: 42px; }
  .process-flow::before { display: none; }
  .service-steps { grid-template-columns: repeat(3, 1fr); }
  .service-steps article { border-bottom: 1px solid rgba(255,255,255,.16); }
  .service-steps article:nth-child(3) { border-right: 0; }
  .service-steps article:nth-child(n+4) { border-bottom: 0; }
}

@media (max-width: 860px) {
  .section { padding: 84px 0; }
  .topbar { display: none; }
  .main-nav { height: 70px; }
  .site-header.scrolled .main-nav { height: 64px; }
  .menu-toggle { display: inline-flex; }
  .nav-menu { position: fixed; top: 70px; right: 0; bottom: 0; width: min(86vw, 360px); display: flex; flex-direction: column; align-items: stretch; gap: 0; padding: 22px; color: var(--ink); background: #fff; box-shadow: -18px 20px 44px rgba(3,24,44,.2); transform: translateX(105%); transition: transform .25s ease; }
  .site-header.scrolled .nav-menu { top: 64px; }
  .nav-menu.open { transform: none; }
  .nav-menu > a:not(.nav-cta) { padding: 15px 4px; border-bottom: 1px solid var(--line); }
  .nav-menu > a:not(.nav-cta)::after { display: none; }
  .nav-cta { margin-top: 20px; text-align: center; }
  .hero { min-height: 82svh; padding-top: 130px; }
  .hero-shade { background: linear-gradient(90deg, rgba(2,18,34,.94), rgba(5,34,61,.63)); }
  .proof-grid { grid-template-columns: repeat(3, 1fr); }
  .proof-grid > div { min-height: 96px; border-bottom: 1px solid var(--line); }
  .proof-grid > div:nth-child(3) { border-right: 0; }
  .split-layout, .equipment-overview, .structure-grid, .applications-layout, .parts-layout, .cert-layout, .faq-layout, .contact-layout, .video-feature { grid-template-columns: 1fr; }
  .media-stack { min-height: 470px; }
  .equipment-overview { gap: 42px; }
  .advantage-grid { grid-template-columns: repeat(2, 1fr); }
  .case-gallery { grid-template-columns: repeat(2, 1fr); }
  .video-feature { gap: 34px; }
  .spec-footnotes { grid-template-columns: repeat(2, 1fr); }
  .spec-footnotes span:nth-child(2) { border-right: 0; }
  .spec-footnotes span:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .comparison-table { overflow-x: auto; }
  .comparison-row { min-width: 780px; }
  .service-head { grid-template-columns: 1fr; gap: 24px; }
  .faq-layout .section-heading { position: static; margin-bottom: 42px; }
  .footer-grid { grid-template-columns: repeat(3, 1fr); gap: 42px; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .section { padding: 68px 0; }
  h1 { font-size: 2.75rem; }
  h2 { font-size: 2rem; }
  .hero { min-height: 82svh; padding: 116px 0 58px; }
  .hero-media { background-position: 58% center; }
  .hero-lead { font-size: 1rem; }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .hero-note { gap: 18px; }
  .hero-note span { width: calc(50% - 9px); }
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .proof-grid > div { padding: 16px; border-right: 1px solid var(--line); }
  .proof-grid > div:nth-child(even) { border-right: 0; }
  .proof-grid > div:last-child { grid-column: 1 / -1; }
  .section-heading { margin-bottom: 40px; }
  .media-stack { min-height: 390px; }
  .media-main { width: 92%; height: 330px; }
  .media-inset { width: 54%; height: 170px; }
  .media-badge { bottom: 18px; left: 12px; }
  .check-grid, .material-grid, .parts-benefits, .form-grid { grid-template-columns: 1fr; }
  .product-photo img { min-height: 350px; }
  .process-flow { grid-template-columns: repeat(2, 1fr); margin-bottom: 76px; }
  .process-flow li { padding: 0 8px; }
  .advantage-grid { grid-template-columns: 1fr; }
  .advantage-grid article { min-height: 205px; }
  .case-gallery { grid-auto-rows: 180px; }
  .case-tile.case-large { grid-column: 1 / -1; grid-row: span 1; }
  .spec-footnotes { grid-template-columns: 1fr; }
  .spec-footnotes span { border-right: 0; border-bottom: 1px solid var(--line); }
  .parts-list > div { grid-template-columns: 34px 1fr; padding: 15px 0; }
  .parts-list small { grid-column: 2; }
  .cert-grid { grid-template-columns: repeat(3, 1fr); }
  .cert-grid button { min-height: 240px; }
  .service-steps { grid-template-columns: 1fr; }
  .service-steps article, .service-steps article:nth-child(3) { min-height: 210px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.16); }
  .service-steps article:last-child { border-bottom: 0; }
  .service-steps span { margin-bottom: 26px; }
  .service-team { grid-template-columns: 1fr; }
  .service-team img { height: 245px; }
  .quote-form { padding: 24px 18px; }
  .form-head { display: block; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { align-items: flex-start; gap: 16px; }
  .whatsapp-float { right: 14px; bottom: 14px; width: 50px; padding: 0; justify-content: center; }
  .whatsapp-float span { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}