:root {
  --ink: #111827;
  --ink-soft: #374151;
  --muted: #667085;
  --line: #dfe4ea;
  --surface: #f4f6f8;
  --white: #ffffff;
  --navy: #17233d;
  --navy-2: #243454;
  --red: #d92d20;
  --orange: #f16a45;
  --yellow: #fffcd5;
  --green: #1f9d6a;
  --shadow-sm: 0 8px 24px rgba(17, 24, 39, .08);
  --shadow-lg: 0 28px 70px rgba(17, 24, 39, .16);
  --radius: 6px;
  --container: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "DM Sans", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }

.section-shell { width: min(calc(100% - 48px), var(--container)); margin-inline: auto; }
.section-pad { padding-block: 116px; }
.eyebrow { margin: 0 0 15px; color: var(--red); font-size: 12px; font-weight: 700; line-height: 1.2; text-transform: uppercase; }
.section-heading { display: grid; grid-template-columns: 72px minmax(0, 1fr) 340px; align-items: end; gap: 28px; margin-bottom: 60px; }
.section-index { align-self: start; padding-top: 10px; color: var(--red); font-family: "Barlow Condensed", sans-serif; font-size: 18px; font-weight: 700; border-top: 2px solid var(--red); }
.section-heading h2 { margin: 0; font-family: "Barlow Condensed", sans-serif; font-size: 58px; font-weight: 600; line-height: .98; text-transform: uppercase; }
.heading-aside { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.7; }
.section-heading-light h2, .section-heading-light .heading-aside { color: var(--white); }
.section-heading-light .heading-aside { color: #bac4d4; }

.site-header { position: fixed; z-index: 1000; inset: 0 0 auto; height: 82px; color: var(--ink); background: rgba(255,255,255,.88); border-bottom: 1px solid rgba(255,255,255,.42); backdrop-filter: blur(12px); transition: height .25s ease, box-shadow .25s ease, background-color .25s ease; }
.site-header.scrolled { height: 72px; background: rgba(255,255,255,.98); box-shadow: 0 8px 30px rgba(17,24,39,.09); border-color: var(--line); }
.header-inner { width: min(calc(100% - 40px), 1380px); height: 100%; margin: auto; display: flex; align-items: center; gap: 40px; }
.brand { display: inline-flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand img { width: 46px; height: auto; }
.brand-copy { display: flex; flex-direction: column; line-height: 1; }
.brand-copy strong { font-family: "Barlow Condensed", sans-serif; font-size: 24px; font-weight: 700; }
.brand-copy small { margin-top: 4px; color: var(--muted); font-size: 9px; font-weight: 700; text-transform: uppercase; }
.main-nav { display: flex; align-items: center; gap: 30px; margin-left: auto; }
.main-nav a { position: relative; padding: 10px 0; font-size: 13px; font-weight: 700; text-transform: uppercase; }
.main-nav a::after { content: ""; position: absolute; right: 0; bottom: 4px; left: 0; height: 2px; background: var(--red); transform: scaleX(0); transform-origin: right; transition: transform .25s ease; }
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); transform-origin: left; }
.header-cta { display: inline-flex; align-items: center; gap: 12px; padding: 12px 16px; color: var(--white); background: var(--navy); border-radius: 3px; font-size: 13px; font-weight: 700; }
.header-cta:hover { background: var(--red); }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 0; border: 0; background: transparent; }
.menu-toggle span { display: block; width: 22px; height: 2px; margin: 6px auto; background: currentColor; transition: transform .2s ease; }

.hero { min-height: calc(100vh - 18px); padding-top: 118px; padding-bottom: 34px; display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 70px; }
.hero-copy { padding-bottom: 12px; }
.hero h1 { max-width: 700px; margin: 0; font-family: "Barlow Condensed", sans-serif; font-size: 70px; font-weight: 600; line-height: .92; text-transform: uppercase; }
.hero h1 em { color: var(--red); font-style: normal; }
.hero-lede { max-width: 640px; margin: 20px 0 0; color: var(--ink-soft); font-size: 16px; line-height: 1.65; }
.hero-actions { display: flex; align-items: center; gap: 30px; margin-top: 26px; }
.button { min-height: 52px; padding: 14px 22px; display: inline-flex; align-items: center; justify-content: center; gap: 18px; border: 0; border-radius: 3px; font-size: 14px; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--white); background: linear-gradient(110deg, var(--red), var(--orange)); box-shadow: 0 12px 30px rgba(217,45,32,.2); }
.button-primary:hover { box-shadow: 0 16px 34px rgba(217,45,32,.3); }
.button-light { color: var(--navy); background: var(--white); }
.text-link { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-size: 14px; font-weight: 700; border-bottom: 1px solid currentColor; }
.text-link span { color: var(--red); }
.hero-facts { display: grid; grid-template-columns: repeat(3, 1fr); max-width: 650px; margin: 30px 0 0; padding: 20px 0 0; border-top: 1px solid var(--line); }
.hero-facts div + div { padding-left: 24px; border-left: 1px solid var(--line); }
.hero-facts dt { font-family: "Barlow Condensed", sans-serif; font-size: 28px; font-weight: 700; line-height: 1; }
.hero-facts dd { margin: 8px 0 0; color: var(--muted); font-size: 12px; line-height: 1.4; }
.hero-visual { position: relative; min-width: 0; }
.hero-grid-label { position: absolute; z-index: 2; top: 18px; left: 20px; color: var(--navy); font-size: 10px; font-weight: 700; }
.hero-media { position: relative; overflow: hidden; min-height: 520px; display: flex; align-items: flex-end; justify-content: center; background: var(--yellow); border: 1px solid #ece8b9; box-shadow: var(--shadow-lg); }
.hero-media::before { content: ""; position: absolute; inset: 0; opacity: .22; background-image: linear-gradient(rgba(23,35,61,.16) 1px, transparent 1px), linear-gradient(90deg, rgba(23,35,61,.16) 1px, transparent 1px); background-size: 64px 64px; }
.hero-media img { position: relative; z-index: 1; width: 100%; height: 100%; object-fit: cover; object-position: center; mix-blend-mode: multiply; }
.hero-note { position: absolute; z-index: 3; right: -18px; bottom: 24px; width: 250px; padding: 16px 18px; display: flex; gap: 10px; color: var(--white); background: var(--navy); box-shadow: var(--shadow-sm); font-size: 11px; line-height: 1.5; }
.status-dot { width: 8px; height: 8px; margin-top: 4px; flex: 0 0 8px; background: #5fe1a3; border-radius: 50%; box-shadow: 0 0 0 4px rgba(95,225,163,.13); }

.trust-strip { color: var(--white); background: var(--navy); }
.trust-inner { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.trust-label { font-size: 12px; font-weight: 700; text-transform: uppercase; }
.trust-items { display: flex; align-items: center; gap: 34px; color: #c5cfdd; font-size: 12px; }
.trust-items span::before { content: "+"; margin-right: 8px; color: var(--orange); font-weight: 700; }

.company-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; align-items: center; }
.company-story .lead { margin-top: 0; color: var(--ink); font-size: 22px; line-height: 1.55; }
.company-story p { color: var(--ink-soft); }
.company-story .text-link { margin-top: 12px; }
.company-images { position: relative; padding: 0 0 80px 100px; }
.company-images figure { margin: 0; }
.company-images img { width: 100%; height: 100%; object-fit: cover; }
.company-images figcaption { padding-top: 10px; color: var(--muted); font-size: 11px; font-weight: 700; text-transform: uppercase; }
.image-large { height: 430px; box-shadow: var(--shadow-lg); }
.image-small { position: absolute; bottom: 0; left: 0; width: 270px; height: 220px; padding: 10px; background: var(--white); box-shadow: var(--shadow-lg); }
.proof-row { margin-top: 90px; padding: 34px 0; display: grid; grid-template-columns: repeat(3, .7fr) 1.5fr; gap: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.proof-number { padding: 8px 30px; display: flex; flex-direction: column; border-right: 1px solid var(--line); }
.proof-number:first-child { padding-left: 0; }
.proof-number strong { color: var(--navy); font-family: "Barlow Condensed", sans-serif; font-size: 50px; line-height: 1; }
.proof-number span { margin-top: 8px; color: var(--muted); font-size: 12px; }
.proof-note { padding: 5px 0 5px 42px; color: var(--ink-soft); font-size: 14px; }
.certificates { margin-top: 92px; display: grid; grid-template-columns: 300px 1fr; gap: 70px; align-items: center; }
.certificates-intro h3 { margin: 0 0 18px; font-family: "Barlow Condensed", sans-serif; font-size: 42px; font-weight: 600; line-height: 1; text-transform: uppercase; }
.certificates-intro p:last-child { color: var(--muted); font-size: 14px; }
.certificate-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.certificate-list figure { margin: 0; min-width: 0; }
.certificate-list img { width: 100%; aspect-ratio: 3 / 4; object-fit: contain; padding: 12px; background: var(--surface); border: 1px solid var(--line); filter: saturate(.86); transition: transform .2s ease, box-shadow .2s ease; }
.certificate-list figure:hover img { transform: translateY(-4px); box-shadow: var(--shadow-sm); }
.certificate-list figcaption { margin-top: 10px; color: var(--muted); font-size: 10px; font-weight: 700; text-transform: uppercase; }

.product-band { color: var(--white); background: var(--navy); }
.product-overview-grid { display: grid; grid-template-columns: 1.25fr .75fr .75fr; gap: 22px; }
.product-card { position: relative; min-height: 420px; padding: 32px; display: flex; flex-direction: column; justify-content: flex-end; background: var(--navy-2); border: 1px solid rgba(255,255,255,.1); box-shadow: 0 20px 50px rgba(0,0,0,.12); }
.product-card-main { padding: 0; background: var(--white); color: var(--ink); }
.product-card-main img { width: 100%; height: 255px; object-fit: contain; padding: 20px; background: #f6f7f8; }
.product-card-main > div { padding: 28px 32px 34px; }
.card-kicker { color: var(--orange); font-size: 10px; font-weight: 700; text-transform: uppercase; }
.product-card h3 { margin: 12px 0 12px; font-family: "Barlow Condensed", sans-serif; font-size: 34px; font-weight: 600; line-height: 1; text-transform: uppercase; }
.product-card p { margin: 0; color: #c3ccda; font-size: 14px; }
.product-card-main p { color: var(--muted); }
.card-number { position: absolute; top: 24px; right: 28px; color: rgba(255,255,255,.12); font-family: "Barlow Condensed", sans-serif; font-size: 110px; font-weight: 700; line-height: 1; }

.process-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.process-diagram { min-width: 0; }
.diagram-vessel { position: relative; height: 510px; overflow: hidden; background: var(--surface); border: 1px solid var(--line); border-radius: 120px 120px 12px 12px; box-shadow: inset 0 0 0 14px #fff, var(--shadow-sm); }
.diagram-vessel::after { content: ""; position: absolute; left: 50%; bottom: 72px; width: 5px; height: 210px; background: var(--navy); transform: translateX(-50%); }
.diagram-lid { position: absolute; z-index: 4; top: 6px; left: 50%; width: 70%; height: 34px; background: var(--navy); border-radius: 20px; transform: translateX(-50%); box-shadow: 0 18px 0 #d9dfe6; }
.diagram-material { position: absolute; bottom: 0; width: 58%; height: 72%; border-radius: 50% 50% 0 0; opacity: .85; filter: blur(.1px); }
.material-a { left: -2%; background: repeating-radial-gradient(circle at 40% 40%, #f1cf84 0 4px, #eaae54 5px 8px); clip-path: polygon(0 30%, 35% 5%, 75% 28%, 100% 0, 100% 100%, 0 100%); animation: pulse-powder 4s ease-in-out infinite; }
.material-b { right: -2%; background: repeating-radial-gradient(circle at 60% 50%, #bbc8d8 0 4px, #8798ae 5px 8px); clip-path: polygon(0 0, 30% 28%, 70% 4%, 100% 30%, 100% 100%, 0 100%); animation: pulse-powder 4s ease-in-out 1s infinite; }
.diagram-impeller { position: absolute; z-index: 3; bottom: 110px; left: 50%; width: 66%; height: 10px; background: var(--red); border-radius: 8px; transform: translateX(-50%) rotate(-12deg); box-shadow: 0 50px 0 var(--orange); }
.diagram-impeller::after, .diagram-impeller::before { content: ""; position: absolute; width: 46%; height: 10px; background: inherit; border-radius: inherit; }
.diagram-impeller::before { left: 0; transform: rotate(36deg); transform-origin: left; }
.diagram-impeller::after { right: 0; transform: rotate(-36deg); transform-origin: right; }
.diagram-label { position: absolute; z-index: 5; padding: 7px 10px; color: var(--white); background: var(--navy); font-size: 10px; font-weight: 700; text-transform: uppercase; }
.label-in { top: 52px; right: 20px; }
.label-assist { top: 52px; left: 20px; }
.label-temp { top: 45%; right: 12px; }
.label-out { right: 18px; bottom: 28px; background: var(--red); }
.diagram-caption { margin: 16px 0 0; color: var(--muted); font-size: 12px; text-align: center; }
.process-steps { display: flex; flex-direction: column; }
.process-steps article { padding: 25px 0; display: grid; grid-template-columns: 56px 1fr; gap: 25px; border-bottom: 1px solid var(--line); }
.process-steps article:first-child { border-top: 1px solid var(--line); }
.process-steps article > span { color: var(--red); font-family: "Barlow Condensed", sans-serif; font-size: 22px; font-weight: 700; }
.process-steps h3 { margin: 0 0 5px; font-size: 18px; }
.process-steps p { margin: 0; color: var(--muted); font-size: 14px; }
.feature-grid { margin-top: 92px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.feature { min-height: 270px; padding: 30px; background: var(--white); }
.feature-icon { width: 42px; height: 42px; display: grid; place-items: center; color: var(--white); background: var(--navy); border-radius: 50%; font-size: 11px; font-weight: 700; }
.feature h3 { margin: 52px 0 10px; font-family: "Barlow Condensed", sans-serif; font-size: 28px; font-weight: 600; line-height: 1; text-transform: uppercase; }
.feature p { margin: 0; color: var(--muted); font-size: 13px; }

.applications { border-top: 1px solid var(--line); }
.application-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; align-items: start; }
.industry-list { border-top: 1px solid var(--line); }
.industry-list a { min-height: 86px; display: grid; grid-template-columns: 48px 1fr auto 28px; align-items: center; gap: 12px; border-bottom: 1px solid var(--line); transition: padding .2s ease, background-color .2s ease; }
.industry-list a:hover { padding-inline: 14px; background: var(--surface); }
.industry-list span { color: var(--red); font-family: "Barlow Condensed", sans-serif; font-weight: 700; }
.industry-list strong { font-size: 15px; }
.industry-list small { color: var(--muted); font-size: 11px; text-align: right; }
.industry-list i { color: var(--red); font-style: normal; }
.materials-panel { color: var(--white); background: var(--navy); box-shadow: var(--shadow-lg); }
.material-hero { min-height: 460px; padding: 46px; display: grid; grid-template-columns: 220px 1fr; gap: 40px; align-items: center; }
.material-hero h3 { margin: 0 0 18px; font-family: "Barlow Condensed", sans-serif; font-size: 44px; font-weight: 600; line-height: 1; text-transform: uppercase; }
.material-hero p:not(.eyebrow) { color: #bdc7d6; font-size: 14px; }
.material-hero .button { margin-top: 16px; }
.powder-canvas { position: relative; height: 300px; overflow: hidden; background: #eef1f4; border-radius: 50% 50% 8px 8px; box-shadow: inset 0 0 50px rgba(17,24,39,.25); }
.powder { position: absolute; border-radius: 50%; filter: drop-shadow(0 5px 6px rgba(0,0,0,.15)); }
.powder-1 { width: 260px; height: 110px; left: -30px; bottom: 0; background: radial-gradient(circle at 40% 20%, #fff 0 3%, #e8e4d8 4% 8%, transparent 9%) 0 0 / 20px 20px, #ded7c5; }
.powder-2 { width: 200px; height: 100px; right: -35px; bottom: 48px; background: radial-gradient(circle at 50% 20%, #fff 0 3%, #c1cad2 4% 8%, transparent 9%) 0 0 / 17px 17px, #9aa9b6; }
.powder-3 { width: 180px; height: 90px; left: -20px; bottom: 85px; background: radial-gradient(circle at 50% 20%, #edc988 0 3%, #c99b54 4% 8%, transparent 9%) 0 0 / 18px 18px, #b78032; }
.powder-4 { width: 140px; height: 72px; right: -5px; bottom: 0; background: radial-gradient(circle at 40% 30%, #959aa2 0 3%, #4b515c 4% 8%, transparent 9%) 0 0 / 16px 16px, #333944; }
.material-tags { padding: 24px 30px 30px; display: flex; flex-wrap: wrap; gap: 8px; border-top: 1px solid rgba(255,255,255,.12); }
.material-tags span { padding: 7px 10px; color: #c9d1df; border: 1px solid rgba(255,255,255,.15); font-size: 10px; }

.cases { background: var(--surface); }
.case-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 24px; }
.case-feature { position: relative; min-height: 690px; overflow: hidden; background: var(--white); box-shadow: var(--shadow-sm); }
.case-feature > img { width: 100%; height: 100%; object-fit: cover; }
.case-overlay { position: absolute; right: 0; bottom: 0; left: 0; padding: 34px; color: var(--white); background: linear-gradient(180deg, transparent, rgba(17,24,39,.95)); }
.case-overlay h3 { max-width: 700px; margin: 10px 0; font-family: "Barlow Condensed", sans-serif; font-size: 36px; font-weight: 600; line-height: 1; text-transform: uppercase; }
.case-overlay p { max-width: 660px; margin: 0; color: #d4d9e1; font-size: 13px; }
.case-side { background: var(--white); box-shadow: var(--shadow-sm); }
.video-frame { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: #0c1220; }
.video-frame video { width: 100%; height: 100%; object-fit: cover; }
.video-watermark { position: absolute; top: 16px; right: 16px; width: 88px; padding: 7px; background: rgba(255,255,255,.78); pointer-events: none; }
.play-label { position: absolute; left: 16px; bottom: 16px; padding: 8px 11px; color: var(--white); background: rgba(17,24,39,.82); font-size: 10px; font-weight: 700; text-transform: uppercase; pointer-events: none; }
.case-copy { padding: 38px; }
.case-copy h3 { margin: 10px 0 12px; font-family: "Barlow Condensed", sans-serif; font-size: 34px; font-weight: 600; line-height: 1; text-transform: uppercase; }
.case-copy p { color: var(--muted); font-size: 14px; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); box-shadow: var(--shadow-sm); }
table { width: 100%; min-width: 970px; border-collapse: collapse; background: var(--white); font-size: 13px; }
caption { padding: 18px 20px; color: var(--white); background: var(--navy); text-align: left; font-weight: 700; }
th, td { padding: 14px 16px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: center; vertical-align: middle; }
thead th { color: var(--ink-soft); background: var(--surface); font-size: 11px; text-transform: uppercase; }
tbody th { color: var(--red); font-weight: 700; }
tbody tr:nth-child(even) { background: #fafbfc; }
.unit-note { padding: 14px 0; color: var(--muted); font-size: 11px; }
.large-unit-grid { margin-top: 62px; padding: 42px; display: grid; grid-template-columns: .85fr 1.15fr; gap: 70px; color: var(--white); background: var(--navy); }
.large-unit-grid h3 { margin: 0 0 16px; font-family: "Barlow Condensed", sans-serif; font-size: 38px; font-weight: 600; line-height: 1; text-transform: uppercase; }
.large-unit-grid p { color: #c1cad8; font-size: 14px; }
.large-unit-values { display: grid; grid-template-columns: repeat(3, 1fr); align-items: center; }
.large-unit-values div { padding: 16px 22px; display: flex; flex-direction: column; border-left: 1px solid rgba(255,255,255,.16); }
.large-unit-values strong { color: var(--orange); font-family: "Barlow Condensed", sans-serif; font-size: 30px; line-height: 1; }
.large-unit-values span { margin-top: 10px; color: #c1cad8; font-size: 10px; }

.comparison { border-top: 1px solid var(--line); }
.compare-wrap { border-top: 4px solid var(--navy); }
.compare-head, .compare-row { display: grid; grid-template-columns: 170px 1fr 1fr; }
.compare-head > div, .compare-row > * { padding: 22px 24px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.compare-head h3 { margin: 10px 0 0; font-family: "Barlow Condensed", sans-serif; font-size: 30px; font-weight: 600; line-height: 1; text-transform: uppercase; }
.compare-label { display: inline-block; padding: 5px 8px; color: var(--white); font-size: 9px; font-weight: 700; }
.compare-label.gl { background: var(--red); }
.compare-label.crgx { background: var(--navy); }
.compare-row strong { color: var(--navy); font-size: 12px; text-transform: uppercase; }
.compare-row div { color: var(--muted); font-size: 13px; }
.compare-row div:nth-child(2) { background: #fffaf8; }
.compare-row div:nth-child(3) { background: #f6f8fb; }
.compare-note { margin: 18px 0 0; color: var(--muted); font-size: 11px; }

.parts { color: var(--white); background: var(--navy); }
.parts-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 76px; align-items: start; }
.parts-media { position: sticky; top: 110px; }
.parts-media img { width: 100%; height: 280px; object-fit: contain; padding: 24px; background: var(--white); box-shadow: 0 24px 60px rgba(0,0,0,.25); }
.parts-caption { padding: 16px 0; display: flex; justify-content: space-between; gap: 20px; border-bottom: 1px solid rgba(255,255,255,.16); }
.parts-caption span { font-size: 12px; font-weight: 700; text-transform: uppercase; }
.parts-caption small { color: #aeb9c8; font-size: 10px; text-align: right; }
.parts-list article { padding: 24px 0; display: grid; grid-template-columns: 54px 1fr; gap: 20px; border-bottom: 1px solid rgba(255,255,255,.14); }
.parts-list article > span { color: var(--orange); font-family: "Barlow Condensed", sans-serif; font-size: 22px; font-weight: 700; }
.parts-list h3 { margin: 0 0 6px; font-size: 17px; }
.parts-list p { margin: 0; color: #b8c3d2; font-size: 13px; }
.parts-promise { margin-top: 34px; padding: 26px; color: var(--ink); background: var(--white); }
.parts-promise strong { color: var(--red); font-size: 12px; text-transform: uppercase; }
.parts-promise p { margin: 8px 0 0; color: var(--ink-soft); }

.faq-list { max-width: 1000px; margin-left: auto; border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 24px 50px 24px 0; font-size: 16px; font-weight: 700; list-style: none; cursor: pointer; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 0; top: 20px; width: 28px; height: 28px; display: grid; place-items: center; color: var(--white); background: var(--navy); border-radius: 50%; font-size: 17px; }
.faq-list details[open] summary::after { content: "-"; background: var(--red); }
.faq-list details p { max-width: 800px; margin: -4px 0 24px; color: var(--muted); font-size: 14px; }

.service { color: var(--white); background: var(--navy); }
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: rgba(255,255,255,.16); }
.service-step { min-height: 310px; padding: 30px; background: var(--navy); }
.service-step > span { color: var(--orange); font-family: "Barlow Condensed", sans-serif; font-size: 22px; font-weight: 700; }
.service-step h3 { margin: 92px 0 14px; font-family: "Barlow Condensed", sans-serif; font-size: 29px; font-weight: 600; line-height: 1; text-transform: uppercase; }
.service-step p { margin: 0; color: #b9c4d3; font-size: 13px; }

.contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; align-items: start; }
.contact-copy h2 { margin: 0 0 22px; font-family: "Barlow Condensed", sans-serif; font-size: 58px; font-weight: 600; line-height: .98; text-transform: uppercase; }
.contact-copy > p:not(.eyebrow) { color: var(--muted); }
.contact-details { margin-top: 40px; display: flex; flex-direction: column; gap: 16px; }
.contact-details > * { display: flex; align-items: center; gap: 14px; font-weight: 600; }
.contact-details small { display: block; color: var(--muted); font-size: 10px; font-weight: 700; text-transform: uppercase; }
.contact-details > span:last-child > span:last-child { font-size: 0; }
.contact-details > span:last-child > span:last-child::after { content: "Room 801, Building 2, Shanghai Zhicheng, No. 8666 Hunan Highway, Pudong, Shanghai"; display: block; font-size: 15px; line-height: 1.45; }
.contact-icon { width: 40px; height: 40px; display: grid; place-items: center; flex: 0 0 40px; color: var(--white); background: var(--navy); border-radius: 50%; font-size: 10px; font-weight: 700; }
.contact-links { margin-top: 36px; padding-top: 24px; display: flex; flex-direction: column; gap: 12px; border-top: 1px solid var(--line); }
.contact-links a { font-size: 13px; font-weight: 700; }
.contact-form { padding: 42px; background: var(--surface); border-top: 4px solid var(--red); box-shadow: var(--shadow-lg); }
.form-title h3 { margin: 0 0 26px; font-family: "Barlow Condensed", sans-serif; font-size: 38px; font-weight: 600; text-transform: uppercase; }
.contact-form label { display: block; margin-bottom: 18px; color: var(--ink-soft); font-size: 11px; font-weight: 700; text-transform: uppercase; }
.contact-form input, .contact-form textarea { width: 100%; margin-top: 7px; padding: 13px 14px; color: var(--ink); background: var(--white); border: 1px solid #cfd6de; border-radius: 2px; font-size: 14px; text-transform: none; outline: 0; transition: border-color .2s ease, box-shadow .2s ease; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--navy); box-shadow: 0 0 0 3px rgba(23,35,61,.08); }
.contact-form textarea { min-height: 130px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.check-label { display: flex !important; align-items: flex-start; gap: 9px; color: var(--muted) !important; font-size: 10px !important; font-weight: 500 !important; text-transform: none !important; }
.check-label input { width: 16px; height: 16px; margin: 1px 0 0; }
.contact-form .button { width: 100%; }
.form-status { min-height: 24px; margin: 14px 0 0; color: var(--green); font-size: 12px; font-weight: 600; }

.site-footer { padding-top: 78px; color: var(--white); background: #0b1120; }
.footer-grid { display: grid; grid-template-columns: 1.7fr repeat(3, 1fr); gap: 70px; padding-bottom: 64px; }
.footer-brand .brand-copy small { color: #8c99ab; }
.footer-brand p { max-width: 330px; margin-top: 26px; color: #8793a4; font-size: 13px; }
.footer-grid h3 { margin: 4px 0 22px; color: #9aa6b8; font-size: 11px; text-transform: uppercase; }
.footer-grid > div:not(.footer-brand) { display: flex; flex-direction: column; gap: 11px; }
.footer-grid a, .footer-grid span { color: #c1c8d2; font-size: 12px; }
.footer-grid a:hover { color: var(--orange); }
.footer-bottom { min-height: 66px; display: flex; align-items: center; justify-content: space-between; gap: 20px; color: #778295; border-top: 1px solid rgba(255,255,255,.1); font-size: 10px; }

.whatsapp-float { position: fixed; z-index: 999; right: 22px; bottom: 22px; width: 54px; height: 54px; display: grid; place-items: center; color: var(--white); background: #25d366; border-radius: 50%; box-shadow: 0 14px 30px rgba(17,24,39,.22); transition: transform .2s ease; }
.whatsapp-float:hover { transform: translateY(-3px); }
.wa-mark { font-size: 13px; font-weight: 800; }
.wa-tooltip { position: absolute; right: 64px; padding: 7px 10px; color: var(--white); background: var(--ink); border-radius: 2px; font-size: 10px; white-space: nowrap; opacity: 0; transform: translateX(5px); pointer-events: none; transition: opacity .2s ease, transform .2s ease; }
.whatsapp-float:hover .wa-tooltip { opacity: 1; transform: translateX(0); }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-delay { transition-delay: .12s; }
.reveal-delay-2 { transition-delay: .22s; }

@keyframes pulse-powder { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }

@media (max-width: 1100px) {
  .main-nav { gap: 20px; }
  .main-nav a { font-size: 11px; }
  .hero { gap: 42px; }
  .hero h1 { font-size: 68px; }
  .hero-media { min-height: 510px; }
  .section-heading { grid-template-columns: 55px 1fr 290px; }
  .section-heading h2 { font-size: 50px; }
  .company-grid, .process-layout, .parts-layout { gap: 50px; }
  .product-overview-grid { grid-template-columns: 1fr 1fr; }
  .product-card-main { grid-column: span 2; }
  .application-layout { grid-template-columns: 1fr; }
  .materials-panel { max-width: 850px; margin-left: auto; }
  .case-grid { grid-template-columns: 1fr; }
  .case-feature { min-height: 600px; }
  .contact-grid { gap: 55px; }
}

@media (max-width: 860px) {
  .section-shell { width: min(calc(100% - 36px), var(--container)); }
  .section-pad { padding-block: 88px; }
  .site-header { height: 72px; }
  .header-inner { width: calc(100% - 32px); }
  .main-nav { position: fixed; inset: 72px 0 auto; padding: 32px 18px 42px; display: flex; flex-direction: column; align-items: stretch; gap: 0; color: var(--white); background: var(--navy); box-shadow: var(--shadow-lg); transform: translateY(-130%); transition: transform .3s ease; }
  .menu-open .main-nav { transform: translateY(0); }
  .main-nav a { padding: 14px 8px; border-bottom: 1px solid rgba(255,255,255,.14); font-size: 13px; }
  .header-cta { margin-left: auto; }
  .menu-toggle { display: block; }
  .menu-open .menu-toggle span:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-open .menu-toggle span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .hero { min-height: auto; padding-top: 122px; padding-bottom: 70px; grid-template-columns: 1fr; }
  .hero-copy { max-width: 720px; }
  .hero h1 { font-size: 70px; }
  .hero-visual { max-width: 690px; }
  .hero-note { right: 18px; }
  .trust-inner { min-height: 100px; align-items: flex-start; flex-direction: column; justify-content: center; gap: 10px; }
  .trust-items { flex-wrap: wrap; gap: 8px 24px; }
  .section-heading { grid-template-columns: 45px 1fr; align-items: start; margin-bottom: 48px; }
  .section-heading .heading-aside { grid-column: 2; max-width: 580px; }
  .company-grid { grid-template-columns: 1fr; }
  .company-images { max-width: 680px; }
  .proof-row { grid-template-columns: repeat(3, 1fr); }
  .proof-note { grid-column: span 3; margin-top: 24px; padding: 24px 0 0; border-top: 1px solid var(--line); }
  .certificates { grid-template-columns: 1fr; gap: 35px; }
  .certificate-list { max-width: 700px; }
  .process-layout { grid-template-columns: 1fr; }
  .process-diagram { max-width: 650px; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .material-hero { grid-template-columns: 200px 1fr; }
  .large-unit-grid { grid-template-columns: 1fr; gap: 28px; }
  .compare-head, .compare-row { grid-template-columns: 130px 1fr 1fr; }
  .parts-layout { grid-template-columns: 1fr; }
  .parts-media { position: static; max-width: 700px; }
  .service-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-copy { max-width: 650px; }
  .footer-grid { grid-template-columns: 1.6fr 1fr 1fr; }
  .footer-grid > div:last-child { grid-column: 2 / 4; }
}

@media (max-width: 600px) {
  .section-shell { width: min(calc(100% - 28px), var(--container)); }
  .section-pad { padding-block: 72px; }
  .brand-copy small { display: none; }
  .header-cta { display: none; }
  .header-inner { gap: 10px; }
  .menu-toggle { margin-left: auto; }
  .hero { width: 100%; padding: 112px 14px 56px; gap: 46px; }
  .hero h1 { font-size: 51px; }
  .hero-lede { font-size: 16px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 20px; }
  .hero-facts { grid-template-columns: 1fr; gap: 0; }
  .hero-facts div { padding: 15px 0; display: grid; grid-template-columns: 130px 1fr; align-items: center; border-bottom: 1px solid var(--line); }
  .hero-facts div + div { padding-left: 0; border-left: 0; }
  .hero-facts dd { margin: 0; }
  .hero-media { min-height: 430px; }
  .hero-media img { object-position: center; }
  .hero-grid-label { top: 12px; left: 12px; }
  .hero-note { right: 10px; bottom: 12px; width: 220px; }
  .trust-strip { overflow: hidden; }
  .trust-items { display: grid; grid-template-columns: 1fr 1fr; }
  .section-heading { grid-template-columns: 32px 1fr; gap: 15px; }
  .section-heading h2 { font-size: 40px; }
  .section-heading .heading-aside { grid-column: 1 / -1; padding-left: 47px; }
  .company-story .lead { font-size: 19px; }
  .company-images { padding: 0 0 70px 34px; }
  .image-large { height: 320px; }
  .image-small { width: 180px; height: 150px; }
  .proof-row { grid-template-columns: 1fr; }
  .proof-number, .proof-number:first-child { padding: 18px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .proof-note { grid-column: auto; }
  .certificate-list { grid-template-columns: 1fr 1fr; }
  .product-overview-grid { grid-template-columns: 1fr; }
  .product-card-main { grid-column: auto; }
  .product-card { min-height: 330px; }
  .diagram-vessel { height: 420px; border-radius: 80px 80px 10px 10px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature { min-height: 235px; }
  .industry-list a { min-height: 98px; grid-template-columns: 36px 1fr 20px; }
  .industry-list small { grid-column: 2; grid-row: 2; text-align: left; margin-top: -20px; }
  .industry-list i { grid-column: 3; grid-row: 1 / 3; }
  .material-hero { padding: 28px; grid-template-columns: 1fr; }
  .powder-canvas { height: 230px; }
  .case-feature { min-height: 530px; }
  .case-overlay { padding: 24px; }
  .case-overlay h3 { font-size: 30px; }
  .case-copy { padding: 28px; }
  .large-unit-grid { padding: 28px; }
  .large-unit-values { grid-template-columns: 1fr; }
  .large-unit-values div { border-left: 0; border-top: 1px solid rgba(255,255,255,.16); }
  .compare-wrap { overflow-x: auto; }
  .compare-head, .compare-row { min-width: 740px; }
  .service-grid { grid-template-columns: 1fr; }
  .service-step { min-height: 240px; }
  .service-step h3 { margin-top: 50px; }
  .contact-copy h2 { font-size: 46px; }
  .contact-form { padding: 28px 20px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 44px 24px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-grid > div:last-child { grid-column: 1 / -1; }
  .footer-bottom { padding: 20px 0; align-items: flex-start; flex-direction: column; }
  .whatsapp-float { right: 14px; bottom: 14px; }
}

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