:root {
  --navy-950: #071b3a;
  --navy-900: #0a2349;
  --navy-800: #103463;
  --blue-700: #135e9b;
  --blue-500: #2499d8;
  --sky-100: #e8f4fb;
  --gold-600: #a77a1c;
  --gold-500: #c5962f;
  --gold-200: #ead59b;
  --ink: #10213a;
  --muted: #5a6b82;
  --line: #dbe4ee;
  --soft: #f4f8fc;
  --white: #ffffff;
  --shadow: 0 18px 50px rgba(11, 38, 76, .11);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1240px;
  --header-height: 150px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, "Noto Sans TC", "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
h1, h2, h3, h4, p { margin-top: 0; }
h1, h2, h3, h4 { color: var(--navy-950); line-height: 1.12; letter-spacing: -.025em; }
h1 { font-size: clamp(2.65rem, 5vw, 5.25rem); }
h2 { font-size: clamp(2rem, 3.6vw, 3.65rem); }
h3 { font-size: clamp(1.15rem, 1.6vw, 1.45rem); }
p:last-child { margin-bottom: 0; }

.container { width: min(calc(100% - 44px), var(--container)); margin-inline: auto; }
.narrow { width: min(calc(100% - 44px), 900px); margin-inline: auto; }
.section { padding: clamp(72px, 8vw, 118px) 0; position: relative; }
.section.compact { padding: 58px 0; }
.section.soft { background: var(--soft); }
.section.navy { background: var(--navy-950); color: #dbe8f7; }
.section.navy h2, .section.navy h3 { color: var(--white); }
.section.navy .lead, .section.navy .muted { color: #c5d5e8; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }
.lead { color: var(--muted); font-size: clamp(1.05rem, 1.3vw, 1.24rem); line-height: 1.7; }

.skip-link {
  position: fixed;
  left: 18px;
  top: -80px;
  z-index: 9999;
  padding: 10px 16px;
  color: var(--white);
  background: var(--navy-950);
  border-radius: 8px;
}
.skip-link:focus { top: 12px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--blue-700);
  font-size: .79rem;
  font-weight: 800;
  letter-spacing: .16em;
  line-height: 1.3;
  text-transform: uppercase;
}
.eyebrow::before { width: 34px; height: 2px; background: var(--gold-500); content: ""; }
.section.navy .eyebrow { color: #74c5ef; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  border-bottom: 1px solid rgba(7, 27, 58, .1);
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(16px);
}
.header-bar { height: 28px; color: #b9cce2; background: var(--navy-950); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; }
.header-bar .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.header-bar a { color: var(--white); letter-spacing: .03em; text-transform: none; }
.nav-shell { display: flex; align-items: center; gap: 26px; height: 122px; }
.brand { display: flex; align-items: center; flex: 0 0 auto; }
.brand img { width: clamp(300px, 27vw, 360px); height: auto; }
.site-nav { display: flex; align-items: center; justify-content: flex-end; gap: 24px; margin-left: auto; color: var(--navy-900); font-size: .91rem; font-weight: 700; }
.site-nav > a, .nav-products > summary { position: relative; padding: 16px 0; cursor: pointer; list-style: none; }
.site-nav > a::after, .nav-products > summary::after {
  position: absolute;
  right: 0;
  bottom: 8px;
  left: 0;
  height: 2px;
  background: var(--gold-500);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .22s ease;
}
.site-nav > a:hover::after, .site-nav > a[aria-current="page"]::after, .nav-products:hover > summary::after, .nav-products[open] > summary::after { transform: scaleX(1); transform-origin: left; }
.nav-products { position: relative; }
.nav-products > summary::-webkit-details-marker { display: none; }
.nav-products > summary { display: flex; align-items: center; gap: 7px; }
.nav-products > summary::before { order: 2; width: 6px; height: 6px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; content: ""; transform: rotate(45deg) translateY(-2px); }
.nav-dropdown {
  position: absolute;
  top: 54px;
  right: -24px;
  width: 350px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--white);
  box-shadow: var(--shadow);
}
.nav-dropdown a { display: grid; grid-template-columns: 38px 1fr; gap: 3px 12px; padding: 12px; border-radius: 10px; }
.nav-dropdown a::before { grid-row: 1 / span 2; display: grid; place-items: center; width: 34px; height: 34px; color: var(--gold-600); background: #fff8e8; border-radius: 50%; content: attr(data-index); font-size: .72rem; font-weight: 800; }
.nav-dropdown a:hover { background: var(--soft); }
.nav-dropdown strong { color: var(--navy-900); font-size: .93rem; }
.nav-dropdown span { color: var(--muted); font-size: .78rem; font-weight: 500; }
.nav-cta { flex: 0 0 auto; padding: 11px 16px; color: var(--white); background: var(--navy-900); border-radius: 9px; font-size: .86rem; font-weight: 800; }
.mobile-toggle { display: none; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border: 1px solid var(--navy-900);
  border-radius: 9px;
  color: var(--white);
  background: var(--navy-900);
  font-weight: 800;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.button:hover { transform: translateY(-2px); background: var(--blue-700); border-color: var(--blue-700); }
.button.secondary { color: var(--navy-900); background: transparent; border-color: #bccbdd; }
.button.secondary:hover { background: var(--white); border-color: var(--navy-900); }
.section.navy .button.secondary { color: var(--white); border-color: rgba(255, 255, 255, .36); }
.section.navy .button.secondary:hover { color: var(--navy-950); }
.button.gold { color: var(--navy-950); background: var(--gold-500); border-color: var(--gold-500); }
.button.external::after { margin-left: 10px; content: "↗"; }
.button.text { min-height: auto; padding: 0; color: var(--blue-700); background: transparent; border: 0; }
.hero-actions, .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.home-hero {
  overflow: hidden;
  padding: clamp(58px, 7vw, 96px) 0 46px;
  background: radial-gradient(circle at 86% 0%, rgba(36, 153, 216, .14), transparent 28%), linear-gradient(180deg, #fff 0%, #f8fbfe 100%);
}
.hero-grid { display: grid; grid-template-columns: .85fr 1.15fr; align-items: center; gap: clamp(42px, 6vw, 86px); }
.hero-copy h1 { max-width: 780px; margin-bottom: 24px; }
.hero-copy .lead { max-width: 650px; }
.hero-kicker { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 28px; color: var(--navy-800); font-size: .87rem; font-weight: 800; }
.hero-kicker span { display: inline-flex; align-items: center; gap: 8px; }
.hero-kicker span::before { width: 6px; height: 6px; background: var(--gold-500); border-radius: 50%; content: ""; }
.hero-mosaic { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.hero-product { position: relative; min-height: 228px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); box-shadow: 0 14px 34px rgba(10, 35, 73, .09); transition: transform .25s ease, box-shadow .25s ease; }
.hero-product:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.hero-product .media { height: 140px; padding: 14px; background: linear-gradient(145deg, #f8fbfd, #eef5fa); }
.hero-product .media img { width: 100%; height: 100%; object-fit: contain; }
.hero-product .copy { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 18px; }
.hero-product .copy span { color: var(--gold-600); font-size: .68rem; font-weight: 900; letter-spacing: .1em; }
.hero-product h2 { margin: 3px 0 0; font-size: 1.08rem; }
.hero-product .arrow { color: var(--blue-700); font-size: 1.35rem; }
.hero-note { margin-top: 22px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: .91rem; }

.section-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 480px); align-items: end; gap: 50px; margin-bottom: 42px; }
.section-heading h2 { margin-bottom: 0; }
.solution-flow { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--white); box-shadow: var(--shadow); }
.flow-step { position: relative; min-height: 260px; padding: 34px 28px; border-right: 1px solid var(--line); }
.flow-step:last-child { border-right: 0; }
.flow-step::after { position: absolute; top: 50%; right: -13px; z-index: 2; display: grid; place-items: center; width: 26px; height: 26px; color: var(--navy-900); background: var(--gold-500); border-radius: 50%; content: "›"; font-weight: 900; transform: translateY(-50%); }
.flow-step:last-child::after { display: none; }
.flow-step .step-no { display: block; margin-bottom: 36px; color: var(--gold-600); font-size: .72rem; font-weight: 900; letter-spacing: .13em; }
.flow-step h3 { margin-bottom: 12px; }
.flow-step p { color: var(--muted); font-size: .94rem; }
.flow-step .mini-label { display: inline-flex; margin-top: 16px; padding: 5px 9px; color: var(--blue-700); background: var(--sky-100); border-radius: 6px; font-size: .72rem; font-weight: 800; }

.global-panel { display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: clamp(44px, 7vw, 100px); }
.globe-wrap { position: relative; min-height: 420px; display: grid; place-items: center; }
.globe { position: relative; width: min(390px, 84vw); aspect-ratio: 1; overflow: hidden; border: 1px solid rgba(116, 197, 239, .4); border-radius: 50%; background: linear-gradient(90deg, transparent 49.5%, rgba(116,197,239,.24) 50%, transparent 50.5%), linear-gradient(transparent 49.5%, rgba(116,197,239,.24) 50%, transparent 50.5%), radial-gradient(circle, rgba(36,153,216,.14), rgba(7,27,58,.12) 62%, transparent 63%); box-shadow: inset 0 0 80px rgba(36, 153, 216, .1), 0 0 80px rgba(36, 153, 216, .08); }
.globe::before, .globe::after { position: absolute; inset: 7% 31%; border: 1px solid rgba(116,197,239,.2); border-radius: 50%; content: ""; }
.globe::after { inset: 31% 7%; }
.taiwan-pin { position: absolute; top: 47%; left: 70%; z-index: 3; display: grid; place-items: center; width: 88px; height: 88px; padding: 8px; color: var(--navy-950); background: var(--gold-500); border: 9px solid rgba(197,150,47,.22); border-radius: 50%; background-clip: padding-box; font-size: .78rem; font-weight: 900; letter-spacing: .1em; text-align: center; }
.route-label { position: absolute; color: #8fb7d5; font-size: .71rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.route-label.na { top: 27%; left: 5%; }
.route-label.eu { top: 23%; right: 14%; }
.route-label.asia { right: 2%; bottom: 23%; }
.global-copy h2 { max-width: 720px; }
.global-points { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 30px; }
.global-point { padding: 19px 20px; border-left: 2px solid var(--gold-500); background: rgba(255,255,255,.04); }
.global-point strong { display: block; color: var(--white); }
.global-point span { color: #a8bdd5; font-size: .88rem; }

.application-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.application-card { position: relative; min-height: 360px; overflow: hidden; border-radius: var(--radius-md); background: var(--navy-950); }
.application-card img { width: 100%; height: 100%; object-fit: cover; opacity: .72; transition: transform .4s ease, opacity .4s ease; }
.application-card:hover img { transform: scale(1.04); opacity: .5; }
.application-card .overlay { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: flex-end; padding: 26px; background: linear-gradient(transparent 26%, rgba(7,27,58,.94)); }
.application-card h3 { margin-bottom: 8px; color: var(--white); }
.application-card p { color: #d2e1f0; font-size: .92rem; }
.application-card .index { margin-bottom: auto; color: var(--gold-200); font-size: .74rem; font-weight: 900; letter-spacing: .12em; }
.process-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; }
.process-item { position: relative; padding: 22px 26px 22px 0; border-top: 2px solid var(--line); }
.process-item::before { position: absolute; top: -7px; left: 0; width: 12px; height: 12px; background: var(--gold-500); border-radius: 50%; content: ""; }
.process-item span { display: block; margin-bottom: 22px; color: var(--gold-600); font-size: .72rem; font-weight: 900; letter-spacing: .1em; }
.process-item h3 { font-size: 1.03rem; }
.process-item p { color: var(--muted); font-size: .88rem; }

.cta-band { position: relative; overflow: hidden; padding: clamp(36px, 6vw, 64px); border-radius: var(--radius-lg); color: #dbe8f7; background: var(--navy-950); }
.cta-band::after { position: absolute; right: -90px; bottom: -160px; width: 430px; height: 430px; border: 1px solid rgba(116,197,239,.25); border-radius: 50%; content: ""; }
.cta-band h2 { max-width: 820px; margin-bottom: 18px; color: var(--white); }
.cta-band p { max-width: 760px; color: #bfd1e4; }
.cta-band .eyebrow { color: #7dccf1; }
.cta-band .button.secondary { color: var(--white); }

.page-hero { overflow: hidden; padding: clamp(62px, 8vw, 104px) 0; background: linear-gradient(180deg, #f8fbfe, #fff); }
.page-hero-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: clamp(44px, 7vw, 92px); }
.page-hero h1 { max-width: 760px; margin-bottom: 24px; font-size: clamp(2.6rem, 4.4vw, 4.8rem); }
.page-hero .lead { max-width: 700px; }
.hero-bullets { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 26px; }
.hero-bullets span { padding: 7px 11px; color: var(--navy-800); background: var(--sky-100); border-radius: 7px; font-size: .77rem; font-weight: 800; }
.image-stage { position: relative; min-height: 440px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--soft); box-shadow: var(--shadow); }
.image-stage > img { width: 100%; height: 100%; min-height: 440px; object-fit: cover; }
.image-stage.contain { display: grid; place-items: center; padding: 34px; }
.image-stage.contain > img { width: 100%; height: 100%; min-height: 360px; object-fit: contain; }
.image-stage .floating-label { position: absolute; right: 22px; bottom: 22px; max-width: 240px; padding: 16px 18px; color: var(--white); background: rgba(7,27,58,.9); border-radius: 12px; font-size: .82rem; }
.image-stack { display: grid; grid-template-columns: 1.15fr .85fr; grid-template-rows: 1fr 1fr; gap: 12px; min-height: 470px; }
.image-stack figure { margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 16px; background: var(--white); }
.image-stack figure:first-child { grid-row: 1 / span 2; }
.image-stack img { width: 100%; height: 100%; padding: 18px; object-fit: contain; }

.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.product-card { display: flex; flex-direction: column; min-height: 100%; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); transition: transform .25s ease, box-shadow .25s ease; }
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.product-card .product-media { height: 190px; padding: 20px; background: linear-gradient(145deg, #f9fbfd, #eef4f8); }
.product-card .product-media img { width: 100%; height: 100%; object-fit: contain; }
.product-card .product-copy { display: flex; flex: 1; flex-direction: column; padding: 22px; }
.product-card h3 { margin-bottom: 10px; }
.product-card p { color: var(--muted); font-size: .9rem; }
.product-card .product-link { display: inline-flex; align-items: center; gap: 8px; margin-top: auto; padding-top: 14px; color: var(--blue-700); font-size: .82rem; font-weight: 900; }
.product-card .product-link::after { content: "↗"; }
.product-card.local .product-link::after { content: "›"; }
.tag { display: inline-flex; width: fit-content; margin-bottom: 15px; padding: 5px 8px; color: var(--gold-600); background: #fff7e5; border-radius: 5px; font-size: .68rem; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }

.split { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: clamp(42px, 7vw, 92px); }
.feature-list { display: grid; gap: 12px; margin-top: 28px; }
.feature-item { position: relative; padding: 17px 20px 17px 46px; border: 1px solid var(--line); border-radius: 11px; background: var(--white); color: var(--navy-900); font-weight: 700; }
.feature-item::before { position: absolute; top: 21px; left: 20px; width: 10px; height: 10px; border: 2px solid var(--gold-500); border-radius: 50%; content: ""; }
.tech-flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.tech-step { position: relative; padding: 24px 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--white); }
.tech-step span { display: block; margin-bottom: 26px; color: var(--gold-600); font-size: .7rem; font-weight: 900; letter-spacing: .1em; }
.tech-step h3 { font-size: 1rem; }
.tech-step p { color: var(--muted); font-size: .85rem; }
.tech-step:not(:last-child)::after { position: absolute; top: 50%; right: -10px; z-index: 3; color: var(--gold-600); content: "›"; font-size: 1.35rem; font-weight: 900; transform: translateY(-50%); }

.data-table { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); }
.data-table table { width: 100%; border-collapse: collapse; min-width: 760px; }
.data-table th, .data-table td { padding: 18px 20px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.data-table th { color: var(--white); background: var(--navy-900); font-size: .8rem; letter-spacing: .06em; text-transform: uppercase; }
.data-table tr:last-child td { border-bottom: 0; }
.data-table td { color: var(--muted); font-size: .92rem; }
.data-table td strong { color: var(--navy-900); }
.solution-map { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.solution-card { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); }
.solution-card h3 { margin-bottom: 11px; }
.solution-card p { color: var(--muted); font-size: .92rem; }
.solution-card .uses { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 18px; }
.solution-card .uses span { padding: 5px 8px; color: var(--blue-700); background: var(--sky-100); border-radius: 5px; font-size: .72rem; font-weight: 800; }

.about-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 34px; }
.stat { padding: 24px; border: 1px solid var(--line); border-radius: 14px; background: var(--white); }
.stat strong { display: block; color: var(--navy-950); font-size: 1.25rem; }
.stat span { color: var(--muted); font-size: .84rem; }

.contact-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 30px; }
.contact-card { padding: clamp(30px, 5vw, 54px); border-radius: var(--radius-lg); color: #d8e6f5; background: var(--navy-950); }
.contact-card h2, .contact-card h3 { color: var(--white); }
.contact-card a { color: var(--gold-200); word-break: break-word; }
.contact-lines { display: grid; gap: 22px; margin-top: 34px; }
.contact-line { padding-top: 18px; border-top: 1px solid rgba(255,255,255,.14); }
.contact-line span { display: block; color: #8faac8; font-size: .72rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.contact-line strong { display: block; margin-top: 4px; color: var(--white); }
.rfq-form { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; padding: clamp(30px, 5vw, 54px); border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--white); box-shadow: var(--shadow); }
.field { display: grid; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field label { color: var(--navy-900); font-size: .8rem; font-weight: 800; }
.field input, .field select, .field textarea { width: 100%; padding: 13px 14px; color: var(--ink); background: #fbfdff; border: 1px solid #cbd7e4; border-radius: 9px; outline: none; }
.field textarea { min-height: 150px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--blue-500); box-shadow: 0 0 0 3px rgba(36,153,216,.12); }
.form-note { grid-column: 1 / -1; color: var(--muted); font-size: .82rem; }

.site-footer { color: #aebfd2; background: #06162f; }
.footer-main { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 44px; padding: 62px 0 42px; }
.footer-brand img { width: 300px; filter: brightness(0) invert(1); opacity: .92; }
.footer-brand p { max-width: 380px; margin-top: 20px; font-size: .9rem; }
.footer-column { display: grid; align-content: start; gap: 9px; }
.footer-column h3 { margin-bottom: 8px; color: var(--white); font-size: .9rem; letter-spacing: .04em; }
.footer-column a { font-size: .85rem; }
.footer-column a:hover { color: var(--white); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding: 20px 0 28px; border-top: 1px solid rgba(255,255,255,.12); font-size: .75rem; }

.reveal { opacity: 1; transform: none; }
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .55s ease, transform .55s ease; }
.js .reveal.visible { opacity: 1; transform: none; }

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

@media (max-width: 1120px) {
  :root { --header-height: 108px; }
  .header-bar { display: none; }
  .nav-shell { height: 108px; }
  .brand img { width: 300px; }
  .site-nav { gap: 16px; font-size: .85rem; }
  .nav-cta { display: none; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: 900px; }
  .hero-mosaic { max-width: 900px; }
  .product-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 860px) {
  :root { --header-height: 90px; }
  .container, .narrow { width: min(calc(100% - 30px), var(--container)); }
  .nav-shell { height: 90px; }
  .brand img { width: min(250px, 72vw); }
  .mobile-toggle { display: grid; place-items: center; width: 45px; height: 45px; margin-left: auto; border: 1px solid var(--line); border-radius: 10px; background: var(--white); }
  .mobile-toggle::before, .mobile-toggle::after, .mobile-toggle span { width: 20px; height: 2px; background: var(--navy-900); content: ""; transition: transform .2s ease, opacity .2s ease; }
  .mobile-toggle span { margin: -8px 0; }
  .mobile-toggle[aria-expanded="true"]::before { transform: translateY(2px) rotate(45deg); }
  .mobile-toggle[aria-expanded="true"] span { opacity: 0; }
  .mobile-toggle[aria-expanded="true"]::after { transform: translateY(-2px) rotate(-45deg); }
  .site-nav { position: fixed; inset: var(--header-height) 0 0; display: none; align-items: stretch; justify-content: flex-start; gap: 0; margin: 0; padding: 24px; background: var(--white); overflow-y: auto; }
  .site-nav.open { display: flex; flex-direction: column; }
  .site-nav > a, .nav-products > summary { padding: 15px 8px; border-bottom: 1px solid var(--line); font-size: 1.05rem; }
  .site-nav > a::after, .nav-products > summary::after { display: none; }
  .nav-products { position: static; }
  .nav-dropdown { position: static; width: auto; padding: 8px 0 8px 14px; border: 0; box-shadow: none; }
  .nav-dropdown a { padding: 11px; }
  .hero-grid, .page-hero-grid, .global-panel, .split, .contact-grid, .section-heading { grid-template-columns: 1fr; }
  .section-heading { align-items: start; gap: 18px; }
  .solution-flow { grid-template-columns: 1fr 1fr; }
  .flow-step:nth-child(2) { border-right: 0; }
  .flow-step:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .flow-step:nth-child(2)::after { display: none; }
  .application-grid, .solution-map { grid-template-columns: 1fr 1fr; }
  .process-row { grid-template-columns: 1fr 1fr; gap: 24px; }
  .product-grid { grid-template-columns: 1fr 1fr; }
  .tech-flow { grid-template-columns: 1fr 1fr; }
  .tech-step::after { display: none; }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .footer-main { grid-template-columns: 1.5fr 1fr 1fr; }
  .footer-column:last-child { grid-column: 1 / -1; }
}

@media (max-width: 580px) {
  .section { padding: 68px 0; }
  .home-hero { padding-top: 42px; }
  .hero-mosaic, .product-grid, .application-grid, .solution-map, .solution-flow, .tech-flow, .about-stats, .rfq-form { grid-template-columns: 1fr; }
  .hero-product { min-height: 214px; }
  .hero-product .media { height: 132px; }
  .flow-step { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .flow-step:last-child { border-bottom: 0; }
  .flow-step::after { display: none; }
  .flow-step .step-no { margin-bottom: 18px; }
  .global-points { grid-template-columns: 1fr; }
  .globe-wrap { min-height: 330px; }
  .application-card { min-height: 310px; }
  .process-row { grid-template-columns: 1fr; }
  .image-stage, .image-stage > img { min-height: 330px; }
  .image-stack { grid-template-columns: 1fr 1fr; grid-template-rows: 220px 150px; min-height: auto; }
  .image-stack figure:first-child { grid-column: 1 / -1; grid-row: auto; }
  .field { grid-column: 1 / -1; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 34px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-column:last-child { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }
}