:root {
  --bg: #020817;
  --bg-2: #06122b;
  --panel: rgba(8, 24, 53, 0.72);
  --panel-solid: #071a37;
  --line: rgba(103, 180, 255, 0.24);
  --line-strong: rgba(57, 203, 255, 0.55);
  --text: #edf7ff;
  --muted: #9cb1c8;
  --cyan: #16d8ff;
  --blue: #3579ff;
  --violet: #7667ff;
  --teal: #13d9cc;
  --shadow: 0 28px 80px rgba(0, 10, 35, 0.42);
  --radius: 26px;
  --container: min(1280px, calc(100% - 40px));
}

@media (min-width: 1500px) {
  :root { --container: min(1360px, calc(100% - 64px)); }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 94px; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 8%, rgba(42, 102, 255, 0.18), transparent 34%),
    radial-gradient(circle at 86% 18%, rgba(17, 214, 255, 0.13), transparent 28%),
    linear-gradient(180deg, #020817 0%, #031024 46%, #020817 100%);
  font-family: Inter, "Noto Sans TC", "Microsoft JhengHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .22;
  background-image:
    linear-gradient(rgba(90, 160, 255, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(90, 160, 255, .08) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, black, transparent 84%);
  z-index: -2;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }

.container { width: var(--container); margin-inline: auto; }
.section { padding: 110px 0; position: relative; }
.section-grid::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(67, 145, 255, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(67, 145, 255, .055) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent);
  z-index: -1;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 9999;
  background: white;
  color: #001329;
  padding: 10px 14px;
  border-radius: 10px;
  transition: top .2s ease;
}
.skip-link:focus { top: 14px; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  padding: 15px 0;
  transition: background .25s ease, box-shadow .25s ease, padding .25s ease;
}

.site-header.scrolled {
  padding: 9px 0;
  background: rgba(2, 8, 23, .82);
  border-bottom: 1px solid rgba(103, 180, 255, .14);
  backdrop-filter: blur(18px);
  box-shadow: 0 12px 35px rgba(0, 6, 24, .3);
}
.nav-wrap {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 9px 13px 9px 17px;
  border: 1px solid rgba(106, 183, 255, .22);
  border-radius: 21px;
  background: rgba(4, 15, 36, .58);
  backdrop-filter: blur(18px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.035);
}
.brand { display: flex; align-items: center; gap: 13px; min-width: 244px; }
.brand img { width: 104px; height: 48px; object-fit: contain; }
.brand-copy { display: grid; line-height: 1.3; }
.brand-copy strong { font-size: 14px; letter-spacing: .04em; }
.brand-copy small { color: var(--muted); font-size: 11px; }
.site-nav { display: flex; align-items: center; gap: 26px; }
.site-nav > a { color: #c9d8e8; font-size: 14px; white-space: nowrap; transition: color .2s ease; }
.site-nav > a:hover, .site-nav > a.active { color: var(--cyan); }
.site-nav .nav-cta {
  color: white;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 18px;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--cyan), var(--blue) 62%, var(--violet));
  box-shadow: 0 10px 28px rgba(32, 142, 255, .28);
}
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); background: rgba(9,29,62,.82); border-radius: 13px; padding: 11px; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; background: white; transition: transform .2s, opacity .2s; }

.hero { min-height: auto; padding: 150px 0 70px; position: relative; isolation: isolate; overflow: clip; }
.hero-grid { display: grid; grid-template-columns: minmax(0,1.02fr) minmax(0,.98fr); align-items: center; gap: clamp(34px, 4vw, 62px); }
.hero-copy { min-width: 0; }
.hero-glow { position: absolute; filter: blur(20px); border-radius: 50%; z-index: -2; }
.hero-glow-a { width: 520px; height: 520px; background: rgba(46, 91, 255, .15); left: -250px; top: 180px; }
.hero-glow-b { width: 420px; height: 420px; background: rgba(7, 219, 255, .13); right: -140px; top: 180px; }
.eyebrow { margin: 0 0 18px; color: #85dfff; font-size: 12px; font-weight: 700; letter-spacing: .17em; text-transform: uppercase; display: flex; align-items: center; gap: 10px; }
.eyebrow span { width: 30px; height: 2px; background: linear-gradient(90deg, var(--cyan), transparent); }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 24px; font-size: clamp(45px, 5.3vw, 74px); line-height: 1.08; letter-spacing: -.045em; }
h1 span { display: inline-block; margin-top: 12px; font-size: .63em; font-weight: 650; background: linear-gradient(90deg, #e9f8ff 5%, #7cecff 37%, #7e83ff 86%); -webkit-background-clip: text; color: transparent; }
.hero-lead { max-width: 650px; color: #b2c5d8; font-size: 18px; line-height: 1.85; }
.hero-feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 34px 0; }
.mini-feature { min-height: 83px; display: flex; align-items: center; gap: 14px; padding: 16px; background: linear-gradient(145deg, rgba(13,39,82,.78), rgba(5,20,48,.48)); border: 1px solid var(--line); border-radius: 17px; box-shadow: inset 0 1px 0 rgba(255,255,255,.035); }
.mini-feature strong, .mini-feature small { display: block; }
.mini-feature strong { font-size: 14px; }
.mini-feature small { color: var(--muted); font-size: 12px; }
.mini-icon { flex: 0 0 auto; display: grid; place-items: center; width: 43px; height: 43px; border-radius: 13px; color: #77e7ff; border: 1px solid rgba(91,210,255,.3); background: radial-gradient(circle at 30% 20%, rgba(69,206,255,.22), rgba(28,65,136,.18)); }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; padding: 13px 23px; border-radius: 13px; font-weight: 700; font-size: 14px; border: 1px solid transparent; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: white; background: linear-gradient(120deg, #1cd9ff, #2d75ff 58%, #795cff); box-shadow: 0 14px 35px rgba(36, 126, 255, .3); }
.btn-ghost { color: #e9f7ff; background: rgba(7,23,54,.55); border-color: rgba(104,187,255,.32); }
.btn-ghost:hover { border-color: var(--cyan); }
.hero-visual { position: relative; }
.visual-frame { position: relative; min-height: 560px; overflow: hidden; border-radius: 32px; border: 1px solid rgba(101, 187, 255, .35); background: #04142f; box-shadow: var(--shadow), inset 0 0 0 1px rgba(255,255,255,.02); }
.visual-frame::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(1,8,24,.86)); pointer-events: none; }
.visual-frame img { width: 100%; height: 100%; min-height: 560px; object-fit: cover; object-position: center center; filter: saturate(1.15) contrast(1.05); }
.visual-scan { position: absolute; z-index: 2; left: 0; right: 0; height: 110px; top: -120px; background: linear-gradient(180deg, transparent, rgba(93,224,255,.09), rgba(93,224,255,.2), transparent); animation: scan 6s linear infinite; pointer-events: none; }
@keyframes scan { to { transform: translateY(780px); } }
.visual-label { position: absolute; z-index: 3; min-width: 118px; padding: 10px 13px; border-radius: 11px; border: 1px solid rgba(99,220,255,.38); background: rgba(2,16,40,.74); backdrop-filter: blur(10px); box-shadow: 0 10px 30px rgba(0,0,0,.25); }
.visual-label small, .visual-label strong { display: block; }
.visual-label small { color: #65ddff; font-size: 10px; text-transform: uppercase; letter-spacing: .08em; }
.visual-label strong { font-size: 13px; }
.label-a { left: 7%; bottom: 22%; }
.label-b { right: 6%; top: 16%; }
.label-c { right: 7%; bottom: 12%; }

.label-d { left: 6%; top: 14%; }
.label-e { left: 10%; bottom: 40%; }
.visual-metrics { position: absolute; z-index: 5; left: 22px; right: 22px; bottom: 20px; display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.visual-metrics div { padding: 14px; border-radius: 14px; border: 1px solid rgba(108,187,255,.2); background: rgba(5,20,47,.78); backdrop-filter: blur(12px); }
.visual-metrics strong, .visual-metrics span { display: block; }
.visual-metrics strong { color: white; font-size: 12px; }
.visual-metrics span { color: var(--muted); font-size: 11px; }
.trust-strip { width: 100%; margin-top: 48px; min-height: 74px; display: flex; align-items: center; justify-content: space-around; gap: 20px; padding: 18px 28px; border-top: 1px solid rgba(86,167,255,.17); border-bottom: 1px solid rgba(86,167,255,.17); color: #a9bfd6; font-size: 13px; letter-spacing: .05em; }
.trust-strip span { white-space: nowrap; }
.trust-strip i { width: 4px; height: 4px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }

.split-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; align-items: start; }
.section-heading h2, .section-top h2, .capability-intro h2, .architecture-copy h2, .cooperation-copy h2, .contact-info h2 { margin-bottom: 18px; font-size: clamp(34px, 4vw, 56px); line-height: 1.2; letter-spacing: -.03em; }
.section-heading em { font-style: normal; color: #65dfff; }
.about { padding-top: 88px; }
.about-copy > p { color: #b1c3d5; font-size: 18px; }
.about-points { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 28px; }
.about-points span { position: relative; padding: 13px 14px 13px 38px; border: 1px solid var(--line); border-radius: 13px; color: #dceeff; background: rgba(7,27,60,.45); }
.about-points span::before { content: "✓"; position: absolute; left: 14px; color: var(--cyan); }
.about-layout { grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr); gap: 56px; align-items: start; }
.about-left, .about-right { min-width: 0; }
.about-intro { margin-top: 18px; max-width: 620px; color: #b1c3d5; font-size: 20px; line-height: 1.8; }
.about-overview { margin-top: 36px; padding: 26px; border-radius: 24px; border: 1px solid rgba(97, 182, 255, .18); background: linear-gradient(180deg, rgba(7, 25, 58, .58), rgba(2, 13, 33, .5)); box-shadow: inset 0 1px 0 rgba(255,255,255,.03); }
.overview-head, .vision-card > p:first-child { margin: 0 0 18px; }
.overview-head p, .vision-card > p:first-child { margin: 0; color: #72dfff; letter-spacing: .15em; font-size: 12px; }
.overview-head h3, .vision-card h3 { margin: 8px 0 0; font-size: 28px; letter-spacing: -.02em; }
.overview-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.overview-card { padding: 24px 22px; border-radius: 18px; border: 1px solid rgba(97, 182, 255, .14); background: rgba(255,255,255,.03); }
.overview-card h4 { margin: 0 0 10px; font-size: 16px; color: #c5d9eb; font-weight: 600; }
.overview-card strong { display: block; font-size: 34px; line-height: 1.2; color: #45d9ff; letter-spacing: -.03em; }
.vision-card { margin-top: 24px; padding: 30px 28px; border-radius: 24px; background: linear-gradient(135deg, rgba(31, 106, 255, .92), rgba(8, 171, 223, .92)); color: white; box-shadow: 0 20px 44px rgba(15, 70, 144, .28); }
.vision-card h3 { color: white; }
.vision-card p:last-child { margin: 14px 0 0; font-size: 19px; line-height: 1.8; color: rgba(255,255,255,.96); }
.about-right .about-copy > p { margin-top: 0; }
.about-org-chart { margin-top: 36px; padding: 24px; border-radius: 24px; border: 1px solid rgba(97, 182, 255, .20); background: linear-gradient(180deg, rgba(7, 25, 58, .68), rgba(2, 13, 33, .68)); box-shadow: inset 0 1px 0 rgba(255,255,255,.03), 0 16px 40px rgba(0, 0, 0, .18); }
.org-chart-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.org-chart-head p { margin: 0; color: #72dfff; letter-spacing: .15em; font-size: 12px; }
.org-chart-head h3 { margin: 0; font-size: 28px; letter-spacing: -.02em; }
.org-chart-frame { overflow: hidden; border-radius: 20px; border: 1px solid rgba(97, 182, 255, .22); background: rgba(5, 18, 44, .8); }
.org-chart-frame img { display: block; width: 100%; height: auto; }

.section-top { display: flex; justify-content: space-between; gap: 30px; align-items: end; margin-bottom: 44px; }
.section-top h2 { margin-bottom: 8px; }
.section-top > div > p:last-child { margin-bottom: 0; color: var(--muted); }
.text-link { color: #8eeaff; font-weight: 700; font-size: 14px; }
.product-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 15px; }
.product-card { min-width: 0; overflow: hidden; border-radius: 21px; border: 1px solid rgba(102,181,255,.26); background: linear-gradient(160deg, rgba(12,37,77,.84), rgba(4,17,39,.87)); box-shadow: 0 20px 42px rgba(0,8,30,.24); transition: transform .28s ease, border-color .28s ease, box-shadow .28s ease; }
.product-card:hover { transform: translateY(-8px); border-color: rgba(69,220,255,.55); box-shadow: 0 24px 60px rgba(0,15,45,.42), 0 0 30px rgba(24,183,255,.08); }
.product-image { aspect-ratio: 1.35; display: grid; place-items: center; overflow: hidden; background: radial-gradient(circle at 50% 35%, rgba(43,105,218,.3), transparent 62%); border-bottom: 1px solid rgba(92,166,255,.15); }
.product-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.product-card:hover .product-image img { transform: scale(1.045); }
.product-card-body { padding: 20px 18px 22px; position: relative; }
.product-no { position: absolute; right: 16px; top: 20px; color: rgba(123,215,255,.58); font-size: 11px; letter-spacing: .15em; }
.product-card h3 { margin-bottom: 13px; padding-right: 30px; font-size: 19px; }
ul { margin: 0; padding-left: 18px; color: var(--muted); }
.product-card li { margin: 6px 0; font-size: 12px; }
.product-card li::marker { color: var(--cyan); }

.capabilities { padding-top: 25px; padding-bottom: 70px; }
.capability-shell { display: grid; grid-template-columns: .28fr .72fr; gap: 40px; align-items: center; padding: 36px 38px; border-radius: 24px; border: 1px solid var(--line); background: linear-gradient(130deg, rgba(10,31,67,.9), rgba(4,15,35,.75)); box-shadow: inset 0 1px 0 rgba(255,255,255,.03); }
.capability-intro h2 { margin: 0; font-size: 30px; }
.capability-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.capability-grid article { display: flex; gap: 12px; align-items: flex-start; }
.cap-icon { flex: 0 0 auto; width: 42px; height: 42px; display: grid; place-items: center; color: var(--cyan); border: 1px solid rgba(97,219,255,.26); border-radius: 13px; background: rgba(20,63,129,.3); }
.capability-grid h3 { margin-bottom: 5px; font-size: 14px; }
.capability-grid p { margin-bottom: 0; color: var(--muted); font-size: 11px; line-height: 1.6; }

.architecture { padding-top: 95px; }
.architecture-grid { display: grid; grid-template-columns: .37fr .63fr; gap: 70px; align-items: center; }
.architecture-copy p:not(.eyebrow) { color: var(--muted); font-size: 17px; }
.architecture-copy .btn { margin-top: 15px; }
.architecture-flow { position: relative; display: grid; gap: 12px; }
.architecture-flow::before { content: ""; position: absolute; left: 33px; top: 68px; bottom: 68px; width: 1px; background: linear-gradient(var(--cyan), rgba(62,124,255,.18)); }
.architecture-flow article { position: relative; display: grid; grid-template-columns: 68px 1fr; gap: 18px; align-items: center; min-height: 112px; padding: 18px 24px; border: 1px solid rgba(99,184,255,.24); border-radius: 18px; background: linear-gradient(110deg, rgba(9,31,69,.89), rgba(6,20,45,.54)); overflow: hidden; }
.architecture-flow article::after { content: ""; position: absolute; right: -60px; width: 220px; height: 220px; border-radius: 50%; background: radial-gradient(circle, rgba(42,155,255,.12), transparent 65%); }
.architecture-flow article > span { position: relative; z-index: 2; width: 48px; height: 48px; display: grid; place-items: center; border-radius: 14px; color: white; border: 1px solid rgba(92,211,255,.43); background: linear-gradient(135deg, rgba(29,211,255,.2), rgba(62,79,229,.25)); box-shadow: 0 0 22px rgba(26,170,255,.12); }
.architecture-flow small { color: #64dfff; letter-spacing: .11em; font-size: 10px; }
.architecture-flow h3 { margin: 1px 0 4px; font-size: 19px; }
.architecture-flow p { margin: 0; color: var(--muted); font-size: 13px; }

.application-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 19px; }
.application-card { position: relative; min-height: 340px; overflow: hidden; border-radius: 23px; border: 1px solid rgba(101,183,255,.25); background: #07172f; }
.application-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(2,8,23,.04) 20%, rgba(2,9,25,.92) 78%); }
.application-card img { width: 100%; height: 100%; min-height: 340px; object-fit: cover; transition: transform .45s ease, filter .45s ease; }
.application-card:hover img { transform: scale(1.065); filter: saturate(1.15); }
.application-overlay { position: absolute; z-index: 2; inset: auto 0 0; padding: 30px; }
.application-overlay span { color: var(--cyan); font-size: 11px; letter-spacing: .14em; }
.application-overlay h3 { margin: 4px 0 8px; font-size: 24px; }
.application-overlay p { margin: 0; color: #aebfd1; font-size: 13px; }

.process-line { display: grid; grid-template-columns: repeat(6,1fr); gap: 12px; position: relative; }
.process-line::before { content: ""; position: absolute; top: 57px; left: 7%; right: 7%; height: 1px; background: linear-gradient(90deg, transparent, rgba(36,212,255,.65), rgba(105,98,255,.65), transparent); }
.process-card { position: relative; z-index: 2; min-height: 260px; padding: 24px 18px; text-align: center; border: 1px solid rgba(99,185,255,.23); border-radius: 19px; background: rgba(7,25,56,.68); }
.process-card > span { position: absolute; top: 13px; right: 14px; color: #7895b6; font-size: 11px; }
.process-icon { width: 62px; height: 62px; margin: 3px auto 20px; display: grid; place-items: center; color: #75e8ff; font-size: 25px; border-radius: 20px; border: 1px solid rgba(96,219,255,.36); background: radial-gradient(circle at 30% 20%, rgba(40,202,255,.22), rgba(43,70,153,.24)); box-shadow: 0 0 25px rgba(37,171,255,.1); }
.process-card h3 { font-size: 17px; margin-bottom: 9px; }
.process-card p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.65; }

.cooperation-grid { display: grid; grid-template-columns: .38fr .62fr; gap: 70px; align-items: center; }
.cooperation-copy > p:last-child { color: var(--muted); font-size: 17px; }
.cooperation-cards { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; }
.cooperation-cards article { position: relative; min-height: 190px; padding: 27px; border-radius: 20px; border: 1px solid rgba(99,186,255,.24); background: linear-gradient(140deg, rgba(11,35,76,.84), rgba(4,17,39,.63)); overflow: hidden; transition: transform .25s ease, border-color .25s ease; }
.cooperation-cards article:hover { transform: translateY(-5px); border-color: rgba(48,211,255,.5); }
.cooperation-cards article::after { content: ""; position: absolute; width: 130px; height: 130px; border-radius: 50%; right: -45px; bottom: -55px; background: radial-gradient(circle, rgba(72,124,255,.18), transparent 67%); }
.cooperation-cards span { color: var(--cyan); font-size: 11px; letter-spacing: .15em; }
.cooperation-cards h3 { margin: 9px 0; font-size: 21px; }
.cooperation-cards p { margin: 0; color: var(--muted); font-size: 13px; }

.contact { padding-bottom: 90px; }
.contact-shell { display: grid; grid-template-columns: .46fr .54fr; gap: 60px; padding: 52px; border-radius: 30px; border: 1px solid rgba(101,184,255,.3); background:
  radial-gradient(circle at 10% 80%, rgba(38,120,255,.19), transparent 35%),
  linear-gradient(135deg, rgba(9,32,72,.96), rgba(4,16,38,.94));
  box-shadow: var(--shadow);
}
.contact-info > p:not(.eyebrow) { color: var(--muted); }
.company-card { margin-top: 30px; padding: 24px; border-radius: 19px; border: 1px solid rgba(100,186,255,.2); background: rgba(3,15,36,.56); }
.company-name strong, .company-name span, .company-name small { display: block; }
.company-name strong { font-size: 19px; }
.company-name span { color: #7de9ff; font-weight: 700; }
.company-name small { color: var(--muted); margin-top: 3px; }
.company-card dl { margin: 20px 0 0; display: grid; gap: 13px; }
.company-card dl div { display: grid; grid-template-columns: 54px 1fr; gap: 12px; }
.company-card dt { color: #65dfff; font-size: 12px; }
.company-card dd { margin: 0; color: #d7e6f3; font-size: 13px; }
.company-card a:hover { color: var(--cyan); }
.line-id { color: #8defff; font-weight: 700; letter-spacing: .02em; }
.line-contact-card { margin-top: 20px; display: grid; grid-template-columns: 132px minmax(0,1fr); gap: 18px; align-items: center; padding: 16px; border-radius: 16px; border: 1px solid rgba(86, 220, 150, .25); background: linear-gradient(135deg, rgba(4, 39, 41, .40), rgba(4, 17, 39, .58)); }
.line-qr-wrap { padding: 7px; border-radius: 13px; background: #fff; box-shadow: 0 10px 28px rgba(0,0,0,.20); }
.line-qr-wrap img { display: block; width: 100%; aspect-ratio: 1; object-fit: cover; }
.line-contact-copy small, .line-contact-copy strong, .line-contact-copy span { display: block; }
.line-contact-copy small { margin-bottom: 5px; color: #72e8c9; font-size: 10px; letter-spacing: .14em; }
.line-contact-copy strong { color: #f2fbff; font-size: 16px; }
.line-contact-copy span { margin-top: 7px; color: #72e8c9; font-weight: 700; font-size: 14px; }
.line-contact-copy p { margin: 7px 0 0; color: #8fa8bf; font-size: 12px; line-height: 1.6; }
.contact-form { display: grid; gap: 15px; padding: 28px; border-radius: 22px; background: rgba(2,13,33,.62); border: 1px solid rgba(98,177,255,.2); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
.contact-form label { display: grid; gap: 7px; color: #d7e7f5; font-size: 12px; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; color: white; border: 1px solid rgba(101,181,255,.25); background: rgba(8,27,59,.78); border-radius: 12px; outline: none; padding: 13px 14px; transition: border-color .2s ease, box-shadow .2s ease; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(25,216,255,.1); }
.contact-form textarea { resize: vertical; min-height: 128px; }
.contact-form select option { background: #071832; }
.submit-btn { width: 100%; border: none; }
.form-note { margin: -2px 0 0; color: #8097af; font-size: 11px; }
.form-status { min-height: 20px; color: #72e8c9; font-size: 12px; }

.site-footer { padding: 70px 0 28px; border-top: 1px solid rgba(97,175,255,.16); background: #010713; }
.footer-grid { display: grid; grid-template-columns: 1.6fr .75fr .75fr 1fr; gap: 46px; }
.footer-brand img { width: 170px; height: 82px; object-fit: contain; margin-bottom: 12px; }
.footer-brand strong, .footer-brand span { display: block; }
.footer-brand span { color: #79dfff; font-size: 13px; }
.footer-brand p { max-width: 430px; margin: 15px 0 0; color: var(--muted); font-size: 13px; }
.footer-links { display: grid; align-content: start; gap: 8px; color: var(--muted); font-size: 12px; }
.footer-links strong { color: white; font-size: 14px; margin-bottom: 7px; }
.footer-links a:hover { color: var(--cyan); }
.footer-bottom { margin-top: 42px; padding-top: 22px; display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid rgba(95,168,255,.12); color: #71879e; font-size: 11px; }
.footer-bottom a:hover { color: var(--cyan); }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .72s ease, transform .72s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1140px) {
  :root { --container: min(100% - 32px, 1080px); }
  .brand-copy { display: none; }
  .brand { min-width: auto; }
  .site-nav { gap: 18px; }
  .site-nav > a { font-size: 13px; }
  .hero-grid { gap: 35px; }
  .visual-frame, .visual-frame img { min-height: 510px; }
  .product-grid { grid-template-columns: repeat(3,1fr); }
  .capability-shell { grid-template-columns: 1fr; }
  .process-line { grid-template-columns: repeat(3,1fr); }
  .process-line::before { display: none; }
}

@media (max-width: 900px) {
  .section { padding: 86px 0; }
  .menu-toggle { display: block; }
  .site-nav {
    position: absolute;
    left: 16px;
    right: 16px;
    top: calc(100% + 9px);
    display: grid;
    gap: 4px;
    padding: 14px;
    border: 1px solid rgba(101,181,255,.24);
    border-radius: 18px;
    background: rgba(2,11,28,.96);
    backdrop-filter: blur(20px);
    box-shadow: 0 24px 60px rgba(0,0,0,.45);
    opacity: 0;
    transform: translateY(-8px) scale(.98);
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
  }
  .site-nav.open { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
  .site-nav > a { padding: 11px 12px; border-radius: 10px; }
  .site-nav > a:hover { background: rgba(25,85,155,.25); }
  .site-nav .nav-cta { justify-content: center; margin-top: 5px; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .hero { padding-top: 135px; }
  .hero-grid, .split-layout, .architecture-grid, .cooperation-grid, .contact-shell { grid-template-columns: 1fr; }
  .hero-copy { max-width: 760px; }
  .hero-visual { max-width: 720px; width: 100%; margin-inline: auto; }
  .visual-frame, .visual-frame img { min-height: 620px; }
  .trust-strip { flex-wrap: wrap; justify-content: center; }
  .split-layout, .architecture-grid, .cooperation-grid { gap: 38px; }
  .product-grid { grid-template-columns: repeat(2,1fr); }
  .capability-grid { grid-template-columns: repeat(2,1fr); }
  .application-grid { grid-template-columns: 1fr; }
  .application-card { min-height: 390px; }
  .application-card img { min-height: 390px; }
  .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; }
  .footer-grid > :last-child { grid-column: 2 / 4; }
}

@media (max-width: 620px) {
  :root { --container: calc(100% - 24px); --radius: 20px; }
  html { scroll-padding-top: 82px; }
  .site-header { padding: 8px 0; }
  .nav-wrap { min-height: 58px; padding: 6px 8px 6px 11px; border-radius: 17px; }
  .brand img { width: 94px; height: 43px; }
  .hero { padding-top: 112px; }
  h1 { font-size: 42px; }
  h1 span { font-size: .57em; line-height: 1.3; }
  .hero-lead { font-size: 15px; }
  .hero-feature-grid { grid-template-columns: 1fr; }
  .hero-actions .btn { flex: 1 1 100%; }
  .visual-frame, .visual-frame img { min-height: 460px; }
  .visual-frame { border-radius: 22px; }
  .visual-metrics { grid-template-columns: 1fr; left: 12px; right: 12px; bottom: 12px; }
  .visual-metrics div { padding: 10px 12px; }
  .visual-label { transform: scale(.9); transform-origin: center; }
  .label-b { right: 2%; }
  .label-c { display: none; }
  .trust-strip { margin-top: 36px; font-size: 11px; padding-inline: 8px; gap: 12px; }
  .trust-strip i { display: none; }
  .section { padding: 70px 0; }
  .section-heading h2, .section-top h2, .capability-intro h2, .architecture-copy h2, .cooperation-copy h2, .contact-info h2 { font-size: 34px; }
  .about-points, .product-grid, .capability-grid, .cooperation-cards, .form-row { grid-template-columns: 1fr; }
  .section-top { align-items: flex-start; flex-direction: column; margin-bottom: 30px; }
  .product-image { aspect-ratio: 1.75; }
  .capability-shell { padding: 25px 20px; }
  .capability-grid { gap: 22px; }
  .architecture-flow article { grid-template-columns: 54px 1fr; padding: 16px; }
  .architecture-flow::before { left: 27px; }
  .application-card, .application-card img { min-height: 330px; }
  .process-line { grid-template-columns: 1fr; }
  .process-card { min-height: auto; text-align: left; padding-left: 88px; }
  .process-icon { position: absolute; left: 17px; top: 28px; margin: 0; }
  .contact-shell { padding: 25px 18px; gap: 34px; }
  .contact-form { padding: 20px 16px; }
  .company-card { padding: 18px; }
  .company-card dl div { grid-template-columns: 45px 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-grid > :last-child { grid-column: auto; }
  .footer-bottom { flex-direction: column; }
}

@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; }
}

/* Native Product Showcase / PROVO product catalog */
.valve-showcase {
  padding-top: 100px;
  padding-bottom: 105px;
  background:
    radial-gradient(circle at 8% 15%, rgba(22,216,255,.08), transparent 28%),
    radial-gradient(circle at 92% 75%, rgba(77,89,255,.10), transparent 34%);
}
.showcase-heading {
  display: grid;
  grid-template-columns: minmax(0,1fr);
  align-items: end;
  gap: 42px;
  margin-bottom: 34px;
}
.showcase-heading h2 {
  margin-bottom: 10px;
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1.15;
  letter-spacing: -.035em;
}
.showcase-heading > div > p:last-child {
  max-width: 810px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 16px;
}
.supplier-badge {
  min-width: 250px;
  padding: 17px 19px;
  border: 1px solid rgba(100,190,255,.28);
  border-radius: 17px;
  background: linear-gradient(145deg, rgba(12,42,85,.78), rgba(5,20,45,.66));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04);
}
.supplier-badge span,
.supplier-badge strong,
.supplier-badge i { display: block; }
.supplier-badge span {
  color: var(--muted);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.supplier-badge strong { margin-top: 3px; font-size: 15px; }
.supplier-badge i { margin-top: 4px; color: #6edfff; font-size: 10px; font-style: normal; letter-spacing: .12em; }
.showcase-tabs {
  display: flex;
  flex-wrap: wrap;
  width: fit-content;
  max-width: 100%;
  gap: 8px;
  padding: 6px;
  margin-bottom: 26px;
  border: 1px solid rgba(104,184,255,.22);
  border-radius: 15px;
  background: rgba(4,17,40,.72);
}
.showcase-tab {
  min-width: 150px;
  padding: 12px 22px;
  border: 0;
  border-radius: 11px;
  color: #a9bfd6;
  background: transparent;
  font-weight: 700;
  transition: color .2s ease, background .2s ease, box-shadow .2s ease;
}
.showcase-tab.active {
  color: white;
  background: linear-gradient(120deg, rgba(21,216,255,.92), rgba(52,111,255,.92) 62%, rgba(115,91,255,.92));
  box-shadow: 0 10px 24px rgba(31,125,255,.22);
}
.native-showcase-shell {
  display: grid;
  grid-template-columns: 245px minmax(0,1fr);
  gap: 22px;
  align-items: start;
}
.native-category-panel {
  position: sticky;
  top: 110px;
  overflow: hidden;
  border: 1px solid rgba(102,181,255,.25);
  border-radius: 22px;
  background: linear-gradient(155deg, rgba(11,35,75,.88), rgba(4,17,39,.94));
  box-shadow: 0 22px 55px rgba(0,8,32,.28);
}
.native-category-heading {
  padding: 22px 20px 17px;
  border-bottom: 1px solid rgba(97,174,255,.16);
}
.native-category-heading small,
.native-category-heading strong { display: block; }
.native-category-heading small { color: #64dfff; font-size: 9px; letter-spacing: .14em; }
.native-category-heading strong { margin-top: 4px; font-size: 20px; }
.native-filter-list { display: grid; gap: 8px; padding: 13px; }
.native-filter-list button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 13px 14px;
  border: 1px solid rgba(101,181,255,.20);
  border-radius: 12px;
  color: #b7cadc;
  background: rgba(7,25,56,.45);
  text-align: left;
  transition: background .2s ease, border-color .2s ease, color .2s ease, transform .2s ease;
}
.native-filter-list button:hover { transform: translateX(3px); border-color: rgba(70,213,255,.42); color: white; }
.native-filter-list button.active {
  color: white;
  border-color: rgba(54,213,255,.55);
  background: linear-gradient(110deg, rgba(25,151,230,.78), rgba(59,92,225,.72));
  box-shadow: 0 10px 24px rgba(20,102,220,.20);
}
.native-filter-list em {
  min-width: 27px;
  height: 25px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  color: #9adfff;
  background: rgba(0,10,30,.32);
  font-size: 10px;
  font-style: normal;
}
.native-filter-list button.active em { color: white; }
.native-category-note {
  margin: 2px 13px 13px;
  padding: 15px;
  border-radius: 13px;
  border: 1px solid rgba(98,178,255,.16);
  background: rgba(3,15,37,.58);
}
.native-category-note strong { color: #81e7ff; font-size: 12px; }
.native-category-note p { margin: 5px 0 0; color: #8198b1; font-size: 10px; line-height: 1.65; }
.native-product-stage {
  min-width: 0;
  padding: 20px;
  border: 1px solid rgba(101,184,255,.24);
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(8,29,64,.78), rgba(3,14,34,.88));
  box-shadow: 0 24px 65px rgba(0,7,28,.32);
}
.native-stage-head {
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 17px;
  padding: 0 4px 14px;
  border-bottom: 1px solid rgba(95,172,255,.16);
}
.native-stage-head small,
.native-stage-head strong { display: block; }
.native-stage-head small { color: #62dfff; font-size: 9px; letter-spacing: .14em; }
.native-stage-head strong { margin-top: 3px; font-size: 21px; }
.native-stage-head > span {
  padding: 7px 11px;
  border-radius: 999px;
  color: #a8dff4;
  background: rgba(18,66,122,.35);
  border: 1px solid rgba(85,193,255,.20);
  font-size: 10px;
}
.native-product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 15px;
}
.native-product-card[hidden] { display: none !important; }
.native-product-card {
  overflow: hidden;
  border: 1px solid rgba(104,181,255,.22);
  border-radius: 18px;
  background: #f8fbfd;
  box-shadow: 0 16px 36px rgba(0,8,28,.22);
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.native-product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(54,215,255,.68);
  box-shadow: 0 23px 52px rgba(0,10,34,.40), 0 0 24px rgba(23,188,255,.08);
}
.native-product-open {
  width: 100%;
  display: block;
  padding: 0;
  border: 0;
  color: inherit;
  background: transparent;
  text-align: left;
}
.native-product-image {
  aspect-ratio: 1.35;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: white;
  border-bottom: 1px solid #dbe5ed;
}
.native-product-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform .35s ease;
}
.native-product-card:hover .native-product-image img { transform: scale(1.045); }
.native-product-copy {
  position: relative;
  min-height: 132px;
  padding: 17px 18px 18px;
  color: #102a44;
  background: linear-gradient(180deg, #fff, #eef5fa);
}
.native-product-copy small { color: #1978b9; font-size: 9px; font-weight: 700; letter-spacing: .11em; }
.native-product-copy h3 { margin: 5px 0 4px; font-size: 18px; line-height: 1.3; overflow-wrap: anywhere; }
.native-product-copy span { display: block; color: #60758a; font-size: 12px; }
.native-product-copy i {
  display: block;
  margin-top: 12px;
  color: #147cbf;
  font-size: 10px;
  font-style: normal;
  font-weight: 700;
}
.native-source-note {
  margin: 22px 0 0;
  padding: 15px 18px;
  border: 1px solid rgba(99,181,255,.16);
  border-radius: 14px;
  color: #7f96af;
  background: rgba(4,18,42,.55);
  font-size: 10px;
  line-height: 1.75;
}
.native-product-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  padding: 28px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .22s ease;
}
.native-product-modal.open { opacity: 1; pointer-events: auto; }
.native-modal-backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: rgba(0,7,20,.80);
  backdrop-filter: blur(10px);
}
.native-modal-dialog {
  position: relative;
  z-index: 2;
  width: min(900px, 96vw);
  overflow: hidden;
  border: 1px solid rgba(108,200,255,.38);
  border-radius: 26px;
  background: #f7fbfd;
  box-shadow: 0 38px 100px rgba(0,0,0,.55);
  transform: translateY(14px) scale(.98);
  transition: transform .22s ease;
}
.native-product-modal.open .native-modal-dialog { transform: translateY(0) scale(1); }
.native-modal-close {
  position: absolute;
  z-index: 3;
  right: 14px;
  top: 14px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(75,151,202,.28);
  border-radius: 50%;
  color: #10304e;
  background: rgba(255,255,255,.92);
  font-size: 25px;
}
.native-modal-image {
  height: min(62vh, 610px);
  display: grid;
  place-items: center;
  padding: 24px;
  background: white;
}
.native-modal-image img { width: 100%; height: 100%; object-fit: contain; }
.native-modal-copy { padding: 20px 25px 24px; color: #102b45; border-top: 1px solid #dce7ee; background: #eef5fa; }
.native-modal-copy small { color: #167cb9; font-size: 10px; letter-spacing: .12em; }
.native-modal-copy h3 { margin: 4px 0 3px; font-size: 24px; }
.native-modal-copy p { margin: 0; color: #60778c; }
body.modal-open { overflow: hidden; }

@media (max-width: 1140px) {
  .site-nav { gap: 14px; }
  .site-nav > a { font-size: 12px; }
  .native-product-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}

@media (max-width: 900px) {
  .showcase-heading { grid-template-columns: 1fr; align-items: start; gap: 22px; }
  .supplier-badge { min-width: 0; max-width: 320px; }
  .native-showcase-shell { grid-template-columns: 1fr; }
  .native-category-panel { position: relative; top: auto; }
  .native-filter-list { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .native-filter-list button { justify-content: center; text-align: center; }
  .native-filter-list em { display: none; }
  .native-category-note { display: none; }
}

@media (max-width: 620px) {
  .valve-showcase { padding-top: 72px; padding-bottom: 72px; }
  .showcase-tabs { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); width: 100%; }
  .showcase-tab { width: 100%; min-width: 0; padding-inline: 12px; }
  .native-filter-list { display: flex; overflow-x: auto; padding-bottom: 12px; scrollbar-width: thin; }
  .native-filter-list button { min-width: 128px; flex: 0 0 auto; }
  .native-product-stage { padding: 14px; }
  .native-stage-head { align-items: flex-start; }
  .native-product-grid { grid-template-columns: 1fr; }
  .native-product-image { aspect-ratio: 1.55; }
  .native-product-copy { min-height: 112px; }
  .native-product-modal { padding: 12px; }
  .native-modal-dialog { border-radius: 19px; }
  .native-modal-image { height: 48vh; padding: 12px; }
}

.about-top { margin-bottom: 34px; align-items: start; }
.top-copy { margin-top: 6px; }
.about-panels { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px; align-items: stretch; }
.about-panel { display: flex; flex-direction: column; min-height: 100%; }
.about-overview-panel { padding: 28px; border-radius: 24px; border: 1px solid rgba(97, 182, 255, .20); background: linear-gradient(180deg, rgba(7, 25, 58, .68), rgba(2, 13, 33, .68)); box-shadow: inset 0 1px 0 rgba(255,255,255,.03), 0 16px 40px rgba(0, 0, 0, .18); }
.about-overview { margin-top: 0; padding: 0; border: 0; background: transparent; box-shadow: none; }
.vision-card { margin-top: 24px; flex: 1; display: flex; flex-direction: column; justify-content: center; }
.about-org-chart { margin-top: 0; }
.org-chart-frame { flex: 1; display: flex; align-items: center; justify-content: center; }
.org-chart-frame img { width: 100%; }

@media (max-width: 1100px) {
  .about-panels { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .about-top { margin-bottom: 24px; }
  .about-overview-panel, .about-org-chart { padding: 18px; }
}

@media (max-width: 768px) {
  .label-a { left: 5%; bottom: 26%; }
  .label-b { right: 4%; top: 8%; }
  .label-c { right: 5%; bottom: 26%; }
  .label-d { left: 4%; top: 18%; }
  .label-e { left: 5%; bottom: 48%; }
  .visual-label { min-width: 92px; padding: 8px 10px; }
  .visual-label strong { font-size: 12px; }
  .visual-label small { font-size: 9px; }
}

/* === Hero visual alignment fix (2026-08-17) === */
.hero-visual {
  padding-bottom: 22px;
}
.visual-frame {
  aspect-ratio: 1672 / 941;
  min-height: 0;
}
.visual-frame img {
  min-height: 0;
  height: 100%;
  aspect-ratio: 1672 / 941;
  object-fit: cover;
  object-position: center center;
}
/* Re-align labels to the actual component positions in the source image */
.label-d { left: 3.2%; top: 56%; }
.label-e { left: 10.5%; bottom: 34%; }
.label-a { left: 4.4%; bottom: 12.5%; }
.label-b { right: 2.4%; top: auto; bottom: 24%; }
.label-c { right: 12.5%; bottom: 8%; display: block; }

@media (max-width: 1200px) {
  .hero-visual { max-width: 760px; }
  .label-d { left: 2.8%; top: 55%; }
  .label-e { left: 8%; bottom: 34%; }
  .label-a { left: 4%; bottom: 13%; }
  .label-b { right: 2%; bottom: 24%; }
  .label-c { right: 11%; bottom: 9%; }
}

@media (max-width: 768px) {
  .visual-frame {
    aspect-ratio: 1672 / 941;
  }
  .visual-frame img {
    aspect-ratio: 1672 / 941;
  }
  .visual-label {
    min-width: 88px;
    padding: 7px 9px;
  }
  .visual-label small {
    font-size: 8px;
  }
  .visual-label strong {
    font-size: 11px;
  }
  .label-d { left: 3%; top: 54%; }
  .label-e { left: 6%; bottom: 33%; }
  .label-a { left: 3%; bottom: 12%; }
  .label-b { right: 1%; top: auto; bottom: 23%; }
  .label-c { right: 8%; bottom: 8%; display: block; }
}

/* === Hero visual fine-tune round 2 (2026-08-17) === */
.hero {
  padding: 136px 0 42px;
}
.hero-grid {
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  gap: clamp(24px, 3vw, 44px);
  align-items: start;
}
.hero-copy {
  padding-top: 10px;
}
.hero-lead {
  max-width: 610px;
  font-size: 17px;
  line-height: 1.76;
}
.hero-feature-grid {
  margin: 26px 0 22px;
  gap: 10px;
}
.mini-feature {
  min-height: 76px;
  padding: 14px;
}
.hero-visual {
  max-width: 780px;
  width: 100%;
  margin-left: auto;
  padding-bottom: 8px;
}
.visual-frame {
  border-radius: 28px;
}
.visual-frame::after {
  background: linear-gradient(180deg, rgba(0,0,0,0) 62%, rgba(1,8,24,.70));
}
.visual-label {
  min-width: 92px;
  padding: 7px 10px;
  border-radius: 10px;
  background: rgba(2,16,40,.62);
  box-shadow: 0 8px 22px rgba(0,0,0,.20);
}
.visual-label small {
  font-size: 8px;
  letter-spacing: .1em;
}
.visual-label strong {
  font-size: 11px;
  line-height: 1.25;
}
/* tuck labels closer to edges to reveal more of the image */
.label-d { left: 2.2%; top: 54%; }
.label-e { left: 8.3%; bottom: 32%; }
.label-a { left: 3.2%; bottom: 11%; }
.label-b { right: 1.4%; bottom: 22%; }
.label-c { right: 10.2%; bottom: 7%; }
.visual-metrics {
  left: 14px;
  right: 14px;
  bottom: 14px;
  gap: 8px;
}
.visual-metrics div {
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(5,20,47,.60);
}
.visual-metrics strong {
  font-size: 11px;
}
.visual-metrics span {
  font-size: 10px;
  line-height: 1.35;
}
.trust-strip {
  margin-top: 28px;
  min-height: 62px;
  padding: 14px 22px;
}

@media (max-width: 1200px) {
  .hero {
    padding: 126px 0 36px;
  }
  .hero-grid {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
    gap: 30px;
  }
  .hero-visual {
    max-width: 720px;
  }
  .visual-label {
    min-width: 86px;
    padding: 6px 9px;
  }
  .label-d { left: 1.8%; top: 54%; }
  .label-e { left: 6.8%; bottom: 32%; }
  .label-a { left: 2.6%; bottom: 11%; }
  .label-b { right: 1%; bottom: 22%; }
  .label-c { right: 8.8%; bottom: 7%; }
}

@media (max-width: 900px) {
  .hero-visual {
    max-width: 100%;
    margin-inline: auto;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: 112px 0 28px;
  }
  .hero-copy {
    padding-top: 0;
  }
  .hero-lead {
    font-size: 16px;
  }
  .visual-label {
    min-width: 78px;
    padding: 5px 7px;
  }
  .visual-label small {
    font-size: 7px;
  }
  .visual-label strong {
    font-size: 10px;
  }
  .label-d { left: 1.5%; top: 52%; }
  .label-e { left: 4.5%; bottom: 31%; }
  .label-a { left: 1.5%; bottom: 10%; }
  .label-b { right: .5%; bottom: 20.5%; }
  .label-c { right: 6.6%; bottom: 6%; }
  .visual-metrics {
    left: 10px;
    right: 10px;
    bottom: 10px;
    gap: 6px;
  }
  .visual-metrics div {
    padding: 8px 9px;
  }
  .visual-metrics strong {
    font-size: 10px;
  }
  .visual-metrics span {
    font-size: 9px;
  }
  .trust-strip {
    margin-top: 20px;
  }
}

/* === Hero visual fine-tune round 3 (2026-08-17) === */
.hero {
  padding: 132px 0 38px;
}
.hero-grid {
  grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
  gap: clamp(18px, 2.4vw, 34px);
  align-items: start;
}
.hero-copy {
  padding-top: 4px;
}
.hero-copy h1 {
  margin-bottom: 18px;
}
.hero-lead {
  max-width: 560px;
  font-size: 16px;
  line-height: 1.72;
}
.hero-feature-grid {
  margin: 20px 0 18px;
}
.hero-actions {
  margin-top: 6px;
}
.hero-visual {
  max-width: 980px;
  width: 100%;
  margin-left: auto;
  padding-bottom: 4px;
}
.visual-frame {
  aspect-ratio: 1.24 / 1;
  border-radius: 26px;
}
.visual-frame img {
  aspect-ratio: 1.24 / 1;
}
.visual-label {
  min-width: 118px;
  max-width: 168px;
  padding: 8px 12px;
  border-radius: 12px;
  background: rgba(3, 18, 43, .66);
  border-color: rgba(99,220,255,.34);
}
.visual-label small {
  font-size: 8px;
  margin-bottom: 3px;
}
.visual-label strong {
  font-size: 12px;
  line-height: 1.3;
}
/* clearer, non-overlapping component markers */
.label-d { left: 2.8%; top: 39%; }     /* 卡套接頭 */
.label-e { left: 11.5%; top: 50.5%; }  /* 不鏽鋼鑄造件 */
.label-a { left: 4.2%; bottom: 24%; }  /* 液冷分歧管 */
.label-b { right: 2.4%; top: 48.5%; }  /* 熱交換器 */
.label-c { right: 8.8%; bottom: 24%; } /* 各種閥門 */
.visual-metrics {
  left: 12px;
  right: 12px;
  bottom: 12px;
  gap: 9px;
}
.visual-metrics div {
  padding: 11px 12px;
  border-radius: 14px;
  background: rgba(5,20,47,.72);
}
.visual-metrics strong {
  font-size: 11px;
  margin-bottom: 2px;
}
.visual-metrics span {
  font-size: 10px;
  line-height: 1.35;
}
.trust-strip {
  margin-top: 20px;
}

@media (max-width: 1400px) {
  .hero-grid {
    grid-template-columns: minmax(0, .84fr) minmax(0, 1.16fr);
  }
  .hero-visual {
    max-width: 920px;
  }
}

@media (max-width: 1200px) {
  .hero-grid {
    grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr);
    gap: 24px;
  }
  .hero-visual {
    max-width: 860px;
  }
  .visual-label {
    min-width: 108px;
    max-width: 154px;
    padding: 7px 10px;
  }
  .visual-label strong {
    font-size: 11px;
  }
  .label-d { left: 2.4%; top: 39%; }
  .label-e { left: 10.6%; top: 50.5%; }
  .label-a { left: 3.8%; bottom: 23%; }
  .label-b { right: 2.2%; top: 48%; }
  .label-c { right: 7.8%; bottom: 23%; }
}

@media (max-width: 1024px) {
  .hero-visual {
    max-width: 100%;
  }
  .visual-frame {
    aspect-ratio: 1.34 / 1;
  }
  .visual-frame img {
    aspect-ratio: 1.34 / 1;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: 108px 0 26px;
  }
  .hero-lead {
    max-width: 100%;
    font-size: 15px;
  }
  .visual-frame {
    aspect-ratio: 1.28 / 1;
  }
  .visual-frame img {
    aspect-ratio: 1.28 / 1;
  }
  .visual-label {
    min-width: 88px;
    max-width: 124px;
    padding: 6px 8px;
  }
  .visual-label small {
    font-size: 7px;
  }
  .visual-label strong {
    font-size: 10px;
  }
  .label-d { left: 2%; top: 38%; }
  .label-e { left: 8%; top: 50%; }
  .label-a { left: 2.8%; bottom: 22%; }
  .label-b { right: 1.6%; top: 47%; }
  .label-c { right: 6.5%; bottom: 22%; }
  .visual-metrics {
    left: 9px;
    right: 9px;
    bottom: 9px;
    gap: 6px;
  }
  .visual-metrics div {
    padding: 8px 9px;
  }
  .visual-metrics strong {
    font-size: 10px;
  }
  .visual-metrics span {
    font-size: 9px;
  }
}

/* === Hero label transparency and sizing refinement (2026-08-17) === */
.visual-label {
  min-width: 0;
  width: max-content;
  max-width: 150px;
  padding: 6px 10px;
  border-radius: 12px;
  background: rgba(4, 18, 42, .44);
  border-color: rgba(99, 220, 255, .24);
  backdrop-filter: blur(7px);
  box-shadow: 0 8px 22px rgba(0, 0, 0, .16);
}
.visual-label small {
  font-size: 7.5px;
  line-height: 1.2;
  margin-bottom: 2px;
  letter-spacing: .06em;
}
.visual-label strong {
  font-size: 11px;
  line-height: 1.2;
  letter-spacing: 0;
}
/* individual sizing to avoid overly tall or overly wide boxes */
.label-b,
.label-e {
  max-width: 132px;
}
.label-a,
.label-c,
.label-d {
  max-width: 118px;
}
.label-b {
  right: 2.6%;
  top: 49.2%;
}
.label-e {
  left: 11.8%;
  top: 51.4%;
}
.visual-metrics {
  left: 12px;
  right: 12px;
  bottom: 10px;
  gap: 8px;
}
.visual-metrics div {
  padding: 9px 10px;
  border-radius: 13px;
  background: rgba(5, 20, 47, .54);
  border-color: rgba(99,220,255,.18);
  backdrop-filter: blur(7px);
}
.visual-metrics strong {
  font-size: 10.5px;
}
.visual-metrics span {
  font-size: 9.5px;
  line-height: 1.3;
}

@media (max-width: 1200px) {
  .visual-label {
    max-width: 138px;
    padding: 6px 9px;
  }
  .label-b,
  .label-e {
    max-width: 124px;
  }
  .label-a,
  .label-c,
  .label-d {
    max-width: 110px;
  }
}

@media (max-width: 768px) {
  .visual-label {
    width: auto;
    max-width: 112px;
    padding: 5px 7px;
  }
  .visual-label small {
    font-size: 6.5px;
  }
  .visual-label strong {
    font-size: 9.5px;
  }
  .label-b,
  .label-e {
    max-width: 102px;
  }
  .label-a,
  .label-c,
  .label-d {
    max-width: 92px;
  }
  .visual-metrics div {
    padding: 7px 8px;
  }
  .visual-metrics strong {
    font-size: 9.5px;
  }
  .visual-metrics span {
    font-size: 8.5px;
  }
}

/* === Requested rollback + only resize Heat Exchanger / Stainless Castings labels === */
.label-b,
.label-e {
  height: auto !important;
  min-height: 0 !important;
  padding: 6px 9px !important;
  border-radius: 11px;
  overflow: hidden;
}
.label-b small,
.label-b strong,
.label-e small,
.label-e strong {
  white-space: nowrap;
}
.label-b {
  min-width: 104px !important;
  max-width: 104px !important;
}
.label-e {
  min-width: 116px !important;
  max-width: 116px !important;
}
.label-b small,
.label-e small {
  font-size: 7px;
  line-height: 1.1;
  margin-bottom: 2px;
}
.label-b strong,
.label-e strong {
  font-size: 11px;
  line-height: 1.15;
}

/* === Fine-tune only Heat Exchanger / Stainless Castings label boxes === */
.label-b,
.label-e {
  display: inline-flex !important;
  flex-direction: column !important;
  align-items: flex-start !important;
  justify-content: flex-start !important;
  width: auto !important;
  height: fit-content !important;
  min-width: 0 !important;
  min-height: 0 !important;
  max-height: none !important;
  padding: 6px 8px !important;
  border-radius: 10px !important;
  overflow: hidden !important;
}
.label-b {
  max-width: 96px !important;
}
.label-e {
  max-width: 102px !important;
}
.label-b small,
.label-e small {
  display: block !important;
  font-size: 6.8px !important;
  line-height: 1.05 !important;
  margin: 0 0 2px 0 !important;
  letter-spacing: .05em !important;
  white-space: nowrap !important;
}
.label-b strong,
.label-e strong {
  display: block !important;
  font-size: 10.8px !important;
  line-height: 1.12 !important;
  letter-spacing: 0 !important;
  white-space: nowrap !important;
}

@media (max-width: 520px) {
  .line-contact-card { grid-template-columns: 104px minmax(0,1fr); gap: 13px; padding: 13px; }
  .line-contact-copy strong { font-size: 14px; }
  .line-contact-copy span { font-size: 12px; }
}

/* Language switch */
.lang-switch { display:inline-flex; align-items:center; justify-content:center; min-width:44px; height:36px; padding:0 12px; border:1px solid rgba(99,220,255,.28); border-radius:999px; color:#76e4ff !important; font-weight:800; font-size:12px; letter-spacing:.04em; background:rgba(12,42,85,.45); transition:.2s ease; }
.lang-switch:hover { color:#fff !important; border-color:rgba(99,220,255,.65); background:rgba(24,105,178,.45); box-shadow:0 0 20px rgba(36,190,255,.12); }
@media (max-width: 900px) { .site-nav .lang-switch { width:100%; min-height:44px; border-radius:12px; } }

/* === Floating Back-to-Top Button === */
.back-to-top {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 9999;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 118px;
  height: 46px;
  padding: 0 18px;
  border: 1px solid rgba(89, 208, 255, .32);
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(5, 25, 55, .78), rgba(13, 56, 105, .72));
  box-shadow: 0 12px 30px rgba(0, 0, 0, .28), inset 0 1px 0 rgba(255, 255, 255, .06);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: #b9ddf6;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  text-decoration: none;
  opacity: .88;
  transition: transform .2s ease, opacity .2s ease, border-color .2s ease, background .2s ease;
}
.back-to-top:hover,
.back-to-top:focus-visible {
  transform: translateY(-3px);
  opacity: 1;
  color: #fff;
  border-color: rgba(84, 224, 255, .65);
  background: linear-gradient(135deg, rgba(11, 61, 116, .92), rgba(30, 84, 170, .88));
  outline: none;
}

@media (max-width: 768px) {
  .back-to-top {
    right: 14px;
    bottom: 16px;
    min-width: 48px;
    width: 48px;
    height: 48px;
    padding: 0;
    font-size: 0;
  }
  .back-to-top::after {
    content: "↑";
    font-size: 20px;
    line-height: 1;
  }
}