:root {
  --ink: #0a0f1a;
  --ink-2: #0f1626;
  --ink-3: #162036;
  --line-d: rgba(148, 178, 214, .14);
  --text-d: #e8eef7;
  --muted-d: #8d9bb3;

  --paper: #ffffff;
  --paper-2: #f3f6fa;
  --line-l: #dfe5ee;
  --text-l: #0e1726;
  --muted-l: #5a6880;

  --cyan: #1ec8d8;
  --blue: #2f7cf6;
  --orange: #e8962a;
  --grad: linear-gradient(90deg, #1ec8d8, #2f7cf6);

  --sans: "IBM Plex Sans", "Noto Sans TC", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", monospace;
  --r: 4px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0; font-family: var(--sans); background: var(--paper); color: var(--text-l);
  line-height: 1.65; -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
html[lang="zh-Hant"] body { line-height: 1.8; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0 0 .5em; line-height: 1.2; font-weight: 600; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
.container { width: min(1200px, 100% - 32px); margin-inline: auto; }

.mono-label {
  font-family: var(--mono); font-size: .76rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--blue); margin: 0 0 12px; display: flex; align-items: center; gap: 10px;
}
.dark .mono-label { color: var(--cyan); }
html[lang="zh-Hant"] .mono-label { letter-spacing: .2em; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50; background: rgba(10, 15, 26, .92);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--line-d); color: var(--text-d);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 66px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { width: 26px; height: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-weight: 700; letter-spacing: .04em; font-size: .98rem; }
.brand-name .llc { font-weight: 400; color: var(--muted-d); }
.brand-tag { font-family: var(--mono); font-size: .58rem; letter-spacing: .3em; color: var(--orange); }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a { font-size: .9rem; color: var(--muted-d); transition: color .2s; }
.nav-links a:hover { color: #fff; }
.nav-links .nav-cta { color: #fff; border: 1px solid rgba(30, 200, 216, .5); padding: 7px 16px; border-radius: var(--r); }
.nav-links .nav-cta:hover { background: rgba(30, 200, 216, .12); }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.lang-toggle { background: none; border: 0; color: var(--muted-d); font: 500 .8rem var(--mono); cursor: pointer; padding: 6px 4px; }
.lang-toggle .sep { margin: 0 6px; opacity: .4; }
html[lang="en"] [data-lang-label="en"], html[lang="zh-Hant"] [data-lang-label="zh"] { color: #fff; }
.menu-btn { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.menu-btn span { display: block; width: 22px; height: 2px; margin: 5px 0; background: #fff; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px; padding: 13px 22px; border-radius: var(--r);
  font: 500 .95rem var(--sans); border: 1px solid transparent; cursor: pointer; transition: .2s;
}
.btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; transition: transform .2s; }
.btn:hover svg { transform: translateX(3px); }
.btn-primary { background: var(--grad); color: #04121c; font-weight: 600; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-line { border-color: rgba(232, 238, 247, .3); color: #fff; }
.btn-line:hover { border-color: #fff; }

/* ---------- Sections ---------- */
.section { padding: clamp(72px, 9vw, 120px) 0; position: relative; }
.dark { background: var(--ink); color: var(--text-d); }
.light { background: var(--paper); }
.tint { background: var(--paper-2); }
.sec-head { display: flex; gap: 22px; align-items: flex-start; margin-bottom: 26px; }
.sec-num {
  font-family: var(--mono); font-size: .82rem; color: var(--muted-l); padding-top: 4px;
  border-top: 2px solid var(--blue); min-width: 34px;
}
.dark .sec-num { color: var(--muted-d); border-color: var(--cyan); }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.5rem); max-width: 760px; }
.sec-lead { max-width: 780px; font-size: 1.06rem; color: var(--muted-l); margin: 0 0 48px 56px; }
.dark .sec-lead { color: var(--muted-d); }
.sec-lead strong { color: var(--text-l); font-weight: 600; }

/* ---------- Hero ---------- */
.hero { padding: clamp(64px, 8vw, 104px) 0 0; overflow: hidden; }
.hero-grid-bg {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(148, 178, 214, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 178, 214, .06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 70% 40%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 70% 40%, #000 30%, transparent 75%);
}
.hero-inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; position: relative; }
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 0 rgba(30, 200, 216, .6); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(30, 200, 216, 0); } 100% { box-shadow: 0 0 0 0 rgba(30, 200, 216, 0); } }
h1 { font-size: clamp(2.2rem, 4.6vw, 3.7rem); font-weight: 600; letter-spacing: -.02em; line-height: 1.1; margin-bottom: 22px; }
html[lang="zh-Hant"] h1 { line-height: 1.25; letter-spacing: 0; }
h1 .accent { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: 1.12rem; color: var(--muted-d); max-width: 600px; font-weight: 300; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }

.hero-wafer { position: relative; max-width: 460px; width: 100%; justify-self: center; }
#wafer { width: 100%; height: auto; display: block; overflow: visible; }
#wafer .die { fill: rgba(47, 124, 246, .10); stroke: rgba(148, 178, 214, .22); stroke-width: .6; transition: fill .4s; }
#wafer .die.pass { fill: rgba(30, 200, 216, .55); }
#wafer .die.fail { fill: rgba(232, 150, 42, .75); }
#wafer .die.edge { fill: rgba(148, 178, 214, .05); }
#wafer .rim { fill: url(#waferGrad); stroke: rgba(148, 178, 214, .45); stroke-width: 1.2; }
#wafer .ring { fill: none; stroke: rgba(148, 178, 214, .15); stroke-dasharray: 2 6; }
#wafer .tick { stroke: rgba(148, 178, 214, .5); stroke-width: 1; }
#wafer .probe { stroke: var(--cyan); stroke-width: 1.4; fill: none; }
#wafer .scan { fill: url(#scanGrad); }
.wafer-readout {
  position: absolute; right: -6px; bottom: 6px; background: rgba(15, 22, 38, .9); border: 1px solid var(--line-d);
  padding: 10px 14px; font-family: var(--mono); font-size: .7rem; display: grid; gap: 4px; min-width: 170px;
}
.wafer-readout div { display: flex; justify-content: space-between; gap: 14px; }
.wafer-readout span { color: var(--muted-d); }
.wafer-readout b { font-weight: 500; color: #fff; }
.wafer-readout b.ok { color: var(--cyan); }

.kpis {
  display: grid; grid-template-columns: repeat(4, 1fr); margin: clamp(56px, 7vw, 88px) 0 0;
  border-top: 1px solid var(--line-d);
}
.kpis > div { padding: 28px 24px 34px 0; border-right: 1px solid var(--line-d); }
.kpis > div + div { padding-left: 24px; }
.kpis > div:last-child { border-right: 0; }
.kpis dt { font-family: var(--mono); font-size: clamp(1.3rem, 2.2vw, 1.7rem); color: #fff; margin-bottom: 6px; }
.kpis dd { margin: 0; color: var(--muted-d); font-size: .88rem; }

/* ---------- About ---------- */
.partners { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-left: 56px; }
.partner { border: 1px solid var(--line-l); border-radius: var(--r); padding: 32px; background: #fff; position: relative; }
.partner::before { content: ""; position: absolute; left: -1px; top: -1px; width: 48px; height: 3px; background: var(--blue); }
.partner:last-child::before { background: var(--orange); }
.partner header { display: flex; gap: 16px; align-items: center; margin-bottom: 18px; }
.partner h3 { margin: 0; font-size: 1.25rem; }
.partner header p { margin: 0; color: var(--muted-l); font-size: .88rem; }
.partner > p { color: var(--muted-l); font-size: .96rem; }
.p-code {
  width: 46px; height: 46px; flex: none; display: grid; place-items: center; font: 600 1.2rem var(--mono);
  border: 1px solid var(--orange); color: var(--orange);
}
.p-code.r { border-color: var(--blue); color: var(--blue); }
.spec-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line-l); }
.spec-list li { padding: 10px 0 10px 22px; border-bottom: 1px solid var(--line-l); font-size: .93rem; position: relative; }
.spec-list li::before { content: ""; position: absolute; left: 2px; top: 50%; width: 8px; height: 8px; border: 1.5px solid var(--blue); transform: translateY(-50%); }

.values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 56px 0 0 56px; border-top: 1px solid var(--line-l); }
.values > div { padding: 26px 22px 0 0; }
.values .v-idx { font-family: var(--mono); font-size: .78rem; color: var(--blue); display: block; margin-bottom: 10px; }
.values h3 { font-size: 1.02rem; }
.values p { font-size: .9rem; color: var(--muted-l); margin: 0; }

/* ---------- Capabilities ---------- */
.cap-group { display: grid; grid-template-columns: 260px 1fr; gap: 40px; margin: 48px 0 0 56px; padding-top: 36px; border-top: 1px solid var(--line-l); }
.cap-group:first-of-type { margin-top: 40px; }
.cap-tag { font-family: var(--mono); font-size: .72rem; letter-spacing: .12em; color: var(--blue); border: 1px solid currentColor; padding: 3px 8px; display: inline-block; margin-bottom: 14px; }
.cap-tag.warm { color: var(--orange); }
.cap-side h3 { font-size: 1.3rem; }
.cap-side p { color: var(--muted-l); font-size: .9rem; }
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-l); border: 1px solid var(--line-l); }
.cap { background: #fff; padding: 26px 24px; transition: background .2s; position: relative; }
.cap:hover { background: #fbfcfe; }
.cap::after { content: ""; position: absolute; left: 0; top: 0; height: 2px; width: 0; background: var(--blue); transition: width .3s; }
.cap.warm::after { background: var(--orange); }
.cap:hover::after { width: 100%; }
.cap-id { font-family: var(--mono); font-size: .74rem; color: var(--muted-l); display: block; margin-bottom: 14px; }
.cap h4 { font-size: 1.02rem; margin-bottom: 10px; }
.cap p { font-size: .89rem; color: var(--muted-l); margin: 0; }

/* ---------- Products ---------- */
.gallery { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; margin-left: 56px; }
.g-item { grid-column: span 2; margin: 0; border: 1px solid var(--line-l); border-radius: var(--r); overflow: hidden; background: #fff; }
.g-item.wide { grid-column: span 3; }
.g-img { background: #f0f2f5; position: relative; }
.g-img::before, .g-img::after { content: ""; position: absolute; width: 14px; height: 14px; border: 1.5px solid var(--blue); z-index: 1; }
.g-img::before { left: 10px; top: 10px; border-right: 0; border-bottom: 0; }
.g-img::after { right: 10px; bottom: 10px; border-left: 0; border-top: 0; }
.g-img img { width: 100%; height: 260px; object-fit: contain; mix-blend-mode: multiply; }
.g-item.wide .g-img img { object-fit: cover; }
.g-item figcaption { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 3px; border-top: 1px solid var(--line-l); }
.g-id { font-family: var(--mono); font-size: .72rem; color: var(--blue); }
.g-item figcaption strong { font-weight: 600; }
.g-item figcaption span:last-child { font-size: .88rem; color: var(--muted-l); }

/* ---------- Cases ---------- */
.cases { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line-d); border: 1px solid var(--line-d); margin-left: 56px; }
.case { background: var(--ink-2); padding: 30px; }
.case h3 { font-size: 1.12rem; }
.case p { margin: 0; color: var(--muted-d); font-size: .93rem; }
.case-tag { display: inline-block; font-family: var(--mono); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--cyan); margin-bottom: 14px; }
.case-tag::before { content: "■ "; }
.case-tag.warm { color: var(--orange); }
.case-img { display: grid; grid-template-columns: 170px 1fr; gap: 24px; align-items: start; }
.case-img img { width: 100%; height: 190px; object-fit: cover; filter: saturate(.85); }
.clients { margin: 56px 0 0 56px; }
.clients ul { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); border-top: 1px solid var(--line-d); border-left: 1px solid var(--line-d); }
.clients li { padding: 18px 10px; text-align: center; font-weight: 600; letter-spacing: .04em; color: #c4cfdf; border-right: 1px solid var(--line-d); border-bottom: 1px solid var(--line-d); }

/* ---------- Quality ---------- */
.flow { list-style: none; padding: 0; margin: 0 0 0 56px; display: grid; grid-template-columns: repeat(4, 1fr); counter-reset: f; }
.flow li { padding: 0 24px 34px 0; position: relative; }
.flow li::before { content: ""; position: absolute; left: 0; right: 0; top: 11px; height: 1px; background: var(--line-l); }
.flow li:nth-child(4n)::before { right: 24px; }
.f-n {
  position: relative; display: inline-block; font-family: var(--mono); font-size: .76rem; color: var(--blue);
  background: #fff; border: 1px solid var(--blue); padding: 2px 8px; margin-bottom: 16px;
}
.flow h3 { font-size: 1rem; }
.flow p { font-size: .88rem; color: var(--muted-l); margin: 0; }
.certs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 24px 0 0 56px; border: 1px solid var(--line-l); background: var(--paper-2); }
.certs > div { padding: 22px; border-right: 1px solid var(--line-l); }
.certs > div:last-child { border-right: 0; }
.certs strong { display: block; font-family: var(--mono); font-weight: 500; font-size: 1rem; margin-bottom: 4px; }
.certs span { font-size: .86rem; color: var(--muted-l); }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.contact-grid .sec-lead { margin-left: 56px; margin-bottom: 36px; }
.offices { margin-left: 56px; border-top: 1px solid var(--line-d); }
.office { display: flex; gap: 18px; padding: 20px 0; border-bottom: 1px solid var(--line-d); }
.o-code { font-family: var(--mono); font-size: .8rem; color: var(--cyan); border: 1px solid rgba(30, 200, 216, .45); width: 38px; height: 38px; flex: none; display: grid; place-items: center; }
.office h3 { font-size: .98rem; margin-bottom: 4px; }
.office p { margin: 0; color: var(--muted-d); font-size: .92rem; }
.office a { color: #fff; font-family: var(--mono); font-size: .92rem; }
.office a:hover { color: var(--cyan); }
.contact-form { background: var(--ink-2); border: 1px solid var(--line-d); padding: 32px; display: grid; gap: 16px; border-radius: var(--r); }
.f-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form label { display: grid; gap: 6px; font-size: .84rem; color: var(--muted-d); }
.contact-form input, .contact-form textarea {
  width: 100%; background: var(--ink); border: 1px solid var(--line-d); border-radius: var(--r);
  padding: 12px 14px; color: #fff; font: inherit; font-size: .95rem; resize: vertical;
}
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--cyan); }
.contact-form .btn { justify-self: start; }
.form-note { font-size: .8rem; color: var(--muted-d); margin: 0; }

/* ---------- Footer ---------- */
.site-footer { background: #060a12; color: var(--muted-d); border-top: 1px solid var(--line-d); padding: 28px 0; }
.footer-grid { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.footer-brand { display: flex; gap: 12px; align-items: center; }
.footer-brand div { display: flex; flex-direction: column; line-height: 1.35; }
.footer-brand strong { color: #fff; font-weight: 600; }
.footer-brand span { font-size: .82rem; }
.copy { margin: 0; font-size: .8rem; font-family: var(--mono); }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .cap-group { grid-template-columns: 1fr; gap: 20px; }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 960px) {
  .menu-btn { display: block; }
  .nav-links {
    position: absolute; top: 66px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--ink); border-bottom: 1px solid var(--line-d); max-height: 0; overflow: hidden; transition: max-height .3s;
  }
  .nav-links.open { max-height: 420px; }
  .nav-links a { padding: 14px 16px; border-top: 1px solid var(--line-d); }
  .nav-links .nav-cta { border: 0; border-top: 1px solid var(--line-d); border-radius: 0; padding: 14px 16px; }
  .hero-inner, .contact-grid, .partners { grid-template-columns: 1fr; }
  .hero-wafer { max-width: 340px; }
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .kpis > div:nth-child(2) { border-right: 0; }
  .kpis > div:nth-child(3) { padding-left: 0; }
  .kpis > div:nth-child(n+3) { border-top: 1px solid var(--line-d); }
  .values, .flow, .certs { grid-template-columns: repeat(2, 1fr); }
  .flow li:nth-child(2n)::before { right: 24px; }
  .certs > div:nth-child(2) { border-right: 0; }
  .certs > div:nth-child(n+3) { border-top: 1px solid var(--line-l); }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .g-item, .g-item.wide { grid-column: span 1; }
  .g-item.wide:last-child { grid-column: span 2; }
  .cases { grid-template-columns: 1fr; }
  .sec-lead, .partners, .values, .cap-group, .gallery, .cases, .clients, .flow, .certs, .offices, .contact-grid .sec-lead { margin-left: 0; }
}
@media (max-width: 600px) {
  .brand-tag { display: none; }
  .sec-head { flex-direction: column; gap: 10px; }
  .kpis, .values, .flow, .certs, .cap-grid, .gallery, .f-row { grid-template-columns: 1fr; }
  .kpis > div { border-right: 0; padding-left: 0 !important; border-top: 1px solid var(--line-d); }
  .kpis > div:first-child { border-top: 0; }
  .certs > div { border-right: 0; border-top: 1px solid var(--line-l); }
  .certs > div:first-child { border-top: 0; }
  .flow li::before { display: none; }
  .g-item.wide:last-child { grid-column: span 1; }
  .case-img { grid-template-columns: 1fr; }
  .case-img img { height: 200px; }
  .partner, .contact-form { padding: 22px; }
  .wafer-readout { right: 0; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}