/* Reference: liangcai-index.html. Shared presentation; navigation markup stays intact. */
:root {
  color-scheme: dark;
  --bg: #0d0f12; --paper: #14171b; --ink: #eceef1; --ink-soft: #b0b6bf;
  --muted: #a0a6af; --line: #262a31; --line-soft: #1c2026;
  --primary: #e8632b; --primary-strong: #f07d4a; --primary-soft: #302018;
  --secondary: #e8632b; --secondary-soft: #302018;
  --ui-border: #262a31; --ui-surface: #14171b; --ui-ink: #eceef1;
  --ui-muted: #a0a6af; --ui-action: #e8632b; --maxw: 1200px;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-serif: var(--font-sans); --font-mono: ui-monospace, 'SFMono-Regular', Consolas, monospace;
}
body { background: var(--bg); color: var(--ink); }
h1,h2,h3,h4 { font-family: var(--font-serif); letter-spacing: -.025em; font-weight: 600; line-height: 1.2; }
h2 { font-size: clamp(28px,3.1vw,40px); }
p { color: var(--ink-soft); line-height: 1.75; }
::selection { background: var(--primary); color: #fff; }
.section { padding-block: 96px; }
.eyebrow { color: var(--primary); font: 500 11px/1.6 var(--font-mono); letter-spacing: .16em; }
.eyebrow::before { display: none; }
.topbar { background: rgba(13,15,18,.94); border-color: var(--line); }
.brand, .footer-grid .brand { color: var(--ink); }
.nav-links > li > a { color: var(--ink-soft); }
.nav-links > li > a:hover,.nav-links > li > a[style*="primary"] { background: var(--line-soft) !important; color: var(--primary) !important; }
.mega { background: var(--paper); border-color: var(--line); box-shadow: 0 20px 60px #0006; }
.mega a:hover { background: var(--line-soft); }
.mega .t2 { color: var(--ink); }
.mega .t3 { color: var(--muted); }
.lang-switcher .lang-btn,.lang-dropdown { color: var(--ink); background: var(--paper); border-color: #363b44; }
.lang-dropdown button,.lang-menu button { color: var(--ink); }
.lang-switcher .lang-btn:hover { color: var(--primary); }
.cta-start { background: transparent; border: 1px solid #363b44; color: var(--ink); }
.cta-start:hover { background: var(--primary); color: #fff; }
.nav-burger span { background: var(--ink); }
.mobile-drawer.open { background: var(--bg); }
.btn { font: 500 14px/1.3 var(--font-sans); letter-spacing: 0; text-transform: none; min-height: 48px; padding: 13px 25px; border-radius: 2px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: #f07d4a; color: #fff; }
.btn-secondary { background: transparent; border-color: #454b55; color: var(--ink); }
.btn-secondary:hover { background: var(--line-soft); border-color: var(--ink); color: var(--ink); }
.hero { background: var(--paper); border-bottom: 1px solid var(--line); }
.hero::before,.hero::after { display: none; }
.hero .eyebrow { color: var(--primary); }
.hero-grid > div:last-child > img,.hero .hero-photo img { box-shadow: none; }
.card,.cap-card,.cat-card,.prod-card,.innov-card,.case-card,.stat,.workflow-grid article,.contact-channel,.process-hub-card { background: var(--paper); border-color: var(--line); }
.card:hover,.cap-card:hover,.prod-card:hover,.innov-card:hover,.case-card:hover,.process-hub-card:hover { border-color: #454b55; }
.cat-card h3,.cat-card .more,.text-link { color: var(--ink); }
.cat-card .desc { color: var(--muted); }
.cat-grid { background: var(--line); border-color: var(--line); }
.cat-card:hover { background: var(--line-soft); }
.text-link { border-color: #454b55; }
.contact-company-block,.process-hub-card.no-image.featured,.process-carousel,.process-carousel-copy { background: var(--paper); }
.process-carousel-tabs button { background: var(--bg); color: var(--ink); }
.process-carousel-tabs button[aria-selected="true"] { background: var(--line-soft); border-color: var(--primary); }
.cta-banner { background: var(--paper); border: 1px solid var(--line); }
.form-row input,.form-row select,.form-row textarea { background: var(--paper); color: var(--ink); border-color: #363b44; }
.form-row input::placeholder,.form-row textarea::placeholder { color: #858c97; }
.spec-table th { color: var(--muted); }
footer { background: var(--bg); border-top: 1px solid var(--line); margin-top: 0; }
.factory-quality-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
.factory-image-label { position: absolute; left: 12px; bottom: 12px; padding: 6px 10px; color: #d6dbe2; background: #0d0f12c9; border: 1px solid #ffffff25; font: 11px/1.4 var(--font-sans); }
.factory-cert-grid { grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; }
.factory-cert-grid article { min-width: 0; justify-content: flex-start; }
.factory-cert-images { display: flex; gap: 8px; background: #fff; padding: 8px; }
.factory-cert-images a { flex: 1; min-width: 0; }
.factory-cert-images img { width: 100%; height: 250px; object-fit: contain; }
.factory-cert-downloads { display: flex; flex-wrap: wrap; gap: 10px; margin-top: auto; padding-top: 8px; }
.factory-cert-downloads a { color: var(--primary); font-size: 12px; }
.factory-page .timeline li::before { background: var(--paper); color: var(--primary); }
@media (max-width: 900px) { .factory-cert-grid { grid-template-columns: repeat(2,minmax(0,1fr)); } }
@media (max-width: 700px) {
  .factory-quality-layout,.factory-page .hero-grid { grid-template-columns: 1fr !important; }
  .factory-page .hero h1 { font-size: 38px !important; }
}
@media (max-width: 560px) { .factory-cert-grid { grid-template-columns: 1fr; } .factory-cert-images img { height: 300px; } }
.footer-bottom { color: var(--muted); border-color: var(--line); }
.footer-grid p,.footer-grid a { color: var(--muted); }

/* Homepage: photographic opening, compact evidence, processes, applications and quality. */
.reference-home .ref-hero { position: relative; display: grid; align-items: center; min-height: 630px; padding: 100px 0 90px; isolation: isolate; overflow: hidden; border-bottom: 1px solid var(--line); }
.ref-hero-photo { position: absolute; z-index: -2; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 55%; }
.ref-hero::after { content: ''; position: absolute; z-index: -1; inset: 0; background: linear-gradient(180deg,#0d0f1275,#0d0f12e8),linear-gradient(90deg,#0d0f1266,transparent); }
.ref-hero .container { width: 100%; }
.ref-hero .eyebrow { margin-bottom: 24px; }
.ref-hero h1 { max-width: 790px; color: var(--ink); font-size: clamp(38px,4.7vw,64px); line-height: 1.14; font-weight: 600; letter-spacing: -.035em; }
.ref-hero h1 em { color: var(--primary); font-style: normal; }
.ref-hero .lead { max-width: 620px; margin-top: 26px; color: #c8cdd4; font-size: 17px; font-weight: 400; }
.ref-hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.ref-trust { border-bottom: 1px solid var(--line); }
.ref-trust-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); }
.ref-trust-item { padding: 30px 24px; border-left: 1px solid var(--line); }
.ref-trust-item:last-child { border-right: 1px solid var(--line); }
.ref-trust-item b { display: block; font-size: 36px; font-weight: 600; line-height: 1.1; color: var(--primary); }
.ref-trust-item span { display: block; margin-top: 10px; font: 11px/1.5 var(--font-mono); letter-spacing: .08em; color: var(--muted); text-transform: uppercase; }
.ref-heading { max-width: 720px; margin-bottom: 44px; }
.ref-heading h2 { margin-top: 16px; }
.ref-heading > p { margin-top: 18px; max-width: 610px; font-size: 15px; }
.ref-section-intro { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px,5vw,68px); align-items: center; margin-bottom: 44px; }
.ref-section-intro .ref-heading { margin-bottom: 0; }
.ref-factory-photo { margin: 0; min-width: 0; border: 1px solid var(--line); background: var(--bg); }
.ref-factory-photo img { display: block; width: 100%; height: auto; aspect-ratio: 3 / 2; object-fit: cover; }
.ref-factory-photo figcaption { display: flex; align-items: center; gap: 9px; padding: 13px 16px; border-top: 1px solid var(--line); color: var(--muted); font: 11px/1.5 var(--font-mono); letter-spacing: .04em; }
.ref-photo-dot { width: 5px; height: 5px; flex: 0 0 5px; background: var(--primary); }
.ref-processes,.ref-quality { background: var(--paper); border-bottom: 1px solid var(--line); }
.ref-process-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.ref-process-card { padding: 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background .2s; }
.ref-process-card:hover { background: var(--line-soft); color: var(--ink); }
.ref-process-num { display: flex; justify-content: space-between; color: var(--primary); font: 11px/1.5 var(--font-mono); margin-bottom: 26px; }
.ref-process-card h3 { font-size: 19px; margin-bottom: 12px; }
.ref-process-card p { font-size: 14px; color: var(--muted); }
.ref-applications { border-bottom: 1px solid var(--line); }
.ref-app-table { width: 100%; border-collapse: collapse; }
.ref-app-table th { padding: 16px 20px; border-bottom: 1px solid #363b44; color: var(--muted); font: 11px/1.5 var(--font-mono); text-transform: uppercase; text-align: start; letter-spacing: .08em; }
.ref-app-table td { padding: 28px 20px; border-bottom: 1px solid var(--line); vertical-align: top; }
.ref-app-table td:first-child { width: 32%; }
.ref-app-table td:last-child { width: 27%; color: var(--muted); font-size: 13px; }
.ref-app-table a { display: flex; align-items: baseline; gap: 14px; font-size: 18px; font-weight: 600; }
.ref-app-table a > span:first-child { color: var(--primary); font: 11px var(--font-mono); }
.ref-app-table td > p { color: var(--muted); font-size: 14px; }
.ref-app-table tr:hover td { background: #e8632b06; }
.ref-qc-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); border: 1px solid var(--line); margin-bottom: 28px; }
.ref-qc-step { padding: 26px 22px; border-right: 1px solid var(--line); }
.ref-qc-step:last-child { border: 0; }
.ref-qc-step > span { display: block; color: var(--primary); font: 11px var(--font-mono); margin-bottom: 16px; }
.ref-qc-step h3 { font-size: 16px; margin-bottom: 10px; }
.ref-qc-step p { font-size: 13px; color: var(--muted); }
.ref-certs { display: flex; flex-wrap: wrap; gap: 10px; }
.ref-certs a { padding: 10px 15px; border: 1px solid #363b44; font-size: 12px; color: var(--ink-soft); }
.ref-certs a:hover { border-color: var(--primary); color: var(--primary); }
.ref-scope { margin-top: 20px; color: var(--muted); font-size: 12px; }
.ref-project { padding: 110px 0; text-align: center; }
.ref-project h2 { margin: 18px auto 20px; }
.ref-project p { max-width: 580px; margin: 0 auto; }
.ref-project .ref-hero-actions { justify-content: center; }
.reference-home .fade-up { opacity: 1; transform: none; }
@media (max-width: 900px) {
  .ref-hero { min-height: 580px; }
  .ref-process-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .ref-qc-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .ref-qc-step { border-bottom: 1px solid var(--line); }
  .ref-qc-step:nth-child(2) { border-right: 0; }
  .ref-qc-step:nth-child(3) { border-bottom: 0; }
}
@media (max-width: 600px) {
  .ref-section-intro { grid-template-columns: 1fr; gap: 26px; margin-bottom: 30px; }
  .topbar-inner { gap: 10px; }
  .nav-actions { gap: 10px; margin-left: auto; }
  .topbar .cta-start { display: none; }
  .section { padding-block: 60px; }
  .reference-home .ref-hero { min-height: 580px; padding: 72px 0 64px; }
  .ref-hero h1 { font-size: 38px; line-height: 1.18; }
  .ref-hero .lead { font-size: 15px; }
  .ref-hero .eyebrow { font-size: 10px; letter-spacing: .08em; }
  .ref-trust-grid { grid-template-columns: repeat(2,minmax(0,1fr)); padding: 0; }
  .ref-trust-item { padding: 24px 20px; border-bottom: 1px solid var(--line); }
  .ref-trust-item:nth-child(2) { border-right: 1px solid var(--line); }
  .ref-trust-item:nth-child(n+3) { border-bottom: 0; }
  .ref-trust-item b { font-size: 30px; }
  .ref-trust-item span { font-size: 10px; }
  .ref-heading { margin-bottom: 32px; }
  .ref-process-grid { grid-template-columns: 1fr; }
  .ref-process-card { padding: 24px; }
  .ref-process-num { margin-bottom: 18px; }
  .ref-app-table thead { display: none; }
  .ref-app-table,.ref-app-table tbody,.ref-app-table tr,.ref-app-table td { display: block; width: 100% !important; }
  .ref-app-table tr { padding: 24px 0; border-bottom: 1px solid var(--line); }
  .ref-app-table td { padding: 6px 0; border: 0; }
  .ref-app-table td:last-child { padding-left: 30px; }
  .ref-app-table td:nth-child(2) { padding-left: 30px; }
  .ref-app-table a { font-size: 17px; }
  .ref-qc-grid { grid-template-columns: 1fr; }
  .ref-qc-step { border-right: 0; }
  .ref-qc-step:nth-child(3) { border-bottom: 1px solid var(--line); }
  .ref-project { padding: 72px 0; }
  .ref-hero-actions .btn { padding-inline: 18px; font-size: 13px; }
}

/* Distinct framing of original factory photos, retaining the real scene. */
.factory-page .hero-visual > .factory-overview-photo { object-position: 42% 50%; }
.factory-quality-layout .shot > .factory-quality-photo { object-position: 68% 50%; }
.reference-generation-note { margin: 0 auto; padding-top: 18px; padding-bottom: 22px; color: var(--muted); font-size: 11px; border-top: 1px solid var(--line); }
#case-gallery { scroll-margin-top: 110px; }
.process-hub-card.featured > .overmolding-feature-image { height: clamp(280px,30vw,430px); object-fit: contain; background: #343437; }
@media (max-width: 700px) {
  .hero-grid[style*="grid-template-columns"] { grid-template-columns: 1fr !important; }
  .hero h1[style*="font-size"] { font-size: 36px !important; }
}