:root {
  --ink: #16222d;
  --ink-soft: #34454e;
  --muted: #66747b;
  --orange: #e9621b;
  --paper: #f3f5f4;
  --surface: #fff;
  --line: #dce2e0;
  --deep: #17282e;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { margin: 0; color: var(--ink); background: var(--surface); font: 16px/1.6 Arial, "Microsoft YaHei", sans-serif; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { display: block; max-width: 100%; }
:focus-visible { outline: 2px solid var(--orange); outline-offset: 3px; }

.preview-banner { padding: 5px 20px; background: #42505a; color: white; font-size: 11px; text-align: center; }
.utility-bar { background: var(--deep); color: #bcc9cc; font-size: 11px; }
.utility-inner { max-width: 1440px; margin: auto; padding: 7px 5vw; display: flex; justify-content: space-between; gap: 20px; }
.utility-links { display: flex; gap: 30px; }
.utility-links a { color: white; }
.site-header { height: 76px; display: flex; justify-content: space-between; align-items: center; gap: 25px; padding: 0 5vw; background: rgba(255,255,255,.97); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; }
.brand { flex: 0 0 auto; }
.brand img { width: 166px; height: auto; }
.main-nav { display: flex; align-items: center; gap: clamp(17px,2.5vw,38px); font-size: 13px; font-weight: 700; }
.main-nav a:hover, .footer-meta a:hover { color: var(--orange); }
.main-nav .nav-cta { padding: 10px 16px; border: 1px solid var(--ink); }
.nav-cta span { margin-left: 9px; color: var(--orange); }
.menu-toggle { display: none; }

.eyebrow { color: var(--orange); font-size: 11px; font-weight: 800; margin: 0 0 15px; }
.eyebrow-light { color: #ffab7e; }
h1, h2, h3, p { overflow-wrap: break-word; }
.hero { max-width: 1600px; min-height: 600px; margin: auto; padding: 45px 5vw 50px; display: grid; grid-template-columns: minmax(355px,.8fr) minmax(0,1.2fr); gap: clamp(32px,5vw,84px); align-items: center; }
.hero-copy { min-width: 0; }
.hero h1 { margin: 0; font-size: clamp(42px,4.3vw,66px); line-height: 1.18; font-weight: 800; }
.hero h1 span { color: var(--orange); }
.hero-statement { margin: 8px 0 0; font-size: clamp(24px,2.5vw,36px); font-weight: 700; line-height: 1.35; color: var(--ink); }
.hero-lede { color: var(--ink-soft); line-height: 1.9; font-size: 16px; max-width: 570px; margin: 24px 0 0; }
.hero-actions { display: flex; gap: 26px; align-items: center; flex-wrap: wrap; margin: 32px 0 38px; }
.button { display: inline-flex; gap: 30px; align-items: center; justify-content: center; padding: 13px 18px; font-size: 13px; font-weight: 800; min-height: 48px; }
.button-primary { color: white; background: var(--orange); }
.button-primary:hover { background: #c94e10; }
.button span, .text-link span { font-size: 19px; line-height: 1; }
.text-link { border-bottom: 1px solid var(--ink); padding-bottom: 4px; font-size: 13px; font-weight: 800; }
.text-link span { margin-left: 6px; color: var(--orange); }
.hero-proof { border-top: 1px solid var(--line); padding-top: 15px; display: flex; max-width: 510px; }
.hero-proof div { flex: 1; display: flex; align-items: baseline; gap: 8px; }
.hero-proof strong { color: var(--orange); font-size: 12px; }
.hero-proof span { color: var(--muted); font-size: 12px; }
.hero-visual { min-width: 0; }
.hero-image-wrap { position: relative; display: grid; place-items: center; min-height: 480px; padding: 35px 38px 76px; background: #e7eae9; overflow: hidden; }
.hero-image-wrap img { width: 100%; height: 375px; object-fit: contain; object-position: center; }
.image-index { position: absolute; top: 15px; left: 20px; font-size: 10px; font-weight: 800; color: #69777c; }
.hero-image-caption { position: absolute; left: 0; right: 0; bottom: 0; min-height: 65px; padding: 12px 22px; display: flex; gap: 14px; align-items: baseline; background: var(--deep); color: white; }
.hero-image-caption span { font-size: 9px; color: #ff9c66; font-weight: 800; }
.hero-image-caption strong { font-size: 14px; }
.hero-image-caption small { margin-left: auto; font-size: 10px; color: #b7c1c4; }
.image-disclaimer { color: #7c888d; font-size: 10px; margin: 8px 0 0; }
.signal-strip { display: grid; grid-template-columns: repeat(3,1fr); background: var(--paper); border-block: 1px solid var(--line); padding: 0 5vw; }
.signal-strip > div { min-height: 100px; display: grid; grid-template-columns: 30px 1fr; grid-template-rows: auto auto; align-content: center; gap: 0 12px; padding: 14px 28px; border-right: 1px solid var(--line); }
.signal-strip > div:first-child { border-left: 1px solid var(--line); }
.signal-number { grid-row: 1 / 3; color: var(--orange); font-size: 11px; font-weight: 800; }
.signal-strip strong { font-size: 15px; }
.signal-strip small { color: var(--muted); font-size: 11px; }

.section { padding: 86px 5vw 100px; }
.section-heading { max-width: 1440px; margin: 0 auto 34px; display: flex; justify-content: space-between; align-items: end; gap: 40px; }
.section-heading h2, .capability h2, .contact-band h2 { margin: 0; font-size: clamp(32px,3.7vw,52px); line-height: 1.22; font-weight: 800; }
.section-heading > p { margin: 0; max-width: 420px; color: var(--muted); font-size: 14px; }
.section-dark { background: var(--deep); color: white; }
.section-dark .section-heading > p { color: #b6c2c5; }
.solution-grid { max-width: 1440px; margin: auto; display: grid; grid-template-columns: 1.35fr 1fr 1fr; gap: 1px; background: #53636a; border: 1px solid #53636a; }
.solution-tile { min-height: 260px; position: relative; display: flex; flex-direction: column; padding: 28px; background: #21353c; transition: background .2s; }
.solution-tile:hover { background: #2d4349; }
.solution-featured { background: #294047; }
.solution-label { color: #ffae7f; font-size: 10px; font-weight: 800; }
.solution-tile h3 { margin: 46px 0 8px; line-height: 1.25; font-size: clamp(20px,2vw,28px); }
.solution-tile p { margin: 0; max-width: 340px; color: #c1ccce; font-size: 13px; }
.tile-arrow { margin-top: auto; align-self: end; color: #ffae7f; font-size: 22px; }

.products-section { background: #f7f8f7; }
.filter-row { max-width: 1440px; margin: 0 auto 22px; display: flex; gap: 7px; flex-wrap: wrap; }
.filter { padding: 8px 16px; border: 1px solid var(--line); color: var(--ink-soft); background: white; font-size: 12px; font-weight: 700; cursor: pointer; }
.filter.active, .filter:hover { color: white; border-color: var(--deep); background: var(--deep); }
.product-grid { max-width: 1440px; margin: auto; display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; }
.product-card { min-width: 0; display: flex; flex-direction: column; background: white; border: 1px solid var(--line); cursor: pointer; transition: border-color .2s, transform .2s; }
.product-card:hover { border-color: var(--orange); transform: translateY(-3px); }
.product-card-media { position: relative; height: 300px; display: grid; place-items: center; padding: 24px; background: #e9edec; border-bottom: 1px solid var(--line); overflow: hidden; }
.product-card-media img { position: absolute; inset: 24px; width: calc(100% - 48px); height: calc(100% - 48px); object-fit: contain; object-position: center; }
.reference-badge { position: absolute; right: 10px; bottom: 10px; padding: 3px 7px; background: rgba(255,255,255,.88); color: #687980; font-size: 10px; }
.product-card-media.is-pending { align-items: stretch; padding: 0; background: #e7ebea; }
.pending-visual { display: flex; flex-direction: column; height: 100%; padding: 22px; }
.pending-visual small { color: #687981; font-size: 10px; font-weight: 800; }
.pending-symbol { font-size: clamp(46px,6vw,86px); font-weight: 800; color: #aebbbd; line-height: 1; margin: auto 0; }
.pending-visual strong { border-top: 1px solid #bdc8c9; padding-top: 12px; color: #587078; font-size: 11px; }
.product-card-body { padding: 20px 22px 22px; display: flex; flex: 1; flex-direction: column; }
.product-card-kicker { color: var(--orange); font-size: 10px; font-weight: 800; }
.product-card h3 { margin: 7px 0 5px; font-size: 21px; line-height: 1.3; }
.product-model { color: var(--muted); font-size: 11px; }
.product-tag { margin-top: 22px; border-top: 1px solid var(--line); padding-top: 13px; display: flex; justify-content: space-between; gap: 12px; font-size: 12px; font-weight: 700; color: var(--ink-soft); }
.product-tag span { color: var(--orange); }

.applications { background: white; }
.application-grid { max-width: 1440px; margin: auto; display: grid; grid-template-columns: 1.32fr 1fr 1fr; gap: 18px; }
.application { border-top: 2px solid var(--ink); min-width: 0; }
.application-image { position: relative; height: 280px; display: grid; place-items: center; background: #e7ebea; overflow: hidden; }
.application-image img { position: absolute; inset: 14px; width: calc(100% - 28px); height: calc(100% - 28px); object-fit: contain; }
.application-wide .application-image { height: 380px; }
.application-graphic { display: flex; justify-content: center; gap: 8px; position: relative; color: #2d444d; }
.application-graphic span { display: grid; place-items: center; width: 28%; height: 90px; border: 1px solid #aebcbe; font-size: clamp(24px,2.8vw,42px); font-weight: 800; }
.application-graphic small { position: absolute; bottom: 18px; left: 18px; color: #697b82; font-size: 9px; font-weight: 800; }
.application-copy { padding: 18px 0 0; }
.application-copy span { color: var(--orange); font-size: 10px; font-weight: 800; }
.application-copy h3 { margin: 7px 0 5px; font-size: 22px; line-height: 1.3; }
.application-copy p { margin: 0; color: var(--muted); font-size: 13px; }

.capability { display: grid; grid-template-columns: 1fr 1fr; gap: 8vw; background: var(--paper); }
.capability-intro { max-width: 580px; }
.capability h2 span { color: var(--orange); }
.capability-intro > p:last-child { color: var(--muted); max-width: 500px; font-size: 14px; margin-top: 24px; }
.capability-list { border-top: 1px solid #cbd5d3; }
.capability-item { display: grid; grid-template-columns: 34px 1fr; gap: 16px; padding: 20px 0; border-bottom: 1px solid #cbd5d3; }
.capability-item > span { color: var(--orange); font-size: 11px; font-weight: 800; }
.capability-item h3 { margin: 0 0 4px; font-size: 19px; }
.capability-item p { margin: 0; color: var(--muted); font-size: 13px; }
.download-list { max-width: 1440px; margin: auto; border-top: 1px solid var(--line); }
.download-row { display: grid; grid-template-columns: 50px minmax(0,1.4fr) minmax(0,.8fr) 25px; align-items: center; gap: 20px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.download-row:hover strong { color: var(--orange); }
.file-type { color: var(--orange); font-size: 11px; font-weight: 800; }
.download-row strong { font-size: 14px; }
.download-row small { color: var(--muted); font-size: 11px; }
.download-row > span:last-child { text-align: right; font-size: 20px; }

.contact-band { display: grid; grid-template-columns: 1.2fr .8fr; gap: 8vw; padding: 75px 5vw; color: white; background: var(--deep); }
.contact-intro p:last-child { max-width: 620px; color: #bdc9cb; margin-bottom: 0; font-size: 14px; }
.contact-card { align-self: stretch; padding: 26px 30px; border-top: 3px solid var(--orange); background: #263b42; display: flex; flex-direction: column; justify-content: center; gap: 10px; }
.contact-card-label { color: #ffad7e; font-size: 10px; font-weight: 800; }
.contact-card address { font-size: 16px; font-style: normal; }
.contact-phone { display: flex; align-items: center; justify-content: space-between; gap: 20px; font-size: clamp(24px,2.8vw,37px); font-weight: 800; line-height: 1.25; }
.contact-phone:hover { color: #ffad7e; }
.contact-phone span { color: var(--orange); }
.contact-card small { color: #a8b9bc; font-size: 11px; }
.site-footer { padding: 35px 5vw; background: #101e24; color: white; display: grid; grid-template-columns: 1fr 1fr auto; gap: 35px; align-items: end; }
.footer-brand img { width: 128px; filter: brightness(0) invert(1); }
.footer-brand p { margin: 10px 0 0; color: #98a8ae; font-size: 11px; }
.footer-address, .footer-meta { display: flex; flex-direction: column; gap: 5px; color: #a8b8bd; font-size: 11px; }
.footer-address a { color: white; }

.modal { display: none; position: fixed; inset: 0; z-index: 50; overflow-y: auto; }
.modal.open { display: block; }
.modal-backdrop { position: fixed; inset: 0; background: rgba(8,17,21,.76); }
.modal-panel { position: relative; max-width: 1000px; margin: 5vh auto; display: grid; grid-template-columns: .95fr 1.05fr; background: white; box-shadow: 0 20px 55px rgba(0,0,0,.22); }
.modal-close { position: absolute; z-index: 2; right: 13px; top: 8px; color: var(--ink); background: white; border: 0; width: 42px; height: 42px; font-size: 30px; line-height: 1; cursor: pointer; }
.modal-image { position: relative; min-height: 520px; padding: 28px; display: grid; place-items: center; background: #e7ebea; }
.modal-image img { position: absolute; inset: 28px; width: calc(100% - 56px); height: calc(100% - 56px); object-fit: contain; }
.modal-image.is-pending img { display: none; }
.modal-image.is-pending::after { content: "产品实物图待技术确认"; color: #587078; font-size: 15px; font-weight: 800; }
.modal-content { padding: 55px 43px; }
.modal-content h2 { margin: 0 0 8px; font-size: 34px; line-height: 1.25; }
.modal-model { margin: 0 0 22px; color: var(--orange); font-size: 13px; font-weight: 800; }
.modal-content > p:not(.eyebrow):not(.modal-model):not(.source-note) { color: var(--muted); font-size: 14px; }
.modal-specs { margin-top: 25px; border-top: 1px solid var(--line); }
.spec-row { display: grid; grid-template-columns: minmax(90px,1fr) 1.5fr; gap: 15px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 12px; }
.spec-row span { color: var(--muted); }
.source-note { margin-top: 25px; font-size: 11px; color: #75848a; }

@media (max-width: 1100px) {
  .hero { grid-template-columns: minmax(310px,.85fr) minmax(0,1.15fr); gap: 30px; }
  .hero-image-wrap { min-height: 400px; padding: 30px 22px 70px; }
  .hero-image-wrap img { height: 300px; }
  .hero-image-caption small { display: none; }
  .solution-grid { grid-template-columns: repeat(3,1fr); }
  .solution-tile { padding: 22px; }
}
@media (max-width: 840px) {
  .utility-bar { display: none; }
  .site-header { height: 68px; }
  .brand img { width: 145px; }
  .menu-toggle { display: flex; width: 42px; height: 42px; border: 1px solid var(--line); background: white; flex-direction: column; align-items: center; justify-content: center; gap: 5px; cursor: pointer; }
  .menu-toggle span { display: block; width: 18px; height: 2px; background: var(--ink); }
  .main-nav { display: none; position: absolute; top: 68px; left: 0; right: 0; padding: 15px 5vw 22px; background: white; border-bottom: 1px solid var(--line); box-shadow: 0 18px 30px rgba(0,0,0,.09); flex-direction: column; align-items: stretch; gap: 0; }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 11px 0; }
  .main-nav .nav-cta { margin-top: 10px; padding: 10px 15px; text-align: center; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding: 48px 5vw 55px; }
  .hero h1 { font-size: clamp(38px,7vw,58px); }
  .hero-image-wrap { min-height: 450px; }
  .hero-image-wrap img { height: 355px; }
  .section-heading { align-items: start; }
  .solution-grid { grid-template-columns: 1fr 1fr; }
  .solution-featured { grid-column: 1/-1; }
  .solution-tile { min-height: 225px; }
  .solution-tile h3 { margin-top: 30px; }
  .product-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .application-grid { grid-template-columns: 1fr 1fr; }
  .application-wide { grid-column: 1/-1; display: grid; grid-template-columns: 1fr 1fr; gap: 25px; }
  .application-wide .application-image { height: 300px; }
  .application-wide .application-copy { align-self: center; }
  .capability { gap: 5vw; }
}
@media (max-width: 620px) {
  .preview-banner { font-size: 10px; padding: 5px 10px; line-height: 1.35; }
  .hero { padding: 36px 5vw 45px; gap: 28px; }
  .hero h1 { font-size: 38px; }
  .hero-statement { font-size: 22px; }
  .hero-lede { font-size: 14px; margin-top: 18px; }
  .hero-actions { margin: 24px 0 25px; gap: 18px; }
  .hero-proof { gap: 5px; }
  .hero-proof div { display: block; }
  .hero-proof strong, .hero-proof span { display: block; }
  .hero-image-wrap { min-height: 0; padding: 31px 12px 65px; }
  .hero-image-wrap img { height: auto; max-height: 320px; aspect-ratio: 1/1; }
  .hero-image-caption { min-height: 60px; padding: 8px 13px; display: grid; gap: 0; }
  .hero-image-caption strong { font-size: 12px; }
  .image-index { font-size: 8px; }
  .signal-strip { display: block; padding: 0 5vw; }
  .signal-strip > div, .signal-strip > div:first-child { min-height: 78px; padding: 10px 4px; border-left: 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .signal-strip > div:last-child { border-bottom: 0; }
  .section { padding: 64px 5vw 70px; }
  .section-heading { display: block; margin-bottom: 26px; }
  .section-heading h2, .capability h2, .contact-band h2 { font-size: 34px; }
  .section-heading > p { margin-top: 16px; font-size: 13px; }
  .solution-grid, .product-grid, .application-grid { grid-template-columns: 1fr; }
  .solution-featured, .application-wide { grid-column: auto; }
  .solution-tile { min-height: 190px; }
  .solution-tile h3 { margin-top: 23px; font-size: 22px; }
  .product-card-media { height: 320px; }
  .application-wide { display: block; }
  .application-wide .application-image { height: 340px; }
  .application-image { height: 250px; }
  .application { margin-bottom: 20px; }
  .capability, .contact-band { grid-template-columns: 1fr; gap: 30px; }
  .download-row { grid-template-columns: 42px minmax(0,1fr) 20px; gap: 10px; }
  .download-row small { display: none; }
  .download-row strong { font-size: 12px; }
  .contact-band { padding: 62px 5vw; }
  .contact-card { padding: 25px 20px; }
  .site-footer { grid-template-columns: 1fr; gap: 25px; }
  .modal-panel { display: block; margin: 0; min-height: 100vh; }
  .modal-image { min-height: 0; height: 280px; padding: 15px; }
  .modal-image img { inset: 15px; width: calc(100% - 30px); height: calc(100% - 30px); }
  .modal-content { padding: 28px 6vw 50px; }
  .modal-content h2 { font-size: 28px; }
}