:root {
  --navy: #0A2E5C;
  --sea: #1A6FB5;
  --ice: #E8F1F8;
  --ink: #142436;
  --muted: #607286;
  --line: #D9E3EC;
  --surface: #FFFFFF;
  --surface-alt: #F5F8FB;
  --success: #18794E;
  --shadow: 0 12px 36px rgba(10, 46, 92, 0.1);
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--surface); font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; line-height: 1.7; letter-spacing: 0; }
body.lightbox-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
svg { width: 1.15em; height: 1.15em; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
:focus-visible { outline: 3px solid rgba(26, 111, 181, 0.4); outline-offset: 3px; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.narrow { max-width: 920px; }
.section { padding: 92px 0; }
.eyebrow, .section-heading > p, .detail-heading > p { margin: 0 0 10px; color: var(--sea); font-size: 0.75rem; font-weight: 800; letter-spacing: 0.14em; }
.section-heading { max-width: 720px; margin-bottom: 36px; }
.section-heading h2, .detail-heading h2 { margin: 0 0 12px; color: var(--navy); font-size: clamp(1.75rem, 3vw, 2.45rem); line-height: 1.25; letter-spacing: 0; }
.section-heading > span { color: var(--muted); }

.site-header { position: sticky; z-index: 30; top: 0; height: 72px; background: rgba(255, 255, 255, 0.97); border-bottom: 1px solid rgba(217, 227, 236, 0.9); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.lang-btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-width: 58px; height: 34px; padding: 0 10px; color: var(--navy); background: #E8F1F8; border: 1px solid #BCD4E7; border-radius: 4px; cursor: pointer; font: inherit; font-size: 0.76rem; font-weight: 800; }
.lang-btn svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.7; }
.lang-btn:hover { color: white; background: var(--sea); border-color: var(--sea); }
.lang-btn:focus-visible { outline: 3px solid rgba(26, 111, 181, 0.32); outline-offset: 3px; }
html[lang="en"] .site-nav { gap: 18px; }
html[lang="en"] .product-en, html[lang="en"] .detail-en, html[lang="en"] .related-card > small, html[lang="en"] .parameter-table th small { display: none; }
.brand { display: inline-flex; align-items: center; min-width: max-content; }
.brand-lockup { display: block; width: 190px; height: auto; aspect-ratio: 640 / 176; object-fit: contain; }
.site-nav { display: flex; align-items: center; gap: 26px; font-size: 0.9rem; font-weight: 600; }
.site-nav a { padding: 8px 0; color: #31465B; }
.site-nav a:hover { color: var(--sea); }
.site-nav .nav-cta { padding: 9px 16px; color: white; background: var(--navy); border-radius: 4px; }
.icon-button { display: grid; place-items: center; width: 42px; height: 42px; padding: 0; background: transparent; border: 0; cursor: pointer; }
.menu-toggle { display: none; }

.home-hero { position: relative; min-height: calc(100svh - 72px); overflow: hidden; background: var(--navy); }
.hero-slides, .hero-slide { position: absolute; inset: 0; }
.hero-slide { z-index: 1; overflow: hidden; visibility: hidden; opacity: 0; pointer-events: none; transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1); }
.hero-slide::after { content: ''; position: absolute; z-index: 1; inset: 0; background: linear-gradient(90deg, rgba(10, 46, 92, 0.88) 0%, rgba(10, 46, 92, 0.66) 38%, rgba(10, 46, 92, 0.32) 62%, transparent 100%); }
.hero-background { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transform: scale(1.05); transition: transform 6s ease; }
.hero-slide.active { z-index: 2; visibility: visible; opacity: 1; pointer-events: auto; }
.hero-slide.active .hero-background { transform: scale(1); }
.hero-slide.is-leaving { z-index: 1; visibility: visible; opacity: 0; }
.hero-slide.is-leaving .hero-content { visibility: hidden; }
.hero-slide-inner { position: relative; z-index: 2; display: flex; align-items: center; min-height: calc(100svh - 72px); padding-top: 56px; padding-bottom: 118px; }
.hero-content { width: min(600px, 55%); min-width: 0; color: white; text-shadow: 0 2px 18px rgba(0, 20, 42, 0.22); }
.hero-kicker { display: flex; align-items: center; gap: 10px; margin: 0 0 21px; color: #D5E9FA; font-size: 0.82rem; font-weight: 800; }
.hero-kicker > span:first-child { flex: 0 0 28px; width: 28px; height: 2px; background: #65B7E8; }
.hero-content h1 { margin: 0; max-width: 720px; font-size: 3.35rem; line-height: 1.16; letter-spacing: 0; }
html[lang="zh-CN"] .hero-content h1 { white-space: pre-line; }
.hero-content h1 span { color: #8ED4FF; }
.hero-copy { max-width: 650px; margin: 22px 0 0; color: #E3EDF6; font-size: 1rem; line-height: 1.75; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 46px; padding: 10px 20px; border: 1px solid transparent; border-radius: 5px; cursor: pointer; font-weight: 700; line-height: 1.2; }
.btn-primary { color: white; background: var(--sea); }
.btn-primary:hover { background: #155E98; }
.btn-ghost { color: white; background: transparent; border-color: rgba(255, 255, 255, 0.55); }
.btn-secondary { color: var(--navy); background: white; border-color: var(--line); }
.btn-light { color: var(--navy); background: white; }
.hero-stats { display: flex; gap: 0; margin: 42px 0 0; }
.hero-stats div { min-width: 128px; padding-right: 26px; border-right: 1px solid rgba(255, 255, 255, 0.25); }
.hero-stats div + div { padding-left: 26px; }
.hero-stats dt { font-size: 1.48rem; font-weight: 800; line-height: 1.2; }
.hero-stats dd { margin: 6px 0 0; color: #C8D8E8; font-size: 0.76rem; }
.hero-control { position: absolute; z-index: 5; top: 50%; display: grid; place-items: center; width: 44px; height: 44px; padding: 0; color: white; background: rgba(4, 24, 45, 0.34); border: 1px solid rgba(255, 255, 255, 0.32); border-radius: 50%; cursor: pointer; transform: translateY(-50%); backdrop-filter: blur(5px); }
.hero-control:hover { background: rgba(4, 24, 45, 0.68); }
.hero-control svg { width: 20px; height: 20px; }
.hero-control-prev { left: 22px; }
.hero-control-next { right: 22px; }
.hero-indicators { position: absolute; z-index: 6; bottom: 34px; left: 50%; display: flex; gap: 9px; transform: translateX(-50%); }
.hero-indicators button { width: 9px; height: 9px; padding: 0; background: rgba(255, 255, 255, 0.48); border: 0; border-radius: 5px; cursor: pointer; transition: width 0.3s ease, background 0.3s ease; }
.hero-indicators button.active { width: 30px; background: #8ED4FF; }
.hero-scroll { position: absolute; z-index: 6; bottom: 62px; left: 50%; display: grid; place-items: center; width: 38px; height: 38px; color: white; border: 1px solid rgba(255, 255, 255, 0.54); border-radius: 50%; transform: translateX(-50%); animation: heroScroll 1.8s ease-in-out infinite; }
.hero-scroll svg { width: 18px; height: 18px; }
.hero-wave { position: absolute; z-index: 5; right: 0; bottom: 0; left: 0; height: 24px; pointer-events: none; }
.hero-wave svg { display: block; width: 100%; height: 100%; }
.hero-slide.active .hero-kicker, .hero-slide.active .hero-content h1, .hero-slide.active .hero-copy, .hero-slide.active .hero-actions, .hero-slide.active .hero-stats { animation: heroReveal 0.65s both; }
.hero-slide.active .hero-kicker { animation-delay: 0.1s; }
.hero-slide.active .hero-content h1 { animation-delay: 0.2s; }
.hero-slide.active .hero-copy { animation-delay: 0.3s; }
.hero-slide.active .hero-actions { animation-delay: 0.4s; }
.hero-slide.active .hero-stats { animation-delay: 0.5s; }
@keyframes heroReveal { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }
@keyframes heroScroll { 0%, 100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 7px); } }

.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.capability-grid article { padding: 30px 24px; border-right: 1px solid var(--line); }
.capability-grid article:first-child { padding-left: 0; }
.capability-grid article:last-child { border-right: 0; }
.feature-icon { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 20px; color: var(--sea); background: var(--ice); border-radius: 5px; font-size: 1.3rem; }
.capability-grid h3 { margin: 0 0 8px; color: var(--navy); font-size: 1.02rem; }
.capability-grid p { margin: 0; color: var(--muted); font-size: 0.9rem; }

.products-section { background: var(--surface-alt); }
.filter-bar { display: flex; gap: 8px; margin-bottom: 28px; overflow-x: auto; scrollbar-width: thin; }
.filter-button { flex: 0 0 auto; padding: 9px 16px; color: #52677B; background: white; border: 1px solid var(--line); border-radius: 4px; cursor: pointer; font-size: 0.88rem; font-weight: 700; }
.filter-button.active, .filter-button:hover { color: white; background: var(--navy); border-color: var(--navy); }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.product-card { min-width: 0; overflow: hidden; background: white; border: 1px solid #E0E8EF; border-radius: 6px; transition: box-shadow 0.25s ease, transform 0.25s ease; }
.product-card[hidden] { display: none; }
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.product-image { position: relative; width: 100%; height: 200px; overflow: hidden; background: #fff; }
.product-image img { width: 100%; height: 100%; padding: 14px; object-fit: contain; object-position: center; }
.series-badge { position: absolute; z-index: 1; top: 12px; left: 12px; padding: 4px 9px; color: white; background: rgba(10, 46, 92, 0.88); border-radius: 3px; font-size: 0.7rem; font-weight: 700; }
.product-card-body { padding: 20px; }
.product-en { min-height: 2.8em; margin: 0 0 3px; color: var(--sea) !important; font-size: 0.72rem !important; font-weight: 700; text-transform: uppercase; }
.product-card h3 { margin: 0 0 9px; color: var(--navy); font-size: 1.08rem; }
.product-card-body > p { margin: 0; color: var(--muted); font-size: 0.86rem; }
.product-tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 16px 0; }
.product-tags span, .quick-specs span { padding: 4px 8px; color: #38546E; background: var(--ice); border-radius: 3px; font-size: 0.72rem; font-weight: 700; }
.text-link { display: inline-flex; align-items: center; gap: 7px; color: var(--sea); font-size: 0.83rem; font-weight: 800; }
.empty-state { padding: 30px; text-align: center; color: var(--muted); }

.about-layout { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 80px; align-items: start; }
.about-copy h2, .service-copy h2, .contact-copy h2, .application-layout h2 { margin: 0 0 22px; color: var(--navy); font-size: clamp(1.7rem, 3vw, 2.35rem); line-height: 1.35; }
.about-copy > p:not(.eyebrow) { color: var(--muted); }
.values-list { margin: 0; border-top: 1px solid var(--line); }
.values-list div { display: grid; grid-template-columns: 100px 1fr; gap: 20px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.values-list dt { color: var(--sea); font-size: 0.8rem; font-weight: 800; }
.values-list dd { margin: 0; color: var(--navy); font-weight: 700; }
.company-intro-section { background: #F7FAFC; }
.company-intro-layout { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 70px; align-items: start; }
.company-intro-layout h2, .factory-section h2 { margin: 0 0 18px; color: var(--navy); font-size: clamp(1.8rem, 3vw, 2.5rem); line-height: 1.3; }
.company-intro-layout p { color: var(--muted); }
.company-gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 28px; }
.company-gallery img { width: 100%; height: 176px; object-fit: cover; border-radius: 5px; border: 1px solid var(--line); }
.company-facts { align-self: center; display: grid; grid-template-columns: 1fr 1fr; padding: 8px 0; border-top: 1px solid var(--line); }
.company-facts .values-list { grid-column: 1 / -1; margin-bottom: 8px; }
.company-facts .values-list div { grid-template-columns: minmax(104px, 0.35fr) 1fr; }
.company-facts div { min-height: 92px; padding: 24px 0 20px; border-bottom: 1px solid var(--line); }
.company-facts div:nth-child(odd) { margin-right: 28px; }
.company-facts strong, .company-facts span { display: block; }
.company-facts strong { color: var(--sea); font-size: 1.05rem; }
.company-facts span { margin-top: 4px; color: var(--muted); font-size: 0.8rem; }
.factory-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 26px; align-items: stretch; }
.factory-feature { min-height: 100%; overflow: hidden; border-radius: 6px; border: 1px solid var(--line); background: white; }
.factory-feature img { width: 100%; height: 100%; min-height: 360px; object-fit: cover; }
.factory-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.factory-grid article { padding: 24px; background: white; border: 1px solid var(--line); border-radius: 6px; }
.factory-number { color: var(--sea); font-size: 0.75rem; font-weight: 900; letter-spacing: 0.1em; }
.factory-grid h3 { margin: 26px 0 8px; color: var(--navy); font-size: 1.05rem; }
.factory-grid p { margin: 0; color: var(--muted); font-size: 0.86rem; }

.design-capability-section { background: #F4F7FA; }
.design-capability-layout { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 52px; align-items: center; }
.design-capability-copy h2 { margin: 0 0 18px; color: var(--navy); font-size: clamp(1.8rem, 3vw, 2.55rem); line-height: 1.3; }
.design-highlight { color: #0A2E5C; }
.design-intro { margin: 0 0 28px; color: var(--muted); }
.design-points { display: grid; gap: 16px; }
.design-points article { display: grid; grid-template-columns: 42px 1fr; gap: 14px; align-items: start; }
.design-point-icon { display: grid; place-items: center; width: 38px; height: 38px; color: var(--sea); background: #E8F1F8; border-radius: 5px; }
.design-point-icon svg { width: 21px; height: 21px; }
.design-points h3 { margin: 0 0 3px; color: var(--navy); font-size: 0.98rem; }
.design-points p { margin: 0; color: var(--muted); font-size: 0.86rem; line-height: 1.65; }
.design-carousel { min-width: 0; padding: 14px; background: white; border: 1px solid #D7E2EC; border-radius: 14px; box-shadow: 0 12px 30px rgba(10, 46, 92, 0.08); }
.design-carousel-viewport { position: relative; height: 390px; overflow: hidden; background: linear-gradient(135deg, #FBFDFF, #EEF4FA); border-radius: 9px; }
html[lang="zh-CN"] .design-carousel-viewport { height: 430px; }
.design-carousel-slide { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; box-sizing: border-box; padding: 18px 20px 66px; opacity: 0; transform: translateX(20px); transition: opacity 0.45s ease, transform 0.45s ease; pointer-events: none; }
.design-carousel-slide.active { opacity: 1; transform: translateX(0); pointer-events: auto; }
.design-carousel-slide img { position: static; width: 88%; height: auto; max-width: 100%; max-height: 100%; object-fit: contain; }
.design-carousel-caption { position: absolute; z-index: 2; right: 20px; bottom: 16px; left: 20px; display: flex; align-items: baseline; justify-content: space-between; gap: 12px; color: var(--navy); }
.design-carousel-caption strong { font-size: 1rem; }
.design-carousel-caption span { color: var(--muted); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; }
.design-carousel-arrow { position: absolute; z-index: 2; top: 50%; display: grid; place-items: center; width: 36px; height: 36px; padding: 0; color: var(--navy); background: rgba(255, 255, 255, 0.9); border: 1px solid #D7E2EC; border-radius: 50%; cursor: pointer; transform: translateY(-50%); box-shadow: 0 5px 15px rgba(10, 46, 92, 0.12); }
.design-carousel-arrow:hover { color: white; background: var(--sea); border-color: var(--sea); }
.design-carousel-arrow svg { width: 17px; height: 17px; }
.design-carousel-prev { left: 14px; transform: translateY(-50%) rotate(180deg); }
.design-carousel-next { right: 14px; }
.design-carousel-footer { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 13px 4px 2px; color: var(--sea); font-size: 0.68rem; font-weight: 800; letter-spacing: 0.12em; }
.design-carousel-dots { display: flex; gap: 7px; }
.design-carousel-dots button { width: 8px; height: 8px; padding: 0; background: #C7D5E2; border: 0; border-radius: 50%; cursor: pointer; }
.design-carousel-dots button.active { width: 24px; background: var(--sea); border-radius: 4px; }

.certificate-section { background: var(--navy); }
.certificate-section .section-heading h2 { color: white; }
.certificate-section .section-heading > span { color: #B9CBE0; }
.certification-strip { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 18px; }
.cert-filter { padding: 7px 14px; color: #D5EBFA; background: transparent; border: 1px solid rgba(213, 235, 250, 0.28); border-radius: 3px; cursor: pointer; font-size: 0.75rem; font-weight: 800; white-space: nowrap; }
.cert-filter.active, .cert-filter:hover { color: var(--navy); background: white; border-color: white; }
.certificate-track { overflow-x: auto; padding-bottom: 12px; scrollbar-width: thin; }
.certificate-empty-state { min-height: 220px; padding: 90px 24px; color: #D5EBFA; text-align: center; border: 1px solid rgba(213, 235, 250, 0.28); }
.certificate-grid { display: flex; gap: 18px; width: max-content; }
.certificate-card { flex: 0 0 245px; width: 245px; padding: 0; overflow: hidden; text-align: left; background: white; border: 0; border-radius: 6px; cursor: pointer; transition: transform 0.25s ease, box-shadow 0.25s ease; scroll-snap-align: start; }
.certificate-card:hover { transform: translateY(-4px); box-shadow: 0 16px 35px rgba(0, 0, 0, 0.2); }
.certificate-media { display: block; width: 100%; height: 220px; padding: 14px; background: #f8f9fa; }
.certificate-image { width: 100%; height: 100%; object-fit: contain; }
.certificate-name { display: block; padding: 15px 17px; color: var(--navy); font-size: 0.88rem; font-weight: 800; }
.certificate-proof { min-height: 220px; padding: 26px; cursor: default; background: #F8FBFD; border: 1px solid rgba(213, 235, 250, 0.45); }
.proof-mark { display: grid; place-items: center; width: 66px; height: 66px; margin-bottom: 48px; color: white; background: var(--sea); border-radius: 50%; font-size: 0.82rem; font-weight: 900; }
.lightbox { position: fixed; z-index: 100; inset: 0; display: grid; place-items: center; padding: 60px 24px 24px; background: rgba(3, 15, 29, 0.91); }
.lightbox[hidden] { display: none; }
.lightbox img { max-width: min(100%, 960px); max-height: calc(100vh - 90px); object-fit: contain; background: white; }
.lightbox-close { position: fixed; top: 14px; right: 18px; color: white; font-size: 1.4rem; }

.service-section { background: var(--surface-alt); }
.service-layout { display: grid; grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr); gap: 48px; align-items: center; }
.service-map { width: 100%; max-width: 560px; min-height: 340px; justify-self: center; overflow: hidden; background: transparent; }
.service-map img { width: 100%; min-height: 340px; object-fit: cover; -webkit-mask-image: linear-gradient(to right, transparent 0, #000 9%, #000 91%, transparent 100%), linear-gradient(to bottom, transparent 0, #000 9%, #000 91%, transparent 100%); -webkit-mask-composite: source-in; mask-image: linear-gradient(to right, transparent 0, #000 9%, #000 91%, transparent 100%), linear-gradient(to bottom, transparent 0, #000 9%, #000 91%, transparent 100%); mask-composite: intersect; }
.service-copy > p:not(.eyebrow) { color: var(--muted); }
.service-copy ul { margin: 28px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.service-copy li { display: block; padding: 13px 0; border-bottom: 1px solid var(--line); }
.service-copy strong { display: block; margin-bottom: 4px; color: var(--sea); }
.service-copy span { display: block; color: #465C71; }

.contact-section { background: white; }
.contact-layout { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 80px; align-items: start; }
.contact-copy > p:not(.eyebrow) { color: var(--muted); }
.contact-copy address { display: flex; flex-direction: column; gap: 10px; margin-top: 28px; color: #3B5268; font-style: normal; }
.inquiry-form { padding-left: 48px; border-left: 1px solid var(--line); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.inquiry-form label { display: flex; flex-direction: column; gap: 7px; margin-bottom: 18px; color: #324A61; font-size: 0.84rem; font-weight: 700; }
.inquiry-form input, .inquiry-form select, .inquiry-form textarea { width: 100%; padding: 11px 12px; color: var(--ink); background: #FBFCFD; border: 1px solid #CCD8E3; border-radius: 4px; font-weight: 400; }
.inquiry-form textarea { resize: vertical; }
.form-status { min-height: 1.7em; margin: 12px 0 0; color: var(--success); font-size: 0.86rem; font-weight: 700; }

.site-footer { padding-top: 56px; color: #C0CDDA; background: #071F3B; }
.site-footer .brand strong { color: white; }
.site-footer .brand small { color: #8FA5BA; }
.site-footer .brand-mark { background: var(--sea); }
.footer-grid { display: grid; grid-template-columns: 1.7fr 0.8fr 1fr; gap: 70px; padding-bottom: 45px; }
.footer-grid h2 { margin: 0 0 16px; color: white; font-size: 0.9rem; }
.footer-grid > div:not(.footer-about) { display: flex; flex-direction: column; gap: 7px; }
.footer-grid a:hover { color: white; }
.footer-grid p { margin: 9px 0 0; font-size: 0.83rem; }
.footer-about p { max-width: 420px; margin-top: 18px; }
.footer-brand-text strong, .footer-brand-text small { display: block; }
.footer-brand-text strong { color: white; font-size: 1.08rem; }
.footer-brand-text small { margin-top: 3px; color: #9FB5CA; font-size: 0.67rem; font-weight: 700; letter-spacing: 0.08em; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 18px; padding-bottom: 18px; border-top: 1px solid rgba(255, 255, 255, 0.12); font-size: 0.74rem; }

.breadcrumb { display: flex; align-items: center; gap: 9px; min-height: 58px; color: var(--muted); font-size: 0.8rem; overflow-x: auto; white-space: nowrap; }
.breadcrumb a:hover { color: var(--sea); }
.breadcrumb strong { color: var(--navy); }
.detail-hero { padding: 54px 0 70px; background: var(--ice); border-top: 1px solid #D7E5F0; }
.detail-hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 66px; align-items: center; }
.detail-media { min-height: 430px; display: grid; place-items: center; overflow: hidden; background: #F0F4F8; border: 1px solid #D7E1EA; }
.detail-media img { width: 100%; height: 430px; object-fit: contain; }
.series-label { display: inline-block; margin: 0 0 14px; padding: 5px 10px; color: var(--sea); background: white; border: 1px solid #C8DAE9; border-radius: 3px; font-size: 0.74rem; font-weight: 800; }
.detail-en { margin: 0 0 5px; color: var(--sea); font-size: 0.8rem; font-weight: 700; text-transform: uppercase; }
.detail-intro h1 { margin: 0; color: var(--navy); font-size: clamp(2rem, 4vw, 3.25rem); line-height: 1.16; }
.detail-summary { margin: 20px 0; color: #52697F; font-size: 1rem; }
.quick-specs { display: flex; flex-wrap: wrap; gap: 7px; }
.detail-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.detail-heading { margin-bottom: 25px; }
.function-description { margin: 0; color: #40566C; font-size: 1rem; line-height: 2; }
.parameter-section { background: var(--surface-alt); }
.table-shell { overflow: hidden; background: white; border: 1px solid var(--line); }
.parameter-table { width: 100%; border-collapse: collapse; }
.parameter-table th, .parameter-table td { padding: 17px 20px; text-align: left; border-bottom: 1px solid var(--line); }
.parameter-table tr:last-child th, .parameter-table tr:last-child td { border-bottom: 0; }
.parameter-table th { width: 44%; color: var(--navy); background: #F9FBFC; }
.parameter-table th span, .parameter-table th small { display: block; }
.parameter-table th small { margin-top: 2px; color: #8092A3; font-size: 0.68rem; font-weight: 600; }
.parameter-table td { color: #324B63; font-weight: 700; }
.parameter-table td::before { content: none; }
.parameter-note { margin: 15px 0 0; color: #778A9D; font-size: 0.78rem; }
.application-section { color: white; background: var(--navy); }
.application-layout { display: grid; grid-template-columns: 0.7fr 1.3fr; gap: 80px; align-items: center; }
.application-layout h2 { margin-bottom: 0; color: white; }
.application-copy { margin: 0; color: #D5E0EB; font-size: 1.05rem; }
.related-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.related-card { min-width: 0; padding-bottom: 18px; border-bottom: 2px solid var(--line); }
.related-card:hover { border-color: var(--sea); }
.related-image { display: block; height: 160px; margin-bottom: 15px; overflow: hidden; background: #F0F4F8; }
.related-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.related-card:hover .related-image img { transform: scale(1.04); }
.related-series { display: block; color: var(--sea); font-size: 0.68rem; font-weight: 800; }
.related-card strong, .related-card small { display: block; }
.related-card strong { margin: 3px 0; color: var(--navy); }
.related-card small { min-height: 2.7em; color: var(--muted); font-size: 0.7rem; line-height: 1.35; }
.related-card .text-link { margin-top: 12px; }
.back-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 34px; color: var(--sea); font-weight: 800; }
.detail-cta { padding: 48px 0; color: white; background: var(--sea); }
.detail-cta .container { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.detail-cta p { margin: 0 0 4px; color: #D7EEFC; font-size: 0.7rem; font-weight: 800; letter-spacing: 0.12em; }
.detail-cta h2 { margin: 0 0 4px; font-size: 1.65rem; }
.detail-cta span { color: #E2F1FA; }
.detail-cta .btn-light span { color: rgb(192, 205, 218); }

@media (min-width: 768px) and (max-width: 1024px) {
  .hero-slide::after { background: linear-gradient(90deg, rgba(10, 46, 92, 0.9) 0%, rgba(10, 46, 92, 0.7) 55%, rgba(10, 46, 92, 0.35) 75%, transparent 100%); }
  .hero-content { width: 70%; }
  .hero-content h1 { font-size: 3rem; }
  .hero-control { display: none; }
}

@media (max-width: 980px) {
  .site-nav { position: fixed; top: 72px; right: 0; left: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 14px 20px 22px; background: white; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 11px 0; }
  .site-nav .nav-cta { margin-top: 7px; padding: 11px 14px; text-align: center; }
  .menu-toggle { display: grid; }
  .capability-grid { grid-template-columns: 1fr 1fr; }
  .capability-grid article:nth-child(2) { border-right: 0; }
  .capability-grid article:first-child { padding-left: 24px; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .about-layout, .service-layout, .contact-layout, .detail-hero-grid { grid-template-columns: 1fr; gap: 42px; }
  .company-intro-layout { grid-template-columns: 1fr; gap: 36px; }
  .company-facts { align-self: stretch; }
  .company-gallery { grid-template-columns: 1fr 1fr; }
  .company-gallery img { height: 150px; }
  .factory-layout { grid-template-columns: 1fr; }
  .factory-feature img { height: 260px; min-height: 0; }
  .factory-grid { grid-template-columns: 1fr 1fr; }
  .inquiry-form { padding-left: 0; border-left: 0; }
  .detail-media { min-height: 380px; }
  .detail-media img { height: 380px; }
  .related-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
  .brand-lockup { width: 150px; }
  .hero-slide::after { background: rgba(10, 46, 92, 0.65); }
  .lang-btn { min-width: 52px; }
  .hero-background { object-position: center; }
  .hero-slide-inner { justify-content: center; padding-top: 42px; padding-bottom: 112px; }
  .hero-content { width: 90%; text-align: center; }
  .hero-kicker { justify-content: center; }
  .hero-content h1 { max-width: none; font-size: 2.35rem; line-height: 1.2; }
  .hero-copy { margin-right: auto; margin-left: auto; font-size: 0.92rem; }
  .hero-actions, .hero-stats { justify-content: center; }
  .hero-control { display: none; }
}

@media (max-width: 640px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .section { padding: 68px 0; }
  .hero-content h1 { font-size: 2.15rem; }
  .hero-actions .btn { min-width: 132px; }
  .hero-stats { justify-content: flex-start; margin-top: 34px; overflow-x: auto; scrollbar-width: none; }
  .hero-stats div { min-width: 112px; flex: 1 0 112px; padding-right: 12px; }
  .hero-stats div + div { padding-left: 12px; }
  .hero-stats dt { font-size: 1.35rem; }
  .hero-stats dd { font-size: 0.68rem; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-grid article, .capability-grid article:first-child { padding: 24px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .capability-grid article:last-child { border-bottom: 0; }
  .product-grid, .related-grid { grid-template-columns: 1fr; }
  .product-image { height: 200px; }
  .certificate-media { height: 220px; }
  .about-layout, .service-layout, .contact-layout { gap: 36px; }
  .design-capability-layout { grid-template-columns: 1fr; gap: 32px; }
  .design-carousel-viewport { height: min(390px, 72vw); }
  html[lang="zh-CN"] .design-carousel-viewport { height: min(430px, calc(100vw - 56px)); }
  .design-carousel-caption { display: block; }
  .design-carousel-caption span { display: block; margin-top: 2px; }
  .factory-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; gap: 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; }
  .detail-hero { padding-top: 30px; }
  .detail-hero-grid { gap: 30px; }
  .detail-media { min-height: 290px; }
  .detail-media img { height: 290px; }
  .parameter-table, .parameter-table tbody, .parameter-table tr, .parameter-table th, .parameter-table td { display: block; width: 100%; }
  .parameter-table tr { padding: 14px 16px; border-bottom: 1px solid var(--line); }
  .parameter-table th, .parameter-table td { padding: 0; border: 0; background: transparent; }
  .parameter-table th { margin-bottom: 7px; }
  html[lang="en"] .parameter-table th { display: none; }
  .parameter-table th span { display: none; }
  .parameter-table th small { color: var(--sea); font-size: 0.68rem; text-transform: uppercase; }
  .parameter-table td::before { content: attr(data-label); display: block; margin-bottom: 3px; color: #71869A; font-size: 0.72rem; font-weight: 500; }
  .application-layout { grid-template-columns: 1fr; gap: 24px; }
  .detail-cta .container { align-items: flex-start; flex-direction: column; }
  .detail-actions .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}