:root {
  --bg: #090b0e;
  --ink: #f4f5f7;
  --muted: #a6abb4;
  --line: rgba(236, 244, 255, .15);
  --cyan: #b8f3f3;
  --scroll-progress: 0;
  --mag-x: 0px;
  --mag-y: 0px;
  color-scheme: dark;
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  font-synthesis: none;
}
*, *::before, *::after { box-sizing: border-box; letter-spacing: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 120px; background: var(--bg); }
body { margin: 0; min-width: 320px; color: var(--ink); background: var(--bg); font-size: 16px; line-height: 1.7; }
body, .page-shell { overflow-x: clip; }
a { color: inherit; text-decoration: none; -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
h1, h2, h3, p { margin: 0; }
img { display: block; max-width: 100%; height: auto; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 6px; }
::selection { background: #b8f3f3; color: #101419; }
.skip-link { position: fixed; top: -100px; left: 20px; padding: 12px 20px; background: white; color: #101419; z-index: 100; }
.skip-link:focus { top: 15px; }
.section-frame { position: relative; width: min(1240px, calc(100% - 112px)); margin-inline: auto; }

/* Only the compact navigation blurs content behind it. */
.site-header { position: fixed; top: 24px; left: 50%; transform: translateX(-50%); z-index: 20; display: flex; align-items: center; gap: 28px; width: min(1240px, calc(100% - 64px)); min-height: 64px; padding: 10px 12px 10px 24px; border: 1px solid rgba(245, 250, 255, .22); border-radius: 8px; background: #181d24; box-shadow: inset 0 1px 0 #ffffff38, inset 0 -1px 0 #d6eeff0d, 0 8px 24px #00000026; transition: background .3s, box-shadow .3s; }
@supports (backdrop-filter: blur(12px)) {
  .site-header { background: rgba(36, 42, 50, .50); backdrop-filter: blur(12px) saturate(1.4); -webkit-backdrop-filter: blur(12px) saturate(1.4); }
  .is-scrolled .site-header { background: rgba(24, 29, 35, .83); }
}
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-name { font-size: 15px; font-weight: 600; }
.brand-mark { width: 26px; height: 26px; border: 2px solid #e4e9ec; border-radius: 50%; display: grid; place-items: center; }
.brand-mark span { display: block; width: 12px; height: 12px; border: 2px solid var(--cyan); border-radius: 50%; }
.site-nav { display: flex; gap: 8px; margin-left: auto; }
.site-nav a { position: relative; display: grid; place-items: center; min-height: 44px; padding: 8px 16px; color: #e2e5ea; font-size: 13px; border-radius: 5px; transition: color .25s, background .25s; }
.site-nav a:hover, .site-nav a:focus-visible { background: #ffffff14; color: #fff; }
.site-nav a::after { content: ""; position: absolute; bottom: 5px; left: 16px; right: 16px; height: 1px; background: #d6ffff; transform: scaleX(0); transform-origin: left; transition: transform .25s; }
.site-nav a:hover::after, .site-nav a:focus-visible::after { transform: scaleX(1); }
.header-contact { min-height: 42px !important; font-size: 12px !important; padding: 8px 15px !important; }

.hero { width: 100%; min-height: min(770px, calc(100svh - 140px)); padding: 164px max(56px, calc((100vw - 1240px) / 2)) 110px; isolation: isolate; }
.hero-copy { position: relative; z-index: 2; max-width: 700px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin-bottom: 24px; color: var(--cyan); font-size: 11px; font-weight: 600; }
.eyebrow-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--cyan); }
h1 { font-size: 76px; font-weight: 600; line-height: 1.15; }
h1 em, h2 em { font-style: normal; color: #a7b3c2; }
h1 em { color: #c7dce4; }
.hero-lead { margin-top: 28px; font-size: 17px; color: #e4e8eb; }
.hero-summary { max-width: 390px; margin-top: 9px; color: var(--muted); font-size: 13px; }
.hero-actions { display: flex; align-items: center; gap: 26px; margin-top: 32px; }
.glass-button { --shine-x: 50%; position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 23px; min-height: 48px; padding: 12px 21px; overflow: hidden; border: 1px solid #e1efff59; border-radius: 7px; color: #f6faff; background: radial-gradient(ellipse at var(--shine-x) 0%, #f1feff26, transparent 75%), linear-gradient(135deg, #ffffff20, #daedff07 55%, #d5cbff1f); box-shadow: inset 0 1px 0 #ffffff3d, inset 0 -1px 0 #a3e1ff17, 0 8px 24px #0000001f; font-size: 13px; font-weight: 500; transform: translate(var(--mag-x), var(--mag-y)); transition: transform .2s, background .25s, border-color .25s, box-shadow .25s; }
.glass-button::before { content: ""; position: absolute; inset: -60% -40%; background: linear-gradient(105deg, transparent 32%, #ffffff52 48%, transparent 58%); transform: translateX(-110%); transition: transform .65s; pointer-events: none; }
.glass-button::after { content: ""; pointer-events: none; position: absolute; inset: 0; box-shadow: inset 0 1px 1px #ffffff38; border-radius: inherit; }
.glass-button:hover, .glass-button:focus-visible { border-color: #c5fcffb3; box-shadow: inset 0 1px 0 #ffffff66, 0 10px 26px #b8f3f317; }
.glass-button:hover::before, .glass-button:focus-visible::before { transform: translateX(110%); }
.glass-button:active { transform: scale(.96); }
.glass-button--primary { background: radial-gradient(ellipse at var(--shine-x) 0%, #f1feff26, transparent 75%), linear-gradient(125deg, #dcf8ff26, #ffffff0b 58%, #d7caff29); }
.glass-button span { color: #d3ffff; font-size: 17px; }
.text-link { min-height: 44px; display: inline-flex; align-items: center; gap: 14px; color: #b8c0c9; font-size: 13px; }
.text-link:hover { color: white; }
.hero-meta { display: flex; gap: 24px; margin-top: 55px; font-size: 10px; color: #9da6b2; }
.hero-meta strong { font-weight: 400; color: #bce6e9; margin-right: 6px; }
.hero-art { position: absolute; z-index: 0; inset: 0; pointer-events: none; overflow: hidden; }
.bearing-image { position: absolute; top: 170px; left: 54%; width: min(43%, 590px); max-width: none; filter: drop-shadow(0 26px 25px #00000066); transform: translateY(calc(var(--scroll-progress) * -65px)); }
.art-label { position: absolute; right: max(56px, calc((100vw - 1240px) / 2)); bottom: 73px; font-size: 9px; color: #7e8d9c; }
.art-caption { position: absolute; right: max(56px, calc((100vw - 1240px) / 2)); bottom: 51px; font-size: 10px; color: #606e7b; }
.scroll-cue { display: inline-flex; align-items: center; gap: 20px; position: absolute; left: max(56px, calc((100vw - 1240px) / 2)); bottom: 50px; min-height: 30px; color: #bac5ce; font-size: 10px; }
.scroll-line { display: inline-block; height: 1px; width: 84px; background: #66717c; }

.about { display: grid; grid-template-columns: .35fr .9fr 1.15fr; gap: 45px; padding-block: 70px 130px; border-top: 1px solid var(--line); }
.section-index { color: #8e9aa8; font-size: 10px; }
.about > .section-index { padding-top: 6px; }
.about .eyebrow { margin-bottom: 20px; }
h2 { font-size: 44px; font-weight: 500; line-height: 1.25; }
.about-body { padding-top: 38px; }
.large-copy { margin-bottom: 22px; font-size: 21px; line-height: 1.65; }
.muted-copy { font-size: 13px; color: var(--muted); line-height: 1.95; }
.about-motto { margin-top: 20px; color: #cfdddd; font-size: 13px; }
.stats-row { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 35px; border-top: 1px solid var(--line); }
.stat { padding-top: 22px; display: flex; flex-direction: column; gap: 6px; }
.stat strong { color: #e3eeee; font-size: 24px; font-weight: 400; }
.stat span { color: #929ba8; font-size: 11px; }

.products { width: 100%; padding: 100px max(56px, calc((100vw - 1240px) / 2)) 74px; background: #eef0f1; color: #171b20; color-scheme: light; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 45px; margin-bottom: 48px; }
.products .section-index { color: #727982; margin-bottom: 24px; }
.products .eyebrow { color: #526067; margin-bottom: 14px; }
.products h2 em { color: #79858e; }
.section-note { max-width: 295px; color: #687078; font-size: 13px; }
.catalog-hero { padding: 155px 0 70px; }
.catalog-hero .eyebrow { margin-top: 28px; margin-bottom: 14px; color: #b8f3f3; }
.catalog-hero h1 { max-width: 720px; }
.catalog-lead { max-width: 410px; margin-top: 25px; color: #a6abb4; font-size: 13px; }
.catalog-hero .catalog-nav { margin-top: 58px; border-color: var(--line); }
.catalog-hero .catalog-nav a { color: #dbe3e9; }
.catalog-hero .catalog-nav a:hover, .catalog-hero .catalog-nav a:focus-visible { color: #d8ffff; border-color: #d8ffff; }
.product-catalog { padding-top: 42px; }
.catalog-inner { width: min(1240px, 100%); margin-inline: auto; }
.catalog-nav { display: flex; flex-wrap: wrap; gap: 6px 24px; padding-bottom: 22px; margin-bottom: 38px; border-bottom: 1px solid #cdd3d7; }
.catalog-nav a { min-height: 44px; display: inline-flex; align-items: center; gap: 9px; font-size: 13px; color: #424f59; border-bottom: 1px solid transparent; }
.catalog-nav a:hover, .catalog-nav a:focus-visible { border-bottom-color: #365b62; color: #163d46; }
.catalog-nav span { font-size: 10px; color: #7b858c; }
.product-family { padding-block: 16px 42px; scroll-margin-top: 120px; }
.product-family + .product-family { border-top: 1px solid #cdd3d7; padding-top: 40px; }
.family-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 22px; }
.family-heading h3 { font-size: 25px; font-weight: 500; line-height: 1.4; }
.family-heading h3 span { margin-right: 12px; color: #7b878e; font-size: 12px; vertical-align: middle; }
.family-heading p { max-width: 440px; font-size: 12px; color: #687078; }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; perspective: 1600px; }
.product-card { position: relative; overflow: hidden; display: flex; flex-direction: column; min-width: 0; border: 1px solid #cdd3d7; border-radius: 8px; padding: 20px; background: #f7f8f9; box-shadow: inset 0 1px 0 #ffffff; transition: transform .35s, border-color .35s, box-shadow .35s; }
.product-card::before { content: ""; position: absolute; inset: -50%; background: linear-gradient(110deg, transparent 38%, #ffffff8f 48%, transparent 58%); transform: translateX(-105%); transition: transform .8s; pointer-events: none; z-index: 1; }
.product-card:hover { transform: translateY(-7px) rotateX(2deg); border-color: #9fbdc4; box-shadow: 0 16px 24px #10212e0e; }
.product-card:hover::before { transform: translateX(105%); }
.card-topline { display: flex; justify-content: space-between; align-items: center; min-height: 24px; font-size: 10px; color: #68737c; }
.product-visual { position: relative; display: grid; place-items: center; aspect-ratio: 4 / 3; margin: 12px 0 20px; background: white; overflow: hidden; }
.product-visual img { width: 100%; height: 100%; object-fit: contain; padding: 10px; }
.card-copy h4 { margin: 0 0 9px; font-size: 19px; font-weight: 500; line-height: 1.45; overflow-wrap: anywhere; }
.card-copy p { color: #687079; font-size: 12px; min-height: 42px; }
.product-specs { display: grid; gap: 7px; margin: 18px 0 0; padding-top: 14px; border-top: 1px solid #dce0e2; font-size: 11px; }
.product-specs div { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.product-specs dt { color: #7b858c; flex-shrink: 0; }
.product-specs dd { margin: 0; text-align: right; color: #36444c; overflow-wrap: anywhere; }
.card-tag { display: block; margin-top: auto; padding-top: 22px; font-size: 9px; color: #879098; }
.family-more { margin-top: 18px; }
.family-more > summary { display: flex; align-items: center; justify-content: space-between; gap: 14px; min-height: 50px; padding-block: 12px; border-bottom: 1px solid #cdd3d7; cursor: pointer; list-style: none; color: #42555e; font-size: 12px; }
.family-more > summary::-webkit-details-marker { display: none; }
.family-more > summary::after { content: "+"; font-size: 22px; line-height: 1; }
.family-more[open] > summary::after { content: "−"; }
.family-more[open] > summary { margin-bottom: 20px; }
.family-more[open] .reveal { animation: none; }
.sample-note { margin-top: 24px; color: #747f86; font-size: 11px; }
.category-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.category-card { position: relative; display: flex; flex-direction: column; min-width: 0; overflow: hidden; border: 1px solid #cdd3d7; border-radius: 8px; background: #f7f8f9; color: #171b20; transition: transform .35s, border-color .35s, box-shadow .35s; }
.category-card:hover, .category-card:focus-visible { transform: translateY(-6px); border-color: #8eb3ba; box-shadow: 0 16px 24px #10212e12; }
.category-card::after { content: ""; position: absolute; inset: 0; pointer-events: none; box-shadow: inset 0 1px #fff; }
.category-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: contain; background: #fff; padding: 9px; }
.category-no { padding: 17px 17px 0; color: #6f7b82; font-size: 10px; }
.category-copy { display: grid; gap: 6px; padding: 14px 17px 18px; }
.category-copy strong { font-size: 17px; font-weight: 500; }
.category-copy small { min-height: 20px; color: #687079; font-size: 11px; }
.category-copy b { margin-top: 9px; color: #3e636c; font-size: 10px; font-weight: 500; }
.wechat-contact { display: flex; align-items: center; gap: 18px; margin-top: 24px; color: #aebbc5; font-size: 11px; }
.wechat-contact img { width: 94px; height: 94px; object-fit: cover; background: #fff; padding: 6px; }

.contact { padding-block: 104px 116px; }
.contact > .section-index { margin-bottom: 35px; }
.contact-layout { display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 90px; }
.contact-copy .eyebrow { margin-bottom: 18px; }
.contact-copy h2 { margin-bottom: 24px; }
.contact-copy .muted-copy { max-width: 410px; margin-bottom: 28px; }
.contact-details { position: relative; border: 1px solid #eff9ff3b; border-radius: 8px; padding: 26px; background: linear-gradient(130deg, #ffffff12, #ffffff03 58%, #d4c7ff16); box-shadow: inset 0 1px 0 #ffffff33, inset 0 -1px 0 #b8f3f310; }
.detail-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; color: #afb9c3; font-size: 10px; }
.contact-star { color: #cff6ef; font-size: 36px; line-height: 1.2; }
.detail-row { display: flex; align-items: baseline; justify-content: space-between; gap: 18px; border-bottom: 1px solid var(--line); padding-block: 18px; color: #dce4eb; font-size: 12px; }
.detail-row > span:first-child { color: #909eac; white-space: nowrap; font-size: 11px; }
.detail-row > :last-child { text-align: right; overflow-wrap: anywhere; min-width: 0; }
.detail-row a:hover, .detail-row a:focus-visible { color: var(--cyan); text-decoration: underline; }
.detail-footer { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-top: 25px; color: #7e8b97; font-size: 9px; }
.site-footer { width: min(1240px, calc(100% - 112px)); margin-inline: auto; padding: 28px 0 35px; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 20px; color: #8e98a3; font-size: 11px; }
.site-footer .brand { color: #dce5e9; }
.back-top { display: inline-flex; align-items: center; gap: 15px; min-height: 44px; }
.back-top:hover { color: #d8ffff; }
.back-top span { font-size: 18px; }

@supports (animation-timeline: view()) {
  .reveal { animation: enter linear both; animation-timeline: view(); animation-range: entry 0% entry 80%; }
  .hero-copy.reveal { animation: none; }
}
@keyframes enter { from { opacity: .45; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }

@media (min-width: 1650px) { .bearing-image { left: 54%; top: 160px; width: 620px; } }
@media (max-width: 1150px) {
  .hero { padding-inline: 40px; }
  h1 { font-size: 64px; }
  .hero-copy { max-width: 600px; }
  .bearing-image { left: 57%; width: 41%; top: 210px; }
  .hero-summary { max-width: 325px; }
  .section-frame { width: calc(100% - 80px); }
  .hero, .products { width: 100%; }
  .products { padding-inline: 40px; }
  .scroll-cue { left: 40px; }
  .about { grid-template-columns: .22fr .85fr 1fr; gap: 28px; }
  h2 { font-size: 38px; }
  .contact-layout { gap: 40px; }
  .site-footer { width: calc(100% - 80px); }
  .catalog-inner { width: 100%; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 118px; }
  .site-header { top: 12px; width: calc(100% - 24px); padding: 8px 10px 7px; min-height: 87px; gap: 0; flex-wrap: wrap; justify-content: center; }
  .site-header .brand { justify-content: center; width: 100%; gap: 7px; }
  .brand-name { font-size: 12px; }
  .brand-mark { width: 19px; height: 19px; border-width: 1px; }
  .brand-mark span { width: 9px; height: 9px; border-width: 1px; }
  .site-nav { margin: 2px 0 0; width: 100%; justify-content: center; gap: 8px; }
  .site-nav a { min-height: 36px; padding: 5px 16px; font-size: 12px; }
  .header-contact { display: none; }
  .section-frame { width: calc(100% - 40px); }
  .hero { width: 100%; min-height: 0; padding: 144px 20px 290px; }
  h1 { font-size: 46px; line-height: 1.16; }
  .hero-lead { margin-top: 20px; font-size: 14px; }
  .hero-summary { max-width: 300px; font-size: 11px; }
  .hero-actions { gap: 25px; margin-top: 22px; }
  .glass-button { min-height: 46px; padding: 10px 17px; font-size: 12px; }
  .hero-meta { display: none; }
  .bearing-image { top: auto; bottom: 47px; left: auto; right: 5%; width: 236px; transform: rotate(-7deg); }
  .art-label { right: 21px; bottom: 31px; font-size: 8px; }
  .art-caption { display: none; }
  .scroll-cue { left: 20px; bottom: 28px; gap: 10px; font-size: 9px; }
  .scroll-line { width: 35px; }
  .about { display: block; padding-block: 44px 68px; }
  .about > .section-index { margin-bottom: 26px; }
  .eyebrow { font-size: 10px; }
  h2 { font-size: 34px; }
  .about-body { padding-top: 25px; }
  .large-copy { font-size: 18px; line-height: 1.7; }
  .muted-copy { font-size: 12px; }
  .stats-row { margin-top: 28px; }
  .products { width: 100%; padding: 64px 20px 48px; }
  .catalog-hero { width: calc(100% - 40px); padding: 138px 0 40px; }
  .catalog-hero h1 { font-size: 44px; }
  .catalog-hero .catalog-nav { margin-top: 38px; }
  .product-catalog { padding-top: 26px; }
  .section-heading { display: block; margin-bottom: 28px; }
  .products .section-index { margin-bottom: 24px; }
  .section-note { max-width: 350px; font-size: 12px; margin-top: 24px; }
  .catalog-nav { gap: 0 18px; margin-bottom: 22px; padding-bottom: 16px; }
  .catalog-nav a { font-size: 12px; }
  .product-family { padding-bottom: 30px; }
  .family-heading { display: block; }
  .family-heading h3 { font-size: 23px; }
  .family-heading p { margin-top: 12px; }
  .product-grid { grid-template-columns: 1fr; gap: 14px; }
  .product-card { padding: 20px; }
  .product-visual { aspect-ratio: 4 / 3; }
  .card-copy h4 { font-size: 20px; }
  .category-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .category-no { padding: 12px 12px 0; font-size: 9px; }
  .category-copy { padding: 10px 12px 13px; }
  .category-copy strong { font-size: 15px; }
  .category-copy small { font-size: 10px; }
  .category-copy b { font-size: 9px; }
  .contact { padding-block: 64px 70px; }
  .contact-layout { grid-template-columns: 1fr; gap: 35px; }
  .contact-details { padding: 22px; }
  .site-footer { width: calc(100% - 40px); padding-block: 22px; flex-wrap: wrap; }
  .site-footer > span { order: 3; width: 100%; font-size: 10px; }
}
@media (max-width: 360px) {
  h1 { font-size: 40px; }
  h2 { font-size: 30px; }
  .hero-meta { gap: 10px; }
  .bearing-image { width: 230px; }
  .site-nav a { padding-inline: 13px; }
  .category-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; }
  .glass-button, .product-card { transform: none !important; }
  .bearing-image { transform: rotate(-7deg); }
}
@media (hover: none) { .product-card:hover { transform: none; } }

/* Shared navigation and product typography across static language editions. */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.brand-mark { width: 32px; height: 32px; border: 0; border-radius: 0; color: var(--cyan); }
.brand-mark svg { width: 28px; height: 28px; stroke-width: 1.5; }
.language-control { display: flex; align-items: center; gap: 8px; flex-shrink: 0; padding-left: 16px; border-left: 1px solid var(--line); }
.language-symbol { font-size: 21px; color: #c0dde0; }
.nojs-languages { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 20px; padding: 10px 20px 30px; color: #b0c6ce; font-size: 12px; }
.language-control select { font: inherit; font-size: 12px; width: 133px; min-height: 42px; padding: 7px 20px 7px 2px; color: #e4e9ec; background: transparent; border: none; cursor: pointer; }
.language-control select option { color: #e4e9ec; background: #1b2127; }
.hero-copy { max-width: 620px; }
h1 { font-size: 58px; font-weight: 500; line-height: 1.18; overflow-wrap: anywhere; }
:lang(zh-CN) .hero h1 { font-size: 72px; }
.bearing-image { top: 144px; left: 57%; width: min(38%, 530px); height: 490px; object-fit: contain; }
.about { grid-template-columns: .22fr .8fr 1.15fr; gap: 35px; }
h2 { font-size: 38px; line-height: 1.3; overflow-wrap: anywhere; }
.stat strong { font-size: 16px; font-weight: 400; overflow-wrap: anywhere; }
.catalog-hero { padding: 150px 0 8px; }
.breadcrumb { display: inline-flex; flex-wrap: wrap; gap: 12px; font-size: 11px; color: #8f9ca8; }
.breadcrumb:hover { color: #d8ffff; }
.catalog-hero h1 { max-width: 950px; font-size: 48px; }
.catalog-count { display: inline-block; margin-inline-start: 24px; vertical-align: top; font-style: normal; color: #80918f; font-size: 20px; }
.catalog-description { display: flex; justify-content: space-between; align-items: baseline; gap: 24px; margin-bottom: 30px; font-size: 11px; color: #687078; }
.catalog-description > span { color: #3f525b; white-space: nowrap; }
.catalog-description p { max-width: 480px; text-align: end; }
.catalog-bottom { margin-top: 40px; }
.catalog-bottom .text-link { color: #365962; }
.catalog-nav [aria-current="page"] { border-bottom-color: #81c7bd; }
.catalog-group { margin-block: 0 24px; }
.catalog-group > summary { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 20px 0; list-style: none; border-top: 1px solid #cdd3d7; cursor: pointer; color: #293d45; font-size: 19px; }
.catalog-group > summary::-webkit-details-marker { display: none; }
.catalog-group summary small { margin-inline-start: 12px; color: #7b878e; font-size: 11px; }
.catalog-group summary b { font-weight: 400; font-size: 24px; }
.catalog-group[open] summary b { transform: rotate(45deg); }
.catalog-group .product-grid { margin-top: 8px; }
.card-copy h2 { margin: 0 0 9px; font-size: 19px; font-weight: 500; line-height: 1.45; overflow-wrap: anywhere; }
.product-enquiry { display: flex; gap: 16px; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 20px; min-height: 48px; color: #416b71; font-size: 11px; }
.product-enquiry:hover { color: #194d54; text-decoration: underline; }
.product-enquiry span { font-size: 17px; }
.detail-heading svg { width: 28px; height: 28px; color: #b8f3f3; stroke-width: 1.5; }
.wechat-contact img { width: 116px; height: 116px; object-fit: contain; background: #fff; padding: 4px; }
@media (min-width: 1650px) { .bearing-image { left: 55%; top: 140px; width: 570px; height: 530px; } }
@media (max-width: 1150px) {
  h1 { font-size: 48px; }
  :lang(zh-CN) .hero h1 { font-size: 60px; }
  .hero-copy { max-width: 540px; }
  .bearing-image { left: 60%; width: 36%; top: 175px; height: 410px; }
  h2 { font-size: 32px; }
}
@media (max-width: 760px) {
  .site-header { padding: 7px 10px 5px; min-height: 90px; justify-content: space-between; }
  .site-header .brand { justify-content: flex-start; width: auto; order: 0; }
  .brand-mark { width: 23px; height: 23px; }
  .brand-mark svg { width: 23px; height: 23px; }
  .language-control { border: 0; padding: 0; gap: 5px; order: 1; }
  .language-control select { font-size: 11px; width: 123px; min-height: 34px; }
  .language-symbol { font-size: 18px; }
  .site-nav { margin-top: 4px; justify-content: space-between; gap: 4px; order: 2; }
  .site-nav a { padding: 5px 10px; font-size: 11px; }
  h1 { font-size: 35px; line-height: 1.2; }
  :lang(zh-CN) .hero h1 { font-size: 46px; }
  .bearing-image { top: auto; bottom: 43px; left: auto; right: 6%; width: 240px; height: 240px; transform: none; }
  h2 { font-size: 30px; }
  .catalog-hero { padding: 138px 0 8px; }
  .catalog-hero h1 { font-size: 36px; }
  .card-copy h2 { font-size: 20px; }
  .catalog-description { display: block; }
  .catalog-description p { text-align: start; margin-top: 12px; }
}
@media (max-width: 360px) {
  h1 { font-size: 31px; }
  :lang(zh-CN) .hero h1 { font-size: 40px; }
  .site-nav a { padding-inline: 8px; font-size: 10px; }
}
[dir="rtl"] .hero-copy { direction: ltr; }
[dir="rtl"] .hero-lead, [dir="rtl"] .hero-summary, [dir="rtl"] .hero-actions, [dir="rtl"] .hero-meta { direction: rtl; }
[dir="rtl"] .glass-button { direction: ltr; }
[dir="rtl"] .site-nav { margin-left: 0; margin-right: auto; }
[dir="rtl"] .language-control { padding-left: 0; padding-right: 16px; border-left: 0; border-right: 1px solid var(--line); }
@media (max-width: 760px) { [dir="rtl"] .site-nav { margin-right: 0; } [dir="rtl"] .language-control { border: 0; padding: 0; } }
@media (prefers-reduced-motion: reduce) { .bearing-image { transform: none; } }