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1.3fr;position:fixed;left:0;right:0;bottom:0;z-index:25;background:var(--paper);padding-bottom:env(safe-area-inset-bottom);box-shadow:0 -3px 16px #20352c16}.mobile-contact a{padding:14px;text-align:center;font-size:14px}.mobile-contact a:last-child{background:var(--accent);color:white}.toast{bottom:85px;max-width:90%;white-space:normal;width:max-content;text-align:center}dialog{width:calc(100% - 24px);max-height:88dvh}.detail-grid{display:block}.detail-image{min-height:280px;padding:25px 20px 15px}.detail-image>img{height:220px}.detail-arrows{margin-top:15px}.detail-copy{padding:27px 22px}.detail-copy h2{font-size:25px}.detail-copy>p{font-size:14px}#detail-en{font-size:12px}.detail-spec dd{font-size:14px}.detail-note{font-size:11px!important}.dialog-close{right:9px;top:9px}.photo-caption{font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}
/* Preserve the product photograph against the technical background. */
.hero-product{filter:none}.menu{display:none}@media(max-width:760px){.menu{display:inline-grid}}
.hero-visual{overflow:hidden}.hero-product{left:10%;width:86%;height:45%;top:11%}.workflow{position:relative;isolation:isolate}.workflow::before{content:'';position:absolute;inset:0;z-index:-1;background:url('assets/metal-detail.jpg') center/cover;opacity:.035}
.share-product{margin-top:16px;font-size:12px}

.reference-badge{position:absolute;left:10px;bottom:10px;background:#f0f2eb;color:#63725d;padding:2px 7px;font-size:10px}.product-type{min-height:16px}@media(max-width:760px){.filters{flex-wrap:wrap}.filters button{flex:1 1 40%}.reference-badge{font-size:9px}}
.product-image img{position:absolute;left:7%;top:14%;width:86%;height:72%;min-height:0;object-fit:contain}@media(max-width:760px){.product-image img{left:5%;width:90%}}
.language-switch{display:flex;gap:2px;flex-shrink:0;border:1px solid var(--line,#d9ded8);padding:3px}.language-switch button{border:0;background:transparent;padding:8px 10px;font:inherit;font-size:13px;color:inherit;cursor:pointer}.language-switch button[aria-pressed=true]{background:#173638;color:#fff}.email-link{display:inline-block;color:inherit;font-size:22px;word-break:break-all;margin-top:16px;text-underline-offset:5px}.email-label{font-size:13px!important;margin:8px 0 24px!important}.address-en{font-size:13px!important;line-height:1.6!important;opacity:.75}html[lang=en] .hero h1{font-size:clamp(42px,4.4vw,68px);line-height:1.15}html[lang=en] .header nav{gap:22px}html[lang=en] .header .brand strong{font-size:19px}html[lang=en] .product-type{font-size:11px}html[lang=en] .hero-foot p{font-size:13px}html[lang=en] .section-top h2{max-width:680px}html[lang=en] .materials dl>div{gap:12px}html[lang=en] .product-card h3{min-height:3em}html[lang=en] .product-bottom{flex-wrap:wrap;gap:8px}
@media(max-width:1000px){.header-inner{gap:14px}.language-switch button{padding:7px}.header nav{gap:14px}html[lang=en] .header nav{gap:14px}.header .brand strong{font-size:19px}}
@media(max-width:760px){.language-switch{margin-left:auto}.header-inner{gap:9px}.header .brand strong,html[lang=en] .header .brand strong{font-size:16px}.header .brand img{width:40px;height:40px}.header .brand small{font-size:8px}.language-switch button{font-size:12px;padding:6px}.hero h1{max-width:100%}html[lang=en] .hero h1{font-size:44px}.email-link{font-size:21px}html[lang=en] .filters button{font-size:12px}html[lang=en] .section h2{font-size:32px}html[lang=en] .product-meta{gap:10px}.language-switch button:focus-visible{outline:2px solid #b95b35;outline-offset:2px}}

html[lang=en] .hk-address,html[lang=en] .hk-name small,html[lang=en] .hk-name br{display:none}
@media(max-width:760px){.facts{grid-template-columns:repeat(2,minmax(0,1fr))}.facts>div{min-width:0}html[lang=en] .facts strong{font-size:21px;white-space:normal;overflow-wrap:anywhere}html[lang=en] .facts strong span{font-size:11px}}
.contact-mainland .address{border-top:0;margin-top:24px;padding-top:0}.contact-mainland h3{font-size:23px;line-height:1.5;margin:12px 0}.sales-contacts{margin-top:28px}.sales-contacts .contact-person{margin:20px 0 6px}.sales-contacts .phone{font-size:36px}.hongkong-office{margin-top:32px}.enquiry-grid{align-items:start}@media(max-width:760px){.sales-contacts .phone{font-size:31px}.contact-mainland h3{font-size:21px}.filters{flex-wrap:wrap}.filters button{flex:1 1 30%}}
.thread-reference{background:#eef1e9}.reference-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}.reference-card{background:#fff;border:1px solid var(--line);padding:24px;min-width:0}.reference-heading>span{font-size:11px;color:var(--muted);letter-spacing:2px}.reference-heading h3{font-size:24px;margin:14px 0 8px}.reference-heading p{font-size:14px;color:var(--muted)}.reference-preview{display:flex;align-items:start;justify-content:center;margin:24px 0;aspect-ratio:1/1.07;background:#fff;overflow:hidden}.reference-preview img{display:block;max-width:100%;max-height:100%;object-fit:contain}.reference-preview:focus-visible{outline:3px solid #b95b35;outline-offset:4px}.reference-actions{display:flex;align-items:center;justify-content:space-between;gap:12px}.reference-actions .outline-btn{font-size:13px;padding:12px 16px}.reference-source{font-size:11px;color:var(--muted);margin-top:18px}.reference-note{border-left:3px solid var(--accent,#b95b35);margin-top:28px;padding:10px 20px;font-size:14px;color:var(--muted);line-height:1.8}.table-jump{margin-top:28px;display:inline-flex}@media(max-width:760px){.reference-grid{grid-template-columns:1fr}.reference-card{padding:18px}.reference-heading h3{font-size:22px}.reference-note{font-size:13px}.reference-actions .text-link{font-size:14px}}
/* Reserve separate image and caption areas on phones. */
@media(max-width:760px){.hero-visual{height:470px}.hero-product{left:10%;top:0;width:80%;height:190px}.hero-image-label{top:270px;bottom:auto;left:24px;right:24px}.hero-image-label h2{line-height:1.35}.hero-mini{bottom:18px}.crosshair.br{bottom:150px}}
@media(max-width:760px){.hero-visual{height:500px}.hero-product{left:50%;width:min(80%,340px);transform:translateX(-50%) rotate(-18deg)}}
.header .brand strong{font-size:30px}html[lang=en] .header .brand strong{font-size:22px;letter-spacing:1.6px}
@media(max-width:760px){.header .brand{gap:8px;min-width:0}.header .brand strong{font-size:24px;letter-spacing:1px;white-space:nowrap}.header .brand small{font-size:7px;letter-spacing:1px}html[lang=en] .header .brand strong{font-size:18px;letter-spacing:1px;white-space:normal}.header .language-switch button{padding:6px}.header .menu{width:38px;height:40px}}
@media(max-width:360px){.header .brand img{width:32px;height:32px}.header .brand strong{font-size:22px}.header .brand small{font-size:6px;letter-spacing:.8px}.header-inner{gap:6px}.header .language-switch button{font-size:11px;padding:5px}html[lang=en] .header .brand strong{font-size:16px;letter-spacing:.5px}}