:root{--ink:#111;--muted:#777;--green:#00a51a;--red:#fa1515;--line:#e6e6e6;--max:1200px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:25px}body{margin:0;background:#fff;color:var(--ink);font:16px/1.65 "Microsoft YaHei","PingFang SC",Arial,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit}img{display:block;max-width:100%;height:auto}button,input,textarea,select{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default}a:focus-visible,button:focus-visible,select:focus-visible{outline:3px solid #2876cf;outline-offset:5px}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0,0,0,0)}
.container{width:min(80%,var(--max));margin-inline:auto}.page-kicker{font:600 18px/1.2 Arial,sans-serif;text-align:center;letter-spacing:.06em;margin:0;padding:38px 20px 30px}.hero{position:relative;width:min(84%,1440px);margin:0 auto;min-height:490px;background:#080808 center/cover;overflow:hidden}.hero-about{background-image:linear-gradient(#0003,#0000),url('images/about-hero.webp')}.hero-contact{background-image:linear-gradient(#0003,#0000),url('images/contact-hero.webp')}.site-header{position:absolute;z-index:4;inset:0 0 auto;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:32px 4%;color:white;background:linear-gradient(#0004,transparent)}.brand{flex-shrink:0}.brand img{width:100px;height:auto;filter:brightness(0) invert(1)}.nav-wrap,.site-nav{display:flex;align-items:center}.nav-wrap{gap:28px}.site-nav{gap:40px}.site-nav a{font-size:15px;text-decoration:none;white-space:nowrap}.site-nav a:hover,.site-nav a[aria-current]{text-decoration:underline;text-underline-offset:8px}.language-control select{max-width:145px;border:1px solid #fff9;border-radius:20px;background:#1118;color:white;padding:7px 10px;font-size:13px}.language-control option{background:white;color:#111}.hero-copy{position:relative;z-index:1;min-height:490px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:25px;padding:135px 12% 75px;color:white;text-align:center}.hero-copy h1,.hero-copy h2{font-size:clamp(32px,3.6vw,60px);line-height:1.3;max-width:1000px;letter-spacing:.01em;margin:0;white-space:pre-line}.hero-copy p{max-width:850px;font-size:clamp(16px,1.8vw,23px);line-height:1.7;margin:0}.btn-outline{border:1px solid white;border-radius:5px;padding:7px 26px;color:white;text-decoration:none;font-size:15px}.hero-slide{background:center/cover}.hero-home .hero-copy{min-height:560px}.hero-home{min-height:560px}.intro-slide h1{font-size:clamp(30px,3vw,52px)}.carousel-controls{position:absolute;inset:auto 0 18px;z-index:3;display:flex;align-items:center;justify-content:center;gap:14px;color:white}.carousel-controls>button{border:1px solid #ffffff6b;background:#0004;color:white;border-radius:50%;width:34px;height:34px;line-height:1;font-size:24px}.carousel-controls [data-carousel-pause]{font-size:13px}.carousel-dots{display:flex;gap:11px;align-items:center}.carousel-dots button{border:0;border-radius:50%;width:9px;height:9px;padding:0;background:#fff7}.carousel-dots button[aria-pressed=true]{background:#fff;box-shadow:0 0 0 3px #fff3}
.home-products{padding:85px 0 0}.product-section{margin:0 0 100px}.section-heading{font-size:clamp(27px,2.6vw,40px);line-height:1.3;margin:0 0 9px}.section-subtitle{font-size:clamp(15px,1.5vw,21px);color:#929292;margin:0 0 35px}.product-visual-link{display:block}.banner{width:100%;height:145px;object-fit:cover}.home-swatches{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:28px 34px;margin:44px 0}.home-swatch{display:grid;justify-items:center;align-content:start;text-decoration:none;gap:11px;min-width:0}.home-swatch img{aspect-ratio:1;object-fit:cover;width:100%;max-width:148px;border-radius:50%;transition:transform .2s}.home-swatch:hover img{transform:scale(1.06)}.home-swatch span{font-size:13px;line-height:1.4;overflow-wrap:anywhere;text-align:center}.offer-row{display:flex;align-items:center;justify-content:space-between;gap:25px;margin-top:40px}.price{font-size:clamp(44px,4.9vw,76px);font-weight:600;letter-spacing:-.05em;line-height:1.1;margin:0;white-space:nowrap}.price small{font-size:.43em;letter-spacing:0}.actions{display:flex;gap:20px}.btn{display:inline-flex;align-items:center;justify-content:center;min-width:185px;min-height:52px;border:0;border-radius:999px;padding:10px 30px;color:white;text-decoration:none;font-size:20px;line-height:1.4;text-align:center}.btn:hover{filter:brightness(.92)}.btn-green{background:var(--green)}.btn-red{background:var(--red)}
.content-section{padding-block:80px}.content-section+.content-section{padding-top:20px}.display-heading{font-size:clamp(29px,3vw,44px);margin:0 0 30px;line-height:1.35}.about-intro{display:grid;grid-template-columns:190px 1fr;gap:50px;margin-bottom:50px}.about-intro h2{margin:0;font-size:32px}.about-copy{font-size:18px;line-height:1.95;max-width:850px}.about-copy p{margin:0 0 24px}.wide-media{width:100%;height:auto;object-fit:contain}.section-action-row{display:flex;justify-content:space-between;align-items:center;gap:25px;margin-top:35px;font-size:19px}.reports-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:35px;max-width:1000px;margin:35px auto 0}.reports-grid a{display:block;border:1px solid var(--line);padding:12px;background:#fafafa}.reports-grid img{aspect-ratio:2480/3508;width:100%;object-fit:contain}.detail-note{color:var(--muted);font-size:15px;line-height:1.8;margin:12px 0 28px}.closing-cta{text-align:center;padding-block:65px}.closing-cta h2{font-size:28px;margin:0 0 25px}
.services-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:65px 35px;padding-block:95px;text-align:center;max-width:1000px}.service-item{display:grid;justify-items:center;align-content:start;gap:20px}.service-icon{width:75px;height:75px}.service-icon svg{height:100%;width:100%;fill:none;stroke:currentColor;stroke-width:5;stroke-linecap:round;stroke-linejoin:round}.service-item h3{font-size:22px;font-weight:500;margin:0}.contact-heading h2{font-size:38px;margin:0}.contact-heading p{font-size:18px;color:#888;margin:8px 0 30px}.contact-banner{width:100%;height:145px;object-fit:cover;margin-bottom:45px}.contact-layout{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:start}.contact-form{display:grid;gap:18px}.contact-form>.detail-note{margin:0 0 5px}.field{display:grid;gap:7px;font-size:15px}.field input,.field textarea{border:1px solid #bbb;border-radius:6px;background:#fff;width:100%;min-width:0;min-height:60px;padding:15px 18px;font-size:17px;color:#111}.field textarea{min-height:150px;resize:vertical}.field input:focus,.field textarea:focus{outline:2px solid #00a51a55;border-color:var(--green)}.contact-form .btn{justify-self:start}.form-status{margin:0;min-height:24px;color:#078a18}.contact-details{display:grid;gap:48px;padding-top:20px}.contact-detail{display:grid;grid-template-columns:50px minmax(0,1fr);gap:22px;align-items:center;font-size:18px;overflow-wrap:anywhere}.contact-detail svg{width:44px;height:44px;fill:none;stroke:currentColor;stroke-width:2}.contact-detail a{text-underline-offset:5px}
.breadcrumbs{font-size:13px;color:#777;margin:0 0 30px}.product-config{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:55px;align-items:start}.product-gallery{min-width:0}.main-image-button{display:block;position:relative;border:1px solid var(--line);padding:0;background:#fafafa;width:100%;border-radius:5px;overflow:hidden}.product-card-image{width:100%;height:auto;aspect-ratio:1;object-fit:contain}.main-image-button>span{position:absolute;right:10px;bottom:10px;border-radius:4px;background:#111b;color:white;padding:3px 10px;font-size:12px}.gallery-thumbs{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;margin-top:14px}.gallery-thumbs button{padding:3px;border:1px solid #ddd;background:white;border-radius:3px}.gallery-thumbs button[aria-pressed=true]{border:2px solid var(--green);padding:2px}.gallery-thumbs img{width:100%;aspect-ratio:1;object-fit:contain}.product-picker h2{margin:0;font-size:32px;line-height:1.4}.product-unit-price{font-size:19px;margin:12px 0 25px}.product-unit-price strong{font-size:31px}.eyebrow{font-size:14px;color:#777;margin:12px 0}.stone-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:12px 10px}.stone-option{border:0;background:none;padding:0;min-width:0}.stone-option img{width:100%;aspect-ratio:1;object-fit:cover;border:2px solid transparent;border-radius:4px}.stone-option.selected img{border-color:var(--green);box-shadow:0 0 0 2px #00a51a2b}.stone-option small{display:block;font-size:11px;line-height:1.4;margin-top:4px;overflow-wrap:anywhere}.selection-line{font-size:15px;margin:22px 0}.selection-line strong{color:#111}.weight-options{display:flex;gap:12px}.weight-options button{border:1px solid #ddd;background:white;border-radius:5px;padding:7px 24px}.weight-options button.active{border-color:var(--green);color:#078a18;background:#f0fff2}.estimate{font-size:16px;margin:20px 0}.estimate small{display:block;font-size:12px;color:#888;margin-top:7px}.product-picker>.btn{width:100%;border-radius:5px}.detail-section{padding-block:35px}.detail-section>h2{font-size:30px;margin:0 0 20px;line-height:1.4}.spec-list{display:grid;grid-template-columns:1fr 1fr;gap:20px 35px;margin:30px 0 15px}.spec-list>div{display:flex;gap:24px;border-bottom:1px solid var(--line);padding-bottom:15px}.spec-list dt{font-weight:600;min-width:85px}.spec-list dd{margin:0;color:#666;font-size:15px}.detail-gallery{max-width:900px;margin:35px auto 0;display:grid;gap:38px}.detail-image-button{border:0;background:white;padding:0;display:block;width:100%}.detail-media{width:100%;height:auto;object-fit:contain}.product-gallery button:hover,.detail-image-button:hover{filter:brightness(.98)}
.site-footer{margin-top:65px;background:#f5f5f5}.footer-grid{width:min(80%,var(--max));margin-inline:auto;display:grid;grid-template-columns:1fr 1fr 1.4fr;gap:55px;padding:55px 0 45px}.footer-grid h3{font-size:20px;margin:0 0 23px}.footer-links{display:grid;gap:12px;justify-items:start;font-size:15px;overflow-wrap:anywhere}.footer-links a{text-underline-offset:4px}.text-button{border:0;padding:0;background:none;text-decoration:underline;text-underline-offset:4px;color:inherit;text-align:start}.geo-attribution{margin:0;text-align:center;font-size:11px;color:#888;padding:0 20px 20px}.floating-contact{position:fixed;z-index:12;right:15px;top:50%;transform:translateY(-30%);display:grid;gap:9px}.floating-contact a,.floating-contact button{display:grid;place-items:center;width:47px;height:47px;padding:11px;border:1px solid #f1f1f1;border-radius:10px;background:#fff;box-shadow:0 3px 14px #0000000c;text-decoration:none;color:#111}.floating-contact svg{width:25px;height:25px}.floating-contact .wa,.floating-contact .wechat{color:#0cba55}.floating-contact .mail{color:#edaa00}.floating-contact a:hover,.floating-contact button:hover{background:#f5fff7}.toast{position:fixed;inset:auto 85px 25px auto;padding:10px 20px;background:#111;color:white;border-radius:6px;z-index:40;max-width:70%;opacity:0;pointer-events:none}.toast.show{opacity:1}.contact-dialog{max-width:min(90vw,460px);border:0;border-radius:12px;padding:35px;text-align:center}.contact-dialog h2{font-size:28px;margin:0 0 15px}.wechat-id{display:block;font-size:30px;letter-spacing:.04em;margin:20px 0}.copy-status{min-height:30px;font-size:14px;max-width:350px}dialog::backdrop{background:#000b}.dialog-close{position:absolute;right:10px;top:5px;border:0;background:#fff;color:#111;border-radius:50%;width:36px;height:36px;font-size:28px;z-index:2}.image-dialog{padding:45px 12px 12px;border:0;border-radius:6px;max-width:95vw;max-height:96vh;background:#fff}.image-dialog img{max-width:88vw;max-height:82vh;width:auto;height:auto;object-fit:contain;margin:auto}.image-dialog p{margin:10px 0 0;text-align:center;font-size:13px}
html[dir=rtl] .nav-wrap,html[dir=rtl] .offer-row{direction:rtl}html[dir=rtl] .site-header{direction:ltr}html[dir=rtl] .product-picker,html[dir=rtl] .about-copy{text-align:start}
@media(min-width:1700px){.hero,.hero-copy{min-height:600px}.hero-home,.hero-home .hero-copy{min-height:640px}}
@media(max-width:1050px){.container{width:82%}.site-nav{gap:22px}.nav-wrap{gap:20px}.brand img{width:85px}.hero{width:88%}.hero-copy h1,.hero-copy h2{font-size:38px}.offer-row{gap:20px}.btn{min-width:150px;font-size:17px;padding:12px 25px}.home-swatches{gap:25px}.product-config{gap:30px}.stone-grid{grid-template-columns:repeat(6,minmax(0,1fr))}.contact-layout{gap:40px}.footer-grid{gap:30px}.floating-contact{right:8px}.floating-contact a,.floating-contact button{width:40px;height:40px;padding:8px}.about-intro{gap:30px;grid-template-columns:150px 1fr}.section-action-row{flex-wrap:wrap}}
@media(max-width:760px){.container{width:calc(100% - 48px)}.page-kicker{font-size:14px;padding:22px 20px}.hero{width:100%;min-height:420px}.hero-copy{min-height:420px;padding:140px 30px 70px}.hero-home,.hero-home .hero-copy{min-height:510px}.site-header{padding:22px 24px;align-items:flex-start;gap:12px}.brand img{width:72px}.nav-wrap{flex-wrap:wrap;justify-content:flex-end;gap:15px}.site-nav{gap:17px}.site-nav a{font-size:12px}.language-control select{font-size:12px;padding:4px 9px;max-width:140px}.hero-copy h1,.hero-copy h2,.intro-slide h1{font-size:32px}.hero-copy p{font-size:17px}.home-products{padding-top:55px}.product-section{margin-bottom:70px}.section-heading{font-size:28px}.section-subtitle{font-size:15px;margin-bottom:24px}.banner{height:100px}.home-swatches{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px 22px;margin:30px 0}.home-swatch img{max-width:105px}.home-swatch span{font-size:11px}.offer-row{flex-wrap:wrap;margin-top:28px;gap:24px}.price{font-size:49px}.actions{gap:12px;width:100%}.actions>.btn{flex:1;min-width:0}.btn{font-size:17px;min-height:48px;padding:12px 20px}.content-section{padding-block:50px}.about-intro{grid-template-columns:1fr;gap:22px;margin-bottom:30px}.about-intro h2{font-size:30px}.about-copy{font-size:16px}.display-heading{font-size:30px}.reports-grid{gap:12px}.reports-grid a{padding:5px}.detail-note{font-size:13px}.section-action-row{font-size:17px}.services-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:45px 18px;padding-block:60px}.service-item h3{font-size:17px}.service-icon{width:58px;height:58px}.contact-heading h2{font-size:32px}.contact-heading p{font-size:15px}.contact-banner{height:100px;margin-bottom:30px}.contact-layout{grid-template-columns:1fr;gap:40px}.contact-details{gap:30px}.contact-detail{font-size:16px}.product-config{grid-template-columns:1fr;gap:35px}.main-image-button{max-width:560px;margin:auto}.gallery-thumbs{max-width:560px;margin-inline:auto}.product-picker h2{font-size:29px}.stone-grid{grid-template-columns:repeat(6,minmax(0,1fr));gap:12px 9px}.spec-list{grid-template-columns:1fr;gap:17px}.detail-section{padding-block:28px}.detail-section>h2{font-size:26px}.detail-gallery{gap:25px}.closing-cta{padding-block:45px}.closing-cta h2{font-size:23px}.footer-grid{width:calc(100% - 48px);grid-template-columns:1fr 1fr;gap:35px;padding-bottom:45px}.footer-grid>div:last-child{grid-column:1/-1}.footer-grid h3{font-size:18px}.footer-links{font-size:14px}.site-footer{margin-top:40px;padding-bottom:65px}.floating-contact{top:auto;bottom:12px;right:12px;transform:none;display:flex;gap:7px}.floating-contact a,.floating-contact button{width:42px;height:42px;background:#fff;box-shadow:0 2px 15px #0002}.toast{inset:auto 15px 73px auto;max-width:90%}.image-dialog{max-width:96vw}.contact-dialog{padding:35px 22px}.wechat-id{font-size:26px}}
@media(max-width:360px){.container{width:calc(100% - 32px)}.site-header{padding:20px 16px}.site-nav{gap:10px}.brand img{width:60px}.hero-copy h1,.hero-copy h2{font-size:28px}.stone-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.home-swatch img{max-width:85px}.btn{font-size:15px}.floating-contact a,.floating-contact button{width:38px;height:38px}.footer-grid{width:calc(100% - 32px)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}

/* 2026-11-06: original report artwork and one responsive variant-selector instance. */
.quality-reports{grid-template-columns:repeat(4,minmax(0,1fr));max-width:none}
.report-heading{font-size:21px;line-height:1.5;margin:40px 0 22px}
.report-overview{display:block;background:#f6f6f6;border-radius:12px;overflow:hidden}
.report-overview img{width:100%;height:auto}
.reports-grid a:focus-visible,.report-overview:focus-visible{outline:3px solid #2876cf;outline-offset:5px}
.picker-slot{min-width:0}
.variant-dialog,.mobile-product-dock,.mobile-variant-trigger{display:none}
@media(max-width:760px){
  body[data-page=product]{padding-bottom:calc(88px + env(safe-area-inset-bottom,0px))}
  body[data-page=product] .floating-contact{display:none}
  .picker-slot{display:none}
  .mobile-variant-trigger{display:grid;grid-template-columns:1fr auto;gap:9px 12px;align-items:center;width:100%;border:1px solid #e7e7e7;border-radius:12px;padding:18px;background:#fafafa;color:#111;text-align:start;font-size:14px}
  .mobile-variant-trigger>span:first-child{grid-column:1}
  .mobile-variant-trigger>span:nth-child(2){grid-column:1;color:#666}
  .mobile-variant-trigger>span:last-child{grid-column:2;grid-row:1/3;font-size:30px}
  .mobile-product-dock{position:fixed;z-index:18;inset:auto 0 0;display:grid;grid-template-columns:64px 1fr 1fr;gap:8px;align-items:stretch;background:#fff;border-top:1px solid #eee;box-shadow:0 -5px 25px #00000008;padding:10px 12px calc(10px + env(safe-area-inset-bottom,0px))}
  .mobile-product-dock button,.dock-support{display:flex;align-items:center;justify-content:center;min-height:48px;min-width:0;padding:8px;border-radius:8px;font-size:12px;line-height:1.35;font-weight:600;text-decoration:none;text-align:center;overflow-wrap:anywhere}
  .dock-support{font-size:11px;color:#555}
  .dock-choose{color:#111;background:#f4f4f4;border:1px solid #e5e5e5}
  .dock-consult{color:#fff;background:var(--green);border:1px solid var(--green)}
  body.variant-open{position:fixed;overflow:hidden;width:100%;left:0;right:0}
  .variant-dialog[open]{display:flex;flex-direction:column;position:fixed;inset:auto 0 0;width:100%;max-width:640px;max-height:calc(100dvh - 24px);margin:0 auto;border:0;border-radius:22px 22px 0 0;padding:18px 20px calc(16px + env(safe-area-inset-bottom,0px));overflow:hidden;box-shadow:0 -8px 40px #0002}
  .variant-dialog::backdrop{background:#0008}
  .variant-sheet-head{display:flex;align-items:center;gap:14px;padding-bottom:12px;border-bottom:1px solid #eee;flex-shrink:0}
  .variant-sheet-head img{width:62px;height:62px;object-fit:cover;border-radius:8px;border:1px solid #eee}
  .sheet-image-button{flex:0 0 62px;width:62px;height:62px;padding:0;border:0;border-radius:8px;background:none;cursor:zoom-in}
  .sheet-image-button:focus-visible{outline:3px solid #00a818;outline-offset:3px}
  .variant-sheet-head h2{font-size:17px;line-height:1.45;margin:0;flex:1;padding-inline-end:6px}
  .sheet-close{align-self:flex-start;flex-shrink:0;width:40px;height:40px;border:0;border-radius:50%;background:#f5f5f5;color:#444;font-size:28px;line-height:1}
  [data-sheet-content]{display:flex;min-height:0}
  .variant-dialog .product-picker{width:100%;display:flex;flex-direction:column;min-height:0;max-height:calc(100dvh - 154px);height:min(72dvh,720px)}
  .variant-dialog .product-picker>h2{display:none}
  .variant-dialog .product-unit-price{margin:10px 0;flex-shrink:0;font-size:15px}
  .variant-dialog .product-unit-price strong{font-size:27px}
  .picker-options{min-height:0;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;padding:4px 4px 8px;flex:1}
  .variant-dialog .stone-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:16px 12px}
  .variant-dialog .stone-option{min-height:44px;min-width:44px}
  .variant-dialog .stone-option small{font-size:10px;line-height:1.45}
  .variant-dialog .weight-options button{min-height:44px;max-width:100%;font-size:14px;padding:8px 18px}
  .variant-dialog .estimate{margin:18px 0 10px}
  .variant-dialog .picker-inquiry{flex-shrink:0;min-height:50px;margin-top:10px;border-radius:10px;font-size:16px}
  .quality-reports{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .report-heading{font-size:18px;margin-top:30px}
}
@media(max-width:360px){
  .variant-dialog[open]{padding-inline:14px}
  .variant-dialog .stone-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
  .mobile-product-dock{grid-template-columns:48px 1fr 1fr;gap:6px;padding-inline:8px}
}