.bgem{--paper:#f6f4ed;--green:#193b2e;--muted:#586c62;--orange:#c85028;--line:#d1d9d1;background:var(--paper);color:var(--green);font-family:Arial,"Microsoft YaHei",sans-serif;font-size:18px;line-height:1.7;padding:1px 0}.bgem *{box-sizing:border-box}.bgem .bgem-shell{width:min(1440px,calc(100% - 96px));margin:auto}.bgem a{color:inherit;text-underline-offset:6px}.bgem :is(h1,h2,h3){color:var(--green)!important;font-family:inherit;clear:none}.bgem h1{font-size:clamp(36px,3.4vw,60px)!important;line-height:1.08;letter-spacing:-1.5px;margin:0 0 28px;overflow-wrap:anywhere}.bgem h2{font-size:clamp(30px,2.8vw,44px)!important;line-height:1.18;letter-spacing:-1px;margin:0}.bgem :is(a,button,input,textarea):focus-visible{outline:3px solid var(--orange);outline-offset:5px}.bgem .bgem-crumb{display:flex;flex-wrap:wrap;gap:16px;margin:38px 0;color:var(--muted);font-size:19px}.bgem .bgem-hero{display:grid;grid-template-columns:1.12fr 1fr;gap:64px;align-items:start}.bgem figure{margin:0}.bgem .bgem-photo{display:flex;aspect-ratio:4/3;background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden;align-items:center;justify-content:center}.bgem .bgem-photo img{width:100%!important;height:100%!important;max-height:100%;object-fit:contain;transition:transform .4s}.bgem .bgem-photo:hover img{transform:scale(1.025)}.bgem .bgem-thumbs{display:flex;gap:12px;overflow-x:auto;padding:12px 3px}.bgem .bgem-thumbs button{background:white;border:1px solid var(--line);padding:5px;border-radius:4px;flex:0 0 80px;cursor:pointer}.bgem .bgem-thumbs button[aria-pressed=true]{border:2px solid var(--orange)}.bgem .bgem-thumbs img{width:65px;height:65px;object-fit:contain}.bgem .bgem-empty{border:1px solid var(--line);padding:32px}.bgem .bgem-eyebrow{font-size:13px;letter-spacing:2.4px;color:var(--orange);font-weight:700;margin:0 0 18px}.bgem .bgem-lead{font-size:20px;color:var(--muted)}.bgem .bgem-lead p{margin:0 0 16px}.bgem .bgem-identity{border-top:1px solid var(--line);margin:26px 0;padding:18px 0}.bgem .bgem-identity dt{font-size:12px;letter-spacing:1px;text-transform:uppercase;color:var(--muted)}.bgem .bgem-identity dd{margin:0;font-weight:600;overflow-wrap:anywhere}.bgem .bgem-button{display:block;width:100%;background:var(--orange)!important;color:white!important;padding:17px 24px;border:0;border-radius:4px;font-size:18px;font-weight:700;text-align:center;text-decoration:none;cursor:pointer;transition:transform .2s,background .2s}.bgem .bgem-button:hover{background:#ab401e!important;transform:translateY(-2px)}.bgem .bgem-note{font-size:14px;color:var(--muted);margin:12px 0 20px}.bgem .bgem-nav{display:flex;gap:32px;border-bottom:1px solid var(--line);margin-top:48px;padding:18px 0;position:sticky;top:0;background:var(--paper);z-index:5;overflow-x:auto}.admin-bar .bgem .bgem-nav{top:32px}.bgem .bgem-nav a{text-decoration:none;padding:8px 0;font-weight:600;border-bottom:2px solid transparent;white-space:nowrap}.bgem .bgem-nav a:hover{border-color:var(--orange)}.bgem .bgem-block{padding:56px 0;scroll-margin-top:110px}.bgem .bgem-table-wrap{margin-top:28px;overflow:auto}.bgem table{border-collapse:collapse;width:100%;margin:0}.bgem th,.bgem td{border:0;border-bottom:1px solid var(--line);padding:16px 24px;text-align:left;vertical-align:top;overflow-wrap:anywhere}.bgem th{width:34%;font-weight:600;background:#ece9e0}.bgem .bgem-description{margin-top:28px;max-width:100%;overflow-wrap:anywhere}.bgem .bgem-description>p,.bgem .bgem-description>ul,.bgem .bgem-description>ol{max-width:960px}.bgem .bgem-description img{max-width:100%;height:auto}.bgem .bgem-description table{display:block;overflow:auto}.bgem .bgem-ordering{display:grid;grid-template-columns:1fr 1.2fr;gap:64px;background:#ece9e0;padding:48px;border-radius:8px}.bgem .bgem-ordering ol{margin:0;padding-left:25px}.bgem .bgem-ordering li{padding:0 0 20px 12px}.bgem .bgem-ordering li::marker{color:var(--orange)}.bgem .bgem-ordering li p{font-size:16px;color:var(--muted);margin:4px 0}.bgem .bgem-inquiry{background:var(--green);color:var(--paper);display:grid;grid-template-columns:.8fr 1.2fr;gap:64px;padding:48px;border-radius:8px;margin-top:32px}.bgem .bgem-inquiry h2{color:var(--paper)!important}.bgem .bgem-selected{border-top:1px solid #597064;margin-top:40px;padding-top:20px;display:flex;flex-direction:column;overflow-wrap:anywhere}.bgem .bgem-selected small{color:#c3d0c6}.bgem .bgem-form{background:var(--paper);color:var(--green);padding:32px;border-radius:6px;min-width:0}.bgem label{display:block;font-size:15px;font-weight:600;margin-bottom:20px}.bgem :is(input,textarea){display:block;width:100%;border:1px solid var(--line);border-radius:3px;margin-top:8px;padding:12px;background:white;color:var(--green);font:inherit;font-size:16px}.bgem textarea{resize:vertical}.bgem .bgem-pair{display:grid;grid-template-columns:1fr 1fr;gap:20px}.bgem .bgem-actions{display:flex;gap:16px;flex-wrap:wrap}.bgem .bgem-actions button{background:white;color:var(--green);border:1px solid var(--line);padding:8px 16px;cursor:pointer;border-radius:3px}.bgem [hidden]{display:none!important}.bgem .bgem-back{padding:32px 0}.bgem .bgem-gallery,.bgem .bgem-intro{animation:bgem-entry .55s ease-out both}.bgem .bgem-intro{animation-delay:.08s}@keyframes bgem-entry{from{opacity:.7;transform:translateY(12px)}to{opacity:1;transform:none}}@media(max-width:1000px){.bgem .bgem-shell{width:calc(100% - 48px)}.bgem .bgem-hero{gap:32px}.bgem .bgem-inquiry{gap:32px;padding:32px}}@media(max-width:760px){.bgem .bgem-shell{width:calc(100% - 32px)}.bgem .bgem-crumb{font-size:16px;gap:10px;margin:24px 0}.bgem .bgem-hero,.bgem .bgem-ordering,.bgem .bgem-inquiry{grid-template-columns:1fr;gap:28px}.bgem .bgem-nav{gap:22px;font-size:16px;margin-top:32px}.admin-bar .bgem .bgem-nav{top:46px}.bgem .bgem-block{padding:36px 0}.bgem .bgem-ordering,.bgem .bgem-inquiry{padding:24px}.bgem .bgem-pair{grid-template-columns:1fr;gap:0}.bgem .bgem-form{padding:20px}.bgem .bgem-lead{font-size:18px}.bgem th,.bgem td{padding:12px}.bgem th{width:40%}}@media(prefers-reduced-motion:reduce){.bgem *{animation:none!important;transition:none!important}.bgem .bgem-photo:hover img,.bgem .bgem-button:hover{transform:none}}

.bgem .bgem-related{border-top:1px solid var(--line)}
.bgem .bgem-related-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
.bgem .bgem-related-heading>a{font-size:16px;white-space:nowrap}
.bgem .bgem-related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.bgem .bgem-related-card{background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden;min-width:0;transition:transform .25s,border-color .25s}
.bgem .bgem-related-card:hover{transform:translateY(-4px);border-color:var(--green)}
.bgem .bgem-related-link{display:flex;flex-direction:column;height:100%;text-decoration:none}
.bgem .bgem-related-link:focus-visible{outline-offset:-5px}
.bgem .bgem-related-image{aspect-ratio:4/3;padding:20px;background:#fff;overflow:hidden}
.bgem .bgem-related-image img{display:block;width:100%!important;height:100%!important;object-fit:contain;transition:transform .3s}
.bgem .bgem-related-link:hover img{transform:scale(1.035)}
.bgem .bgem-related-copy{padding:24px;display:flex;flex-direction:column;flex:1;border-top:1px solid var(--line)}
.bgem .bgem-related-copy h3{font-size:23px!important;line-height:1.3;margin:0 0 24px;overflow-wrap:anywhere}
.bgem .bgem-related-action{font-size:16px;font-weight:600;text-decoration:underline;text-underline-offset:6px;margin-top:auto}
.bgem .bgem-related-example{font-size:13px;color:var(--muted);margin:0 0 12px}
@media(max-width:1000px){.bgem .bgem-related-grid{gap:16px}.bgem .bgem-related-copy{padding:18px}.bgem .bgem-related-copy h3{font-size:20px!important}}
@media(max-width:760px){.bgem .bgem-related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.bgem .bgem-related-heading{align-items:start;flex-direction:column;gap:16px}.bgem .bgem-related-image{padding:12px}.bgem .bgem-related-copy{padding:16px}}
@media(max-width:480px){.bgem .bgem-related-grid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){.bgem .bgem-related-card:hover,.bgem .bgem-related-link:hover img{transform:none}}

.bgem .screen-reader-text{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.bgem .bgem-highlights{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));margin:24px 0;gap:12px}
.bgem .bgem-highlights>div{padding:16px;background:#ece9e0;border-radius:4px;min-width:0}
.bgem .bgem-highlights dt{font-size:13px;color:var(--muted);margin-bottom:6px}
.bgem .bgem-highlights dd{margin:0;font-size:19px;font-weight:600;line-height:1.4;overflow-wrap:anywhere}
.bgem .bgem-summary{max-width:960px;color:var(--muted);margin-top:24px}
.bgem .bgem-spec-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;margin-top:30px;align-items:start}
.bgem .bgem-spec-group h3{font-size:22px!important;line-height:1.4;margin:0}
.bgem .bgem-spec-group .bgem-table-wrap{margin-top:14px}
.bgem .bgem-resources{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:24px}
.bgem .bgem-resources>a{display:flex;flex-direction:column;padding:22px;border:1px solid var(--line);border-radius:6px;text-decoration:none;background:#fff}
.bgem .bgem-resources>a:hover{border-color:var(--green)}
.bgem .bgem-resources span{font-size:14px;color:var(--muted);margin-top:8px}
.bgem .bgem-related-facts{margin:0 0 24px;font-size:14px;color:var(--muted)}
.bgem .bgem-related-facts div{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-top:1px solid var(--line)}
.bgem .bgem-related-facts dd{margin:0;text-align:right}
.bgem .bgem-fields{border:0;padding:0;margin:0;min-width:0}
.bgem .bgem-button:disabled{opacity:.55;cursor:not-allowed;transform:none}
.bgem .bgem-no-script{font-size:14px;color:var(--muted)}
.bgem .bgem-nav{top:calc(var(--bgem-header-offset,0px) + var(--bgem-admin-offset,0px))}
.admin-bar .bgem{--bgem-admin-offset:32px}
.bgem .bgem-block{scroll-margin-top:calc(110px + var(--bgem-header-offset,0px) + var(--bgem-admin-offset,0px))}
.bgem .bgem-nav a[aria-current=location]{border-bottom-color:var(--orange);color:var(--green)}
.bgem .bgem-description :is(h2,h3,h4,h5,h6){margin-top:28px;margin-bottom:16px}
@media(max-width:1000px){.bgem .bgem-spec-groups{gap:20px}}
@media(max-width:782px){.admin-bar .bgem{--bgem-admin-offset:46px}}
@media(max-width:760px){.bgem .bgem-spec-groups{grid-template-columns:1fr}.bgem .bgem-nav{top:calc(var(--bgem-header-offset,0px) + var(--bgem-admin-offset,0px))}}
@media(max-width:480px){.bgem .bgem-resources{grid-template-columns:1fr}.bgem .bgem-highlights dd{font-size:17px}}

.bgem .bgem-colors{border:0;padding:0;margin:24px 0;min-width:0}
.bgem .bgem-colors legend{font-size:16px;font-weight:600;margin-bottom:12px}
.bgem .bgem-color-list{display:flex;flex-wrap:wrap;gap:10px}
.bgem .bgem-color-list button{border:1px solid var(--line);border-radius:5px;background:#fff;color:var(--green);padding:10px 14px;min-height:48px;cursor:pointer;display:flex;align-items:center;gap:8px;font:inherit;font-size:15px}
.bgem .bgem-color-list button[aria-pressed=true]{border-color:var(--orange);box-shadow:inset 0 0 0 1px var(--orange)}
.bgem .bgem-color-list img{width:48px;height:48px;object-fit:contain}
.bgem .bgem-thumbs span{display:block;font-size:12px;color:var(--green);line-height:1.4;overflow-wrap:anywhere}
.bgem .bgem-image-caption{font-size:14px;color:var(--muted);margin-top:12px}
.bgem .bgem-feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;margin-top:28px}
.bgem .bgem-feature-grid article{border-top:1px solid var(--line);padding-top:22px;min-width:0}
.bgem .bgem-feature-grid img{width:100%;height:auto;max-height:360px;object-fit:contain;background:white;margin-bottom:18px}
.bgem .bgem-feature-grid h3{font-size:24px!important;margin:0 0 12px}
.bgem .bgem-feature-grid p{color:var(--muted);margin:0}
.bgem select{width:100%;margin-top:8px;padding:12px;border:1px solid var(--line);background:white;color:var(--green);font:inherit;font-size:16px;min-height:48px}
.bgem select:focus-visible{outline:3px solid var(--orange);outline-offset:5px}
@media(max-width:760px){.bgem .bgem-feature-grid{grid-template-columns:1fr}.bgem .bgem-feature-grid h3{font-size:22px!important}}

.bgem .bgem-spec-heading{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding-bottom:30px;border-bottom:1px solid var(--line)}
.bgem .bgem-spec-heading h2{font-size:clamp(30px,3.4vw,48px)!important;line-height:1.15}
.bgem .bgem-spec-heading .bgem-eyebrow{font-size:11px;margin-bottom:10px}
.bgem .bgem-spec-heading .bgem-summary{margin:0;font-size:16px;line-height:1.6;max-width:600px}
.bgem .bgem-spec-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:48px;margin-top:32px;align-items:start}
.bgem .bgem-spec-column{min-width:0;display:flex;flex-direction:column;gap:36px}
.bgem .bgem-spec-column:only-child{grid-column:1/-1}
.bgem .bgem-spec-column>.bgem-note{margin:0;font-size:15px;line-height:1.6}
.bgem .bgem-spec-group{display:block;padding:0;border:0;min-width:0}
.bgem .bgem-spec-group h3{font-size:26px!important;line-height:1.35;max-width:none;padding:0 0 20px;margin:0}
.bgem .bgem-spec-group .bgem-table-wrap{margin-top:0;min-width:0}
.bgem .bgem-spec-group table{table-layout:fixed}
.bgem .bgem-spec-label-col{width:33%}
.bgem .bgem-spec-group th{width:33%;background:transparent;font-weight:600;color:var(--green)}
.bgem .bgem-spec-group th,.bgem .bgem-spec-group td{padding:17px 12px;font-size:18px;line-height:1.55;border-bottom:1px solid var(--line);vertical-align:top;overflow-wrap:anywhere}
.bgem .bgem-spec-group tr:first-child>*{border-top:1px solid var(--line)}
.bgem .bgem-spec-group td{color:var(--muted)}
.bgem .bgem-spec-cta{display:inline-flex;width:auto;min-width:340px;margin-top:40px;padding:17px 26px;font-size:17px}
.bgem .bgem-spec-group th,.bgem .bgem-spec-group td{transition:background-color .2s ease}
.bgem .bgem-spec-group tr:hover td{background:#edece4}
.bgem .bgem-spec-group tr:hover th{background:#edece4}
.bgem .bgem-feature-grid article{transition:transform .22s ease,border-color .22s ease}
.bgem .bgem-feature-grid article:hover{transform:translateY(-3px);border-color:var(--orange)}
.bgem .bgem-color-list button{transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.bgem .bgem-color-list button:hover{transform:translateY(-2px);border-color:var(--orange)}
.bgem .bgem-nav a{transition:color .2s ease,border-color .2s ease}
.bgem .bgem-resources>a{transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.bgem .bgem-resources>a:hover{transform:translateY(-3px);box-shadow:0 10px 24px #193b2e0c}
@media(max-width:1000px){.bgem .bgem-spec-groups,.bgem .bgem-spec-heading{gap:28px}.bgem .bgem-spec-group h3{font-size:20px!important}}
@media(max-width:760px){.bgem .bgem-spec-groups,.bgem .bgem-spec-heading{grid-template-columns:1fr;gap:24px}.bgem .bgem-spec-heading{padding-bottom:24px}.bgem .bgem-spec-column{gap:28px}.bgem .bgem-spec-group th,.bgem .bgem-spec-label-col{width:36%}.bgem .bgem-spec-group th,.bgem .bgem-spec-group td{font-size:15px;padding:13px 8px}.bgem .bgem-spec-cta{width:100%;min-width:0}}
@media(prefers-reduced-motion:reduce){.bgem .bgem-feature-grid article:hover,.bgem .bgem-color-list button:hover,.bgem .bgem-resources>a:hover{transform:none}}
.bgem .bgem-hero{grid-template-columns:repeat(2,minmax(0,1fr));gap:48px;align-items:start}
.bgem .bgem-intro{min-width:0}
.bgem .bgem-intro h1{font-size:clamp(34px,3.15vw,48px)!important;line-height:1.12;letter-spacing:-1px;margin-bottom:20px}
.bgem .bgem-intro>.bgem-eyebrow{margin-bottom:12px}
.bgem .bgem-intro .bgem-lead{font-size:18px;line-height:1.6}
.bgem .bgem-intro .bgem-lead p{margin-bottom:12px}
.bgem .bgem-intro .bgem-highlights{gap:10px;margin:20px 0}
.bgem .bgem-intro .bgem-highlights>div{padding:12px 16px}
.bgem .bgem-intro .bgem-highlights dt{font-size:12px;margin-bottom:4px}
.bgem .bgem-intro .bgem-highlights dd{font-size:18px}
.bgem .bgem-intro .bgem-colors{margin:18px 0}
.bgem .bgem-intro .bgem-colors legend{margin-bottom:10px}
.bgem .bgem-intro .bgem-color-status{font-size:14px;line-height:1.6;margin:10px 0 0}
.bgem .bgem-intro>.bgem-button{font-size:17px;padding:15px 22px}
@media(max-width:1000px){.bgem .bgem-hero{gap:32px}}
@media(max-width:760px){.bgem .bgem-hero{grid-template-columns:1fr;gap:28px}.bgem .bgem-intro h1{font-size:32px!important;letter-spacing:-.6px}.bgem .bgem-intro .bgem-lead{font-size:17px}.bgem .bgem-intro .bgem-highlights dd{font-size:17px}}

.bgem .bgem-config-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:28px}
.bgem .bgem-config-grid article{padding:28px 32px;background:#ece9e0;border:1px solid var(--line);border-radius:6px}
.bgem .bgem-config-grid article:nth-child(2){background:transparent}
.bgem .bgem-config-grid article:only-child{grid-column:1/-1}
.bgem .bgem-config-grid h3{font-size:23px;margin:0 0 18px}
.bgem .bgem-config-grid ul{padding-left:20px;margin:0}
.bgem .bgem-config-grid li{padding:7px 0;border-bottom:1px solid var(--line);font-size:16px;overflow-wrap:anywhere}
.bgem .bgem-spec-groups{grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.bgem .bgem-spec-group h3{font-size:20px!important;min-height:54px}
.bgem .bgem-spec-group th,.bgem .bgem-spec-group td{font-size:15px;padding:15px 8px}
.bgem .bgem-feature-grid article img{max-height:200px;object-fit:contain;background:white}
@media(max-width:1000px){.bgem .bgem-spec-groups{grid-template-columns:1fr}.bgem .bgem-spec-group h3{min-height:0}}
@media(max-width:760px){.bgem .bgem-config-grid{grid-template-columns:1fr;gap:16px}.bgem .bgem-config-grid article{padding:24px}.bgem .bgem-config-grid h3{font-size:21px}}

.bgem .bgem-shell{margin-inline:auto!important;float:none!important;max-width:1440px}
.bgem .bgem-hero>*{min-width:0}.bgem .bgem-spec-groups{grid-template-columns:repeat(2,minmax(0,1fr))}
.bgem .bgem-spec-group:only-child{grid-column:1/-1}.bgem .bgem-faq{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;border-top:1px solid var(--line)}
.bgem .bgem-faq details{border-bottom:1px solid var(--line);padding:18px 0}.bgem .bgem-faq summary{font-weight:600;cursor:pointer;line-height:1.5;padding-right:12px}.bgem .bgem-faq details p{font-size:16px;color:var(--muted);margin:14px 0 0}
.bgem :is(select,summary):focus-visible{outline:3px solid var(--orange);outline-offset:4px}.bgem .bgem-faq details:first-child{padding-top:0}
@media(max-width:1000px){.bgem .bgem-spec-groups{grid-template-columns:1fr}}
@media(max-width:760px){.bgem .bgem-faq{grid-template-columns:1fr;gap:20px}.bgem .bgem-nav{position:static}.bgem .bgem-highlights dd{font-size:17px}.bgem .bgem-shell{width:calc(100% - 32px)}.bgem .bgem-form{padding:18px}.bgem .bgem-spec-label-col{width:42%}}
@media(max-width:380px){.bgem .bgem-inquiry{padding:18px}.bgem .bgem-form{padding:14px}.bgem .bgem-highlights{gap:8px}.bgem .bgem-highlights>div{padding:12px}}

.bgem .bgem-photo{aspect-ratio:3/2}.bgem h1{font-weight:700!important}