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0;font-size:.75rem;line-height:1.7}.china-inset{border-top:1px solid var(--sth-white);width:20rem;padding:1.2rem;position:absolute;bottom:2rem;right:2rem}@supports (color:color-mix(in lab, red, red)){.china-inset{border-top:1px solid color-mix(in oklch, var(--sth-white) 35%, transparent)}}.china-inset{background:var(--sth-blue-deep)}@supports (color:color-mix(in lab, red, red)){.china-inset{background:color-mix(in oklch, var(--sth-blue-deep) 72%, transparent)}}.china-inset{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.china-inset>div{flex-wrap:wrap;gap:.5rem;margin-top:1rem;display:flex}.china-inset button{border:1px solid var(--sth-white);padding:.45rem .75rem}@supports (color:color-mix(in lab, red, red)){.china-inset button{border:1px solid color-mix(in oklch, var(--sth-white) 28%, transparent)}}.china-inset button{color:var(--sth-white);cursor:default;background:0 0;font-size:.7rem;transition:background .2s,color .2s}.china-inset button:hover{color:var(--sth-blue-deep);background:var(--sth-white)}.map-exploration{margin:0;font-size:clamp(1rem,1.8vw,1.6rem);font-weight:300;line-height:1.45;position:absolute;bottom:2rem;left:2rem}.product-portfolio{border-top:1px solid var(--sth-line)}.product-tabs{grid-template-columns:repeat(3,1fr);display:grid}.product-tabs button{border:0;border-right:1px solid var(--sth-line);min-height:4.5rem;color:var(--sth-muted);cursor:pointer;text-align:left;background:0 0;align-items:center;gap:1rem;padding:0 1.2rem;display:flex;position:relative}.product-tabs button:last-child{border-right:0}.product-tabs button span{color:var(--sth-blue);font-family:var(--font-plex-mono), monospace;font-size:.6rem}.product-tabs button i{height:2px;position:absolute;bottom:0;left:0;right:0;overflow:hidden}.product-tabs button i:after{content:"";background:var(--sth-blue);transform-origin:0;position:absolute;inset:0;transform:scaleX(0)}.product-tabs button.is-active{color:var(--sth-ink)}.product-tabs button.is-active i:after{animation:productProgress var(--product-ms) linear forwards}.product-layout{border-top:1px solid var(--sth-line);grid-template-columns:1fr 1fr;min-height:47rem;animation:.55s both productIn;display:grid}.product-visual{background:oklch(95.5% .006 240);place-items:center;min-width:0;display:grid;position:relative;overflow:hidden}.product-visual>p{color:var(--sth-steel);font-family:var(--font-plex-mono), monospace;letter-spacing:.14em;margin:0;font-size:.62rem;position:absolute;top:1.5rem;left:2rem}.product-visual img{object-fit:cover;mix-blend-mode:multiply;width:100%;height:100%}.product-details{padding:clamp(3rem,6vw,6rem)}.product-details>p{color:var(--sth-blue);font-family:var(--font-plex-mono), monospace;letter-spacing:.13em;margin:0;font-size:.67rem}.product-details h3{letter-spacing:-.055em;margin:1rem 0 1.3rem;font-size:clamp(3rem,5vw,5.8rem);font-weight:300}.product-intro{max-width:34rem;color:var(--sth-steel);line-height:1.8}.product-details h4{border-bottom:1px solid var(--sth-line);margin:3rem 0 0;padding-bottom:.8rem;font-size:1.25rem;font-weight:400}.use-list>div{border-bottom:1px solid var(--sth-line);grid-template-columns:.75fr 1.25fr;gap:2rem;padding:1rem 0;display:grid}.use-list strong{font-size:.82rem;font-weight:500}.use-list span{color:var(--sth-steel);font-size:.78rem;line-height:1.6}.market-demand{color:var(--sth-white);background:var(--sth-blue-deep);margin-top:2rem;padding:1.3rem}.market-demand span{color:var(--sth-copper-pale);font-family:var(--font-plex-mono), monospace;letter-spacing:.12em;font-size:.55rem}.market-demand p{opacity:.8;margin:.7rem 0 0;font-size:.78rem;line-height:1.7}.strengths-section{background:var(--sth-white);padding:clamp(7rem,12vw,12rem) clamp(1.3rem,8vw,9rem)}.strengths-copy{text-align:center;place-items:start center;min-height:24rem;display:grid}.strengths-copy h2{letter-spacing:-.035em;max-width:64rem;margin:3rem auto 0;font-size:clamp(1.8rem,3.1vw,3.2rem);font-weight:300;line-height:1.55}.key-numbers{grid-template-columns:1.1fr 1fr 1fr;align-items:end;gap:clamp(2rem,5vw,6rem);margin-top:5rem;display:grid}.key-title h3{letter-spacing:-.05em;margin:1.2rem 0 .6rem;font-size:clamp(2.5rem,4vw,4.5rem);font-weight:300}.key-title small{color:var(--sth-muted)}.metric{border-top:2px solid var(--sth-blue);flex-direction:column;justify-content:flex-end;min-height:13rem;padding-top:1.2rem;display:flex}.metric strong{font-family:var(--font-barlow), sans-serif;letter-spacing:-.04em;font-size:clamp(4rem,7vw,7.8rem);font-weight:400;line-height:.85}.metric strong em{font-family:var(--font-plex), sans-serif;margin-left:.4rem;font-size:.24em;font-style:normal;font-weight:400}.metric>span{margin-top:2rem;font-size:1rem}.metric>small{color:var(--sth-muted);font-family:var(--font-plex-mono), 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--tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}:where(#people,#footprint,#materials,#strengths,#vision,#contact){scroll-margin-block:5rem}.slide-content h1,.section-heading-simple h2,.team-person h3,.product-details h3,.strengths-copy h2,.key-title h3,.vision-copy h2,.responsibility-section 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.2s}.scroll-nav a:hover{opacity:1}.section-heading-simple{z-index:2;padding:clamp(6rem,10vw,10rem) clamp(1.5rem,8vw,9rem) clamp(3.5rem,6vw,6rem);position:relative}.section-heading-simple h2{transform-origin:0;margin:0;font-size:clamp(4.5rem,10vw,10rem);font-weight:250;line-height:.9;transform:scaleY(1.05)}.people-section.people-section-v2{padding:0}.people-heading{background:var(--sth-white)}.team-stage{min-height:88svh;color:var(--sth-white);background:var(--sth-dark);position:relative;overflow:hidden}.team-person{isolation:isolate;background-position:50%;background-size:cover;width:56%;position:absolute;inset-block:0;overflow:hidden}.team-person:before{content:"";z-index:-1;background:linear-gradient(#04121d0f 28%,#04121de6 100%);position:absolute;inset:0}.team-edward{clip-path:polygon(0 0,100% 0,86% 100%,0 100%);background-image:url(/images/sth-copper-port-hero.webp);background-position:22%;left:0}.team-zishuo{clip-path:polygon(14% 0,100% 0,100% 100%,0 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