*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;font:17px/1.75 "Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;color:#183525;background:#fff}img{display:block;max-width:100%}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}header{height:96px;padding:0 6%;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #d8e2d8;background:rgba(255,255,255,.95);position:sticky;top:0;z-index:20;backdrop-filter:blur(16px)}.brand{display:flex;gap:20px;align-items:center}.brand-name{font-size:32px;font-weight:750;letter-spacing:2px;line-height:1.2;color:#1c633a}.brand-name small{display:block;font-size:11px;letter-spacing:2px;margin-top:8px}.brand-desc{border-left:1px solid #c2d5c7;padding-left:20px;font-size:15px;line-height:1.6;color:#4f6657}nav{display:flex;align-items:center;gap:30px;font-size:15px}nav a:hover{color:#20854b}.contact-link{background:#1d613b;color:white;padding:10px 22px}.menu{display:none}.hero{padding:70px 6% 0;background:#eef4ed;display:grid;grid-template-columns:1fr 1fr;position:relative;gap:20px}.hero-copy{padding:15px 0 45px}.eyebrow{font-size:12px;font-weight:650;color:#36754e;letter-spacing:2px;margin:0 0 22px}h1{font-size:clamp(45px,5.4vw,78px);line-height:1.23;font-weight:650;letter-spacing:-1.6px;margin:0 0 28px}h1 span{color:#24804b}h2{font-size:clamp(30px,3.2vw,46px);line-height:1.4;font-weight:600;margin:0}h3{font-size:23px;line-height:1.5;margin:16px 0 13px}.intro{color:#55715d;font-size:19px;line-height:1.95}.actions{display:flex;gap:24px;align-items:center;margin:35px 0}.button{background:#1d613b;color:white;padding:14px 24px;font-size:16px}.button:hover{background:#14492b}.plain-link{border-bottom:1px solid #527e60;font-size:15px;padding-bottom:4px}.hero-foot{display:flex;gap:0;font-size:14px;color:#65816b;margin-top:44px}.hero-foot span{padding:0 22px;border-left:1px solid #afc6b3}.hero-foot span:first-child{padding-left:0;border:0}.hero-product{position:relative;display:flex;flex-direction:column;justify-content:center;background:white;min-width:0}.hero-product img{width:100%;height:475px;object-fit:cover;object-position:center;mix-blend-mode:multiply}.vertical-label{position:absolute;right:13px;top:20px;writing-mode:vertical-rl;letter-spacing:2px;font-size:10px;color:#77967c}.product-caption{padding:15px 25px;display:flex;justify-content:space-between;align-items:center;gap:16px;border-top:1px solid #e3ebe3;font-size:14px}.product-caption span{font-size:12px;color:#6b8270}.hero-bottom{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;border-top:1px solid #c9d9ca;margin-top:16px;padding:23px 0;color:#53715a;font-size:14px}.hero-bottom p{margin:0}.hero-bottom>span{font-size:13px;letter-spacing:1px}.section{padding:94px 6%}.section-heading{text-align:center;max-width:720px;margin:0 auto 50px}.section-heading>p:last-child{color:#697d6d;margin-bottom:0}.needs-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:35px}.needs-grid article{border-top:2px solid #32784b;padding:26px 0}.index{font-size:40px;font-weight:300;color:#9ab79f}.needs-grid p{color:#64796a;font-size:16px}.solutions{background:#f5f7f3}.solution-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:40px}.solution-head>p{color:#6c8170;font-size:16px}.tabs{display:flex;border-bottom:1px solid #bbcebe;margin-bottom:36px;gap:28px}.tabs button{background:none;border:0;border-bottom:3px solid transparent;padding:16px 10px;color:#637b69;font-size:17px}.tabs button[aria-selected=true]{color:#1a6236;border-bottom-color:#236d3b;font-weight:700}.solution-panel{display:grid;grid-template-columns:1.25fr 1fr;gap:55px;align-items:center}.scene-photo{position:relative}.scene-photo img{width:100%;height:430px;object-fit:cover}.scene-photo>span{position:absolute;bottom:16px;left:16px;background:#fffdf5;padding:4px 12px;font-size:12px;color:#49654d}.scene-copy h3{font-size:29px;margin:0 0 22px}.scene-copy>p:not(.eyebrow){font-size:16px;color:#62796a}dl{margin:26px 0}dl div{display:flex;gap:22px;border-top:1px solid #d3dfd1;padding:14px 0;font-size:15px}dt{min-width:76px;color:#2e5e3e}dd{margin:0;color:#607265}.material{background:#15452c;color:#fff}.material .eyebrow{color:#99d4ac}.material-top{max-width:680px}.material-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-top:60px}.material-grid article{border-top:1px solid #4d7e5d;padding-top:28px}.material-grid span{font-size:12px;letter-spacing:1.5px;color:#9bceaa}.material-grid p{color:#b5cdbd;font-size:16px}.data{display:grid;grid-template-columns:.9fr 1.3fr;gap:80px}.data-intro>p:last-child{color:#6c8070;font-size:16px;max-width:360px;margin-top:25px}.data-list{display:grid;grid-template-columns:1fr 1fr;gap:30px}.data-list>div{border-top:1px solid #b8ccbc;padding-top:18px}.data-list span{display:block;font-size:15px;color:#5c7162}.data-list strong{font-size:36px;color:#236c3e;font-weight:500;letter-spacing:-1px;display:block;margin-top:12px}.data-list small{font-size:23px;margin-left:3px}.data-list p{font-size:13px;color:#6f8273;margin:6px 0 0}.data-note{grid-column:1/-1;font-size:13px;line-height:1.9;color:#78867a;border-top:1px solid #d9e3d8;padding-top:20px;margin:0}.process{background:#eef4ed}.process-grid{list-style:none;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:38px;margin:0}.process-grid span{display:block;width:44px;height:44px;border:1px solid #9bbaa5;border-radius:50%;text-align:center;line-height:42px;color:#34704a;font-size:15px}.process-grid p{font-size:16px;color:#687c6c}.contact{background:#fff;padding:80px 8%;display:grid;grid-template-columns:1.5fr 1fr;gap:60px;align-items:center}.contact-copy>p:not(.eyebrow){color:#66806d}.contact dl{max-width:500px}.qr-card{justify-self:end;text-align:center;background:#f1f6ef;padding:27px;width:275px;border:1px solid #d1e0ce}.qr-card #qr{background:white;aspect-ratio:1;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:14px;padding:18px;color:#64806b}.qr-card strong{font-size:17px}.qr-card span{font-size:12px}.qr-card>p{font-size:13px;margin:18px 0 0;color:#657e6c}#qr img{width:100%;height:100%;object-fit:contain}footer{background:#103c25;color:#c0d8c5;display:flex;justify-content:space-between;align-items:center;padding:32px 6%;font-size:14px}footer .brand-name{color:#fff;font-size:25px}footer .brand-name small{color:#acd0b7}.skip{position:absolute;top:-100px;background:#155b35;color:white;padding:10px;z-index:100}.skip:focus{top:10px}:focus-visible{outline:3px solid #218850;outline-offset:5px}@media(min-width:1650px){.section,.hero,header,footer{padding-left:max(6%,calc((100vw - 1450px)/2));padding-right:max(6%,calc((100vw - 1450px)/2))}}@media(max-width:1100px){nav{gap:20px}.hero-product img{height:430px}.product-caption{flex-direction:column;align-items:start;gap:3px}.solution-panel{gap:30px}.data{gap:40px}.data-list strong{font-size:30px}.brand-desc{font-size:13px;padding-left:13px}.brand{gap:13px}}@media(max-width:820px){header{height:80px;padding:0 5%}.brand-name{font-size:27px}.brand-desc{font-size:12px}nav{display:none;position:absolute;top:80px;left:0;right:0;background:white;flex-direction:column;align-items:stretch;padding:22px 5%;border-bottom:1px solid #d1e0d3}nav.open{display:flex}.menu{display:block;background:none;border:1px solid #7caa8b;color:#1e6037;padding:6px 12px;font-size:14px}.hero{padding:45px 5% 0;grid-template-columns:1fr;gap:10px}.hero-copy{padding:0 0 22px}h1{font-size:53px}.intro{font-size:17px}.hero-foot{margin-top:28px}.hero-product img{height:390px;object-fit:contain}.product-caption{flex-direction:row}.vertical-label{display:none}.hero-bottom{padding:20px 0}.section{padding:60px 5%}.section-heading{margin-bottom:35px}.needs-grid,.material-grid{grid-template-columns:1fr;gap:22px}.needs-grid article{padding:20px 0 0}.needs-grid h3{display:inline-block;margin-left:20px}.index{font-size:30px}.solution-head{display:block}.solution-head>p{margin:20px 0}.tabs{gap:0;justify-content:space-between}.tabs button{font-size:14px;padding:14px 5px}.solution-panel{grid-template-columns:1fr;gap:30px}.scene-photo img{height:320px}.scene-copy h3{font-size:27px}.material-grid{margin-top:35px;gap:30px}.data{grid-template-columns:1fr;gap:35px}.data-intro>p:last-child{max-width:none}.data-list{gap:28px 22px}.data-list strong{font-size:29px}.data-list p{font-size:12px}.process-grid{grid-template-columns:1fr 1fr;gap:25px}.process-grid h3{font-size:20px}.process-grid p{font-size:15px}.contact{padding:60px 5%;grid-template-columns:1fr;gap:30px}.qr-card{justify-self:start}footer{flex-wrap:wrap;gap:22px}footer p{width:100%;order:3;margin:0}h2{font-size:33px}.eyebrow{font-size:11px;letter-spacing:1.2px}}@media(max-width:380px){h1{font-size:47px}.brand-desc{font-size:11px}.brand-name{font-size:24px}.brand-name small{font-size:9px}.hero-product img{height:320px}.product-caption{display:block}.product-caption span{display:block}.data-list strong{font-size:25px}.actions{gap:16px}.button{font-size:14px;padding:12px 15px}.plain-link{font-size:14px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* Official packaging identity */
.brand-mark{width:45px;height:58px;flex:none;background-image:url('packaging.jpg');background-repeat:no-repeat;background-size:940px 404px;background-position:-431px -99px}.brand{gap:14px}.brand-desc{padding-left:14px}.brand-name{font-size:29px}.hero-product img{object-fit:contain}.packaging{background:#fff;padding-top:72px;padding-bottom:62px}.packaging-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:28px}.packaging-head>p{font-size:15px;color:#727873;margin:0}.packaging-image{border:1px solid #e1e5df;background:#fff;padding:14px}.packaging-image img{width:100%;height:auto}.packaging-caption{font-size:13px;color:#7d837e;margin:12px 0 0}nav a{white-space:nowrap}.contact dd{overflow-wrap:anywhere}footer .brand-mark{background-color:white;border-radius:3px} @media(max-width:1100px){header nav{gap:19px}.brand-name{font-size:26px}.brand-mark{width:40px;height:55px;background-size:850px 365px;background-position:-390px -89px}}@media(max-width:820px){.brand{gap:10px}.brand-name{font-size:24px}.brand-mark{width:34px;height:48px;background-size:740px 318px;background-position:-339px -78px}.brand-desc{font-size:11px;padding-left:10px}.packaging-head{display:block}.packaging-head>p{margin-top:20px}.packaging-image{padding:4px}.packaging-image img{min-width:720px}.packaging-image{overflow:auto}.packaging-caption:after{content:" · 可左右滑动查看"}}@media(max-width:380px){header .brand-desc{display:none}.brand-name{font-size:23px}}.brand-mark{width:55px;height:76px;background-size:940px 404px;background-position:-430px -99px}@media(max-width:1100px){.brand-mark{width:49px;height:68px;background-size:850px 365px;background-position:-389px -89px}}@media(max-width:820px){.brand-mark{width:40px;height:54px;background-size:680px 292px;background-position:-311px -71px}}

/* Future material showcase */
.hero{isolation:isolate;overflow:hidden;background:#061b16;color:#eefdf4;padding-top:65px;gap:45px;background-image:radial-gradient(ellipse at 75% 42%,#126a493f,transparent 48%),linear-gradient(110deg,#061b16,#0a2c23);min-height:760px}
.hero:before{content:"";position:absolute;inset:0;z-index:-1;opacity:.15;background-image:linear-gradient(#69cc9540 1px,transparent 1px),linear-gradient(90deg,#69cc9540 1px,transparent 1px);background-size:64px 64px;mask-image:linear-gradient(90deg,transparent,#000)}
.hero-copy{position:relative;z-index:2;padding-top:25px}.hero .eyebrow{color:#83bfa0;font-size:11px}.tech-status{font-size:10px;letter-spacing:1.7px;color:#a4e5be;display:flex;gap:9px;align-items:center;margin:0 0 22px}.tech-status i{width:6px;height:6px;background:#9bffb5;border-radius:50%;box-shadow:0 0 12px #91ffa5}
.hero h1{font-size:clamp(45px,5vw,74px);font-weight:700;line-height:1.3;letter-spacing:-1px}.hero h1 span{color:#a6ffc2;text-shadow:0 0 35px #66f5a230}.hero .intro{color:#a5bfb3;font-size:17px}.hero .button{color:#09291e;background:#acffbf;border:1px solid #b8ffcb;box-shadow:0 0 25px #80ffb021}.hero .button:hover{background:#d1ffdb}.hero .plain-link{color:#b8d7c7;border-color:#719780}.hero-foot{color:#a4cdb6}.hero-foot span{border-color:#426756}.hero-bottom{color:#a3c5b1;border-color:#396b5159}.hero-bottom>span{font-size:10px;letter-spacing:1.8px}
.hero-product{align-self:center;min-height:510px;background:linear-gradient(145deg,#153c2eaa,#08251ecc);border:1px solid #73be9359;box-shadow:inset 0 0 50px #5effa008,0 20px 65px #0003;position:relative;padding:26px;border-radius:3px;z-index:1}
.hero-product:before,.hero-product:after{content:"";position:absolute;width:44px;height:44px;border-color:#a5ffbd;border-style:solid;pointer-events:none;z-index:4}.hero-product:before{top:-1px;left:-1px;border-width:2px 0 0 2px}.hero-product:after{bottom:-1px;right:-1px;border-width:0 2px 2px 0}
.product-label{display:flex;justify-content:space-between;color:#c8e4d4;font-size:12px;letter-spacing:1px;margin:0 0 20px}.product-label span{font-size:10px;color:#76b18f}.hero-product img{height:355px;object-fit:contain;mix-blend-mode:normal;position:relative;border-radius:2px;background:#fff;box-shadow:0 0 45px #afffcc15;z-index:2}.product-caption{padding:20px 0 0;border-color:#66bb8b40;color:#b2d9bf;font-size:12px;z-index:2}.product-caption span{color:#74a688}.vertical-label{right:-20px;top:60px;color:#70a389;z-index:2}.orbit{position:absolute;border:1px solid #64d08c30;pointer-events:none;border-radius:50%;width:650px;height:650px;left:50%;top:50%;z-index:-1;transform:translate(-50%,-50%) rotateX(62deg) rotate(-25deg)}.orbit-two{width:770px;height:770px;transform:translate(-50%,-50%) rotateX(55deg) rotate(30deg);border-style:dashed;animation:orbit-drift 35s linear infinite}
.nano-field{position:absolute;left:33%;top:10%;width:340px;height:480px;pointer-events:none;z-index:-1;opacity:.35;transform:rotate(-20deg)}.nano-field span{position:absolute;width:180px;height:180px;border:1px solid #81f5ad49;border-radius:50%;background:radial-gradient(circle at 35% 30%,#afffd822,#55e19503 65%);box-shadow:inset -15px -12px 30px #7fffb20a;animation:nano-float 10s ease-in-out infinite}.nano-field span:nth-child(2){left:120px;top:100px;width:125px;height:125px;animation-delay:-3s}.nano-field span:nth-child(3){left:25px;top:230px;width:90px;height:90px;animation-delay:-6s}
@keyframes nano-float{50%{translate:0 -18px}}@keyframes orbit-drift{50%{transform:translate(-50%,-50%) rotateX(55deg) rotate(55deg)}}
@media(max-width:1100px){.hero{gap:25px;min-height:700px}.hero-product{padding:20px;min-height:450px}.hero-product img{height:315px}.hero h1{font-size:56px}.hero-bottom>span{max-width:40%;text-align:right}}
@media(max-width:820px){.hero{padding:40px 5% 0;gap:22px;min-height:auto}.hero-copy{padding:0}.hero h1{font-size:clamp(38px,8vw,57px)}.hero .eyebrow{font-size:9px;letter-spacing:1px}.tech-status{font-size:8px;letter-spacing:.8px}.hero .intro{font-size:16px}.hero-product{margin-top:5px;padding:18px;min-height:420px;width:100%}.hero-product img{height:310px}.product-label{font-size:11px}.product-caption{font-size:11px;flex-direction:column;align-items:start;gap:4px}.hero-bottom{gap:16px;font-size:11px}.hero-bottom>span{font-size:8px}.nano-field{left:40%;top:10%;opacity:.2}.orbit{width:480px;height:480px}.orbit-two{width:570px;height:570px}}
@media(prefers-reduced-motion:reduce){.nano-field span,.orbit-two{animation:none}}

/* Thermal protection concept hero */
.concept-hero{display:block;min-height:780px;padding-top:88px;background:#041a13;position:relative}.concept-backdrop{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;z-index:-3}.concept-shade{position:absolute;inset:0;background:linear-gradient(90deg,#041610fa 0%,#041610d9 29%,#04161033 56%,transparent 80%),linear-gradient(0deg,#041610 0%,transparent 28%);z-index:-2}.concept-hero:before{display:none}.concept-hero .hero-copy{max-width:580px;padding:25px 0 65px}.concept-hero h1{font-size:clamp(56px,5.5vw,82px);line-height:1.25}.concept-hero .intro{font-size:18px}.concept-hero .hero-bottom{position:relative;margin-top:35px;padding:22px 0}.concept-note{position:absolute;right:6%;bottom:130px;color:#a7b8ad;font-size:11px;letter-spacing:1px;background:#02120c99;padding:5px 12px}.concept-hero .hero-bottom a{font-size:13px;color:#b9ddc8}.finished-product{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;background:linear-gradient(120deg,#fff,#edf5eb)}.finished-copy>p:not(.eyebrow){color:#607868;margin:28px 0;font-size:18px}.finished-copy .button{display:inline-block}.finished-tags{display:flex;gap:25px;font-size:13px;color:#65846e;margin-top:35px}.finished-photo{background:#fff;border:1px solid #deeadc;padding:20px}.finished-photo img{width:100%;height:420px;object-fit:contain}.finished-photo p{text-align:center;font-size:13px;color:#5e7b68;border-top:1px solid #e0ebdf;padding-top:15px;margin-bottom:0}
@media(max-width:1100px){.concept-hero{min-height:730px;padding-top:60px}.concept-hero h1{font-size:66px}.finished-product{gap:35px}.finished-photo img{height:360px}}
@media(max-width:820px){.concept-hero{min-height:850px;padding-top:38px}.concept-hero .hero-copy{padding:0;max-width:none}.concept-hero h1{font-size:clamp(47px,9vw,62px)}.concept-hero .intro{font-size:16px}.concept-backdrop{object-position:67% bottom;height:65%;top:auto;bottom:65px}.concept-shade{background:linear-gradient(180deg,#041610 0%,#041610f5 33%,#04161044 55%,transparent 72%,#041610 100%)}.concept-hero .hero-foot{margin-top:20px}.concept-hero .hero-bottom{margin-top:365px;font-size:11px}.concept-note{bottom:125px;right:5%;font-size:9px}.finished-product{grid-template-columns:1fr;gap:30px}.finished-copy>p:not(.eyebrow){font-size:16px}.finished-photo img{height:340px}}
@media(max-width:380px){.concept-hero .actions{gap:14px}.concept-hero .button{padding:12px;font-size:13px}.concept-hero .plain-link{font-size:13px}.concept-hero .hero-bottom{margin-top:320px}.finished-tags{gap:16px;font-size:12px}}