:root{
  --ink:#0f172a;--muted:#64748b;--orange:#ea580c;
  --line:#e2e8f0;--soft:#f8fafc
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px;scrollbar-gutter:stable;background:#fff}
body{
  margin:0;
  font-family:Inter,"Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  color:var(--ink);background:#fff;
  animation:jg-page-in .38s ease-out both
}
body.page-leaving{
  animation:jg-page-out .24s ease-in both;pointer-events:none
}
@keyframes jg-page-in{from{opacity:0}to{opacity:1}}
@keyframes jg-page-out{from{opacity:1}to{opacity:0}}
@keyframes jg-hero-rise{
  from{opacity:0;transform:translateY(20px)}
  to{opacity:1;transform:translateY(0)}
}
@keyframes jg-drawing-line{
  from{stroke-dashoffset:1200}
  to{stroke-dashoffset:0}
}
@keyframes jg-drawing-label{
  from{opacity:0;transform:translateY(5px)}
  to{opacity:1;transform:translateY(0)}
}
@keyframes jg-node-pop{
  from{opacity:0;transform:scale(.5)}
  to{opacity:1;transform:scale(1)}
}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit}
button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible{
  outline:3px solid #fb923c;outline-offset:5px
}
button{cursor:pointer}
img{display:block;max-width:100%}
h1,h2,h3,p{margin-top:0}
h1{font-size:48px;line-height:1.25;font-weight:650;letter-spacing:-1px}
h2{font-size:32px;line-height:1.45;font-weight:650}
h3{font-size:22px;line-height:1.5}
p{font-size:14px;line-height:1.9}
.wrap{
  max-width:1240px;margin:auto;padding-left:32px;padding-right:32px
}
.topbar{
  background:#fff;border-bottom:1px solid var(--line);
  color:var(--muted);font-size:12px
}
.site-language-select{
  max-width:104px;padding:2px 5px;border:1px solid var(--line);
  border-radius:4px;background:transparent;color:inherit;
  font:inherit;cursor:pointer
}
.site-language-select:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.topbar .wrap{
  display:flex;justify-content:space-between;
  padding-top:9px;padding-bottom:9px;gap:16px
}
.site-header{
  position:sticky;top:0;z-index:20;background:#fff;
  border-bottom:1px solid var(--line)
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;padding-top:18px;padding-bottom:18px
}
.brand{display:block;flex-shrink:0}
.brand img{width:230px;height:67px;object-fit:contain}
.site-nav{display:flex;gap:24px;align-items:center}
.site-nav a{
  font-size:14px;padding:12px 0;border-bottom:2px solid transparent;
  color:#475569;white-space:nowrap
}
.site-nav a.active{
  border-color:var(--orange);color:#c2410c;font-weight:600
}
.site-nav a:hover{color:#c2410c}
.menu-toggle{
  display:none;background:transparent;border:1px solid var(--line);
  padding:9px 14px;color:var(--ink)
}
.section{padding-top:80px;padding-bottom:80px}
.grid{display:grid;gap:24px}
.two{grid-template-columns:repeat(2,minmax(0,1fr));gap:48px}
.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.four{grid-template-columns:repeat(4,minmax(0,1fr))}
.align-center{align-items:center}
.soft{background:var(--soft)}
.eyebrow{
  font-size:11px;letter-spacing:2px;font-weight:600;
  color:#c2410c;margin-bottom:16px
}
.section-heading{margin-bottom:36px}
.section-heading h2{margin-bottom:16px}
.section-heading .muted{max-width:660px}
.muted,.body-copy{color:var(--muted)}
.body-copy{line-height:2.1;margin-bottom:24px}
.accent,.number,.text-link{color:#c2410c}
.number{font:12px monospace;letter-spacing:1px}
.english{font-size:12px;color:#94a3b8}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:32px;background:var(--orange);color:white;padding:16px 24px;
  font-size:14px;font-weight:600;border:1px solid var(--orange);
  transition:.2s;line-height:1.5
}
.btn:hover{background:#c2410c;border-color:#c2410c}
.btn.secondary{
  background:transparent;color:var(--ink);border-color:#cbd5e1
}
.btn.secondary:hover{background:#f1f5f9}
.actions{display:flex;gap:12px;flex-wrap:wrap}
.hero{
  background:linear-gradient(110deg,#020617,#0f172a 55%,#1e293b);
  color:white;overflow:hidden
}
.hero-grid>div:first-child>*{
  animation:jg-hero-rise .7s cubic-bezier(.2,.7,.2,1) both
}
.hero-grid>div:first-child>*:nth-child(1){animation-delay:.08s}
.hero-grid>div:first-child>*:nth-child(2){animation-delay:.16s}
.hero-grid>div:first-child>*:nth-child(3){animation-delay:.24s}
.hero-grid>div:first-child>*:nth-child(4){animation-delay:.32s}
.hero-grid>div:first-child>*:nth-child(5){animation-delay:.4s}
.drawing.is-animated .drawing-ground,
.drawing.is-animated .drawing-structure path,
.drawing.is-animated .drawing-volume path{
  stroke-dasharray:1200;stroke-dashoffset:1200
}
.drawing.is-animated .drawing-surfaces,.drawing.is-animated .drawing-plates,
.drawing.is-animated .drawing-joint-plates,.drawing.is-animated .drawing-bolts,
.drawing.is-animated .drawing-nodes,.drawing.is-animated .drawing-callout,
.drawing.is-animated .drawing-labels,.drawing.is-animated .drawing-step{
  opacity:0
}
.drawing.is-animated .drawing-surfaces{
  animation:jg-drawing-label 1.1s cubic-bezier(.3,.1,.2,1) .1s forwards
}
.drawing.is-animated .drawing-ground{
  animation:jg-drawing-line 1.35s cubic-bezier(.35,0,.25,1) .1s forwards
}
.drawing.is-animated .drawing-columns-volume .beam-shadow{
  stroke:#26394a;stroke-width:11;
  animation:jg-drawing-line 2.25s cubic-bezier(.35,0,.25,1) .35s forwards
}
.drawing.is-animated .drawing-columns-volume .beam-metal{
  stroke:url(#steel-column);stroke-width:7;
  animation:jg-drawing-line 2.25s cubic-bezier(.35,0,.25,1) .58s forwards
}
.drawing.is-animated .drawing-columns-volume .beam-glint{
  stroke:#e2edf4;stroke-width:1.15;opacity:.64;
  animation:jg-drawing-line 2.25s cubic-bezier(.35,0,.25,1) .84s forwards
}
.drawing.is-animated .drawing-columns path{
  animation:jg-drawing-line 1.85s cubic-bezier(.35,0,.25,1) 1.05s forwards
}
.drawing.is-animated .drawing-rafters-volume .beam-shadow{
  stroke:#26394a;stroke-width:11;
  animation:jg-drawing-line 2.7s cubic-bezier(.35,0,.25,1) 2s forwards
}
.drawing.is-animated .drawing-rafters-volume .beam-metal{
  stroke:url(#steel-beam);stroke-width:7.2;
  animation:jg-drawing-line 2.7s cubic-bezier(.35,0,.25,1) 2.25s forwards
}
.drawing.is-animated .drawing-rafters-volume .beam-glint{
  stroke:#e7f1f7;stroke-width:1.15;opacity:.68;
  animation:jg-drawing-line 2.7s cubic-bezier(.35,0,.25,1) 2.52s forwards
}
.drawing.is-animated .drawing-frames path{
  animation:jg-drawing-line 2.55s cubic-bezier(.35,0,.25,1) 2.3s forwards
}
.drawing.is-animated .drawing-roof path{
  animation:jg-drawing-line 2.5s cubic-bezier(.35,0,.25,1) 4.45s forwards
}
.drawing.is-animated .drawing-roof path.house-roof-face{
  opacity:0;
  animation:jg-drawing-line 2.5s cubic-bezier(.35,0,.25,1) 4.45s forwards,
    jg-drawing-label .9s ease-out 4.45s forwards
}
.drawing.is-animated .drawing-walls path{
  animation:jg-drawing-line 2.3s cubic-bezier(.35,0,.25,1) 6.15s forwards
}
.drawing.is-animated .drawing-walls path.house-facade{
  opacity:0;
  animation:jg-drawing-line 2.3s cubic-bezier(.35,0,.25,1) 6.15s forwards,
    jg-drawing-label .9s ease-out 6.15s forwards
}
.drawing.is-animated .house-windows{
  opacity:0;
  animation:jg-drawing-label .9s ease-out 6.35s forwards
}
.drawing.is-animated .drawing-walls path.drawing-deck-face{
  opacity:0;
  animation:jg-drawing-line 2.3s cubic-bezier(.35,0,.25,1) 6.15s forwards,
    jg-drawing-label .9s ease-out 6.15s forwards
}
.drawing.is-animated .drawing-bracing path{
  animation:jg-drawing-line 1.9s cubic-bezier(.35,0,.25,1) 7.9s forwards
}
.drawing.is-animated .drawing-plates{
  animation:jg-node-pop .55s ease-out 8.9s forwards
}
.drawing.is-animated .drawing-joint-plates{
  animation:jg-node-pop .65s ease-out 9.05s forwards
}
.drawing.is-animated .drawing-bolts{
  animation:jg-node-pop .7s ease-out 9.25s forwards
}
.drawing.is-animated .drawing-nodes{
  transform-box:fill-box;transform-origin:center;
  animation:jg-node-pop .65s ease-out 9.4s forwards
}
.drawing.is-animated .drawing-callout{
  animation:jg-hero-rise .8s ease-out 9.55s forwards
}
.drawing.is-animated .drawing-labels{
  animation:jg-drawing-label .8s ease-out 9.7s forwards
}
.drawing.is-animated .drawing-step{
  animation:jg-drawing-label .8s ease-out 9.9s forwards
}
.hero-grid{
  display:grid;grid-template-columns:1fr 1fr;align-items:center;
  gap:16px;padding-top:76px;padding-bottom:64px
}
.hero h1{font-size:52px;line-height:1.4;margin:24px 0}
.hero h1 em{font-style:normal;color:#fb923c}
.hero .eyebrow{color:#cbd5e1}
.hero-description{color:#cbd5e1;line-height:2.2;margin-bottom:30px}
.hero .secondary{color:white;border-color:#475569}
.hero .secondary:hover{background:#1e293b}
.hero-principles{
  display:flex;gap:32px;margin-top:40px;border-top:1px solid #334155;
  padding-top:24px;color:#94a3b8;font-size:12px
}
.drawing{display:block;width:100%;height:auto;color:#7891a7}
.drawing-box{position:relative;min-width:0}
.illustration.company-building-illustration{
  border:1px solid #33485b;background:linear-gradient(140deg,#0b1424,#142236 62%,#1b2c40);
  padding:15px;overflow:hidden
}
.drawing-caption{
  font-size:11px;color:#94a3b8;border-left:2px solid #f97316;
  padding:8px 12px;margin:0 0 0 auto;width:max-content;max-width:100%
}
.principles{border-bottom:1px solid var(--line)}
.principles .grid{gap:0}
.principles .grid>div{
  display:flex;gap:20px;padding:30px 25px;
  border-right:1px solid var(--line)
}
.principles .grid>div:last-child{border:0}
.principles h3{font-size:18px;margin-bottom:7px}
.principles p{font-size:12px;color:var(--muted);margin:0}
.card{border:1px solid var(--line);padding:28px;background:white}
.card h3{margin-top:24px;margin-bottom:12px}
.card p{color:var(--muted)}
.service-card{background:var(--soft);transition:.2s}
.service-card:hover{border-color:#fb923c;background:#fff7ed}
.service-card .english{margin-top:42px;margin-bottom:8px}
.service-card h3{margin-top:0}
.text-link{font-size:12px;font-weight:600;display:block;margin-top:28px}
.illustration{border:1px solid #cbd5e1;background:#f8fafc;padding:15px}
.info-grid{display:grid;grid-template-columns:1fr 2fr;gap:40px}
.info-list{border-top:1px solid var(--line)}
.info-list a,.info-list>p{
  display:flex;gap:24px;align-items:center;padding:22px 0;
  border-bottom:1px solid var(--line);font-size:13px;margin:0
}
.info-list a span:last-child{margin-left:auto}
.info-list>p{color:var(--muted)}
.cta{background:var(--orange);color:white}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:32px;padding-top:44px;padding-bottom:44px
}
.cta .eyebrow,.cta p{color:#ffedd5}
.cta h2{font-size:28px;margin-bottom:10px}
.cta p:last-child{margin-bottom:0}
.cta .btn{
  background:white;color:var(--ink);border-color:white;flex-shrink:0
}
.page-hero{
  background:linear-gradient(120deg,#0f172a,#1e293b);
  color:white;padding:50px 0 70px
}
.breadcrumb{
  display:flex;gap:12px;font-size:12px;color:#94a3b8;margin-bottom:32px
}
.page-hero .eyebrow{color:#fb923c}
.page-hero h1{margin-bottom:20px}
.page-hero>.wrap>p:last-child{
  color:#cbd5e1;max-width:620px;margin-bottom:0
}
.principle-card{border-top:2px solid var(--orange)}
.profile{max-width:920px;border-top:1px solid var(--line)}
.profile>div{
  display:grid;grid-template-columns:220px 1fr;gap:16px;padding:22px 0;
  border-bottom:1px solid var(--line);font-size:14px;line-height:1.8
}
.profile dt{font-weight:600}
.profile dd{margin:0;color:var(--muted)}
.service-row{
  display:grid;grid-template-columns:1fr 2fr;gap:60px;
  padding:48px 0;border-bottom:1px solid var(--line)
}
.service-row:first-child{padding-top:0}
.service-row h2{margin-top:20px}
.check-list{padding:0;list-style:none;margin:24px 0}
.check-list li{
  background:var(--soft);padding:16px 20px;
  margin-bottom:10px;font-size:14px
}
.check-list li span{color:var(--orange);margin-right:16px}
.fine-print{
  font-size:12px!important;color:#94a3b8!important;
  line-height:1.9;margin-top:24px
}
.project-card{border:1px solid var(--line);overflow:hidden}
.project-card .card{border:0}
.project-visual{position:relative;background:#f1f5f9;overflow:hidden}
.project-visual .drawing{height:210px;object-fit:cover;opacity:.7}
.badge{
  position:absolute;top:16px;left:16px;background:white;
  padding:6px 10px;font-size:11px;color:var(--muted)
}
.notice{
  padding:20px;border-left:2px solid var(--orange);background:#fff7ed;
  color:#7c2d12;font-size:13px;line-height:1.9;margin-top:30px
}
.values{list-style:none;padding:0;margin:30px 0 0}
.values li{display:flex;gap:16px;margin-bottom:24px;font-size:14px}
.values p{margin:6px 0 0;color:var(--muted)}
.access-grid{display:grid;grid-template-columns:3fr 2fr;gap:32px}
.map-placeholder{
  display:flex;align-items:center;justify-content:center;
  min-height:420px;padding:24px;border:1px solid var(--line);
  background-color:#f1f5f9;
  background-image:
    linear-gradient(30deg,transparent 43%,white 43%,white 47%,transparent 47%),
    linear-gradient(90deg,transparent 23%,#e2e8f0 23%,#e2e8f0 24%,transparent 24%),
    linear-gradient(0deg,transparent 62%,white 62%,white 66%,transparent 66%)
}
.map-card{
  max-width:340px;text-align:center;background:white;
  border:1px solid var(--line);padding:30px
}
.map-symbol{font-size:46px;color:var(--orange)}
.map-card h2{font-size:22px;margin-top:16px}
.map-card p{color:var(--muted)}
.contact-list{margin:30px 0}
.contact-list dt{font-size:14px;font-weight:600;margin:24px 0 9px}
.contact-list dd{font-size:14px;color:var(--muted);margin:0;line-height:1.9}
.contact-grid{display:grid;grid-template-columns:1fr 2fr;gap:48px}
.form-card{background:var(--soft);border:1px solid var(--line);padding:36px}
.form-title{
  display:flex;justify-content:space-between;gap:12px;
  align-items:center;margin-bottom:24px
}
.form-title h2{font-size:22px;margin:0}
.form-title span{font-size:12px;color:#94a3b8}
.form-grid{gap:24px}
form label{display:block;font-size:14px;font-weight:500;margin-bottom:24px}
form input:not([type=checkbox]),form textarea,form select{
  display:block;width:100%;margin-top:10px;padding:13px 15px;
  border:1px solid var(--line);background:white;color:var(--ink);
  font-size:14px;outline:none;border-radius:0
}
form input:focus,form textarea:focus,form select:focus{
  border-color:var(--orange);box-shadow:0 0 0 2px #ffedd5
}
form textarea{resize:vertical}
.consent{
  display:flex;align-items:flex-start;gap:12px;font-size:12px;
  color:var(--muted);line-height:1.9
}
.consent input{margin-top:5px;accent-color:var(--orange)}
[hidden]{display:none!important}

/* 黑色页脚 */
.site-footer{background:#000;color:#cbd5e1}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;
  padding-top:56px;padding-bottom:56px
}
.footer-brand-lockup{display:flex;align-items:center;gap:14px;min-height:64px;margin-bottom:20px}
.footer-brand-lockup .footer-brand{display:block;flex:0 0 64px;width:64px}
.footer-brand-lockup .footer-brand img{
  display:block;width:64px;height:64px;object-fit:contain;
  object-position:left center;margin:0
}
.footer-company-name{max-width:280px;margin:0;color:inherit;font-size:14px;line-height:1.65;font-weight:600}
.footer-brand-copy{padding-left:7.4px}
.footer-brand-copy p{margin:0}
.site-footer h3{font-size:14px;color:#fff;margin-bottom:24px}
.site-footer p{font-size:13px}
.footer-links{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;font-size:12px
}
.footer-links a{transition:color .2s}
.footer-links a:hover{color:#fff}
.footer-contact{
  display:inline-block;color:#fff;border-bottom:1px solid #525252;
  padding-bottom:8px;font-size:14px
}
.footer-contact:hover{border-color:#fff}
.copyright{border-top:1px solid #262626}
.copyright .wrap{
  display:flex;justify-content:space-between;gap:20px;
  padding-top:20px;padding-bottom:20px;
  font-size:11px;line-height:1.9;color:#94a3b8
}

@media(min-width:1001px){
  .site-nav{display:flex!important}
}
@media(max-width:1100px){
  .site-nav{gap:16px}
  .brand img{width:200px;height:58px}
  .hero h1{font-size:44px}
}
@media(max-width:1000px){
  .menu-toggle{display:block}
  .header-inner{flex-wrap:wrap;padding-top:12px;padding-bottom:12px}
  .site-nav{
    display:none;flex-basis:100%;flex-direction:column;
    align-items:stretch;gap:0;padding-top:8px
  }
  .site-nav.open{display:flex}
  .site-nav a{padding:14px 0}
  .hero-grid{grid-template-columns:1fr 1fr}
  .hero h1{font-size:36px}
  .two{gap:30px}
  .four{grid-template-columns:repeat(2,minmax(0,1fr))}
  .contact-grid{grid-template-columns:1fr;gap:32px}
}
@media(max-width:700px){
  .wrap{padding-left:22px;padding-right:22px}
  .topbar{display:none}
  .brand img{width:190px;height:55px}
  h1,.page-hero h1{font-size:36px}
  h2{font-size:27px}
  .section{padding-top:52px;padding-bottom:52px}
  .hero-grid,.two,.three,.four,.info-grid,
  .service-row,.access-grid,.footer-grid{grid-template-columns:1fr}
  .hero-grid{padding-top:48px;padding-bottom:40px;gap:30px}
  .hero h1{font-size:38px}
  .hero-principles{gap:26px}
  .drawing-box{max-width:500px;width:100%;margin:auto}
  .principles .grid>div{
    border-right:0;border-bottom:1px solid var(--line);padding:22px 0
  }
  .cta-inner{align-items:flex-start;flex-direction:column}
  .cta h2{font-size:25px}
  .page-hero{padding:32px 0 48px}
  .profile>div{grid-template-columns:1fr;gap:6px}
  .service-row{gap:20px;padding:36px 0}
  .form-card{padding:24px}
  .form-grid{gap:0}
  .form-title{align-items:flex-start}
  .footer-grid{gap:30px;padding-top:40px;padding-bottom:40px}
  .footer-brand img{width:250px;height:73px}
  .footer-brand-lockup .footer-brand{flex-basis:60px;width:60px}
  .footer-brand-lockup .footer-brand img{width:60px;height:60px}
  .footer-brand-copy{padding-left:6.9px}
  .copyright .wrap{flex-direction:column;gap:6px}
  .map-placeholder{min-height:350px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  body,body.page-leaving{animation:none}
  .hero-grid>div:first-child>*,.drawing.is-animated .drawing-ground,
  .drawing.is-animated .drawing-structure path,
  .drawing.is-animated .drawing-roof path.house-roof-face,
  .drawing.is-animated .drawing-walls path.house-facade,
  .drawing.is-animated .house-windows,
  .drawing.is-animated .drawing-walls path.drawing-deck-face,
  .drawing.is-animated .drawing-volume path,
  .drawing.is-animated .drawing-surfaces,.drawing.is-animated .drawing-plates,
  .drawing.is-animated .drawing-joint-plates,.drawing.is-animated .drawing-bolts,
  .drawing.is-animated .drawing-nodes,.drawing.is-animated .drawing-callout,
  .drawing.is-animated .drawing-labels,.drawing.is-animated .drawing-step{
    animation:none;opacity:1;transform:none;stroke-dasharray:none;
    stroke-dashoffset:0
  }
}