:root{
  --bg-0:#07111c;
  --bg-1:#0f2133;
  --bg-2:#153049;
  --panel:#11273c;
  --panel-2:#173550;
  --ink-0:#f3f7fb;
  --ink-1:#d0d9e2;
  --ink-2:#9fb0c1;
  --line-1:rgba(219,232,241,.10);
  --line-2:rgba(219,232,241,.18);
  --line-3:rgba(219,232,241,.28);
  --gold:#d7b36d;
  --gold-2:#ecd29c;
  --max-w:1240px;
  --pad-x:clamp(20px,4vw,56px);
  --shadow:0 22px 54px rgba(0,0,0,.28);
  --font-sans:"Segoe UI","Noto Sans TC","Noto Sans JP",Arial,sans-serif;
  --font-mono:"Consolas","SFMono-Regular",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  color:var(--ink-1);
  background:
    radial-gradient(1200px 700px at 0% -10%,rgba(255,255,255,.12),transparent 62%),
    radial-gradient(900px 560px at 100% 0%,rgba(93,143,182,.22),transparent 58%),
    linear-gradient(180deg,#203e58 0%,#12293e 40%,#07111c 100%);
  min-height:100vh;
}
a{text-decoration:none;color:inherit}
button{font:inherit;cursor:pointer}
img{display:block;max-width:100%;height:auto}
ul{margin:0;padding-left:18px}

.siteShell{
  width:min(100%,var(--max-w));
  margin:0 auto;
  padding:0 var(--pad-x) 72px;
}

.topbar{
  position:sticky;
  top:0;
  z-index:40;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:16px 0;
  background:linear-gradient(180deg,rgba(10,24,38,.92),rgba(10,24,38,.76) 78%,rgba(10,24,38,0));
  backdrop-filter:blur(12px) saturate(130%);
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
}

.brandMark{
  width:32px;
  height:32px;
  border-radius:8px;
  display:grid;
  place-items:center;
  background:linear-gradient(135deg,#f1f5f9,#9aa8b5);
  color:#09111a;
  font-weight:700;
}

#brandName{
  color:var(--ink-0);
  font-size:15px;
  font-weight:600;
  letter-spacing:.04em;
  text-transform:uppercase;
}

.topnav{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  justify-content:flex-end;
}

.topnav a{
  font-size:14px;
  color:var(--ink-2);
  padding:10px 14px;
  border:1px solid var(--line-1);
  border-radius:999px;
  background:rgba(255,255,255,.02);
}

.langGroup{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:6px;
  padding:5px;
  border:1px solid var(--line-2);
  border-radius:999px;
  background:rgba(255,255,255,.04);
  min-width:168px;
}

.langBtn{
  border:0;
  color:var(--ink-2);
  background:transparent;
  border-radius:999px;
  min-width:48px;
  min-height:42px;
  padding:9px 14px;
  font-size:15px;
  font-weight:600;
  text-align:center;
  transition:background .16s ease,color .16s ease,transform .16s ease;
}

.langBtn:hover{
  color:var(--ink-0);
}

.langBtn.active{
  color:#08121c;
  background:linear-gradient(135deg,#f1f5f9,#cbd6df);
  font-weight:700;
  box-shadow:0 1px 0 rgba(255,255,255,.18) inset;
}

.page{padding-top:36px}

.hero{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(300px,.85fr);
  gap:32px;
  padding:44px 0 36px;
  border-bottom:1px solid var(--line-1);
}

.hero h1{
  margin:14px 0 18px;
  font-size:clamp(38px,6vw,76px);
  line-height:.96;
  letter-spacing:-.05em;
  color:var(--ink-0);
  max-width:12ch;
}

.heroLead{
  margin:0;
  max-width:62ch;
  color:var(--ink-1);
  font-size:clamp(16px,1.6vw,19px);
  line-height:1.75;
}

.heroActions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin-top:30px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  padding:12px 18px;
  border-radius:8px;
  border:1px solid var(--line-3);
  font-size:14px;
  font-weight:700;
  letter-spacing:.08em;
  text-transform:uppercase;
  transition:transform .16s ease,border-color .16s ease,background .16s ease;
}

.btn:hover{transform:translateY(-1px)}
.btnPrimary{
  color:#11161b;
  border-color:var(--gold);
  background:linear-gradient(135deg,var(--gold-2),var(--gold));
}
.btnSecondary{
  color:var(--ink-0);
  background:rgba(255,255,255,.02);
}

.heroPanel,.qualityPanel,.contactPanel{
  border:1px solid var(--line-2);
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.02));
  box-shadow:var(--shadow);
}

.heroPanel{
  padding:22px;
  border-radius:18px;
}

.snapshotGrid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;
}

.snapshotCard{
  padding:18px;
  border-radius:14px;
  background:rgba(7,18,29,.34);
  border:1px solid var(--line-1);
}

.snapshotValue{
  display:block;
  color:var(--ink-0);
  font-size:24px;
  font-weight:700;
  letter-spacing:-.03em;
  margin-bottom:8px;
}

.snapshotLabel{
  display:block;
  color:var(--ink-1);
  font-size:14px;
  font-weight:600;
  margin-bottom:4px;
}

.snapshotNote{
  color:var(--ink-2);
  font-size:13px;
  line-height:1.55;
}

.section{
  padding:56px 0;
  border-bottom:1px solid var(--line-1);
}

.sectionHead{
  display:grid;
  gap:12px;
  margin-bottom:28px;
}

.sectionHead h2{
  margin:0;
  color:var(--ink-0);
  font-size:clamp(28px,4vw,52px);
  line-height:1.02;
  letter-spacing:-.04em;
}

.sectionHead p{
  margin:0;
  max-width:70ch;
  color:var(--ink-2);
  line-height:1.8;
  font-size:16px;
}

.cardGrid,.scopeGrid,.rangeGrid,.partsGrid,.checkGrid,.industryGrid,.faqGrid{
  display:grid;
  gap:16px;
}

.cardGrid{grid-template-columns:repeat(4,minmax(0,1fr))}
.scopeGrid{grid-template-columns:repeat(3,minmax(0,1fr));margin-bottom:18px}
.rangeGrid{grid-template-columns:repeat(2,minmax(0,1fr))}
.partsGrid{grid-template-columns:repeat(3,minmax(0,1fr))}
.checkGrid{grid-template-columns:repeat(3,minmax(0,1fr))}
.industryGrid{grid-template-columns:repeat(4,minmax(0,1fr))}
.faqGrid{grid-template-columns:repeat(2,minmax(0,1fr))}

.infoCard,.scopeCard,.rangeCard,.checkCard,.partCard,.industryCard,.faqCard{
  border:1px solid var(--line-2);
  border-radius:16px;
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.018));
  padding:20px;
}

.compactCard{
  min-height:0;
}

.cardIcon{
  width:44px;
  height:44px;
  display:grid;
  place-items:center;
  border-radius:12px;
  border:1px solid var(--line-2);
  background:rgba(255,255,255,.03);
  margin-bottom:14px;
}

.cardIcon svg{
  width:24px;
  height:24px;
  stroke:var(--gold-2);
  fill:none;
  stroke-width:2;
  stroke-linecap:round;
  stroke-linejoin:round;
}

.infoCard h3,.scopeCard h3,.rangeCard h3,.partCard h3,.qualityPanel h3,.contactPanel h3,.industryCard h3,.faqCard h3{
  margin:0 0 10px;
  color:var(--ink-0);
  font-size:20px;
  letter-spacing:-.03em;
}

.infoCard p,.scopeCard p,.rangeCard p,.partCard p,.checkCard p,.qualityPanel li,.contactPanel p,.industryCard p,.faqCard p{
  margin:0;
  color:var(--ink-2);
  line-height:1.7;
  font-size:15px;
}

.scopeList{
  margin-top:12px;
  display:grid;
  gap:8px;
}

.scopeList span{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:var(--ink-1);
  font-size:15px;
  line-height:1.6;
}

.scopeList span::before{
  content:"";
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--gold);
  margin-top:8px;
  flex:0 0 auto;
}

.timeline{
  display:grid;
  grid-template-columns:repeat(5,minmax(0,1fr));
  gap:14px;
}

.stepCard{
  padding:18px;
  border-radius:16px;
  border:1px solid var(--line-2);
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.018));
}

.stepIndex{
  display:inline-flex;
  min-width:34px;
  height:34px;
  align-items:center;
  justify-content:center;
  border-radius:999px;
  background:rgba(216,179,109,.16);
  color:var(--gold-2);
  font-family:var(--font-mono);
  margin-bottom:12px;
}

.stepCard h3{margin:0 0 10px;color:var(--ink-0);font-size:18px}
.stepCard p{margin:0;color:var(--ink-2);line-height:1.75;font-size:15px}

.qualityGrid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
}

.qualityPanel{
  border-radius:18px;
  padding:22px;
}

.qualityPanel ul{
  display:grid;
  gap:12px;
  margin-top:14px;
}

.partCard{
  overflow:hidden;
  padding:0;
}

.partCard img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-bottom:1px solid var(--line-2);
}

.partCopy{padding:18px 18px 20px}

.checkCard{
  min-height:0;
  position:relative;
  padding-top:18px;
}

.industryCard{
  min-height:200px;
}

.faqCard{
  min-height:0;
}

.checkIndex{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:56px;
  height:34px;
  margin:0 0 16px;
  padding:0 12px;
  color:var(--gold);
  font-family:var(--font-mono);
  font-size:22px;
  font-weight:700;
  letter-spacing:.04em;
  border:1px solid rgba(215,179,109,.22);
  border-radius:999px;
  background:rgba(215,179,109,.08);
}

.checkCard h3{
  margin-top:0;
}

.contactPanel{
  margin-top:18px;
  border-radius:18px;
  padding:22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}

.contactActions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}

.sectionEnd{
  border-bottom:0;
  padding-bottom:0;
}

@media (max-width:1100px){
  .cardGrid,.industryGrid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .scopeGrid,.partsGrid,.checkGrid,.timeline,.faqGrid{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:820px){
  .topbar,.topnav{align-items:flex-start}
  .topbar{flex-direction:column}
  .hero{grid-template-columns:1fr}
  .contactPanel{flex-direction:column;align-items:flex-start}
  .contactActions{width:100%}
}

@media (max-width:680px){
  .siteShell{padding:0 18px 56px}
  .page{padding-top:22px}
  .topnav{width:100%}
  .topnav a{display:none}
  .langGroup{width:100%;min-width:0}
  .hero h1,.sectionHead h2{max-width:none}
  .heroActions .btn{width:100%}
  .contactActions .btn{width:100%}
  .snapshotGrid,.cardGrid,.scopeGrid,.rangeGrid,.partsGrid,.checkGrid,.timeline,.qualityGrid,.industryGrid,.faqGrid{grid-template-columns:1fr}
  .checkCard{min-height:auto}
  .industryCard,.faqCard{min-height:auto}
}