:root{
  --navy:#07345f;
  --blue:#0d70b7;
  --teal:#149b9a;
  --green:#2ca568;
  --ink:#18354d;
  --muted:#62798b;
  --line:#dce7ed;
  --soft:#f4f8fa;
  --white:#fff;
  --shadow:0 14px 38px rgba(7,52,95,.08);
  --radius:18px;
  --max:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.65}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit}
.container{width:min(var(--max),calc(100% - 40px));margin:0 auto}
.skip-link{position:absolute;left:-999px;top:0;background:#fff;padding:10px;z-index:999}.skip-link:focus{left:10px}

.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.97);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.navbar{min-height:108px;display:flex;align-items:center;gap:22px}
.brand{display:flex;align-items:center;gap:14px;color:var(--ink);min-width:365px;margin-right:auto}
.brand img{width:76px;height:76px;object-fit:contain;flex:0 0 76px}
.brand-text{display:flex;flex-direction:column;line-height:1.1;min-width:0}
.brand-text strong{font-size:2rem;letter-spacing:.045em;color:#153654;font-weight:850}
.brand-text span{margin-top:9px;font-size:1.08rem;letter-spacing:.025em;color:#60778c;font-weight:700;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:9px 10px;border-radius:10px;color:var(--ink);font-weight:650;font-size:.9rem;white-space:nowrap}
.nav-links a:hover,.nav-links a.active{background:#eaf4f7;color:var(--navy)}
.lang-toggle{border:1px solid var(--line);background:#fff;color:var(--navy);font-weight:750;border-radius:999px;padding:8px 13px;cursor:pointer;white-space:nowrap}
.mobile-menu{display:none;border:0;background:transparent;font-size:1.5rem;color:var(--navy);cursor:pointer}

.kicker{margin:0 0 14px;color:var(--teal);font-size:.78rem;font-weight:850;letter-spacing:.14em;text-transform:uppercase}
h1,h2,h3{color:var(--navy)}
h1{font-size:clamp(2.35rem,5vw,4.4rem);line-height:1.08;letter-spacing:-.035em;margin:0 0 20px}
h2{font-size:clamp(1.75rem,3vw,2.5rem);line-height:1.2;letter-spacing:-.02em;margin:0}
.lead{font-size:1.08rem;color:#4f687a;max-width:800px;margin:0}

.summary-hero{padding:76px 0;background:linear-gradient(135deg,#f8fbfd 0%,#edf7f6 60%,#f8fbfd 100%)}
.summary-hero-grid{display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:56px}
.summary-logo{background:#fff;border:1px solid var(--line);border-radius:26px;padding:24px;box-shadow:var(--shadow)}
.summary-logo img{width:100%;max-height:420px;object-fit:contain}

section{padding:72px 0}
.section-soft{background:var(--soft)}
.section-title{margin-bottom:28px}
.table-card{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;min-width:850px}
th,td{padding:17px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
th{background:#eaf3f6;color:#143e61;font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;white-space:nowrap}
td{font-size:.94rem}tbody tr:last-child td{border-bottom:0}tbody tr:hover{background:#fbfdfd}

/* Homepage alignment */
.home-page .summary-copy{
  text-align:center;
}
.home-page .summary-copy .lead{
  margin-left:auto;
  margin-right:auto;
}
.home-page .summary-copy .kicker,
.home-page .section-title .kicker{
  text-align:center;
}
.home-page .section-title{
  text-align:center;
}
.home-page .table-card th,
.home-page .table-card td{
  text-align:center;
}
.home-page .table-card th{
  text-transform:none;
}
.product-link{font-weight:800;color:var(--navy)}
.tag{display:inline-flex;margin-top:5px;border-radius:999px;padding:4px 8px;font-size:.72rem;font-weight:800}
.tag-sim{background:#eaf2fb;color:#145f9a}.tag-fusion{background:#eaf7f3;color:#0f7568}

.product-hero{padding:68px 0 58px;background:linear-gradient(135deg,#f8fbfd,#eef7f7)}
.product-hero-copy{max-width:960px}
.product-hero h1{font-size:clamp(2.2rem,4.5vw,4rem)}
.product-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(290px,.65fr);gap:28px;align-items:start}
.content-card,.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.content-card{padding:34px}
.side-card{padding:0;position:sticky;top:132px;overflow:hidden}
.content-card h2{font-size:2rem;margin:0 0 18px}.content-card h3{font-size:1.2rem;margin:32px 0 12px;color:#0a4778}
.content-card p,.content-card ul{color:#50697b}.content-card ul{padding-left:21px}.content-card li{margin:8px 0}
.side-card h2{
  position:relative;
  margin:0;
  padding:20px 22px 18px 38px;
  color:#fff;
  font-size:1.22rem;
  line-height:1.35;
  letter-spacing:-.01em;
  background:linear-gradient(135deg,var(--navy),#0b628f 62%,var(--teal));
}
.side-card h2::before{
  content:"";
  position:absolute;
  left:22px;
  top:50%;
  width:5px;
  height:24px;
  border-radius:999px;
  background:rgba(255,255,255,.9);
  transform:translateY(-50%);
}
.spec-list{
  display:grid;
  gap:8px;
  margin:0;
  padding:14px;
  background:linear-gradient(180deg,#f8fbfc 0%,#fff 100%);
}
.spec{
  display:grid;
  grid-template-columns:minmax(100px,.82fr) minmax(0,1.18fr);
  align-items:center;
  gap:14px;
  padding:13px 14px;
  border:1px solid #e5edf1;
  border-radius:12px;
  background:#fff;
  box-shadow:0 3px 10px rgba(7,52,95,.035);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.spec:hover{
  border-color:#c9dde6;
  box-shadow:0 7px 18px rgba(7,52,95,.07);
  transform:translateY(-1px);
}
.spec dt{
  color:var(--muted);
  font-size:.8rem;
  font-weight:700;
  line-height:1.35;
}
.spec dd{
  margin:0;
  color:#183d5d;
  font-size:.89rem;
  font-weight:800;
  line-height:1.4;
  text-align:left;
  overflow-wrap:anywhere;
  font-variant-numeric:tabular-nums;
}
.dataset-figure{margin:16px 0 8px}.dataset-image-frame{overflow:hidden;border:1px solid var(--line);border-radius:16px;background:#f3f8fa}.dataset-image-link{display:block;cursor:zoom-in;position:relative}.dataset-image-link:focus-visible{outline:3px solid rgba(13,112,183,.45);outline-offset:-3px}.dataset-image-frame img{display:block;width:100%;height:auto;max-height:none;object-fit:contain;transition:transform .2s ease}.dataset-image-link:hover img{transform:scale(1.01)}.dataset-figure figcaption{margin-top:10px;color:var(--muted);font-size:.86rem}
.image-lightbox{position:fixed;inset:0;z-index:10000;display:none;background:rgba(2,18,32,.94);padding:54px 24px 24px;align-items:center;justify-content:center}.image-lightbox.open{display:flex}.image-lightbox-stage{width:100%;height:100%;display:flex;align-items:center;justify-content:center;overflow:auto}.image-lightbox img{display:block;max-width:96vw;max-height:88vh;width:auto;height:auto;object-fit:contain;box-shadow:0 18px 70px rgba(0,0,0,.42);background:#fff}.image-lightbox-close{position:fixed;right:22px;top:16px;width:42px;height:42px;border:1px solid rgba(255,255,255,.45);border-radius:50%;background:rgba(6,35,60,.72);color:#fff;font-size:28px;line-height:1;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:2}.image-lightbox-close:hover,.image-lightbox-close:focus-visible{background:#fff;color:var(--navy);outline:none}.image-lightbox-hint{position:fixed;left:50%;bottom:14px;transform:translateX(-50%);color:#e8f2f7;background:rgba(6,35,60,.72);border-radius:999px;padding:6px 12px;font-size:.78rem;white-space:nowrap}.lightbox-open{overflow:hidden}
.reference{border-left:4px solid var(--teal);background:#f3faf8;border-radius:0 14px 14px 0;padding:20px;margin-top:16px}.reference p{margin:0;color:#3e5d69;font-size:.94rem}.reference-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:11px;padding:10px 15px;font-weight:800;border:1px solid transparent}.btn-primary{color:#fff;background:linear-gradient(135deg,var(--navy),var(--teal))}.btn-secondary{background:#fff;border-color:var(--line);color:var(--navy)}

.footer{background:#082e52;color:#d9e8f3;padding:24px 0}
.footer-row{display:grid;grid-template-columns:1fr 1fr auto;column-gap:48px;row-gap:12px;align-items:center;font-size:.84rem}
.footer-contact{justify-self:start;white-space:nowrap}.footer a{color:#c9deec}.footer a:hover{color:#fff}
.icp-link{justify-self:end;white-space:nowrap;border-bottom:1px dashed rgba(201,222,236,.55);padding-bottom:1px;cursor:pointer}
.icp-link:hover{border-bottom-color:#fff}
.copy-toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,18px);z-index:9999;background:rgba(9,46,82,.96);color:#fff;padding:10px 16px;border-radius:999px;font-size:.86rem;opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease;box-shadow:0 10px 30px rgba(0,0,0,.18)}
.copy-toast.show{opacity:1;transform:translate(-50%,0)}

[data-lang]{display:none}.lang-zh [data-lang="zh"],.lang-en [data-lang="en"]{display:initial}
.lang-zh p[data-lang="zh"],.lang-en p[data-lang="en"],.lang-zh h1[data-lang="zh"],.lang-en h1[data-lang="en"],.lang-zh h2[data-lang="zh"],.lang-en h2[data-lang="en"],.lang-zh h3[data-lang="zh"],.lang-en h3[data-lang="en"],.lang-zh ul[data-lang="zh"],.lang-en ul[data-lang="en"]{display:block}
.lang-zh span[data-lang="zh"],.lang-en span[data-lang="en"],.lang-zh dd[data-lang="zh"],.lang-en dd[data-lang="en"],.lang-zh dt[data-lang="zh"],.lang-en dt[data-lang="en"]{display:inline}

@media(max-width:1120px){
  .navbar{gap:14px}
  .brand{min-width:315px}
  .brand img{width:66px;height:66px;flex-basis:66px}
  .brand-text strong{font-size:1.72rem}
  .brand-text span{font-size:.94rem}
  .nav-links a{font-size:.84rem;padding:8px}
}
@media(max-width:940px){
  .summary-hero-grid,.product-layout{grid-template-columns:1fr}
  .summary-logo{max-width:620px}
  .side-card{position:static}
  .navbar{min-height:88px}
  .brand{min-width:0}
  .brand img{width:60px;height:60px;flex-basis:60px}
  .brand-text strong{font-size:1.55rem}
  .brand-text span{font-size:.84rem}
  .nav-links{display:none;position:absolute;top:88px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:14px 20px;flex-direction:column;align-items:stretch}
  .nav-links.open{display:flex}.mobile-menu{display:block}.lang-toggle{margin-left:auto}
  .footer-row{grid-template-columns:1fr 1fr}.footer-contact{justify-self:end}.footer-row .icp-link{grid-column:1/-1;justify-self:end;margin-top:8px}
}
@media(max-width:640px){
  .container{width:min(100% - 24px,var(--max))}
  .navbar{min-height:76px;gap:10px}
  .brand{gap:9px}
  .brand img{width:48px;height:48px;flex-basis:48px}
  .brand-text strong{font-size:1.23rem}
  .brand-text span{display:none}
  .nav-links{top:76px}
  .summary-hero,.product-hero{padding:52px 0 46px}
  .summary-hero-grid{gap:30px}.summary-logo{padding:14px}
  section{padding:54px 0}.content-card{padding:22px}
  .footer-row{display:flex;flex-direction:column;align-items:flex-start;gap:8px}.footer-contact{align-self:flex-start;white-space:normal}.footer-row .icp-link{align-self:flex-end;margin-top:12px}
}

@media(max-width:420px){
  .side-card h2{padding:18px 20px 16px 36px}
  .side-card h2::before{left:20px}
  .spec-list{padding:12px;gap:7px}
  .spec{grid-template-columns:1fr;gap:5px;padding:12px 13px}
  .spec dd{text-align:left}
}