:root{
  --navy: #041B33;
  --blue-deep: #0C447C;
  --blue: #185FA5;
  --blue-bright: #2E7FE0;
  --blue-tint: #EAF2FB;
  --blue-tint-2: #F4F8FD;
  --white: #FFFFFF;
  --ink: #0B2540;
  --ink-soft: #4A6485;
  --line: #DCE6F2;
}
*{box-sizing:border-box; margin:0; padding:0;}
body{
  font-family:'Inter', 'Noto Sans SC', sans-serif;
  color:var(--ink);
  background:var(--white);
  line-height:1.6;
}
h1,h2,h3{ font-family:'Space Grotesk', 'Noto Sans SC', sans-serif; font-weight:700; letter-spacing:-0.02em; }
.mono{ font-family:'JetBrains Mono', monospace; }
.wrap{ max-width:1080px; margin:0 auto; padding:0 24px; }

nav{ position:sticky; top:0; background:rgba(255,255,255,0.92); backdrop-filter:blur(8px); border-bottom:1px solid var(--line); z-index:50; }
nav .wrap{ display:flex; align-items:center; justify-content:space-between; height:72px; }
.logo{ display:flex; align-items:center; gap:10px; font-family:'Space Grotesk'; font-weight:700; font-size:20px; color:var(--navy); text-decoration:none; }
.logo-mark{ width:28px; height:28px; background:var(--blue-bright); border-radius:6px; position:relative; flex-shrink:0; }
.logo-mark::after{ content:''; position:absolute; inset:7px; border:2px solid white; border-radius:2px; }
.navlinks{ display:flex; gap:32px; font-size:15px; font-weight:500; }
.navlinks a{ color:var(--ink-soft); text-decoration:none; transition:color .15s; }
.navlinks a:hover{ color:var(--blue-deep); }
.nav-right{ display:flex; align-items:center; gap:16px; }
.langswitch{ display:flex; flex-wrap:nowrap; flex-shrink:0; border:1px solid var(--line); border-radius:8px; overflow:hidden; }
.langswitch button{ font-family:'Inter'; font-size:13px; font-weight:600; padding:7px 12px; border:none; background:white; color:var(--ink-soft); cursor:pointer; white-space:nowrap; flex-shrink:0; }
.langswitch button.active{ background:var(--navy); color:white; }
.navcta{ background:var(--navy); color:white; padding:10px 20px; border-radius:8px; font-size:14px; font-weight:600; text-decoration:none; white-space:nowrap; flex-shrink:0; }
.nav-toggle{ display:none; width:38px; height:38px; padding:0; border:1px solid var(--line); border-radius:8px; background:white; cursor:pointer; flex-shrink:0; align-items:center; justify-content:center; }
.nav-toggle-bars{ display:block; width:16px; height:2px; background:var(--navy); border-radius:1px; position:relative; }
.nav-toggle-bars::before, .nav-toggle-bars::after{ content:''; position:absolute; left:0; width:16px; height:2px; background:var(--navy); border-radius:1px; }
.nav-toggle-bars::before{ top:-5px; }
.nav-toggle-bars::after{ top:5px; }
.nav-contact-bar{ display:flex; align-items:center; gap:6px; flex-shrink:0; }
.nav-icon{ width:38px; height:38px; display:inline-flex; align-items:center; justify-content:center; border:1px solid var(--line); border-radius:8px; color:var(--ink-soft); text-decoration:none; }
.nav-icon:hover{ color:var(--blue-deep); }
.nav-icon svg{ width:16px; height:16px; display:block; }
.nav-contact-menu{ display:none; }

.eyebrow{ font-family:'JetBrains Mono'; font-size:13px; color:var(--blue-deep); background:var(--blue-tint); display:inline-flex; align-items:center; gap:8px; padding:6px 12px; border-radius:20px; margin-bottom:20px; }
.eyebrow-dot{ width:6px; height:6px; border-radius:50%; background:var(--blue-bright); flex-shrink:0; }
.btn-primary{ background:var(--navy); color:white; padding:14px 26px; border-radius:9px; text-decoration:none; font-weight:600; font-size:15px; display:inline-block; }
.btn-ghost{ color:var(--navy); padding:14px 10px; text-decoration:none; font-weight:600; font-size:15px; border-bottom:2px solid var(--navy); }

.case-page{
  padding:56px 0 88px;
  background:linear-gradient(180deg, var(--blue-tint-2) 0%, var(--white) 220px);
}
.case-page h1{ font-size:40px; line-height:1.15; color:var(--navy); margin-bottom:10px; max-width:720px; text-wrap:pretty; }
.case-page h2{ font-size:30px; color:var(--navy); margin-bottom:12px; text-wrap:pretty; }
.case-page h3{ font-size:17px; color:var(--navy); margin-bottom:8px; }
.case-title-row{
  display:flex;
  align-items:center;
  gap:16px;
  margin-bottom:10px;
  max-width:720px;
}
.case-title-row h1{ margin-bottom:0; }
.case-logo{
  flex-shrink:0;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:12px;
  padding:8px 10px;
}
.case-logo img{
  display:block;
  height:56px;
  width:auto;
  max-width:160px;
}
.case-kicker{ font-size:16px; color:var(--ink-soft); margin-bottom:18px; max-width:720px; }
.case-meta{ display:flex; flex-wrap:wrap; align-items:center; gap:10px 16px; margin-bottom:28px; }
.case-meta .mono{ font-size:13px; color:var(--blue-deep); text-decoration:none; }
.case-meta .mono:hover{ color:var(--blue-bright); }
.case-tags{ display:flex; gap:8px; flex-wrap:wrap; }
.case-tags span{ font-size:12px; background:var(--blue-tint); color:var(--blue-deep); padding:4px 10px; border-radius:20px; }
.case-section{ max-width:720px; margin-bottom:40px; }
.case-section-wide{ max-width:none; }
.case-section p, .case-copy p{ font-size:16px; color:var(--ink-soft); line-height:1.7; text-wrap:pretty; }
.case-section p + p, .case-copy p + p{ margin-top:14px; }
.case-section ul{
  margin:14px 0 16px;
  padding-left:20px;
  color:var(--ink-soft);
  font-size:16px;
  line-height:1.7;
}
.case-section li + li{ margin-top:8px; }
html[lang^="zh"] .case-section p,
html[lang^="zh"] .case-section li,
html[lang^="zh"] .case-copy p{ line-height:1.85; }
.case-result-actions{ display:flex; flex-wrap:wrap; align-items:center; gap:14px 18px; margin-top:16px; }
.soon-grid{ display:grid; grid-template-columns:repeat(2, minmax(0, 1fr)); gap:18px; max-width:720px; margin-bottom:48px; }
.coming-soon{
  min-height:140px;
  border:2px dashed #7AA8D6;
  border-radius:12px;
  background:#EEF4FB;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:6px;
  padding:24px 16px;
  text-align:center;
}
.coming-soon-kicker{
  font-size:13px;
  font-weight:600;
  color:var(--blue-deep);
}
.coming-soon-label{
  font-family:'JetBrains Mono', monospace;
  font-size:12px;
  color:var(--ink-soft);
}
.role-grid{ display:grid; grid-template-columns:repeat(2, minmax(0, 1fr)); gap:18px; margin:8px 0 8px; }
.role-card{
  background:white;
  border:1px solid var(--line);
  border-radius:14px;
  padding:22px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.role-icon{
  width:40px;
  height:40px;
  border-radius:9px;
  background:var(--blue-tint);
  color:var(--blue-deep);
  display:flex;
  align-items:center;
  justify-content:center;
}
.role-icon svg{ width:20px; height:20px; display:block; }
.role-card p{ font-size:14px; color:var(--ink-soft); line-height:1.65; }
html[lang^="zh"] .role-card p{ line-height:1.8; }
.role-card .coming-soon{ min-height:96px; margin-top:4px; }
.case-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:18px 22px;
}

footer{ padding:40px 0; border-top:1px solid var(--line); }
footer .wrap{ display:flex; justify-content:space-between; align-items:center; gap:16px; flex-wrap:wrap; font-size:13px; color:var(--ink-soft); }
.footer-left{ display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
.footer-dot{ opacity:0.45; }
footer a{ color:inherit; text-decoration:none; }
footer a:hover{ color:var(--blue-deep); }
.footer-contacts{ display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
.footer-wa{ display:inline-flex; align-items:center; gap:5px; }
.footer-wa svg{ width:13px; height:13px; display:block; }

@media(max-width:820px){
  .nav-toggle{ display:inline-flex; }
  nav .wrap{ position:static; gap:8px; padding-left:16px; padding-right:16px; }
  .logo{ flex-shrink:0; font-size:16px; gap:8px; }
  .logo-mark{ width:24px; height:24px; }
  .logo-mark::after{ inset:6px; }
  .nav-right{ gap:8px; flex-shrink:0; }
  .langswitch button{ padding:6px 8px; font-size:12px; }
  .navcta{ padding:8px 12px; font-size:13px; }
  .navlinks{
    display:none;
    position:absolute;
    top:100%;
    left:0;
    right:0;
    flex-direction:column;
    gap:0;
    background:rgba(255,255,255,0.98);
    border-bottom:1px solid var(--line);
    padding:8px 16px 12px;
    box-shadow:0 16px 28px -20px rgba(10,50,90,0.28);
  }
  nav.is-open .navlinks{ display:flex; }
  .navlinks a{ padding:14px 8px; border-bottom:1px solid var(--line); }
  .navlinks a:last-child{ border-bottom:none; }
  .nav-contact-bar{ display:none; }
  .nav-contact-menu{ display:contents; }
  .nav-contact-menu a{ display:flex; align-items:center; gap:10px; }
  .nav-contact-menu svg{ width:16px; height:16px; flex-shrink:0; }
  .case-page{ padding:40px 0 64px; }
  .case-page h1{ font-size:32px; }
  .case-page h2{ font-size:24px; }
  .case-title-row{ gap:12px; }
  .case-logo img{ height:48px; max-width:130px; }
  .role-grid, .soon-grid{ grid-template-columns:1fr; }
  .case-section p, .case-copy p{ line-height:1.75; }
  html[lang^="zh"] .case-section p,
  html[lang^="zh"] .case-copy p{ line-height:1.9; }
}
@media(max-width:430px){
  .logo{ font-size:0; gap:0; }
}