/* d token 顶栏样式：深蓝底、白字、品牌+导航居左、功能图标居右 */
header.fixed{
  background:linear-gradient(180deg,rgba(8,16,38,.94),rgba(10,20,48,.72)) !important;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(120,160,255,.18);
  pointer-events:auto !important;
}
header.fixed, header.fixed a, header.fixed span, header.fixed button, header.fixed svg{
  color:#fff !important;
}
header.fixed svg{stroke:currentColor}
header.fixed nav > div:first-child{flex:0 0 auto !important;margin-right:28px}
header.fixed nav > div:nth-child(2){flex:1 1 auto !important}
header.fixed nav > div:nth-child(2) > .w-px{margin-left:auto !important;background:rgba(255,255,255,.22) !important}
header.fixed nav a.text-muted-foreground{color:rgba(255,255,255,.88) !important}
header.fixed nav a:hover, header.fixed nav button:hover{color:#fff !important;background:rgba(255,255,255,.08) !important}
header.fixed a[href="/login"], header.fixed a[href="/sign-in"]{
  background:#22c1f1 !important;color:#fff !important;border-radius:999px !important;
  padding:6px 18px !important;font-weight:600 !important;
}
header.fixed a[href="/login"]:hover, header.fixed a[href="/sign-in"]:hover{background:#4cd2ff !important}

/* ---- v2：右侧按钮贴近登录；品牌艺术字 ---- */
header.fixed nav{gap:8px !important}
header.fixed nav > :nth-child(n+3){flex:0 0 auto !important;margin-left:0 !important}
/* 右侧：只有第一条分隔线推到最右；第二条分隔线隐藏；语言/亮度/通知/登录 相邻间距一致(容器 gap 2px + 10px = 12px) */
header.fixed nav > div:nth-child(2) > .w-px{margin:0 10px 0 auto !important}
header.fixed nav > div:nth-child(2) > .w-px ~ .w-px{display:none !important}
header.fixed nav > div:nth-child(2) > .w-px ~ *:not(.w-px){margin-left:0 !important;margin-right:0 !important}
header.fixed nav > div:nth-child(2) > .w-px ~ *:not(.w-px) ~ *:not(.w-px){margin-left:10px !important}

header.fixed nav > div:first-child a > div{width:38px !important;height:38px !important}
header.fixed nav > div:first-child a{gap:10px !important}
header.fixed nav > div:first-child a span{
  max-width:none !important;overflow:visible !important;
  font-family:"Nunito","Poppins","Segoe UI","PingFang SC","Microsoft YaHei",sans-serif !important;
  font-size:30px !important;font-weight:800 !important;letter-spacing:-1.2px !important;line-height:1 !important;
  color:#f2f7ff !important;
  text-shadow:0 0 18px rgba(76,210,255,.45),0 2px 0 rgba(8,16,38,.6);
}
header.fixed nav > div:first-child a span::first-letter{
  font-style:italic;color:#4cd2ff;text-shadow:0 0 22px rgba(76,210,255,.8);
}