:root{
  --site-header-h:53px;
  --service-notice-h:0px;
  --line:#E6E9F2;
  --ink:#0B1220;
  --ink-soft:#4B5768;
  --ink-faint:#8A93A3;
  --blue:#3182F6;
  --blue-dark:#1B64DA;
  --blue-pale:#EAF2FF;
  --bg-soft:#F5F7FB;
}
@media(max-width:768px){
  :root{--site-header-h:49px;}
}

.site-header{
  position:fixed; top:0; left:0; right:0; z-index:1000;
  background:rgba(255,255,255,.92); backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.site-header-inner{
  max-width:1200px; margin:0 auto; padding:14px 20px;
  display:flex; align-items:center; justify-content:space-between; gap:10px; min-width:0;
}
.site-logo{
  font-size:17px; font-weight:900; letter-spacing:-.02em;
  display:flex; align-items:center; gap:6px; flex-shrink:0; min-width:0;
  color:inherit; text-decoration:none;
}
.site-logo::before{content:''; width:7px; height:7px; border-radius:50%; background:var(--blue);}
.site-logo::after{
  content:'BETA';
  font-size:7pt;
  font-weight:800;
  letter-spacing:.05em;
  color:var(--ink-faint);
  margin-left:4px;
  line-height:1;
  transform:translateY(-3px);
}
.site-logo span{color:var(--blue);}

.site-nav{
  display:flex; align-items:center; gap:4px; flex:1; justify-content:center; min-width:0;
}
.site-nav-link{
  display:flex; align-items:center;
  padding:8px 12px; border-radius:9px;
  font-size:13.5px; font-weight:700; color:var(--ink-soft); text-decoration:none; white-space:nowrap;
}
.site-nav-link:hover,.site-nav-link.is-active{color:var(--blue); background:var(--bg-soft)}
.site-nav-link.is-active{font-weight:800}
.site-nav-group{position:relative}
.site-nav-trigger{
  display:flex; align-items:center; gap:5px;
  padding:8px 12px; border-radius:9px; border:none; background:transparent;
  font-size:13.5px; font-weight:700; color:var(--ink-soft); cursor:pointer; white-space:nowrap;
  font-family:inherit;
}
.site-nav-trigger:hover,.site-nav-group.is-active-group .site-nav-trigger{color:var(--blue); background:var(--bg-soft)}
.site-nav-caret{
  width:0; height:0; border-left:4px solid transparent; border-right:4px solid transparent;
  border-top:5px solid currentColor; opacity:.7;
}
.site-submenu{
  display:none; position:absolute; top:calc(100% + 8px); left:50%; transform:translateX(-50%);
  min-width:168px; background:#fff; border:1px solid var(--line); border-radius:12px;
  padding:6px; box-shadow:0 12px 28px -12px rgba(11,18,32,.16); z-index:1100;
}
.site-nav-group.open .site-submenu{display:block}
.site-submenu a{
  display:block; padding:9px 12px; border-radius:8px;
  font-size:13px; font-weight:600; color:var(--ink-soft); text-decoration:none;
}
.site-submenu a:hover{background:var(--bg-soft); color:var(--blue)}
.site-submenu a.is-active{background:var(--blue-pale); color:var(--blue); font-weight:800}

.site-header-cta{display:flex; gap:8px; align-items:center; flex-shrink:0;}
.site-btn-ghost{
  padding:10px 14px; border-radius:10px; background:#fff; border:1px solid var(--line);
  font-size:13px; font-weight:700; color:var(--ink-soft); white-space:nowrap; text-decoration:none;
}
.site-btn-ghost:hover{border-color:var(--ink-faint);}
.site-btn-ghost.is-current{color:var(--blue); border-color:rgba(49,130,246,.35); background:var(--blue-pale);}
.site-btn-primary{
  padding:10px 16px; border-radius:10px; background:var(--blue); color:#fff;
  font-size:13px; font-weight:700; box-shadow:0 10px 20px -10px rgba(49,130,246,.55);
  white-space:nowrap; text-decoration:none;
}
.site-btn-primary:hover{background:var(--blue-dark);}

.site-menu-toggle{
  display:none; width:38px; height:38px; border-radius:10px;
  border:1.5px solid var(--line); background:#fff; font-size:18px; line-height:1; cursor:pointer;
}
.site-menu-toggle.on{background:var(--blue-pale); border-color:var(--blue); color:var(--blue)}

.site-mobile-panel{
  position:fixed; top:var(--site-header-h); left:0; right:0; bottom:0; z-index:999;
  background:rgba(11,18,32,.35); backdrop-filter:blur(2px);
}
.site-mobile-inner{
  background:#fff; border-bottom:1px solid var(--line); padding:16px 20px 20px;
  max-height:calc(100vh - var(--site-header-h)); overflow-y:auto;
}
.site-mobile-top{
  display:block; padding:12px 4px; font-size:15px; font-weight:800;
  color:var(--ink-soft); text-decoration:none; border-bottom:1px solid var(--bg-soft);
}
.site-mobile-top.is-active{color:var(--blue)}
.site-mobile-group{margin-bottom:14px}
.site-mobile-label{font-size:11px; font-weight:800; color:var(--blue); letter-spacing:.04em; margin-bottom:6px}
.site-mobile-group a{
  display:block; padding:10px 4px; font-size:14px; font-weight:600; color:var(--ink-soft); text-decoration:none;
  border-bottom:1px solid var(--bg-soft);
}
.site-mobile-group a.is-active{color:var(--blue); font-weight:800}
.site-mobile-cta{display:flex; gap:8px; margin-top:16px}

body.has-site-header:not(.has-editor-header){padding-top:calc(var(--site-header-h) + var(--service-notice-h));}
body.has-service-notice{--service-notice-h:48px;}

.service-notice{
  position:fixed; top:var(--site-header-h); left:0; right:0; z-index:999;
  background:#FFF8E6; border-bottom:1px solid #FFE4A8;
  padding:8px 20px; font-size:calc(12.5px - 2pt); line-height:1.45; color:#6B4E00; text-align:center;
}
.service-notice strong{color:#8A6200; font-weight:800}

@media(max-width:768px){
  body.has-service-notice{--service-notice-h:62px;}
  .service-notice{font-size:calc(11.5px - 2pt); padding:7px 14px; line-height:1.4;}
}

@media(max-width:960px){
  .site-nav{display:none}
  .site-menu-toggle{display:flex; align-items:center; justify-content:center}
}
@media(max-width:768px){
  .site-header-inner{padding:12px 16px;}
  .site-logo{font-size:16px;}
  .site-header-cta .site-btn-ghost{display:none}
  .site-btn-ghost,.site-btn-primary{padding:9px 12px; font-size:12px;}
}