.site-header{position:relative;z-index:50;display:flex;align-items:center;gap:30px;width:100%;max-width:none;margin:0;min-height:72px;padding:0 max(28px,calc((100vw - 1180px)/2));border-bottom:1px solid #e1e5eb;background:rgba(255,255,255,.96);color:#18202b;font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif}
.site-header a{color:inherit;text-decoration:none}
.site-header__brand{display:flex;align-items:center;gap:10px;margin-right:auto}
.site-header__brand img{display:block;width:41px;height:41px;border-radius:11px}
.site-header__brand strong,.site-header__brand small{display:block}
.site-header__brand strong{font-size:17px;line-height:1.1}
.site-header__brand small{margin-top:4px;color:#657080;font-size:10px;line-height:1}
.site-header__nav{display:flex;align-items:center;gap:28px}
.site-header__nav a{color:#424c5a;font-size:13px;font-weight:800}
.site-header__nav a:hover{color:#3375f6}
.site-header__cta{display:grid;place-items:center;min-height:44px;padding:0 19px;border-radius:10px;background:#3375f6;color:#fff!important;font-size:14px;font-weight:800}
.site-header__cta:hover{background:#235bd1}
.site-header__menu{display:none}
@media(max-width:760px){
  .site-header{min-height:66px;padding:8px 16px}
  .site-header__brand img{width:40px;height:40px}
  .site-header__brand strong{font-size:16px}
  .site-header__nav,.site-header__cta{display:none}
  .site-header__menu{display:grid;place-content:center;gap:5px;width:41px;height:41px;border:1px solid #c8d8f8;border-radius:10px;background:#eef4ff}
  .site-header__menu span{display:block;width:19px;height:2px;background:#18202b}
  .site-header__nav.is-open{position:absolute;top:100%;left:0;right:0;display:grid;grid-template-columns:repeat(2,1fr);gap:0;padding:7px 12px 12px;border-bottom:1px solid #e1e5eb;background:#fff;box-shadow:0 12px 25px rgba(30,42,65,.08)}
  .site-header__nav.is-open a{padding:12px;border-bottom:1px solid #e1e5eb;text-align:center}
}