/* Shared global navigation: AAHUB, download center, public observatory. */
.aa-site-header{position:relative;z-index:40;margin:0;padding:0;border:0;background:#f5f5f7;color:#1d1d1f;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
.aa-site-header *,.aa-site-header *::before,.aa-site-header *::after{box-sizing:border-box}
.aa-site-header .aa-site-nav{width:min(1160px,calc(100% - 96px));height:64px;margin:0 auto;padding:0;display:flex;align-items:center;justify-content:space-between;gap:26px}
.aa-site-header a{text-decoration:none;color:inherit}
.aa-site-header .aa-site-brand{position:relative;display:inline-block;flex-shrink:0;margin:0;padding:0 10px 0 0;font-size:25px;font-weight:750;line-height:1.25;letter-spacing:-1.1px;white-space:nowrap}
.aa-site-header .aa-site-brand sup{position:absolute;top:5px;right:0;font-size:9px;line-height:1;letter-spacing:0;font-weight:600;vertical-align:super}
.aa-site-header .aa-site-links{display:flex;align-items:center;gap:32px;margin:0;padding:0;font-size:14px;font-weight:400;line-height:1.65;letter-spacing:normal;color:#5d5d65}
.aa-site-header .aa-site-links a{white-space:nowrap}
.aa-site-header .aa-site-links a:hover{color:#1d1d1f}
.aa-site-header a:focus-visible{outline:2px solid #0071e3;outline-offset:5px;border-radius:2px}
@media(max-width:700px){
  .aa-site-header .aa-site-nav{width:calc(100% - 40px);height:auto;min-height:72px;flex-wrap:wrap;padding:14px 0;gap:12px}
  .aa-site-header .aa-site-brand{font-size:22px}
  .aa-site-header .aa-site-links{flex-wrap:wrap;gap:12px 18px;flex-shrink:1;font-size:12px}
}