.zw-site-header,.zw-site-popover,.zw-site-mobile,.zw-site-footer{--zw-bg:#fff;--zw-ink:#1f1f1f;--zw-muted:#666;--zw-line:#e9e9e9;color:var(--zw-ink);font-family:'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;font-size:14px;line-height:1.5;letter-spacing:normal}
.zw-site-header *,.zw-site-popover *,.zw-site-mobile *,.zw-site-footer *{box-sizing:border-box;font-size-adjust:none;font-feature-settings:normal;font-variation-settings:normal;font-variant:normal;text-transform:none}
.zw-site-header a,.zw-site-mobile a,.zw-site-footer a{color:inherit;text-decoration:none}
.zw-site-header button,.zw-site-mobile button{font:inherit;color:inherit;cursor:pointer}
.zw-site-header{position:fixed;z-index:1500;top:24px;left:50%;display:flex;align-items:center;gap:10px;box-sizing:border-box;width:max-content;max-width:calc(100% - 32px);height:56px;margin:0;padding:8px 14px;border:1px solid #eeeeee80;border-radius:999px;background:#fffffff2;box-shadow:0 2px 12px #00000004;backdrop-filter:blur(12px);transform:translateX(-50%)}
.zw-site-document .zw-site-header .zw-site-brand{display:flex;align-items:center;justify-content:center;width:40px;height:40px;flex:0 0 40px}
.zw-site-document .zw-site-header .zw-site-brand img{display:block;width:36px;height:36px;max-width:none;object-fit:contain}
.zw-site-header nav{display:flex;align-items:center;gap:0;margin:0;padding:0}
.zw-site-header nav button{display:flex;align-items:center;justify-content:center;gap:4px;height:38px;padding:0 10px;border:0;border-radius:24px;background:transparent;white-space:nowrap}
.zw-site-header nav button:hover,.zw-site-header nav button[aria-expanded=true]{background:#f1f1f1}
.zw-site-header nav button svg{width:12px;height:12px;flex-shrink:0}
.zw-site-source,.zw-site-login{display:flex;align-items:center;justify-content:center;min-height:34px;padding:0 12px;border-radius:24px;font-size:13px;white-space:nowrap}
.zw-site-source{color:var(--zw-muted)!important;background:#f7f7f7}
.zw-site-login{background:#f5f5f5}
.zw-site-start{display:inline-flex;align-items:center;justify-content:center;min-height:34px;padding:0 16px;border:0;border-radius:24px;background:#222;color:#fff!important;font-size:13px;font-weight:500;white-space:nowrap;text-decoration:none}
.zw-site-space{height:104px}
.zw-site-header .zw-site-mobile-open{display:none}
.zw-site-popover{z-index:1490;overflow:auto;max-height:calc(100svh - 104px);overscroll-behavior:contain}
.zw-site-popover[hidden]{display:none!important}
.zw-site-popover>[role=dialog]{height:auto;min-height:0;outline:none}
.zw-site-popover .header-resource-featured img{object-fit:cover;object-position:center}
.zw-site-mobile{position:fixed;inset:0;box-sizing:border-box;width:calc(100% - 32px);max-width:440px;max-height:calc(100svh - 32px);margin:16px auto;padding:20px 24px 24px;border:1px solid var(--zw-line);border-radius:16px;background:var(--zw-bg);overscroll-behavior:contain}
.zw-site-mobile::backdrop{background:#0005;backdrop-filter:blur(3px)}
.zw-site-mobile:not([open]){display:none}
.zw-site-mobile-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:12px}
.zw-site-mobile-heading>a{display:flex;align-items:center;gap:8px}
.zw-site-mobile-heading img{display:block;width:28px;height:28px}
.zw-site-mobile-heading>button{width:44px;height:44px;padding:0;border:0;border-radius:8px;background:transparent;font-size:26px}
.zw-site-mobile section{width:auto;max-width:none;min-height:0;margin:0;padding:16px 0;border-top:1px solid var(--zw-line)}
.zw-site-mobile h2{margin:0 0 8px;padding:0;color:var(--zw-muted);font-size:13px;font-weight:400;line-height:1.5}
.zw-site-mobile section nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2px 12px;margin:0;padding:0}
.zw-site-mobile section nav>a{display:flex;align-items:center;min-height:44px;padding:4px 0;font-size:14px;overflow-wrap:anywhere}
.zw-site-mobile-account{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:18px;border-top:1px solid var(--zw-line)}
.zw-site-mobile-account>a{min-height:40px;display:inline-flex;align-items:center}
.zw-site-document.zw-site-mobile-opened{overflow:hidden}
.zw-site-footer{box-sizing:border-box;width:calc(100% - 48px);max-width:1152px;margin:80px auto 0;padding:40px 0 24px;border-top:1px solid var(--zw-line);background:transparent;text-align:left}
.zw-site-footer-columns{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:28px}
.zw-site-footer section{display:block;min-width:0;max-width:none;min-height:0;margin:0;padding:0}
.zw-site-footer h2{margin:0 0 14px;padding:0;color:var(--zw-ink);font-size:14px;font-weight:600;line-height:1.5}
.zw-site-footer-columns a{display:block;width:fit-content;margin:0;padding:7px 0;color:var(--zw-muted);font-size:13px;line-height:1.5}
.zw-site-footer a:hover{text-decoration:underline;text-underline-offset:4px}
.zw-site-footer-bottom{display:flex;align-items:center;gap:24px;margin-top:40px;padding-top:24px;border-top:1px solid var(--zw-line);color:var(--zw-muted);font-size:12px}
.zw-site-footer-brand{display:flex;align-items:center;gap:8px;margin-right:auto;color:var(--zw-ink)!important;font-size:18px}
.zw-site-footer-brand img{display:block;width:28px;height:28px;object-fit:contain}
.zw-site-footer-extras{display:flex;align-items:center}
.zw-site-footer .blog-theme-control{display:flex;align-items:center;gap:2px}
.zw-site-footer .blog-theme-control button{display:grid;place-items:center;width:32px;height:32px;padding:6px;border:1px solid transparent;border-radius:7px;background:transparent;color:var(--zw-muted);cursor:pointer}
.zw-site-footer .blog-theme-control button[aria-pressed=true]{border-color:var(--zw-line);background:var(--zw-bg);color:var(--zw-ink)}
.zw-site-header :focus-visible,.zw-site-mobile :focus-visible,.zw-site-popover a:focus-visible,.zw-site-footer :focus-visible{outline:2px solid #1677ff;outline-offset:3px}
[data-theme=dark] :is(.zw-site-header,.zw-site-mobile,.zw-site-footer){--zw-bg:#191919;--zw-ink:#eee;--zw-muted:#aaa;--zw-line:#333}
[data-theme=dark] .zw-site-header{background:#202020f2;border-color:#333}
[data-theme=dark] .zw-site-header nav button:hover,[data-theme=dark] .zw-site-header nav button[aria-expanded=true],[data-theme=dark] .zw-site-source,[data-theme=dark] .zw-site-login{background:#303030}
[data-theme=dark] .zw-site-start{background:#eee;color:#171717!important}
@media(max-width:767px){
  .zw-site-header{top:0;left:0;width:100%;max-width:none;height:64px;padding:0 16px;border:0;border-bottom:1px solid var(--zw-line);border-radius:0;box-shadow:none;transform:none}
  .zw-site-header nav,.zw-site-header .zw-site-source,.zw-site-header .zw-site-login{display:none}
  .zw-site-header .zw-site-mobile-open{display:grid;place-items:center;flex-shrink:0;width:40px;height:44px;margin:0 0 0 -8px;padding:0;border:0;border-radius:8px;background:transparent}
  .zw-site-header .zw-site-mobile-open svg{width:18px;height:18px}
  .zw-site-document .zw-site-header .zw-site-brand{width:36px;height:40px;flex-basis:36px}
  .zw-site-document .zw-site-header .zw-site-brand img{width:28px;height:28px}
  .zw-site-header .zw-site-start{margin-left:auto;min-height:36px}
  .zw-site-space{height:64px}
  .zw-site-popover{display:none!important}
  .zw-site-footer{width:calc(100% - 32px);margin-top:48px;padding-top:28px}
  .zw-site-footer-columns{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .zw-site-footer-columns a{padding:9px 0}
  .zw-site-footer-bottom{flex-wrap:wrap;gap:16px;margin-top:28px;padding-top:20px}
  .zw-site-footer-brand{flex-basis:100%}
  .zw-site-footer-extras{margin-left:auto}
}
@media(prefers-reduced-motion:no-preference){.zw-site-header nav button,.zw-site-source,.zw-site-login{transition:background .15s,color .15s}}