.site-header{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--ground) 88%,transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}.site-header .sh-inner{max-width:1080px;margin:0 auto;padding:13px 24px;display:flex;align-items:center;gap:20px;min-height:60px}.site-header .sh-hamburger{display:none;align-items:center;justify-content:center;width:34px;height:34px;margin-right:2px;border-radius:6px;border:1px solid var(--line-strong);background:transparent;color:var(--ink2);cursor:pointer}.site-header .sh-hamburger:hover{border-color:var(--jade);color:var(--jade)}.site-header .sh-wordmark{display:flex;align-items:center;gap:8px;font-family:var(--mono);font-size:17px;font-weight:700;letter-spacing:-.02em}.site-header .sh-wordmark,.site-header .sh-wordmark:hover{color:var(--ink);text-decoration:none}.site-header .sh-mark{width:17px;height:22px;color:var(--jade);display:inline-block;flex:none}.site-header .sh-nav{margin-left:auto;display:flex;align-items:center;gap:22px}.site-header .sh-nav a{font-family:var(--mono);font-size:12.5px;color:var(--ink2);text-decoration:none}.site-header .sh-nav a:hover{color:var(--jade);text-decoration:none}.site-header .sh-btn{display:inline-flex;align-items:center;font-family:var(--mono);font-size:13.5px;font-weight:600;padding:9px 16px;border-radius:6px;background:var(--jade-btn);color:#ffffff;white-space:nowrap}.site-header .sh-btn:hover{background:var(--jade-deep);color:#ffffff}.site-header .theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:6px;border:1px solid var(--line-strong);background:transparent;color:var(--ink2);cursor:pointer}.site-header .theme-toggle:hover{border-color:var(--jade);color:var(--jade)}@media (max-width:767px){.site-header .sh-hamburger{display:inline-flex}}@media (max-width:720px){.site-header .sh-nav a.sh-hide-sm{display:none}.site-header .sh-inner{gap:12px}}