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1px 2px #15191712;--shadow-md:0 12px 30px #15191717;--shadow-lg:0 24px 60px #15191721;--transition-fast:.15s ease;--transition-base:.24s ease;--transition-slow:.42s cubic-bezier(.2, .7, .2, 1);--container-reading:720px;--container-content:960px;--container-wide:1180px;--header-height:68px}@media (width<=720px){:root{--header-height:60px;--space-3xl:3.5rem;--space-4xl:4.5rem;--text-4xl:2.25rem;--text-5xl:3rem}}@font-face{font-family:LXGW Neo ZhiSong;src:url(/fonts/LXGWNeoZhiSong.ttf)format("truetype");font-style:normal;font-weight:400 700;font-display:swap}@font-face{font-family:LXGW WenKai;src:url(/fonts/LXGWWenKai-Regular.ttf)format("truetype");font-style:normal;font-weight:400;font-display:swap}@font-face{font-family:LXGW WenKai;src:url(/fonts/LXGWWenKai-Medium.ttf)format("truetype");font-style:normal;font-weight:500 700;font-display:swap}:root{--font-serif:"LXGW Neo ZhiSong", "霞鹜新致宋", "Noto Serif SC", serif;--font-body:"LXGW Neo ZhiSong", "霞鹜新致宋", "Noto Serif SC", 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#9ea9a2b3;position:sticky;top:0}.header-inner[data-astro-cid-isef26zo]{grid-template-columns:1fr auto 1fr;align-items:center;height:100%;display:grid}.brand[data-astro-cid-isef26zo]{justify-self:start;align-items:center;gap:var(--space-xs);color:var(--color-ink);text-decoration:none;display:inline-flex}.brand-name[data-astro-cid-isef26zo]{font-size:var(--text-lg);font-weight:var(--font-bold)}.brand-code[data-astro-cid-isef26zo],.rss-link[data-astro-cid-isef26zo]{color:var(--color-muted);font-family:var(--font-mono);font-size:var(--text-xs)}.desktop-nav[data-astro-cid-isef26zo]{align-self:stretch;display:flex}.header-tools[data-astro-cid-isef26zo]{justify-self:end;align-items:center;display:flex}.rss-link[data-astro-cid-isef26zo]{padding:var(--space-xs);transition:color var(--transition-fast);text-decoration:none}.rss-link[data-astro-cid-isef26zo]:hover{color:var(--color-vermilion)}.mobile-nav[data-astro-cid-isef26zo]{display:none}@media 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