@font-face{font-family:Noto Serif SC;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/noto-serif-sc-400.dd5626f0.woff2)format("woff2")}@font-face{font-family:Noto Serif SC;font-style:normal;font-weight:600;font-display:swap;src:url(/fonts/noto-serif-sc-600.da284376.woff2)format("woff2")}@font-face{font-family:Noto Sans SC;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/noto-sans-sc-400.8791ceb3.woff2)format("woff2")}@font-face{font-family:Noto Sans SC;font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/noto-sans-sc-500.6272743f.woff2)format("woff2")}@font-face{font-family:Spectral;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/spectral-400.cf8daee3.woff2)format("woff2")}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/source-sans-3-400.0f73f35e.woff2)format("woff2")}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/source-sans-3-500.3b3a8b8e.woff2)format("woff2")}:root{--paper:#eef1f5;--hover:#e4e9f1;--ink:#0b1220;--ink-soft:#526079;--rule:#cbd2de;--seal:#a31f34;--seal-ink:#f4f6fa;--icon:#0b1220;--icon-ink:#eef1f5;--serif:"Spectral", "Noto Serif SC", serif;--serif-cjk:"Noto Serif SC", serif;--sans:"Source Sans 3", "Noto Sans SC", sans-serif;--page:72rem;--gutter:1.25rem;color-scheme:light dark}@media (width>=40em){:root{--gutter:2rem}}@media (width>=64em){:root{--gutter:3rem}}@media (prefers-color-scheme:dark){:root{--paper:#101624;--hover:#192235;--ink:#e8edf5;--ink-soft:#a6b1c5;--rule:#344056;--seal:#c63a4c;--icon:#e8edf5;--icon-ink:#101624}}*,:before,:after{box-sizing:border-box}html{background:var(--paper);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;font-kerning:normal;line-height:1.55}body{flex-direction:column;min-height:100dvh;margin:0;display:flex}a{color:inherit;text-underline-offset:.2em;text-decoration:underline 1px;text-decoration-color:var(--rule);transition:text-decoration-color .14s}a:hover{text-decoration-color:currentColor}:focus-visible{outline:2px solid var(--seal);outline-offset:3px;border-radius:2px}main:focus{outline:none}::selection{background:var(--seal);color:var(--seal-ink)}:lang(zh-Hans){line-break:strict;word-break:normal;overflow-wrap:break-word;text-autospace:normal;text-spacing-trim:normal;hanging-punctuation:allow-end;font-style:normal;line-height:1.75}html[data-lang=en] [data-locale=zh],html[data-lang=zh] [data-locale=en]{display:none}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important}}.seal[data-astro-cid-lojqx2gf]{flex:none;display:block}.seal--stamp[data-astro-cid-lojqx2gf]{transform-box:view-box;transform-origin:33% 46%;animation:.64s cubic-bezier(.2,.9,.3,1) .2s both stamp}.seal--restamp{animation-delay:0s!important}@keyframes stamp{0%{opacity:0;transform:scale(1.25)rotate(-3deg)}28%{opacity:1}60%{opacity:1;transform:scale(.985)rotate(.4deg)}to{opacity:1;transform:scale(1)rotate(0)}}@media (prefers-reduced-motion:reduce){.seal--stamp[data-astro-cid-lojqx2gf]{animation:none}}.site-header[data-astro-cid-fzpbxy5g]{padding:1.25rem var(--gutter) 0;width:100%;max-width:var(--page);font-family:var(--sans);align-items:center;gap:1.5rem;margin:0 auto;font-size:1.0625rem;display:flex}.brand[data-astro-cid-fzpbxy5g]{align-items:center;min-height:44px;display:flex}.nav[data-astro-cid-fzpbxy5g]{gap:1.25rem;margin-left:auto;display:flex}.nav[data-astro-cid-fzpbxy5g] a[data-astro-cid-fzpbxy5g]{color:var(--ink-soft);padding:.6rem 0;text-decoration:none}.nav[data-astro-cid-fzpbxy5g] a[data-astro-cid-fzpbxy5g]:hover,.nav[data-astro-cid-fzpbxy5g] a[data-astro-cid-fzpbxy5g][aria-current=page]{color:var(--ink)}.lang[data-astro-cid-fzpbxy5g]{background:var(--hover);border-radius:999px;gap:2px;padding:3px;display:inline-flex}.lang__btn[data-astro-cid-fzpbxy5g]{appearance:none;min-width:2.75rem;min-height:2rem;font:inherit;color:var(--ink-soft);cursor:pointer;background:0 0;border:0;border-radius:999px;margin:0;padding:.3rem .7rem;font-size:.9375rem;font-weight:500;line-height:1.2;transition:background-color .14s,color .14s}.lang__btn[data-astro-cid-fzpbxy5g]:hover{color:var(--ink)}.lang__btn[data-astro-cid-fzpbxy5g][aria-pressed=true]{background:var(--ink);color:var(--paper)}.lang__btn[data-astro-cid-fzpbxy5g]:focus-visible{outline-offset:1px}.lang__btn[data-astro-cid-fzpbxy5g]{position:relative}.lang__btn[data-astro-cid-fzpbxy5g]:before{content:"";position:absolute;inset:-6px 0}@media (width<=40em){.site-header[data-astro-cid-fzpbxy5g]{gap:1rem}}