:root{--color-ink:#141414;--color-black:#000;--color-red:#d42e12;--color-yellow:#f5e814;--color-paper:#fafaf7;--color-mist:#ecece7;--color-slate:#5a5a54;--text-body:clamp(1.0625rem, .98rem + .3vw, 1.1875rem);--text-h1:clamp(2.125rem, 1.5rem + 3vw, 3.5rem);--text-h2:clamp(1.5rem, 1.2rem + 1.5vw, 2.25rem);--text-small:.875rem;--font-body:-apple-system, "Segoe UI", Roboto, "Noto Sans", sans-serif;--font-cjk:"PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;--space-1:.5rem;--space-2:1rem;--space-3:1.5rem;--space-4:2rem;--space-6:3rem;--radius-squircle:18px;--radius-squircle-pct:22%;--layout-max:1120px;--header-height:56px;--motion-medium:.5s;--motion-ease:ease-out}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}.lang-switcher[data-astro-cid-3s4v7zxg]{font-size:var(--text-small);position:relative}summary[data-astro-cid-3s4v7zxg]{min-height:44px;padding:0 var(--space-1);cursor:pointer;color:var(--color-ink);border-radius:8px;align-items:center;gap:.35rem;list-style:none;display:flex}summary[data-astro-cid-3s4v7zxg]::-webkit-details-marker{display:none}summary[data-astro-cid-3s4v7zxg]:hover{color:var(--color-red)}ul[data-astro-cid-3s4v7zxg]{padding:var(--space-1);background:var(--color-paper);flex-direction:column;gap:0;max-height:70vh;margin:0;list-style:none;display:flex;overflow-y:auto}a[data-astro-cid-3s4v7zxg]{min-height:44px;padding:0 var(--space-1);color:var(--color-ink);white-space:nowrap;align-items:center;text-decoration:none;display:flex}a[data-astro-cid-3s4v7zxg]:hover{color:var(--color-red)}a[data-astro-cid-3s4v7zxg][aria-current=true]{color:var(--color-red);font-weight:700}@media (width>=901px){.lang-switcher[data-astro-cid-3s4v7zxg]{border-left:1px solid var(--color-mist);padding-left:var(--space-2)}ul[data-astro-cid-3s4v7zxg]{border:2px solid var(--color-red);z-index:20;border-radius:8px;min-width:10rem;position:absolute;top:100%;right:0;box-shadow:0 8px 24px #0000002e}}@media (width<=900px){.lang-switcher[data-astro-cid-3s4v7zxg]{border-top:1px solid var(--color-mist);margin-top:var(--space-1);padding-top:var(--space-1)}ul[data-astro-cid-3s4v7zxg]{width:100%}}*{box-sizing:border-box}sup{font-size:.65em;line-height:0}body{font-family:var(--font-body);font-size:var(--text-body);color:var(--color-ink);background:var(--color-paper);margin:0;line-height:1.6}:lang(zh-Hans),:lang(zh-CN),:lang(zh-HK){font-family:var(--font-cjk)}.skip-link{background:var(--color-black);color:var(--color-yellow);padding:var(--space-1) var(--space-2);z-index:100;position:absolute;top:0;left:-9999px}.skip-link:focus{left:0}.site-header{z-index:10;height:var(--header-height);background:var(--color-paper);border-bottom:2px solid var(--color-red);position:sticky;top:0}.header-inner{max-width:var(--layout-max);height:100%;padding:0 var(--space-2);align-items:center;gap:var(--space-3);margin:0 auto;display:flex}.brand{align-items:center;gap:var(--space-1);color:var(--color-ink);font-weight:700;text-decoration:none;display:flex}.main-nav ul{gap:var(--space-2);margin:0;padding:0;list-style:none;display:flex}.main-nav{margin-left:auto}.main-nav a{color:var(--color-ink);padding:var(--space-1) .25rem;text-decoration:none}.main-nav a:hover{color:var(--color-red)}.main-nav a[aria-current=page]{color:var(--color-red);border-bottom:2px solid var(--color-red)}.nav-toggle{display:none}.nav-panel{display:contents}@media (width<=900px){.nav-toggle{margin-left:auto;display:block}.nav-toggle summary{cursor:pointer;width:44px;height:44px;color:var(--color-ink);border-radius:8px;justify-content:center;align-items:center;list-style:none;display:flex}.nav-toggle summary::-webkit-details-marker{display:none}.nav-toggle summary:hover{color:var(--color-red)}.nav-panel{display:none}.nav-toggle[open]+.nav-panel{background:var(--color-paper);border-bottom:2px solid var(--color-red);padding:var(--space-1) var(--space-2);display:block;position:absolute;top:100%;left:0;right:0}.nav-panel .main-nav ul{flex-direction:column;gap:0}.nav-panel .main-nav a{align-items:center;min-height:44px;display:flex}.nav-panel .main-nav a[aria-current=page]{border-bottom:none}}#main,:target{scroll-margin-top:calc(var(--header-height) + 8px)}main{max-width:var(--layout-max);padding:var(--space-4) var(--space-2);min-height:60vh;margin:0 auto}.site-footer{background:var(--color-black);color:var(--color-paper);padding:var(--space-3) var(--space-2)}.footer-inner{max-width:var(--layout-max);align-items:center;gap:var(--space-2);flex-wrap:wrap;margin:0 auto;display:flex}.site-footer .privacy,.site-footer .copyright{font-size:var(--text-small);margin:0}.site-footer .privacy{color:var(--color-yellow)}.site-footer .version{font-size:var(--text-small);color:var(--color-mist);margin:0}.footer-contact{color:var(--color-paper);margin-left:auto}a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--color-red);outline-offset:2px}.site-footer a:focus-visible,.skip-link:focus-visible{outline-color:var(--color-yellow)}main h1{font-size:var(--text-h1);margin:0 0 var(--space-2);line-height:1.15}main p{max-width:68ch}.signoff{margin-top:var(--space-4);color:var(--color-red);font-weight:700}