.astro-route-announcer{clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;top:0;left:0;overflow:hidden}.search-dialog{border:.0625rem solid var(--ix-line);background:var(--ix-card);width:min(40rem,100vw - 2rem);max-height:min(36rem,100vh - 6rem);color:var(--ix-ink);box-shadow:var(--ix-shadow-lg);border-radius:1rem;margin:5rem auto auto;padding:0;overflow:hidden}.search-dialog[open]{flex-direction:column;animation:.18s ease-out search-in;display:flex}.search-dialog::backdrop{backdrop-filter:blur(.125rem);background:#0a0e1459}@media (width<=40rem){.search-dialog{max-height:calc(100vh - 2rem);margin-top:1rem}}@keyframes search-in{0%{opacity:0;transform:translateY(-.5rem)scale(.98)}}.search-box{border-bottom:.0625rem solid var(--ix-line);align-items:center;gap:.75rem;padding:.875rem 1.125rem;display:flex}.search-box>svg{width:1.25rem;height:1.25rem;color:var(--ix-ink-3);flex:none}.search-input{min-width:0;color:var(--ix-ink);font:inherit;background:0 0;border:0;outline:0;flex:1;font-size:1.0625rem}.search-input::-webkit-search-cancel-button{display:none}.search-esc{border:.0625rem solid var(--ix-line);color:var(--ix-ink-3);font-family:var(--ix-mono);border-radius:.375rem;padding:.0625rem .375rem;font-size:.75rem}.search-results{margin:0;padding:.5rem;list-style:none;overflow-y:auto}.search-results:empty{display:none}.search-results a{color:var(--ix-ink);border-radius:.625rem;flex-direction:column;gap:.125rem;padding:.625rem .75rem;display:flex}.search-results a:hover,.search-results a:focus-visible{background:var(--ix-surface);outline:none}.search-results mark{background:var(--ix-accent-soft);color:var(--ix-accent);border-radius:.1875rem;padding:0 .0625rem}.search-title{font-weight:600}.search-meta{color:var(--ix-ink-3);font-size:.8125rem}.search-snippet{color:var(--ix-ink-2);font-size:.875rem;line-height:1.6}.search-hint{border-top:.0625rem solid var(--ix-line);color:var(--ix-ink-3);margin:0;padding:.625rem 1.125rem;font-size:.8125rem}.theme-icon-sun{display:none}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .theme-btn .theme-icon-moon{display:none}:root:not([data-theme=light]) .theme-btn .theme-icon-sun{display:block}}:root[data-theme=dark] .theme-btn .theme-icon-moon{display:none}:root[data-theme=dark] .theme-btn .theme-icon-sun{display:block}.site-header[data-astro-cid-fzpbxy5g]{z-index:50;background:var(--ix-header-bg);backdrop-filter:saturate(1.4)blur(.875rem);border-bottom:.0625rem solid #0000;transition:border-color .2s,box-shadow .2s;position:sticky;top:0}.site-header[data-astro-cid-fzpbxy5g].is-scrolled{border-bottom-color:var(--ix-line)}.site-header-inner[data-astro-cid-fzpbxy5g]{max-width:calc(var(--w-wide) + var(--gutter) * 2);height:var(--header-h);padding:0 var(--gutter);align-items:center;gap:1.5rem;margin:0 auto;display:flex}.brand[data-astro-cid-fzpbxy5g]{color:var(--ix-ink);font-family:var(--ix-serif);letter-spacing:.03rem;align-items:center;gap:.625rem;font-size:1.125rem;font-weight:600;display:inline-flex}.brand-avatar[data-astro-cid-fzpbxy5g]{object-fit:cover;width:2rem;height:2rem;box-shadow:0 0 0 .0625rem var(--ix-line);border-radius:50%}.site-nav[data-astro-cid-fzpbxy5g]{align-items:center;gap:.25rem;margin-right:auto;display:flex}.site-nav-link[data-astro-cid-fzpbxy5g]{color:var(--ix-ink-2);border-radius:.5rem;padding:.375rem .75rem;font-size:.9375rem;transition:color .2s,background .2s;position:relative}.site-nav-link[data-astro-cid-fzpbxy5g]:hover{color:var(--ix-ink);background:var(--ix-surface)}.site-nav-link[data-astro-cid-fzpbxy5g].is-active{color:var(--ix-ink);font-weight:600}.site-nav-link[data-astro-cid-fzpbxy5g].is-active:after{content:"";background:var(--ix-accent);border-radius:.125rem;height:.125rem;position:absolute;bottom:-.0625rem;left:.75rem;right:.75rem}.site-tools[data-astro-cid-fzpbxy5g]{align-items:center;gap:.5rem;display:flex}.menu-btn[data-astro-cid-fzpbxy5g]{display:none}@media (width<=48rem){.site-nav-link[data-astro-cid-fzpbxy5g].is-desktop-only{display:none}}@media (width<=56rem){.site-header-inner[data-astro-cid-fzpbxy5g]{gap:.75rem}.menu-btn[data-astro-cid-fzpbxy5g]{display:inline-flex}.site-nav[data-astro-cid-fzpbxy5g]{top:var(--header-h);padding:.5rem var(--gutter) 1rem;background:var(--ix-bg);border-bottom:.0625rem solid var(--ix-line);box-shadow:var(--ix-shadow);opacity:0;visibility:hidden;flex-direction:column;align-items:stretch;gap:0;margin:0;transition:opacity .2s,transform .2s,visibility .2s;position:absolute;left:0;right:0;transform:translateY(-.5rem)}.is-menu-open[data-astro-cid-fzpbxy5g] .site-nav[data-astro-cid-fzpbxy5g]{opacity:1;visibility:visible;transform:none}.site-nav-link[data-astro-cid-fzpbxy5g]{border-bottom:.0625rem solid var(--ix-line);padding:.75rem .5rem;font-size:1rem}.site-nav-link[data-astro-cid-fzpbxy5g]:last-child{border-bottom:0}.site-nav-link[data-astro-cid-fzpbxy5g].is-active:after{width:.1875rem;height:auto;inset:.875rem auto .875rem 0}.site-tools[data-astro-cid-fzpbxy5g]{margin-left:auto}.menu-line-1[data-astro-cid-fzpbxy5g],.menu-line-2[data-astro-cid-fzpbxy5g],.menu-line-3[data-astro-cid-fzpbxy5g]{transform-origin:50%;transition:transform .2s,opacity .2s}.is-menu-open[data-astro-cid-fzpbxy5g] .menu-line-1[data-astro-cid-fzpbxy5g]{transform:translateY(.3125rem)rotate(45deg)}.is-menu-open[data-astro-cid-fzpbxy5g] .menu-line-2[data-astro-cid-fzpbxy5g]{opacity:0}.is-menu-open[data-astro-cid-fzpbxy5g] .menu-line-3[data-astro-cid-fzpbxy5g]{transform:translateY(-.3125rem)rotate(-45deg)}}.icon-btn{width:2.25rem;height:2.25rem;color:var(--ix-ink-2);cursor:pointer;background:0 0;border:0;border-radius:.625rem;justify-content:center;align-items:center;padding:0;transition:background .2s,color .2s;display:inline-flex}.icon-btn svg{width:1.25rem;height:1.25rem}.icon-btn:hover{background:var(--ix-surface);color:var(--ix-ink)}.icon-btn:focus-visible{outline:.125rem solid var(--ix-accent);outline-offset:.125rem}.site-footer[data-astro-cid-nns7i3if]{border-top:.0625rem solid var(--ix-line);color:var(--ix-ink-3);margin-top:5rem;font-size:.8125rem}.site-footer-inner[data-astro-cid-nns7i3if]{max-width:calc(var(--w-wide) + var(--gutter) * 2);padding:1.75rem var(--gutter) calc(1.75rem + env(safe-area-inset-bottom,0rem));flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem 1.5rem;margin:0 auto;display:flex}.site-footer-inner[data-astro-cid-nns7i3if] p[data-astro-cid-nns7i3if]{margin:0}@media (width<=40rem){.site-footer-inner[data-astro-cid-nns7i3if]{text-align:center;padding-bottom:calc(5rem + env(safe-area-inset-bottom,0rem));flex-direction:column}}.footer-brand[data-astro-cid-nns7i3if]{color:var(--ix-ink-2)}.footer-sep[data-astro-cid-nns7i3if]{opacity:.6;margin:0 .375rem}.footer-links[data-astro-cid-nns7i3if]{gap:1rem;display:flex}.footer-links[data-astro-cid-nns7i3if] a[data-astro-cid-nns7i3if]{color:var(--ix-ink-3)}.footer-links[data-astro-cid-nns7i3if] a[data-astro-cid-nns7i3if]:hover{color:var(--ix-accent)}:root{color-scheme:light dark;--ix-bg:#fbfbfa;--ix-card:#fff;--ix-surface:#f3f5f7;--ix-surface-2:#e8edf2;--ix-line:#1f2d3d1a;--ix-line-strong:#1f2d3d2e;--ix-ink:#1f2933;--ix-ink-2:#4b5864;--ix-ink-3:#85919d;--ix-accent:#3a73a6;--ix-accent-strong:#2f6290;--ix-accent-soft:#3a73a61a;--ix-danger:#c2410c;--ix-shadow:0 .0625rem .125rem #1f2d3d0f, 0 .5rem 1.5rem #1f2d3d0f;--ix-shadow-lg:0 1.5rem 3rem #1f2d3d24;--ix-header-bg:#fbfbfad1;--ix-serif:"Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", "Noto Serif CJK SC", Georgia, serif;--ix-sans:-apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;--ix-mono:ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;--ix-radius:.875rem;--w-read:42rem;--w-page:48rem;--w-wide:72rem;--header-h:3.75rem;--gutter:1.5rem}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--ix-bg:#18191c;--ix-card:#212327;--ix-surface:#24262b;--ix-surface-2:#2e3036;--ix-line:#ffffff14;--ix-line-strong:#ffffff29;--ix-ink:#e7e9ec;--ix-ink-2:#b4bac2;--ix-ink-3:#868d96;--ix-accent:#7fb2db;--ix-accent-strong:#9cc4e4;--ix-accent-soft:#7fb2db24;--ix-danger:#fb923c;--ix-shadow:0 .0625rem .125rem #0000004d, 0 .5rem 1.5rem #0000004d;--ix-shadow-lg:0 1.5rem 3rem #00000073;--ix-header-bg:#18191ccc}}:root[data-theme=dark]{--ix-bg:#18191c;--ix-card:#212327;--ix-surface:#24262b;--ix-surface-2:#2e3036;--ix-line:#ffffff14;--ix-line-strong:#ffffff29;--ix-ink:#e7e9ec;--ix-ink-2:#b4bac2;--ix-ink-3:#868d96;--ix-accent:#7fb2db;--ix-accent-strong:#9cc4e4;--ix-accent-soft:#7fb2db24;--ix-danger:#fb923c;--ix-shadow:0 .0625rem .125rem #0000004d, 0 .5rem 1.5rem #0000004d;--ix-shadow-lg:0 1.5rem 3rem #00000073;--ix-header-bg:#18191ccc;color-scheme:dark}:root[data-theme=light]{color-scheme:light}@media (width<=40rem){:root{--gutter:1rem}}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:calc(var(--header-h) + 1rem);background:var(--ix-bg)}body{background:var(--ix-bg);min-height:100vh;color:var(--ix-ink);font-family:var(--ix-sans);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;flex-direction:column;margin:0;font-size:1rem;line-height:1.7;display:flex}main{flex:1}img,svg,video{max-width:100%}img{height:auto}a{color:var(--ix-accent);text-decoration:none}a:focus-visible{outline:.125rem solid var(--ix-accent);outline-offset:.125rem}button{font:inherit;color:inherit}::selection{background:var(--ix-accent-soft);color:var(--ix-ink)}h1,h2,h3,h4{font-family:var(--ix-serif);color:var(--ix-ink);text-wrap:balance;font-weight:600;line-height:1.35}.container{width:100%;max-width:calc(var(--w-page) + var(--gutter) * 2);padding:0 var(--gutter);margin:0 auto}.container--read{max-width:calc(var(--w-read) + var(--gutter) * 2)}.container--wide{max-width:calc(var(--w-wide) + var(--gutter) * 2)}.page-head{padding:3.5rem 0 1.5rem}.page-head h1{letter-spacing:.04rem;margin:0;font-size:2.25rem}.page-head p{color:var(--ix-ink-3);margin:.5rem 0 0}@media (width<=40rem){.page-head{padding:2.25rem 0 1rem}.page-head h1{font-size:1.75rem}}.tag-chip{background:var(--ix-surface);color:var(--ix-ink-2);white-space:nowrap;border-radius:62.4375rem;align-items:center;gap:.25rem;padding:.0625rem .625rem;font-size:.8125rem;line-height:1.6;transition:background .2s,color .2s;display:inline-flex}.tag-chip:hover{background:var(--ix-accent-soft);color:var(--ix-accent)}.tag-chip small{color:var(--ix-ink-3);font-size:.75rem}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;width:.0625rem;height:.0625rem;overflow:hidden;position:absolute!important}.skip-link{z-index:100;background:var(--ix-accent);color:#fff;border-radius:.5rem;padding:.5rem 1rem;position:fixed;top:-3rem;left:1rem}.skip-link:focus{top:.75rem}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}.ix-muted{color:var(--ix-ink-3);margin:0;font-size:.8125rem}.ix-empty{color:var(--ix-ink-3);text-align:center;margin:0;padding:1.5rem 0}.ix-notice{color:var(--ix-ink-2);min-height:1.25rem;margin:.5rem 0 0;font-size:.875rem}.ix-text-btn{font:inherit;color:var(--ix-ink-3);cursor:pointer;background:0 0;border:0;border-radius:.375rem;margin:0;padding:.25rem .375rem;font-size:.8125rem}.ix-text-btn:hover{color:var(--ix-accent)}.ix-text-btn:focus-visible{outline:.125rem solid var(--ix-accent);outline-offset:.0625rem}.ix-chip-btn{border:.0625rem solid var(--ix-line);background:var(--ix-bg);color:var(--ix-ink);font:inherit;cursor:pointer;border-radius:62.4375rem;align-items:center;gap:.5rem;padding:.3rem .8rem .3rem .35rem;font-size:.875rem;transition:border-color .2s,background .2s;display:inline-flex}.ix-chip-btn:hover{border-color:var(--ix-accent)}.ix-chip-btn:focus-visible{outline:.125rem solid var(--ix-accent);outline-offset:.125rem}.ix-count{box-sizing:border-box;background:var(--ix-accent);min-width:1.25rem;height:1.25rem;color:var(--ix-bg);text-align:center;font-variant-numeric:tabular-nums;border-radius:62.4375rem;padding:0 .35rem;font-size:.75rem;line-height:1.25rem}.ix-chip{background:var(--ix-accent-soft);color:var(--ix-accent);border-radius:62.4375rem;padding:0 .5rem;font-size:.75rem;line-height:1.375rem;display:inline-block}.ix-avatar{--avatar-hue:210;background:hsl(var(--avatar-hue), 45%, 88%);width:2rem;height:2rem;color:hsl(var(--avatar-hue), 40%, 32%);user-select:none;border-radius:50%;flex:none;justify-content:center;align-items:center;font-size:.875rem;font-weight:600;display:inline-flex}.ix-avatar--sm{width:1.5rem;height:1.5rem;font-size:.75rem}.ix-avatar--lg{width:3rem;height:3rem;font-size:1.25rem}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .ix-avatar{background:hsl(var(--avatar-hue), 25%, 30%);color:hsl(var(--avatar-hue), 50%, 85%)}}:root[data-theme=dark] .ix-avatar{background:hsl(var(--avatar-hue), 25%, 30%);color:hsl(var(--avatar-hue), 50%, 85%)}.ix-like{font:inherit;color:var(--ix-ink-3);cursor:pointer;font-variant-numeric:tabular-nums;background:0 0;border:0;border-radius:.375rem;align-items:center;gap:.3rem;margin:0;padding:.25rem .4rem;font-size:.8125rem;transition:color .2s;display:inline-flex}.ix-like .ix-thumb{width:1.05rem;height:1.05rem;transition:transform .2s}.ix-like:hover{color:var(--ix-accent)}.ix-like:active .ix-thumb{transform:scale(.88)}.ix-like.is-on{color:var(--ix-accent)}.ix-like:disabled{opacity:.6;cursor:progress}.ix-like:focus-visible{outline:.125rem solid var(--ix-accent);outline-offset:.0625rem}.ix-like--sm{padding:.125rem .25rem;font-size:.75rem}.ix-like--sm .ix-thumb{width:.9rem;height:.9rem}.ix-reply-to{color:var(--ix-ink-3);font-size:.8125rem}.ix-thread{flex-direction:column;display:flex}.ix-comment{border-bottom:.0625rem solid var(--ix-line);gap:.75rem;padding:.875rem 0;display:flex}.ix-comment:last-child{border-bottom:0}.ix-comment--reply{border-bottom:0;gap:.5rem;padding:.625rem 0 0}.ix-comment-main{flex:1;min-width:0}.ix-comment-head{flex-wrap:wrap;align-items:baseline;gap:.5rem;display:flex}.ix-comment-head strong{color:var(--ix-ink);font-size:.875rem;font-weight:600}.ix-comment-head time{color:var(--ix-ink-3);font-size:.75rem}.ix-comment-text{color:var(--ix-ink);white-space:pre-wrap;overflow-wrap:anywhere;margin:.25rem 0 .125rem;line-height:1.7}.ix-comment-actions{align-items:center;gap:.25rem;margin-left:-.4rem;display:flex}.ix-replies{border-left:.125rem solid var(--ix-line);margin-top:.25rem;padding-left:.875rem}.ix-composer{border-top:.0625rem solid var(--ix-line);padding-top:.75rem}.ix-reply-context{background:var(--ix-accent-soft);color:var(--ix-accent);border-radius:.5rem;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:.5rem;padding:.375rem .375rem .375rem .75rem;font-size:.8125rem;display:flex}.ix-reply-context>span{overflow-wrap:anywhere;min-width:0}.ix-composer-foot{justify-content:space-between;align-items:center;gap:1rem;margin-top:.625rem;display:flex}.ix-composer-foot .ix-muted{min-width:0}.ix-modal{max-width:calc(100vw - 2rem);max-height:85vh;overflow:auto;width:26rem!important}.ix-modal .n-card-header__main{font-family:var(--ix-serif);font-weight:600}.ix-modal .n-input{margin-bottom:.875rem}.ix-modal--wide{width:32rem!important}.ix-account-list{flex-direction:column;gap:.5rem;margin-top:.75rem;display:flex}.ix-account{border:.0625rem solid var(--ix-line);width:100%;color:var(--ix-ink);font:inherit;text-align:left;cursor:pointer;background:0 0;border-radius:.625rem;align-items:center;gap:.75rem;padding:.625rem .75rem;transition:border-color .2s,background .2s;display:flex}.ix-account:hover:not(:disabled){border-color:var(--ix-accent);background:var(--ix-accent-soft)}.ix-account:focus-visible{outline:.125rem solid var(--ix-accent);outline-offset:.125rem}.ix-me{align-items:center;gap:1rem;margin-bottom:1.25rem;display:flex}.ix-me strong{font-size:1.125rem}.ix-me .ix-muted{margin-top:.25rem}.ix-notice-list{margin:0;padding:0;list-style:none}.ix-notice-item{border-bottom:.0625rem solid var(--ix-line);gap:.75rem;padding:.75rem 0;display:flex}.ix-notice-item:last-child{border-bottom:0}.ix-notice-body{flex:1;min-width:0}.ix-notice-body p{color:var(--ix-ink-2);white-space:pre-wrap;overflow-wrap:anywhere;margin:.25rem 0}.ix-notice-head{color:var(--ix-ink-2);flex-wrap:wrap;align-items:center;gap:.375rem;font-size:.875rem;display:flex}.ix-notice-head strong{color:var(--ix-ink)}@media (prefers-reduced-motion:reduce){.ix-like .ix-thumb,.ix-chip-btn{transition:none}}.ix-thread ul,.ix-modal ul,.ix-notice-list ul,.ix-thread ol,.ix-modal ol,.ix-notice-list ol{margin:0;padding:0;list-style:none}.ix-thread p,.ix-modal p,.ix-notice-list p{margin-top:0}.ix-new-name{margin-top:1rem}.ix-modal .ix-notice-list{margin-top:.25rem}