:root{color:#000;color-scheme:light;font-synthesis:none;--text:#000;--secondary:#444;--muted:#666;--link:#2463a6;--link-hover:#184b80;--brand:#244766;--border:#d8d8d8;--control-border:#c4c4c4;--surface:#f7f7f7;--hover-surface:#f2f6fa;background:#fff;font-family:Arial,Microsoft YaHei,PingFang SC,sans-serif}*{box-sizing:border-box;letter-spacing:0}html{scroll-padding-top:20px}body{-webkit-font-smoothing:antialiased;margin:0;font-size:15px;line-height:1.7}a{color:var(--link);text-underline-offset:3px;text-decoration:none}a:hover{color:var(--link-hover);text-decoration:underline}button,input{font:inherit;color:inherit}button{cursor:pointer;background:0 0;border:0;padding:0}input{background:#fff}:focus-visible{outline:2px solid var(--link);outline-offset:3px}img{max-width:100%;height:auto;display:block}h1,h2,h3,p{margin-top:0}svg{stroke-width:1.8px;flex-shrink:0;display:block}[hidden]{display:none!important}.site-shell{flex-direction:column;width:min(1100px,100% - 64px);min-height:100svh;margin:0 auto;display:flex}.visually-hidden{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.skip-link{border:1px solid var(--link);z-index:20;background:#fff;padding:8px 14px;position:fixed;top:-100px;left:16px}.skip-link:focus{top:12px}.masthead{align-items:center;min-height:78px;padding:14px 0;display:flex}.wordmark{color:var(--brand);overflow-wrap:anywhere;font-size:30px;font-weight:700;line-height:1.3}.wordmark:hover{color:var(--brand);text-decoration:none}.navigation{border-bottom:1px solid var(--border);background:linear-gradient(#fff,#f3f3f3);justify-content:space-between;align-items:center;gap:12px;min-height:42px;padding:0 12px;display:flex}.navigation-links{flex-wrap:wrap;gap:16px;min-width:0;display:flex}.nav-link{color:var(--secondary);border-bottom:2px solid #0000;padding:9px 10px 7px;font-size:14px;line-height:24px}.nav-link.active{color:var(--link);border-bottom-color:var(--link);font-weight:700}.icon-button{width:34px;height:34px;color:var(--secondary);flex-shrink:0;place-items:center;display:inline-grid}.icon-button:hover{color:var(--link);background:var(--hover-surface)}.page-layout{flex:1;grid-template-columns:minmax(0,1fr) 210px;align-content:start;gap:32px;padding:25px 0 40px;display:grid}.page-layout main{min-width:0}.page-layout main:focus{outline:none}.page-layout.single-column{grid-template-columns:minmax(0,1fr)}.page-heading{border-bottom:1px solid var(--border);justify-content:space-between;align-items:baseline;gap:14px;padding-bottom:10px;display:flex}.page-heading h1{overflow-wrap:anywhere;margin:0;font-size:21px;font-weight:700;line-height:1.5}.page-count{color:var(--muted);white-space:nowrap;font-size:12px}.entry-item{border-bottom:1px solid var(--border);padding:19px 0 17px}.entry-heading{justify-content:space-between;align-items:baseline;gap:18px;margin-bottom:7px;display:flex}.entry-title{overflow-wrap:anywhere;min-width:0;margin:0;font-size:18px;font-weight:600;line-height:1.6}.entry-title a,.archive-row a{color:var(--text)}.entry-title a:hover,.entry-title a:focus-visible,.archive-row a:hover,.archive-row a:focus-visible{color:var(--link)}.entry-heading time{color:var(--muted);white-space:nowrap;font-variant-numeric:tabular-nums;font-size:12px}.entry-description{color:var(--secondary);overflow-wrap:anywhere;margin:0 0 8px;font-size:14px;line-height:1.8}.entry-meta{align-items:baseline;gap:15px;font-size:12px;display:flex}.pinned-label{color:var(--brand);flex-shrink:0;font-weight:700}.entry-tags{flex-wrap:wrap;gap:4px 14px;font-size:12px;display:flex}.entry-tags a{overflow-wrap:anywhere}.sidebar{border-left:1px solid var(--border);align-self:start;min-width:0;padding-left:24px}.profile{align-items:center;gap:12px;display:flex}.avatar{object-fit:cover;flex-shrink:0;width:56px;height:56px}.profile-name{overflow-wrap:anywhere;font-size:17px;font-weight:600}.sidebar-tags{border-top:1px solid var(--border);margin-top:25px;padding-top:17px}.sidebar-tags h2{margin:0 0 10px;font-size:14px;font-weight:600}.tag-links{flex-wrap:wrap;gap:8px 17px;font-size:13px;display:flex}.tag-links a{overflow-wrap:anywhere}.site-footer{color:var(--muted);border-top:1px solid var(--border);flex-wrap:wrap;align-items:center;gap:9px;min-height:58px;padding:16px 0;font-size:12px;display:flex}.archive-month{margin:20px 0 26px;scroll-margin-top:20px}.archive-month:last-child{margin-bottom:0}.archive-month h2{margin:0 0 8px;font-size:16px;font-weight:600}.archive-row{border-bottom:1px solid var(--border);grid-template-columns:44px minmax(0,1fr);align-items:baseline;gap:16px;padding:9px 0;display:grid}.archive-row time{color:var(--muted);font-variant-numeric:tabular-nums;font-size:12px}.archive-row a{overflow-wrap:anywhere;font-size:14px}.tag-directory{max-width:780px}.tag-directory>div{border-bottom:1px solid var(--border);justify-content:space-between;align-items:baseline;gap:20px;padding:12px 0;display:flex}.tag-directory a{overflow-wrap:anywhere}.tag-directory span{color:var(--muted);white-space:nowrap;font-size:12px}.article-header{margin-bottom:24px}.article-header h1{overflow-wrap:anywhere;margin:0 0 12px;font-size:26px;font-weight:700;line-height:1.5}.article-meta{flex-wrap:wrap;align-items:baseline;gap:8px 22px;font-size:12px;display:flex}.article-meta time{color:var(--muted);font-variant-numeric:tabular-nums}.article-toc{border-top:1px solid var(--border);border-bottom:1px solid var(--border);margin-bottom:24px;padding:9px 0;font-size:13px}.article-toc summary{color:var(--link);cursor:pointer}.article-toc summary:hover{color:var(--link-hover)}.article-toc nav{flex-direction:column;gap:6px;padding:12px 0 3px 15px;display:flex}.article-toc a{overflow-wrap:anywhere;align-self:flex-start;max-width:100%}.article-toc .toc-nested{padding-left:14px}.prose{overflow-wrap:anywhere;font-size:16px;line-height:1.9}.prose p{margin:0 0 20px}.prose h2{margin:31px 0 14px;scroll-margin-top:20px;font-size:21px;font-weight:700}.prose h3{margin:24px 0 12px;scroll-margin-top:20px;font-size:18px;font-weight:600}.prose ul,.prose ol{margin:0 0 20px;padding-left:24px}.prose li{margin-bottom:5px;padding-left:3px}.prose a{text-decoration:underline}.prose blockquote{color:var(--secondary);border-left:3px solid var(--control-border);margin:22px 0;padding:2px 0 2px 17px}.prose blockquote p{margin:0}.prose code{font-family:Consolas,Courier New,monospace;font-size:.9em}.prose :not(pre)>code{border:1px solid var(--border);background:var(--surface);padding:1px 3px}.prose pre{background:var(--surface);border:1px solid var(--border);max-width:100%;margin:22px 0;padding:16px 18px;font-size:13px;line-height:1.8;overflow-x:auto}.prose pre code{font-size:inherit;white-space:pre}.prose table{border-collapse:collapse;width:100%;margin:22px 0;font-size:14px;display:block;overflow-x:auto}.prose th,.prose td{border:1px solid var(--control-border);text-align:left;min-width:110px;padding:8px 12px}.prose th{background:var(--surface);font-weight:700}.prose img{width:100%;height:auto;margin:24px 0 10px}.prose figure{margin:24px 0}.prose figcaption{color:var(--muted);text-align:center;font-size:12px}.prose hr{border:0;border-top:1px solid var(--border);margin:27px 0}.prose strong{font-weight:700}.post-navigation{border-top:1px solid var(--border);grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;margin-top:30px;padding-top:18px;display:grid}.post-navigation a{flex-direction:column;min-width:0;display:flex}.post-navigation span{color:var(--muted);margin-bottom:5px;font-size:12px}.post-navigation strong{overflow-wrap:anywhere;font-size:14px;font-weight:400}.previous-post{grid-column:1}.next-post{text-align:right;grid-column:2;align-items:flex-end}.about-profile{align-items:center;gap:15px;padding-top:24px;display:flex}.about-profile p{margin:0;font-size:18px}.search-dialog{border:1px solid var(--control-border);color:#000;background:#fff;width:min(600px,100% - 32px);max-height:84dvh;margin:8dvh auto auto;padding:18px}.search-dialog::backdrop{background:#00000040}.search-dialog-header{align-items:center;gap:10px;display:flex}.search-form{flex:1;min-width:0}.search-form input{border:1px solid var(--control-border);appearance:none;border-radius:0;width:100%;min-width:0;padding:9px 10px;font-size:16px;display:block}.search-form input:focus{border-color:var(--link)}.search-form input::placeholder{color:var(--muted);opacity:1}.search-form input::-webkit-search-cancel-button{display:none}.search-status{color:var(--muted);margin:15px 0 10px;font-size:12px}.search-results{max-height:59dvh;overflow-y:auto}.search-result{color:var(--text);border-top:1px solid var(--border);grid-template-columns:minmax(0,1fr) auto;gap:5px 14px;padding:14px 0;display:grid}.search-result:hover,.search-result:focus-visible{color:var(--link);background:var(--hover-surface);text-decoration:none}.search-result:hover strong,.search-result:focus-visible strong{text-decoration:underline}.search-result strong{overflow-wrap:anywhere;font-size:15px;font-weight:600}.search-result-date{color:var(--muted);white-space:nowrap;padding-top:3px;font-size:11px}.search-result p{color:var(--secondary);overflow-wrap:anywhere;grid-column:1/-1;margin:0;font-size:13px}.empty-message{color:var(--muted);margin:0;padding:18px 0;font-size:14px}@media (width<=1000px){.site-shell{width:calc(100% - 48px)}.page-layout{grid-template-columns:minmax(0,1fr) 185px;gap:25px}.sidebar{padding-left:20px}.entry-heading{flex-wrap:wrap;gap:3px 15px}}@media (width<=760px){.site-shell{width:calc(100% - 36px)}.masthead{min-height:68px}.wordmark{font-size:27px}.page-layout{grid-template-columns:minmax(0,1fr);gap:28px;padding-top:21px;padding-bottom:28px}.sidebar{border-left:0;border-top:1px solid var(--border);grid-template-columns:auto minmax(0,1fr);gap:28px;padding:20px 0 0;display:grid}.sidebar-tags{border:0;margin:0;padding:0}.entry-heading{display:block}.entry-heading time{margin-top:4px;display:block}.entry-title{font-size:18px}.article-header h1{font-size:24px}}@media (width<=480px){.navigation{gap:8px;padding:0 7px}.navigation-links{gap:7px}.nav-link{padding-left:8px;padding-right:8px}.page-heading h1{font-size:20px}.entry-item{padding:17px 0}.entry-description{font-size:14px}.sidebar{grid-template-columns:minmax(0,1fr);gap:19px}.sidebar-tags h2{margin-bottom:7px}.article-header h1{font-size:22px}.prose h2{font-size:20px}.search-dialog{max-height:90dvh;margin-top:5dvh;padding:13px}.search-dialog-header{gap:7px}.search-results{max-height:63dvh}.search-result{grid-template-columns:minmax(0,1fr);gap:4px}.search-result-date{padding-top:0}.search-result p{grid-column:auto}}@media print{.site-header,.sidebar,.site-footer,.post-navigation,.article-toc,.search-dialog,.skip-link{display:none}.site-shell{width:100%;min-height:0}.page-layout{padding:0;display:block}.prose{font-size:12pt}.prose pre,.prose pre code{white-space:pre-wrap}}