:root{color-scheme:light;--page:#f1f2f8;--surface:#fff;--surface-hover:#faf9ff;--header:#ffffffed;--text:#343644;--text-secondary:#535665;--muted:#656979;--accent:#9390d0;--accent-text:#625e9b;--accent-soft:#f0effb;--accent-hover:#e5e2f6;--profile-tint:#edf3fa;--avatar:#e7e5f7;--subtle:#f6f6fa;--line:#e9e9f0;--shadow:#333b5805;--success:#6b9d84;--code-bg:#292b3a;--code-text:#e2e2f0}:root[data-theme=dark]{color-scheme:dark;--page:#171821;--surface:#23242f;--surface-hover:#2b2b39;--header:#23242fee;--text:#e0dfec;--text-secondary:#b8b8ca;--muted:#aaa7bf;--accent:#a6a0db;--accent-text:#bcb5ee;--accent-soft:#333047;--accent-hover:#403b58;--profile-tint:#293344;--avatar:#3f395c;--subtle:#2b2b38;--line:#383745;--shadow:#00000012;--success:#8dbca2;--code-bg:#191b27;--code-text:#dad9ea}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--page);color:var(--text);font:14px/1.8 -apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased}button,input{font:inherit}a,button{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}button{border:0}a,button{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}a,button,input{transition:background .18s,color .18s,box-shadow .18s}::selection{background:var(--accent-soft);color:var(--accent-text)}h1,h2,h3,p{margin:0}svg{flex-shrink:0;vertical-align:middle}.site-container{position:relative;max-width:1180px;margin:auto;padding:20px 26px 0}.site-backdrop{position:absolute;top:0;left:0;right:0;height:330px;overflow:hidden;pointer-events:none}.banner-photo{height:100%;background:url(/images/mountain-lake.jpg) center 46%/cover;filter:saturate(.72);transform:scale(1.01)}.banner-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(26,35,58,.08),rgba(67,79,105,.06) 50%,var(--page) 100%)}[data-theme=dark] .banner-photo{filter:saturate(.6) brightness(.57)}.site-header{height:66px;padding:0 23px;justify-content:space-between;gap:20px;border-radius:15px;background:var(--header);box-shadow:0 4px 28px #28334d08;position:relative;z-index:10;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.brand,.site-header{display:flex;align-items:center}.brand{gap:10px;font-size:21px;font-weight:750;letter-spacing:-.6px;white-space:nowrap;color:var(--accent-text)}.brand-mark{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:10px;background:var(--accent-soft)}.brand-dot{color:var(--accent);margin-left:-8px}.main-nav{display:flex;align-items:center;gap:7px}.main-nav>a{padding:7px 14px;border-radius:9px;color:var(--muted);font-size:13px;font-weight:550;white-space:nowrap}.main-nav>a.active,.main-nav>a:hover{color:var(--accent-text);background:var(--accent-soft)}.main-nav>a.knowledge-nav{display:flex;gap:6px;align-items:center}.header-tools{display:flex;align-items:center;gap:5px}.icon-button{width:35px;height:35px;display:inline-flex;align-items:center;justify-content:center;background:transparent;color:var(--muted);border-radius:9px;flex-shrink:0}.icon-button:hover{background:var(--accent-soft);color:var(--accent-text)}.mobile-menu{display:none}.banner-spacer{height:152px}.page-grid{display:grid;grid-template-columns:246px minmax(0,1fr);gap:23px;align-items:stretch}main{min-width:0;min-height:680px}.sidebar{contain:size;min-height:0;display:flex;flex-direction:column;gap:17px}.panel{background:var(--surface);border-radius:15px;box-shadow:0 3px 14px var(--shadow)}.profile{flex-shrink:0;text-align:center;overflow:hidden;padding-bottom:22px}.profile-top{height:74px;background:linear-gradient(125deg,var(--accent-soft),var(--profile-tint))}.avatar{width:88px;height:88px;border-radius:50%;margin:-43px auto 7px;display:flex;align-items:center;justify-content:center;position:relative;background:var(--avatar);border:6px solid var(--surface);color:var(--accent-text);font:italic 48px/1 Georgia,Times New Roman,serif;letter-spacing:-4px;padding-right:4px}.avatar>span{color:var(--accent);font-size:44px}.profile h2{font-size:21px;font-weight:700;letter-spacing:.3px}.profile-divider{width:21px;height:3px;border-radius:4px;background:var(--accent);margin:12px auto}.profile p{font-size:13px;line-height:1.9;color:var(--muted)}.profile-rss{display:inline-flex;align-items:center;gap:7px;margin-top:17px;padding:5px 13px;border-radius:8px;color:var(--accent-text);background:var(--accent-soft);font-size:12px}.profile-rss:hover{background:var(--accent-hover)}.sidebar-section{padding:19px 20px 20px}.sidebar-section h2{font-size:14px;font-weight:650;display:flex;align-items:center;gap:9px;margin-bottom:13px}.sidebar-section h2 svg{color:var(--accent)}.category-links{display:flex;flex-direction:column;gap:5px}.category-links>a{display:flex;justify-content:space-between;align-items:center;padding:5px 8px;border-radius:7px;font-size:13px;color:var(--muted)}.category-links>a:hover{background:var(--accent-soft);color:var(--accent-text)}.category-count{min-width:24px;min-height:23px;display:flex;align-items:center;justify-content:center;background:var(--subtle);border-radius:6px;font-size:11px;color:var(--accent-text)}.tag-cloud{display:flex;gap:7px;flex-wrap:wrap;align-content:start;overflow-y:auto;min-height:0;scrollbar-width:thin;scrollbar-color:var(--line) transparent;scroll-padding-block:4px;padding:3px;margin:-3px}.tag-cloud>a{background:var(--accent-soft);color:var(--accent-text);border-radius:6px;padding:2px 9px;font-size:12px}.tag-cloud>a:hover{background:var(--accent-hover)}.section-heading{display:flex;align-items:center;gap:12px;padding:26px 5px 13px}.section-heading h1,.section-heading h2{font-size:14px;font-weight:650}.section-heading.filter-heading{padding:14px 22px;margin-bottom:16px}.section-heading>span{font-size:10px;color:var(--muted)}.clear-filter{display:inline-flex;gap:4px;align-items:center;margin-left:auto;color:var(--accent-text);font-size:11px}.post-list{display:flex;flex-direction:column;gap:17px}.post-card{position:relative;overflow:hidden}.post-card:before{content:"";position:absolute;left:0;top:29px;width:4px;height:27px;border-radius:0 4px 4px 0;background:var(--accent)}.post-card-content{padding:23px 28px 17px}.post-card h2{font-size:23px;line-height:1.5;font-weight:700;letter-spacing:-.3px}.post-card h2 a:hover{color:var(--accent-text)}.post-meta{display:flex;gap:14px;flex-wrap:wrap;align-items:center;color:var(--muted);font-size:12px;margin-top:12px}.post-meta>a,.post-meta>span{display:inline-flex;align-items:center;gap:5px}.post-meta svg{color:var(--accent);opacity:.85}.post-meta>a:hover{color:var(--accent-text)}.post-card-content>p{font-size:14px;line-height:1.9;color:var(--muted);margin-top:16px}.post-bottom{border-top:1px solid var(--line);margin-top:21px;padding-top:12px;display:flex;align-items:center;gap:12px;justify-content:space-between}.post-tags{display:flex;gap:10px;flex-wrap:wrap;color:var(--accent-text);font-size:12px}.post-tags a:hover{text-decoration:underline;text-underline-offset:3px}.read-more{display:inline-flex;gap:6px;align-items:center;flex-shrink:0;font-size:12px;color:var(--accent-text);border-radius:8px;padding:5px 6px 5px 9px}.read-more:hover{background:var(--accent-soft)}.site-footer{text-align:center;padding:39px 16px 25px;color:var(--muted);font-size:12px}.site-footer>div:first-child{display:flex;align-items:center;justify-content:center;gap:9px}.site-footer>a{display:inline-block;margin-top:5px}.site-footer a:hover{color:var(--accent-text)}.footer-note{display:flex;align-items:center;justify-content:center;gap:15px;font-size:11px;margin-top:8px;opacity:.8}.content-panel{padding:33px 35px;min-height:460px}.content-panel>h1{font-size:29px;line-height:1.6;font-weight:700;letter-spacing:-.6px}.page-description{font-size:13px;line-height:1.9;color:var(--muted);margin-top:9px;margin-bottom:34px}.archive-year{margin-top:30px}.archive-year>h2{display:flex;align-items:center;gap:14px;font-size:25px;color:var(--accent-text);font-weight:650}.archive-year>h2>span{font-size:10px;font-weight:400;color:var(--muted)}.archive-list{margin-top:14px}.archive-list>a{display:flex;align-items:center;gap:20px;padding:20px 0;border-top:1px solid var(--line)}.archive-list>a>time{font-size:11px;color:var(--muted);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;flex-shrink:0}.archive-list>a>span{flex:1 1}.archive-list strong{font-size:14px;font-weight:550;display:block}.archive-list small{font-size:10px;color:var(--muted);margin-top:4px;display:block}.archive-list>a>svg{color:var(--accent)}.archive-list>a:hover strong{color:var(--accent-text)}.project-list{margin-top:30px}.project-entry{display:flex;align-items:flex-start;gap:20px;background:var(--subtle);border-radius:12px;padding:25px 22px}.project-icon{background:var(--accent-soft);color:var(--accent-text);padding:15px;border-radius:15px}.project-entry>div:nth-child(2){flex:1 1;min-width:0}.project-title{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.project-title h2{font-size:20px;font-weight:650}.project-status{color:var(--success);font-size:10px;display:flex;align-items:center;gap:5px;white-space:nowrap}.project-status:before{content:"";height:5px;width:5px;border-radius:50%;background:currentColor}.project-entry p{font-size:12px;line-height:1.9;color:var(--muted);margin:9px 0 13px}.project-entry>svg{color:var(--accent);margin-top:5px}.project-entry:hover{background:var(--accent-soft)}.back-link{display:inline-flex;align-items:center;gap:7px;color:var(--muted);font-size:11px;margin-bottom:18px}.back-link:hover{color:var(--accent-text)}.article-panel>h1{font-size:30px}.article-panel>.post-meta{padding-bottom:24px;border-bottom:1px solid var(--line);margin-top:16px;margin-bottom:29px}.prose{font-size:16px;line-height:2;color:var(--text-secondary);overflow-wrap:anywhere}.prose>p{margin:18px 0}.prose h2{font-size:22px;line-height:1.6;font-weight:650;color:var(--text);margin:33px 0 15px;padding-left:14px;border-left:3px solid var(--accent)}.prose h3{font-size:18px;font-weight:600;color:var(--text);margin:25px 0 13px}.prose ol,.prose ul{padding-left:23px;margin:17px 0}.prose li{margin:7px 0;padding-left:4px}.prose li::marker{color:var(--accent)}.prose strong{color:var(--text);font-weight:650}.prose a{color:var(--accent-text);text-decoration:underline;text-decoration-color:var(--line);text-underline-offset:4px}.prose a:hover{text-decoration-color:var(--accent)}.prose code{font:12px/1.8 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--accent-soft);color:var(--accent-text);border-radius:5px;padding:2px 5px}.prose pre{background:var(--code-bg);border-radius:11px;padding:21px 23px;overflow-x:auto;line-height:1.85;margin:22px 0;tab-size:2}.prose pre code{padding:0;background:none;color:var(--code-text);font-size:13px;white-space:pre}.prose blockquote{padding:3px 19px;margin:20px 0;border-left:3px solid var(--accent);background:var(--subtle);color:var(--muted)}.prose blockquote p{margin:12px 0}.table-wrap{overflow-x:auto;margin:20px 0}.prose table{border-collapse:collapse;width:100%;font-size:12px}.prose td,.prose th{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}.prose th{background:var(--subtle);color:var(--text)}.text-link{display:inline-flex;align-items:center;gap:5px;color:var(--accent-text);font-size:12px}.article-end{border-top:1px dashed var(--line);margin-top:35px;padding-top:23px;display:flex;gap:15px;align-items:center;justify-content:space-between;flex-wrap:wrap}.not-found{text-align:center;padding-top:65px}.not-found>span{font-size:75px;font-weight:750;color:var(--accent);line-height:1.4}.not-found>h1{font-size:24px;margin-top:16px}.not-found>p{font-size:13px;color:var(--muted);margin:13px 0 25px}.primary-link{display:inline-block;padding:8px 20px;background:var(--accent-soft);color:var(--accent-text);border-radius:9px;font-size:13px}.empty-state{padding:40px 24px;font-size:13px;color:var(--muted);text-align:center}.empty-state>a{display:block;color:var(--accent-text);margin-top:8px}.skip-link{position:absolute;z-index:1000;top:-60px;left:20px;padding:10px 20px;border-radius:8px;background:var(--surface);color:var(--accent-text)}.skip-link:focus{top:10px}.search-dialog{padding:0;border:0;border-radius:16px;width:min(570px,calc(100% - 32px));max-height:80vh;background:var(--surface);color:var(--text);box-shadow:0 22px 100px #0003;margin:14vh auto auto;overflow:hidden}.search-dialog::backdrop{background:#1e223b55;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.search-dialog-head{display:flex;justify-content:space-between;align-items:center;padding:18px 22px 8px;gap:20px}.search-dialog-head h2{font-size:17px;font-weight:600}.search-input{display:flex;align-items:center;gap:10px;background:var(--subtle);margin:7px 23px 15px;border-radius:9px;padding:12px 14px;color:var(--accent)}.search-input input{width:100%;min-width:0;border:0;background:none;color:var(--text);font-size:14px}.search-results{padding:0 14px;max-height:42vh;overflow-y:auto}.search-results>a{display:flex;align-items:center;justify-content:space-between;gap:18px;border-radius:9px;padding:13px 12px}.search-results>a:hover{background:var(--accent-soft)}.search-results strong{font-size:14px;font-weight:550;display:block}.search-results small{font-size:12px;color:var(--muted);display:block;line-height:1.7;margin-top:4px}.search-results svg{color:var(--accent)}.search-hint{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:12px;border-top:1px solid var(--line);padding:12px 24px;margin-top:12px}@media (min-width:1440px){.site-backdrop{height:370px}.banner-spacer{height:172px}}@media (max-width:1000px){.site-container{padding-left:20px;padding-right:20px}.page-grid{grid-template-columns:218px minmax(0,1fr);gap:18px}.site-header{padding:0 17px;gap:12px}.main-nav{gap:1px}.main-nav>a{padding:7px 10px;font-size:12px}.brand{font-size:19px;gap:8px}.post-card-content{padding:23px 23px 16px}.post-card h2{font-size:21px}.content-panel{padding:28px}.content-panel>h1{font-size:25px}.project-entry{padding:21px 18px;gap:15px}.project-icon{padding:11px}}@media (max-width:760px){.site-container{padding:14px 16px 0}.site-header{height:62px;border-radius:13px;padding:0 14px}.brand{font-size:18px}.brand-mark{width:30px;height:30px}.main-nav{display:none;position:absolute;top:73px;left:0;right:0;background:var(--surface);box-shadow:0 9px 26px var(--shadow);border-radius:12px;padding:11px;flex-wrap:wrap;gap:6px}.main-nav.is-open{display:flex}.main-nav>a{padding:9px 15px;font-size:13px}.mobile-menu{display:inline-flex}.header-tools{gap:2px}.banner-spacer{height:106px}.site-backdrop{height:270px}.page-grid{grid-template-columns:1fr;gap:17px}.sidebar{display:block}.sidebar .article-filters{margin-top:12px}.profile{display:grid;grid-template-columns:60px minmax(0,1fr) auto;column-gap:14px;align-items:center;text-align:left;padding:16px 20px}.profile-divider,.profile-top{display:none}.avatar{grid-column:1;grid-row:1/3;width:58px;height:58px;border:0;font-size:35px;margin:0;letter-spacing:-3px}.avatar>span{font-size:31px}.profile h2{grid-column:2;grid-row:1;font-size:18px;align-self:end}.profile p{grid-column:2;grid-row:2;font-size:13px;align-self:start}.profile-rss{grid-column:3;grid-row:1/3;margin:0;font-size:12px;padding:6px 9px;white-space:nowrap}.profile-rss svg{width:13px;height:13px}.section-heading{padding-top:22px}.post-card-content{padding:22px 24px 16px}.post-card h2{font-size:22px}.post-meta{font-size:12px;gap:13px}.post-card-content>p{font-size:14px}.post-tags,.read-more{font-size:12px}.post-card:before{top:29px}.site-footer{padding-top:32px}.content-panel{padding:29px 27px;min-height:380px}.prose{font-size:16px}.content-panel>h1{font-size:27px}.prose h2{font-size:22px}.page-description{font-size:13px}.project-entry{gap:16px;padding:21px 18px}.project-title h2{font-size:20px}.article-panel>.post-meta{font-size:12px}.search-input input{font-size:16px}}@media (max-width:420px){.site-container{padding:12px 12px 0}.site-header{padding:0 11px;gap:5px}.brand{font-size:17px;gap:7px}.brand-mark{width:28px;height:28px}.brand-mark svg{width:17px;height:17px}.icon-button{width:32px;height:36px}.header-tools{gap:0}.banner-spacer{height:84px}.profile{padding:15px 17px;grid-template-columns:49px minmax(0,1fr) auto;gap:0 11px}.avatar{width:49px;height:49px;font-size:30px}.avatar>span{font-size:29px}.profile h2{font-size:17px}.profile p{font-size:13px}.profile-rss{font-size:12px;padding:5px 7px;gap:4px}.profile-rss svg{width:12px;height:12px}.post-card-content{padding:21px 20px 14px}.post-card h2{font-size:21px}.post-meta{gap:10px;font-size:12px}.post-meta svg{width:12px;height:12px}.post-card-content>p{font-size:14px}.post-bottom{gap:7px;flex-wrap:wrap}.post-tags{gap:8px;font-size:12px}.read-more{font-size:12px;margin-left:auto}.content-panel{padding:26px 21px}.content-panel>h1{font-size:24px}.prose{font-size:16px}.prose pre{padding:17px}.archive-list>a{gap:13px}.archive-list strong{font-size:13px}.project-entry{padding:20px 15px;gap:12px;flex-wrap:wrap}.project-icon{padding:9px;border-radius:12px}.project-icon svg{height:24px;width:24px}.project-entry>div:nth-child(2){flex-basis:calc(100% - 60px)}.project-entry>svg{margin-left:auto}.project-title h2{font-size:19px}.article-panel>.post-meta{gap:10px}.search-hint{font-size:12px;padding:12px 20px}.search-dialog-head{padding-left:20px;padding-right:14px}.search-input{margin-left:20px;margin-right:20px}.site-footer{font-size:12px}.footer-note{font-size:11px;gap:10px}}@media (pointer:coarse){.icon-button{height:44px;min-width:38px}.main-nav>a{min-height:44px}.profile-rss,.read-more{min-height:36px}.category-links>a{min-height:40px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:after,:before{transition:none!important;animation:none!important}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.prose img{max-width:100%;height:auto;border-radius:8px}@media (max-width:420px){.brand{font-size:15px}.brand-mark{display:none}.header-tools{gap:0}.site-header{gap:4px}}.site-preferences{display:flex;align-items:center;gap:5px}.article-filters summary,.menu-preferences,.theme-label{display:none}.article-filters{position:relative;flex:1 1;min-height:0;overflow:hidden}.article-filter-content{position:absolute;inset:0;display:flex;flex-direction:column}.article-filter-content>.sidebar-section{flex-shrink:0}.article-filter-content>.sidebar-tags{flex:1 1;min-height:0;display:flex;flex-direction:column}.sidebar-tags .tag-cloud{flex:1 1}.article-filter-content .sidebar-section+.sidebar-section{border-top:1px solid var(--line)}.article-filters summary>svg:last-child{margin-left:auto;transition:transform .18s}.article-filters[open] summary>svg:last-child{transform:rotate(180deg)}@media (max-width:760px){main{min-height:0}.sidebar{contain:none}.header-preferences{display:none}.menu-preferences{display:flex;flex-basis:100%;flex-wrap:wrap;justify-content:space-between;border-top:1px solid var(--line);padding:12px 5px 3px;margin-top:3px}.menu-preferences .menu-preferences .theme-label{display:inline}.header-tools>.icon-button{min-height:44px;min-width:44px}.article-filters summary{display:flex;align-items:center;gap:9px;padding:12px 18px;min-height:44px;font-size:13px;cursor:pointer;list-style:none}.article-filters summary::-webkit-details-marker{display:none}.article-filters[open] summary{border-bottom:1px solid var(--line)}.article-filter-content{position:static;display:grid;grid-template-columns:1fr 1fr}.sidebar-tags .tag-cloud{flex:initial;max-height:18rem}.article-filter-content .sidebar-section{padding:16px}.article-filter-content .sidebar-section+.sidebar-section{border-top:0;border-left:1px solid var(--line)}}@media (max-width:420px){.article-filter-content{grid-template-columns:1fr}.article-filter-content .sidebar-section+.sidebar-section{border-left:0;border-top:1px solid var(--line)}.brand{font-size:18px}}.preference-trigger{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:36px;padding:7px 10px;border-radius:8px;background:transparent;color:var(--text-secondary);font-size:13px;white-space:nowrap}.language-trigger{background:var(--subtle)}.preference-trigger:hover,.preference-trigger[data-state=open]{background:var(--accent-soft);color:var(--accent-text)}.preference-chevron{color:var(--muted);transition:transform .15s}.preference-trigger[data-state=open] .preference-chevron{transform:rotate(180deg)}.preference-menu{z-index:100;min-width:180px;max-width:calc(100vw - 24px);max-height:var(--radix-dropdown-menu-content-available-height);overflow-y:auto;padding:6px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--text);box-shadow:0 12px 32px color-mix(in srgb,var(--text) 12%,transparent);transform-origin:var(--radix-dropdown-menu-content-transform-origin)}.preference-item{display:flex;align-items:center;gap:10px;min-height:40px;padding:8px 10px;border-radius:7px;font-size:13px;line-height:1.5;cursor:pointer;-webkit-user-select:none;user-select:none}.preference-item[data-highlighted]{background:var(--accent-soft);color:var(--accent-text)}.preference-item[data-state=checked]{color:var(--accent-text);font-weight:500}.preference-check{display:flex;align-items:center;justify-content:center;width:18px;margin-left:auto;padding-left:4px;flex-shrink:0}@media (max-width:760px){.menu-preferences .preference-trigger{min-height:44px;padding:9px 10px;font-size:14px}.menu-preferences .theme-trigger{gap:8px}}@media (pointer:coarse){.preference-item,.preference-trigger{min-height:44px}}.pagination{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:20px;padding:14px 20px;font-size:13px;color:var(--muted)}.pagination a{display:inline-flex;align-items:center;gap:4px;color:var(--accent-text)}.source-language{margin:20px 0;padding:10px 14px;border-left:3px solid var(--accent);background:var(--accent-soft);color:var(--muted);font-size:13px}