:root{color-scheme:light dark;--page-bg:#fafaf8;--surface-bg:#fdfdfc;--surface-muted:#f1f2ef;--text-primary:#252b2d;--text-secondary:#61696b;--text-tertiary:#717a7d;--border-color:rgba(52,65,68,.13);--border-strong:rgba(52,65,68,.25);--accent-color:#416777;--accent-soft:#eaf0f2;--glass-bg:rgba(253,254,252,.84);--glass-edge:rgba(255,255,255,.92);--glass-shadow:0 8px 28px rgba(28,44,49,.06), 0 1px 4px rgba(28,44,49,.04), inset 0 1px 0 rgba(255,255,255,.9);--glass-tint:rgba(225,238,240,.28);--veil:rgba(37,47,51,.22)}body{font-family:-apple-system,BlinkMacSystemFont,segoe ui,pingfang sc,hiragino sans gb,microsoft yahei,sans-serif}.site-nav{top:12px;left:16px;width:calc(100% - 32px);height:60px;max-width:1120px;right:16px;margin-inline:auto;border:1px solid var(--glass-edge);border-radius:22px;background:var(--glass-bg);box-shadow:var(--glass-shadow);-webkit-backdrop-filter:blur(22px)saturate(125%);backdrop-filter:blur(22px)saturate(125%)}.site-nav__inner{padding-inline:22px}.nav-brand{font-size:19px;letter-spacing:-.04em}.nav-right{gap:8px}.nav-link{padding:10px 14px;min-height:44px;display:inline-flex;align-items:center;border-radius:14px}.nav-link:hover,.nav-link.active{background:var(--glass-tint)}.nav-search-button{border-color:transparent;background:0 0;padding:8px 12px}.nav-search-button:hover{background:var(--glass-tint);border-color:var(--border-color)}.nav-search-hint{border-color:var(--border-color)}.page-container{padding-top:132px}.home-intro{margin-bottom:44px;padding-bottom:28px;border-bottom:1px solid var(--border-color)}.home-intro h1{font-size:36px;font-weight:650;letter-spacing:-.045em;line-height:1.25;margin-bottom:14px}.home-intro p{max-width:38em;line-height:1.8;color:var(--text-secondary)}.home-kicker,.home-topics-title{font-size:12px;font-weight:500;letter-spacing:.1em}.home-kicker{margin-bottom:4px}.post-card{padding:26px 0 28px}.post-meta{font-size:12px;font-weight:400;font-variant-numeric:tabular-nums;margin-bottom:10px}.post-title{font-size:23px;line-height:1.45;font-weight:650;letter-spacing:-.025em;margin-bottom:10px;transition:color 160ms ease}.post-card:hover .post-title{color:var(--accent-color)}.post-summary{line-height:1.8;max-width:44em}.home-sidebar,.toc-sidebar{top:100px}.home-topic-link{gap:12px}.home-topic-count{font-variant-numeric:tabular-nums}.article-layout{padding-top:128px}.article-title{font-weight:650;letter-spacing:-.035em;line-height:1.3}.article-header{padding-bottom:26px;margin-bottom:34px}.article-context{border-top:0;padding-top:6px}.article-context__label{letter-spacing:.03em}.markdown-body{font-family:-apple-system,BlinkMacSystemFont,segoe ui,pingfang sc,hiragino sans gb,microsoft yahei,sans-serif}.markdown-body h2{font-weight:650;letter-spacing:-.025em;margin-top:48px}.markdown-body img{border-radius:10px}.toc-container,.mobile-toc{background:linear-gradient(145deg,var(--glass-tint),transparent),var(--glass-bg);border:1px solid var(--glass-edge);border-radius:18px;box-shadow:var(--glass-shadow);-webkit-backdrop-filter:blur(18px)saturate(120%);backdrop-filter:blur(18px)saturate(120%)}.toc-container{padding:18px 12px;max-height:calc(100dvh - 128px)}.toc-title{padding:0 8px 12px;margin-bottom:10px}.toc-container nav ul a{padding:8px 8px 8px 12px;border-radius:6px}.progress-bar{top:0;height:2px;z-index:10000}.list-container{padding-top:128px}.list-title{letter-spacing:-.035em;line-height:1.3}.search-overlay{padding-top:100px;background:var(--veil);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.search-panel{width:min(760px,100%);background:var(--glass-bg);border:1px solid var(--glass-edge);border-radius:26px;box-shadow:0 30px 100px rgba(16,29,35,.18),inset 0 1px 0 var(--glass-edge);-webkit-backdrop-filter:blur(32px)saturate(130%);backdrop-filter:blur(32px)saturate(130%);animation:glass-appear 180ms ease-out}.search-panel__header{padding:20px 24px 16px}.search-panel__body{padding:18px 24px 24px}.search-panel__close{width:44px;height:44px;flex-shrink:0;border-radius:50%;background:var(--glass-tint)}.search-input{background:var(--surface-bg)}.search-result,.search-section{background:0 0}.markdown-body h1,.markdown-body h2,.markdown-body h3,.markdown-body h4{scroll-margin-top:100px}@keyframes glass-appear{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@media(max-width:1024px){.article-layout{padding-top:120px}.mobile-toc{margin-bottom:30px}}@media(max-width:768px){.site-nav{top:8px;left:10px;right:10px;width:calc(100% - 20px);height:56px;border-radius:19px}.site-nav__inner{padding-inline:14px}.nav-right{gap:2px}.nav-link{padding-inline:10px;font-size:13px}.nav-search-button{padding:10px}.page-container{padding-top:104px}.home-intro{margin-bottom:24px;padding-bottom:24px}.home-intro h1{font-size:29px;margin-bottom:12px}.home-intro p{font-size:14px}.home-layout{gap:24px}.post-card{padding:22px 0 24px}.post-title{font-size:21px}.article-layout,.list-container{padding-top:104px}.article-title{font-size:30px}.search-overlay{padding:80px 12px 20px}.search-panel{border-radius:22px}.search-panel__header{padding:16px}.search-panel__body{padding:14px 16px 20px}}@media(prefers-color-scheme:dark){:root{--page-bg:#171b1d;--surface-bg:#202628;--surface-muted:#252c2f;--text-primary:#e9eded;--text-secondary:#abb6b9;--text-tertiary:#9aa8ad;--border-color:rgba(200,221,229,.13);--border-strong:rgba(200,221,229,.28);--accent-color:#a1c6d6;--accent-soft:#273941;--glass-bg:rgba(34,41,44,.9);--glass-edge:rgba(208,231,239,.17);--glass-shadow:0 10px 30px rgba(0,0,0,.16), inset 0 1px 0 rgba(221,243,250,.07);--glass-tint:rgba(162,202,215,.08);--veil:rgba(4,9,12,.48);--code-bg:#202628}}@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){.site-nav,.toc-container,.mobile-toc,.search-panel{background:var(--surface-bg)}}@media(prefers-reduced-transparency:reduce){.site-nav,.toc-container,.mobile-toc,.search-panel{background:var(--surface-bg);-webkit-backdrop-filter:none;backdrop-filter:none}.search-overlay{-webkit-backdrop-filter:none;backdrop-filter:none}}@media(prefers-reduced-motion:reduce){.search-panel{animation:none}.post-title,.nav-link,.nav-search-button{transition:none}}@media(forced-colors:active){.site-nav,.search-panel,.toc-container,.mobile-toc{border:1px solid CanvasText;box-shadow:none}}.home-feed,.topic-page{max-width:840px}.home-feed .home-intro{margin-bottom:22px}.topic-tabs{display:flex;flex-wrap:wrap;align-items:center;gap:6px 8px;margin-bottom:28px}.topic-tabs a{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:8px 12px;border-radius:12px;color:var(--text-secondary);font-size:14px;text-decoration:none}.topic-tabs a:hover{background:var(--surface-muted);color:var(--text-primary)}.topic-tabs a[aria-current]{background:var(--accent-soft);color:var(--accent-color);font-weight:600}.topic-count{font-size:11px;font-weight:400;font-variant-numeric:tabular-nums}.feed-heading{display:flex;justify-content:space-between;align-items:center;gap:16px}.feed-heading a{font-size:12px;color:var(--text-secondary);text-decoration:none;padding-block:10px}.feed-heading a span{margin-inline:6px}.pagination{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-top:32px;font-size:14px}.pagination a,.pagination span{display:inline-flex;min-width:40px;min-height:44px;align-items:center;justify-content:center;color:var(--text-secondary);text-decoration:none;border-radius:12px}.pagination a:hover{background:var(--surface-muted);color:var(--accent-color)}.pagination [aria-current]{background:var(--accent-soft);color:var(--accent-color);font-weight:600}.pagination [aria-disabled]{opacity:.4}.pagination-pages{display:flex;gap:4px}.pagination .pagination-gap{min-width:16px}.browse-links{display:flex;flex-wrap:wrap;gap:4px 24px;margin-top:28px}.browse-links a{display:inline-flex;align-items:center;min-height:44px;font-size:14px;color:var(--accent-color);text-decoration:none}.browse-links a:hover,.feed-heading a:hover{text-decoration:underline;text-underline-offset:4px}.archive-years{display:flex;flex-wrap:wrap;gap:16px;margin-block:24px 32px}.archive-years a{color:var(--accent-color);text-decoration:none;padding-block:10px;font-size:14px}.archive-years span{color:var(--text-tertiary);font-size:12px;margin-left:8px}.archive-year>h2{font-size:28px;font-weight:600;margin-bottom:28px;scroll-margin-top:100px}.archive-month{display:grid;grid-template-columns:48px minmax(0,1fr);column-gap:24px;margin-bottom:32px}.archive-month h3{padding-top:14px;font-size:14px;color:var(--text-secondary);font-weight:500}.archive-month ul{list-style:none}.archive-entry{display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;padding-block:13px;border-bottom:1px solid var(--border-color);color:var(--text-primary);font-size:15px;line-height:1.7;text-decoration:none}.archive-entry time{color:var(--text-tertiary);font-size:12px;padding-top:2px;font-variant-numeric:tabular-nums}.archive-entry:hover span{color:var(--accent-color)}.reading-page .site-nav{position:relative;inset:auto;margin:12px auto 0}.reading-page .article-layout{padding-top:52px}.reading-page .toc-sidebar{top:24px}.reading-page .toc-container{max-height:calc(100dvh - 48px)}.reading-page .markdown-body :is(h1,h2,h3,h4){scroll-margin-top:24px}@media(max-width:768px){.reading-page .site-nav{margin-top:8px}.reading-page .article-layout{padding-top:40px}.nav-link{padding-inline:8px}.topic-tabs{gap:4px;margin-bottom:20px}.topic-tabs a{padding-inline:10px;font-size:13px;gap:5px}.archive-month{grid-template-columns:1fr;gap:4px;margin-bottom:24px}.archive-month h3{padding-top:0}.archive-entry{gap:12px}.pagination{gap:8px;font-size:13px}.pagination-pages{gap:0}.pagination-pages a,.pagination-pages span{min-width:32px}}.post-card{scroll-margin-top:100px}