:root{--bg: #ffffff;--ink: #111111;--muted: #666666;--soft: #f5f5f5;--line: #d8d8d8;--max: 760px;--font-sans: "PingFang SC", "Hiragino Sans", "Hiragino Sans GB", "Noto Sans CJK SC", "Noto Sans CJK JP", "Source Han Sans SC", "Source Han Sans JP", system-ui, sans-serif}*{box-sizing:border-box}html{background:var(--bg);color:var(--ink);font-family:var(--font-sans);line-height:1.8;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}body{margin:0}a{color:inherit;text-decoration-thickness:.07em;text-underline-offset:.18em}.site-header,.page-shell,.site-footer{width:min(var(--max),calc(100% - 32px));margin-inline:auto}.site-header{padding:24px 0 16px;border-bottom:1px solid var(--line)}.site-nav{display:flex;flex-wrap:wrap;gap:18px;font-size:.94rem}.site-nav a{color:var(--muted);text-decoration:none}.site-nav a:hover{color:var(--ink);text-decoration:underline}.page-shell{padding:40px 0 64px}.article{max-width:44rem}.article-header{margin-bottom:28px;padding-bottom:16px;border-bottom:1px solid var(--line)}.hero h1,.article h1{margin:0 0 12px;font-size:clamp(1.8rem,5vw,2.6rem);font-weight:500;line-height:1.25}.hero .lead,.article-subtitle{margin:0;color:var(--muted);font-size:1rem}.article-meta{display:grid;grid-template-columns:max-content 1fr;gap:4px 12px;margin-top:18px;color:var(--muted);font-size:.86rem}.article-meta dt{text-transform:uppercase}.article-meta dd{margin:0}.article-tags{display:flex;flex-wrap:wrap;gap:6px 10px}.article p{margin:1.1em 0}.article blockquote{margin:1.5em 0;padding-left:1em;border-left:3px solid var(--line);color:var(--muted)}.article code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em}.article pre{overflow-x:auto;padding:16px;border:1px solid var(--line);border-radius:0;background:var(--soft)}.notice{margin:28px 0;padding:14px 16px;border:1px solid var(--line);background:var(--soft);color:var(--ink)}.grid{display:grid;gap:0;margin-top:24px;border-top:1px solid var(--line)}.card{display:block;min-height:auto;padding:16px 0;border-bottom:1px solid var(--line);text-decoration:none}.card:hover h2{text-decoration:underline}.card h2{margin:0 0 4px;font-size:1.08rem;font-weight:600}.card small,.card p{color:var(--muted)}.card p{margin:4px 0 0}.article-list{display:grid;gap:0;margin:0;padding:0;border-top:1px solid var(--line);list-style:none}.article-list li{padding:16px 0;border-bottom:1px solid var(--line)}.article-list a{display:inline-flex;flex-direction:column;gap:4px;text-decoration:none}.article-list a:hover .article-list-title{text-decoration:underline;text-underline-offset:.18em}.article-list-title{font-size:1.06rem;font-weight:600}.article-list-subtitle{color:var(--muted);font-size:.94rem}.article-list-meta{display:flex;flex-wrap:wrap;gap:8px 12px;margin:8px 0 0;color:var(--muted);font-size:.82rem}.article-list-meta .tag-link{color:var(--muted)}.tag-link{display:inline-flex;color:var(--muted)}.tag-link:before{content:"#"}.tag-index{margin-top:42px}.tag-index h2{margin:0 0 14px;font-size:1.1rem;font-weight:600}.tag-index-list{margin:0;padding:0;border-top:1px solid var(--line);list-style:none}.tag-index-list li{border-bottom:1px solid var(--line)}.tag-index-list a{display:flex;justify-content:space-between;gap:16px;padding:10px 0 10px calc(var(--depth) * 18px);color:var(--muted);text-decoration:none}.tag-index-list a:hover{color:var(--ink);text-decoration:underline}.tag-index-list small{color:var(--muted)}.empty-list{margin-top:0;color:var(--muted)}.site-footer{padding:24px 0 36px;border-top:1px solid var(--line);color:var(--muted);font-size:.84rem}.article-vertical{max-width:none;min-height:70vh;writing-mode:vertical-rl;text-orientation:mixed;overflow-x:auto;padding:24px 0}.article-vertical .article-header{margin-bottom:0;margin-left:36px;padding-bottom:0;padding-left:20px;border-bottom:none;border-left:1px solid var(--line)}.article-vertical p{margin:0 1em}html .article[lang=zh-Hans],html .article[lang=zh-Hant],html .article[lang=ja],html .article :lang(ja),html .article[lang=en]{font-family:var(--font-sans)}@media(max-width:760px){.page-shell{padding-top:32px}.article-vertical{writing-mode:horizontal-tb;max-width:44rem}.article-vertical .article-header{margin-left:0;margin-bottom:28px;padding-left:0;padding-bottom:16px;border-left:none;border-bottom:1px solid var(--line)}}