.reading-shell{display:grid;grid-template-columns:240px minmax(0,1fr);gap:56px;margin:24px 0 0}.reading-rail{position:sticky;top:88px;align-self:start;display:grid;gap:18px;padding:24px 0;border-top:2px solid var(--coal);border-bottom:1px solid var(--rule)}.rail-back{display:grid;gap:2px;padding-bottom:14px;border-bottom:1px solid var(--rule);color:var(--coal)}.rail-back small{font-family:var(--display);font-weight:800;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}.rail-back strong{font-family:var(--display);font-weight:900;font-size:16px;line-height:1.4;color:var(--coal);letter-spacing:0}.rail-back span{font-family:var(--sans);font-size:11.5px;color:var(--coal-2);margin-top:4px;font-weight:600}.rail-back:hover{color:var(--accent)}.rail-back:hover strong{color:var(--accent)}.rail-chapters{list-style:none;margin:0;padding:0;display:grid;gap:0}.rail-chapters li{position:relative}.rail-chapters a,.rail-chapters span[aria-current=page]{display:block;padding:10px 0;border-bottom:1px dashed var(--rule-soft);color:var(--coal-2);transition:color .2s,padding .2s}.rail-chapters a:hover{color:var(--accent);padding-left:4px}.rail-chapters .rail-title{font-family:var(--sans);font-weight:600;font-size:13px;line-height:1.55}.rail-chapters li.is-current{background:color-mix(in srgb,var(--accent) 8%,var(--paper));margin:0 -10px;padding:0 10px;border-left:4px solid var(--accent)}.rail-chapters li.is-current span[aria-current=page]{display:block;padding:10px 0;color:var(--coal);border-bottom:none}.rail-chapters li.is-current .rail-title{display:grid;grid-template-columns:8px minmax(0,1fr);align-items:start;gap:8px;font-weight:800;color:var(--coal)}.rail-chapters li.is-current .rail-title::before{content:"";width:6px;height:6px;margin-top:.68em;border-radius:50%;background:var(--accent)}.rail-toc{display:contents}.rail-toc-toggle{display:none}.rail-toc .rail-chapters{display:grid}.reading-main{min-width:0}.reading-head{padding:24px 0;border-top:2px solid var(--coal);display:grid;gap:10px}.reading-serial{margin:0;font-family:var(--display);font-weight:900;font-size:14px;letter-spacing:.04em;color:var(--accent);font-variant-numeric:tabular-nums}.reading-serial span{font-family:var(--sans);font-weight:500;font-size:11.5px;color:var(--coal-2);letter-spacing:.06em;margin-left:8px}.reading-theme{margin:0;font-family:var(--sans);font-size:12px;font-weight:600;color:var(--coal-2);letter-spacing:.04em}.reading-theme a{color:var(--coal);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--rule-soft)}.reading-theme a:hover{text-decoration-color:var(--accent)}.reading-head h1{margin:4px 0 0;font-family:var(--display);font-weight:900;font-size:clamp(28px,4vw,42px);line-height:1.3;letter-spacing:0;color:var(--coal);max-width:30ch}.reading-meta{list-style:none;margin:12px 0 0;padding:12px 0 0;border-top:1px solid var(--rule-soft);display:flex;flex-wrap:wrap;gap:8px 28px;font-family:var(--sans);font-size:12px;font-weight:600;color:var(--coal)}.reading-meta li{display:flex;align-items:baseline;gap:8px;font-variant-numeric:tabular-nums}.reading-meta span{font-family:var(--display);font-weight:800;font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent)}.reading-summary{margin:12px 0 0;padding:13px 16px;background:var(--paper-2);border-left:3px solid var(--accent)}.rs-tag{margin:0 0 4px;font-family:var(--display);font-weight:800;font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent)}.reading-summary p:last-child{margin:0;font-size:14px;line-height:1.85;color:var(--coal-2)}.article-meta{display:flex;flex-wrap:wrap;gap:.2em 1.25em;margin:0;font-family:var(--sans);font-size:12.5px;font-weight:500;color:#5c5c64}.article-meta-pub{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.prev-next-nav{display:grid;grid-template-columns:1fr 1fr;gap:1px;margin:48px 0 22px;border:1px solid var(--rule);background:var(--rule)}.pn{display:grid;gap:4px;padding:18px 22px;background:var(--paper);color:var(--coal);transition:background .2s;min-height:70px;align-content:center}.pn:hover{background:var(--paper-2)}.pn-next{text-align:right}.pn small{font-family:var(--display);font-weight:800;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}.pn strong{font-family:var(--display);font-weight:800;font-size:14.5px;line-height:1.5;color:var(--coal);letter-spacing:0}.pn.disabled{opacity:.35;background:var(--paper-2)}.article-foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:22px 0 48px;border-top:1px solid var(--rule)}.foot-back,.foot-home{font-family:var(--display);font-weight:800;font-size:13px;color:var(--coal);letter-spacing:.02em;text-decoration:underline;text-underline-offset:5px;text-decoration-color:var(--accent);transition:color .2s,text-decoration-thickness .2s}.foot-back:hover,.foot-home:hover{color:var(--accent);text-decoration-thickness:2px}.article-prose{font-family:var(--sans);font-size:15px;line-height:1.95;color:var(--coal-2);font-weight:400;font-feature-settings:'palt' 1,'kern' 1}.article-prose>p{margin:0 0 1.45em;max-width:none}.article-prose h2+p{margin-top:.15em}.article-prose h2{margin:1.35em 0 .5em;padding:10px 0 6px;border-top:1px solid var(--coal);font-family:var(--display);font-weight:900;font-size:clamp(22px,2.6vw,28px);line-height:1.4;letter-spacing:0;color:var(--coal);position:relative}.article-prose h3{margin:1.75em 0 .55em;padding:0 0 6px;border-bottom:2px solid var(--accent);background:0 0!important;border-left:none!important;font-family:var(--display);font-weight:800;font-size:clamp(17px,2vw,21px);line-height:1.45;letter-spacing:0;color:var(--coal);border-radius:0!important;display:inline-block}.article-prose h4{margin:1.45em 0 .35em;font-family:var(--display);font-weight:800;font-size:15px;color:var(--coal)}.article-prose ul,.article-prose ol{margin:0 0 1.25em;padding-left:1.4em;max-width:64ch}.article-prose ul li,.article-prose ol li{margin:.3em 0;line-height:1.85;font-size:14.5px}.article-prose ul li::marker{color:var(--accent)}.article-prose ol li::marker{color:var(--accent);font-family:var(--display);font-weight:800;font-variant-numeric:tabular-nums}.article-prose a{color:var(--coal);font-weight:600;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;text-decoration-color:var(--accent);transition:color .2s,text-decoration-thickness .2s}.article-prose a:hover{color:var(--accent);text-decoration-thickness:2px}.article-prose strong,.article-prose b{color:var(--coal);font-weight:800}.article-prose em{font-style:italic;color:var(--coal)}.article-prose blockquote{margin:1.35em 0;padding:4px 0 4px 22px;border-left:3px solid var(--accent);font-style:italic;color:var(--coal);max-width:60ch}.article-prose .diagram-figure{margin:1.35em 0 1.65em;padding:14px;border:1px solid var(--rule-soft);border-radius:8px;background:var(--paper)}.article-prose .diagram-figure img{display:block;width:100%;height:auto}.article-prose .diagram-figure figcaption{margin:10px 2px 0;color:#5c5c64;font-size:12.5px;line-height:1.65}.article-prose .highlight,.article-prose pre{max-width:100%;overflow-x:auto}.article-prose .highlight{position:relative;margin:1.2em 0 1.45em;padding:18px 18px 16px;background:var(--paper-2);border:1px solid var(--rule-soft);border-left:4px solid var(--accent)}.article-prose .highlight.is-ok{border-left-color:var(--ok)}.article-prose .highlight.is-ng{border-left-color:var(--ng)}.article-prose .highlight.is-ok,.article-prose .highlight.is-ng{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:10px;padding:14px 16px}.article-prose .highlight .example-label{display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:22px;margin:3px 0 0;padding:0 8px;border-radius:2px;background:var(--accent);color:var(--paper);font-family:var(--display);font-size:11px;font-weight:900;line-height:1;letter-spacing:.08em}.article-prose .highlight.is-ok .example-label{background:var(--ok)}.article-prose .highlight.is-ng .example-label{background:var(--ng)}.article-prose pre{min-width:0;margin:0!important;padding:0!important;background:0 0!important;color:var(--coal)!important;white-space:pre-wrap;word-break:break-word}.article-prose .highlight span{min-width:0}.article-prose .okng-table-wrap{margin:1.25em 0 1.5em;overflow-x:auto;border:1px solid var(--rule-soft);background:var(--paper)}.article-prose .okng-caption{margin:0;padding:10px 12px;border-bottom:1px solid var(--rule-soft);background:var(--paper-2);color:var(--coal);font-family:var(--display);font-size:12px;font-weight:800;line-height:1.5;letter-spacing:.02em}.article-prose .okng-table{width:100%;min-width:560px;margin:0;border-collapse:collapse;table-layout:fixed;font-family:var(--sans);font-size:13.5px}.article-prose .okng-table th,.article-prose .okng-table td{padding:12px 14px;border:0;border-right:1px solid var(--rule-soft);border-bottom:1px solid var(--rule-soft);text-align:left;vertical-align:top;line-height:1.75;overflow-wrap:break-word}.article-prose .okng-table thead th{background:var(--paper-3);color:var(--coal);font-family:var(--display);font-size:12px;font-weight:900;letter-spacing:.06em}.article-prose .okng-table thead th.is-ng{background:color-mix(in srgb,var(--ng) 13%,var(--paper));color:var(--ng)}.article-prose .okng-table thead th.is-ok{background:color-mix(in srgb,var(--ok) 13%,var(--paper));color:var(--ok)}.article-prose .okng-table tbody th{width:14%;background:var(--paper-2);color:var(--coal);font-weight:800}.article-prose .okng-table thead th:first-child{width:14%}.article-prose .okng-table thead th.is-ng,.article-prose .okng-table thead th.is-ok,.article-prose .okng-table td.is-ng,.article-prose .okng-table td.is-ok{width:43%}.article-prose .okng-table td.is-ng{color:var(--coal);background:color-mix(in srgb,var(--ng) 4%,var(--paper))}.article-prose .okng-table td.is-ok{color:var(--coal);background:color-mix(in srgb,var(--ok) 4%,var(--paper))}.article-prose .okng-table td:last-child,.article-prose .okng-table th:last-child{border-right:0}.article-prose .okng-table tbody tr:last-child th,.article-prose .okng-table tbody tr:last-child td{border-bottom:0}.article-prose .okng-table p{margin:0}.article-prose table{width:100%;margin:1.25em 0 1.55em;border-collapse:collapse;font-family:var(--sans);font-size:13.5px}.article-prose table thead{border-top:2px solid var(--coal);border-bottom:1px solid var(--coal);background:0 0}.article-prose table th{padding:10px 12px;text-align:left;font-family:var(--display);font-weight:900;font-size:12px;letter-spacing:.04em;color:var(--coal);background:var(--paper-2);border-right:1px solid var(--rule-soft)}.article-prose table th:last-child{border-right:none}.article-prose table td{padding:10px 12px;border-bottom:1px solid var(--rule-soft);border-right:1px solid var(--rule-soft);color:var(--coal-2);vertical-align:top;line-height:1.7}.article-prose table td:last-child{border-right:none}.article-prose table tbody tr:last-child td{border-bottom:2px solid var(--coal)}.article-prose .topic-tables-wrap{margin:1.3em 0 1.6em}.article-prose .topic-tables-caption{margin:0 0 10px;color:var(--coal);font-family:var(--display);font-size:13px;font-weight:900;line-height:1.5;letter-spacing:.02em}.article-prose .topic-table-grid{display:grid;grid-template-columns:1fr;gap:12px;align-items:start}.article-prose .topic-table-panel{border:1px solid var(--rule-soft);background:var(--paper)}.article-prose .topic-table-title{margin:0;padding:10px 12px;border-bottom:1px solid var(--rule-soft);font-family:var(--display);font-size:12px;font-weight:900;line-height:1.5;letter-spacing:.06em}.article-prose .topic-table-panel.is-avoid .topic-table-title{color:var(--ng);background:color-mix(in srgb,var(--ng) 7%,var(--paper))}.article-prose .topic-table-panel.is-safe .topic-table-title{color:var(--ok);background:color-mix(in srgb,var(--ok) 7%,var(--paper))}.article-prose .topic-table{display:block;width:100%;min-width:0;margin:0;font-family:var(--sans);font-size:13px}.article-prose .topic-table thead{display:none}.article-prose .topic-table tbody,.article-prose .topic-table tr,.article-prose .topic-table th,.article-prose .topic-table td{display:block}.article-prose .topic-table tr{border-bottom:1px solid var(--rule-soft);padding:12px}.article-prose .topic-table tr:last-child{border-bottom:0}.article-prose .topic-table tbody th,.article-prose .topic-table tbody td{width:auto;padding:0;border:0;text-align:left;line-height:1.65}.article-prose .topic-table tbody th{color:var(--coal);font-weight:800;font-size:13.5px}.article-prose .topic-table td{margin-top:7px;color:var(--coal-2)}.article-prose .topic-table p{margin:0}.article-prose .topic-table td::before{content:attr(data-label);display:block;margin-bottom:2px;color:var(--muted);font-family:var(--display);font-size:10.5px;font-weight:900;line-height:1.4;letter-spacing:.04em}.article-prose .compare-table-wrap{margin:1.35em 0;border:1px solid var(--coal);border-radius:0}.article-prose .compare-table thead{background:var(--coal)}.article-prose .compare-table th{border-right-color:rgba(247,244,236,.2)}.article-prose .compare-table th.t-ok{background:var(--ok);color:var(--paper)}.article-prose .compare-table th.t-ng{background:var(--ng);color:var(--paper)}.article-prose .compare-table td{background:var(--paper);border-bottom-color:var(--rule);border-right-color:var(--rule)}.article-prose .compare-table td:first-child{background:var(--paper-2)}body.page-article .reading-shell{margin-top:16px}body.page-article .reading-head{padding:18px 0 20px}.prev-next-nav.is-single{grid-template-columns:minmax(0,1fr)}.prev-next-nav.is-single .pn{min-height:78px}.article-prose .prose-cards{gap:12px;border-top:0;margin:1.35em 0 1.7em}.article-prose .prose-card{background:#fff;border:1px solid var(--rule-soft);border-left:5px solid color-mix(in srgb,var(--accent) 72%,var(--rule-soft));border-radius:8px;margin:0 0 14px;padding:16px 18px;box-shadow:0 10px 26px rgba(24,24,27,6%)}.article-prose .prose-card:hover{background:var(--paper-2);border-left-color:var(--accent);padding-left:22px}.pc-label{display:inline-flex;align-items:center;justify-self:start;padding:2px 8px;background:var(--accent-tint);color:var(--accent);border-radius:999px;font-family:var(--display);font-size:10.5px;font-weight:800;letter-spacing:.12em}.article-prose .pc-title{font-size:16px}.article-prose .pc-arrow{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--accent);color:var(--paper)}.auto-related{margin:34px 0 26px}.auto-related+.auto-related{margin-top:24px}.auto-related h2{margin:0 0 13px;padding-bottom:9px;border-bottom:1px solid var(--rule);color:var(--coal);font-family:var(--display);font-size:18px;font-weight:900;line-height:1.45;letter-spacing:0}.auto-related .prose-cards{display:grid;gap:12px;margin:0;border-top:0}.auto-related .prose-card{background:#fff;border:1px solid var(--rule-soft);border-left:5px solid color-mix(in srgb,var(--accent) 72%,var(--rule-soft));border-radius:8px;margin:0;padding:16px 18px;box-shadow:0 10px 26px rgba(24,24,27,6%)}.auto-related .prose-card:hover{background:var(--paper-2);border-left-color:var(--accent);padding-left:22px}.auto-related .pc-title{font-size:16px}.auto-related .pc-arrow{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--accent);color:var(--paper)}@media(max-width:980px){.reading-shell{grid-template-columns:1fr;gap:0}.reading-rail{position:static;order:2;padding:12px 0}.reading-main{order:1}}