:root{color-scheme:light;--feed-bg:#f5f6f7;--feed-surface:#fff;--feed-text:#24282f;--feed-muted:#626a76;--feed-border:#e4e7eb;--feed-accent:#2563b8;--feed-accent-soft:#edf3fc;color:var(--feed-text);background:var(--feed-bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans JP,sans-serif;line-height:1.65}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}a:hover{color:var(--feed-accent)}button,input{font:inherit}button{cursor:pointer}img,svg{max-width:100%}img{object-fit:cover}h1,h2,h3,p{margin:0}button,a,input{-webkit-tap-highlight-color:transparent}[hidden]{display:none!important}:focus-visible{outline:3px solid var(--feed-accent);outline-offset:3px}section[id],main[id]{scroll-margin-top:96px}.visually-hidden{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:100;background:var(--feed-surface);padding:10px 16px;position:fixed;top:8px;left:12px;transform:translateY(-160%)}.skip-link:focus{transform:translateY(0)}.feed-header{z-index:20;background:var(--feed-surface);border-bottom:1px solid var(--feed-border);position:sticky;top:0}.feed-header__inner{align-items:center;gap:32px;max-width:1280px;min-height:72px;margin:0 auto;padding:12px 24px;display:flex}.feed-brand{min-height:44px;color:var(--feed-accent);letter-spacing:-.04em;flex-shrink:0;align-items:center;gap:10px;font-size:23px;font-weight:800;display:inline-flex}.feed-brand img{border-radius:6px}.feed-search{background:var(--feed-bg);border:1px solid var(--feed-border);border-radius:6px;flex:1;align-items:center;gap:10px;min-width:0;max-width:560px;margin-left:12px;padding:0 12px;display:flex}.feed-search svg{fill:none;stroke:var(--feed-muted);stroke-width:1.8px;flex:0 0 20px}.feed-search input{width:100%;min-width:0;min-height:44px;color:var(--feed-text);background:0 0;border:0;font-size:14px}.feed-search input::placeholder{color:var(--feed-muted)}.primary-link,.quiet-button,.dialog-close{border:1px solid var(--feed-border);min-height:44px;color:var(--feed-muted);text-align:center;background:0 0;border-radius:6px;justify-content:center;align-items:center;padding:8px 14px;font-size:13px;display:inline-flex}.primary-link{color:#fff;background:var(--feed-accent);border-color:var(--feed-accent);font-weight:700}.primary-link:hover{color:#fff;filter:brightness(.92)}.quiet-button:hover,.dialog-close:hover{background:var(--feed-accent-soft);color:var(--feed-accent)}.feed-layout{grid-template-columns:184px minmax(0,1fr) 300px;align-items:start;gap:24px;max-width:1280px;margin:0 auto;padding:28px 24px 48px;display:grid}.feed-navigation{min-width:0;position:sticky;top:100px}.feed-menu,.feed-categories{gap:4px;display:grid}.feed-menu a,.feed-categories a{border-radius:6px;align-items:center;gap:12px;min-height:44px;padding:10px 16px;font-size:14px;font-weight:600;display:flex}.feed-menu a:hover,.feed-categories a:hover{background:#e9edf3}.rail-link[aria-current=location]{color:var(--feed-accent);background:var(--feed-accent-soft);box-shadow:inset 3px 0 var(--feed-accent)}.feed-categories{border-top:1px solid var(--feed-border);margin-top:28px;padding-top:22px}.feed-nav-label{color:var(--feed-muted);margin:0 16px 8px;font-size:12px}.feed-categories a{font-size:13px;font-weight:500}.feed-categories a span{color:var(--feed-muted);font-size:17px}.feed-nav-caption{color:var(--feed-muted);margin:32px 16px 0;font-size:11px}.feed-main{min-width:0}.feed-tabs{border-bottom:1px solid var(--feed-border);gap:24px;margin-bottom:16px;display:flex}.feed-tabs a{min-height:44px;color:var(--feed-muted);align-items:center;padding:0 2px 12px;font-size:14px;font-weight:600;display:flex}.feed-tabs .rail-link[aria-current=location]{color:var(--feed-accent);border-bottom:3px solid var(--feed-accent);box-shadow:none;background:0 0}.feed-panel{border:1px solid var(--feed-border);background:var(--feed-surface);border-radius:8px;overflow:hidden}.feed-panel+.feed-panel{margin-top:24px}.feed-section-heading{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;padding:22px 24px;display:flex}.feed-section-heading h1,.feed-section-heading h2{font-size:20px;font-weight:750}.feed-section-heading p{color:var(--feed-muted);margin-top:3px;font-size:12px}.feed-section-heading>a{min-height:44px;color:var(--feed-accent);align-items:center;font-size:12px;display:inline-flex}.feed-count{color:var(--feed-muted);font-size:12px}.feed-entry{border-top:1px solid var(--feed-border);overflow-wrap:anywhere;padding:22px 24px}.feed-entry h2,.feed-entry h3{font-size:18px;font-weight:700;line-height:1.65}.feed-entry h2 a:hover,.feed-entry h3 a:hover{text-underline-offset:3px;text-decoration:underline}.feed-entry__meta{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:8px;font-size:12px;display:flex}.feed-entry__meta img{border-radius:50%}.feed-entry__meta time{color:var(--feed-muted)}.feed-entry__body--cover{grid-template-columns:minmax(0,1fr) 104px;align-items:start;gap:20px;display:grid}.feed-entry__description{color:var(--feed-muted);margin-top:6px;font-size:13px;line-height:1.85}.feed-entry__body .feed-tag{margin-top:10px}.feed-cover{margin-top:5px;display:block}.feed-cover img{border-radius:6px;width:104px;height:76px;display:block}.feed-tag{color:#525b68;background:#f0f2f5;border-radius:4px;align-items:center;max-width:100%;min-height:28px;padding:3px 8px;font-size:11px;display:inline-flex}a.feed-tag{min-height:44px}.feed-tags{flex-wrap:wrap;gap:6px;margin:0;padding:0;list-style:none;display:flex}.feed-entry__footer{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin-top:14px;display:flex}.feed-project-status{color:var(--feed-accent);letter-spacing:.08em;margin-bottom:6px;font-size:10px;font-weight:700}.feed-more{border-top:1px solid var(--feed-border);min-height:56px;color:var(--feed-accent);justify-content:center;align-items:center;gap:12px;padding:12px;font-size:13px;display:flex}.feed-more:hover{background:var(--feed-accent-soft)}.feed-search-status,.feed-empty{color:var(--feed-muted);padding:20px 24px;font-size:14px}.feed-search-status{padding:12px 0}.feed-sidebar{gap:20px;min-width:0;display:grid}.feed-side-card,.profile-section{background:var(--feed-surface);border:1px solid var(--feed-border);overflow-wrap:anywhere;border-radius:8px;padding:22px}.feed-side-card h2{margin-bottom:16px;font-size:16px}.feed-side-card h3{margin-bottom:8px;font-size:15px}.feed-side-card>p:not(.feed-project-status){color:var(--feed-muted);font-size:13px}.feed-side-link{min-height:44px;color:var(--feed-accent);align-items:center;margin-top:12px;font-size:12px;display:inline-flex}.profile-id{align-items:center;gap:12px;margin-bottom:16px;display:flex}.profile-id img{border-radius:50%;width:48px;height:48px}.profile-id h2{font-size:18px}.eyebrow{color:var(--feed-muted);letter-spacing:.06em;font-size:10px}.profile-intro{color:var(--feed-muted);font-size:13px;line-height:1.9}.profile-facts{border-top:1px solid var(--feed-border);gap:10px;margin:18px 0 0;padding-top:16px;display:grid}.profile-facts div{gap:2px;display:grid}.profile-facts dt{color:var(--feed-muted);font-size:10px}.profile-facts dd{margin:0;font-size:12px}.feed-activity{margin:0;padding:0;list-style:none}.feed-activity li+li{border-top:1px solid var(--feed-border);margin-top:10px;padding-top:14px}.feed-activity p{color:var(--feed-muted);flex-wrap:wrap;gap:8px;font-size:10px;display:flex}.feed-activity a{align-items:center;min-height:44px;font-size:13px;font-weight:600;display:flex}.feed-footer{border-top:1px solid var(--feed-border);color:var(--feed-muted);flex-wrap:wrap;justify-content:center;align-items:center;gap:16px;padding:24px;font-size:12px;display:flex}.feed-footer a{align-items:center;min-height:44px;display:inline-flex}dialog{border:1px solid var(--feed-border);width:min(620px,100% - 32px);max-height:calc(100dvh - 32px);color:var(--feed-text);background:var(--feed-surface);border-radius:12px;padding:0;overflow-y:auto}dialog::backdrop{background:#181e2880}.dialog-shell{padding:28px}.dialog-shell header{justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px;display:flex}.dialog-shell h2{margin-bottom:12px;font-size:23px}.dialog-shell>p{font-size:14px}.dialog-shell dl{gap:14px;margin:24px 0;display:grid}.dialog-shell dt{color:var(--feed-muted);font-size:12px}.dialog-shell dd{overflow-wrap:anywhere;margin:4px 0 0;font-size:14px}.dialog-actions{flex-wrap:wrap;align-items:center;gap:16px;display:flex}.quiet-link{min-height:44px;color:var(--feed-accent);align-items:center;font-size:14px;display:inline-flex}@media (width<=1120px){.feed-layout{grid-template-columns:164px minmax(0,1fr);gap:20px}.feed-sidebar{grid-column:2;grid-template-columns:repeat(2,minmax(0,1fr))}.feed-sidebar>:last-child{grid-column:1/-1}.feed-header__inner{gap:20px}}@media (width<=760px){.feed-header__inner{flex-wrap:wrap;gap:10px 12px;min-height:64px;padding:10px 16px}.feed-brand{font-size:20px}.feed-brand img{width:28px;height:28px}.feed-search{flex-basis:100%;max-width:none;margin-left:0}.feed-search input{font-size:16px}.feed-layout{flex-direction:column;gap:16px;padding:0 12px 28px;display:flex}.feed-navigation{width:100%;position:static}.feed-menu{flex-wrap:wrap;gap:4px;padding:10px 0 0;display:flex}.feed-menu a{padding:8px 12px;font-size:12px}.feed-menu a:nth-child(n+3){display:none}.rail-link[aria-current=location]{box-shadow:inset 0 -3px var(--feed-accent)}.feed-categories{border:0;flex-wrap:wrap;gap:0 8px;margin:6px 0 0;padding:0;display:flex}.feed-categories a{gap:4px;padding:4px 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16px;margin-top:16px;font-size:12px;display:flex}.feed-article-cover{object-fit:cover;border-radius:8px;width:calc(100% - 48px);max-height:440px;margin:24px auto 0;display:block}.feed-article-layout{grid-template-columns:minmax(0,1fr) 180px;gap:28px;padding:28px;display:grid}.feed-prose{min-width:0;color:var(--feed-text);overflow-wrap:anywhere;font-size:15px;line-height:2}.feed-prose>:first-child{margin-top:0}.feed-prose>:last-child{margin-bottom:0}.feed-prose h2{border-bottom:1px solid var(--feed-border);margin:2.2em 0 .7em;padding-bottom:.45em;font-size:23px;line-height:1.55}.feed-prose h3{margin:1.8em 0 .6em;font-size:19px;line-height:1.6}.feed-prose :is(h2,h3)[id]{scroll-margin-top:96px}.feed-prose p,.feed-prose ul,.feed-prose ol,.feed-prose blockquote,.feed-prose pre,.feed-prose table{margin:1.1em 0}.feed-prose ul,.feed-prose ol{padding-left:1.5rem}.feed-prose a{color:var(--feed-accent);text-underline-offset:3px;text-decoration:underline}.feed-prose 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a{color:var(--feed-muted);font-size:11px;line-height:1.6;display:block}.feed-article-toc-mobile{display:none}.feed-article-related{border-top:1px solid var(--feed-border);padding:24px 28px 28px}.feed-article-related h2{margin-bottom:12px;font-size:17px}.feed-article-related ul{margin:0;padding:0;list-style:none}.feed-article-related li+li{border-top:1px solid var(--feed-border)}.feed-article-related li a{justify-content:space-between;gap:16px;padding:12px 0;font-size:13px;display:flex}.feed-article-related time{color:var(--feed-muted);flex-shrink:0;font-size:11px}.feed-not-found{text-align:center;padding:56px 28px}.feed-not-found-code{color:var(--feed-accent-soft);font-size:clamp(72px,14vw,132px);font-weight:900;line-height:1}.feed-not-found h1{margin:8px 0 10px;font-size:24px}.feed-not-found p{color:var(--feed-muted);font-size:14px}.feed-not-found .primary-link{margin-top:24px}@media (width<=900px){.feed-article-layout{grid-template-columns:minmax(0,1fr)}.feed-article-toc{display:none}.feed-article-toc-mobile{border:1px solid var(--feed-border);background:var(--feed-bg);border-radius:6px;margin:20px 24px 0;padding:14px 16px;display:block}.feed-article-toc-mobile summary{cursor:pointer;font-size:13px;font-weight:700}.feed-article-toc-mobile ol{margin-bottom:0;padding-left:1.2rem}}@media (width<=760px){.feed-prose :is(h2,h3)[id]{scroll-margin-top:160px}.feed-header-nav{width:100%;margin-left:0;overflow-x:auto}.feed-header-nav a{flex:none}.feed-layout--page .feed-menu a:nth-child(n+3){display:flex}.feed-layout--page .feed-menu a[aria-current=page],.feed-layout--page .feed-categories a[aria-current=page]{box-shadow:inset 0 -3px var(--feed-accent)}.feed-page-body,.feed-article-header,.feed-article-layout,.feed-article-related{padding:20px 18px}.feed-page-categories{padding:12px 18px}.feed-article-cover{width:calc(100% - 36px);margin-top:18px}.feed-article-toc-mobile{margin:18px 18px 0}.feed-article-related li a{flex-direction:column;gap:3px}}