.article-outline-rail{align-self:stretch;min-width:0;display:none}.article-outline-sticky{top:calc(var(--header-h) + 24px);position:sticky}.article-outline-sticky h2{border-bottom:1px solid var(--line);color:var(--ink-2);align-items:center;gap:8px;margin:0 0 12px;padding-bottom:12px;font-size:13px;font-weight:600;display:flex}.article-outline-sticky h2>svg{color:var(--accent-ink)}.article-outline-sticky h2>small{font-family:var(--font-mono);color:var(--ink-4);margin-left:auto;font-size:11px;font-weight:400}.article-outline-sticky nav{overscroll-behavior-y:contain;font-size:12px;line-height:1.65;overflow-y:auto}.article-outline-sticky ol{border-left:1px solid var(--line-strong)}.article-outline-sticky a{color:var(--ink-3);overflow-wrap:anywhere;border-left:2px solid #0000;margin-left:-1px;padding:7px 10px 7px 12px;display:block}.article-outline-sticky a[data-nested]{padding-left:24px;font-size:11.5px}.article-outline-sticky a:hover,.article-outline-sticky a:focus-visible{color:var(--accent-ink);border-left-color:var(--accent);background:var(--accent-soft)}.article-outline-sticky nav:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.article-outline-trigger{left:max(10px, env(safe-area-inset-left));bottom:calc(var(--tab-h) + env(safe-area-inset-bottom) + 18px);z-index:35;border:1px solid var(--line-strong);background:var(--surface);min-height:44px;color:var(--accent-ink);cursor:pointer;border-radius:8px;justify-content:center;align-items:center;gap:5px;padding:0 12px;font-size:12px;font-weight:600;display:inline-flex;position:fixed;box-shadow:0 3px 14px #0000001f}.article-outline-trigger:hover{border-color:var(--accent)}.article-outline-trigger:focus-visible{outline:2px solid var(--accent);outline-offset:3px}@media (width>=1024px){.article-outline-rail{display:block}.article-outline-trigger{display:none}.detail-article-layout.has-outline{grid-template-columns:176px minmax(0,1fr);gap:36px 24px}.detail-article-layout.has-outline>.article-outline-rail{grid-area:1/1/span 2}.detail-article-layout.has-outline>.detail-article{grid-area:1/2;max-width:none}.detail-article-layout.has-outline>.detail-reading-rail{grid-area:2/2}.detail-article-layout.has-outline>.detail-reading-rail>.detail-rail-content{position:static}}@media (width>=1280px){.detail-article-layout.has-outline{grid-template-columns:176px minmax(0,1fr) 280px}.detail-article-layout.has-outline>.article-outline-rail{grid-row:1}.detail-article-layout.has-outline>.detail-reading-rail{grid-area:1/3}.detail-article-layout.has-outline>.detail-reading-rail>.detail-rail-content{position:sticky}}