:root{--bg:#f7f5ef;--surface:#fffaf0;--ink:#161616;--muted:#62615b;--line:#ded8ca;--accent:#1f6feb;--accent-2:#0f9f6e;--warning:#9a6700;--danger:#c3362b;--shadow:0 20px 60px rgba(20,20,20,.08);--radius:22px;--max:1180px}
[data-theme=dark]{--bg:#0d1117;--surface:#151b23;--ink:#f0f3f6;--muted:#a7b0bb;--line:#30363d;--accent:#58a6ff;--accent-2:#4ade80;--warning:#f2cc60;--danger:#ff7b72;--shadow:0 20px 60px rgba(0,0,0,.45)}
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@media(max-width:900px){.hero,.magazine,.article-layout{grid-template-columns:1fr}.category-strip,.grid,.article-grid{grid-template-columns:repeat(2,1fr)}.toc{position:static}.site-nav{display:none;position:absolute;left:1rem;right:1rem;top:66px;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:.8rem;box-shadow:var(--shadow)}.site-nav.open{display:grid}.nav-toggle{display:block}.header-inner{position:relative}.site-footer{flex-direction:column}}@media(max-width:560px){main{padding:1rem}.hero-panel{padding:1.2rem}.category-strip,.grid,.article-grid{grid-template-columns:1fr}.feature{min-height:auto}h1{letter-spacing:-.04em}}