:root{--blog-accent:#2563eb;--blog-ink:#152033;--blog-muted:#5b6677;--blog-paper:#fff;--blog-bg:#f4f7fb}*{box-sizing:border-box}body{margin:0;background:var(--blog-bg);color:var(--blog-ink);font:16px/1.65 Inter,system-ui,-apple-system,"Segoe UI",sans-serif}.blog-header,.blog-footer{max-width:1120px;margin:auto;padding:20px 24px;display:flex;justify-content:space-between;gap:16px}.blog-header a,.blog-footer a{color:inherit;text-decoration:none;font-weight:700}.blog-brand{color:var(--blog-accent)!important}.blog-shell{max-width:900px;margin:16px auto 48px;padding:0 24px}.blog-article,.blog-index{background:var(--blog-paper);border:1px solid #e4eaf2;border-radius:22px;padding:clamp(24px,5vw,56px);box-shadow:0 12px 40px #1520330d}.blog-kicker{font-size:.82rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--blog-accent)}h1{font-size:clamp(2rem,5vw,3.5rem);line-height:1.08;margin:.2em 0}h2{line-height:1.25;margin-top:2em}.blog-lead{font-size:1.18rem;color:var(--blog-muted);max-width:65ch}.blog-grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));margin-top:28px}.blog-card{display:block;padding:20px;border:1px solid #e4eaf2;border-radius:16px;text-decoration:none;color:inherit;transition:transform .15s,border-color .15s}.blog-card:hover{transform:translateY(-2px);border-color:var(--blog-accent)}.blog-card h2{font-size:1.15rem;margin:0 0 8px}.blog-card p{color:var(--blog-muted);margin:0}.blog-note{margin:28px 0;padding:18px 20px;border-left:4px solid var(--blog-accent);background:#f8fafc}.blog-back a{color:var(--blog-accent);font-weight:700}.blog-footer{color:var(--blog-muted);font-size:.9rem}@media(max-width:640px){.blog-header,.blog-footer{padding:16px}.blog-shell{padding:0 12px;margin:4px auto 28px}.blog-article,.blog-index{border-radius:16px;padding:24px 20px}}