*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#1d4ed8;--bg:#f8fafc;--card:#fff;--text:#1e293b;--muted:#64748b;--border:#e2e8f0;--radius:8px}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:var(--text);background:var(--bg);line-height:1.7}
a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}
.container{max-width:900px;margin:0 auto;padding:0 1rem}

.nav{background:var(--card);border-bottom:1px solid var(--border);padding:.75rem 0;position:sticky;top:0;z-index:100}
.nav-inner{display:flex;justify-content:space-between;align-items:center}
.logo{font-size:1.2rem;font-weight:700;color:var(--text)}
.nav-links{display:flex;gap:1.5rem;list-style:none}.nav-links a{color:var(--muted);font-size:.9rem}

.hero{text-align:center;padding:2.5rem 0 1.5rem}
.hero h1{font-size:1.8rem;margin-bottom:.4rem}.hero-sub{color:var(--muted)}

.categories-bar{display:flex;flex-wrap:wrap;gap:.5rem;margin:1rem 0;justify-content:center}
.cat-tag{display:inline-block;padding:.3rem .7rem;background:var(--card);border:1px solid var(--border);border-radius:20px;font-size:.8rem;color:var(--muted)}
.cat-tag:hover{background:var(--primary);color:#fff;text-decoration:none}
.cat-tag span{font-size:.7rem;opacity:.7}
.cat-label{display:inline-block;font-size:.75rem;color:var(--primary);font-weight:600;text-transform:uppercase;letter-spacing:.5px;margin-bottom:.25rem}

.articles-grid{display:grid;gap:1.25rem;margin:1.5rem 0}
.article-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem}
.article-card h2{font-size:1.1rem;margin-bottom:.4rem;line-height:1.4}
.article-card h2 a{color:var(--text)}.article-card h2 a:hover{color:var(--primary)}
.excerpt{font-size:.9rem;color:var(--muted);margin-bottom:.4rem}
.article-card time{font-size:.8rem;color:var(--muted)}

.article-full{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:2rem;margin:1.5rem 0}
.article-header{margin-bottom:1.5rem}.article-header h1{font-size:1.8rem;margin:.5rem 0 .25rem;line-height:1.3}
.article-header time{font-size:.85rem;color:var(--muted)}
.article-content{line-height:1.8;font-size:1.02rem}
.article-content h2{margin:2rem 0 .75rem;font-size:1.35rem;color:var(--text)}
.article-content h3{margin:1.5rem 0 .5rem;font-size:1.15rem}
.article-content p{margin-bottom:1rem}
.article-content ul,.article-content ol{margin:1rem 0;padding-left:1.5rem}
.article-content li{margin-bottom:.4rem}
.article-content table{width:100%;border-collapse:collapse;margin:1rem 0}
.article-content th,.article-content td{border:1px solid var(--border);padding:.5rem .75rem;text-align:left;font-size:.9rem}
.article-content th{background:var(--bg);font-weight:600}
.article-content blockquote{border-left:3px solid var(--primary);padding:.5rem 1rem;margin:1rem 0;color:var(--muted);font-style:italic}
.article-content a{color:var(--primary)}

.faq{margin:2rem 0}
details{border:1px solid var(--border);border-radius:var(--radius);margin-bottom:.5rem;background:var(--card)}
summary{padding:.75rem 1rem;cursor:pointer;font-weight:600;font-size:.95rem}
details p{padding:0 1rem .75rem;color:var(--muted);line-height:1.7}

.related{margin:2rem 0}.related h2{margin-bottom:1rem}
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}
.related-card{display:block;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:1rem}
.related-card:hover{box-shadow:0 2px 8px rgba(0,0,0,.06);text-decoration:none}
.related-card h3{font-size:.95rem;color:var(--text);margin-bottom:.25rem}
.related-card time{font-size:.8rem;color:var(--muted)}

.pagination{display:flex;gap:.5rem;justify-content:center;margin:2rem 0}
.pagination a,.pagination .current{display:inline-block;padding:.4rem .8rem;border:1px solid var(--border);border-radius:var(--radius);font-size:.9rem}
.pagination .current{background:var(--primary);color:#fff;border-color:var(--primary)}

.legal-content{line-height:1.8;margin:1rem 0}
.legal-content h2{margin:1.5rem 0 .5rem}
.error-page{text-align:center;padding:4rem 0}.error-page h1{font-size:4rem;color:var(--muted)}
.btn{display:inline-block;background:var(--primary);color:#fff;padding:.5rem 1.25rem;border-radius:var(--radius);font-size:.9rem}
footer{margin-top:3rem;padding:1.5rem 0;border-top:1px solid var(--border);color:var(--muted);font-size:.85rem}
.footer-inner{display:flex;justify-content:space-between;align-items:center}
.footer-links{display:flex;gap:1rem}.footer-links a{color:var(--muted)}
@media(max-width:600px){.related-grid{grid-template-columns:1fr}}