:root{--bg-primary:#ffffff;--bg-secondary:#f9fafb;--bg-tertiary:#f1f5f9;--text-primary:#1e293b;--text-secondary:#475569;--text-tertiary:#64748b;--text-muted:#94a3b8;--border-color:#e2e8f0;--card-bg:#ffffff;--card-shadow:rgba(0,0,0,0.06);--card-shadow-hover:rgba(59,130,246,0.18);--accent-blue:#3b82f6;--accent-purple:#8b5cf6}.dark-mode:root{--bg-primary:#0f172a;--bg-secondary:#1e293b;--bg-tertiary:#334155;--text-primary:#f1f5f9;--text-secondary:#cbd5e1;--text-tertiary:#94a3b8;--text-muted:#64748b;--border-color:rgba(71,85,105,0.5);--card-bg:rgba(30,41,59,0.9);--card-shadow:rgba(0,0,0,0.3);--card-shadow-hover:rgba(59,130,246,0.3);--accent-blue:#60a5fa;--accent-purple:#a78bfa}.blog-page{min-height:100vh;display:flex;flex-direction:column;background:linear-gradient(135deg,#f5f7fa,#c3cfe2);position:relative;overflow-x:hidden;transition:background .3s ease}.dark-mode 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