:root{--bg-primary:#fff;--bg-secondary:#f7f8fa;--bg-card:#fff;--bg-hover:#f0f2f5;--text-primary:#1a1a2e;--text-secondary:#6b7280;--text-muted:#9ca3af;--border-color:#e5e7eb;--accent:#6366f1;--accent-hover:#4f46e5;--accent-light:#e0e7ff;--code-bg:#f3f4f6;--shadow-sm:0 1px 3px #00000014;--shadow-md:0 4px 16px #00000014;--shadow-lg:0 8px 32px #0000001a;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--nav-height:64px;--max-width:800px;--transition:.3s ease}[data-theme=dark]{--bg-primary:#0f1115;--bg-secondary:#16181f;--bg-card:#1a1d27;--bg-hover:#252836;--text-primary:#e4e6eb;--text-secondary:#9ca3af;--text-muted:#6b7280;--border-color:#2a2d3a;--accent:#818cf8;--accent-hover:#6366f1;--accent-light:#1e1e3a;--code-bg:#1e2128;--shadow-sm:0 1px 3px #0000004d;--shadow-md:0 4px 16px #0000004d;--shadow-lg:0 8px 32px 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h3{margin-bottom:16px;font-size:1.1rem;font-weight:600}.skill-tags{flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:40px;display:flex}.skill-tag{background:var(--bg-secondary);border:1px solid var(--border-color);color:var(--text-secondary);border-radius:20px;padding:6px 14px;font-size:.85rem}.about-link{font-size:.95rem}.footer{border-top:1px solid var(--border-color);text-align:center;margin-top:auto;padding:32px 0}.footer p{color:var(--text-muted);font-size:.85rem}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.article-card{animation:.4s both fadeIn}.article-card:first-child{animation-delay:50ms}.article-card:nth-child(2){animation-delay:.1s}.article-card:nth-child(3){animation-delay:.15s}.article-card:nth-child(4){animation-delay:.2s}.article-card:nth-child(5){animation-delay:.25s}.article-card:nth-child(6){animation-delay:.3s}.view{animation:.3s fadeIn}@media (width<=768px){.hero{padding:48px 0 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print{.navbar,.reading-progress,.theme-toggle,.back-to-top,.article-toc,.footer,.search-box,.filter-bar,.back-btn{display:none!important}.hero{margin-top:0;padding:20px 0}.article-layout{padding:20px}.article-main{max-width:100%}body{color:#000;background:#fff}.article-body pre{page-break-inside:avoid;border:1px solid #ddd}a{color:#000;text-decoration:underline}}@media (width<=1024px){.article-toc{display:none}.article-layout{padding:calc(var(--nav-height) + 20px) 24px 60px}}.search-highlight{color:#1a1a2e;background:#fef08a;border-radius:2px;padding:0 2px}[data-theme=dark] .search-highlight{color:#fef9c3;background:#854d0e}.no-results{text-align:center;color:var(--text-muted);padding:60px 24px}.no-results-icon{opacity:.5;margin-bottom:16px;font-size:3rem}.article-card{color:inherit;text-decoration:none}.article-card:hover{color:inherit}.article-body h2,.article-body h3{scroll-margin-top:90px}.about-link-button{background:var(--accent);color:#fff;border-radius:var(--radius-sm);padding:10px 20px;font-weight:500;display:inline-block}.about-link-button:hover{color:#fff;background:var(--accent-hover)}