.search-bar{background:var(--bg-primary);border:1.5px solid var(--border);border-radius:8px;align-items:center;width:100%;transition:border-color .15s,box-shadow .15s;display:flex;overflow:hidden}.search-bar:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px #0969da26}[data-theme=dark] .search-bar:focus-within{box-shadow:0 0 0 3px #58a6ff26}.search-icon{color:var(--text-muted);flex-shrink:0;align-items:center;padding:0 8px 0 12px;display:flex}.search-input{height:38px;color:var(--text-primary);background:0 0;border:none;outline:none;flex:1;font-family:inherit;font-size:.875rem}.search-input::placeholder{color:var(--text-muted)}.search-input::-webkit-search-cancel-button{-webkit-appearance:none}.search-input::-webkit-search-decoration{-webkit-appearance:none}.search-clear{color:var(--text-muted);border-radius:4px;align-items:center;padding:0 6px;transition:color .15s;display:flex}.search-clear:hover{color:var(--text-primary)}.search-submit{background:var(--accent);color:#fff;white-space:nowrap;border-left:none;flex-shrink:0;height:38px;padding:0 14px;font-size:.8125rem;font-weight:600;transition:background .15s}.search-submit:hover{background:var(--accent-hover)}.navbar{z-index:100;height:var(--navbar-height);background:var(--navbar-bg);border-bottom:1px solid #0000;transition:border-color .2s,box-shadow .2s,-webkit-backdrop-filter .2s,backdrop-filter .2s;position:fixed;top:0;left:0;right:0}.navbar--scrolled{border-bottom-color:var(--border);box-shadow:var(--shadow-sm);-webkit-backdrop-filter:blur(12px)}.navbar-inner{align-items:center;gap:16px;max-width:1280px;height:100%;margin:0 auto;padding:0 20px;display:flex}.navbar-brand{flex-shrink:0;align-items:center;gap:8px;display:flex}.brand-dot{background:var(--accent);border-radius:50%;flex-shrink:0;width:10px;height:10px}.brand-name{color:var(--text-primary);letter-spacing:-.03em;white-space:nowrap;font-size:1.2rem;font-weight:700}.navbar-center{flex:1;max-width:480px;margin:0 auto}.navbar-actions{flex-shrink:0;align-items:center;gap:8px;display:flex}.theme-toggle{width:38px;height:38px;color:var(--text-secondary);border-radius:8px;justify-content:center;align-items:center;transition:background .15s,color .15s;display:flex}.theme-toggle:hover{background:var(--bg-primary);color:var(--text-primary)}@media (width<=600px){.navbar-center{max-width:none}.brand-name{font-size:1rem}}.category-bar{top:var(--navbar-height);z-index:90;height:var(--category-height);background:var(--bg-secondary);border-bottom:1px solid var(--border);position:fixed;left:0;right:0;overflow:hidden}.category-inner{scrollbar-width:none;-ms-overflow-style:none;align-items:center;gap:4px;max-width:1280px;height:100%;margin:0 auto;padding:0 20px;display:flex;overflow-x:auto}.category-inner::-webkit-scrollbar{display:none}.category-btn{height:32px;color:var(--text-secondary);white-space:nowrap;border-radius:6px;flex-shrink:0;padding:0 14px;font-size:.8125rem;font-weight:500;transition:background .15s,color .15s}.category-btn:hover{background:var(--bg-primary);color:var(--text-primary)}.category-btn--active{background:var(--accent);color:#fff}.category-btn--active:hover{background:var(--accent-hover);color:#fff}.article-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);flex-direction:column;transition:transform .2s,box-shadow 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.15s}.article-card a:hover .card-title{color:var(--accent)}.card-description{color:var(--text-secondary);flex:1;font-size:.8125rem;line-height:1.55}.card-read-more{color:var(--accent);align-items:center;gap:4px;margin-top:auto;padding-top:4px;font-size:.8125rem;font-weight:600;transition:gap .15s;display:inline-flex}.card-read-more:hover{gap:6px}@keyframes shimmer{0%{background-position:-400px 0}to{background-position:400px 0}}.skeleton-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);flex-direction:column;display:flex;overflow:hidden}.skeleton-image{aspect-ratio:16/9;background:linear-gradient(90deg, var(--bg-primary) 25%, var(--border) 37%, var(--bg-primary) 63%);background-size:800px 100%;animation:1.4s infinite shimmer}.skeleton-body{flex-direction:column;flex:1;gap:10px;min-height:140px;padding:16px;display:flex}.skeleton-line{background:linear-gradient(90deg, var(--bg-primary) 25%, var(--border) 37%, var(--bg-primary) 63%);background-size:800px 100%;border-radius:6px;width:100%;height:12px;animation:1.4s infinite shimmer}.skeleton-line--short{width:45%;height:10px}.skeleton-line--medium{width:70%}.article-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;display:grid}.empty-state{text-align:center;color:var(--text-muted);padding:80px 20px;font-size:.9375rem}@media (width<=480px){.article-grid{grid-template-columns:1fr;gap:14px}}.pagination{flex-wrap:wrap;justify-content:center;align-items:center;gap:4px;margin-top:40px;display:flex}.page-btn{min-width:36px;height:36px;color:var(--text-secondary);border:1px solid var(--border);background:var(--bg-card);border-radius:6px;padding:0 10px;font-size:.875rem;font-weight:500;transition:background .15s,color .15s,border-color .15s}.page-btn:hover:not(:disabled){background:var(--bg-primary);color:var(--text-primary);border-color:var(--accent)}.page-btn--active{background:var(--accent);color:#fff;border-color:var(--accent);font-weight:600}.page-btn--active:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover);color:#fff}.page-btn--nav{padding:0 14px;font-weight:600}.page-btn:disabled{opacity:.35;cursor:not-allowed}.page-ellipsis{color:var(--text-muted);padding:0 4px;font-size:.875rem;line-height:36px}.error-banner{border-radius:var(--radius);color:#b91c1c;background:#fff0f0;border:1px solid #fca5a5;align-items:flex-start;gap:12px;margin-bottom:24px;padding:16px;display:flex}[data-theme=dark] .error-banner{color:#fca5a5;background:#ef44441a;border-color:#ef44444d}.error-icon{flex-shrink:0;margin-top:1px;font-size:1.25rem}.error-content{flex-direction:column;gap:4px;display:flex}.error-content strong{font-weight:600}.error-content p{opacity:.9;font-size:.875rem}.error-hint{margin-top:4px;opacity:.8!important;font-size:.8125rem!important}.error-hint code{background:#00000014;border-radius:3px;padding:1px 5px;font-family:ui-monospace,monospace;font-size:.8em}[data-theme=dark] .error-hint code{background:#ffffff1a}.footer{background:var(--bg-secondary);border-top:1px solid var(--border);margin-top:auto;padding:24px 20px}.footer-inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;max-width:1280px;margin:0 auto;display:flex}.footer-inner p{color:var(--text-muted);font-size:.8125rem}.footer-brand{color:var(--text-secondary);font-weight:600}.footer-inner a{color:var(--accent);font-weight:500}.footer-inner a:hover{text-decoration:underline}.footer-note{font-size:.75rem!important}.app-layout{flex-direction:column;min-height:100vh;display:flex}.main-content{padding-top:calc(var(--navbar-height) + var(--category-height) + 24px);flex:1;padding-bottom:48px}.content-inner{max-width:1280px;margin:0 auto;padding:0 20px}.section-heading{color:var(--text-primary);letter-spacing:-.02em;margin-bottom:24px;font-size:1.5rem;font-weight:700}@media (width<=768px){.section-heading{margin-bottom:16px;font-size:1.25rem}}*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary:#f4f5f7;--bg-secondary:#fff;--bg-card:#fff;--text-primary:#0d1117;--text-secondary:#57606a;--text-muted:#8b949e;--border:#d0d7de;--accent:#0969da;--accent-hover:#0550ae;--navbar-bg:#ffffffeb;--shadow-sm:0 1px 3px #00000014;--shadow-md:0 4px 12px #0000001a;--shadow-lg:0 8px 24px #00000024;--radius:10px;--navbar-height:64px;--category-height:52px}[data-theme=dark]{--bg-primary:#0d1117;--bg-secondary:#161b22;--bg-card:#21262d;--text-primary:#e6edf3;--text-secondary:#8b949e;--text-muted:#6e7681;--border:#30363d;--accent:#58a6ff;--accent-hover:#79c0ff;--navbar-bg:#0d1117eb;--shadow-sm:0 1px 3px #0006;--shadow-md:0 4px 12px #00000080;--shadow-lg:0 8px 24px #0009}html,body{height:100%}body{background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;line-height:1.6;transition:background .2s,color .2s}#root{flex-direction:column;min-height:100%;display:flex}button{cursor:pointer;background:0 0;border:none;font-family:inherit}ul{list-style:none}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}::-webkit-scrollbar{width:4px;height:4px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}