:root{--primary-color:#1845ad;--primary-hover:#0f2d7a;--secondary-color:#f39c12;--text-dark:#222;--text-light:#555;--bg-light:#f9f9f9;--bg-white:#ffffff;--border-color:#e0e0e0;--shadow:0 2px 10px rgba(0, 0, 0, 0.1);--shadow-hover:0 4px 20px rgba(0, 0, 0, 0.15);--font-primary:'Segoe UI',-apple-system,BlinkMacSystemFont,'Roboto','Helvetica Neue',Arial,sans-serif;--max-width:1200px;--border-radius:8px;--transition:all 0.3s ease}*{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font-primary);background:var(--bg-light);color:var(--text-dark);line-height:1.6;margin:0;padding:0}header{background:linear-gradient(135deg,var(--primary-color),var(--primary-hover));color:#fff;padding:1.5rem 2rem;box-shadow:var(--shadow);position:sticky;top:0;z-index:1000}header .container{max-width:var(--max-width);margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap}header .logo-section{display:flex;align-items:center;gap:1rem}header img{height:50px;width:auto}header h1{font-size:1.5rem;font-weight:700;margin:0}header nav{display:flex;gap:1.5rem;align-items:center;flex-wrap:wrap}header nav a{color:#fff;text-decoration:none;font-weight:500;transition:var(--transition);padding:.5rem 1rem;border-radius:var(--border-radius)}header nav a:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}main{max-width:var(--max-width);margin:2rem auto;padding:2rem;background:var(--bg-white);border-radius:var(--border-radius);box-shadow:var(--shadow);min-height:70vh}h1{font-size:2.5rem;color:var(--text-dark);margin-bottom:1rem;line-height:1.2}h2{font-size:2rem;color:var(--text-dark);margin-top:2rem;margin-bottom:1rem;padding-bottom:.5rem;border-bottom:3px solid var(--primary-color)}h3{font-size:1.5rem;color:var(--text-dark);margin-top:1.5rem;margin-bottom:.75rem}h4{font-size:1.25rem;color:var(--text-dark);margin-top:1.25rem;margin-bottom:.5rem}p{margin-bottom:1rem;line-height:1.8;color:var(--text-light)}a{color:var(--primary-color);text-decoration:none;transition:var(--transition)}a:hover{color:var(--primary-hover);text-decoration:underline}ol,ul{margin-bottom:1rem;padding-left:2rem}li{margin-bottom:.5rem;line-height:1.6}.article-meta{display:flex;flex-wrap:wrap;gap:1.5rem;padding:1rem 0;margin-bottom:2rem;border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color);font-size:.9rem;color:var(--text-light)}.article-meta span{display:flex;align-items:center;gap:.5rem}.category-tag{display:inline-block;background:var(--primary-color);color:#fff;padding:.25rem .75rem;border-radius:20px;font-size:.85rem;font-weight:500;transition:var(--transition)}.category-tag:hover{background:var(--primary-hover);transform:translateY(-2px)}.featured-image{width:100%;height:auto;border-radius:var(--border-radius);margin-bottom:2rem;box-shadow:var(--shadow)}img[data-src]{opacity:0;transition:opacity .3s ease-in}img.loaded,img[loading=lazy]{opacity:1}.adsense-placeholder{background:#f0f0f0;border:2px dashed #ccc;padding:3rem 1rem;margin:2rem 0;text-align:center;border-radius:var(--border-radius);color:#888;font-weight:500}.adsense-container{margin:2rem 0;text-align:center;min-height:100px;display:flex;align-items:center;justify-content:center}.related-articles{margin-top:3rem;padding:2rem;background:var(--bg-light);border-radius:var(--border-radius);border-left:4px solid var(--primary-color)}.related-articles h3{margin-top:0;color:var(--primary-color)}.related-articles ul{list-style:none;padding:0}.related-articles li{padding:.75rem 0;border-bottom:1px solid var(--border-color)}.related-articles li:last-child{border-bottom:none}.related-articles a{font-weight:500;font-size:1.05rem}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:2rem;margin:2rem 0}.card{background:var(--bg-white);border:1px solid var(--border-color);border-radius:var(--border-radius);padding:1.5rem;transition:var(--transition);box-shadow:0 2px 5px rgba(0,0,0,.05)}.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-5px)}.card h3{margin-top:0;font-size:1.25rem}.card p{font-size:.95rem;margin-bottom:1rem}.breadcrumb{padding:1rem 0;font-size:.9rem;color:var(--text-light)}.breadcrumb a{color:var(--primary-color);margin:0 .5rem}.breadcrumb a:first-child{margin-left:0}footer{background:#2c3e50;color:#fff;padding:3rem 2rem 1.5rem;margin-top:4rem}footer .container{max-width:var(--max-width);margin:0 auto}footer .footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-bottom:2rem}footer h4{color:#fff;margin-bottom:1rem;font-size:1.1rem}footer ul{list-style:none;padding:0}footer li{margin-bottom:.5rem}footer a{color:#ecf0f1;transition:var(--transition)}footer a:hover{color:var(--secondary-color);text-decoration:none}footer .copyright{text-align:center;padding-top:2rem;border-top:1px solid rgba(255,255,255,.1);color:#95a5a6;font-size:.9rem}@media (max-width:768px){header .container{flex-direction:column;text-align:center;gap:1rem}header nav{justify-content:center;gap:1rem}header nav a{padding:.5rem;font-size:.9rem}main{margin:1rem;padding:1.5rem}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.25rem}.card-grid{grid-template-columns:1fr}.article-meta{flex-direction:column;gap:.5rem}footer .footer-grid{grid-template-columns:1fr}}@media (max-width:480px){html{font-size:14px}header,main{padding:1rem}header img{height:40px}}@media print{.adsense-placeholder,.related-articles,footer,header,nav{display:none}main{box-shadow:none;max-width:100%}body{background:#fff}a{color:#000;text-decoration:underline}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}a:focus,button:focus,input:focus,textarea:focus{outline:3px solid var(--secondary-color);outline-offset:2px}@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}.loading{animation:1.5s ease-in-out infinite pulse}.search-btn{background:rgba(255,255,255,.2);border:none;color:#fff;padding:.5rem .75rem;border-radius:var(--border-radius);cursor:pointer;font-size:1rem;transition:var(--transition)}.search-btn:hover{background:rgba(255,255,255,.3);transform:translateY(-2px)}.search-modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.7);z-index:2000;align-items:flex-start;justify-content:center;padding-top:10vh}.search-modal.active{display:flex}.search-modal-content{background:var(--bg-white);width:90%;max-width:600px;border-radius:var(--border-radius);box-shadow:0 10px 40px rgba(0,0,0,.3);animation:.2s slideDown}@keyframes slideDown{from{transform:translateY(-20px);opacity:0}to{transform:translateY(0);opacity:1}}.search-header{display:flex;border-bottom:1px solid var(--border-color)}.search-header input{flex:1;padding:1.25rem;border:none;font-size:1.1rem;outline:0;border-radius:var(--border-radius) 0 0 0}.search-header .close-btn{background:0 0;border:none;font-size:2rem;padding:0 1.25rem;cursor:pointer;color:var(--text-light);transition:var(--transition)}.search-header .close-btn:hover{color:var(--text-dark)}.search-results{max-height:60vh;overflow-y:auto;padding:1rem}.search-result{padding:1rem;border-bottom:1px solid var(--border-color);transition:var(--transition)}.search-result:last-child{border-bottom:none}.search-result:hover{background:var(--bg-light)}.search-result h3{margin:0 0 .5rem;font-size:1.1rem}.search-result h3 a{color:var(--primary-color)}.search-result p{margin:0 0 .5rem;font-size:.9rem;color:var(--text-light)}.search-category{display:inline-block;background:var(--bg-light);color:var(--text-light);padding:.2rem .5rem;border-radius:4px;font-size:.8rem}.no-results{text-align:center;padding:2rem;color:var(--text-light)}