*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color:#2d5a27;--secondary-color:#4a7c59;--accent-color:#7cb342;--text-color:#333;--light-bg:#f5f9f5;--border-color:#e0e0e0;--max-width:900px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.7;color:var(--text-color);background-color:#fff}.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}.site-header{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;padding:15px 0;position:-webkit-sticky;position:sticky;top:0;z-index:100;box-shadow:0 2px 10px rgba(0,0,0,.1)}.site-header nav{display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.5rem;font-weight:700}.logo,.nav-links a{color:#fff;text-decoration:none}.nav-links a{margin-left:25px;font-weight:500;transition:opacity .2s}.nav-links a:hover{opacity:.8}main.container{min-height:calc(100vh - 200px);padding:40px 20px}.hero{text-align:center;padding:60px 20px;background:linear-gradient(135deg,#e8f5e9,#c8e6c9);border-radius:12px;margin-bottom:40px}.hero h1{font-size:2.5rem;color:var(--primary-color);margin-bottom:20px}.hero p{font-size:1.2rem;color:var(--secondary-color);max-width:600px;margin:0 auto}.articles-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));grid-gap:25px;gap:25px;margin-top:30px}.article-card{border:1px solid var(--border-color);border-radius:10px;overflow:hidden;transition:transform .2s,box-shadow .2s;background:#fff}.article-card:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(0,0,0,.1)}.article-card-image{overflow:hidden}.article-card-image img{transition:transform .3s ease}.article-card:hover .article-card-image img{transform:scale(1.05)}.article-card-content{padding:20px}.article-card h2{font-size:1.2rem;margin-bottom:10px}.article-card h2 a{color:var(--primary-color);text-decoration:none}.article-card h2 a:hover{text-decoration:underline}.article-card .meta{font-size:.85rem;color:#666;margin-bottom:10px}.article-card .description{color:#555;font-size:.95rem}.article-header{margin-bottom:30px;padding-bottom:20px;border-bottom:1px solid var(--border-color)}.article-header h1{font-size:2.2rem;color:var(--primary-color);margin-bottom:15px}.article-header .meta{color:#666;font-size:.9rem}.article-header .keywords{margin-top:15px}.article-header .keywords span{display:inline-block;background:var(--light-bg);color:var(--secondary-color);padding:4px 12px;border-radius:20px;font-size:.8rem;margin-right:8px;margin-bottom:8px}.article-content{font-size:1.1rem;line-height:1.8}.article-content h2{font-size:1.6rem;color:var(--primary-color);margin:35px 0 15px}.article-content h3{font-size:1.3rem;color:var(--secondary-color);margin:25px 0 12px}.article-content p{margin-bottom:18px}.article-content ol,.article-content ul{margin:15px 0;padding-left:25px}.article-content li{margin-bottom:8px}.article-content blockquote{border-left:4px solid var(--accent-color);padding:15px 20px;margin:20px 0;background:var(--light-bg);font-style:italic}.article-content a{color:var(--secondary-color);text-decoration:underline}.category-badge{display:inline-block;background:var(--accent-color);color:#fff;padding:3px 10px;border-radius:4px;font-size:.75rem;text-transform:uppercase;font-weight:600}.site-footer{background:var(--primary-color);color:#fff;padding:30px 0;margin-top:60px;text-align:center}.site-footer p{margin:5px 0;font-size:.9rem}.site-footer a{color:#fff;margin:0 10px}.section-title{font-size:1.8rem;color:var(--primary-color);margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid var(--accent-color)}.related-articles{margin-top:50px;padding-top:30px;border-top:1px solid var(--border-color)}@media (max-width:768px){.hero h1{font-size:1.8rem}.hero p{font-size:1rem}.nav-links a{margin-left:15px;font-size:.9rem}.article-header h1{font-size:1.6rem}.articles-grid{grid-template-columns:1fr}}