*{margin:0;padding:0;box-sizing:border-box}ul,ol{list-style:none}body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background-color:#f2f4f0;color:#333;line-height:1.6}.site-header{padding:1.5rem 1rem;border-bottom:1px solid rgba(74,124,89,0.1)}.header-container{display:flex;justify-content:space-between;align-items:center;max-width:1280px;margin:0 auto}.logo{font-size:1.8rem;font-weight:800;color:#4a7c59;letter-spacing:-0.5px}.nav-list{display:flex;gap:2rem}.nav-link{text-decoration:none;color:#555;font-weight:600;font-size:0.95rem;padding:0.5rem 0;position:relative;transition:color 0.3s ease}.nav-link:hover{color:#4a7c59}.nav-link::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background-color:#4a7c59;transition:width 0.3s ease}.nav-link:hover::after{width:100%}@media (min-width:768px){.main-content{display:grid;grid-template-columns:1fr 300px;gap:3rem;max-width:1280px;margin:3rem auto;padding:0 1rem}}.article-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 5px 15px rgba(0,0,0,0.05);transition:transform 0.3s ease,box-shadow 0.3s ease;margin-bottom:2rem}.article-card:hover{transform:translateY(-5px);box-shadow:0 12px 25px rgba(74,124,89,0.12)}.article-card img{width:100%;height:220px;object-fit:cover;display:block}.article-card-content{padding:1.8rem}.article-card h2{font-size:1.5rem;color:#222;margin-bottom:0.75rem;font-weight:700}.article-card p{color:#666;margin-bottom:1.2rem}.article-card a{display:inline-block;color:#4a7c59;text-decoration:none;font-weight:600;border:2px solid #4a7c59;padding:0.6rem 1.5rem;border-radius:50px;transition:all 0.3s ease}.article-card a:hover{background-color:#4a7c59;color:#fff}.sidebar{padding:2rem;background:#fff;border-radius:12px;box-shadow:0 5px 15px rgba(0,0,0,0.05)}.sidebar h3{font-size:1.3rem;color:#222;margin-bottom:1.5rem;padding-bottom:0.75rem;border-bottom:2px solid #4a7c59}.sidebar ul li{margin-bottom:1rem}.sidebar ul li a{color:#555;text-decoration:none;transition:color 0.3s ease;font-weight:500}.sidebar ul li a:hover{color:#4a7c59}.footer{background-color:#fff;padding:3rem 1rem;margin-top:4rem;border-top:1px solid rgba(74,124,89,0.15)}.footer-content{max-width:1280px;margin:0 auto;text-align:center;color:#666}.footer p{margin-top:1rem;font-size:0.9rem}@media (max-width:767px){.header-container{flex-direction:column;gap:1.5rem}.nav-list{gap:1.2rem}.main-content{padding:0 1rem;margin:2rem auto}.article-card{margin-bottom:1.5rem}}