:root{--primary-color:#2c3e50;--secondary-color:#3498db;--accent-color:#e74c3c;--light-color:#ecf0f1;--dark-color:#2c3e50;--success-color:#27ae60;--warning-color:#f39c12;--font-main:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;}*{margin:0;padding:0;box-sizing:border-box;}body{font-family:var(--font-main);line-height:1.6;color:#333;background-color:#f8f9fa;}.container{max-width:1200px;margin:0 auto;padding:0 20px;}.header{background-color:var(--primary-color);color:white;padding:1rem 0;box-shadow:0 2px 5px rgba(0,0,0,0.1);}.header .container{display:flex;justify-content:space-between;align-items:center;}.header h1{font-size:1.5rem;font-weight:600;}.nav ul{display:flex;list-style:none;}.nav ul li{margin-left:20px;}.nav ul li a{color:white;text-decoration:none;font-size:0.9rem;transition:color 0.3s;}.nav ul li a:hover{color:var(--secondary-color);}.hero{background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);color:white;padding:3rem 0;text-align:center;}.hero h1{font-size:2.5rem;margin-bottom:1rem;font-weight:700;}.hero p{font-size:1.2rem;max-width:800px;margin:0 auto 1.5rem;}.btn{display:inline-block;background-color:var(--accent-color);color:white;padding:0.8rem 1.5rem;border-radius:5px;text-decoration:none;font-weight:600;transition:background-color 0.3s;}.btn:hover{background-color:#c0392b;}.main{padding:3rem 0;}.section{background-color:white;border-radius:8px;box-shadow:0 2px 15px rgba(0,0,0,0.05);padding:2rem;margin-bottom:2rem;}.section h2{color:var(--primary-color);margin-bottom:1.5rem;padding-bottom:0.5rem;border-bottom:2px solid var(--light-color);font-size:1.8rem;}.section h3{color:var(--secondary-color);margin:1.5rem 0 1rem;font-size:1.4rem;}.framework{background-color:#f8f9fa;border-left:4px solid var(--secondary-color);padding:1.5rem;margin-bottom:2rem;}.framework h3{color:var(--primary-color);margin-top:0;}.framework-item{margin-bottom:1rem;}.framework-item strong{color:var(--secondary-color);font-size:1.1rem;display:block;margin-bottom:0.3rem;}.question-category{margin-bottom:2rem;}.question{background-color:#f8f9fa;padding:1rem;border-radius:5px;margin-bottom:1rem;}.question strong{color:var(--primary-color);display:block;margin-bottom:0.5rem;}.question p{color:#666;font-style:italic;font-size:0.9rem;}.example{background-color:#fff;border-left:3px solid var(--success-color);padding:1rem;margin-bottom:1.5rem;}.example strong{color:var(--success-color);display:block;margin-bottom:0.5rem;}.checklist{background-color:#f8f9fa;padding:1.5rem;border-radius:5px;}.checklist h3{margin-top:0;margin-bottom:1rem;}.checklist ul{list-style-type:none;}.checklist ul li{margin-bottom:0.8rem;padding-left:1.5rem;position:relative;}.checklist ul li:before{content:'✓';color:var(--success-color);position:absolute;left:0;}.tip{background-color:#fff3cd;border-left:3px solid var(--warning-color);padding:1rem;margin-bottom:1.5rem;}.tip strong{color:var(--warning-color);display:block;margin-bottom:0.5rem;}.footer{background-color:var(--dark-color);color:white;padding:2rem 0;text-align:center;}