*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.6;color:#333;background-color:#f8f9fa}.container{max-width:1200px;margin:0 auto;padding:0 20px}.header{background:linear-gradient(135deg,#667eea 0,#764ba2 100%);color:white;padding:1rem 0;box-shadow:0 2px 10px rgba(0,0,0,0.1)}.nav{display:flex;justify-content:space-between;align-items:center;gap:2rem}.nav-logo{font-size:1.5rem;font-weight:bold;color:white;text-decoration:none;transition:opacity .3s;flex-shrink:0}.nav-logo:hover{opacity:.8}.nav-links{display:flex;gap:2rem;flex-shrink:0}.nav-link{color:white;text-decoration:none;font-weight:500;transition:opacity .3s}.nav-link:hover{opacity:.8}.main{min-height:calc(100vh - 140px);padding:2rem 0}.hero{text-align:center;padding:3rem 0;background:white;border-radius:12px;margin-bottom:3rem;box-shadow:0 4px 20px rgba(0,0,0,0.1)}.hero-title{font-size:2.5rem;font-weight:bold;color:#2d3748;margin-bottom:1rem}.hero-subtitle{font-size:1.2rem;color:#718096;margin-bottom:2rem}.search-container{max-width:500px;margin:0 auto;position:relative}.search-input{width:100%;padding:1rem 1.5rem;border:2px solid #e2e8f0;border-radius:50px;font-size:1rem;outline:0;transition:border-color .3s,box-shadow .3s}.search-input:focus{border-color:#667eea;box-shadow:0 0 0 3px rgba(102,126,234,0.1)}.search-results{position:absolute;top:100%;left:0;right:0;background:white;border:1px solid #e2e8f0;border-radius:8px;box-shadow:0 4px 20px rgba(0,0,0,0.1);z-index:1000;max-height:300px;overflow-y:auto;display:none}.search-result-item{padding:1rem;border-bottom:1px solid #f1f5f9;cursor:pointer;transition:background-color .2s}.search-result-item:hover{background-color:#f8f9fa}.search-result-item:last-child{border-bottom:0}.section-header{text-align:center;margin-bottom:2rem}.section-header h2{font-size:2rem;color:#2d3748;margin-bottom:.5rem}.section-header p{color:#718096;font-size:1.1rem}.faq-section{margin-bottom:3rem}.faq-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:1.5rem}.faq-card{background:white;border-radius:12px;padding:1.5rem;box-shadow:0 2px 10px rgba(0,0,0,0.1);transition:transform .3s,box-shadow .3s}.faq-card:hover{transform:translateY(-2px);box-shadow:0 4px 20px rgba(0,0,0,0.15)}.faq-question{margin-bottom:1rem}.faq-link{color:#2d3748;text-decoration:none;font-size:1.1rem;font-weight:600;line-height:1.4;transition:color .3s}.faq-link:hover{color:#667eea}.faq-answer-preview{color:#718096;font-size:.95rem;line-height:1.5;margin-bottom:1rem}.faq-related{font-size:.85rem;color:#a0aec0}.faq-related a{color:#667eea;text-decoration:none}.faq-related a:hover{text-decoration:underline}.categories-section{margin-bottom:3rem}.categories-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem}.category-card{background:white;border-radius:12px;padding:1.5rem;box-shadow:0 2px 10px rgba(0,0,0,0.1);transition:transform .3s,box-shadow .3s;border-left:4px solid #667eea}.category-card:hover{transform:translateY(-2px);box-shadow:0 4px 20px rgba(0,0,0,0.15)}.category-card .category-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;padding-bottom:.5rem;border-bottom:1px solid #e2e8f0}.category-card .category-title{font-size:1.2rem;font-weight:600;color:#2d3748;margin:0}.category-count{background:#667eea;color:white;padding:.25rem .75rem;border-radius:20px;font-size:.8rem;font-weight:500}.category-preview{display:flex;flex-direction:column;gap:.5rem}.category-faq-item{padding:.5rem 0}.category-faq-link{color:#4a5568;text-decoration:none;font-size:.95rem;line-height:1.4;transition:color .3s;display:block}.category-faq-link:hover{color:#667eea}.category-more{margin-top:.5rem;padding-top:.5rem;border-top:1px solid #f1f5f9}.category-more-link{color:#667eea;text-decoration:none;font-size:.9rem;font-weight:500;transition:color .3s}.category-more-link:hover{color:#5a67d8;text-decoration:underline}.category-link{color:#2d3748;text-decoration:none;transition:color .3s}.category-link:hover{color:#667eea}.category-detail{max-width:1200px;margin:0 auto;padding:2rem 0}.category-detail .category-header{margin-bottom:2rem;padding-bottom:1rem;border-bottom:2px solid #f1f5f9}.category-detail .category-header .category-title{font-size:2.5rem;color:#2d3748;margin-bottom:1rem}.category-meta{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.category-meta .category-count{background:linear-gradient(135deg,#667eea 0,#764ba2 100%);color:white;padding:.5rem 1rem;border-radius:25px;font-size:.9rem;font-weight:500}.category-content{margin-bottom:3rem}.category-description{background:#f8f9fa;padding:1.5rem;border-radius:8px;margin-bottom:2rem;border-left:4px solid #667eea}.category-description p{color:#4a5568;font-size:1.1rem;line-height:1.6;margin:0}.category-faqs{margin-bottom:3rem}.other-categories{padding-top:2rem;border-top:2px solid #f1f5f9}.other-categories h2{font-size:1.8rem;color:#2d3748;margin-bottom:1.5rem;text-align:center}.faq-detail{background:white;border-radius:12px;padding:2rem;box-shadow:0 4px 20px rgba(0,0,0,0.1)}.breadcrumb{margin-bottom:2rem;font-size:.9rem}.breadcrumb a{color:#667eea;text-decoration:none}.breadcrumb a:hover{text-decoration:underline}.breadcrumb-separator{margin:0 .5rem;color:#a0aec0}.breadcrumb-current{color:#718096;font-weight:500}.faq-category{margin-bottom:1rem}.category-badge{display:inline-block;background:linear-gradient(135deg,#667eea 0,#764ba2 100%);color:white;padding:.5rem 1rem;border-radius:20px;font-size:.85rem;font-weight:500;text-transform:uppercase;letter-spacing:.5px}.faq-header{margin-bottom:2rem;padding-bottom:1rem;border-bottom:2px solid #f1f5f9}.faq-title{font-size:2rem;color:#2d3748;margin-bottom:1rem;line-height:1.3}.back-link{color:#667eea;text-decoration:none;font-weight:500}.back-link:hover{text-decoration:underline}.faq-content{margin-bottom:3rem}.faq-answer{font-size:1.1rem;line-height:1.7;color:#4a5568}.faq-answer p{margin-bottom:1rem}.faq-answer p:last-child{margin-bottom:0}.faq-answer ul{margin:1rem 0;padding-left:1.5rem}.faq-answer li{margin-bottom:.5rem;line-height:1.6}.faq-answer li:last-child{margin-bottom:0}.faq-answer strong{font-weight:600;color:#2d3748}.faq-answer a{color:#667eea;text-decoration:none;border-bottom:1px solid transparent;transition:border-bottom-color .3s}.faq-answer a:hover{border-bottom-color:#667eea}.faq-warning{margin-top:2rem;padding:1rem;background-color:#fff3cd;border:1px solid #ffeaa7;border-radius:8px;border-left:4px solid #f39c12}.warning-content{color:#856404;font-size:.95rem;line-height:1.5;display:flex;align-items:center}.warning-icon{font-size:1.5rem;margin-right:.75rem;flex-shrink:0}.related-faqs{margin-bottom:3rem;padding-top:2rem;border-top:2px solid #f1f5f9}.related-faqs h2{font-size:1.5rem;color:#2d3748;margin-bottom:1.5rem}.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1rem}.related-card{background:#f8f9fa;padding:1.5rem;border-radius:8px;transition:background-color .3s}.related-card:hover{background:#e2e8f0}.related-question{margin-bottom:.5rem}.related-link{color:#2d3748;text-decoration:none;font-weight:600;transition:color .3s}.related-link:hover{color:#667eea}.related-answer-preview{color:#718096;font-size:.9rem}.popular-faqs-section{padding-top:2rem;border-top:2px solid #f1f5f9}.popular-faqs-container{text-align:center}.popular-faqs-btn{display:inline-block;background:linear-gradient(135deg,#667eea 0,#764ba2 100%);color:white;padding:1rem 2rem;border-radius:50px;text-decoration:none;font-weight:600;transition:transform .3s,box-shadow .3s}.popular-faqs-btn:hover{transform:translateY(-2px);box-shadow:0 4px 20px rgba(102,126,234,0.3)}.footer{background:#2d3748;color:white;text-align:center;padding:2rem 0;margin-top:3rem}.footer a{color:#a0aec0;text-decoration:none;transition:color .3s}.footer a:hover{color:#667eea}@media(max-width:768px){.container{padding:0 15px}.nav{flex-direction:column;gap:1rem}.nav-links{gap:1rem}.hero-title{font-size:2rem}.hero-subtitle{font-size:1rem}.categories-grid{grid-template-columns:1fr}.category-card{padding:1.25rem}.category-card .category-header{flex-direction:column;align-items:flex-start;gap:.5rem}.category-detail .category-header .category-title{font-size:2rem}.category-meta{flex-direction:column;align-items:flex-start}.category-description{padding:1rem}.faq-grid{grid-template-columns:1fr}.faq-detail{padding:1.5rem}.faq-title{font-size:1.5rem}.related-grid{grid-template-columns:1fr}.faq-preview-grid{grid-template-columns:1fr}}@media(max-width:480px){.nav{gap:.75rem}.nav-logo{font-size:1.25rem}.hero-title{font-size:1.75rem}.faq-detail{padding:1rem}.faq-title{font-size:1.25rem}}