.guide-section{margin-bottom:40px;padding:25px;background-color:#1e202a;border-radius:8px}.guide-section h3{color:#50a5ff;margin-top:0}.step-card{background-color:#282a36;border-left:4px solid #50a5ff;padding:15px 20px;margin-bottom:15px;border-radius:0 8px 8px 0}.step-card h4{margin-top:0;color:#e4e4e7}.key-point{background-color:rgba(80, 165, 255, 0.1);border-left:3px solid #50a5ff;padding:10px 15px;margin:15px 0}.security-tip{background-color:rgba(245, 158, 11, 0.1);border-left:3px solid #f59e0b;padding:10px 15px;margin:15px 0}.image-container{max-width:100%;margin:20px 0;text-align:center}.image-container img{max-width:100%;border-radius:8px;box-shadow:0 4px 6px rgba(0, 0, 0, 0.1)}.image-caption{font-size:14px;color:#9ca3af;margin-top:8px}.table-of-contents{background-color:#282a36;padding:20px;border-radius:8px;margin-bottom:30px}.table-of-contents h3{margin-top:0;color:#50a5ff}.toc-list{columns:2;-webkit-columns:2;-moz-columns:2}@media (max-width: 768px){.toc-list{columns:1;-webkit-columns:1;-moz-columns:1}}.toc-list li{margin-bottom:8px;break-inside:avoid}.toc-list a{color:#e4e4e7;text-decoration:none}.toc-list a:hover{color:#50a5ff;text-decoration:underline}.checklist li{margin-bottom:10px;position:relative;padding-left:25px}.checklist li:before{content:"✓";position:absolute;left:0;color:#50a5ff;font-weight:bold}