body.ui-style-5{background-color:#1a1a1a;color:#e0e0e0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Roboto","Helvetica Neue",Arial,sans-serif;}header{background:linear-gradient(135deg,#0d0d0d 0%,#2a2a2a 100%);padding:1.5rem 2rem;box-shadow:0 4px 12px rgba(0,0,0,0.5);}.logo{font-size:1.8rem;font-weight:700;color:#ff6b6b;margin-bottom:1rem;text-shadow:2px 2px 4px rgba(0,0,0,0.8);}nav{display:flex;flex-wrap:nowrap;justify-content:space-between;align-items:center;gap:1rem;background-color:rgba(13,13,13,0.9);border-bottom:2px solid #ff6b6b;padding:1rem;}nav a{flex:1 1 0;min-width:0;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#fff;padding:0.75rem 0.5rem;transition:all 0.3s ease;border-radius:4px;}nav a:hover{background-color:#ff6b6b;text-decoration:none;transform:translateY(-2px);}@media (max-width:768px){nav{padding:0.75rem 0.5rem;}nav a{padding:0.5rem 0.25rem;font-size:0.85rem;}}main{max-width:1400px;margin:0 auto;padding:2rem;}.breadcrumb{font-size:0.9rem;color:#999;margin-bottom:1.5rem;padding:0.75rem 1rem;background-color:rgba(255,255,255,0.05);border-radius:4px;}.breadcrumb a{color:#ff6b6b;}.breadcrumb span{margin:0 0.5rem;}h1{font-size:2.5rem;margin-bottom:1.5rem;color:#fff;text-shadow:2px 2px 8px rgba(255,107,107,0.3);}h2{font-size:1.8rem;margin:2rem 0 1rem;color:#ff6b6b;border-left:4px solid #ff6b6b;padding-left:1rem;}p{line-height:1.8;margin-bottom:1rem;}section{margin-bottom:3rem;padding:2rem;background-color:rgba(255,255,255,0.03);border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,0.3);}.intro-section{background:linear-gradient(135deg,rgba(255,107,107,0.1) 0%,rgba(255,107,107,0.05) 100%);border:1px solid rgba(255,107,107,0.2);}.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem;margin-top:2rem;}@media (max-width:768px){.video-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:1rem;}}.video-card{background-color:#252525;border-radius:8px;padding:1.5rem;transition:all 0.3s ease;border:1px solid #333;}.video-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(255,107,107,0.2);border-color:#ff6b6b;}.video-card h3{font-size:1.2rem;margin-bottom:0.75rem;color:#fff;}.video-card h3 a{color:#fff;transition:color 0.3s ease;}.video-card h3 a:hover{color:#ff6b6b;text-decoration:none;}.video-meta{font-size:0.85rem;color:#999;margin-bottom:0.75rem;}.video-tags{display:flex;flex-wrap:wrap;gap:0.5rem;margin-bottom:0.75rem;}.tag{background-color:rgba(255,107,107,0.2);color:#ff6b6b;padding:0.25rem 0.75rem;border-radius:12px;font-size:0.8rem;}.video-desc{font-size:0.9rem;color:#ccc;line-height:1.6;}.detail-info{background-color:rgba(255,255,255,0.05);padding:2rem;border-radius:8px;margin-bottom:2rem;}.detail-info p{margin-bottom:0.75rem;}.detail-info strong{color:#ff6b6b;margin-right:0.5rem;}.related-section{margin-top:3rem;}.back-to-top{position:fixed;bottom:2rem;right:2rem;width:50px;height:50px;background-color:#ff6b6b;color:#fff;border:none;border-radius:50%;font-size:1.5rem;cursor:pointer;opacity:0;transition:opacity 0.3s ease;box-shadow:0 4px 12px rgba(255,107,107,0.4);z-index:1000;}.back-to-top.visible{opacity:1;}.back-to-top:hover{background-color:#ff5252;transform:scale(1.1);}footer{text-align:center;padding:2rem;background-color:#0d0d0d;color:#666;margin-top:4rem;border-top:2px solid #ff6b6b;}