.usage-page{min-height:100vh;background-color:rgb(248,244,230);padding:20px;display:flex;justify-content:center;align-items:flex-start}.usage-container{max-width:900px;width:100%;background:white;border-radius:15px;padding:40px;box-shadow:0 10px 30px rgba(0,0,0,.1);margin-top:20px}.usage-title{color:#333;text-align:center;margin-bottom:30px;font-size:2.2rem;font-weight:700}.warning-banner{background:#f8f9fa;color:#6c757d;padding:15px;border:1px solid #dee2e6;border-radius:4px;margin-bottom:30px}.warning-icon{font-size:1.5rem;flex-shrink:0}.warning-text{line-height:1.4;font-size:.9rem}.warning-text strong{font-weight:600}.usage-section{margin-bottom:40px}.usage-section h2{color:#444;border-bottom:3px solid #e74c3c;padding-bottom:10px;margin-bottom:25px;font-size:1.6rem;font-weight:600}.cheat-step{margin-bottom:25px;padding:25px;background:#fafafa;border-radius:12px;border-left:4px solid #e74c3c;box-shadow:0 2px 8px rgba(0,0,0,.05)}.cheat-method{margin-bottom:30px}.cheat-method h3{color:#2c3e50;margin-bottom:20px;font-size:1.3rem;font-weight:600;padding:15px 20px;background:linear-gradient(135deg,#3498db,#2980b9);color:white;border-radius:10px;box-shadow:0 3px 10px rgba(52,152,219,.3)}.cheat-step h3,.cheat-step h4{color:#333;margin-bottom:15px;font-size:1.2rem;font-weight:600}.cheat-step h4{font-size:1.1rem;color:#444}.cheat-step p{color:#666;line-height:1.6;margin-bottom:15px}.tip{display:flex;align-items:center;gap:10px;background:#fff3cd;color:#856404;padding:12px 15px;border-radius:8px;border-left:3px solid #ffc107;font-size:.9rem}.tip-icon{font-size:1.1rem;flex-shrink:0}.key-examples{background:#f8f9fa;border:2px solid #e9ecef;border-radius:10px;padding:20px;margin:15px 0}.key-group{display:flex;align-items:center;gap:10px;margin-bottom:15px}.key-group:last-child{margin-bottom:0}.key-type{font-weight:600;color:#495057;min-width:80px;font-size:.9rem}.key-examples kbd{background:#6c757d;color:white;padding:6px 12px;border-radius:4px;font-weight:600;font-family:Courier New,monospace;margin:0 3px;font-size:.85rem;box-shadow:0 2px 4px rgba(0,0,0,.1)}.performance-tips{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));grid-gap:20px;gap:20px}.tip-card{background:#f8f9ff;border:2px solid #e3e7ff;border-radius:12px;padding:20px;transition:transform .2s ease,box-shadow .2s ease}.tip-card:hover{transform:translateY(-2px);box-shadow:0 4px 15px rgba(0,0,0,.1)}.tip-card h3{color:#4a5568;margin-bottom:10px;font-size:1.1rem;font-weight:600;display:flex;align-items:center;gap:8px}.tip-card p{color:#666;line-height:1.5;margin:0;font-size:.95rem}.basic-controls{display:grid;grid-gap:15px;gap:15px;max-width:400px}.control-item{display:flex;align-items:center;padding:15px 20px;background:#f8f9fa;border-radius:10px;gap:20px;border:2px solid #e9ecef}.control-item kbd{background:#495057;color:white;padding:8px 16px;border-radius:6px;font-weight:600;min-width:80px;text-align:center;font-family:Courier New,monospace;box-shadow:0 2px 4px rgba(0,0,0,.2);font-size:.9rem}.control-item span{color:#555;font-weight:500;font-size:.95rem}.cta-section{text-align:center;margin-top:50px;padding-top:30px;border-top:2px solid #eee}.start-button{display:inline-flex;align-items:center;justify-content:center;background-color:#36A2EB;color:white;padding:.5rem 1rem;border-radius:4px;text-decoration:none;font-weight:600;font-size:1rem;border:none;cursor:pointer;transition:all .2s ease;margin-bottom:15px}.start-button:hover{background-color:#2e8fd6;text-decoration:none;color:white}.disclaimer{color:#666;font-size:.85rem;font-style:italic;margin-top:15px;margin-bottom:0}@media (max-width:768px){.usage-container{padding:25px;margin-top:10px}.usage-title{font-size:1.8rem;margin-bottom:25px}.usage-section h2{font-size:1.4rem}.warning-banner{flex-direction:column;text-align:center;gap:10px}.performance-tips{grid-template-columns:1fr;gap:15px}.control-item{flex-direction:column;text-align:center;gap:10px;padding:20px}.control-item kbd{min-width:auto}.start-button{padding:15px 35px;font-size:1rem}.key-group{flex-direction:column;align-items:flex-start;gap:8px}.key-type{min-width:auto}.key-examples{padding:15px}.cheat-method h3{font-size:1.1rem;padding:12px 15px}}