.tool-header{text-align:center;margin-bottom:40px}.header-badge{display:flex;justify-content:center;gap:12px;margin-bottom:24px;flex-wrap:wrap}.badge{background:linear-gradient(135deg, #3b82f6, #1e40af);color:white;padding:6px 18px;border-radius:40px;font-size:0.75rem;font-weight:500;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.tool-header h1{font-size:2.2rem;font-weight:800;background:linear-gradient(135deg, #1e293b, #3b82f6);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}.tool-header p{color:var(--gray-500);font-size:1rem}.core-stats{display:flex;justify-content:center;gap:24px;margin-bottom:32px;flex-wrap:wrap}.core-stat{background:white;border-radius:60px;padding:16px 28px;display:flex;align-items:center;gap:16px;box-shadow:0 4px 15px rgba(0,0,0,0.05);border:1px solid var(--gray-200)}.core-stat-icon{width:48px;height:48px;background:linear-gradient(135deg, #e0e7ff, #f0f4ff);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#3b82f6;font-size:1.3rem}.core-stat-info{text-align:left}.core-stat-value{display:block;font-size:1.2rem;font-weight:700;color:var(--gray-800)}.core-stat-label{font-size:0.7rem;color:var(--gray-500)}.upload-area{background:linear-gradient(135deg, #f8fafc, #fff);border:2px dashed var(--gray-300);border-radius:32px;padding:48px 24px;text-align:center;cursor:pointer;transition:all 0.3s;margin-bottom:24px}.upload-area:hover{border-color:#3b82f6;background:linear-gradient(135deg, #eff6ff, #fff)}.upload-area i{font-size:56px;color:#3b82f6;margin-bottom:16px}.upload-area p{font-size:1rem;margin-bottom:8px;color:var(--gray-700)}.upload-hint{font-size:0.7rem;color:var(--gray-400);display:block;margin-bottom:20px}.editor-container{display:grid;grid-template-columns:1fr 320px;gap:24px;animation:fadeIn 0.3s ease}.video-panel{background:white;border-radius:24px;overflow:hidden;border:1px solid var(--gray-200)}.panel-header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:linear-gradient(135deg, #f8fafc, #fff);border-bottom:1px solid var(--gray-200)}.panel-title{display:flex;align-items:center;gap:10px;font-weight:600;color:var(--gray-700)}.panel-actions{display:flex;gap:8px}.icon-btn-sm{background:transparent;border:none;padding:6px 10px;border-radius:30px;cursor:pointer;transition:all 0.2s;color:var(--gray-500)}.icon-btn-sm:hover{background:var(--gray-100);color:#3b82f6}.video-wrapper{position:relative;background:#000;min-height:300px;display:flex;align-items:center;justify-content:center}.preview-video{width:100%;max-height:400px;object-fit:contain}.crop-canvas{position:absolute;top:0;left:0;width:100%;height:100%;opacity:0.6}.crop-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.5);cursor:crosshair}.crop-box{position:absolute;border:2px solid #3b82f6;box-shadow:0 0 0 9999px rgba(0,0,0,0.5);cursor:move}.crop-handle{position:absolute;width:12px;height:12px;background:white;border:2px solid #3b82f6;border-radius:2px}.handle-nw{top:-6px;left:-6px;cursor:nw-resize}.handle-n{top:-6px;left:50%;transform:translateX(-50%);cursor:n-resize}.handle-ne{top:-6px;right:-6px;cursor:ne-resize}.handle-w{top:50%;left:-6px;transform:translateY(-50%);cursor:w-resize}.handle-e{top:50%;right:-6px;transform:translateY(-50%);cursor:e-resize}.handle-sw{bottom:-6px;left:-6px;cursor:sw-resize}.handle-s{bottom:-6px;left:50%;transform:translateX(-50%);cursor:s-resize}.handle-se{bottom:-6px;right:-6px;cursor:se-resize}.video-controls{padding:12px 16px;background:var(--gray-50);border-top:1px solid var(--gray-200)}.progress-bar{height:4px;background:var(--gray-200);border-radius:2px;overflow:hidden;cursor:pointer;margin-bottom:8px}.progress-fill{height:100%;background:#3b82f6;width:0%;transition:width 0.1s}.time-info{text-align:center;font-size:0.7rem;color:var(--gray-500)}.controls-panel{background:white;border-radius:24px;padding:20px;border:1px solid var(--gray-200)}.control-group{margin-bottom:24px}.control-group label{display:block;font-size:0.75rem;font-weight:600;color:var(--gray-500);margin-bottom:12px}.ratio-buttons{display:flex;flex-wrap:wrap;gap:8px}.ratio-btn{background:var(--gray-100);border:1px solid var(--gray-200);padding:6px 14px;border-radius:30px;font-size:0.7rem;cursor:pointer;transition:all 0.2s}.ratio-btn.active{background:#3b82f6;border-color:#3b82f6;color:white}.slider-group{margin-bottom:12px}.slider-group span{display:block;font-size:0.7rem;color:var(--gray-600);margin-bottom:6px}.slider-group input{width:100%}.output-options{display:flex;gap:12px}.select-input{flex:1;padding:8px 12px;border:1px solid var(--gray-300);border-radius:12px;font-size:0.8rem;background:white}.action-buttons{display:flex;gap:12px;margin:20px 0}.btn-primary{flex:1;background:linear-gradient(135deg, #3b82f6, #1e40af);border:none;padding:12px;border-radius:40px;color:white;font-weight:600;cursor:pointer;transition:all 0.3s}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(59,130,246,0.3)}.btn-success{flex:1;background:linear-gradient(135deg, #10b981, #047857);border:none;padding:12px;border-radius:40px;color:white;font-weight:600;cursor:pointer;transition:all 0.3s}.btn-success:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px rgba(16,185,129,0.3)}.btn-success:disabled{opacity:0.5;cursor:not-allowed}.info-tips{background:var(--gray-50);border-radius:16px;padding:16px;margin-top:16px}.tip-item{display:flex;align-items:center;gap:10px;font-size:0.7rem;color:var(--gray-600);margin-bottom:10px}.tip-item i{color:#3b82f6;width:20px}.processing-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.7);display:flex;align-items:center;justify-content:center;z-index:1000}.processing-card{background:white;border-radius:32px;padding:40px;text-align:center;min-width:300px}.processing-spinner{width:60px;height:60px;border:4px solid var(--gray-200);border-top-color:#3b82f6;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 20px}.processing-bar{height:6px;background:var(--gray-200);border-radius:3px;overflow:hidden;margin:20px 0 10px}.processing-fill{height:100%;background:#3b82f6;width:0%;transition:width 0.3s}@keyframes spin{to{transform:rotate(360deg)}}.info-footer{margin-top:32px;background:var(--gray-50);border-radius:28px;padding:24px}.info-footer-header{display:flex;align-items:center;gap:10px;margin-bottom:20px;font-weight:600;color:var(--gray-700)}.info-footer-steps{display:grid;grid-template-columns:repeat(4, 1fr);gap:20px}.step-item{display:flex;gap:14px;align-items:flex-start}.step-number{width:36px;height:36px;background:#3b82f6;color:white;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}.step-content h4{font-size:0.9rem;margin-bottom:4px}.step-content p{font-size:0.75rem;color:var(--gray-500)}@media (max-width:900px){.editor-container{grid-template-columns:1fr}.ratio-buttons{justify-content:center}.info-footer-steps{grid-template-columns:repeat(2, 1fr)}}@media (max-width:480px){.info-footer-steps{grid-template-columns:1fr}.action-buttons{flex-direction:column}.core-stats{gap:12px}.core-stat{padding:12px 20px}}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}