.tool-header{text-align:center;margin-bottom:32px}.header-badge{display:flex;justify-content:center;gap:12px;margin-bottom:20px;flex-wrap:wrap}.badge{background:linear-gradient(135deg, #667eea, #764ba2);color:white;padding:6px 18px;border-radius:40px;font-size:0.75rem;font-weight:500}.tool-header h1{font-size:2rem;font-weight:700;background:linear-gradient(135deg, #1e293b, #667eea);background-clip:text;-webkit-background-clip:text;color:transparent;margin-bottom:10px}.core-stats{display:flex;justify-content:center;gap:24px;margin-bottom:28px;flex-wrap:wrap}.core-stat{background:white;border-radius:60px;padding:12px 24px;display:flex;align-items:center;gap:14px;box-shadow:0 4px 15px rgba(0,0,0,0.05);border:1px solid var(--gray-200)}.core-stat-icon{width:44px;height:44px;background:linear-gradient(135deg, #e0e7ff, #f0f4ff);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#667eea;font-size:1.2rem}.core-stat-value{font-size:1.3rem;font-weight:700;color:var(--gray-800)}.core-stat-label{font-size:0.7rem;color:var(--gray-500)}.action-bar{display:flex;align-items:center;gap:16px;margin-bottom:24px;flex-wrap:wrap}.divider-line{width:1px;height:30px;background:var(--gray-200)}.export-options{display:flex;gap:12px;margin-left:auto;align-items:center;flex-wrap:wrap}.format-select,.quality-select{padding:8px 16px;border:1px solid var(--gray-300);border-radius:40px;background:white;font-size:0.85rem;cursor:pointer}.btn-success{background:linear-gradient(135deg, #10b981, #059669);color:white;border:none;padding:10px 24px;border-radius:40px;font-weight:500;cursor:pointer;transition:all 0.3s}.btn-success:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px rgba(16,185,129,0.3)}.btn-success:disabled{opacity:0.5;cursor:not-allowed}.btn-outline{background:transparent;border:1px solid var(--gray-300);padding:10px 24px;border-radius:40px;font-weight:500;cursor:pointer;transition:all 0.3s}.btn-outline:hover{background:var(--gray-100);border-color:#667eea;color:#667eea}.video-list-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:8px;border-bottom:1px solid var(--gray-200);font-weight:500}.list-hint{font-size:0.7rem;color:var(--gray-400);font-weight:normal}.video-list{background:var(--gray-50);border-radius:20px;min-height:200px;max-height:350px;overflow-y:auto;margin-bottom:24px;border:1px solid var(--gray-200)}.empty-state{text-align:center;padding:50px 20px;color:var(--gray-400)}.empty-state i{font-size:3rem;margin-bottom:12px}.video-item{display:flex;align-items:center;gap:16px;padding:12px 20px;background:white;border-bottom:1px solid var(--gray-100);cursor:move;transition:all 0.2s}.video-item:hover{background:var(--gray-50)}.drag-handle{cursor:grab;color:var(--gray-400)}.video-thumb{width:50px;height:38px;background:#1a1a2e;border-radius:8px;display:flex;align-items:center;justify-content:center;color:white}.video-info{flex:1}.video-name{font-weight:500;font-size:0.85rem;margin-bottom:4px;display:block}.video-meta{font-size:0.7rem;color:var(--gray-400)}.video-actions{display:flex;gap:8px}.video-actions button{background:transparent;border:none;padding:6px 10px;border-radius:30px;cursor:pointer;color:var(--gray-500);transition:all 0.2s}.video-actions button:hover{background:var(--gray-100);color:#667eea}.transition-section{background:var(--gray-50);border-radius:20px;padding:16px 20px;margin-bottom:24px}.section-header{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-weight:600}.transition-options{display:flex;gap:24px;flex-wrap:wrap}.setting-item label{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:0.85rem}.setting-item select{padding:4px 12px;border:1px solid var(--gray-300);border-radius:20px;background:white;font-size:0.8rem}.preview-section{background:var(--gray-50);border-radius:20px;padding:16px 20px;margin-bottom:24px}.preview-hint{font-size:0.7rem;font-weight:normal;color:var(--gray-400);margin-left:auto}.preview-container{background:#1a1a2e;border-radius:16px;min-height:250px;display:flex;align-items:center;justify-content:center;margin:16px 0}.preview-video{width:100%;max-height:300px;border-radius:12px;display:none}.preview-placeholder{text-align:center;color:var(--gray-500);padding:50px}.preview-placeholder i{font-size:3rem;margin-bottom:12px}.preview-info{text-align:center;font-size:0.8rem;color:var(--gray-500);display:flex;justify-content:center;gap:20px}.progress-area{background:white;border-radius:20px;padding:24px;margin-top:20px;border:1px solid var(--gray-200)}.progress-header{display:flex;justify-content:space-between;margin-bottom:12px;font-weight:500}.progress-bar{height:8px;background:var(--gray-200);border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg, #667eea, #764ba2);width:0%;transition:width 0.3s}.progress-status{text-align:center;margin-top:12px;font-size:0.75rem;color:var(--gray-500)}.progress-detail{text-align:center;margin-top:8px;font-size:0.7rem;color:var(--gray-400)}.complete-area{text-align:center;padding:30px;background:#f0fdf4;border-radius:20px;margin-top:20px}.complete-icon i{font-size:4rem;color:#10b981}.complete-text{font-size:1.2rem;font-weight:600;margin:16px 0}.complete-info{font-size:0.8rem;color:var(--gray-500);margin-bottom:20px}.complete-area .btn-success,.complete-area .btn-outline{margin:0 8px}@media (max-width:768px){.action-bar{flex-direction:column;align-items:stretch}.divider-line{display:none}.export-options{margin-left:0;justify-content:space-between}.video-item{flex-wrap:wrap}.video-actions{width:100%;justify-content:flex-end}}