:root{--primary: #0E7C6B;--primary-light: #12a089;--primary-dark: #0a5e51;--bg: #f5f7fa;--card: #ffffff;--border: #e5e7eb;--text: #1f2937;--text-secondary: #6b7280;--danger: #ef4444;--warning: #f59e0b;--success: #10b981;--info: #3b82f6;--radius: 8px;--shadow: 0 1px 3px rgba(0, 0, 0, .08);--shadow-lg: 0 4px 12px rgba(0, 0, 0, .1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border:1px solid var(--border);border-radius:var(--radius);background:var(--card);color:var(--text);font-size:14px;cursor:pointer;transition:all .15s;white-space:nowrap}.btn:hover{border-color:var(--primary);color:var(--primary)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover{background:var(--primary-light);color:#fff}.btn-a{background:#1d4ed8;color:#fff;border-color:#1d4ed8}.btn-a:hover{background:#2563eb;color:#fff}.btn-b{background:#7c3aed;color:#fff;border-color:#7c3aed}.btn-b:hover{background:#8b5cf6;color:#fff}.btn-sm{padding:4px 10px;font-size:12px}.toast{position:fixed;top:20px;left:50%;transform:translate(-50%);padding:10px 24px;background:#1f2937;color:#fff;border-radius:var(--radius);font-size:14px;z-index:9999;animation:fadeInDown .2s ease-out}@keyframes fadeInDown{0%{opacity:0;transform:translate(-50%,-10px)}to{opacity:1;transform:translate(-50%)}}.tag{display:inline-block;padding:2px 8px;border-radius:4px;font-size:12px;font-weight:500}.tag-pending{background:#fef3c7;color:#92400e}.tag-running{background:#dbeafe;color:#1e40af}.tag-done{background:#d1fae5;color:#065f46}.tag-failed{background:#fee2e2;color:#991b1b}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0e7c6b,#1d4ed8)}.login-card{background:var(--card);border-radius:12px;padding:48px 40px;width:400px;max-width:90vw;box-shadow:var(--shadow-lg)}.login-header{text-align:center;margin-bottom:32px}.login-header h1{font-size:24px;color:var(--text)}.login-subtitle{color:var(--text-secondary);font-size:14px;margin-top:4px}.login-form label{display:block;font-size:14px;font-weight:500;margin-bottom:6px;color:var(--text)}.login-form input{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:var(--radius);font-size:15px;outline:none;transition:border-color .15s}.login-form input:focus{border-color:var(--primary)}.login-error{color:var(--danger);font-size:13px;margin-top:8px}.login-btn{width:100%;margin-top:16px;padding:12px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius);font-size:16px;cursor:pointer;transition:background .15s}.login-btn:hover{background:var(--primary-light)}.login-btn:disabled{opacity:.6;cursor:not-allowed}.workbench{max-width:1200px;margin:0 auto;padding:0 20px 40px}.wb-header{display:flex;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--border);margin-bottom:24px}.wb-header-left{display:flex;align-items:center;gap:16px}.wb-header h1{font-size:20px;color:var(--text)}.tenant-badge{background:#ecfdf5;color:var(--primary-dark);padding:4px 10px;border-radius:4px;font-size:12px}.wb-header-right{display:flex;align-items:center;gap:16px}.cost-panel{display:flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:8px 16px}.cost-label{font-size:12px;color:var(--text-secondary)}.cost-value{font-size:18px;font-weight:700;color:var(--primary)}.cost-sub{font-size:11px;color:var(--text-secondary)}.btn-logout{padding:6px 14px;border:1px solid var(--border);border-radius:var(--radius);background:transparent;color:var(--text-secondary);font-size:13px;cursor:pointer}.btn-logout:hover{color:var(--danger);border-color:var(--danger)}.wb-input{background:var(--card);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);margin-bottom:24px}.wb-textarea{width:100%;padding:12px;border:1px solid var(--border);border-radius:var(--radius);font-size:15px;resize:vertical;outline:none;font-family:inherit;transition:border-color .15s}.wb-textarea:focus{border-color:var(--primary)}.wb-actions{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}.wb-tasks{background:var(--card);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);margin-bottom:24px}.wb-tasks h2,.wb-videos h2,.wb-metrics h2{font-size:16px;margin-bottom:16px;color:var(--text)}.wb-tasks h3,.wb-videos h3{font-size:14px;margin:16px 0 10px;color:var(--text-secondary)}.active-task{background:#f9fafb;border:1px solid var(--border);border-radius:var(--radius);padding:14px;margin-bottom:16px}.task-header{display:flex;align-items:center;gap:10px;font-size:14px}.task-type{font-size:12px;color:var(--text-secondary)}.progress-bar{height:6px;background:#e5e7eb;border-radius:3px;margin-top:10px;overflow:hidden}.progress-fill{height:100%;background:var(--primary);border-radius:3px;transition:width .3s}.task-error{margin-top:8px;padding:8px;background:#fee2e2;border-radius:4px;font-size:13px;color:#991b1b;display:flex;align-items:center;gap:8px}.task-table{width:100%;border-collapse:collapse;font-size:13px}.task-table th{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border);color:var(--text-secondary);font-weight:500}.task-table td{padding:8px 10px;border-bottom:1px solid #f3f4f6}.task-table tr{cursor:pointer}.task-table tr:hover{background:#f9fafb}.active-row{background:#ecfdf5!important}.wb-videos{background:var(--card);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);margin-bottom:24px}.video-section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}.video-section-header h2{margin-bottom:0}.video-tabs{display:flex;gap:4px}.tab{padding:6px 16px;border:1px solid var(--border);border-radius:var(--radius);background:transparent;color:var(--text-secondary);font-size:13px;cursor:pointer}.tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.strategy-bar{display:flex;align-items:center;gap:8px;padding:12px 0;flex-wrap:wrap;font-size:13px;color:var(--text-secondary)}.strat-btn{padding:4px 12px;border:1px solid var(--border);border-radius:20px;background:transparent;font-size:12px;cursor:pointer;transition:all .15s}.strat-btn.active{background:#7c3aed;color:#fff;border-color:#7c3aed}.strat-btn:hover:not(.active){border-color:#7c3aed;color:#7c3aed}.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin-top:12px}.video-card{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;cursor:pointer;transition:all .15s}.video-card:hover{box-shadow:var(--shadow-lg);border-color:var(--primary)}.video-card.selected{border-color:#7c3aed;box-shadow:0 0 0 2px #7c3aed33}.video-preview{aspect-ratio:16 / 9;background:#111827;display:flex;align-items:center;justify-content:center}.video-preview video{width:100%;height:100%;object-fit:contain}.video-placeholder{color:#6b7280;font-size:13px;padding:20px;text-align:center}.video-info{padding:10px 12px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}.video-title{font-size:13px;color:var(--text);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.video-type-badge{font-size:11px;padding:2px 6px;border-radius:3px;background:#dbeafe;color:#1e40af}.video-strategy{font-size:11px;padding:2px 6px;border-radius:3px;background:#ede9fe;color:#5b21b6}.video-actions{display:flex;gap:6px;margin-left:auto}.empty-state{text-align:center;padding:40px;color:var(--text-secondary);font-size:14px}.pagination{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:16px;font-size:13px}.pagination button{padding:6px 14px;border:1px solid var(--border);border-radius:var(--radius);background:var(--card);cursor:pointer}.pagination button:disabled{opacity:.4;cursor:not-allowed}.wb-metrics{background:var(--card);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.metrics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px}.metric-card{text-align:center;padding:16px;border:1px solid var(--border);border-radius:var(--radius)}.metric-value{display:block;font-size:28px;font-weight:700;color:var(--primary)}.metric-label{display:block;font-size:13px;color:var(--text-secondary);margin-top:4px}.result-videos{margin-top:16px}.btn-export{background:#059669;color:#fff;border-color:#059669}.btn-export:hover{background:#10b981;color:#fff}.progress-section{display:flex;align-items:center;gap:12px;margin-top:10px}.progress-section .progress-bar{flex:1;margin-top:0}.progress-text{font-size:14px;font-weight:600;color:var(--primary);min-width:40px}.task-hint{margin-top:8px;font-size:13px;color:var(--text-secondary)}.task-id{font-family:monospace;font-size:13px;color:var(--text-secondary)}.task-type-badge{font-size:12px;padding:2px 8px;border-radius:4px;background:#ede9fe;color:#5b21b6}.selected-hint{display:flex;align-items:center;gap:8px;padding:8px 12px;background:#ecfdf5;border-radius:var(--radius);font-size:13px;color:var(--primary-dark);margin-top:8px}.btn-text{background:none;border:none;color:var(--primary);cursor:pointer;font-size:12px;text-decoration:underline;padding:0}.video-section-actions{display:flex;align-items:center;gap:12px}.cost-estimate{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-top:10px;padding:8px 14px;background:#fefce8;border:1px solid #fde68a;border-radius:var(--radius);font-size:13px;color:#92400e}.cost-estimate-label{font-weight:600}.cost-estimate strong{color:#b45309}.cost-estimate-sep{color:#d1d5db;margin:0 2px}.cost-estimate-remaining{color:var(--primary);font-weight:500}.cost-over-warn{color:#dc2626;font-weight:700;margin-left:4px}.cost-estimate.cost-over-budget{background:#fef2f2;border-color:#fca5a5}.offline-bar{position:fixed;top:0;left:0;right:0;z-index:1100;background:#dc2626;color:#fff;text-align:center;padding:8px 16px;font-size:14px;font-weight:600}.btn-done{background:#16a34a!important;color:#fff!important;border-color:#16a34a!important;cursor:default}.btn-error{background:#dc2626!important;color:#fff!important;border-color:#dc2626!important}.video-id{font-size:11px;color:#9ca3af;font-family:monospace}.result-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.result-header h3{margin:0}.btn-download-all{background:#ea580c;color:#fff;border-color:#ea580c;font-weight:600}.btn-download-all:hover{background:#f97316;color:#fff}@media (max-width: 640px){.wb-header{flex-direction:column;gap:12px;align-items:flex-start}.wb-actions{flex-direction:column}.btn{justify-content:center}.video-grid{grid-template-columns:1fr}.metrics-grid{grid-template-columns:repeat(2,1fr)}}