:root{--bg-main: #0c0e14;--bg-panel: #131722;--bg-card: #181d2c;--bg-input: #1e2436;--bg-hover: #262e45;--border-color: #272f48;--border-focus: #4f46e5;--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--accent-cyan: #06b6d4;--accent-indigo: #6366f1;--accent-violet: #8b5cf6;--accent-pink: #ec4899;--accent-emerald: #10b981;--accent-amber: #f59e0b;--accent-gradient: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--shadow-panel: 0 10px 25px -5px rgba(0, 0, 0, .5), 0 8px 10px -6px rgba(0, 0, 0, .5);--shadow-glow: 0 0 20px rgba(99, 102, 241, .35);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", "Courier New", monospace}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-main);color:var(--text-primary);min-height:100vh;display:flex;flex-direction:column;overflow-x:hidden;line-height:1.5;-webkit-font-smoothing:antialiased}.app-header{height:60px;background-color:var(--bg-panel);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;padding:0 24px;z-index:10}.brand{display:flex;align-items:center;gap:12px}.brand-icon{width:32px;height:32px;border-radius:var(--radius-sm);background:var(--accent-gradient);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-glow)}.brand-title{font-size:1.15rem;font-weight:700;letter-spacing:-.02em;background:linear-gradient(90deg,#fff,#94a3b8);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.brand-tag{font-size:.7rem;font-weight:600;padding:2px 8px;border-radius:9999px;background:#6366f126;color:#818cf8;border:1px solid rgba(99,102,241,.3);text-transform:uppercase}.header-actions{display:flex;align-items:center;gap:16px}.app-main{flex:1;display:grid;grid-template-columns:360px 1fr 380px;height:calc(100vh - 60px);overflow:hidden}@media(max-width:1280px){.app-main{grid-template-columns:320px 1fr 340px}}@media(max-width:1024px){.app-main{grid-template-columns:1fr;height:auto;overflow-y:auto}.preview-center{order:-1}}.panel{background-color:var(--bg-panel);border-right:1px solid var(--border-color);display:flex;flex-direction:column;height:100%;overflow-y:auto}.panel-right{border-right:none;border-left:1px solid var(--border-color)}.panel-header{padding:16px 20px;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between}.panel-title{font-size:.95rem;font-weight:600;color:var(--text-primary);display:flex;align-items:center;gap:8px}.panel-content{padding:20px;display:flex;flex-direction:column;gap:20px;flex:1}.section-group{display:flex;flex-direction:column;gap:10px}.section-label{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted)}.preset-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.preset-card{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:12px;cursor:pointer;transition:all .2s ease;display:flex;flex-direction:column;gap:6px;text-align:left}.preset-card:hover{background-color:var(--bg-hover);border-color:#6366f166}.preset-card.active{background-color:#6366f11f;border-color:var(--accent-indigo);box-shadow:0 0 12px #6366f133}.preset-card-title{font-size:.85rem;font-weight:600;color:var(--text-primary)}.preset-card-desc{font-size:.72rem;color:var(--text-secondary);line-height:1.3}.control-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.control-label{font-size:.85rem;color:var(--text-secondary)}.control-value{font-family:var(--font-mono);font-size:.85rem;color:var(--accent-cyan)}.input-select{width:100%;background-color:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-primary);padding:8px 12px;font-size:.85rem;outline:none;cursor:pointer;transition:border-color .2s}.input-select:focus{border-color:var(--accent-indigo)}.input-range{width:100%;height:6px;border-radius:3px;background:var(--bg-input);outline:none;-webkit-appearance:none;cursor:pointer}.input-range::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--accent-indigo);border:2px solid #ffffff;cursor:pointer;box-shadow:0 0 6px #00000080;transition:transform .1s}.input-range::-webkit-slider-thumb:hover{transform:scale(1.15)}.color-picker-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.color-input-wrapper{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:8px 10px;display:flex;align-items:center;justify-content:space-between}.color-input-wrapper span{font-size:.8rem;color:var(--text-secondary)}.color-dot-input{width:26px;height:26px;border-radius:50%;border:2px solid var(--border-color);cursor:pointer;outline:none;background:none;padding:0;overflow:hidden}.color-dot-input::-webkit-color-swatch-wrapper{padding:0}.color-dot-input::-webkit-color-swatch{border:none;border-radius:50%}.preview-center{display:flex;flex-direction:column;background-color:var(--bg-main);position:relative;overflow-y:auto;overflow-x:hidden}.preview-toolbar{height:44px;background-color:var(--bg-panel);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;padding:0 18px;flex-shrink:0}.bg-mode-selector{display:flex;align-items:center;gap:4px;background-color:var(--bg-card);padding:3px;border-radius:var(--radius-sm);border:1px solid var(--border-color)}.bg-btn{background:none;border:none;color:var(--text-secondary);font-size:.78rem;padding:4px 10px;border-radius:4px;cursor:pointer;transition:all .15s}.bg-btn:hover{color:var(--text-primary)}.bg-btn.active{background-color:var(--bg-input);color:var(--accent-cyan);font-weight:600}.canvas-viewport{flex:0 0 auto;display:flex;align-items:flex-start;justify-content:center;padding:14px 20px 8px;position:relative;overflow:visible}.canvas-container{position:relative;box-shadow:0 16px 36px -12px #000000b3;border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--border-color);max-width:100%;display:flex;align-items:center;justify-content:center;background-color:#000}#previewCanvas{display:block;max-width:100%;max-height:min(calc(100vh - 250px),640px);aspect-ratio:16 / 9;object-fit:contain}.timeline-bar{background-color:var(--bg-panel);border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color);padding:10px 20px 12px;display:flex;flex-direction:column;gap:10px;flex-shrink:0}.scrubber-container{position:relative;width:100%;height:38px;background-color:var(--bg-card);border-radius:var(--radius-sm);border:1px solid var(--border-color);display:flex;align-items:center;cursor:pointer;overflow:hidden}#coverageCanvas{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;opacity:.6}.scrubber-progress{position:absolute;top:0;left:0;height:100%;background:#6366f133;border-right:2px solid var(--accent-indigo);pointer-events:none;transition:width .05s linear}.cutpoint-marker{position:absolute;top:0;width:2px;height:100%;background-color:var(--accent-amber);box-shadow:0 0 8px var(--accent-amber);pointer-events:none;z-index:2}.cutpoint-marker:after{content:"CUT";position:absolute;bottom:2px;left:50%;transform:translate(-50%);background-color:var(--accent-amber);color:#000;font-size:.6rem;font-weight:800;padding:1px 4px;border-radius:2px;line-height:1}.timeline-controls{display:flex;align-items:center;justify-content:space-between}.playback-buttons{display:flex;align-items:center;gap:8px}.btn-icon{background-color:var(--bg-card);border:1px solid var(--border-color);color:var(--text-primary);width:36px;height:36px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .15s}.btn-icon:hover{background-color:var(--bg-hover);border-color:var(--accent-indigo)}.btn-icon.play-btn{background:var(--accent-gradient);border:none;width:42px;height:42px;border-radius:50%;box-shadow:var(--shadow-glow)}.btn-icon.play-btn:hover{transform:scale(1.05)}.time-counter{display:flex;align-items:center;gap:12px;font-family:var(--font-mono);font-size:.9rem}.current-time{color:var(--text-primary);font-weight:600}.total-time{color:var(--text-muted)}.frame-badge{background-color:var(--bg-card);border:1px solid var(--border-color);padding:3px 8px;border-radius:4px;font-size:.75rem;color:var(--accent-cyan)}.obs-info-card{background-color:var(--bg-card);border:1px solid rgba(245,158,11,.3);border-radius:var(--radius-md);padding:16px;display:flex;flex-direction:column;gap:12px;background:linear-gradient(180deg,#f59e0b0d,#181d2ccc)}.obs-card-header{display:flex;align-items:center;justify-content:space-between}.obs-title{font-size:.9rem;font-weight:700;color:var(--accent-amber);display:flex;align-items:center;gap:6px}.obs-table{width:100%;border-collapse:collapse}.obs-table td{padding:6px 0;font-size:.8rem;border-bottom:1px solid rgba(255,255,255,.05)}.obs-table td:first-child{color:var(--text-secondary);width:45%}.obs-table td:last-child{color:var(--text-primary);font-family:var(--font-mono);font-weight:600;text-align:right}.btn-copy{background-color:#f59e0b26;border:1px solid rgba(245,158,11,.4);color:#fbbf24;font-size:.78rem;font-weight:600;padding:6px 12px;border-radius:var(--radius-sm);cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px;transition:all .2s;width:100%}.btn-copy:hover{background-color:#f59e0b40;border-color:#fbbf24}.btn-primary{background:var(--accent-gradient);border:none;color:#fff;font-size:.95rem;font-weight:700;padding:12px 20px;border-radius:var(--radius-md);cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;box-shadow:var(--shadow-glow);transition:all .2s ease;width:100%}.btn-primary:hover{filter:brightness(1.1);transform:translateY(-1px)}.btn-primary:active{transform:translateY(0)}.modal-backdrop{position:fixed;inset:0;background-color:#000000bf;backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:100;opacity:0;pointer-events:none;transition:opacity .2s ease}.modal-backdrop.show{opacity:1;pointer-events:auto}.modal-window{background-color:var(--bg-panel);border:1px solid var(--border-color);border-radius:var(--radius-lg);width:90%;max-width:540px;box-shadow:var(--shadow-panel);display:flex;flex-direction:column;overflow:hidden;transform:scale(.95);transition:transform .2s ease}.modal-backdrop.show .modal-window{transform:scale(1)}.modal-header{padding:18px 24px;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between}.modal-body{padding:24px;display:flex;flex-direction:column;gap:20px}.progress-container{display:flex;flex-direction:column;gap:8px}.progress-bar-bg{height:10px;border-radius:5px;background-color:var(--bg-input);overflow:hidden}.progress-bar-fill{height:100%;width:0%;background:var(--accent-gradient);transition:width .1s linear}.progress-stats{display:flex;align-items:center;justify-content:space-between;font-size:.8rem;color:var(--text-secondary)}.modal-footer{padding:16px 24px;background-color:var(--bg-card);border-top:1px solid var(--border-color);display:flex;align-items:center;justify-content:flex-end;gap:12px}.btn-secondary{background-color:var(--bg-input);border:1px solid var(--border-color);color:var(--text-primary);font-size:.85rem;font-weight:600;text-wrap:nowrap;padding:8px 16px;border-radius:var(--radius-sm);cursor:pointer;transition:background .15s}.btn-secondary:hover{background-color:var(--bg-hover)}.guide-accordion{border:1px solid var(--border-color);border-radius:var(--radius-sm);background-color:var(--bg-card);overflow:hidden}.accordion-summary{padding:10px 14px;font-size:.82rem;font-weight:600;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:space-between;user-select:none}.accordion-summary:hover{color:var(--text-primary)}.accordion-content{padding:12px 14px;font-size:.78rem;color:var(--text-secondary);line-height:1.6;border-top:1px solid var(--border-color);background-color:var(--bg-panel)}.accordion-content ol{padding-left:20px}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%) translateY(100px);background-color:#10b981;color:#fff;padding:10px 20px;border-radius:var(--radius-md);font-size:.85rem;font-weight:600;box-shadow:0 10px 20px #0006;transition:transform .25s cubic-bezier(.175,.885,.32,1.275);z-index:200}.toast.show{transform:translate(-50%) translateY(0)}.custom-upload-box{background:#121216b3;border:1px dashed var(--border-color);border-radius:var(--radius-sm);padding:10px;transition:border-color .2s,background-color .2s}.custom-upload-box:hover{border-color:var(--accent-cyan);background:#06b6d40d}.custom-image-thumb-box{width:38px;height:38px;border-radius:var(--radius-sm);border:1px solid var(--border-color);background:#09090b;overflow:hidden;display:flex;align-items:center;justify-content:center;flex-shrink:0}.custom-image-thumb-box img{max-width:100%;max-height:100%;object-fit:contain}