*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#111;--panel-bg:#1a1a1a;--border:#333;--accent:#7c6af7;--accent-hover:#9b8dff;--text:#e0e0e0;--text-dim:#888;--input-bg:#252525;--panel-w:320px}html,body{background:var(--bg);height:100%;color:var(--text);font-family:Noto Sans SC,system-ui,sans-serif;font-size:14px}#app{height:100vh;display:flex;overflow:hidden}#panel{width:var(--panel-w);min-width:var(--panel-w);background:var(--panel-bg);border-right:1px solid var(--border);flex-direction:column;gap:0;padding:16px;display:flex;overflow-y:auto}#panel h1{color:var(--accent);letter-spacing:.05em;margin-bottom:16px;font-size:16px;font-weight:700}.panel-section{border-bottom:1px solid var(--border);flex-direction:column;gap:8px;padding:12px 0;display:flex}.panel-section:last-child{border-bottom:none}.panel-section>label{color:var(--text-dim);text-transform:uppercase;letter-spacing:.08em;font-size:12px}.row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.row input[type=text]{flex:1;min-width:0}.row label{color:var(--text-dim);white-space:nowrap;font-size:12px}textarea,input[type=text],select{background:var(--input-bg);border:1px solid var(--border);color:var(--text);border-radius:6px;outline:none;width:100%;padding:6px 10px;font-family:inherit;font-size:13px;transition:border-color .15s}textarea:focus,input[type=text]:focus,select:focus{border-color:var(--accent)}textarea{resize:vertical;min-height:120px}input[type=color]{border:1px solid var(--border);background:var(--input-bg);cursor:pointer;border-radius:4px;width:36px;height:28px;padding:2px}input[type=range]{accent-color:var(--accent);flex:1}button{background:var(--input-bg);border:1px solid var(--border);color:var(--text);cursor:pointer;white-space:nowrap;border-radius:6px;padding:6px 12px;font-family:inherit;font-size:13px;transition:background .15s,border-color .15s}button:hover{background:#2e2e2e;border-color:#555}button.primary{background:var(--accent);border-color:var(--accent);color:#fff;width:100%;padding:10px;font-weight:600}button.primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.tab-bar{background:var(--bg);border-radius:6px;gap:4px;padding:3px;display:flex}.tab-bar .tab{color:var(--text-dim);cursor:pointer;background:0 0;border:none;border-radius:4px;flex:1;padding:5px 8px;font-size:12px;font-weight:500;transition:background .15s,color .15s}.tab-bar .tab:hover{color:var(--text);background:#2a2a2a}.tab-bar .tab.active{background:var(--accent);color:#fff}#bg-img-adjusts{flex-direction:column;gap:6px;margin-top:8px;display:flex}#bg-img-adjusts .row label{flex-shrink:0;width:44px}#preview-area{background:#0a0a0a;flex-direction:column;flex:1;display:flex;overflow:hidden}#canvas-wrap{flex:1;justify-content:center;align-items:center;padding:16px;display:flex;overflow:hidden}#main-canvas{object-fit:contain;border-radius:4px;max-width:100%;max-height:100%;box-shadow:0 4px 32px #0009}#transport{background:var(--panel-bg);border-top:1px solid var(--border);align-items:center;gap:10px;padding:10px 16px;display:flex}#seek-bar{accent-color:var(--accent);flex:1}#time-display{color:var(--text-dim);white-space:nowrap;text-align:right;min-width:100px;font-size:12px}#export-progress{align-items:center;gap:8px;display:flex}#export-progress[hidden]{display:none}#export-bar{accent-color:var(--accent);flex:1}progress{border-radius:3px;width:100%;height:6px}#export-cancel-btn{color:#e74c3c;border-color:#c0392b;flex-shrink:0;padding:4px 10px;font-size:12px}#export-cancel-btn:hover{background:#2a1515;border-color:#e74c3c}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#444;border-radius:3px}#bg-img-preview-wrap{border:1px solid var(--border);border-radius:6px;margin-top:4px;overflow:hidden}#bg-img-preview{object-fit:cover;width:100%;max-height:120px;display:block}#audio-info{color:var(--text-dim);white-space:nowrap;text-overflow:ellipsis;font-size:12px;overflow:hidden}.checkbox-label{cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:6px;font-size:13px;display:flex}.checkbox-label input[type=checkbox]{width:14px;height:14px;accent-color:var(--accent);cursor:pointer}#right-panel{background:var(--panel-bg);border-left:1px solid var(--border);flex-direction:column;width:300px;min-width:300px;max-width:600px;display:flex;position:relative;overflow:hidden}#right-panel-resize{cursor:col-resize;z-index:10;width:5px;transition:background .15s;position:absolute;top:0;bottom:0;left:0}#right-panel-resize:hover,#right-panel-resize.is-resizing{background:var(--accent);opacity:.5}#right-panel-header{border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:center;padding:16px 14px 10px;display:flex}.right-panel-title{color:var(--accent);letter-spacing:.05em;font-size:13px;font-weight:700}#export-mov-note{color:var(--text-dim);font-size:12px}.le-clear-btn{color:var(--text-dim);border-color:var(--border);padding:3px 8px;font-size:11px}.le-clear-btn:hover{color:#e74c3c;background:#1e1010;border-color:#e74c3c}#line-editor-list{flex-direction:column;flex:1;gap:4px;min-height:0;padding:10px 12px 16px;display:flex;overflow-y:auto}.le-item{border:1px solid var(--border);border-radius:6px;flex-shrink:0;overflow:hidden}.le-item--modified{border-color:var(--accent)}.le-header{cursor:pointer;background:var(--input-bg);-webkit-user-select:none;user-select:none;align-items:center;gap:6px;padding:7px 10px;display:flex}.le-header:hover{background:#2a2a2a}.le-dot{border:1px solid var(--text-dim);background:0 0;border-radius:50%;flex-shrink:0;width:6px;height:6px}.le-dot--on{background:var(--accent);border-color:var(--accent)}.le-time{color:var(--text-dim);font-variant-numeric:tabular-nums;flex-shrink:0;font-size:11px}.le-text{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;font-size:12px;overflow:hidden}.le-toggle-btn{color:var(--text-dim);background:0 0;border:none;flex-shrink:0;padding:1px 6px;font-size:10px}.le-toggle-btn:hover{color:var(--text);background:0 0}.le-panel{border-top:1px solid var(--border);background:#141414;flex-direction:column;gap:10px;padding:10px;display:flex}.le-section{flex-direction:column;gap:5px;display:flex}.le-section-title{color:var(--text-dim);text-transform:uppercase;letter-spacing:.07em;padding-bottom:2px;font-size:11px}.le-row{align-items:center;gap:6px;display:flex}.le-label{color:var(--text-dim);flex-shrink:0;min-width:44px;font-size:11px}.le-slider{accent-color:var(--accent);flex:1;min-width:0}.le-num{background:var(--input-bg);border:1px solid var(--border);width:56px;color:var(--text);text-align:right;-moz-appearance:textfield;border-radius:4px;outline:none;flex-shrink:0;padding:3px 6px;font-family:inherit;font-size:12px}.le-num:focus{border-color:var(--accent)}.le-num::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.le-num::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.le-unit{color:var(--text-dim);flex-shrink:0;width:14px;font-size:11px}.le-effect-group{flex-direction:column;gap:2px;display:flex}.le-effect-params{border-left:2px solid var(--border);flex-direction:column;gap:4px;margin-top:2px;margin-bottom:2px;margin-left:4px;padding-left:12px;display:flex}.le-align-group{gap:3px;display:flex}.le-align-btn{border-radius:4px;padding:3px 10px;font-size:12px}.le-align-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}.le-select{background:var(--input-bg);border:1px solid var(--border);color:var(--text);border-radius:4px;outline:none;flex:1;width:100%;padding:4px 6px;font-family:inherit;font-size:12px}.le-select:focus{border-color:var(--accent)}.le-actions{gap:6px;padding-top:2px;display:flex}.le-apply-btn{background:var(--accent);border-color:var(--accent);color:#fff;flex:1;padding:6px 10px;font-size:12px;font-weight:600}.le-apply-btn:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.le-reset-btn{padding:6px 10px;font-size:12px}.le-reset-btn:disabled{opacity:.4;cursor:not-allowed}.le-item--selected{border-color:#4ec9c0}.le-item--selected .le-header{background:#0f2b2a}.le-item--selected .le-header:hover{background:#1a3a38}