:root{--green: #1ed760;--green-hover: #3be477;--black: #000;--bg: #0f0f0f;--panel: #181818;--panel-raised: #242424;--panel-hover: #2c2c2c;--canvas: #101010;--text: #fff;--text-secondary: #b3b3b3;--text-muted: #7c7c7c;--border: rgba(255, 255, 255, .1);--error: #f3727f;--help-paper: #e8e8e8;color-scheme:dark;font-family:Inter,PingFang SC,Microsoft YaHei,sans-serif;font-synthesis:none}*{box-sizing:border-box}html,body{margin:0;height:100%;overflow:hidden}body{background:var(--bg);color:var(--text)}button,select,input,textarea{font:inherit;letter-spacing:0}button{color:inherit}button:focus-visible,select:focus-visible{outline:2px solid var(--green);outline-offset:2px}[hidden]{display:none!important}#app{display:flex;flex-direction:column;height:100vh;min-height:520px;background:var(--bg)}#app-header{flex:0 0 56px;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:0 16px;background:var(--black);border-bottom:1px solid var(--border)}.header-left,.brand{display:flex;align-items:center;gap:10px;min-width:0}.brand-mark{width:30px;height:30px;display:block;flex:0 0 auto}.brand-name{font-size:18px;font-weight:750}.brand-subtitle{color:var(--text-secondary);font-size:12px;padding-left:2px}.header-actions{display:flex;align-items:center;gap:6px;min-width:0}.header-divider{width:1px;height:22px;background:var(--border);margin:0 4px}.button{height:36px;display:inline-flex;align-items:center;justify-content:center;gap:7px;border:0;border-radius:7px;padding:0 14px;font-size:13px;font-weight:700;cursor:pointer;white-space:nowrap;transition:background .15s ease,color .15s ease,transform .15s ease}.button:hover{transform:translateY(-1px)}.button-primary{background:var(--green);color:#000}.button-primary:hover{background:var(--green-hover)}.button-secondary{background:var(--panel-raised);color:var(--text)}.button-home{background:transparent;color:var(--text-secondary);padding-inline:10px}.button-home:hover{background:var(--panel-hover);color:var(--text)}.button-secondary:hover,.button-quiet:hover{background:var(--panel-hover)}.button-quiet{background:transparent;color:var(--text-secondary);padding-inline:10px}.button-quiet:hover{color:var(--text)}.button-symbol{font-size:14px;line-height:1}.header-tools{display:flex;align-items:center;gap:2px}.button-tool{background:transparent;color:var(--text-secondary);padding-inline:10px;font-weight:650}.button-tool:hover{background:var(--panel-hover);color:var(--text)}.header-more{display:none;font-size:18px}.header-more[aria-expanded=true]{background:var(--panel-hover);color:var(--text)}.tool-more{display:flex;align-items:center}#toolbar .tool-more-toggle{display:inline-flex;align-items:center;gap:4px}#toolbar .tool-more-toggle[aria-expanded=true]{background:var(--panel-raised);color:var(--text)}.tool-more-chevron{font-size:11px;line-height:1;transform:translateY(-2px)}.tool-pop,.header-tools.open{position:fixed;z-index:60;display:flex;flex-direction:column;align-items:stretch;gap:2px;min-width:200px;padding:6px;background:var(--panel);border:1px solid var(--border);border-radius:8px;box-shadow:0 10px 28px #00000080}.tool-pop:not(.open){display:none}#toolbar .tool-pop button,.header-tools.open .button-tool{justify-content:flex-start;text-align:left;width:100%}.tool-pop .toolbar-select-field{justify-content:space-between;gap:10px;padding-left:9px}.tool-pop .toolbar-select-field[hidden]{display:none}.tool-pop .toolbar-select-field>.sr-only{position:static;width:auto;height:auto;margin:0;overflow:visible;clip:auto;color:var(--text-secondary);font-size:12px;font-weight:650}#toolbar{flex:0 0 44px;min-height:44px;display:flex;align-items:center;gap:8px;padding:0 12px;overflow-x:auto;overflow-y:hidden;scrollbar-width:none;background:var(--panel);border-bottom:1px solid var(--border)}#toolbar::-webkit-scrollbar{display:none}@media(min-width:681px){#toolbar{flex:0 0 auto;flex-wrap:wrap;row-gap:4px;padding-block:7px;overflow:visible}}#app.is-starting #toolbar,#app.is-starting #statusbar,#app.is-starting .header-actions{display:none}.statusbar{flex:0 0 28px;display:flex;align-items:center;gap:12px;padding:0 10px 0 14px;background:var(--panel);border-top:1px solid var(--border);color:var(--text-secondary);font-size:12px;min-width:0}.status-text{flex:1 1 auto;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.status-items{flex:0 0 auto;display:flex;align-items:center;gap:10px}.status-sep{width:1px;height:16px;background:var(--border)}.statusbar .tool-group{gap:1px}.statusbar button{height:22px;border:0;border-radius:5px;padding:0 7px;background:transparent;color:var(--text-secondary);font-size:12px;font-weight:650;cursor:pointer;white-space:nowrap}.statusbar button:hover:not(:disabled){background:var(--panel-raised);color:var(--text)}.statusbar button:disabled{color:#555;cursor:not-allowed}.statusbar .icon-button{width:24px;padding:0;font-size:15px}.statusbar #btn-zoom-reset{min-width:48px;font-variant-numeric:tabular-nums}.statusbar .doubt-count{color:#e67700}.status-check{display:inline-flex;align-items:center;gap:5px;cursor:pointer;-webkit-user-select:none;user-select:none}.status-check input{margin:0;accent-color:var(--green);cursor:pointer}.status-check:hover{color:var(--text)}.status-select-field{position:relative;display:inline-flex;align-items:center;gap:6px}.status-select-field[hidden]{display:none}.status-label{color:var(--text-muted);font-size:11px;font-weight:700}.status-select-field select{height:22px;-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--border);border-radius:5px;padding:0 20px 0 8px;background:#0b0b0b;color:var(--text-secondary);font-size:12px;font-weight:650;cursor:pointer}.status-select-field select:hover{border-color:#ffffff38;color:var(--text)}.status-select-field select:focus-visible{border-color:var(--green)}.status-select-field .select-chevron{right:7px;font-size:11px}#app.is-starting #btn-home{display:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.tool-group{display:flex;align-items:center;gap:3px;flex:0 0 auto}.context-tool-group{padding-right:8px;border-right:1px solid var(--border)}.tool-label{margin:0 5px 0 1px;color:var(--text-muted);font-size:10px;font-weight:700}.tool-sep{width:1px;height:16px;background:var(--border);margin:0 4px;flex:0 0 auto}.tool-sep[hidden]{display:none}#toolbar button,#toolbar select{height:30px;border:0;border-radius:6px;padding:0 9px;background:transparent;color:var(--text-secondary);font-size:12px;font-weight:650;cursor:pointer;white-space:nowrap}#toolbar button:hover:not(:disabled),#toolbar select:hover{background:var(--panel-raised);color:var(--text)}#toolbar button:disabled{color:#555;cursor:not-allowed}#toolbar .icon-button{width:30px;padding:0;font-size:17px}#toolbar .icon-text{display:inline-flex;align-items:center;gap:6px;color:var(--text)}#toolbar .playback-button{width:78px;min-width:78px;justify-content:center}#toolbar .playback-button:disabled{color:var(--text-secondary);cursor:wait}.playback-icon{width:14px;height:14px;display:inline-flex;align-items:center;justify-content:center;flex:0 0 14px;font-size:10px;line-height:1}.playback-icon.is-loading{border:2px solid rgba(255,255,255,.18);border-top-color:var(--green);border-radius:50%;animation:spin .75s linear infinite}.playback-icon svg,.playback-stop-icon{width:10px;height:10px;display:block}#toolbar .playback-stop{display:inline-flex;align-items:center;justify-content:center}#toolbar .playback-stop:disabled{color:var(--text-secondary);opacity:.4}.play-progress{--progress: 0%;width:120px;height:4px;margin:0 6px;-moz-appearance:none;appearance:none;-webkit-appearance:none;border-radius:2px;background:linear-gradient(to right,var(--green) var(--progress),rgba(255,255,255,.18) var(--progress));cursor:pointer}.play-progress:disabled{opacity:.4;cursor:default}.play-progress::-webkit-slider-thumb{-webkit-appearance:none;width:12px;height:12px;border-radius:50%;background:var(--text)}.play-progress::-moz-range-thumb{width:12px;height:12px;border:0;border-radius:50%;background:var(--text)}#toolbar .play-time{padding:0 4px;font-variant-numeric:tabular-nums;min-width:78px}#toolbar .sep{width:1px;height:22px;flex:0 0 auto;background:var(--border);margin:0 2px}.toolbar-spacer{flex:1 1 auto;min-width:12px}.mobile-view-switch{display:none}.layout-mode-switch{display:flex;align-items:center;padding:2px;border-radius:6px;background:#0b0b0b}#toolbar .layout-mode-switch button{height:26px;border-radius:4px;padding:0 10px;color:var(--text-muted)}#toolbar .layout-mode-switch button:hover:not(:disabled){color:var(--text)}#toolbar .layout-mode-switch button.active{background:var(--panel-hover);color:var(--text)}.toolbar-select-field{position:relative;display:inline-flex;align-items:center;flex:0 0 auto}#toolbar .toolbar-select-field select{min-width:108px;height:30px;-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--border);border-radius:6px;padding:0 28px 0 10px;background:#0b0b0b;color:var(--text-secondary);font-size:12px;font-weight:650;cursor:pointer}#toolbar .toolbar-select-field select:hover{border-color:#ffffff38;color:var(--text)}#toolbar .toolbar-select-field select:focus-visible{border-color:var(--green)}.select-chevron{position:absolute;right:9px;top:50%;color:var(--text-muted);font-size:13px;line-height:1;pointer-events:none;transform:translateY(-58%)}.toolbar-select-field:hover .select-chevron{color:var(--text-secondary)}#body{flex:1 1 auto;min-height:0;position:relative;display:flex;background:var(--canvas)}.workspace-pane{min-width:0;min-height:0;display:flex;flex-direction:column}#code-pane-shell{flex:0 0 38%;border-right:1px solid var(--border);background:var(--panel)}#body.no-code #code-pane-shell{display:none!important}#body.no-code #score-pane-shell{display:flex!important}#score-pane-shell{position:relative;flex:1 1 auto;background:var(--canvas)}.pane-heading{flex:0 0 34px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 12px;border-bottom:1px solid var(--border);background:#151515;color:var(--text-secondary);font-size:11px;font-weight:700}.pane-heading>span:first-child{white-space:nowrap}.pane-meta{color:var(--text-muted);font-size:9px}.pane-select-field{position:relative;display:inline-flex;align-items:center}.pane-select-field select{height:22px;-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--border);border-radius:5px;padding:0 20px 0 8px;background:#0b0b0b;color:var(--text-secondary);font-size:11px;font-weight:650;cursor:pointer}.pane-select-field select:hover{border-color:#ffffff38;color:var(--text)}.pane-select-field select:focus-visible{border-color:var(--green)}.pane-select-field .select-chevron{right:7px;font-size:11px}.pane-heading-actions{display:flex;align-items:center;gap:10px}.preview-mode-switch{display:flex;align-items:center;padding:2px;border-radius:6px;background:#0b0b0b}.preview-mode-switch button{height:24px;min-width:54px;border:0;border-radius:4px;padding:0 10px;background:transparent;color:var(--text-muted);font-size:11px;font-weight:700;cursor:pointer}.preview-mode-switch button:hover{color:var(--text)}.preview-mode-switch button.active{background:var(--panel-hover);color:var(--text)}.preview-mode-switch button:disabled{color:#555;cursor:not-allowed}#code-pane{flex:1 1 auto;min-height:0;overflow:auto;background:var(--panel)}#start-screen{position:absolute;top:0;right:0;bottom:0;left:0;z-index:40;display:grid;place-items:center;overflow:auto;padding:28px;background:linear-gradient(180deg,rgba(30,215,96,.07),transparent 38%),var(--bg)}.start-content{width:min(900px,100%)}.start-heading{margin-bottom:28px}.eyebrow{display:block;margin-bottom:8px;color:var(--green);font-size:11px;font-weight:800}.start-heading h1{margin:0;font-size:32px;line-height:1.15;font-weight:780}.start-heading p{margin:10px 0 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0;background:transparent;color:var(--text-secondary);font-size:12px;font-weight:700;cursor:pointer}.sample-link:hover{color:var(--text);border-color:var(--text)}#recognition-progress{position:absolute;top:0;right:0;bottom:0;left:0;z-index:60;display:grid;place-items:center;padding:24px;background:#0a0a0ae0;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.recognition-progress-card{display:flex;align-items:center;gap:14px;width:min(360px,calc(100% - 32px));padding:18px;border:1px solid var(--border);border-radius:8px;background:#181818f5;box-shadow:0 16px 48px #0000008c}#recognition-progress strong,#recognition-progress span{display:block}#recognition-progress strong{margin-bottom:4px;font-size:13px}#recognition-progress div>span{color:var(--text-secondary);font-size:11px}.progress-spinner{width:28px;height:28px;flex:0 0 auto;border:3px solid rgba(255,255,255,.14);border-top-color:var(--green);border-radius:50%;animation:spin .8s linear infinite}@keyframes 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