:root{--puxin-bg-canvas: #050B11;--puxin-bg-shell: #071019;--puxin-bg-panel: #0B1721;--puxin-bg-panel-elevated: #0E1D28;--puxin-bg-overlay: rgba(5,13,20,.86);--puxin-border-subtle: #1A2C38;--puxin-border-strong: #285064;--puxin-brand-primary: #18DCCF;--puxin-brand-hover: #38E9DE;--puxin-brand-active: #0FB9AF;--puxin-brand-glow: rgba(24,220,207,.28);--puxin-info: #3E91FF;--puxin-success: #35D18B;--puxin-warning: #FFA344;--puxin-danger: #FF626B;--puxin-text-primary: #F4F7F9;--puxin-text-secondary: #A8B5C0;--puxin-text-muted: #6F7F8B;--puxin-text-inverse: #041014;--puxin-model-white: #E7E9EC;--puxin-model-mid: #C7CCD1;--puxin-model-shadow: #929BA4;--puxin-annotation-cyan: #1FE2D2;--puxin-annotation-orange: #FFAA45;--puxin-knowledge-blue: #3E91FF;--puxin-space-0: 0px;--puxin-space-1: 4px;--puxin-space-2: 8px;--puxin-space-3: 12px;--puxin-space-4: 16px;--puxin-space-5: 20px;--puxin-space-6: 24px;--puxin-space-8: 32px;--puxin-space-10: 40px;--puxin-space-12: 48px;--puxin-space-16: 64px;--puxin-radius-sm: 6px;--puxin-radius-md: 10px;--puxin-radius-lg: 14px;--puxin-radius-xl: 18px;--puxin-radius-pill: 999px;--puxin-stroke-hairline: 1px;--puxin-stroke-default: 1px;--puxin-stroke-focus: 2px;--puxin-stroke-annotation: 3px;--puxin-shadow-panel: 0 8px 28px rgba(0,0,0,.24);--puxin-shadow-floating: 0 14px 40px rgba(0,0,0,.36);--puxin-shadow-brand: 0 0 24px rgba(24,220,207,.2);--puxin-font-sans: Noto Sans SC, PingFang SC, Microsoft YaHei, system-ui, sans-serif;--puxin-font-display-size: 32px;--puxin-font-display-line: 40px;--puxin-font-display-weight: 600;--puxin-font-h1-size: 28px;--puxin-font-h1-line: 36px;--puxin-font-h1-weight: 600;--puxin-font-h2-size: 20px;--puxin-font-h2-line: 28px;--puxin-font-h2-weight: 600;--puxin-font-h3-size: 16px;--puxin-font-h3-line: 24px;--puxin-font-h3-weight: 600;--puxin-font-body-size: 14px;--puxin-font-body-line: 22px;--puxin-font-body-weight: 400;--puxin-font-small-size: 12px;--puxin-font-small-line: 18px;--puxin-font-small-weight: 400;--puxin-font-number-size: 32px;--puxin-font-number-line: 40px;--puxin-font-number-weight: 600;--puxin-motion-fast: .12s;--puxin-motion-normal: .18s;--puxin-motion-drawer: .24s;--puxin-motion-slow: .32s;--puxin-motion-easing: cubic-bezier(.2,.8,.2,1)}@media(prefers-reduced-motion:reduce){:root{--puxin-motion-fast: 0ms;--puxin-motion-normal: .15s;--puxin-motion-drawer: .15s;--puxin-motion-slow: .15s}*,*:before,*:after{animation-iteration-count:1!important}}html,body,#root{height:100%;margin:0}body{background:var(--puxin-bg-canvas);color:var(--puxin-text-primary);font-family:var(--puxin-font-sans);font-size:var(--puxin-font-body-size);line-height:var(--puxin-font-body-line);-webkit-font-smoothing:antialiased}.pux-btn{font-family:var(--puxin-font-sans);font-size:var(--puxin-font-body-size);line-height:var(--puxin-font-body-line);font-weight:600;border-radius:var(--puxin-radius-md);border:var(--puxin-stroke-default) solid 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var(--puxin-brand-primary);outline-offset:2px}.pux-step--current{border-color:var(--puxin-brand-primary);color:var(--puxin-text-primary)}.pux-step--completed{color:var(--puxin-success)}.pux-step--locked{color:var(--puxin-text-muted);cursor:not-allowed}.pux-step__icon{font-size:var(--puxin-font-h3-size)}.pux-step__label{font-size:var(--puxin-font-small-size)}.pux-step__state{font-size:var(--puxin-font-small-size);color:var(--puxin-text-muted)}*,*:before,*:after{box-sizing:border-box}body{margin:0;background:var(--puxin-bg-canvas);color:var(--puxin-text-primary);font-family:var(--puxin-font-sans);font-size:var(--puxin-font-body-size);line-height:var(--puxin-font-body-line)}.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}.skip-link{position:absolute;left:var(--puxin-space-4);top:-64px;z-index:100;background:var(--puxin-brand-primary);color:var(--puxin-text-inverse);padding:var(--puxin-space-2) var(--puxin-space-4);border-radius:var(--puxin-radius-md);font-size:var(--puxin-font-small-size);text-decoration:none;transition:top var(--puxin-motion-fast) var(--puxin-motion-easing)}.skip-link:focus{top:var(--puxin-space-3)}:focus-visible{outline:var(--puxin-stroke-focus) solid var(--puxin-brand-primary);outline-offset:2px}html,body{height:100%}body{overflow:hidden}#root{height:100%;height:100dvh;display:flex;flex-direction:column;min-height:0}header.top{flex:none;display:flex;align-items:center;gap:12px;height:48px;padding:0 12px;background:var(--puxin-bg-shell);border-bottom:1px solid 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auto;display:grid;gap:var(--puxin-space-5)}.app-main{max-width:1400px;flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;width:100%}.app-main-hall{max-width:1536px;padding:16px;gap:0;align-content:start}.app-main-lab{max-width:none;padding:12px;overflow:hidden;gap:0}.app-main-review{grid-template-columns:minmax(0,1fr)}.app-main-field{height:calc(100vh - 48px);height:calc(100dvh - 48px);padding:0;max-width:none;gap:0;grid-template-rows:auto minmax(0,1fr)}.app-main-field>.banner{width:calc(100% - 24px);max-width:430px;margin:12px auto}.app-main-field>.fa{height:100%;min-height:0}.panel{background:var(--puxin-bg-panel);border:1px solid var(--puxin-border-subtle);border-radius:var(--puxin-radius-lg);padding:var(--puxin-space-5)}.panel h2{font-size:var(--puxin-font-h3-size);margin:0 0 var(--puxin-space-2)}.caption{color:var(--puxin-text-muted);font-size:var(--puxin-font-small-size);margin:0 0 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var(--puxin-border-subtle);text-align:left}th{color:var(--puxin-text-secondary);font-weight:600}td.r,th.r{text-align:right;font-variant-numeric:tabular-nums}.chip{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;border-radius:var(--puxin-radius-pill);border:1px solid var(--tone);color:var(--tone);font-size:11px;max-width:100%}.bar-row{display:grid;grid-template-columns:minmax(0,180px) 1fr minmax(0,120px);align-items:center;gap:var(--puxin-space-3);padding:var(--puxin-space-1) 0}.bar-label{font-size:var(--puxin-font-small-size);color:var(--puxin-text-secondary);overflow:hidden;text-overflow:ellipsis}.bar-track{height:8px;background:var(--puxin-bg-canvas);border-radius:var(--puxin-radius-pill);overflow:hidden}.bar-fill{display:block;height:100%;background:var(--tone)}.bar-value{font-size:var(--puxin-font-small-size);text-align:right;color:var(--puxin-text-secondary);font-variant-numeric:tabular-nums}.legend{display:flex;gap:var(--puxin-space-2);flex-wrap:wrap;margin:var(--puxin-space-3) 0 0}.workspace{display:grid;grid-template-columns:290px 1fr 360px;gap:var(--puxin-space-4);align-items:start}.viewport{background:var(--puxin-bg-shell);border:1px solid var(--puxin-border-subtle);border-radius:var(--puxin-radius-lg);padding:var(--puxin-space-3);min-height:420px}.viewport svg{width:100%;height:auto;display:block}.viewport-bar{display:flex;gap:var(--puxin-space-2);margin-bottom:var(--puxin-space-3);flex-wrap:wrap}.stepper ol{list-style:none;display:flex;gap:var(--puxin-space-2);margin:0;padding:0}.step{flex:1;display:grid;gap:2px;justify-items:center;padding:var(--puxin-space-3) var(--puxin-space-2);background:var(--puxin-bg-panel);border:1px solid var(--puxin-border-subtle);border-radius:var(--puxin-radius-md);min-height:44px}.step.current{border-color:var(--puxin-brand-primary)}.step.locked{opacity:.55}.step-icon{font-size:var(--puxin-font-h3-size);color:var(--tone)}.step-label{font-size:var(--puxin-font-small-size)}.step-state{font-size:11px;color:var(--puxin-text-muted);text-align:center}.params{display:grid;gap:var(--puxin-space-4)}.param.is-disabled{opacity:.45}.param-head{display:flex;justify-content:space-between;align-items:baseline;gap:var(--puxin-space-2)}.param-head label{font-size:var(--puxin-font-small-size);color:var(--puxin-text-secondary)}.param-value{font-variant-numeric:tabular-nums}.dirty{color:var(--puxin-warning);font-style:normal;font-size:11px}input[type=range]{width:100%;accent-color:var(--puxin-brand-primary);height:4px}select{width:100%;min-height:40px;background:var(--puxin-bg-canvas);color:var(--puxin-text-primary);border:1px solid var(--puxin-border-subtle);border-radius:var(--puxin-radius-sm);padding:0 var(--puxin-space-2)}.derived{display:grid;grid-template-columns:1fr 1fr;gap:var(--puxin-space-2);margin:0}.derived div{background:var(--puxin-bg-canvas);border-radius:var(--puxin-radius-sm);padding:var(--puxin-space-2)}.derived dt{font-size:11px;color:var(--puxin-text-muted)}.derived dd{margin:2px 0 0;font-variant-numeric:tabular-nums}.tutor{border-left:3px solid var(--tone)}.tutor-status{float:right;font-size:11px;color:var(--puxin-text-muted);font-weight:400}.tutor-observation{margin:var(--puxin-space-2) 0}.tutor-question{color:var(--puxin-brand-primary);margin:var(--puxin-space-2) 0}.evidence{display:flex;flex-wrap:wrap;gap:var(--puxin-space-2);margin:var(--puxin-space-3) 0 0}.evidence-chip{border:1px solid var(--puxin-border-strong);border-radius:var(--puxin-radius-pill);padding:2px 10px;font-size:11px;color:var(--puxin-brand-primary);cursor:pointer}.evidence-chip.broken{color:var(--puxin-text-muted);border-style:dashed;cursor:not-allowed}.tutor-actions{display:flex;gap:var(--puxin-space-2);margin-top:var(--puxin-space-4);flex-wrap:wrap}.btn{min-height:40px;padding:0 var(--puxin-space-4);border-radius:var(--puxin-radius-md);border:1px solid transparent;font-family:inherit;font-size:var(--puxin-font-small-size);cursor:pointer}.btn.primary{background:var(--puxin-brand-primary);color:var(--puxin-text-inverse);font-weight:600}.btn.ghost{background:var(--puxin-bg-panel);color:var(--puxin-brand-primary);border-color:var(--puxin-border-strong)}.hints{margin:var(--puxin-space-3) 0 0;padding-left:var(--puxin-space-5);color:var(--puxin-text-secondary);font-size:var(--puxin-font-small-size)}.attention li{margin-bottom:var(--puxin-space-2)}.banner{background:var(--puxin-bg-panel-elevated);border:1px solid var(--puxin-border-strong);border-radius:var(--puxin-radius-md);padding:var(--puxin-space-3) var(--puxin-space-4);font-size:var(--puxin-font-small-size);color:var(--puxin-text-secondary)}.wb{position:relative;display:grid;grid-template-columns:56px minmax(0,1fr) 320px;gap:12px;align-items:stretch;height:100%;min-height:0;max-width:100%;min-width:0;overflow-x:hidden;overflow-y:hidden}.wb-wide{grid-template-columns:56px minmax(0,1fr) 0}.wb-rail-label{font-size:11px;line-height:1.2;text-align:center;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.wb-lockwhy.done{color:var(--puxin-semantic-success)}.wb-rail-sep{flex:1}.wb-sync{display:grid;justify-items:center;gap:2px;padding:var(--puxin-space-2) 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