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.15s}.nav-item:hover{background:#f0f5ff;color:var(--blue)}.nav-item.active{background:#e8f3ff;color:var(--blue);font-weight:600}.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}.avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--purple));color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600}.workspace{display:flex;height:calc(100vh - 56px)}.param-panel{width:280px;background:#fff;border-right:1px solid var(--border);display:flex;flex-direction:column;overflow-y:auto}.source-bar{display:flex;gap:4px;align-items:center;margin-bottom:8px}.center{flex:1;display:flex;flex-direction:column;overflow:hidden}.top-bar{height:48px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;background:#fff;border-bottom:1px solid var(--border)}.task-title{font-size:14px;font-weight:600;color:var(--text);flex:1 1 auto;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}mjx-container[jax=SVG]>svg{display:inline;vertical-align:baseline}.top-actions{display:flex;gap:8px}.tabs-bar{display:flex;background:#fff;border-bottom:1px solid var(--border);padding:0 2px;gap:0;overflow-x:auto;flex-shrink:0;scrollbar-width:thin}.tabs-bar::-webkit-scrollbar{height:3px}.tabs-bar::-webkit-scrollbar-thumb{background:#ccc;border-radius:2px}.tab-btn{padding:8px 4px;font-size:11px;color:var(--text3);cursor:pointer;border-bottom:2px solid transparent;white-space:nowrap;transition:all .15s;flex-shrink:0;min-width:0}.tab-btn:hover{color:var(--text2)}.tab-btn.active{color:var(--blue);border-bottom-color:var(--blue);font-weight:600}.canvas-area{flex:1;background:var(--bg);padding:12px;display:flex;gap:12px;overflow:hidden}.single-mode{flex:1;display:flex;flex-direction:column;min-height:0}.sim-grid{flex:1;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr 1fr;gap:12px;min-height:0}#view{flex:1;background:#fff;border-radius:10px;box-shadow:0 1px 8px #0000000a;position:relative;min-height:0}.bottom-bar{height:44px;background:#fff;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:center;gap:8px;padding:0 16px}.status-bar{height:26px;background:#fff;border-top:1px solid var(--border);display:flex;align-items:center;padding:0 16px;font-size:11px;color:var(--text3);gap:16px}.status-dot{width:6px;height:6px;border-radius:50%;background:var(--green)}.right-panel{width:320px;background:#fff;border-left:1px solid var(--border);display:flex;flex-direction:column}.right-tabs{display:flex;border-bottom:1px solid var(--border)}.right-tab{flex:1;padding:10px;text-align:center;font-size:12px;cursor:pointer;color:var(--text3);border-bottom:2px solid transparent;transition:all .15s}.right-tab.active{color:var(--blue);border-bottom-color:var(--blue);font-weight:600}.tab-content{display:none;flex:1;overflow-y:auto;flex-direction:column}.tab-content.active{display:flex}.ai-messages{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:10px}.ai-msg{max-width:92%;padding:9px 12px;border-radius:10px;font-size:12px;line-height:1.6;animation:fadeIn .3s}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.ai-msg.bot{background:var(--card);align-self:flex-start;border-bottom-left-radius:4px}.ai-msg.user{background:var(--blue);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}.ai-quick-actions{padding:6px 10px;border-top:1px solid var(--border);display:flex;flex-wrap:wrap;gap:4px}.ai-input-area{padding:10px;border-top:1px solid var(--border);display:flex;gap:6px}.ai-input{flex:1;padding:8px 12px;border:1px solid var(--border);border-radius:20px;font-size:13px;outline:none;resize:none;max-height:60px;font-family:inherit}.ai-input:focus{border-color:var(--blue);box-shadow:0 0 0 2px #165dff1a}.ai-send{width:34px;height:34px;border-radius:50%;background:var(--blue);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:14px}.ai-send:hover{background:#0e42d2}.lang-btn{padding:4px 10px;border:1px solid var(--border);border-radius:6px;background:#fff;color:var(--text2);cursor:pointer;font-size:12px;font-weight:600;transition:all .15s}.lang-btn:hover{border-color:var(--blue);color:var(--blue);background:#f0f5ff}.result-item{padding:8px 12px;background:var(--card);border-radius:6px;margin-bottom:6px;cursor:pointer;transition:all .15s}.result-item:hover{background:#e8f3ff}.sim-cell{background:#fff;border-radius:10px;box-shadow:0 1px 8px #0000000a;overflow:hidden;min-height:0}.sim-cell>div{width:100%;height:100%}.sim-stats{display:flex;align-items:center;justify-content:center}.sim-input{width:100%;padding:4px 8px;border:1px solid var(--border);border-radius:4px;font-size:12px;background:var(--bg);outline:none}.sim-input:focus{border-color:var(--blue);box-shadow:0 0 0 2px #165dff1a}@media (max-width: 1200px){.param-panel{width:240px}.right-panel{width:280px}}