*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;overflow:hidden;background:#000;color:#fff}.app-container{position:relative;width:100vw;height:100vh;transition:opacity .5s ease-in-out}.three-container{position:absolute;top:0;left:0;width:100%;height:100%;background:radial-gradient(ellipse at center,#012,#000)}.three-container canvas{display:block;outline:none}.loading-screen{position:fixed;top:0;left:0;width:100vw;height:100vh;background:linear-gradient(135deg,#0a0a0a,#1a1a2e 30%,#16213e 70%,#0f0f0f);z-index:9999;transition:opacity 1s ease-out}.loading-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,#0a0a0a,#1a1a2e 30%,#16213e 70%,#0f0f0f);display:flex;align-items:center;justify-content:center}.loading-content{text-align:center;max-width:500px;padding:2rem;animation:fadeInUp 1s ease-out}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.loading-header{margin-bottom:3rem}.loading-title{font-size:2.2rem;font-weight:700;margin-bottom:.5rem;background:linear-gradient(45deg,#4a9eff,#00d4ff,#4a9eff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;background-size:200% auto;animation:shimmer 3s ease-in-out infinite}.universe-icon{font-size:2.5rem;margin-right:.5rem;display:inline-block;animation:rotate 8s linear infinite}@keyframes rotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes shimmer{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.loading-subtitle{font-size:1.1rem;color:#b0b0b0;font-weight:400}.loading-progress-area{display:flex;align-items:center;gap:2rem;margin-bottom:3rem}.progress-ring-container{position:relative;display:flex;align-items:center;justify-content:center}.progress-ring{transform:rotate(-90deg)}.progress-ring-background{stroke-dasharray:339.292;stroke-dashoffset:0;transition:stroke-dashoffset .3s ease}.progress-ring-fill{stroke-dasharray:339.292;stroke-dashoffset:339.292;transition:stroke-dashoffset .3s ease}.progress-percentage{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:1.2rem;font-weight:600;color:#4caf50}.progress-info{flex:1}.progress-status{font-size:1.1rem;font-weight:500;color:#fff;margin-bottom:.5rem}.progress-details{font-size:.9rem;color:#888;margin-bottom:1rem}.progress-bar-container{width:100%}.progress-bar{width:100%;height:6px;background:#ffffff1a;border-radius:3px;overflow:hidden;position:relative}.progress-bar-fill{height:100%;background:linear-gradient(90deg,#4a9eff,#4caf50,#00d4ff);border-radius:3px;width:0%;transition:width .3s ease;position:relative}.progress-bar-fill:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);animation:shimmer-bar 2s ease-in-out infinite}@keyframes shimmer-bar{0%{transform:translate(-100%)}to{transform:translate(100%)}}.loading-features{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;margin-bottom:2rem}.feature-item{display:flex;align-items:center;gap:.5rem;padding:.8rem;background:#ffffff0d;border-radius:8px;backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1);transition:all .3s ease}.feature-item:hover{background:#ffffff14;transform:translateY(-2px)}.feature-icon{font-size:1.2rem}.feature-text{font-size:.9rem;color:#e0e0e0;font-weight:500}.loading-tips{margin-bottom:2rem}.tip-item{font-size:.9rem;color:#666;margin-bottom:.5rem;transition:all .3s ease;opacity:.5}.tip-item.active{color:#4a9eff;opacity:1;font-weight:500}.tip-item.completed{color:#4caf50;opacity:.8}.loading-error{background:#ef44441a;border:1px solid rgba(239,68,68,.3);border-radius:12px;padding:1.5rem;text-align:center;animation:shake .5s ease-in-out}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-5px)}75%{transform:translate(5px)}}.error-state{animation:errorPulse 2s ease-in-out infinite}@keyframes errorPulse{0%,to{opacity:1}50%{opacity:.8}}.error-icon{font-size:2rem;margin-bottom:1rem}.error-message{color:#ff6b6b;font-size:1rem;margin-bottom:1rem}.error-retry-btn{background:#ef4444;color:#fff;border:none;padding:.8rem 1.5rem;border-radius:8px;font-size:.9rem;font-weight:500;cursor:pointer;transition:all .3s ease}.error-retry-btn:hover{background:#dc2626;transform:translateY(-2px);box-shadow:0 4px 12px #ef44444d}.loading-container{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;max-width:400px;padding:2rem;z-index:9999}.loading-spinner{width:60px;height:60px;border:3px solid rgba(255,255,255,.1);border-top:3px solid #4a9eff;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 2rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading-text{font-size:1rem;color:#b0b0b0;margin-bottom:2rem}.loading-progress{width:100%;height:4px;background:#ffffff1a;border-radius:2px;overflow:hidden;margin-bottom:1rem}.loading-bar{height:100%;background:linear-gradient(90deg,#4a9eff,#00d4ff);border-radius:2px;width:0%;transition:width .3s ease}.loading-percentage{font-size:.9rem;color:#888}.control-panel{position:absolute;top:20px;left:20px;width:320px;background:#000c;backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:0;z-index:1000;transition:transform .3s ease,opacity .5s ease;max-height:calc(100vh - 40px);display:flex;flex-direction:column;overflow:hidden;box-sizing:border-box;touch-action:manipulation}.control-panel.loading{opacity:0;visibility:hidden;transform:translate(-20px)}.panel-header{padding:1rem 1.5rem;border-bottom:1px solid rgba(255,255,255,.1);flex-shrink:0}.header-top{display:flex;justify-content:space-between;align-items:center}.panel-header h3{font-size:1rem;font-weight:600;color:#fff;margin-bottom:.8rem}.panel-toggle{background:none;border:none;color:#fff;font-size:1.2rem;cursor:pointer;padding:.5rem;border-radius:6px;transition:background-color .2s ease}.panel-toggle:hover{background:#ffffff1a}.panel-collapse-btn{background:linear-gradient(45deg,#4a9eff,#00d4ff);border:none;color:#fff;padding:.25rem .8rem;border-radius:6px;font-size:.8rem;font-weight:500;cursor:pointer;transition:all .2s ease;box-shadow:0 2px 8px #4a9eff33}.panel-collapse-btn:hover{transform:translateY(-1px);box-shadow:0 4px 15px #4a9eff66;background:linear-gradient(45deg,#5aa9ff,#10d4ff)}.panel-collapse-btn:active{transform:translateY(0);box-shadow:0 2px 8px #4a9eff4d}.panel-content{flex:1;display:flex;flex-direction:column;min-height:0;overflow:hidden}.panel-tabs{display:flex;gap:.3rem;margin:0;padding:0;flex-shrink:0}.tab-button{flex:1;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#888;font-size:.75rem;font-weight:500;padding:.4rem .3rem;cursor:pointer;transition:all .2s ease;border-radius:4px}.tab-button:hover{background:#fff3;color:#fff}.tab-button.active{background:linear-gradient(45deg,#4a9eff,#00d4ff);border-color:#4a9eff;color:#fff}.tab-content-container{flex:1;overflow-y:auto;overflow-x:hidden;padding:1.5rem;min-height:0;-webkit-overflow-scrolling:touch;touch-action:pan-y}.tab-content{display:none}.tab-content.active{display:block}.control-section{margin-bottom:1.5rem}.control-section h4{font-size:1rem;font-weight:600;margin-bottom:1rem;color:#fff}.control-section h5{font-size:.9rem;font-weight:500;margin-bottom:.8rem;color:#b0b0b0}.control-btn{background:linear-gradient(45deg,#4a9eff,#00d4ff);border:none;color:#fff;padding:.6rem 1.2rem;border-radius:6px;font-size:.9rem;font-weight:500;cursor:pointer;transition:all .2s ease;margin-right:.5rem;margin-bottom:.5rem}.control-btn:hover{transform:translateY(-1px);box-shadow:0 4px 15px #4a9eff4d}.control-btn:not(.primary){background:#ffffff1a;border:1px solid rgba(255,255,255,.2)}.control-btn:not(.primary):hover{background:#fff3;box-shadow:0 4px 15px #ffffff1a}.time-controls{display:flex;gap:.5rem;margin-bottom:1rem}.speed-controls{margin:1rem 0}.speed-controls h5{font-size:.9rem;margin-bottom:.5rem;color:#ccc}.speed-info{margin-bottom:1rem;padding:.8rem;background:#4a9eff1a;border:1px solid rgba(74,158,255,.3);border-radius:6px}.speed-description{margin:0;font-size:.85rem;line-height:1.4;color:#e0e0e0}.speed-description strong{color:#4a9eff;font-weight:600}.speed-description small{display:block;margin-top:.5rem;color:#b0b0b0;font-size:.75rem;line-height:1.3}.speed-buttons{display:flex;gap:.2rem;margin-bottom:1rem;flex-wrap:wrap;width:100%;box-sizing:border-box;justify-content:flex-start}.speed-btn{padding:.2rem .4rem;border:1px solid rgba(74,158,255,.3);background:#4a9eff1a;color:#4a9eff;border-radius:4px;cursor:pointer;font-size:.75rem;transition:all .2s ease;min-width:35px;text-align:center;white-space:nowrap;flex-shrink:0}.speed-btn:hover{background:#4a9eff33;border-color:#4a9eff80}.speed-btn.active{background:#4a9eff;color:#000;border-color:#4a9eff}.speed-slider{display:flex;align-items:center;gap:.5rem;margin-bottom:1rem}.speed-slider label{font-size:.8rem;color:#ccc;white-space:nowrap}.speed-slider input[type=range]{flex:1;height:4px;background:#ffffff1a;border-radius:2px;outline:none;-webkit-appearance:none}.speed-slider input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;background:#4a9eff;border-radius:50%;cursor:pointer}.speed-slider input[type=range]::-moz-range-thumb{width:14px;height:14px;background:#4a9eff;border-radius:50%;cursor:pointer;border:none}#speed-display{font-size:.8rem;color:#4a9eff;font-weight:500;min-width:35px}.time-info{margin-top:1rem;padding-top:1rem;border-top:1px solid rgba(255,255,255,.1)}.time-info h5{font-size:.9rem;margin-bottom:.5rem;color:#ccc}.time-display{font-size:.8rem}.time-display>div{margin-bottom:.25rem;color:#aaa}.time-display span{color:#4a9eff;font-weight:500}.speed-control{margin-bottom:1rem}.speed-control label{display:block;font-size:.9rem;margin-bottom:.5rem;color:#b0b0b0}.speed-control input[type=range]{width:100%;margin-bottom:.8rem;accent-color:#4a9eff}.speed-presets{display:flex;gap:.2rem;flex-wrap:wrap}.speed-preset{background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#fff;padding:.3rem .5rem;border-radius:4px;font-size:.75rem;cursor:pointer;transition:all .2s ease;min-width:35px;text-align:center;white-space:nowrap;flex-shrink:0}.speed-preset:hover{background:#fff3}.speed-preset.active{background:linear-gradient(45deg,#4a9eff,#00d4ff);border-color:#4a9eff}.speed-explanation{margin-top:1rem;padding:.8rem;background:#ffffff0d;border:1px solid rgba(255,255,255,.08);border-radius:6px;font-size:.8rem}.explanation-title{color:#888;font-weight:500;margin-bottom:.6rem;font-size:.75rem;display:flex;align-items:center;gap:.3rem}.explanation-content{display:flex;flex-direction:column;gap:.4rem}.explanation-item{display:flex;justify-content:space-between;align-items:flex-start;line-height:1.3}.explanation-label{color:#999;font-weight:500;min-width:60px;font-size:.75rem;text-align:right}.explanation-text{color:#aaa;font-size:.72rem;text-align:left;flex:1;margin-left:.5rem}.time-display{font-size:.85rem;color:#b0b0b0}.time-display>div{margin-bottom:.5rem}.time-display label{font-weight:500;margin-right:.5rem}.time-machine-control{margin-bottom:1.5rem;padding:1rem;background:#ffffff08;border:1px solid rgba(255,255,255,.1);border-radius:8px}.time-machine-control h5{font-size:.9rem;font-weight:600;margin-bottom:1rem;color:#4a9eff;display:flex;align-items:center;gap:.5rem}.time-machine-slider label{color:#b0b0b0;font-size:.85rem;font-weight:500;margin-bottom:.8rem;display:block}.time-machine-slider input[type=range]{width:100%;height:4px;background:#ffffff1a;border-radius:2px;outline:none;margin-bottom:1rem;cursor:pointer}.time-machine-slider input[type=range]::-webkit-slider-thumb{appearance:none;width:16px;height:16px;background:#4a9eff;border-radius:50%;cursor:pointer;box-shadow:0 2px 6px #4a9eff4d;transition:all .2s ease}.time-machine-slider input[type=range]::-webkit-slider-thumb:hover{background:#00d4ff;transform:scale(1.1);box-shadow:0 3px 10px #4a9eff80}.time-machine-slider input[type=range]::-moz-range-thumb{width:16px;height:16px;background:#4a9eff;border-radius:50%;cursor:pointer;border:none;box-shadow:0 2px 6px #4a9eff4d}.time-machine-display{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem;gap:.8rem}.time-machine-display span{color:#fff;font-size:.9rem;font-weight:500;background:#4a9eff1a;padding:.5rem 1rem;border-radius:6px;border:1px solid rgba(74,158,255,.2);flex:1;white-space:nowrap;min-width:140px}.time-machine-tip{text-align:center;margin:.6rem 0;font-size:.75rem;color:#888;opacity:.8;font-style:italic}.time-machine-buttons{text-align:center}.control-btn.small{padding:.4rem .8rem;font-size:.8rem;white-space:nowrap;min-width:80px}.view-presets{display:grid;grid-template-columns:repeat(2,1fr);gap:.5rem;margin-bottom:1rem}.view-preset{background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#fff;padding:.6rem;border-radius:6px;font-size:.85rem;cursor:pointer;transition:all .2s ease;text-align:center}.view-preset:hover{background:#fff3;transform:translateY(-1px)}.display-options{margin-top:1rem}.checkbox-label{display:flex;align-items:center;margin-bottom:.6rem;font-size:.9rem;color:#b0b0b0;cursor:pointer}.checkbox-label input[type=checkbox]{margin-right:.8rem;accent-color:#4a9eff}.demo-section-compact{margin-bottom:.3rem!important}.demo-buttons{display:grid;grid-template-columns:repeat(2,1fr);gap:.4rem;margin-bottom:.5rem}.demo-btn{background:#ffa50033;border:1px solid rgba(255,165,0,.3);color:#ffb347;padding:.4rem .5rem;border-radius:6px;font-size:.82rem;cursor:pointer;transition:all .2s ease;text-align:center}.demo-btn:hover{background:#ffa5004d;transform:translateY(-1px)}.demo-btn.active{background:linear-gradient(45deg,#ff8c00,orange);border-color:#ff8c00;color:#fff;transform:translateY(-1px);box-shadow:0 4px 12px #ff8c004d}.education-content-area{margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid rgba(255,255,255,.1)}.education-placeholder{text-align:center;color:#888;font-style:italic;padding:2rem 1rem}.demo-placeholder{text-align:center;padding:2rem 1rem;background:#ffffff0d;border-radius:8px;border:1px dashed rgba(255,255,255,.2)}.demo-placeholder h5{color:#4a9eff;margin-bottom:.8rem;font-size:1.1rem}.demo-placeholder p{color:#888;font-style:italic}.setting-label{display:flex;justify-content:space-between;align-items:center;margin-bottom:.8rem;font-size:.9rem;color:#b0b0b0}.setting-label select{background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#fff;padding:.3rem .6rem;border-radius:4px;font-size:.85rem}.setting-label select option{background:#2a2a2a;color:#fff;padding:.4rem .6rem;border:none}.setting-label select option:hover{background:#4a9eff;color:#fff}.info-panel{position:absolute;top:20px;right:20px;width:300px;background:#000c;backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:0;z-index:1000;max-height:calc(100vh - 40px);display:flex;flex-direction:column;transition:opacity .5s ease,transform .3s ease}.info-panel.loading{opacity:0;visibility:hidden;transform:translate(20px)}.info-header{padding:1rem 1.5rem;border-bottom:1px solid rgba(255,255,255,.1);flex-shrink:0}.info-header h4{font-size:1rem;font-weight:600;color:#fff;margin-bottom:.8rem}.info-mode-tabs{display:flex;gap:.3rem}.mode-tab{flex:1;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#888;padding:.4rem .3rem;border-radius:4px;font-size:.75rem;cursor:pointer;transition:all .2s ease}.mode-tab:hover{background:#fff3;color:#fff}.mode-tab.active{background:linear-gradient(45deg,#4a9eff,#00d4ff);border-color:#4a9eff;color:#fff}.info-content{padding:1.5rem;flex:1;overflow-y:auto;min-height:0;-webkit-overflow-scrolling:touch;touch-action:pan-y}.info-mode{display:none}.info-mode.active{display:block}.info-section{margin-bottom:1.5rem}.info-section h5{font-size:.9rem;font-weight:600;margin-bottom:.8rem;color:#4a9eff}.info-section h6{font-size:.85rem;font-weight:600;margin-bottom:.5rem;color:#fff}.info-grid{display:grid;gap:.6rem}.info-item{display:flex;justify-content:space-between;align-items:center;font-size:.85rem}.info-item label{color:#b0b0b0;font-weight:500}.info-item span{color:#fff;font-weight:600}.city-selector{margin:.5rem 0}.city-select-dropdown{width:100%;padding:.5rem .75rem;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);border-radius:6px;color:#fff;font-size:.9rem;font-family:inherit;outline:none;transition:all .3s ease;cursor:pointer}.city-select-dropdown:hover{background:#ffffff26;border-color:#4a9eff80}.city-select-dropdown:focus{background:#ffffff26;border-color:#4a9eff;box-shadow:0 0 0 2px #4a9eff33}.city-select-dropdown option{background:#1a1a2e;color:#fff;padding:.5rem;border:none}.city-select-dropdown option:hover{background:#4a9eff4d}.city-select-dropdown option:checked{background:#4a9eff;color:#fff}.education-content{font-size:.85rem;line-height:1.5}.knowledge-card{background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:6px;padding:1rem;margin-bottom:1rem}.knowledge-card p{color:#b0b0b0;margin-top:.5rem}.concept-list ul{list-style:none;margin-top:.5rem}.concept-list li{color:#b0b0b0;margin-bottom:.3rem;padding-left:1rem;position:relative}.concept-list li:before{content:"•";color:#4a9eff;position:absolute;left:0}.learning-objectives{margin-top:.8rem}.objective-item{display:flex;align-items:center;margin-bottom:.6rem;font-size:.85rem}.objective-status{margin-right:.8rem;width:20px;text-align:center}.objective-item.completed{color:#4ade80}.objective-item.current{color:#4a9eff}.objective-item:not(.completed):not(.current){color:#888}.performance-chart{margin-top:1rem;padding:.5rem;background:#ffffff0d;border-radius:4px}.fps-display{font-weight:600}.fps-good{color:#4ade80}.fps-medium{color:#fbbf24}.fps-poor{color:#ef4444}.debug-info{font-size:.8rem}.debug-item{display:flex;justify-content:space-between;margin-bottom:.4rem;color:#b0b0b0}.error-message{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#000000e6;display:flex;align-items:center;justify-content:center;z-index:10000}.error-content{text-align:center;max-width:400px;padding:2rem;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:12px;backdrop-filter:blur(10px)}.error-content h3{font-size:1.5rem;margin-bottom:1rem;color:#ff6b6b}.error-content p{font-size:1rem;color:#b0b0b0;margin-bottom:2rem;line-height:1.5}.retry-button{background:linear-gradient(45deg,#4a9eff,#00d4ff);border:none;color:#fff;padding:.8rem 2rem;border-radius:8px;font-size:1rem;font-weight:500;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}.retry-button:hover{transform:translateY(-2px);box-shadow:0 8px 25px #4a9eff4d}.disabled{opacity:.5;pointer-events:none}.tab-content-container::-webkit-scrollbar,.info-content::-webkit-scrollbar{width:6px}.tab-content-container::-webkit-scrollbar-track,.info-content::-webkit-scrollbar-track{background:#ffffff1a;border-radius:3px}.tab-content-container::-webkit-scrollbar-thumb,.info-content::-webkit-scrollbar-thumb{background:#ffffff4d;border-radius:3px}.tab-content-container::-webkit-scrollbar-thumb:hover,.info-content::-webkit-scrollbar-thumb:hover{background:#ffffff80}@media (max-width: 768px){.tab-content-container::-webkit-scrollbar,.info-content::-webkit-scrollbar{width:4px}.tab-content-container::-webkit-scrollbar-thumb,.info-content::-webkit-scrollbar-thumb{background:#4a9eff99;border-radius:2px}.tab-content-container:before{content:"";position:sticky;top:0;display:block;height:2px;background:linear-gradient(90deg,transparent,rgba(74,158,255,.3),transparent);margin:0 -1rem .5rem;z-index:1}}@media (max-width: 1366px) and (min-width: 769px) and (pointer: coarse){.control-panel,.info-panel{max-height:80vh;touch-action:manipulation;transform:translateZ(0);-webkit-transform:translateZ(0)}.tab-content-container{max-height:calc(80vh - 140px);overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch;touch-action:pan-y;-webkit-transform:translateZ(0);transform:translateZ(0);position:relative;z-index:1}.info-content{max-height:calc(80vh - 90px);overflow-y:auto;-webkit-overflow-scrolling:touch;touch-action:pan-y;-webkit-transform:translateZ(0);transform:translateZ(0);position:relative;z-index:1}}@media (pointer: coarse){.tab-content-container,.info-content{-webkit-overflow-scrolling:touch!important;touch-action:pan-y!important;overflow-y:auto!important;transform:translateZ(0)!important;-webkit-transform:translateZ(0)!important}.control-panel,.info-panel{touch-action:manipulation!important;overflow:visible!important}}@media screen and (min-device-width: 768px) and (max-device-width: 1366px) and (-webkit-min-device-pixel-ratio: 1){.control-panel{max-height:85vh!important;overflow:visible!important}.tab-content-container{height:calc(85vh - 160px)!important;max-height:none!important;overflow-y:scroll!important;overflow-x:hidden!important;-webkit-overflow-scrolling:touch!important;touch-action:pan-y!important;-webkit-transform:translate3d(0,0,0)!important;transform:translateZ(0)!important;position:relative;z-index:10}.info-panel{max-height:85vh!important}.info-content{height:calc(85vh - 90px)!important;max-height:none!important;overflow-y:scroll!important;-webkit-overflow-scrolling:touch!important;touch-action:pan-y!important;-webkit-transform:translate3d(0,0,0)!important;transform:translateZ(0)!important}}@media (max-width: 768px){.control-panel,.info-panel{width:calc(100vw - 40px);left:20px;right:20px}.control-panel{max-height:70vh}.info-panel{top:auto;bottom:20px;max-height:70vh}.tab-content-container{padding:1rem;max-height:calc(70vh - 120px);overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch}.info-content{padding:1rem;max-height:calc(70vh - 80px);overflow-y:auto;-webkit-overflow-scrolling:touch}.loading-container{padding:1rem}.loading-title{font-size:1.5rem}.panel-tabs{padding:1rem 1rem 0}.demo-buttons,.view-presets{grid-template-columns:1fr}.panel-collapse-btn{padding:.4rem 1rem;font-size:.85rem;min-height:36px}}@media (max-width: 480px){.control-panel,.info-panel{width:calc(100vw - 20px);left:10px;right:10px}.control-panel,.info-panel{max-height:75vh}.tab-content-container{padding:.8rem;max-height:calc(75vh - 140px);overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch}.info-content{padding:.8rem;max-height:calc(75vh - 70px);overflow-y:auto;-webkit-overflow-scrolling:touch}.panel-tabs{flex-wrap:wrap}.tab-button{flex-basis:50%;font-size:.8rem}.panel-collapse-btn{padding:.5rem 1.2rem;font-size:.9rem;min-height:40px}}.seasons-demo-content{padding:0}.seasons-demo-content .season-controls{margin-bottom:.6rem}.seasons-demo-content .season-buttons{display:grid;grid-template-columns:repeat(4,1fr);gap:.3rem;margin-bottom:.4rem}.seasons-demo-content .season-btn{display:flex;flex-direction:column;align-items:center;gap:.1rem;padding:.3rem .2rem;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:6px;cursor:pointer;transition:all .15s ease;text-align:center}.seasons-demo-content .season-btn:hover{background:#ffffff1a}.seasons-demo-content .season-btn.active{background:#4a9eff33;border-color:#4a9eff80}.seasons-demo-content .season-icon{font-size:1rem}.seasons-demo-content .season-name{color:#ccc;font-size:.72rem;font-weight:500}.seasons-demo-content .season-btn.active .season-name{color:#fff}.season-desc-bar{display:flex;align-items:center;gap:.4rem;padding:.35rem .5rem;background:#ffffff0a;border-radius:5px;flex-wrap:wrap}.season-desc-bar .season-indicator{width:8px;height:8px;border-radius:50%;flex-shrink:0}.season-desc-bar .season-desc-name{color:#fff;font-size:.82rem;font-weight:600}.season-desc-bar .season-desc-date{color:#888;font-size:.75rem}.season-desc-bar .season-desc-text{color:#aaa;font-size:.72rem;flex-basis:100%}.seasons-demo-content .daylight-info{margin-bottom:.8rem}.seasons-demo-content .daylight-info h6{color:#4a9eff;font-size:.82rem;font-weight:600;margin-bottom:.4rem}.seasons-demo-content .daylight-grid{display:flex;flex-direction:column;gap:.25rem}.seasons-demo-content .daylight-item{display:flex;justify-content:space-between;align-items:center;padding:.3rem .6rem;background:#ffffff0d;border-radius:4px;border-left:3px solid #4a9eff}.seasons-demo-content .daylight-item label{color:#ccc;font-size:.78rem;font-weight:500}.seasons-demo-content .daylight-item span{color:#fff;font-size:.78rem;font-weight:600}.seasons-demo-content .display-controls{margin-bottom:.8rem}.seasons-demo-content .display-controls h6{color:#4a9eff;font-size:.82rem;font-weight:600;margin-bottom:.4rem}.seasons-demo-content .control-options{display:flex;flex-direction:column;gap:.25rem}.seasons-demo-content .control-option{display:flex;align-items:center;gap:.5rem;cursor:pointer;padding:.15rem 0;transition:opacity .2s ease}.seasons-demo-content .control-option:hover{opacity:.8}.seasons-demo-content .control-option input[type=checkbox]{display:none}.seasons-demo-content .checkmark{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-radius:3px;position:relative;transition:all .2s ease;flex-shrink:0}.seasons-demo-content .control-option input[type=checkbox]:checked+.checkmark{background:#4a9eff;border-color:#4a9eff}.seasons-demo-content .control-option input[type=checkbox]:checked+.checkmark:after{content:"✓";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#fff;font-size:12px;font-weight:700}.seasons-demo-content .label-text{color:#ccc;font-size:.8rem;font-weight:500}.seasons-demo-content .control-option input[type=checkbox]:checked+.checkmark-orange{background:#ff8c00;border-color:#ff8c00}.seasons-demo-content .control-option input[type=checkbox]:checked+.checkmark-red{background:#f22;border-color:#f22}.axis-vertical-highlight{color:#fa4!important;transition:color .3s ease}.axis-vertical-hint{margin-top:.5rem;padding:.5rem .7rem;background:#ffa5001a;border-left:3px solid #ff8c00;border-radius:0 4px 4px 0;font-size:.75rem;color:#fa4;line-height:1.4;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}.seasons-demo-content .education-points{margin-bottom:.5rem}.seasons-demo-content .education-points h6{color:#4a9eff;font-size:.82rem;font-weight:600;margin-bottom:.4rem}.seasons-demo-content .education-points .education-content{display:flex;flex-direction:column;gap:.25rem}.seasons-demo-content .education-point{padding:.3rem .6rem;background:#ffffff0d;border-radius:4px;border-left:3px solid #00d4ff;font-size:.78rem;line-height:1.35;color:#ccc}.seasons-demo-content .education-point strong{color:#00d4ff;font-weight:600}@media (max-width: 768px){.seasons-demo-content .season-buttons{grid-template-columns:repeat(4,1fr);gap:.25rem}.seasons-demo-content .season-btn{padding:.25rem .15rem}}.eclipse-demo-content{padding:0}.eclipse-demo-content h6{color:#4a9eff;font-size:.82rem;margin-bottom:.4rem;font-weight:600}.eclipse-module-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.4rem}.eclipse-module-header h6{margin-bottom:0!important}.eclipse-module-buttons{display:grid;grid-template-columns:1fr 1fr;gap:.35rem;margin-bottom:.8rem}.eclipse-module-btn{display:flex;flex-direction:row;align-items:center;justify-content:center;gap:.3rem;padding:.35rem .4rem;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:6px;cursor:pointer;transition:all .2s ease;color:#ccc}.eclipse-module-btn:hover{background:#ffffff1a}.eclipse-module-btn.active{background:#4a9eff33;border-color:#4a9eff80;color:#fff}.eclipse-module-btn .module-icon{font-size:1rem}.eclipse-module-btn .module-name{font-size:.78rem;font-weight:500}.eclipse-actions{margin-bottom:1.2rem}.eclipse-action-btn{width:100%;padding:.7rem;border-radius:8px;border:1px solid rgba(255,215,0,.3);background:#ffd7001a;color:gold;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .2s ease}.eclipse-action-btn:hover:not(:disabled){background:#ffd70033;border-color:#ffd70080;transform:translateY(-1px)}.eclipse-action-btn:disabled{opacity:.6;cursor:not-allowed}.eclipse-type-select{margin-bottom:.8rem}.eclipse-type-buttons{display:flex;gap:.4rem;margin-bottom:.8rem}.eclipse-type-btn{flex:1;padding:.3rem;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:6px;color:#ccc;font-size:.8rem;cursor:pointer;transition:all .2s ease}.eclipse-type-btn:hover{background:#ffffff1a}.eclipse-type-btn.active{background:#4a9eff33;border-color:#4a9eff80;color:#fff}.type-desc{font-size:.8rem;color:#ccc;line-height:1.4}.type-desc p{margin-bottom:.35rem}.type-params{display:flex;flex-direction:column;gap:.2rem}.type-params .param-item{display:flex;justify-content:space-between;padding:.2rem .4rem;background:#ffffff08;border-radius:4px;font-size:.78rem;font-size:.8rem}.type-params .param-item span:first-child{color:#999}.type-params .param-item span:last-child{color:#fff;font-weight:500}.eclipse-display-controls{margin-bottom:.8rem}.eclipse-display-controls .control-options{display:flex;flex-direction:column;gap:.25rem}.eclipse-display-controls .control-option{display:flex;align-items:center;gap:.5rem;cursor:pointer;padding:.15rem 0;color:#ccc;font-size:.82rem}.eclipse-display-controls .control-option:hover{opacity:.8}.eclipse-display-controls .control-option.disabled{opacity:.35;cursor:not-allowed;pointer-events:none}.eclipse-demo-content .knowledge-card{padding:.6rem;background:#4a9eff14;border:1px solid rgba(74,158,255,.15);border-radius:6px;margin-bottom:.8rem}.eclipse-demo-content .knowledge-card h6{color:gold!important;margin-bottom:.3rem!important;font-size:.8rem!important}.eclipse-demo-content .knowledge-card p{color:#ccc;font-size:.78rem;line-height:1.4;margin-bottom:.15rem}.knowledge-card p strong{color:#4a9eff}.shadow-explain{display:flex;flex-direction:column;gap:.35rem;margin-top:.3rem}.shadow-item{padding:.4rem .5rem;border-radius:5px;background:#0003}.shadow-item-header{display:flex;align-items:center;gap:.35rem;margin-bottom:.15rem}.shadow-item-header strong{font-size:.8rem}.shadow-dot{width:10px;height:10px;border-radius:50%;display:inline-block;flex-shrink:0}.umbra-dot{background:#f63;box-shadow:0 0 4px #f639}.penumbra-dot{background:#69c;box-shadow:0 0 4px #69c9}.umbra-explain{border-left:3px solid rgba(255,102,51,.5)}.umbra-explain strong{color:#f85!important}.penumbra-explain{border-left:3px solid rgba(102,153,204,.5)}.penumbra-explain strong{color:#8bd!important}.antumbra-dot{background:#c8f;box-shadow:0 0 4px #c8f9}.antumbra-explain{border-left:3px solid rgba(204,136,255,.5)}.antumbra-explain strong{color:#c8f!important}.shadow-item p{font-size:.8rem!important;line-height:1.5;margin-bottom:.2rem}.ray-umbra{color:#f63;font-weight:700;border-bottom:1px dashed #FF6633}.ray-penumbra{color:#69c;font-weight:700;border-bottom:1px dashed #6699CC}.shadow-tip{margin-top:.5rem;padding:.4rem .6rem;background:#ffd70014;border-radius:4px;font-size:.78rem!important;color:#e0c060!important}.eclipse-safety-tip{display:flex;gap:.5rem;padding:.5rem;background:#ff50501a;border:1px solid rgba(255,80,80,.25);border-radius:6px;margin-bottom:.5rem}.eclipse-safety-tip .safety-icon{font-size:1rem;flex-shrink:0}.eclipse-safety-tip .safety-text strong{color:#ff6b6b;font-size:.78rem}.eclipse-safety-tip .safety-text p{color:#ccc;font-size:.72rem;line-height:1.35;margin-top:.1rem}.eclipse-exit-btn{padding:.2rem .6rem;border-radius:4px;border:1px solid rgba(255,100,100,.3);background:#ff646414;color:#f88;font-size:.72rem;cursor:pointer;transition:all .2s ease;flex-shrink:0}.eclipse-exit-btn:hover{background:#ff646433;border-color:#ff646480}.eclipse-process-panel{margin-bottom:.8rem}.eclipse-process-view-select{display:flex;align-items:center;gap:.4rem;margin-bottom:.4rem;flex-wrap:wrap}.eclipse-process-view-buttons{display:flex;gap:.3rem;flex:1}.eclipse-process-view-btn{flex:1;padding:.35rem .3rem;background:#ffffff0a;border:1px solid rgba(255,255,255,.1);border-radius:6px;color:#aaa;font-size:.78rem;cursor:pointer;transition:all .2s ease;white-space:nowrap}.eclipse-process-view-btn:hover{background:#ffffff14;color:#ddd}.eclipse-process-view-btn.active{background:#64c8ff26;border-color:#64c8ff66;color:#64c8ff;font-weight:500}.eclipse-cosmic-view-hint{display:flex;align-items:center;gap:.4rem;background:#64c8ff0f;border:1px solid rgba(100,200,255,.15);border-radius:6px;padding:.35rem .5rem;margin-bottom:.5rem}.eclipse-cosmic-view-hint .gv-hint-text{color:#8bd;font-size:.78rem;line-height:1.4}.eclipse-process-type-select{display:flex;align-items:center;gap:.4rem;margin-bottom:.5rem;flex-wrap:wrap}.process-type-label{color:#999;font-size:.78rem;flex-shrink:0}.eclipse-process-type-buttons{display:flex;gap:.3rem;flex:1}.eclipse-process-type-btn{flex:1;padding:.3rem .2rem;background:#ffffff0a;border:1px solid rgba(255,255,255,.1);border-radius:5px;color:#aaa;font-size:.75rem;cursor:pointer;transition:all .15s ease}.eclipse-process-type-btn:hover{background:#ffffff14;color:#ddd}.eclipse-process-type-btn.active{background:#4a9eff2e;border-color:#4a9eff73;color:#4a9eff;font-weight:500}.eclipse-timeline{margin-bottom:.8rem}.timeline-labels{position:relative;height:1.4rem;margin-bottom:.3rem}.tl-label{position:absolute;transform:translate(-50%);font-size:.7rem;color:#999;cursor:pointer;padding:.15rem .3rem;border-radius:3px;transition:all .15s ease;white-space:nowrap}.tl-label:hover{color:gold;background:#ffd7001a}.timeline-slider{width:100%;height:6px;-webkit-appearance:none;appearance:none;background:#ffffff1a;border-radius:3px;outline:none;cursor:pointer}.timeline-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:14px;height:14px;background:gold;border-radius:50%;cursor:pointer;box-shadow:0 0 4px #ffd70080}.timeline-slider::-moz-range-thumb{width:14px;height:14px;background:gold;border-radius:50%;cursor:pointer;border:none}.timeline-phase-name{text-align:center;color:gold;font-size:.85rem;font-weight:600;margin-top:.3rem}.eclipse-process-controls{display:flex;justify-content:center;align-items:center;gap:.8rem;margin-bottom:.6rem}.process-ctrl-btn{padding:.4rem .8rem;background:#ffffff0d;border:1px solid rgba(255,255,255,.15);border-radius:6px;color:#ccc;font-size:.8rem;cursor:pointer;transition:all .15s ease}.process-ctrl-btn:hover{background:#ffffff1a;color:#fff}.process-play-btn{padding:.4rem 1.2rem;background:#4a9eff26;border-color:#4a9eff4d;color:#4a9eff;font-weight:600}.process-play-btn:hover{background:#4a9eff40}.process-slider-hint{font-size:.7rem;color:#ffffff59;align-self:center}.eclipse-speed-controls{display:flex;align-items:center;gap:.4rem}.speed-label{color:#999;font-size:.8rem}.speed-btn{padding:.25rem .5rem;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:4px;color:#999;font-size:.75rem;cursor:pointer;transition:all .15s ease}.speed-btn:hover{background:#ffffff1a;color:#ccc}.speed-btn.active{background:#4a9eff33;border-color:#4a9eff66;color:#4a9eff}.eclipse-pip-canvas{position:absolute;right:20px;bottom:20px;width:280px;height:280px;border:2px solid rgba(255,215,0,.4);border-radius:12px;box-shadow:0 0 20px #0009,0 0 8px #ffd70026 inset;z-index:100;pointer-events:none}.eclipse-pip-canvas:after{content:"地面视角";position:absolute;bottom:8px;left:50%;transform:translate(-50%);font-size:.7rem;color:#ffd70099;pointer-events:none}.eclipse-ground-view{position:absolute;top:0;left:0;width:100%;height:100%;z-index:50;cursor:default}.eclipse-ground-view-hint{display:flex;align-items:flex-start;gap:.4rem;padding:.35rem .5rem;background:#4a9eff14;border:1px solid rgba(74,158,255,.15);border-radius:6px;margin-bottom:.5rem}.gv-hint-icon{font-size:1.1rem;flex-shrink:0;margin-top:1px}.gv-hint-text{font-size:.78rem;color:#8bb8e8;line-height:1.4}.eclipse-gv-exit-area{margin-top:.6rem}.eclipse-gv-exit-btn{width:100%;padding:.5rem;border-radius:6px;border:1px solid rgba(255,200,50,.3);background:#ffc8321a;color:#ffd060;font-size:.82rem;cursor:pointer;transition:all .2s ease}.eclipse-gv-exit-btn:hover{background:#ffc83233;border-color:#ffc83280}.knowledge-note{margin-top:.4rem;padding:.4rem .6rem;background:#ff96321a;border-left:3px solid rgba(255,150,50,.4);border-radius:0 4px 4px 0;font-size:.78rem!important;color:#e8a860!important}.eclipse-quiz{margin-bottom:.8rem}.quiz-card{padding:.6rem;background:#6450c814;border:1px solid rgba(100,80,200,.2);border-radius:6px}.quiz-card h6{color:#c8a0ff!important;margin-bottom:.3rem!important;font-size:.8rem!important}.quiz-question{color:#ddd;font-size:.8rem;line-height:1.4;margin-bottom:.4rem}.quiz-options{display:flex;flex-direction:column;gap:.25rem}.quiz-option{width:100%;text-align:left;padding:.3rem .5rem;background:#ffffff0a;border:1px solid rgba(255,255,255,.1);border-radius:5px;color:#ccc;font-size:.78rem;cursor:pointer;transition:all .15s ease}.quiz-option:hover:not(:disabled){background:#ffffff14;border-color:#fff3;color:#fff}.quiz-option:disabled{cursor:default;opacity:.7}.quiz-option.quiz-correct{background:#50c87826!important;border-color:#50c87866!important;color:#6de890!important;opacity:1!important}.quiz-option.quiz-wrong{background:#ff50501f!important;border-color:#ff505059!important;color:#f88!important;opacity:1!important}.quiz-feedback{margin-top:.5rem;padding:.45rem .6rem;border-radius:5px;font-size:.78rem;line-height:1.4}.quiz-feedback.correct{background:#50c8781a;border:1px solid rgba(80,200,120,.25);color:#6de890}.quiz-feedback.wrong{background:#ff505014;border:1px solid rgba(255,80,80,.2);color:#f99}