:root{--primary: #4f46e5;--primary-dark: #4338ca;--text-main: #1e293b;--text-muted: #64748b;--bg-glass: rgba(255, 255, 255, .92);--shadow-soft: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--radius: 12px}body{margin:0;padding:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;overflow:hidden;color:var(--text-main)}#cesiumContainer{width:100vw;height:100vh;margin:0;padding:0;position:absolute;top:0;left:0;z-index:1}.cesium-viewer-bottom{display:none!important}#header-box{position:absolute;top:20px;left:20px;z-index:1000;background:var(--bg-glass);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);padding:12px 20px;border-radius:var(--radius);box-shadow:var(--shadow-soft);display:flex;align-items:center;gap:15px;cursor:pointer;transition:all .2s ease;border:1px solid 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