const updateHeaderMetrics = () => { const header = document.getElementById('header'); const rect = header.getBoundingClientRect(); const headerHeight = rect.bottom; document.documentElement.style.setProperty('--header-height', `${headerHeight}px`); }; window.addEventListener('DOMContentLoaded', updateHeaderMetrics); window.addEventListener('resize', updateHeaderMetrics); const header = document.getElementById('header'); const resizeObserver = new ResizeObserver(entries => { for (let entry of entries) { const rect = entry.target.getBoundingClientRect(); const headerHeight = rect.bottom; document.documentElement.style.setProperty('--header-height', `${headerHeight}px`); } }); resizeObserver.observe(header);

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Creative Inert Gas Lightning Cup

Where inert gas magic meets electrifying artistry—this cup crackles with controlled lightning, blending scientific wonder with bold design to spark conversation on any surface

$129.90

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Sustainably made

Secure payments

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Estimated Delivery：Feb-07 - Feb-11

Vendor by: 合作供应商

SKU: --A001116213

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