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40px);box-shadow:var(--shadow-md);text-align:center;background:#fff;border-radius:8px;padding:28px}.spinner{border:3px solid #dce8e2;border-top:3px solid var(--color-primary);border-radius:50%;width:34px;height:34px;margin:0 auto 14px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(1turn)}}@media (width<=980px){.home-hero{grid-template-columns:1fr .72fr;gap:36px}.hero-demo{min-height:480px}.cutout-workspace,.editor-workspace{grid-template-columns:1fr}.sidebar{position:static}.canvas-panel{min-height:600px}}@media (width<=760px){:root{--header-height:58px}.page-shell{width:min(100% - 24px,1180px)}.header-nav{display:none}.brand{font-size:16px}.brand-mark{width:31px;height:31px}.language-select{min-width:118px}.home-hero{grid-template-columns:1fr;min-height:auto;padding:42px 0 26px}.hero-title{font-size:50px}.hero-subtitle{margin:16px 0 24px;font-size:16px}.upload-dropzone{min-height:190px;padding:22px 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