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h2{font-size:clamp(2.5rem,9vw,3.9rem)}.feature-media-board{min-height:560px}.guide-invite__panel{grid-template-columns:1fr;gap:30px}.guide-invite__chapters{border-top:1.5px solid #161c2266;border-left:0;padding:23px 0 0}.faq-section{grid-template-columns:1fr;gap:37px}.closing{padding-bottom:93px}.site-footer{grid-template-columns:1fr;gap:23px}.footer-links{justify-content:flex-start}.site-footer>p{grid-column:1}}@media (width<=430px){.brand-zh{display:none}.language-menu summary{justify-content:center;width:38px;height:38px;padding:0}.language-menu summary>span,.language-menu summary .language-menu__chevron{display:none}.header-download{max-width:96px}.header-download span{display:none}.eyebrow{font-size:10px}.hero h1{font-size:clamp(2.25rem,8.5vw,2.75rem)}.hero-actions{align-items:stretch}.hero-actions .button{width:100%}.hero-stage{--stage-padding:18px}.phone-shell{width:220px}.feature-media-board{min-height:485px;padding-block:20px}.faq-list 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