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24px}.cta-form-row{flex-direction:column}.cta-title{font-size:28px}.demo-grid{max-width:500px}}@media (width<=640px){.container{padding:0 20px}.hero{min-height:auto;padding:100px 0 60px}.hero-title{font-size:36px}.hero-stats{flex-wrap:wrap;justify-content:center}.hero-stat-num{font-size:32px}.problems-grid,.data-cards{grid-template-columns:1fr}.section{padding:80px 0}.engine-tabs-nav{-webkit-overflow-scrolling:touch;flex-wrap:nowrap;justify-content:flex-start;margin:24px 0 30px;padding-bottom:8px;overflow-x:auto}.engine-tabs-nav::-webkit-scrollbar{display:none}.tab-btn{flex-shrink:0;padding:10px 16px;font-size:12px}.engine-layout{grid-template-columns:1fr;gap:24px}.engine-detail h3{font-size:22px}.simulator-card{padding:16px}.sim-input-wrapper{flex-direction:column}.matrix-cards-grid{grid-template-columns:1fr 1fr;gap:10px}.m-card{padding:18px 10px}.intercept-preview{padding:16px}.engine-visual-box{padding:24px}.engine-title{font-size:24px}.stat-row{flex-direction:column;gap:16px}.stat-item{min-width:auto}}