.choice-mix-note{
  max-width:720px;
  margin:2px auto 4px;
  color:#b42318;
  font-size:.86rem;
  font-weight:800;
  line-height:1.5;
  text-align:center;
}

.proof-paper::after{content:"A3+"}

@media (min-width:1024px){
  .shell{max-width:1280px;padding:16px 32px 48px}
  .home-view{max-width:1220px;margin:0 auto;gap:18px}
  .home-order-brief{padding:22px 28px}
  .choice-grid{gap:16px}
  .choice-card{min-height:132px;padding:15px 18px}
  .choice-icon{width:50px;height:50px}
  .version-a-history{padding:24px}
  .history-grid{gap:12px}
  .history-card{grid-template-columns:78px minmax(0,1fr);gap:12px;padding:13px}
  .history-preview{width:78px;height:78px}
  .welcome-grid{grid-template-columns:minmax(0,1.12fr) minmax(360px,.8fr);gap:24px;align-items:stretch}
  .upload-panel,.order-card{padding:32px}
  .editor-grid,.proof-grid{grid-template-columns:minmax(0,1.1fr) minmax(360px,.78fr);gap:26px}
  .stage{min-height:480px;padding:44px}
  .proof-paper{min-height:440px;padding:48px}
}