.classroom-packs-index{max-width:1120px;width:calc(100% - 40px);margin:48px auto 64px}.classroom-packs-index header{max-width:760px}.classroom-packs-index h1{font-size:clamp(2.2rem,5vw,3.5rem);color:#173c43;margin:12px 0 20px}.classroom-packs-index header p{line-height:1.7;font-size:1.1rem}