.letro-about-intro{margin-bottom:30px;text-align:left}.letro-about-summary{padding:60px 0 40px}.letro-function-index{background:url(https://service.aainc.co.jp/hubfs/letroLP/img_letro_index-pc-arrow.png) no-repeat 0 30%;background-size:contain;display:flex;justify-content:center;margin:0 auto;max-width:1200px;text-align:center}.index-left-content,.index-right-content{display:flex;justify-content:center;margin:15px 10px}.letro-function-index .index-item{margin:0 15px;width:240px}.letro-function-index .index-item-box{background-color:#fff;border:1px solid #ffd9c4;border-radius:8px;margin:0 auto 10px;padding:0 0 20px;width:140px}.letro-function-index .index-item-box .index-number{margin-top:-20px;width:48px}.letro-function-index .index-item-box h3{color:#ea5d1e;font-size:3rem;letter-spacing:.2rem;margin-bottom:8px}.letro-function-index .index-item-box .index-icon{width:60px}.letro-function-index .index-item-description{font-size:1.6rem}@media screen and (max-width:767px){.letro-about-intro{padding:0 15px}.letro-about-summary{padding:50px 0 40px}.letro-function-index{background:url(https://service.aainc.co.jp/hubfs/letroLP/img_letro_index-sp-arrow.png) no-repeat 50% 30%;background-size:370px;flex-flow:column}.index-right-content{flex-flow:row-reverse}.letro-function-index .index-item{margin:0 10px;width:140px}.letro-function-index .index-item-box{padding:0 0 12px;width:130px}.letro-function-index .index-item-box h3{font-size:2.6rem;margin-bottom:0}.letro-function-index .index-item-box .index-icon{width:50px}.letro-function-index .index-item-description{font-size:1.4rem;line-height:1.6;padding:0 6px}}