@charset "utf-8";@media screen and (max-width:670px){#box_topic1{float:left;width:100%;margin:0 auto 30px}#box_topic2{float:left;width:100%;margin:0 auto 30px}#box_topic3{float:left;width:100%;margin:0 auto 30px}#box_topic4{float:left;width:100%;margin:0 auto 30px}}@media screen and (min-width:671px),print{#box_topic1{float:left;width:calc(50% - 15px);margin:0 15px 30px 0}#box_topic2{float:left;width:calc(50% - 15px);margin:0 0 30px 15px}#box_topic3{float:left;width:calc(50% - 15px);margin:0 15px 30px 0}#box_topic4{float:left;width:calc(50% - 15px);margin:0 0 30px 15px}}img.caption_mark{margin-bottom:-3px}