.main_box{width:60%}.qa-list{margin:100px 0}.qa-list dl{position:relative;margin:30px 0 0;cursor:pointer;border:1px solid #DDD}.qa-list dl:first-child{margin-top:0}.qa-list dl::after{position:absolute;top:27px;right:26px;display:block;width:7px;height:7px;margin:auto;content:'';transform:rotate(135deg);border-top:2px solid #000;border-right:2px solid #000}.qa-list .open::after{transform:rotate(-45deg)}.qa-list dl dt{position:relative;margin:0;padding:20px 20px 20px 60px;font-weight:700;font-size:1.8rem;text-align:left}.qa-list dl dt::before{font-size:22px;line-height:1;position:absolute;top:20px;left:20px;display:block;content:'Q.';color:#3285bf}.qa-list dl dd::before{font-size:22px;line-height:1;position:absolute;left:20px;display:block;content:'A.';font-weight:700;color:#ff5454}.qa-list dl dd{position:relative;margin:0;padding:20px 20px 20px 60px;text-align:left}.qa-list dl dd p{margin:30px 0 0}.qa-list dl dd p:first-child{margin-top:0}@media screen and (max-width:767px){.main_box{width:100%}.qa-list dl dt{position:relative;margin:0;padding:20px 50px 20px 60px}.qa-list dl{margin:10px 0 0}.qa-list dl:after{top:20px;right:20px;width:7px;height:7px}}