#main_content {}
#main_content ul {}
#main_content ul li {margin: 0rem 1.5rem 1rem; border:1px solid #033075;}
#main_content ul li .qa_q {background: #033075; color:#fff; padding: 1rem; font-size:2.2rem; line-height: 1.3;}
#main_content ul li .qa_q::before {content: "Q. "; color: #fff;}
#main_content ul li .qa_a {padding: 1rem; font-size:2rem; line-height: 1.3; display: none; border-top: 1px solid #033075;}
#main_content ul li .qa_a.on {display: block; color: #5b5b5b;}