#main_content {padding: 2rem;}
#main_content h2 {padding: 0 0 2rem;}
#main_content h2 p {font-size: 3rem; position: relative; font-weight: bold; padding-left: 1.5rem;}
#main_content h2 p::after {position: absolute; content:''; display:block; width: 0.5rem; height: 0.5rem; background: #3352a3; border-radius:50%; left: 0; top:50%; transform: translateY(-50%);}
#main_content ul {display:flex; flex-flow:column;}
#main_content ul li {margin-bottom: 1.5rem;}
#main_content ul li:last-child {margin-bottom: 0;}
#main_content ul li .qa_q {background: #fff; border:1px solid #ddd; color:#333; font-size:2rem; line-height: 1.4; padding: 1.3rem;}
#main_content ul li .qa_q.on {background: #ede7f6; border: 1px solid #ddd; color:#000;}
#main_content ul li .qa_a {border:1px solid #ddd; border-top: 0; display: none; font-size:1.8rem; color: #777; line-height: 1.6; padding: 1.3rem;}
#main_content ul li .qa_a.on {display: block;}