.main_content {}
.main_content .content_list {padding: 1.4rem}
.main_content .content_list li {border: 1px solid #eee;margin-bottom: 0.5rem;}
.main_content .content_list li h3{font-size: 1.8rem;font-weight: bold;padding: 2rem 1.4rem; line-height:1.3}
.main_content .content_list li.on h3{color: #8127cc; margin-bottom: 1rem;background: #f6ebff; border: 1px solid #c6b1e4;}
.main_content .content_list li .list_txt {display :none;padding:1.4rem}
.main_content .content_list li.on .list_txt {display :block}
.main_content .content_list li .list_txt pre {font-size: 1.5rem;margin-bottom: 1rem;line-height: 1.3;}
.main_content .content_list li .list_txt pre.title {font-size: 1.6rem;font-weight: bold;}
.main_content .content_list li .list_txt pre.content {font-size: 1.5rem;margin-bottom: 1rem;line-height: 1.4;}
.main_content .content_list li .list_txt .tip_box{background: #fbf6ff;padding: 1rem;margin-bottom:1rem}
.main_content .content_list li .list_txt .tip_box .title{font-weight: normal;margin-bottom: 0.5rem;font-size: 1.3rem;}
.main_content .content_list li .list_txt .tip_box .content{}