.sub_title2 {width: 100%; border-bottom: 1px solid #e4e4e4; padding: 20px 0; margin: 20px auto 50px auto;}
.sub_title2 h1 {text-align: center; font-size: 24px;  color:#333; font-weight: 500; }
.sub_title_line {width:180px; height: 2px; background: #15116f; margin: 0 auto; position: relative; top: 21px;}