.sub_title2 {width: 1280px; border-bottom: 1px solid #ddd; padding: 30px 0; margin: 30px auto 80px auto;}
.sub_title2 h1 {text-align: center; font-size: 36px; font-weight: 400; color:#000; }
.sub_title_line {width: 220px; height: 2px; background: #3f5aab; margin: 0 auto; position: relative; top: 31px;}