.history-wrapper{margin-top:170px}@media screen and (max-width:770px){.history-wrapper{margin-top:80px}}.history-wrapper .main_title{display:flex;justify-content:space-between;align-items:center}.history-wrapper .left-part{display:flex;justify-content:flex-start;align-items:center}.history-wrapper .main-title_left{font-size:36px;font-weight:400;color:#212121}.history-wrapper .main-title_right{font-size:30px;font-weight:400;color:#0eadb7;margin-left:25px}.history-wrapper .main_desc{margin-top:30px;font-size:18px;font-weight:400;color:#828282;line-height:1.5}.history-wrapper .main_course{padding-bottom:20px;position:relative}.history-wrapper .main_course:before{position:absolute;display:block;content:"";width:0;height:0;border-left:14px solid transparent;border-right:14px solid transparent;border-bottom:14px solid #e8ecf1;left:346px;top:-70px}.history-wrapper .main_course .main_line{position:absolute;border-left:6px dotted #e8ecf1;height:calc(100% + 50px);left:357px;top:-50px;z-index:-1}@media screen and (max-width:770px){.history-wrapper .main_course .main_line,.history-wrapper .main_course:before{display:none}}.history-wrapper .course_flex-wrapper{margin-top:170px}.history-wrapper .course_flex-wrapper .main-course_round{width:30px;height:30px;border-radius:100%;background-color:#0eadb7}.history-wrapper .course_flex-wrapper:nth-child(2n) .main-course_round{width:50px;height:50px}.history-wrapper .course_flex-wrapper .main-course_right{width:580px}.history-wrapper .course_flex-wrapper .main-course_title{color:#0eadb7;text-shadow:2.06px 3.429px 2.5px rgba(66,166,171,.36);display:flex;justify-content:flex-start;align-items:center}.history-wrapper .course_flex-wrapper .main-course_year{font-size:48px}.history-wrapper .course_flex-wrapper .main-course_theme{font-size:24px;margin-left:40px}.history-wrapper .course_flex-wrapper .main-course_desc{font-size:16px;font-weight:400;color:#828282;line-height:1.5;margin-top:25px}@media screen and (max-width:770px){.history-wrapper .course_flex-wrapper{margin-top:80px}.history-wrapper .course_flex-wrapper .main-course_round{display:none}.history-wrapper .course_flex-wrapper .main-course_right{width:100%;margin-top:40px}.history-wrapper .course_flex-wrapper .main-course_theme{font-size:24px;margin-left:20px}}.history-wrapper .bottom-content{margin:150px 0}.history-wrapper .bottom-content .flex-wrapper{align-items:flex-start}.history-wrapper .bottom-content .left-content{flex:0 0 295px}.history-wrapper .bottom-content .left-content .sharp-desc{font-size:18px;font-weight:400;color:#0eadb7;line-height:1.5}.history-wrapper .bottom-content .left-content .desc{margin-top:36px;font-size:16px;font-weight:400;color:#6f6f6f;line-height:1.5}.history-wrapper .bottom-content .left-content .left-content_icon{width:38px;height:38px;border-radius:19px;background-color:#0eadb7;display:flex;justify-content:center;align-items:center;color:#fff;font-size:20px;margin-top:100px;cursor:pointer}.history-wrapper .bottom-content .left-content .left-content_icon img{filter:brightness(100)}.history-wrapper .bottom-content .right-content{display:flex}.history-wrapper .bottom-content .right-content .right-item{margin-left:20px;width:320px}.history-wrapper .bottom-content .right-content .right-item:first-child{margin-left:0}.history-wrapper .bottom-content .right-content .right-item .desc-box{margin-top:40px;padding-right:16px}.history-wrapper .bottom-content .right-content .right-item .desc-box .desc-title{font-size:18px;color:#2d2d2d;font-weight:700}.history-wrapper .bottom-content .right-content .right-item .desc-box .desc-content{margin-top:20px;font-size:16px;font-weight:400;color:#828282;line-height:1.5}@media screen and (max-width:770px){.history-wrapper .bottom-content{margin:80px 0}.history-wrapper .bottom-content .right-content{flex-direction:column;margin-top:60px}.history-wrapper .bottom-content .right-content .right-item{margin-left:0;margin-top:40px;width:100%}.history-wrapper .bottom-content .right-content .right-item:first-child{margin-top:0}}