#sub_visual{width:98%;height:250px;margin:0 auto 80px;background:url(/static/images/edu/sub-visual.png) center/cover;border-radius:25px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff}#sub_visual h2{font-size:48px;margin-bottom:10px;font-weight:700}#sub_visual p{font-size:24px}.content_wrap{display:flex;justify-content:space-between;max-width:1200px;margin:0 auto 110px;padding:0 20px;text-align:center}.sidebar{width:120px;margin-right:100px;flex-shrink:0}#ulRankingTab{list-style:none;padding:0;margin:0}#ulRankingTab li{text-align:left;padding:10px 0;margin:10px 0;font-size:18px;color:#767676;cursor:pointer;font-weight:700;border-bottom:2px solid transparent;transition:all .3s}#ulRankingTab li:first-child{padding-top:0;margin-top:0}#ulRankingTab li.active{color:#007bff;border-bottom:2px solid #007bff}.lecture_content{flex-grow:1;text-align:center}.lecture_content>div{display:none}.sec-title{margin-bottom:60px;text-align:center}.sec-title h2{font-size:42px;font-weight:700;margin:20px 0;color:#000;letter-spacing:-1px}.sec-title p{font-size:16px;color:#666;line-height:1.6;margin-bottom:30px}.sec-title hr{border:0;height:4px;background:#111;width:40px;margin:0 auto 20px;border-radius:50px}.info-table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid #dcdcdc;border-radius:20px;overflow:hidden;margin-bottom:60px}.info-table th,.info-table td{padding:24px 20px;font-size:18px!important;line-height:1.6;border-bottom:1px solid #dcdcdc;border-right:1px solid #dcdcdc}.info-table tr:last-child th,.info-table tr:last-child td{border-bottom:none}.info-table th:last-child,.info-table td:last-child{border-right:none}.info-table th{background-color:#f8f9fb;width:30%;text-align:center;font-weight:700;color:#000}.info-table td{background-color:#fff;width:70%;text-align:left;color:#555}.chapter-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-bottom:50px}.chapter-grid:has(>.card:last-child:nth-child(1)){grid-template-columns:repeat(1,1fr)}.chapter-grid:has(>.card:last-child:nth-child(3)){grid-template-columns:repeat(3,1fr)}.card{font-family:MinSans,"sans-serif";border:1px solid #007bff;border-radius:20px;overflow:hidden;text-align:left;background-color:#f9fafc}.card-header{font-family:MinSans,"sans-serif";background-color:#007bff;color:#fff;padding:15px;text-align:center;font-size:16px}.card-header span{font-weight:700;font-size:22px;color:#fff;margin-left:5px}.card-body{font-family:MinSans,"sans-serif";padding:25px 20px;line-height:1.6;min-height:100px;font-size:18px;color:#000}.btn-all{display:inline-block;background-color:#54f;color:#fff;padding:16px 80px;border-radius:20px;font-weight:700;text-decoration:none;font-size:18px;transition:all .3s ease-in-out}.btn-all:hover{background-color:#43e;color:#fff;text-decoration:none}.floating-banner{position:fixed;right:30px;bottom:30px;background-color:#3d4a5d;color:#fff;padding:15px 36px;border-radius:50px;text-align:left;font-size:16px;cursor:pointer;display:flex;align-items:center;gap:10px;transition:bottom .1s ease-out;z-index:100;text-decoration:none}.floating-banner:hover{color:#fff;text-decoration:none}.floating-banner strong{display:block;color:#aed4ff;margin-top:0;font-size:18px}.floating-banner img{width:40px;margin-top:0}