:root{--bg-base:#f6f6f8;--bg-white:#fff;--bg-card:#fff;--bg-surface:#f1f5f9;--bg-muted:#e2e8f0;--bg-section:#eff6ff;--gradient:linear-gradient(135deg,#2463eb,#3b82f6);--gradient-bg:linear-gradient(180deg,#f6f6f8,#f1f5f9);--primary:#2463eb;--primary-dark:#1d4ed8;--primary-bg:#eff6ff;--primary-border:#bfdbfe;--text-primary:#0f172a;--text-secondary:#334155;--text-muted:#64748b;--border:#e2e8f0;--border-light:#f1f5f9;--shadow-card:0 1px 3px rgba(0,0,0,0.06),0 4px 12px rgba(0,0,0,0.04);--shadow-hover:0 10px 25px rgba(36,99,235,0.1),0 4px 10px rgba(36,99,235,0.08);--radius:12px;--radius-lg:20px;--nav-height:64px;--ease:cubic-bezier(0.4,0,0.2,1);--transition:all 0.2s cubic-bezier(0.4,0,0.2,1)}.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px;padding:24px;list-style:none;margin:0}.course-card{background:#fff;border:1px solid #f1f5f9;border-radius:20px;overflow:hidden;cursor:pointer;display:block;transition:transform .3s 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.card-rating .stars i.el-icon-star-on{color:#f59e0b}.course-card .card-rating .stars i.el-icon-star-off{color:#d1d5db}.course-card .card-rating .rating-score{font-size:12px;font-weight:700;color:#f59e0b}.course-card .card-rating .rating-count{font-size:11px;color:#94a3b8}.course-card .card-meta{display:flex;align-items:center;gap:14px;margin-bottom:12px}.course-card .card-meta .meta-item{display:flex;align-items:center;gap:4px;font-size:12px;color:#94a3b8}.course-card .card-meta .meta-item i{font-size:13px}.course-card .card-footer{display:flex;align-items:center;justify-content:space-between;padding-top:12px;border-top:1px solid #f1f5f9}.course-card .card-footer .price-num{font-size:18px;font-weight:900;color:#2463eb}.course-card .card-footer .price-free{font-size:15px;font-weight:700;color:#10b981}.course-card .card-footer .card-action{font-size:12px;color:#94a3b8;display:flex;align-items:center;gap:2px;transition:color .2s}.course-card .card-footer .card-action 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#ccc;padding:5px 0}.major_box .subject_child .child_title[data-v-e7fc46fe]{color:#adadad;margin-right:10px;font-size:14px;font-weight:400}.major_box .subject_child .child_list>ul[data-v-e7fc46fe]{display:flex;flex-wrap:wrap}.major_box .subject_child .child_list>ul>li[data-v-e7fc46fe]{margin:5px 10px;padding:2px 15px;border-radius:5px;border:1px solid transparent;font-size:14px;font-weight:400;color:#656565;transition:all .2s;cursor:pointer}.major_box .subject_child .child_list>ul>li[data-v-e7fc46fe]:hover{border:1px solid #1890ff;box-sizing:border-box;color:#1890ff}.major_box .subject_child .child_list>ul .li_avtive[data-v-e7fc46fe]{background:#1890ff;color:#fff;border:1px solid transparent}.major_box .subject_child .child_list>ul .li_avtive[data-v-e7fc46fe]:hover{color:#fff}.member_box .member_list>ul[data-v-0212040f]{display:flex;flex-wrap:wrap}.member_box .member_list>ul>li[data-v-0212040f]{margin-right:10px;padding:2px 15px;border-radius:5px;border:1px solid transparent;font-size:14px;font-weight:400;color:#656565;transition:all .2s;cursor:pointer;margin-bottom:10px}.member_box .member_list>ul>li[data-v-0212040f]:hover{border:1px solid #1890ff;box-sizing:border-box;color:#1890ff}.member_box .member_list>ul .li_avtive[data-v-0212040f]{background:#1890ff;color:#fff;border:1px solid transparent}.member_box .member_list>ul .li_avtive[data-v-0212040f]:hover{color:#fff}.course_nav{max-width:1200px;width:85%;box-shadow:0 2px 9px 1px rgba(240,241,245,.98);margin:0 auto;padding:15px 20px 5px;box-sizing:border-box}.course_nav>p{border-bottom:1px solid #f5f5f5;padding-bottom:20px}.course_nav>p>a{font-size:14px;font-weight:400;color:#656565;transition:all .2s;display:block}.course_nav>p>a:hover{color:#1890ff}.course_nav .course_nav_box{margin:15px 0;display:flex}.course_nav .course_nav_box>label{color:#adadad;width:80px;margin-right:30px;font-size:14px;font-weight:400;padding:5px 0;box-sizing:border-box}.course_list_box{max-width:1200px;width:85%;box-shadow:0 8px 8px 0 hsla(0,0%,79.6%,.1);margin:20px auto}.course_list_box .list_box{padding-bottom:60px}