.course-detail[data-v-0e221833]{background:transparent;min-height:100vh}.hero[data-v-0e221833]{background:linear-gradient(135deg,#1a1a2eb3,#16213e99),url(/images/bg5.jpg);background-size:cover;background-position:center;color:#fff;padding:80px 20px;text-align:center;display:none}.hero .hero-title[data-v-0e221833]{font-size:36px;margin-bottom:10px}.hero p[data-v-0e221833]{font-size:16px;color:#a0aec0}.container[data-v-0e221833]{max-width:900px;margin:0 auto;padding:40px 20px}.video-wrap[data-v-0e221833]{position:relative;border-radius:10px;overflow:hidden;margin-bottom:20px;cursor:pointer;box-shadow:0 2px 12px #0000000d}.video-cover[data-v-0e221833]{width:100%;max-height:400px;object-fit:cover;display:block}.play-btn[data-v-0e221833]{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:64px;height:64px;background:#0009;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:32px;transition:background .3s}.video-wrap:hover .play-btn[data-v-0e221833]{background:#409effcc}.play-text[data-v-0e221833]{position:absolute;bottom:20px;left:50%;transform:translate(-50%);color:#fff;font-size:14px;background:#00000080;padding:6px 16px;border-radius:20px}.main-card[data-v-0e221833],.section-card[data-v-0e221833]{background:#fff;border-radius:10px;padding:30px;margin-bottom:20px;box-shadow:0 2px 12px #0000000d}.header-row[data-v-0e221833]{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px}.header-info h1[data-v-0e221833]{font-size:22px;color:#333;margin:0 0 10px}.tags[data-v-0e221833]{display:flex;gap:6px}.header-actions[data-v-0e221833]{flex-shrink:0}.info-grid[data-v-0e221833]{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;padding-top:16px;border-top:1px solid #f0f0f0}.info-item[data-v-0e221833]{display:flex;font-size:14px;color:#666}.info-item .label[data-v-0e221833]{color:#999;width:80px;flex-shrink:0;text-align:right;padding-right:12px}.section-title[data-v-0e221833]{font-size:18px;color:#333;margin-bottom:14px;padding-left:12px;border-left:3px solid #2951ff}.rich-content[data-v-0e221833]{font-size:14px;color:#444;line-height:1.8}.rich-content[data-v-0e221833] h3,.rich-content[data-v-0e221833] h4{color:#333;margin:16px 0 8px}.rich-content[data-v-0e221833] ul{padding-left:20px}.rich-content[data-v-0e221833] li{margin-bottom:4px}.rich-content[data-v-0e221833] p{margin-bottom:8px}.rich-content[data-v-0e221833] img{max-width:100%;height:auto}.back-bar[data-v-0e221833]{text-align:center;padding:20px 0 40px}.video-player[data-v-0e221833]{width:100%;max-height:70vh;display:block;outline:none}.video-dialog[data-v-0e221833] .el-dialog__body{padding:0}@media (max-width: 768px){.hero[data-v-0e221833]{padding:50px 20px}.hero .hero-title[data-v-0e221833]{font-size:26px}.hero p[data-v-0e221833]{font-size:14px}.container[data-v-0e221833]{padding:20px 16px}.video-cover[data-v-0e221833]{max-height:200px}.main-card[data-v-0e221833],.section-card[data-v-0e221833]{padding:20px}.header-info h1[data-v-0e221833]{font-size:18px}.header-row[data-v-0e221833]{flex-direction:column;gap:12px}.info-grid[data-v-0e221833]{grid-template-columns:1fr}}