.course-maintenance[data-v-c6961c5c]{min-height:100vh;padding-top:120px;padding-bottom:60px}.layout[data-v-c6961c5c]{width:1212px;max-width:100%;margin:0 auto;padding:0 15px}.clearfix[data-v-c6961c5c]:after{content:"";display:table;clear:both}.topbar[data-v-c6961c5c]{margin-top:20px;background:#e5f0ff;padding:15px;border-radius:8px;margin-bottom:20px;box-shadow:0 2px 8px rgba(0,0,0,.05)}.topbar .back a[data-v-c6961c5c]{color:var(--primary-color);text-decoration:none;font-weight:500;display:inline-flex;align-items:center}.topbar .back a[data-v-c6961c5c]:before{content:"←";margin-right:5px}.topbar .tips[data-v-c6961c5c]{margin-top:10px;color:#4a5568;font-size:14px;line-height:1.5}.edit-course[data-v-c6961c5c]{background:#f6f6f6;border-radius:10px;padding:50px 20px 50px 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