.cover-uploader[data-v-6623682c]{width:200px;height:120px;border:1px dashed #d9d9d9;border-radius:6px;overflow:hidden;cursor:pointer;display:flex;align-items:center;justify-content:center;background:#fafafa;transition:border-color .2s}.cover-uploader[data-v-6623682c]:hover{border-color:#409eff}.cover-img[data-v-6623682c]{width:100%;height:100%;-o-object-fit:cover;object-fit:cover;display:block}.cover-placeholder[data-v-6623682c]{display:flex;flex-direction:column;align-items:center;justify-content:center;color:#8c939d;font-size:12px;gap:6px}.cover-placeholder .el-icon[data-v-6623682c]{font-size:24px}.cover-tip[data-v-6623682c]{color:#999;font-size:12px;margin-top:4px}.course-qrcode-box[data-v-6623682c]{text-align:center;padding:10px 0}.course-qrcode-tip[data-v-6623682c]{font-size:12px;color:#909399;margin-bottom:14px;line-height:1.6}.course-qrcode-img[data-v-6623682c]{width:260px;height:260px;display:block;margin:0 auto;border:1px solid #ebeef5;border-radius:6px}.course-qrcode-code[data-v-6623682c]{margin-top:14px;font-size:14px;color:#303133}.course-qrcode-code b[data-v-6623682c]{color:#409eff;letter-spacing:2px;font-size:18px}