/* 让 iframe 撑满整个课程内容区域 */
.tutor-course-single-content iframe {
width: 100vw !important;
height: 100vh !important;
max-width: 100vw !important;
border: none !important;
display: block;
margin: 0 auto;
}

/* 取消内容区的最大宽度限制和边距 */
.tutor-course-single-content {
max-width: 100vw !important;
padding: 0 !important;
margin: 0 !important;
}

/* 隐藏左边课程目录栏（如果你不需要） */
.tutor-course-sidebar {
display: none !important;
}

/* 让外层容器全宽 */
.tutor-single-course-segment {
max-width: 100vw !important;
padding: 0 !important;
}