/* COGO teacher workspace: remove repeated intro, retain working navigation. */
#main .teacher-toolbar-compact-r1{position:relative;display:flex;align-items:flex-start;gap:12px;width:100%;min-width:0;padding:0 0 12px;margin:0 0 20px;border-bottom:1px solid var(--line,#dbe3ed)}
html body #main .teacher-toolbar-compact-r1>.teacher-nav298{flex:1 1 0;min-width:0;display:flex;flex-wrap:wrap;gap:6px;overflow:visible;margin:0;padding:0;border:0}
#main .teacher-toolbar-compact-r1>.teacher-guide-compact-r1{flex:0 0 auto;white-space:nowrap;margin:0;min-height:40px;padding:9px 13px;font-size:13px}
#main .teacher-title-compact-r1{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;clip-path:inset(50%)!important;white-space:nowrap!important;border:0!important}
html body #main.teacher-child298>.teacher-shell298{margin-bottom:0!important}
#main .teacher-group-compact-r1{min-height:0}
@media(max-width:1000px){#main .teacher-toolbar-compact-r1{flex-wrap:wrap;gap:8px}html body #main .teacher-toolbar-compact-r1>.teacher-nav298{flex-basis:100%}#main .teacher-toolbar-compact-r1>.teacher-guide-compact-r1{margin-left:auto}}
@media(max-width:600px){#main .teacher-toolbar-compact-r1{margin-bottom:16px;padding-bottom:10px}html body #main .teacher-toolbar-compact-r1>.teacher-nav298{gap:3px}#main .teacher-toolbar-compact-r1 .teacher-nav298 button{padding:9px;font-size:12px}#main .teacher-toolbar-compact-r1>.teacher-guide-compact-r1{padding:7px 10px;min-height:36px;font-size:12px}}