.course-management-layout-module__WEcRXW__layoutContainer{background-color:var(--teacher-bg-body);width:100%;height:100%;display:flex}.course-management-layout-module__WEcRXW__contentArea{flex-grow:1;padding:0;position:relative;overflow-y:auto}.course-management-layout-module__WEcRXW__notFound{width:100%;height:100%;color:var(--teacher-text-tertiary);background-color:var(--teacher-white);flex-direction:column;justify-content:center;align-items:center;gap:16px;display:flex}.course-management-layout-module__WEcRXW__notFound h2{color:var(--teacher-text-primary);font-size:24px}@keyframes course-management-layout-module__WEcRXW__skeleton-loading{0%{background-position:200% 0}to{background-position:-200% 0}}.course-management-layout-module__WEcRXW__sidebarSkeleton{background-color:var(--teacher-white);border-right:1px solid var(--teacher-border-color);flex-direction:column;flex-shrink:0;align-items:center;width:260px;height:100%;padding:24px 16px;display:flex}.course-management-layout-module__WEcRXW__avatarSkeleton{background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0 50%,#f0f0f0 75%) 0 0/200% 100%;border-radius:50%;width:64px;height:64px;margin-bottom:12px;animation:1.5s infinite course-management-layout-module__WEcRXW__skeleton-loading}.course-management-layout-module__WEcRXW__textLineSkeleton{background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0 50%,#f0f0f0 75%) 0 0/200% 100%;border-radius:4px;height:16px;margin-bottom:8px;animation:1.5s infinite course-management-layout-module__WEcRXW__skeleton-loading}.course-management-layout-module__WEcRXW__menuSkeleton{flex-direction:column;gap:12px;width:100%;margin-top:40px;display:flex}.course-management-layout-module__WEcRXW__menuItemSkeleton{background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0 50%,#f0f0f0 75%) 0 0/200% 100%;border-radius:8px;height:48px;animation:1.5s infinite course-management-layout-module__WEcRXW__skeleton-loading}.course-management-layout-module__WEcRXW__contentLoading{justify-content:center;align-items:center;width:100%;height:100%;display:flex}.course-management-layout-module__WEcRXW__spinner{border:5px solid var(--teacher-primary-light);border-top-color:var(--teacher-primary);border-radius:50%;width:48px;height:48px;animation:1s linear infinite course-management-layout-module__WEcRXW__spin}@keyframes course-management-layout-module__WEcRXW__spin{to{transform:rotate(360deg)}}