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#dcdfe6;border-radius:4px;cursor:pointer;font-size:14px;background:#fff;box-sizing:border-box}.quick-chip[data-v-1279cb61]:hover{border-color:#409eff}.group-caret[data-v-1279cb61]{margin-left:4px;font-size:12px}.chip-popover-list[data-v-1279cb61]{max-height:min(60vh,480px);overflow-y:auto;overscroll-behavior:contain}.group-popover-item[data-v-1279cb61]{padding:6px 8px;cursor:pointer;border-radius:4px;position:relative}.group-popover-item[data-v-1279cb61]:hover{background:rgba(64,158,255,.1)}.popover-chevron[data-v-1279cb61]{position:absolute;right:8px;top:50%;transform:translateY(-50%);color:#c0c4cc}.popover-back-row[data-v-1279cb61]{font-weight:600;border-bottom:1px solid #ebeef5;margin-bottom:4px}.pay-cta[data-v-79ba563e]{margin:10px 0 20px 0}.cta-inner[data-v-79ba563e],.pay-cta.center[data-v-79ba563e]{display:flex;justify-content:center}.cta-inner[data-v-79ba563e]{align-items:center;background:var(--themeColor);color:#fff;border-radius:9999px;box-shadow:0 8px 24px 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.video-box[data-v-dbc04378]{flex-direction:row-reverse}.edu-play-left[data-v-dbc04378]{display:flex;flex:0 0 clamp(280px,22vw,320px);flex-direction:column;width:clamp(280px,22vw,320px);min-width:280px;max-width:320px;border-right:1px solid #ebeef5;background:#fff}.xm-rtl .edu-play-left[data-v-dbc04378]{border-right:0;border-left:1px solid #ebeef5}.materials-sidebar-resizer[data-v-dbc04378]{position:relative;z-index:2;flex:0 0 9px;width:9px;margin:0 -4px;outline:none;cursor:col-resize}.materials-sidebar-resizer[data-v-dbc04378]:before{position:absolute;top:0;bottom:0;left:4px;width:2px;background:transparent;content:"";transition:background-color .15s ease}.materials-sidebar-resizer.is-resizing[data-v-dbc04378]:before,.materials-sidebar-resizer[data-v-dbc04378]:focus-visible:before,.materials-sidebar-resizer[data-v-dbc04378]:hover:before{background:var(--themeColor)}.section-card-list[data-v-dbc04378]{min-height:0;max-height:calc(100vh - 300px);padding:2px 0 10px}.edu-play-right[data-v-dbc04378],.section-card-list[data-v-dbc04378]{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;scrollbar-color:#c7d2e0 transparent;scrollbar-width:thin}.edu-play-right[data-v-dbc04378]{box-sizing:border-box;min-width:0;padding:20px;background-color:#f8f9fb;max-height:calc(100vh - 250px);scroll-margin-top:72px}.materials-sidebar-title[data-v-dbc04378]{flex:0 0 auto;padding:18px 16px 10px;color:#475467;font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.locked-overlay[data-v-dbc04378]{position:relative;height:100%;display:flex;padding:1rem;align-items:center;justify-content:center;background:rgba(0,0,0,.8)}.overlay-inner[data-v-dbc04378]{display:flex;align-items:center;justify-content:center;width:100%;flex-direction:column;gap:16px;text-align:center}.overlay-title[data-v-dbc04378]{color:#fff;font-size:20px;font-weight:700;text-shadow:0 2px 8px rgba(0,0,0,.3)}[data-v-dbc04378] .el-card__body{padding:0}.empty-tip[data-v-dbc04378]{height:100%;display:flex;align-items:center;justify-content:center;color:#909399;font-size:.95rem}[data-v-dbc04378] .empty-tip .el-empty{margin:0}.xm-rtl[data-v-dbc04378]{text-align:right}.xm-rtl[data-v-dbc04378] .el-page-header{direction:rtl}.xm-rtl[data-v-dbc04378] .el-page-header__left{margin-right:0;margin-left:12px}.xm-rtl .edu-play-right[data-v-dbc04378],.xm-rtl .overlay-inner[data-v-dbc04378]{text-align:right}@media screen and (max-width:768px){.mobile-toolbar[data-v-dbc04378]{position:sticky;top:0;z-index:5;min-height:48px;border-bottom:1px solid #e5e7eb;background:#fff}.mobile-toolbar[data-v-dbc04378] .el-page-header__title{color:var(--themeColor);font-weight:600}.materials-workspace[data-v-dbc04378]{border-right:0;border-left:0;border-radius:0}.video-box[data-v-dbc04378]{display:block;min-height:auto}.edu-play-left[data-v-dbc04378]{width:100%;min-width:0;max-width:none;border-right:0;border-left:0}.materials-sidebar-resizer[data-v-dbc04378]{display:none}.section-card-list[data-v-dbc04378]{max-height:none}.edu-play-right[data-v-dbc04378]{max-height:none;padding:0}}