.video-shell-yi{aspect-ratio:16/9;background-color:#0d1117;border-radius:.375rem;width:100%;position:relative;overflow:hidden}.video-shell-yi video{object-fit:contain;width:100%;height:100%;display:block}.video-shell-yi video::-webkit-media-controls-download-button{display:none!important}.video-shell-yi video::-webkit-media-controls-overlay-play-button{display:none!important}.video-shell-yi video::-webkit-media-controls-overlay-cast-button{display:none!important}.video-shell-yi video::-webkit-media-controls-cast-button{display:none!important}.video-shell-yi video::-webkit-media-controls-picture-in-picture-button{display:none!important}.video-watermark-visible{z-index:3;color:#ffffff85;letter-spacing:.04em;pointer-events:none;-webkit-user-select:none;user-select:none;background:#0003;border-radius:.25rem;padding:.25rem .5rem;font-size:.75rem;position:absolute;top:12%;left:12%}.video-watermark-hidden{opacity:.01;pointer-events:none;width:1px;height:1px;position:absolute;top:0;left:0}.chapter-list-yi .list-group-item-action{cursor:pointer;text-align:left;background:0 0;border:0;width:100%}.chapter-list-yi .list-group-item-action.active{color:inherit;background-color:#d4af3726}.chapter-panel-yi{flex-direction:column;display:flex}.chapter-list-yi{flex:auto;min-height:0;max-height:60vh;overflow-y:auto}@media (width>=1200px){.video-page-yi .row.g-4>.col-xl-4{min-height:0;display:flex}.video-page-yi .row.g-4>.col-xl-4 .chapter-panel-yi{flex:auto;min-height:0;max-height:60vh;display:flex;overflow:hidden;margin-bottom:0!important}.video-page-yi .row.g-4>.col-xl-4 .chapter-list-yi{min-height:0;max-height:60vh;overflow-y:auto}}body.page-video .btn.btn-outline-secondary:hover,body.page-video .btn.btn-outline-secondary:focus,body.page-video .btn.btn-outline-secondary:active{color:var(--bs-secondary);border-color:var(--bs-secondary);background-color:#0000}body.page-video .btn.btn-outline-secondary.active,body.page-video .btn.btn-outline-secondary.active:hover,body.page-video .btn.btn-outline-secondary.active:focus,body.page-video .btn.btn-outline-secondary.active:active{color:var(--bs-btn-active-color);background-color:var(--bs-btn-active-bg);border-color:var(--bs-btn-active-border-color)}body.page-video .btn-yi-outline:hover,body.page-video .btn-yi-outline:focus,body.page-video .btn-yi-outline:active{color:var(--yi-paper);background-color:#0000;border-color:#c9a227a6}body.page-video .btn-yi-gold:hover,body.page-video .btn-yi-gold:focus,body.page-video .btn-yi-gold:active{color:var(--yi-ink);background-color:var(--yi-gold);border-color:var(--yi-gold-dim)}body.page-video .navbar-yi .btn.btn-outline-light:hover,body.page-video .navbar-yi .btn.btn-outline-light:focus,body.page-video .navbar-yi .btn.btn-outline-light:active{color:#f8f9fa;background-color:#0000;border-color:#f8f9fa}body.page-video .navbar-yi .lang-switch .dropdown-toggle:hover,body.page-video .navbar-yi .lang-switch .dropdown-toggle:focus,body.page-video .navbar-yi .lang-switch .dropdown-toggle:active{border-color:#c9a2278c}body.page-video .navbar-yi .navbar-toggler:hover,body.page-video .navbar-yi .navbar-toggler:focus{background-color:#f6f1e714;border-color:#c9a22773}body.page-video .chapter-list-yi .list-group-item-action:hover,body.page-video .chapter-list-yi .list-group-item-action:focus{color:inherit;background-color:#0000}body.page-video .chapter-list-yi .list-group-item-action.active:hover,body.page-video .chapter-list-yi .list-group-item-action.active:focus,body.page-video .chapter-list-yi .list-group-item-action.active:active{color:inherit;background-color:#d4af3726}@media (width<=575.98px){.video-page-yi .card-yi.p-4{padding:1rem!important}.video-shell-yi{border-radius:.25rem}.chapter-list-yi{max-height:none}}