html:has(#intro.intro-section.is-playing:not(.is-ended)),html:has(#intro.intro-section.is-playing:not(.is-ended)) body{overflow:hidden;height:100%;overscroll-behavior:none;touch-action:none}html:has(#intro.intro-section.is-playing:not(.is-ended)) #site-shell.is-concealed{position:fixed;inset:0;width:100%;height:0;overflow:hidden;visibility:hidden;pointer-events:none}