:root{color-scheme:light}*{box-sizing:border-box}html,body,#root{width:100%;height:100%}body{margin:0;overflow:hidden;background:#101723;font-family:Microsoft YaHei,PingFang SC,Noto Sans CJK SC,sans-serif}.deck-shell{width:100vw;height:100vh;display:grid;place-items:center;background:radial-gradient(circle at 15% 20%,rgba(82,139,177,.25),transparent 28%),radial-gradient(circle at 84% 76%,rgba(190,166,119,.18),transparent 30%),#0b1320}.stage{overflow:hidden;background:#fff;box-shadow:0 22px 80px #0000006b}.slide{position:relative;width:1920px;height:1080px;transform-origin:0 0;overflow:hidden;background:#fff;-webkit-user-select:text;user-select:text}.ppt-element{position:absolute;overflow:hidden;background-clip:padding-box;line-height:1}.shape-round{border-radius:13px}.shape-ellipse{border-radius:50%}.shape-snip{clip-path:polygon(0 0,calc(100% - 22px) 0,100% 19px,100% 100%,22px 100%,0 calc(100% - 19px))}.shape-custom{border-radius:44% 56% 48% 52%/58% 46% 54% 42%}.ppt-image>.image-crop,.media-hotspot>.image-crop{position:absolute;inset:0;overflow:hidden}.image-crop img{position:absolute;max-width:none;object-fit:fill;-webkit-user-select:none;user-select:none}.ppt-text{position:absolute;display:flex;flex-direction:column;overflow:hidden;line-height:1.26;white-space:pre-wrap;letter-spacing:0;-webkit-user-select:text;user-select:text}.ppt-text p{margin:0;min-height:1em}.ppt-text span{letter-spacing:0}.is-slide-title{overflow:visible}.is-slide-title .ppt-text{overflow:visible;line-height:1.08}.is-hidden{visibility:hidden}.reveal-down{animation:reveal-down .52s ease-out both;will-change:clip-path}@keyframes reveal-down{0%{clip-path:inset(0 0 100% 0)}to{clip-path:inset(0 0 0 0)}}.has-action{cursor:pointer}.media-hotspot{position:absolute;inset:0;display:block;width:100%;height:100%;padding:0;border:0;background:transparent;cursor:pointer}.media-hotspot video{position:absolute;inset:0;width:100%;height:100%;object-fit:fill;opacity:0;background:#000;transition:opacity .16s ease}.media-hotspot.is-playing video{opacity:1}.selectable-title{position:absolute;left:255px;top:36px;width:1410px;height:120px;z-index:9999;color:transparent;font-size:70px;line-height:1;-webkit-user-select:text;user-select:text;pointer-events:none}.notice-toast{position:absolute;left:50%;top:50%;z-index:10000;min-width:360px;padding:28px 46px;transform:translate(-50%,-50%);border:4px solid rgba(72,116,203,.95);border-radius:18px;background:linear-gradient(180deg,#fffffff5,#e7eefcf5),#fff;box-shadow:0 18px 45px #18376d52,inset 0 0 0 3px #ffffffdb;color:#315aa5;font-size:46px;font-weight:700;text-align:center;letter-spacing:0;animation:notice-pop .18s ease-out both}@keyframes notice-pop{0%{opacity:0;transform:translate(-50%,-48%) scale(.96)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}::selection{background:#568de852}@media(prefers-reduced-motion:reduce){.reveal-down{animation-duration:1ms}.media-hotspot video{transition:none}}