:root{color-scheme:dark;--paper:#f4f1ea;--muted:#a4ada3;--line:#34433d;--red:#f45140}*{box-sizing:border-box}body{margin:0;background:#101713;color:var(--paper);font:14px/1.6 'Microsoft YaHei','PingFang SC',sans-serif}a{color:inherit;text-decoration:none}button,select{font:inherit;color:inherit;background:#203028;border:1px solid #45574b;padding:9px 15px;cursor:pointer}button:hover,a:hover{color:#ff998b}button:disabled{opacity:.35;cursor:default}button:focus-visible,a:focus-visible,select:focus-visible{outline:2px solid #ff8c7e;outline-offset:3px}[hidden]{display:none!important}.viewer-header{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:20px 32px;border-bottom:1px solid var(--line)}.viewer-brand{display:flex;align-items:center;gap:22px}.viewer-brand img{width:145px;max-height:38px}.viewer-brand span{font-size:14px}.viewer-brand small{display:block;color:var(--muted);font-size:11px}.viewer-links{display:flex;gap:24px;font-size:12px}main{max-width:1440px;margin:auto;padding:24px 32px}.stage{display:flex;justify-content:center;align-items:center;background:#080b09;position:relative;touch-action:pan-y;aspect-ratio:16/9;max-height:calc(100dvh - 225px);min-height:160px;width:100%;overflow:hidden}.stage img{width:100%;height:100%;object-fit:contain;max-height:inherit;user-select:none;pointer-events:none}.stage p{position:absolute;background:#15271de8;padding:25px}.toolbar{display:flex;align-items:center;gap:14px;margin-top:18px}.page-controls{display:flex;align-items:center;gap:15px}.page-controls button{font-size:20px;padding:5px 15px}#counter{min-width:70px;text-align:center;font-variant-numeric:tabular-nums}.slide-select{flex:1;min-width:0}.slide-select select{width:100%;max-width:660px;min-width:0;text-overflow:ellipsis}.viewer-caption{display:flex;justify-content:space-between;gap:20px;margin-top:16px;font-size:12px;color:#bcc7b9}.viewer-caption small{font-size:11px;color:#91a18f}.viewer-status{color:#fca79b;font-size:12px}.slide-list{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;padding:25px 0}.slide-list button{padding:6px;text-align:left;background:transparent;font-size:11px}.slide-list img{width:100%;height:auto;aspect-ratio:16/9;object-fit:contain;display:block;margin-bottom:8px}.slide-list button[aria-current=true]{border:2px solid var(--red)}.sr-only{position:absolute;width:1px;height:1px;clip:rect(0,0,0,0);overflow:hidden}#viewer:fullscreen{background:#080b09;max-width:none;width:100%;height:100%;display:flex;flex-direction:column;justify-content:center;padding:12px 24px}#viewer:fullscreen .stage{max-height:calc(100dvh - 95px);flex:1;min-height:0;aspect-ratio:auto}#viewer:fullscreen .toolbar{margin-top:10px}#viewer:fullscreen .viewer-caption{margin-top:10px}#viewer:fullscreen .viewer-status{display:none}#viewer:fullscreen .slide-list{position:absolute;inset:0;background:#101713;overflow:auto;padding:70px 30px 30px;z-index:3}#viewer:fullscreen #overview{position:relative;z-index:4}@media(max-width:750px){.viewer-header{padding:16px 18px;flex-wrap:wrap;gap:16px}.viewer-brand{gap:16px}.viewer-brand img{width:115px}.viewer-brand span{font-size:12px}.viewer-links{gap:22px;font-size:11px;width:100%}main{padding:18px 14px}.stage{max-height:none;min-height:0}.toolbar{gap:10px;flex-wrap:wrap}.slide-select{order:5;flex-basis:100%}.slide-select select{max-width:none}.page-controls{margin-right:auto}.page-controls button{padding:4px 12px}.toolbar>button{padding:8px 12px;font-size:12px}.viewer-caption{display:block}.viewer-caption small{display:block;margin-top:8px}.slide-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}#viewer:fullscreen .slide-select,#viewer:fullscreen .viewer-caption{display:none}#viewer:fullscreen .stage{max-height:calc(100dvh - 65px)}}