*{margin:0;padding:0;box-sizing:border-box}
html,body{width:100%;height:100%;background:#0d1508;overflow:hidden;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  -webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}
#wrap{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
#cv{background:#4a7c1f;image-rendering:auto;
  box-shadow:0 0 0 4px #2b1d0e,0 0 40px rgba(0,0,0,.8);border-radius:6px;
  transform-origin:center center;cursor:default}
#hint{position:absolute;bottom:14px;left:50%;transform:translateX(-50%);
  color:#ffe9a8;font-size:13px;letter-spacing:2px;opacity:.75;pointer-events:none;
  text-shadow:0 2px 4px #000;transition:opacity .4s}
#hint.gone{opacity:0}