/* 手册演示引擎样式：与手册页面共用的品牌观感（明暗自动跟随系统，与 manuals.css 一致） */

.demo-player {
  position: relative;
  aspect-ratio: 16 / 10;
  width: 100%;
  overflow: hidden;
  border-radius: 12px;
  background: #09090b;
  border: 1px solid rgb(0 0 0 / 0.12);
}

@media (prefers-color-scheme: dark) {
  .demo-player { border-color: rgb(255 255 255 / 0.14); }
}

/* 适配层：内部固定设计坐标，等比缩放 */
.de-fit {
  position: absolute;
  left: 0;
  top: 0;
  transform-origin: 0 0;
}

/* 虚化背景层：相机推近时露出区域呈现为当前帧的虚化延伸 */
.de-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.de-bg img {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 100%;
  height: 100%;
  transform: translate(-50%, -50%) scale(1.45);
  filter: blur(40px) brightness(0.75);
  transition: opacity 0.35s ease;
  user-select: none;
}

/* 相机层：清晰画布（圆角卡片 + 描边 + 投影） */
.de-stage {
  position: relative;
  width: 100%;
  height: 100%;
  transform-origin: 0 0;
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 0 90px rgb(0 0 0 / 0.65);
  outline: 1px solid rgb(0 0 0 / 0.15);
  transition: transform 0.8s cubic-bezier(0.45, 0.05, 0.35, 1);
  will-change: transform;
}
.de-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  user-select: none;
  transition: opacity 0.35s ease;
}

/* 打字层：与截图中输入框对位 */
.de-type {
  position: absolute;
  display: flex;
  align-items: center;
  font-size: 14px;
  color: #171717;
  opacity: 0;
  user-select: none;
  white-space: nowrap;
}
.de-caret {
  display: inline-block;
  width: 1.5px;
  height: 16px;
  margin-left: 1px;
  background: #171717;
  animation: de-caret-blink 1s steps(1) infinite;
}
@keyframes de-caret-blink { 50% { opacity: 0; } }

/* 合成鼠标 */
.de-cursor {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 10;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.de-cursor svg { transition: transform 0.12s ease; transform-origin: 4px 2px; }
.de-cursor.de-press svg { transform: scale(0.82); }

/* 点击波纹 */
.de-ripple {
  position: absolute;
  z-index: 20;
  pointer-events: none;
  border: 2px solid rgb(0 0 0 / 0.45);
  border-radius: 9999px;
  animation: de-ripple 0.5s ease-out forwards;
}
@keyframes de-ripple {
  from { width: 8px; height: 8px; opacity: 0.9; }
  to { width: 64px; height: 64px; opacity: 0; }
}