body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  background: url('../img/backckground.webp') no-repeat center center / cover;
  color: #fff;
  text-align: center;
  position: relative;
}
.container {
  max-width: 480px;
  margin: 0 auto;
  padding: 15px;
}
video {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5);
  cursor: pointer;
}
.description {
  margin: 15px 0;
  font-size: 16px;
  line-height: 1.5;
}
img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  margin-top: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

/* 下载按钮样式 */
.download-btn {
  display: inline-block;
  padding: 15px 40px;
  background: linear-gradient(90deg, #ff5722, #ff795e);
  color: #fff;
  font-size: 20px;
  font-weight: bold;
  text-decoration: none;
  border-radius: 12px;
  box-shadow: 0 6px 12px rgba(0,0,0,0.3);
  transition: all 0.2s ease;
}
.download-btn:hover {
  background: linear-gradient(90deg, #e64a19, #ff6347);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.4);
}

/* 视频结束弹窗 */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0,0,0,0.85);
  display: none;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  z-index: 9999;
  padding: 20px;
  box-sizing: border-box;
}
.overlay.show {
  display: flex;
}
.overlay h2 {
  color: #fff;
  font-size: 24px;
  margin-bottom: 20px;
}

/* 海报弹窗 */
.poster-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0,0,0,0.85);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  padding: 20px;
  box-sizing: border-box;
  overflow: hidden;
}
.poster-content {
  position: relative;
  max-width: 480px;
  width: 100%;
  text-align: center;
}
.poster-content img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  display: block;
}
#posterDownloadBtn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
  padding: 15px 40px;
  background: linear-gradient(90deg, #ff5722, #ff795e);
  color: #fff;
  font-size: 20px;
  font-weight: bold;
  text-decoration: none;
  border-radius: 12px;
  box-shadow: 0 6px 12px rgba(0,0,0,0.3);
  pointer-events: auto;
}
#posterDownloadBtn:hover {
  background: linear-gradient(90deg, #e64a19, #ff6347);
  transform: translate(-50%, -50%) translateY(-2px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.4);
}