/* 有故事的熊猫公仔 - 图片堆叠 + 在线捐赠按钮 */

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #b9cb68;
}

.page {
  max-width: 750px;
  margin: 0 auto;
  background: #fff;
}

.sec {
  position: relative;
  line-height: 0;
}

.sec img {
  width: 100%;
  height: auto;
  display: block;
}

/* 在线捐赠按钮 - 定位在"点击捐赠我们"文字上 */
.sec--ways {
  position: relative;
}

.btn-donate {
  position: absolute;
  left: 10%;
  bottom: 53%;
  width: 30%;
  height: 8%;
  opacity: 0;
  cursor: pointer;
  border: none;
  background: transparent;
}

.btn-donate:hover {
  background: rgba(255,255,255,0.1);
}