body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: rgba(152, 255, 152, 0.2); /* 粉绿背景色，透明度为50% */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

/* 标签样式 */
.label {
  padding: 10px 15px;
  margin: 5px;
  background-color: #ff69b4;
  border-radius: 5px;
  color: white;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.3s;
  text-align: center;
}

.label:hover {
  background-color: #ff1493;
}

/* 顶部标签 */
.top-label,
.bottom-label {
  display: flex;
  justify-content: center;
  margin: 10px 0;
}

/* 左右标签 */
.left-labels,
.right-labels {
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* 主内容布局 */
.main-content {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin: 20px 0;
}

/* 中间的爱心容器 */
.heart-container {
  width: 560px; /* 增加宽度 */
  height: 560px; /* 增加高度 */
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 20px;
  /* background-color: #ff3593; */
}

.heart {
  width: 100%;
  height: 100%;
  /* 保证 SVG 图像自适应 */
}

/* 显示文字的样式 */
.heart-text {
  font-size: 24px;
  font-weight: bold;
  color: #fc38f6;
  text-align: center;
  margin-bottom: 20px;
}

/* 心电图线容器 */
.heartbeat-container {
  position: absolute;
  top: 60%; /* 将心电图线垂直居中 */
  left: 0;
  width: 100%;
  height: 100px;
  pointer-events: none; /* 避免心电图线影响点击事件 */
}

.heartbeat {
  width: 100%;
  height: 100%;
}

@keyframes heartbeat {
  0% {
    stroke-dasharray: 0, 400;
  }
  100% {
    stroke-dasharray: 400, 0;
  }
}

.heartbeat polyline {
  animation: heartbeat 2s linear infinite;
}

/* 文字渐变效果 */
.page-title {
  font-size: 4rem;
  font-weight: bold;
  background: linear-gradient(
    90deg,
    #ff6b6b,
    /* 红色 */ #ffd166,
    /* 黄色 */ #06d6a0,
    /* 绿色 */ #118ab2,
    /* 蓝色 */ #073b4c,
    /* 深蓝 */ #6a4c93,
    /* 紫色 */ #ff6b6b /* 红色 */
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-size: 200% 200%;
  animation: gradient 5s linear infinite;
  position: relative;
  z-index: 2;
}

/* 文字渐变动画 */
@keyframes gradient {
  0% {
    background-position: 0% 50%;
  }
  100% {
    background-position: 100% 50%;
  }
}