body {
  font-family: Georgia, serif;
  margin: 0;
  padding: 0;
  height: 100%;
  position: relative;
  background: white;
  z-index: 0; /* 确保比伪元素高 */
}

.page-wrapper p {
  line-height: 1.5;
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.6); /* 半透明白色 */
  z-index: -1;
}

.page-wrapper {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 40px;
  background: rgba(255, 255, 255, 0.6); /* 半透明白色 */
  border-radius: 20px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
  backdrop-filter: none;
  overflow: visible;
  z-index: -1;
}

.back-to-top {
  position: fixed; /* 固定在视口 */
  bottom: 30px; /* 距离底部 30px */
  right: 30px; /* 距离右边 30px */
  display: inline-block;
  padding: 10px 16px;
  background: rgba(57, 98, 24); /* 深绿色背景 */
  border: 2px solid rgba(224, 239, 236, 0.6); /* 半透明绿色边框 */
  border-radius: 6px;
  color: white;
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 1000; /* 保证在最上层 */
}

.back-to-top:hover {
  background: rgba(57, 98, 24); /* 悬停时深绿色 */
  text-decoration: underline;
  transform: translateY(-2px); /* 向上浮动一点 */
}

/* Services Section 样式 */
.services-section {
  padding: 24px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr); /* 每行两个 */
  gap: 16px;
  max-width: 650px;
  margin: 0 auto;
}

.service-card {
  background: rgba(255, 255, 255, 0.85); /* 半透明白色底 */
  backdrop-filter: blur(4px); /* 毛玻璃效果 */
  -webkit-backdrop-filter: blur(4px);
  border-radius: 10px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.12); /* 轻微阴影 */
  padding: 20px 16px 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
  min-height: 80px;
  text-decoration: none; /* 避免链接下划线 */
  color: inherit; /* 保持文字颜色 */
}

.service-card:hover {
  transform: translateY(-4px); /* 向上浮动一点 */
  box-shadow: 0 8px 20px rgba(0,0,0,0.20); /* 阴影稍微加深 */
  background: rgba(255, 255, 255, 0.5); /* 背景变得稍亮 */
  cursor: pointer;
}

.service-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: -36px; /* 图标抬升 */
  background: rgba(255,255,255,0.6);
  border-radius: 50%;
  padding: 8px;
  box-shadow: 0 6px 14px rgba(0,0,0,0.08);
  color: rgb(57,98,24); /* 图标颜色 */
}

.service-name {
  margin-top: 12px;
  font-weight: 700;
  font-size: 1.05rem;
  color: #222;
}

/* 响应式：窄屏改为一列 */
@media (max-width: 700px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
  .service-icon {
    margin-top: 0;
    transform: translateY(-24px);
  }
}