/* ✅ 全局修复：防止横向滚动 */
body {
  overflow-x: hidden;
}
/* 卡片样式 */
.info-card {
  flex: 1 1 calc(50% - 20px);
  background: linear-gradient(135deg, #f0f4ff, #e6ecff);
  padding: 20px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease, opacity 0.6s ease;
  opacity: 0;
}

.info-card:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.info-card h2 {
  font-size: 2em;
  color: #2a4d9b;
  margin-bottom: 5px;
}

.info-card p {
  font-size: 1em;
  color: #555;
}

@keyframes fadeIn {
  to { opacity: 1; }
}
#dataset-distribution {
  position: relative;
  width: 100%;
  overflow-x: hidden;
  box-sizing: border-box;
}

/* 主容器 */
#dataset-distribution .container {
  max-width: 2000px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

/* 弹性布局 */
#dataset-distribution .flex-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
}

/* 左右模块 */
#dataset-distribution .text-section {
  flex-basis: 35%;
  padding: 2% 2%;
}

#dataset-distribution .image-section {
  flex-basis: 60%;
  padding: 2% 2%;
}

/* 卡片容器 */
.info-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: flex-start;
}

/* 地图样式 */
#interactive-map {
  width: 100%;
  height: 500px;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

/* 中等屏幕：地图稍微压缩 */
@media (max-width: 1200px) {
  #interactive-map {
    height: 400px;
  }
}

/* ✅ 小屏幕优化 */
@media (max-width: 768px) {
  #dataset-distribution .flex-container {
    flex-direction: column;
    gap: 32px;
    padding: 0 16px;
  }

  #dataset-distribution .text-section,
  #dataset-distribution .image-section {
    flex-basis: 100%;
    padding: 0;
  }

  #interactive-map {
    height: 280px;
  }

  .info-cards {
    justify-content: center;
    gap: 16px;
  }

  .info-card {
    flex: 1 1 100%;
    max-width: 100%;
  }
}

/* ✅ 超小屏幕进一步优化 */
@media (max-width: 480px) {
  .info-card {
    padding: 16px;
  }

  #interactive-map {
    height: 240px;
  }
}