.water-resources {
  font-family: Arial, sans-serif;
  max-width: 600px;
  margin: 0 auto;
  padding: 0px;
  color: #000000a4;
  /* background-color: rgba(255, 255, 255, 0); */
  text-align: center;
}
.data-card {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 10px;
  margin-bottom: 20px;
  /* box-shadow: 0 0 10px rgba(0, 0, 0, 0.2); */
  margin: 5rem 0;
}
.data-card h2 {
  color: #000000a4;
  margin-top: 0;
  font-size: 20px;
  margin-bottom: 20px;
}
.new-comparison {
  display: flex;
  justify-content: space-around;
  align-items: flex-end;
  margin-top: 20px;
}
.drop-container {
  text-align: center;
}
.large-drop {
  width: 100px;
  height: 100px;
  background: rgba(163, 216, 255, 0.2);
  border-radius: 0 50% 50% 50%;
  transform: rotate(45deg);
  display: inline-block;
  position: relative;
  overflow: hidden;
  border: 2px solid #a3d8ff;
  margin-top: 20px;
}
.drop-fill {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(163, 216, 255, 0.6);
  transition: height 1s ease-in-out;
}
.water {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(163, 216, 255, 0.6);
}
.water-wave {
  width: 200%;
  position: absolute;
  bottom: 100%;
}
.water-wave-back {
  right: 0;
  fill: #a3d8ff;
  animation: wave-back 3s infinite linear; /* 从1.4s改为3s */
}
.water-wave-front {
  left: 0;
  fill: rgba(163, 216, 255, 0.8);
  animation: wave-front 1.5s infinite linear; /* 从0.7s改为1.5s */
}
@keyframes wave-front {
  100% {
    transform: translate(-50%, 0);
  }
}
@keyframes wave-back {
  100% {
    transform: translate(50%, 0);
  }
}
.data-source {
  font-size: 12px;
  margin-top: 20px;
  color: #00000093;
}
.comparison-label {
  margin-bottom: 20px;
  font-weight: bold;
}