/* 公告渐变流动特效 */
.announcement-gradient {
  padding: 12px 15px;
  background: linear-gradient(135deg, rgba(73,177,245,0.1), rgba(0,196,182,0.1));
  border-left: 4px solid #49B1F5;
  border-radius: 6px;
  font-size: 14px;
  line-height: 2;
}

.announcement-gradient p {
  margin: 0;
  color: #2c3e50;
  font-weight: 500;
  background: linear-gradient(90deg, #49B1F5, #00c4b6, #FF7242, #49B1F5);
  background-size: 300% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-flow 8s ease infinite;
}

.announcement-gradient p:nth-child(2) {
  animation-delay: 0.5s;
}

.announcement-gradient p:nth-child(3) {
  animation-delay: 1s;
}

@keyframes gradient-flow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* 深色模式适配 */
[data-theme="dark"] .announcement-gradient {
  background: linear-gradient(135deg, rgba(73,177,245,0.15), rgba(0,196,182,0.15));
}

[data-theme="dark"] .announcement-gradient p {
  color: #e0e0e0;
}