/* 公告栏样式 */
.announcement-bar {
  display: flex;
  align-items: center;
  background-color: #f8f0ff;
  border-bottom: 1px solid var(--primary-border);
  padding: 8px 20px;
  position: relative;
  overflow: hidden;
}

.announcement-icon {
  font-size: 16px;
  margin-right: 12px;
  color: var(--primary-color);
  flex-shrink: 0;
}

.announcement-content {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.announcement-scroll {
  display: flex;
  white-space: nowrap;
  animation: scrollText 20s linear infinite;
  cursor: pointer;
}

.announcement-scroll:hover {
  animation-play-state: paused;
}

.announcement-item {
  margin-right: 40px;
  color: var(--text-medium);
  transition: var(--transition-normal);
}

.announcement-item:hover {
  color: var(--primary-color);
}

.announcement-date {
  font-weight: 600;
  margin-right: 8px;
  color: var(--primary-color);
}

.announcement-actions {
  margin-left: 16px;
  flex-shrink: 0;
}

.announcement-more-btn {
  background-color: transparent;
  border: 1px solid var(--primary-color);
  color: var(--primary-color);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.announcement-more-btn:hover {
  background-color: var(--primary-bg-hover);
}

@keyframes scrollText {
  0% {
    transform: translateX(100%);
  }
  100% {
    transform: translateX(-100%);
  }
}

/* 公告弹窗样式 */
.announcement-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.5);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}

.announcement-modal-content {
  background-color: var(--bg-white);
  border-radius: var(--radius-lg);
  width: 80%;
  max-width: 900px;
  max-height: 80vh;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.announcement-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--primary-border);
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
  color: var(--text-white);
}

.announcement-modal-header h3 {
  color: var(--text-white);
  margin: 0;
  font-size: 1.2rem;
}

.announcement-modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-white);
  transition: var(--transition-fast);
  opacity: 0.8;
}

.announcement-modal-close:hover {
  color: var(--text-white);
  opacity: 1;
  transform: rotate(90deg);
}

.announcement-modal-body {
  display: flex;
  height: 60vh;
  overflow: hidden;
}

.announcement-sidebar {
  width: 220px;
  border-right: 1px solid var(--primary-border);
  overflow-y: auto;
  background-color: var(--bg-light);
  padding: 12px 0;
}

.announcement-date-item {
  padding: 10px 16px;
  cursor: pointer;
  transition: var(--transition-fast);
  border-left: 3px solid transparent;
}

.announcement-date-item:hover {
  background-color: var(--primary-bg-hover);
}

.announcement-date-item.active {
  background-color: var(--primary-bg-active);
  border-left-color: var(--primary-color);
  font-weight: 500;
}

/* 新增：日期文本样式 */
.announcement-date-text {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 4px;
}

/* 新增：标题预览样式 */
.announcement-title-preview {
  font-size: 11px;
  color: var(--text-light);
  line-height: 1.3;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  word-break: break-all;
  opacity: 0.8;
}

/* 活跃状态下的样式调整 */
.announcement-date-item.active .announcement-date-text {
  color: var(--primary-color);
}

.announcement-date-item.active .announcement-title-preview {
  color: var(--text-medium);
  opacity: 1;
}

.announcement-detail {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
}

.announcement-detail-title {
  margin-top: 0;
  margin-bottom: 16px;
  color: var(--primary-color);
  font-size: 18px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--primary-border);
  position: relative;
}

.announcement-detail-title::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 50px;
  height: 2px;
  background: var(--accent-color);
  border-radius: 2px;
}

.announcement-detail-content {
  line-height: 1.7;
  color: var(--text-medium);
}

.announcement-detail-content p {
  margin-bottom: 15px;
}

.announcement-detail-content a {
  color: var(--primary-color);
  text-decoration: none;
  border-bottom: 1px dashed var(--primary-border);
  transition: var(--transition-fast);
}

.announcement-detail-content a:hover {
  color: var(--primary-dark);
  border-bottom-color: var(--primary-dark);
}

/* 响应式样式 */
@media (max-width: 768px) {
  .announcement-modal-content {
    width: 95%;
    max-height: 90vh;
  }
  
  .announcement-modal-body {
    flex-direction: column;
    height: auto;
    max-height: calc(90vh - 60px);
  }
  
  .announcement-sidebar {
    width: 100%;
    height: auto;
    max-height: 150px;
    border-right: none;
    border-bottom: 1px solid var(--primary-border);
  }
  
  .announcement-detail {
    height: 100%;
    overflow-y: auto;
  }
}