/* 列表容器优化 */
#container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px 15px;
}

/* 列表项基础样式优化 */
.list-group-item {
  position: relative;
  padding: 18px 20px;
  margin-bottom: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  background-color: rgba(255, 255, 255, 0.05);
  transition: all 0.3s ease;
  overflow: hidden;
}

/* 列表项悬停交互效果 */
.list-group-item:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* 标题样式优化 */
.list-group-item h6 {
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
}

.list-group-item h6::before {
  content: "📜";
  margin-right: 8px;
  font-size: 16px;
}

/* 时间样式优化 */
.list-group-item .text-muted:last-child {
  color: #b0b0b0;
  font-size: 14px;
  font-family: monospace;
}

/* 信息标签样式优化 */
.list-group-item .text-muted:not(:last-child) {
  display: inline-flex;
  align-items: center;
  margin-right: 15px;
  color: #d0d0d0;
  font-size: 14px;
}

/* 信息标签图标增强 */
.list-group-item .text-muted:not(:last-child):nth-child(2)::before {
  content: "👤";
  margin-right: 5px;
}

.list-group-item .text-muted:not(:last-child):nth-child(3)::before {
  content: "👥";
  margin-right: 5px;
}

.list-group-item .text-muted:not(:last-child):nth-child(4)::before {
  content: "⏱️";
  margin-right: 5px;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .list-group-item {
    padding: 15px 12px;
  }
  
  .list-group-item h6 {
    font-size: 16px;
    margin-bottom: 8px;
  }
  
  .list-group-item .text-muted {
    font-size: 13px;
  }
  
  .list-group-item .text-muted:not(:last-child) {
    display: block;
    margin-right: 0;
    margin-bottom: 4px;
  }
}

/* 分隔线效果 */
.list-group-item::after {
  content: "";
  position: absolute;
  left: 20px;
  right: 20px;
  top: 45px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  display: none;
}

@media (min-width: 768px) {
  .list-group-item::after {
    display: block;
  }
}