.info-banner {
  position: fixed;
  top: 40px;
  right: 20px;
  width: 320px;
  background: #111 url('https://www.transparenttextures.com/patterns/black-orchid.png');
  border: 1px solid #444;
  color: white;
  border-radius: 8px;
  font-size: 16px;
  z-index: 9999;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
  animation: slideInRight 0.6s ease-out forwards;
  overflow: hidden;
}

/* Header giống như thanh tiêu đề */
.info-banner-header {
  background: linear-gradient(to bottom, #666, #333);
  padding: 10px 16px;
  font-weight: bold;
  font-size: 16px;
  border-bottom: 1px solid #222;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Nút Đóng */
.close-btn {
  background: none;
  border: none;
  color: white;
  font-size: 20px;
  font-weight: bold;
  cursor: pointer;
  transition: color 0.2s ease-in-out;
}

.close-btn:hover {
  color: #f87171;
}

/* Nội dung chính */
.info-banner-content {
  padding: 20px;
  font-size: 16px;
  text-align: justify;;
}

/* Hiệu ứng trượt */
@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}