body {
  background-color: #f0f4f8;
}

.card {
  border: none;
  border-radius: 15px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  background: linear-gradient(145deg, #ffffff 0%, #e6f0f8 100%);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(99, 102, 241, 0.08);
}

.card-header {
  background: linear-gradient(145deg, #4a90e2 0%, #6bb5ff 100%);
  border-bottom: none;
  border-radius: 15px 15px 0 0 !important;
  padding: 1.5rem 1rem;
  position: relative;
  overflow: hidden;
}

.card-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.1) 0%,
    rgba(255, 255, 255, 0) 100%
  );
  pointer-events: none;
}

.card-header h2 {
  font-size: 1rem;
  color: #ffffff;
  margin: 0;
  font-weight: 500;
  position: relative;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.card-body {
  background: linear-gradient(165deg, #ffffff 0%, #e6f0f8 100%);
  border-radius: 0 0 15px 15px;
  padding: 1.5rem;
}

.history-container {
  max-height: 700px;
  overflow-y: auto;
  padding: 0.5rem;
}

.history-container::-webkit-scrollbar {
  width: 8px;
}

.history-container::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.02);
  border-radius: 4px;
}

.history-container::-webkit-scrollbar-thumb {
  background: rgba(99, 102, 241, 0.2);
  border-radius: 4px;
}

.history-container::-webkit-scrollbar-thumb:hover {
  background: rgba(99, 102, 241, 0.3);
}

.history-item {
  border-radius: 10px;
  margin-bottom: 12px;
  background: linear-gradient(145deg, #ffffff 0%, #f8faff 100%);
  border: 1px solid rgba(99, 102, 241, 0.08);
  transition: all 0.2s ease;
  padding: 1rem;
  cursor: pointer;
}

.history-item:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.08);
  border-color: rgba(99, 102, 241, 0.15);
  background: linear-gradient(145deg, #f8faff 0%, #f0f7ff 100%);
}

.btn-group .btn {
  margin-left: 5px;
}

footer {
  padding: 30px;
  color: #64748b;
}

footer a {
  color: #64748b;
  transition: color 0.2s ease;
}

footer a:hover {
  color: #334155;
  text-decoration: none;
}

#audio {
  border-radius: 12px;
  width: 100%;
  margin-top: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.form-control {
  border-radius: 10px;
  border: 1px solid rgba(74, 144, 226, 0.15);
  transition: all 0.2s ease;
  background: #ffffff;
  -webkit-transition: all 0.2s ease;
  -moz-transition: all 0.2s ease;
  -ms-transition: all 0.2s ease;
  -o-transition: all 0.2s ease;
}

.form-control:focus {
  border-color: #6bb5ff;
  box-shadow: 0 0 0 0.2rem rgba(74, 144, 226, 0.12);
  background: #ffffff;
}

.btn {
  transition: all 0.2s ease;
  border-radius: 10px;
  font-weight: 500;
}

.btn-primary {
  background-color: #4a90e2;
  border-color: #4a90e2;
}

.btn-primary:hover {
  background-color: #357ab8;
  border-color: #357ab8;
}

.btn-info {
  background-color: #5bc0de;
  border-color: #5bc0de;
}

.btn-info:hover {
  background-color: #31b0d5;
  border-color: #31b0d5;
}

.btn-success {
  background-color: #5cb85c;
  border-color: #5cb85c;
}

.btn-success:hover {
  background-color: #4cae4c;
  border-color: #4cae4c;
}

.alert {
  border-radius: 10px;
  border: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

#loading {
  color: #6366f1;
}

.fa-spinner {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.btn-warning {
  background: linear-gradient(145deg, #fbbf24 0%, #f59e0b 100%);
  border: none;
  color: white;
}

.btn-warning:hover {
  background: linear-gradient(145deg, #f59e0b 0%, #d97706 100%);
  color: white;
}

/* 添加按钮点击反馈效果 */
.btn:active {
  transform: scale(0.98);
}

/* 优化表单控件悬停状态 */
.form-control:hover {
  border-color: rgba(74, 144, 226, 0.3);
}

/* 添加悬浮提示框样式 */
.toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 1050;
  max-width: 300px;
}

.toast {
  min-width: 200px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  margin-bottom: 0.5rem;
  transition: all 0.3s ease;
  opacity: 0;
}

.toast.show {
  opacity: 1;
}

.toast-body {
  padding: 1rem;
  color: #fff;
  border-radius: 10px;
}

.toast-danger {
  background: linear-gradient(145deg, #ef4444 0%, #dc2626 100%);
  color: #ffffff !important;
}

.toast-warning {
  background: linear-gradient(145deg, #f59e0b 0%, #d97706 100%);
  color: #ffffff !important;
}

.toast-info {
  background: linear-gradient(145deg, #3b82f6 0%, #2563eb 100%);
  color: #ffffff !important;
}

.toast-success {
  background-color: #d4edda;
  color: #ffffff !important;
  background: linear-gradient(145deg, #10b981 0%, #059669 100%);
}

.toast-loading {
  background-color: #fff;
  color: #ffffff !important;
  background: linear-gradient(145deg, #6366f1 0%, #4f46e5 100%);
  border: 1px solid #e5e7eb;
}

/* Loading overlay */
#loadingOverlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.8);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}
#loadingOverlay .spinner-border {
  width: 3rem;
  height: 3rem;
  color: #6366f1;
}

/* 自定义API管理相关样式 */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  max-width: 350px;
}

.toast {
  opacity: 0;
  transition: opacity 0.3s ease;
  margin-bottom: 10px;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 0.25rem 0.75rem rgba(0, 0, 0, 0.1);
}

.toast.show {
  opacity: 1;
}

.toast-body {
  padding: 0.75rem 1.25rem;
  border-radius: 4px;
  font-size: 0.9rem;
}

.toast-danger {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.toast-warning {
  background-color: #fff3cd;
  color: #856404;
  border: 1px solid #ffeeba;
}

.toast-info {
  background-color: #d1ecf1;
  color: #0c5460;
  border: 1px solid #bee5eb;
}

.toast-success {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.toast-loading {
  background-color: #fff;
  color: #212529;
  border: 1px solid #dee2e6;
}

/* 改进历史记录项目样式 */
.history-item {
  transition: all 0.3s ease;
  cursor: pointer;
}

.history-item:hover {
  background-color: #f8f9fa;
}

/* 进度条样式 */
.progress {
  height: 8px;
  margin-top: 10px;
}

.progress-bar {
  transition: width 0.3s ease;
  background-color: #007bff;
}

/* API 管理模态框改进 */
#apiManagerModal .modal-dialog {
  max-width: 700px;
}

#savedApisList .list-group-item {
  transition: all 0.3s ease;
  border-left: 3px solid transparent;
}

#savedApisList .list-group-item:hover {
  border-left-color: #007bff;
  background-color: #f8f9fa;
}

.api-selection-tools {
  background-color: #f8f9fa;
  padding: 10px;
  border-radius: 4px;
  margin-bottom: 10px;
}

/* 改进表单元素样式 */
.form-control:focus {
  border-color: #80bdff;
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* 按钮悬停动画 */
.btn {
  transition: all 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: #ccc;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #999;
}

/* 响应式改进 */
@media (max-width: 768px) {
  .toast-container {
    top: 10px;
    right: 10px;
    left: 10px;
    max-width: none;
  }

  #savedApisList .list-group-item {
    flex-direction: column;
    align-items: flex-start;
  }

  #savedApisList .list-group-item .btn-group {
    margin-top: 10px;
    align-self: flex-end;
  }
}