:root {
  --primary-color: #4f46e5;
  --secondary-color: #f9fafb;
  --border-color: #e5e7eb;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --success-color: #10b981;
  --error-color: #ef4444;
  --warning-color: #f59e0b;
  --info-color: #3b82f6;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: #f3f4f6;
}

.page-break-before {
  page-break-before: always; /* 老写法 */
  break-before: page; /* 新写法 */
}
.page-break-avoid {
  page-break-inside: avoid;
  break-inside: avoid;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

header {
  text-align: center;
  margin-bottom: 30px;
  padding: 20px;
  background: white;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

h1 {
  color: var(--primary-color);
  margin-bottom: 10px;
}

.app-description {
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto;
}

.card {
  background: white;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  padding: 24px;
  margin-bottom: 24px;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.form-group {
  margin-bottom: 16px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

input,
textarea,
select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 16px;
  transition: border-color 0.15s;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

button {
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 6px;
  padding: 12px 20px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.15s;
}

button:hover {
  background-color: #4338ca;
}

button:disabled {
  background-color: var(--border-color);
  cursor: not-allowed;
}

.btn-secondary {
  background-color: var(--text-secondary);
}

.btn-secondary:hover {
  background-color: var(--text-primary);
}

.result-container {
  margin-top: 20px;
  padding: 16px;
  border-radius: 6px;
  background-color: var(--secondary-color);
  display: none;
}

.result-container.visible {
  display: block;
}

.status {
  padding: 12px;
  border-radius: 6px;
  margin: 10px 0;
  display: none;
}

.status.visible {
  display: block;
}

.status-success {
  background-color: #d1fae5;
  color: var(--success-color);
  border: 1px solid var(--success-color);
}

.status-error {
  background-color: #fee2e2;
  color: var(--error-color);
  border: 1px solid var(--error-color);
}

.status-loading {
  background-color: #fffbeb;
  color: var(--warning-color);
  border: 1px solid var(--warning-color);
  display: flex;
  align-items: center;
}

.loading-spinner {
  display: none;
  width: 12px;
  height: 12px;
  border: 2px solid #f3f3f3;
  border-top: 2px solid var(--warning-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  flex-shrink: 0;
  align-items: center;
}

.status-loading .loading-spinner {
  display: inline-block;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.loading .loading-spinner {
  display: inline-block;
}

.query-result {
  white-space: pre-wrap;
  line-height: 1.6;
  background-color: white;
  padding: 36px;
  border-radius: 6px;
  /* border: 1px solid var(--border-color); */
  margin-top: 8px;
}

.message-stream {
  margin-top: 16px;
}

#processResult {
  margin-top: 16px;
}

#processResult h3 {
  color: var(--text-secondary);
  font-size: 1rem;
}

#queryResult h3 {
  color: var(--text-secondary);
  font-size: 1rem;
}

.message-container {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: white;
  padding: 12px;
}

.message {
  margin-bottom: 12px;
  padding: 8px 12px;
  border-radius: 4px;
  border-left: 4px solid;
  font-size: 14px;
  line-height: 1.4;
}

.message-start {
  background-color: #f0f9ff;
  border-left-color: var(--info-color);
}

.message-info {
  background-color: #fef3c7;
  border-left-color: var(--warning-color);
}

.message-answer {
  background-color: #d1fae5;
  border-left-color: var(--success-color);
}

.message-complete {
  background-color: #dbeafe;
  border-left-color: var(--primary-color);
}

.message-error {
  background-color: #fee2e2;
  border-left-color: var(--error-color);
}

.message-timestamp {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

footer {
  text-align: center;
  margin-top: 30px;
  padding: 20px;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

@media (max-width: 768px) {
  .container {
    padding: 10px;
  }

  .card {
    padding: 16px;
  }
}