:root {
  --primary-color: #6366f1;
  --primary-hover: #4f46e5;
  --bg-color: #f9fafb;
  --card-bg: #ffffff;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --border-color: #e5e7eb;
  --success-color: #10b981;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  margin: 0;
  padding: 2rem;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
}

.header {
  text-align: center;
  margin-bottom: 2rem;
}

.header h1 {
  font-weight: 700;
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(0,0,0,.08);
  border: 1px solid var(--border-color);
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

select, input[type="text"], input[type="file"] {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  font-size: 1rem;
  box-sizing: border-box;
}

select:focus, input[type="text"]:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.model-info {
  background: #f1f5f9;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

.thumbs {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin: 1rem 0;
}

.thumbs img {
  height: 100px;
  width: auto;
  border-radius: 8px;
  border: 2px solid var(--border-color);
  object-fit: cover;
}

.thumbs img:hover {
  border-color: var(--primary-color);
}

.btn {
  background: var(--primary-color);
  color: white;
  padding: 0.875rem 1.75rem;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn:hover:not(:disabled) {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background: #f3f4f6;
  color: var(--text-primary);
}

.status {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-left: 1rem;
}

.status.working {
  color: var(--primary-color);
  font-weight: 500;
}

.output {
  background: #f8fafc;
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  white-space: pre-wrap;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.95rem;
  line-height: 1.5;
  max-height: 300px;
  overflow-y: auto;
}

.output.success {
  border-left: 4px solid var(--success-color);
}

.flex {
  display: flex;
  align-items: center;
}

.actions {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-top: 1.5rem;
}

.model-tag {
  display: inline-block;
  background: #e0e7ff;
  color: var(--primary-hover);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-left: 1rem;
}