/* 卡片 */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
  border: 1px solid rgba(0,0,0,0.02);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  min-width: 0; /* Critical: prevents grid blowout */
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 50px; /* Pill shape */
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  outline: none;
  gap: 8px;
  user-select: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #FF5C72 100%);
  color: white;
  box-shadow: 0 4px 12px rgba(255, 36, 66, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #FF3B55 0%, #FF7A8C 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255, 36, 66, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(255, 36, 66, 0.3);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
  filter: grayscale(20%);
}

.btn-secondary {
  background: white;
  color: var(--text-main);
  border: 1px solid #d1d5db;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.btn-secondary:hover:not(:disabled) {
  background: #f9fafb;
  border-color: #9ca3af;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn-secondary:active {
  transform: translateY(0);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.btn-secondary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* 通用输入框 (旧版保留，以防万一) */
.input {
  width: 100%;
  padding: 20px 32px;
  background: white;
  border: 2px solid transparent;
  border-radius: 100px;
  font-size: 17px;
  color: var(--text-main);
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}

.input:focus {
  border-color: var(--primary);
  background: white;
  box-shadow: 0 8px 24px rgba(255, 36, 66, 0.12);
  outline: none;
}

.input::placeholder {
  color: var(--text-placeholder);
  font-weight: 400;
}

/* 标签 */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.tag {
  padding: 10px 20px;
  background: #F7F8FA;
  border: 1px solid transparent;
  border-radius: 100px;
  font-size: 14px;
  color: var(--text-sub);
  cursor: pointer;
  transition: all 0.2s ease;
  font-weight: 500;
}

.tag:hover {
  background: white;
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 4px 12px rgba(255, 36, 66, 0.1);
  transform: translateY(-2px);
}

/* Tabs */
.tabs-container {
  display: flex;
  gap: 24px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 24px;
}

.tab-item {
  padding: 12px 4px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  cursor: pointer;
  position: relative;
  transition: all 0.3s;
}

.tab-item:hover {
  color: var(--text-main);
}

.tab-item.active {
  color: var(--primary);
  font-weight: 600;
}

.tab-item.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  border-radius: 2px 2px 0 0;
}

/* 图标工具类 */
.icon-xs {
  width: 14px;
  height: 14px;
  vertical-align: text-bottom;
  margin-right: 2px;
  display: inline-block;
}

/* 加载动画 */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s ease-in-out infinite;
}

.spinner-sm {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s ease-in-out infinite;
}

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

/* 进度条 */
.progress-container {
  width: 100%;
  background: #F0F0F0;
  border-radius: 100px;
  height: 8px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--primary);
  border-radius: 100px;
  transition: width 0.4s ease;
}

/* 错误提示 */
.error-msg {
  background: #FFF2F0;
  border: 1px solid #FFCCC7;
  color: #FF4D4F;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  margin-top: 16px;
}

/* 网格布局 */
.grid-cols-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.grid-cols-4 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}

/* 图片卡片统一样式 - 用于生成页面和结果页面 */
.image-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid #f0f0f0;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  /* 确保卡片有最小高度,防止未加载时塌陷 */
  min-height: 320px;
}

.image-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

/* 全屏模态框 */
.modal-fullscreen {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.9);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}
.modal-body {
  background: white;
  width: 100%;
  max-width: 1000px;
  height: 90vh;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.modal-header {
  padding: 20px;
  border-bottom: 1px solid #eee;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.close-icon {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
}