/* 全局样式 */
.App {
  text-align: center;
}

/* 自定义Ant Design主题色 */
:root {
  --primary-color: #667eea;
  --primary-hover: #764ba2;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  --text-color: #1f2937;
  --text-color-secondary: #6b7280;
  --border-color-base: #e5e7eb;
  --background-color-light: #f9fafb;
  --card-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  --card-shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
}

/* 全局布局样式 */
html, body, #root {
  height: 100%;
  margin: 0;
  padding: 0;
}

* {
  box-sizing: border-box;
}

/* 卡片悬浮效果 */
.content-card {
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  border-radius: 20px;
  overflow: hidden;
  position: relative;
}

.content-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.content-card:hover::after {
  opacity: 1;
}

.content-card:hover {
  box-shadow: 0 16px 48px rgba(102, 126, 234, 0.2), 0 8px 16px rgba(118, 75, 162, 0.1);
  transform: translateY(-8px) scale(1.02);
  border-color: rgba(102, 126, 234, 0.4);
}

/* 分类标签样式 */
.category-tag {
  border-radius: 24px;
  font-size: 13px;
  padding: 6px 16px;
  font-weight: 600;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.12) 0%, rgba(118, 75, 162, 0.12) 100%);
  border: 1px solid rgba(102, 126, 234, 0.25);
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.08);
}

.category-tag:hover {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.2) 0%, rgba(118, 75, 162, 0.2) 100%);
  transform: scale(1.08) translateY(-2px);
  box-shadow: 0 4px 16px rgba(102, 126, 234, 0.2);
  border-color: rgba(102, 126, 234, 0.4);
}

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

::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 4px;
  transition: background 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

/* 加载动画 */
.loading-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
}

/* 空状态样式 */
.empty-state {
  padding: 40px 20px;
  text-align: center;
  color: var(--text-color-secondary);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .App {
    font-size: 14px;
  }
  
  .ant-layout-sider {
    width: 200px !important;
    min-width: 200px !important;
    max-width: 200px !important;
  }
}

@media (max-width: 576px) {
  .App {
    font-size: 12px;
  }
  
  .ant-card-body {
    padding: 12px;
  }
  
  .ant-layout-sider {
    width: 180px !important;
    min-width: 180px !important;
    max-width: 180px !important;
  }
}

/* 自定义动画 - 优化性能 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  animation-fill-mode: both;
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.92) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.fade-in-scale {
  animation: fadeInScale 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  animation-fill-mode: both;
}

/* 新增：滑入动画 */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-right {
  animation: slideInRight 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  animation-fill-mode: both;
}

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

.loading-shimmer {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.4) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  background-size: 1000px 100%;
  animation: shimmer 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.85;
    transform: scale(0.98);
  }
}

.pulse {
  animation: pulse 2.5s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* 新增：微妙呼吸动画 */
@keyframes breathe {
  0%, 100% {
    transform: scale(1);
    opacity: 0.9;
  }
  50% {
    transform: scale(1.02);
    opacity: 1;
  }
}

.breathe {
  animation: breathe 3s ease-in-out infinite;
}

/* 工具类 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 8px !important; }
.mb-2 { margin-bottom: 16px !important; }
.mb-3 { margin-bottom: 24px !important; }
.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 8px !important; }
.mt-2 { margin-top: 16px !important; }
.mt-3 { margin-top: 24px !important; }