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

:root {
  --color-primary: #405DF9;
  --color-secondary: #6C63F0;
  --color-accent-1: #7342CC;
  --color-accent-2: #B750BE;
  --color-accent-3: #ED589D;
  --color-accent-4: #FB466C;
  --color-accent-5: #FFC159;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background: linear-gradient(135deg, #f8fafc 0%, #e8f4f8 100%);
  color: #1e293b;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main-content {
  padding-top: 80px;
  min-height: calc(100vh - 300px);
}

/* 卡片样式 */
.card {
  background: white;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover {
  box-shadow: 0 8px 30px rgba(64, 93, 249, 0.12);
  transform: translateY(-2px);
  border-color: rgba(64, 93, 249, 0.2);
}

.card-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #1e293b;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
}

/* 按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
}

.btn-primary:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 12px rgba(64, 93, 249, 0.4);
}

.btn-secondary {
  background: rgba(64, 93, 249, 0.08);
  color: var(--color-primary);
}

.btn-secondary:hover {
  background: rgba(64, 93, 249, 0.16);
}

/* 动画 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeInUp 0.6s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* 统计卡片 */
.stat-card {
  background: white;
  border-radius: 12px;
  padding: 20px;
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
  color: #1e293b;
  margin: 8px 0;
}

.stat-label {
  font-size: 14px;
  color: #64748b;
}

.stat-change {
  font-size: 13px;
  font-weight: 500;
}

.stat-change.positive {
  color: #10b981;
}

.stat-change.negative {
  color: #ef4444;
}

/* 渐变背景 */
.gradient-text {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 表格样式 */
.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.data-table th {
  font-size: 13px;
  font-weight: 600;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.data-table td {
  font-size: 14px;
  color: #1e293b;
}

.data-table tr:hover {
  background: rgba(64, 93, 249, 0.02);
}

/* 进度条 */
.progress-bar {
  height: 8px;
  background: #e5e7eb;
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.8s ease;
}

/* 标签 */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.badge-success {
  background: #d1fae5;
  color: #059669;
}

.badge-warning {
  background: #fef3c7;
  color: #d97706;
}

.badge-danger {
  background: #fee2e2;
  color: #dc2626;
}

.badge-info {
  background: #dbeafe;
  color: #2563eb;
}

/* 响应式 */
@media (max-width: 768px) {
  .stat-value {
    font-size: 24px;
  }
  
  .card {
    padding: 16px;
  }
}

/* 懒加载 */
.lazy-load {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.lazy-load.loaded {
  opacity: 1;
}

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}