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

html, body, #app {
  height: 100%;
  font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  overflow: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

.admin-layout {
  height: 100vh;
  display: flex;
}
.admin-layout .sidebar {
  width: 220px;
  background: #304156;
  flex-shrink: 0;
  transition: width 0.3s;
  display: flex;
  flex-direction: column;
}
.admin-layout .sidebar.collapsed {
  width: 64px;
}
.admin-layout .sidebar .logo {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #263445;
  flex-shrink: 0;
}
.admin-layout .sidebar .logo .logo-text {
  color: #fff;
  font-size: 18px;
  font-weight: bold;
  white-space: nowrap;
  transition: opacity 0.3s;
}
.admin-layout .sidebar.collapsed .logo-text {
  opacity: 0;
  width: 0;
  overflow: hidden;
}
.admin-layout .sidebar .menu-wrap {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
}
.admin-layout .sidebar .menu-wrap::-webkit-scrollbar {
  width: 4px;
}
.admin-layout .sidebar .menu-wrap::-webkit-scrollbar-track {
  background: transparent;
}
.admin-layout .sidebar .menu-wrap::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
}
.admin-layout .sidebar .menu-wrap::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}
.admin-layout .main-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.admin-layout .main-container .header {
  height: 60px;
  background: #fff;
  box-shadow: 0 1px 4px rgba(0, 21, 41, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 10;
}
.admin-layout .main-container .header .left {
  display: flex;
  align-items: center;
  gap: 20px;
}
.admin-layout .main-container .header .left .collapse-btn {
  cursor: pointer;
  font-size: 20px;
}
.admin-layout .main-container .header .left .breadcrumb {
  color: #666;
  font-size: 14px;
}
.admin-layout .main-container .header .right {
  display: flex;
  align-items: center;
  gap: 20px;
}
.admin-layout .main-container .header .right .user-info {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}
.admin-layout .main-container .content {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  background: #f0f2f5;
}

.page-container {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
}
.page-container .page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid #eee;
}
.page-container .page-header .title {
  font-size: 18px;
  font-weight: bold;
}

.search-form {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 20px;
}
.search-form .form-item {
  display: flex;
  align-items: center;
}
.search-form .form-item .label {
  margin-right: 10px;
  white-space: nowrap;
}

.table-footer {
  margin-top: 20px;
  display: flex;
  justify-content: flex-end;
}

.stat-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 20px;
}
.stat-cards .stat-card {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  display: flex;
  align-items: center;
}
.stat-cards .stat-card .icon {
  width: 60px;
  height: 60px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-right: 16px;
}
.stat-cards .stat-card .info .value {
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 4px;
}
.stat-cards .stat-card .info .label {
  font-size: 14px;
  color: #999;
}

.chart-container {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  margin-bottom: 20px;
}
.chart-container .chart-title {
  font-size: 16px;
  font-weight: bold;
  margin-bottom: 20px;
}
.chart-container .chart {
  height: 300px;
}