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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.5;
  color: #333;
  background: #f0f2f5;
  min-height: 100vh;
}

.app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.page-header {
  margin-bottom: 20px;
}

.page-header h1 {
  font-size: 20px;
  font-weight: 600;
  color: #1f1f1f;
}

/* 查询区 */
.query-section {
  background: #fff;
  padding: 20px;
  border-radius: 4px;
  margin-bottom: 20px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.query-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.search-box {
  display: flex;
  align-items: center;
  flex: 1;
  max-width: 400px;
  height: 36px;
  border: 1px solid #d9d9d9;
  border-radius: 4px;
  padding: 0 12px;
  background: #fff;
}

.search-box:focus-within {
  border-color: #1890ff;
  box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.15);
}

.search-icon {
  color: #999;
  margin-right: 8px;
  font-size: 14px;
}

.search-box input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 14px;
}

.clear-btn {
  background: none;
  border: none;
  color: #999;
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  padding: 0 4px;
}

.clear-btn:hover {
  color: #333;
}

.btn-primary {
  height: 36px;
  padding: 0 20px;
  background: #1890ff;
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  cursor: pointer;
}

.btn-primary:hover {
  background: #40a9ff;
}

.btn-primary:disabled {
  background: #bae7ff;
  cursor: not-allowed;
}

/* 标签页 */
.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
}

.tab {
  padding: 6px 16px;
  border: none;
  background: transparent;
  color: #666;
  font-size: 14px;
  cursor: pointer;
  border-radius: 4px;
}

.tab:hover {
  color: #1890ff;
}

.tab.active {
  color: #1890ff;
  background: #e6f7ff;
}

/* 日期 */
.date-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
}

.date-range {
  display: flex;
  align-items: center;
  gap: 8px;
}

.date-range input {
  height: 32px;
  padding: 0 8px;
  border: 1px solid #d9d9d9;
  border-radius: 4px;
  font-size: 13px;
}

.date-sep {
  color: #999;
}

.query-tip {
  font-size: 12px;
  color: #999;
}

/* 图表区 */
.charts-section {
  background: #fff;
  padding: 20px;
  border-radius: 4px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.charts-section.hidden {
  display: none;
}

.chart-wrap {
  margin-bottom: 24px;
}

.chart-wrap:last-child {
  margin-bottom: 0;
}

.chart-title {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 12px;
  color: #1f1f1f;
}

.chart {
  width: 100%;
  height: 320px;
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: #999;
  font-size: 14px;
}

.empty-state.hidden {
  display: none;
}

/* 错误提示 */
.error-toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 20px;
  background: #ff4d4f;
  color: #fff;
  border-radius: 4px;
  font-size: 14px;
  display: none;
  z-index: 1000;
}

.error-toast.show {
  display: block;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}