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

body {
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
  background:
    radial-gradient(circle at 0% 0%, rgba(125, 174, 255, 0.2), transparent 42%),
    radial-gradient(circle at 100% 12%, rgba(145, 220, 255, 0.2), transparent 40%),
    linear-gradient(180deg, #f4f8ff 0%, #f8fbff 100%);
  color: #243041;
  font-family: 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
}

/* CSS Variables */
:root {
  /* Colors */
  --primary-bg: #f8fbff;
  --secondary-bg: #f5f9ff;
  --header-bg: #12345b;
  --text-primary: #243041;
  --text-secondary: #48627f;
  --text-light: #6c86a1;
  --border-color: rgba(28, 73, 124, 0.12);
  --shadow-color: rgba(27, 74, 123, 0.16);

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 15px;
  --spacing-lg: 20px;
  --spacing-xl: 30px;

  /* Border Radius */
  --border-radius-sm: 6px;
  --border-radius-md: 14px;

  /* Transitions */
  --transition-quick: 0.2s ease;
  --transition-normal: 0.3s ease;

  /* Box Shadows */
  --shadow-sm: 0 6px 16px rgba(28, 73, 124, 0.08);
  --shadow-md: 0 12px 26px rgba(28, 73, 124, 0.1);
  --shadow-lg: 0 18px 34px rgba(28, 73, 124, 0.16);
}