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

html {
  scroll-behavior: smooth;
  overflow-y: scroll;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto",
    "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Noto Sans CJK SC", "Source Han Sans SC", "WenQuanYi Micro Hei", sans-serif;
  line-height: 1.6;
  color: #1d1d1f;
  /* 新背景设计：淡绿色渐变 + 装饰性图案 */
  background: radial-gradient(
      ellipse at 20% 0%,
      rgba(52, 199, 89, 0.08) 0%,
      transparent 50%
    ),
    radial-gradient(
      ellipse at 80% 20%,
      rgba(45, 134, 89, 0.06) 0%,
      transparent 40%
    ),
    radial-gradient(
      ellipse at 40% 80%,
      rgba(78, 205, 196, 0.05) 0%,
      transparent 45%
    ),
    radial-gradient(
      ellipse at 90% 90%,
      rgba(52, 199, 89, 0.07) 0%,
      transparent 50%
    ),
    linear-gradient(180deg, #f8fdf9 0%, #f0f7f2 30%, #f5faf6 70%, #eef5f0 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  body {
    background: linear-gradient(135deg, #1c1c1e 0%, #000000 100%);
    color: #f2f2f7;
  }
}