:root {
  font-family: system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;

  color-scheme: light dark;
  color: rgba(255, 255, 255, 0.87);
  background-color: #242424;

  --background-color: #242424;
  --text-color: #3d3d3d;

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  font-weight: 500;
  color: #646cff;
  text-decoration: inherit;
}

a:hover {
  color: #535bf2;
}

.dark {
  --background-color: #242424;
  --text-color: rgb(228, 228, 228);
}

body {
  margin: 0;
  display: flex;
  place-items: center;
  min-width: 320px;
  min-height: 100vh;
}

h1 {
  font-size: 3.2em;
  line-height: 1.1;
}

button {
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0.6em 1.2em;
  font-size: 1em;
  font-weight: 500;
  font-family: inherit;
  background-color: var(--background-color);
  color: var(--text-color);
  cursor: pointer;
  transition: border-color 0.25s;
}
button:hover {
  border-color: #646cff;
}
button:focus,
button:focus-visible {
  outline: 4px auto -webkit-focus-ring-color;
}

.card {
  padding: 2em;
}

#app {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem;
  text-align: center;
}

@media (prefers-color-scheme: light) {
  :root {
    color: #213547;
    background-color: #ffffff;
  }
  a:hover {
    color: #747bff;
  }
  button {
    background-color: #f9f9f9;
  }
}

p,a,h1,h2,h3,h4,h5,h6 {
  color: var(--text-color);
}

:root {
  --pre-background-color: #f5f5f5; /* 光明模式的背景颜色 */
  --pre-text-color: #333; /* 光明模式的字体颜色 */
}

.dark {
  --pre-background-color: #2d2d2d; /* 黑暗模式的背景颜色 */
  --pre-text-color: #cccccc; /* 黑暗模式的字体颜色 */
}