/* base.css — リセットと基本スタイル */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Segoe UI",
    "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Meiryo", sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #fff;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: opacity 0.25s ease;
}

a:hover {
  opacity: 0.75;
}

ul,
ol {
  list-style: none;
}