*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Noto Sans JP', 'Yu Gothic', sans-serif;
  color: #1a1a2e;
  line-height: 1.7;
  font-size: 15px;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a { text-decoration: none; color: inherit; }