:root {
  --bg: #f4f7fb;
  --page-max: 520px;
}

* {
  box-sizing: border-box;
}

html {
  width: 100%;
  min-height: 100%;
}

body {
  margin: 0;
  width: 100%;
  min-height: 100%;
  background: var(--bg);
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Hiragino Sans",
    "Hiragino Kaku Gothic ProN",
    "Noto Sans JP",
    "Yu Gothic",
    sans-serif;
}

.lp {
  width: 100%;
  min-height: 100vh;
}

.lp-visual {
  width: 100%;
  margin: 0 auto;
}

.lp-image {
  display: block;
  width: 100%;
  height: auto;
}

/* tablet / desktop */
@media (min-width: 768px) {
  body {
    padding: 32px 0;
  }

  .lp {
    max-width: var(--page-max);
    margin: 0 auto;
    background: #fff;
  }

  .lp-image {
    border-radius: 16px;
  }
}