:root {
  font-size: var(--font-size);
}
*,
::before,
::after {
  margin: var(--margin);
  padding: var(--padding);
  border: var(--border);
  box-sizing: var(--box-sizing);
  transition: var(--transition);
  vertical-align: var(--baseline);
}
body {
  position: var(--position);
  margin: var(--margin);
  color: var(--font-color);
  font-family: var(--font-family);
  text-shadow: 0 0 3px rgba(0, 0, 0, 0.1);
}
body::before {
  content: "";
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  z-index: -2;
  width: 100%;
  height: 100vh;
  height: -webkit-fill-available;
  background-image: url(./img/intro/main-visual_bg.jpg);
  background-size: cover;
  background-position: top, bottom;
}
body::after {
  content: "";
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  z-index: -1;
  width: 100%;
  height: 100vh;
  height: -webkit-fill-available;
  background-color: rgba(255, 255, 255, 0.2);
  background-size: cover;
  background-position: top, bottom;
}
a {
  text-decoration: none;
}
img {
  display: block;
  width: 100%;
}
h1 {
  color: var(--font-color-reverse);
  font-size: 1.6rem;
  font-weight: bold;
}
h2 {
  color: var(--font-color-reverse);
  font-size: 1.2rem;
  font-weight: bold;
}
h3 {
  margin: 0;
  color: var(--font-color);
  font-size: 1.2rem;
  font-weight: bold;
}
p {
  margin: 0;
}
ul {
  padding: 0;
  list-style: none;
}
button {
  padding: 15px 20px;
  width: 100%;
  font-size: 1rem;
  color: var(--font-color);
  border-radius: 5px;
  box-shadow: 2px 3px 8px -4px rgba(0, 0, 0, 0.7);
  cursor: pointer;
}
.note {
  color: var(--assort-color);
  font-size: 0.8rem;
}
.section {
  padding: 60px 40px;
}
.section > * {
  margin: 0 auto;
  max-width: 1260px;
}
.section-title {
  margin: 0 auto;
  width: fit-content;
  text-align: center;
  font-size: 2rem;
  color: var(--assort-color);
}
.section-title-sub {
  display: block;
  width: fit-content;
  margin: 10px auto 0;
  color: var(--font-color);
  font-size: 1.2rem;
}