.br-sp {
  display: none;
}
@media (max-width: 768px) {
  .br-sp {
    display: block;
  }
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
  display: block;
}

html, body {
  margin: 0;
}

body {
  line-height: 1;
}

ol, ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

li {
  margin: 0;
  padding: 0;
}

blockquote, q {
  quotes: none;
}

blockquote:before, blockquote:after,
q:before, q:after {
  content: "";
  content: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

button, input, optgroup, select, textarea {
  font-family: inherit;
  font-size: 100%;
  line-height: 1.15;
  margin: 0;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
}

a {
  text-decoration: none;
  color: inherit;
  background-color: transparent;
  outline: none;
  border: none;
  cursor: pointer;
}
a:hover, a:active, a:focus, a:visited {
  text-decoration: none;
  outline: none;
}

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

h1, h2, h3, h4, h5, h6 {
  font-size: 100%;
  font-weight: normal;
  margin: 0;
  padding: 0;
}

p {
  margin: 0;
  padding: 0;
}

address {
  font-style: normal;
}

strong {
  font-weight: bold;
}

em {
  font-style: italic;
}

hr {
  border: 0;
  height: 1px;
  margin: 0;
  padding: 0;
}

pre, code, kbd, samp {
  font-family: monospace, monospace;
  font-size: 1em;
}

fieldset {
  border: 0;
  margin: 0;
  padding: 0;
}

legend {
  padding: 0;
}

summary {
  display: list-item;
  cursor: pointer;
}

html {
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: "Zen Kaku Gothic New", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  width: 100%;
  margin: 0;
  padding: 0;
  color: #283136;
}

.page-top {
  position: relative;
  width: 100vw;
  height: 670px;
  overflow: hidden;
}
@media (max-width: 768px) {
  .page-top {
    height: 520px;
  }
}

.background-decoration {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.gradient-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("../assets/images/index/img_mv1.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.logo {
  position: absolute;
  top: 40px;
  left: 40px;
  z-index: 10;
}

.logo-img {
  height: 110px;
  width: auto;
}

.wave {
  position: absolute;
  bottom: 0;
  left: -1px;
  right: -1px;
  width: calc(100% + 4px);
  box-sizing: border-box;
  z-index: 5;
  pointer-events: none;
}

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