html,
body {
	height: 100%;
}

.index-block,
.index-content {
	height: 100%;
	overflow: hidden;
}
.index-block {
	background: url('../images/style_1.png?v=0.0.2') no-repeat center calc(100% - 5%) / 100%;
}
.index-content {
	background: url('../images/style_2.png') no-repeat center bottom / 100%;
}
.index-logo {
	margin: 50px auto 0;
	width: 70%;
}
.index-logo img {
	display: block;
	width: 100%;
}
.index-button {
	position: fixed;
	top: 50%;
	left: 0;
	right: 0;
    transform: translateY(-65%);
}
.index-button a {
	display: flex;
	position: relative;
	margin: 50px auto;
	padding: 2px;
	width: 55%;
	height: 70px;
	box-shadow: 3px 3px 3px rgba(0, 0, 0, .2);
	border-radius: 10px;
}
.index-button a.style-1 {
	background-color: #f46d57;
}
.index-button a.style-2 {
	background-color: #63bb4d;
}
.index-button a span {
	display: flex;
	width: 100%;
	height: 100%;
	color: #fff;
	font-size: 24px;
    justify-content: center;
    align-items: center
}
.index-copyright {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 10px 0;
    text-align: center;
}
.index-copyright a {
    color: #333;
    font-size: 14px;
}