body {
	margin: 0;
	font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
	background: #05070b;
	color: #e8eef5;
	line-height: 1.8;
}

a {
	color: inherit;
}

.hero {
	min-height: 90vh;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 40px 20px;
	background:
		linear-gradient(rgba(5,7,11,.65), rgba(5,7,11,.95)),
		radial-gradient(circle at center, #23415f 0%, #05070b 65%);
	text-align: center;
}

.hero-inner {
	max-width: 900px;
}

.system-label {
	color: #75cfff;
	letter-spacing: .25em;
	font-size: .85rem;
	margin-bottom: 20px;
}

h1 {
	font-size: clamp(2.4rem, 7vw, 5rem);
	margin: 0;
	letter-spacing: .12em;
	color: #ffffff;
	text-shadow: 0 0 18px #5bbcff;
}

.subtitle {
	margin-top: 20px;
	font-size: 1.15rem;
	color: #c9d8e8;
}

.catch {
	margin: 35px auto;
	max-width: 720px;
	font-size: 1.05rem;
}

.button {
	display: inline-block;
	margin-top: 20px;
	padding: 14px 32px;
	border: 1px solid #75cfff;
	border-radius: 999px;
	color: #ffffff;
	text-decoration: none;
	background: rgba(35, 120, 180, .25);
	box-shadow: 0 0 18px rgba(117, 207, 255, .25);
}

nav {
	position: sticky;
	top: 0;
	z-index: 10;
	background: rgba(5, 7, 11, .94);
	border-top: 1px solid #1d3b54;
	border-bottom: 1px solid #1d3b54;
	text-align: center;
	padding: 12px;
}

nav a {
	display: inline-block;
	margin: 4px 12px;
	color: #9fdcff;
	text-decoration: none;
	font-size: .9rem;
	letter-spacing: .12em;
}

section {
	max-width: 980px;
	margin: 70px auto;
	padding: 0 22px;
}

h2 {
	font-size: 1.5rem;
	border-left: 6px solid #75cfff;
	padding-left: 14px;
	letter-spacing: .08em;
}

.card {
	background: linear-gradient(135deg, #0d1420, #111d2b);
	border: 1px solid #244866;
	border-radius: 14px;
	padding: 24px;
	margin-top: 22px;
}

.news {
	border-left: 4px solid #ff5d5d;
}

.character-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
	gap: 18px;
}

.character h3 {
	margin-top: 0;
	color: #ffffff;
}

.keyword {
	color: #75cfff;
	font-weight: bold;
}

footer {
	text-align: center;
	padding: 40px 20px;
	color: #7f8fa3;
	border-top: 1px solid #1d3b54;
	background: #030508;
}