@charset "utf-8";

html, body {
	height: 100%;
}

body {
	margin: 0;
	font-family: "Microsoft Yahei", "Hiragino Sans GB", "Helvetica Neue", Helvetica, tahoma, arial, Verdana, sans-serif, "WenQuanYi Micro Hei", "\5B8B\4F53";
	color: rgba(255, 255, 255, 0.92);
	background: #071a33;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

* {
	box-sizing: border-box;
}

a {
	color: inherit;
}

.lhg-page {
	min-height: 100%;
	display: flex;
	flex-direction: column;
}

.lhg-container {
	max-width: 1120px;
	padding: 0 18px;
	margin: 0 auto;
	width: 100%;
}

.lhg-hero {
	position: relative;
	overflow: hidden;
	padding: clamp(42px, 5.5vw, 74px) 0 clamp(28px, 4.5vw, 56px);
}

.lhg-hero-bg {
	position: absolute;
	inset: 0;
	background:
		radial-gradient(900px 420px at 24% 28%, rgba(68, 152, 255, 0.24), rgba(68, 152, 255, 0) 60%),
		radial-gradient(760px 420px at 80% 14%, rgba(255, 227, 138, 0.16), rgba(255, 227, 138, 0) 60%),
		linear-gradient(180deg, rgba(7, 26, 51, 0.94), rgba(5, 16, 33, 0.98));
}

.lhg-hero-bg::after {
	content: "";
	position: absolute;
	inset: 0;
	background: url(../images/lhg_PCtopbg.png) no-repeat top center;
	background-size: cover;
	opacity: 0.28;
	mix-blend-mode: lighten;
}

.lhg-hero-grid {
	position: relative;
	display: grid;
	grid-template-columns: 1.1fr 0.9fr;
	align-items: center;
	gap: clamp(18px, 3.4vw, 44px);
}

.lhg-kicker {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	padding: 8px 12px;
	border: 1px solid rgba(255, 255, 255, 0.12);
	border-radius: 999px;
	background: rgba(8, 24, 50, 0.55);
	box-shadow: 0 12px 34px rgba(0, 0, 0, 0.35);
	font-size: 12px;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: rgba(255, 255, 255, 0.86);
}

.lhg-title {
	margin: 14px 0 6px;
	font-size: clamp(34px, 4.4vw, 58px);
	line-height: 1.06;
	letter-spacing: 0.02em;
	font-weight: 750;
}

.lhg-subtitle {
	margin: 0;
	font-size: clamp(16px, 2.2vw, 22px);
	color: rgba(255, 226, 138, 0.92);
	letter-spacing: 0.08em;
}

.lhg-lead {
	margin: 16px 0 0;
	max-width: 52ch;
	font-size: clamp(14px, 1.6vw, 18px);
	line-height: 1.85;
	color: rgba(255, 255, 255, 0.84);
}

.lhg-note {
	margin-top: 14px;
	font-size: 12px;
	line-height: 1.6;
	color: rgba(255, 255, 255, 0.6);
}

.lhg-hero-art img {
	width: 100%;
	height: auto;
	display: block;
	filter: drop-shadow(0 18px 54px rgba(0, 0, 0, 0.45));
	transform: translateY(4px);
}

.effect-group-container {
	margin-top: 20px;
	display: flex;
	align-items: center;
	gap: 12px;
	flex-wrap: wrap;
}

.btn-border {
	display: inline-flex;
	border-radius: 14px;
	padding: 2px;
	background: linear-gradient(135deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.04));
}

.downbtn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 54px;
	padding: 0 18px;
	border-radius: 12px;
	text-decoration: none;
	font-size: 16px;
	font-weight: 700;
	letter-spacing: 0.02em;
	color: rgba(255, 255, 255, 0.92);
	background: rgba(255, 255, 255, 0.14);
	backdrop-filter: blur(10px);
	-webkit-backdrop-filter: blur(10px);
	box-shadow: 0 16px 46px rgba(0, 0, 0, 0.32);
	transition: transform 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
}

.downbtn:hover {
	transform: translateY(-1px);
	background: rgba(18, 95, 204, 0.68);
	box-shadow: 0 22px 58px rgba(0, 0, 0, 0.4);
}

.lhg-section {
	padding: clamp(30px, 5vw, 70px) 0;
	background: linear-gradient(180deg, rgba(7, 26, 51, 0.92), rgba(5, 16, 33, 0.98));
}

.lhg-section-alt {
	background: linear-gradient(180deg, rgba(5, 16, 33, 0.98), rgba(7, 26, 51, 0.92));
}

.lhg-split {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: clamp(18px, 4vw, 56px);
	align-items: center;
}

.lhg-split-reverse .lhg-media {
	order: 2;
}

.lhg-media img {
	width: 100%;
	height: auto;
	display: block;
	border-radius: 18px;
	background: rgba(255, 255, 255, 0.06);
	box-shadow: 0 22px 70px rgba(0, 0, 0, 0.45);
}

.lhg-text h2 {
	margin: 0 0 14px;
	font-size: clamp(20px, 2.8vw, 32px);
	letter-spacing: 0.02em;
	color: rgba(255, 226, 138, 0.94);
}

.lhg-text p {
	margin: 0 0 10px;
	font-size: clamp(14px, 1.7vw, 18px);
	line-height: 1.9;
	color: rgba(255, 255, 255, 0.84);
}

.lhg-footer {
	margin-top: auto;
	padding: 28px 0 34px;
	background: #050f21;
	border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.lhg-footer-top {
	font-size: 14px;
	line-height: 1.8;
	color: rgba(255, 255, 255, 0.86);
}

.lhg-footer-bottom {
	margin-top: 10px;
	display: flex;
	align-items: center;
	flex-wrap: wrap;
	gap: 10px;
	font-size: 13px;
	line-height: 1.6;
	color: rgba(255, 255, 255, 0.64);
}

.lhg-footer-bottom a {
	color: rgba(255, 226, 138, 0.92);
	text-decoration: none;
}

.lhg-footer-bottom a:hover {
	text-decoration: underline;
}

.lhg-dot {
	opacity: 0.45;
}

@media (max-width: 920px) {
	.lhg-hero-grid {
		grid-template-columns: 1fr;
	}
	.lhg-hero-art {
		order: -1;
	}
	.lhg-hero-art img {
		max-width: 520px;
		margin: 0 auto;
	}
	.lhg-split,
	.lhg-split-reverse {
		grid-template-columns: 1fr;
	}
	.lhg-split-reverse .lhg-media {
		order: 0;
	}
}

@media (max-width: 520px) {
	.downbtn {
		width: 100%;
	}
	.btn-border {
		width: 100%;
	}
	.effect-group-container {
		align-items: stretch;
	}
	.lhg-media img {
		border-radius: 14px;
	}
}